WorldWideScience

Sample records for biodesulfurization de-fc07-97id13570 final

  1. Gasoline Biodesulfurization DE-FC07-97ID13570 FINAL REPORT

    Energy Technology Data Exchange (ETDEWEB)

    Pienkos, Philip T.

    2002-01-15

    Nine strains were identified to grow with gasoline as sole sulfur source. Two different genes were cloned from Gordonia terrae KGB1 and tested for the ability to support gasoline BDS. The first of these, fmoA, was cloned by screening a KGB1 gene library for the ability to convert indole to indigo (a sulfur-regulated capability in KGB1). The fmoA gene was overexpressed in a gasoline tolerant strain of Pseudomonas putida PpG1 and the recombinant strain was shown to convert thiophene to a dimer of thiophene sulfoxide at rates nearly two orders of magnitude higher than KGB1 could catalyze the reaction. Despite this high activity the recombinant PpG1 was unable to demonstrate any activity against gasoline either in shake flask or in bench-scale gasoline BDS bioreactor. A second gene (toeA) was cloned from KGB1 and shown to support growth of Rhodococcus erythropolis JB55 on gasoline. The toeA gene was also identified in another gasoline strain T. wratislaviensis EMT4, and was identified as a homolog of dszA from R. erythropolis IGTS8. Expression of this gene in JB55 supported conversion of DBTO2 (the natural substrate for DszA) to HPBS, but activity against gasoline was low and BDS results were inconsistent. It appeared that activity was directed against C2- and C3-thiophenes. Efforts to increase gene expression by plasmid manipulation, by addition of flavin reductase genes, or by expression in PpG1 were unsuccessful. The DszC protein (DBT monooxygenase) from IGTS8 has very little activity against the sulfur compounds in gasoline, but a mutant enzyme with a substitution of phenylalanine for valine at position 261 was shown to have an altered substrate range. This alteration resulted in increased activity against gasoline, with activity towards mainly C3- and C4-thiophenes and benzothiophene. A mutant library of dszB was constructed by RACHITT (W. C. Coco et al., DNA shuffling method for generating highly recombined genes and evolved enzymes. 2001. Nature Biotech. 19:354-359) method of in vitro recombination. Methods for analysis were developed and a preliminary analysis of the library was performed. A preliminary gasoline process design was constructed and process economics were determined based upon assumptions made from experimental results. The projected cost of gasoline BDS was determined to be competitive with current competing technologies.

  2. Gasoline Biodesulfurization DE-FC07-97ID13570 FINAL REPORT; FINAL

    International Nuclear Information System (INIS)

    Pienkos, Philip T.

    2002-01-01

    Nine strains were identified to grow with gasoline as sole sulfur source. Two different genes were cloned from Gordonia terrae KGB1 and tested for the ability to support gasoline BDS. The first of these, fmoA, was cloned by screening a KGB1 gene library for the ability to convert indole to indigo (a sulfur-regulated capability in KGB1). The fmoA gene was overexpressed in a gasoline tolerant strain of Pseudomonas putida PpG1 and the recombinant strain was shown to convert thiophene to a dimer of thiophene sulfoxide at rates nearly two orders of magnitude higher than KGB1 could catalyze the reaction. Despite this high activity the recombinant PpG1 was unable to demonstrate any activity against gasoline either in shake flask or in bench-scale gasoline BDS bioreactor. A second gene (toeA) was cloned from KGB1 and shown to support growth of Rhodococcus erythropolis JB55 on gasoline. The toeA gene was also identified in another gasoline strain T. wratislaviensis EMT4, and was identified as a homolog of dszA from R. erythropolis IGTS8. Expression of this gene in JB55 supported conversion of DBTO2 (the natural substrate for DszA) to HPBS, but activity against gasoline was low and BDS results were inconsistent. It appeared that activity was directed against C2- and C3-thiophenes. Efforts to increase gene expression by plasmid manipulation, by addition of flavin reductase genes, or by expression in PpG1 were unsuccessful. The DszC protein (DBT monooxygenase) from IGTS8 has very little activity against the sulfur compounds in gasoline, but a mutant enzyme with a substitution of phenylalanine for valine at position 261 was shown to have an altered substrate range. This alteration resulted in increased activity against gasoline, with activity towards mainly C3- and C4-thiophenes and benzothiophene. A mutant library of dszB was constructed by RACHITT (W. C. Coco et al., DNA shuffling method for generating highly recombined genes and evolved enzymes. 2001. Nature Biotech. 19:354-359) method of in vitro recombination. Methods for analysis were developed and a preliminary analysis of the library was performed. A preliminary gasoline process design was constructed and process economics were determined based upon assumptions made from experimental results. The projected cost of gasoline BDS was determined to be competitive with current competing technologies

  3. Dicty_cDB: FC-AI07 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI07 (Link to dictyBase) - - - Contig-U15296-1 | Contig-U15756-1 FC-AI...07P (Link to Original site) FC-AI07F 580 FC-AI07Z 723 FC-AI07P 1303 - - Show FC-AI07 Library FC (...Link to library) Clone ID FC-AI07 (Link to dictyBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Con...tig-U15296-1 | Contig-U15756-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI...07Q.Seq.d/ Representative seq. ID FC-AI07P (Link to Original site) Representative DNA sequence >FC-AI07 (FC-AI

  4. DELTA-DIESEL ENGINE LIGHT TRUCK APPLICATION Contract DE-FC05-97OR22606 Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Hakim, Nabil Balnaves, Mike

    2003-05-27

    DELTA Diesel Engine Light Truck Application End of Contract Report DE-FC05-97-OR22606 EXECUTIVE SUMMARY This report is the final technical report of the Diesel Engine Light Truck Application (DELTA) program under contract DE-FC05-97-OR22606. During the course of this contract, Detroit Diesel Corporation analyzed, designed, tooled, developed and applied the ''Proof of Concept'' (Generation 0) 4.0L V-6 DELTA engine and designed the successor ''Production Technology Demonstration'' (Generation 1) 4.0L V-6 DELTA engine. The objectives of DELTA Program contract DE-FC05-97-OR22606 were to: Demonstrate production-viable diesel engine technologies, specifically intended for the North American LDT and SUV markets; Demonstrate emissions compliance with significant fuel economy advantages. With a clean sheet design, DDC produced the DELTA engine concept promising the following attributes: 30-50% improved fuel economy; Low cost; Good durability and reliability; Acceptable noise, vibration and harshness (NVH); State-of-the-art features; Even firing, 4 valves per cylinder; High pressure common rail fuel system; Electronically controlled; Turbocharged, intercooled, cooled EGR; Extremely low emissions via CLEAN Combustion{copyright} technology. To demonstrate the engine technology in the SUV market, DDC repowered a 1999 Dodge Durango with the DELTA Generation 0 engine. Fuel economy improvements were approximately 50% better than the gasoline engine replaced in the vehicle.

  5. Final Report for DOE Project DE-FC07-99CH11010

    Energy Technology Data Exchange (ETDEWEB)

    Jed Randall; Robert Kean

    2003-10-22

    Department of Energy award number DE-FC07-99CH11010, Enhanced Utilization of Corn Based Biomaterials, supported a technology development program sponsored by Cargill Dow LLC from September 30, 1999 through June 30, 2003. The work involved fundamental scientific studies on poly lactic acid (PLA), a new environmentally benign plastic material from renewable resources. DOE funds supported academic research at the Colorado School of Mines and the National Renewable Energy Laboratory (NREL), and industry cost share was directed towards applied research into new product development utilizing the fundamental information generated by the academic partners. Under the arrangement of the grant, the fundamental information is published so that other companies can utilize it in evaluating the applicability of PLA in their own products. The overall project objective is to increase the utilization of PLA, a renewable resource based plastic, currently produced from fermented corn sugar.

  6. Biodesulfurization process evaluation with a Gordona rubropertinctus strain

    International Nuclear Information System (INIS)

    Acero, Julia; Verdugo, Claudia; Mogollon Leonardo

    2003-01-01

    Direct combustion of fossil fuels produce sulfur oxides, which are the main source of acid rain; therefore, most countries worldwide are regulating its release into the environment. As a consequence, several processes have been developed over the past years for desulfurization of crude oil and distillates. Due to its specificity, biodesulfurization is an interesting alternative for the transformation and upgrading of refined products, acting as a complement to traditional refining processes. This work presents an overview of Ecopetrol - Instituto Colombiano del Petroleo (ICP) efforts to develop a Biodesulfurization process, based on the activity of a native strain of Gordona rubropertinctus ICP172. Technical improvements on the isolation and characterization of desulfurizing microorganisms, the potential of developing new biocatalysts by means of directed evolution techniques, as well as the experience achieved during production of the biocatalyst in large-scale fermentation processes are hereby presented. The results of biodesulfurization reactions in conventional reactors and in a new membrane bioreactor prototype are also included. Finally, technological challenges faced by biodesulfurization processes are also discussed

  7. Sustaining the Productivity and Function of Intensively Managed Forests - Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Burger, James A.; Xu, Yi-Jun

    2001-03-23

    The main goal of this study is to ensure sustainable management of wetland forests in the southeastern United States. The study is projected to measure soil, hydrology, and forest responses to several management scenarios across a complete forest cycle. From August 1997 to August 2000 the study has received funding as one of the Agenda 2020 projects, from the U.S. Department of Energy (Cooperative Agreement Number DE-FC07-97ID13551), the National Council of the Paper Industry for Air and Stream Improvement, and Westvac Corporation. Quarterly progress reports were submitted regularly to the Department and all project participants. This final report summarizes the project results and progress achieved during this 3-year period. Over the past three years all research objectives planned for this project were completed.

  8. Recent developments in biodesulfurization of fossil fuels.

    Science.gov (United States)

    Xu, Ping; Feng, Jinhui; Yu, Bo; Li, Fuli; Ma, Cuiqing

    2009-01-01

    The emission of sulfur oxides can have adverse effects on the environment. Biodesulfurization of fossil fuels is attracting more and more attention because such a bioprocess is environmentally friendly. Some techniques of desulfurization have been used or studied to meet the stricter limitation on sulfur content in China. Recent advances have demonstrated the mechanism and developments for biodesulfurization of gasoline, diesel and crude oils by free cells or immobilized cells. Genetic technology was also used to improve sulfur removal efficiencies. In this review, we summarize recent progress mainly in China on petroleum biodesulfurization.

  9. Dicty_cDB: FC-AI24 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI24 (Link to dictyBase) - - - - FC-AI24Z (Link to Original site) - - FC-AI...24Z 693 - - - - Show FC-AI24 Library FC (Link to library) Clone ID FC-AI24 (Link to dictyBas...e) Atlas ID - NBRP ID - dictyBase ID - Link to Contig - Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI...24Q.Seq.d/ Representative seq. ID FC-AI24Z (Link to Original s...ite) Representative DNA sequence >FC-AI24 (FC-AI24Q) /CSM/FC/FC-AI/FC-AI24Q.Seq.d/ XXXXXXXXXXAAATTAGAAAACAAA

  10. Dicty_cDB: FC-AI08 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI08 (Link to dictyBase) - G01729 DDB0233148 Contig-U14939-1 FC-AI...08P (Link to Original site) FC-AI08F 654 FC-AI08Z 563 FC-AI08P 1217 - - Show FC-AI08 Library FC (Link... to library) Clone ID FC-AI08 (Link to dictyBase) Atlas ID - NBRP ID G01729 dictyBase ID DDB0233148 Link to ...Contig Contig-U14939-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI...08Q.Seq.d/ Representative seq. ID FC-AI08P (Link to Original site) Representative DNA sequence >FC-AI08 (FC-AI

  11. Dicty_cDB: FC-BR21 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BR21 (Link to dictyBase) - - - Contig-U15384-1 | Contig-U16443-1 FC-BR2...1P (Link to Original site) FC-BR21F 551 FC-BR21Z 122 FC-BR21P 673 - - Show FC-BR21 Library FC (L...ink to library) Clone ID FC-BR21 (Link to dictyBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Cont...ig-U15384-1 | Contig-U16443-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BR/FC-BR2...1Q.Seq.d/ Representative seq. ID FC-BR21P (Link to Original site) Representative DNA sequence >FC-BR21 (FC-BR2

  12. Dicty_cDB: FC-AI22 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI22 (Link to dictyBase) - - - Contig-U15369-1 | Contig-U15732-1 FC-AI...22P (Link to Original site) FC-AI22F 583 FC-AI22Z 683 FC-AI22P 1266 - - Show FC-AI22 Library FC (...Link to library) Clone ID FC-AI22 (Link to dictyBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Con...tig-U15369-1 | Contig-U15732-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI...22Q.Seq.d/ Representative seq. ID FC-AI22P (Link to Original site) Representative DNA sequence >FC-AI22 (FC-AI

  13. Dicty_cDB: FC-AC21 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AC21 (Link to dictyBase) - - - Contig-U15104-1 FC-AC21E (Li...nk to Original site) - - - - - - FC-AC21E 527 Show FC-AC21 Library FC (Link to library) Clone ID FC-AC21 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U15104-1 Original site URL http://dict...ce KDSLDVIIFPEMVKLVGLTPNTMEKVLTYFQDNDTIDLSTFPMEIQVEQLSGKYIFICTH KQKDQRCGYCGPILVDQLRDQIKERSLEKEIQVFGTSHVGGHKY... Frames) Frame A: KDSLDVIIFPEMVKLVGLTPNTMEKVLTYFQDNDTIDLSTFPMEIQVEQLSGKYIFICTH KQ

  14. Dicty_cDB: FC-AK01 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AK01 (Link to dictyBase) - - - Contig-U15038-1 FC-AK01E (Li...nk to Original site) - - - - - - FC-AK01E 996 Show FC-AK01 Library FC (Link to library) Clone ID FC-AK01 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U15038-1 Original site URL http://dict...s clone omyk-evn... 172 6e-79 AF401557_1( AF401557 |pid:none) Ictalurus punctatus...reticulum 4.0 %: vacuolar >> prediction for FC-AK01 is mit 5' end seq. ID - 5' end seq. - Length of 5' end s

  15. Dicty_cDB: FC-BF01 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BF01 (Link to dictyBase) - - - Contig-U15105-1 FC-BF01Z (Li...nk to Original site) - - FC-BF01Z 674 - - - - Show FC-BF01 Library FC (Link to library) Clone ID FC-BF01 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U15105-1 Original site URL http://dict...402813_1( AF402813 |pid:none) Ictalurus punctatus 40S ribosomal ... 260 3e-68 AJ783868_1( AJ783868 |pid:none...lasmic 8.0 %: mitochondrial 4.0 %: nuclear >> prediction for FC-BF01 is cyt 5' end seq. ID - 5' end seq. - L

  16. Dicty_cDB: FC-BC16 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BC16 (Link to dictyBase) - - - Contig-U15105-1 FC-BC16Z (Li...nk to Original site) - - FC-BC16Z 620 - - - - Show FC-BC16 Library FC (Link to library) Clone ID FC-BC16 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U15105-1 Original site URL http://dict...4 2e-66 AY961522_1( AY961522 |pid:none) Lysiphlebus testaceipes ribosomal ... 254 2e-66 AF402813_1( AF402813 |pid:none) Ict...hondrial 4.0 %: nuclear >> prediction for FC-BC16 is cyt 5' end seq. ID - 5' end seq. - Length of 5' end seq

  17. Dicty_cDB: FC-AY04 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AY04 (Link to dictyBase) - - - Contig-U16521-1 FC-AY04Z (Li...nk to Original site) - - FC-AY04Z 583 - - - - Show FC-AY04 Library FC (Link to library) Clone ID FC-AY04 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U16521-1 Original site URL http://dict...10 4 CA753827 |AF402814_1 ( AF402814 ) 40S ribosomal protein S6 [Ictalurus puncta...0.00 m_ : 1.00 92.0 %: cytoplasmic 4.0 %: mitochondrial 4.0 %: nuclear >> prediction for FC-AY04 is cyt 5' e

  18. Dicty_cDB: FC-IC0102 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC-IC (Link to library) FC-IC0102 (Link to dictyBase) - - - Contig-U16527-1 FC-IC01...02F (Link to Original site) FC-IC0102F 434 - - - - - - Show FC-IC0102 Library FC-IC (Link to library) Clone ...ID FC-IC0102 (Link to dictyBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U16527-1 Original site URL http://dict... (bits) Value N AB088483 |AB088483.1 Dictyostelium discoideum gene for gamete and mating-type specific prote...oducing significant alignments: (bits) Value AB088483_1( AB088483 |pid:none) Dictyostelium discoideum gmsA g

  19. Dicty_cDB: FC-BS24 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS24 (Link to dictyBase) - - - Contig-U16209-1 FC-BS24Z (Li...nk to Original site) - - FC-BS24Z 721 - - - - Show FC-BS24 Library FC (Link to library) Clone ID FC-BS24 (Link to dict...yBase) Atlas ID - NBRP ID - dictyBase ID - Link to Contig Contig-U16209-1 Original site URL http://dict...nce. 52 9e-12 4 BQ096846 |BQ096846.1 IfHdk00487 Ictalurus furcatus head kidney cDNA library Ict...N SA ;, mRNA sequence. 44 1e-10 4 BM438323 |BM438323.1 IpLvr01076 Liver cDNA library Ictalurus punctatus cDN

  20. Dicty_cDB: FC-AJ15 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AJ15 (Link to dictyBase) - G01152 DDB0232964 Contig-U16520-...to library) Clone ID FC-AJ15 (Link to dictyBase) Atlas ID - NBRP ID G01152 dictyBase ID DDB0232964 Link to C...ontig Contig-U16520-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC...KIEFPLPDIKTKRKIFEI HTAKMNLSEDVNLEEFVMSKDDLSGADIKAICTESGLLALRERRMRVTHTDFKKAKEKVL YRKTAGAPEGLYM*kkknqnqk Trans...vih*qlviwrrlsmxitpschqp*tralcpyhvfv--- ---ELLNQLDGFDASTDVKVIMATNRIETLDPALIRPGRIDRKIEFPLPDIKTKRKIFEI HTAKMNLSEDVNLEEFVMSKDDLSGADIKAICT

  1. Dicty_cDB: FC-AI04 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI04 (Link to dictyBase) - - - Contig-U15121-1 FC-AI04E (Li...nk to Original site) - - - - - - FC-AI04E 772 Show FC-AI04 Library FC (Link to library) Clone ID FC-AI04 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI04Q.Seq.d/ Representative seq. ID FC-AI...04E (Link to Original site) Representative DNA sequence >FC-AI04 (FC-AI04Q) /CSM/FC/FC-AI/FC-AI04Q.Seq....qvnkhqqvvtktvsd vlvphqvhnqvfphipqqmtlvnkhqpvvtktvsdvlvphqvhnqvfphtpqlkiqvylq vfqvvvvtiisai

  2. Dicty_cDB: FC-AI10 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI10 (Link to dictyBase) - - - Contig-U16270-1 FC-AI10F (Li...nk to Original site) FC-AI10F 405 - - - - - - Show FC-AI10 Library FC (Link to library) Clone ID FC-AI10 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI10Q.Seq.d/ Representative seq. ID FC-AI...10F (Link to Original site) Representative DNA sequence >FC-AI10 (FC-AI10Q) /CSM/FC/FC-AI/FC-AI10Q.Seq.... sequence RKKRKSDYTSFSTYIHKLLKQITPPTNAKSNEKGDRKFTISSKAMSVMNSFVHDIFDRIA TEASGLAKKKKRQTLHSRDIQVAVRIILTGELAXHAI

  3. Dicty_cDB: FC-AI23 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI23 (Link to dictyBase) - - - Contig-U15308-1 FC-AI23Z (Li...nk to Original site) - - FC-AI23Z 603 - - - - Show FC-AI23 Library FC (Link to library) Clone ID FC-AI23 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI23Q.Seq.d/ Representative seq. ID FC-AI...23Z (Link to Original site) Representative DNA sequence >FC-AI23 (FC-AI23Q) /CSM/FC/FC-AI/FC-AI23Q.Seq....LNTLAKKNEQVVEGEILAKQLTGVTAEELSEFKACFSHFDKDN DNKLNRLEFSSCLKSIGDELTEEQLNQVISKIDTDGNGTISFEEFIDYMVSSRKGTDSVE STKAAFKVMAEDKDFITEAQIRAAI

  4. Dicty_cDB: FC-AI05 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI05 (Link to dictyBase) - - - Contig-U15516-1 FC-AI05E (Li...nk to Original site) - - - - - - FC-AI05E 1189 Show FC-AI05 Library FC (Link to library) Clone ID FC-AI05 (L...//dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI05Q.Seq.d/ Representative seq. ID FC-AI...05E (Link to Original site) Representative DNA sequence >FC-AI05 (FC-AI05Q) /CSM/FC/FC-AI/FC-AI05Q.Seq...KIVGEASLKNKGKMSRVLAAKAALSARFD ALCEVSDTSYGIAYKGAVDRRAAAIEGREVRKSLNAVKPEKSGNVAKYDHTKSATTNTTR DVATKSSKESSIKQEKQ

  5. Dicty_cDB: FC-AI21 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI21 (Link to dictyBase) - - - Contig-U16254-1 FC-AI21Z (Li...nk to Original site) - - FC-AI21Z 696 - - - - Show FC-AI21 Library FC (Link to library) Clone ID FC-AI21 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI21Q.Seq.d/ Representative seq. ID FC-AI...21Z (Link to Original site) Representative DNA sequence >FC-AI21 (FC-AI21Q) /CSM/FC/FC-AI/FC-AI21Q.Seq....YPGYMYTDLSTIYERAGRIQGRNGSITQI PILTMPNDDITHPIPDLTGYITEGQIFIDRQINNRQIYPPINVLPSLSRLMKSAI

  6. 40 CFR Appendix C to Part 97 - Final Section 126 Rule: Trading Budget

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Final Section 126 Rule: Trading Budget... PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS Pt. 97, App. C Appendix C to Part 97Final Section 126 Rule: Trading Budget ST F126-EGU F126-NEGU Total DC 207 26...

  7. Dicty_cDB: FC-BS11 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS11 (Link to dictyBase) - - - Contig-U16517-1 FC-BS11Z (Li...nk to Original site) - - FC-BS11Z 683 - - - - Show FC-BS11 Library FC (Link to library) Clone ID FC-BS11 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS11Q.Seq.d/ Representative seq. ID FC-BS...11Z (Link to Original site) Representative DNA sequence >FC-BS11 (FC-BS11Q) /CSM/FC/FC-BS/FC-BS11Q.Seq....s producing significant alignments: (bits) Value FC-BS11 (FC-BS11Q) /CSM/FC/FC-BS/FC-BS

  8. Dicty_cDB: FC-AI12 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI12 (Link to dictyBase) - - - Contig-U15484-1 FC-AI12Z (Li...nk to Original site) - - FC-AI12Z 614 - - - - Show FC-AI12 Library FC (Link to library) Clone ID FC-AI12 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI12Q.Seq.d/ Representative seq. ID FC-AI...12Z (Link to Original site) Representative DNA sequence >FC-AI12 (FC-AI12Q) /CSM/FC/FC-AI/FC-AI12Q.Seq....EKIVRRI ELLDGITCYRNEKAKDEIVLTGNSLELLSQSCATIQLRSAIKYKDVRKFLDGIYVSERNV LESN*in*riys

  9. Dicty_cDB: FC-AI19 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI19 (Link to dictyBase) - - - Contig-U15115-1 FC-AI19Z (Li...nk to Original site) - - FC-AI19Z 661 - - - - Show FC-AI19 Library FC (Link to library) Clone ID FC-AI19 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI19Q.Seq.d/ Representative seq. ID FC-AI...19Z (Link to Original site) Representative DNA sequence >FC-AI19 (FC-AI19Q) /CSM/FC/FC-AI/FC-AI19Q.Seq....lmrqswvkkiesi*lvl krrkkkknnkkkkkkkkkkklfn*lvnkkn*ik*kkllcnqkk Frame B: ---*ekaieilsklfsin*kfn**ysiiigkkstkyq

  10. Dicty_cDB: FC-AI14 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI14 (Link to dictyBase) - - - Contig-U16280-1 FC-AI14Z (Li...nk to Original site) - - FC-AI14Z 671 - - - - Show FC-AI14 Library FC (Link to library) Clone ID FC-AI14 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI14Q.Seq.d/ Representative seq. ID FC-AI...14Z (Link to Original site) Representative DNA sequence >FC-AI14 (FC-AI14Q) /CSM/FC/FC-AI/FC-AI14Q.Seq....nqrllv*lvvlskklqllnsnqsfkfkkvq rmkknsvkntkn*rfvllt*nlkslkrmpksknsptkliifilkly Frame B: ---lkdl*krtphl*stcfhhptlcssrrfclwslnai

  11. Dicty_cDB: FC-AI06 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI06 (Link to dictyBase) - - - Contig-U16465-1 FC-AI06E (Li...nk to Original site) - - - - - - FC-AI06E 1138 Show FC-AI06 Library FC (Link to library) Clone ID FC-AI06 (L...//dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI06Q.Seq.d/ Representative seq. ID FC-AI...06E (Link to Original site) Representative DNA sequence >FC-AI06 (FC-AI06Q) /CSM/FC/FC-AI/FC-AI06Q.Seq...FGRGIDIERVNVVINYDMAESADTYLHRVGRAGRFGTK GLAISFVPSKEDPVLEQVQSKFVVSIKELVATPDPSTYMSG*kkkkkkkknlfvlksikk k*kkk*in

  12. Dicty_cDB: FC-AI09 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI09 (Link to dictyBase) - - - Contig-U16149-1 FC-AI09Z (Li...nk to Original site) - - FC-AI09Z 591 - - - - Show FC-AI09 Library FC (Link to library) Clone ID FC-AI09 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI09Q.Seq.d/ Representative seq. ID FC-AI...09Z (Link to Original site) Representative DNA sequence >FC-AI09 (FC-AI09Q) /CSM/FC/FC-AI/FC-AI09Q.Seq....*tkl ik*ilifykiknnkkkkkk Frame B: ---gt*kvpeflailfkrmasrsvlwy*rcltkakkglkapqtltik

  13. Dicty_cDB: FC-BS14 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS14 (Link to dictyBase) - - - Contig-U16399-1 FC-BS14E (Li...nk to Original site) - - - - - - FC-BS14E 534 Show FC-BS14 Library FC (Link to library) Clone ID FC-BS14 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS14Q.Seq.d/ Representative seq. ID FC-BS...14E (Link to Original site) Representative DNA sequence >FC-BS14 (FC-BS14Q) /CSM/FC/FC-BS/FC-BS14Q.Seq.... vs CSM-cDNA Score E Sequences producing significant alignments: (bits) Value FC-BS14 (FC-BS

  14. Dicty_cDB: FC-AI17 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI17 (Link to dictyBase) - - - Contig-U15690-1 FC-AI17P (Li...nk to Original site) FC-AI17F 587 FC-AI17Z 626 FC-AI17P 1212 - - Show FC-AI17 Library FC (Link to library) Clone ID FC-AI...nal site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI17Q.Seq.d/ Representative seq. ID FC-AI...17P (Link to Original site) Representative DNA sequence >FC-AI17 (FC-AI17Q) /CSM/FC/FC-AI/FC-AI...slated Amino Acid sequence ANIATVGDFLKADTVVPKMIITYNKRKQGTDYLKAVIGPILSNVIKQELNLELKPNLVYA AIISEQEIRTGEKSTLDRNV

  15. Dicty_cDB: FC-AI18 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI18 (Link to dictyBase) - - - Contig-U15590-1 FC-AI18P (Li...nk to Original site) FC-AI18F 621 FC-AI18Z 703 FC-AI18P 1324 - - Show FC-AI18 Library FC (Link to library) Clone ID FC-AI...nal site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI18Q.Seq.d/ Representative seq. ID FC-AI...18P (Link to Original site) Representative DNA sequence >FC-AI18 (FC-AI18Q) /CSM/FC/FC-AI/FC-AI...AVWPLIPGYERA DGEKQYPVAAMLCNFTKPTPTTPSLLTHDEVVTFFHEFGHVMHNMSTKVHYSMFSGTSVE RDFVECPSQLFEFWCWNKDVLVNKLSGHXKDHSKKLPTDLVERMIAAKNLNVAI

  16. Dicty_cDB: FC-BS10 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS10 (Link to dictyBase) - - - Contig-U16283-1 FC-BS10Z (Li...nk to Original site) - - FC-BS10Z 720 - - - - Show FC-BS10 Library FC (Link to library) Clone ID FC-BS10 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS10Q.Seq.d/ Representative seq. ID FC-BS...10Z (Link to Original site) Representative DNA sequence >FC-BS10 (FC-BS10Q) /CSM/FC/FC-BS/FC-BS10Q.Seq....E Sequences producing significant alignments: (bits) Value FC-BS10 (FC-BS10Q) /CSM/FC/FC-BS/FC-BS10Q.Seq.d/

  17. Dicty_cDB: FC-BS21 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS21 (Link to dictyBase) - - - Contig-U15764-1 FC-BS21Z (Li...nk to Original site) - - FC-BS21Z 723 - - - - Show FC-BS21 Library FC (Link to library) Clone ID FC-BS21 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS21Q.Seq.d/ Representative seq. ID FC-BS...21Z (Link to Original site) Representative DNA sequence >FC-BS21 (FC-BS21Q) /CSM/FC/FC-BS/FC-BS21Q.Seq.... Score E Sequences producing significant alignments: (bits) Value FC-BS21 (FC-BS21Q) /CSM/FC/FC-BS/FC-BS21Q.

  18. Dicty_cDB: FC-BS19 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS19 (Link to dictyBase) - - - Contig-U16583-1 FC-BS19E (Li...nk to Original site) - - - - - - FC-BS19E 604 Show FC-BS19 Library FC (Link to library) Clone ID FC-BS19 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS19Q.Seq.d/ Representative seq. ID FC-BS...19E (Link to Original site) Representative DNA sequence >FC-BS19 (FC-BS19Q) /CSM/FC/FC-BS/FC-BS19Q.Seq....E Sequences producing significant alignments: (bits) Value FC-BS19 (FC-BS19Q) /CSM/FC/FC-BS/FC-BS19Q.Seq.d/

  19. Dicty_cDB: FC-AI01 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI01 (Link to dictyBase) - - - Contig-U15592-1 FC-AI01E (Li...nk to Original site) - - - - - - FC-AI01E 307 Show FC-AI01 Library FC (Link to library) Clone ID FC-AI01 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI01Q.Seq.d/ Representative seq. ID FC-AI...01E (Link to Original site) Representative DNA sequence >FC-AI01 (FC-AI01Q) /CSM/FC/FC-AI/FC-AI01Q.Seq....uences producing significant alignments: (bits) Value FC-AI01 (FC-AI01Q) /CSM/FC/FC-AI/FC-AI01Q.Seq.d/ 68 8e

  20. Dicty_cDB: FC-AI15 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI15 (Link to dictyBase) - G01730 DDB0214993 Contig-U15123-1 FC-AI...15E (Link to Original site) - - - - - - FC-AI15E 856 Show FC-AI15 Library FC (Link to library) Clone ID FC-AI...3-1 Original site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI15Q.Se...q.d/ Representative seq. ID FC-AI15E (Link to Original site) Representative DNA sequence >FC-AI15 (FC-AI15Q) /CSM/FC/FC-AI/FC-AI...AAAAAAAATA sequence update 1996.12.24 Translated Amino Acid sequence kt*riyi*KMMIKYITIAILFIASLVKADLQFSLCPTCV

  1. Dicty_cDB: FC-AI03 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI03 (Link to dictyBase) - - - Contig-U15833-1 FC-AI03P (Li...nk to Original site) FC-AI03F 690 FC-AI03Z 651 FC-AI03P 1341 - - Show FC-AI03 Library FC (Link to library) Clone ID FC-AI...nal site URL http://dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI03Q.Seq.d/ Representative seq. ID FC-AI...03P (Link to Original site) Representative DNA sequence >FC-AI03 (FC-AI03Q) /CSM/FC/FC-AI/FC-AI...li*l*ivtlskv*qswyqvfcslmrftcwi*nv fht*ivhwsqhwhql*flqpivaiv*skapitifnlhmaslwif*ivl*sfvpfhiitmk sfkfspfvpqlki

  2. Dicty_cDB: FC-BS09 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BS09 (Link to dictyBase) - - - Contig-U16215-1 FC-BS09Z (Li...nk to Original site) - - FC-BS09Z 626 - - - - Show FC-BS09 Library FC (Link to library) Clone ID FC-BS09 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BS/FC-BS09Q.Seq.d/ Representative seq. ID FC-BS...09Z (Link to Original site) Representative DNA sequence >FC-BS09 (FC-BS09Q) /CSM/FC/FC-BS/FC-BS09Q.Seq....ignments: (bits) Value SSF360 (SSF360Q) /CSM/SS/SSF3-C/SSF360Q.Seq.d/ 854 0.0 FC-BS09 (FC-BS09Q) /CSM/FC/FC-BS/FC-BS

  3. Dicty_cDB: FC-AI13 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AI13 (Link to dictyBase) - - - Contig-U16263-1 FC-AI13F (Li...nk to Original site) FC-AI13F 507 - - - - - - Show FC-AI13 Library FC (Link to library) Clone ID FC-AI13 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-AI/FC-AI13Q.Seq.d/ Representative seq. ID FC-AI...13F (Link to Original site) Representative DNA sequence >FC-AI13 (FC-AI13Q) /CSM/FC/FC-AI/FC-AI13Q.Seq....nificant alignments: (bits) Value FC-AI13 (FC-AI13Q) /CSM/FC/FC-AI/FC-AI13Q.Seq.d/ 963 0.0 VSA730 (VSA730Q)

  4. Dicty_cDB: FC-BR23 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-BR23 (Link to dictyBase) - - - Contig-U15008-1 FC-BR23Z (Li...nk to Original site) - - FC-BR23Z 641 - - - - Show FC-BR23 Library FC (Link to library) Clone ID FC-BR23 (Li.../dictycdb.biol.tsukuba.ac.jp/CSM/FC/FC-BR/FC-BR23Q.Seq.d/ Representative seq. ID FC-BR2...3Z (Link to Original site) Representative DNA sequence >FC-BR23 (FC-BR23Q) /CSM/FC/FC-BR/FC-BR23Q.Seq....9 0.0 SLA211 (SLA211Q) /CSM/SL/SLA2-A/SLA211Q.Seq.d/ 1029 0.0 FC-BR23 (FC-BR23Q) /CSM/FC/FC-BR/FC-BR2

  5. Biodesulfurization of refractory organic sulfur compounds in fossil fuels.

    Science.gov (United States)

    Soleimani, Mehran; Bassi, Amarjeet; Margaritis, Argyrios

    2007-01-01

    The stringent new regulations to lower sulfur content in fossil fuels require new economic and efficient methods for desulfurization of recalcitrant organic sulfur. Hydrodesulfurization of such compounds is very costly and requires high operating temperature and pressure. Biodesulfurization is a non-invasive approach that can specifically remove sulfur from refractory hydrocarbons under mild conditions and it can be potentially used in industrial desulfurization. Intensive research has been conducted in microbiology and molecular biology of the competent strains to increase their desulfurization activity; however, even the highest activity obtained is still insufficient to fulfill the industrial requirements. To improve the biodesulfurization efficiency, more work is needed in areas such as increasing specific desulfurization activity, hydrocarbon phase tolerance, sulfur removal at higher temperature, and isolating new strains for desulfurizing a broader range of sulfur compounds. This article comprehensively reviews and discusses key issues, advances and challenges for a competitive biodesulfurization process.

  6. NERI FINAL TECHNICAL REPORT, DE-FC07-O5ID14647. OPTIMIZATION OF OXIDE COMPOUNDS FOR ADVANCED INERT MATRIX MATERIALS

    International Nuclear Information System (INIS)

    Nino, Juan C.

    2009-01-01

    In order to reduce the current excesses of plutonium (both weapon grade and reactor grade) and other transuranium elements, a concept of inert matrix fuel (IMF) has been proposed for an uranium free transmutation of fissile actinides which excludes continuous uranium-plutonium conversion in thermal reactors and advanced systems. Magnesium oxide (MgO) is a promising candidate for inert matrix (IM) materials due to its high melting point (2827 C), high thermal conductivity (13 W/K · m at 1000 C), good neutronic properties, and irradiation stability However, MgO reacts with water and hydrates easily, which prevents it from being used in light water reactors (LWRs) as an IM. To improve the hydration resistance of MgO-based inert matrix materials, Medvedev and coworkers have recently investigated the introduction of a secondary phase that acts as a hydration barrier. An MgO-ZrO 2 composite was specifically studied and the results showed that the composite exhibited improved hydration resistance than pure MgO. However, ZrO 2 is insoluble in most acids except HF, which is undesirable for fuel reprocessing. Moreover, the thermal conductivity of ZrO 2 is low and typically less than 3 W · m -1 · K -1 at 1000 C. In search for an alternative composite strategy, Nd 2 Zr 2 O 7 , an oxide compound with pyrochlore structure, has been proposed recently as a corrosion resistant phase, and MgO-Nd 2 Zr 2 O 7 composites have been investigated as potential IM materials. An adequate thermal conductivity of 6 W · m - 1 · K -1 at 1000 C for the MgO-Nd 2 Zr 2 O 7 composite with 90 vol% MgO was recently calculated and reported. Other simulations proposed that the MgO-pyrochlore composites could exhibit higher radiation stability than previously reported. Final optimization of the composite microstructure was performed on the 70 vol% MgO-Nd 2 Zr 2 O 7 composite that burnup calculations had shown to have the closest profile to that of MOX fuel. Theoretical calculations also indicated that

  7. NERI FINAL TECHNICAL REPORT, DE-FC07-O5ID14647, OPTIMIZATION OF OXIDE COMPOUNDS FOR ADVANCED INERT MATRIX MATERIALS

    Energy Technology Data Exchange (ETDEWEB)

    PI: JUAN C. NINO, ASSOCIATE PROFESSOR

    2009-01-11

    In order to reduce the current excesses of plutonium (both weapon grade and reactor grade) and other transuranium elements, a concept of inert matrix fuel (IMF) has been proposed for an uranium free transmutation of fissile actinides which excludes continuous uranium-plutonium conversion in thermal reactors and advanced systems. Magnesium oxide (MgO) is a promising candidate for inert matrix (IM) materials due to its high melting point (2827 C), high thermal conductivity (13 W/K {center_dot} m at 1000 C), good neutronic properties, and irradiation stability However, MgO reacts with water and hydrates easily, which prevents it from being used in light water reactors (LWRs) as an IM. To improve the hydration resistance of MgO-based inert matrix materials, Medvedev and coworkers have recently investigated the introduction of a secondary phase that acts as a hydration barrier. An MgO-ZrO{sub 2} composite was specifically studied and the results showed that the composite exhibited improved hydration resistance than pure MgO. However, ZrO{sub 2} is insoluble in most acids except HF, which is undesirable for fuel reprocessing. Moreover, the thermal conductivity of ZrO{sub 2} is low and typically less than 3 W {center_dot} m{sup -1} {center_dot} K{sup -1} at 1000 C. In search for an alternative composite strategy, Nd{sub 2}Zr{sub 2}O{sub 7}, an oxide compound with pyrochlore structure, has been proposed recently as a corrosion resistant phase, and MgO-Nd{sub 2}Zr{sub 2}O{sub 7} composites have been investigated as potential IM materials. An adequate thermal conductivity of 6 W {center_dot} m{sup -} 1 {center_dot} K{sup -1} at 1000 C for the MgO-Nd{sub 2}Zr{sub 2}O{sub 7} composite with 90 vol% MgO was recently calculated and reported. Other simulations proposed that the MgO-pyrochlore composites could exhibit higher radiation stability than previously reported. Final optimization of the composite microstructure was performed on the 70 vol% MgO-Nd{sub 2}Zr{sub 2}O{sub 7

  8. Biodesulfurization of vanadium-bearing titanomagnetite concentrates and pH control of bioleaching solution

    Science.gov (United States)

    Liu, Xiao-rong; Jiang, Sheng-cai; Liu, Yan-jun; Li, Hui; Wang, Hua-jun

    2013-10-01

    Vanadium-bearing titanomagnetite concentrates were desulfurized with Acidithiobacillus ferrooxidans ( A. ferrooxidans). The sulfur content of the concentrates was reduced from 0.69wt% to 0.14wt% after bioleaching for 15 d with a 10% pulp density at 30°C. Maintaining a stable pH value during biodesulfurization was critical because of high acid consumption, resulting from a combination of nonoxidative and oxidative dissolution of pyrrhotite in acid solution. It is discovered that the citric acid-disodium hydrogen phosphate buffer of pH 2.0 can control the solution pH value smoothly in the optimal range of 2.0-3.0 for A. ferrooxidans growth. Using the buffer in the volume fraction range of 5.0%-15.0% stimulates A. ferrooxidans growth and improves the biodesulfurization efficiency. Compared with the buffer-free control case, the maximum increase of biodesulfurization rate is 29.7% using a 10.0vol% buffer. Bioleaching provides an alternative process for desulfurization of vanadium-bearing titanomagnetite ores.

  9. Advanced power conversion based on the Aerocapacitor{trademark}. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Roark, D.

    1997-03-05

    This report summarizes work performed under contract No. DE-FC07-94ID13283, {open_quotes}Advanced Power Conversion Based on the Aerocapacitors{trademark}.{close_quotes} Under this contract high power density, high energy density, organic electrolyte Aerocapacitors{trademark} were developed and characterized for power conversion applications. Pilot facilities for manufacturing prototype AA-size Aerocapacitors{trademark} were put in place. The low ESR and good frequency response of these devices show that they are ideal components for high discharge rate and low to moderate frequency (< 10 kHz) applications such as power conversion.

  10. Esta palavra socialismo... Idéias socialistas no Brasil no final do século XIX

    OpenAIRE

    LEONIDIO, ADALMIR

    2012-01-01

    Por meio de uma análise do sentido variado que a palavra socialismo assumiu no Brasil no final do século XLX, este artigo busca ressaltar o estatuto das idéias socialistas no período: um misto de progressismo liberal, socialismo utópico e positivismo. Para tanto, baseia-se em artigos de importantes jornais, como Echo Popular, Gaveta Operária, Vo^do Povo, entre outros.

  11. Dicty_cDB: FC-AA02 [Dicty_cDB

    Lifescience Database Archive (English)

    Full Text Available FC (Link to library) FC-AA02 (Link to dictyBase) - - - Contig-U16527-1 FC-AA02Z (Li...nk to Original site) - - FC-AA02Z 458 - - - - Show FC-AA02 Library FC (Link to library) Clone ID FC-AA02 (Link to dic...linum small subunit ribosomal RNA gene, partial sequence. 149 2e-47 2 AY179984 |AY179984.1 Uncultured alveo... CP000930_2283( CP000930 |pid:none) Heliobacterium modesticaldum Ic... 33 2.3 AP009386_1894( AP009386 |pid:none) Burkholderia multi... EU955514 |pid:none) Zea mays clone 1535262 hypothetica... 50 2e-05 BA000023_1285

  12. Microbial hydrogenogenic CO conversions: applications in synthesis gas purification and biodesulfurization

    NARCIS (Netherlands)

    Sipma, J.

    2006-01-01

    Hydrogen gas attracts great interest as a potential clean future fuel and it is an excellent electron donor in biotechnological reductive processes, e.g. in biodesulfurization. Bulk production of H 2 relies on the conversion of organic matter into synthesis gas, a mixture of H

  13. Biodesulfurization and the upgrading of petroleum distillates.

    Science.gov (United States)

    Monticello, D J

    2000-12-01

    Biotechnology offers an alternative way to process fossil fuels. There have been several important advances in the elucidation of the mechanisms of biodesulfurization and the development of a biocatalytic desulfurization process. These include a detailed analysis of the rate and extent of desulfurization of real target molecules in a diesel matrix, the directed evolution of rate- and extent-limiting enzymes for better performance and the expression of the genes in alternative hosts. Process innovations include new reactor designs, separations and recovery strategies and the production of value-added byproducts during desulfurization.

  14. The Role of Bullfighting and FC Barcelona in the Emancipation of Catalonia from Spain (El papel de la corrida de toros y FC Barcelona en la emancipación de Cataluña de España

    Directory of Open Access Journals (Sweden)

    John A. TKac

    2015-06-01

    Full Text Available Abstract: This paper looks at the role that bullfighting and FC Barcelona have played in the growing independence movement in Catalonia. This article will discuss nations, the importance of bullfighting and soccer to Iberian cultures, Catalan political parties and their role in the nationalist movement, the vote to prohibit bullfighting and FC Barcelona´s increasing political conscious. I conclude that bullfighting and soccer have been used by political parties and those associated with the nationalist movement to foster feelings of difference with Spain. These feelings have been passed from the top down to the Catalan people and risk alienating those who are not in agreement with the nationalist movement.Resumen: Este trabajo examina el papel que la corrida de toros y el equipo de fútbol FC Barcelona han hecho en el movimiento continuo hacia la independencia en Cataluña. Discute el concepto de la nación, la importancia de las corridas y el fútbol en culturas ibéricas, partidos políticos catalanes y su rol en el voto a favor de la prohibición de las corridas en Cataluña y la evolución de la conciencia política cada vez más evidente de FC Barcelona. Concluyo que los partidos políticos y otros asociados con el movimiento hacia la independencia se han aprovechado de las corridas y el fútbol para destacar diferencias culturales con España. Esta actitud de diferencia se ha trasladado de arriba-abajo al pueblo catalán y el movimiento nacionalista corre el riesgo de alienar a los que no comparten sus creencias.

  15. Análisis de la colaboración entre las empresas biotecnológicas españolas con actividades de I+D y el sistema público de I+D

    Directory of Open Access Journals (Sweden)

    García-Carpintero, Esther

    2014-06-01

    Full Text Available The development and improvement of cooperation between the industrial sector and the public R&D system can produce competitive advantages for the companies. The present work describes experiences and perceptions of Spanish biotechnology companies in their collaboration with the public R&D system. Results show that almost all the biotechnological companies with R&D activities (93.6% have cooperated with the public R&D system. The main barriers found by the companies are the excess of bureaucracy and the slow response of public researchers. Results obtained also suggest the need to establish public policies and programmes to promote knowledge and technology transfer from public research centres to companies, with a special focus on encouraging researchers from the public R&D system and on improving how Technology Transfer Offices work.El desarrollo y la mejora de la cooperación entre el sector productivo y el sistema público de I+D puede generar un conjunto de ventajas competitivas para estas empresas. El presente trabajo describe las experiencias y percepciones de las empresas biotecnológicas españolas en su colaboración con el sistema público de I+D. Los resultados muestran que prácticamente la totalidad de empresas biotecnológicas españolas con actividades de I+D (un 93,6% han mantenido algún tipo de colaboración con el sistema público de I+D. Los principales obstáculos percibidos por estas empresas en su colaboración con el sistema público de I+D son el exceso de burocracia y la respuesta lenta de los investigadores. Los resultados obtenidos sugieren la conveniencia de establecer políticas y programas públicos para fomentar la transferencia de conocimiento y tecnología desde el sistema público de I+D a las empresas, fundamentalmente centrados en la necesidad de incentivar a los investigadores del sistema público de I+D y mejorar el funcionamiento de las Oficinas de Transferencia de Tecnología.

  16. PROYECTOS DE I+D, CARACTERIZACIÓN DEL TIPO DE INVESTIGACIÓN Y EL ROL DE GERENTE DE PROYECTOS

    Directory of Open Access Journals (Sweden)

    Aníbal N. Cassanelli

    2014-12-01

    Full Text Available En este artículo se pone de manifiesto la importancia del sector de la I+D y su organización fuertemente proyectizada que la convierte en un área clave para la aplicación de metodologías de gestión de proyectos. Se analizan los modelos de procesos de la I+D para proponer un esquema basado en dominios interrelacionados que permite dar pie a la identificación y caracterización de la investigación básica, aplicada, desarrollo e innovación. A partir de ahí, se comparan las competencias entre el gestor de proyectos general y los investigadores principales (gestores de proyectos de I+D de facto. Se concluye que existe una gran diferencia entre conocimientos y competencias requeridos para la gestión. Se muestran las dos tendencias que existen en el sector de I+D y la propuesta de separación del roles y la creación de una nueva figura distintiva del investigador principal que se ocupe de la gestión de proyectos.

  17. Final PHP bench-scale report for the DOE-ID/SAIC sole source contract

    International Nuclear Information System (INIS)

    1997-04-01

    The Plasma Hearth Process (PHP) Technology Development Project was established to develop, test, and evaluate a new concept for treating mixed waste. The new concept uses direct current (dc) transferred-arc plasma torch technology to process mixed waste into a glass-like end-product. Under the cognizance of the US Department of Energy (DOE) Office of Technology Development (OTD) Mixed Waste Focus Area (MWFA), the technology is being explored for its potential to treat mixed waste. Because it is a mature technology, well-understood and commercially available, it is expected to develop rapidly in this new application. This report summarizes the radioactive bench-scale system activities funded under PHP Sole Source Contract DE-AC07-94ID13266 through the end of the contract

  18. 40 CFR Table 25 to Subpart G of... - Effective Column Diameter (Fc)

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 9 2010-07-01 2010-07-01 false Effective Column Diameter (Fc) 25 Table..., Table 25 Table 25 to Subpart G of Part 63—Effective Column Diameter (Fc) Column type Fc (feet) 9-inch by 7-inch built-up columns 1.1 8-inch-diameter pipe columns 0.7 No construction details known 1.0 ...

  19. Le traitement de l’idéologie dans la sociologie de Luc Boltanski

    Directory of Open Access Journals (Sweden)

    David Vrydaghs

    2006-10-01

    Full Text Available IntroductionLe concept d’idéologie apparaît dans la sociologie de Luc Boltanski à partir du Nouvel Esprit du capitalisme, publié en 1999. L’auteur y revient dans La Condition fœtale, paru en 2004. On aurait donc pu se contenter de ces ouvrages pour examiner le traitement réservé à l’idéologie dans la sociologie de Luc Boltanski. On préférera pourtant revenir aux travaux antérieurs du sociologue, et ce pour deux raisons.D’abord parce que le concept d’idéologie tel qu’il est employé dans Le Nou...

  20. Comparison Analysis of Coal Biodesulfurization and Coal's Pyrite Bioleaching with Acidithiobacillus ferrooxidans

    Science.gov (United States)

    Hong, Fen-Fen; He, Huan; Liu, Jin-Yan; Tao, Xiu-Xiang; Zheng, Lei; Zhao, Yi-Dong

    2013-01-01

    Acidithiobacillus ferrooxidans (A. ferrooxidans) was applied in coal biodesulfurization and coal's pyrite bioleaching. The result showed that A. ferrooxidans had significantly promoted the biodesulfurization of coal and bioleaching of coal's pyrite. After 16 days of processing, the total sulfur removal rate of coal was 50.6%, and among them the removal of pyritic sulfur was up to 69.9%. On the contrary, after 12 days of processing, the coal's pyrite bioleaching rate was 72.0%. SEM micrographs showed that the major pyrite forms in coal were massive and veinlets. It seems that the bacteria took priority to remove the massive pyrite. The sulfur relative contents analysis from XANES showed that the elemental sulfur (28.32%) and jarosite (18.99%) were accumulated in the biotreated residual coal. However, XRD and XANES spectra of residual pyrite indicated that the sulfur components were mainly composed of pyrite (49.34%) and elemental sulfur (50.72%) but no other sulfur contents were detected. Based on the present results, we speculated that the pyrite forms in coal might affect sulfur biooxidation process. PMID:24288464

  1. Le point de vue de la philosophie: L'entreprise idéologique

    OpenAIRE

    Pesqueux , Yvon

    2004-01-01

    Parler de l'entreprise conduit à questionner ce qui fonde le discours – scientifique ou médiatique – qui permette d'en parler. Et c'est bien en cela qu'il est nécessaire d'approfondir l'univers de l'idéologie et de la croyance qui est celui dans lequel modèle, image, métaphore et figure de l'entreprise plongent leurs racines dans la mesure où l'usage de ces notions, quand on les applique à l'entreprise, conduit à créer un monde qui soit cohérent avec ce qu'ils portent en eux. L'idéologie comm...

  2. Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans

    Directory of Open Access Journals (Sweden)

    Fen-Fen Hong

    2013-01-01

    Full Text Available Acidithiobacillus ferrooxidans (A. ferrooxidans was applied in coal biodesulfurization and coal’s pyrite bioleaching. The result showed that A. ferrooxidans had significantly promoted the biodesulfurization of coal and bioleaching of coal’s pyrite. After 16 days of processing, the total sulfur removal rate of coal was 50.6%, and among them the removal of pyritic sulfur was up to 69.9%. On the contrary, after 12 days of processing, the coal’s pyrite bioleaching rate was 72.0%. SEM micrographs showed that the major pyrite forms in coal were massive and veinlets. It seems that the bacteria took priority to remove the massive pyrite. The sulfur relative contents analysis from XANES showed that the elemental sulfur (28.32% and jarosite (18.99% were accumulated in the biotreated residual coal. However, XRD and XANES spectra of residual pyrite indicated that the sulfur components were mainly composed of pyrite (49.34% and elemental sulfur (50.72% but no other sulfur contents were detected. Based on the present results, we speculated that the pyrite forms in coal might affect sulfur biooxidation process.

  3. Biodesulfurization of Petroleum Distillates—Current Status, Opportunities and Future Challenges

    Directory of Open Access Journals (Sweden)

    Olawumi O. Sadare

    2017-11-01

    Full Text Available Sulfur oxide (SO2 and hydrogen sulfide (H2S are considered as one of the major air pollutants in the world today. In addition, high sulfur levels in petroleum distillates can promote the deactivation of catalysts through poisoning in fluidized catalytic cracking (FCC during hydrocracking of the heavy distillates to lighter ones. The presence of high sulfur-containing compounds in the process streams could cause corrosion of piping and fittings and equipment, thereby damaging the pipelines and leading to air emissions of sulfur-containing compounds, which are undesirable for mankind and his environment. In many cases, a large quantity of SOx is released into the atmosphere when petroleum distillates that contain substantial amount of sulphur-containing compounds are used as fuel and combust. In this article, a short overview of different desulfurization methods that are employed to remove sulfur from petroleum distillates is provided. In particular, the review concentrates on biodesulfurization technique. In addition, this article intends to provide its readers current status of biodesulfurization (BDS. It critically analyses the trend in the development of the technology to showcase its strength and weakness that could pave a way for future opportunities. Approaches that are suitable to remediate sulfur-contaminated environment are discussed as well. Lastly, speculations on future directions or opportunities that require exploration are provided as a way of provoking the thoughts of researchers in this field.

  4. Final Report - Advanced Cathode Catalysts and Supports for PEM Fuel Cells

    Energy Technology Data Exchange (ETDEWEB)

    Debe, Mark

    2012-09-28

    The principal objectives of the program were development of a durable, low cost, high performance cathode electrode (catalyst and support), that is fully integrated into a fuel cell membrane electrode assembly with gas diffusion media, fabricated by high volume capable processes, and is able to meet or exceed the 2015 DOE targets. Work completed in this contract was an extension of the developments under three preceding cooperative agreements/grants Nos. DE-FC-02-97EE50473, DE-FC-99EE50582 and DE-FC36- 02AL67621 which investigated catalyzed membrane electrode assemblies for PEM fuel cells based on a fundamentally new, nanostructured thin film catalyst and support system, and demonstrated the feasibility for high volume manufacturability.

  5. ID.alistic: identificatie met een touch voor de patiënt

    NARCIS (Netherlands)

    M. Wilschut; M. Zijlmans; Dr. L.S.G.L Wauben

    2017-01-01

    ID.alistic is een conceptuele patiëntidentificatie methode (middels een vingerafdrukscanner), ter vervanging van het polsbandjessysteem van het Albert Schweitzer ziekenhuis (ASz) dialysecentrum. Dit onderzoek bepaalt de implementeerbaarheid van ID.alistic binnen het dialysecentrum door

  6. Substratos renováveis na produção de mudas de Ficus enormis proveniente de jardim clonal

    Directory of Open Access Journals (Sweden)

    Rosimeri de Oliveira Fragoso

    2017-01-01

    Full Text Available Objetivou-se avaliar substratos renováveis à base de casca de arroz carbonizada (CAC e fibra de coco (FC sobre o enraizamento e qualidade final de mudas de Ficus enormis Mart. ex Miq. via estaquia caulinar de plantas provenientes de jardim clonal. Foram avaliados seis substratos: comercial (controle, composto por casca de arroz carbonizada (CAC, fibra de coco (FC e vermiculita (S1; 100% FC (S2; 100% CAC (S3; 50% FC e 50% CAC (S4; 30% (FC e 70% CAC (S5; 70% FC e 30% CAC (S6. O substrato comercial (S1 e as composições com maior proporção de FC apresentam qualificação superior para a produção de mudas de F. enormis.

  7. Generation and Characterization of an IgG4 Monomeric Fc Platform.

    Directory of Open Access Journals (Sweden)

    Lu Shan

    Full Text Available The immunoglobulin Fc region is a homodimer consisted of two sets of CH2 and CH3 domains and has been exploited to generate two-arm protein fusions with high expression yields, simplified purification processes and extended serum half-life. However, attempts to generate one-arm fusion proteins with monomeric Fc, with one set of CH2 and CH3 domains, are often plagued with challenges such as weakened binding to FcRn or partial monomer formation. Here, we demonstrate the generation of a stable IgG4 Fc monomer with a unique combination of mutations at the CH3-CH3 interface using rational design combined with in vitro evolution methodologies. In addition to size-exclusion chromatography and analytical ultracentrifugation, we used multi-angle light scattering (MALS to show that the engineered Fc monomer exhibits excellent monodispersity. Furthermore, crystal structure analysis (PDB ID: 5HVW reveals monomeric properties supported by disrupted interactions at the CH3-CH3 interface. Monomeric Fc fusions with Fab or scFv achieved FcRn binding and serum half-life comparable to wildtype IgG. These results demonstrate that this monomeric IgG4 Fc is a promising therapeutic platform to extend the serum half-life of proteins in a monovalent format.

  8. Molecular biological enhancement of coal biodesulfurization. [Rhodococcus rhodochrous

    Energy Technology Data Exchange (ETDEWEB)

    Kilbane, J.J.; Bielaga, B.A.

    1990-07-01

    The overall objective of this project is to sue molecular genetics to develop strains of bacteria with enhanced ability to remove sulfur from coal and to obtain data that will allow the performance and economics of a coal biodesulfurization process to be predicted. The work planned for the current quarter (May 1990 to July 1990) includes the following activities: (1) Construct a cloning vector that can be used in Rhodococcus rhodochrous IGTS8 from the small cryptic plasmid found in Rhodococcus rhodochrous ATCC 190607; (2) Develop techniques for the genetic analysis of IGTS8; (3) Continue biochemical experiments, particularly those that may allow the identification of desulfurization-related enzymes; (4) Continue experiments with coal to determine the kinetics of organic sulfur removal.

  9. Théorie de la justice et idéologie : Hume et Rawls

    Directory of Open Access Journals (Sweden)

    Eléonore Le Jallé

    2008-04-01

    Full Text Available Les points d’accord entre Rawls et Hume vont au-delà du seul repérage des « circonstances de la justice ». Même si Hume se trouve attaché à la théorie utilitariste de l’impartialité que Rawls rejette, Hume n’est pas, selon Rawls, « à proprement parler » utilitariste : il a su reconnaître l’idée selon laquelle les institutions doivent fonctionner dans l’intérêt de chacun. L’idée d’une coopération sociale en vue de l’avantage mutuel est donc commune à ces deux auteurs. Ils partagent, en outre, une attitude similaire face au « problème de la confiance » en lien avec la stabilité de la justice : l’un et l’autre ajoutent ainsi à la solution extérieure qu’est l’institution étatique, un facteur intrinsèque de stabilité, à savoir, le sens de la justice. L’idée de « justice procédurale » et le rejet, corrélatif, d’un critère indépendant du juste, les relie également ; d’où, enfin, une certaine analogie des critiques respectivement adressées à ces deux auteurs.The specification of the “circumstances of justice” is not the only point on which Rawls agrees with Hume. If Rawls rejects the utilitarian theory of impartiality which is “reminiscent of Hume”, he does not consider him as “strictly speaking utilitarian”. Indeed, Rawls thinks that Hume has well understood that institutions have to be to the advantage of everyone. Besides, Hume and Rawls agree in thinking that the stability of justice involves a public sense of justice. Finally, the idea of “pure procedural justice” is shared by these authors: both have rejected any independent criterion for the right result, so that the ways they were criticized are rather similar.

  10. El rendimiento en el fútbol. Una modelización de las variables determinantes para el F.C. Barcelona

    Directory of Open Access Journals (Sweden)

    Carlos Lago Peñas

    2007-12-01

    Full Text Available El objetivo del presente trabajo es explicar las variables que determinan el rendimiento que alcanza el F.C. Barcelona a lo largo de un partido de fútbol. Para ello se han analizado los 38 partidos disputados por el F.C. Barcelona en la Primera División de la Liga Española de Fútbol de la temporada 2004-2005. La variable que mide el rendimiento es la diferencia entre los lanzamientos a favor y los lanzamientos en contra en cada partido. Las variables explicativas que se manejan son: jugar en casa o fuera, posesión del balón, llegadas al área y equipo rival como determinantes del rendimiento. Los resultados de los análisis de regresión lineal permiten explicar el 68 % de la varianza del rendimiento. El segundo objetivo es valorar la homogeneidad del modelo anterior dependiendo del Episodio de Juego que caracteriza al partido en cada momento, esto es, si el F.C. Barcelona tiene la iniciativa o está a la expectativa en el juego. Los resultados indican que cuando el F.C. Barcelona tiene la iniciativa en el partido tiene un rendimiento mejor que cuando se encuentra a la expectativa y que las variables explicativas analizadas tienen diferente importancia bajo estos escenarios de competición.

  11. Influencia de la concentración de hierro y pH iniciales en un proceso de biodesulfurización de carbón – ensayos a nivel de laboratorio

    Directory of Open Access Journals (Sweden)

    Gerardo Andrés Caicedo Pineda

    2011-07-01

    Full Text Available Título en ingles: Particle size, iron concentration and pH influence in biodesulfurization process of coal – laboratory tests   Resumen   A un carbón proveniente del municipio de Puerto Libertador, Córdoba-Colombia (2.34% de azufre total, con 1.34% pirítico, 0.90% orgánico y 0.10% de sulfatos, se le aplicó un cultivo mixto de Acidithiobacillus ferrooxidans y Acidithiobacillus thiooxidans, con el fin de evaluar procesos de biodesulfurización en suspensión, a partir de variables que influyen en el proceso: concentración inicial de hierro y pH de la solución lixiviante, bajo dos configuraciones de tamaño de partícula: pasante malla 8 (-malla 8 y pasante malla 60 (-malla 60, acorde con la serie Tyler de tamices. Los procesos de biodesulfurización se evaluaron cada dos días, mediante mediciones de la concentración de hierro, pH, potencial de óxido-reducción y crecimiento celular, en la solución. A partir de los ensayos realizados, se alcanzaron oxidaciones de azufre pirítico por encima del 50%, después de 12 días de proceso. Se pudo constatar que tanto el tipo de carbón tratado, como de las condiciones evaluadas, inciden en el grado de lixiviación alcanzado. La mejor eficiencia del proceso se observó al utilizar concentraciones de hierro iniciales menores a 1200 ppm y un pH inicial entre 1.5 y 1.3.   Palabras clave: Acidithiobacillus, biodesulfurización, carbón, hierro removido, pirita.   Abstract   Biodesulfurization process for Colombian coal (2.34% total sulfur: 1.34% as pyritic, 0.90% as organic and 0.10% from sulfates from municipality of Puerto Libertador (Córdoba, Colombia was carried out. A mixed culture of A. ferrooxidans and A. thiooxidans was used. The study was mainly focused on the influence of pH, and iron concentration in coal leaching process. Two mineral particle sizes were evaluated: less 8 mesh (-malla 8 and less 60 mesh (-malla 60, Tyler series. Biodesulfurization processes were determined by

  12. Production and characterization of Talf1 yeast invertases and further application to biodesulfurization

    OpenAIRE

    Arez, B. F.; Alves, Luís Manuel; Paixão, Susana M.

    2013-01-01

    Combustion of fossil fuels generates emissions of numerous toxic gases which in later years have become a major concern internationally. One of the most concerning problems is sulfur and sulfur dioxide, and maximum levels have been established through the years. Biodesulfurization (BDS) could be a complementary technology to the commonly used physico-chemical process. BDS is based on the use of microorganisms for the removal of sulfur even from the most recalcitrant compounds at atmospher...

  13. 10 CFR 51.97 - Final environmental impact statement-materials license.

    Science.gov (United States)

    2010-01-01

    ... 10 Energy 2 2010-01-01 2010-01-01 false Final environmental impact statement-materials license. 51...-Regulations Implementing Section 102(2) Final Environmental Impact Statements-Materials Licenses § 51.97 Final environmental impact statement—materials license. (a) Independent spent fuel storage installation (ISFSI...

  14. DIFERENTES MODELOS DE REGRESIÓN PARA DESCRIBIR LA RELACIÓN V.O2-FC Y PARA ESTIMAR EL V.O2 A DIFERENTES INTENSIDADES DE ESFUERZO

    Directory of Open Access Journals (Sweden)

    Nuria Garatachea Vallejo

    2005-01-01

    Full Text Available Muchos son los estudios que demuestran el potencial de la frecuencia cardiaca (FC para estimar el coste energético de una actividad física, ya que se relaciona directamente con el consumo de oxígeno (V. O2. La mayoría de estudios describen la relación V. O2- FC como lineal para un amplio rango de esfuerzo, exceptuando los valores de reposo aunque se han propuesto diferentes funciones matemáticas continuas no lineales sin existir todavía un acuerdo en la ecuación más apropiada. También existen estudios que apuntan un cambio en la relación V. O2-FC en función de la intensidad del esfuerzo. Nuestro objetivo fue determinar cuál es la mejor función matemática que describe la relación entre la FC y el V. O2 y decidir cuál es la mejor función matemática para estimar el V. O2 a diferentes intensidades de esfuerzo. Participaron 14 sujetos que realizaron una prueba de esfuerzo máxima sobre cicloergómetro y una prueba que consistía en pedalear a 5 intensidades de esfuerzo (40, 50, 60, 70 y 80% del V. O2max durante 3 minutos. Durante ambas pruebas se midió V. O2 y frecuencia cardiaca. El modelo lineal y potencial fueron los modelos matemáticos más exactos para describir la relación V. O2-FC. El mayor error de estimación se produjo a bajas intensidades de esfuerzo. En conclusión, la elección de un tipo u otro de regresión influye en la exactitud del método de monitorización de la frecuencia cardiaca.

  15. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    DeTar, Carleton [P.I.

    2012-12-10

    This document constitutes the Final Report for award DE-FC02-06ER41446 as required by the Office of Science. It summarizes accomplishments and provides copies of scientific publications with significant contribution from this award.

  16. Trasplante renal con HLA idéntico de donante vivo y cadavérico: experiencia de la Fundación Valle de Lili, Cali, Colombia

    OpenAIRE

    Caicedo, Luis Armando; Gómez-Vega, Juan Carlos; Duque, Mauricio Francisco; Serrano, Óscar Javier; Manzi, Eliana; Arrunátegui, Ana María; Posada, Juan Guillermo; Mesa, Liliana; Schweineberg, Johanna; Durán, Carlos Eduardo; Villegas, Jorge Iván; Dávalos, Diana María; Echeverri, Gabriel Jaime

    2016-01-01

    Introducción: En el trasplante renal con HLA idéntico los episodios de rechazo agudo son menores y tienen mejores tasas de supervivencia del injerto, comparado con los receptores con HLA no idéntico; a pesar de esto, persiste el dilema en cuanto al retiro o la disminución de la dosis de inmunosupresión. El objetivo de este trabajo es describir la experiencia de los trasplantes renales con HLA idéntico de donante vivo y cadavérico que se han realizado en la Fundación Valle del Lili desde 1995 ...

  17. Apuntes sobre el tesoro del bronce final llamado de Valdeobispo

    Directory of Open Access Journals (Sweden)

    Enríquez Navascues, Juan Javier

    1991-12-01

    Full Text Available The Valdeobispo hoard (Cáceres, Extremadura consists of one necklace and four sol id gold-bracclcts, whose typology is rclatcd to thc final Bronze Age goldwork characterizcd by the influence of Atlantic metallurgy. The most intcresting piece is the necklace, which is very similar to the ones from the Berzocana and Baiocs' hoards.

    El tesorillo que se ha denominado de Valdeobispo (Cáceres, Extremadura está constituido por un collar y cuatro brazaletes de oro macizo, cuya tipología lo relaciona con la orfebrería del Bronce final caracterizada por el influjo de las corrientes metalúrgicas atlánticas. La pieza más interesante es el collar, muy parecido a los de los tesoros de Berzocana y Baioes.

  18. Final Scientific/Technical Report for award DE-FC--07-00AL67053

    International Nuclear Information System (INIS)

    Dixon, Cathy

    2005-01-01

    The project ''Creating an Educational Consortium to Support the Recruitment and Retention of Expertise for the Nuclear Weapons Complex'' was also known as the Advanced Fuel Cycle Initiative (AFCI) University Fellowship Program. Since its inception, the Advanced Fuel Cycle Initiative program and its predecessor, the Advanced Accelerator Applications (AAA) program, have engaged university researchers and students in the sciences necessary to answer technical questions related to reducing high-level waste volumes, optimizing the economics and performance of Yucca Mountain, reducing the technical need for a second repository, reducing the long-term inventories of plutonium in spent fuel, and enabling the proliferation-resistant recovery of the energy contained in spent fuel. The Advanced Fuel Cycle University Fellowship Program is intended to support top students across the nation in a variety of disciplines that will be required to support transmutation research and technology development in the coming decades

  19. SISTEMA DE MEMORIA ORGANIZACIONAL PARA CENTROS I+D DE UNA INSTITUCIÓN DE EDUCACIÓN SUPERIOR

    Directory of Open Access Journals (Sweden)

    Ruth Reátegui

    2015-01-01

    Full Text Available El objetivo del artículo es proponer un modelo de Sistemas de Memoria Organizacional (SMO para un centro de Investigación y Desarrollo (I+D basado en cuatro componentes: social, cultural, tecnológico y de procesos para una IES de Ecuador. Las instituciones de educación superior (IES son organizaciones donde la investigación es una de sus actividades fundamentales que requiere una adecuada gestión del conocimiento. Para esta propuesta se utilizó un método de investigación inductiva basado en entrevistas a los docentes involucrados para conocer las actividades y procesos que conlleva el desarrollo de este tipo de proyectos. Los SMO permiten preservar el conocimiento para ser utilizarlo en las actividades actuales y futuras. Uno de los problemas encontrados es que no se está conservando ni mucho menos compartiendo el conocimiento que las personas poseen como resultado de experiencias, prácticas, actitudes, entre otros aspectos, relacionados con los proyectos. Además el modelo resultante se implementó en un sistema basado en software libre y tecnologías web. La implementación de este modelo muestra como resultado un alto nivel de aceptación por parte de directivos e inves tigadores de los centros de I+D

  20. Multivalent Fcγ-receptor engagement by a hexameric Fc-fusion protein triggers Fcγ-receptor internalisation and modulation of Fcγ-receptor functions.

    Science.gov (United States)

    Qureshi, O S; Rowley, T F; Junker, F; Peters, S J; Crilly, S; Compson, J; Eddleston, A; Björkelund, H; Greenslade, K; Parkinson, M; Davies, N L; Griffin, R; Pither, T L; Cain, K; Christodoulou, L; Staelens, L; Ward, E; Tibbitts, J; Kiessling, A; Smith, B; Brennan, F R; Malmqvist, M; Fallah-Arani, F; Humphreys, D P

    2017-12-06

    Engagement of Fcγ-receptors triggers a range of downstream signalling events resulting in a diverse array of immune functions. As a result, blockade of Fc-mediated function is an important strategy for the control of several autoimmune and inflammatory conditions. We have generated a hexameric-Fc fusion protein (hexameric-Fc) and tested the consequences of multi-valent Fcγ-receptor engagement in in vitro and in vivo systems. In vitro engagement of hexameric-Fc with FcγRs showed complex binding interactions that altered with receptor density and triggered the internalisation and degradation of Fcγ-receptors. This caused a disruption of Fc-binding and phagocytosis. In vivo, in a mouse ITP model we observed a short half-life of hexameric-Fc but were nevertheless able to observe inhibition of platelet phagocytosis several days after hexameric-Fc dosing. In cynomolgus monkeys, we again observed a short half-life, but were able to demonstrate effective FcγR blockade. These findings demonstrate the ability of multi-valent Fc-based therapeutics to interfere with FcγR function and a potential mechanism through which they could have a sustained effect; the internalisation and degradation of FcγRs.

  1. Saúde coletiva: história de uma idéia e de um conceito

    Directory of Open Access Journals (Sweden)

    Everardo Duarte Nunes

    1994-12-01

    Full Text Available O presente trabalho procura resgatar de forma sintética a trajetória histórica e conceitual da "Saúde Coletiva", evidenciando as suas raízes nos projetos preventivistas e da medicina social. Estes projetos, que se estenderam a partir dos anos 50 e que culminam com a idéia da chamada "Saúde Coletiva", apresentam aspectos que os diferenciam na apreensão do social e do coletivo. Ao tratar especificamente da idéia de uma Saúde Coletiva, o texto aponta para a sua tríplice dimensão: como corrente de pensamento, como movimento social e como prática teórica.

  2. Estudio de los gastos de I+D :un análisis empírico en el sector del automóvil

    Directory of Open Access Journals (Sweden)

    Teresa Duarte Atoche, Ph.D

    2012-07-01

    Full Text Available La diferencia existente entre la información económico-financiera que divulgan las empresas y las necesidades informativas de los usuarios, han sido motivo de preocupación e interés creciente en el ámbito académico. La mayoría de las investigaciones sostienen que dicha diferencia viene explicada en gran medida por los activos intangibles desarrollados internamente, entre ellos los gastos de I+D .Actualmente sigue teniendo gran interés pues los organismos emisores de normas internacionales se encuentran en un proceso de armonización, en aras de revestir de utilidad de los actuales sistemas contables. El presente trabajo de investigación trata de contrastar la relevancia y fiabilidad de la información sobre I+D ,para ello, emplea, como función base, el modelo de Ohlson (1995. Los resultados rechazan la relevancia de los gastos de I+D corriente para valorar a las compañías cotizadas.

  3. Estudio de los gastos de I+D: un análisis empírico en el sector del automóvil

    Directory of Open Access Journals (Sweden)

    TERESA DUARTE ATOCHE

    2012-01-01

    Full Text Available La diferencia existente entre la información económico-financiera que divulgan las empresas y las necesidades informativas de los usuarios, han sido motivo de preocupación e interés creciente en el ámbito académico. La mayoría de las investigaciones sostienen que dicha diferencia viene explicada en gran medida por los activos intangibles desarrollados internamente, entre ellos los gastos de I+D. Actualmente sigue teniendo gran interés pues los organismos emisores de normas internacionales se encuentran en un proceso de armonización, en aras de revestir de utilidad de los actuales sistemas contables. El presente trabajo de investigación trata de contrastar la relevancia y fiabilidad de la información sobre I+D, para ello, emplea, como función base, el modelo de Ohlson (1995. Los resultados rechazan la relevancia de los gastos de I+D corriente para valorar a las compañías cotizadas.

  4. Controlling DIII-D QH-Mode Particle and Electron Thermal Transport with ECH

    Science.gov (United States)

    Ernst, D. R.; Burrell, K. H.; Rhodes, T. L.; Guttenfelder, W.; McKee, G. R.; Grierson, B. A.; Holland, C.; Dimits, A.; Petty, C. C.; Schmitz, L.; Wang, G.; Zeng, L.; Doyle, E. J.; Austin, M. E.

    2014-10-01

    Quiescent H-mode core particle transport and density peaking are locally controlled by modulated electron cyclotron heating (ECH) at ρ ~ 0 . 2 . Gyrokinetic simulations show density gradient driven trapped electron modes (TEMs) are only unstable in the inner core, where the density profile flattens in response to ECH. Thus α-heating could reduce density peaking, providing burn control. Density fluctuations from Doppler backscattering intensify at TEM wavenumbers kθρs ~ 0 . 8 during ECH, while new quasi-coherent modes are observed with adjacent toroidal mode numbers consistent with TEMs. Separately, ECH at two-deposition locations (r / a ~ ρ = 0 . 5 & 0.7) varied the electron temperature gradient. A jump in ``heat pulse'' diffusivity during the scan indicates a critical gradient was crossed. Work supported by the US DOE under DE-FC02-08ER54966, DE-FC02-04ER54698, DE-FG02-08ER54984, DE-AC02-09CH11466, DE-FG02-89ER53296, DE-FC02-11ER55104, DE-AC52-07NA27344 & DE-FG03-97ER54415.

  5. Validez y fiabilidad del Researcher ID y de «Web of Science Production of Spanish Psychology»

    Directory of Open Access Journals (Sweden)

    José Alonso Olivas-Ávila

    2014-01-01

    Full Text Available La creación de sistemas integradores de productos de investigación, como el Researcher ID de Thomson Reuters, ha sido una necesidad emergente debido a lo complejo que es para los investigadores demostrar de manera periódica el impacto y difusión de su investigación. Sin embargo, estos sistemas se alimentan de información proveniente de las diversas bases de datos y cada vez son más inclusivos para captar productos de investigación. Varios estudios bibliométricos han demostrado que las bases de datos contienen imprecisiones de varios tipos, que afectan directamente a los sistemas integradores. Como consecuencia, se plantea este estudio descriptivo con el fin de analizar la precisión de los registros del Researcher ID de los miembros del consejo de www.psy-wos.es y de una muestra de usuarios de esta página para cotejar los registros con los contenidos en la base de datos Web of Science, diferenciándolos de contenidos ajenos a esta base de datos. Los resultados reflejan que existen imprecisiones y errores considerables en los Researcher ID de la muestra analizada, tales como duplicidad de registros y la inclusión de registros ajenos a la Web of Science. Se concluye que los Resercher ID así como el www.psy-wos.es no son válidos ni fiables.

  6. Optimal football strategies: AC Milan versus FC Barcelona

    OpenAIRE

    Papahristodoulou, Christos

    2012-01-01

    In a recent UEFA Champions League game between AC Milan and FC Barcelona, played in Italy (final score 2-3), the collected match statistics, classified into four offensive and two defensive strategies, were in favour of FC Barcelona (by 13 versus 8 points). The aim of this paper is to examine to what extent the optimal game strategies derived from some deterministic, possibilistic, stochastic and fuzzy LP models would improve the payoff of AC Milan at the cost of FC Barcelona.

  7. Simultaneously saccharification and fermentation approach as a tool for enhanced fossil fuels biodesulfurization.

    Science.gov (United States)

    Paixão, Susana M; Arez, Bruno F; Roseiro, José C; Alves, Luís

    2016-11-01

    Biodesulfurization can be a complementary technology to the hydrodesulfurization, the commonly physical-chemical process used for sulfur removal from crude oil. The desulfurizing bacterium Gordonia alkanivorans strain 1B as a fructophilic microorganism requires fructose as C-source. In this context, the main goal of this work was the optimization of a simultaneous saccharification and fermentation (SSF) approach using the Zygosaccharomyces bailii strain Talf1 crude enzymes with invertase activity and sucrose as a cheaper fructose-rich commercial C-source (50% fructose) towards dibenzothiophene (DBT) desulfurization by strain 1B. The determination of optimal conditions, for both sucrose hydrolysis and DBT desulfurization was carried out through two sequential experimental uniform designs according to the Doehlert distribution for two factors: pH (5.5-7.5) and temperature (28-38 °C), with the enzyme load of 1.16 U/g/L; and enzyme load (0-4 U/g/L) and temperature (28-38 °C), with pH at 7.5. Based on 2-hydroxybiphenyl production, the analysis of the response surfaces obtained pointed out for pH 7.5, 32 °C and 1.8 U/g/L as optimal conditions. Further optimized SSF of sucrose during the DBT desulfurization process permitted to attain a 4-fold enhanced biodesulfurization. This study opens a new focus of research through the exploitation of sustainable low cost sucrose-rich feedstocks towards a more economical viable bioprocess scale-up. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. Final Technical Report for DOE Award DE-FG07-00ID13890

    Energy Technology Data Exchange (ETDEWEB)

    Timothy R. Titus

    2006-02-28

    The ITRC is a state-led national coalition dedicated to developing tools and strategies to overcome barriers and enable the deployment of beneficial new environmental technologies. ITRC works in partnership with federal agencies, industry, academia, and public and tribal stakeholders to develop these tools and strategies and means of disseminating the tools to state environmental regulators, and technology users

  9. Sistema de memoria organizacional para centros I+D de una institución de educación superior

    Directory of Open Access Journals (Sweden)

    Ruth Reátegui, Ana Poma

    2015-05-01

    Full Text Available El objetivo del artículo es proponer un modelo de Sistemas de Memoria Organizacional (SMO para un centro de Investigación y Desarrollo (I+D basado en cuatro componentes: social, cultural, tecnológico y de procesos para una IES de Ecuador. Las instituciones de educación superior (IES son organizaciones donde la investigación es una de sus actividades fundamentales que requiere una adecuada gestión del conocimiento. Para esta propuesta se utilizó un método de investigación inductiva basado en entrevistas a los docentes involucrados para conocer las actividades y procesos que conlleva el desarrollo de este tipo de proyectos. Los SMO permiten preservar el conocimiento para ser utilizarlo en las actividades actuales y futuras. Uno de los problemas encontrados es que no se está conservando ni mucho menos compartiendo el conocimiento que las personas poseen como resultado de experiencias, prácticas, actitudes, entre otros aspectos, relacionados con los proyectos. Además el modelo resultante se implementó en un sistema basado en software libre y tecnologías web. La implementación de este modelo muestra como resultado un alto nivel de aceptación por parte de directivos e investigadores de los centros de I+D.

  10. Voix des peuples et idée de nation chez Herder

    Directory of Open Access Journals (Sweden)

    Mario Longo

    2005-01-01

    Full Text Available L'idée de nation se manifeste dans le contexte de la pensée herderienne du langage, en polémique avec les idéaux cosmopolites du siècle des Lumières. En niant une nature humaine toujours égale et sans différences qualitatives, Herder soutient l'originalité de chaque moment du développement historique, compte tenu de la nature linguistique, et donc historique, de l'homme. En utilisant une métaphore suggérée par Herder, l'humanité est un concert polyphonique, d'autant plus majestueux et harmonique que son orchestration est riche et nombreuse. Écouter la voix des peuples pour comprendre l'homme dans son expression la plus étendue: ceci est l'objectif des recherches linguistiques et historico-littéraires du jeune Herder aboutissant dans l'imposant tableau historique de Auch eine Philosophie der Geschichte. Cette vision de l'histoire, qui tend à mettre en valeur le fragment et les parties, ne conduit pas toutefois au relativisme historique, à la négation du sens universel de l'histoire, mais vise à critiquer un modèle de cosmopolitisme à la Voltaire, froid et abstrait, qui ne sait comprendre et aimer que soi-même, ayant glorifié à tel point le principe de sa propre culture qu'il reste indifférent à toutes les autres manifestations de la vie des peuples. Il en ressort, d'un côté, une vive appréciation pour l'âme de chaque peuple, âme qui par la magie du langage vit dans ses expressions les plus authentiques dans la poésie, dans les mythes et dans la religion, et, d'autre part, la primauté attribuée à ces facteurs spirituels de la vie des peuples par rapport à l'organisation politique de l'état. L'idée de nation pour Herder ne se résout donc pas dans la négation du cosmopolitisme, mais plutôt dans le refus de ce cosmopolitisme basé sur la politique, propre du siècle des Lumières, qui avait fait de la création de l'État-machine un modèle que l'on aurait voulu imposer à tous les peuples de la terre.

  11. Aplicación de GHSOM (Growing Hierarchical Self-Organizing Maps a sistemas de detección de intrusos (IDS

    Directory of Open Access Journals (Sweden)

    Eduardo Miguel De la Hoz

    2012-01-01

    Full Text Available Con el pasar de los años, en el ámbito de la seguridad informática el problema de la intrusión se desarrolla cada día más, incrementando la existencia de programas que buscan afectar a computadoras tanto a nivel local como a toda una red informática. Esta dinámica lleva a entender los ataques y la mejor manera de contrarrestarlos, ya sea previniéndolos o detectándolos a tiempo, procurando que su impacto sea menor al esperado por el atacante. En este artículo se presenta una revisión de los ataques a sistemas informáticos, ahondando en los Sistemas de Detección de Intrusos (IDS y en la implementación de técnicas de agrupamiento de datos —como las redes neuronales—, con el fin de encontrar métodos con altas precisiones en la detección de anomalías. Esta propuesta presenta la aplicación de GHSOM en IDS, utilizando el conjunto de datos NSL-KDD, y mostrando las mejoras encontradas en la detección de ataques en el proceso de búsqueda.

  12. Evolucion de las habilidades y la estructura ocupacional: un estudio del sector de I+D

    OpenAIRE

    Elche Hortelano, Dioni; Consoli, Davide

    2014-01-01

    Este trabajo se centra en el estudio del sector de servicios de I+D por su importancia actual, contextualizado en Estados Unidos (EE.UU.) debido a los antecedentes históricos del sector, y porque éste ha sido un país pionero en el desarrollo de este tipo de servicios. Analizamos la estructura ocupacional a partir del nivel de empleo, los requisitos de formación y las habilidades requeridas a los empleados para trabajar en cada una de las ocupaciones del sector. En concreto, el objetivo princi...

  13. Producción de anticuerpos policlonales IgG contra la proteina iduronato-2-sulfato sulfatasa y desarrollo de un sistema de detección para IDS humana recombinante.

    Directory of Open Access Journals (Sweden)

    Olga Peña

    2005-06-01

    Full Text Available Introducción. La enfermedad de Hunter es un trastorno lisosómico caracterizado por la deficiencia de la enzima iduronato-2-sulfato sulfatasa (IDS (EC 3.1.6.13. Esta enfermedad, al igual que muchos trastornos metabólicos, son patologías intratables mediante la terapéutica convencional; sin embargo, existe la posibilidad de ser tratada alternativamente mediante terapia génica o terapia de reemplazo enzimático. Objetivo. El Instituto de Errores Innatos del Metabolismo (IEIM ha desarrollado un sistema de expresión de sulfatasas para producir IDS humana recombinante (IDShr en Escherichia coli y Pichia pastoris, con resultados favorables. El objetivo principal de este trabajo fue desarrollar un sistema de detección de IDS humana recombinante. Materiales y métodos. Para el efecto, se inmunizaron con IDS comercial de TKT (Cambridge, MA dos conejos de raza Nueva Zelanda blanca y los anticuerpos purificados a partir del suero se utilizaron en el desarrollo de una técnica semicuantitativa por dot-blot. Diferentes muestras de extractos crudos de fermentaciones con P. pastoris y E. coli se procesaron con el fin de poder determinar la presencia de la enzima. Resultados. Se demostró que los anticuerpos eran específicos en el reconocimiento de la IDS sin presentar reactividad cruzada con proteínas contaminantes de los extractos crudos. Conclusión. Por consiguiente, los anticuerpos se podrán usar en el desarrollo de una técnica ELISA tipo sandwich como método de detección y cuantificación de la enzima y en procesos de purificación de la misma mediante cromatografía de afinidad.

  14. Diesel Engine Light Truck Application

    Energy Technology Data Exchange (ETDEWEB)

    None

    2007-12-31

    The Diesel Engine Light Truck Application (DELTA) program consists of two major contracts with the Department of Energy (DOE). The first one under DE-FC05-97-OR22606, starting from 1997, was completed in 2001, and consequently, a final report was submitted to DOE in 2003. The second part of the contract was under DE-FC05-02OR22909, covering the program progress from 2002 to 2007. This report is the final report of the second part of the program under contract DE-FC05-02OR22909. During the course of this contract, the program work scope and objectives were significantly changed. From 2002 to 2004, the DELTA program continued working on light-duty engine development with the 4.0L V6 DELTA engine, following the accomplishments made from the first part of the program under DE-FC05-97-OR22606. The program work scope in 2005-2007 was changed to the Diesel Particulate Filter (DPF) soot layer characterization and substrate material assessment. This final report will cover two major technical tasks. (1) Continuation of the DELTA engine development to demonstrate production-viable diesel engine technologies and to demonstrate emissions compliance with significant fuel economy advantages, covering progress made from 2002 to 2004. (2) DPF soot layer characterization and substrate material assessment from 2005-2007.

  15. Três idéias sedutoras e quatro sugestões preciosas: algumas reflexões de Jerome Kagan

    Directory of Open Access Journals (Sweden)

    José Fernando Bitencourt Lomônaco

    Full Text Available São consideradas três idéias, denominadas por Jerome Kagan idéias sedutoras pela sua capacidade de se apresentarem como intuitivamente verdadeiras. A primeira é a de que processos psicológicos tais como inteligência, consciência, etc, podem ser amplamente generalizados para uma ampla gama de situações. A segunda refere-se ao determinismo infantil, à crença de que as primeiras experiências infantis constituem uma influência determinante no desenvolvimento. A terceira é relativa ao princípio do prazer, à noção de que o comportamento humano é regido fundamentalmente pela busca do prazer. Fundamentado em dados de diferentes áreas do conhecimento, Kagan demonstra a falácia de cada uma dessas idéias e apresenta quatro sugestões construtivas para aqueles que trabalham nas ciências sociais e comportamentais.

  16. DeID – A Data Sharing Tool for Neuroimaging Studies

    Directory of Open Access Journals (Sweden)

    Xuebo eSong

    2015-09-01

    Full Text Available Funding institutions and researchers increasingly expect that data will be shared to increase scientific integrity and provide other scientists with the opportunity to use the data with novel methods that may advance understanding in a particular field of study. In practice, sharing human subject data can be complicated because data must be de-identified prior to sharing. Moreover, integrating varied data types collected in a study can be challenging and time consuming. For example, sharing data from structural imaging studies of a complex disorder requires the integration of imaging, demographic and/or behavioral data in a way that no subject identifiers are included in the de-identified dataset and with new subject labels or identification values that cannot be tracked back to the original ones. We have developed a Java program that users can use to remove identifying information in neuroimaging datasets, while still maintaining the association among different data types from the same subject for further studies. This software provides a series of user interaction wizards to allow users to select data variables to be de-identified, implements functions for auditing and validation of de-identified data, and enables the user to share the de-identified data in a single compressed package through various communication protocols, such as FTPS and SFTP. DeID runs with Windows, Linux, and Mac operating systems and its open architecture allows it to be easily adapted to support a broader array of data types, with the goal of facilitating data sharing. DeID can be obtained at http://www.nitrc.org/projects/deid.

  17. 40 CFR 230.97 - Management.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 24 2010-07-01 2010-07-01 false Management. 230.97 Section 230.97... Losses of Aquatic Resources § 230.97 Management. (a) Site protection. (1) The aquatic habitats, riparian.... For government property, long-term protection may be provided through federal facility management...

  18. 40 CFR 97.73 - Notifications.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Notifications. 97.73 Section 97.73 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS Monitoring and Reporting § 97.73...

  19. 40 CFR 97.355 - Banking.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Banking. 97.355 Section 97.355 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... System § 97.355 Banking. (a) CAIR NOX Ozone Season allowances may be banked for future use or transfer in...

  20. Spray Forming Aluminum - Final Report (Phase II)

    Energy Technology Data Exchange (ETDEWEB)

    D. D. Leon

    1999-07-08

    The U.S. Department of Energy - Office of Industrial Technology (DOE) has an objective to increase energy efficient and enhance competitiveness of American metals industries. To support this objective, ALCOA Inc. entered into a cooperative program to develop spray forming technology for aluminum. This Phase II of the DOE Spray Forming Program would translate bench scale spray forming technology into a cost effective world class process for commercialization. Developments under DOE Cooperative Agreement No. DE-FC07-94ID13238 occurred during two time periods due to budgetary constraints; April 1994 through September 1996 and October 1997 and December 1998. During these periods, ALCOA Inc developed a linear spray forming nozzle and specific support processes capable of scale-up for commercial production of aluminum sheet alloy products. Emphasis was given to alloys 3003 and 6111, both being commercially significant alloys used in the automotive industry. The report reviews research performed in the following areas: Nozzel Development, Fabrication, Deposition, Metal Characterization, Computer Simulation and Economics. With the formation of a Holding Company, all intellectual property developed in Phases I and II of the Project have been documented under separate cover for licensing to domestic producers.

  1. Molecular biological enhancement of coal biodesulfurization. Seventh quarter report, May--July 1990

    Energy Technology Data Exchange (ETDEWEB)

    Kilbane, J.J.; Bielaga, B.A.

    1990-07-01

    The overall objective of this project is to sue molecular genetics to develop strains of bacteria with enhanced ability to remove sulfur from coal and to obtain data that will allow the performance and economics of a coal biodesulfurization process to be predicted. The work planned for the current quarter (May 1990 to July 1990) includes the following activities: (1) Construct a cloning vector that can be used in Rhodococcus rhodochrous IGTS8 from the small cryptic plasmid found in Rhodococcus rhodochrous ATCC 190607; (2) Develop techniques for the genetic analysis of IGTS8; (3) Continue biochemical experiments, particularly those that may allow the identification of desulfurization-related enzymes; (4) Continue experiments with coal to determine the kinetics of organic sulfur removal.

  2. 40 CFR 97.301 - Purpose.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Purpose. 97.301 Section 97.301 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... and nitrogen oxides. ...

  3. 29 CFR 97.33 - Supplies.

    Science.gov (United States)

    2010-07-01

    ... aggregate fair market value upon termination or completion of the award, and if the supplies are not needed... 29 Labor 1 2010-07-01 2010-07-01 true Supplies. 97.33 Section 97.33 Labor Office of the Secretary... GOVERNMENTS Post-Award Requirements Changes, Property, and Subawards § 97.33 Supplies. (a) Title. Title to...

  4. Aliénation et idéologie

    OpenAIRE

    Kanabus, Benoît; Popa, Délia

    2017-01-01

    Dès lors, on entend mieux la question sur laquelle se referment les mille pages du Marx : « La pensée de Marx nous place devant la question abyssale : qu’est-ce que la vie » ? Cette question peut être reposée à nouveaux frais à l’âge du capitalisme avancé, où, comme le notait Adorno, la vie est devenue « l’idéologie de sa propre absence ». La recherche d’un autre rapport à l’idéologie vient alors prendre le relais de la lutte anti-idéologique de la théorie critique. Cette recherche part du po...

  5. L’idéologie dans les chants de l’EPON

    Directory of Open Access Journals (Sweden)

    Joëlle Dalègre

    2011-11-01

    Full Text Available L’idéologie de l’EPON, (organisation de jeunesse de la résistance grecque vue à travers ses chants, l’une de ses armes favorites de propagande.Cette communication se propose, à travers quelques chants, de montrer les grandes thèmes idéologiques de l’EPON, tout en la replaçant dans le cadre spécifique grec. Créée par le mouvement de résistance de masse du pays, l’EAM, l’EPON se propose d’encadrer les jeunes de tous âges, de les faire participer à la résistance, civile et parfois armée et de les conduire vers la construction de l’avenir radieux qui leur est promis à la fin de la guerre. Le chant fait partie des nombreux moyens de propagande utilisés par l’EPON (et précédemment par l’EON mais aussi d’un réel travail d’éducation entrepris en tous lieux par les cadres de l’organisation, souvent des enseignants. Justice, travail, école, prospérité, égalité homme/femme, des réalités inconnues dans la Grèce de l’avant-guerre qui ne peuvent que provoquer enthousiasme et espérance dans une génération prête à se sacrifier généreusement.Based on a number of songs, this communication summarizes the great ideological themes of EPON, while at the same time placing them in the specifically Greek context. Created by EAM, the national resistance movement, EPON set out to recruit the young of all ages, to make them participate in the civil and armed resistance against the occupiers, and to help them build the brilliant future they were promised at the end of the war. Song was one of the many forms of propaganda used by EPON, but also a real form of education undertaken everywhere by the heads of the organisation, who were often teachers. Justice, work, school, prosperity, equality between men and women, unknown realities in pre-war Greece that could only inspire enthusiasm and hope in a generation prepared to make any sacrifice.

  6. Revendo idéias de Viktor Frankl no centenário de seu nascimento

    Directory of Open Access Journals (Sweden)

    Roehe, Marcelo V.

    2005-01-01

    Full Text Available Em homenagem ao centenário de nascimento do psicoterapeuta austríaco Viktor Frankl, o artigo apresenta uma síntese de sua vasta produção teórica. Frankl foi o criador de Logoterapia, chamada, por vezes, de terapia do sentido da vida em função de sua idéia básica, a de que o ser humano vive motivado, fundamentalmente, pela vontade de realizar sentido na vida; para isso, o homem deve se empenhar na realização de valores na forma de criações, vivências e atitudes. A teorização de Frankl, historicamente situada no campo fenomenológico-existencial, é uma das que mais radicalmente se opôs a qualquer reducionismo no entendimento do ser humano

  7. 40 CFR 97.1 - Purpose.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Purpose. 97.1 Section 97.1 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... transport of ozone and nitrogen oxides, an ozone precursor. ...

  8. Beam transport radiation shielding for branch lines 2-ID-B and 2-ID-C

    International Nuclear Information System (INIS)

    Feng, Y.P.; Lai, B.; McNulty, I.; Dejus, R.J.; Randall, K.J.; Yun, W.

    1995-01-01

    The x-ray radiation shielding requirements beyond the first optics enclosure have been considered for the beam transport of the 2-ID-B and 2-ID-C branch lines of Sector 2 (SRI-CAT) of the APS. The first three optical components (mirrors) of the 2-ID-B branch are contained within the shielded first optics enclosure. Calculations indicate that scattering of the primary synchrotron beam by beamline components outside the enclosure, such as apertures and monochromators, or by gas particles in case of vacuum failure is within safe limits for this branch. A standard 2.5-inch-diameter stainless steel pipe with 1/16-inch-thick walls provides adequate shielding to reduce the radiation dose equivalent rate to human tissue to below the maximum permissible limit of 0.25 mrem/hr. The 2-ID-C branch requires, between the first optics enclosure where only two mirrors are used and the housing for the third mirror, additional lead shielding (0.75 mm) and a minimum approach distance of 2.6 cm. A direct beam stop consisting of at least 4.5 mm of lead is also required immediately downstream of the third mirror for 2-ID-C. Finally, to stop the direct beam from escaping the experimental station, a beam stop consisting of at least 4-mm or 2.5-mm steel is required for the 2-ID-B or 2-ID-C branches, respectively. This final requirement can be met by the vacuum chambers used to house the experiments for both branch lines

  9. Enhancement of dibenzothiophene biodesulfurization using {beta}-cyclodextrins in oil-to-water media

    Energy Technology Data Exchange (ETDEWEB)

    Ainhoa Caro; Pedro Leton; Eloy Garcia-Calvo; Leonardo Setti [Universidad de Alcala, Madrid (Spain). Departamento de Quimica Analitica e Ingeniera Quimica

    2007-11-15

    It has been reported that biodesulfurization (BDS) of dibenzothiophene (DBT) in oil-to-water emulsions is carried out by growing cells of the aerobic Rhodococcus erythropolis IGTS8 strain and developing the so-called 4S desulfurization pathway. On adding {beta}-cyclodextrins, it is possible to improve the BDS yields, increase the diffusion of DBT into the aqueous phase or avoid the HBP accumulation. Moreover, by using greater biocatalyst initial concentrations and adding 15 ppm of {beta}-cyclodextrin, a very high BDS yield has been observed, but the presence of mass transfer limitations and the inhibition effects were not satisfactorily avoided. The Haldane kinetic model agreed well with the experimental results obtained, and the values of the kinetic parameters were determined. Short communication. 20 refs., 2 figs., 2 tabs.

  10. Optimization on Fc for Improvement of Stability and Aggregation Resistance.

    Science.gov (United States)

    Chen, Xiaobo; Zeng, Fang; Huang, Tao; Cheng, Liang; Liu, Huan; Gong, Rui

    2016-01-01

    Fc-based therapeutics including therapeutic full-size monoclonal antibodies (mAbs) and Fcfusion proteins represent fastest-growing market in biopharmaceutical industrial. However, one major challenge during development of Fc-based therapeutics is how to maintain their efficacy in clinic use. Many factors may lead to failure in final marketing. For example, the stability and aggregation resistance might not be high enough for bearing the disadvantages during fermentation, purification, formulation, storage, shipment and other steps in manufacture and sale. Low stability and high aggregation tendency lead to decreased bioactivity and increased risk of immunogenicity resulting in serious side effect. Because Fc is one of the major parts in monoclonal antibodies and Fc-fusion proteins, engineering of Fc to increase its stability and reduce or eliminate aggregation due to incorrect association are of great importance and could further extend the potential of Fc-based therapeutics. Lots of studies focus on Fc optimization for better physical and chemical characteristics and function by structured-based computer-aid rational design, high-throughput screening expression system selection and other methods. The identification of optimized Fc mutants increases the clinic potential of currently existed therapeutics mAbs and Fc-fusion proteins, and accelerates the development of new Fc-based therapeutics. Here we provide an overview of the related field, and discuss recent advances and future directions in optimization of Fc-based therapeutics with modified stability and aggregation resistance. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  11. Información sobre I+D y valoración de empresas El caso del sector automotriz en Estados Unidos de Norteamérica y Reino Unido

    Directory of Open Access Journals (Sweden)

    Teresa Duarte Atoche

    2012-01-01

    Full Text Available Los Principios de Contabilidad Generalmente Aceptados en EE.UU. requieren del tratamiento como gasto de las inversiones de I+D. Sin embargo, las Normas Internacionales de Información Financiera permiten su capitalización siempre y cuando se cumplan ciertos criterios (IAS 38. En la actualidad, la Junta de Normas Internacionales de Contabilidad (IASB y el Consejo de Normas de Contabilidad Financiera (FASB están de acuerdo en unificar esfuerzos para reducir o eliminar las diferencias entre el IFRS y los Principios de Contabilidad Generalmente Aceptados en EE.UU. Los comités del IASB y FASB continúan trabajando sobre las inversiones en I+D; por ello es que en este trabajo se contrastó la relevancia y fiabilidad de la información sobre I+D con objeto de poder estimar el valor de mercado de las empresas que cotizan en los mercados de capitales. El método se centró en el empleo en diferentes variaciones del modelo de Ohlson (1995. La muestra estuvo formada por empresas que cotizan en Estados Unidos y en el Reino Unido y que pertenecen al sector del automóvil; el horizonte temporal analizado comprende diez años (1995-2004. Se encontró que los inversores consideran la inversión en I+D con un lapso temporal mayor a un ejercicio económico como un activo; sin embargo, la inversión en I+D corriente es considerada como un gasto del ejercicio sin aportar valor añadido a las compañías; consecuencia de esto, la normativa internacional debería seguir lo regulado por el IASB.

  12. 28 CFR 97.12 - Employee training.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 2 2010-07-01 2010-07-01 false Employee training. 97.12 Section 97.12... OR DETAINEE SERVICES § 97.12 Employee training. Private prisoner transport companies must require the completion of a minimum of 100 hours of employee training before an employee may transport violent prisoners...

  13. 29 CFR 97.25 - Program income.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Program income. 97.25 Section 97.25 Labor Office of the... LOCAL GOVERNMENTS Post-Award Requirements Financial Administration § 97.25 Program income. (a) General. Grantees are encouraged to earn income to defray program costs. Program income includes income from fees...

  14. Universidad e investigación: la financiación competitiva de los proyectos de I+D, con especial referencia a las Ciencias Sociales y Económicas

    Directory of Open Access Journals (Sweden)

    LUIS SANZ MENÉNDEZ

    2005-01-01

    Full Text Available El objetivo de este trabajo es medir la relación de las universidades con la investigación. Se trata de situar a cada universidad en escalas relativas de capacidad investigadora, de esfuerzo u orientación hacia la investigación y de excelencia investigadora. El método utilizado se basa en el análisis de los resultados agregados de la competencia que los investigadores desarrollan por la financiación pública de la I+D. El periodo utilizado para la construcción de los datos corresponde a los proyectos de I+D financiados por la Administración General del Estado entre 1996 y 2001, a través de los Programas Nacionales de I+D y del Programa de Promoción General del Conocimiento (PGC. De modo singular se analizarán las actividades de investigación en el ámbito de las Ciencias Sociales y Económicas.

  15. 40 CFR 97.101 - Purpose.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Purpose. 97.101 Section 97.101 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... chapter, as a means of mitigating interstate transport of fine particulates and nitrogen oxides. ...

  16. 29 CFR 97.41 - Financial reporting.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Financial reporting. 97.41 Section 97.41 Labor Office of the... LOCAL GOVERNMENTS Post-Award Requirements Reports, Records Retention, and Enforcement § 97.41 Financial reporting. (a) General. (1) Except as provided in paragraphs (a)(2) and (5) of this section, grantees will...

  17. Coherencia de tendencias en cosmética, con procesos de I+D en BELCORP

    Directory of Open Access Journals (Sweden)

    Iván Felipe Acosta

    2016-07-01

    Full Text Available La constante necesidad de las empresas por actualizarse o reinventarse para mantenerse vigentes en el mercado ha llevado a que tengan como estrategia la implementación de modelos de Innovación y Desarrollo (I+D. BELCORP, una empresa del sector cosmético ha implementado un sistema denominado Stage Gate, una metodología eficiente para el desarrollo de productos que comprende desde la conceptualización hasta la etapa posterior al lanzamiento y la comercialización de sus productos. Para garantizar su éxito, BELCORP tiene como estrategia mantenerse al día con las tendencias de la moda vigente pero, para lanzar sus productos también está considerando otros factores como los gustos de los consumidores, la cultura y las posibilidades tecnológicas existentes en los mercados donde tiene presencia.

  18. 29 CFR 97.44 - Termination for convenience.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Termination for convenience. 97.44 Section 97.44 Labor Office of the Secretary of Labor UNIFORM ADMINISTRATIVE REQUIREMENTS FOR GRANTS AND COOPERATIVE... § 97.44 Termination for convenience. Except as provided in § 97.43 awards may be terminated in whole or...

  19. Événement, idéologie et utopie

    Directory of Open Access Journals (Sweden)

    Jean-Luc AMALRIC

    2014-12-01

    Full Text Available RESUMEL’hypothèse que tente d’esquisser cet article est que l’idée ricœurienne d’une médiatisation dynamique des contradictions de l’imaginaire social présuppose une corrélation originaire de l’idéologie et de l’utopie qui ne peut elle-même être comprise qu’à partir de l’événement de l’institution d’un imaginaire social constituant. Dans un premier temps, l’article s’efforce de cerner ce qui fait la spécificité de la théorie ricœurienne de l’idéologie et de l’utopie comme « pratiques imaginatives », en soulignant à ce titre l’influence déterminante des thèses de Jacques Ellul sur l’idéologie. Puis, dans un second temps, il s’engage dans une analyse régressive qui conduit de la réappropriation ricœurienne de la conception dialectique de l’idéologie et de l’utopie exposée par Mannheim à l’idée d’un fondement événementiel de ces deux formes opposées de l’imaginaire social.Mots-Clés : Evénement, idéologie, utopie, Ellul, Mannheim. ABSTRACTThis paper attempts to sketch out the hypothesis that the Ricœurian conception of a dynamic mediatization of the contradictions of the social imaginary presupposes an original correlation between ideology and utopia, which can itself be understood only from the event that institutes a constitutive social imaginary. The first part of the paper marks out the specificity of the Ricœurian theory of ideology and utopia in terms of “imaginative practices”, underlining the determining influence of Jacques Ellul’s theses on ideology. The second part tries to develop a regressive argument, starting from the Ricœurian re-appropriation of Mannheim’s dialectical conception of ideology and utopia, and leading back to the idea of an event foundation for these two opposed forms of the social imaginary.Keywords : Event, Ideology, Utopia, Ellul, Mannheim   

  20. 40 CFR 97.55 - Banking.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Banking. 97.55 Section 97.55 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... Banking. NOX allowances may be banked for future use or transfer in a compliance account, an overdraft...

  1. 29 CFR 452.97 - Secret ballot.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 2 2010-07-01 2010-07-01 false Secret ballot. 452.97 Section 452.97 Labor Regulations... OF 1959 Election Procedures; Rights of Members § 452.97 Secret ballot. (a) A prime requisite of elections regulated by title IV is that they be held by secret ballot among the members or in appropriate...

  2. Engineering of Immunoglobulin Fc Heterodimers Using Yeast Surface-Displayed Combinatorial Fc Library Screening.

    Directory of Open Access Journals (Sweden)

    Hye-Ji Choi

    Full Text Available Immunoglobulin Fc heterodimers, which are useful scaffolds for the generation of bispecific antibodies, have been mostly generated through structure-based rational design methods that introduce asymmetric mutations into the CH3 homodimeric interface to favor heterodimeric Fc formation. Here, we report an approach to generate heterodimeric Fc variants through directed evolution combined with yeast surface display. We developed a combinatorial heterodimeric Fc library display system by mating two haploid yeast cell lines, one haploid cell line displayed an Fc chain library (displayed FcCH3A with mutations in one CH3 domain (CH3A on the yeast cell surface, and the other cell line secreted an Fc chain library (secreted FcCH3B with mutations in the other CH3 domain (CH3B. In the mated cells, secreted FcCH3B is displayed on the cell surface through heterodimerization with the displayed FcCH3A, the detection of which enabled us to screen the library for heterodimeric Fc variants. We constructed combinatorial heterodimeric Fc libraries with simultaneous mutations in the homodimer-favoring electrostatic interaction pairs K370-E357/S364 or D399-K392/K409 at the CH3 domain interface. High-throughput screening of the libraries using flow cytometry yielded heterodimeric Fc variants with heterodimer-favoring CH3 domain interface mutation pairs, some of them showed high heterodimerization yields (~80-90% with previously unidentified CH3 domain interface mutation pairs, such as hydrogen bonds and cation-π interactions. Our study provides a new approach for engineering Fc heterodimers that could be used to engineer other heterodimeric protein-protein interactions through directed evolution combined with yeast surface display.

  3. 40 CFR 97.155 - Banking.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Banking. 97.155 Section 97.155 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX... Banking. (a) CAIR NOX allowances may be banked for future use or transfer in a compliance account or a...

  4. 40 CFR 97.40 - Trading program budget.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Trading program budget. 97.40 Section...) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS NOX Allowance Allocations § 97.40 Trading program budget. In accordance with §§ 97.41 and 97.42, the Administrator will allocate to the NOX...

  5. Electron ID in ATLAS Run 2

    CERN Document Server

    Thais, Savannah Jennifer; The ATLAS collaboration

    2018-01-01

    Efficient and accurate electron identification is of critical importance to measuring many physics processes with leptons in the final state, including H->4l, dark vector boson searches, and various SUSY searches. This poster will describe the current status of the Likelihood driven Electron ID, highlighting the recent move from a MC driven ID to a data-driven ID. It will include the most recent identification efficiency and scale-factor measurements. Additionally, it will describe continued improvements for Run 2 electron ID, highlighting improvements in the low pt region and potential Machine Learning improvements.

  6. Zircaloy cladding ID/OD oxidation studies. Final report

    International Nuclear Information System (INIS)

    Westerman, R.E.; Hesson, G.M.

    1977-11-01

    The ID/OD oxide ratio that forms on Zircaloy tubing at temperatures relevant to postulated LOCA conditions was measured as a function of time, temperature, and distance from the rupture. The average ratio at the rupture position was less than unity, and decreased with decreasing test time and increasing distance from the point of rupture. The maximum observed ID/OD oxide ratio was 1.4. Ratios in excess of unity were typically found to be a consequence of the OD oxide being thinner than would have been anticipated from the nominal test conditions. Confirmatory data were also obtained on the isothermal oxidation kinetics of Zircaloy. These data are in good agreement with those obtained by other investigators and confirm the conservative nature of the Baker-Just equation that is required for use in licensing calculations

  7. 40 CFR 97.255 - Banking.

    Science.gov (United States)

    2010-07-01

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

  8. Bio-desulfurization technology in Japan; Wagakuni ni okeru baio datsuryu gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    Maruhashi, K. [Petroleum Energy Center, Tokyo (Japan)

    2000-05-01

    A bio-reaction of microbes (catalytic reaction by an enzyme) is characterized in that the reaction is carried out at a normal temperature and under a normal pressure and has particularly high specificity with respect to substrate (reactant). It is considered that a low loading process of environment harmony type can be constructed by applying the bio-reaction in petroleum refinery process. CO{sub 2} exhaust and energy consumption in the bio-desulfurization (BDS) is estimated to be 70 to 80% lower than those in hydrodesulfurization (HDS). The bio-technologies that can be applied to the petroleum refinery process include, for example, desulfurization, demetallation, dewaxing, denitration, cracking and so on. In this paper, the present state of bio-desulphurization technology is introduced. Particularly, as the research results in Japan, acquirement of mesophile R.erythropolis KA2-5-1 strain, thermophile Paenibacillus sp. A11-2 strain whose optimum temperature is 50 degrees C, BT degradation fungus Rhodococcus sp. T09 and the like are introduced. (NEDO)

  9. Roman picaresque et prose d’idées : Guzmán de Alfarache de Mateo Alemán

    Directory of Open Access Journals (Sweden)

    Jean-Louis Brau

    2011-01-01

    Full Text Available La prose d’idées et la littérature ne sont pas des catégories textuelles étanches car si la première utilise abondamment des exempla fictionnels pour illustrer ses démonstrations, la seconde contient toujours une dimension idéologique plus ou moins importante et plus ou moins explicite. Il s’agit donc d’une affaire de « dosage » entre la matière idéologique et la matière fictionnelle, dosage qui permet en principe de ranger les oeuvres dans l’une ou l’autre catégorie, ce qui n’est pas toujours évident car certaines oeuvres se situent à la frontière entre les deux. C’est le cas du roman picaresque espagnol, facétieux et burlesque, mais qui véhicule aussi dès les origines une indéniable satire sociale et morale. Le chef-d’œuvre du genre, le Guzmán de Alfarache de Mateo Alemán, se distingue par sa structure extrêmement digressive. Les aventures picaresques du protagoniste sont constamment entrecoupées de discours idéologiques sur toutes sortes de sujets touchant à la société et à la morale, discours entrelardés de cellules narratives secondaires qui font office d’exempla. L’ensemble de ces « sermons », d’un pessimisme profond, a sa source dans la doctrine religieuse catholique longuement exposée et appliquée rigoureusement et dans laquelle se détachent les thèmes fondamentaux du déterminisme, donc de la prédestination, et du libre arbitre de l’homme. Le Guzmán de Alfarache apparaît ainsi comme un vaste traité théologico-moral illustré par une infinité d’exempla parmi lesquels la fiction picaresque, l’histoire du gueux, est aussi un exemplum, le plus vaste et le plus important, au service de la thèse centrale du livre : la possibilité de rédemption de l’homme, fût-il le criminel le plus endurci, s’il est sauvé par la miséricorde divine. A tous les niveaux, thématique, réthorique et stylistique, le Guzmán de Alfarache a donc de grandes affinités avec la prose d’id

  10. A Scientific Calculator for Exact Real Number Computation Based on LRT, GMP and FC++

    Directory of Open Access Journals (Sweden)

    J. A. Hernández

    2012-03-01

    Full Text Available Language for Redundant Test (LRT is a programming language for exact real number computation. Its lazy evaluation mechanism (also called call-by-need and its infinite list requirement, make the language appropriate to be implemented in a functional programming language such as Haskell. However, a direction translation of the operational semantics of LRT into Haskell as well as the algorithms to implement basic operations (addition subtraction, multiplication, division and trigonometric functions (sin, cosine, tangent, etc. makes the resulting scientific calculator time consuming and so inefficient. In this paper, we present an alternative implementation of the scientific calculator using FC++ and GMP. FC++ is a functional C++ library while GMP is a GNU multiple presicion library. We show that a direct translation of LRT in FC++ results in a faster scientific calculator than the one presented in Haskell.El lenguaje de verificación redundante (LRT, por sus siglas en inglés es un lenguaje de programación para el cómputo con números reales exactos. Su método de evaluación lazy (o mejor conocido como llamada por necesidad y el manejo de listas infinitas requerido, hace que el lenguaje sea apropiado para su implementación en un lenguaje funcional como Haskell. Sin embargo, la implementación directa de la semántica operacional de LRT en Haskell así como los algoritmos para funciones básicas (suma, resta, multiplicación y división y funciones trigonométricas (seno, coseno, tangente, etc hace que la calculadora científica resultante sea ineficiente. En este artículo, presentamos una implementación alternativa de la calculadora científica usando FC++ y GMP. FC++ es una librería que utiliza el paradigma Funcional en C++ mientras que GMP es una librería GNU de múltiple precisión. En el artículo mostramos que la implementación directa de LRT en FC++ resulta en una librería más eficiente que la implementada en Haskell.

  11. Evaluación de cuatro métodos para la detección de Staphylococcus aureus meticilino-resistente de muestras clínicas en un hospital regional Evaluation of four methods for detecting methicillin-resistant Staphylococcus aureus isolates from clinical specimens at a regional hospital in Mexico

    Directory of Open Access Journals (Sweden)

    Gabriel Acosta-Pérez

    2012-02-01

    Full Text Available OBJETIVO: Investigar la prevalencia de Staphylococcus aureus meticilino-resistente (MRSA en aislados clínicos y determinar la concordancia entre los métodos de detección de MRSA en un laboratorio con recursos y personal limitado. MATERIAL Y MÉTODOS: Se analizaron 140 cepas de Staphylococcus aureus aisladas de muestras clínicas de diferentes departamentos mediante pruebas convencionales: producción de β-lactamasa, sensibilidad a oxacilina con MIC-Vitek 2-XL, ChromID MRSA, difusión en agar para discos de 30 μg de cefoxitina, detección de PBP2a y PCR para el gen mecA. Se determinó el índice kappa de Cohen, para evaluar la concordancia entre los diferentes métodos utilizados. RESULTADOS: La prevalencia encontrada fue de 90.7%. La sensibilidad y especificidad para los diferentes métodos de detección fue: difusión en disco para cefoxitina 97 y 92% respectivamente, MIC Vitek 2-XL 97 y 69%, ChromoID MRSA 97 y 85% y detección de PBP2a 98 y 100%. CONCLUSIONES: Todos los métodos son muy buenos para la detección de MRSA; la elección en el uso de cada método dependerá de la infraestructura de cada laboratorio.OBJETIVE: To estimate the prevalence of methicillin-resistant Staphylococcus aureus (MRSA in clinical isolates and to compare different methods for detection of MRSA in a lab with limited available personnel and resources. MATERIAL AND METHODS: 140 Staphylococcus aureus strains isolated from patients in several departments were assayed for β-lactamase production, MIC-Vitek 2 oxacillin, ChromID MRSA, disk diffusion in agar for cefoxitin 30 μg and PBP2a detection. The results of conventional tests were compared with the "gold standard" PCR test for mecA gene. Cohen´s kappa index was also calculated in order to evaluate the intra assay agreement between the used methods. RESULTS: The found prevalence was 90.7%. Sensitivity and specificity were: disk diffusion for cefoxitin 97 and 92% respectively, MIC Vitek 2-XL 97 and 69%, ChromoID

  12. Diseño e implementación de la red social NetID

    OpenAIRE

    Martín Vallés, Gabriel

    2015-01-01

    En esta memoria se va a documentar el desarrollo, diseño y programación de una red social denominada NetID. La red social implementada en este documento pretende mejorar las tecnologías de red social existentes en el mercado, basándonos en tres puntos clave como pilar de apoyo a la innovación: Objetivos. Cuestiones metodológicas. Entorno de la aplicación (marco tecnológico actual). La existencia de redes sociales es bien conocida por su gran auge en los últimos años en Internet. L...

  13. 29 CFR 97.26 - Non-Federal audit.

    Science.gov (United States)

    2010-07-01

    ... in a fiscal year, shall: (1) Determine whether State or local subgrantees have met the audit... 29 Labor 1 2010-07-01 2010-07-01 true Non-Federal audit. 97.26 Section 97.26 Labor Office of the... LOCAL GOVERNMENTS Post-Award Requirements Financial Administration § 97.26 Non-Federal audit. (a) Basic...

  14. Wicked ID: Conceptual Framework for Considering Instructional Design as a Wicked Problem

    Directory of Open Access Journals (Sweden)

    Katrin Becker

    2007-02-01

    Full Text Available The process of instructional design has parallels in other design disciplines. Software design is one that has experienced intense attention in the last 30 or so years, and many lessons learned there can be applied to ID. Using software design as a springboard, this concept paper seeks to propose a new approach to ID. It suggests that instructional design is almost always a Wicked Problem. The connection is formed between Wicked Problems as first described by Rittel and Webber in 1973, and the models in and processes of instructional design. The areas of social planning, organizational management and software design all posses some accepted and tested approaches to the solution of Wicked Problems. These will be described, and how they can be applied to ID will be explained. Finally, this paper will propose a meta-model for ID and explain how it can be used in the current context. Résumé : Le processus de conception pédagogique a des similitudes avec d’autres disciplines. La conception de logiciels a fait l’objet d’une grande attention dans les trente dernières années et de nombreuses leçons tirées peuvent s’appliquer à la conception pédagogique. En se basant sur la conception de logiciels, cet article cherche à proposer une nouvelle méthode à la conception pédagogique. Il laisse entendre que la conception pédagogique constitue presque toujours un problème épineux. Le lien est formé entre les problèmes épineux tels que décrits par Rittel et Webber en 1973 et les modèles et processus de la conception pédagogique. Les secteurs de l’organisation sociale, de la gestion des organisations et de la conception de logiciels comptent des méthodes acceptées et validées à la résolution de problèmes épineux. Nous les décrirons et expliquerons comment ils peuvent servir à la conception pédagogique. Enfin, l’article proposera un meta-modèle de la conception pédagogique et expliquera comment il peut servir dans le

  15. Corrosion rate of steel embedded in blended Portland and fluid catalytic cracking catalyst residue (FC3R cement mortars

    Directory of Open Access Journals (Sweden)

    Payá, J.

    2008-12-01

    Full Text Available This paper reports on a study of the corrosion levels in steel bars embedded in mortars made with a blend of Portland cement and (0-20% spent fluid catalytic cracking catalyst residue (FC3R, with a variable (0.3-0.7 water/binder (w/b ratio. The specimens were stored in the following conditions: relative humidity of 40, 80 or 100% and CO2 concentrations of 5 and 100%. The steel corrosion rate was measured with polarization resistance techniques. In the absence of aggressive agents, the steel was found to remain duly passivated in mortars with an FC3R content of up to 15% under all the conditions of relative humidity tested. The reinforcement corrosion level in mortars with a w/b ratio of 0.3 and 15% FC3R subjected to accelerated carbonation was similar to the level observed in the unblended Portland cement control mortar.En este trabajo se ha estudiado el nivel de corrosión de barras de acero embebidas en morteros de cemento Portland con relación agua/material cementante (a/mc variable (0,3-0,7, en los que parte del cemento (0-20% se sustituyó por catalizador de craqueo usado (FC3R. Las condiciones de conservación de las probetas elaboradas fueron las siguientes: distintas humedades relativas (40, 80 y 100% y dos concentraciones de CO2 (5 y 100%. La velocidad de corrosión de los aceros se midió mediante la técnica de resistencia de polarización. Se ha podido determinar que, bajo las distintas condiciones de humedad relativa y ausencia de agresivo, los aceros se mantuvieron correctamente pasivados en los morteros con contenidos de FC3R de hasta el 15%. El nivel de corrosión que presenta el refuerzo embebidos en morteros con sustitución de un 15% de cemento por FC3R y relación a/mc 0,3, al ser sometidos a un proceso de carbonatación acelerada, era muy similar al mostrado por el mortero patrón, sin FC3R.

  16. Mise en perspective de l’article de Jean Duvignaud « L'idéologie, cancer de la conscience »

    OpenAIRE

    Corbeau, Jean-Pierre

    2007-01-01

    Introduction à l’article de Jean Duvignaud « L'idéologie, cancer de la conscience », paru en 1969 dans le volume 46 des Cahiers internationaux de sociologie. Sa thématique concerne, depuis toujours, l'ensemble de la communauté scientifique, au-delà des frontières artificielles ou obsolètes entre sciences sociales, humaines, politiques, économiques, juridiques, du vivant, etc. Ses analyses résonnent avec l'actualité, concernent la citoyenneté qui s'interroge sur le fonctionnement de nos sociét...

  17. Influência do polimorfismo I/D do gene da eca na HPE de jovens normotensos

    Directory of Open Access Journals (Sweden)

    Manuella de Oliveira Fernandes

    2015-08-01

    Full Text Available INTRODUÇÃO: A hipotensão pós-exercício (HPE é considerada uma estratégia não farmacológica adotada para redução da pressão arterial (PA. Ademais, sabe-se que a presença de alguns polimorfismos genéticos influencia a resposta pressórica, como o I/D do gene da enzima conversora da angiotensina (ECA. Objetivo: Analisar a influência do polimorfismo I/D da ECA sobre a HPE após três diferentes intensidades de exercício em jovens normotensos e fisicamente ativos.MÉTODOS: Vinte e seis jovens saudáveis (DD = 11; ID/II = 15 realizaram uma sessão máxima de 1.600 metros, na pista de atletismo e outras três sessões experimentais (Sessão Moderada: 6% abaixo do limiar anaeróbio, Sessão Intensa: 6% acima do limiar anaeróbio e Sessão de Controle, com aferições prévias da PA, por 20 minutos e posteriores ao exercício por 60 minutos.RESULTADOS: Observou-se que o exercício moderado ocasionou HPE independentemente do grupo genotípico, sendo mais evidente para a pressão arterial sistólica nos momentos 45 minutos e 60 minutos (p ≤ 0,05. Verificou-se também que a característica gênica exerceu influência sobre a área abaixo da curva pressórica (p ≤ 0,005 sobre a pressão arterial diastólica, formada 1 hora após o exercício.CONCLUSÃO: Conclui-se que o exercício moderado ocasiona HPE em jovens normotensos e fisicamente ativos, independentemente do polimorfismo I/D no gene da ECA, sendo que esse polimorfismo exerce influência sobre a hipotensão diastólica, e os indivíduos portadores do alelo I apresentam maior decaimento da PA diastólica (PAD.

  18. Clarté des idées innées ?

    DEFF Research Database (Denmark)

    Schøsler, Jørn

    2013-01-01

    Der gives en analyse af begreberne 'evidens' og 'medfødte idéer' hos Descartes og Locke samt hos de franske oplysningsfilosoffer.......Der gives en analyse af begreberne 'evidens' og 'medfødte idéer' hos Descartes og Locke samt hos de franske oplysningsfilosoffer....

  19. La relevancia de los gastos de I+D. Estudio empírico en el sector del automóvil

    Directory of Open Access Journals (Sweden)

    Teresa duarte Atoche

    2012-07-01

    Resultado y conclusiones: Nuestros resultados muestran que los inversores consideran que los gastos de I+D corriente y los del ejercicio anterior no aportan valor añadido a las compañías, es decir, que los valoran como cualquier otro gasto del ejercicio y que, por tanto, no son relevantes para estimar el valor de mercado de las compañías que forman nuestra muestra.

  20. Transmisión experimental del virus de la encefalitis equina venezolana, subgrupo ID, por psorophora confinnis a ratones

    Directory of Open Access Journals (Sweden)

    Alberto Morales

    1983-06-01

    Full Text Available Se realizó un experimento con el objeto de investigar la capacidad del mosquito Psorophora confinnis para transmitir por picadura a ratones blanco-suizos de 21 días una cepa de virus de encefalitis equina venezolana, subgrupo ID. Cuando los mosquitos se alimentaron sobre hamster con altas viremias (7.5, 6.5 y 6.3 dex en 0.1 ml. de suero, los porcentajes de infección de los mosquitos y los de transmisión fueron altos. Sin embargo, cuando los mosquitos se alimentaron sobre Proechimys hendei con viremias bajas (1,4 y 2.6 dex en 0.1 ml. de suero el porcentaje de infección de los mosquitos fue muy bajo y no hubo transmisión. Cuando la viremia en el Proechimys fue de 4.4 dex en 0.1 ml. de suero, el porcentaje de infección de los mosquitos aumentó y hubo transmisión baja (9%. Los resultados sugieren que Psorophora confinnis es un mosquito que tiene un alto umbral de infección para EEV subgrupo ID.

  1. FcγRll: Characterisation of novel Fc receptor interactions and a new receptor form.

    OpenAIRE

    JESSICA CLAIRE ANANIA

    2018-01-01

    Leukocyte Fc receptors (FcR) bind to immunogloulins (Ig) to link the innate and humoral immune system to help balance the immune system and clear infections. We have characterised a novel FcR for IgG (FcγR) form, designated FcγRIIa3, which contains a 19 amino acid insert. This insert interacts with cytoskeletal structures allowing the receptor to be retained for longer periods of time at the cells surface upon activation, higher cell signalling which causes greater cellular activation. Theref...

  2. 29 CFR 1910.97 - Nonionizing radiation.

    Science.gov (United States)

    2010-07-01

    ... electromagnetic energy or in which the cross section of the body is smaller than the cross section of the incident... Warning Symbol (4) Scope. This section applies to all radiations originating from radio stations, radar... 29 Labor 5 2010-07-01 2010-07-01 false Nonionizing radiation. 1910.97 Section 1910.97 Labor...

  3. Improvement of Biodesulfurization Rate of Alginate Immobilized Rhodococcus erythropolis R1.

    Science.gov (United States)

    Derikvand, Peyman; Etemadifar, Zahra

    2014-03-01

    Sulfur oxides released from the burning of oil causes severe environmental pollution. The sulfur can be removed via the 4S pathway in biodesulfurization (BDS). Immobilization approaches have been developed to prevent cell contamination of oil during the BDS process. The encapsulation of Rhodococcus erythropolis R1 in calcium alginate beads was studied in order to enhance conversion of dibenzothiophene (DBT) to 2-hydroxy biphenyl (2-HBP) as the final product. Also the effect of different factors on the BDS process was investigated. Calcium alginate capsules were prepared using peristaltic pumps with different needle sizes to control the beads sizes. Scanning electron microscopy and flow cytometry methods were used to study the distribution and viability of encapsulated cells, respectively. Two non-ionic surfactants and also nano Ƴ-Al2O3were used with the ratio of 0.5% (v/v) and 1:5 (v/v) respectively to investigate their BDS efficiency. In addition, the effect of different bead sizes and different concentrations of sodium alginate in BDS activity was studied. The 2% (w/v) sodium alginate beads with 1.5mm size were found to be the optimum for beads stability and efficient 2-HBP production. The viability of encapsulated cells decreased by 12% after 20 h of desulfurization, compared to free cells. Adding the non-ionic surfactants markedly enhanced the rate of BDS, because of increasing mass transfer of DBT to the gel matrix. In addition, Span 80 was more effective than Tween 80. The nanoƳ-Al2O3 particles could increase BDS rate by up to two-folds greater than that of the control beads. The nano Ƴ-Al2O3 can improve the immobilized biocatalyst for excellent efficiency of DBT desulfurization. Also the BDS activity can be enhanced by setting the other explained factors at optimum levels.

  4. Importance of neonatal FcR in regulating the serum half-life of therapeutic proteins containing the Fc domain of human IgG1: a comparative study of the affinity of monoclonal antibodies and Fc-fusion proteins to human neonatal FcR.

    Science.gov (United States)

    Suzuki, Takuo; Ishii-Watabe, Akiko; Tada, Minoru; Kobayashi, Tetsu; Kanayasu-Toyoda, Toshie; Kawanishi, Toru; Yamaguchi, Teruhide

    2010-02-15

    The neonatal FcR (FcRn) binds to the Fc domain of IgG at acidic pH in the endosome and protects IgG from degradation, thereby contributing to the long serum half-life of IgG. To date, more than 20 mAb products and 5 Fc-fusion protein products have received marketing authorization approval in the United States, the European Union, or Japan. Many of these therapeutic proteins have the Fc domain of human IgG1; however, the serum half-lives differ in each protein. To elucidate the role of FcRn in the pharmacokinetics of Fc domain-containing therapeutic proteins, we evaluated the affinity of the clinically used human, humanized, chimeric, or mouse mAbs and Fc-fusion proteins to recombinant human FcRn by surface plasmon resonance analysis. The affinities of these therapeutic proteins to FcRn were found to be closely correlated with the serum half-lives reported from clinical studies, suggesting the important role of FcRn in regulating their serum half-lives. The relatively short serum half-life of Fc-fusion proteins was thought to arise from the low affinity to FcRn. The existence of some mAbs having high affinity to FcRn and a short serum half-life, however, suggested the involvement of other critical factor(s) in determining the serum half-life of such Abs. We further investigated the reason for the relatively low affinity of Fc-fusion proteins to FcRn and suggested the possibility that the receptor domain of Fc-fusion protein influences the structural environment of the FcRn binding region but not of the FcgammaRI binding region of the Fc domain.

  5. Diego Velázquez e os retratos de Felipe IV: A pintura Barroca e a idéia de tempo na sociedade espanhola do século XVII

    Directory of Open Access Journals (Sweden)

    Susana Aparecida da Silva

    2012-08-01

    Full Text Available Esta pesquisa reflete a respeito da possibilidade de se analisar a idéia de tempo na Espanha Barroca do século XVII através de cinco retratos feitos pelo pintor espanhol Diego Velázquez (1599-1660. Estes retratos são feitos após o período em que o pintor é admitido na corte de Felipe IV da Espanha (1605-1665 como pintor oficial. As fontes visuais selecionadas para esta pesquisa no sentido de possibilitar a análise da idéia de tempo são retratos do rei feitos por Diego Velázquez e representam o rei jovem e posteriormente envelhecido. Acredita-se que a idéia de tempo para Velázquez tenha estreita relação com a sociedade barroca espanhola do século XVII na qual ele está inserido. Neste sentido, as representações do poder e do envelhecimento do monarca possíveis de serem vistas nas pinturas de Velázquez contribuem para se pensar a concepção de tempo do artista e da sociedade espanhola daquele período

  6. The neonatal Fc receptor, FcRn, as a target for drug delivery and therapy.

    Science.gov (United States)

    Sockolosky, Jonathan T; Szoka, Francis C

    2015-08-30

    Immunoglobulin G (IgG)-based drugs are arguably the most successful class of protein therapeutics due in part to their remarkably long blood circulation. This arises from IgG interaction with the neonatal Fc receptor, FcRn. FcRn is the central regulator of IgG and albumin homeostasis throughout life and is increasingly being recognized as an important player in autoimmune disease, mucosal immunity, and tumor immune surveillance. Various engineering approaches that hijack or disrupt the FcRn-mediated transport pathway have been devised to develop long-lasting and non-invasive protein therapeutics, protein subunit vaccines, and therapeutics for treatment of autoimmune and infectious disease. In this review, we highlight the diverse biological functions of FcRn, emerging therapeutic opportunities, as well as the associated challenges of targeting FcRn for drug delivery and disease therapy. Copyright © 2015 Elsevier B.V. All rights reserved.

  7. 40 CFR 97.3 - Measurements, abbreviations, and acronyms.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Measurements, abbreviations, and acronyms. 97.3 Section 97.3 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR... electrical. NOX-nitrogen oxides. O2-oxygen. ton-2000 pounds. ...

  8. Sistemas de gestión de la calidad y desempeño: importancia de las prácticas de gestión del conocimiento y de I+D

    OpenAIRE

    Camisón Zornoza, César; Boronat Navarro, Montserrat; Villar López, Ana; Puig Denia, Alba

    2009-01-01

    En este trabajo se estudia la influencia de la implantación de sistemas de gestión de la calidad en la adopción de prácticas de gestión del conocimiento y de la gestión de la I+D y, a su vez, los efectos individuales y conjuntos de los distintos tipos de prácticas de gestión sobre el desempeño. A través de un modelo de ecuaciones estructurales y utilizando la metodología Partial Least Squares (PLS), se demuestra que los sistemas de gestión de la calidad integrados con la gestión del conocimie...

  9. 40 CFR 97.140 - State trading budgets.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false State trading budgets. 97.140 Section...) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR NOX Allowance Allocations § 97.140 State trading budgets. The State trading budgets for annual allocations of CAIR NOX allowances...

  10. 31 CFR 9.7 - Conduct of investigation.

    Science.gov (United States)

    2010-07-01

    ... 31 Money and Finance: Treasury 1 2010-07-01 2010-07-01 false Conduct of investigation. 9.7 Section 9.7 Money and Finance: Treasury Office of the Secretary of the Treasury EFFECTS OF IMPORTED ARTICLES... Secretary or his designee may also request further data from other sources through the use of questionnaires...

  11. 40 CFR 97.340 - State trading budgets.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false State trading budgets. 97.340 Section...) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR NOX Ozone Season Allowance Allocations § 97.340 State trading budgets. (a) Except as provided in paragraph (b) of this section, the State...

  12. Field flow fractionation for assessing neonatal Fc receptor and Fcγ receptor binding to monoclonal antibodies in solution.

    Science.gov (United States)

    Pollastrini, Joey; Dillon, Thomas M; Bondarenko, Pavel; Chou, Robert Y-T

    2011-07-01

    Analysis of the strength and stoichiometry of immunoglobulin G (IgG) binding to neonatal Fc receptor (FcRn) and Fcγ receptor (FcγR) is important for evaluating the pharmacokinetics and effector functions of therapeutic monoclonal antibody (mAb) products, respectively. The current standard for assessing FcγR and FcRn binding is composed of cell-based and surface plasmon resonance (SPR) assays. In this work, asymmetrical flow field flow fractionation (AF4) was evaluated to establish the true stoichiometry of IgG binding in solution. AF4 and liquid chromatography-mass spectrometry (LC-MS) were applied to directly observe IgG/FcγR and IgG/FcRn complexes, which were not observed using nonequilibrium size exclusion chromatography (SEC) analysis. Human serum albumin (HSA), an abundant component of human blood and capable of binding FcRn, was studied in combination with FcRn and IgG. AF4 demonstrated that the majority of large complexes of IgG/FcRn/HSA were at an approximate 1:2:1 molar ratio. In addition, affinity measurements of the complex were performed in the sub-micromolar affinity range. A significant decrease in binding was detected for IgG molecules with increased oxidation in the Fc region. AF4 was useful in detecting weak binding between full-length IgG/Fc fragments and Fc receptors and the effect of chemical modifications on binding. AF4 is a useful technique in the assessment of mAb product quality attributes. Copyright © 2011 Elsevier Inc. All rights reserved.

  13. Biodesulfurization of coals of different rank: Effect on combustion behavior

    Energy Technology Data Exchange (ETDEWEB)

    Rubiera, F.; Arenillas, A.; Fuente, E.; Pis, J.J. [CSIC, Oviedo (Spain). Inst. Nacional del Carbon; Marteinz, O.; Moran, A. [Univ. de Leon (Spain). Escuela de Ingenieria Tecnica Minera

    1999-02-01

    The emission of sulfur oxides during the combustion of coal is one of the causes, among other air pollution problems, of acid rain. The contribution of coal as the mainstay of power production will be determined by whether its environmental performance is equal or superior to other supply options. In this context, desulfurization of coal before combustion by biological methods was studied. Four Spanish high-sulfur content coals of different rank were inoculated with bacteria isolated from mine-drainage waters and with naturally occurring bacteria inherent in the coals to be treated. Higher levels of desulfurization were obtained in the case of the samples treated with their own accompanying bacteria and when aeration was increased. All the samples were amenable to the biodepyritization processes. However, it is of little value to achieve large sulfur reductions if a decrease in coal combustion performance is obtained in the process. For this reason, a comparison was made between the combustibility characteristics of the original coals and those of the biodesulfurized samples. Results indicated that combustibility was not substantially modified by the overall biological treatment. The benefits of reduced sulfur emissions into the atmosphere ought to be taken into account as part of the general evaluation of the processes.

  14. A ingestão de cafeína não melhora o desempenho de atletas de judô The intake of caffeine does not improve the performance of judo

    Directory of Open Access Journals (Sweden)

    Lucas Adriano Pereira

    2010-09-01

    Full Text Available O objetivo do presente estudo foi investigar os efeitos ergogênicos da ingestão de cafeína, sobre o desempenho motor de atletas de judô feminino. Participaram do estudo 13 atletas do sexo feminino (17,6 ± 1,6 anos, 58,3 ± 11,4 kg, 162 ± 4,1 cm, 22,5 ± 4 kg/m², vinculadas à Federação Paranaense de Judô, por pelo menos dois anos. O desempenho motor foi avaliado mediante a utilização do Special Judô Fitness Test (SJFT, a partir do qual foi analisado o número de arremessos em cada bloco, número total de arremessos, frequência cardíaca (FC final e de recuperação e o índice no SJFT. Os sujeitos foram testados em duas condições, após ingestão de cafeína (6 mg.kg-1 ou placebo (dextrose 60 minutos antes dos testes, em um delineamento duplo-cego, cruzado. O número de arremessos em cada bloco não diferiu entre as condições cafeína (CAF e placebo (PL (Bloco A: 4,53 ± 0,51 CAF e 4,46 ± 0,51 PL; Bloco B: 8,3 ± 0,63 CAF e 8,23 ± 0,72 PL; Bloco C: 7,23 ± 0,59 CAF e 7,46 ± 0,77 PL, bem como o número total de arremessos (20,07 ± 1,18 CAF e 20,15 ± 1,67 PL, FC (Final: 190,3 ± 9,63 bpm CAF e 190,69 ± 9,19 bpm PL; Recuperação: 162,07 ± 13,78 bpm CAF e 164,3 ± 9,64 bpm PL e índice no SJFT (17,59 ± 1,4 CAF e 17,75 ± 1,98 PL. A ingestão de cafeína não melhorou o desempenho durante atividade de alta intensidade e curta duração em lutadores de judô.The objective of this study was to investigate the ergogenic effects of caffeine on motor performance of judo female athletes. Thirteen female athletes (17.6 ± 1.6 years, 58.3 ± 11.4 kg, 162 ± 4.1 cm, 22.5 ± 4 kg/m², registered in the State Federation of Judo for at least two years, participated in this study. The motor performance was assessed using the Special Judo Fitness Test (SJFT, from which was considered the number of throws in each block, the total number of throws, recovery and final heart rate (HR and final score in SJFT. The subjects were tested in two

  15. Enjeux esthético-idéologiques du stéréotype dans les derniers romans de Mongo Beti

    Directory of Open Access Journals (Sweden)

    J.-J. Rousseau Tandia Mouafou

    2009-12-01

    Full Text Available Cette réflexion se propose d’actualiser le concept de stéréotype, habituellement réservé aux sciences sociales, dans l’exploration du texte littéraire. Nous observons ainsi que l’idée de fixité au cœur de la problématique du stéréotype est un concept opératoire qui permet de lire autrement le récit sur le triple plan linguistique, thématico-narratif et idéologique. Les valeurs textuelles que ce concept permet de mettre en évidence portent à croire que notre corpus apparaît, dans une perspective sociocritique, comme une métaphore des sociétés africaines post-coloniales.

  16. Structural characterization of the Man5 glycoform of human IgG3 Fc

    Energy Technology Data Exchange (ETDEWEB)

    Shah, Ishan S.; Lovell, Scott; Mehzabeen, Nurjahan; Battaile, Kevin P.; Tolbert, Thomas J. (Kansas); (HWMRI)

    2017-12-01

    Immunoglobulin G (IgG) consists of four subclasses in humans: IgG1, IgG2, IgG3 and IgG4, which are highly conserved but have unique differences that result in subclass-specific effector functions. Though IgG1 is the most extensively studied IgG subclass, study of other subclasses is important to understand overall immune function and for development of new therapeutics. When compared to IgG1, IgG3 exhibits a similar binding profile to Fcγ receptors and stronger activation of complement. All IgG subclasses are glycosylated at N297, which is required for Fcγ receptor and C1q complement binding as well as maintaining optimal Fc conformation. We have determined the crystal structure of homogenously glycosylated human IgG3 Fc with a GlcNAc2Man5 (Man5) high mannose glycoform at 1.8 Å resolution and compared its structural features with published structures from the other IgG subclasses. Although the overall structure of IgG3 Fc is similar to that of other subclasses, some structural perturbations based on sequence differences were revealed. For instance, the presence of R435 in IgG3 (and H435 in the other IgG subclasses) has been implicated to result in IgG3-specific properties related to binding to protein A, protein G and the neonatal Fc receptor (FcRn). The IgG3 Fc structure helps to explain some of these differences. Additionally, protein-glycan contacts observed in the crystal structure appear to correlate with IgG3 affinity for Fcγ receptors as shown by binding studies with IgG3 Fc glycoforms. Finally, this IgG3 Fc structure provides a template for further studies aimed at engineering the Fc for specific gain of function.

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

    Energy Technology Data Exchange (ETDEWEB)

    Esch, R.A.

    1998-03-12

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

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

    International Nuclear Information System (INIS)

    Esch, R.A.

    1998-01-01

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

  19. Sistema de información de apoyo en la calidad de atención de la Ugel 07, San Borja, 2016

    OpenAIRE

    Sarmiento Bances, Teresa

    2016-01-01

    En la investigación titulada: Sistema de información de apoyo en la calidad de atención de la Ugel 07, San Borja, 2016, el objetivo general de la investigación fue Determinar: La influencia del sistema de información de apoyo en la calidad de atención de la UGEL 07, San Borja, 2016. El tipo de investigación es correlacional - causal, el nivel de investigación es descriptivo y el diseño de la investigación es no experimental y el enfoque es cuantitativo. La muestra estuvo con...

  20. Revisiting Field Capacity (FC: variation of definition of FC and its estimation from pedotransfer functions

    Directory of Open Access Journals (Sweden)

    Theophilo Benedicto Ottoni Filho

    2014-12-01

    Full Text Available Taking into account the nature of the hydrological processes involved in in situ measurement of Field Capacity (FC, this study proposes a variation of the definition of FC aiming not only at minimizing the inadequacies of its determination, but also at maintaining its original, practical meaning. Analysis of FC data for 22 Brazilian soils and additional FC data from the literature, all measured according to the proposed definition, which is based on a 48-h drainage time after infiltration by shallow ponding, indicates a weak dependency on the amount of infiltrated water, antecedent moisture level, soil morphology, and the level of the groundwater table, but a strong dependency on basic soil properties. The dependence on basic soil properties allowed determination of FC of the 22 soil profiles by pedotransfer functions (PTFs using the input variables usually adopted in prediction of soil water retention. Among the input variables, soil moisture content θ (6 kPa had the greatest impact. Indeed, a linear PTF based only on it resulted in an FC with a root mean squared residue less than 0.04 m³ m-3 for most soils individually. Such a PTF proved to be a better FC predictor than the traditional method of using moisture content at an arbitrary suction. Our FC data were compatible with an equivalent and broader USA database found in the literature, mainly for medium-texture soil samples. One reason for differences between FCs of the two data sets of fine-textured soils is due to their different drainage times. Thus, a standardized procedure for in situ determination of FC is recommended.

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

    International Nuclear Information System (INIS)

    Esch, R.A.

    1997-01-01

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

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

    Energy Technology Data Exchange (ETDEWEB)

    Esch, R.A.

    1997-11-13

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

  3. Role of activatory Fc gamma RI and Fc gamma RIII and inhibitory Fc gamma RII in inflammation and cartilage destruction during experimental antigen-induced arthritis.

    NARCIS (Netherlands)

    Lent, P.L.E.M. van; Nabbe, K.C.A.M.; Blom, A.B.; Holthuysen, A.E.M.; Sloetjes, A.W.; Putte, L.B.A. van de; Verbeek, S.; Berg, W.B. van den

    2001-01-01

    IgG-containing immune complexes, which are found in most RA joints, communicate with hematopoietic cells using three classes of Fc receptors(Fc gamma RI, -II, -III). In a previous study we found that if a chronic T-cell-mediated antigen-induced arthritis (AIA) was elicited in knee joints of FcR

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

    International Nuclear Information System (INIS)

    Steen, F.H.

    1997-01-01

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

  5. Rapid desensitization of mice with anti-FcγRIIb/FcγRIII mAb safely prevents IgG-mediated anaphylaxis.

    Science.gov (United States)

    Khodoun, Marat V; Kucuk, Zeynep Yesim; Strait, Richard T; Krishnamurthy, Durga; Janek, Kevin; Clay, Corey D; Morris, Suzanne C; Finkelman, Fred D

    2013-12-01

    Stimulatory IgG receptors (FcγRs) on bone marrow-derived cells contribute to the pathogenesis of several autoimmune and inflammatory disorders. Monoclonal antibodies that block FcγRs might suppress these diseases, but they can induce anaphylaxis. We wanted to determine whether a rapid desensitization approach can safely suppress IgG/FcγR-mediated anaphylaxis. Mice were injected with serially increasing doses of 2.4G2, a rat mAb that blocks the inhibitory FcγR, FcγRIIb, and the stimulatory receptor, FcγRIII. Rectal temperature was used to detect the development of anaphylaxis. Passive and active IgG-mediated anaphylaxis were evaluated in mice that had been rapidly desensitized with 2.4G2 or mock-desensitized in mice in which monocyte/macrophages, basophils, or neutrophils had been depleted or desensitized and in mice in which FcγRI, FcγRIII, and/or FcγRIV had been deleted or blocked. Rapid desensitization with 2.4G2 prevented 2.4G2-induced shock and completely suppressed IgG-mediated anaphylaxis. Rapid desensitization of ovalbumin-sensitized mice with 2.4G2 was safer and more effective than rapid desensitization with ovalbumin. 2.4G2 treatment completely blocked FcγRIII and removed most FcγRI and FcγRIV from nucleated peripheral blood cells. Because IgG(2a)-mediated anaphylaxis was partially FcγRI and FcγRIV dependent, the effects of 2.4G2 on FcγRI and FcγRIV were probably crucial for its complete inhibition of IgG(2a)-mediated anaphylaxis. IgG(2a)-mediated anaphylaxis was partially inhibited by depletion or desensitization of monocyte/macrophages, basophils, or neutrophils. IgG-mediated anaphylaxis can be induced by ligation of FcγRI, FcγRIII, or FcγRIV on monocycte/macrophages, basophils, or neutrophils and can be safely suppressed by rapid desensitization with anti-FcγRII/RIII mAb. A similar approach may safely suppress other FcγR-dependent immunopathology. Published by Mosby, Inc.

  6. Determinantes de la inversión en I+D: un análisis empírico en empresas europeas de software y servicios informáticos

    OpenAIRE

    Fernández López, Javier

    2013-01-01

    Estudio empírico de los factores determinantes de la inversión en I+D en empresas europeas de software y servicios informáticos entre 2004-2010 Economía Financiera y Contabilidad Máster en Contabilidad y Gestión Financiera

  7. Improvement of Biodesulfurization Rate of Alginate Immobilized Rhodococcus erythropolis R1

    Science.gov (United States)

    Derikvand, Peyman; Etemadifar, Zahra

    2014-01-01

    Background: Sulfur oxides released from the burning of oil causes severe environmental pollution. The sulfur can be removed via the 4S pathway in biodesulfurization (BDS). Immobilization approaches have been developed to prevent cell contamination of oil during the BDS process. Objectives: The encapsulation of Rhodococcus erythropolis R1 in calcium alginate beads was studied in order to enhance conversion of dibenzothiophene (DBT) to 2-hydroxy biphenyl (2-HBP) as the final product. Also the effect of different factors on the BDS process was investigated. Materials and Methods: Calcium alginate capsules were prepared using peristaltic pumps with different needle sizes to control the beads sizes. Scanning electron microscopy and flow cytometry methods were used to study the distribution and viability of encapsulated cells, respectively. Two non-ionic surfactants and also nano Ƴ-Al2O3were used with the ratio of 0.5% (v/v) and 1:5 (v/v) respectively to investigate their BDS efficiency. In addition, the effect of different bead sizes and different concentrations of sodium alginate in BDS activity was studied. Results: The 2% (w/v) sodium alginate beads with 1.5mm size were found to be the optimum for beads stability and efficient 2-HBP production. The viability of encapsulated cells decreased by 12% after 20 h of desulfurization, compared to free cells. Adding the non-ionic surfactants markedly enhanced the rate of BDS, because of increasing mass transfer of DBT to the gel matrix. In addition, Span 80 was more effective than Tween 80. The nanoƳ-Al2O3 particles could increase BDS rate by up to two-folds greater than that of the control beads. Conclusions: The nano Ƴ-Al2O3 can improve the immobilized biocatalyst for excellent efficiency of DBT desulfurization. Also the BDS activity can be enhanced by setting the other explained factors at optimum levels. PMID:25147685

  8. Fc-fusion Proteins in Therapy: An Updated View.

    Science.gov (United States)

    Jafari, Reza; Zolbanin, Naime M; Rafatpanah, Houshang; Majidi, Jafar; Kazemi, Tohid

    2017-01-01

    Fc-fusion proteins are composed of Fc region of IgG antibody (Hinge-CH2-CH3) and a desired linked protein. Fc region of Fc-fusion proteins can bind to neonatal Fc receptor (FcRn) thereby rescuing it from degradation. The first therapeutic Fc-fusion protein was introduced for the treatment of AIDS. The molecular designing is the first stage in production of Fc-fusion proteins. The amino acid residues in the Fc region and linked protein are very important in the bioactivity and affinity of the fusion proteins. Although, therapeutic monoclonal antibodies are the top selling biologics but the application of therapeutic Fc-fusion proteins in clinic is in progress and among these medications Etanercept is the most effective in therapy. At present, eleven Fc-fusion proteins have been approved by FDA. There are novel Fc-fusion proteins which are in pre-clinical and clinical development. In this article, we review the molecular and biological characteristics of Fc-fusion proteins and then further discuss the features of novel therapeutic Fc-fusion proteins. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  9. Resposta cronotrópica ao teste anaeróbio máximo de corrida - MART

    Directory of Open Access Journals (Sweden)

    Flávio Areal Lemos

    2013-06-01

    Full Text Available INTRODUÇÃO: A frequência cardíaca (FC no teste anaeróbio máximo de corrida (MART expressa o comportamento autonômico cardíaco em exercício. Ainda não foi investigado se tais respostas cronotrópicas apresentam associação com o desempenho aeróbio e anaeróbio. OBJETIVOS: Descrever a resposta cronotrópica cardíaca durante o MART nos segundos iniciais de estímulo (FC ON e de recuperação (FC OFF e estabelecer a associação entre as variáveis cronotrópicas com o desempenho aeróbio e anaeróbio. MÉTODOS: Foram voluntários 13 homens assintomáticos e fisicamente ativos, com 25,1 ± 4,9 anos, 76,8 ± 12,5 kg, 178,4 ± 9,0 cm e 50,6 ± 4,1 mL×kg‑1×min‑1. Na primeira visita, após a anamnese e medidas antropométricas, foi realizado um teste cardiopulmonar de exercício (TCPE com monitoração direta dos gases expirados. Na segunda visita, foi feita uma familiarização ao MART e na terceira, o teste de MART conduzido até a exaustão. RESULTADOS: A FC de recuperação (58 ± 20 bpm comparada à FC de pico alcançada no primeiro e no último estágio de MART (39 ± 14 bpm apresentou maior inclinação, resultando em maior amplitude de variação ao longo do teste, caracterizando diferenças significativas (P = 0,0017. A FC ON apresentou entre o momento inicial, meio e final do MART diferenças significativas (inicial versus final, p = 0,007. Para FC OFF foram encontradas diferenças significativas do início com o meio (p = 0,035 e do início com o final (p = 0,005 do teste. As correlações entre as variáveis cronotrópicas e de desempenho não apresentaram significância estatística (P < 0,05, assim como com as variáveis de desempenho. CONCLUSÃO: O MART parece ser um modelo de sobrecargas fisiológicas adequado para investigação da modulação autonômica cardíaca. Observou-se atuação do sistema parassimpático mesmo em cargas supramáximas até o final do teste.

  10. « L'idée de développement culturel : esquisse pour une psychanalyse »

    Directory of Open Access Journals (Sweden)

    Fernand Dumont

    2007-06-01

    Full Text Available Texte intégral de l’article de Fernand Dumont paru dans la revue Sociologie et Sociétés, vol. XI, n°1, 1979, précédé d’une introduction par Daniel Mercure. Dans cet article, l'auteur discute en profondeur de la notion de développement culturel en se posant les questions suivantes : de quelle culture s'agit-il lorsque l'on parle de développement culturel ? Et pourquoi le développement ? C’est parce que l'auteur plaide pour la primauté de la culture dans l'observation sociale qu'il se montre très critique envers les idées reçues.Unabridged version of the article of Fernand Dumont about « L’idée de développement culturel : esquisse pour une psychanalyse » (« The idea of cultural development : outline of a psychoanalysis », published in Sociologie et Sociétés in 1979. It’s preceded of an introduction by Daniel Mercure. In this paper, the author discusses in depth the notion of cultural development, asking himself the following questions : with which culture are we dealing when we speak of cultural development ? And why development ? Showing himself very critical of accepted ideas, the author pleads the case for the primacy of culture in the process of social observationTexto integral del artículo de Fernand Dumont, « L'idée de développement culturel : esquisse pour une psychanalyse » publicado en la revista Sociologie et Sociétés, vol. XI, n°1, 1979. Prólogo de Daniel Mercure. En este artículo, el autor profudiza la noción de desarrollo cultural y se plantea las preguntas siguientes : de que cultura se trata cuando se habla de desarrollo cultural ? y por qué el desarrollo ? El autor se déclara favorable a la primacía de la cultura en la observación social y es por esta razón que se muestra muy crítico hacia las ideas establecidas.

  11. 37 CFR 1.97 - Filing of information disclosure statement.

    Science.gov (United States)

    2010-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2010-07-01 2010-07-01 false Filing of information disclosure statement. 1.97 Section 1.97 Patents, Trademarks, and Copyrights UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE GENERAL RULES OF PRACTICE IN PATENT CASES National Processing...

  12. Natural form of noncytolytic flexible human Fc as a long-acting carrier of agonistic ligand, erythropoietin.

    Directory of Open Access Journals (Sweden)

    Se Jin Im

    Full Text Available Human IgG1 Fc has been widely used as a bioconjugate, but exhibits shortcomings, such as antibody- and complement-mediated cytotoxicity as well as decreased bioactivity, when applied to agonistic proteins. Here, we constructed a nonimmunogenic, noncytolytic and flexible hybrid Fc (hyFc consisting of IgD and IgG4, and tested its function using erythropoietin (EPO conjugate, EPO-hyFc. Despite low amino acid homology (20.5% between IgD Fc and IgG4 Fc, EPO-hyFc retained "Y-shaped" structure and repeated intravenous administrations of EPO-hyFc into monkeys did not generate EPO-hyFc-specific antibody responses. Furthermore, EPO-hyFc could not bind to FcγR I and C1q in contrast to EPO-IgG1 Fc. In addition, EPO-hyFc exhibited better in vitro bioactivity and in vivo bioactivity in rats than EPO-IgG1 Fc, presumably due to the high flexibility of IgD. Moreover, the mean serum half-life of EPO-hyFc(H, a high sialic acid content form of EPO-hyFc, was approximately 2-fold longer than that of the heavily glycosylated EPO, darbepoetin alfa, in rats. More importantly, subcutaneous injection of EPO-hyFc(H not only induced a significantly greater elevation of serum hemoglobin levels than darbepoetin alfa in both normal rats and cisplatin-induced anemic rats, but also displayed a delayed time to maximal serum level and twice final area-under-the-curve (AUC(last. Taken together, hyFc might be a more attractive Fc conjugate for agonistic proteins/peptides than IgG1 Fc due to its capability to elongate their half-lives without inducing host effector functions and hindering bioactivity of fused molecules. Additionally, a head-to-head comparison demonstrated that hyFc-fusion strategy more effectively improved the in vivo bioactivity of EPO than the hyperglycosylation approach.

  13. Natural form of noncytolytic flexible human Fc as a long-acting carrier of agonistic ligand, erythropoietin.

    Science.gov (United States)

    Im, Se Jin; Yang, Sang In; Yang, Se Hwan; Choi, Dong Hoon; Choi, So Young; Kim, Hea Sook; Jang, Do Soo; Jin, Kyeong Sik; Chung, Yo-Kyung; Kim, Seung-Hee; Paik, Sang Hoon; Park, Yoo Chang; Chung, Moon Koo; Kim, Yong Bum; Han, Kang-Hyun; Choi, Kwan Yong; Sung, Young Chul

    2011-01-01

    Human IgG1 Fc has been widely used as a bioconjugate, but exhibits shortcomings, such as antibody- and complement-mediated cytotoxicity as well as decreased bioactivity, when applied to agonistic proteins. Here, we constructed a nonimmunogenic, noncytolytic and flexible hybrid Fc (hyFc) consisting of IgD and IgG4, and tested its function using erythropoietin (EPO) conjugate, EPO-hyFc. Despite low amino acid homology (20.5%) between IgD Fc and IgG4 Fc, EPO-hyFc retained "Y-shaped" structure and repeated intravenous administrations of EPO-hyFc into monkeys did not generate EPO-hyFc-specific antibody responses. Furthermore, EPO-hyFc could not bind to FcγR I and C1q in contrast to EPO-IgG1 Fc. In addition, EPO-hyFc exhibited better in vitro bioactivity and in vivo bioactivity in rats than EPO-IgG1 Fc, presumably due to the high flexibility of IgD. Moreover, the mean serum half-life of EPO-hyFc(H), a high sialic acid content form of EPO-hyFc, was approximately 2-fold longer than that of the heavily glycosylated EPO, darbepoetin alfa, in rats. More importantly, subcutaneous injection of EPO-hyFc(H) not only induced a significantly greater elevation of serum hemoglobin levels than darbepoetin alfa in both normal rats and cisplatin-induced anemic rats, but also displayed a delayed time to maximal serum level and twice final area-under-the-curve (AUC(last)). Taken together, hyFc might be a more attractive Fc conjugate for agonistic proteins/peptides than IgG1 Fc due to its capability to elongate their half-lives without inducing host effector functions and hindering bioactivity of fused molecules. Additionally, a head-to-head comparison demonstrated that hyFc-fusion strategy more effectively improved the in vivo bioactivity of EPO than the hyperglycosylation approach.

  14. Cross-Linking GPVI-Fc by Anti-Fc Antibodies Potentiates Its Inhibition of Atherosclerotic Plaque- and Collagen-Induced Platelet Activation

    Directory of Open Access Journals (Sweden)

    Janina Jamasbi, RPh

    2016-04-01

    Full Text Available To enhance the antithrombotic properties of recombinant glycoprotein VI fragment crystallizable (GPVI-Fc, the authors incubated GPVI-Fc with anti-human Fc antibodies to cross-link the Fc tails of GPVI-Fc. Cross-linking potentiated the inhibition of human plaque- and collagen-induced platelet aggregation by GPVI-Fc under static and flow conditions without increasing bleeding time in vitro. Cross-linking with anti-human-Fc Fab2 was even superior to anti-human-Fc immunoglobulin G (IgG. Advanced optical imaging revealed a continuous sheath-like coverage of collagen fibers by cross-linked GPVI-Fc complexes. Cross-linking of GPVI into oligomeric complexes provides a new, highly effective, and probably safe antithrombotic treatment as it suppresses platelet GPVI-plaque interaction selectively at the site of acute atherothrombosis.

  15. The neonatal Fc receptor (FcRn) binds independently to both sites of the IgG homodimer with identical affinity.

    Science.gov (United States)

    Abdiche, Yasmina Noubia; Yeung, Yik Andy; Chaparro-Riggers, Javier; Barman, Ishita; Strop, Pavel; Chin, Sherman Michael; Pham, Amber; Bolton, Gary; McDonough, Dan; Lindquist, Kevin; Pons, Jaume; Rajpal, Arvind

    2015-01-01

    The neonatal Fc receptor (FcRn) is expressed by cells of epithelial, endothelial and myeloid lineages and performs multiple roles in adaptive immunity. Characterizing the FcRn/IgG interaction is fundamental to designing therapeutic antibodies because IgGs with moderately increased binding affinities for FcRn exhibit superior serum half-lives and efficacy. It has been hypothesized that 2 FcRn molecules bind an IgG homodimer with disparate affinities, yet their affinity constants are inconsistent across the literature. Using surface plasmon resonance biosensor assays that eliminated confounding experimental artifacts, we present data supporting an alternate hypothesis: 2 FcRn molecules saturate an IgG homodimer with identical affinities at independent sites, consistent with the symmetrical arrangement of the FcRn/Fc complex observed in the crystal structure published by Burmeister et al. in 1994. We find that human FcRn binds human IgG1 with an equilibrium dissociation constant (KD) of 760 ± 60 nM (N = 14) at 25°C and pH 5.8, and shows less than 25% variation across the other human subtypes. Human IgG1 binds cynomolgus monkey FcRn with a 2-fold higher affinity than human FcRn, and binds both mouse and rat FcRn with a 10-fold higher affinity than human FcRn. FcRn/IgG interactions from multiple species show less than a 2-fold weaker affinity at 37°C than at 25°C and appear independent of an IgG's variable region. Our in vivo data in mouse and rat models demonstrate that both affinity and avidity influence an IgG's serum half-life, which should be considered when choosing animals, especially transgenic systems, as surrogates.

  16. Immunoglobulin Fc receptors in clinical strains of Staphylococcus aureus do not confer resistance to Phagocytosis in an in vitro assay Los receptores Fc para inmunoglobulinas en cepas clínicas de Staphylococcus aureus no confieren resistencia a la fagocitosis in vitro

    Directory of Open Access Journals (Sweden)

    Benito VEGA

    1999-05-01

    Full Text Available Staphylococcus aureus binds Immunoglobulin G (IgG on its external surface due to the presence of specific receptors for the Fc domain of this immunoglobulin. This mechanism represents a kind of camouflage against phagocytic cells. In order to confirm that possibility an in vitro evaluation of the phagocytic activity of leukocytes polymorpho-nuclear (PMN against strains of Staphylococcus aureus was done, comparing 18 strains isolated from clinical samples and 16 from healthy individuals. The presence of Fc receptors was evaluated by haemagglutination (HA with erythrocytes group A after incubation of the strains with IgG anti blood group A. Phagocytosis of S. aureus was carried out by mixing live bacteria with a suspension of human PMN and incubating at 37 °C for 1 h; survivors were counted as colony forming units by plating. The strains from clinical specimens showed higher HA than those from healthy individuals (p = 0.01; but the former were killed more efficiently than the latter (80-90% and 40%, respectively. It is may be possible that S. aureus showed different behavior in vivo, where could express other virulence factors to prevent the action of phagocytes.Staphylococcus aureus liga inmunoglobulinas G (IgG a su superficie externa debido a la presencia de receptores para el dominio Fc de esas inmunoglobulinas. Este mecanismo representa una clase de camuflage contra células fagocíticas. Para confirmar tal posibilidad se realizó una evaluación in vitro de la actividad fagocítica de leucocitos polimorfonucleares (PMN contra cepas de Staphylococcus aureus, comparando 18 cepas aisladas de casos clínicos y 16 de individuos sanos. La presencia de receptores fue evaluada por hemaglutinación (HA con eritrocitos grupo A luego que las cepas fueron incubadas con IgG anti grupo sanguíneo A. La fagocitosis de S. aureus fue realizada mezclando células vivas con una suspensión de PMN e incubada a 37 °C por una hora; las bacterias sobrevivientes

  17. 40 CFR 97.323 - CAIR permit contents and term.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false CAIR permit contents and term. 97.323 Section 97.323 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... authority, as necessary to facilitate coordination of the renewal of the CAIR permit with issuance, revision...

  18. Commissioning of the IDS Neutron Detector and $\\beta$-decay fast-timing studies at IDS

    CERN Document Server

    Piersa, Monika

    2016-01-01

    The following report describes my scientific activities performed during the Summer Student Programme at ISOLDE. The main part of my project was focused on commissioning the neutron detector dedicated to nuclear decay studies at ISOLDE Decay Station (IDS). I have participated in all the steps needed to make it operational for the IS609 experiment. In the testing phase, we obtained expected detector response and calibrations confirmed its successful commissioning. The detector was mounted in the desired geometry at IDS and used in measurements of the beta-delayed neutron emission of $^8$He. After completing aforementioned part of my project, I became familiar with the fast-timing method. This technique was applied at IDS in the IS610 experiment performed in June 2016 to explore the structure of neutron-rich $^{130-134}$Sn nuclei. Since the main part of my PhD studies will be the analysis of data collected in this experiment, the second part of my project was dedicated to acquiring knowledge about technical de...

  19. Condutividade e teste quantitativo coulométrico na triagem neonatal para fibrose cística

    Directory of Open Access Journals (Sweden)

    Mouseline Torquato Domingos

    2015-12-01

    Full Text Available Resumo Objetivo Comparar os resultados obtidos no teste do suor pelo método da condutividade e a dosagem coulométrica de cloreto no suor em recém0nascidos (RN suspeitos da triagem neonatal para fibrose cística (FC. Métodos O teste do suor foi feito simultaneamente pelos dois métodos em crianças com e sem FC. Os valores de corte para confirmar FC foram na condutividade > 50 mmol/L e no teste coulométrico > 60 mmol/L. Resultados Fizeram o teste do suor por condutividade e dosagem coulométrica simultaneamente 444 RN sem FC (185 do sexo masculino, 234 do feminino e 24 não informado e obtiveram resultado mediano de 32 mmol/L e 12 mmol/L respectivamente. Para os noventa RN com FC os valores medianos de condutividade e dosagem coulométrica foram 108 mmol/L e 97 mmol/L respectivamente. O índice de falso positivo para condutividade foi de 16,7% e em todos os pacientes FC foi superior a 50 mmol/L, o que confere ao método 100% de sensibilidade (IC 95% = 93,8 a 97,8, especificidade de 96,2% (IC 95% = 93,8 a 97,8, valor preditivo positivo 83,3 (IC 95% = 74,4 a 91,1, valor preditivo negativo 100% (IC 95% = 90,5 a 109,4 e acurácia 9,8%. A correlação entre os métodos foi de r = 0,97 (p > 0,001.O melhor valor de corte sugerido foi de 69,0 mmol/L, coeficiente de kappa = 0,89. Conclusão O teste da condutividade apresentou excelente correlação com o quantitativo coulométrico, alta sensibilidade e especificidade e pode ser usado no diagnóstico da FC em crianças detectadas pela triagem neonatal.

  20. A difusão do Priscilianismo pela Gallaecia: o testemunho de Idácio de Chaves * The diffusion of Priscillianism for through Gallaecia: the testimony of Hydatius of Chaves

    Directory of Open Access Journals (Sweden)

    DANILO MEDEIROS GAZZOTTI

    2012-05-01

    Full Text Available O presente artigo tem o intuito de realizar uma análise da crônica do bispo Idácio de Chaves. Esse episcopal era um fiel seguidor do Concílio de Niceia e, por isso, era totalmente contra as interpretações cristãs que diferiam da oficial, o cristianismo ortodoxo. Na região de seu episcopado, Idácio teve que lidar com uma interpretação cristã chamada de priscilianismo, a qual teve muita aceitação pela população. Apesar de não ser adotada em larga escala por um povo bárbaro, como o arianismo, a mesma acabou se difundido de tal modo na região da Gallaecia que viria a ser um dos motivos por qual Idácio de Chaves acreditava que a unificação religiosa do Império Romano na região estava ameaçada. Temos a intenção de discorrer nesse artigo sobre a difusão do priscilianismo nessa região durante finais do século IV d.C. até meados do século V d.C. e de interpretar o que foi essa heresia para Idácio de Chaves. Palavras-chave: Priscilianismo – Gallaecia – Idácio de Chaves.  Abstract: This paper aims to carry out an analysis about the chronicle of the Bishop Hydatius. This espiscopate was a loyal believer of the Council of Nicaea and, for that reason, he was thoroughly against Christian interpretations which were different from the official one, the orthodox Christianity. In his episcopal region, Hydatius had to deal with a Christian interpretation called Priscillianism, which had a lot of acceptance by the population. Although it was not largely adopted by a barbarian population like arianism, it became much widespread in the region of Gallaecia which would be one of the reasons in which Hydatius believed that the religious unification of Roman Empire in the region was endangered. In this article, we aim to talk about the diffusion of Priscillianism in this region during the end of IV Century a.C. until in the middle V Century a.D. and to interpret what this heresy was to Hydatius of Chaves. Keywords: Priscillianism

  1. 29 CFR 97.20 - Standards for financial management systems.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 1 2010-07-01 2010-07-01 true Standards for financial management systems. 97.20 Section 97... Standards for financial management systems. (a) A State must expand and account for grant funds in... financial management systems of other grantees and subgrantees must meet the following standards: (1...

  2. 40 CFR 97.123 - CAIR permit contents and term.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false CAIR permit contents and term. 97.123 Section 97.123 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... facilitate coordination of the renewal of the CAIR permit with issuance, revision, or renewal of the CAIR NOX...

  3. Ferdinand Buisson no Brasil: pistas, vestígios e sinais de suas idéias pedagógicas (1870-1900

    Directory of Open Access Journals (Sweden)

    Maria Helena Camara Bastos

    2012-06-01

    Full Text Available  O presente estudo analisa a influência das idéias pedagógicas de Ferdinand Buisson no Brasil, nas três décadas finais do século 19, a partir da análise da produção de dois representantes da ilustração brasileira - Rui Barbosa (1849-1923 e Joaquim José Menezes Vieira (1848-1897. Busca pistas, sinais e vestígios de sua influência na tradução de Primary Object Lessons (leçons de choses de Norman Allison Calkins, por Rui Barbosa em 1881; na implantação do método intuitivo; na elaboração dos Pareceres de Reforma do Ensino Primário, Secundário, Superior e de várias instituições complementares, por Rui Barbosa (1882-1883; na realização de exposições pedagógica (1883 e escolares; na implantação do Pedagogium (1890-1919, museu pedagógico brasileiro segundo o modelo francês; na redação da Revista Pedag6gica (1890-1896, editada segundo a organização da Revue Pédagogique, por Menezes Vieira.Palavras-chave: história da educação, idéias pedagógicas, influência francesa.   Résume L'étude analyse I'influence des idées pédagogiques de Ferdinand Buisson au Brésil, pendant les trois dernieres décennies du 19eme siecle, à travers I'analyse de Ia production des deux représentants de l'illustration brésilienne - Rui Barbosa (1849-1923 et Joaquim José de Menezes Vieira (1848-1897. On cherchera des traces, signaux et vestiges de l'influence de Buisson dans Ia traduction, par Rui Barbosa, de l'oeuvre Primary Object Lessons (Leçon de choses, de Norman Allison Calkins, en 1881; dans l'élaboration des Pareceres de Reforma do Ensino Primário, Secundário, Superior e de Várias Instituições Complementares (Exposé sur Ia Réforme de I'Enseignement primaire, secondaire, supérieur et d'autres institutions complémentaires par Rui Barbosa (1882-1883; dans promotion de Ia méthode intuitive; dans Ia réalisation d'expositions pédagogiques (1883 et scolaires; dans I'implantation du musée pédagogique Pedagogium

  4. Establishing the transport properties of QCD with heavy ion reactions. Final Scientific Report for DE-FG02-07ER41524

    International Nuclear Information System (INIS)

    Teaney, Derek

    2008-01-01

    During the time period from 9/1/07 - 3/1/08 the principle investigator was awarded a federal grant from the Department of Energy (DE-FG02-07ER41524) to establish the transport properties of QCD through heavy ion reactions. A relativistic viscous hydrodynamic computer code was developed in 2+1 dimensions which is suitable for extracting the shear viscosity from available heavy ion data. In addition, the transport coefficients of heavy mesons in strongly coupled N = 4 plasmas were determined using the gauge gravity duality. These transport coefficients are suppressed by 1/N c 2 which stymied previous efforts to determine the kinetics of these mesons.

  5. 40 CFR 97.223 - CAIR permit contents and term.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false CAIR permit contents and term. 97.223 Section 97.223 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... facilitate coordination of the renewal of the CAIR permit with issuance, revision, or renewal of the CAIR SO2...

  6. Yucca Mountain Project Integrated Data System (IDS). Final report, October 1, 1989--December 31, 1990

    International Nuclear Information System (INIS)

    1991-01-01

    This final report for LANL Subcontract 9-XS8-2604-1 includes copies of all formal letters, memorandums, and reports provided by CAG to support the IDS effort in the LANL Test Managers Office, Las Vegas, Nevada from October 1, 1989 through the end of the contract on December 31, 1990. The material is divided into two sections; the Functional Requirements Document (FRD) and other reports, letters, and memorandums. All documents are arranged in chronological order with most recent last. Numerous draft copies of the FRD were prepared and cover sheets for all drafts are included. The complete text of only the last version supplied (July 27, 1990) is included in this document

  7. Valor de las pruebas inmunológicas en el diagnóstico de las enfermedades micóticas: experiencia de un centro de referencia

    Directory of Open Access Journals (Sweden)

    Magaly Chinchilla

    1998-09-01

    Full Text Available Las pruebas inmunológicas han sido ampliamente utilizadas como evidencia indirecta de infección micótica y tienen valor diagnóstico; algunas de estas pruebas pueden ser fácilmente adaptadas en los laboratorios con un bajo nivel de complejidad. El Laboratorio de Mitología del Grupo de Microbiología del lnstituto Nacional de Salud es centro de referencia para el diagnóstico de las micosis sistémicas en el país; por tal motivo y con el fin de establecer una red nacional, se seleccionaron cuatro laboratorios regionales y se entrenó personal en técnicas inmunológicas para realizar el diagnóstico de la histoplasmosis y de la paracoccidioidomicosis. Las técnicas empleadas fueron: inmunodifusión (ID para histoplasmosis, paracoccidioidomicosis y aspergilosis; fijación de complemento (FC para histoplasmosis y paracoccidioidomicosis y, aglutinación con partículas de látex para la antigenemia en la criptococosis. En un período de 7 años (1990 -1996, los laboratorios procesaron 6.841 muestras de suero correspondientes a 6.411 pacientes con diagnósticos compatibles con micosis sistémicas. Los cuatro laboratorios regionales analizaron 1.918 muestras (28% y el centro de referencia, 4.923 (72%. La reactividad total fue de 13,5% (923/6.841, discriminada así: histoplasmosis, 42,5%; paracoccidioidomicosis, 33%; criptococosis, 21,2%, y aspergilosis, 3,3%. El número total de casos diagnosticados fue de 441: 155 histoplasmosis, 120 paracoccidioidomicosis, 138 criptococosis y 28 aspergilosis. El empleo de la ID en los centros regionales permitió el diagnóstico de 31% de los pacientes con histoplasmosis, de 41,6% de los pacientes con paracoccidioidomicosis y 53,6% de los pacientes con aspergilosis, lo cual indica que el diagnóstico precoz se puede realizar a nivel regional. La sensibilidad y la simplicidad de la prueba de ID constituye un excelente recurso para los laboratorios de baja complejidad, a nivel regional, que operan en áreas endémicas.

  8. Human FcγRIIA induces anaphylactic and allergic reactions.

    Science.gov (United States)

    Jönsson, Friederike; Mancardi, David A; Zhao, Wei; Kita, Yoshihiro; Iannascoli, Bruno; Khun, Huot; van Rooijen, Nico; Shimizu, Takao; Schwartz, Lawrence B; Daëron, Marc; Bruhns, Pierre

    2012-03-15

    IgE and IgE receptors (FcεRI) are well-known inducers of allergy. We recently found in mice that active systemic anaphylaxis depends on IgG and IgG receptors (FcγRIIIA and FcγRIV) expressed by neutrophils, rather than on IgE and FcεRI expressed by mast cells and basophils. In humans, neutrophils, mast cells, basophils, and eosinophils do not express FcγRIIIA or FcγRIV, but FcγRIIA. We therefore investigated the possible role of FcγRIIA in allergy by generating novel FcγRIIA-transgenic mice, in which various models of allergic reactions induced by IgG could be studied. In mice, FcγRIIA was sufficient to trigger active and passive anaphylaxis, and airway inflammation in vivo. Blocking FcγRIIA in vivo abolished these reactions. We identified mast cells to be responsible for FcγRIIA-dependent passive cutaneous anaphylaxis, and monocytes/macrophages and neutrophils to be responsible for FcγRIIA-dependent passive systemic anaphylaxis. Supporting these findings, human mast cells, monocytes and neutrophils produced anaphylactogenic mediators after FcγRIIA engagement. IgG and FcγRIIA may therefore contribute to allergic and anaphylactic reactions in humans.

  9. An online ID identification system for liquefied-gas cylinder plant

    Science.gov (United States)

    He, Jin; Ding, Zhenwen; Han, Lei; Zhang, Hao

    2017-11-01

    An automatic ID identification system for gas cylinders' online production was developed based on the production conditions and requirements of the Technical Committee for Standardization of Gas Cylinders. A cylinder ID image acquisition system was designed to improve the image contrast of ID regions on gas cylinders against the background. Then the ID digits region was located by the CNN template matching algorithm. Following that, an adaptive threshold method based on the analysis of local average grey value and standard deviation was proposed to overcome defects of non-uniform background in the segmentation results. To improve the single digit identification accuracy, two BP neural networks were trained respectively for the identification of all digits and the easily confusable digits. If the single digit was classified as one of confusable digits by the former BP neural network, it was further tested by the later one, and the later result was taken as the final identification result of this single digit. At last, the majority voting was adopted to decide the final identification result for the 6-digit cylinder ID. The developed system was installed on a production line of a liquefied-petroleum-gas cylinder plant and worked in parallel with the existing weighing step on the line. Through the field test, the correct identification rate for single ID digit was 94.73%, and none of the tested 2000 cylinder ID was misclassified through the majority voting.

  10. A novel Bacillus pumilus-related strain from tropical landfarm soil is capable of rapid dibenzothiophene degradation and biodesulfurization.

    Science.gov (United States)

    Buzanello, Elizandra Bruschi; Rezende, Rachel Passos; Sousa, Fernanda Maria Oliveira; Marques, Eric de Lima Silva; Loguercio, Leandro Lopes

    2014-10-08

    The presence of organic sulfur-containing compounds in the environment is harmful to animals and human health. The combustion of these compounds in fossil fuels tends to release sulfur dioxide in the atmosphere, which leads to acid rain, corrosion, damage to crops, and an array of other problems. The process of biodesulfurization rationally exploits the ability of certain microorganisms in the removal of sulfur prior to fuel burning, without loss of calorific value. In this sense, we hypothesized that bacterial isolates from tropical landfarm soils can demonstrate the ability to degrade dibenzothiophene (DBT), the major sulfur-containing compound present in fuels. Nine bacterial isolates previously obtained from a tropical landfarm soil were tested for their ability to degrade dibenzothiophene (DBT). An isolate labeled as RR-3 has shown the best performance and was further characterized in the present study. Based on physiological aspects and 16 s rDNA sequencing, this isolate was found to be very closely related to the Bacillus pumillus species. During its growth, high levels of DBT were removed in the first 24 hours, and a rapid DBT degradation within the first hour of incubation was observed when resting cells were used. Detection of 2-hydroxybiphenyl (HBP), a marker for the 4S pathway, suggests this strain has metabolical capability for DBT desulfurization. The presence of MgSO4 in growth medium as an additional sulfur source has interfered with DBT degradation. To our knowledge, this is the first study showing that a Bacillus strain can metabolize DBT via the 4S pathway. However, further evidences suggest RR-3 can also use DBT (and/or its derivative metabolites) as carbon/sulfur source through another type of metabolism. Compared to other reported DBT-degrading strains, the RR-3 isolate showed the highest capacity for DBT degradation ever described in quantitative terms. The potential application of this isolate for the biodesulfurization of this sulfur

  11. Quadripartition et idéologie dans les communautés aymaras de Carangas (Bolivie

    Directory of Open Access Journals (Sweden)

    1983-01-01

    Full Text Available Dans les communautés aymaras de Carangas (hauts-plateaux boliviens les moitiés et ayllu existent toujours bien qu'ils aient perdu, depuis longtemps sans doute, toute fonction économique et sociale spécifique. Les représentations symboliques qui lient ces unités entre elles ont cependant pu conserver une fonction idéologique importante jusqu'à nos jours, nécessaire pour assurer la continuité et la solidarité de la communauté. Il convient pourtant de ne pas généraliser et de considérer la variété des contextes. L'exemple de Sabaya montre que dans une société où les tensions et les inégalités sont de plus en plus fortes, la fonction idéologique du langage quadripartite a rapidement perdu son sens: ignoré ou oublié par les secteurs dominants, il n'est désormais utilisé que par une population paysanne marginalisée. Dès lors, le dualisme et la quadripartition ne sont plus le signe d'une belle tradition supposée andine mais la manifestation d'un traditionalisme devenu 'obligatoire'. En las comunidades aymaras de Carangas (altiplano boliviano, las mitades y los ayllu siguen existiendo aunque hayan perdido, desde mucho tiempo, toda función económica y social específica. Sin embargo las representaciones simbólicas que ligan esas unidades entre sí han podido conservar una función ideológica importante hasta nuestros días en la medida en que garantizan la continuidad y la solidaridad de la comunidad. En todo caso conviene considerar la variedad de los contextos para evitar toda clase de generalización El ejemplo de Sabaya muestra que en una sociedad donde las tensiones y las desigualdades son cada vez más fuertes, la función ideológica del lenguaje cuadripartita ha perdido rápidamente su sentido: olvidado o ignorado por los sectores dominantes, ahora sólo es utilizado por una población campesina marginalizada. El dualismo y la cuadripartición ya no son entonces la expresión de una bella tradición andina sino

  12. Ingestão de alimentos e adequação de nutrientes no final da infância Food intake and nutritional adequacy in final phase of childhood

    Directory of Open Access Journals (Sweden)

    Maria de Fátima Machado de ALBUQUERQUE

    2002-09-01

    Full Text Available Este trabalho reúne informações sobre a ingestão de alimentos e a adequação dos nutrientes no período final da infância. O grupo estudado foi composto por 247 escolares, sendo 150 do sexo feminino e 97 do masculino, com idade de nove e dez anos, pertencentes a escolas públicas municipais de Maceió. Os dados sobre ingestão de alimentos foram coletados através do recordatório de 24 horas e comparados com as recomendações preconizadas pelo National Research Council de 1989. De acordo com os resultados, a ingestão alimentar dos escolares apresentou-se deficiente em relação à energia e aos micronutrientes, especialmente as vitaminas e alguns minerais pesquisados, com exceção do ferro. Essa deficiência foi encontrada independente do sexo. Tais achados sugerem que o aporte insuficiente dos nutrientes estudados, se persistente, poderá contribuir negativamente para o desempenho do crescimento linear durante a fase da adolescência.This study analyzes the results of a dietary intake survey. The main goal was to estimate the nutrient and energy intake of children in final phase of childhood and the nutritional adequacy of their diet. The studied group was composed of 247 schoolchildren (150 females and 97 males, aged nine to ten years old from public schools of the city of Maceió, state of Alagoas. Food intake data were collected through a 24-hour dietary recall and compared with the standards of National Research Council-Recommended Dietary Allowances (RDA, 1989. According to the results, the children food intake, independently of the sex, was deficient in energy and micronutrients, specially vitamins and some minerals, with the exception of iron. These findings suggest that in this group specific nutrients deficits can be a limiting factor which may contribute to an inadequate growth performance during adolescence.

  13. O papel das Forças Armadas na I&D da Defesa como vector de desenvolvimento nacional

    OpenAIRE

    Simões, Luís

    2010-01-01

    A humanidade sempre se preocupou com o seu bem-estar, de alguma forma. Neste âmbito, o desenvolvimento económico tem vindo a desempenhar um papel fundamental. Após a revolução industrial, mas particularmente depois da II Guerra Mundial, os Estados têm-se preocupado com o respectivo desenvolvimento económico sustentável, entre outras questões, como garante de bem-estar das suas populações. A investigação e desenvolvimento (I&D), no seu conjunto, têm sido apontados como um possível vector de de...

  14. Um novo Fundef? As idéias de Anísio Teixeira

    Directory of Open Access Journals (Sweden)

    Amaral Nelson Cardoso

    2001-01-01

    Full Text Available O professor Anísio Teixeira, na década de 1960, preocupado com o financiamento da educação, apresentou uma proposta de como definir e implantar um fundo que garantisse recursos permanentes para o ensino primário. Em seus aspectos metodológicos, o Fundo de Manutenção e Desenvolvimento do Ensino Fundamental e de Valorização do Magistério (Fundef, criado pelo Governo, assemelha-se à proposta apresentada por Anísio Teixeira. Existem, entretanto, diferenças importantes e fundamentais, pelo fato do professor Anísio definir o volume total de recursos a partir do estabelecimento do salário dos docentes. Nesse estudo apresentam-se as semelhanças e diferenças entre os dois fundos e realiza-se uma simulação do que se poderia chamar "Um novo Fundef", baseado nas idéias de Anísio Teixeira. Como resultado, obtém-se valores perfeitamente viáveis para serem financiados por uma economia com a dimensão da economia brasileira, assim como ocorreu no estudo apresentado por Anísio Teixeira no livro Educação é um direito.

  15. Bulk Fermi surface and electronic properties of Cu0.07Bi2Se3

    Science.gov (United States)

    Martin, C.; Craciun, V.; Miller, K. H.; Uzakbaiuly, B.; Buvaev, S.; Berger, H.; Hebard, A. F.; Tanner, D. B.

    2013-05-01

    The electronic properties of Cu0.07Bi2Se3 have been investigated using Shubnikov-de Haas and optical reflectance measurements. Quantum oscillations reveal a bulk, three-dimensional Fermi surface with anisotropy kFc/kFab≈ 2 and a modest increase in free-carrier concentration and in scattering rate with respect to the undoped Bi2Se3, also confirmed by reflectivity data. The effective mass is almost identical to that of Bi2Se3. Optical conductivity reveals a strong enhancement of the bound impurity bands with Cu addition, suggesting that a significant number of Cu atoms enter the interstitial sites between Bi and Se layers or may even substitute for Bi. This conclusion is also supported by x-ray diffraction measurements, where a significant increase of microstrain was found in Cu0.07Bi2Se3, compared to Bi2Se3.

  16. Id1 and Id3 expression is associated with increasing grade of prostate cancer: Id3 preferentially regulates CDKN1B

    International Nuclear Information System (INIS)

    Sharma, Pankaj; Patel, Divya; Chaudhary, Jaideep

    2012-01-01

    As transcriptional regulators of basic helix–oop–helix (bHLH) transcription and non-bHLH factors, the inhibitor of differentiation (Id1, Id2, Id3, and Id4) proteins play a critical role in coordinated regulation of cell growth, differentiation, tumorigenesis, and angiogenesis. Id1 regulates prostate cancer (PCa) cell proliferation, apoptosis, and androgen independence, but its clinical significance in PCa remains controversial. Moreover, there is lack of evidence on the expression of Id2 and Id3 in PCa progression. In this study we investigated the expression of Id2 and Id3 and reevaluated the expression of Id1 in PCa. We show that increased Id1 and Id3 protein expression is strongly associated with increasing grade of PCa. At the molecular level, we report that silencing either Id1 or Id3 attenuates cell cycle. Although structurally and mechanistically similar, our results show that both these proteins are noncompensatory at least in PCa progression. Moreover, through gene silencing approaches we show that Id1 and Id3 primarily attenuates CDKN1A (p21) and CDKN1B (p27), respectively. We also demonstrate that silencing Id3 alone significantly attenuates proliferation of PCa cells as compared with Id1. We propose that increased Id1 and Id3 expression attenuates all three cyclin-dependent kinase inhibitors (CDKN2B, -1A, and -1B) resulting in a more aggressive PCa phenotype

  17. Advances in therapeutic Fc engineering - modulation of IgG associated effector functions and serum half-life

    Directory of Open Access Journals (Sweden)

    Abhishek Saxena

    2016-12-01

    Full Text Available Today monoclonal immunoglobulin gamma (IgG antibodies have become a major option in cancer therapy especially for the patients with advanced or metastatic cancers. Efficacy of monoclonal antibodies (mAbs are achieved through both its antigen binding fragment (Fab and crystallizable fragment (Fc. Fab can specifically recognize tumor associated antigen (TAA and thus modulate TAA-linked downstream signaling pathways that may lead to inhibition of tumor growth, induction of tumor apoptosis and differentiation. The Fc region can further improve mAbs’ efficacy by mediating effector functions such as antibody-dependent cellular cytotoxicity (ADCC, complement-dependent cytotoxicity (CDC and antibody dependent cell-mediated phagocytosis (ADCP. Moreover, Fc is the region interacting with the neonatal Fc receptor (FcRn in a pH-dependent manner that can slow down IgG’s degradation and extend its serum half-life. Loss of the antibody Fc region dramatically shortens its serum half-life and weakens its anti-cancer effects. Given the essential roles that the Fc region plays in the modulation of the efficacy of mAb in cancer treatment, Fc engineering has been extensively studied in the past years. This review focuses on the recent advances in therapeutic Fc engineering that modulates its related effector functions and serum half-life. We also discuss the progress made in aglycosylated mAb development that may substantially reduce cost of manufacture but maintain similar efficacies as conventional glycosylated mAb. Finally, we highlight several Fc engineering based mAbs under clinical trials.

  18. Comparison of the Fc fragment from a human IgG1 and its CH2, pFc', and tFc' subfragments. A study using reductive methylation and 13C NMR

    International Nuclear Information System (INIS)

    Jentoft, J.E.; Rayford, R.

    1989-01-01

    The Fc fragment of a human monoclonal IgG1 was compared with subfragments containing (a) the intact CH2 domain (CH2 fragment) or (b) the intact CH3 domain (pFc' and tFc' fragments). All fragments were reductively 13 C-methylated and their resulting dimethyllysyl resonances characterized in 0.1 M KCl as a function of pH by 13 C NMR spectroscopy. Seven resonances were characterized for the 18 lysine residues of the Fc fragment, eight for the 12 lysines of the CH2 fragment, and five each for the 9 lysines of the pFc' and the 6 lysines of the tFc' fragments, respectively. The multiplicity of resonances indicates that the lysine residues in each fragment exist in a variety of microenvironments and that the fragments are all highly structured. The correspondence between 6 of the 12 or 13 perturbed lysine residues in the Fc fragment and the smaller subfragments indicates that the conformation of the CH2 and CH3 domains is largely unchanged in the smaller fragments. However, in addition to three lysines at the CH2-CH3 domain interface, whose environments were known to be disrupted in the smaller fragments, three or four lysine residues have somewhat different properties in the Fc fragment and in the subfragments, indicating that some local perturbations are included in the domain structure in the subfragments

  19. Información sobre I+D y valoración de empresas El caso del sector automotriz en Estados Unidos de Norteamérica y Reino Unido

    OpenAIRE

    Teresa Duarte Atoche; José Ángel Pérez López; José Antonio Camúñez Ruiz

    2012-01-01

    Los Principios de Contabilidad Generalmente Aceptados en EE.UU. requieren del tratamiento como gasto de las inversiones de I+D. Sin embargo, las Normas Internacionales de Información Financiera permiten su capitalización siempre y cuando se cumplan ciertos criterios (IAS 38). En la actualidad, la Junta de Normas Internacionales de Contabilidad (IASB) y el Consejo de Normas de Contabilidad Financiera (FASB) están de acuerdo en unificar esfuerzos para reducir o eliminar las diferencias entre el...

  20. Substituição parcial e total da proteína do farelo de soja pela proteína dos farelos de canola e algodão em dietas para alevinos de piavuçu, Leporinus macrocephalus (Garavello & Britski, 1988 Partial and total replacement of soybean meal protein by canola or cottonseed meal protein in diets of Leporinus macrocephalus (Garavello & Britski, 1988 fingerlings

    Directory of Open Access Journals (Sweden)

    Anna Christina Esper Amaro de Faria

    2001-05-01

    Full Text Available Com o objetivo de avaliar a substituição da proteína do farelo de soja (FS pela proteína do farelo de canola (FC e farelo de algodão (FA, em dietas para alevinos de piavuçu, Leporinus macrocephalus (Characiformes, Anostomidae, realizou-se um experimento com duração de 60 dias, utilizando-se 300 alevinos, com peso inicial médio de 0,10 g distribuídos em um delineamento em blocos casualizados, com seis tratamentos e cinco repetições. As dietas isoprotéicas foram formuladas de forma a terem o FS, FC, FA, FS+FC, FS+FA e FC+FA como fonte protéica. Os alevinos, alimentados com dietas contendo FS e FS+FA, apresentaram valores de peso final e taxa de eficiência protéica superiores (p 0,05 pelo uso das diferentes dietas. Observou-se redução linear dos valores de peso final, da taxa de eficiência protéica e aumento linear (p The effects of soybean meal (SB protein replacement by canola meal (CN or cottonseed meal (CT protein in diets of Leporinus macrocephalus (Characiformes, Anostomidae fingerlings are provided. Assay was carried out during 60 days. Three hundred fingerlings with mean initial weight of 1.00g were distributed in a block randomized design with six treatments and five replicates. Isoprotein diets contained SB, CN, CT, SB+CN, SB+CT and CN+CT as protein source. Fingerlings fed on diets with SB, SB+CN, SB+CT showed better final mean weight and protein efficiency rate values (p 0.05 by different diets linear reduction (p macrocephalus fingerlings, replacing 50.00% of SB protein.

  1. O conceito de federalismo e a idéia de interesse no Brasil do século XIX

    Directory of Open Access Journals (Sweden)

    Ivo Coser

    2008-01-01

    Full Text Available Dans cet article, on cherche à comprendre la formation du concept de fédéralisme dans le domaine politique brésilien du XIXe siècle. C'est-à-dire, le passage du concept de confédération vers celui de fédéralisme ainsi que les valeurs politiques qui y seront associés. Suivant la méthodologie de l'Histoire des Concepts proposée par Reinhart Koselleck, on a essayé d'observer les continuités et les discontinuités par rapport au sujet de la décentralisation. D'après l'analyse des journaux et des débats parlementaires de l'époque, on perçoit que l'idée d'intérêt provincial est un aspect fondamental pour comprendre la pensée fédéraliste diffusée pendant la première moitié du XIXe siècle.

  2. 40 CFR 97.253 - Recordation of CAIR SO2 allowances.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Recordation of CAIR SO2 allowances. 97... (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR SO2 Allowance Tracking System § 97.253 Recordation of CAIR SO2 allowances. (a)(1) After a compliance account is...

  3. Fibrose Cística: Análise da Coorte de 10 Anos de um Programa para Adultos

    Directory of Open Access Journals (Sweden)

    Paulo de Tarso Roth Dalcin

    2011-07-01

    Full Text Available Introdução: A fibrose cística (FC que já foi considerada doença da criança é agora doença do adulto e requer programa para adultos. Objetivo: definir características clínicas de uma coorte de 10 anos de um programa para adultos com FC e determinar as características associadas com desfechos clínicos. Métodos: coorte retrospectiva de pacientes com FC (idade ≥ 10 anos atendida pelo Programa para Adultos do Hospital de Clínicas de Porto Alegre, de outubro de 1998 a outubro de 2008. Foram coletados dados demográficos, dados clínicos, status nutricional, função pulmonar, testes laboratoriais e microbiologia do escarro. Foram definidos como desfechos clínicos: sobrevivência, sobrevivência com transplante pulmonar e óbito. Resultados: foram atendidos 94 pacientes pelo programa para adultos. A média de idade foi 24,0±7,4 anos e a média do volume expiratório forçado no primeiro segundo (VEF1 foi 56,4±28,8%. Setenta e sete pacientes foram sobreviventes, 6 sobreviventes com transplante pulmonar e 11 morreram. Na análise univariada, etnia caucasiana (p=0,016, mutação F508del (p=0,04, escore clínico (p<0,001, índice de massa corporal (p<0,001,  oxigenoterapia (p<0,001, capacidade vital forçada (p=0,023 e VEF1 (p<0,001 se associaram com os desfechos clínicos. A análise de regressão logística identificou fatores associados com desfecho precário: VEF1 (RC=0,.72, ICI=0,54-0,94, p=0,017 e escore clínico  (RC = 0,70, IC=0,50-0,97, p = 0,034. Insuficiência respiratória crônica exacerbada por infecção respiratória aguda foi causa imediata de morte na maioria dos casos. Conclusão: Este estudo descreveu uma coorte de 94 pacientes com FC atendidos por um programa de adultos. VEF1 e escore clinico se associaram com os desfechos clínicos.

  4. HAL/S-FC compiler system specifications

    Science.gov (United States)

    1976-01-01

    This document specifies the informational interfaces within the HAL/S-FC compiler, and between the compiler and the external environment. This Compiler System Specification is for the HAL/S-FC compiler and its associated run time facilities which implement the full HAL/S language. The HAL/S-FC compiler is designed to operate stand-alone on any compatible IBM 360/370 computer and within the Software Development Laboratory (SDL) at NASA/JSC, Houston, Texas.

  5. Adaptación del Inventario de Estrategias de Afrontamiento (CSI a la población penitenciaria de Mexico

    Directory of Open Access Journals (Sweden)

    Francisco Javier Rodríguez-Díaz

    2014-01-01

    Full Text Available El objetivo del estudio es adaptar el CSI - Inventario de Estrategias de Afrontamiento - al contexto penitenciario. La muestra - 261 penados, 97% varones (n=253 - del Sistema Postpenitenciario y Atención a Liberados (DSPAL del Estado Jalisco, México. Los instrumentos utilizados: Ficha Penitenciaria de Historia de Vida y el Inventario CSI. Los resultados refieren una estructura de primer orden casi idéntica a la obtenida para la población general, con niveles de consistencia interna satisfactorios, al mismo tiempo que la interpretación de segundo orden no confirma la estructura de segundo y tercer orden. Se discuten las implicaciones de los resultados para intervención penitenciaria.

  6. Produção de mudas de tomateiro em substratos contendo fibra de coco e pó de rocha Tomato seedlings production using substrates with coconut fiber and rock waste

    Directory of Open Access Journals (Sweden)

    Regynaldo A Sampaio

    2008-12-01

    Full Text Available Com o objetivo de avaliar proporções dos resíduos fibra de coco (FC e pó de rocha de granito (RG como substratos na produção de mudas de tomateiro, cultivar Kada Gigante, realizou-se um experimento em casa de vegetação na UFMG-ICA. Foi utilizado o delineamento experimental em blocos ao acaso, com quatro repetições. Os tratamentos foram constituídos por uma testemunha e seis proporções de fibra de coco (FC e pó de rocha de granito (RG: T1 - Substrato comercial Hortimix®; T2 - 0% FC + 100% RG; T3 - 20% FC + 80% RG; T4 - 40% FC + 60% RG; T5 - 60% FC + 40% RG; T6 - 80% FC + 20% RG; T7 - 100% FC + 0% RG. O cultivo foi feito em bandeja de poliestireno expandido com células de 3,5 x 3,5 x 5,0 cm. Foram avaliados o diâmetro do coleto, a altura da planta, o índice de velocidade de emergência, a percentagem de emergência e a massa fresca e seca da parte aérea e da raiz. Em praticamente todas as características avaliadas o substrato comercial foi superior aos substratos contendo fibra de coco e pó de rocha. Considerando-se apenas os substratos contendo fibra de coco e pó de rocha, as mudas com melhores características foram obtidas com a mistura de aproximadamente 70% em volume de fibra de coco.A greenhouse experiment was carried out to evaluate the ratio of coconut fiber and rock waste, in the tomato seedling production (cultivar Kada Gigante, in Montes Claros, Brazil. The experimental design was of randomized complete blocks with four replicates. The treatments were composed of a control and six ratios of coconut fiber (FC and rock waste (RG: T1 - Commercial Substrate Hortimix®; T2 - 0% FC + 100% RG; T3 - 20% FC + 80% RG; T4 - 40% FC + 60% RG; T5 - 60% FC + 40% RG; T6 - 80% FC + 20% RG; T7 - 100% FC + 0% RG. The cultivation was done in polystyrene trays with cells of 3.5 x 3.5 x 5,0 cm. Stem diameter, seedling height, emergency speed index, emergency percentage, root and aerial part of fresh and dry matter were evaluated. In

  7. 40 CFR 97.85 - NOX Budget opt-in permit contents.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false NOX Budget opt-in permit contents. 97... (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS Individual Unit Opt-ins. § 97.85 NOX Budget opt-in permit contents. (a) Each NOX Budget opt-in permit will contain all elements...

  8. Qualidade de vida, ponto de partida ou resultado final?

    Directory of Open Access Journals (Sweden)

    Alby Duarte Rocha

    Full Text Available O que é qualidade de vida e o quanto podemos medir dela? Pensa-se em qualidade de vida como resultado das políticas públicas e desenvolvimento de uma sociedade, onde os determinantes socioambientais se manifestam como atributo de seus atores. Ao mesmo tempo, pode-se entender esta idéia no outro extremo da análise, a partir da percepção de uma população protagonista de sua realidade, do que vem a ser qualidade de vida segundo ela mesma. Partindo-se dos aspectos conceituais de qualidade de vida, passou-se a adotar os conceitos de diferenciais intra-urbanos como a melhor maneira de caracterizar os desajustes e as desigualdades urbanas, para assim entender os componentes da iniqüidade desse meio. A primeira iniciativa marcou a utilização do método genebrino ou distancial. Hoje, já na segunda versão desse método, incorporou-se a esse contexto outras metodologias que possibilitam maior consistência de análise para ampliar a validade dessas medições. Soma-se a esse contexto, a análise de cluster e o Sistema de Informações Geográficas, tanto no cenário intra-urbano, quanto intermunicipal.

  9. Quand l’idée fixe se met « à table »

    Directory of Open Access Journals (Sweden)

    Cécile de Bary

    2008-03-01

    Full Text Available Un livre de cuisine, comme A table de Claudian, édité en 1963, peut relever de la prose d’idées dans la mesure où son projet est sous-tendu par une idéologie très précise, qui seule lui donne sa cohérence. Si l’ethnocentrisme consiste à ne pas reconnaître à l’autre une culture, par exemple, ce livre apparaît comme ethnocentrique, puisqu’il a pour projet de départager les peuples qui savent et ceux qui ne savent pas. Il est encore réactionnaire, voué au rétablissement des savoir-faire des terroirs, contre les corruptions parisiennes en particulier. Dès lors, la présentation d’un plat est toujours susceptible de s’étendre ou de se faire discours, sous la poussée d’un lyrisme acrimonieux. Pour autant, il ne s’agit pas d’un faux livre de cuisine, d’un traité ou d’une « physiologie ». La recette est l’aboutissement logique de l’idée fixe. Elle est le lieu d’une bataille que l’argumentation sert, qu’elle met en scène et qu’elle prépare.

  10. Assessing the Heterogeneity of the Fc-Glycan of a Therapeutic Antibody Using an engineered FcγReceptor IIIa-Immobilized Column.

    Science.gov (United States)

    Kiyoshi, Masato; Caaveiro, Jose M M; Tada, Minoru; Tamura, Hiroko; Tanaka, Toru; Terao, Yosuke; Morante, Koldo; Harazono, Akira; Hashii, Noritaka; Shibata, Hiroko; Kuroda, Daisuke; Nagatoishi, Satoru; Oe, Seigo; Ide, Teruhiko; Tsumoto, Kouhei; Ishii-Watabe, Akiko

    2018-03-02

    The N-glycan moiety of IgG-Fc has a significant impact on multifaceted properties of antibodies such as in their effector function, structure, and stability. Numerous studies have been devoted to understanding its biological effect since the exact composition of the Fc N-glycan modulates the magnitude of effector functions such as the antibody-dependent cell mediated cytotoxicity (ADCC), and the complement-dependent cytotoxicity (CDC). To date, systematic analyses of the properties and influence of glycan variants have been of great interest. Understanding the principles on how N-glycosylation modulates those properties is important for the molecular design, manufacturing, process optimization, and quality control of therapeutic antibodies. In this study, we have separated a model therapeutic antibody into three fractions according to the composition of the N-glycan by using a novel FcγRIIIa chromatography column. Notably, Fc galactosylation was a major factor influencing the affinity of IgG-Fc to the FcγRIIIa immobilized on the column. Each antibody fraction was employed for structural, biological, and physicochemical analysis, illustrating the mechanism by which galactose modulates the affinity to FcγRIIIa. In addition, we discuss the benefits of the FcγRIIIa chromatography column to assess the heterogeneity of the N-glycan.

  11. Cultura Organizacional e Gestão de Equipes de Alto Rendimento: Os Casos FC Barcelona, Sporting Club de Portugal e AFC Ajax

    Directory of Open Access Journals (Sweden)

    Ary José Rocco Júnior

    2015-01-01

    Full Text Available 800x600 Em todo o mundo, a chamada Indústria do Esporte vêm experimentando vertiginoso crescimento financeiro. Com isso, o papel das agremiações esportivas adquiriu especial importância dentro da sociedade contemporânea global. A relevância do planejamento estratégico dessas organizações fez crescer a necessidade dos clubes esportivos investirem em estratégias que permitam o seu correto posicionamento no mercado e as suas conquistas no campo esportivo. A implantação e o desenvolvimento de uma cultura organizacional que permita o desenvolvimento de uma identidade do clube que agregue todos os seus stakeholders – atletas, torcedores, patrocinadores, marcas, investidores e outros -, é uma dessas estratégias. A criação estratégica e planejada de valores e princípios organizacionais que equilibrem resultados econômicos, mercadológicos e financeiros, com a performance esportiva, colabora para o desenvolvimento e implantação de uma cultura, que gera receita e traz conquistas no campo esportivo. O objetivo deste artigo é analisar três casos de sucesso – FC Barcelona, da Espanha; Sporting Club de Portugal; e, AFC Ajax, da Holanda -, de organizações esportivas que implantaram estratégias dessa natureza na Europa. Pretendemos, com isso, estimular agremiações esportivas do Brasil a adotarem estratégias semelhantes. Normal 0 21 false false false PT-BR X-NONE X-NONE MicrosoftInternetExplorer4

  12. Final Report for DOE Grant DE-FG02-03ER25579; Development of High-Order Accurate Interface Tracking Algorithms and Improved Constitutive Models for Problems in Continuum Mechanics with Applications to Jetting

    Energy Technology Data Exchange (ETDEWEB)

    Puckett, Elbridge Gerry [U.C. Davis, Department of Mathematics; Miller, Gregory Hale [.C. Davis, Department of Chemical Engineering

    2012-10-14

    published by Dr. Phillip Colella, the head of ANAG, and some of his colleagues. Chris Algieri is now employed as a staff member in Dr. Bill Collins' Climate Science Department in the Earth Sciences Division at LBNL working with computational models of climate change. Finally, it should be noted that the work conducted by Professor Puckett and his students Sarah Williams and Chris Algieri and described in this final report for DOE grant # DE-FC02-03ER25579 is closely related to work performed by Professor Puckett and his students under the auspices of Professor Puckett's DOE SciDAC grant DE-FC02-01ER25473 An Algorithmic and Software Framework for Applied Partial Differential Equations: A DOE SciDAC Integrated Software Infrastructure Center (ISIC). Dr. Colella was the lead PI for this SciDAC grant, which was comprised of several research groups from DOE national laboratories and five university PI's from five different universities. In theory Professor Puckett tried to use funds from the SciDAC grant to support work directly involved in implementing algorithms developed by members of his research group at UCD as software that might be of use to Puckett's SciDAC CoPIs. (For example, see the work reported in Section 2.2.2 of this final report.) However, since there is considerable lead time spent developing such algorithms before they are ready to become `software' and research plans and goals change as the research progresses, Professor Puckett supported each member of his research group partially with funds from the SciDAC APDEC ISIC DE-FC02-01ER25473 and partially with funds from this DOE MICS grant DE-FC02-03ER25579. This has necessarily resulted in a significant overlap of project areas that were funded by both grants. In particular, both Sarah Williams and Chris Algieri were supported partially with funds from grant # DE-FG02-03ER25579, for which this is the final report, and in part with funds from Professor Puckett's DOE SciDAC grant # DE-FC

  13. L-fucose in crystal structures of IgG-Fc: Reinterpretation of experimental data

    Czech Academy of Sciences Publication Activity Database

    Kolenko, Petr; Skálová, Tereza; Dohnálek, Jan; Hašek, Jindřich

    2008-01-01

    Roč. 73, č. 5 (2008), s. 608-615 ISSN 0010-0765 R&D Projects: GA ČR GA305/07/1073 Grant - others:FP6-2005-LifeSciHealth-6(EU) LSHG-CT-2006-031220 Institutional research plan: CEZ:AV0Z40500505 Source of funding: R - rámcový projekt EK Keywords : immunoglobulin * Fc-fragment * fucose Subject RIV: CD - Macromolecular Chemistry Impact factor: 0.784, year: 2008

  14. SecurID

    CERN Multimedia

    Now called RSA SecurID, SecurID is a mechanism developed by Security Dynamics that allows two-factor authentication for a user on a network resource. It works on the principle of the unique password mode, based on a shared secret. Every sixty seconds, the component generates a new six-digit token on the screen. The latter comes from the current time (internal clock) and the seed (SecurID private key that is available on the component, and is also from the SecurID server). During an authentication request, the SecurID server will check the entered token by performing exactly the same calculation as that performed by your component. The server knows the two information required for this calculation: the current time and the seed of your component. Access is allowed if the token calculated by the server matches the token you specified.

  15. Experimental investigation of small diameter two-phase closed thermosyphons charged with water, FC-84, FC-77 and FC-3283

    International Nuclear Information System (INIS)

    Jouhara, Hussam; Robinson, Anthony J.

    2010-01-01

    An experimental investigation of the performance of thermosyphons charged with water as well as the dielectric heat transfer liquids FC-84, FC-77 and FC-3283 has been carried out. The copper thermosyphon was 200 mm long with an inner diameter of 6 mm, which can be considered quite small compared with the vast majority of thermosyphons reported in the open literature. The evaporator length was 40 mm and the condenser length was 60 mm which corresponds with what might be expected in compact heat exchangers. With water as the working fluid two fluid loadings were investigated, that being 0.6 ml and 1.8 ml, corresponding to approximately half filled and overfilled evaporator section in order to ensure combined pool boiling and thin film evaporation/boiling and pool boiling only conditions, respectively. For the Fluorinert TM liquids, only the higher fill volume was tested as the aim was to investigate pool boiling opposed to thin film evaporation. Generally, the water-charged thermosyphon evaporator and condenser heat transfer characteristics compared well with available predictive correlations and theories. The thermal performance of the water-charged thermosyphon also outperformed the other three working fluids in both the effective thermal resistance as well as maximum heat transport capabilities. Even so, FC-84, the lowest saturation temperature fluid tested, shows marginal improvement in the heat transfer at low operating temperatures. All of the tested Fluorinert TM liquids offer the advantage of being dielectric fluids, which may be better suited for sensitive electronics cooling applications and were all found to provide adequate thermal performance up to approximately 30-50 W after which liquid entrainment compromised their performance.

  16. The effect of FcγRIIA and FcγRIIB on coronary artery lesion formation and intravenous immunoglobulin treatment responses in children with Kawasaki disease

    Science.gov (United States)

    Chang, Ling-Sai; Lo, Mao-Hung; Li, Sung-Chou; Yang, Ming-Yu; Hsieh, Kai-Sheng; Kuo, Ho-Chang

    2017-01-01

    Previous research has found patients with the FcγRIIIB NA1 variant having increased risk of intravenous immunoglobulin (IVIG) resistance in Kawasaki disease (KD). Our previous studies revealed that elevated FcγRIIA expression correlated with the susceptibility of KD patients. We conducted this research to determine whether and how Fcγ receptors affect the susceptibility, IVIG treatment response, and coronary artery lesions (CAL) of KD patients. The activating FcγRIIA and inhibitory FcγRIIB methylation levels of seven patients with KD and four control subjects were examined using HumanMethylation27 BeadChip. We enrolled a total of 44 KD patients and 10 control subjects with fevers. We performed real-time RT-PCR to determine the FcγRIIA and FcγRIIB expression levels, as well as a luciferase assay of FcγRIIA. We found a considerable increase in methylation of both FcγRIIA and FcγRIIB in KD patients undergoing IVIG treatment. Promoter methylation of FcγRIIA inhibited reporter activity in K562 cells using luciferase assay. The FcγRIIB mRNA expression levels were not found to increase susceptibility, CAL formation, or IVIG resistance. FcγRIIA mRNA expression levels were significantly higher in IVIG-resistant patients than in those that responded to IVIG during the pre-treatment period. Furthermore, the FcγRIIA/IIB mRNA expression ratio was considerably higher in KD patients with CAL than in those without CAL. FcγRIIA and FcγRIIB both demonstrated increased methylation levels in KD patients that underwent IVIG treatment. FcγRIIA expression influenced the IVIG treatment response of KD patients. The FcγRIIA/IIB mRNA expression ratio was greater in KD patients with CAL formation. PMID:27893416

  17. Anatomia do fígado de fetos de Guinea pig em final de gestação (Cavia porcellus [Linnaeus, 1758

    Directory of Open Access Journals (Sweden)

    Mariangela Toledo Barbino

    2011-08-01

    Full Text Available http://dx.doi.org/10.5007/2175-7925.2011v24n3p97 Desenvolveu-se este trabalho com o objetivo de descrever a anatomia do fígado de fetos de Guinea pig (Cavia porcellus [Linnaeus, 1758] em final de gestação e obter caracterizações anatômicas que possam fundamentar e auxiliar na compreensão da fisiologia da circulação fetal. Coletou-se os fetos de 3 fêmeas em final de gestação, os quais foram dissecados e retirado o fígado. Estes foram analisados, descritos e fotodocumentados macroscopicamente, por microscopia de luz em coloração HE e por microscopia eletrônica de varredura. O fígado dos fetos apresenta coloração castanho avermelhada e sua divisão em lobos é nitidamente observada, assim como a presença da vesícula biliar.  O fígado divide-se em lobo lateral esquerdo, lobo medial esquerdo, lobo lateral direito, lobo medial direito, lobo quadrado e lobo caudado com processos papilar e caudado Através da microscopia de luz, observa-se o tecido intensamente vascularizado sendo que, a porção esquerda do fígado recebe o sangue oriundo da placenta pela veia umbilical, e a porção direita é irrigada pela veia porta. Através desses resultados pode-se concluir que os fetos de Guinea pig possuem estruturas semelhantes anatomicamente aos de outras espécies de mamíferos.

  18. Produção de mudas de tomateiro em substratos contendo fibra de coco e pó de rocha

    OpenAIRE

    Sampaio,Regynaldo A; Ramos,Sílvio J; Guilherme,Denílson O; Costa,Cândido A da; Fernandes,Luiz Arnaldo

    2008-01-01

    Com o objetivo de avaliar proporções dos resíduos fibra de coco (FC) e pó de rocha de granito (RG) como substratos na produção de mudas de tomateiro, cultivar Kada Gigante, realizou-se um experimento em casa de vegetação na UFMG-ICA. Foi utilizado o delineamento experimental em blocos ao acaso, com quatro repetições. Os tratamentos foram constituídos por uma testemunha e seis proporções de fibra de coco (FC) e pó de rocha de granito (RG): T1 - Substrato comercial Hortimix®; T2 - 0% FC + 100% ...

  19. Discussion on the tropospheric concentrations of FC21

    Energy Technology Data Exchange (ETDEWEB)

    Crescentini, G.; Mangani, F.; Mastrogiamcomo, A.R.; Cappiello, A.; Bruner, F.

    1986-01-01

    FC21 tropospheric mixing ratios measured in air samples collected at different locations in the world are presented. Results of a campaign carried out at two locations in the Sahara desert where FC21 and FC11 mixing ratios were simultaneously determined in 180 samples are also shown. Though scattered high values have been found, the average background concentration of FC21 ranged between 0 and 1 pptv. 9 references, 1 figure, 2 tables.

  20. Qualidade e teores de nutrientes de palmeira-rápis em substrato com fibra de coco Quality and nutrient content of lady palm in coconut fiber substrate

    Directory of Open Access Journals (Sweden)

    Flávia dos S Alves

    2010-03-01

    Full Text Available As avaliações foram realizadas em quatro substratos compostos de mistura de fibra de coco triturada (FC e substrato comercial Plantmax HT® (SC, nas proporções de 0, 25, 50 e 75% de FC, em vasos com capacidade para 35 L, em delineamento de blocos ao acaso, com quatro repetições e três vasos por parcela, com uma planta por vaso. A adubação das plantas foi feita alternando-se, a cada três meses, 25 g de 4-14-8 com 10 g de uréia por vaso, a partir do plantio e durante os 24 meses do período experimental. O crescimento foi avaliado medindo-se a altura da haste inicial (da base do caule à inserção da última folha completamente expandida, número de folhas da haste inicial, número de perfilhos, número de folhas dos perfilhos, altura dos perfilhos e teores de nutrientes da última folha completamente expandida da haste inicial. A qualidade foi avaliada através de análise sensorial visual, baseado nos critérios "gostei"(muito ou pouco e "compraria"(sim ou não. Não houve diferença entre os tratamentos sobre as características de crescimento, exceto para o número de folhas da haste inicial. As plantas com melhor aceitação foram aquelas cultivadas na mistura com 50% FC e 50% SC. Nenhuma das plantas apresentou sintoma visual de deficiência de nutrientes, sendo os teores foliares encontrados em plantas sadias com padrão de qualidade para comercialização de: 17,80 - 18,29 g kg-1 de N; 0,66 - 0,81 g kg-1 de NO-3; 2,02 - 2,34 g kg-1 de P; 18,11 - 20,40 g kg-1 de K; 11,63 - 13,84 g kg-1 de Cl; 2,69 - 4,04 g kg-1 de Ca; 1,61 - 2,07 g kg-1 de S; 1,98 - 2,64 g kg-1 de Mg.It was evaluated the quality and nutrient content of lady palm in four substrates made up of a mixture of shredded coconut fiber (FC and commercial substrate Plantmax HT® (SC, in proportions of 0, 25, 50 and 75% of FC, in 35 liters containers, in a randomized block experiment with four replicates and three pots per plot, with one plant per pot. The plants were

  1. Structural insights into the interaction of human IgG1 with FcγRI: no direct role of glycans in binding

    Energy Technology Data Exchange (ETDEWEB)

    Oganesyan, Vaheh, E-mail: oganesyanv@medimmune.com; Mazor, Yariv; Yang, Chunning; Cook, Kimberly E.; Woods, Robert M. [MedImmune LLC, 1 MedImmune Way, Gaithersburg, MD 20878 (United States); Ferguson, Andrew [AstraZeneca Pharmaceuticals, 35 Gatehouse Drive, Mailstop E3, Waltham, MA 02451 (United States); Bowen, Michael A.; Martin, Tom; Zhu, Jie; Wu, Herren; Dall’Acqua, William F., E-mail: oganesyanv@medimmune.com [MedImmune LLC, 1 MedImmune Way, Gaithersburg, MD 20878 (United States)

    2015-10-31

    In an effort to identify the critical structural features responsible for the high-affinity interaction of IgG1 Fc with FcγRI, the structure of the corresponding complex was solved at a resolution of 2.4 Å. The three-dimensional structure of a human IgG1 Fc fragment bound to wild-type human FcγRI is reported. The structure of the corresponding complex was solved at a resolution of 2.4 Å using molecular replacement; this is the highest resolution achieved for an unmutated FcγRI molecule. This study highlights the critical structural and functional role played by the second extracellular subdomain of FcγRI. It also explains the long-known major energetic contribution of the Fc ‘LLGG’ motif at positions 234–237, and particularly of Leu235, via a ‘lock-and-key’ mechanism. Finally, a previously held belief is corrected and a differing view is offered on the recently proposed direct role of Fc carbohydrates in the corresponding interaction. Structural evidence is provided that such glycan-related effects are strictly indirect.

  2. Stendhal lecteur d’Helvétius et des Idéologues sur les avatars de l’amitié

    OpenAIRE

    Bassou, Muriel

    2015-01-01

    En janvier 1812, au moment de la conception du « beylisme », Henri Beyle, qui n’est pas encore Stendhal, fait le point sur le « Character of Mr Mys[elf] » en ces termes : Ses pensées sont neuves parce qu’il a refait à neuf beaucoup d’idées générales qui servent de mesure, comme : gloire, grandeur, bonheur, etc.Les autres mesurent ce qu’ils aperçoivent dans la nature avec une aune qui a quarante-deux pouces. Celle qu’il s’est faite au moyen d’Hel[vétius], de Tra[cy] et de l’expérience, est de ...

  3. International Decommissioning Symposium 2000 (IDS 2000). Final Report

    International Nuclear Information System (INIS)

    Ebadian, M.A.

    2001-01-01

    The purpose of IDS 2000 was to deliver a world-class conference on applicable global environmental issues. The objective of this conference was to publicize environmental progress of individual countries, to provide a forum for technology developer and problem-holder interaction, to facilitate environmental and technology discussions between the commercial and financial communities, and to accommodate information and education exchange between governments, industries, universities, and scientists. The scope of this project included the planning and execution of an international conference on the decommissioning of nuclear facilities, and the providing of a business forum for vendors and participants sufficient to attract service providers, technology developers, and the business and financial communities. These groups, when working together with attendees from regulatory organizations and government decision-maker groups, provide an opportunity to more effectively and efficiently expedite the decommissioning projects

  4. Final Report: Performance Engineering Research Institute

    Energy Technology Data Exchange (ETDEWEB)

    Mellor-Crummey, John [Rice Univ., Houston, TX (United States)

    2014-10-27

    This document is a final report about the work performed for cooperative agreement DE-FC02-06ER25764, the Rice University effort of Performance Engineering Research Institute (PERI). PERI was an Enabling Technologies Institute of the Scientific Discovery through Advanced Computing (SciDAC-2) program supported by the Department of Energy's Office of Science Advanced Scientific Computing Research (ASCR) program. The PERI effort at Rice University focused on (1) research and development of tools for measurement and analysis of application program performance, and (2) engagement with SciDAC-2 application teams.

  5. Traces of pFc' in IVIG interact with human IgG Fc domains and counteract aggregation

    NARCIS (Netherlands)

    Rispens, Theo; Himly, Martin; Ooievaar-de Heer, Pleuni; den Bleker, Tamara H.; Aalberse, Rob C.

    2010-01-01

    To prevent multimer formation, intravenous immunoglobulin (IVIG) is often treated with traces of pepsin. So far, the mechanism behind this treatment has been unclear. Recently, we reported that human IgG4 binds other IgG molecules via Fc-Fc interactions. Here we show that IVIG treated with traces of

  6. Nuclear Power 2010 Program Dominion Virginia Power Cooperative Project U.S. Department of Energy Cooperative Agreement DE-FC07-05ID14635 Construction and Operating License Demonstration Project Final Report

    International Nuclear Information System (INIS)

    Grecheck, Eugene S.; Batalo, David P.

    2010-01-01

    This report serves to summarize the major activities completed as part of Virginia Electric and Power Company's North Anna construction and operating license demonstration project with DOE. Project successes, lessons learned, and suggestions for improvement are discussed. Objectives of the North Anna COL project included preparation and submittal of a COLA to the USNRC incorporating ESBWR technology for a third unit a the North Anna Power Station site, support for the NRC review process and mandatory hearing, obtaining NRC approval of the COLA and issuance of a COL, and development of a business case necessary to support a decision on building a new nuclear power plant at the North Anna site.

  7. Nuclear Power 2010 Program Dominion Virginia Power Cooperative Project U.S. Department of Energy Cooperative Agreement DE-FC07-05ID14635 Construction and Operating License Demonstration Project Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Eugene S. Grecheck

    2010-11-30

    This report serves to summarize the major activities completed as part of Virginia Electric and Power Company's North Anna construction and operating license demonstration project with DOE. Project successes, lessons learned, and suggestions for improvement are discussed. Objectives of the North Anna COL project included preparation and submittal of a COLA to the USNRC incorporating ESBWR technology for a third unit a the North Anna Power Station site, support for the NRC review process and mandatory hearing, obtaining NRC approval of the COLA and issuance of a COL, and development of a business case necessary to support a decision on building a new nuclear power plant at the North Anna site.

  8. Efecto de los parámetros de procesamiento sobre las características cristalinas de la solución sólida Y(CoxMn1-xO3, x=0.6, 0.7

    Directory of Open Access Journals (Sweden)

    Fernández, J. F.

    2002-02-01

    Full Text Available The preparation and crystalline features of perovskite solid solution Y(CoxMn1-xO3, x=0.6, 0.7, belonging to the Co-rich region of the pseudobinary system YMnO3-YCoO3 have been studied. Dilatometric essays performed under different atmospheres have been carried out for determining the best conditions to obtain single-phase samples. Influence of the thermal cycle and of the sintering density on the appearance of secondary phases has been also established. Firing under O2 atmosphere favours the formation of the pure perovskite. The cooling rate plays an important role for inhibiting the formation of secondary phases. All the crystalline parameters depend ultimately on the final density of the polycrystalline bodies.Se han estudiado la preparación y las características cristalinas de la solución sólida Y(CoxMn1-xO3, x=0.6, 0.7, con estructura de tipo perovsquita, perteneciente a la región rica en Co del sistema seudobinario YMnO3-YCoO3. Se han llevado a cabo ensayos dilatométricos bajo diferentes atmósferas para determinar las mejores condiciones para obtener cerámicas monofásicas. Se ha establecido igualmente la influencia del ciclo térmico y de la densidad de sinterizado sobre la aparición de fases secundarias. La sinterización en oxígeno favorece la formación de la perovsquita pura. La velocidad de enfriamiento juega un importante papel sobre la inhibición de la formación de fases secundarias. Todos los parámetros cristalinos dependen finalmente de la densidad final de los materiales cerámicos.

  9. Influência do nível de performance na estratégia de ritmo de corrida em prova de 10 km de corredores recreacionais

    Directory of Open Access Journals (Sweden)

    Francisco de Assis MANOEL

    2015-09-01

    Full Text Available ResumoO objetivo do estudo foi verificar a influência do nível de performance na estratégia de ritmo de corrida de corredores recreacionais. Adicionalmente, objetivou-se descrever o comportamento da frequência cardíaca (FC obtida em prova de 10 km em pista de atletismo. Participaram 39 corredores recreacionais (31,5 ± 6,7 anos, experientes em provas de 10 km que realizaram uma performance nesta distância em pista de atletismo (400 m. A FC foi constantemente monitorada (Polar RS800 e o tempo a cada 400 m foi registrado para determinação da velocidade média (VM, posteriormente analisada a cada 2 km. Os participantes foram divididos em dois grupos de acordo com a VM alcançada nos testes: G1 = VM 10 km ≤ 11,81 (n = 20 e G2 = VM 10 km > 11,81 (n = 19. A comparação entre os valores de VM e FC obtidos nos diferentes momentos da performance para os dois grupos foi realizada pela Anova mista, adotando-se nível de significância de p < 0,05. Os valores de VM foram diferentes entre os grupos em todos os momentos analisados, com aumento significante da VM do momento 6-8 km para 8-10 km para o mesmo grupo. Os valores de FC foram diferentes apenas intra-grupos. No G1, houve aumento significante da FC a cada 2 km de prova. Para o G2, a FC aumentou do 2º ao 4º km e permaneceu estável até o 8º km, aumentando novamente nos últimos 2 km da performance. Concluímos que o nível de performance não influencia a estratégia de corrida de corredores recreacionais.

  10. Relevancia de los diferentes momentos del juego y de las acciones a balón parado (ABP en los rendimientos del FC Barcelona y Real Madrid durante la liga nacional de fútbol profesional 2011/12

    Directory of Open Access Journals (Sweden)

    Xavier Planes i Fontestad

    2015-08-01

    Full Text Available El estudio se centra en la relevancia de las fases dinámicas y estáticas en los rendimientos del FC Barcelona y Real Madrid. Utilizamos la metodología observacional con el fin de tratar de asociar los diferentes Momentos o Fases del juego (MJ y las Acciones a Balón Parado (ABP con la obtención de cada uno de los goles. Para conseguirlo, hemos creado un instrumento de observación ad hoc (IOX y hemos utilizado dos instrumentos de registro (LINCE y MOTS. Para el análisis de los datos del registro y la obtención de resultados, hemos utilizado las técnicas de comparación de proporciones con el software Statgraphics, habiendo encontrado, inicialmente, diferencias significativas entre los dos equipos únicamente en la fase defensiva.

  11. De uma política de idéias a uma política de presença? From a politics of ideas to a politics of presence?

    Directory of Open Access Journals (Sweden)

    ANNE PHILLIPS

    2001-01-01

    Full Text Available A crescente preocupação com o tema da exclusão política desafia o entendimento tradicional sobre os mecanismos representativos, em especial a percepção arraigada de que a chave da boa representação política está no programa e nas idéias compartilhadas entre representantes e representadas/os - sem qualquer referência à identidade das/os representantes. Contra isso, cada vez mais é afirmada a necessidade de presença física dos grupos excluídos nos locais de decisão, o que se traduz freqüentemente na adoção de cotas eleitorais. Mas não se trata de escolher uma ou outra forma de representação e sim de, compreendendo os limites de cada uma, buscar um sistema mais justo que incorpore tanto idéias quanto presença.Recent concern over the issue of political exclusion challenges traditional understanding of mechanisms of representation, specifically with regard to the conviction that the key to good political representation lies in the ideas and program shared by those who represent others and those who are represented -- with no reference as to the identity of those who represent. On the other hand, there is a growing claim for the physical presence of excluded groups in the locales where decisions are made which has frequently led to the adoption of electoral quotas. Nonetheless, more than just a matter of choosing one form of representation over another, we should understand the limitations of each, seeking a more just system that incorporates both presence and ideas.

  12. INTENSIDAD DE LA MUSICA: EFECTO SOBRE LA FRECUENCIA CARDIACA Y EL ESFUERZO PERCIBIDO DURANTE LA ACTIVIDAD FISICA

    Directory of Open Access Journals (Sweden)

    Jorge Marín Hernández

    2001-12-01

    Full Text Available La música ha sido ampliamente utilizada en la práctica de ejercicios aeróbicos en la industria deportiva. El propósito de este estudio fue comparar el efecto de diferentes intensidades de la música sobre la frecuencia cardiaca (FC y el esfuerzo percibido (EP durante ejercicio estandarizado en un cicloergómetro. 13 hombres y 5 mujeres voluntarios, físicamente activos (edad 20.6 ± 2.2 años realizaron una prueba bajo tres condiciones en diferentes días, asignadas en un diseño contrabalanceado de medidas repetidas: no música (NM, música a 70 dB, (M70 y música a 85 dB (M85. Ellos se ejercitaron por 20 min. con una carga de trabajo constante predeterminada y equivalente al 80% de su FCMax (kp = 1.47 ± 0.4, 90 rev/min. La música utilizada fue del tipo 'Merengue House' en español con un tempo de 131 ± 4.30 bpm, las diferentes intensidades fueron calibradas con un sonómetro. La FC y el EP fueron registrados a los 10 y 20 min. con un monitor de FC Polar y la escala EP-15 de Borg. Prueba FC 10 min. FC 20 min. EP 10 min. EP 20 min. NM 164.78 ± 8.37 172.11 ± 8.54 12.06 ±1.92 13.78 ±2.58 M70 165.11 ±11.16 173.00 ±12.05 12.00 ±2.11 13.56 ±2.89 M85 163.00 ± 7.58 170.17 ± 7.87 11.50 ±1.55 12.94 ±2.07 Tanto para FC como para EP un ANOVA 3 x 2 con medidas repetidas indicó que los promedios a los 20 min. fueron significativamente mayores que a los 10 min. (p<0.05. Las diferencias en FC y EP entre las tres condiciones no fueron significativas (p >0.05. Los resultados indican que los rangos de intensidades de música estudiados M70 y M85 no produjeron un efecto sobre el EP y la FC cuando se realizó ejercicio estandarizado en un cicloergómetro comparado con una condición sin música NM.

  13. Metabolic and process engineering for biodesulfurization in Gram-negative bacteria.

    Science.gov (United States)

    Martínez, I; El-Said Mohamed, M; Santos, V E; García, J L; García-Ochoa, F; Díaz, E

    2017-11-20

    Microbial desulfurization or biodesulfurization (BDS) is an attractive low-cost and environmentally friendly complementary technology to the hydrotreating chemical process based on the potential of certain bacteria to specifically remove sulfur from S-heterocyclic compounds of crude fuels that are recalcitrant to the chemical treatments. The 4S or Dsz sulfur specific pathway for dibenzothiophene (DBT) and alkyl-substituted DBTs, widely used as model S-heterocyclic compounds, has been extensively studied at the physiological, biochemical and genetic levels mainly in Gram-positive bacteria. Nevertheless, several Gram-negative bacteria have been also used in BDS because they are endowed with some properties, e.g., broad metabolic versatility and easy genetic and genomic manipulation, that make them suitable chassis for systems metabolic engineering strategies. A high number of recombinant bacteria, many of which are Pseudomonas strains, have been constructed to overcome the major bottlenecks of the desulfurization process, i.e., expression of the dsz operon, activity of the Dsz enzymes, retro-inhibition of the Dsz pathway, availability of reducing power, uptake-secretion of substrate and intermediates, tolerance to organic solvents and metals, and other host-specific limitations. However, to attain a BDS process with industrial applicability, it is necessary to apply all the knowledge and advances achieved at the genetic and metabolic levels to the process engineering level, i.e., kinetic modelling, scale-up of biphasic systems, enhancing mass transfer rates, biocatalyst separation, etc. The production of high-added value products derived from the organosulfur material present in oil can be regarded also as an economically viable process that has barely begun to be explored. Copyright © 2017 Elsevier B.V. All rights reserved.

  14. Competencias en I+D del personal que labora en los Centros de Investigación adscritos a la Escuela de Educación de la Universidad del Zulia

    Directory of Open Access Journals (Sweden)

    Maritza Torres

    2005-05-01

    Full Text Available Se estudian las competencias en I+D de investigadores de los Centros de Investigación de la Escuela de Educación de l Universidad del Zulia. Es una investigación descriptiva, transversal y de campo. La muestra fue de 36 unidades muestrales, con validación de 5 expertos y confiabilidad de Kuder-Richarson. Se encontró que existe un porcentaje bajo de doctorados, hay planeación tecnológica, organización para la innovación, la gestión tecnológica está dirigida a la adquisición de conocimientos, la evaluación es ex –post y on-going. Se da más importancia a las competencias relacionadas con el desempeño docente y menos a las relacionadas con el desarrollo de la investigación, creatividad e innovación.

  15. Vermicompostagem de lodo de esgoto urbano e bagaço de cana-de-açúcar Vermicomposting of urban sewage sludge and sugarcane bagasse

    Directory of Open Access Journals (Sweden)

    Carlos D. da Silva

    2002-12-01

    Full Text Available Com o objetivo de se avaliar alterações químicas no substrato orgânico no decorrer do processo de vermicompostagem de diferentes combinações de lodo de esgoto urbano (LEU com bagaço de cana-de-açúcar (BC, além de sua qualidade final como adubo orgânico, realizou-se um experimento em laboratório e campo. Os vermicompostos foram obtidos a partir dos tratamentos T1 = 150 kg de LEU; T2 = 121,6 kg de LEU + 97,30 kg de BC; T3 = 59 kg de LEU + 97,30 kg de BC; T4 = 35,5 kg de LEU + 97,30 kg de BC e T5 = 23,10 kg de LEU + 97,30 kg de BC. Para a realização do processo de vermicompostagem, foram utilizadas minhocas vermelhas-da-Califórnia (Eisenia fetida. As características químicas determinadas nos vermicompostos produzidos indicaram que os mesmos podem ser utilizados como adubo orgânico, principalmente no que se refere ao conteúdo de matéria orgânica, pH, relação C/N, concentração de nitrogênio e fósforo. As concentrações de metais pesados situaram-se abaixo dos limites de toxicidade, considerados pela legislação internacional. Aumento da proporção de LEU como substrato proporcionou aumento na concentração final de N, Ca e Mg, diminuídas de K.The purpose of the present study was to evaluate the chemical alterations in the substrate with time of the vermicomposting involving different combinations of urban sewage sludge (USS and sugarcane bagasse (SB, besides it's quality as organic fertilizer. The vermicomposts were obtained from the treatments T1= 150 kg of USS; T2 = 121.6 kg of USS + 97.30 kg of SB; T3 = 59 kg of USS + 97.30 kg of SB; T4 = 35.5 kg of USS + 97.30 kg of SB; T5= 23.10 kg of USS + 97.30 kg of SB. For the vermicomposting process, Red-California earthworm (Eisenia fetida was utilized. Chemical characteristics determined in the vermicomposts indicate that it can be used as organic fertilizer, mainly with regard to organic matter content, pH, C/N ratio, nitrogen and phosphorus levels. Heavy metal

  16. A estabilização heterodoxa no brasil: idéias e redes políticas

    Directory of Open Access Journals (Sweden)

    Pio Carlos

    2001-01-01

    Full Text Available O artigo discute o papel das idéias e das "redes políticas" na explicação do conteúdo de políticas de estabilização no Brasil. As idéias heterodoxas dos economistas da Pontifícia Universidade Católica do Rio de Janeiro (PUC-RJ são apresentadas e comparadas ao conteúdo de dois programas de estabilização implementados no país: o Plano Cruzado (1986 e o Plano Real (desde 1993. Variáveis políticas são apontadas para explicar por que o segundo programa apresenta maior semelhança com as idéias originais dos economistas do que o primeiro, o que, segundo o autor, explica, em grande medida, seu maior êxito em reduzir a inflação.

  17. Analysis of the Effects of the Bruton's tyrosine kinase (Btk) Inhibitor Ibrutinib on Monocyte Fcγ Receptor (FcγR) Function.

    Science.gov (United States)

    Ren, Li; Campbell, Amanda; Fang, Huiqing; Gautam, Shalini; Elavazhagan, Saranya; Fatehchand, Kavin; Mehta, Payal; Stiff, Andrew; Reader, Brenda F; Mo, Xiaokui; Byrd, John C; Carson, William E; Butchar, Jonathan P; Tridandapani, Susheela

    2016-02-05

    The irreversible Bruton's tyrosine kinase (Btk) inhibitor ibrutinib has shown efficacy against B-cell tumors such as chronic lymphocytic leukemia and B-cell non-Hodgkin lymphoma. Fcγ receptors (FcγR) on immune cells such as macrophages play an important role in tumor-specific antibody-mediated immune responses, but many such responses involve Btk. Here we tested the effects of ibrutinib on FcγR-mediated activities in monocytes. We found that ibrutinib did not affect monocyte FcγR-mediated phagocytosis, even at concentrations higher than those achieved physiologically, but suppressed FcγR-mediated cytokine production. We confirmed these findings in macrophages from Xid mice in which Btk signaling is defective. Because calcium flux is a major event downstream of Btk, we tested whether it was involved in phagocytosis. The results showed that blocking intracellular calcium flux decreased FcγR-mediated cytokine production but not phagocytosis. To verify this, we measured activation of the GTPase Rac, which is responsible for actin polymerization. Results showed that ibrutinib did not inhibit Rac activation, nor did the calcium chelator 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid tetrakis(acetoxymethyl ester). We next asked whether the effect of ibrutinib on monocyte FcγR-mediated cytokine production could be rescued by IFNγ priming because NK cells produce IFNγ in response to antibody therapy. Pretreatment of monocytes with IFNγ abrogated the effects of ibrutinib on FcγR-mediated cytokine production, suggesting that IFNγ priming could overcome this Btk inhibition. Furthermore, in monocyte-natural killer cell co-cultures, ibrutinib did not inhibit FcγR-mediated cytokine production despite doing so in single cultures. These results suggest that combining ibrutinib with monoclonal antibody therapy could enhance chronic lymphocytic leukemia cell killing without affecting macrophage effector function. © 2016 by The American Society for Biochemistry

  18. Analysis of the Effects of the Bruton's tyrosine kinase (Btk) Inhibitor Ibrutinib on Monocyte Fcγ Receptor (FcγR) Function*

    Science.gov (United States)

    Ren, Li; Campbell, Amanda; Fang, Huiqing; Gautam, Shalini; Elavazhagan, Saranya; Fatehchand, Kavin; Mehta, Payal; Stiff, Andrew; Reader, Brenda F.; Mo, Xiaokui; Byrd, John C.; Carson, William E.; Butchar, Jonathan P.; Tridandapani, Susheela

    2016-01-01

    The irreversible Bruton's tyrosine kinase (Btk) inhibitor ibrutinib has shown efficacy against B-cell tumors such as chronic lymphocytic leukemia and B-cell non-Hodgkin lymphoma. Fcγ receptors (FcγR) on immune cells such as macrophages play an important role in tumor-specific antibody-mediated immune responses, but many such responses involve Btk. Here we tested the effects of ibrutinib on FcγR-mediated activities in monocytes. We found that ibrutinib did not affect monocyte FcγR-mediated phagocytosis, even at concentrations higher than those achieved physiologically, but suppressed FcγR-mediated cytokine production. We confirmed these findings in macrophages from Xid mice in which Btk signaling is defective. Because calcium flux is a major event downstream of Btk, we tested whether it was involved in phagocytosis. The results showed that blocking intracellular calcium flux decreased FcγR-mediated cytokine production but not phagocytosis. To verify this, we measured activation of the GTPase Rac, which is responsible for actin polymerization. Results showed that ibrutinib did not inhibit Rac activation, nor did the calcium chelator 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid tetrakis(acetoxymethyl ester). We next asked whether the effect of ibrutinib on monocyte FcγR-mediated cytokine production could be rescued by IFNγ priming because NK cells produce IFNγ in response to antibody therapy. Pretreatment of monocytes with IFNγ abrogated the effects of ibrutinib on FcγR-mediated cytokine production, suggesting that IFNγ priming could overcome this Btk inhibition. Furthermore, in monocyte-natural killer cell co-cultures, ibrutinib did not inhibit FcγR-mediated cytokine production despite doing so in single cultures. These results suggest that combining ibrutinib with monoclonal antibody therapy could enhance chronic lymphocytic leukemia cell killing without affecting macrophage effector function. PMID:26627823

  19. FINAL TECHNICAL REPORT Chagas Prevention in Central America

    International Development Research Centre (IDRC) Digital Library (Canada)

    Carlota Monroy

    INFORME FINAL: PROYECTO ID 106531 - 001. CORRESPONDIENTE AL PERIODO DEL 1 DE MARZO 2011 AL 31 DE MARZO 2014. CONTENIDO. 1. Información general ……………………………………………………………1. 2. Resumen del proyecto ………………………………………………………….2. 3. Metas objetivos ...

  20. Farelo de canola na alimentação de alevinos de carpa-capim (Ctenopharyngodon idella V. Use of canola meal in the diet of grasscarp fry (Ctenopharyngodon idella V.

    Directory of Open Access Journals (Sweden)

    Valéria Rossetto Barriviera Furuya

    1998-10-01

    Full Text Available Foram avaliados os efeitos da substituição da proteína do farelo de soja (FS pela proteína do farelo de canola (FC, em dietas para alevinos de carpa-capim (Ctenopharyngodon idella. Foram utilizados 100 alevinos com peso vivo médio de 1,33 gramas e comprimento médio de 5,06cm, distribuídos em um delineamento inteiramente casualizado, com cinco tratamentos e quatro repetições, em 20 aquários com capacidade para 50 litros, com 5 peixes por unidade. Foram utilizados cinco níveis de substituição de proteína do FS pela do FC (0,00%; 20,00%; 40,00%; 60,00% e 80,00%, o que correspondeu a 0,00%; 8,03%; 16,10%; 24;10% e 32,15% de inclusão de FC nas dietas. As dietas, formuladas de modo a serem isoprotéicas, isocálcicas e isofosfóricas, foram fornecidas durante 28 dias; ao mesmo tempo, os parâmetros físico-químicos foram monitorados. Ao final do período experimental, foram avaliadas as características de desempenho. O ganho de peso, taxa de crescimento relativo, taxa de eficiência protéica, conversão alimentar, sobrevivência e custo de ração/peso ganho não foram afetados pelos níveis de substituição da proteína do FS pela do FC. Entretanto, foram observados efeitos quadráticos para o peso final (Y = 2,39190 + 0,01327X - 0,00019X2, r2 = 0,78, comprimento total (Y = 6,15270 + 0,01195X - 0,00016X2, r2 = 0,86 e incremento em comprimento total (Y = 1,10340 + 0,01198X - 0,00016X2, r2 = 0,86. Os parâmetros físico-químicos permaneceram dentro dos níveis adequados. O nível de substituição de 35,79% de proteína do FS pela do FC ou a inclusão de 14,40% de FC na dieta levou ao melhor desempenho em alevinos de carpa-capim.One hundred fry with 1.33 mean weight and 5.06cm mean length distributed in twenty 50-liter aquarium, with 5 fish each, were used in a completely randomized plotted experiment, with 4 replications, to evaluate the effects of soybean meal (SM protein replacement by canola meal (CM protein in diets for

  1. Optimización del mantenimiento preventivo, utilizando las técnicas de diagnóstico integral. Resultados finales y evaluación económica; Optimization of the Preventive Maintenance Using the Techniques of Integral Diagnosis. Final Results and Economic Evalua

    Directory of Open Access Journals (Sweden)

    Pedro L Hernández Domínguez

    2011-02-01

    Full Text Available En este trabajo se obtienen los resultados finales y la evaluación económica de la aplicación de la metodologíaque aporta el diagnóstico integral (DI, presentada por los autores en los artículos anteriores, con la finalidad deintroducir el mantenimiento basado en la condición (MBC como una forma de mejoramiento o perfeccionamientodel mantenimiento preventivo planificado (MPP que se desarrolla en las centrales termoeléctricas (CCTT cubanas. In this paper, the authors obtained the final results and the economic evaluation of the application methodologythat contributes the integral diagnosis (ID, presented by they in a previous articles, with the purpose of introducingthe condition based maintenance (CBM like a form of improvement the Planned Preventive Maintenance(PPM that is developed in the cuban thermoelectric power stations.

  2. ID card number detection algorithm based on convolutional neural network

    Science.gov (United States)

    Zhu, Jian; Ma, Hanjie; Feng, Jie; Dai, Leiyan

    2018-04-01

    In this paper, a new detection algorithm based on Convolutional Neural Network is presented in order to realize the fast and convenient ID information extraction in multiple scenarios. The algorithm uses the mobile device equipped with Android operating system to locate and extract the ID number; Use the special color distribution of the ID card, select the appropriate channel component; Use the image threshold segmentation, noise processing and morphological processing to take the binary processing for image; At the same time, the image rotation and projection method are used for horizontal correction when image was tilting; Finally, the single character is extracted by the projection method, and recognized by using Convolutional Neural Network. Through test shows that, A single ID number image from the extraction to the identification time is about 80ms, the accuracy rate is about 99%, It can be applied to the actual production and living environment.

  3. Immunization with avian metapneumovirus harboring chicken Fc induces higher immune responses.

    Science.gov (United States)

    Paudel, Sarita; Easwaran, Maheswaran; Jang, Hyun; Jung, Ho-Kyoung; Kim, Joo-Hun; Shin, Hyun-Jin

    2016-07-15

    In this study, we evaluated the immune responses of avian metapneumovirus harboring chicken Fc molecule. Stable Vero cells expressing chicken Fc chimera on its surface (Vero-cFc) were established, and we confirmed that aMPV grown in Vero-cFc incorporated host derived chimera Fc into the aMPV virions. Immunization of chicken with aMPV-cFc induced higher level of antibodies and inflammatory cytokines; (Interferon (IFN)-γ and Interleukin (IL)-1β) compared to those of aMPV. The increased levels of antibodies and inflammatory cytokines in chicken immunized with aMPV-cFc were statistically significantly (p<0.05) to that of aMPV and control. The aMPV-cFc group also generated the highest neutralizing antibody response. After challenges, chickens immunized with aMPV-cFc showed much less pathological signs in nasal turbinates and trachea so that we could confirm aMPV-cFc induced higher protection than that of aMPV. The greater ability of aMPV harboring chicken Fc to that of aMPV presented it as a possible vaccine candidate. Copyright © 2016 Elsevier B.V. All rights reserved.

  4. Analytical FcRn affinity chromatography for functional characterization of monoclonal antibodies

    Science.gov (United States)

    Schlothauer, Tilman; Rueger, Petra; Stracke, Jan Olaf; Hertenberger, Hubert; Fingas, Felix; Kling, Lothar; Emrich, Thomas; Drabner, Georg; Seeber, Stefan; Auer, Johannes; Koch, Stefan; Papadimitriou, Apollon

    2013-01-01

    The neonatal Fc receptor (FcRn) is important for the metabolic fate of IgG antibodies in vivo. Analysis of the interaction between FcRn and IgG in vitro might provide insight into the structural and functional integrity of therapeutic IgG that may affect pharmacokinetics (PK) in vivo. We developed a standardized pH gradient FcRn affinity liquid chromatography method with conditions closely resembling the physiological mechanism of interaction between IgG and FcRn. This method allows the separation of molecular IgG isoforms, degradation products and engineered molecules based on their affinity to FcRn. Human FcRn was immobilized on the column and a linear pH gradient from pH 5.5 to 8.8 was applied. FcRn chromatography was used in comparison to surface plasmon resonance to characterize different monoclonal IgG preparations, e.g., oxidized or aggregated species. Wild-type and engineered IgGs were compared in vitro by FcRn chromatography and in vivo by PK studies in huFcRn transgenic mice. Analytical FcRn chromatography allows differentiation of IgG samples and variants by peak pattern and retention time profile. The method can distinguish: 1) IgGs with different Fabs, 2) oxidized from native IgG, 3) aggregates from monomer and 4) antibodies with mutations in the Fc part from wild-type IgGs. Changes in the FcRn chromatographic behavior of mutant IgGs relative to the wild-type IgG correlate to changes in the PK profile in the FcRn transgenic mice. These results demonstrate that FcRn affinity chromatography is a useful new method for the assessment of IgG integrity. PMID:23765230

  5. Farelo de canola na alimentação do piavuçu, Leporinus macrocephalus (Garavello & Britski, na fase inicial Canola bran in piavuçu Leporinus macrocephalus (Garavello & Britski feeding, during initial phase

    Directory of Open Access Journals (Sweden)

    Valéria Rossetto Barriviera Furuya

    2002-04-01

    Full Text Available O presente estudo teve por objetivo determinar os efeitos da inclusão de farelo de canola (FC em substituição à proteína do farelo de soja (FS na alimentação do piavuçú, Leporinus macrocephalus (Garavello & Britski (Characiformes, Anastomidae, na fase inicial. Foram utilizados 100 alevinos (8,51 ± 0,07g, distribuídos em blocos casualizados com quatro tratamentos, cinco repetições, sendo que cada unidade experimental era constituída por cinco peixes. Foram elaboradas quatro rações isocalóricas (3.000kcal ED/kg e isoprotéicas (30% de PB com base em milho, farelo de soja e farinha de peixe, contendo 0%, 19%,12%; 38%,24% e 57,36% de FC. A análise de variância não apresentou efeitos dos níveis de inclusão de FC sobre as variáveis de consumo, sobrevivência, rendimento e composição química da carcaça, gordura visceral e índice hepatossomático. Foi observado efeito quadrático dos níveis de inclusão sobre a porcentagem de ganho de peso, ocorrendo o ponto máximo no nível de 19,11% de inclusão de FC. Com o aumento nos níveis de FC, foi observado piora linear sobre a conversão alimentar e taxa de eficiência protéica. A inclusão de 11,19% de FC resultou em melhor desempenho e rendimento de carcaça.This research aimed to investigate the effects of canola bran (CB inclusion, replacing the soybean bran crude protein in piavuçu diet, Leporinus macrocephalus (Garavello & Britski (Characiformes, Anastomidae, in initial phase. One hundred fingerlings (8.51 ± 0.07g were assigned to a completely randomized block design with five replications, totalizing 25 fishes per treatment. Four isocaloric (3,000kcal ED/kg and isoproteic (30% CP diets were formulated, based on corn, soybean bran and fish flour, containing 0%; 19.12%; 38.24% and 57.36% CB. Variance analysis showed no effect of CB inclusion on feed intake survival, carcass yield and composition, visceral fat and hepato somatic index. Quadratic effect of CM inclusion was

  6. 30 CFR 18.97 - Inspection of machines; minimum requirements.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Inspection of machines; minimum requirements... TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS ELECTRIC MOTOR-DRIVEN MINE EQUIPMENT AND ACCESSORIES Field Approval of Electrically Operated Mining Equipment § 18.97 Inspection of machines; minimum...

  7. Desempenho produtivo de Pseudoplatystoma corruscans estocados em sistemas de criação: semi-intensivo (viveiro escavado e intensivo (tanque-rede Growth performance of Pseudoplatystoma corruscans stocked in rearing systems: semi-intensive (ponds and intensive (cages

    Directory of Open Access Journals (Sweden)

    Andressa Daniela de Sousa Liranço

    2011-03-01

    were: temperature = 24.08°C; pH=6.89; dissolved oxygen = 7.57mg L-1. The values of mean final length (P=74.07±4.34cm; C=70.33±5.02cm and final weight (P=3.41±0.52kg; C=2.94±0.60kg they showed similar development in both systems. Means of factor condition - K - (0.009-0.036; daily weight gain - DWG - (9.29g day-1-8.95g day-1; feed conversion- FC - (3.09-4.15; Total ration consume - TRC - (29.6g day-1-74.16 g day-1; growing index - IC - (0.219-0.215; survival - S - (97.33-90.67% for P e C, respectively. Through the variance of analysis can be verified that there are significative interactions of the parameters between the culture systems and months (P<0.05. The produced weight of fish was R$ 8.76 (US$ 2.85 and R$ 8.73 (US$ 2.33 for P and C. Although P showed best performance during the period and economic vantage, the growing index demonstrated that both systems had similar development.

  8. Ocular findings in Brazilian identical twins with Cohen syndrome: case report Achados oftalmológicos em gêmeos idênticos brasileiros com síndrome de Cohen: relato de caso

    Directory of Open Access Journals (Sweden)

    Priscila Hae Hyun Rim

    2009-12-01

    Full Text Available A case of identical male twins with Cohen syndrome who present multiple ophthalmic findings is reported. The patients were identical 16 year-old twin boys who showed down slanting eyelids, mild ptosis, high-grade myopia, small cortical lens opacities, posterior subcapsular cataracts, myotic and corectopic pupils with poor dilation due to focal iris atrophy and retinochoroidal dystrophy. Ophthalmologists must be aware of the ocular and systemic findings of Cohen syndrome in the evaluation of young patients with mental retardation and visual impairment.Relata-se caso de gêmeos idênticos com síndrome de Cohen que apresentam múltiplos achados oftalmológicos. Os pacientes eram gêmeos idênticos, do sexo masculino, que apresentavam pálpebras em forma de onda, ptose moderada, alta miopia, opacidades cristalinianas corticais discretas, catarata subcapsular posterior, pupilas mióticas e corectópicas com pobre dilatação devido à atrofia focal de íris, além de distrofia retinocoroidiana. Os oftalmologistas devem estar atentos quanto aos achados oftalmológicos e sistêmicos da síndrome de Cohen na avaliação de pacientes jovens com retardo mental e baixa visão.

  9. Alimentação de juvenis de carpa capim com dietas à base de farelos vegetais e forragem = Feeding grass carp juveniles with plant-protein diets and forage

    Directory of Open Access Journals (Sweden)

    Cátia Aline Veiverberg

    2010-07-01

    Full Text Available Para avaliar o potencial dos ingredientes de origem vegetal como substitutos da farinha de carne suína em dietas para Ctenopharyngodon idella Valenciennes, (1844 (carpa capim, 180 juvenis (15 por tanque foram criados durante 60 dias em sistema de recirculação de água. Foi avaliada a substituição da farinha de carne suína (FCS por farelo de canola (FC, farelo de girassol (FG e a mistura dos farelos de canola e girassol (FCG. As dietas também continham farelo de soja como fonte proteica. O consumo diário de forragem (1,24 a 2,11% do peso vivo não diferiu entre os tratamentos. Peso final, ganho em peso, taxa de crescimento específico e conversão alimentar aparente não diferiram estatisticamente entre as dietas. O rendimento de filé foi maior nos tratamentos FC e FCG, enquanto o índice digestivossomático foi maior nos tratamentos FG e FCG. Maior teor degordura e menores teores de proteína no peixe inteiro e de cinzas no filé foram obtidos no tratamento FCG. Os filés dos tratamentos FCS e FCG apresentaram maior valor de luminosidade. Os peixes da dieta FCS apresentaram maiores valores de proteínas, triglicerídeos e colesterol total no soro. Conclui-se que os farelos de canola e girassol podem ser utilizados em dietas para recria da carpa capim.To evaluate the potential of plant-protein sources to replace porcine meat meal in diets for grass carp juveniles, 180 fish (15 per tank were reared for 60 days in a re-use water system. We evaluated the replacement of porcine meat meal (FCS for canola meal (FC, sunflowermeal (FG or a mixture of canola and sunflower meal (FCG. The diets were also composed of soybean meal as a protein source. Daily forage intake ranged from 1.24 to 2.11% body weight and did not differ among treatments. Final weight, weight gain, specific growth rate and feed conversion rate did not differ statistically among diets. The fillet yield was higher in FC and FCG diets, while the digestive-somatic index was higher

  10. Cholecystokinin (CCK) functional cholescintigraphy (FC) in patients suspected of acalculous biliary disease (ABD)

    International Nuclear Information System (INIS)

    Fink-Bennett, D.; De Ridder, P.; Kolozsi, W.; Gordon, R.; Rapp, J.

    1984-01-01

    To determine if CCK FC can aid in the diagnosis (Dx.) of ABD, the authors retrospectively analyzed the max. gallbladder (GB) ejection fraction response (EFR) to CCK in 240 patients (pts.) with persistent symptoms of biliary colic, a normal GB Ultrasound exam and/or OCG. Each pt. (NPO after 12 A.M.) received 5 mCi of technetium (Tc)-99 Hepatolite. After max GB filling, .02 μg/kg CCK was administered (1-3 minutes) I.V. Background corrected GB EFs were determined q.5 min x4 by ratioing the pre-CCK GB cts. minus post-CCK GB cts. to pre-CCK GB cts. In 131/240 pts. the max. GBEFR was 35%. Eleven underwent surgery, 98 medical Rx. 4/11 Cx. apts had CAC, 7 were normal. Of the 98 medical Rx. pts. 21 lack followup, 71 are clinically felt not to have ABD; 6 are felt to have ABD. CCK FC appears to be a useful test for the detection of ABD. Its predictive value (GBEF <35%) in Cx. pts. is 97%; in all pts. (assuming medical Rx. correct), 94% (sensitivity - 91%, specificity - 93%)

  11. The Fc-receptor III of cultured human monocytes. Structural similarity with FcRIII of natural killer cells and role in the extracellular lysis of sensitized erythrocytes

    NARCIS (Netherlands)

    Klaassen, R. J.; Ouwehand, W. H.; Huizinga, T. W.; Engelfriet, C. P.; von dem Borne, A. E.

    1990-01-01

    FcRIII is not present on peripheral blood monocytes, but becomes expressed upon culturing and can be demonstrated on tissue macrophages. We studied the expression of FcRIII of cultured monocytes in detail and compared its structure with FcRIII of neutrophils and NK cells. The cell density of FcRIII

  12. 32 CFR 842.97 - Referring a claim to the US Attorney or the Department of Justice.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Referring a claim to the US Attorney or the Department of Justice. 842.97 Section 842.97 National Defense Department of Defense (Continued) DEPARTMENT OF... United States (31 U.S.C. 3701, 3711-3719) § 842.97 Referring a claim to the US Attorney or the Department...

  13. Um barão brasileiro no congresso internacional de Buenos Aires: as idéias pedagógicas de Abílio César Borges, barão de Macahubas

    Directory of Open Access Journals (Sweden)

    Dermeval Saviani

    2012-06-01

    Full Text Available Partindo da intervenção do Barão de Macahubas em 2 de maio de 1882 na 9° seção do Congresso Pedagógico Internacional de Buenos Aires, este trabalho situa a vida e a obra de Abílio César Borges no contexto do Império do Brasil explicitando suas idéias pedagógicas com destaque para os seguintes temas: a concepção de homem e de infância e aprendizagem; b o papel da escola e sua organização; c os conteúdos do ensino; d os métodos de ensino; e a proeminência da educação moral. À guisa de conclusão busca-se esclarecer o significado dessas idéias pedagógicas explicitando as controvérsias que elas suscitaram, o caráter moderno da pedagogia preconizada a serviço, porém, de uma educação tradicional e, finalmente, o lugar de Abílio César Borges, o Barão de Macahubas, na história e na historiografia da educação brasileira. Pedagogo autodidata, Abílio César Borges era médico de formação, tendo desenvolvido suas idéias educacionais praticando-as nos colégios que fundou e se servindo das experiências de outros países, do que dão testemunho as três viagens que fez à Europa para observar o funcionamento das escolas, adquirir materiais didáticos e contratar professores. Palavras-chave: história da educação, barão de Macahubas, congresso pedagógico.   Abstract Grounded on Baron of Macahubas intervention in the 9th section of International Pedagogic Congress of Buenos Aires, on May 2, 1882, this paper places the life and works of Abílio César Borges in the context of Brazil' s Empire. It describes his pedagogic ideas, wilh emphasis to the following issues: a conception of man and of childhood and learning; b school role and its organization; c teaching contents; d teaching methods; e the prominence of moral education. What is pursued as conclusion is to enlighten the meaning of these pedagogic ideas, bringing to Iight: i the controversies they raised; li the modern character of his pedagogy, although it was

  14. Single chain Fc-dimer-human growth hormone fusion protein for improved drug delivery.

    Science.gov (United States)

    Zhou, Li; Wang, Hsuan-Yao; Tong, Shanshan; Okamoto, Curtis T; Shen, Wei-Chiang; Zaro, Jennica L

    2017-02-01

    Fc fusion protein technology has been successfully used to generate long-acting forms of several protein therapeutics. In this study, a novel Fc-based drug carrier, single chain Fc-dimer (sc(Fc) 2 ), was designed to contain two Fc domains recombinantly linked via a flexible linker. Since the Fc dimeric structure is maintained through the flexible linker, the hinge region was omitted to further stabilize it against proteolysis and reduce FcγR-related effector functions. The resultant sc(Fc) 2 candidate preserved the neonatal Fc receptor (FcRn) binding. sc(Fc) 2 -mediated delivery was then evaluated using a therapeutic protein with a short plasma half-life, human growth hormone (hGH), as the protein drug cargo. This novel carrier protein showed a prolonged in vivo half-life and increased hGH-mediated bioactivity compared to the traditional Fc-based drug carrier. sc(Fc) 2 technology has the potential to greatly advance and expand the use of Fc-technology for improving the pharmacokinetics and bioactivity of protein therapeutics. Copyright © 2016 Elsevier Ltd. All rights reserved.

  15. Desempenho vegetativo e produtivo de cultivares e linhagens de soja de ciclo precoce no município de Piracicaba-SP

    Directory of Open Access Journals (Sweden)

    CÂMARA G.M.S.

    1998-01-01

    Full Text Available Como parte da rede oficial do Estado de São Paulo relativa à competição de linhagens de soja, desenvolveu-se no município de Piracicaba-SP, durante o ano agrícola 1996/97, experimento de campo visando avaliar o desempenho vegetativo e produtivo de linhagens e cultivares de soja (Glycine max L. Merrill pertencentes ao ciclo de maturação precoce. Delineado em blocos ao acaso com 20 tratamentos (linhagens e cultivares e 4 repetições, o experimento foi instalado em Terra Roxa Estruturada eutrófica. As parcelas foram constituídas por 4 linhas espaçadas entre si de 0,50 m com 5,0 m de comprimento. Como padrões de comparação das novas linhagens, foram utilizados os cultivares IAS-5 (atualmente o mais cultivado no Estado de São Paulo e IAC-17 (com elevada produtividade nos últimos ensaios no Estado de São Paulo. Foram avaliadas as seguintes características: estande inicial; época de florescimento; época de maturação; altura de planta no florescimento e na maturação; altura de inserção da primeira vagem; grau de acamamento e rendimento em grãos. Concluiu-se que: a baixo estande de plantas promoveu menor altura final, menor altura de inserção de vagem e menor rendimento em grãos; b as linhagens BR 92-4428, BR 92-6528, IAC 93-680, IAC 90-938, IDS 413-F4, IAC 93-598 e IAC 90-1000, foram as mais produtivas, superando ambos os padrões; c as linhagens FT 90-2687 e BR 92-5261, apresentaram os piores rendimentos.

  16. Recovery. Oxygen Transport Membrane-Based OxyCombustion for CO2 Capture from Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Kelly, Sean [Praxair Inc, Tonawanda, NY (United States); Geary, Joan [Praxair Inc, Tonawanda, NY (United States); Chakravrti, Shrikar [Praxair Inc, Tonawanda, NY (United States); Wilson, Jamie [Praxair Inc, Tonawanda, NY (United States); Christie, Max [Praxair Inc, Tonawanda, NY (United States); Peck, John [Praxair Inc, Tonawanda, NY (United States); Li, Juan [Praxair Inc, Tonawanda, NY (United States); Lane, Jonathan [Praxair Inc, Tonawanda, NY (United States); Gonzalez, Javier [Praxair Inc, Tonawanda, NY (United States); Lu, Yunxiang [Praxair Inc, Tonawanda, NY (United States); Biradar, Mahesh [Praxair Inc, Tonawanda, NY (United States); Robinson, Chuck [Praxair Inc, Tonawanda, NY (United States); Lin, Jiefeng [Praxair Inc, Tonawanda, NY (United States); Plonczak, Pawel [Praxair Inc, Tonawanda, NY (United States); Lu, Zigui [Praxair Inc, Tonawanda, NY (United States); Swami, Sadashiv [Praxair Inc, Tonawanda, NY (United States); Stuckert, Ines [Praxair Inc, Tonawanda, NY (United States)

    2015-12-22

    This Final report documents and summarizes all of the work performed for the DOE award DE-FC26-07NT43088 during the period from April 2007 - June 2012. This report outlines accomplishments for the following tasks: Task 1 – Process and Systems Engineering, Task 2 – OTM Performance Improvement, Task 3 – OTM Manufacturing Development, Task 4 - Laboratory Scale Testing and Task 5 – Project Management.

  17. L’idéologie du mouvement Oustachi de 1930 à 1941 The Oustachi movement ideology from 1930 to 1941

    Directory of Open Access Journals (Sweden)

    Stefan Sipic

    2012-02-01

    Full Text Available Quelles sont les racines idéologiques du mouvement oustachi d’Ante Pavelić, dans quelle mesure et depuis quelle date est-il purement fasciste ? Si le fascisme italien semble être un modèle pour Pavelić, peut-on pour autant considérer le mouvement oustachi comme fasciste ? Quelles sont ses racines idéologiques ? La politique qui engendra les massacres de 1941 était-elle inhérente à l’idéologie du mouvement dès les années 1930 ? Telles sont les questions auxquelles cette communication veut répondre. On peut dater la naissance de l’organisation oustachie au printemps 1930 sous l’appellation UHRO. Même s’il est soumis à l’influence très forte de l’Italie mussolinienne, le mouvement oustachi ne peut être considéré comme un mouvement purement fasciste avant 1941, pour Ante Pavelić, son but se résume à la création d’un État croate indépendant dont lui-même sera le chef absolu. La « question serbe » n’est pas directement abordée dans ces années-là, mais il est clair que le discours change vers la fin des années 30 et qu’à partir de 1941, dans des conditions exceptionnelles, l’idéologie oustachie s’inspirera directement du fascisme et du national-socialisme.If Italian fascism was a model for Pavelić, could the Oustachi movement be considered fascist? What were its ideological roots? Had the policies that led to the 1941 massacres been inherent to the ideology of the movement ever since the 1930s? These are the questions that this communication addresses. The birth of the Oustachi organisation, called UHRO, can be traced to the spring of 1930. Even if it succumbed to the powerful influence of Mussolini’s Italy, the Oustachi revolutionary movement cannot be considered purely fascist. Before 1941, for Ante Pavelić the goal of the movement boiled down to the creation of an independent Croatian state of which he himself would control absolutely. The 'Serb question' was not explicitly raised

  18. Thermal decomposition of FC(O)OCH3 and FC(O)OCH2CH3.

    Science.gov (United States)

    Berasategui, M; Argüello, G A; Burgos Paci, M A

    2018-05-09

    The thermal decomposition of methyl and ethyl formates has been extensively studied due to their importance in the oxidation of several fuels, pesticidal properties and their presence in interstellar space. We hitherto present the study of the thermal decomposition of methyl and ethyl fluoroformates, which could help in the elucidation of the reaction mechanisms. The reaction mechanisms were studied using FTIR spectroscopy in the temperature range of 453-733 K in the presence of different pressures of N2 as bath gas. For FC(O)OCH3 two different channels were observed; the unimolecular decomposition which is favored at higher temperatures and has a rate constant kFC(O)OCH3 = (5.3 ± 0.5) × 1015 exp[-(246 ± 10 kJ mol-1/RT)] (in units of s-1) and a bimolecular channel with a rate constant kFC(O)OCH3 = (1.6 ± 0.5) × 1011 exp[-(148 ± 10 kJ mol-1/RT)] (in units of s-1 (mol L)-1). However for ethyl formate, only direct elimination of CO2, HF and ethylene operates. The rate constants of the homogeneous first-order process fit the Arrhenius equation kFC(O)OCH2CH3 = (2.06 ± 0.09) × 1013 exp[-(169 ± 6 kJ mol-1/RT)] (in units of s-1). The difference between the mechanisms of the two fluoroformates relies on the stabilization of a six-centered transition state that only exists for ethyl formate. First principles calculations for the different channels were carried out to understand the dynamics of the decomposition.

  19. Fc-receptors and surface immunoglobulins in cells of the hairy cell leukemia

    International Nuclear Information System (INIS)

    Rieber, E.P.; Linke, R.P.; Riethmueller, G.; Heyden, H.W. von; Waller, H.D.

    1976-01-01

    Using 125 I-labelled aggregated IgG in a quantitative assay a strong expression of Fc-receptors was found on the leukemic cells of a patient with hairy cell leukemia. The Fc-receptor activity on these cells was much higher than that on monocytes and B-lymphocytes from normal blood. Surface immunoglobulins were detected by radioautography using radioactively labelled (Fab') 2 -fragments of monospecific antibodies directed against immunoglobulin heavy chains. Prior to radioautography the cells were stained for the tartrate resistant acid phosphatase. It is found that all cells containing this enzyme bore delta-chains on their surface. On more than 90% of these cells a simultaneous expression of μ-chains was detected. γ-chains could only be demonstrated on cells which were negative for the tartrate resistant acid phosphatase; part of these cells, however, were hairy cells by morphological criteria. (orig.) [de

  20. Multiple Plasmodium falciparum erythrocyte membrane protein 1 variants per genome can bind IgM via its Fc fragment Fcμ

    DEFF Research Database (Denmark)

    Jeppesen, Anine; Ditlev, Sisse Bolm; Soroka, Vladyslav

    2015-01-01

    with severe clinical manifestations, such as cerebral malaria in children and placental malaria in pregnant women. PfEMP1 that can bind the Fc part of IgM (Fcμ) characterizes one such type, although the functional significance of this IgM binding to PfEMP1 remains unclear. In this study, we report...... resemble the rosette-mediating and IgM-binding PfEMP1 HB3VAR06, but none of them mediated formation of rosettes. We could map the capacity for Fc-specific IgM binding to DBLε domains near the C terminus for three of the four PfEMP1 proteins tested. Our study provides new evidence regarding Fc...

  1. Pengalaman Komunikasi Pelanggan Zalora.co.id (Studi Fenomenologi Pelanggan Zalora.co.id)

    OpenAIRE

    Aji, Widya Andhika; Pradekso, Tandiyo; Ulfa, Nurist Surayya

    2013-01-01

    1PENGALAMAN KOMUNIKASI PELANGGAN ZALORA.CO.ID(Studi Fenomenologi Pelanggan Zalora.co.id)Oleh:Widya Andhika AjiFakultas Ilmu Sosial dan Ilmu PolitikUniversitas Diponegoro SemarangABSTRAKPenelitian ini bertujuan untuk menganalisis pengalaman komunikasi danpemahaman penerimaan konsumen terkait pesan komunikasi pemasaran dalamberbelanja di Zalora.co.id. Dengan menggunakan sampel pada lima informandan metode wawancara, dapat ditarik kesimpulan: Pelanggan Zalora.co.idmemiliki pengalaman komunikasi ...

  2. Cyclin D1, Id1 and EMT in breast cancer

    International Nuclear Information System (INIS)

    Tobin, Nicholas P; Sims, Andrew H; Lundgren, Katja L; Lehn, Sophie; Landberg, Göran

    2011-01-01

    Cyclin D1 is a well-characterised cell cycle regulator with established oncogenic capabilities. Despite these properties, studies report contrasting links to tumour aggressiveness. It has previously been shown that silencing cyclin D1 increases the migratory capacity of MDA-MB-231 breast cancer cells with concomitant increase in 'inhibitor of differentiation 1' (ID1) gene expression. Id1 is known to be associated with more invasive features of cancer and with the epithelial-mesenchymal transition (EMT). Here, we sought to determine if the increase in cell motility following cyclin D1 silencing was mediated by Id1 and enhanced EMT-features. To further substantiate these findings we aimed to delineate the link between CCND1, ID1 and EMT, as well as clinical properties in primary breast cancer. Protein and gene expression of ID1, CCND1 and EMT markers were determined in MDA-MB-231 and ZR75 cells by western blot and qPCR. Cell migration and promoter occupancy were monitored by transwell and ChIP assays, respectively. Gene expression was analysed from publicly available datasets. The increase in cell migration following cyclin D1 silencing in MDA-MB-231 cells was abolished by Id1 siRNA treatment and we observed cyclin D1 occupancy of the Id1 promoter region. Moreover, ID1 and SNAI2 gene expression was increased following cyclin D1 knock-down, an effect reversed with Id1 siRNA treatment. Similar migratory and SNAI2 increases were noted for the ER-positive ZR75-1 cell line, but in an Id1-independent manner. In a meta-analysis of 1107 breast cancer samples, CCND1 low /ID1 high tumours displayed increased expression of EMT markers and were associated with reduced recurrence free survival. Finally, a greater percentage of CCND1 low /ID1 high tumours were found in the EMT-like 'claudin-low' subtype of breast cancer than in other subtypes. These results indicate that increased migration of MDA-MB-231 cells following cyclin D1 silencing can be mediated by Id

  3. Autoestima y motivación laboral en el desempeño de los docentes de las instituciones educativas de la RED 07 – UGEL 04 - Lima – 2015

    OpenAIRE

    Bermudez Ramirez, María Lucy

    2016-01-01

    La investigación titulada Autoestima y motivación laboral en el desempeño de los docentes de las instituciones educativas de la RED 07 – UGEL 04 - Lima – 2015 se desarrolló a fin de alcanzar el objetivo de determinar cómo influye la Autoestima y motivación laboral en el desempeño de los docentes de las instituciones educativas de la RED 07 – UGEL 04 - Lima – 2015. Es un estudio de enfoque cuantitativo, explicativo causal, se trabajó con una muestra censal correspondiente a 1...

  4. Fc-mediated immune precipitation. III. Visualization by electron microscopy

    DEFF Research Database (Denmark)

    Møller, NPH; Christiansen, Gunna

    1983-01-01

    with either rabbit anti-KLH IgG or anti-KLH F(ab')2 fragments. The Fc-Fc interactions were investigated by reacting these surface-adsorbed antibody-rich KLH immune complexes with soluble, antigen-rich ferritin-anti-ferritin complexes using either rabbit anti-ferritin IgG or the corresponding isomolar F(ab')2...... fragments as antibody. Fc-Fc interactions were indicated by the formation of clusters or ring structures of ferritin molecules, which were only seen when using KLH anti-KLH IgG and ferritin-anti-ferritin IgG complexes. When F(ab')2 fragments were used as antibody, no reaction between KLH anti-KLH complexes...

  5. Estudo do crescimento inicial de plântulas de Cereus jamacaru DC em diferentes substratos

    Directory of Open Access Journals (Sweden)

    Wanderlucia Silva Rodrigues

    2014-12-01

    Full Text Available O presente trabalho objetivou avaliar o desenvolvimento de mudas de Cereus jamacaru DC, em substratos a base de fibra de coco e casca de arroz carbonizada. Os tratamentos utilizados foram dispostos em um delineamento inteiramente casualizado constituídos por cinco substratos a base de fibra de coco (FC e casca de arroz carbonizado (CAC, misturados com diferentes proporções volumétricas. Os tratamentos constituíram-se dos substratos 100% FC (T1, 100% CAC (T2, 75%FC+25%CAC (T3, 50%FC+50%CAC (T4, e 25%FC+75%CAC (T5. Cada tratamento foi composto por 14 repetições com 2 plantas por tratamento. Caixas de plástico transparente foram utilizados como recipientes. Aos 125 dias após o transplantio, foram avaliadas as seguintes variáveis das plântulas: comprimento, número, massa fresco e massa seco de raiz; massa fresco e massa seco da parte aérea; comprimento da parte aérea. Nas condições do experimento, conclui-se que o substrato composto somente por fibra de coco apresentou melhores resultados em todas as variáveis analisadas.

  6. El uso de las redes sociales y el engagement de los clubes de la Liga Endesa ACB

    OpenAIRE

    Herrera-Torres, L.; Pérez-Tur, F.; García-Fernández, J.; Fernández-Gavira, J.

    2017-01-01

    Las redes sociales se han convertido en una plataforma idónea para dar a conocer y aumentar la visibilidad de una marca o empresa y también, para interactuar y analizar las acciones de los fans y seguidores de estas. Debido a ello, el presente estudio pretende averiguar las diferentes redes sociales que emplean los clubes de baloncesto de la Liga Endesa ACB, examinar el Engagement de Facebook y Twitter y, analizar si existe una correlación entre la posición en el ranking al final de la liga, ...

  7. The Biocatalytic Desulfurization Project

    Energy Technology Data Exchange (ETDEWEB)

    David Nunn; James Boltz; Philip M. DiGrazia; Larry Nace

    2006-03-03

    The material in this report summarizes the Diversa technical effort in development of a biocatalyst for the biodesulfurization of Petro Star diesel as well as an economic report of standalone and combined desulfurization options, prepared by Pelorus and Anvil, to support and inform the development of a commercially viable process. We will discuss goals of the projected as originally stated and their modification as guided by parallel efforts to evaluate commercialization economics and process parameters. We describe efforts to identify novel genes and hosts for the generation of an optimal biocatalyst, analysis of diesel fuels (untreated, chemically oxidized and hydrotreated) for organosulfur compound composition and directed evolution of enzymes central to the biodesulfurization pathway to optimize properties important for their use in a biocatalyst. Finally we will summarize the challenges and issues that are central to successful development of a viable biodesulfurization process.

  8. Efeitos de um programa de hidroterapia na pressão arterial e freqüência cardíaca de mulheres idosas sedentárias Effects of a hidrotherapy program on blood pressure and heart rate in elderly, sedentary women

    Directory of Open Access Journals (Sweden)

    Juliana Monteiro Candeloro

    2008-01-01

    Full Text Available Este estudo visou analisar as conseqüências cardiocirculatórias (na pressão arterial, PA, e freqüência cardíaca, FC de um programa de hidroterapia cujo objetivo clínico era ganho de força muscular e flexibilidade para mulheres idosas saudáveis e sedentárias. Participaram 16 idosas, de 65 a 70 anos. O programa constou de 32 sessões, com uma hora de duração cada, de exercícios em imersão para ganho de força muscular e flexibilidade, com grau de dificuldade crescente, em sete fases. As quatro primeiras sessões foram usadas para adaptação ao meio aquático e desconsideradas para coleta de dados. As medidas de PA e FC foram coletadas ao final de cada fase, em quatro momentos: repouso fora da água, em repouso 3 minutos após imersão, em imersão ao final dos exercícios, e três minutos após a saída da piscina. Os dados foram analisados estatisticamente com nível de significância a pThis study aimed at analysing cardiocirculatory effects (on blood pressure, BP, and heart rate, HR of a hydrotherapy program of which the purpose was to increase muscle force and flexibility of 16 sedentary, healthy, 65-to-70 year-old women. The program consisted of 32 1-hour sessions of strength and flexibility training exercises, with increasing degree of difficulty in seven phases. The first four sessions were used for adaptation to the aquatic environment and the respective data were not considered. BP and HR were monitored at the end of each phase in four different moments: at rest before diving, at rest 3 minutes after immersion, still immerged at the end of exercises, and at rest, 3 minutes after exiting the pool. Collected measures were statistically analysed, and significance level set at p<0.05. Results show significant mean at-rest systolic BP decrease of 5.6 mmHg, and mean at-rest diastolic BP decrease of 9.7 mmHg, from the 5th (base session to the 32nd (last session; participants' BP classification turned from threshold-normal to

  9. Id-1 and Id-2 genes and products as markers of epithelial cancer

    Science.gov (United States)

    Desprez, Pierre-Yves [El Cerrito, CA; Campisi, Judith [Berkeley, CA

    2008-09-30

    A method for detection and prognosis of breast cancer and other types of cancer. The method comprises detecting expression, if any, for both an Id-1 and an Id-2 genes, or the ratio thereof, of gene products in samples of breast tissue obtained from a patient. When expressed, Id-1 gene is a prognostic indicator that breast cancer cells are invasive and metastatic, whereas Id-2 gene is a prognostic indicator that breast cancer cells are localized and noninvasive in the breast tissue.

  10. Inhibición dual de la neprilisina y del receptor de la angiotensina (ARNI: una alternativa en los pacientes con falla cardiaca

    Directory of Open Access Journals (Sweden)

    Beatriz Wills

    2016-03-01

    Full Text Available La falla cardiaca (FC es la causa más común de admisión hospitalaria en adultos en el mundo. Además, de su importante prevalencia la FC tiene un alta tasa de mortalidad, se estima que aproximadamente el 50% de los pacientes con FC mueren a los 5 años posterior al egreso hospitalario. Esto ha motivado el desarrollo de nuevas terapias seguras y efectivas para el manejo de esta entidad. El LCZ696 es un inhibidor dual de la neprilisina y del receptor de angiotensina II que demostró en estudios de fase III disminuir el desenlace primario de muerte cardiovascular y hospitalización por empeoramiento de la FC y muerte global. Probablemente el LCZ696 se convertirá en la piedra angular del manejo en pacientes con FC con fracción de eyección deprimida.

  11. Comportamento de variáveis fisiológicas em atletas de nado sincronizado durante uma sessão de treinamento na fase de preparação para as Olimpíadas de Atenas 2004 Comportamiento de variábles fisiológicas en atletas de nado sincronizado durante una sesion de entrenamiento en la fase de preparación para las Olimpíadas de Atenas 2004 Behavior of physiological variables in synchronized swimming athletes during a training session preparing for the Athens 2004 Olympic Games

    Directory of Open Access Journals (Sweden)

    Marina Guimarães Antunes Pazikas

    2005-12-01

    Full Text Available O objetivo do presente estudo foi avaliar o comportamento de variáveis fisiológicas durante uma sessão de treino de nado sincronizado realizada na fase de preparação para as Olimpíadas de Atenas 2004. MATERIAIS E MÉTODOS: A amostra utilizada foi constituída pelo dueto (24 ± 0 anos representante do Brasil em Atenas 2004. A coleta de dados foi realizada durante uma sessão de treinamento com duração de 198 minutos. O treino se iniciou com a parte física, seguida da parte técnica. Para a determinação da glicemia e da concentração de beta-hidroxibutirato foi utilizado o monitor Optium® com suas respectivas tiras. As concentrações de cortisol e das enzimas lactato desidrogenase (LDH e creatina quinase (CK foram determinadas por radioimunoensaio (DPC© e kits comerciais (CELM®, respectivamente. O acompanhamento da freqüência cardíaca (FC foi realizado com o freqüêncimetro Advantage Polar®. RESULTADOS: Foi observada redução (~2% do peso corporal. A glicemia também apresentou queda (~30% em comparação ao valor obtido no início do treino. Em contrapartida, foi observada elevação na concentração de cortisol (salivar 22% e plasmática 29% e de beta-hidroxibutirato (~340%. Não foi observada alteração significativa na concentração plasmática de CK e de LDH. O acompanhamento da FC demonstrou que dos 198 minutos que constituíram a sessão de treino, 36,5 ± 0,7 minutos foram realizados em intensidade leve; 103,5 ± 0,7 minutos em intensidade moderada, 54,0 ± 2,1 minutos em intensidade alta e 4,0 ± 0,0 minutos em intensidade muito alta. CONCLUSÕES: A perda de peso indica que a reposição hídrica não foi adequada. A redução na glicemia e o aumento na concentração de corpos cetônicos e de cortisol reforçam a importância da suplementação de carboidrato durante o treino de longa duração. O comportamento da FC demonstra que a sessão de treinamento foi realizada em uma intensidade moderada, porém com

  12. Human IgG4 binds to IgG4 and conformationally altered IgG1 via Fc-Fc interactions

    NARCIS (Netherlands)

    Rispens, Theo; Ooievaar-de Heer, Pleuni; Vermeulen, Ellen; Schuurman, Janine; van der Neut Kolfschoten, Marijn; Aalberse, Rob C.

    2009-01-01

    The Fc fragment of IgG4 can interact with the Fc fragment of another IgG molecule. This interaction is a confounding factor when measuring IgG4 rheumatoid factor levels. Recently, we demonstrated that half-molecules of IgG4 can exchange to form a bispecific Ab. We expected these two phenomena to be

  13. Modulating Cytotoxic Effector Functions by Fc Engineering to Improve Cancer Therapy.

    Science.gov (United States)

    Kellner, Christian; Otte, Anna; Cappuzzello, Elisa; Klausz, Katja; Peipp, Matthias

    2017-09-01

    In the last two decades, monoclonal antibodies have revolutionized the therapy of cancer patients. Although antibody therapy has continuously been improved, still a significant number of patients do not benefit from antibody therapy. Therefore, rational optimization of the antibody molecule by Fc engineering represents a major area of translational research to further improve this potent therapeutic option. Monoclonal antibodies are able to trigger a variety of effector mechanisms. Especially Fc-mediated effector functions such as antibody-dependent cell-mediated cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), and complement- dependent cytotoxicity (CDC) are considered important in antibody therapy of cancer. Novel mechanistic insights into the action of monoclonal antibodies allowed the development of various Fc engineering approaches to modulate antibodies' effector functions. Strategies in modifying the Fc glycosylation profile (Fc glyco-engineering) or approaches in engineering the protein backbone (Fc protein engineering) have been intensively evaluated. In the current review, Fc engineering strategies resulting in improved ADCC, ADCP and CDC activity are summarized and discussed.

  14. Le manga et son histoire vus de France : entre idées reçues et approximations

    Directory of Open Access Journals (Sweden)

    Xavier Guilbert

    2012-02-01

    Full Text Available Le succès du manga en France au cours de la décennie passée a été accompagné d'un développement du discours tant critique qu'historique s'y rattachant. Cet article se propose d'examiner le traitement accordé à l'histoire de la bande dessinée japonaise dans les ouvrages de référence disponibles en français, ainsi que les idées reçues qui l'entourent. On s'y intéressera en particulier à la question de l'origine et du traitement de la figure centrale de Tezuka Osamu. On évoquera ensuite les déformations liées au prisme de l'accessibilité des œuvres à un lectorat francophone, qu'il s'agisse de l'importance accordée à un auteur comme Taniguchi Jirô, ou à la faible attention accordée à une production alternative encore peu traduite. On examinera également la vision de l'industrie du manga au Japon, et comment celle-ci s'établit principalement autour du cas emblématique de la revue Shônen Jump. Enfin, on observera la manière dont les éditeurs français retranscrivent cette vision dans leur approche et la constitution de leurs collections.The success of manga in France during the past decade has also seen the development of a critical and historical discourse on the Japanese production. This text proposes to consider the treatment of the history of manga in reference books available in French, with a focus on its preconceived ideas. We will consider in particular the question of the origin, and of the central figure of Tezuka Osamu. We will then analyze the distorsions linked to the availability of certain works in French, be it the importance of an author such as Taniguchi Jirou, or the limited attention given to the alternative production that still remains rarely translated. We will also consider the vision of the manga industry in Japan, and how this vision is mostly built on the emblematic case of the Shônen Jump weekly magazine. Finally, we will observe how French publishers translate this vision in their

  15. Atividade antimicrobiana, antioxidante e teor de compostos fenólicos em casca e amêndoa de frutos de manga

    Directory of Open Access Journals (Sweden)

    Kettelin Aparecida Arbos

    2013-04-01

    Full Text Available O processamento industrial de frutos de manga gera elevada quantidade de resíduos agroindustriais, representados pelas cascas e sementes (amêndoa, os quais, sem aplicação viável, acabam sendo descartados diretamente no meio ambiente. Esses resíduos são ricos em compostos bioativos, amplamente reconhecidos pelas suas propriedades promotoras da saúde e em aplicações tecnológicas. Os objetivos foram avaliar as atividades antimicrobiana e antioxidante e o teor de compostos fenólicos de dois extratos: um obtido da casca (FC e outro da amêndoa (FA de manga variedade 'Tommy Atkins'. O teor de compostos fenólicos totais variou de 3.123 a 6.644 mg de catequina/100 g. Os extratos FC e FA demonstraram relevante atividade antimicrobiana frente às cepas das bactérias Escherichia coli, Salmonella sp., Pseudomonas aeruginosa . Staphylococcus aureus, determinadas pelo método de difusão em disco. A ação antioxidante de FC e FA aumentou com o aumento das concentrações testadas, atingindo o valor máximo de 88% (FC. Em todas as concentrações testadas os extratos FC apresentaram ação antioxidante significativamente superior às respectivas concentrações dos extratos FA. Esses resultados sugerem potencial aplicação dos resíduos de manga como fonte de compostos fenólicos, substâncias antimicrobianas e antioxidantes, podendo ser explorados pelas indústrias de alimentos.

  16. La comunicación digital del FC Barcelona y del Real Madrid CF y su percepción por los periodistas deportivos / Digital communication of FC Barcelona and Real Madrid CF and its perception by sports journalists

    Directory of Open Access Journals (Sweden)

    Fernando Olabe Sánchez

    2012-12-01

    Full Text Available ResumenEl FC Barcelona y el Real Madrid CF han cambiado su modelo de gestión comunicativa, especialmente en su relación con los medios de comunicación. Favorecidos por la implantación de las TIC, los departamentos de Comunicación de estas entidades se constituyen en gatekeeper al controlar y emitir, a través de sus propios medios de comunicación, como las televisiones y radios propias y los soportes online, las informaciones que ellos mismos generan. De este modo, controlan los mensajes y los emiten directamente a sus públicos objetivos sin la intermediación de los medios convencionales, condicionando las rutinas productivas de los periodistas deportivos.El objetivo de este trabajo es mostrar la percepción que estos profesionales tienen sobre las diferentes herramientas y soportes online que los departamentos de Comunicación de estos clubes emplean en su actividad diaria con los medios.AbstractThe FC Barcelona and Real Madrid CF have changed their communicative management model, especially in its relationship with the media. Favored by the introduction of ICT, Communication departments of these entities constitute gatekeeper to control and issue, through their own media, such as television and radio stations and media own online, the information that they generate. Thus, controlling broadcast messages and their target audiences directly without the intermediation of the mainstream media, conditioning routines productive sports journalists.The aim of this paper is to show the perception that these professionals have about the different tools and online media Communication departments to use these clubs in their daily activities with the media.

  17. 40 CFR 97.86 - Withdrawal from NOX Budget Trading Program.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Withdrawal from NOX Budget Trading... PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS Individual Unit Opt-ins. § 97.86 Withdrawal from NOX Budget Trading Program. (a) Requesting withdrawal. To...

  18. Características de las personas afectadas de fibrilación auricular en una consulta de cardiología

    Directory of Open Access Journals (Sweden)

    Patricia López-Mases

    Full Text Available La Fibrilación auricular (FA presenta una elevada prevalencia en los ancianos. Se plantea como objetivo describir las características de la población afectada y valorar las relaciones existentes entre los diferentes aspectos medibles. Metodología: Estudio descriptivo e inferencial con muestreo por conveniencia, seleccionando todos los pacientes con episodios de FA asociados a frecuencias cardíacas (FC superiores a 80 ppm o que hayan revertido a ritmo sinusal, con el que se obtiene una muestra de 65 personas. Se han recopilado datos sociodemográficos, tipo de FA, variaciones en FC, visitas a urgencias y complicaciones. Los datos han sido analizados mediante el programa SPSS v.17.0. Resultados: La media de edad fue de 65 años. La FA paroxística se encuentra asociada a FC iniciales superiores a las del grupo de FA persistente, el cual se relaciona con edades más avanzadas. El grupo que acude a urgencias presenta FC iniciales superiores. Existen diferencias significativas, asociando directamente las consultas al servicio de urgencias con episodios de FA con FC elevadas que obliga a la derivación. A edades avanzadas, mayor asociación en el individuo de los factores de riesgo con los que esta se relaciona. Conclusiones: La FA es una de las arritmias más prevalentes, con un alto coste sanitario y con un empeoramiento de la calidad de vida, por lo que las actividades encaminadas a la detección precoz y tratamiento adecuado son fundamentales para su mejora.

  19. Farinha de resíduos da filetagem de tilápia em rações para alevinos de piauçu (Leporinus macrocephalus Effects of feeding tilapia by-products flour for piauçu (Leporinus macrocephalus fingerlings

    Directory of Open Access Journals (Sweden)

    Wilson Rogério Boscolo

    2005-12-01

    Full Text Available Este experimento foi realizado com o objetivo de avaliar o efeito da inclusão de farinha de resíduos da industrialização de tilápia (FT na alimentação de alevinos de piauçu (Leporinus macrocephalus. Cento e vinte e cinco alevinos com peso e comprimento iniciais de 0,19 ± 0,004 g e 2,37 ± 0,2 cm foram distribuídos em delineamento inteiramente casualizado, com cinco tratamentos e cinco repetições. As rações testadas continham 0; 5; 10 e 15% de FT e 0% de FT suplementada com metionina. O arraçoamento foi de 10% da biomassa quatro vezes ao dia (8, 11, 14 e 17 h. As médias dos parâmetros físico-químicos da água foram 7,89 ± 0,05, 89,93 ± 0,42, 7,15 ± 0,10 e 27,10 ± 0,95 para pH, condutividade elétrica (µS.cm-1, oxigênio dissolvido (mg.L-1 e temperatura (ºC, respectivamente. Ao final do período experimental, foram avaliadas as médias de sobrevivência (SO, peso final (PF, comprimento final (CF, ganho de peso (GP, fator de condição (FC e conversão alimentar aparente (CA. Foram observadas diferenças quanto ao CF, CA e FC entre tratamentos, obtendo-se melhores resultados naqueles com inclusão de FT e suplementação de metionina. O CF apresentou aumento linear com platô em 8,56% de FT e a CA apresentou redução linear com platô de 8,19% de inclusão de FT. Os maiores teores de proteína bruta (PB na carcaça foram obtidos nos tratamentos com mais de 5% de FT e 0% de FT suplementado com metionina. Pode-se incluir até 15% de FT em rações para alevinos de piauçu, melhorando seu desempenho e deposição de PB na carcaça, o que torna a FT uma fonte protéica alternativa.This trial was carried out to evaluate the effects of feeding Tilapia fillet by-products meal (TF for piauçu (Leporinus macrocephalus fingerlings. One hundred and twenty-five fingerlings averaging weight of 0.19 ± 0.004 g and length of 2.37 ± 0.28 cm were assigned to a completely randomized design with five treatments of five replicates. The diets

  20. Construction of a bimolecular fluorescence complementation (BiFC ...

    African Journals Online (AJOL)

    Protein–protein interactions are essential for signal transduction in cells. Bimolecular fluorescence complementation (BiFC) is a novel technology that utilises green fluorescent proteins to visualize protein–protein interactions and subcellular protein localisation. BiFC based on pSATN vectors are a good system for ...

  1. Coordinate expression of activating Fc gamma receptors I and III and inhibiting Fc gamma receptor type II in the determination of joint inflammation and cartilage destruction during immune complex-mediated arthritis.

    NARCIS (Netherlands)

    Nabbe, K.C.A.M.; Blom, A.B.; Holthuysen, A.E.M.; Boross, P.; Roth, J.; Verbeek, S.; Lent, P.L.E.M. van; Berg, W.B. van den

    2003-01-01

    OBJECTIVE: To study the role of the activating Fc gamma receptor types I and III (Fc gamma RI and Fc gamma RIII, respectively) and the inhibiting Fc gamma receptor II (Fc gamma RII) in inflammation and in various aspects of cartilage destruction during arthritis that is solely induced by immune

  2. Imprensa política e Separatismo no Sul de Minas Gerais, século XIX

    Directory of Open Access Journals (Sweden)

    Pérola Maria Goldfeder e Castro

    2010-07-01

    Full Text Available RESUMO:A cidade de Campanha afirmou-se durante o século XIX como importante localidade propagadora de idéias separatistas no Sul de Minas Gerais. Nela surgiram vários jornais e projetos parlamentares que tinham como aspiração comum a provincialização daquela região. Num primeiro momento, este texto identifica as transformações históricas no estatuto social e político da imprensa moderna. Em seguida, analisam-se os fatores de surgimento das idéias separatistas no Sul de Minas Gerais durante o século XIX, materializadas na imprensa local. Por fim, algumas considerações sobre o Movimento Separatista de 1892 e o posicionamento de setores da imprensa local quanto ao assunto.PALAVRAS-CHAVE: Imprensa; Separatismo; Sul de MinasABSTRACT: City Campaign was stated during the nineteenth century as important propagator town of separatist ideas in southern Minas Gerais. it there were several newspapers and parliamentary projects that had as common aspiration to provincializing that region. In a first Currently, this paper identifies the historical changes in status social and political development of modern press. Then we analyze the factors emergence of separatist ideas in the South of Minas Gerais during the nineteenth century, materialized in the local press. Finally, some considerations on the Separatist Movement of 1892 and the positioning sectors of the local media for that matter. KEYWORDS: Press, Separatism, southern Minas GeraisRecebido: 15/06/2010       Aceito: 14/07/2010

  3. Identification of Fc Gamma Receptor Glycoforms That Produce Differential Binding Kinetics for Rituximab.

    Science.gov (United States)

    Hayes, Jerrard M; Frostell, Asa; Karlsson, Robert; Müller, Steffen; Martín, Silvia Míllan; Pauers, Martin; Reuss, Franziska; Cosgrave, Eoin F; Anneren, Cecilia; Davey, Gavin P; Rudd, Pauline M

    2017-10-01

    Fc gamma receptors (FcγR) bind the Fc region of antibodies and therefore play a prominent role in antibody-dependent cell-based immune responses such as ADCC, CDC and ADCP. The immune effector cell activity is directly linked to a productive molecular engagement of FcγRs where both the protein and glycan moiety of antibody and receptor can affect the interaction and in the present study we focus on the role of the FcγR glycans in this interaction. We provide a complete description of the glycan composition of Chinese hamster ovary (CHO) expressed human Fcγ receptors RI (CD64), RIIa Arg131/His131 (CD32a), RIIb (CD32b) and RIIIa Phe158/Val158 (CD16a) and analyze the role of the glycans in the binding mechanism with IgG. The interactions of the monoclonal antibody rituximab with each FcγR were characterized and we discuss the CHO-FcγRIIIa Phe158/Val158 and CHO-FcγRI interactions and compare them to the equivalent interactions with human (HEK293) and murine (NS0) produced receptors. Our results reveal clear differences in the binding profiles of rituximab, which we attribute in each case to the differences in host cell-dependent FcγR glycosylation. The glycan profiles of CHO expressed FcγRI and FcγRIIIa Phe158/Val158 were compared with the glycan profiles of the receptors expressed in NS0 and HEK293 cells and we show that the glycan type and abundance differs significantly between the receptors and that these glycan differences lead to the observed differences in the respective FcγR binding patterns with rituximab. Oligomannose structures are prevalent on FcγRI from each source and likely contribute to the high affinity rituximab interaction through a stabilization effect. On FcγRI and FcγRIIIa large and sialylated glycans have a negative impact on rituximab binding, likely through destabilization of the interaction. In conclusion, the data show that the IgG1-FcγR binding kinetics differ depending on the glycosylation of the FcγR and further support a

  4. Identification of antibody glycosylation structures that predict monoclonal antibody Fc-effector function.

    Science.gov (United States)

    Chung, Amy W; Crispin, Max; Pritchard, Laura; Robinson, Hannah; Gorny, Miroslaw K; Yu, Xiaojie; Bailey-Kellogg, Chris; Ackerman, Margaret E; Scanlan, Chris; Zolla-Pazner, Susan; Alter, Galit

    2014-11-13

    To determine monoclonal antibody (mAb) features that predict fragment crystalizable (Fc)-mediated effector functions against HIV. Monoclonal antibodies, derived from Chinese hamster ovary cells or Epstein-Barr virus-immortalized mouse heteromyelomas, with specificity to key regions of the HIV envelope including gp120-V2, gp120-V3 loop, gp120-CD4(+) binding site, and gp41-specific antibodies, were functionally profiled to determine the relative contribution of the variable and constant domain features of the antibodies in driving robust Fc-effector functions. Each mAb was assayed for antibody-binding affinity to gp140(SR162), antibody-dependent cellular cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP) and for the ability to bind to FcγRIIa, FcγRIIb and FcγRIIIa receptors. Antibody glycan profiles were determined by HPLC. Neither the specificity nor the affinity of the mAbs determined the potency of Fc-effector function. FcγRIIIa binding strongly predicted ADCC and decreased galactose content inversely correlated with ADCP, whereas N-glycolylneuraminic acid-containing structures exhibited enhanced ADCP. Additionally, the bi-antenary glycan arm onto which galactose was added predicted enhanced binding to FcγRIIIa and ADCC activity, independent of the specificity of the mAb. Our studies point to the specific Fc-glycan structures that can selectively promote Fc-effector functions independently of the antibody specificity. Furthermore, we demonstrated antibody glycan structures associated with enhanced ADCP activity, an emerging Fc-effector function that may aid in the control and clearance of HIV infection.

  5. Sweat conductivity and coulometric quantitative test in neonatal cystic fibrosis screening

    Directory of Open Access Journals (Sweden)

    Mouseline Torquato Domingos

    2015-11-01

    Full Text Available Objective: To compare the results obtained with the sweat test using the conductivity method and coulometric measurement of sweat chloride in newborns (NBs with suspected cystic fibrosis (CF in the neonatal screening program. Methods: The sweat test was performed simultaneously by both methods in children with and without CF. The cutoff values to confirm CF were >50 mmol/L in the conductivity and >60 mmol/L in the coulometric test. Results: There were 444 infants without CF (185 males, 234 females, and 24 unreported submitted to the sweat test through conductivity and coulometric measurement simultaneously, obtaining median results of 32 mmol/L and 12 mmol/L, respectively. For 90 infants with CF, the median values of conductivity and coulometric measurement were 108 mmol/L and 97 mmol/L, respectively. The false positive rate for conductivity was 16.7%, and was higher than 50 mmol/L in all patients with CF, which gives this method a sensitivity of 100% (95% CI: 93.8–97.8, specificity of 96.2% (95% CI: 93.8–97.8, positive predictive value of 83.3% (95% CI: 74.4–91.1, negative predictive value of 100% (95% CI: 90.5–109.4, and 9.8% accuracy. The correlation between the methods was r = 0.97 (p > 0.001. The best suggested cutoff value was 69.0 mmol/L, with a kappa coefficient = 0.89. Conclusion: The conductivity test showed excellent correlation with the quantitative coulometric test, high sensitivity and specificity, and can be used in the diagnosis of CF in children detected through newborn screening. Resumo: Objetivo: Comparar os resultados obtidos no teste do suor pelo método da condutividade e a dosagem coulométrica de cloreto no suor em recém nascidos (RN suspeitos da triagem neonatal para fibrose cística (FC. Métodos: O teste do suor foi realizado simultaneamente pelos dois métodos em crianças com e sem FC. Os valores de corte para confirmar FC foram na condutividade > 50 mmol/L e no teste coulométrico > 60

  6. Selection and Application of Sulfide Oxidizing Microorganisms Able to Withstand Thiols in Gas Biodesulfurization Systems.

    Science.gov (United States)

    Roman, Pawel; Klok, Johannes B M; Sousa, João A B; Broman, Elias; Dopson, Mark; Van Zessen, Erik; Bijmans, Martijn F M; Sorokin, Dimitry Y; Janssen, Albert J H

    2016-12-06

    After the first commercial applications of a new biological process for the removal of hydrogen sulfide (H 2 S) from low pressure biogas, the need arose to broaden the operating window to also enable the removal of organosulfur compounds from high pressure sour gases. In this study we have selected microorganisms from a full-scale biodesulfurization system that are capable of withstanding the presence of thiols. This full-scale unit has been in stable operation for more than 10 years. We investigated the microbial community by using high-throughput sequencing of 16S rRNA gene amplicons which showed that methanethiol gave a competitive advantage to bacteria belonging to the genera Thioalkalibacter (Halothiobacillaceae family) and Alkalilimnicola (Ectothiorhosdospiraceae family). The sulfide-oxidizing potential of the acclimatized population was investigated under elevated thiol loading rates (4.5-9.1 mM d -1 ), consisting of a mix of methanethiol, ethanethiol, and propanethiol. With this biomass, it was possible to achieve a stable bioreactor operation at which 80% of the supplied H 2 S (61 mM d -1 ) was biologically oxidized to elemental sulfur. The remainder was chemically produced thiosulfate. Moreover, we found that a conventionally applied method for controlling the oxygen supply to the bioreactor, that is, by maintaining a redox potential set-point value, appeared to be ineffective in the presence of thiols.

  7. PRODUCCIÓN DE BIOMASA Y EXOPOLISACÁRIDOS DE Grifóla frondosa BAJO CULTIVO SUMERGIDO UTILIZANDO FUENTES DE CARBONO NO CONVENCIONALES

    Directory of Open Access Journals (Sweden)

    Paula Zapata

    2007-06-01

    Full Text Available Grifóla frondosa es un hongo Basidiomycete comestible y medicinal que produce polisacáridos tipo glucanos (β-1,6 y β-1,3 con actividad antitumoral e inmunomoduladora. Para el presente trabajo, el objetivo fue evaluar la incidencia de diferentes fuentes de carbono (FC en la producción de biomasa y exopolisacári-dos (EPS, bajo condiciones de cultivo sumergido, utilizando un diseño estadístico factorial con dos factores: fuente de carbono (FC(1-7 y medio (MB y MS. La máxima producción de biomasa micelial (21,10 ± 0,82 g/l y la máxima producción de EPS (6,53 ± 0,14 g/l se logró utilizando el medio MB suplementado con FC4. Además de lo anterior, se logró desarrollar un medio de cultivo que cumple con el objetivo de disminuir costos, de Col $18.455 a $656 por litro de medio, produciendo (14,14 ± 0,82 g/l de biomasa y (5,16 ± 0,14 g/l de EPS, utilizando el medio MS suplementando con FC4. Estos resultados abren nuevas alternativas y posibilidades en nuestro país para el desarrollo de productos a partir de esta especie con costos que estén al alcance de la población.Grifóla frondosa is a Basidiomycete fungus edible and medicinal, it produces polysaccharides such a glucans (β-1,6 and β-1,3 with anti-tumor and inmuno-stimulating activity. For this work, the aim was evaluate the incidence of different carbon sources (FC in biomass and exo-polymer (EPS production, under submerged culture conditions, by using a factorial statistical design with two factors: carbon source (FC(1-7 and medium (MB and MS. The maximal yield of mycelial biomass (21,10 ± 0,82 g/l and the maximal yield in EPS (6,53 ± 0,14 g/l was achieved by using the MB medium supplemented with FC4. Besides, it was possible to develop a medium that fulfills the objective of reducing costs from $18.455 to $656 Colombian pesos for each liter of medium used, which produces (14,14 ± 0,82 g/l of biomass and (5,16 ± 0,14 g/l of EPS, using the MS medium supplemented with FC4

  8. 40 CFR 97.288 - CAIR SO2 allowance allocations to CAIR SO2 opt-in units.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false CAIR SO2 allowance allocations to CAIR SO2 opt-in units. 97.288 Section 97.288 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS...

  9. ID4 promotes AR expression and blocks tumorigenicity of PC3 prostate cancer cells

    International Nuclear Information System (INIS)

    Komaragiri, Shravan Kumar; Bostanthirige, Dhanushka H.; Morton, Derrick J.; Patel, Divya; Joshi, Jugal; Upadhyay, Sunil; Chaudhary, Jaideep

    2016-01-01

    Deregulation of tumor suppressor genes is associated with tumorigenesis and the development of cancer. In prostate cancer, ID4 is epigenetically silenced and acts as a tumor suppressor. In normal prostate epithelial cells, ID4 collaborates with androgen receptor (AR) and p53 to exert its tumor suppressor activity. Previous studies have shown that ID4 promotes tumor suppressive function of AR whereas loss of ID4 results in tumor promoter activity of AR. Previous study from our lab showed that ectopic ID4 expression in DU145 attenuates proliferation and promotes AR expression suggesting that ID4 dependent AR activity is tumor suppressive. In this study, we examined the effect of ectopic expression of ID4 on highly malignant prostate cancer cell, PC3. Here we show that stable overexpression of ID4 in PC3 cells leads to increased apoptosis and decreased cell proliferation and migration. In addition, in vivo studies showed a decrease in tumor size and volume of ID4 overexpressing PC3 cells, in nude mice. At the molecular level, these changes were associated with increased androgen receptor (AR), p21, and AR dependent FKBP51 expression. At the mechanistic level, ID4 may regulate the expression or function of AR through specific but yet unknown AR co-regulators that may determine the final outcome of AR function. - Highlights: • ID4 expression induces AR expression in PC3 cells, which generally lack AR. • ID4 expression increased apoptosis and decreased cell proliferation and invasion. • Overexpression of ID4 reduces tumor growth of subcutaneous xenografts in vivo. • ID4 induces p21 and FKBP51 expression- co-factors of AR tumor suppressor activity.

  10. ID4 promotes AR expression and blocks tumorigenicity of PC3 prostate cancer cells

    Energy Technology Data Exchange (ETDEWEB)

    Komaragiri, Shravan Kumar; Bostanthirige, Dhanushka H.; Morton, Derrick J.; Patel, Divya; Joshi, Jugal; Upadhyay, Sunil; Chaudhary, Jaideep, E-mail: jchaudhary@cau.edu

    2016-09-09

    Deregulation of tumor suppressor genes is associated with tumorigenesis and the development of cancer. In prostate cancer, ID4 is epigenetically silenced and acts as a tumor suppressor. In normal prostate epithelial cells, ID4 collaborates with androgen receptor (AR) and p53 to exert its tumor suppressor activity. Previous studies have shown that ID4 promotes tumor suppressive function of AR whereas loss of ID4 results in tumor promoter activity of AR. Previous study from our lab showed that ectopic ID4 expression in DU145 attenuates proliferation and promotes AR expression suggesting that ID4 dependent AR activity is tumor suppressive. In this study, we examined the effect of ectopic expression of ID4 on highly malignant prostate cancer cell, PC3. Here we show that stable overexpression of ID4 in PC3 cells leads to increased apoptosis and decreased cell proliferation and migration. In addition, in vivo studies showed a decrease in tumor size and volume of ID4 overexpressing PC3 cells, in nude mice. At the molecular level, these changes were associated with increased androgen receptor (AR), p21, and AR dependent FKBP51 expression. At the mechanistic level, ID4 may regulate the expression or function of AR through specific but yet unknown AR co-regulators that may determine the final outcome of AR function. - Highlights: • ID4 expression induces AR expression in PC3 cells, which generally lack AR. • ID4 expression increased apoptosis and decreased cell proliferation and invasion. • Overexpression of ID4 reduces tumor growth of subcutaneous xenografts in vivo. • ID4 induces p21 and FKBP51 expression- co-factors of AR tumor suppressor activity.

  11. DEFINICIÓN DE PIT FINAL CAPACITADO BAJO INCERTIDUMBRE

    OpenAIRE

    PEIRANO OPAZO, FERNANDO ANDRÉS

    2011-01-01

    El objetivo principal de este trabajo de tesis es desarrollar una metodología y una herramienta que permitan definir un pit final incorporando las restricciones de capacidad y las condiciones de incertidumbre asociadas al recurso geológico. El resultado metodológico consiste en un algoritmo de cálculo que incorpora heurísticas de definición de pit final como es la enunciada por Lerchs y Grossman (1964), en conjunto con heurísticas de secuenciamiento de bloques como son enunciadas por Gersh...

  12. Qualidade da carne de marreco pequim branco (Anas Platyrhynchos platyrhynchos L. 1758 comparado a frango de corte Meat quality in white peking mallard (Anas Platyrhynchos platyrhynchos L. 1758 compared to broiler chicken

    Directory of Open Access Journals (Sweden)

    Peter Bitencourt Faria

    2008-02-01

    Full Text Available O total de 20 carcaças resfriadas (10 Marrecos Pequim Branco e 10 de frangos de corte foi submetido às análises de composição centesimal, colesterol, cor (sistema CIE L*a*b*, perda de peso por cozimento (PPC e força de cisalhamento (FC. A carne de marreco apresenta (PTwenty refrigerated carcasses (10 Peking mallard and 10 broiler chicken were submitted to analyses of chemical composition, cholesterol, colour (CIE L*a*b* system, weight loss by cooking (PPC and shear force (FC. Mallard meat had lower (P<0.05 humidity in both leg and breast (71.77 and 74.53%, respectively when compared with chicken meat (74.73 and 76.07%, respectively. When different cuts were compared, the breast had a higher (P<0.05 humidity and protein content than the leg in both species. Mallard leg and breast had lower (P<0.05 lightness (37.59 and 35.75, respectively and higher red content (18.48 and 20.67, respectively, than the lightness (40.98 and 45.18, respectively and red content (10.02 and 5.52, respectively observed in chicken. The FC was higher (P<0.05 in mallard breast (4.90 kgf than in chicken breast (2.63 kgf. Meat from White Peking mallard is darker and with a stronger red pigment than meat from broiler chicken. Even though it is less tender than meat from broiler chicken, mallard meat still has an acceptable tenderness.

  13. As idéias psicopedagógicas e a espiritualidade no karate-do segundo a obra de Gichin Funakoshi

    Directory of Open Access Journals (Sweden)

    Barreira Cristiano Roque Antunes

    2003-01-01

    Full Text Available O karate é uma forma de luta com origens remotas, pouco conhecidas e marcado desenvolvimento na ilha de Okinawa do arquipélago japonês. Outrora praticado às escondidas, no século XX Gichin Funakoshi tornou-o público e o difundiu. Partiu de Funakoshi a denominação karate-do, "o caminho das mãos vazias", que dá um caráter doutrinário à arte que deveria servir, mais do que como mera forma de luta, ao desenvolvimento da personalidade. Procura-se fazer um resgate teórico das idéias psicopedagógicas e da espiritualidade próprias do karate sob a luz dos paradigmas culturais de maior influência no pensamento de Funakoshi. Observa-se claramente a influência e complementaridade entre confucionismo e zen-budismo além da herança prática do bushidô que permitem compreender o pensamento de Funakoshi acerca da espiritualidade e transmissão do conhecimento.

  14. Prophylactic anti-D preparations display variable decreases in Fc-fucosylation of anti-D.

    Science.gov (United States)

    Kapur, Rick; Della Valle, Luciana; Verhagen, Onno J H M; Hipgrave Ederveen, Agnes; Ligthart, Peter; de Haas, Masja; Kumpel, Belinda; Wuhrer, Manfred; van der Schoot, C Ellen; Vidarsson, Gestur

    2015-03-01

    RhIG is obtained from hyperimmunized healthy anti-D donors (HIDs) boosted with D+ red blood cells (RBCs). One hypothesis for its mechanism of action is fast clearance of opsonized D+ RBCs through Fcγ receptor (FcγR)III. Levels of immunoglobulin (Ig)G Fc-fucosylation influence interactions with FcγRIII, with less Fc-fucosylation strengthening the interaction. Anti-D IgG1 Fc-glycosylation patterns in 93 plasma samples from 28 male and 28 female Dutch HIDs and RhIG were analyzed with mass spectrometry. The Fc-glycosylation profiles of HIDs were evaluated with regard to their immunization history. HID sera demonstrated clearly lowered anti-D Fc-fucosylation compared to normal IgG fucosylation (93%); this was more pronounced for female than for male HIDs (47% vs. 65%, p = 0.001). RhIG preparations from seven manufacturers varied greatly in the level of Fc-fucosylation (56%-91%). The level of fucosylation slightly increased upon repeated immunization, although it remained fairly constant over time. The RhIG from the different manufacturers all demonstrated increased Fc-galactosylation (64%-82%) compared to total IgG (38%-51%). RhIG preparations vary in Fc-fucosylation and all demonstrate increased galactosylation. Despite not knowing the exact working mechanism, immunoprophylaxis could perhaps be optimized by selection of donors whose anti-D have low amounts of Fc-fucose, to increase the clearance activity of anti-D preparations, as well as high amounts of galactosylation, for anti-inflammatory effects. Implementing a biologic assay in the standardization of RhIG preparations might be considered. © 2014 AABB.

  15. Desenvolvimento e avaliação de um teste ELISA indireto para o diagnóstico sorológico do mormo em equídeos

    Directory of Open Access Journals (Sweden)

    José Andreey A. Teles

    2012-09-01

    Full Text Available O mormo é uma enfermidade infecto-contagiosa de caráter agudo ou crônico que acomete principalmente os equídeos, causando enormes prejuízos na cadeia produtiva do cavalo. Para controlar a enfermidade o Ministério da Agricultura, Pecuária e Abastecimento (MAPA instituiu medidas sanitárias obrigatórias em todo território nacional que incluem o diagnóstico oficial pela fixação do complemento (FC, maleinização e sacrifício dos animais positivos. Os kits atuais utilizados no diagnóstico da doença são importados, dificultando e encarecendo sua aplicação na rotina. Objetivou-se com este estudo padronizar um teste de ELISA indireto utilizando o extrato protéico de Burkholderia mallei isolada a partir de equídeo portador no estado de Pernambuco. As amostras foram cultivadas em ágar sangue 10%, incubada por 48h a 37°C; posteriormente caracterizou-se fenotípica e genotipicamente uma das colônias isoladas, e em seguida a cultivou em BHI para enriquecimento; logo após, esta foi repicada para o meio Dor-set Henley o qual foi incubado a 37ºC sob 60rpm por oito semanas. Para padronização do teste utilizou-se o Conjugado Proteína G Peroxidase Sigma na diluição de 1:90.000, com soros diluídos em 1:100 e o antígeno em 1:400. Utilizou-se 60 soros como controle negativo testados frente à FC para determinação do ponto de corte o qual ficou em 0,042nm. Feitas as padronizações, foram testadas 300 amostras, onde 99% (297 foram concordantes com os resultados obtidos na FC. Ao final, o ensaio apresentou 100% de sensibilidade e 98,2% de especificidade com valores preditivo positivo e negativo de 97,7% e 100%, respectivamente. O teste de concordância kappa foi 0,98 e a repetibilidade intra e interplaca ficaram em 8,8 e 10,3%, respectivamente. Diante dos resultados obtidos durante os ensaios, conclui-se que o teste de ELISA indireto pode ser utilizado como uma ferramenta de diagnóstico eficiente. Entretanto, mais ensaios devem ser

  16. Developing a Roadmap for US Divertor and PMI Research in the ITER Era

    Science.gov (United States)

    Hill, D. N.; Lipschultz, B.; Whyte, D. G.; Garofalo, A. M.; Leonard, A. W.; Maingi, R.

    2013-10-01

    The role of existing and candidate future facilities for developing driven core, boundary plasma and plasma-facing components (PFCs) solutions for burning plasma experiments will be discussed in light of scientific and technical challenges, testing capabilities, scheduling implications, and cost. Present experiments point to likely integrated core-edge solutions which may enable steady-state high-gain, high power density operation; focused research on existing tokamak facilities could strengthen confidence significantly. In parallel, both existing and new candidate materials suitable for testing under high neutron fluence can be developed and qualified. We will also discuss the potential role of new facilities in closing the knowledge gaps to a Fusion Nuclear Science Facility (FNSF), and what form the final step of integrating core and edge solutions will be (separate, or as part of an FNSF) in terms of size, goals and cost. Supported by the US DOE under DE-AC52-07NA27344, DE-FC02-99ER54512, DE-SC00-02060, DE-FG02-04ER54762, DE-FC-02-04ER54698, and DE-AC02-09CH11466.

  17. Detection of serpentine in exogenic carbonaceous chondrite material on Vesta from Dawn FC data

    Science.gov (United States)

    Nathues, Andreas; Hoffmann, Martin; Cloutis, Edward A.; Schäfer, Michael; Reddy, Vishnu; Christensen, Ulrich; Sierks, Holger; Thangjam, Guneshwar Singh; Le Corre, Lucille; Mengel, Kurt; Vincent, Jean-Baptist; Russell, Christopher T.; Prettyman, Tom; Schmedemann, Nico; Kneissl, Thomas; Raymond, Carol; Gutierrez-Marques, Pablo; Hall, Ian; Büttner, Irene

    2014-09-01

    The Dawn mission’s Framing Camera (FC) observed Asteroid (4) Vesta in 2011 and 2012 using seven color filters and one clear filter from different orbits. In the present paper we analyze recalibrated HAMO color cubes (spatial resolution ∼60 m/pixel) with a focus on dark material (DM). We present a definition of highly concentrated DM based on spectral parameters, subsequently map the DM across the Vestan surface, geologically classify DM, study its spectral properties on global and local scales, and finally, compare the FC in-flight color data with laboratory spectra. We have discovered an absorption band centered at 0.72 μm in localities of DM that show the lowest albedo values by using FC data as well as spectral information from Dawn’s imaging spectrometer VIR. Such localities are contained within impact-exposed outcrops on inner crater walls and ejecta material. Comparisons between spectral FC in-flight data, and laboratory spectra of meteorites and mineral mixtures in the wavelength range 0.4-1.0 μm, revealed that the absorption band can be attributed to the mineral serpentine, which is typically present in CM chondrites. Dark material in its purest form is rare on Vesta’s surface and is distributed globally in a non-uniform manner. Our findings confirm the hypothesis of an exogenic origin of the DM by the infall of carbonaceous chondritic material, likely of CM type. It further confirms the hypothesis that most of the DM was deposited by the Veneneia impact.

  18. Análise da tendência temporal de dano renal agudo entre pacientes graves conforme polimorfi smos I/D e -262A > T da enzima conversora da angiotensina Temporal trends in acute renal dysfunction among critically ill patients according to I/D and -262A > T ACE polymorphisms

    Directory of Open Access Journals (Sweden)

    José Alberto Rodrigues Pedroso

    2010-06-01

    Full Text Available A síndrome de disfunção de múltiplos órgãos e sistemas (DMOS e a disfunção renal aguda compartilham muitos dos fatores fisiológicos envolvidos em seu desenvolvimento. Estudos recentes correlacionam suscetibilidades individuais, determinadas geneticamente, à disfunção de órgãos em pacientes criticamente enfermos, situação em que o gene da enzima conversora da angiotensina (ECA poderia ser um candidato para elucidar predisposição ou risco genético. Nosso objetivo foi examinar os efeitos da presença de dois polimorfismos, I/D e -262A > T, na disfunção renal em pacientes agudamente graves do Sul do Brasil. O escore SOFA (sequential organ failure assessment à admissão e a tendência da função renal (medida pelo escore renal diário do SOFA foram determinados em pacientes de unidade de terapia intensiva (UTI. Um total de 153 pacientes adultos (79 homens foi incluído no estudo. Houve monitoração diária da função renal durante toda a permanência na UTI e também pós-UTI. Observou-se a progressão para insuficiência renal (SOFA 3 e 4 nos primeiros sete dias de internação em UTI, bem como necessidade de diálise. As frequências genotípicas gerais em nossa amostra foram II = 0,17; ID = 0,46; DD = 0,37; e AA = 0,30; AT = 0,55; TT = 0,15; e as frequências alélicas foram I = 0,40, D = 0,60; e A = 0,56; T = 0,44. Este é o primeiro estudo para verificar a influência de polimorfismos I/D e -262A > T da ECA em disfunção renal aguda em pacientes críticos. Nenhuma associação significativa foi encontrada entre os genótipos ou as frequências alélicas e a evolução da função renal. Os polimorfismos I/D e -262A > T da ECA não têm impacto significativo sobre a evolução da função renal durante a primeira semana de internação na UTI nem exercem qualquer influência sobre a mortalidade em pacientes graves.Multiple organ failure syndrome and acute renal dysfunction share many of physiologic factors involved in

  19. Group-ID based RFID Mutual Authentication

    Directory of Open Access Journals (Sweden)

    LEE, Y.

    2013-11-01

    Full Text Available For passive type RFID tags, EPCglobal Class 1 Generation-2 Revision is used widely as a de facto standard. As it was designed for low cost, it is quite vulnerable to security issues, such as privacy concerns. This paper presents a new RFID mutual authentication protocol, which is designed to be configured on EPC Gen2 platform and to meet various security requirements while providing efficiency using PRNG (Pseudo Random Number Generator. Group-ID is used to minimize the authentication time. Security analysis of the proposed protocol is discussed.

  20. Influencia de la relación velocidad de corte-avance en la calidad superficial de muestras taladradas de fibra de carbono

    Directory of Open Access Journals (Sweden)

    Álvarez, M.

    2005-12-01

    Full Text Available The industrial applications of Carbon Fiber (CF have increased in the last years. Particularly, in the aerospace industry, these materials are usually drilled because of the assembly requirements of the structural elements of airships. However, drilling of CF can be accompanied of troubles such as delaminations, lost of surface quality and quick wear of cutting tool. In this work, a study on the surface quality of CF drilled samples as a function of the cutting parameters has been achieved.

    En los últimos años, la fibra de carbono (FC encuentra, cada vez, más aplicaciones en los distintos sectores industriales. En el caso particular de la industria aeronáutica, este tipo de materiales se somete frecuentemente a operaciones de taladrado formando parte de estructuras híbridas PC/substrato metálico, debido a las necesidades de montaje en los elementos estructurales de una aeronave. Sin embargo, en el taladrado de FC se puede presentar una serie de problemas como las delaminaciones, la pérdida de calidad en el acabado superficial o el desgaste rápido y excesivo de la herramienta de corte. En este trabajo se lleva a cabo un primer estudio de la calidad de acabado superficial obtenida en muestras de FC taladradas en función de las condiciones de corte impuestas.

  1. Determination of Trace Elements in Uranium by HPLC-ID-ICP-MS: NTNFC Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Manard, Benjamin Thomas [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Wylie, Ernest Miller II [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Xu, Ning [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Tandon, Lav [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-10-19

    This report covers the FY 16 effort for the HPLC-ID-ICP-MS methodology 1) sub-method validation for the group I&II elements, 2) sub-method stood-up and validation for REE, 3) sub-method development for the transition element, and 4) completion of a comprehensive SOP for three families of elements.

  2. Microbial desulfurization of coal

    International Nuclear Information System (INIS)

    Bos, P.; Boogerd, F.C.; Kuenen, J.G.

    1992-01-01

    In recent years, studies have been initiated to explore the possibilities of the use of biological systems in coal technology. This chapter discusses the principles behind the bioprocessing of coal, the advantages and disadvantages, and the economic feasibility of the process. For large-scale, coal-using, energy-producing plants, stack gas cleaning should be the treatment of choice. Biodesulfurization is preferable with industrial, small-scale, energy-producing plants. Treatment of the stack gases of these plants is not advisable because of high investment costs. Finally, it should be realized that biodesulfurization produces a waste stream that needs further treatment. 91 refs

  3. Efecto del estiramiento estático de 15, 30 y 60 segundos sobre el rango de movimiento de la flexión de cadera con rodilla extendida

    Directory of Open Access Journals (Sweden)

    Claudia Lucía Ariza-García

    2014-06-01

    Full Text Available Objetivo: Evaluar el efecto de tres duraciones de estiramiento estático pasivo, 15, 30 y 60 segundos (s para aumentar el rango de movimiento de la flexión de cadera (ROM-FC. Metodología: Ensayo Clínico Controlado Aleatorizado. Nueve estudiantes mujeres (21,7 ± 4,3 años fueron asignadas aleatoriamente a tres grupos, 15 (G15, 30 (G30 y 60 (G60 s; n = 3 en cada grupo. El estiramiento de la musculatura isquitotibial se realizó en decúbito supino, máxima flexión de cadera, rodilla extendida y dorsiflexión de pie con ayuda de una banda elástica; dos veces consecutivas en ambos miembros inferiores, tres veces/semana, por tres semanas. El resultado principal fue el cambio del ROM-FC izquierda y derecha al finalizar la intervención. Se usó la prueba t de student y el análisis ANOVA. Resultados:  Las diferencias entre evaluaciones en G15 y G30 fueron estadísticamente significativas para el miembro inferior derecho. No se encontraron diferencias significativas en el grupo G60 del hemicuerpo derecho ni en grupo alguno del hemicuerpo izquierdo. Tampoco para el aumento de ROM-FC entre los tres grupos ni entre hemicuerpos. Conclusión: El estiramiento estático pasivo de 15 y 30 s de duración fue efectivo para aumentar el ROM-FC derecho. Se requieren futuros estudios con un tamaño de muestra adecuado para detectar diferencias en el aumento del ROM-FC según duración del estiramiento y hemicuerpos.

  4. Clinical accuracy of a PLEX-ID flu device for simultaneous detection and identification of influenza viruses A and B.

    Science.gov (United States)

    Tang, Yi-Wei; Lowery, Kristin S; Valsamakis, Alexandra; Schaefer, Virginia C; Chappell, James D; White-Abell, Jill; Quinn, Criziel D; Li, Haijing; Washington, Cicely A; Cromwell, Jenna; Giamanco, Chantel M; Forman, Michael; Holden, Jeffery; Rothman, Richard E; Parker, Michelle L; Ortenberg, Elaine V; Zhang, Lei; Lin, Yea-Lin; Gaydos, Charlotte A

    2013-01-01

    Respiratory tract infections caused by influenza A and B viruses often present nonspecifically, and a rapid, high-throughput laboratory technique that can identify influenza viruses is clinically and epidemiologically desirable. The PLEX-ID Flu assay (Abbott Molecular Inc., Des Plaines, IL) incorporates multilocus PCR and electrospray ionization-mass spectrometry to detect and differentiate influenza A 2009 H1N1 (H1N1-p), seasonal H1N1 (H1N1-s), influenza A H3N2, and influenza B viruses in nasopharyngeal swab (NPS) specimens. The clinical performance characteristics of the PLEX-ID Flu assay in symptomatic patients were determined in this multicenter trial. A total of 2,617 prospectively and retrospectively collected NPS specimens from patients with influenza-like illness between February 2008 and 28 May 2010 were eligible for inclusion in the study. Each specimen was tested in parallel by the PLEX-ID Flu assay and by the Prodesse ProFLU+ assay (Prodesse Inc., Madison, WI), to detect influenza A and B viruses. Specimens testing positive for influenza A virus by ProFLU+ were subtyped as H1N1-p, H1N1-s, or H3N2 by using the ProFAST+ assay (Gen-Probe Prodesse Inc.). The reproducibility of the PLEX-ID Flu assay ranged from 98.3 to 100.0%, as determined by testing a nine-specimen panel at three clinical sites on each of 5 days. Positive percent agreements (PPAs) and negative percent agreements (NPAs) of the PLEX-ID Flu assay were 94.5% and 99.0% for influenza A virus and 96.0% and 99.9% for influenza B virus, respectively. For the influenza A virus subtyping characterization, the PLEX-ID Flu assay had PPAs and NPAs of 98.3% and 97.5% for H1N1-p, 88.6% and 100.0% for H1N1-s, and 98.0% and 99.9% for H3N2, respectively. The overall agreements between the PLEX-ID and Prodesse ProFLU+/ProFAST+ assays were 97.1 to 100.0%. Bidirectional Sanger sequencing analysis revealed that 87.5% of 96 discrepant results between the PLEX-ID Flu and ProFLU+/ProFAST+ assays were found upon

  5. Antigen-Specific IgG ameliorates allergic airway inflammation via Fcγ receptor IIB on dendritic cells

    Directory of Open Access Journals (Sweden)

    Karasuyama Hajime

    2011-04-01

    Full Text Available Abstract Background There have been few reports on the role of Fc receptors (FcRs and immunoglobulin G (IgG in asthma. The purpose of this study is to clarify the role of inhibitory FcRs and antigen presenting cells (APCs in pathogenesis of asthma and to evaluate antigen-transporting and presenting capacity by APCs in the tracheobronchial mucosa. Methods In FcγRIIB deficient (KO and C57BL/6 (WT mice, the effects of intratracheal instillation of antigen-specific IgG were analysed using the model with sensitization and airborne challenge with ovalbumin (OVA. Thoracic lymph nodes instilled with fluorescein-conjugated OVA were analysed by fluorescence microscopy. Moreover, we analysed the CD11c+ MHC class II+ cells which intaken fluorescein-conjugated OVA in thoracic lymph nodes by flow cytometry. Also, lung-derived CD11c+ APCs were analysed by flow cytometry. Effects of anti-OVA IgG1 on bone marrow dendritic cells (BMDCs in vitro were also analysed. Moreover, in FcγRIIB KO mice intravenously transplanted dendritic cells (DCs differentiated from BMDCs of WT mice, the effects of intratracheal instillation of anti-OVA IgG were evaluated by bronchoalveolar lavage (BAL. Results In WT mice, total cells and eosinophils in BAL fluid reduced after instillation with anti-OVA IgG1. Anti-OVA IgG1 suppressed airway inflammation in hyperresponsiveness and histology. In addition, the number of the fluorescein-conjugated OVA in CD11c+ MHC class II+ cells of thoracic lymph nodes with anti-OVA IgG1 instillation decreased compared with PBS. Also, MHC class II expression on lung-derived CD11c+ APCs with anti-OVA IgG1 instillation reduced. Moreover, in vitro, we showed that BMDCs with anti-OVA IgG1 significantly decreased the T cell proliferation. Finally, we demonstrated that the lacking effects of anti-OVA IgG1 on airway inflammation on FcγRIIB KO mice were restored with WT-derived BMDCs transplanted intravenously. Conclusion Antigen-specific IgG ameliorates

  6. Alternatives of Treatment and Final Disposition of the Solid Hospital residuals; Alternativas de Tratamiento y Disposicion Final de los Residuos Solidos Hospitalarios

    Energy Technology Data Exchange (ETDEWEB)

    Meza Monge, K

    1998-07-01

    The current handling, treatment and final disposition of the hospital solid waste in Costa Rica are considered inadequate or at least insufficient. This situation represents a serious danger for the population's health and the environment, because they are exposed to infectious agents, toxic substances and even radioactive products that are generated among the residuals of the centers of health. This work, alternatives propose for the treatment and adequate final disposition of the solid waste produced in the hospitals of the country. They take into consideration the characteristics that present these residuals, the advantages and disadvantages of each one of the existent techniques and the technical and economic possibilities of the country. For this purpose, in first instance, a revision about the properties, the quality and the quantity of the solid waste produced by the national hospital centers was carried out. Also, a diagnostic of the current situation of the treatment and final disposition of these residuals in some of the most important hospitals of the country, as well as of the possibilities of physical space with that they count on was carried out. Then, the existent different treatment techniques and final disposition for the solid waste that comes from the centers of health are described, as well as their advantages and disadvantages and a comparative analysis of the same ones is carried out. The objective is completed, since alternatives of treatment and final disposition that are considered appropriate for this type of residuals are planned. Nevertheless, in the future, more detailed investigations and studies of feasibility, with the purpose of developing handling programs and elimination of the solid waste for each one of the hospital centers in Costa Rica should be carried out. (Author) [Spanish] El actual manejo, tratamiento y disposicion final de los desechos solidos hospitalarios en Costa Rica se considera inadecuado o cuando menos

  7. Syk-dependent tyrosine phosphorylation of 3BP2 is required for optimal FcRγ-mediated phagocytosis and chemokine expression in U937 cells.

    Science.gov (United States)

    Chihara, Kazuyasu; Kato, Yuji; Yoshiki, Hatsumi; Takeuchi, Kenji; Fujieda, Shigeharu; Sada, Kiyonao

    2017-09-13

    The adaptor protein c-Abl SH3 domain binding protein-2 (3BP2) is tyrosine phosphorylated by Syk in response to cross-linking of antigen receptors, which in turn activates various immune responses. Recently, a study using the mouse model of cherubism, a dominant inherited disorder caused by mutations in the gene encoding 3BP2, showed that 3BP2 is involved in the regulation of phagocytosis mediated by Fc receptor for IgG (FcγR) in macrophages. However, the molecular mechanisms underlying 3BP2-mediated regulation of phagocytosis and the physiological relevance of 3BP2 tyrosine phosphorylation remains elusive. In this study, we established various gene knockout U937 cell lines using the CRISPR/Cas9 system and found that 3BP2 is rapidly tyrosine phosphorylated by Syk in response to cross-linking of FcγRI. Depletion of 3BP2 caused significant reduction in the Fc receptor γ chain (FcRγ)-mediated phagocytosis in addition to the FcγRI-mediated induction of chemokine mRNA for IL-8, CCL3L3 and CCL4L2. Syk-dependent tyrosine phosphorylation of 3BP2 was required for overcoming these defects. Finally, we found that the PH and SH2 domains play important roles on FcγRI-mediated tyrosine phosphorylation of 3BP2 in HL-60 cells. Taken together, these results indicate that Syk-dependent tyrosine phosphorylation of 3BP2 is required for optimal FcRγ-mediated phagocytosis and chemokine expression.

  8. Comparative studies on Fc receptors for IgG on resting and activated T lymphocytes

    International Nuclear Information System (INIS)

    Hueckel, C.; Jensen, H.L.; Rychly, J.; Sandor, M.; Erdei, A.; Gergely, J.

    1986-01-01

    Fc-receptors for IgG (FcγR) on resting (i.e. freshly prepared) and mitogen (Con A) or alloantigen-activated mouse spleen T cells were compared using binding of different markers such as 125 I-labelled immune complexes, 125 I-labelled anti FcγR monoclonal antibody, FITC-labelled aggr. IgG and sheep erythrocytes covered with specific antibody (EA rosetting). C3b receptors were detected by rosetting with sheep erythrocytes covered with antibody and complement (EAC rosetting). The electrophoretic mobility of the cells without or after binding of aggr. IgG was also tested. Differences between resting and activated T cells were found: (1) After activation of T cells by mitogen or alloantigen, a proportion of FcγR-positive cells increased two to four times. (2) FcγR number per FcγR-positive cell seemed to be higher on activated then on resting cells. (3) FcγR-positive resting cells did not shed their FcγR upon incubation at 4 0 C followed by incubation at 37 0 C, but FcγR-positive activated cells shed a remarkable proportion of their FcγR on the same conditions. (4) Binding of aggr. IgG caused a decrease of electrophoretic mobility of activated but not resting cells. (5) FcγR-positive resting cells were also C3b receptor-positive, whereas FcγR-positive activated cells had no detectable C3b receptors. (author)

  9. Perfil de los usuarios activos y finales de clubes deportivos de Bogotá D. C.

    Directory of Open Access Journals (Sweden)

    Billy Crissien

    2010-08-01

    hacia los clubes en las diferentes disciplinas deportivas y analizar el caso particular de los hinchas de equipos profesionales. Para esto, se desarrolló una investigación descriptiva con encuestas a 336 usuarios activos y finales de clubes deportivos en la ciudad de Bogotá. Los resultados muestran un perfil diferencial para jugadores y espectadores a nivel de estilo de vida, hábitos saludables y patrón de interacción con los eventos deportivos. Los hinchas de los equipos profesionales de fútbol poseen un perfil similar al de los usuarios finales de los clubes de otras disciplinas, pero evidencian un nivel de involucramiento mucho más alto.

  10. Transtorno de ansiedade na infância como preditor de psicopatologia em adultos

    OpenAIRE

    Gonçalves, Débora Hexsel; Heldt, Elizeth Paz da Silva

    2009-01-01

    O objetivo deste trabalho foi realizar uma revisão sistemática sobre os transtornos de ansiedade na infância como fatores de risco para psicopatologias na idade adulta. Para isso, foram utilizadas as bases de dados SciELO, LILACS, Adolec e PubMed, com busca de estudos publicados nos últimos 10 anos. Dez artigos preencheram plenamente os critérios de inclusão para o aceite final. Todos os trabalhos sustentam a idéia de que os transtornos de ansiedade na infância são preditores e podem atuar co...

  11. 40 CFR 86.612-97 - Suspension and revocation of certificates of conformity.

    Science.gov (United States)

    2010-07-01

    ... Heavy-Duty Vehicles § 86.612-97 Suspension and revocation of certificates of conformity. (a) The... individual vehicles after suspension of a certificate, the certificate is reinstated for any vehicle actually... 40 Protection of Environment 19 2010-07-01 2010-07-01 false Suspension and revocation of...

  12. Biodesulfurization of dibenzothiophene in Escherichia coli is enhanced by expression of a Vibrio harveyi oxidoreductase gene

    Energy Technology Data Exchange (ETDEWEB)

    Reichmuth, D.S.; Hittle, J.L.; Blanch, H.W.; Keasling, J.D.

    2000-01-05

    One possible alternative to current fuel hydrodesulfurization methods is the use of microorganisms to remove sulfur compounds. Biodesulfurization requires much milder processing conditions, gives higher specificity, and does not require molecular hydrogen. In the present work the authors have produced two compatible plasmids: pDSR3, which allows Escherichia coli to convert dibenzothiophene (DBT) to hydroxybiphenyl (HBP), and pDSR2, which produces a Vibrio harveyi flavin oxidoreductase. The authors show that the flavin oxidoreductase enhances the rate of DBT removal when co-expressed in vivo with the desulfurization enzymes. The plasmids pDSR2 and pDSR3 were co-expressed in growing cultures. The expression of oxidoreductase caused an increase in the rate of DBT removal but a decrease in the rate of HBP production. The maximum rate of DBT removal was 8 mg/h {center{underscore}dot} g dry cell weight. Experiments were also conducted using resting cells with the addition of various carbon sources. It was found that the addition of glucose or glycerol to cultures with oxidoreductase expression produced the highest DBT removal rate. The culture with acetate and no oxidoreductase expression had the highest level of HBP production. For all carbon sources, the DBT removal rate was faster and the HBP generation rate slower with the expression of the oxidoreductase. Analysis of desulfurization intermediates indicates that the last enzyme in the pathway may be limiting.

  13. 21 CFR 866.5530 - Immunoglobulin G (Fc fragment specific) immunological test system.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Immunoglobulin G (Fc fragment specific... Test Systems § 866.5530 Immunoglobulin G (Fc fragment specific) immunological test system. (a) Identification. An immunoglobulin G (Fc fragment specific) immunological test system is a device that consists of...

  14. The production of KIR-Fc fusion proteins and their use in a multiplex HLA class I binding assay.

    Science.gov (United States)

    Hilton, Hugo G; Moesta, Achim K; Guethlein, Lisbeth A; Blokhuis, Jeroen; Parham, Peter; Norman, Paul J

    2015-10-01

    Soluble recombinant proteins that comprise the extracellular part of a surface expressed receptor attached to the Fc region of an IgG antibody have facilitated the determination of ligand specificity for an array of immune system receptors. Among such receptors is the family of killer cell immunoglobulin-like receptors (KIR) that recognize HLA class I ligands. These receptors, expressed on natural killer (NK) cells and T cells, play important roles in both immune defense and placental development in early pregnancy. Here we describe a method for the production of two domain KIR-Fc fusion proteins using baculovirus infected insect cells. This method is more scalable than traditional mammalian cell expression systems and produces efficiently folded proteins that carry posttranslational modifications found in native KIR. We also describe a multiplex binding assay using the Luminex platform that determines the avidity and specificity of two domain KIR-Fc for a panel of microbeads, each coated with one of 97 HLA class I allotypes. This assay is simple to perform, and represents a major improvement over the assays used previously, which were limited in the number of KIR and HLA class I combinations that could be assayed at any one time. The results obtained from this assay can be used to predict the response of NK cell and T cells when their KIR recognize HLA class I. Copyright © 2015 Elsevier B.V. All rights reserved.

  15. Estimación de la oferta de frutos en el gradiente vertical de un bosque del medio Caquetá, Amazonía colombiana

    OpenAIRE

    Nicolás Castaño Arboleda

    2003-01-01

    Se estimó id="normalb" class="text3">la id="normalb" class="text3">oferta id="normalb" class="text3">de id="normalb" class="text3">frutos id="normalb" class="text3">en id="normalb" class="text3">un id="normalb" class="text3">bosque id="normalb" class="text3">de tierra firme id="normalb" ...

  16. A proposed HTTP service based IDS

    Directory of Open Access Journals (Sweden)

    Mohamed M. Abd-Eldayem

    2014-03-01

    Full Text Available The tremendous growth of the web-based applications has increased information security vulnerabilities over the Internet. Security administrators use Intrusion-Detection System (IDS to monitor network traffic and host activities to detect attacks against hosts and network resources. In this paper IDS based on Naïve Bayes classifier is analyzed. The main objective is to enhance IDS performance through preparing the training data set allowing to detect malicious connections that exploit the http service. Results of application are demonstrated and discussed. In the training phase of the proposed IDS, at first a feature selection technique based on Naïve Bayes classifier is used, this technique identifies the most important HTTP traffic features that can be used to detect HTTP attacks. In the testing and running phases proposed IDS classifies the network traffic based on the requested service, then based on the selected features Naïve Bayes classifier is used to analyze the HTTP service based traffic and identifies the HTTP normal connections and attacks. The performance of the IDS is measured through experiments using NSL-KDD data set. The results show that the detection rate of the IDS is about 99%, the false-positive rate is about 1%, and the false-negative rate is about 0.25%; therefore, proposed IDS holds the highest detection rate and the lowest false alarm compared with other leading IDS. In addition, the proposed IDS based on Naïve Bayes is used to classify network connections as a normal or attack. And it holds a high detection rate and a low false alarm.

  17. 40 CFR 97.286 - Withdrawal from CAIR SO2 Trading Program.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Withdrawal from CAIR SO2 Trading... PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS CAIR SO2 Opt-in Units § 97.286 Withdrawal from CAIR SO2 Trading Program. Except as provided under paragraph (g) of...

  18. 40 CFR 97.83 - Applying for NOX Budget opt-in permit.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 20 2010-07-01 2010-07-01 false Applying for NOX Budget opt-in permit... PROGRAMS (CONTINUED) FEDERAL NOX BUDGET TRADING PROGRAM AND CAIR NOX AND SO2 TRADING PROGRAMS Individual Unit Opt-ins. § 97.83 Applying for NOX Budget opt-in permit. (a) Applying for initial NO X Budget opt...

  19. 77 FR 16556 - Kootenai National Wildlife Refuge, Boundary County, ID; Final Comprehensive Conservation Plan and...

    Science.gov (United States)

    2012-03-21

    ...: Dianna Ellis, Refuge Manager, Kootenai National Wildlife Refuge, 287 Westside Road, Bonners Ferry, ID..., wildlife observation and photography, and environmental education and interpretation. We will review and... safety. Allowing big game and upland game (grouse) hunting on the 295 acres of timber on the west side of...

  20. Incentivos y desincentivos de la industria farmacéutica privada para la I+D de nuevos medicamentos Incentives and disincentives for research and development of new drugs by the pharmaceutical industry

    Directory of Open Access Journals (Sweden)

    Pasqualina Curcio Curcio

    2008-10-01

    Full Text Available En el trabajo se desarrolló un modelo con los factores que influyen sobre la decisión de I+D de la industria farmacéutica. Los factores son el riesgo de contagio y la posibilidad de controlarlo; la letalidad y la presencia de curas o tratamientos; el ingreso; el número de personas que demandan y los costos de oportunidad de la empresa. Las empresas invertirán en mercados con demandas más inelásticas (enfermedades muy contagiosas sin posibilidad de controlar la transmisión y/o muy letales sin curas o tratamientos y/o donde los demandantes tienen elevados ingresos y/o son numerosos. No invertirá en mercados donde sus costos marginales son superiores a sus ingresos marginales, particularmente cuando sus costos incrementan permanentemente como consecuencia del aumento del costo de oportunidad generado por lo que dejaría de ganar en otros mercados. Para estos casos, las políticas de subsidio de la I+D no son efectivas, por lo tanto, éstas deben orientarse al fortalecimiento de las investigaciones, tanto básica como aplicada, realizadas por las instituciones públicas o sin fines de lucro.The authors present a model with factors that influence research and development decisions by the pharmaceutical industry: risk of disease transmission and possibility of control; case-fatality and the presence of cure or treatments; income; number of persons who demand the medicine; and opportunity costs for the company. Companies tend to invest in markets with inelastic demand (highly contagious diseases with no possibility of controlling transmission and/or very lethal diseases without treatment and/or where there is a large population or high per capita income. Companies tend not to invest in markets where marginal costs exceed marginal income, particularly when costs increase permanently as a consequence of rising opportunity costs generated by foregoing profit in other markets. In such cases, policies to subsidize R&D are not effective, and

  1. Fc receptor gamma subunit polymorphisms and systemic lupus erythematosus

    International Nuclear Information System (INIS)

    Al-Ansari, Aliya; Ollier, W.E.; Gonzalez-Gay, Miguel A.; Gul, Ahmet; Inanac, Murat; Ordi, Jose; Teh, Lee-Suan; Hajeer, Ali H.

    2004-01-01

    To investigate the possible association between Fc receptor gamma polymorphisms and systemic lupus erythematosus (SLE). We have investigated the full FcR gamma gene for polymorphisms using polymerase chain reaction (PCR)-single strand confirmational polymorphisms and DNA sequencing .The polymorphisms identified were genotype using PCR-restriction fragment length polymorphism. Systemic lupus erythematosus cases and controls were available from 3 ethnic groups: Turkish, Spanish and Caucasian. The study was conducted in the year 2001 at the Arthritis Research Campaign, Epidemiology Unit, Manchester University Medical School, Manchester, United Kingdom. Five single nucleotide polymorphisms were identified, 2 in the promoter, one in intron 4 and, 2 in the 3'UTR. Four of the 5 single nucleotide polymorphisms (SNPs) were relatively common and investigated in the 3 populations. Allele and genotype frequencies of all 4 investigated SNPs were not statistically different cases and controls. fc receptor gamma gene does not appear to contribute to SLE susceptibility. The identified polymorphisms may be useful in investigating other diseases where receptors containing the FcR gamma subunit contribute to the pathology. (author)

  2. Nestor Capdevila, Le concept d’idéologie, Paris, PUF, 2004, 326 pages, 25 euros.

    Directory of Open Access Journals (Sweden)

    Marie GAILLE-NIKODIMOV

    2005-09-01

    Full Text Available Que la philosophie puisse se pratiquer dans toute sa rigueur conceptuelle en s’appliquant à des notions politiques, voilà qui n’a pas été et n’est pas toujours évident pour tous. Le concept d’idéologie de Nestor Capdevila est une lecture tout indiquée pour les sceptiques. Le pari n’est pourtant pas gagné a priori : ce terme, forgé en 1798 par Destutt de Tracy pour désigner la science des idées prises au sens général de perceptions, est on ne peut plus fuyant. S’il n’a pas, à l’origine, la con...

  3. Rapid polyclonal desensitization with antibodies to IgE and FcεRIα.

    Science.gov (United States)

    Khodoun, Marat V; Kucuk, Zeynep Yesim; Strait, Richard T; Krishnamurthy, Durga; Janek, Kevin; Lewkowich, Ian; Morris, Suzanne C; Finkelman, Fred D

    2013-06-01

    Rapid desensitization, a procedure in which persons allergic to an antigen are treated at short intervals with increasing doses of that antigen until they tolerate a large dose, is an effective, but risky, way to induce temporary tolerance. We wanted to determine whether this approach can be adapted to suppress all IgE-mediated allergies in mice by injecting serially increasing doses of monoclonal antibodies (mAbs) to IgE or FcεRIα. Active and passive models of antigen- and anti-IgE mAb-induced IgE-mediated anaphylaxis were used. Mice were desensitized with serially increasing doses of anti-IgE mAb, anti-FcεRIα mAb, or antigen. Development of shock (hypothermia), histamine and mast cell protease release, cytokine secretion, calcium flux, and changes in cell number and FcεRI and IgE expression were evaluated. Rapid desensitization with anti-IgE mAb suppressed IgE-mediated immediate hypersensitivity; however, some mice developed mild anaphylaxis during desensitization. Rapid desensitization with anti-FcεRIα mAb that only binds FcεRI that is not occupied by IgE suppressed both active and passive IgE-mediated anaphylaxis without inducing disease. It quickly, but temporarily, suppressed IgE-mediated anaphylaxis by decreasing mast cell signaling through FcεRI, then slowly induced longer lasting mast cell unresponsiveness by removing membrane FcεRI. Rapid desensitization with anti-FcεRIα mAb was safer and longer lasting than rapid desensitization with antigen. A rapid desensitization approach with anti-FcεRIα mAb safely desensitizes mice to IgE-mediated anaphylaxis by inducing mast cell anergy and later removing all mast cell IgE. Rapid desensitization with an anti-human FcεRIα mAb may be able to prevent human IgE-mediated anaphylaxis. Copyright © 2013 American Academy of Allergy, Asthma & Immunology. Published by Mosby, Inc. All rights reserved.

  4. Análisis de crecimiento y absorción de nutrimentos de frutos de mango, cultivares Tommy Atkins y Keith

    Directory of Open Access Journals (Sweden)

    Róger Fallas

    2010-01-01

    y se detalla información para adaptarlas a diferentes localidades. Se determinó que cada kg de fruta fresca de Tommy Atkins y Keith, respectivamente, consume 1,54 y 1,59 g de K; 1,07 y 1,06 g de N; 0,20 y 0,12 g de P; 0,29 y 0,14 g de Ca; 0,19 y 0,15 g de Mg; 0,07 y 0,09 g de S; 8,5 y 2,5 mg de Fe; 3,5 y 2,1 mg de Mn; 0,7 y 1,6 mg de B; 1,2 y 0,97 mg de Zn; y 1,1 y 0,9 mg de Cu. Se sugieren etapas adecuadas para realizar fertilizaciones foliares y se encontró que algunos elementos no deben aplicarse simultáneamente, por posibles antagonismos. Para obtener frutos de Tommy Atkins con peso fresco entre 400 y 500 g se debe cosechar cuando el diámetro fluctúe entre 8,7 y 9,0 cm, o el largo entre 10,7 y 11,2 cm. Para obtener frutos de Keith con un peso entre 600 y 750 g, se debe colectar cuando el diámetro varíe entre 9,4 y 9,8 cm o el largo entre 13,5 y 14,0 cm, según el análisis de regresión.

  5. Suplementação oral de L-carnitina associada ao treinamento físico e muscular respiratório na doença pulmonar obstrutiva crônica: estudo preliminar Oral supplementation of L-carnitine combined with exercise and respiratory training in patients with chronic obstructive pulmonary disease: preliminary study

    Directory of Open Access Journals (Sweden)

    Matheus Guedes Fernandes Silva

    2012-12-01

    Full Text Available Avaliar os efeitos da suplementação oral de L-carnitina associada ao treinamento físico e muscular respiratório na doença pulmonar obstrutiva crônica (DPOC. Participaram 14 voluntários com idade de 65±10,4 anos e diagnóstico clínico de DPOC moderado, classificados de acordo com a espirometria prévia. Os voluntários foram divididos em grupo treino esteira (GTE e grupo treino muscular respiratório (GTMR. Realizaram o teste de caminhada de seis minutos (TC6', teste de caminhada com carga progressiva (TCP, avaliação nutricional do índice de massa corpórea (IMC, dose diária recomendada de L-carnitina, pressões inspiratórias (PImáx e expiratórias máximas (PEmáx. Fizeram 30 min de caminhada em esteira, 3 vezes/semana por 10 semanas, e o GTMR realizou, ainda, 10 min de treinamento muscular inspiratório (Threshold® IMT e 10 min de treinamento muscular expiratório (Threshold® PEP à 50% da PImáx e PEmáx ajustados semanalmente. Após 10 semanas, foram reavaliados. No TC6' pré e pós-programa de treinamento físico, as variáveis alteradas foram: distância percorrida (DP, frequência cardíaca (FC final, pressão arterial sistólica (PAS final, pressão arterial diastólica (PAD final e Borg final no GTMR, no GTE as variáveis alteradas foram FC repouso, FC final, PAS final, Borg repouso e DP. Comparando os grupos no TC6, o GTE apresentou FC final, PAD final e Borg final maiores do que o GTMR na reavaliação; já no TCP, a FC final, PAS final, Borg final foram maiores no GTE, e DP foi maior no GTMR. Na avaliação respiratória, a PEmáx foi maior no GTMR na reavaliação. O treino aeróbio e suplementação de L-carnitina na DPOC otimizou a performance, a capacidade física e a tolerância ao esforço.To evaluate the effects of oral supplementation of L-carnitine associated with physical and respiratory muscles training in chronic obstructive pulmonary disease (COPD. Participated 14 COPD volunteers (65±10.4 years, divided

  6. Enhanced antibody-dependent cellular phagocytosis by chimeric monoclonal antibodies with tandemly repeated Fc domains.

    Science.gov (United States)

    Nagashima, Hiroaki; Ootsubo, Michiko; Fukazawa, Mizuki; Motoi, Sotaro; Konakahara, Shu; Masuho, Yasuhiko

    2011-04-01

    We previously reported that chimeric monoclonal antibodies (mAbs) with tandemly repeated Fc domains, which were developed by introducing tandem repeats of Fc domains downstream of 2 Fab domains, augmented binding avidities for all Fcγ receptors, resulting in enhanced antibody (Ab)-dependent cellular cytotoxicity. Here we investigated regarding Ab-dependent cellular phagocytosis (ADCP) mediated by these chimeric mAbs, which is considered one of the most important mechanisms that kills tumor cells, using two-color flow cytometric methods. ADCP mediated by T3-Ab, a chimeric mAb with 3 tandemly repeated Fc domains, was 5 times more potent than that by native anti-CD20 M-Ab (M-Ab hereafter). Furthermore, T3-Ab-mediated ADCP was resistant to competitive inhibition by intravenous Ig (IVIG), although M-Ab-mediated ADCP decreased in the presence of IVIG. An Fcγ receptor-blocking study demonstrated that T3-Ab mediated ADCP via both FcγRIA and FcγRIIA, whereas M-Ab mediated ADCP exclusively via FcγRIA. These results suggest that chimeric mAbs with tandemly repeated Fc domains enhance ADCP as well as ADCC, and that Fc multimerization may significantly enhance the efficacy of therapeutic Abs. Copyright © 2010 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

  7. FcεRI γ-Chain Negatively Modulates Dectin-1 Responses in Dendritic Cells

    Directory of Open Access Journals (Sweden)

    Yi-Gen Pan

    2017-10-01

    Full Text Available The inhibitory effect of immunoreceptor tyrosine-based activation motif (ITAM-containing adapters DAP12 and FcεRI γ-chain (FcRγ has been found in many immune functions. Herein, we have further explored the role of these adapters in C-type lectin receptors response. We identified that FcRγ, but not DAP12, could negatively regulate the Dectin-1 responses in dendritic cells (DCs. Loss of FcRγ or both DAP12 and FcRγ enhanced the maturation and cytokine production in DCs upon Dectin-1 activation compared to normal cells, whereas DCs lacking only DAP12 showed little changes. In addition, increments of T cell activation and T helper 17 polarization induced by FcRγ-deficient DCs were observed both in vitro and in vivo. Examining the Dectin-1 signaling, we revealed that the activations of several signaling molecules were augmented in FcRγ-deficient DCs stimulated with Dectin-1 ligands. Furthermore, we demonstrated that the association of phosphatases SHP-1 and PTEN with FcRγ may contribute to the negative regulation of FcRγ in Dectin-1 activation in DCs. These results extend the inhibitory effect of ITAM-containing adapters to Dectin-1 response in immune functions, even though Dectin-1 contains an ITAM-like intracellular domain. According to the role of Dectin-1 in responding to microbes and tumor cells, our finding may have applications in the development of vaccine and cancer therapy.

  8. Genetic characterization of Venezuelan equine encephalitis virus from Bolivia, Ecuador and Peru: identification of a new subtype ID lineage.

    Science.gov (United States)

    Aguilar, Patricia V; Adams, A Paige; Suárez, Victor; Beingolea, Luis; Vargas, Jorge; Manock, Stephen; Freire, Juan; Espinoza, Willan R; Felices, Vidal; Diaz, Ana; Liang, Xiaodong; Roca, Yelin; Weaver, Scott C; Kochel, Tadeusz J

    2009-09-15

    Venezuelan equine encephalitis virus (VEEV) has been responsible for hundreds of thousands of human and equine cases of severe disease in the Americas. A passive surveillance study was conducted in Peru, Bolivia and Ecuador to determine the arboviral etiology of febrile illness. Patients with suspected viral-associated, acute, undifferentiated febrile illness of Peru, and more recently (2005), in Madre de Dios, Peru. We performed phylogenetic analyses with VEEV from Bolivia, Ecuador and Peru and compared their relationships to strains from other parts of South America. We found that VEEV subtype ID Panama/Peru genotype is the predominant one circulating in Peru. We also demonstrated that VEEV subtype ID strains circulating in Ecuador belong to the Colombia/Venezuela genotype and VEEV from Madre de Dios, Peru and Cochabamba, Bolivia belong to a new ID genotype. In summary, we identified a new major lineage of enzootic VEEV subtype ID, information that could aid in the understanding of the emergence and evolution of VEEV in South America.

  9. Building Stronger State Energy Partnerships with the U.S. Department of Energy

    Energy Technology Data Exchange (ETDEWEB)

    Marks, Kate

    2011-09-30

    This final technical report details the results of total work efforts and progress made from October 2007 – September 2011 under the National Association of State Energy Officials (NASEO) cooperative agreement DE-FC26-07NT43264, Building Stronger State Energy Partnerships with the U.S. Department of Energy. Major topical project areas in this final report include work efforts in the following areas: Energy Assurance and Critical Infrastructure, State and Regional Technical Assistance, Regional Initiative, Regional Coordination and Technical Assistance, and International Activities in China. All required deliverables have been provided to the National Energy Technology Laboratory and DOE program officials.

  10. Chicken IgY Fc expressed by Eimeria mitis enhances the immunogenicity of E. mitis.

    Science.gov (United States)

    Qin, Mei; Tang, Xinming; Yin, Guangwen; Liu, Xianyong; Suo, Jingxia; Tao, Geru; Ei-Ashram, Saeed; Li, Yuan; Suo, Xun

    2016-03-21

    Eimeria species are obligate intracellular apicomplexan parasites, causing great economic losses in the poultry industry. Currently wild-and attenuated- type anticoccidial vaccines are used to control coccidiosis. However, their use in fast growing broilers is limited by vaccination side effects caused by medium and/or low immunogenic Eimeria spp. There is, therefore, a need for a vaccine with high immunogenicity for broilers. The avian yolk sac IgY Fc is the avian counterpart of the mammalian IgG Fc, which enhances immunogenicity of Fc-fusion proteins. Here, we developed a stable transgenic Eimeria mitis expressing IgY Fc (Emi.chFc) and investigated whether the avian IgY Fc fragment enhances the immunogenicity of E. mitis. Two-week-old broilers were immunized with either Emi.chFc or wild type Eimeria and challenged with wild type E. mitis to analyze the protective properties of transgenic Emi.chFc. Chickens immunized with Emi.chFc had significantly lower oocyst output, in comparison with PBS, mock control (transgenic E. mitis expressing HA1 from H9N2 avian influenza virus) and wildtype E. mitis immunized groups after challenge, indicating that IgY Fc enhanced the immunogenicity of E. mitis. Our findings suggest that IgY Fc-expressing Eimeria may be a better coccidiosis vaccine, and transgenic Eimeria expressing Fc-fused exogenous antigens may be used as a novel vaccine-delivery vehicle against a wide variety of pathogens.

  11. Tinjauan Desain Website Kemlu.Go.Id

    OpenAIRE

    Danu Widhyatmoko

    2013-01-01

    Review of kemlu.go.id website design is a research report on Kemlu.go.id website design. Kemlu.go.id website aims to be the information gateway of Ministry of Foreign Affairs, and also as guidelines of foreign politic policies of Republic of Indonesia. The review had been accomplished by using analytical method based on the "Nine Essential Principles for Good Web Design" developed by Collis Ta'eed (2007). At the end of the article, several recommendations in developing kemlu.go.id website are...

  12. Effects of altered FcγR binding on antibody pharmacokinetics in cynomolgus monkeys

    Science.gov (United States)

    Leabman, Maya K; Meng, Y Gloria; Kelley, Robert F; DeForge, Laura E; Cowan, Kyra J; Iyer, Suhasini

    2013-01-01

    Antibody interactions with Fcγ receptors (FcγRs), like FcγRIIIA, play a critical role in mediating antibody effector functions and thereby contribute significantly to the biologic and therapeutic activity of antibodies. Over the past decade, considerable work has been directed towards production of antibodies with altered binding affinity to FcγRs and evaluation of how the alterations modulate their therapeutic activity. This has been achieved by altering glycosylation status at N297 or by engineering modifications in the crystallizable fragment (Fc) region. While the effects of these modifications on biologic activity and efficacy have been examined, few studies have been conducted to understand their effect on antibody pharmacokinetics (PK). We present here a retrospective analysis in which we characterize the PK of three antibody variants with decreased FcγR binding affinity caused by amino acid substitutions in the Fc region (N297A, N297G, and L234A/L235A) and three antibody variants with increased FcγRIIIA binding affinity caused by afucosylation at N297, and compare their PK to corresponding wild type antibody PK in cynomolgus monkeys. For all antibodies, PK was examined at a dose that was known to be in the linear range. Since production of the N297A and N297G variants in Chinese hamster ovary cells results in aglycosylated antibodies that do not bind to FcγRs, we also examined the effect of expression of an aglycosylated antibody, without sequence change(s), in E. coli. All the variants demonstrated similar PK compared with that of the wild type antibodies, suggesting that, for the six antibodies presented here, altered FcγR binding affinity does not affect PK. PMID:24492343

  13. A intersubjetividade no contexto da família de pessoas com fibrose cística

    Directory of Open Access Journals (Sweden)

    Geisa Santos Luz

    2012-04-01

    Full Text Available Trata-se de uma investigação qualitativa, com aproximação fenomenológica, que objetivou desvelar os processos intersubjetivos no contexto da família de pessoas com Fibrose Cística (FC. Desenvolveu-se entrevista com 14 famílias com portadores de FC, cadastrados na Associação Paranaense de Assistência à Mucoviscidose (AAMPR, residentes nas regiões Norte e Noroeste do estado do Paraná (PR, Brasil. Das suas falas foram apreendidas unidades de significado, agrupadas em três categorias: Família, portador de FC e o outro; Aspectos religiosos na vivência da FC na família; Portador de FC na vida escolar, afetiva e profissional. Os resultados evidenciaram que a experiência das famílias compartilhada com o outro foi crucial para o enfrentamento da doença. Conhecer os processos intersubjetivos que perpassam o âmago da família de pessoas acometidas pela FC possibilita um novo modo de atuar em Enfermagem.

  14. Avaliação da remoção de cromo (III por materiais compósitos porosos adsorventes de PE-g-MA, fibra de coco e quitosana, usando planejamento experimental

    Directory of Open Access Journals (Sweden)

    Dilma Alves Costa

    2017-04-01

    Full Text Available RESUMO Os processos de adsorção podem ser empregados no tratamento de efluentes líquidos contendo metais pesados visando a reduzir os danos ambientais. Porém, o alto custo dos materiais adsorventes justifica a aplicação de adsorventes alternativos, como a fibra de coco (FC e a quitosana (Q. Assim, este trabalho teve como objetivo desenvolver compósitos porosos adsorventes a partir da mistura de polietileno graftizado com anidrido maleico/FC/Q/NaCl, como agente porogênico (PE-g-MA/FC/Q/NaCl, e avaliar estatisticamente a capacidade de adsorção do cromo (III em solução, com auxílio do software Statistica 5.0®. Os resultados mostraram que a eficiência do processo sofreu influência das dimensões da FC, do teor de Q e do pH da solução contendo Cr (III. A capacidade máxima de remoção de Cr (III por unidade de massa do compósito foi de 42,28 mg.g-1.

  15. Tinjauan Desain Website Kemlu.Go.Id

    Directory of Open Access Journals (Sweden)

    Danu Widhyatmoko

    2013-04-01

    Full Text Available Review of kemlu.go.id website design is a research report on Kemlu.go.id website design. Kemlu.go.id website aims to be the information gateway of Ministry of Foreign Affairs, and also as guidelines of foreign politic policies of Republic of Indonesia. The review had been accomplished by using analytical method based on the "Nine Essential Principles for Good Web Design" developed by Collis Ta'eed (2007. At the end of the article, several recommendations in developing kemlu.go.id website are presented to create better appearance.  

  16. Comercialização no ensino superior: é possível manter a idéia de bem público?

    Directory of Open Access Journals (Sweden)

    Dias Marco Antonio Rodrigues

    2003-01-01

    Full Text Available O autor, um dos promotores do debate no Brasil sobre o impacto na educação de medidas tomadas pela OMC, indaga se é possível manter a idéia de que o ensino superior é um bem público preconizada pela Conferência Mundial sobre o Ensino Superior, em Paris, em 1998. A comunidade acadêmica perdeu a oportunidade de reagir eficazmente, quando, em 1994, foi aprovado o Acordo Geral sobre Comércio e Serviços (AGCS. No entanto, a existência de provedores privados não torna um serviço comercial. Persistem as figuras da concessão, delegação ou autorização, mantidos, sob regulamentação, os princípios básicos que protegem os bens públicos. Na OMC, os países anglo-saxônicos agem de forma incoerente, mantendo fechadas as portas que pedem aos demais para abrir. O grande perigo, no momento, está na tentativa de se criar um sistema internacional de acreditação, sem participação da América Latina.

  17. Ebolavirus Glycoprotein Fc Fusion Protein Protects Guinea Pigs against Lethal Challenge

    Science.gov (United States)

    Konduru, Krishnamurthy; Shurtleff, Amy C.; Bradfute, Steven B.; Nakamura, Siham; Bavari, Sina; Kaplan, Gerardo

    2016-01-01

    Ebola virus (EBOV), a member of the Filoviridae that can cause severe hemorrhagic fever in humans and nonhuman primates, poses a significant threat to the public health. Currently, there are no licensed vaccines or therapeutics to prevent and treat EBOV infection. Several vaccines based on the EBOV glycoprotein (GP) are under development, including vectored, virus-like particles, and protein-based subunit vaccines. We previously demonstrated that a subunit vaccine containing the extracellular domain of the Ebola ebolavirus (EBOV) GP fused to the Fc fragment of human IgG1 (EBOVgp-Fc) protected mice against EBOV lethal challenge. Here, we show that the EBOVgp-Fc vaccine formulated with QS-21, alum, or polyinosinic-polycytidylic acid-poly-L-lysine carboxymethylcellulose (poly-ICLC) adjuvants induced strong humoral immune responses in guinea pigs. The vaccinated animals developed anti-GP total antibody titers of approximately 105−106 and neutralizing antibody titers of approximately 103 as assessed by a BSL-2 neutralization assay based on vesicular stomatitis virus (VSV) pseudotypes. The poly-ICLC formulated EBOVgp-Fc vaccine protected all the guinea pigs against EBOV lethal challenge performed under BSL-4 conditions whereas the same vaccine formulated with QS-21 or alum only induced partial protection. Vaccination with a mucin-deleted EBOVgp-Fc construct formulated with QS-21 adjuvant did not have a significant effect in anti-GP antibody levels and protection against EBOV lethal challenge compared to the full-length GP construct. The bulk of the humoral response induced by the EBOVgp-Fc vaccine was directed against epitopes outside the EBOV mucin region. Our findings indicate that different adjuvants can eliciting varying levels of protection against lethal EBOV challenge in guinea pigs vaccinated with EBOVgp-Fc, and suggest that levels of total anti-GP antibodies elicit by protein-based GP subunit vaccines do not correlate with protection. Our data further support

  18. Ebolavirus Glycoprotein Fc Fusion Protein Protects Guinea Pigs against Lethal Challenge.

    Science.gov (United States)

    Konduru, Krishnamurthy; Shurtleff, Amy C; Bradfute, Steven B; Nakamura, Siham; Bavari, Sina; Kaplan, Gerardo

    2016-01-01

    Ebola virus (EBOV), a member of the Filoviridae that can cause severe hemorrhagic fever in humans and nonhuman primates, poses a significant threat to the public health. Currently, there are no licensed vaccines or therapeutics to prevent and treat EBOV infection. Several vaccines based on the EBOV glycoprotein (GP) are under development, including vectored, virus-like particles, and protein-based subunit vaccines. We previously demonstrated that a subunit vaccine containing the extracellular domain of the Ebola ebolavirus (EBOV) GP fused to the Fc fragment of human IgG1 (EBOVgp-Fc) protected mice against EBOV lethal challenge. Here, we show that the EBOVgp-Fc vaccine formulated with QS-21, alum, or polyinosinic-polycytidylic acid-poly-L-lysine carboxymethylcellulose (poly-ICLC) adjuvants induced strong humoral immune responses in guinea pigs. The vaccinated animals developed anti-GP total antibody titers of approximately 105-106 and neutralizing antibody titers of approximately 103 as assessed by a BSL-2 neutralization assay based on vesicular stomatitis virus (VSV) pseudotypes. The poly-ICLC formulated EBOVgp-Fc vaccine protected all the guinea pigs against EBOV lethal challenge performed under BSL-4 conditions whereas the same vaccine formulated with QS-21 or alum only induced partial protection. Vaccination with a mucin-deleted EBOVgp-Fc construct formulated with QS-21 adjuvant did not have a significant effect in anti-GP antibody levels and protection against EBOV lethal challenge compared to the full-length GP construct. The bulk of the humoral response induced by the EBOVgp-Fc vaccine was directed against epitopes outside the EBOV mucin region. Our findings indicate that different adjuvants can eliciting varying levels of protection against lethal EBOV challenge in guinea pigs vaccinated with EBOVgp-Fc, and suggest that levels of total anti-GP antibodies elicit by protein-based GP subunit vaccines do not correlate with protection. Our data further support

  19. Ebolavirus Glycoprotein Fc Fusion Protein Protects Guinea Pigs against Lethal Challenge.

    Directory of Open Access Journals (Sweden)

    Krishnamurthy Konduru

    Full Text Available Ebola virus (EBOV, a member of the Filoviridae that can cause severe hemorrhagic fever in humans and nonhuman primates, poses a significant threat to the public health. Currently, there are no licensed vaccines or therapeutics to prevent and treat EBOV infection. Several vaccines based on the EBOV glycoprotein (GP are under development, including vectored, virus-like particles, and protein-based subunit vaccines. We previously demonstrated that a subunit vaccine containing the extracellular domain of the Ebola ebolavirus (EBOV GP fused to the Fc fragment of human IgG1 (EBOVgp-Fc protected mice against EBOV lethal challenge. Here, we show that the EBOVgp-Fc vaccine formulated with QS-21, alum, or polyinosinic-polycytidylic acid-poly-L-lysine carboxymethylcellulose (poly-ICLC adjuvants induced strong humoral immune responses in guinea pigs. The vaccinated animals developed anti-GP total antibody titers of approximately 105-106 and neutralizing antibody titers of approximately 103 as assessed by a BSL-2 neutralization assay based on vesicular stomatitis virus (VSV pseudotypes. The poly-ICLC formulated EBOVgp-Fc vaccine protected all the guinea pigs against EBOV lethal challenge performed under BSL-4 conditions whereas the same vaccine formulated with QS-21 or alum only induced partial protection. Vaccination with a mucin-deleted EBOVgp-Fc construct formulated with QS-21 adjuvant did not have a significant effect in anti-GP antibody levels and protection against EBOV lethal challenge compared to the full-length GP construct. The bulk of the humoral response induced by the EBOVgp-Fc vaccine was directed against epitopes outside the EBOV mucin region. Our findings indicate that different adjuvants can eliciting varying levels of protection against lethal EBOV challenge in guinea pigs vaccinated with EBOVgp-Fc, and suggest that levels of total anti-GP antibodies elicit by protein-based GP subunit vaccines do not correlate with protection. Our data

  20. Idékatalog Appetit på maden

    DEFF Research Database (Denmark)

    Jensen, Tenna; Jespersen, Astrid Pernille; Grønnow, Liv Cæcilie

    2015-01-01

    Idékataloget er en selvstændig publikation hørende til projekt Appetit på maden. Idékataloget er udviklet til brug i Københavns Kommune.......Idékataloget er en selvstændig publikation hørende til projekt Appetit på maden. Idékataloget er udviklet til brug i Københavns Kommune....

  1. A strategy for bacterial production of a soluble functional human neonatal Fc receptor

    DEFF Research Database (Denmark)

    Andersen, Jan Terje; Justesen, Sune; Berntzen, Gøril

    2008-01-01

    The major histocompatibility complex (MHC) class I related receptor, the neonatal Fc receptor (FcRn), rescues immunoglobulin G (IgG) and albumin from lysosomal degradation by recycling in endothelial cells. FcRn also contributes to passive immunity by mediating transport of IgG from mother to fetus...

  2. Alimentação de juvenis de carpa capim com dietas à base de farelos vegetais e forragem - doi: 10.4025/actascianimsci.v32i3.9052 Feeding grass carp juveniles with plant-protein diets and forage - doi: 10.4025/actascianimsci.v32i3.9052

    Directory of Open Access Journals (Sweden)

    Fernando Strohschein Maschke

    2010-09-01

    Full Text Available Para avaliar o potencial dos ingredientes de origem vegetal como substitutos da farinha de carne suína em dietas para Ctenopharyngodon idella Valenciennes, (1844 (carpa capim, 180 juvenis (15 por tanque foram criados durante 60 dias em sistema de recirculação de água. Foi avaliada a substituição da farinha de carne suína (FCS por farelo de canola (FC, farelo de girassol (FG e a mistura dos farelos de canola e girassol (FCG. As dietas também continham farelo de soja como fonte proteica. O consumo diário de forragem (1,24 a 2,11% do peso vivo não diferiu entre os tratamentos. Peso final, ganho em peso, taxa de crescimento específico e conversão alimentar aparente não diferiram estatisticamente entre as dietas. O rendimento de filé foi maior nos tratamentos FC e FCG, enquanto o índice digestivossomático foi maior nos tratamentos FG e FCG. Maior teor de gordura e menores teores de proteína no peixe inteiro e de cinzas no filé foram obtidos no tratamento FCG. Os filés dos tratamentos FCS e FCG apresentaram maior valor de luminosidade. Os peixes da dieta FCS apresentaram maiores valores de proteínas, triglicerídeos e colesterol total no soro. Conclui-se que os farelos de canola e girassol podem ser utilizados em dietas para recria da carpa capim.To evaluate the potential of plant-protein sources to replace porcine meat meal in diets for grass carp juveniles, 180 fish (15 per tank were reared for 60 days in a re-use water system. We evaluated the replacement of porcine meat meal (FCS for canola meal (FC, sunflower meal (FG or a mixture of canola and sunflower meal (FCG. The diets were also composed of soybean meal as a protein source. Daily forage intake ranged from 1.24 to 2.11% body weight and did not differ among treatments. Final weight, weight gain, specific growth rate and feed conversion rate did not differ statistically among diets. The fillet yield was higher in FC and FCG diets, while the digestive-somatic index was

  3. The metalloid arsenite induces nuclear export of Id3 possibly via binding to the N-terminal cysteine residues

    International Nuclear Information System (INIS)

    Kurooka, Hisanori; Sugai, Manabu; Mori, Kentaro; Yokota, Yoshifumi

    2013-01-01

    Highlights: •Sodium arsenite induces cytoplasmic accumulation of Id3. •Arsenite binds to closely spaced N-terminal cysteine residues of Id3. •N-terminal cysteines are essential for arsenite-induced nuclear export of Id3. •Nuclear export of Id3 counteracts its transcriptional repression activity. -- Abstract: Ids are versatile transcriptional repressors that regulate cell proliferation and differentiation, and appropriate subcellular localization of the Id proteins is important for their functions. We previously identified distinct functional nuclear export signals (NESs) in Id1 and Id2, but no active NES has been reported in Id3. In this study, we found that treatment with the stress-inducing metalloid arsenite led to the accumulation of GFP-tagged Id3 in the cytoplasm. Cytoplasmic accumulation was impaired by a mutation in the Id3 NES-like sequence resembling the Id1 NES, located at the end of the HLH domain. It was also blocked by co-treatment with the CRM1-specific nuclear export inhibitor leptomycin B (LMB), but not with the inhibitors for mitogen-activated protein kinases (MAPKs). Importantly, we showed that the closely spaced N-terminal cysteine residues of Id3 interacted with the arsenic derivative phenylarsine oxide (PAO) and were essential for the arsenite-induced cytoplasmic accumulation, suggesting that arsenite induces the CRM1-dependent nuclear export of Id3 via binding to the N-terminal cysteines. Finally, we demonstrated that Id3 significantly repressed arsenite-stimulated transcription of the immediate-early gene Egr-1 and that this repression activity was inversely correlated with the arsenite-induced nuclear export. Our results imply that Id3 may be involved in the biological action of arsenite

  4. Supervisory control system based on PC applied to substations automatization of and to regional operation centers of distribution networks; Sistema de control supervisorio basado en PC aplicado en automatizacion de subestaciones y centros de operacion regional de redes de distribucion

    Energy Technology Data Exchange (ETDEWEB)

    Picasso B, Cuitlahuac [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico); Astorga Q, Clemente [Luz y Fuerza del Centro (Mexico)

    2003-07-01

    In order to increase the services quality in the electrical energy, to improve the process of identification of energy losses, to increase the equipment efficiency, to count on more complete statistics of profiles of load consumptions, among other applications, the Compania de Luz y Fuerza del Centro (LyFC) carries out the modernization in automatization of substations and regional operation centers of distribution networks. The technological base to make these programs requires automating the operative schemes of the substation and distribution centers that supervise the events of the electrical process. In this article the main results of the development and integration of master stations based on PC, that were made in the Instituto de Investigaciones Electricas (IIE) and that have been integrated in the electrical company LyFC are presented. [Spanish] Con el proposito de incrementar la calidad de los servicios en la energia electrica, mejorar el proceso de identificacion de perdidas de energia, aumentar la eficiencia de los equipos, contar con estadisticas mas completas de perfiles de consumos de carga, entre otras aplicaciones, la Compania de Luz y Fuerza del Centro (LyFC) lleva a cabo la modernizacion en automatizacion de subestaciones y centros de operacion regional de redes electricas de distribucion. La base tecnologica para realizar estos programas, requiere de automatizar los esquemas operativos de la subestacion y centros de distribucion que supervisan los eventos del proceso electrico. En este articulo se presentan los principales resultados del desarrollo e integracion de estaciones maestras basadas en PC, que se realizaron en el Instituto de Investigaciones Electricas (IIE) y que se han integrado en la compania electrica LyFC.

  5. Biodesulfurization of dibenzothiophene in Escherichia coli is enhanced by expression of a Vibrio harveyi oxidoreductase gene.

    Science.gov (United States)

    Reichmuth, D S; Hittle, J L; Blanch, H W; Keasling, J D

    2000-01-05

    One possible alternative to current fuel hydrodesulfurization methods is the use of microorganisms to remove sulfur compounds. Biodesulfurization requires much milder processing conditions, gives higher specificity, and does not require molecular hydrogen. In the present work we have produced two compatible plasmids: pDSR3, which allows Escherichia coli to convert dibenzothiophene (DBT) to hydroxybiphenyl (HBP), and pDSR2, which produces a Vibrio harveyi flavin oxidoreductase. We show that the flavin oxidoreductase enhances the rate of DBT removal when co-expressed in vivo with the desulfurization enzymes. The plasmids pDSR2 and pDSR3 were co-expressed in growing cultures. The expression of oxidoreductase caused an increase in the rate of DBT removal but a decrease in the rate of HBP production. The maximum rate of DBT removal was 8 mg/h. g dry cell weight. Experiments were also conducted using resting cells with the addition of various carbon sources. It was found that the addition of glucose or glycerol to cultures with oxidoreductase expression produced the highest DBT removal rate (51 mg/h. g dry cell weight). The culture with acetate and no oxidoreductase expression had the highest level of HBP production. For all carbon sources, the DBT removal rate was faster and the HBP generation rate slower with the expression of the oxidoreductase. Analysis of desulfurization intermediates indicates that the last enzyme in the pathway may be limiting. Copyright 2000 John Wiley & Sons, Inc.

  6. Live visualization of genomic loci with BiFC-TALE.

    Science.gov (United States)

    Hu, Huan; Zhang, Hongmin; Wang, Sheng; Ding, Miao; An, Hui; Hou, Yingping; Yang, Xiaojing; Wei, Wensheng; Sun, Yujie; Tang, Chao

    2017-01-11

    Tracking the dynamics of genomic loci is important for understanding the mechanisms of fundamental intracellular processes. However, fluorescent labeling and imaging of such loci in live cells have been challenging. One of the major reasons is the low signal-to-background ratio (SBR) of images mainly caused by the background fluorescence from diffuse full-length fluorescent proteins (FPs) in the living nucleus, hampering the application of live cell genomic labeling methods. Here, combining bimolecular fluorescence complementation (BiFC) and transcription activator-like effector (TALE) technologies, we developed a novel method for labeling genomic loci (BiFC-TALE), which largely reduces the background fluorescence level. Using BiFC-TALE, we demonstrated a significantly improved SBR by imaging telomeres and centromeres in living cells in comparison with the methods using full-length FP.

  7. (Re)Programa, Rehabilitación Arquitectónica con criterios de sostenibilidad de un barrio en Andalucía

    OpenAIRE

    Blandón González, Begoña; Gómez de Terreros Guardiola, Pedro; Barrios Padura, Ángela; Molina Huelva, Marta; Mercader-Moyano, Pilar (Coordinador)

    2017-01-01

    Entre los años 2013 a 2015, miembros del grupo TEP 954 InFact trabajaron en el contrato I+D adjudicado por la Agencia de Obra Pública de la Junta de Andalucía, estudiando las necesidades de intervención en el parque edificado andaluz construido desde los años 40 con el objetivo de garantizar el “envejecimiento activo” y “en casa”. Se propone un nuevo modelo urbano que garantiza que las personas puedan permanecer en sus barrios hasta el final de sus días, desde proyectos cent...

  8. Estudio de la carga interna en pádel amateur mediante la frecuencia cardíaca

    Directory of Open Access Journals (Sweden)

    Jesús Díaz García

    2017-03-01

    Full Text Available Los objetivos de este estudio fueron evaluar el nivel de condición física de 8 sujetos amateur de pádel, definir su perfil energético de esfuerzo en juego real mediante registro de frecuencia cardíaca (FC, y proponer un conjunto de variables justificadas de esta, que permita analizar el perfil de carga interna en pádel. Mediante prueba de esfuerzo incremental máxima en cinta de correr se obtuvieron parámetros ergoespirométricos, respiratorios y sus equivalentes cardíacos, introducidos en el sistema de registro de la FC Polar Team. Los sujetos disputaron 7 partidos de entrenamiento de 1 hora de duración y 72-96 horas de separación entre ellos, obteniéndose como variables: consumo máximo de oxígeno (VO2 máx y porcentaje (% de VO2 máx en el umbral anaeróbico; en prueba de esfuerzo, FC máx., media y mín., y zonas de trabajo metabólicas (rangos de FC. Los resultados presentan VO2 máx de 51,15 ± 5,73 ml · kg–1 · min–1, FC máx. durante el juego de 154,75 ± 7,25 ppm, FC med de 130,0 ± 10,4 ppm para tiempo de juego y 89,75 % del tiempo de juego en zona de trabajo aeróbica. Como conclusión, el esfuerzo al que son sometidos durante el juego a nivel cardiorrespiratorio los jugadores amateur de pádel se basa casi exclusivamente en metabolismos aeróbicos. Además, las variables máx., mín. y media de FC para tiempos de juego y descanso y el establecimiento de zonas de trabajo de FC pueden aportarnos información importante sobre lo que ocurre en el juego a nivel cardiorrespiratorio.

  9. PRODUCCIÓN DE BIOMASA Y EXOPOLISACÁRIDOS DE Grifóla frondosa BAJO CULTIVO SUMERGIDO UTILIZANDO FUENTES DE CARBONO NO CONVENCIONALES

    OpenAIRE

    Zapata, Paula; Rojas, Diego; Fernández, Carlos; Ramírez, David; Restrepo, Gloria; Orjuela, Viviana; Arroyave, Marcela; Gómez, Tatiana; Atehortüa, Lucía

    2007-01-01

    Grifóla frondosa es un hongo Basidiomycete comestible y medicinal que produce polisacáridos tipo glucanos (β-1,6 y β-1,3) con actividad antitumoral e inmunomoduladora. Para el presente trabajo, el objetivo fue evaluar la incidencia de diferentes fuentes de carbono (FC) en la producción de biomasa y exopolisacári-dos (EPS), bajo condiciones de cultivo sumergido, utilizando un diseño estadístico factorial con dos factores: fuente de carbono (FC(1-7)) y medio (MB y MS). La máxima produ...

  10. Prophylactic anti-D preparations display variable decreases in Fc-fucosylation of anti-D.

    NARCIS (Netherlands)

    Kapur, R.; Della Valle, L.; Verhagen, O.J.; Hipgrave Ederveen, A.; Ligthart, P.; de Haas, M.; Kumpel, B.; Wuhrer, M.; van der Schoot, C.E.; Vidarsson, G.

    2015-01-01

    Background RhIG is obtained from hyperimmunized healthy anti-D donors (HIDs) boosted with D+ red blood cells (RBCs). One hypothesis for its mechanism of action is fast clearance of opsonized D+ RBCs through Fcγ receptor (FcγR)III. Levels of immunoglobulin (Ig)G Fc-fucosylation influence interactions

  11. Prophylactic anti-D preparations display variable decreases in Fc-fucosylation of anti-D

    NARCIS (Netherlands)

    Kapur, Rick; Della Valle, Luciana; Verhagen, Onno J. H. M.; Hipgrave Ederveen, Agnes; Ligthart, Peter; de Haas, Masja; Kumpel, Belinda; Wuhrer, Manfred; van der Schoot, C. Ellen; Vidarsson, Gestur

    2015-01-01

    RhIG is obtained from hyperimmunized healthy anti-D donors (HIDs) boosted with D+ red blood cells (RBCs). One hypothesis for its mechanism of action is fast clearance of opsonized D+ RBCs through Fcγ receptor (FcγR)III. Levels of immunoglobulin (Ig)G Fc-fucosylation influence interactions with

  12. Effects of microparticle size and Fc density on macrophage phagocytosis.

    Directory of Open Access Journals (Sweden)

    Patricia Pacheco

    Full Text Available Controlled induction of phagocytosis in macrophages offers the ability to therapeutically regulate the immune system as well as improve delivery of chemicals or biologicals for immune processing. Maximizing particle uptake by macrophages through Fc receptor-mediated phagocytosis could lead to new delivery mechanisms in drug or vaccine development. Fc ligand density and particle size were examined independently and in combination in order to optimize and tune the phagocytosis of opsonized microparticles. We show the internalization efficiency of small polystyrene particles (0.5 µm to 2 µm is significantly affected by changes in Fc ligand density, while particles greater than 2 µm show little correlation between internalization and Fc density. We found that while macrophages can efficiently phagocytose a large number of smaller particles, the total volume of phagocytosed particles is maximized through the non-specific uptake of larger microparticles. Therefore, larger microparticles may be more efficient at delivering a greater therapeutic payload to macrophages, but smaller opsonized microparticles can deliver bio-active substances to a greater percentage of the macrophage population. This study is the first to treat as independent variables the physical and biological properties of Fc density and microparticle size that initiate macrophage phagocytosis. Defining the physical and biological parameters that affect phagocytosis efficiency will lead to improved methods of microparticle delivery to macrophages.

  13. ¿Pueden las autoevaluaciones del alumnado ser la nota final de una asignatura?: el caso de biogerontología Is it possible to assume the autoevaluation of the students as the final mark of a subject?: the case of biogerontology

    Directory of Open Access Journals (Sweden)

    Dámaso Crespo

    2003-03-01

    Full Text Available Presentamos un estudio de la correlación entre las calificaciones objetivas (CO en una prueba tipo test de los estudiantes en la asignatura optativa Biogerontología con las autoevaluaciones subjetivas (AS que los alumnos se asignaron tras la realización de la prueba y la que consideraron se merecían con relación al esfuerzo (AE realizado para preparar dicha materia. El estadístico utilizado ha sido el coeficiente de correlación (rxy. Los resultados obtenidos muestran una alta correlación rxy = 0,77 cuando se comparan AS-AE. Sin embargo, rxy es muy bajo para los pares de valores CO-AS(0,05 y CO-AE (-0,07. Existen diferencias significativas (pThis study correlates the marks obtained in the test of the optative subject Biogerontology (CO, and those self-attributed by a group of students upon level of study (AS and dedication (AE to the subject. Statistical analysis used the correlation coefficient (rxy. The results showed a low correlation when CO-AS (0.05 and CO-AE (-0.07 marks were compared (p<0.05. A high value (0.77 was obtained when both subjective marks were compared (AS-AE. Our results well suggest that subjective marks should not be used as the final marks in this subject.

  14. Review of SR 97 performance assessment

    International Nuclear Information System (INIS)

    Glynn, P.D.

    2000-01-01

    This review has identified many technical problems in the SR 97 performance assessment. The general impression of this reviewer is that SKB has been disingenuous in its performance assessment effort. It has not cited important differences of opinion with its own views. Furthermore, there are many inconsistencies in the SR 97 report that all together leave the impression that there are many more uncertainties in the SR 97 performance assessment than SKB would perhaps care to admit. Additionally, despite SKB's statements to the contrary, many of the analyses conducted for the SR 97 performance assessment can be clearly shown not to have been based on 'conservative' assumptions. Finally, SKB has made little effort to consider possible coupling effects between their different scenarios in SR 97. This is a serious flaw in the SR 97 performance assessment. The comments in this review should not be taken to imply that the KBS-3 nuclear waste disposal method will not be able to meet the safety and radiation protection requirements which SKI and SSI have specified in recent years. Instead, my conclusion is simply that the SR 97 performance assessment of the KBS-3 method would have been more believable had it been based on a forthright and comprehensive discussion of facts, uncertainties and opinions, and on a more conservative choice of assumptions. As it stands, the SR 97 performance assessment is not very credible

  15. A de-identifier for medical discharge summaries.

    Science.gov (United States)

    Uzuner, Ozlem; Sibanda, Tawanda C; Luo, Yuan; Szolovits, Peter

    2008-01-01

    Clinical records contain significant medical information that can be useful to researchers in various disciplines. However, these records also contain personal health information (PHI) whose presence limits the use of the records outside of hospitals. The goal of de-identification is to remove all PHI from clinical records. This is a challenging task because many records contain foreign and misspelled PHI; they also contain PHI that are ambiguous with non-PHI. These complications are compounded by the linguistic characteristics of clinical records. For example, medical discharge summaries, which are studied in this paper, are characterized by fragmented, incomplete utterances and domain-specific language; they cannot be fully processed by tools designed for lay language. In this paper, we show that we can de-identify medical discharge summaries using a de-identifier, Stat De-id, based on support vector machines and local context (F-measure=97% on PHI). Our representation of local context aids de-identification even when PHI include out-of-vocabulary words and even when PHI are ambiguous with non-PHI within the same corpus. Comparison of Stat De-id with a rule-based approach shows that local context contributes more to de-identification than dictionaries combined with hand-tailored heuristics (F-measure=85%). Comparison with two well-known named entity recognition (NER) systems, SNoW (F-measure=94%) and IdentiFinder (F-measure=36%), on five representative corpora show that when the language of documents is fragmented, a system with a relatively thorough representation of local context can be a more effective de-identifier than systems that combine (relatively simpler) local context with global context. Comparison with a Conditional Random Field De-identifier (CRFD), which utilizes global context in addition to the local context of Stat De-id, confirms this finding (F-measure=88%) and establishes that strengthening the representation of local context may be more

  16. NRG1-Fc improves metabolic health via dual hepatic and central action.

    Science.gov (United States)

    Zhang, Peng; Kuang, Henry; He, Yanlin; Idiga, Sharon O; Li, Siming; Chen, Zhimin; Yang, Zhao; Cai, Xing; Zhang, Kezhong; Potthoff, Matthew J; Xu, Yong; Lin, Jiandie D

    2018-03-08

    Neuregulins (NRGs) are emerging as an important family of signaling ligands that regulate glucose and lipid homeostasis. NRG1 lowers blood glucose levels in obese mice, whereas the brown fat-enriched secreted factor NRG4 protects mice from high-fat diet-induced insulin resistance and hepatic steatosis. However, the therapeutic potential of NRGs remains elusive, given the poor plasma half-life of the native ligands. Here, we engineered a fusion protein using human NRG1 and the Fc domain of human IgG1 (NRG1-Fc) that exhibited extended half-life in circulation and improved potency in receptor signaling. We evaluated its efficacy in improving metabolic parameters and dissected the mechanisms of action. NRG1-Fc treatment triggered potent AKT activation in the liver, lowered blood glucose, improved insulin sensitivity, and suppressed food intake in obese mice. NRG1-Fc acted as a potent secretagogue for the metabolic hormone FGF21; however, the latter was largely dispensable for its metabolic effects. NRG1-Fc directly targeted the hypothalamic POMC neurons to promote membrane depolarization and increase firing rate. Together, NRG1-Fc exhibits improved pharmacokinetic properties and exerts metabolic benefits through dual inhibition of hepatic gluconeogenesis and caloric intake.

  17. Induction of functional Fc receptors in P388 leukemia cells. Requirement for multiple differentiation signals.

    Science.gov (United States)

    Cohen, D A; Stotelmyer, N L; Kaplan, A M

    1985-04-01

    The development of functional Fc receptors (FcR) during induced differentiation with the tumor promoter, phorbol myristate acetate (PMA), was studied in the murine tumor cell line, P388. PMA induced the appearance of FcR on the membranes of P388 cells as indicated by the binding of IgG-coated sheep red blood cells (IgG-SRBC). Concentrations of PMA as low as 1 ng/ml were sufficient to induce the expression of FcR as well as to inhibit cellular division and to induce adherence in the P388 tumor cell line; however, optimal FcR induction occurred at PMA concentrations of 10-100 ng/ml. Immunofluorescent analysis with heat-aggregated myeloma proteins indicated that PMA induced FcR which were capable of binding IgG2a and IgG2b immunoglobulins, but not IgG1. Adherence to a substratum was determined to be a second required signal for expression of FcR, since PMA induction of P388 tumor cells in teflon dishes failed to fully develop FcR and adherence of P388 cells to poly-L-lysine-coated culture dishes in the absence of PMA was insufficient for FcR expression. FcR which appeared after PMA induction were non-functional in the sense that membrane-bound IgG-SRBC were not ingested to any significant extent by the tumor cells. However, if FcR induction occurred in the presence conA-induced rat spleen cell culture supernatants, phagocytosis of membrane-bound erythrocytes occurred. These findings suggest that for the expression of FcR which are capable of particle internalization, at least three identifiable membrane-transmitted signals are required during differentiation.

  18. Organizative structure of the System for Integral Management of Archive Documents (SiGeID 1.0)

    OpenAIRE

    Irima Campillo Torres; Raudel J. Rosquete Martínez; Magalys Palomino Palomino; Dominica Legañoa Ferrá; Anysley Cano Inclán; Idalmis Cabrera Morales

    2012-01-01

    El nuevo contexto impone a las organizaciones la necesidad vital de disponer de adecuadas infraestructuras de comunicación, que les permitan conseguir un conocimiento real y suficiente del entorno. El presente artículo pretende mostrar la estructura organizativa del Sistema de Gestión Integral de Documentos de archivo SiGeID (1.0), como una herramienta informática que ayuda a las organizaciones empresariales al perfeccionamiento de la gestión de documentos. Dividido en tres módulos: Gestión y...

  19. TTI-621 (SIRPαFc): A CD47-Blocking Innate Immune Checkpoint Inhibitor with Broad Antitumor Activity and Minimal Erythrocyte Binding.

    Science.gov (United States)

    Petrova, Penka S; Viller, Natasja Nielsen; Wong, Mark; Pang, Xinli; Lin, Gloria H Y; Dodge, Karen; Chai, Vien; Chen, Hui; Lee, Vivian; House, Violetta; Vigo, Noel T; Jin, Debbie; Mutukura, Tapfuma; Charbonneau, Marilyse; Truong, Tran; Viau, Stephane; Johnson, Lisa D; Linderoth, Emma; Sievers, Eric L; Maleki Vareki, Saman; Figueredo, Rene; Pampillo, Macarena; Koropatnick, James; Trudel, Suzanne; Mbong, Nathan; Jin, Liqing; Wang, Jean C Y; Uger, Robert A

    2017-02-15

    Purpose: The ubiquitously expressed transmembrane glycoprotein CD47 delivers an anti-phagocytic (do not eat) signal by binding signal-regulatory protein α (SIRPα) on macrophages. CD47 is overexpressed in cancer cells and its expression is associated with poor clinical outcomes. TTI-621 (SIRPαFc) is a fully human recombinant fusion protein that blocks the CD47-SIRPα axis by binding to human CD47 and enhancing phagocytosis of malignant cells. Blockade of this inhibitory axis using TTI-621 has emerged as a promising therapeutic strategy to promote tumor cell eradication. Experimental Design: The ability of TTI-621 to promote macrophage-mediated phagocytosis of human tumor cells was assessed using both confocal microscopy and flow cytometry. In vivo antitumor efficacy was evaluated in xenograft and syngeneic models and the role of the Fc region in antitumor activity was evaluated using SIRPαFc constructs with different Fc tails. Results: TTI-621 enhanced macrophage-mediated phagocytosis of both hematologic and solid tumor cells, while sparing normal cells. In vivo , TTI-621 effectively controlled the growth of aggressive AML and B lymphoma xenografts and was efficacious in a syngeneic B lymphoma model. The IgG1 Fc tail of TTI-621 plays a critical role in its antitumor activity, presumably by engaging activating Fcγ receptors on macrophages. Finally, TTI-621 exhibits minimal binding to human erythrocytes, thereby differentiating it from CD47 blocking antibodies. Conclusions: These data indicate that TTI-621 is active across a broad range of human tumors. These results further establish CD47 as a critical regulator of innate immune surveillance and form the basis for clinical development of TTI-621 in multiple oncology indications. Clin Cancer Res; 23(4); 1068-79. ©2016 AACR . ©2016 American Association for Cancer Research.

  20. Implementacion de un agregador de noticias basado en Twitter : memoria final

    OpenAIRE

    Pérez Martín, Salvador; Herranz Esnaola, Leire

    2015-01-01

    Introducción Este trabajo de final de master (TFM) consiste en el análisis, el diseño y la implementación de un agregador de noticias utilizando la API de Twitter. La mo­tivación de este TFM viene dada por una necesidad de algunos usuarios de redes sociales de encontrar un sitio web donde estén en todas las noticias de actualidad según los intereses personales de cada uno. El problema viene dado por la falta de sitios webs donde la actualización de las noticias se haga de una man...

  1. Decisiones al final de la vida en México

    Directory of Open Access Journals (Sweden)

    Edith González Moreno

    2015-01-01

    Full Text Available El presente ensayo aborda el tema de las decisiones al final de la vida en México (incluyendo el tema de la muerte medi - camente asistida. 2 Las reflexiones parten de algunos indicadores nacionales de mortalidad en nuestro país, donde el fenómeno de muerte en hospitales está apenas siendo igualado al número de muertes que venían ocurriendo fuera de ellos. Por lo anterior y a diferencia de otros países, el foco de atención en las cuestiones relacionadas con el final de la vida no deberá centrarse exclusivamente en el ámbito hospitalario. También se presentan algunos argumentos internacionales, elementos de la legislación vigente, así como la influencia de los paternalismos médico y jurídico en México.

  2. La planificación tributaria como instrumento idóneo para maximizar los beneficios económicos: caso del subsector comercializadoras de la rana especie "catesbiana”

    OpenAIRE

    Torres Gallardo, Ana Lucía

    2016-01-01

    La presente investigación tiene como propósito aplicar la planificación tributaria como instrumento idóneo para maximizar el aprovechamiento de los beneficios e incentivos existentes en nuestro sistema tributario, aplicado al subsector ranicultor. El objetivo principal es proporcionar a los empresarios (principalmente pequeños y medianos) directrices para aprovechar los beneficios e incentivos que la ley establece, e incentivar de esta forma el emprendimiento y la asociación entre empresarios...

  3. IgG receptor FcγRIIB plays a key role in obesity-induced hypertension.

    Science.gov (United States)

    Sundgren, Nathan C; Vongpatanasin, Wanpen; Boggan, Brigid-Meghan D; Tanigaki, Keiji; Yuhanna, Ivan S; Chambliss, Ken L; Mineo, Chieko; Shaul, Philip W

    2015-02-01

    There is a well-recognized association between obesity, inflammation, and hypertension. Why obesity causes hypertension is poorly understood. We previously demonstrated using a C-reactive protein (CRP) transgenic mouse that CRP induces hypertension that is related to NO deficiency. Our prior work in cultured endothelial cells identified the Fcγ receptor IIB (FcγRIIB) as the receptor for CRP whereby it antagonizes endothelial NO synthase. Recognizing known associations between CRP and obesity and hypertension in humans, in the present study we tested the hypothesis that FcγRIIB plays a role in obesity-induced hypertension in mice. Using radiotelemetry, we first demonstrated that the hypertension observed in transgenic mouse-CRP is mediated by the receptor, indicating that FcγRIIB is capable of modifying blood pressure. We then discovered in a model of diet-induced obesity yielding equal adiposity in all study groups that whereas FcγRIIB(+/+) mice developed obesity-induced hypertension, FcγRIIB(-/-) mice were fully protected. Levels of CRP, the related pentraxin serum amyloid P component which is the CRP-equivalent in mice, and total IgG were unaltered by diet-induced obesity; FcγRIIB expression in endothelium was also unchanged. However, whereas IgG isolated from chow-fed mice had no effect, IgG from high-fat diet-fed mice inhibited endothelial NO synthase in cultured endothelial cells, and this was an FcγRIIB-dependent process. Thus, we have identified a novel role for FcγRIIB in the pathogenesis of obesity-induced hypertension, independent of processes regulating adiposity, and it may entail an IgG-induced attenuation of endothelial NO synthase function. Approaches targeting FcγRIIB may potentially offer new means to treat hypertension in obese individuals. © 2014 American Heart Association, Inc.

  4. IgG Receptor FcγRIIB Plays a Key Role in Obesity-Induced Hypertension

    Science.gov (United States)

    Sundgren, Nathan C.; Vongpatanasin, Wanpen; Boggan, Brigid-Meghan D.; Tanigaki, Keiji; Yuhanna, Ivan S.; Chambliss, Ken L.; Mineo, Chieko; Shaul, Philip W.

    2015-01-01

    There is a well-recognized association between obesity, inflammation, and hypertension. Why obesity causes hypertension is poorly understood. We previously demonstrated using a C-reactive protein (CRP) transgenic mouse that CRP induces hypertension that is related to NO deficiency. Our prior work in cultured endothelial cells identified the Fcγ receptor IIB (FcγRIIB) as the receptor for CRP whereby it antagonizes endothelial NO synthase. Recognizing known associations between CRP and obesity and hypertension in humans, in the present study we tested the hypothesis that FcγRIIB plays a role in obesity-induced hypertension in mice. Using radiotelemetry, we first demonstrated that the hypertension observed in transgenic mouse-CRP is mediated by the receptor, indicating that FcγRIIB is capable of modifying blood pressure. We then discovered in a model of diet-induced obesity yielding equal adiposity in all study groups that whereas FcγRIIB+/+ mice developed obesity-induced hypertension, FcγRIIB−/− mice were fully protected. Levels of CRP, the related pentraxin serum amyloid P component which is the CRP-equivalent in mice, and total IgG were unaltered by diet-induced obesity; FcγRIIB expression in endothelium was also unchanged. However, whereas IgG isolated from chow-fed mice had no effect, IgG from high-fat diet–fed mice inhibited endothelial NO synthase in cultured endothelial cells, and this was an FcγRIIB-dependent process. Thus, we have identified a novel role for FcγRIIB in the pathogenesis of obesity-induced hypertension, independent of processes regulating adiposity, and it may entail an IgG-induced attenuation of endothelial NO synthase function. Approaches targeting FcγRIIB may potentially offer new means to treat hypertension in obese individuals. PMID:25368023

  5. Facts about Infectious Diseases (ID)

    Science.gov (United States)

    ... an ID Specialist? Facts about ID Pocketcard Infectious diseases are caused by microscopic organisms that penetrate the body’s natural ... from diseases such as AIDS or treatment of diseases such as cancer, may allow ... of contaminated food or water, bites from vectors such as ticks or mosquitoes ...

  6. MEDICIÓN DEL POTENCIAL de investigación y desarrollo de las pymes a partir de su capacidad de gestión organizacional

    Directory of Open Access Journals (Sweden)

    Oscar Fernando Castellanos

    2006-07-01

    Full Text Available Este artículo analiza la relación existente entre la función de investigación y desarrollo (I+D y la gestión empresarial. La función de investigación y desarrollo (I+D en las pequeñas y medianas empresas (PyMES con frecuencia se interpreta como un gasto innecesario, debido a que la eficiencia de sus resultados y los retornos de la inversión no son muy relevantes. Por lo regular este fenómeno se relaciona en la literatura con la poca formación de los investigadores, las estructuras irregulares en los departamentos de I+D, el débil compromiso de la gerencia, la baja destinación de recursos, la desarticulación entre la investigación y las necesidades reales de la empresa, etc. Sin embargo, se puede plantear que entre el nivel de gestión organizacional y la capacidad de I+D hay una relación directa que pocas veces se ha estudiado, más aun en casos de empresas reales de países en desarrollo. Este estudió analiza si la gestión empresarial, la innovación y la cultura organizacional son los factores más incidentes en la eficiencia del I&D.

  7. Anti-influenza Hyperimmune Immunoglobulin Enhances Fc-functional Antibody Immunity during Human Influenza Infection.

    Science.gov (United States)

    Vanderven, Hillary A; Wragg, Kathleen; Ana-Sosa-Batiz, Fernanda; Kristensen, Anne B; Jegaskanda, Sinthujan; Wheatley, Adam K; Wentworth, Deborah; Wines, Bruce D; Hogarth, P Mark; Rockman, Steve; Kent, Stephen J

    2018-05-31

    New treatments for severe influenza are needed. Passive transfer of influenza-specific hyperimmune pooled immunoglobulin (Flu-IVIG) boosts neutralising antibody responses to past strains in influenza-infected subjects. The effect of Flu-IVIG on antibodies with Fc-mediated functions, which may target diverse influenza strains, is unclear. We studied the capacity of Flu-IVIG, relative to standard IVIG, to bind to Fc receptors and mediate antibody-dependent cellular cytotoxicity in vitro. The effect of Flu-IVIG infusion, compared to placebo infusion, was examined in serial plasma samples from 24 subjects with confirmed influenza infection in the INSIGHT FLU005 pilot study. Flu-IVIG contains higher concentrations of Fc-functional antibodies than IVIG against a diverse range of influenza hemagglutinins. Following infusion of Flu-IVIG into influenza-infected subjects, a transient increase in Fc-functional antibodies was present for 1-3 days against infecting and non-infecting strains of influenza. Flu-IVIG contains antibodies with Fc-mediated functions against influenza virus and passive transfer of Flu-IVIG increases anti-influenza Fc-functional antibodies in the plasma of influenza-infected subjects. Enhancement of Fc-functional antibodies to a diverse range of influenza strains suggests that Flu-IVIG infusion could prove useful in the context of novel influenza virus infections, when there may be minimal or no neutralising antibodies in the Flu-IVIG preparation.

  8. One ID Card for the Entire Campus.

    Science.gov (United States)

    Ridenour, David P.; Ferguson, Linda M.

    1986-01-01

    The implementation by Indiana State University of a machine-readable photo ID system for their food services prompted an investigation into the available alternatives and requirements for a more efficient all-University ID card system. The new ID system is described. (AUTHOR/MLW)

  9. Sistemas de Distribución de Clave Cuántica Basados en Codificación en Frecuencia

    OpenAIRE

    Ruiz Alba Gaya, Antonio

    2012-01-01

    Esta tesis se centra en el estudio de la aplicabilidad que dos disciplinas, la fotónica de microondas (MWP) y las comunicaciones cuánticas, pueden aportar en el desarrollo de nuevos sistemas de distribución de clave cuántica (QKD). El objetivo principal es el análisis y la validación experimental de sistemas QKD en la técnica de codificación en frecuencia (FC-QKD), por medio de distintas configuraciones de moduladores. Los sistemas FC-QKD permiten la incorporación de técnicas de multiplexació...

  10. Journal de la Recherche Scientifique de l'Université de Lomé - Vol ...

    African Journals Online (AJOL)

    Journal de la Recherche Scientifique de l'Universite de Lome. ... V.J. Mama, J Oloukoi, F.C. Biaou, R Tete, 231-247 ... Etat des lieux et profil de l'imagerie par resonance magnetique dans l'exploration du cancer de la prostate au Togo · EMAIL ...

  11. Id-1 and Id-2 genes and products as therapeutic targets for treatment of breast cancer and other types of carcinoma

    Science.gov (United States)

    Desprez, Pierre-Yves; Campisi, Judith

    2014-09-30

    A method for treatment and amelioration of breast, cervical, ovarian, endometrial, squamous cells, prostate cancer and melanoma in a patient comprising targeting Id-1 or Id-2 gene expression with a delivery vehicle comprising a product which modulates Id-1 or Id-2 expression.

  12. Evaluation of FcεRl-binding serum IgE in patients with ocular allergic diseases

    Directory of Open Access Journals (Sweden)

    Satoru Matsumoto

    1999-01-01

    Full Text Available We evaluated high-affinity receptor for IgE (FcεRI- binding serum IgE in patients with atopic keratoconjunctivitis (AKC; n=31 and with seasonal allergic conjunctivitis (SAC; n=13 by enzyme-linked immunosorbent assay (ELISA using a recombinant soluble form of the human FcεRIα ectodomain (soluble α. The quantities of FcεRI-binding IgE are compared with those of total IgE measured by a conventional sandwich ELISA. Both of the quantities of FcεRI-binding and total IgE in AKC were significantly larger than those in SAC (P<0.001. In contrast, the proportion of FcεRI- binding IgE (FcεRI-binding IgE/total IgE; % in SAC was significantly larger than that in AKC (P <0.001, although significant reverse correlation was observed between the proportion of FcεRI-binding IgE and total IgE in both AKC and SAC. Significantly, a higher proportion of FcεRI-binding IgE in SAC than that in AKC may reflect the differences in pathologic states of AKC and SAC that are caused by a disparity in immune responses in these diseases.

  13. Las Preocupaciones étnicas de las Elites Intelectuales Argentinas,1880-1940

    Directory of Open Access Journals (Sweden)

    Leonardo Senkman

    1994-12-01

    Full Text Available O autor passa em revista algumas das principais idéias representativas do pensamento da intelectualidade argentina, procurando demonstrar a ausência de nma doutrina coerente em torno da questuo da raça e como parte integrante do projeto de construção da nacionalidade. A análise se faz com base nas idéias de grupos distintas de intelectuais: positivistas, racionalistas católicos e liberais. A etnicidade é apresentada como uma das maneiras de se formular discursivamente as questões pendentes do processo de construção nacional onde a questão imigratória encontra-se dimensionada ao lado de outras como: a dos exilados espanhóis e dos imigrantes refugiados do nazismo. Na porte final analisa as ideias xenófobas e racistas do nacionalismo integrista antiimperialista, de índole mobilizadora e populista dos anos 30 e 40.

  14. Usefulness of FC-TRIPLEX Chagas/Leish IgG1 as confirmatory assay for non-negative results in blood bank screening of Chagas disease.

    Science.gov (United States)

    Campos, Fernanda Magalhães Freire; Repoles, Laura Cotta; de Araújo, Fernanda Fortes; Peruhype-Magalhães, Vanessa; Xavier, Marcelo Antônio Pascoal; Sabino, Ester Cerdeira; de Freitas Carneiro Proietti, Anna Bárbara; Andrade, Mariléia Chaves; Teixeira-Carvalho, Andréa; Martins-Filho, Olindo Assis; Gontijo, Célia Maria Ferreira

    2018-04-01

    A relevant issue in Chagas disease serological diagnosis regards the requirement of using several confirmatory methods to elucidate the status of non-negative results from blood bank screening. The development of a single reliable method may potentially contribute to distinguish true and false positive results. Our aim was to evaluate the performance of the multiplexed flow-cytometry anti-T. cruzi/Leishmania IgG1 serology/(FC-TRIPLEX Chagas/Leish IgG1) with three conventional confirmatory criteria (ELISA-EIA, Immunofluorescence assay-IIF and EIA/IIF consensus criterion) to define the final status of samples with actual/previous non-negative results during anti-T. cruzi ELISA-screening in blood banks. Apart from inconclusive results, the FC-TRIPLEX presented a weak agreement index with EIA, while a strong agreement was observed when either IIF or EIA/IIF consensus criteria were applied. Discriminant analysis and Spearman's correlation further corroborates the agreement scores. ROC curve analysis showed that FC-TRIPLEX performance indexes were higher when IIF and EIA/IIF consensus were used as a confirmatory criterion. Logistic regression analysis further demonstrated that the probability of FC-TRIPLEX to yield positive results was higher for inconclusive results from IIF and EIA/IIF consensus. Machine learning tools illustrated the high level of categorical agreement between FC-TRIPLEX versus IIF or EIA/IIF consensus. Together, these findings demonstrated the usefulness of FC-TRIPLEX as a tool to elucidate the status of non-negative results in blood bank screening of Chagas disease. Copyright © 2018. Published by Elsevier B.V.

  15. Fcγ receptor expression on splenic macrophages in adult immune thrombocytopenia

    NARCIS (Netherlands)

    Audia, S; Santegoets, K; Laarhoven, A G; Vidarsson, G; Facy, O; Ortega-Deballon, P; Samson, M; Janikashvili, N; Saas, P; Bonnotte, B; Radstake, T R

    2017-01-01

    Splenic macrophages play a key role in immune thrombocytopenia (ITP) pathogenesis by clearing opsonized platelets. Fcγ receptors (FcγR) participate in this phenomenon, but their expression on splenic macrophages and their modulation by treatment have scarcely been studied in human ITP. We aimed to

  16. Human IgG lacking effector functions demonstrate lower FcRn-binding and reduced transplacental transport.

    Science.gov (United States)

    Stapleton, Nigel M; Armstrong-Fisher, Sylvia S; Andersen, Jan Terje; van der Schoot, C Ellen; Porter, Charlene; Page, Kenneth R; Falconer, Donald; de Haas, Masja; Williamson, Lorna M; Clark, Michael R; Vidarsson, Gestur; Armour, Kathryn L

    2018-03-01

    We have previously generated human IgG1 antibodies that were engineered for reduced binding to the classical Fcγ receptors (FcγRI-III) and C1q, thereby eliminating their destructive effector functions (constant region G1Δnab). In their potential use as blocking agents, favorable binding to the neonatal Fc receptor (FcRn) is important to preserve the long half-life typical of IgG. An ability to cross the placenta, which is also mediated, at least in part, by FcRn is desirable in some indications, such as feto-maternal alloimmune disorders. Here, we show that G1Δnab mutants retain pH-dependent binding to human FcRn but that the amino acid alterations reduce the affinity of the IgG1:FcRn interaction by 2.0-fold and 1.6-fold for the two antibodies investigated. The transport of the modified G1Δnab mutants across monolayers of human cell lines expressing FcRn was approximately 75% of the wild-type, except that no difference was observed with human umbilical vein endothelial cells. G1Δnab mutation also reduced transport in an ex vivo placenta model. In conclusion, we demonstrate that, although the G1Δnab mutations are away from the FcRn-binding site, they have long-distance effects, modulating FcRn binding and transcellular transport. Our findings have implications for the design of therapeutic human IgG with tailored effector functions. Copyright © 2018 The Authors. Published by Elsevier Ltd.. All rights reserved.

  17. El liderazgo directivo y el desempeño docente en las instituciones educativas del distrito de Barranco de la UGEL 07 - 2014

    OpenAIRE

    Rodríguez Antón, Walter Gilberto

    2015-01-01

    Presentaremos una síntesis referente al Liderazgo Directivo y el Desempeño Docente en las instituciones educativas del distrito de Barranco de la UGEL 07. El objetivo principal de la investigación es plasmar la relación que existe entre las variables: liderazgo directivo y el desempeño docente. Utilizando una muestra que ha servido en esta investigación que es de tipo básica con un diseño no experimental, de corte transversal y de un nivel descriptivo correlacional. La muest...

  18. Karikaturist Aivar Juhanson näitab KuKu klubis oma töid

    Index Scriptorium Estoniae

    2009-01-01

    Loit Jõekalda kureeritud joonistustriennaali raames eksponeerivad oma töid Ave Avalo, Kärt Hammer, Eero Ijavoinen, Kristjan Kittus, Mari-Liis Laanemaa, Triinu Lille, Valli Lember-Bogatkina jpt. kunstnikud. Ajalehe "Eesti Ekspress" karikaturisti Aivar Juhansoni tööde näitus Tallinnas KuKu klubis

  19. Neutron Reflection Study of Surface Adsorption of Fc, Fab, and the Whole mAb.

    Science.gov (United States)

    Li, Zongyi; Li, Ruiheng; Smith, Charles; Pan, Fang; Campana, Mario; Webster, John R P; van der Walle, Christopher F; Uddin, Shahid; Bishop, Steve M; Narwal, Rojaramani; Warwicker, Jim; Lu, Jian Ren

    2017-07-12

    Characterizing the influence of fragment crystallization (Fc) and antigen-binding fragment (Fab) on monoclonal antibody (mAb) adsorption at the air/water interface is an important step to understanding liquid mAb drug product stability during manufacture, shipping, and storage. Here, neutron reflection is used to study the air/water adsorption of a mAb and its Fc and Fab fragments. By varying the isotopic contrast, the adsorbed amount, thickness, orientation, and immersion of the adsorbed layers could be determined unambiguously. While Fc adsorption reached saturation within the hour, its surface adsorbed amount showed little variation with bulk concentration. In contrast, Fab adsorption was slower and the adsorbed amount was concentration dependent. The much higher Fc adsorption, as compared to Fab, was linked to its lower surface charge. Time and concentration dependence of mAb adsorption was dominated by Fab behavior, although both Fab and Fc behaviors contributed to the amount of mAb adsorbed. Changing the pH from 5.5 to 8.8 did not much perturb the adsorbed amount of Fc, Fab, or mAb. However, a small decrease in adsorption was observed for the Fc over pH 8-8.8 and vice versa for the Fab and mAb, consistent with a dominant Fab behavior. As bulk concentration increased from 5 to 50 ppm, the thicknesses of the Fc layers were almost constant at 40 Å, while Fab and mAb layers increased from 45 to 50 Å. These results imply that the adsorbed mAb, Fc, and Fab all retained their globular structures and were oriented with their short axial lengths perpendicular to the interface.

  20. Calidad de las plantaciones de teca en la Peninsula de Nicoya, Rosta Rica

    Directory of Open Access Journals (Sweden)

    Odir Rojas

    2000-01-01

    Full Text Available Se evalu6 25 proyectos de reforestaci6n de Tectona grandis (6 afios de edad promedio en IDs cantones de Nicoya y Hojancha, Peninsula de Ni- coya, Guanacaste. Las plantaciones registraron un area real plantada promedio de 62.3% y de esta, un 80% estaba cubierta con arboles. Entre IDs principales defectos observados esm la presencia de ramas en reiteraci6n (26%, fustes inclinados (27% y fustes con torceduras leves (30%. Las bi- furcaciones no representan un problema importan- te (1.4% ni los problemas fitosanitarios severos (6.7%. EI promedio de las plantaciones registr6 843 trozas comerciales/ha y 254 arboles/ha de ca- lidad 1 y 2. Sin embargo, un 52% de IDs proyectos evaluados no registraron, al menDs, 250 indivi- duos/ha de calidad I y 2. Un 16% de IDs proyec- tos registraron mas de 1200 trozas comerciales/ha de calidad I y 2. EI incremento media anual del volumen comercial (dap con corteza >10 cm de arboles de calidad I y 2 rue de 6.76 m3/ha/afio y un 16% de los proyectos super610s 12 m3/ha/afio. EI indice de calidad general (ICG de plantaciones de teca sin raleos, en la Peninsula de Nicoya rue de 3.04. Se concluye que las plantaciones de teca en esta regi6n del pais presentan una calidad pro- media aceptable (un 48% de los proyectos registr6

  1. The Antibody Response of Pregnant Cameroonian Women to VAR2CSA ID1-ID2a, a Small Recombinant Protein Containing the CSA-Binding Site

    Science.gov (United States)

    Babakhanyan, Anna; Leke, Rose G. F.; Salanti, Ali; Bobbili, Naveen; Gwanmesia, Philomina; Leke, Robert J. I.; Quakyi, Isabella A.; Chen, John J.; Taylor, Diane Wallace

    2014-01-01

    In pregnant women, Plasmodium falciparum-infected erythrocytes expressing the VAR2CSA antigen bind to chondroitin sulfate A in the placenta causing placental malaria. The binding site of VAR2CSA is present in the ID1-ID2a region. This study sought to determine if pregnant Cameroonian women naturally acquire antibodies to ID1-ID2a and if antibodies to ID1-ID2a correlate with absence of placental malaria at delivery. Antibody levels to full-length VAR2CSA and ID1-ID2a were measured in plasma samples from 745 pregnant Cameroonian women, 144 Cameroonian men, and 66 US subjects. IgM levels and IgG avidity to ID1-ID2a were also determined. As expected, antibodies to ID1-ID2a were absent in US controls. Although pregnant Cameroonian women developed increasing levels of antibodies to full-length VAR2CSA during pregnancy, no increase in either IgM or IgG to ID1-ID2a was observed. Surprisingly, no differences in antibody levels to ID1-ID2a were detected between Cameroonian men and pregnant women. For example, in rural settings only 8–9% of males had antibodies to full-length VAR2CSA, but 90–96% had antibodies to ID1-ID2a. In addition, no significant difference in the avidity of IgG to ID1-ID2a was found between pregnant women and Cameroonian men, and no correlation between antibody levels at delivery and absence of placental malaria was found. Thus, the response to ID1-ID2a was not pregnancy specific, but predominantly against cross-reactivity epitopes, which may have been induced by other PfEMP1 antigens, malarial antigens, or microbes. Currently, ID1-ID2a is a leading vaccine candidate, since it binds to the CSA with the same affinity as the full-length molecule and elicits binding-inhibitory antibodies in animals. Further studies are needed to determine if the presence of naturally acquired cross-reactive antibodies in women living in malaria endemic countries will alter the response to ID1-ID2a following vaccination with ID1-ID2a. PMID:24505415

  2. The antibody response of pregnant Cameroonian women to VAR2CSA ID1-ID2a, a small recombinant protein containing the CSA-binding site.

    Directory of Open Access Journals (Sweden)

    Anna Babakhanyan

    Full Text Available In pregnant women, Plasmodium falciparum-infected erythrocytes expressing the VAR2CSA antigen bind to chondroitin sulfate A in the placenta causing placental malaria. The binding site of VAR2CSA is present in the ID1-ID2a region. This study sought to determine if pregnant Cameroonian women naturally acquire antibodies to ID1-ID2a and if antibodies to ID1-ID2a correlate with absence of placental malaria at delivery. Antibody levels to full-length VAR2CSA and ID1-ID2a were measured in plasma samples from 745 pregnant Cameroonian women, 144 Cameroonian men, and 66 US subjects. IgM levels and IgG avidity to ID1-ID2a were also determined. As expected, antibodies to ID1-ID2a were absent in US controls. Although pregnant Cameroonian women developed increasing levels of antibodies to full-length VAR2CSA during pregnancy, no increase in either IgM or IgG to ID1-ID2a was observed. Surprisingly, no differences in antibody levels to ID1-ID2a were detected between Cameroonian men and pregnant women. For example, in rural settings only 8-9% of males had antibodies to full-length VAR2CSA, but 90-96% had antibodies to ID1-ID2a. In addition, no significant difference in the avidity of IgG to ID1-ID2a was found between pregnant women and Cameroonian men, and no correlation between antibody levels at delivery and absence of placental malaria was found. Thus, the response to ID1-ID2a was not pregnancy specific, but predominantly against cross-reactivity epitopes, which may have been induced by other PfEMP1 antigens, malarial antigens, or microbes. Currently, ID1-ID2a is a leading vaccine candidate, since it binds to the CSA with the same affinity as the full-length molecule and elicits binding-inhibitory antibodies in animals. Further studies are needed to determine if the presence of naturally acquired cross-reactive antibodies in women living in malaria endemic countries will alter the response to ID1-ID2a following vaccination with ID1-ID2a.

  3. High Affinity IgE-Fc Receptor alpha and gamma Subunit Interactions

    International Nuclear Information System (INIS)

    Rashid, A.; Housden, J. E. M.; Sabban, S.; Helm, B.

    2014-01-01

    Objective: To explore the relationships between the subunits (alpha, beta and gamma) of the high affinity IgE receptor (Fc and RI) and its ability to mediate transmembrane signaling. Study Design: Experimental study. Place and Duration of Study: Department of Molecular Biology and Biotechnology, University of Sheffield, UK, from 2008 to 2009. Methodology: The approach employed was to create a chimera (human alpha-gamma-gamma) using the extracellular (EC) domain of the human high affinity IgE receptor. The alpha subunit (huFc and RIalpha) of IgE receptor was spliced onto the rodent gamma TM and cytoplasmic domain (CD). This was transfected into the Rat Basophilic Leukemia cell line in order to assess the possibility of selectively activating cells transfected with this single pass construct for antigen induced mediator release. Results: The RBLs cell lines transfected with the huFc and RIalpha/gamma/gamma cDNA constructs were assessed for the cell surface expression of the huFc and RIalpha subunit and the response to the antigenic stimulus by looking for degranulation and intracellular Ca2+ mobilisation. The results obtained showed the absence of huFc and RIalpha subunit expression on the surface of transfected cells as seen by flowcytometric studies, beta-hexosaminidase assays and intracellular calcium mobilisation studies. Conclusion: In the present study the grounds for non-expression of huFc and RIalpha/gamma/gamma cDNA remains elusive but may be due to the fact that the human-rodent chimeric receptors are assembled differently than the endogenous rodent receptors as seen in study in which COS 7 cells were transfected with human/rat chimeric complexes. (author)

  4. Evaluation of ID-PaGIA syphilis antibody test.

    Science.gov (United States)

    Naaber, Paul; Makoid, Ene; Aus, Anneli; Loivukene, Krista; Poder, Airi

    2009-01-01

    Laboratory diagnosis of syphilis is usually accomplished by serology. There are currently a large number of different commercial treponemal tests available that vary in format, sensitivity and specificity. To evaluate the ID-PaGIA Syphilis Antibody Test as an alternative to other specific treponemal tests for primary screening or confirmation of diagnosis. Serum samples from healthy adults (n = 100) were used for detection of specificity of ID-PaGIA. To evaluate sensitivity of ID-PaGIA serum samples (n = 101) from patients with confirmed or suspected syphilis were tested for syphilis antibodies with FTA-Abs IgM, ID-PaGIA, ELISA IgM and TPHA tests. No false-positive results were found with ID-PaGIA. Sensitivity of various treponemal tests was the following: FTA-Abs IgM: 95.5%, ID-PaGIA and ELISA IgM: 94%, and TPHA 75%. The positive and negative predictive values of ID-PaGIA were 100 and 89.5%, respectively. Compared with other treponemal tests ID-PaGIA has excellent sensitivity and specificity.

  5. Diferenças clínicas observadas em pacientes com dengue causadas por diferentes sorotipos na epidemia de 2001/2002, ocorrida no município do Rio de Janeiro Clinical differences observed in patients with dengue caused by different serotypes in the epidemic of 2001/2002, occurred in Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Maíla Naves Pereira Passos

    2004-08-01

    Full Text Available O objetivo deste estudo foi avaliar as diferenças clínicas e epidemiológicas das infecções causadas pelos distintos sorotipos do vírus do dengue na epidemia 2001-2002 no município do Rio de Janeiro. Foram analisados 362 casos com isolamento viral, sendo 62 do sorotipo 1,62 do sorotipo 2, e 238 do sorotipo 3. Estes casos foram notificados ao Sistema de Informação de Agravos de Notificação (SINAN de janeiro/2001 até junho/2002. Os indivíduos infectados com o sorotipo 3 tiveram uma chance 6,07 vezes maior de apresentar choque em relação aos indivíduos com o sorotipo 2 (OR=6,07; IC:1,10-43,97. A chance de apresentar dor abdominal foi 3,06 maior nos infectados pelo sorotipo 3 do que naqueles por sorotipo 1 (OR=3,06; IC:0,99-9,66. Nos infectados com o sorotipo 3, a chance de ocorrer exantema foi 3,61 vezes maior que naqueles com o sorotipo 1 (OR=3,61; IC:1,16-11,51 e 3,55 vezes maior que aqueles com o sorotipo 2 (OR=3,55; IC:1,28-9,97. Este estudo mostra que indivíduos acometidos pelo sorotipo 3 apresentaram dengue com maior gravidade.The authors evaluated clinical and epidemiological differences among the serotypes of dengue in Rio de Janeiro's 2001-2002 outbreak of the disease. Out of 362 cases that had viral isolation samples, notified by the Information System for Notification Diseases (SINAN, from January/2001 to June/2002, 62 were caused by serotype 1,62 by serotype 2 and 238 by serotype 3. In comparison with serotype 2, an individual infected by serotype 3 had a 6.07 times higher chance (OR = 6.07; CI: 1.10-43.97 of presenting shock and a 3.55 times higher chance (OR = 3.55; CI: 1.28-9.97 of developing exanthema. When compared to serotype 1, serotype 3 had a 3.06 times higher chance (OR = 3.06; CI: 0.99-9.66 of causing abdominal pain and a 3.61 times higher chance of exanthema (OR = 3.61; CI: 1.16-11.51. It was found that individuals infected by serotype 3 of the virus presented signs indicating a more severe disease.

  6. Development of a 14-inch ID High-Pressure Hybrid Riser for SBOP Drilling Développement d’un riser hybride 14”ID haute pression pour le forage SBOP

    Directory of Open Access Journals (Sweden)

    Persent E.

    2009-11-01

    Full Text Available This paper discusses the development of a 14-inch ID high-pressure hybrid riser (10 000 psi for surface BOP drilling in ultra-deep water (10 000 ft. The high-pressure hybrid riser system is obtained by adapting and combining two existing technologies, previously developed by the IFP for other applications: – the Clip connector, a double breech-block type connector to provide a quick and safe connection for riser joints; – hybrid pipe technology, a steel pipe hoop-wound with tapes of carbon fibers impregnated with polyamide thermoplastic resin. IFP has developed a new 14-inch ID HP Clip connector for the hybrid riser application. The connector is capable of withstanding a 2.8 million pound tension and a 10 000 psi operating pressure. In addition, a 16-inch nominal OD hybrid riser pipe has been designed to replace the steel riser pipe with a thinnerwalled hoop-wound steel pipe. The significant weight savings that can be achieved with the hybrid riser pipe make it possible to design an effective riser architecture to withstand the high pressure and deep water requirements. Pursuant to design studies, a 14-inch ID prototype assembly consisting of two hybrid riser pipe sections with a high-pressure Clip connector was manufactured. A test program, including burst and collapse tests as well as cyclic fatigue testing, was formulated and carried out to qualify the performance of the Clip connector and hybrid riser pipe system. Completion of hybrid pipe additional fatigue testing and realization of a scale-one field testing of the hybrid riser are considered as the next steps of the project. To date, the main test results (burst, collapse, fatigue resistance confirm that the Clip connector and the hybrid pipe technologies are well suited for ultra-deep sea drilling with a surface BOP. However, the fatigue resistance of hybrid riser pipes still needs to be better characterized. Cet article présente le développement d’un riser hybride 14”ID haute

  7. Incorporation of FcRn-mediated disposition model to describe the population pharmacokinetics of therapeutic monoclonal IgG antibody in clinical patients.

    Science.gov (United States)

    Ng, Chee M

    2016-03-01

    The two-compartment linear model used to describe the population pharmacokinetics (PK) of many therapeutic monoclonal antibodies (TMAbs) offered little biological insight to antibody disposition in humans. The purpose of this study is to develop a semi-mechanistic FcRn-mediated IgG disposition model to describe the population PK of TMAbs in clinical patients. A standard two-compartment linear PK model from a previously published population PK model of pertuzumab was used to simulate intensive PK data of 100 subjects for model development. Two different semi-mechanistic FcRn-mediated IgG disposition models were developed and First Order Conditional Estimation (FOCE) with the interaction method in NONMEM was used to obtain the final model estimates. The performances of these models were then compared with the two-compartment linear PK model used to simulate the data for model development. A semi-mechanistic FcRn-mediated IgG disposition model consisting of a peripheral tissue compartment and FcRn-containing endosomes in the central compartment best describes the simulated pertuzumab population PK data. This developed semi-mechanistic population PK model had the same number of model parameters, produced very similar concentration-time profiles but provided additional biological insight to the FcRn-mediated IgG disposition in human subjects compared with the standard linear two-compartment linear PK model. This first reported semi-mechanistic model may serve as an important model framework for developing future population PK models of TMAbs in clinical patients. Copyright © 2015 John Wiley & Sons, Ltd.

  8. Efecto sobre la reacción de oxígeno de la forma y la microestructura del contacto electrodo-electrolito de electrodos a difusión interna en Celdas de Combustible de Óxido Sólido (SOFC

    Directory of Open Access Journals (Sweden)

    Jiménez, R.

    1999-12-01

    Full Text Available In this work we have studied the elemental electrode shape and electrode - electrolyte contact microstructure influence of Internal diffusion (ID gas electrode in solid oxide fuel cells (SOFC. First the influence over the electrolyte effective resistance is studied. Then the influence of the shape of the elemental contact grain of ID electrode is also studied. Finally the influence of the electrode - electrolyte contact microstructure in the electrode response for a pure diffuse control is modelled. From the obtained results, conclusions on the contact microstructure and electrode shape influence over the oxygen reaction of this kind of gas electrodes are commented.

    En este trabajo, se estudia la influencia de la forma del electrodo elemental y la microestructura del contacto electrodo-electrolito, del electrodo de gas a difusión interna en celdas de combustible de óxido sólido (SOFC. Se determina la influencia de la microestructura del contacto electrodo electrolito sobre la resistencia efectiva del electrolito, la influencia de la forma del contacto de un grano elemental de un electrodo poroso suponiendo que sea aproximadamente una semiesfera sobre la reacción del electrodo y finalmente la influencia de la microestructura del contacto electrodo - electrolito en la respuesta a un control difusivo puro del electrodo. De los resultados obtenidos se pueden extraer conclusiones sobre la influencia de la microestructura del contacto y forma del electrodo en la reacción de oxígeno en este tipo de electrodos de gas.

  9. VULNERACIONES DE LA DIGNIDAD HUMANA AL FINAL DE LA VIDA

    OpenAIRE

    ROBERTO GERMÁN ZURRIARÁIN

    2017-01-01

    La muerte es constitutiva a la naturaleza humana y por ello tiene que acontecer de forma natural. Pero hay dos realidades que, principalmente, la falsifican: la eutanasia y la obstinación terapéutica. Dos opciones erróneas que no aceptan la realidad humana de la muerte (la primera adelantándola y la otra retrasándola). Desde el punto de vista filosófico y ético ambas son rechazadas, porque atentan contra la dignidad humana al final de la vida. Aparte de estas, en este artículo también se rech...

  10. Fcγ receptor-mediated inflammation inhibits axon regeneration.

    Directory of Open Access Journals (Sweden)

    Gang Zhang

    Full Text Available Anti-glycan/ganglioside antibodies are the most common immune effectors found in patients with Guillain-Barré Syndrome, which is a peripheral autoimmune neuropathy. We previously reported that disease-relevant anti-glycan autoantibodies inhibited axon regeneration, which echo the clinical association of these antibodies and poor recovery in Guillain-Barré Syndrome. However, the specific molecular and cellular elements involved in this antibody-mediated inhibition of axon regeneration are not previously defined. This study examined the role of Fcγ receptors and macrophages in the antibody-mediated inhibition of axon regeneration. A well characterized antibody passive transfer sciatic nerve crush and transplant models were used to study the anti-ganglioside antibody-mediated inhibition of axon regeneration in wild type and various mutant and transgenic mice with altered expression of specific Fcγ receptors and macrophage/microglia populations. Outcome measures included behavior, electrophysiology, morphometry, immunocytochemistry, quantitative real-time PCR, and western blotting. We demonstrate that the presence of autoantibodies, directed against neuronal/axonal cell surface gangliosides, in the injured mammalian peripheral nerves switch the proregenerative inflammatory environment to growth inhibitory milieu by engaging specific activating Fcγ receptors on recruited monocyte-derived macrophages to cause severe inhibition of axon regeneration. Our data demonstrate that the antibody orchestrated Fcγ receptor-mediated switch in inflammation is one mechanism underlying inhibition of axon regeneration. These findings have clinical implications for nerve repair and recovery in antibody-mediated immune neuropathies. Our results add to the complexity of axon regeneration in injured peripheral and central nervous systems as adverse effects of B cells and autoantibodies on neural injury and repair are increasingly recognized.

  11. Gestión del conocimiento en docentes y desarrollo organizacional en Instituciones Educativas de la Red 09, UGEL 07 de Chorrillos, 2015

    OpenAIRE

    Estrella Félix, Mónica Edith

    2016-01-01

    La presente investigación tuvo como objetivo general determinar de qué manera hay una relación entre la Gestión del Conocimiento en docentes y desarrollo organizacional en Instituciones Educativas de la red 09, UGEL 07 de Chorrillos, 2015, la población es de 296 docentes y la muestra considerada es de 167 docentes en los cuales se ha empleado las variables: Gestión del Conocimiento y Desarrollo Organizacional. El método empleado en la investigación fue el hipotético deductivo, ...

  12. Reproduction of the FC/DFC units in nucleoli.

    Science.gov (United States)

    Smirnov, Evgeny; Hornáček, Matúš; Kováčik, Lubomír; Mazel, Tomáš; Schröfel, Adam; Svidenská, Silvie; Skalníková, Magdalena; Bartová, Eva; Cmarko, Dušan; Raška, Ivan

    2016-04-25

    The essential structural components of the nucleoli, Fibrillar Centers (FC) and Dense Fibrillar Components (DFC), together compose FC/DFC units, loci of rDNA transcription and early RNA processing. In the present study we followed cell cycle related changes of these units in 2 human sarcoma derived cell lines with stable expression of RFP-PCNA (the sliding clamp protein) and GFP-RPA43 (a subunit of RNA polymerase I, pol I) or GFP-fibrillarin. Correlative light and electron microscopy analysis showed that the pol I and fibrillarin positive nucleolar beads correspond to individual FC/DFC units. In vivo observations showed that at early S phase, when transcriptionally active ribosomal genes were replicated, the number of the units in each cell increased by 60-80%. During that period the units transiently lost pol I, but not fibrillarin. Then, until the end of interphase, number of the units did not change, and their duplication was completed only after the cell division, by mid G1 phase. This peculiar mode of reproduction suggests that a considerable subset of ribosomal genes remain transcriptionally silent from mid S phase to mitosis, but become again active in the postmitotic daughter cells.

  13. A soluble form of the high affinity IgE receptor, Fc-epsilon-RI, circulates in human serum.

    Directory of Open Access Journals (Sweden)

    Eleonora Dehlink

    Full Text Available Soluble IgE receptors are potential in vivo modulators of IgE-mediated immune responses and are thus important for our basic understanding of allergic responses. We here characterize a novel soluble version of the IgE-binding alpha-chain of Fc-epsilon-RI (sFcεRI, the high affinity receptor for IgE. sFcεRI immunoprecipitates as a protein of ∼40 kDa and contains an intact IgE-binding site. In human serum, sFcεRI is found as a soluble free IgE receptor as well as a complex with IgE. Using a newly established ELISA, we show that serum sFcεRI levels correlate with serum IgE in patients with elevated IgE. We also show that serum of individuals with normal IgE levels can be found to contain high levels of sFcεRI. After IgE-antigen-mediated crosslinking of surface FcεRI, we detect sFcεRI in the exosome-depleted, soluble fraction of cell culture supernatants. We further show that sFcεRI can block binding of IgE to FcεRI expressed at the cell surface. In summary, we here describe the alpha-chain of FcεRI as a circulating soluble IgE receptor isoform in human serum.

  14. Fcγ1 fragment of IgG1 as a powerful affinity tag in recombinant Fc-fusion proteins: immunological, biochemical and therapeutic properties.

    Science.gov (United States)

    Soleimanpour, Saman; Hassannia, Tahereh; Motiee, Mahdieh; Amini, Abbas Ali; Rezaee, S A R

    2017-05-01

    Affinity tags are vital tools for the production of high-throughput recombinant proteins. Several affinity tags, such as the hexahistidine tag, maltose-binding protein, streptavidin-binding peptide tag, calmodulin-binding peptide, c-Myc tag, glutathione S-transferase and FLAG tag, have been introduced for recombinant protein production. The fragment crystallizable (Fc) domain of the IgG1 antibody is one of the useful affinity tags that can facilitate detection, purification and localization of proteins and can improve the immunogenicity, modulatory effects, physicochemical and pharmaceutical properties of proteins. Fcγ recombinant forms a group of recombinant proteins called Fc-fusion proteins (FFPs). FFPs are widely used in drug discovery, drug delivery, vaccine design and experimental research on receptor-ligand interactions. These fusion proteins have become successful alternatives to monoclonal antibodies for drug developments. In this review, the physicochemical, biochemical, immunological, pharmaceutical and therapeutic properties of recombinant FFPs were discussed as a new generation of bioengineering strategies.

  15. Generation of high-affinity, internalizing anti-FGFR2 single-chain variable antibody fragment fused with Fc for targeting gastrointestinal cancers.

    Science.gov (United States)

    Borek, Aleksandra; Sokolowska-Wedzina, Aleksandra; Chodaczek, Grzegorz; Otlewski, Jacek

    2018-01-01

    Fibroblast growth factor receptors (FGFRs) are promising targets for antibody-based cancer therapies, as their substantial overexpression has been found in various tumor cells. Aberrant activation of FGF receptor 2 (FGFR2) signaling through overexpression of FGFR2 and/or its ligands, mutations, or receptor amplification has been reported in multiple cancer types, including gastric, colorectal, endometrial, ovarian, breast and lung cancer. In this paper, we describe application of the phage display technology to produce a panel of high affinity single chain variable antibody fragments (scFvs) against the extracellular ligand-binding domain of FGFR2 (ECD_FGFR2). The binders were selected from the human single chain variable fragment scFv phage display libraries Tomlinson I + J and showed high specificity and binding affinity towards human FGFR2 with nanomolar KD values. To improve the affinity of the best binder selected, scFvF7, we reformatted it to a bivalent diabody format, or fused it with the Fc region (scFvF7-Fc). The scFvF7-Fc antibody construct presented the highest affinity for FGFR2, with a KD of 0.76 nM, and was selectively internalized into cancer cells overexpressing FGFR2, Snu-16 and NCI-H716. Finally, we prepared a conjugate of scFvF7-Fc with the cytotoxic drug monomethyl-auristatin E (MMAE) and evaluated its cytotoxicity. The conjugate delivered MMAE selectively to FGFR2-positive tumor cells. These results indicate that scFvF7-Fc-vcMMAE is a highly potent molecule for the treatment of cancers with FGFR2 overexpression.

  16. Effect of trastuzumab interchain disulfide bond cleavage on Fcγ receptor binding and antibody-dependent tumour cell phagocytosis.

    Science.gov (United States)

    Suzuki, Mami; Yamanoi, Ayaka; Machino, Yusuke; Ootsubo, Michiko; Izawa, Ken-ichi; Kohroki, Junya; Masuho, Yasuhiko

    2016-01-01

    The Fc domain of human IgG1 binds to Fcγ receptors (FcγRs) to induce effector functions such as phagocytosis. There are four interchain disulfide bonds between the H and L chains. In this study, the disulfide bonds within the IgG1 trastuzumab (TRA), which is specific for HER2, were cleaved by mild S-sulfonation or by mild reduction followed by S-alkylation with three different reagents. The cleavage did not change the binding activities of TRA to HER2-bearing SK-BR-3 cells. The binding activities of TRA to FcγRIIA and FcγRIIB were greatly enhanced by modification with mild reduction and S-alkylation with ICH2CONH2 or N-(4-aminophenyl) maleimide, while the binding activities of TRA to FcγRI and FcγRIIIA were decreased by any of the four modifications. However, the interchain disulfide bond cleavage by the different modifications did not change the antibody-dependent cell-mediated phagocytosis (ADCP) of SK-BR-3 cells by activated THP-1 cells. The order of FcγR expression levels on the THP-1 cells was FcγRII > FcγRI > FcγRIII and ADCP was inhibited by blocking antibodies against FcγRI and FcγRII. These results imply that the effect of the interchain disulfide bond cleavage on FcγRs binding and ADCP is dependent on modifications of the cysteine residues and the FcγR isotypes. © The Authors 2015. Published by Oxford University Press on behalf of the Japanese Biochemical Society. All rights reserved.

  17. Contribution of PIP-5 kinase Iα to raft-based FcγRIIA signaling

    International Nuclear Information System (INIS)

    Szymanska, Ewelina; Korzeniowski, Marek; Raynal, Patrick; Sobota, Andrzej; Kwiatkowska, Katarzyna

    2009-01-01

    Receptor FcγIIA (FcγRIIA) associates with plasma membrane rafts upon activation to trigger signaling cascades leading to actin polymerization. We examined whether compartmentalization of PI(4,5)P 2 and PI(4,5)P 2 -synthesizing PIP5-kinase Iα to rafts contributes to FcγRIIA signaling. A fraction of PIP5-kinase Iα was detected in raft-originating detergent-resistant membranes (DRM) isolated from U937 monocytes and other cells. The DRM of U937 monocytes contained also a major fraction of PI(4,5)P 2 . PIP5-kinase Iα bound PI(4,5)P 2 , and depletion of the lipid displaced PIP5-kinase Iα from the DRM. Activation of FcγRIIA in BHK transfectants led to recruitment of the kinase to the plasma membrane and enrichment of DRM in PI(4,5)P 2 . Immunofluorescence studies revealed that in resting cells the kinase was associated with the plasma membrane, cytoplasmic vesicles and the nucleus. After FcγRIIA activation, PIP5-kinase Iα and PI(4,5)P 2 co-localized transiently with the activated receptor at distinct cellular locations. Immunoelectron microscopy studies revealed that PIP5-kinase Iα and PI(4,5)P 2 were present at the edges of electron-dense assemblies containing activated FcγRIIA in their core. The data suggest that activation of FcγRIIA leads to membrane rafts coalescing into signaling platforms containing PIP5-kinase Iα and PI(4,5)P 2

  18. Analisis y estudio del contenido de humedad final de la madera

    Directory of Open Access Journals (Sweden)

    Eduardo Gómez Ihmaidan

    2006-07-01

    Full Text Available La finalidad de este trabajo es proporcionar e interactuar con la  información referente al  proceso de secado industrial de Pino Radiata, tomando como variable el contenido de humedad final de la madera, en términos generales esta información será útil para negociar y tomar decisiones frente a  clientes que demandan por productos con ciertas especificaciones técnicas, cuantificando además los costos en que se incurre por estar fuera de los parámetros solicitados. La primera parte de este trabajo consistió en la recolección de datos del contenido de humedad final de los principales productos de Aserraderos Arauco S.A., los que fueron tomados manualmente por personal de la empresa con equipos xilohigrómetros de marca Wagner L612 y medidores automatizados en línea Brookhuis.  Con estos datos, el histograma fue la herramienta gráfica que permitió el ajuste de curvas de las distribuciones de probabilidad de cada producto utilizando el software @Risk  4.5, con esta información se procedió a buscar las funciones de probabilidad acumulada respectivas, y además aproximaciones matemáticas que permitieran el cálculo de éstas para conocer la probabilidad de estar entre un mínimo y un máximo de contenido de humedad. Para evaluar la variabilidad y tendencia central del contenido de humedad se procedió a calcular mediante los índices de la capacidad de procesos Cp y Cpk en qué medida el proceso de secado es capaz de cumplir con las especificaciones solicitadas por el cliente, debido a que los datos no presentaban un comportamiento normal fue necesario investigar y encontrar el cálculo de estos índices de capacidad para este caso. Otro aspecto importante considerado en este trabajo fue la incorporación de la función de Costo de Calidad del Dr. Taguchi en la cuál se evalúa monetáriamente todos los costos en que se incurre cuando el producto no satisface las especificaciones del cliente, ya sea productos demasiado h

  19. Identificação de alunos em risco de apresentarem dislexia: um estudo sobre a utilização da monitorização da fluência de leitura num contexto escolar

    Directory of Open Access Journals (Sweden)

    Rosa Filipa Ferreira de Mendonça

    2014-03-01

    Full Text Available A finalidade deste estudo foi descrever o uso da monitorização com base no currículo (MBC - fluência, na identificação de alunos em risco de apresentarem dislexia. Participaram 146 alunos do 3º ano do 1º Ciclo do Ensino Básico dum agrupamento de escolas do concelho de Braga, Portugal, que foram monitorizados em dois momentos ao longo do ano letivo. Foram considerados alunos em risco, aqueles cujo resultado se encontrava abaixo ou no percentil 20. Os resultados permitiram concluir que: 1 A prova de MBC mostrou ser econômica, fácil e rápida de aplicar, de cotar e bem aceita pelos professores e alunos; 2 Em média, a prestação dos alunos na primeira aplicação foi de 85,21 (DP = 28,41 palavras corretas por minuto (pcpm, na segunda aplicação (final do ano letivo foi de 97,46 (DP = 30,07 pcpm; 3 O crescimento semanal foi de 0,49 (DP=0,38 pcpm; 4 Encontram-se em risco de apresentarem dislexia, após a segunda aplicação 11 rapazes e 18 raparigas; 5 A diferença de resultados entre turmas é estatisticamente significativa; 6 No final do ano letivo em duas turmas mais de 30% dos alunos estão em risco de apresentarem dislexia, tendo em conta o valor do risco da amostra; 7 70,55% dos participantes não atingiram o objetivo das 110 pcpm estipulado pelo Ministério da Educação para aquele ano de escolaridade; 8 O valor do Alfa de Cronbach para a primeira aplicação foi de 0,981 e para a segunda aplicação foi de 0,978.

  20. Hubungan Polimorfisme Gen FcγRIIA dengan Densitas P. falciparum dan Efikasi Dihidroartemisinin-Piperakuin

    Directory of Open Access Journals (Sweden)

    Sylvia Sance Marantina

    2016-06-01

    Full Text Available Dimorfisme FcγRlla memiliki keterkaitan dengan kemampuan inang dalam mengeliminasi parasit malaria sehingga perlu dilakukan penelitian untuk mengetahui polimorfisme alel FcγRlla dari populasi di daerah endemis malaria di Indonesia agar dapat diketahui peran imunitas dalam mengeliminasi parasit malaria. Sebanyak 120 sampel dried blood spot (DBS malaria falsifarum yang diperoleh dari studi efikasi obat DHP di lima wilayah di Indonesia dianalisis dengan polymerase chain reaction (PCR dan sekuensing untuk melihat varian alel FcγRIIa-131 serta hubungannya dengan densitas parasit dan efikasi dihidroartemisinin-piperakuin. Analisis gen FcγRIIa menunjukkan bahwa genotip RH memiliki frekuensi paling tinggi (50,8% dibandingkan RR (17,5% dan HH (31,7%. Alel R131 gen FcγRIIa menunjukkan efek protektif terhadap high density parasitemia/HDP (>5000 parasit/μL; odds ratio [OR]= 0,133, 95% confidence interval [CI]= 0,053–0,334, p< 0,001 dan berhubungan dengan keberadaan gametosit yang lebih lama pada inang (>72 jam; relative risk [RR]= 1,571, 95% confidence interval [CI]= 1,005–2,456, p= 0,090. Kata Kunci: malaria falsiparum, dihidroartemisinin-piperakuin, K13, FcγRIIa, efikasi obat Polymorphism of Human FcγRIIa and Its Association with P. falciparum Density and Efficacy of Dihydroartemisinin- Piperaquine Abstract FcγRlla dimorphism has been related to the ability of the host to eliminate malaria parasite so it is necessary to investigate the allele polymorphism FcγRlla of population in malaria-endemic areas in Indonesia in order to know the role of immunity in eliminating malaria parasite. A total of 120 samples of Dried Blood Spot (DBS falciparum malaria acquired from DHP drug efficacy studies in 5 regions in Indonesia were analyzed by Polymerase Chain Reaction (PCR and sequencing, to look at variants of FcγRIIa-131 allele and its Association with Parasite DensityandEfficacy ofDihydroartemisinin- Piperaquine. The FcγRIIa gene analysis indicated

  1. Preparation and Characterization of FC Films Coated on PET Substrates by RF Magnetron Sputtering

    Directory of Open Access Journals (Sweden)

    Huang Mei-lin

    2018-01-01

    Full Text Available Fluorocarbon (FC films were prepared on polyethylene terephthalate (PET plates and PET fabrics respectively by a radiofrequency (RF magnetron sputtering technique using polytetrafluoroethylene (PTFE as a target. Scanning electron microscope and X-ray photoelectron spectroscopy were used to investigate the morphology, structure and composition of the obtained FC films. The hydrophobicity and uvioresistant properties of the FC film coated fabric were studied. The results show that the FC films were successfully deposited on the PET substrates by a RF magnetron sputtering. The deposited films are made up of four components -CF3, -CF2-, CF- and -C-. The proportions of the four components and surface morphologies of the deposited films vary with the sputtering conditions. Compared with the original fabric samples, the hydrophobicity of the FC film coated fabrics is quite good and improved significantly.

  2. Investigating the Interaction between the Neonatal Fc Receptor and Monoclonal Antibody Variants by Hydrogen/Deuterium Exchange Mass Spectrometry

    DEFF Research Database (Denmark)

    Jensen, Pernille Foged; Larraillet, Vincent; Schlothauer, Tilman

    2015-01-01

    The recycling of immunoglobulins by the neonatal Fc receptor (FcRn) is of crucial importance in the maintenance of antibody levels in plasma and is responsible for the long half-lives of endogenous and recombinant monoclonal antibodies. From a therapeutic point of view there is great interest...... in understanding and modulating the IgG-FcRn interaction to optimize antibody pharmacokinetics and ultimately improve efficacy and safety. Here we studied the interaction between a full-length human IgG1 and human FcRn via hydrogen/deuterium exchange mass spectrometry and targeted electron transfer dissociation...... to map sites perturbed by binding on both partners of the IgG-FcRn complex. Several regions in the antibody Fc region and the FcRn were protected from exchange upon complex formation, in good agreement with previous crystallographic studies of FcRn in complex with the Fc fragment. Interestingly, we found...

  3. OpenID Connect as a security service in cloud-based medical imaging systems.

    Science.gov (United States)

    Ma, Weina; Sartipi, Kamran; Sharghigoorabi, Hassan; Koff, David; Bak, Peter

    2016-04-01

    The evolution of cloud computing is driving the next generation of medical imaging systems. However, privacy and security concerns have been consistently regarded as the major obstacles for adoption of cloud computing by healthcare domains. OpenID Connect, combining OpenID and OAuth together, is an emerging representational state transfer-based federated identity solution. It is one of the most adopted open standards to potentially become the de facto standard for securing cloud computing and mobile applications, which is also regarded as "Kerberos of cloud." We introduce OpenID Connect as an authentication and authorization service in cloud-based diagnostic imaging (DI) systems, and propose enhancements that allow for incorporating this technology within distributed enterprise environments. The objective of this study is to offer solutions for secure sharing of medical images among diagnostic imaging repository (DI-r) and heterogeneous picture archiving and communication systems (PACS) as well as Web-based and mobile clients in the cloud ecosystem. The main objective is to use OpenID Connect open-source single sign-on and authorization service and in a user-centric manner, while deploying DI-r and PACS to private or community clouds should provide equivalent security levels to traditional computing model.

  4. Imaging and measuring the biophysical properties of Fc gamma receptors on single macrophages using atomic force microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Li, Mi [State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Liu, Lianqing, E-mail: lqliu@sia.cn [State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016 (China); Xi, Ning [Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong (China); Wang, Yuechao [State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016 (China); Xiao, Xiubin [Department of Lymphoma, Affiliated Hospital of Military Medical Academy of Sciences, Beijing 100071 (China); Zhang, Weijing, E-mail: zhangwj3072@163.com [Department of Lymphoma, Affiliated Hospital of Military Medical Academy of Sciences, Beijing 100071 (China)

    2013-09-06

    Highlights: •Nanoscale cellular ultra-structures of macrophages were observed. •The binding affinities of FcγRs were measured directly on macrophages. •The nanoscale distributions of FcγRs were mapped on macrophages. -- Abstract: Fc gamma receptors (FcγR), widely expressed on effector cells (e.g., NK cells, macrophages), play an important role in clinical cancer immunotherapy. The binding of FcγRs to the Fc portions of antibodies that are attached to the target cells can activate the antibody-dependent cell-mediated cytotoxicity (ADCC) killing mechanism which leads to the lysis of target cells. In this work, we used atomic force microscopy (AFM) to observe the cellular ultra-structures and measure the biophysical properties (affinity and distribution) of FcγRs on single macrophages in aqueous environments. AFM imaging was used to obtain the topographies of macrophages, revealing the nanoscale cellular fine structures. For molecular interaction recognition, antibody molecules were attached onto AFM tips via a heterobifunctional polyethylene glycol (PEG) crosslinker. With AFM single-molecule force spectroscopy, the binding affinities of FcγRs were quantitatively measured on single macrophages. Adhesion force mapping method was used to localize the FcγRs, revealing the nanoscale distribution of FcγRs on local areas of macrophages. The experimental results can improve our understanding of FcγRs on macrophages; the established approach will facilitate further research on physiological activities involved in antibody-based immunotherapy.

  5. Análisis de la respuesta cardiaca de árbitros de fútbol en competición: estudio de caso.

    Directory of Open Access Journals (Sweden)

    Daniel Castillo Alvira

    2015-05-01

    Full Text Available Los objetivos de este estudio fueron, por un lado, examinar la respuesta cardiaca de un árbitro de fútbol tanto durante un test de campo incremental como durante dos partidos en un torneo nacional de categoría cadete, y por otro lado, determinar las zonas de intensidad del árbitro durante los partidos atendiendo a su FCmax individual. Un árbitro de fútbol de categoría nacional fue equipado con un pulsómetro (Polar Electro Oy, Kempele, Finlandia y su FC fue monitorizada durante la realización del Yo-Yo de recuperación intermitente nivel 1 (YYIR1 y durante dos partidos de un Torneo de Fútbol de categoría cadete. Las zonas de intensidad se establecieron atendiendo a la clasificación de Edwards (1993. La FCmax obtenida en el YYIR1 y en los partidos fue de 178 ppm y 161 ppm, respectivamente. Durante los partidos la FCmed registrada fue de 127 ± 1,03 ppm que corresponde a un 71,3% de la FCmax obtenida en el YYIR1. La distribución de la frecuencia cardiaca atendiendo a las zonas establecidas es la siguiente: 10 ± 1,95% (zona 1, 32 ± 1,65% (zona 2, 38 ± 5,14% (zona 3, 19 ± 4,31% (zona 4 y 1 ± 0,53% (zona 5. Los resultados obtenidos nos muestran que la FC más alta alcanzada en partidos de categoría cadete es inferior a la alcanzada en el YYIR1. Además, se observa que la carga interna, medida mediante FC obtenida en partidos, es inferior a la reportada en otros estudios con árbitros en partidos de categoría sénior.

  6. Unusual ZFC and FC magnetic behavior in thin Co multi-layered structure

    Energy Technology Data Exchange (ETDEWEB)

    Ben-Dor, Oren; Yochelis, Shira [Department of Applied Physics, Center of Nanoscience and Nanotechnology, Hebrew University, Jerusalem 91904 (Israel); Felner, Israel [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); Paltiel, Yossi [Department of Applied Physics, Center of Nanoscience and Nanotechnology, Hebrew University, Jerusalem 91904 (Israel)

    2017-04-15

    The observation of unusual magnetic phenomena in a Ni -based magnetic memory device ( O. Ben-Dor et al., 2013) encouraged us to conduct a systematic research on Co based multi-layered structure which contains a α-helix L polyalanine (AHPA-L) organic compound. The constant Co thickness is 7 nm and AHPA-L was also replaced by non-chiral 1-Decanethiol organic molecules. Both organic compounds were chemisorbed on gold by a thiol group. The dc magnetic field (H) was applied parallel and perpendicular to the surface layers. The perpendicular direction is the easy magnetization axis and along this orientation only, the zero-field-cooled (ZFC) plots exhibit a pronounced peak around 55–58 K. This peak is suppressed in the second ZFC and field-cooled (FC) runs performed shortly after the virgin ZFC one. Thus, around the peak position ZFC>FC a phenomenon seldom observed. This peak reappears after measuring the same material six months later. This behavior appears in layers with the non-chiral 1-Decanethiol and it is very similar to that obtained in sulfur doped amorphous carbon. The peak origin and the peculiar ZFC>FC case are qualitatively explained. - Highlights: • FC curve crosses ZFC curve in a 7 nm Co and thiol-based organic molecules multi-layered structure. • The ZFC>FC phenomena occurs for H perpendicular along the easy axis. • This phenomenon disappears in the second FC-ZFC run performed shortly after. • The unusual behavior reappears after six months.

  7. Cuadernos Hispanoamericanos: idéias políticas numa revista de cultura Cuadernos Hispanoamericanos: political ideas in a cultural review

    Directory of Open Access Journals (Sweden)

    Maria Helena Capelato

    2005-07-01

    Full Text Available Cuadernos Hispanoamericanos, criado em 1948, apresentouse como uma revista de cultura destinada a aproximar espanhóis e hispanoamericanos em torno de uma proposta de identidade comum. Está em circulação até hoje, mas apresenta características diversas de sua primeira fase. Entre 1948 e 1955, a revista assumiu uma função política específica cujo objetivo era obter apoio de setores hispanoamericanos para vencer o bloqueio externo contra o regime franquista, que ficou isolado no plano internacional a partir do fim da Segunda Guerra, por sua identificação com o nazifascismo. A Espanha só foi integrada à ONU em 1955, após intensa luta para vencer esse ostracismo. O objetivo central desta reflexão é entender o significado do projeto político que definiu as coordenadas da revista, nessa época, procurando explicitar os significados do ideal de hispanidad, em torno do qual se deu ampla discuss ão. A revista permitiu a circulação de idéias relacionadas ao tema, idéias estas que foram se transformando ao longo do período, em função de alterações de conjuntura interna e externa.Cuadernos hispanoamericanos, created in 1948, presented itself as periodical of culture intended to draw Spaniards and Latin Americans closer together toward a common identity. It is still in circulation today, but has different features from its initial phase. From 1948 to 1955, the periodical took on a specific political function, aiming at obtaining the support of Hispanic American sectors to overcome the external blockade against the Franco regime, which became isolated internationally after the end of the Second World War because of its identification with Nazism-Fascism. Spain was only integrated into the UN in 1955, after an intense struggle to overcome this ostracism. The central objective of this study is to understand the meaning of the political project that defined the coordinates of the periodical during this period, by attempting to make

  8. Importance of the development of a data base on final uses of energy in the domestic sector; Importancia del desarrollo de una base de datos de usos finales de energia en el sector domestico

    Energy Technology Data Exchange (ETDEWEB)

    Sanchez Ramos, Itha [Instituto de Investigaciones Electricas, Cuernavaca, Morelos (Mexico)

    2001-07-01

    The saving and rational use of the energy is integral part of our life. This concept is seen already reflected in economic, technological, social and environmental factors in our country. The options of energy saving are seen like an alternative of investment as much for the user as for the electrical companies; nevertheless, to determine the saving potential in a sector it is necessary to understand how and for what purpose is the energy used. The domestic sector in our country consumes more than 20% of the demanded electrical energy and exist several factors that can cause that this percentage is increased. In spite of this, there is a great potential of energy saving in this sector, nevertheless specialized studies are required on the final uses of energy. But to be able to make these studies it is necessary to have a great amount of data on energy, climatologic, economic and financial, and social type. If these were found in a single data base, they could be used to plan, implement, evaluate and improve energy saving programs. This article focuses towards the importance of the knowledge of the real final uses of electrical energy in the domestic sector and presents as a result the conformation of a data base of household-electric final uses of electrical energy as well as the development of a tool that takes advantage of this data base to evaluate measures of change of equipment for a more efficient one. [Spanish] El ahorro y uso racional de la de energia es parte integral de nuestra vida. Este concepto se ve ya reflejado en factores economicos, tecnologicos, sociales y ambientales en nuestro pais. Las opciones de ahorro de energia son vistas como una alternativa de inversion tanto para el usuario como para las empresas electricas; sin embargo, para determinar el potencial de ahorro en un sector es necesario entender como y para que se emplea la energia. El sector domestico en nuestro pais consume mas del 20% de la energia electrica demandada y existen varios

  9. Bacteria and viruses modulate FcεRI-dependent mast cell activity 

    Directory of Open Access Journals (Sweden)

    Aleksandra Słodka

    2013-03-01

    Full Text Available Undoubtedly, mast cells play a central role in allergic processes. Specific allergen cross-linking of IgE bound to the high affinity receptors (FcεRI on the mast cell surface leads to the release of preformed mediators and newly synthesized mediators, i.e. metabolites of arachidonic acid and cytokines. More and more data indicate that bacteria and viruses can influence FcεRI-dependent mast cell activation. Some bacterial and viral components can reduce the surface expression of FcεRI. There are also findings that ligation of Toll-like receptors (TLRs by bacterial or viral antigens can affect IgE-dependent mast cell degranulation and preformed mediator release as well as eicosanoid production. The synergistic interaction of TLR ligands and allergen can also modify cytokine synthesis by mast cells stimulated via FcεRI. Moreover, data suggest that specific IgE for bacterial or viral antigens can influence mast cell activity. What is more, some bacterial and viral components or some endogenous proteins produced during viral infection can act as superantigens by interacting with the VH3 domain of IgE. All these observations indicate that bacterial and viral infections modify the course of allergic diseases by affecting FcεRI-dependent mast cell activation. 

  10. A novel activating chicken IgY FcR is related to leukocyte receptor complex (LRC)

    NARCIS (Netherlands)

    Viertlboeck, B.C.; Schmitt, R.; Hanczaruk, M.A.; Crooijmans, R.P.M.A.; Groenen, M.A.M.; Gobel, T.W.

    2009-01-01

    FcRs have multifaceted roles in the immune system. Chicken FcRs were demonstrated on macrophages decades ago; however, only recently the chicken Ig-like receptor AB1, encoded in the leukocyte receptor complex, was molecularly identified as a high-affinity FcR. The present study was initiated to

  11. La terminación de políticas y organizaciones públicas. El caso de la extinción de Luz y Fuerza del Centro en México

    Directory of Open Access Journals (Sweden)

    Jesús Rubio Campos

    2016-05-01

    Full Text Available Esta investigación analiza los modelos y estrategias utilizadas durante el proceso de terminación de políticas públicas, tema que ha sido poco estudiado hasta el momento. Para cumplir con dicho objetivo, se decidió utilizar un estudio de caso instrumental, el de la extinción de Luz y Fuerza del Centro (LyFC en México, a fin de identificar variables y su comportamiento en los patrones de terminación que sirvan de marco de análisis para casos similares. Los marcos teóricos sobre la terminación de políticas y organizaciones públicas descritos en la literatura sobre el tema resultaron muy apropiados para explicar el proceso de extinción de LyFC. Destacan la figura del “terminador”, la compensación por encima de lo establecido bajo condiciones normales a los afectados por la política, la desacreditación de la oposición con el uso de los medios de comunicación, el elemento sorpresa, la no intromisión del legislativo, crear divisiones organizacionales, dar claridad respecto a los pasos siguientes y el contar con una clara estrategia para la implementación del plan de terminación. Las excepciones al modelo fueron el uso sorpresivo de la fuerza pública para tomar las instalaciones de LyFC, así como el congelamiento de las cuentas bancarias del Sindicato Mexicano de Electricistas (SME por la falta de “toma de nota” y la colaboración de un grupo adverso al SME, conformado por trabajadores de la Comisión Federal de Electricidad (CFE afiliados al Sindicato Único de Trabajadores Electricistas de la República Mexicana (SUTERM. Otro aprendizaje que nos deja el caso, es que en este tipo de intervenciones para la terminación de políticas y organizaciones públicas, debería prevalecer el cuidado de la ética en el ejercicio de la función pública, pues la terminación de políticas públicas no debe abordarse solamente desde un punto de vista meramente técnico, sino que debe entenderse que las decisiones de pol

  12. AVALIAÇÃO DE PROPRIEDADES MECÂNICAS DA MADEIRA DE Eucalyptus urograndis SECOS

    Directory of Open Access Journals (Sweden)

    João Marcelo Soares Pereira

    2017-04-01

    Full Text Available O presente trabalho teve como objetivo avaliar as propriedades mecânicas de cisalhamento e compressão de corpos de prova de Eucalyptus urograndis secos. Os seis corpos de prova utilizados no estudo foram retirados de peças de calços com quatorze anos de idade, para cada ensaio mecânico: cisalhamento (fv0, compressão paralela às fibras (fc0 e normal às fibras (fc90. Os valores médios de resistência obtidos nos ensaios de cisalhamento, compressão paralela às fibras e normal às fibras foram 10,30 MPa, 59,17 MPa e 9,20 MPa, respectivamente. Todos os valores obtidos alcançaram valores médios acima da referência estabelecidos pela NBR 7190 (1997.

  13. HIV-specific Fc effector function early in infection predicts the development of broadly neutralizing antibodies.

    Science.gov (United States)

    Richardson, Simone I; Chung, Amy W; Natarajan, Harini; Mabvakure, Batsirai; Mkhize, Nonhlanhla N; Garrett, Nigel; Abdool Karim, Salim; Moore, Penny L; Ackerman, Margaret E; Alter, Galit; Morris, Lynn

    2018-04-01

    While the induction of broadly neutralizing antibodies (bNAbs) is a major goal of HIV vaccination strategies, there is mounting evidence to suggest that antibodies with Fc effector function also contribute to protection against HIV infection. Here we investigated Fc effector functionality of HIV-specific IgG plasma antibodies over 3 years of infection in 23 individuals, 13 of whom developed bNAbs. Antibody-dependent cellular phagocytosis (ADCP), complement deposition (ADCD), cellular cytotoxicity (ADCC) and cellular trogocytosis (ADCT) were detected in almost all individuals with levels of activity increasing over time. At 6 months post-infection, individuals with bNAbs had significantly higher levels of ADCD and ADCT that correlated with antibody binding to C1q and FcγRIIa respectively. In addition, antibodies from individuals with bNAbs showed more IgG subclass diversity to multiple HIV antigens which also correlated with Fc polyfunctionality. Germinal center activity represented by CXCL13 levels and expression of activation-induced cytidine deaminase (AID) was found to be associated with neutralization breadth, Fc polyfunctionality and IgG subclass diversity. Overall, multivariate analysis by random forest classification was able to group bNAb individuals with 85% sensitivity and 80% specificity based on the properties of their antibody Fc early in HIV infection. Thus, the Fc effector function profile predicted the development of neutralization breadth in this cohort, suggesting that intrinsic immune factors within the germinal center provide a mechanistic link between the Fc and Fab of HIV-specific antibodies.

  14. Parâmetros físicos e sensoriais de qualidade da carne de cabritos mestiços de diferentes grupos genéticos Physical and sensory quality parameters of the meat of crossbred goat kids of different genetic groups

    Directory of Open Access Journals (Sweden)

    Antonia Lucivânia de Sousa Monte

    2007-06-01

    Full Text Available Este trabalho avaliou a qualidade da carne de cabritos mestiços resultantes do cruzamento de animais Sem Raça Definida (SRD com dois diferentes grupos genéticos, Anglo Nubiana (A e Boer (B. Foram utilizados 07 animais SRD (controle, sete 1/2 A x 1/2 SRD, sete 3/4 A x 1/4 SRD, sete 1/2 B x 1/2 SRD e sete 3/4 B x 1/4 SRD. Os parâmetros estudados foram pH (pH0 - 30 minutos e pHf - 24 horas, cor (L*, a*, b*, capacidade de retenção de água (CRA, perda de peso na cocção (PPC, força de cisalhamento (FC, suculência, dureza e sabor. O pH 30 minutos foi de 6,92 nos SRD, diferindo significativamente apenas do grupo Boer (6,80 nos 1/2 B e 6,84 nos 3/4 B. O pH 24 horas foi de 5,64 para SRD, 5,42 para 1/2 A, 5,77 para 3/4 A, 5,59 para 1/2 B, e 5,55 para 3/4 B. As amostras 1/2 B e 3/4 B apresentaram valores diferentes para L*, mas não diferiram quanto à a* e b*. A carne dos animais mestiços reteve maior quantidade de água, apresentando menor perda de peso na cocção e menor força de cisalhamento, o que foi sentido pelos provadores como maior suculência e menor dureza. Essas carnes também apresentaram menor intensidade de sabor caprino. De um modo geral, esses efeitos foram mais evidentes na carne dos animais com maior grau de mestiçagem, sendo que o grupo Boer apresentou carne de melhor qualidade que o grupo Anglo Nubiano.This work evaluated the quality of the meat from SRD (undesined breed kid goats crossbred with two different genetic groups, Anglo Nubiana (A and Boer (B. Seven animals SRD (control were used, 07 1/2 A x 1/2 SRD, 07 3/4 A x 1/4 SRD, 07 1/2 B x 1/2 SRD, 07 3/4 B x 1/4 SRD. The studied patterns were pH (pHo - 30 minutes and pHf-24 hours, color (L*, a*,b*, capacity of retaining water (CRA, weight loss during cooking, resistance to shearing (FC, succulence, hardness and flavor. The pH 30 minutes was 6.92 for SRD, differing significantly from B (6.8 for 1/2 B and 6.84 for 3/4 B. The pH 24 hours was 5.64 for SRD, 5.42 for 1/2 A

  15. Força muscular de atletas de voleibol de 9 a 18 anos através da dinamometria computadorizada Fuerza muscular de atletas de voleibol de 9 a 18 años a través de la dinamometria computarizada Muscular strength of 9-18-year old volleyball athletes through computational dynamometry

    Directory of Open Access Journals (Sweden)

    Patrícia Schneider

    2004-04-01

    Full Text Available O objetivo deste estudo foi descrever e comparar as forças musculares isométrica e isocinética em diferentes graus maturacionais de meninos e meninas atletas de voleibol. Participou do estudo um total de 66 crianças e adolescentes saudáveis, em treinamento esportivo competitivo. Dos 37 meninos, 10 eram pré-púberes (PP, 15 púberes (PU e 12 pós-púberes (PO. Das 29 meninas, 11 eram PP, 13 PU e 5 PO. Foi utilizado um dinamômetro computadorizado (Cybex Norm para medir a força isocinética de flexão do cotovelo (FC e de extensão de joelho (EJ nas velocidades de 60 e 90º.s-1. A força isométrica foi medida nos mesmos exercícios nos ângulos de 60 e 90º (FC, e 45 e 60º (EJ. Utilizou-se a ANOVA para comparações entre os gêneros e graus maturacionais, e o teste post hoc de Tuckey. O nível de significância considerado foi de p El objetivo de este estudio fué describir y comparar las fuerzas musculares isométrica e isocinética en diferentes grados maduracionales de niños y niñas atletas de voleibol. Participó del estudio un total de 66 niños y adolescentes, en tratamiento deportivo competitivo. De los 37 niños, 10 eran pre-púberes (PP, 15 púberes (PU y 12 post-púberes (PO. De las 29 niñas, 11 eran PP, 13 PU e 5 PO. Fué utilizado un dinamómetro computarizado (Cybex Norm para medir la fuerza isocinética de flexión de codo (FC y extensión de rodilla (EJ en las velocidades de 60 y 90º.s-1. La fuerza isométrica fue medida en los mismos ejercicios en los ángulos de 60 y 90º (FC, y 45 y 60º (EJ. Se utilizó la ANOVA para comparaciones entre los géneros y grados maduracionales y el test post hoc de Tuckey. El nivel de significancia considerado fue de p The objective of this work was to describe and to compare the isometric and isokinetic muscular strength at different maturational degree of boys and girls volleyball athletes. 66 healthy children and youth participated in the study in a competitive sportive training

  16. Application of Sharī‘ah contracts in contemporary Islamic finance: A maqāṣid perspective

    Directory of Open Access Journals (Sweden)

    Younes Soualhi

    2015-12-01

    Full Text Available This research exposes the underlying maqāṣid embedded in Sharī‘ah contracts as applied in Islamic banking and finance. It addresses the problem of not observing maqāṣid in nominated and combined Sharī‘ah contracts as well as the problem of not sufficiently imbuing maqāṣid in products developed by Islamic financial institutions. As a benchmark of the maqāṣid of wealth, the research adopts Ibn ‘Āshūr’s classification of maqāṣid to evaluate the conformity of Sharī‘ah contracts to Maqāṣid al-Sharī‘ah namely, justice, circulation, transparency, and firmness. The study focuses on three markets related to the application of Sharī‘ah contracts, namely, banking, Islamic capital market, and takāful. The study concludes that, by and large, the application of Sharī‘ah contracts has observed Maqāṣid al-Sharī‘ah during its development and initial application stages of Islamic finance products; however, offering such products in the market has raised economic questions as to their viability and economic values. In addition, the malpractice of some Sharī‘ah contracts has long raised concerns as to the maqāṣid compliance of such products. The research recommends a de-sophistication of Islamic financial engineering to minimise the possibility of convergence with conventional finance. The research also emphasises product differentiation based on less complicated combined Sharī‘ah contracts.

  17. Identification of Staphylococcus species and subspecies with the MicroScan Pos ID and Rapid Pos ID panel systems.

    Science.gov (United States)

    Kloos, W E; George, C G

    1991-01-01

    The accuracies of the MicroScan Pos ID and Rapid Pos ID panel systems (Baxter Diagnostic Inc., MicroScan Division, West Sacramento, Calif.) were compared with each other and with the accuracies of conventional methods for the identification of 25 Staphylococcus species and 4 subspecies. Conventional methods included those used in the original descriptions of species and subspecies and DNA-DNA hybridization. The Pos ID panel uses a battery of 18 tests, and the Rapid Pos ID panel uses a battery of 42 tests for the identification of Staphylococcus species. The Pos ID panel has modified conventional and chromogenic tests that can be read after 15 to 48 h of incubation; the Rapid Pos ID panel has tests that use fluorogenic substrates or fluorometric indicators, and test results can be read after 2 h of incubation in the autoSCAN-W/A. Results indicated that both MicroScan systems had a high degree of congruence (greater than or equal to 90%) with conventional methods for the species S. capitis, S. aureus, S. auricularis, S. saprophyticus, S. cohnii, S. arlettae, S. carnosus, S. lentus, and S. sciuri and, in particular, the subspecies S. capitis subsp. capitis and S. cohnii subsp. cohnii. The Rapid Pos ID panel system also had greater than or equal to 90% congruence with conventional methods for S. epidermidis, S. caprae, S. warneri subsp. 2, S. xylosus, S. kloosii, and S. caseolyticus. For both MicroScan systems, congruence with conventional methods was 80 to 90% for S. haemolyticus subsp. 1, S. equorum, S. intermedius, and S. hyicus; and in addition, with the Rapid Pos ID panel system congruence was 80 to 89% for S. capitis subsp. ureolyticus, S. warneri subsp. 1, S. hominis, S. cohnii subsp. urealyticum, and S. simulans. The MicroScan systems identified a lower percentage (50 to 75%) of strains of S. lugdunensis, S. gallinarum, S. schleiferi, and S. chromogenes, although the addition of specific tests to the systems might increase the accuracy of identification

  18. Labelling IDS clusters by means of the silhouette index

    OpenAIRE

    Petrovic, Slovodan; Álvarez, Gonzalo; Orfila, Agustín; Carbó, Javier

    2006-01-01

    Proceeding of: IX Reunión Española sobre Criptología y Seguridad de la Información. Barcelona, 2006 One of the most difficult problems in the design of an anomaly based intrusion detection system (IDS) that uses clustering is that of labelling the ob- tained clusters, i.e. determining which of them correspond to ”good” behaviour on the network/host and which to ”bad” behaviour. In this paper, a new clusters’ labelling strategy, which makes use of the Silhouette clustering quality index is ...

  19. Crucero de evaluación del recurso merluza y otros dermesales BIC José Olaya Balandra 9806-07 de Puerto Pizarro a Huarmey

    OpenAIRE

    Zeballos Flor, Jorge; Samamé, Manuel; Romero, Miguel

    1998-01-01

    Presenta la composición especiólogica por lance de pesca realizado durante el Crucero BIC José Olaya Balandra 9806-07, del 27 de junio al 13 de julio de 1998. El análisis se realizó identificando los grupos taxonómicos y los pesos por especies. En total se registraron 126 especies: 96 peces, 19 crustáceos, 3 moluscos, 6 equinodermos, un cnidario y una "tortuga loro" Lepidochelys olivacea como pesca accidental. La captura total en el área estudiada fue de 24.192,86 kg, de los cuales 24.0...

  20. L'idéal de l'immigration européenne dans la Colombie du XIXe siècle: du rêve civilisateur à la peur de la subversion

    Directory of Open Access Journals (Sweden)

    1996-01-01

    Full Text Available Parmi les multiples outils de “civilisation” à la portée des dirigeants latino-américains du siècle dernier, l’immigration européenne s’imposa évidemment comme un des plus attirants, de par son caractère concret : au lieu d’importer des normes, il s’agissait d’importer des hommes “civilisés”, en chair et en os. Dans la course à l’immigration, qui caractérise la culture politique du XIXe siècle latino-américain, la Colombie se distingue par son incapacité à réaliser ce rêve. Malgré les échecs répétés des tentatives officielles, les groupes dirigeants débattent, tout au long du siècle des bienfaits et des dangers de l’immigration les plans d’immigration mis en oeuvre par les différentes tendances politiques qui se succèdent au pouvoir cristallisent leurs projets idéologiques. Les projets immigrationnistes, tout autant qu’ils révèlent les fluctuations de la perception de l’Europe, reflètent à merveille les différentes versions deidéal “civilisateur” des élites colombiennes. Mais l’absence de dynamique interne, l’inexistence d’un réel besoin de main-d’oeuvre, la fragilité des circuits étatiques, qui s’ajoutent aux obstacles évidents du pays - faible niveau d’activité économique, insuffisante intégration au marché international, difficulté de lutter contre la concurrence de pays plus prometteurs comme les États-Unis ou l’Argentine - achèveront d’enterrer l’idéal d’une immigration “civilisatrice”. EL IDEAL DE LA INMIGRACIÓN EUROPEA EN EL SIGLO XIX COLOMBIANO: DEL SUEÑO CIVILIZADOR AL MIEDO A LA SUBVERSIÓN. Entre las distintas herramientas de “civilización” al alcance de los dirigentes latinoamericanos del siglo XIX, la inmigración europea apareció evidentemente como una de las más deseables, por ser la más concreta: en vez de importar normas, se importarían hombres “civilizados”, de carne y hueso. En la carrera a la inmigración europea, que caracteriza la

  1. Activatory and Inhibitory Fcγ Receptors Augment Rituximab-mediated Internalization of CD20 Independent of Signaling via the Cytoplasmic Domain*

    Science.gov (United States)

    Vaughan, Andrew T.; Chan, Claude H. T.; Klein, Christian; Glennie, Martin J.; Beers, Stephen A.; Cragg, Mark S.

    2015-01-01

    Type I anti-CD20 mAb such as rituximab and ofatumumab engage with the inhibitory FcγR, FcγRIIb on the surface of B cells, resulting in immunoreceptor tyrosine-based inhibitory motif (ITIM) phosphorylation. Internalization of the CD20·mAb·FcγRIIb complex follows, the rate of which correlates with FcγRIIb expression. In contrast, although type II anti-CD20 mAb such as tositumomab and obinutuzumab also interact with and activate FcγRIIb, this interaction fails to augment the rate of CD20·mAb internalization, raising the question of whether ITIM phosphorylation plays any role in this process. We have assessed the molecular requirements for the internalization process and demonstrate that in contrast to internalization of IgG immune complexes, FcγRIIb-augmented internalization of rituximab-ligated CD20 occurs independently of the FcγRIIb ITIM, indicating that signaling downstream of FcγRIIb is not required. In transfected cells, activatory FcγRI, FcγRIIa, and FcγRIIIa augmented internalization of rituximab-ligated CD20 in a similar manner. However, FcγRIIa mediated a slower rate of internalization than cells expressing equivalent levels of the highly homologous FcγRIIb. The difference was maintained in cells expressing FcγRIIa and FcγRIIb lacking cytoplasmic domains and in which the transmembrane domains had been exchanged. This difference may be due to increased degradation of FcγRIIa, which traffics to lysosomes independently of rituximab. We conclude that the cytoplasmic domain of FcγR is not required for promoting internalization of rituximab-ligated CD20. Instead, we propose that FcγR provides a structural role in augmenting endocytosis that differs from that employed during the endocytosis of immune complexes. PMID:25568316

  2. Gêmeas idênticas discordantes para a doença de Cushing: relato de caso Identical twins discordant for Cushing's disease: case report

    Directory of Open Access Journals (Sweden)

    MARCELO MAIA PINHEIRO

    1999-09-01

    Full Text Available A doença de Cushing é rara em crianças e sua ocorrência em gêmeos é ainda mais rara. O presente estudo relata a ocorrência de gêmeas idênticas discordantes quanto à doença de Cushing. Uma das gêmeas, desenvolveu síndrome de Cushing aos 10 anos de idade. Sua investigação demonstrou cortisol urinário elevado, ACTH sérico elevado e testes de supressão com dexametasona compatíveis com doença de Cushing. A RMN mostrou macroadenoma hipofisário que foi operado por via transesfenoidal. O estudo imuno-histoquímico confirmou a presença de células produtoras de ACTH. A paciente entrou em remissão clínica e laboratorial desde a cirurgia. Após o desaparecimento dos estigmas do Cushing, a paciente reiniciou ganho estatural, mas permanece menor que sua irmã gêmea. Esta última permanece saudável 4 anos após o início da doença de sua irmã. Este é o terceiro caso do gênero relatado na literatura. Estes achados sugerem que fatores não genéticos estão envolvidos na gênese da doença de Cushing.Cushing's disease is rare in children and its ocurrence in identical twins is extremely rare. This paper reports on identical twins discordant for Cushing's disease. One of them first presented with a cushingoid phenotype by the age of 10. Her evaluation showed an increased urinary free-cortisol and serum ACTH. Her pattern in the dexametazone supression tests was compatible with Cushing's disease. MRI disclosed a pituitary macroadenoma which was removed by the transesphenoidal approach. Immunohistochemical studies of the tumor showed the presence of ACTH-producing cells. The patient went into clinical and laboratorial remission after surgery. She re-started to grow after the disappearance of the Cushing's phenotype but she is still shorter than her healthy sister. The latter remains disease-free 4 years after her sister's diagnosis. This represents the third such case reported in the literature. Our findings suggest that acquired

  3. 29 CFR 1918.97 - First aid and lifesaving facilities. (See appendix V of this part).

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 7 2010-07-01 2010-07-01 false First aid and lifesaving facilities. (See appendix V of... LONGSHORING General Working Conditions. § 1918.97 First aid and lifesaving facilities. (See appendix V of this... injury, regardless of severity, to the employer. (b) First aid. A first aid kit shall be available at or...

  4. Differential Use of Human Neutrophil Fcγ Receptors for Inducing Neutrophil Extracellular Trap Formation.

    Science.gov (United States)

    Alemán, Omar Rafael; Mora, Nancy; Cortes-Vieyra, Ricarda; Uribe-Querol, Eileen; Rosales, Carlos

    2016-01-01

    Neutrophils (PMN) are the most abundant leukocytes in the blood. PMN migrate from the circulation to sites of infection, where they are responsible for antimicrobial functions. PMN use phagocytosis, degranulation, and formation of neutrophil extracellular traps (NETs) to kill microbes. NETs are fibers composed of chromatin and neutrophil-granule proteins. Several pathogens, including bacteria, fungi, and parasites, and also some pharmacological stimuli such as phorbol 12-myristate 13-acetate (PMA) are efficient inducers of NETs. Antigen-antibody complexes are also capable of inducing NET formation. However the particular Fcγ receptor involved in triggering this function is a matter of controversy. In order to provide some insight into what Fcγ receptor is responsible for NET formation, each of the two human Fcγ receptors was stimulated individually by specific monoclonal antibodies and NET formation was evaluated. FcγRIIa cross-linking did not promote NET formation. Cross-linking other receptors such as integrins also did not promote NET formation. In contrast FcγRIIIb cross-linking induced NET formation similarly to PMA stimulation. NET formation was dependent on NADPH-oxidase, PKC, and ERK activation. These data show that cross-linking FcγRIIIb is responsible for NET formation by the human neutrophil.

  5. Differential Use of Human Neutrophil Fcγ Receptors for Inducing Neutrophil Extracellular Trap Formation

    Directory of Open Access Journals (Sweden)

    Omar Rafael Alemán

    2016-01-01

    Full Text Available Neutrophils (PMN are the most abundant leukocytes in the blood. PMN migrate from the circulation to sites of infection, where they are responsible for antimicrobial functions. PMN use phagocytosis, degranulation, and formation of neutrophil extracellular traps (NETs to kill microbes. NETs are fibers composed of chromatin and neutrophil-granule proteins. Several pathogens, including bacteria, fungi, and parasites, and also some pharmacological stimuli such as phorbol 12-myristate 13-acetate (PMA are efficient inducers of NETs. Antigen-antibody complexes are also capable of inducing NET formation. However the particular Fcγ receptor involved in triggering this function is a matter of controversy. In order to provide some insight into what Fcγ receptor is responsible for NET formation, each of the two human Fcγ receptors was stimulated individually by specific monoclonal antibodies and NET formation was evaluated. FcγRIIa cross-linking did not promote NET formation. Cross-linking other receptors such as integrins also did not promote NET formation. In contrast FcγRIIIb cross-linking induced NET formation similarly to PMA stimulation. NET formation was dependent on NADPH-oxidase, PKC, and ERK activation. These data show that cross-linking FcγRIIIb is responsible for NET formation by the human neutrophil.

  6. HIV-specific Fc effector function early in infection predicts the development of broadly neutralizing antibodies.

    Directory of Open Access Journals (Sweden)

    Simone I Richardson

    2018-04-01

    Full Text Available While the induction of broadly neutralizing antibodies (bNAbs is a major goal of HIV vaccination strategies, there is mounting evidence to suggest that antibodies with Fc effector function also contribute to protection against HIV infection. Here we investigated Fc effector functionality of HIV-specific IgG plasma antibodies over 3 years of infection in 23 individuals, 13 of whom developed bNAbs. Antibody-dependent cellular phagocytosis (ADCP, complement deposition (ADCD, cellular cytotoxicity (ADCC and cellular trogocytosis (ADCT were detected in almost all individuals with levels of activity increasing over time. At 6 months post-infection, individuals with bNAbs had significantly higher levels of ADCD and ADCT that correlated with antibody binding to C1q and FcγRIIa respectively. In addition, antibodies from individuals with bNAbs showed more IgG subclass diversity to multiple HIV antigens which also correlated with Fc polyfunctionality. Germinal center activity represented by CXCL13 levels and expression of activation-induced cytidine deaminase (AID was found to be associated with neutralization breadth, Fc polyfunctionality and IgG subclass diversity. Overall, multivariate analysis by random forest classification was able to group bNAb individuals with 85% sensitivity and 80% specificity based on the properties of their antibody Fc early in HIV infection. Thus, the Fc effector function profile predicted the development of neutralization breadth in this cohort, suggesting that intrinsic immune factors within the germinal center provide a mechanistic link between the Fc and Fab of HIV-specific antibodies.

  7. LA COLABORACIÓN EN I+D EN LA INDUSTRIA AUXILIAR DEL AUTOMÓVIL EN CATALUÑA. ANÁLISIS SEGÚN EL TAMAÑO EMPRESARIAL

    Directory of Open Access Journals (Sweden)

    Llorente Galera, Francisco

    2012-05-01

    Full Text Available Este artículo expone teóricamente por qué las empresas colaboran al realizar su I+D y lo hacen con diversos agentes externos. A partir de una muestra de proveedores directos de los fabricantes, ubicados en Cataluña, se ha analizado si hacen innovación de productos, las fases de investigación, diseño y desarrollo y si colaboran con agentes externos al realizar su I+D, diferenciando según el tamaño empresarial. Se verifica que las grandes empresas son las que lo realizan en mayor proporción; en cambio, las pequeñas son las que menos. Un muy reducido número de empresas colaboran con todos los agentes externos considerados, y todas son grandes empresas.

  8. Propuesta de gestión del servicio de soporte al cliente final en empresas proveedoras de servicios de telecomunicaciones, basada en ITIL v3

    OpenAIRE

    Loza Aguirre, Edison Fernando; Roa Marín, Henry; Samaniego, Cesar Gustavo

    2010-01-01

    El presente trabajo es una propuesta teórica de gestión de los procesos de soporte al cliente final en empresas proveedoras de servicios de telecomunicaciones. Primero, se analiza el uso de buenas prácticas y marcos referenciales de gestión de IT en el sector de las telecomunicaciones del Ecuador. A continuación, se describen los procesos involucrados en el soporte al cliente final y se desarrolla una propuesta de gestión del servicio de soporte tomando como base el marco referencial ITILv3....

  9. Overvalued ideas and their impact on treatment outcome Idéias supervalorizadas e seu impacto no resultado do tratamento

    Directory of Open Access Journals (Sweden)

    Fugen A. Neziroglu

    1999-12-01

    Full Text Available BACKGROUND: The presence of overvalued ideas (OVI in patients with obsessive-compulsive disorder (OCD has been theoretically linked to poorer treatment outcome. However, to date there have not been any quantitative measures of overvalued ideas. Therefore, the relationship between OVI and outcome has been primarily hypothetical. Rudimentary assessments have been attempted by asking patients to rate their strength of belief from 1 to 10, clinically rating the fixity of beliefs from 1 to 5, and rating patients on item 11 (insight on the Yale-Brown Obsessive Compulsive Scale (Y-BOCS. The purpose of this study was to determine the relationship between OVI, degree of severity of OCD symptoms, and improvement. METHOD: Twenty patients with OCD participated in the study. All patients were treated with six days a week of 90 minutes of exposure and response prevention (ERP and selective serotonin re-uptake inhibitors. No changes in medication were made during the course of treatment and all patients had been on their respective medications for at least three months prior to entering the study. Assessment scales consisted of the Overvalued Ideas Scale (OVIS, Y-BOCS, Beck Depression Inventory, and the Beck Anxiety Inventory. RESULTS: The results indicated that overvalued ideas did not necessarily correlate with severity of symptoms on the Y-BOCS. The higher the score on the OVIS, the less change on the Y-BOCS score. CONCLUSION: Overvalued ideas appear to be an important predictor of poor outcome.INTRODUÇÃO: A existência de idéias superestimadas (IS em pacientes com transtorno obsessivo-compulsivo (TOC vem sendo teoricamente relacionada a resultado insatisfatório do tratamento. Como até o momento não existem medidas quantitativas das idéias superestimadas, a relação entre IS e resultado fica restrita ao campo hipotético. Houve algumas tentativas de avaliações simples. Era pedido aos pacientes que avaliassem a intensidade de suas convicções, em

  10. Comprehensive evaluation of cesium removal by CuFC adsorption. The effects of initial concentration, CuFC dosage and co-existing ions in solution

    International Nuclear Information System (INIS)

    Yao Xu; Ping Gu; Guang-Hui Zhang; Jun Zhao; Lu Wang; Xiang-Zhu Xiao; Fei Han

    2017-01-01

    To use copper ferrocyanide (CuFC) more efficiently in wastewater treatment, the method of isotope carrying used in "1"3"7Cs removal was investigated. A calculation model based on Freundlich isotherm was established to determine the optimum initial cesium concentration, at which the highest decontamination factor (DF) could be obtained at a certain CuFC dosage. An accurate DF prediction model was developed to describe synergistic effects of sodium and potassium. A novel index called volumetric distribution coefficient (K_v_d) was proposed to evaluate adsorption performance in terms of DF and concentration factor. (author)

  11. Prolonged activity of a recombinant factor VIII-Fc fusion protein in hemophilia A mice and dogs

    Science.gov (United States)

    Dumont, Jennifer A.; Liu, Tongyao; Low, Susan C.; Zhang, Xin; Kamphaus, George; Sakorafas, Paul; Fraley, Cara; Drager, Douglas; Reidy, Thomas; McCue, Justin; Franck, Helen W. G.; Merricks, Elizabeth P.; Nichols, Timothy C.; Bitonti, Alan J.; Pierce, Glenn F.

    2012-01-01

    Despite proven benefits, prophylactic treatment for hemophilia A is hampered by the short half-life of factor VIII. A recombinant factor VIII-Fc fusion protein (rFVIIIFc) was constructed to determine the potential for reduced frequency of dosing. rFVIIIFc has an ∼ 2-fold longer half-life than rFVIII in hemophilia A (HemA) mice and dogs. The extension of rFVIIIFc half-life requires interaction of Fc with the neonatal Fc receptor (FcRn). In FcRn knockout mice, the extension of rFVIIIFc half-life is abrogated, and is restored in human FcRn transgenic mice. The Fc fusion has no impact on FVIII-specific activity. rFVIIIFc has comparable acute efficacy as rFVIII in treating tail clip injury in HemA mice, and fully corrects whole blood clotting time (WBCT) in HemA dogs immediately after dosing. Furthermore, consistent with prolonged half-life, rFVIIIFc shows 2-fold longer prophylactic efficacy in protecting HemA mice from tail vein transection bleeding induced 24-48 hours after dosing. In HemA dogs, rFVIIIFc also sustains partial correction of WBCT 1.5- to 2-fold longer than rFVIII. rFVIIIFc was well tolerated in both species. Thus, the rescue of FVIII by Fc fusion to provide prolonged protection presents a novel pathway for FVIII catabolism, and warrants further investigation. PMID:22246033

  12. Rapports 2017-2018 sur les frais de voyage pour Sylvain Dufour ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Chantal Taylor

    But: Participer au Symposium Gartner et ExpoIT 2017. Date(s). 2017-09-30 au 2017-10-06. Destination(s). Orlando, Floride (É.-U.) Billet d'avion. 751.97 $. Frais de transport au sol ou autrement. 228.39 $. Frais de logement. 1 102.96 $. Repas et frais divers. 1 342.07 $. Autre frais. 7.51 $. Total. 3 432.90 $. Commentaires.

  13. Conformational destabilization of Immunoglobulin G increases the low pH-binding affinity with the Neonatal Fc Receptor

    DEFF Research Database (Denmark)

    Walters, Benjamin T; Jensen, Pernille Foged; Larraillet, Vincent

    2016-01-01

    Crystallographic evidence suggests that the pH-dependent affinity of IgG molecules for the neonatal Fc receptor (FcRn) receptor primarily arises from salt bridges involving IgG histidine residues, resulting in moderate affinity at mildly acidic conditions. However, this view does not explain the ......H-dependent affinity in IgG-FcRn interactions and exemplify the important and often ignored role of intrinsic conformational dynamics in a protein ligand, to dictate affinity for biologically important receptors.......Crystallographic evidence suggests that the pH-dependent affinity of IgG molecules for the neonatal Fc receptor (FcRn) receptor primarily arises from salt bridges involving IgG histidine residues, resulting in moderate affinity at mildly acidic conditions. However, this view does not explain...... the diversity in affinity found in IgG variants, such as the YTE mutant (M252Y,S254T,T256E), which increases affinity to FcRn by up to 10×. Here we compare hydrogen exchange measurements at pH 7.0 and pH 5.5 with and without FcRn bound with surface plasmon resonance estimates of dissociation constants and Fc...

  14. Organizative structure of the System for Integral Management of Archive Documents (SiGeID 1.0

    Directory of Open Access Journals (Sweden)

    Irima Campillo Torres

    2012-04-01

    Full Text Available El nuevo contexto impone a las organizaciones la necesidad vital de disponer de adecuadas infraestructuras de comunicación, que les permitan conseguir un conocimiento real y suficiente del entorno. El presente artículo pretende mostrar la estructura organizativa del Sistema de Gestión Integral de Documentos de archivo SiGeID (1.0, como una herramienta informática que ayuda a las organizaciones empresariales al perfeccionamiento de la gestión de documentos. Dividido en tres módulos: Gestión y Seguridad Documental, Gestión de Archivo y Administración y Configuración, se tienen en cuenta además sus requerimientos funcionales y no funcionales

  15. Exponential relationship between DMIPP uptake and blood flow in normal and ischemic canine myocardium

    Energy Technology Data Exchange (ETDEWEB)

    Comans, E.F.I.; Lingen, A. van; Bax, J.J.; Sloof, G.W. [Free Univ. Hospital, Amsterdam (Netherlands). Dept. of Nuclear Medicine; Visser, F.C. [Free Univ. Hospital, Amsterdam (Netherlands). Dept. of Cardiology; Vusse, G.J. van der [Limburg Univ., Maastricht (Netherlands). Cardiovascular Research Inst.; Knapp, F.F. Jun. [Oak Ridge Lab., TN (United States). Nuclear Medicine Group

    1998-12-31

    In 10 open-chest dogs the left anterior descending coronary artery was cannulated and extracorporally bypass (ECB) perfused at reduced flow. Myocardial blood flow (MBF) was assessed with Scandium-46 labeled microspheres. Forty minutes after i.v. injection of DMIPP, the heart was excised and cut into 120 samples. In each sample MBF (ml/g*min) and DMIPP uptake (percentage of the injected dose per gram: %id/g) were assessed. The relation between normalized MBF and DMIPP uptake was assessed using a linear, with a zero and with a non-zero intercept, and an exponential model function: A[1-e{sup -MBF/Fc}], where A and Fc are the amplitude and flow constant, respectively. The goodness of fit for all models was expressed as the standard error of estimate (SEE). In all individual dogs the relation between DMIPP uptake and MBF was significantly better (p<0.001) represented by an exponential model than a linear model with zero intercept. In 8 of 10 dogs the exponential model showed a better fit than the linear model with a non-zero intercept. The difference was significant (p<0.05) in 5 dogs. For Pooled data, linear regression analysis with a non-zero intercept revealed: DMIPP=0.54+0.44*MBF (SEE: 0.18) and with a zero intercept: DMIPP=0.97*MBF (SEE: 0.27). The goodness of fit of the exponential model: DMIPP=1.07[1-e{sup -MBF/0.35}] (SEE: 0.15) was significantly better (p<0.0001) than the linear models. In the normal to low MBF range, uptake of the dimenthyl branched fatty acid analogue DMIPP shows an exponential relationship, which is more appropriate than a linear relationship from a physiological point of view. (orig./MG) [Deutsch] An 10 Hunden mit eroeffnetem Brustkorb wurde der Ramus interventricularis anterior der linken Koronararterie kanueliert und ueber einen extrakorporalen Bypass (ECB) mit einem reduzierten Fluss perfundiert. Der myokardiale Blutfluss (MBF) wurde ueber Scandium-46-markierte Mikrosphaeren erfasst. Vierzig Minuten nach der iv. Injektion von DMIPP wurde

  16. Increase in neutrophil Fc gamma receptor I expression following interferon gamma treatment in rheumatoid arthritis.

    Science.gov (United States)

    Goulding, N J; Knight, S M; Godolphin, J L; Guyre, P M

    1992-04-01

    The therapeutic potential of interferon gamma (IFN gamma) in a number of disease states is still being explored, but progress is hampered by the lack of a suitable measure of in vivo biological activity. To assess the in vivo biological effects of recombinant human IFN gamma (rhIFN gamma), 14 patients were studied in a randomised, prospective, double blind, placebo controlled trial of this cytokine for the treatment of rheumatoid arthritis. The levels of Fc gamma receptors on peripheral blood neutrophils were measured at baseline and after 21 days of once daily, subcutaneous injections of rhIFN gamma or placebo. An induction of neutrophil Fc gamma receptor type I (Fc gamma RI) was seen in the group of patients receiving recombinant human rhIFN gamma but not in those receiving placebo. No change in the expression of Fc gamma RII or Fc gamma RIII was detected. The amount of induction of Fc gamma RI detected on the neutrophils of patients receiving rhIFN gamma did not correlate with clinical measures of response at either 21 days or at the end of the study (24 weeks). No significant clinical responses were observed in the rhIFN gamma group at these times. These data confirm that the reported in vitro effect of IFN gamma on human neutrophil Fc receptor expression can be reproduced in vivo.

  17. Final Report- "An Algorithmic and Software Framework for Applied Partial Differential Equations (APDEC): A DOE SciDAC Integrated Software Infrastructure Center (ISIC)

    Energy Technology Data Exchange (ETDEWEB)

    Elbridge Gerry Puckett

    2008-05-13

    this he had been a Deputy Section Head at the National Center for Atmospheric Research in Colorado. My understanding is that Chris Algieri is the first person that Bill hired after coming to LBNL. The plan is that Chris Algieri will finish his PhD thesis while employed as a staff scientist in Bill's group. Both Sarah and Chris were supported in part with funds from DE-FC02-01ER25473. In Sarah's case she received support both while at U.C. Davis (UCD) taking classes and writing an MS thesis and during some of the time she was living in Berkeley, working at LBNL and finishing her PhD thesis. In Chris' case he was at U.C. Davis during the entire time he received support from DE-FC02-01ER25473. More specific details of their work are included in the report below. Finally my own research conducted under the auspices of DE-FC02-01ER25473 either involved direct collaboration with researchers at LBNL - Phil Colella and Peter Schwartz who is a member of Phil's Applied Numerical Algorithms Group - or was on problems that are closely related to research that has been and continues to be conducted by researchers at LBNL. Specific details of this work can be found below. Finally, I would like to note that the work conducted by my students and me under the auspices of this contract is closely related to work that I have performed with funding from my DOE MICS contract DE-FC02-03ER25579 'Development of High-Order Accurate Interface Tracking Algorithms and Improved Constitutive Models for Problems in Continuum Mechanics with Applications to Jetting' and with my CoPI on that grant Professor Greg Miller of the Department of Applied Science at UCD. In theory I tried to use funds from the SciDAC grant DE-FC02-01ER25473 to support work that directly involved implementing algorithms developed by my research group at U.C. Davis in software that was developed and is maintained by my SciDAC CoPI's at LBNL.

  18. Activatory and inhibitory Fcγ receptors augment rituximab-mediated internalization of CD20 independent of signaling via the cytoplasmic domain.

    Science.gov (United States)

    Vaughan, Andrew T; Chan, Claude H T; Klein, Christian; Glennie, Martin J; Beers, Stephen A; Cragg, Mark S

    2015-02-27

    Type I anti-CD20 mAb such as rituximab and ofatumumab engage with the inhibitory FcγR, FcγRIIb on the surface of B cells, resulting in immunoreceptor tyrosine-based inhibitory motif (ITIM) phosphorylation. Internalization of the CD20·mAb·FcγRIIb complex follows, the rate of which correlates with FcγRIIb expression. In contrast, although type II anti-CD20 mAb such as tositumomab and obinutuzumab also interact with and activate FcγRIIb, this interaction fails to augment the rate of CD20·mAb internalization, raising the question of whether ITIM phosphorylation plays any role in this process. We have assessed the molecular requirements for the internalization process and demonstrate that in contrast to internalization of IgG immune complexes, FcγRIIb-augmented internalization of rituximab-ligated CD20 occurs independently of the FcγRIIb ITIM, indicating that signaling downstream of FcγRIIb is not required. In transfected cells, activatory FcγRI, FcγRIIa, and FcγRIIIa augmented internalization of rituximab-ligated CD20 in a similar manner. However, FcγRIIa mediated a slower rate of internalization than cells expressing equivalent levels of the highly homologous FcγRIIb. The difference was maintained in cells expressing FcγRIIa and FcγRIIb lacking cytoplasmic domains and in which the transmembrane domains had been exchanged. This difference may be due to increased degradation of FcγRIIa, which traffics to lysosomes independently of rituximab. We conclude that the cytoplasmic domain of FcγR is not required for promoting internalization of rituximab-ligated CD20. Instead, we propose that FcγR provides a structural role in augmenting endocytosis that differs from that employed during the endocytosis of immune complexes. © 2015 by The American Society for Biochemistry and Molecular Biology, Inc.

  19. “Acompañamiento pedagogico directivo y calidad de la práctica pedagógica en II.EE. Red 13 UGEL 07

    OpenAIRE

    Campomanes Caceres, Marita Esther

    2017-01-01

    La presente investigación “Acompañamiento pedagógico directivo y la calidad de la práctica pedagógica en las instituciones educativas de la Red 13 UGEL 07 Lima. Tuvo como objetivo general “Determinar la relación que existe entre Acompañamiento pedagógico directivo y la calidad de la práctica pedagógica del docente en las instituciones educativas de la Red 13 UGEL 07. 2016. Esta investigación es de tipo básico teórico sustantivo, de nivel descriptivo correlacional, utilizó la...

  20. Fc engineering of anti-Nectin-2 antibody improved thrombocytopenic adverse event in monkey.

    Directory of Open Access Journals (Sweden)

    Tsutomu Oshima

    Full Text Available Nectin-2 is a transmembrane glycoprotein which is involved in the process of Ca2+-independent cell-cell adhesion. In our previous study, we have demonstrated that Nectin-2 is over-expressed in breast and ovarian cancer tissues by using gene expression analysis and immunohistochemistry. Furthermore, we discovered multiple anti-Nectin-2 fully human monoclonal antibodies which inhibited tumor growth in in vivo subcutaneous xenograft models with antibody-dependent cellular cytotoxicity (ADCC as the principal mechanism of action. In this report, we assessed the toxicity of Y-443, a fully human IgG1/kappa anti-Nectin-2 monoclonal antibody exhibiting strong in vitro ADCC and in vivo anti-tumor activity in cynomolgus monkeys (Macaca fascicularis (Cynos. Unexpectedly, upon administration, Y-443 induced strong thrombocytopenia through Nectin-2 expressed on Cyno platelets, presumably followed by phagocytosis in the mononuclear phagocytic system. To mitigate the adverse safety profile, we mutated the Fc region of Y-443 to reduce the Fc binding activity to Fcγ receptor I, which is the primary receptor for phagocytosis on macrophages. Moreover, we further engineered the Fc through defucosylation to maintain ADCC activity. The resultant Fc engineered antibody, termed Y-634, demonstrated diminished thrombocytopenia in Cyno toxicological studies and maintained anti-tumor activity in a mouse xenograft model. These findings suggest that Y-634 may have a therapeutic potential for the treatment of Nectin-2 positive cancers, and moreover, Fc engineering is a potential mitigation strategy to ameliorate safety liabilities in antibody induced thrombocytopenia while maintaining antibody potency.

  1. FcγRIIb on myeloid cells rather than on B cells protects from collagen-induced arthritis.

    Science.gov (United States)

    Yilmaz-Elis, A Seda; Ramirez, Javier Martin; Asmawidjaja, Patrick; van der Kaa, Jos; Mus, Anne-Marie; Brem, Maarten D; Claassens, Jill W C; Breukel, Cor; Brouwers, Conny; Mangsbo, Sara M; Boross, Peter; Lubberts, Erik; Verbeek, J Sjef

    2014-06-15

    Extensive analysis of a variety of arthritis models in germline KO mice has revealed that all four receptors for the Fc part of IgG (FcγR) play a role in the disease process. However, their precise cell type-specific contribution is still unclear. In this study, we analyzed the specific role of the inhibiting FcγRIIb on B lymphocytes (using CD19Cre mice) and in the myeloid cell compartment (using C/EBPαCre mice) in the development of arthritis induced by immunization with either bovine or chicken collagen type II. Despite their comparable anti-mouse collagen autoantibody titers, full FcγRIIb knockout (KO), but not B cell-specific FcγRIIb KO, mice showed a significantly increased incidence and severity of disease compared with wild-type control mice when immunized with bovine collagen. When immunized with chicken collagen, disease incidence was significantly increased in pan-myeloid and full FcγRIIb KO mice, but not in B cell-specific KO mice, whereas disease severity was only significantly increased in full FcγRIIb KO mice compared with incidence and severity in wild-type control mice. We conclude that, although anti-mouse collagen autoantibodies are a prerequisite for the development of collagen-induced arthritis, their presence is insufficient for disease development. FcγRIIb on myeloid effector cells, as a modulator of the threshold for downstream Ab effector pathways, plays a dominant role in the susceptibility to collagen-induced arthritis, whereas FcγRIIb on B cells, as a regulator of Ab production, has a minor effect on disease susceptibility. Copyright © 2014 by The American Association of Immunologists, Inc.

  2. Correlating the Impact of Well-Defined Oligosaccharide Structures on Physical Stability Profiles of IgG1-Fc Glycoforms.

    Science.gov (United States)

    More, Apurva S; Toprani, Vishal M; Okbazghi, Solomon Z; Kim, Jae H; Joshi, Sangeeta B; Middaugh, C Russell; Tolbert, Thomas J; Volkin, David B

    2016-02-01

    As part of a series of articles in this special issue describing 4 well-defined IgG1-Fc glycoforms as a model system for biosimilarity analysis (high mannose-Fc, Man5-Fc, GlcNAc-Fc and N297Q-Fc aglycosylated), the focus of this work is comparisons of their physical properties. A trend of decreasing apparent solubility (thermodynamic activity) by polyethylene glycol precipitation (pH 4.5, 6.0) and lower conformational stability by differential scanning calorimetry (pH 4.5) was observed with reducing size of the N297-linked oligosaccharide structures. Using multiple high-throughput biophysical techniques, the physical stability of the Fc glycoproteins was then measured in 2 formulations (NaCl and sucrose) across a wide range of temperatures (10°C-90°C) and pH (4.0-7.5) conditions. The data sets were used to construct 3-index empirical phase diagrams and radar charts to visualize the regions of protein structural stability. Each glycoform showed improved stability in the sucrose (vs. salt) formulation. The HM-Fc and Man5-Fc displayed the highest relative stability, followed by GlcNAc-Fc, with N297Q-Fc being the least stable. Thus, the overall physical stability profiles of the 4 IgG1-Fc glycoforms also show a correlation with oligosaccharide structure. These data sets are used to develop a mathematical model for biosimilarity analysis (as described in a companion article by Kim et al. in this issue). Copyright © 2016 American Pharmacists Association®. Published by Elsevier Inc. All rights reserved.

  3. fcGENE: a versatile tool for processing and transforming SNP datasets.

    Directory of Open Access Journals (Sweden)

    Nab Raj Roshyara

    Full Text Available Modern analysis of high-dimensional SNP data requires a number of biometrical and statistical methods such as pre-processing, analysis of population structure, association analysis and genotype imputation. Software used for these purposes often rely on specific and incompatible input and output data formats. Therefore extensive data management including multiple format conversions is necessary during analyses.In order to support fast and efficient management and bio-statistical quality control of high-dimensional SNP data, we developed the publically available software fcGENE using C++ object-oriented programming language. This software simplifies and automates the use of different existing analysis packages, especially during the workflow of genotype imputations and corresponding analyses.fcGENE transforms SNP data and imputation results into different formats required for a large variety of analysis packages such as PLINK, SNPTEST, HAPLOVIEW, EIGENSOFT, GenABEL and tools used for genotype imputation such as MaCH, IMPUTE, BEAGLE and others. Data Management tasks like merging, splitting, extracting SNP and pedigree information can be performed. fcGENE also supports a number of bio-statistical quality control processes and quality based filtering processes at SNP- and sample-wise level. The tool also generates templates of commands required to run specific software packages, especially those required for genotype imputation. We demonstrate the functionality of fcGENE by example workflows of SNP data analyses and provide a comprehensive manual of commands, options and applications.We have developed a user-friendly open-source software fcGENE, which comprehensively supports SNP data management, quality control and analysis workflows. Download statistics and corresponding feedbacks indicate that software is highly recognised and extensively applied by the scientific community.

  4. LIMIAR ANAERÓBIO EM EXERCÍCIOS RESISTIDOS: ANÁLISE DE ASPECTOS METODOLÓGICOS E HEMODINÂMICOS

    Directory of Open Access Journals (Sweden)

    Lucas Dantas Maia Forte

    2015-12-01

    Full Text Available Introdução A determinação do limiar anaeróbio em exercícios resistidos tem sido tema de diversos estudos. No entanto, o impacto desta avaliação sobre os parâmetros hemodinâmicos de pressão arterial e frequência cardíaca ainda é desconhecido. Objetivo Comparar a estimativa do limiar anaeróbio (LAn obtido em teste e reteste de protocolo incremental nos exercícios resistidos de supino reto (SR e rosca direta (RD e analisar o comportamento das variáveis hemodinâmicas de frequência cardíaca (FC, pressão arterial sistólica (PAS e diastólica (PAD durante protocolo de cargas incrementais. Métodos Oito voluntários do sexo masculino praticantes de treinamento resistido foram recrutados e realizaram quatro testes de cargas incrementais (dois no SR e dois na RD em dias distintos para a determinação do LAn. Durante cada teste, as variáveis de lactato sanguíneo, FC, PAS e PAD foram mensuradas ao final de cada estágio. Resultados Os valores do LAn expressos em porcentagens da carga máxima (1-RM para o SR em teste e reteste foram de 19,7±4,0% e 18,4±3,4% respectivamente e para RD de 17,7±3,4% e 19,4±3,1% respectivamente, não sendo identificadas diferenças estatísticas entre estas. No decorrer dos testes, a FC variou em média entre 90 e 135bpm para SR e entre 98 a 150bpm para RD. Apenas a PAS se alterou no decorrer dos testes, variando entre 111,8 a 123,3mmHg no SR e entre 119,4 a 141,3mmHg na RD. Conclusão Tais resultados nos sugerem que a intensidade relativa ao LAn não é diferente para SR ou RD em teste ou reteste. Não obstante, apesar de diferenças nos comportamentos hemodinâmicos entre os tipos de exercícios (SR vs. RD, os valores de FC e PAS se elevaram dentro de limites clinicamente aceitáveis, como sugerido pela literatura.

  5. Rationalités, référentiels et cadres idéologiques

    Directory of Open Access Journals (Sweden)

    Gérard Chevalier

    2008-04-01

    Full Text Available En s’appuyant sur les principaux paradigmes sociologiques, ce texte montre qu’à côté des grandes oppositions qui structurent le champ des sciences sociales (idées/structures, individu/société, l’alternative conscient/inconscient représente une difficulté incontournable. À considérer le débat sur les approches cognitives des politiques publiques, il apparaît que cette alternative trouve sa principale traduction dans l’opposition entre le caractère instrumental des idéologies, valeurs et croyances comme justifications ex post des décisions ou leur permanence comme structures mentales préréflexives. L’analyse des hésitations manifestées sur ce point par le modèle de Pierre Muller et l’examen des positions adoptées par différents politistes face à ce dernier, conduit à substituer la notion de cadre idéologique à celle de référentiel. Guidée à la fois par mes propres travaux sur la politique de la ville et par le souci de replacer les intérêts sociaux et les aspirations des acteurs au centre de l’analyse des décisions publiques, cette proposition entend saisir un niveau intermédiaire entre référentiel et habitus.Rationalities, referential and ideological framesTaking main sociological theories into consideration, this paper underlines the difficulties resulting from opposition between conscious and unconscious reasons in explaining individual actions. For political sciences, this issue is whether ideologies, and beliefs can be seen as instruments to support previous decisions or as their cognitive origin. The hesitations of Pierre Muller’s policies analysis framework on this subject and other patterns devoted by political scientists to the construction of public issues, lead to enhance the notion of ideological frame instead of referential, as Pierre Muller used it. By setting a medium level between referential and Pierre Bourdieu’s concept of habitus, this proposal aims to bring a better insight

  6. El banco de ojos y el donante idóneo The ideal eye bank and donor

    Directory of Open Access Journals (Sweden)

    Miguel Omar Mokey Castellanos

    2007-12-01

    Full Text Available El acelerado crecimiento y desarrollo de la Oftalmología en tecnología y formación de recursos humanos se extiende también a las actividades relacionadas con bancos de ojos y trasplantes de córnea. Por eso, se necesita fomentar una cultura de la donación en oftalmólogos, trabajadores de la salud y en la sociedad en sentido general. Constituyen objetivos de este trabajo: describir en qué se sustenta la actitud de la sociedad cubana ante la donación de órganos y tejidos para solucionar las crecientes demandas de pacientes que requieren de trasplante de córnea; informar las normas de la Asociación Panamericana de Bancos de Ojos, procedimientos y metodología seguidos ante un donante cadavérico de bulbos oculares. En el Servicio de Oftalmología de Hospital “Hermanos Ameijeiras” se han obtenido 2 395 bulbos oculares, con los que se han realizado 723 trasplantes de córnea y distribuido córneas y otros tejidos a distintas instituciones. Los bulbos oculares no útiles para fines ópticos se utilizaron para trasplantes lamelares predesceméticos o no, práctica quirúrgica e investigaciones. Se detectaron donantes positivos a VIH, hepatitis B y C en 3, 30 y 23 de ellos, respectivamente. No se reportaron enfermedades trasmitidas por el trasplante y, muy pocas oculares posquirúrgicas. Aunque las necesidades de córneas para trasplantes actualmente no se satisfacen, llenar esta demanda no puede conducirnos al incumplimiento de normas y procederes que nos alejarían del donante idóneo.The accelerated growth and development of ophthalmology in terms of technology and formation of human resources also embraces eye banks and corneal transplantation. Therefore, it is necessary to promote a culture of eye donation among ophthalmologists, health workers and the general society. The objectives of this paper were to describe the basis of the Cuban society attitudes towards organ and tissue donation as a way of meeting the growing demands of

  7. Analysis of cardiovascular system responses to forced vital capacity in COPD Análise das respostas do sistema cardiovascular ao teste de capacidade vital forçada na DPOC

    Directory of Open Access Journals (Sweden)

    Felipe A. R. Mendes

    2011-04-01

    Full Text Available BACKGROUND: The forced vital capacity (FVC test is routinely performed to evaluate pulmonary function in patients with chronic obstructive pulmonary disease (COPD. However, the influence of the FVC maneuver on the cardiovascular system of patients with COPD is poorly understood. OBJECTIVES: To analyze the behavior of heart rate (HR, blood pressure (BP and heart rate variability (HRV during the FVC test in COPD patients. METHODS: Nineteen men with COPD (72±7 years, GOLD stage I=3, II=5, III=7 and IV=4 patients performed the FVC test while having their HR monitored. HRV was assessed in time (rMSSD and frequency domains (LF, HF and LF/HF at rest, before and after the best FVC maneuver. BP was measured at rest, immediately before and at the end of the test, as well as 10 minutes after the end of the test. RESULTS: At the beginning of the FVC maneuver, HR decreased (pCONTEXTUALIZAÇÃO: O teste de capacidade vital forçada (CVF é rotineiramente realizado na avaliação da função pulmonar de pacientes com doença pulmonar obstrutiva crônica (DPOC. Entretanto, permanece pouco compreendida a influência do teste de CVF sobre o sistema cardiovascular de pacientes com DPOC. OBJETIVOS: Analisar o comportamento da frequência cardíaca (FC, pressão arterial (PA e variabilidade da frequência cardíaca (VFC no teste de CVF na DPOC. MÉTODOS: Dezenove homens com DPOC (72 ± 7 anos, no estágio de gravidade GOLD I=3, II=5, III=7 e IV=4 pacientes realizaram a manobra de CVF e tiveram sua FC monitorada durante todo o exame, e a VFC analisada nos domínios do tempo (rMSSD e da frequência (BF, AF e BF/AF durante o repouso, antes e após a melhor manobra de CVF. A PA foi analisada no repouso, imediatamente ao final da manobra de CVF e 10 minutos após o término de todos os testes. RESULTADOS: Ao início da manobra de CVF, a FC reduziu (p<0,001 e, em seguida, aumentou progressivamente até o final do teste (p<0,001. Após término da manobra, a FC continuou

  8. Liderazgo pedagógico y desarrollo institucional en las instituciones educativas de la Red 13 Ugel 07, 2016

    OpenAIRE

    Centenaro Orrego, Paola Inés

    2016-01-01

    El trabajo de investigación tuvo como objetivo establecer la relación entre el liderazgo pedagógico y el desarrollo institucional en las instituciones educativas de la Red 13 de la Ugel 07 este 2016. Es una investigación básica, de diseño no experimental, de corte transversal y correlacional que operacionalizó las variables Liderazgo pedagógico y Desarrollo institucional, se trabajó con una población finita y una muestra probalística que determino aleatoriamente a 140 docent...

  9. Site-selective conjugation of an anticoagulant aptamer to recombinant albumins and maintenance of neonatal Fc receptor binding

    DEFF Research Database (Denmark)

    Schmøkel, Julie; Voldum, Anders; Tsakiridou, Georgia

    2017-01-01

    -linked aptamer to that of aptamer alone was found using an anticoagulant activity assay measuring temporal levels of activated partial thrombin. Covalent albumin-aptamer conjugation, however, substantially compromized binding to hFcRn, to 10% affinity of that of non-conjugated WT, determined by biolayer......-life, predominately facilitated by engagement with the cellular recycling neonatal Fc receptor (FcRn), and ligand transport properties of albumin promote it as an attractive candidate to improve the pharmacokinetic profile of aptamers. This study investigates the effect of Cys34 site-selective covalent attachment...... of a factor IXa anticoagulant aptamer on aptamer functionality and human FcRn (hFcRn) engagement using recombinant human albumin (rHA) of either a wild type (WT) or an engineered human FcRn high binding variant (HB). Albumin-aptamer conjugates, connected covalently through a heterobifunctional succinimidyl 4...

  10. HAL/S-FC compiler system functional specification

    Science.gov (United States)

    1974-01-01

    Compiler organization is discussed, including overall compiler structure, internal data transfer, compiler development, and code optimization. The user, system, and SDL interfaces are described, along with compiler system requirements. Run-time software support package and restrictions and dependencies are also considered of the HAL/S-FC system.

  11. Transition de dépiégeage élastique de vortex supraconducteurs*

    Directory of Open Access Journals (Sweden)

    Fily Yaouen

    2012-04-01

    Full Text Available We present 2D numerical simulation results of superconductor vortex lattices driven over a random disorder. The vortex dynamics at the depinning threshold Fc is studied at zero temperature in the case of weak disorder. The dynamics is elastic and the depinning transition is analysed in the framework of a second order phase transition where the velocity response v to the driving force F behaves like v ~ (F − Fcβ. The analysis of the critical region of several large lattice sizes leads to the result that β = 0.27 ± 0.04. Nous présentons des résultats de simulations numériques à deux dimensions sur des réseaux de vortex dans les supraconducteurs que l’on met en mouvement dans un potentiel aléatoire. On étudie la dynamique des vortex au seuil de dépiégeage Fc dans le cas d’un faible désordre à température nulle. Les régimes élastiques au seuil de dépiégeage sont analysés dans le cadre des transitions de phase continues (transitions du second ordre. La réponse en vitesse v à la force d’entraînement F se comporte comme v ~ (F − Fcβ au voisinage immédiat du seuil de dépiégeage. Dans la région critique obtenue pour différentes grandes tailles du système simulé, nous mesurons l’exposant critique β = 0.27 ± 0.04.

  12. Ligand binding and antigenic properties of a human neonatal Fc receptor with mutation of two unpaired cysteine residues

    DEFF Research Database (Denmark)

    Andersen, Jan T; Justesen, Sune; Fleckenstein, Burkhard

    2008-01-01

    knowledge gives incentives for the design of IgG and albumin-based diagnostics and therapeutics. To study FcRn in vitro and to select and characterize FcRn binders, large quantities of soluble human FcRn are needed. In this report, we explored the impact of two free cysteine residues (C48 and C251......) of the FcRn heavy chain on the overall structure and function of soluble human FcRn and described an improved bacterial production strategy based on removal of these residues, yielding approximately 70 mg.L(-1) of fermentation of refolded soluble human FcRn. The structural and functional integrity...... was proved by CD, surface plasmon resonance and MALDI-TOF peptide mapping analyses. The strategy may generally be translated to the large-scale production of other major histocompatibility complex class I-related molecules with nonfunctional unpaired cysteine residues. Furthermore, the anti-FcRn response...

  13. Physical environment and life expectancy at birth in Mexico: an eco-epidemiological study Ambiente físico y esperanza de vida al nacer en México: un estudio eco-epidemiológico

    Directory of Open Access Journals (Sweden)

    Alvaro J. Idrovo

    2011-06-01

    Full Text Available The objective of this ecological study was to ascertain the effects of physical environment on life expectancy at birth, using data from all 32 Mexican states. 50 environmental indicators with information about demography, housing, poverty, water, soils, biodiversity, forestry resources, and residues were included in exploratory factor analysis. Four factors were extracted: population vulnerability/susceptibility, and biodiversity (FC1, urbanization, industrialization, and environmental sustainability (FC2, ecological resilience (FC3, and free-plague environments (FC4. Using OLS regressions, FC2, FC3, and FC4 were found to be positively associated with life expectancy at birth, while FC1 was negatively associated. This study suggests that physical environment is an important macro-determinant of the health of the Mexican population, and highlights the usefulness of ecological concepts in epidemiological studies.Para indagar los efectos del ambiente físico sobre la esperanza de vida al nacer se diseñó un estudio ecológico con datos de los estados mexicanos. Cincuenta indicadores ambientales con información sobre demografía, vivienda, pobreza, agua, suelos, biodiversidad, recursos forestales y residuos fueron incluidos en un análisis factorial exploratorio. Cuatro factores fueron extraídos: vulnerabilidad/susceptibilidad poblacional y biodiversidad (FC1, urbanización, industrialización y sustentabilidad ambiental (FC2, resiliencia ecológica (FC3 y ambientes libres de plagas (FC4. En regresiones lineales se observó que FC2, FC3 y FC4 se asociaron positivamente con la esperanza de vida al nacer, mientras FC1 estuvo asociado negativamente. Este estudio sugiere que el ambiente físico es un macro-determinante importante de la salud poblacional mexicana, y muestra la utilidad de los conceptos ecológicos en estudios epidemiológicos.

  14. Efeito da adição de feno de catingueira (Caesalpinea bracteosa na ração sobre o balanço de energia e de nitrogênio em ovinos morada nova Effect of vatingueira hay (Caesalpinea Bracteosa adition on apparent nitrogen and energy balance by morada nova sheep

    Directory of Open Access Journals (Sweden)

    Severino Gonzaga Neto

    2004-10-01

    Full Text Available Objetivando avaliar o efeito da adição de feno de catingueira (FC sobre os balanços de nitrogênio e de energia em ovinos Morada Nova, foram utilizados 15 animais machos, castrados, durante 22 dias. O delineamento estatístico foi inteiramente casualizado, com três tratamentos e cinco repetições. Os tratamentos consistiram da inclusão de 0, 50 e 100% de FC à ração, na base da matéria seca. Os níveis de inclusão do FC às dietas não influenciaram nenhum dos parâmetros de balanço de nitrogênio. A perda média total de nitrogênio foi de 75,60% do ingerido e através da urina, de 61,31%. Não se observou efeito dos níveis de inclusão de FC sobre os parâmetros de balanço de energia, exceto para a energia bruta perdida pelas fezes, que diminuiu linearmente, à medida que se aumentou a participação do FC às dietas. A perda média total de energia foi de 58,40% da ingerida. Os resultados permitem indicar o feno de catingueira como fonte estratégica de alimento para os animais do semi-árido nordestino, sobretudo no período seco.The objective of this study was to determine the effect of "catingueira" hay (CH addition on nutritional balance by sheep. Fifteen "Morada Nova" males castrated sheep were used in a complete randomized design with three treatments (0, 50 and 100% CH addition and five replications. The inclusion of CH did not influence the apparent nitrogen balance. The energy retained as percentage of the ingested energy was not affected by treatment, however, the energy retained as percentage of the digested energy declined linearly in function of the CH inclusion level. Considering the nutrititonal demands of the experimental animals, it was concluded that the average intake observed at the intermediary levels of CH, showed that the "catingueira" have a reasonable nutritive value, being a strategic forage plant to the herd in the dry season in the semi-arid region.

  15. Expression of Id2 in the Second Heart Field and Cardiac Defects in Id2 Knock-Out Mice

    NARCIS (Netherlands)

    Jongbloed, M. R. M.; Vicente-Steijn, R.; Douglas, Y. L.; Wisse, L. J.; Mori, K.; Yokota, Y.; Bartelings, M. M.; Schalij, M. J.; Mahtab, E. A.; Poelmann, R. E.; Gittenberger-De Groot, A. C.

    2011-01-01

    The inhibitor of differentiation Id2 is expressed in mesoderm of the second heart field, which contributes myocardial and mesenchymal cells to the primary heart tube. The role of Id2 in cardiac development is insufficiently known. Heart development was studied in sequential developmental stages in

  16. NCBI nr-aa BLAST: CBRC-RMAC-07-0037 [SEVENS

    Lifescience Database Archive (English)

    Full Text Available CBRC-RMAC-07-0037 sp|Q8NH41|OR4KF_HUMAN Olfactory receptor 4K15 dbj|BAC05798.1| sev...en transmembrane helix receptor [Homo sapiens] gb|EAW66492.1| olfactory receptor, family 4, subfamily K, member 15 [Homo sapiens] Q8NH41 1e-171 97% ...

  17. Influência do sexo e faixas de peso ao abate nas características físico-químicas da carne de capivara Effect of the factors sex and different slaughter weight in the physico-chemical characteristics of capybara meat (Hydrochaeris hydrochaeris

    Directory of Open Access Journals (Sweden)

    Maria C. Bressan

    2004-09-01

    Full Text Available Este trabalho objetivou avaliar o efeito dos fatores sexo e faixas de peso ao abate (30-40, 40-50, 50-60kg sobre o declínio de pH, pH final, cor, capacidade de retenção de água (CRA, perda de peso por cozimento (PPC e força de cisalhamento (FC da carne de capivara (Hydrochaeris hydrochaeris. As amostras do músculo longissimus dorsi (LD foram obtidas de 28 capivaras (16 machos e 12 fêmeas, provenientes de um zoocriadouro. Não houve influência dos fatores sexo e faixas de peso ao abate sobre o pH as 2h (6,29, 5h (6,29, 8h (6,25 e 24h (6,01 post mortem; na cor (Sistema CIE LAB para luminosidade (34,28, teor de vermelho (10,74 e teor de amarelo (1,74; CRA (0,47, PPC (32,27% e FC (5,20kgf/g. Comparando com espécies domésticas, a carne de capivara apresentou pH final elevado; índice de luminosidade baixo e teor de vermelho elevado, assemelhando-se à carnes de bovinos e ovinos (carnes vermelhas; CRA e PPC dentro dos limites considerados normais; e, textura (FC considerada macia.The aim of this work was to evaluate the effects of the factors sex and different slaughter weight groups (30-40, 40-50, 50-60kg in the pH decline, ultimate pH, colour, water holding capacity (WHC, cooking loss (CL and shear force (SF of capybara (Hydrochaeris hydrochaeris meat. Samples were constituted of longissimus dorsi (LD muscle of 28 capybaras (16 males and 12 females from the same farm. There were no effect of the factors sex and slaughter weight groups on the pH values at 2h (6.29, 5h (6.29, 8h (6.25 and 24h (6.01 post mortem; on colour values (CIE LAB System for brightness (34.28, redness (10.74 and yellowness (1.74; WHC (0.47, CL (32.27% and SF (5.20kgf/g. Comparing to livestock species, capybara meat had a high ultimate pH value, low values of brightness and high values of redness, looking like bovine and ovine meats (red meats; WHC and CL inside limits considered normal; and SF considered soft.

  18. Desempeño TIC de los docentes y su relación con los niveles de logro de los estudiantes en comprensión lectora y en matemática del segundo grado de primaria del distrito de Chorrillos - UGEL 07.

    OpenAIRE

    Marengo Murga, Víctor Enrique.

    2014-01-01

    El presente estudio tuvo como objetivo general determinar la relación entre las variables Desempeño TIC de los Docentes y los niveles de logro de Comprensión Lectora y Matemática de los estudiantes de segundo grado de nivel Primaria de las Instituciones Educativas del Distrito de Chorrillos - UGEL 07, utilizando dos instrumentos de recolección de datos el Instrumento de Desempeño TIC Docente y la Prueba de Matemática y Comprensión Lectora, teniendo una población de 31 Instituciones Educativas...

  19. Endothelial Fcγ Receptor IIB Activation Blunts Insulin Delivery to Skeletal Muscle to Cause Insulin Resistance in Mice

    Science.gov (United States)

    Tanigaki, Keiji; Chambliss, Ken L.; Yuhanna, Ivan S.; Sacharidou, Anastasia; Ahmed, Mohamed; Atochin, Dmitriy N.; Huang, Paul L.

    2016-01-01

    Modest elevations in C-reactive protein (CRP) are associated with type 2 diabetes. We previously revealed in mice that increased CRP causes insulin resistance and mice globally deficient in the CRP receptor Fcγ receptor IIB (FcγRIIB) were protected from the disorder. FcγRIIB is expressed in numerous cell types including endothelium and B lymphocytes. Here we investigated how endothelial FcγRIIB influences glucose homeostasis, using mice with elevated CRP expressing or lacking endothelial FcγRIIB. Whereas increased CRP caused insulin resistance in mice expressing endothelial FcγRIIB, mice deficient in the endothelial receptor were protected. The insulin resistance with endothelial FcγRIIB activation was due to impaired skeletal muscle glucose uptake caused by attenuated insulin delivery, and it was associated with blunted endothelial nitric oxide synthase (eNOS) activation in skeletal muscle. In culture, CRP suppressed endothelial cell insulin transcytosis via FcγRIIB activation and eNOS antagonism. Furthermore, in knock-in mice harboring constitutively active eNOS, elevated CRP did not invoke insulin resistance. Collectively these findings reveal that by inhibiting eNOS, endothelial FcγRIIB activation by CRP blunts insulin delivery to skeletal muscle to cause insulin resistance. Thus, a series of mechanisms in endothelium that impairs insulin movement has been identified that may contribute to type 2 diabetes pathogenesis. PMID:27207525

  20. Structural basis for pH-insensitive inhibition of immunoglobulin G recycling by an anti-neonatal Fc receptor antibody

    Energy Technology Data Exchange (ETDEWEB)

    Kenniston, Jon A.; Taylor, Brandy M.; Conley, Gregory P.; Cosic, Janja; Kopacz, Kris J.; Lindberg, Allison P.; Comeau, Stephen R.; Atkins, Kateri; Bullen, Jameson; TenHoor, Christopher; Adelman, Burt A.; Sexton, Daniel J.; Edwards, Thomas E.; Nixon, Andrew E. (Beryllium); (Dyax)

    2017-09-06

    The neonatal Fc receptor FcRn plays a critical role in the trafficking of IgGs across tissue barriers and in retaining high circulating concentrations of both IgG and albumin. Although generally beneficial from an immunological perspective in maintaining IgG populations, FcRn can contribute to the pathogenesis of autoimmune disorders when an abnormal immune response targets normal biological components. We previously described a monoclonal antibody (DX-2507) that binds to FcRn with high affinity at both neutral and acidic pH, prevents the simultaneous binding of IgG, and reduces circulating IgG levels in preclinical animal models. Here, we report a 2.5 Å resolution X-ray crystal structure of an FcRn–DX-2507 Fab complex, revealing a nearly complete overlap of the IgG–Fc binding site in FcRn by complementarity-determining regions in DX-2507. This overlap explains how DX-2507 blocks IgG binding to FcRn and thereby shortens IgG half-life by preventing IgGs from recycling back into circulation. Moreover, the complex structure explains how the DX-2507 interaction is pH-insensitive unlike normal Fc interactions and how serum albumin levels are unaffected by DX-2507 binding. These structural studies could inform antibody-based therapeutic approaches for limiting the effects of IgG-mediated autoimmune disease.

  1. Regulation of Monoclonal Antibody Immunotherapy by FcγRIIB.

    Science.gov (United States)

    Stopforth, Richard J; Cleary, Kirstie L S; Cragg, Mark S

    2016-05-01

    Monoclonal antibodies (mAb) are revolutionising the treatment of many different diseases. Given their differing mode of action compared to most conventional chemotherapeutics and small molecule inhibitors, they possess the potential to be independent of common modes of treatment resistance and can typically be combined readily with existing treatments without dose-limiting toxicity. However, treatments with mAb rarely result in cure and so a full understanding of how these reagents work and can be optimised is key for their subsequent improvement. Here we review how an understanding of the biology of the inhibitory Fc receptor, FcγRIIB (CD32B), is leading to the development of improved mAb treatments.

  2. OpenID connect as a security service in Cloud-based diagnostic imaging systems

    Science.gov (United States)

    Ma, Weina; Sartipi, Kamran; Sharghi, Hassan; Koff, David; Bak, Peter

    2015-03-01

    The evolution of cloud computing is driving the next generation of diagnostic imaging (DI) systems. Cloud-based DI systems are able to deliver better services to patients without constraining to their own physical facilities. However, privacy and security concerns have been consistently regarded as the major obstacle for adoption of cloud computing by healthcare domains. Furthermore, traditional computing models and interfaces employed by DI systems are not ready for accessing diagnostic images through mobile devices. RESTful is an ideal technology for provisioning both mobile services and cloud computing. OpenID Connect, combining OpenID and OAuth together, is an emerging REST-based federated identity solution. It is one of the most perspective open standards to potentially become the de-facto standard for securing cloud computing and mobile applications, which has ever been regarded as "Kerberos of Cloud". We introduce OpenID Connect as an identity and authentication service in cloud-based DI systems and propose enhancements that allow for incorporating this technology within distributed enterprise environment. The objective of this study is to offer solutions for secure radiology image sharing among DI-r (Diagnostic Imaging Repository) and heterogeneous PACS (Picture Archiving and Communication Systems) as well as mobile clients in the cloud ecosystem. Through using OpenID Connect as an open-source identity and authentication service, deploying DI-r and PACS to private or community clouds should obtain equivalent security level to traditional computing model.

  3. ESTIMACIÓN DE LA HEREDABILIDAD DEL INTERVALO DE PARTOS EN BOVINOS CRUZADOS

    Directory of Open Access Journals (Sweden)

    Oscar Vergara G

    2008-04-01

    Full Text Available Objetivo. Estimar la heredabilidad del intervalo de partos en bovinos cruzados. Materiales y métodos. Se utilizó información de la base de datos de la hacienda La Leyenda, ubicada en el municipio de Caucasia (Antioquia. Se realizó un análisis uni-característico empleando el modelo animal. En el modelo se consideraron los efectos fijos del grupo genético, año de nacimiento, época de nacimiento y el número de partos y como efectos aleatorios, el efecto aditivo directo, de ambiente permanente y residual. Resultados. Se obtuvo una heredabilidad de 0.15 ± 0.07 y una media fenotípica de 544 ± 97 días. Conclusión. La heredabilidad para el intervalo de partos fue baja, por lo que se puede lograr poco progreso genético seleccionando para esta característica.

  4. Denissen (Frans), André Baillon. Le gigolo d’Irma Idéal

    OpenAIRE

    Gnocchi, Maria Chiara

    2012-01-01

    Un titre aux résonances insolites vient chatouiller la règle sobre des Archives du Futur, la collection publiée sous la responsabilité des Archives et Musée de la Littérature de Bruxelles. André Baillon. Le gigolo d’Irma Idéal : un titre qui convient bien à une biographie que l’on a déjà — à juste titre — qualifiée d’extra-ordinaire (F. Ghysen, Le Carnet et les Instants, novembre 1998). Extra-ordinaire est d’ailleurs, avant tout, le protagoniste du volume : Baillon le grand écrivain, Baillon ...

  5. ANÁLISIS DE LA SECUENCIA DE PARTICIPACIÓN SEGMENTARIA EN EL MOVIMIENTO FINAL DEL LANZAMIENTO DE PESO EN GIRO

    Directory of Open Access Journals (Sweden)

    M. Gutiérrez-Dávila

    2010-09-01

    Full Text Available

     

     

    RESUMEN

    El objetivo general de este estudio es realizar un análisis descriptivo del patrón general de la participación segmentaria durante la fase de aceleración final del lanzamiento de peso en giro. Para ello, se han analizado a seis lanzadores de peso finalistas en el Campeonato del Mundo de Atletismo de Pista Cubierta, celebrado en Valencia, 2008. Se han utilizado técnicas fotogramétricas tridimensionales (3D a partir de la filmación del gesto con dos cámaras de video sincronizadas temporalmente a 100 Hz. Considerando que el tiempo empleado durante el movimiento final de aceleración del peso es diferente para cada lanzador, los registros se han normalizado en función del tiempo utilizando los algoritmos de splines de quinto grado e interpolándose posteriormente sus valores con respecto al porcentaje del tiempo total.  Los resultados ponen de manifiesto que la cadena cinética utilizada durante el movimiento final de aceleración del peso tiene dos modelos diferenciados: Hasta el 60% del tiempo total se produce un modelo de empuje o de participación simultánea de las articulaciones del tobillo, la rodilla y la cadera en extensión y, a continuación, el modelo de participación es secuencial, especialmente  mediante la contribución de la extensión del codo y muñeca. El movimiento de rotación a través del eje vertical se mantiene hasta el despegue del peso.
    Palabras Clave:cadena cinética, biomecánica, fotogrametría 3D.

     

    ABSTRACT

    The general objective of this study is to carry out a descriptive analysis of the general pattern of the segmental participation during the phase of final

  6. Diseño e implementación de una tarjeta de monitoreo y control en forma remota a través de internet, utilizando la tecnología del microcontrolador pic18f97j60

    OpenAIRE

    Montenegro Viera, Efren; Sandoya Tinoco, Eduardo; Ponguillo Intriago, Ronald Alberto

    2009-01-01

    El trabajo presentado en este artículo fue desarrollado para demostrar la aplicación de los recursos tecnológicos de dispositivos como el Microcontrolador PIC 18F97J60 en la Domótica. Existen diferentes maneras de implementar la domótica, motivo por el cual, hemos decidido optar por una nueva tecnología como lo es la de los PICs con sistemas embebidos para el desarrollo de una aplicación que reduzca en costo y tamaño lo que actualmente podemos encontrar en el mercado. Con la ayuda de di...

  7. Necesidades de investigación para el diagnóstico de anemia en poblaciones de altura

    OpenAIRE

    Gonzales, Gustavo F.; Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia. Lima, Perú Instituto de Investigaciones de la Altura, Universidad Peruana Cayetano Heredia. Lima, Perú Doctor en Ciencias; doctor en Medicina; Fano, Diego; Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia. Lima, Perú. licenciado; Vásquez Velásquez, Cinthya; Departamento de Ciencias Biológicas y Fisiológicas, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia. Lima, Perú. licenciado

    2017-01-01

    Tanto la deficiencia como la sobrecarga de hierro son situaciones que ponen en riesgo la salud y la vida de las personas, por lo que es importante mantener su homeostasis. Como la hemoglobina contiene 70% del hierro del organismo, la OMS recomienda su medición para determinar la prevalencia de anemia por deficiencia de hierro (ID), a pesar que ellos mismos reconocen que la anemia no es específica de ID. Como la hemoglobina aumenta con la altitud de residencia, la OMS recomienda corregir el pu...

  8. Características físico-químicas e custo do leite de cabras alimentadas com farelo de cacau ou torta de dendê Physical-chemical characteristics and cost of milk of goats fed with cocoa meal or palm kernel cake

    Directory of Open Access Journals (Sweden)

    H.G.O. Silva

    2006-02-01

    Full Text Available Avaliaram-se o efeito de dietas contendo farelo de cacau (FC ou torta de dendê (TD em substituição ao concentrado padrão, à base de milho e farelo de soja, sobre a composição físico-química e o resultado econômico da produção de leite. Foram utilizadas cinco cabras da raça Saanen com 41,66kg de peso e 60 dias de lactação, no delineamento experimental em quadrado latino 5×5. Os períodos experimentais foram de 14 dias, com 10 dias para adaptação e quatro para a coleta dos dados. As rações concentradas isoprotéicas (13,2% foram calculadas para uma produção de 2kg de leite/dia. As dietas constituíram-se de 36% de volumoso e 64% de concentrado. Utilizaram-se silagem de milho e concentrado-padrão (milho e farelo de soja com 0, 15 e 30% de substituição pelo FC ou TD. As dietas não influenciaram (P>0,05 as características físico-químicas do leite. A substituição reduziu o custo das dietas e apenas as com 15% de FC e 15% de TD apresentaram margem bruta superior à da dieta-controle.The effects of cocoa meal (FC or palm kernel cake (TD replacing corn and soybean meal standard concentrate on physical-chemical composition were evaluated and the economical analysis of milk production was performed. Five Saanen goats, with 41.66kg body weight and 60 days of lactation were used in a 5×5 latin square experimental design. The experimental periods of 14 days, had 10 days for adaptation and four days for data collection. The isoprotec diets (13.2%, were formulated to allow a milk production of 2kg/day. The diets were constituted of 36% roughage and 64% concentrate. The standard concentrate was replaced by 0, 15 and 30% of FC or TD. No effects of diets (P>0.05 on milk physical-chemical characteristics were observed. The inclusion of by-products reduced the cost of diets, however, only those with 15% FC and 15% TD showed gross margin higher than the one observed for the control diet.

  9. FcγRII-binding Centyrins mediate agonism and antibody-dependent cellular phagocytosis when fused to an anti-OX40 antibody.

    Science.gov (United States)

    Zhang, Di; Whitaker, Brian; Derebe, Mehabaw G; Chiu, Mark L

    2018-04-01

    Immunostimulatory antibodies against the tumor necrosis factor receptors (TNFR) are emerging as promising cancer immunotherapies. The agonism activity of such antibodies depends on crosslinking to Fc gamma RIIB receptor (FcγRIIB) to enable the antibody multimerization that drives TNFR activation. Previously, Fc engineering was used to enhance the binding of such antibodies to Fcγ receptors. Here, we report the identification of Centyrins as alternative scaffold proteins with binding affinities to homologous FcγRIIB and FcγRIIA, but not to other types of Fcγ receptors. One Centyrin, S29, was engineered at distinct positions of an anti-OX40 SF2 antibody to generate bispecific and tetravalent molecules named as mAbtyrins. Regardless of the position of S29 on the SF2 antibody, SF2-S29 mAbtyrins could bind FcγRIIB and FcγRIIA specifically while maintaining binding to OX40 receptors. In a NFκB reporter assay, attachment of S29 Centyrin molecules at the C-termini, but not the N-termini, resulted in SF2 antibodies with increased agonism owing to FcγRIIB crosslinking. The mAbtyrins also showed agonism in T-cell activation assays with immobilized FcγRIIB and FcγRIIA, but this activity was confined to mAbtyrins with S29 specifically at the C-termini of antibody heavy chains. Furthermore, regardless of the position of the molecule, S29 Centyrin could equip an otherwise Fc-silent antibody with antibody-dependent cellular phagocytosis activity without affecting the antibody's intrinsic antibody-dependent cell-meditated cytotoxicity and complement-dependent cytotoxicity. In summary, the appropriate adoption FcγRII-binding Centyrins as functional modules represents a novel strategy to engineer therapeutic antibodies with improved functionalities.

  10. Construction of a bimolecular fluorescence complementation (BiFC ...

    African Journals Online (AJOL)

    DR. NJ TONUKARI

    2012-08-02

    Aug 2, 2012 ... Accepted 8 June, 2012. Protein–protein interactions are essential for signal transduction in cells. ... BiFC is a novel technology that is used for identifying .... occasional fluorescence was observed, it was very weak ... Light field.

  11. An Engineered Disulfide Bond Reversibly Traps the IgE-Fc3-4 in a Closed, Nonreceptor Binding Conformation

    Energy Technology Data Exchange (ETDEWEB)

    Wurzburg, Beth A.; Kim, Beomkyu; Tarchevskaya, Svetlana S.; Eggel, Alexander; Vogel, Monique; Jardetzky, Theodore S. [Bern; (Stanford-MED)

    2013-08-02

    IgE antibodies interact with the high affinity IgE Fc receptor, FcϵRI, and activate inflammatory pathways associated with the allergic response. The IgE-Fc region, comprising the C-terminal domains of the IgE heavy chain, binds FcϵRI and can adopt different conformations ranging from a closed form incompatible with receptor binding to an open, receptor-bound state. A number of intermediate states are also observed in different IgE-Fc crystal forms. To further explore this apparent IgE-Fc conformational flexibility and to potentially trap a closed, inactive state, we generated a series of disulfide bond mutants. Here we describe the structure and biochemical properties of an IgE-Fc mutant that is trapped in the closed, non-receptor binding state via an engineered disulfide at residue 335 (Cys-335). Reduction of the disulfide at Cys-335 restores the ability of IgE-Fc to bind to its high affinity receptor, FcϵRIα. The structure of the Cys-335 mutant shows that its conformation is within the range of previously observed, closed form IgE-Fc structures and that it retains the hydrophobic pocket found in the hinge region of the closed conformation. Locking the IgE-Fc into the closed state with the Cys-335 mutation does not affect binding of two other IgE-Fc ligands, omalizumab and DARPin E2_79, demonstrating selective blocking of the high affinity receptor binding.

  12. Embryo-fetal transfer of bevacizumab (Avastin) in the rat over the course of gestation and the impact of neonatal Fc receptor (FcRn) binding.

    Science.gov (United States)

    Thorn, Mitchell; Piche-Nicholas, Nicole; Stedman, Donald; Davenport, Scott W; Zhang, Ning; Collinge, Mark; Bowman, Christopher J

    2012-10-01

    There is concern about embryo-fetal exposure to antibody-based biopharmaceuticals based on the increase of such therapies being prescribed to women of childbearing potential. Therefore, there is a desire to better characterize embryo-fetal exposure of these molecules. The pregnant rat is a standard model for evaluating the potential consequences of exposure but placental transfer of antibody-based biopharmaceuticals is not well understood in this model. The relative embryo-fetal distribution of an antibody-based biopharmaceutical was evaluated in the rat. Bevacizumab (Avastin) was chosen as a tool antibody since it does not have significant target binding in the rat that might influence embryo-fetal biodistribution. Avastin was labeled with a fluorescent dye, characterized, and injected into pregnant rats at different gestation ages. Labeled Avastin in fetal tissues was visualized ex vivo using an IVIS 200 (Caliper, A PerkinElmer Company, Alameda, CA). Avastin localized to the fetus as early as 24-hr post intravenous injection of the dam, and was taken up by the fetus in a dose-dependent manner. Avastin was detectable in the developing embryo as early as gestation day 13 and continued to be transferred until the end of gestation. Fetal transfer of Avastins mutated in the portion of the antibody that binds the neonatal Fc receptor (FcRn) was tested in late gestation and was found to correlate with affinities of the mutant Avastin antibody to FcRn. The novel application of this imaging technology was used to characterize the onset and duration of Avastin maternal-fetal transfer in rats and the importance of FcRn binding. © 2012 Wiley Periodicals, Inc.

  13. La prose d’idées espagnole et le paradigme de l’économie domestique ou l’économie dans la littérature (XVIe-XVIIe siècles

    Directory of Open Access Journals (Sweden)

    Marie-Laure Acquier

    2010-07-01

    Full Text Available Cette étude tente d’approcher le sens et les enjeux de la présence du paradigme de l’économie domestique dans la prose d’idées espagnole, en particulier dans la littérature nobiliaire et « économique » du siècle d’or espagnol. Inclus dans le vaste champ de la philosophie morale dont l’histoire ramène aux sources antiques et médiévales, le gouvernement de la maison (sens étymologique du terme « économie » peine à s’abstraire, dans les textes de cette « littératures d’idées », d’une chaîne conceptuelle analogique structurante qui la situe entre le gouvernement de la république (politique et le gouvernement de soi (éthique. Or à l’âge classique, la littérature est traversée par des tensions paradoxales qui lui permettent de conserver son rôle de creuset de tous les savoirs mais en même temps la conduisent à favoriser l’autonomisation progressive -mais jamais linéaire- des différents champs de la connaissance. L’article présenté s’attache à faire la part entre les adaptations génériques inventées par la prose d’idées pour s’approprier ces savoirs, l’instrumentalisation dans les discours de l’inclusion de l’« économie » dans la philosophie morale à des fins de stratégies sociales (individuelles ou catégorielles (collectives et les glissements épistémologiques que cela suppose. En passant par les strates de l’analyse générique, socio-historique et épistémologique d’un Discours économique (1652 dû à Antonio López de Vega, ce travail tente de mettre en valeur la promotion d’une « économie moralisée », qui jette les bases d’une possible évolution de l’« économie domestique » dépassant la gestion et l’administration de la maison.El presente estudio intenta medir la significación del paradigma de la economía doméstica en la prosa de ideas española, en particular en la literatura nobiliaria y económica del siglo de oro español. Incluido en el

  14. Fatores de correção para perímetro escrotal ao sobreano para tourinhos mestiços Aberdeen Angus x Nelore Adjustment factors for scrotal circumference at yearling for crossbred Aberdeen Angus x Nelore young bulls

    Directory of Open Access Journals (Sweden)

    J.S. Lopes

    2009-04-01

    Full Text Available Obtiveram-se fatores de correção (FC para o perímetro escrotal ao sobreano (PES para os efeitos de grupo genético (GG, heterozigose individual (HI, peso ao sobreano (PS e idade do animal à pesagem de sobreano (IDS, utilizando-se registros de peso corporal e medidas de perímetro escrotal obtidos de 11.662 tourinhos das raças Aberdeen Angus, Nelore e de produtos do cruzamento entre elas, criados nas regiões Sul, Sudeste e Centro-Oeste do Brasil, nascidos entre 1987 e 2001. Os coeficientes de regressão que geraram os FC foram estimados pelo método dos quadrados mínimos, adotando um modelo que incluiu os efeitos de grupo de contemporâneos ao sobreano (GC, GG, heterozigose materna (HM, HI, PS e IDS. Todos os efeitos incluídos no modelo foram significativos (PAdjustment factors (AF for scrotal circumference at yearling (SCY were figured out for effects of genetic group (GG, individual heterozygosis (IH, yearling weight (YW, and age of the animal at yearling weight (AYW using body weight and scrotal circumference records from 11,662 Aberdeen Angus, Nelore, and their crosses. The animals were born from 1987 to 2001 and were raised in the South East and Central West Regions of Brazil. The regression coefficients to obtain AF were estimated by least squares means method. The model included the fixed effects of contemporaneous group at yearling (CG, maternal heterozygosis (MH, IH, and the covariates YW (linear and quadratic effects and AYW (linear effect. All the factors included in the model showed significant effects (P<0.01 on SCY. The mean and standard deviation for SCY were 29.90±3.55cm. Quadratic effect of YW on SCY was also observed. Decreases in SCY with the increase in YW was found. High SCY was observed immediately after post-weaning. The YW effects on SCY were 0.06695804±0.00345000cm/kg (linear effect and -0.00005252±0.00000508cm/kg² (quadratic effect. The AYW linear effect on SCY was 0.02176450±0.00038568cm/day. The factors

  15. "POR QUE SOU VOLUNTÁRIO?": ETAPA DE CONSTRUCÃO DE ESCALA

    Directory of Open Access Journals (Sweden)

    Marcos Adller de Almeida Nascimento

    2012-07-01

    Full Text Available A análise da validade de um instrumento quantitativo que permita conhecer o que conduz, o que mantém e o que faz deixar um voluntário a sua atividade é o objetivo deste trabalho. Quanto aos objetivos, esta pesquisa é descritiva, uma vez que apresenta a análise da validade de um instrumento quantitativo que busca compreender e descrever motivos do trabalho voluntário na Pastoral da Criança. O instrumento é baseado em idéias teóricas de Souza, Medeiros e Fernandes (2006. O índice de confiabilidade – Alfa de Cronbach – alcançou valores entre 0,7 e 0,8. No que tange ao Teste de Adequação da Amostra Kaiser- Meyer-Olkin também um bom índice foi obtido: 0,74. Apesar dos bons resultados de confiabilidade e dos testes de adequação da Análise Fatorial, em nenhuma das variáveis foi encontrada a combinação esperada, qual seja: questões versus perfil. Há a necessidade de melhorar o sentido semântico de determinados fatores, ou mesmo de aumentar a quantidade de indicadores, para que eles consigam gerar outras correlações entre eles.

  16. Dual role of Fcγ receptors in host defense and disease in Borrelia burgdorferi-infected mice

    Directory of Open Access Journals (Sweden)

    Alexia Anne Belperron

    2014-06-01

    Full Text Available Arthritis in mice infected with the Lyme disease spirochete, Borrelia burgdorferi, results from the influx of innate immune cells responding to the pathogen in the joint and is influenced in part by mouse genetics. Production of inflammatory cytokines by innate immune cells in vitro is largely mediated by Toll-like receptor (TLR interaction with Borrelia lipoproteins, yet surprisingly mice deficient in TLR2 or the TLR signaling molecule MyD88 still develop arthritis comparable to that seen in wild type mice after B. burgdorferi infection. These findings suggest that other, MyD88-independent inflammatory pathways can contribute to arthritis expression. Clearance of B. burgdorferi is dependent on the production of specific antibody and phagocytosis of the organism. As Fc receptors (FcγR are important for IgG-mediated clearance of immune complexes and opsonized particles by phagocytes, we examined the role that FcγR play in host defense and disease in B. burgdorferi-infected mice. B. burgdorferi-infected mice deficient in the Fc receptor common gamma chain (FcεRγ-/- mice harbored ~10 fold more spirochetes than similarly infected wild type mice, and this was associated with a transient increase in arthritis severity. While the elevated pathogen burdens seen in B. burgdorferi-infected MyD88-/- mice were not affected by concomitant deficiency in FcγR, arthritis was reduced in FcεRγ-/-MyD88-/- mice in comparison to wild type or single knockout mice. Gene expression analysis from infected joints demonstrated that absence of both MyD88 and FcγR lowers mRNA levels of proteins involved in inflammation, including Cxcl1 (KC, Xcr1 (Gpr5, IL-1beta, and C reactive protein. Taken together, our results demonstrate a role for FcγR-mediated immunity in limiting pathogen burden and arthritis in mice during the acute phase of B. burgdorferi infection, and further suggest that this pathway contributes to the arthritis that develops in B. burgdorferi

  17. Optimal Design of TCR/FC in Electric Arc Furnaces for Power Quality Improvement in Power Systems

    Directory of Open Access Journals (Sweden)

    Mahdi TORABIAN ESFAHANI

    2009-12-01

    Full Text Available Electric Arc Furnaces (EAFs are unbalanced, nonlinear and time varying loads, which can cause many problems in the power system quality. As the use of arc furnace loads increases in industry, the importance of the power quality problems also increase. So in order to optimize the usages of electric power in EAFs, it is necessary to minimize the effects of arc furnace loads on power quality in power systems as much as possible. Therefore, in this paper, design and simulation of an electric plant supplying an arc furnace is considered. For this purpose, a three phase arc furnace model, which can simulate all the mentioned power quality indices, is developed based on Hyperbolic -Exponential model (V-I model. Then by considering the high changes of reactive power and voltage flicker of nonlinear furnace load, a thyristor controlled reactor compensation with fixed capacitor (TCR/FC are designed and simulated. In this procedure, the reactive power is measured so that maximum speed and accuracy are achieved. Finally, simulation results verify the accuracy of the load modelling and show the effectiveness of the proposed TCR/FC model for reactive compensating of the EAF.

  18. Antibody-mediated immunity to the obligate intracellular bacterial pathogen Coxiella burnetii is Fc receptor- and complement-independent

    Directory of Open Access Journals (Sweden)

    Heinzen Robert A

    2009-05-01

    Full Text Available Abstract Background The obligate intracellular bacterial pathogen Coxiella burnetii causes the zoonosis Q fever. The intracellular niche of C. burnetii has led to the assumption that cell-mediated immunity is the most important immune component for protection against this pathogen. However, passive immunization with immune serum can protect naïve animals from challenge with virulent C. burnetii, indicating a role for antibody (Ab in protection. The mechanism of this Ab-mediated protection is unknown. Therefore, we conducted a study to determine whether Fc receptors (FcR or complement contribute to Ab-mediated immunity (AMI to C. burnetii. Results Virulent C. burnetii infects and replicates within human dendritic cells (DC without inducing their maturation or activation. We investigated the effects of Ab opsonized C. burnetii on human monocyte-derived and murine bone marrow-derived DC. Infection of DC with Ab-opsonized C. burnetii resulted in increased expression of maturation markers and inflammatory cytokine production. Bacteria that had been incubated with naïve serum had minimal effect on DC, similar to virulent C. burnetii alone. The effect of Ab opsonized C. burnetii on DC was FcR dependent as evidenced by a reduced response of DC from FcR knockout (FcR k/o compared to C57Bl/6 (B6 mice. To address the potential role of FcR in Ab-mediated protection in vivo, we compared the response of passively immunized FcR k/o mice to the B6 controls. Interestingly, we found that FcR are not essential for AMI to C. burnetii in vivo. We subsequently examined the role of complement in AMI by passively immunizing and challenging several different strains of complement-deficient mice and found that AMI to C. burnetii is also complement-independent. Conclusion Despite our data showing FcR-dependent stimulation of DC in vitro, Ab-mediated immunity to C. burnetii in vivo is FcR-independent. We also found that passive immunity to this pathogen is independent of

  19. Interação entre as vias de sinalização de receptores serotoninérgicos e Β-adrenérgicos em artéria femoral de ratos

    Directory of Open Access Journals (Sweden)

    Maria Andréia Delbin

    2012-01-01

    Full Text Available FUNDAMENTO: A doença coronária tem sido amplamente estudada em pesquisas cardiovasculares. No entanto, pacientes com doença arterial periférica (DAP têm piores resultados em comparação àqueles com doença arterial coronariana. Portanto, os estudos farmacológicos com artéria femoral são altamente relevantes para a melhor compreensão das respostas clínicas e fisiopatológicas da DAP. OBJETIVO: Avaliar as propriedades farmacológicas dos agentes contráteis e relaxantes na artéria femoral de ratos. MÉTODOS: As curvas de resposta de concentração à fenilefrina contrátil (FC e à serotonina (5-HT e os agentes relaxantes isoproterenol (ISO e forskolina foram obtidos na artéria femoral de ratos isolada. Para as respostas ao relaxamento, os tecidos foram contraídos com FC ou 5-HT. RESULTADOS: A potência de classificação na artéria femoral foi de 5-HT > FC para as respostas contráteis. Em tecidos contraídos com 5-HT, as respostas de relaxamento ao isoproterenol foram praticamente abolidas em comparação aos tecidos contraídos com FC. A forskolina, um estimulante da adenilil ciclase, restaurou parcialmente a resposta de relaxamento ao ISO em tecidos contraídos com 5-HT. CONCLUSÃO: Ocorre uma interação entre as vias de sinalização dos receptores β-adrenérgicos e serotoninérgicos na artéria femoral. Além disso, esta pesquisa fornece um novo modelo para estudar as vias de sinalização serotoninérgicas em condições normais e patológicas que podem ajudar a compreender os resultados clínicos na DAP.

  20. Activité antioxydante et anti-candidosique de l’huile essentielle de Laurus nobilis L. provenant de la région d’El Kala (Nord–Est Algérien

    Directory of Open Access Journals (Sweden)

    Amira OUIBRAHIM

    2015-12-01

    Full Text Available L’huile essentielle extraite de Laurus nobilis L. par hydrodistillation a fourni un rendement de 0,7%. L’analyse de l’huile essentielle par CG/SM a permis l’identification de 17 composants, principalement des monoterpènes. 1,8 cinéole (36,31%, β-linalol (22.52%, eugenol-methylether (9.17% et camphene (7.37% ont constitué les composés majoritaires avec un total de 96,95%. L’activité antioxydante in vitro a été évaluée à travers trois méthodes: le test de piégeage du radical libre DPPH avec un IC50 de 1,55 ± 0,14 mg/ml ; le test de blanchiment de β-carotène qui a permis d’enregistrer un pourcentage d’inhibition de la peroxydation lipidique de 41,97% et finalement l’évaluation du pouvoir réducteur qui s’est avéré faible par rapport à celui de l’acide ascorbique. L’activité anticantidosique a été testée sur 4 souches de Candida albicans en utilisant la méthode de dilution en milieu gélosé. Les quatre souches ont montré une sensibilité avec une CMI de 0,68 mg/ml pour les souches d’origine urinaire et vaginale et 1.08 mg/ml pour les Candida d’origine bucco-nasale. L’huile essentielle de Laurus nobilis originaire de la région d’El Kala a manifesté des propriétés antioxidantes modérées et des propriétés anticandidosiques.

  1. Valor nutritivo de silagens de capim-elefante emurchecido ou com adição de farelo de cacau Nutritive value of elephantgrass silage wilted or with addition of cocoa meal

    Directory of Open Access Journals (Sweden)

    Gleidson Giordano Pinto de Carvalho

    2007-10-01

    Full Text Available O experimento foi conduzido para avaliar o valor nutritivo da silagem de capim-elefante produzida com o capim emurchecido ou adicionada de diferentes níveis de farelo de cacau. O capim-elefante foi colhido aos 50 dias de rebrota após o corte de uniformização e submetido aos seguintes tratamentos na ensilagem: capim-elefante emurchecido ao sol por 8 horas, e capim-elefante sem emurchecimento com 0, 7, 14, 21 e 28% de farelo de cacau (FC (% da matéria natural. Foram utilizadas quatro repetições por tratamento; o material foi acondicionado em silos de PVC com 0,15 m de diâmetro e 0,3 m de altura, adotando-se compactação de 500 kg/m³. A inclusão do farelo de cacau na ensilagem do capim-elefante mostrou-se eficiente em aumentar o teor de MS da silagem. A inclusão de FC no nível de 7% permitiu produção de silagem com teor de MS semelhante ao da silagem de capim emurchecido. As silagens com FC apresentaram maiores teores de NT, EE, lignina, NIDN e NIDA, no entanto, os teores de FDN, FDA CEL, HEM, cinzas e NDT e a DIVMS diminuíram com a adição de farelo de cacau. O NDT estimado para a silagem de capim emurchecido foi superior ao obtido nas demais silagens, com e sem farelo de cacau. Embora o FC tenha promovido redução da DIVMS, sua inclusão nos níveis de 7 e 14% proporcionou boa digestibilidade das silagens (acima de 60%. O emurchecimento do capim-elefante e a adição de FC podem ser alternativas para aumentar o teor de MS da silagem e garantir a produção de silagens de bom valor nutritivo.The experiment was carried out to evaluate the nutritive value of elephant grass silage wilted under the sun light for eight hours. Other treatments involved the same elephant grass without exposing to sun light but with addition of 0, 7, 14, 21, and 28% of cocoa meal (CM at the ensilage process. The PVC silos used in the experiment measured 0.15 m of diameter and 0.30 m of height. During the ensiling process the forage was compressed until

  2. Bispecific engineered antibody domains (nanoantibodies that interact noncompetitively with an HIV-1 neutralizing epitope and FcRn.

    Directory of Open Access Journals (Sweden)

    Rui Gong

    Full Text Available Libraries based on an isolated human immunoglobulin G1 (IgG1 constant domain 2 (CH2 have been previously diversified by random mutagenesis. However, native isolated CH2 is not very stable and the generation of many mutations could lead to an increase in immunogenicity. Recently, we demonstrated that engineering an additional disulfide bond and removing seven N-terminal residues results in an engineered antibody domain (eAd (m01s with highly increased stability and enhanced binding to human neonatal Fc receptor (FcRn (Gong et al, JBC, 2009 and 2011. We and others have also previously shown that grafting of the heavy chain complementarity region 3 (CDR-H3 (H3 onto cognate positions of the variable domain leads to highly diversified libraries from which a number of binders to various antigens have been selected. However, grafting of H3s to non-cognate positions in constant domains results in additional residues at the junctions of H3s and the CH2 framework. Here we describe a new method based on multi-step PCR that allows the precise replacement of loop FG (no changes in its flanking sequences by human H3s from another library. Using this method and limited mutagenesis of loops BC and DE we generated an eAd phage-displayed library. Panning of this library against an HIV-1 gp41 MPER peptide resulted in selection of a binder, m2a1, which neutralized HIV-1 isolates from different clades with modest activity and retained the m01s capability of binding to FcRn. This result provides a proof of concept that CH2-based antigen binders that also mimic to certain extent other functions of full-size antibodies (binding to FcRn can be generated; we have previously hypothesized that such binders can be made and coined the term nanoantibodies (nAbs. Further studies in animal models and in humans will show how useful nAbs could be as therapeutics and diagnostics.

  3. Diferentes matizes da idéia de solidariedade Different notions of solidarity

    Directory of Open Access Journals (Sweden)

    Vera Herweg Westphal

    2008-06-01

    Full Text Available Este artigo analisa os diferentes sentidos do termo solidariedade, identificando que não há uma abundância em teorias sobre este mesmo, mas é tema na sociologia, na filosofia e na política. Resgata a origem do termo quando tinha o sentido de unidade e de auxílio ao próximo. Contextualiza o termo na modernidade, apresentando seu uso no solidarismo francês, na doutrina social da igreja e do movimento de classe dos trabalhadores e na adoção da solidariedade como princípio de Estado, quando fornece suporte à formulação de políticas sociais. Por fim, aborda o termo na economia solidária, constatando seu o uso na forma lingüística de adjetivo, além de sua apresentação com a conotação de algo a ser construído e vivido entre iguais, quais sejam, entre os excluídos de esfera econômica dominante. Reflete acerca do uso do termo na economia solidária, tendo em vista sua construção social e histórica.This article analyzes the different meanings of the term solidarity. There are not many theories about this theme, although it is debated in the fields of sociology, philosophy and political science. The paper looks at the origin of the term when it had the meaning of unity and assistance to others. The term is considered in the context of modernity, presenting its use in the French solidarity movement, in the social doctrine of the church, in the working class movement and in the adoption of solidarity as a Government principle that guides social policies. Finally, it considers the term of solidarity economics, and finds that the use of the linguistic form of the adjective, in addition to its presentation with the connotation of something to be built and lived among equals, whoever they are, and among those excluded from the dominant economic sphere. It reflects on the use of the term solidarity economics, considering its social and historic construction.

  4. Proposição de um sistema de indicadores de desempenho para avaliação da qualidade dos serviços de esgotamento sanitário

    OpenAIRE

    Sperling,Tiago Lages von; Sperling,Marcos von

    2013-01-01

    Os indicadores de desempenho (ID) são amplamente utilizados como ferramenta de avaliação dos serviços de saneamento básico e o seu uso vem se tornando uma prática cada vez mais comum. Guiando-se por uma base norteadora de 699 indicadores de 11 entidades e organizações do Brasil e do mundo, a presente pesquisa propôs um sistema único de 46 ID específicos para o serviço de esgotamento sanitário. O sistema proposto foi baseado em u...

  5. Stocking density of “Pseudoplatystoma” spp. surubim reared in cages Densidade de estocagem do surubim "Pseudoplatystoma" spp. cultivado em tanque-rede

    Directory of Open Access Journals (Sweden)

    Daniel Vieira Crepaldi

    2009-03-01

    Full Text Available This work aimed to determine the effect of stocking density on the biomass production, final weight, feed conversion and survival rate of Pseudoplatystoma spp. surubim reared in floating net cages under three initial stocking densities. Twelve floating net cages located in a 47-ha reservoir were stocked with 35, 70 and 105 fish/m3 averaging 50 g from April to August 1999. At the end of the experimental period (105 days, the final average weights of the treatments were 197.4, 171.15, and 161.45 g, respectively. The highest final mean weight was reached at the lowest initial density. No significant effects of initial stocking density were observed on survival (95.97, 97.80 and 96.73%, respectively and feed conversion rates (1.49; 1.60 e 1.56; respectively. The final biomass of 87.93, 157.67, and 220.46 kg were affected by the initial stocking density. At higher storage densities, the individual weight gain decreased, but the final biomass increased significantly.Objetivou-se com este trabalho determinar o efeito da densidade de estocagem na produção, no ganho de peso, na conversão alimentar e na sobrevivência do surubim Pseudoplatystoma spp. cultivado em tanques-rede, sob três diferentes densidades de estocagem iniciais. Doze tanques-rede foram instalados em uma represa de 47 ha e estocados com 35, 70 e 105 alevinos de surubim/m3, com peso médio de 50g, no período de abril a agosto de 1999. Ao final de 105 dias de experimento, os pesos finais médios para os tratamentos foram 197,4; 171,15 e 161,45 g, respectivamente. O maior peso médio foi alcançado no tratamento de menor densidade. As sobrevivências (95,97; 97,80 e 96,73%, respectivamente e a conversão alimentar (1,49; 1,60 e 1,56:1, respectivamente não foram afetadas pela densidade de estocagem inicial. As biomassas finais foram 87,93; 157,67 e 220,46 kg, respectivamente, com efeito significativo da densidade de estocagem inicial. Com o aumento da densidade de estocagem, houve redu

  6. Oversættelsesperspektiver på idéers møde med praksis

    DEFF Research Database (Denmark)

    Scheuer, John Damm

    -netværksteoriens oversættelsesbegreb blevet søgt indarbejdet i ny-institutionel oversættelsesteori ? 2. Hvordan kan forståelsen af oversættelsesprocessen udvikles videre på et empirisk grundlag ? Det konstateres, at Latours definition og idémodellens socialkonstruktivistiske teoretisering af oversættelsesprocessen er blevet taget...

  7. Diltiazem como alternativa ao betabloqueador na angiotomografia de artérias coronárias

    Directory of Open Access Journals (Sweden)

    Carlos Eduardo Rochitte

    2012-08-01

    Full Text Available FUNDAMENTO: A redução da frequência cardíaca (FC na angiografia por tomografia das artérias coronarianas (ATCCor é fundamental para a qualidade de imagem. A eficácia dos bloqueadores de cálcio como alternativas para pacientes com contraindicações aos betabloqueadores não foi definida. OBJETIVOS: Comparar a eficácia na redução da FC e variabilidade RR do metoprolol e diltiazem na ATCCor. MÉTODOS: Estudo prospectivo, randomizado, aberto, incluiu pacientes com indicação clínica de ATCCor, em ritmo sinusal, com FC>70bpm e sem uso de agentes que interferissem com a FC. Cinquenta pacientes foram randomizados para grupos: metoprolol IV 5-15 mg ou até FC≤60 bpm(M, e diltiazem IV 0,25-0,60mg/kg ou até FC≤60 bpm (D. Pressão arterial (PA e FC foram aferidas na condição basal, 1min, 3min e 5min após agentes, na aquisição e após ATCCor. RESULTADOS: A redução da FC em valores absolutos foi maior no grupo M que no grupo D (1, 3, 5min, aquisição e pós-exame. A redução percentual da FC foi significativamente maior no grupo M apenas no 1 min e 3 min após início dos agentes. Não houve diferença no 5 min, durante a aquisição e após exame. A variabilidade RR percentual do grupo D foi estatisticamente menor do que a do grupo M durante a aquisição (variabilidade RR/ FC média da aquisição. Um único caso de BAV, 2:1 Mobitz I, revertido espontaneamente ocorreu (grupo D. CONCLUSÃO: Concluímos que o diltiazem é uma alternativa eficaz e segura aos betabloqueadores na redução da FC na realização de angiografia por tomografia computadorizada das artérias coronarianas. (Arq Bras Cardiol. 2012; [online].ahead print, PP.0-0

  8. Reward acts on the pFC to enhance distractor resistance of working memory representations.

    Science.gov (United States)

    Fallon, Sean James; Cools, Roshan

    2014-12-01

    Working memory and reward processing are often thought to be separate, unrelated processes. However, most daily activities involve integrating these two types of information, and the two processes rarely, if ever, occur in isolation. Here, we show that working memory and reward interact in a task-dependent manner and that this task-dependent interaction involves modulation of the pFC by the ventral striatum. Specifically, BOLD signal during gains relative to losses in the ventral striatum and pFC was associated not only with enhanced distractor resistance but also with impairment in the ability to update working memory representations. Furthermore, the effect of reward on working memory was accompanied by differential coupling between the ventral striatum and ignore-related regions in the pFC. Together, these data demonstrate that reward-related signals modulate the balance between cognitive stability and cognitive flexibility by altering functional coupling between the ventral striatum and the pFC.

  9. Microbiological quality of drinking water of urban and rural communities, Brazil Qualidade microbiológica de água potável de comunidades urbanas e rurais, Paraná

    Directory of Open Access Journals (Sweden)

    Giovani Nogueira

    2003-04-01

    Full Text Available OBJECTIVE: To evaluate the microbiological quality of treated and untreated water samples came from urban and rural communities and to examine the relationship between coliforms occurrence and average water temperature, and a comparison of the rainfall levels. METHODS: A sample of 3,073 untreated and treated (chlorinated water from taps (1,594, reservoir used to store treated water (1,033, spring water (96 and private well (350 collected for routine testing between 1996 and 1999 was analyzed by the multiple dilution tube methods used to detect the most probable number of total and fecal coliforms. These samples were obtained in the region of Maringá, state of Paraná, Brazil. RESULTS: The highest numbers water samples contaminated by TC (83% and FC (48% were found in the untreated water. TC and FC in samples taken from reservoirs used to store treated water was higher than that from taps midway along distribution lines. Among the treated water samples examined, coliform bacteria were found in 171 of the 1,033 sampling reservoirs. CONCLUSIONS: Insufficient treatment or regrowth is suggested by the observation that more than 17% of these treated potable water contained coliform. TC and FC positive samples appear to be similar and seasonally influenced in treated water. Two different periods must be considered for the occurrence of both TC and FC positive samples: (i a warm-weather period (September-March with high percentage of contaminated samples; and (ii cold-weather period (April-August were they are lower. Both TC and TF positive samples declined with the decreased of water temperature.OBJETIVO: Avaliar a qualidade microbiológica de amostras de água tratada e não-tratada proveniente de comunidades urbanas e rurais e examinar a relação entre ocorrência de coliformes e a média de temperatura da água, e uma comparação dos níveis de precipitação de chuva. MÉTODOS: No período de 1996 a 1999, foram analisadas 3.073 amostras de

  10. Functional characterization of the high affinity IgG Receptor : making heads and tails of FcγRI

    NARCIS (Netherlands)

    van der Poel, C.E.

    2011-01-01

    This thesis focuses on human FcγRI, a high affinity receptor for antibodies of the IgG isotype. IgG is the most abundant antibody type in blood and all currently FDA approved therapeutic antibodies are of the IgG isotype. FcγRI, a member of the activating Fcγ receptors, exists as a complex of a

  11. FlowIDS

    OpenAIRE

    Sabolčák, Peter

    2006-01-01

    FlowIDS is system which can detect some of the undesirable traffi c in computer networks (undesirable traffic could be also ie. virus activity or overloading of network) and mostly doing counteraction which are set by administrator. Information about data ows are provided by hardware of network infrastructure, eliminitaion of undesirable activity is done through changes in network hardware settings. Regarding the quantity of solution which are provided on market, I decided to focus on Cisco n...

  12. Hydrodynamic delivery of plasmid DNA encoding human FcγR-Ig dimers blocks immune-complex mediated inflammation in mice.

    Science.gov (United States)

    Shashidharamurthy, R; Machiah, D; Bozeman, E N; Srivatsan, S; Patel, J; Cho, A; Jacob, J; Selvaraj, P

    2012-09-01

    Therapeutic use and function of recombinant molecules can be studied by the expression of foreign genes in mice. In this study, we have expressed human Fcγ receptor-Ig fusion molecules (FcγR-Igs) in mice by administering FcγR-Ig plasmid DNAs hydrodynamically and compared their effectiveness with purified molecules in blocking immune-complex (IC)-mediated inflammation in mice. The concentration of hydrodynamically expressed FcγR-Igs (CD16A(F)-Ig, CD32A(R)-Ig and CD32A(H)-Ig) reached a maximum of 130 μg ml(-1) of blood within 24 h after plasmid DNA administration. The in vivo half-life of FcγR-Igs was found to be 9-16 days and western blot analysis showed that the FcγR-Igs were expressed as a homodimer. The hydrodynamically expressed FcγR-Igs blocked 50-80% of IC-mediated inflammation up to 3 days in a reverse passive Arthus reaction model. Comparative analysis with purified molecules showed that hydrodynamically expressed FcγR-Igs are more efficient than purified molecules in blocking IC-mediated inflammation and had a higher half-life. In summary, these results suggest that the administration of a plasmid vector with the FcγR-Ig gene can be used to study the consequences of blocking IC binding to FcγRs during the development of inflammatory diseases. This approach may have potential therapeutic value in treating IC-mediated inflammatory autoimmune diseases such as lupus, arthritis and autoimmune vasculitis.

  13. El rendimiento academcio de las matemáticas en las titulaciones de Economia y Empresa

    Directory of Open Access Journals (Sweden)

    Mª del Mar Guerrero Manzano

    2002-01-01

    Full Text Available La falta de base, destreza en el cálculo operacional, y la procedencia no idónea del curso de Matemáticas de COU, en los alumnos de la Diplomatura en Ciencias Empresariales (DCCEE y las Licenciaturas de Economía (LE y Administración y Dirección de Empresa (LADE, ocasionan un tapón de alumnos en las Matemáticas en primer curso, como se pone de manifiesto en la proliferación de grupos. Este tapón está determinado por la pauta de conducta que establecen los alumnos que por primera vez vienen a la universidad y que se hereda de un curso a otro. En el presente trabajo, tomando como fuente de información las actas de los exámenes finales de todas las asignaturas dede los alumnos de la primera convocatoria en DCCEE, LE y LADE, muestra los rasgos que caracterizan la forma de proceder de los alumnos que por primera vez ocupan puestos escolares. Una forma de evaluar esta pauta de conducta es mediante el comportamiento de los alumnos que ocupan los puestos escolares. Los resultados obtenidos muestran el papel de las Matemáticas en Económicas, propiciado fundamentalmente por el alto nivel de absentismo en los exámenes finales.

  14. Autoantibody-induced internalization of CNS AQP4 water channel and EAAT2 glutamate transporter requires astrocytic Fc receptor.

    Science.gov (United States)

    Hinson, Shannon R; Clift, Ian C; Luo, Ningling; Kryzer, Thomas J; Lennon, Vanda A

    2017-05-23

    Aquaporin-4 (AQP4) water channel-specific IgG distinguishes neuromyelitis optica (NMO) from multiple sclerosis and causes characteristic immunopathology in which central nervous system (CNS) demyelination is secondary. Early events initiating the pathophysiological outcomes of IgG binding to astrocytic AQP4 are poorly understood. CNS lesions reflect events documented in vitro following IgG interaction with AQP4: AQP4 internalization, attenuated glutamate uptake, intramyelinic edema, interleukin-6 release, complement activation, inflammatory cell recruitment, and demyelination. Here, we demonstrate that AQP4 internalization requires AQP4-bound IgG to engage an astrocytic Fcγ receptor (FcγR). IgG-lacking Fc redistributes AQP4 within the plasma membrane and induces interleukin-6 release. However, AQP4 endocytosis requires an activating FcγR's gamma subunit and involves astrocytic membrane loss of an inhibitory FcγR, CD32B. Interaction of the IgG-AQP4 complex with FcγRs triggers coendocytosis of the excitatory amino acid transporter 2 (EAAT2). Requirement of FcγR engagement for internalization of two astrocytic membrane proteins critical to CNS homeostasis identifies a complement-independent, upstream target for potential early therapeutic intervention in NMO.

  15. Prueba de campo específica de valoración de la resistencia en tenis: respuesta cardiaca y efectividad técnica en jugadores de competición

    Directory of Open Access Journals (Sweden)

    Ernest Baiget

    2008-09-01

    Full Text Available Aunque la resistencia específica del jugador tiene una influencia directa sobre el rendimiento en el tenis, un deporte intermitente de larga duración, las pruebas utilizadas para valorarla no suelen incluir tareas motrices próximas a situaciones de juego reales y pueden ser consideradas de baja especificidad. El objetivo de este estudio es desarrollar una prueba de campo de valoración de la resistencia específica en tenis (Specific Endurance Tennis Test, SET-Test, analizando el comportamiento de la frecuencia cardiaca (FC y de parámetros de efectividad técnica (ET, con el fin de averiguar una posible relación entre ambos parámetros y de éstos con el rendimiento deportivo en jugadores de competición. Participaron siete tenistas masculinos, a los cuales les fue administrada una prueba triangular, progresiva, continua y de intensidad máxima conducida por una máquina lanzapelotas, durante la cual se registró la FC y, al mismo tiempo, parámetros objetivos de ET (precisión y potencia mediante el cálculo de porcentaje de aciertos y errores. Se observa un punto de deflexión de la FC (PDFC en un 86% de los sujetos estudiados, previo o coincidente con una disminución de la ET (punto de deflexión de la eficiencia técnica, PDET. Estos dos puntos analizados de forma simultánea a lo largo de la prueba se muestran relacionados con el rendimiento competitivo de los jugadores estudiados. Se concluye que la prueba propuesta puede ser un método específico y válido para evaluar la resistencia específica y la condición aeróbica en tenistas, aunque son necesarios más estudios con el fin de confirmar las hipótesis planteadas y la validez externa de la prueba.

  16. FC-TLBO: fully constrained meta-heuristic algorithm for abundance ...

    Indian Academy of Sciences (India)

    Omprakash Tembhurne

    hyperspectral unmixing; meta-heuristic approach; teaching-learning-based optimisation (TLBO). 1. ... area of research due to its real-time applications. Satellite .... describes the detailed methodology of proposed FC-TLBO. Section 4 contains ...

  17. Human Endogenous Retrovirus HERV-Fc1 Association with Multiple Sclerosis Susceptibility: A Meta-Analysis

    Science.gov (United States)

    García-Montojo, Marta; Alcina, Antonio; Fedetz, María; Alloza, Iraide; Astobiza, Ianire; Leyva, Laura; Fernández, Oscar; Izquierdo, Guillermo; Antigüedad, Alfredo; Arroyo, Rafael; Álvarez-Lafuente, Roberto; Vandenbroeck, Koen; Matesanz, Fuencisla; Urcelay, Elena

    2014-01-01

    Background Human endogenous retroviruses (HERVs) are repetitive sequences derived from ancestral germ-line infections by exogenous retroviruses and different HERV families have been integrated in the genome. HERV-Fc1 in chromosome X has been previously associated with multiple sclerosis (MS) in Northern European populations. Additionally, HERV-Fc1 RNA levels of expression have been found increased in plasma of MS patients with active disease. Considering the North-South latitude gradient in MS prevalence, we aimed to evaluate the role of HERV-Fc1on MS risk in three independent Spanish cohorts. Methods A single nucleotide polymorphism near HERV-Fc1, rs391745, was genotyped by Taqman chemistry in a total of 2473 MS patients and 3031 ethnically matched controls, consecutively recruited from: Northern (569 patients and 980 controls), Central (883 patients and 692 controls) and Southern (1021 patients and 1359 controls) Spain. Our results were pooled in a meta-analysis with previously published data. Results Significant associations of the HERV-Fc1 polymorphism with MS were observed in two Spanish cohorts and the combined meta-analysis with previous data yielded a significant association [rs391745 C-allele carriers: pM-H = 0.0005; ORM-H (95% CI) = 1.27 (1.11–1.45)]. Concordantly to previous findings, when the analysis was restricted to relapsing remitting and secondary progressive MS samples, a slight enhancement in the strength of the association was observed [pM-H = 0.0003, ORM-H (95% CI) = 1.32 (1.14–1.53)]. Conclusion Association of the HERV-Fc1 polymorphism rs391745 with bout-onset MS susceptibility was confirmed in Southern European cohorts. PMID:24594754

  18. Imaging of injured and atherosclerotic arteries in mice using fluorescence-labeled glycoprotein VI-Fc

    Energy Technology Data Exchange (ETDEWEB)

    Bigalke, Boris, E-mail: boris.bigalke@med.uni-tuebingen.de [Medizinische Klinik III, Kardiologie und Kreislauferkrankungen, Eberhard-Karls-Universitaet Tuebingen (Germany); Division of Imaging Sciences, St Thomas' Hospital, King' s College London (United Kingdom); Pohlmeyer, Ilka; Schoenberger, Tanja [Medizinische Klinik III, Kardiologie und Kreislauferkrankungen, Eberhard-Karls-Universitaet Tuebingen (Germany); Griessinger, Christoph M. [Labor fuer Praeklinische Bildgebung und Bildgebungstechnologie der Werner-Siemens-Stiftung, Radiologische Klinik, Eberhard-Karls-Universitaet Tuebingen (Germany); Ungerer, Martin [Corimmun GmbH, Martinsried (Germany); Botnar, Rene M. [Division of Imaging Sciences, St Thomas' Hospital, King' s College London (United Kingdom); Pichler, Bernd J. [Labor fuer Praeklinische Bildgebung und Bildgebungstechnologie der Werner-Siemens-Stiftung, Radiologische Klinik, Eberhard-Karls-Universitaet Tuebingen (Germany); Gawaz, Meinrad [Medizinische Klinik III, Kardiologie und Kreislauferkrankungen, Eberhard-Karls-Universitaet Tuebingen (Germany)

    2011-08-15

    Purpose: To assess endothelial injury and repair using fluorescence-labeled glycoprotein VI (GPVI)-Fc in a murine model. Materials and methods: Three 4-week-old male ApoE-deficient (ApoE{sup -/-})-mice were fed with a 1.25% cholesterol diet over 16 weeks and compared to three wild type (WT) C57BL/6J-mice in a wire-induced vascular injury model. Another group of WT mice (n = 10) were mechanically injured by carotid ligation. Fluorescence-labeled GPVI-Fc (150 {mu}g/mouse) was administered and assessed by optical imaging 24 h after injury and compared to another group (n = 3) which was injected two days after injury and sacrificed another day later. Results: After denudation, all injured carotids of WT mice showed a higher mean fluorescence signal than the corresponding intact carotids of the same animals (48.4 {+-} 18.9 vs. 10.4 {+-} 1.0; P = 0.028). Injection of unlabeled GPVI-Fc 20 h and 3 h before injecting GPVI-Fc-FITC significantly reduced the fluorescence signal in injured carotids to 14.6 {+-} 4.6, while intact carotids showed a signal of 9.2 {+-} 1.1; P = 0.046. Ligation injury resulted with an increased GPVI-Fc-binding to injured carotids compared to intact carotids (31.53 {+-} 6.18 vs. 16.48 {+-} 5.15; P = 0.039). Three days after injury and 24 h after GPVI-Fc-FITC injection, differences between intact and injured carotids have vanished (12.51 {+-} 2.76 vs. 14.76 {+-} 1.59; P = 0.519). Conclusions: A GPVI-based plaque imaging system could help to identify vascular lesions and to take a precautionary measure as necessary.

  19. NEW ROLES FOR FC RECEPTORS IN NEURODEGENERATION-THE IMPACT ON IMMUNOTHERAPY FOR ALZHEIMER’S DISEASE

    Directory of Open Access Journals (Sweden)

    James P. Fuller

    2014-08-01

    Full Text Available There are an estimated 18 million Alzheimer’s disease (AD sufferers worldwide and with no disease modifying treatment currently available, development of new therapies represents an enormous unmet clinical need. AD is characterised by episodic memory loss followed by severe cognitive decline and is associated with many neuropathological changes. AD is characterised by deposits of amyloid beta (Aβ, neurofibrillary tangles, and neuroinflammation. Active immunisation or passive immunisation against Aβ leads to the clearance of deposits in transgenic mice expressing human Aβ. This clearance is associated with reversal of associated cognitive deficits, but these results have failed to translate to humans, with both active and passive immunotherapy failing to improve memory loss. One explanation for these observations is that certain anti-Aβ antibodies mediate damage to the cerebral vasculature limiting the top dose and potentially reducing efficacy. Fc gamma receptors (Fcγ are a family of immunoglobulin like receptors which bind to the Fc portion of IgG, and mediate the response of effector cells to immune complexes. Data from both mouse and human studies suggest that cross-linking Fc receptors by therapeutic antibodies and the subsequent pro-inflammatory response mediates the vascular side effects seen following immunotherapy. Increasing evidence is emerging that Fc receptor expression on CNS resident cells, including microglia and neurons, is increased during aging and functionally involved in the pathogenesis of age-related neurodegenerative diseases. We propose that increased expression and ligation of Fc receptors in the CNS, either by endogenous IgG or therapeutic antibodies, has the potential to induce vascular damage and exacerbate neurodegeneration. To produce safe and effective immunotherapies for AD and other neurodegenerative diseases it will be vital to understand the role of Fc receptors in the healthy and diseased brain.

  20. Cleavage of the interchain disulfide bonds in rituximab increases its affinity for FcγRIIIA.

    Science.gov (United States)

    Suzuki, Mami; Yamanoi, Ayaka; Machino, Yusuke; Kobayashi, Eiji; Fukuchi, Kaori; Tsukimoto, Mitsutoshi; Kojima, Shuji; Kohroki, Junya; Akimoto, Kazunori; Masuho, Yasuhiko

    2013-07-05

    The Fc region of human IgG1 mediates effector function via binding to Fcγ receptors and complement activation. The H and L chains of IgG1 antibodies are joined by four interchain disulfide bonds. In this study, these bonds within the therapeutic IgG1 rituximab (RTX) were cleaved either by mild reduction followed by alkylation or by mild S-sulfonation; consequently, two modified RTXs - A-RTX (alkylated) and S-RTX (S-sulfonated) - were formed, and both were almost as potent as unmodified RTX when binding CD20 antigen. Unexpectedly, each modified RTX had a higher binding affinity for FcγRIIIA (CD16A) than did unmodified RTX. However, S-RTX and A-RTX were each less potent than RTX in an assay of antibody-dependent cellular cytotoxicity (ADCC). In this ADCC assay, each modified RTX showed decreased secretion of granzyme B, but no change in perforin secretion, from effector cells. These results provide significant information on the structures within IgG1 that are involved in binding FcγRIIIA, and they may be useful in the development of therapeutic antagonists for FcγRIIIA. Copyright © 2013 Elsevier Inc. All rights reserved.