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Sample records for ug cs ind

  1. IND - THE IND DECISION TREE PACKAGE

    Science.gov (United States)

    Buntine, W.

    1994-01-01

    A common approach to supervised classification and prediction in artificial intelligence and statistical pattern recognition is the use of decision trees. A tree is "grown" from data using a recursive partitioning algorithm to create a tree which has good prediction of classes on new data. Standard algorithms are CART (by Breiman Friedman, Olshen and Stone) and ID3 and its successor C4 (by Quinlan). As well as reimplementing parts of these algorithms and offering experimental control suites, IND also introduces Bayesian and MML methods and more sophisticated search in growing trees. These produce more accurate class probability estimates that are important in applications like diagnosis. IND is applicable to most data sets consisting of independent instances, each described by a fixed length vector of attribute values. An attribute value may be a number, one of a set of attribute specific symbols, or it may be omitted. One of the attributes is delegated the "target" and IND grows trees to predict the target. Prediction can then be done on new data or the decision tree printed out for inspection. IND provides a range of features and styles with convenience for the casual user as well as fine-tuning for the advanced user or those interested in research. IND can be operated in a CART-like mode (but without regression trees, surrogate splits or multivariate splits), and in a mode like the early version of C4. Advanced features allow more extensive search, interactive control and display of tree growing, and Bayesian and MML algorithms for tree pruning and smoothing. These often produce more accurate class probability estimates at the leaves. IND also comes with a comprehensive experimental control suite. IND consists of four basic kinds of routines: data manipulation routines, tree generation routines, tree testing routines, and tree display routines. The data manipulation routines are used to partition a single large data set into smaller training and test sets. The

  2. 46 CFR 54.01-35 - Corrosion (modifies UG- 25).

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Corrosion (modifies UG- 25). 54.01-35 Section 54.01-35 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) MARINE ENGINEERING PRESSURE VESSELS General Requirements § 54.01-35 Corrosion (modifies UG- 25). (a) Vessels or portions of vessels subject to...

  3. Challenges to and proposals for underground gas storage (UGS business in China

    Directory of Open Access Journals (Sweden)

    Gangxiong Zhang

    2017-05-01

    Full Text Available Underground gas storage (UGS is one of the major storage and peak-shaving means in the world among numerous storage ways via gas fields, small-scale LNG, etc. With the rapid development of natural gas industry in China, the seasonal peak-shaving issues are increasingly prominent, so how to achieve sustainable development of UGS business has become a major problem at present. In view of this, we studied the present status and trend of UGS development abroad and analyzed the following challenges encountered by UGS in China. (1 UGS construction falls behind the world and peak-shaving capacity is insufficient. (2 There is lack of quality gas sources for storage and the complicated geological conditions make the cost of UGS construction high. (3 UGS construction is still at the preliminary stage, so experience is not enough in safety and scientific operation and management. (4 UGS construction, management and operation are not unified as a whole, so its maximum efficiency fails to be exerted. (5 The economic benefit of UGS is difficult to be shown without independent cost accounting. Based on the experience of other countries, some proposals were put forward on UGS development under the actual present situation: to strengthen strategic UGS layout, intensify storage site screening in key areas and steadily promote UGS construction; to establish professional UGS technical and management teams and intensify the research of key technologies; and to set up a complete and rationally-distributed UGS construction, operation and management system.

  4. ASDEX-UG. ASDEX upgrade project proposal. Phase 2

    International Nuclear Information System (INIS)

    1983-05-01

    The objective of ASDEX UG is to investigate the problems relating to tokamak divertor physics and the boundary layer of hot plasmas which cannot be covered otherwise by either ASDEX or other EUROPEAN tokamaks, including JET, but whose investigation is indispensable for NET and INTOR. The configuration of ASDEX UG is changed as compared with ASDEX due to the requirement that all poloidal field coils are located outside the toroidal field magnet. This leads to a highly elongated D-shaped plasma with an ''open'' divertor, which does not allow to close the divertor chamber by such simple means as in ASDEX. In section 2, the aims of ASDEX UG are repeated briefly and the essential features and parameters of the tokamak system are summarized. The summary includes an overview of the tokamak design, the time schedule of design and construction concluding with the estimated investment cost and manpower required. In section 3 the tokamak system components are treated. The circuits and energy supply for the different electrical components are described in section 4. Auxiliary heating requirements and methods are discussed in section 5. Section 6 presents a survey over the periphery of the tokamak system including preparation of the building and radiation shielding. Section 7 outlines the physical programme. Section 8 is devoted to diagnostics. Finally, the principal concepts for control, data acquisition and handling are outlined in section 9. (orig./AH)

  5. Noble magnetic barriers in the ASDEX UG tokamak

    Science.gov (United States)

    Ali, Halima; Punjabi, Alkesh; Vazquez, Justin

    2010-02-01

    The second-order perturbation method of creating invariant tori inside chaos in Hamiltonian systems (Ali, H.; Punjabi, A. Plasma Phys. Contr. F. 2007, 49, 1565-1582) is applied to the axially symmetric divertor experiment upgrade (ASDEX UG) tokamak to build noble irrational magnetic barriers inside chaos created by resonant magnetic perturbations (m, n)=(3, 2)+(4, 3), with m and n the poloidal and toroidal mode numbers of the Fourier expansion of the magnetic perturbation. The radial dependence of the Fourier modes is ignored. The modes are considered to be locked and have the same amplitude δ. A symplectic mathematical mapping in magnetic coordinates is used to integrate magnetic field line trajectories in the ASDEX UG. Tori with noble irrational rotational transform are the last ones to be destroyed by perturbation in Hamiltonian systems. For this reason, noble irrational magnetic barriers are built inside chaos, and the strongest noble irrational barrier is identified. Three candidate locations for the strongest noble barrier in ASDEX UG are selected. All three candidate locations are chosen to be roughly midway between the resonant rational surfaces ψ32 and ψ43. ψ is the magnetic coordinate of the flux surface. The three candidate surfaces are the noble irrational surfaces close to the surface with q value that is a mediant of q=3/2 and 4/3, q value of the physical midpoint of the two resonant surfaces, and the q value of the surface where the islands of the two perturbing modes just overlap. These q values of the candidate surfaces are denoted by q MED, q MID, and q OVERLAP. The strongest noble barrier close to q MED has the continued fraction representation (CFR) [1;2,2,1∞] and exists for δ≤2.6599×10-4; the strongest noble barrier close to q MID has CFR [1;2,2,2,1∞] and exists for δ≤4.6311×10-4; and the strongest noble barrier close to q OVERLAP has CFR [1;2,2,6,2,1∞] and exists for δ≤1.367770×10-4. From these results, the strongest

  6. Applications of Universal Grammar (UG) in the ESL/EFL Classroom

    Science.gov (United States)

    Kirkwold, Lorne O.

    2007-01-01

    The article proposes Stern's (1983) framework for classifying issues related to instruction in order to ascertain the relevance of Universal Grammar (UG) in the ESL/EFL classroom. Discussed in this article, particularly as UG pertains to them, are issues related to: (a) L1 transfer; (b) teaching rules and giving error correction versus presenting…

  7. Analytical Review of Universal Grammar (UG) Approach on Second Language Acquisition (SLA)

    Science.gov (United States)

    Irwandy

    2015-01-01

    The aim of this paper is to explore the analysis of Universal Grammar (UG) approach on Second Language Acquisition (SLA). This paper is significant as the sources for teacher or researcher of the second language since this elaboration is deeply focusing on the use of UG on SLA. The method used in this academic writing is inductive method of…

  8. 46 CFR 54.10-10 - Standard hydrostatic test (modifies UG-99).

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Standard hydrostatic test (modifies UG-99). 54.10-10... PRESSURE VESSELS Inspection, Reports, and Stamping § 54.10-10 Standard hydrostatic test (modifies UG-99). (a) All pressure vessels shall satisfactorily pass the hydrostatic test prescribed by this section...

  9. Mapping resistance to the Ug99 race group of the stem rust pathogen in a spring wheat landrace.

    Science.gov (United States)

    Babiker, E M; Gordon, T C; Chao, S; Newcomb, M; Rouse, M N; Jin, Y; Wanyera, R; Acevedo, M; Brown-Guedira, G; Williamson, S; Bonman, J M

    2015-04-01

    A new gene for Ug99 resistance from wheat landrace PI 374670 was detected on the long arm of chromosome 7A. Wheat landrace PI 374670 has seedling and field resistance to stem rust caused by Puccinia graminis f. sp tritici Eriks. & E. Henn (Pgt) race TTKSK. To elucidate the inheritance of resistance, 216 BC1F2 families, 192 double haploid (DH) lines, and 185 recombinant inbred lines (RILs) were developed by crossing PI 374670 and the susceptible line LMPG-6. The parents and progeny were evaluated for seedling resistance to Pgt races TTKSK, MCCFC, and TPMKC. The DH lines were tested in field stem rust nurseries in Kenya and Ethiopia. The DH lines were genotyped with the 90K wheat iSelect SNP genotyping platform. Goodness-of-fit tests indicated that a single dominant gene in PI 374670 conditioned seedling resistance to the three Pgt races. The seedling resistance locus mapped to the long arm of chromosome 7A and this result was verified in the RIL population screened with the flanking SNP markers using KASP assays. In the same region, a major QTL for field resistance was detected in a 7.7 cM interval and explained 34-54 and 29-36% of the variation in Kenya and Ethiopia, respectively. Results from tests with specific Pgt races and the csIH81 marker showed that the resistance was not due to Sr22. Thus, a new stem rust resistance gene or allele, either closely linked or allelic to Sr15, is responsible for the seedling and field resistance of PI 374670 to Ug99.

  10. CS Informativeness Governs CS-US Associability

    Science.gov (United States)

    Ward, Ryan D.; Gallistel, C. R.; Jensen, Greg; Richards, Vanessa L.; Fairhurst, Stephen; Balsam, Peter D

    2012-01-01

    In a conditioning protocol, the onset of the conditioned stimulus (CS) provides information about when to expect reinforcement (the US). There are two sources of information from the CS in a delay conditioning paradigm in which the CS-US interval is fixed. The first depends on the informativeness, the degree to which CS onset reduces the average expected time to onset of the next US. The second depends only on how precisely a subject can represent a fixed-duration interval (the temporal Weber fraction). In three experiments with mice, we tested the differential impact of these two sources of information on rate of acquisition of conditioned responding (CS-US associability). In Experiment 1, we show that associability (the inverse of trials to acquisition) increases in proportion to informativeness. In Experiment 2, we show that fixing the duration of the US-US interval or the CS-US interval or both has no effect on associability. In Experiment 3, we equated the increase in information produced by varying the C̅/T̅ ratio with the increase produced by fixing the duration of the CS-US interval. Associability increased with increased informativeness, but, as in Experiment 2, fixing the CS-US duration had no effect on associability. These results are consistent with the view that CS-US associability depends on the increased rate of reward signaled by CS onset. The results also provide further evidence that conditioned responding is temporally controlled when it emerges. PMID:22468633

  11. Le cas de l'Inde

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

    pwust

    approche de l'Inde en matière de collaboration internationale. Enfin, la cinquième .... L'Inde n'adhère pas non plus à une définition uniforme de l'aide au développement. Ce que ..... commerce (OMC) et défendu l'inviolabilité du droit international.

  12. En ny flugt ind i skoven

    DEFF Research Database (Denmark)

    Haarder, Jon Helt

    2008-01-01

    Thure Erik Lund: IND. (Inn). Oversat fra norsk af Sara Koch. 192 sider, 199 kr. Gyldendal. UDKOMMER I DAG. Fire stjerner......Thure Erik Lund: IND. (Inn). Oversat fra norsk af Sara Koch. 192 sider, 199 kr. Gyldendal. UDKOMMER I DAG. Fire stjerner...

  13. Indflydelse. Hvide evangelister er inde i varmen

    DEFF Research Database (Denmark)

    Olsen, Gorm Rye

    2016-01-01

    ANALYSE De hvide evangelister bar Trump ind i Det Hvide Hus. Det vil få stor betydning for USA's udenrigspolitik.......ANALYSE De hvide evangelister bar Trump ind i Det Hvide Hus. Det vil få stor betydning for USA's udenrigspolitik....

  14. Putting Ug99 on the map: An update on current and future monitoring

    DEFF Research Database (Denmark)

    Hodson, D P; Nazari, K; Park, R F

    2011-01-01

    Detection of stem rust race TTKSK (Ug99) from Uganda in 1998/99 highlighted not only the extremely high vulnerability of the global wheat crop to stem rust but also a lack of adequate global systems to monitor such a threat. Progress in the development and expansion of the Global Cereal Rust...... Monitoring System (GCRMS) is described. The current situation regarding the Ug99 lineage of races is outlined and the potential for expansion into important wheat areas is considered. The GCRMS has successfully tracked the spread and changes that are occurring within the Ug99 lineage and is now well...... capacity for race analysis is seen to be critical and integration of the Global Rust Reference Centre into the stem rust monitoring network is seen as a positive development. The current acute situation with severe epidemics of stripe rust in many countries indicates a clear need for more effective global...

  15. Creation of second order magnetic barrier inside chaos created by NTMs in the ASDEX UG

    Science.gov (United States)

    Ali, Halima; Punjabi, Alkesh

    2012-10-01

    Understanding and stabilization of neoclassical tearing modes (NTM) in tokamaks is an important problem. For low temperature plasmas, tearing modes are believed to be mainly driven by current density gradient. For collisionless plasmas, even when plasma is stable to classical tearing modes, helical reduction in bootstrap current in O-point of an island can destabilize NTMs when an initial island is seeded by other global MHD instabilities or when microturbulence triggers the transition from a linear to nonlinear instability. The onset of NTMs leads to the most serious beta limit in ASDEX UG tokamak [O. Gubner et al 2005 NF 39 1321]. The important NTMs in the ASDDEX UG are (m,n)=(3,2)+(4,3)+(1,1). Realistic parameterization of these NTMs and the safety factor in ASDEX UG are given in [O. Dumbrajs et al 2005 POP 12 1107004]. We use a symplectic map in magnetic coordinates for the ASDEX UG to integrate field lines in presence of the NTMs. We add a second order control term [H. Ali and A. Punjabi 2007 PPCF 49 1565] to this ASDEX UG field line Hamiltonian to create an invariant magnetic surface inside the chaos generated by the NTMs. The relative strength, robustness, and resilience of this barrier are studied to ascertain the most desirable noble barrier in the ASDEX UG with NTMs. We present preliminary results of this work, and discuss its implications with regard to magnetic transport barriers for increasing strength of magnetic perturbations. This work is supported by the grants DE-FG02-01ER54624 and DE-FG02-04ER54793.

  16. Targeted introgression of stem rust Ug99 resistance from wheatgrasses into pasta and bread wheat

    Science.gov (United States)

    In the past 50 years, a number of stem rust resistance (Sr) genes have been transferred from several wheat-related grasses into durum (i.e. pasta) and bread wheat through chromosome translocations and additions. To utilize these genes for controlling the Ug99 races of the stem rust pathogen, we ini...

  17. Improving CS regulations.

    Energy Technology Data Exchange (ETDEWEB)

    Nesse, R.J.; Scheer, R.M.; Marasco, A.L.; Furey, R.

    1980-10-01

    President Carter issued Executive Order 12044 (3/28/78) that required all Federal agencies to distinguish between significant and insignificant regulations, and to determine whether a regulation will result in major impacts. This study gathered information on the impact of the order and the guidelines on the Office of Conservation and Solar Energy (CS) regulatory practices, investigated problems encountered by the CS staff when implementing the order and guidelines, and recommended solutions to resolve these problems. Major tasks accomplished and discussed are: (1) legislation, Executive Orders, and DOE Memoranda concerning Federal administrative procedures relevant to the development and analysis of regulations within CS reviewed; (2) relevant DOE Orders and Memoranda analyzed and key DOE and CS staff interviewed in order to accurately describe the current CS regulatory process; (3) DOE staff from the Office of the General Counsel, the Office of Policy and Evaluation, the Office of the Environment, and the Office of the Secretary interviewed to explore issues and problems encountered with current CS regulatory practices; (4) the regulatory processes at five other Federal agencies reviewed in order to see how other agencies have approached the regulatory process, dealt with specific regulatory problems, and responded to the Executive Order; and (5) based on the results of the preceding four tasks, recommendations for potential solutions to the CS regulatory problems developed. (MCW)

  18. CS Bond formation by

    Indian Academy of Sciences (India)

    2017-02-02

    Feb 2, 2017 ... a thiol substituent at position-2 of the quinazoline ring. ... coupling reactions represent great contribution to the recent growth of organic synthesis.2 ... Difficulties in C-S ...... Experimental Advances (Amsterdam: Elsevier) 19; (b).

  19. Inde | Page 35 | CRDI - Centre de recherches pour le ...

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

    Accueil · Asie du sud. Inde. Inde. Read more about Mondialisation de l'innovation : manifestation, déterminants et conséquences dans les économies émergentes de la Chine et de l'Inde. Langue French. Read more about Shifting Cultivation : Promoting Innovative Policy and Development Options in the Eastern Himalayas.

  20. Inde | Page 52 | CRDI - Centre de recherches pour le ...

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

    Accueil · Asie du sud. Inde. Inde. Read more about Genetically Modified Organisms : Public Knowledge, Attitudes and Perceptions (India). Langue English. Read more about Connaissances, attitudes et perceptions de la population à l'égard des OGM en Inde. Langue French. Read more about Toward Détente in Media ...

  1. Resistance to stem rust Ug99 in six bread wheat cultivars maps to chromosome 6DS.

    Science.gov (United States)

    Lopez-Vera, Eric E; Nelson, Sarah; Singh, Ravi P; Basnet, Bhoja R; Haley, Scott D; Bhavani, Sridhar; Huerta-Espino, Julio; Xoconostle-Cazares, Beatriz G; Ruiz-Medrano, Roberto; Rouse, Matthew N; Singh, Sukhwinder

    2014-01-01

    Identified SSR markers ( Xcfd49 and Xbarc183 ) linked with stem rust resistance for efficient use in marker-assisted selection and stacking of resistance genes in wheat breeding programs. More than 80 % of the worldwide wheat (Triticum aestivum L.) area is currently sown with varieties susceptible to the Ug99 race group of stem rust fungus. However, wheat lines Niini, Tinkio, Coni, Pfunye, Blouk, and Ripper have demonstrated Ug99 resistance at the seedling and adult plant stages. We mapped stem rust resistance in populations derived from crosses of a susceptible parent with each of the resistant lines. The segregation of resistance in each population indicated the presence of a single gene. The resistance gene in Niini mapped to short arm of chromosome 6D and was flanked by SSR markers Xcfd49 at distances of 3.9 cM proximal and Xbarc183 8.4 cM distal, respectively. The chromosome location of this resistance was validated in three other populations: PBW343/Coni, PBW343/Tinkio, and Cacuke/Pfunye. Resistance initially postulated to be conferred by the SrTmp gene in Blouk and Ripper was also linked to Xcfd49 and Xbarc183 on 6DS, but it was mapped proximal to Xbarc183 at a similar position to previously mapped genes Sr42 and SrCad. Based on the variation in diagnostic marker alleles, it is possible that Niini and Pfunye may carry different resistance genes/alleles. Further studies are needed to determine the allelic relationships between various genes located on chromosome arm 6DS. Our results provide valuable molecular marker and genetic information for developing Ug99 resistant wheat varieties in diverse germplasm and using these markers to tag the resistance genes in wheat breeding.

  2. Geology of the U12n.07 UG-3 drill hole, area 12, Nevada Test Site

    International Nuclear Information System (INIS)

    Terry, S.S.; Cunningham, M.J.

    1975-11-01

    The U12n.07 UG-3 horizontal drill hole, located near the eastern edge of the center of Rainier Mesa, Nevada Test Site, was drilled to a total depth of 809 m (2,653 ft). This hole was drilled to further evaluate the tunnel-level stratigraph, and structure southwest of the U12n tunnel complex. The drill hole is collared in the middle of Tertiary tunnel bed 3A and penetrates upsection through tunnel beds 3 and 4 and terminates in subunit 4K, all of Tertiary age. Stratigraphy, structure, engineering geology, and physical properties and their relation to tunnel engineering are discussed

  3. Problems of Gas Pressure Build-up in Casing String of UGS and Gas Wells

    Directory of Open Access Journals (Sweden)

    Peter Sovius

    2006-10-01

    Full Text Available This paper consists of three basic parts. The opening part is a brief description of problems associated with the secondary untightness of UGS wells (Underground Gas Storages and gas wells generally.The main part of the paper is composed of some cases that we have met in our company. Solution proposals of various cases are also supplied in this part. Separate problem situations are described in terms of finding out an untight point and also a testing result and consequential removing of untightness.The conclusion includes knowledge summary that were taken by solution of complicatedsituations connected with well non-hermeticity.

  4. Lengua indígena: lengua extranjera en tierra indígena

    Directory of Open Access Journals (Sweden)

    Wilmar da Rocha D'Angelis

    2009-07-01

    Full Text Available A pesar de las reiteradas manifestaciones y instrucciones al respecto del valor de las lenguas indígenas y sobre la importancia de la enseñanza en lengua materna, sea en documentos oficiales del gobierno brasileño, sea en artículos, declaraciones y propuestas firmadas por maestros indígenas o por pesquisadores no indígenas, el hecho es que en la mayor parte de los programas educacionales en comunidades indígenas de Brasil el espacio destinado a la lengua autóctona es muy semejante a lo que acostumbramos encontrar para una lengua extranjera en la escuela nacional. Como a menudo los maestros indígenas demuestran tener convicción en la necesidad de valorizar y fortalecer sus lenguas propias, y son - ellos mismos - hablantes nativos de sus lenguas, las preguntas que se plantean son: ¿Por cuales razones las escuelas indígenas siguen restringiendo el espacio de la lengua autóctona? ¿Es posible que los maestros indígenas de hecho estén creyentes de las potencialidades y en el futuro de su lengua materna? Y, por fin, ¿Serán las presiones de la burocracia o de maestros no-indígenas en la escuela indígena lo que impide la experimentación de programas auténticamente bilingües?.Despite the repeated demonstrations and instructions about the value of indigenous languages and the importance of education in mother tongue, whether in official documents of the Brazilian government, whether in articles, statements and proposals signed by indigenous teachers or non-indigenous researchers, the fact is that in the most educational programs in indigenous communities in Brazil the space for the native language is very similar to that usually found for a foreign language in the national school. As indigenous teachers often prove to have belief in the need to value and strengthen their own languages, and are - themselves - native speakers of that, the questions that arise are: Why reasons indigenous schools continue to restrict the space of the

  5. Indústria cultural e meio rural

    Directory of Open Access Journals (Sweden)

    VALDIR CASTRO OLIVEIRA

    2012-06-01

    Full Text Available Resumo – Este estudo discute de que maneira a indústria cultural interpela, nomeia e ressignifica as práticas sociais, políticas e culturais do meio rural através de contínuos deslocamentos semânticos dos quais emerge um rural idealizado e sem contradições. A nossa hipótese é a de que estas práticas discursivas são hegemonicamente determinadas e pautadas pelos interesses diretos ou conectados ao agronegócio e pelas suas potencialidades de consumo de bens materiais e simbólicos. Em conseqüência, definem também o conteúdo e as estéticas expressivas dos dispositivos comunicacionais voltados para o meio rural. Palavras-chaves – 1. Indústria cultural, 2. Comunicação Rural, 3. Indústria cultural e práticas discursivas para o meio rural. [1] Professor do Programa de Pós-Graduação em Comunicação e Informação para a Saúde. Fiocruz/ICICT. Rio de Janeiro. Endereço eletrônico: valdirco@yahoo.com.br

  6. Regulatory considerations concerning IND radiopharmaceutical drug products

    International Nuclear Information System (INIS)

    Nissel, M.

    1985-01-01

    The Food and Drug Administration is charged by the Food, Drug, and Cosmetic Act, as presently amended, to assure that any drug introduced into interstate commerce is safe and effective for the purposes for which it is labeled. A radiopharmaceutical is, by definition, a new drug unless there is in effect an approved New Drug Application (NDA) for it. Before the data for the NDA are compiled, investigative studies have to be done. Before such studies can be performed in humans, an exemption from the Act is necessary. This exemption, technically the Claimed Exemption for an Investigational New Drug, is termed the IND. Both the scientific and the administrative requirements for an IND are discussed. For radiopharmaceutical drug products (RDP's), the radiation hazards, as well as the pharmacological ones, must be documented. Should the early studies demonstrate a potential for efficacy in a certain condition or disease state, an investigative protocol for an extended clinical trial is presented. The necessary requirements for Institutional Review Board (IRB) approval and consent forms are discussed. For certain research purposes, uniquely for radioactive drugs, an IND is not required for certain specific studies; the requirements for such a research study, conducted under the auspices of an approved radioactive drug research committee, are outlined

  7. Commentary: "An Evaluation of Universal Grammar and the Phonological Mind"-UG Is Still a Viable Hypothesis.

    Science.gov (United States)

    Berent, Iris

    2016-01-01

    Everett (2016b) criticizes The Phonological Mind thesis (Berent, 2013a,b) on logical, methodological and empirical grounds. Most of Everett's concerns are directed toward the hypothesis that the phonological grammar is constrained by universal grammatical (UG) principles. Contrary to Everett's logical challenges, here I show that the UG hypothesis is readily falsifiable, that universality is not inconsistent with innateness (Everett's arguments to the contrary are rooted in a basic confusion of the UG phenotype and the genotype), and that its empirical evaluation does not require a full evolutionary account of language. A detailed analysis of one case study, the syllable hierarchy, presents a specific demonstration that people have knowledge of putatively universal principles that are unattested in their language and these principles are most likely linguistic in nature. Whether Universal Grammar exists remains unknown, but Everett's arguments hardly undermine the viability of this hypothesis.

  8. Commentary: “An Evaluation of Universal Grammar and the Phonological Mind”—UG Is Still a Viable Hypothesis

    Science.gov (United States)

    Berent, Iris

    2016-01-01

    Everett (2016b) criticizes The Phonological Mind thesis (Berent, 2013a,b) on logical, methodological and empirical grounds. Most of Everett’s concerns are directed toward the hypothesis that the phonological grammar is constrained by universal grammatical (UG) principles. Contrary to Everett’s logical challenges, here I show that the UG hypothesis is readily falsifiable, that universality is not inconsistent with innateness (Everett’s arguments to the contrary are rooted in a basic confusion of the UG phenotype and the genotype), and that its empirical evaluation does not require a full evolutionary account of language. A detailed analysis of one case study, the syllable hierarchy, presents a specific demonstration that people have knowledge of putatively universal principles that are unattested in their language and these principles are most likely linguistic in nature. Whether Universal Grammar exists remains unknown, but Everett’s arguments hardly undermine the viability of this hypothesis. PMID:27471480

  9. An investigation into breast imaging as part of the undergraduate (UG) education of diagnostic radiography students in the UK

    International Nuclear Information System (INIS)

    Strudwick, R.M.; Taylor, K.

    2017-01-01

    Introduction: How mammography is incorporated into undergraduate (UG) radiography training may influence student perception of the speciality and its potential as a future career option. An overview is provided of the academic and clinical content of UG radiography courses relating to mammography across the UK. Methods: Using mixed methods and an iterative, inductive approach supplying quantitative and qualitative data, we identify any variations and discuss possible causes which may help influence future training strategies. A self-designed questionnaire containing open and closed questions was sent online using SurveyMonkey™ to course leaders of all Higher Education Institutions (HEIs) offering BSc (Hons) Diagnostic Radiography courses in the UK. Responses were analysed for trends which were further explored by semi structured telephone interviews. These were transcribed and evaluated using a thematic analysis, the themes being categorised and coded. Results: 19 of 24 (79%) HEIs responded to the questionnaire. Follow up telephone interviews were conducted with five course leaders to further explore themes. Academic teaching ranged from 3 to 25 h over the 3 year course. Compared to other specialities 10 (53%) HEIs spent less time on mammography with 12 (63%) citing HCPC standards as the reason. 11 (65%) HEIs sent students on mammography placements, 2 (12%) sent females only. Placement times ranged between 2 days and 2 weeks. Influences included availability of expert teaching and relationship with clinical departments. Conclusion: There is variation in undergraduate exposure to mammography. Students views should be sought to add validity to these findings - Highlights: • A summary of undergraduate (UG) breast imaging in the UK. • Themes around the delivery of UG breast imaging education in university and practice. • Opinions of UG course leaders and other stakeholders about UG breast imaging education. • There is a variation across UK universities in

  10. The strongest magnetic barrier in the DIII-D tokamak and comparison with the ASDEX UG

    Science.gov (United States)

    Ali, Halima; Punjabi, Alkesh

    2013-05-01

    Magnetic perturbations in tokamaks lead to the formation of magnetic islands, chaotic field lines, and the destruction of flux surfaces. Controlling or reducing transport along chaotic field lines is a key challenge in magnetically confined fusion plasmas. A local control method was proposed by Chandre et al. [Nucl. Fusion 46, 33-45 (2006)] to build barriers to magnetic field line diffusion by addition of a small second-order control term localized in the phase space to the field line Hamiltonian. Formation and existence of such magnetic barriers in Ohmically heated tokamaks (OHT), ASDEX UG and piecewise analytic DIII-D [Luxon, J.L.; Davis, L.E., Fusion Technol. 8, 441 (1985)] plasma equilibria was predicted by the authors [Ali, H.; Punjabi, A., Plasma Phys. Control. Fusion 49, 1565-1582 (2007)]. Very recently, this prediction for the DIII-D has been corroborated [Volpe, F.A., et al., Nucl. Fusion 52, 054017 (2012)] by field-line tracing calculations, using experimentally constrained Equilibrium Fit (EFIT) [Lao, et al., Nucl. Fusion 25, 1611 (1985)] DIII-D equilibria perturbed to include the vacuum field from the internal coils utilized in the experiments. This second-order approach is applied to the DIII-D tokamak to build noble irrational magnetic barriers inside the chaos created by the locked resonant magnetic perturbations (RMPs) (m, n)=(3, 1)+(4, 1), with m and n the poloidal and toroidal mode numbers of the Fourier expansion of the magnetic perturbation with amplitude δ. A piecewise, analytic, accurate, axisymmetric generating function for the trajectories of magnetic field lines in the DIII-D is constructed in magnetic coordinates from the experimental EFIT Grad-Shafranov solver [Lao, L, et al., Fusion Sci. Technol. 48, 968 (2005)] for the shot 115,467 at 3000 ms in the DIII-D. A symplectic mathematical map is used to integrate field lines in the DIII-D. A numerical algorithm [Ali, H., et al., Radiat. Eff. Def. Solids Inc. Plasma Sc. Plasma Tech. 165, 83

  11. Molecular CsF 5 and CsF 2 +

    KAUST Repository

    Rogachev, Andrey Yu.; Miao, Mao-sheng; Merino, Gabriel; Hoffmann, Roald

    2015-01-01

    D5h star-like CsF5, formally isoelectronic with known XeF5− ion, is computed to be a local minimum on the potential energy surface of CsF5, surrounded by reasonably large activation energies for its exothermic decomposition to CsF+2 F2, or to CsF3 (three isomeric forms)+F2, or for rearrangement to a significantly more stable isomer, a classical Cs+ complex of F5−. Similarly the CsF2+ ion is computed to be metastable in two isomeric forms. In the more symmetrical structures of these molecules there is definite involvement in bonding of the formally core 5p levels of Cs.

  12. Molecular CsF 5 and CsF 2 +

    KAUST Repository

    Rogachev, Andrey Yu.

    2015-06-03

    D5h star-like CsF5, formally isoelectronic with known XeF5− ion, is computed to be a local minimum on the potential energy surface of CsF5, surrounded by reasonably large activation energies for its exothermic decomposition to CsF+2 F2, or to CsF3 (three isomeric forms)+F2, or for rearrangement to a significantly more stable isomer, a classical Cs+ complex of F5−. Similarly the CsF2+ ion is computed to be metastable in two isomeric forms. In the more symmetrical structures of these molecules there is definite involvement in bonding of the formally core 5p levels of Cs.

  13. 137Cs in man organism

    International Nuclear Information System (INIS)

    Marej, A.N.; Barkhudarov, R.M.

    1980-01-01

    Considered are the levels of 137 Cs content in the organism of adult urban population of the USSR and the main regularities of their alterations during 1962-1974. The non-uniform distribution of levels of 137 Cs buildup in adult population is shown to be connected with soil and geographic conditions. Food stuffs of local production have a noticeable effect on the levels of 137 Cs buildup in the organism of urban population. Calculation methods are used to study 137 Cs administration in a human organism. No significant difference is found between the indexes of 137 Cs content in the organism of rural and urban population. Presented are the levels of 137 Cs content in the organisms of inhabitants of such regions as Far North and Byelorussian-Ukrainian woodlands. Given are the reasons for the increased content of 137 Cs in the organism of rural population of these zones

  14. Theoretical study of the Cs isotope exchange reaction of CsI + Cs' → Cs + ICs' (Contract research)

    International Nuclear Information System (INIS)

    Kobayashi, Takanori; Hashimoto, Masashi; Yokoyama, Keiichi

    2015-12-01

    To discuss the exchange reaction of Cs isotope by CsI + Cs' → Cs + ICs', the structure and chemical properties of Cs 2 I intermediate and potential energy surface of the entrance reaction are calculated using M06/def2-TZVPPD density functional calculation. The calculation shows that the reaction to the intermediate has no barrier and the two Cs-I bonds of Cs 2 I are chemically equivalent. These results suggest that the rate of the Cs exchange reaction of CsI + Cs' → Cs + ICs' is as high as the collision rate. (author)

  15. Root cause analysis of the fatigue failures of the pulsation dampers of a large underground gas storage (UGS) system

    NARCIS (Netherlands)

    Eijk, A.; Lange, D. de; Maljaars, J.; Tenbrock-Ingenhorst, A.; Gottmer, A.

    2014-01-01

    Two large identical 6-cylinder Ariel JGB/6 reciprocating compressors each of 7.5 MW, are used for an underground gas storage system (UGS) plant of RWE Gasspeicher GmbH located in Epe, Germany. The system is in operation since 2005. In 2011 several internals parts (baffle plates and baffle choke

  16. Identification and validation of single nucleotide polymorphic markers linked to Ug99 stem rust resistance in spring wheat

    Science.gov (United States)

    Wheat stem rust (Puccinia graminis f. sp. tritici Eriks. and E. Henn.) is one of the most destructive diseases world-wide. Races belonging to Ug99 (or TTKSK) continue to cause crop losses in East Africa and threaten global wheat production. Developing and deploying wheat varieties with multiple race...

  17. Genomic analysis of a novel gene conferring resistance to Ug99 stem rust in Triticum turgidum ssp. dicoccum

    Science.gov (United States)

    Wheat production is threatened by the disease stem rust, which is caused by the biotrophic fungal pathogen Puccinia graminis Pers.:Pers. f. sp. tritici (Pgt). Among all known Pgt races, TTKSK (Ug99) and TRTTF are significant threats to North American wheat production due to their virulence against f...

  18. Frameworks in CS1

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Caspersen, Michael Edelgaard

    2002-01-01

    In this paper we argue that introducing object-oriented frameworks as subject already in the CS1 curriculum is important if we are to train the programmers of tomorrow to become just as much software reusers as software producers. We present a simple, graphical, framework that we have successfull...... point for introducing graphical user interface frameworks such as Java Swing and AWT as the students are not overwhelmed by all the details of such frameworks right away but given a conceptual road-map and practical experience that allow them to cope with the complexity....

  19. CS Seminar Videos

    OpenAIRE

    Ong, Derek; Tona, Glen; Gibb, Kyle; Parbadia, Sivani

    2013-01-01

    Main site for our project can be found at this URL: http://vtechworks.lib.vt.edu/handle/10919/19036. From here you can find videos of all the CS seminars and distinguished lectures given this semester. Each video has its own abstract and description. The files attached in this section are a final report in both raw Word Document and archival PDF formats and a presentation in both raw Powerpoint and archival PDF formats. Computer Science seminars are a very educational and interesting as...

  20. Frameworks in CS1

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Caspersen, Michael Edelgaard

    2002-01-01

    point for introducing graphical user interface frameworks such as Java Swing and AWT as the students are not overwhelmed by all the details of such frameworks right away but given a conceptual road-map and practical experience that allow them to cope with the complexity.......In this paper we argue that introducing object-oriented frameworks as subject already in the CS1 curriculum is important if we are to train the programmers of tomorrow to become just as much software reusers as software producers. We present a simple, graphical, framework that we have successfully...

  1. Identification and characterization of Sr13, a tetraploid wheat gene that confers resistance to the Ug99 stem rust race group

    Science.gov (United States)

    The Puccinia graminis f. sp. tritici (Pgt) Ug99 race group is virulent to most stem rust resistance genes currently deployed in wheat and poses a serious threat to global wheat production. The durum wheat (Triticum turgidum ssp. durum) gene Sr13 confers resistance to Ug99 in addition to virulent rac...

  2. Inde | Page 34 | CRDI - Centre de recherches pour le ...

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

    Accueil · Asie du sud. Inde. Inde. Read more about Reasoned Approach to Setting Priorities in Health. Langue English. Read more about Nanotechnology in South Asia : Building Capabilities and Governing the Technology in South Asia. Langue English. Read more about La nanotechnologie en Asie du Sud : renforcement ...

  3. Determination of Cs-134 and Cs-137 rain water samples

    International Nuclear Information System (INIS)

    Lima, M.F.; Mazzilli, B.

    1988-01-01

    In order to setting an environmental monitoring program at IPEN, was developed a fast and simple methodology for concentration of Cs-134 and Cs-137 in rain water. This procedure consists in the precipitation of cesium and others cathions of its family (NH 4 + , K + and Rb + ) by ammonium molybdophosphate. The measures of the desintegration rates of Cs-134 and Cs-137 was done by gamma spectrometry in a Ge(Li) detector. After setting up the ideal experimental conditions, the procedure was used to analyze four samples of rain water. (author) [pt

  4. Corrosion Test Results for Inconel 600 vs Inconel-Stainless UG Bellows

    International Nuclear Information System (INIS)

    Osborne, P.E.

    2002-01-01

    The Conversion Project (CP) of the Molten Salt Reactor Experiment at Oak Ridge National Laboratory (ORNL) involves converting slightly less than 40 kg of 233 U to a stable form for safe storage. The operation is performed within a few vessels interconnected by valves and 1/2-in. metal tubing. During this conversion, a particularly toxic and corrosive by-product is formed, namely aqueous hydrofluoric acid (HF). The production of HF is a result of the hydrolysis of UF 6 and subsequent steam treatments of UO 2 F 2 . For each mole of UF 6 converted, 6 mol of HF are produced. The HF that forms during conversion combines with water to produce approximately 1.5 L of 33 wt % HF. As this mixture is transferred within the process system, the tubing and valves are exposed to high concentrations of HF in liquid and vapor form. Of particular concern in the system are the almost 30 valves that have the potential for exposure to HF. For these valves, a vendor-supplied UG valve was installed. UG valves consist of an Alloy 400 (Monel) body and stem tip and Alloy 600 (Inconel) bellows. These valves have been used under experimental conditions that simulate the CP. It has been established that they have a finite life when exposed to a HF and air environment. Most failures were seen around the flange at the bottom of the bellows, and it was suspected that this flange and the weld material were not Inconel. In December 2001, the vendor confirmed that this flange was not Inconel but instead was stainless steel 316. After discussions between the vendor and ORNL staff involved with the CP effort, it was decided that the entire wetted area of the bellows would be fabricated from Alloy 600. In March 2002, four newly fabricated bellows assemblies were received from the vendor for the purposes of corrosion testing in HF. This report presents results from the corrosion tests conducted to determine if the new design of the bellows would enhance their corrosion resistance

  5. Corrosion Test Results for Inconel 600 vs Inconel-Stainless UG Bellows

    Energy Technology Data Exchange (ETDEWEB)

    Osborne, P.E.

    2002-09-11

    The Conversion Project (CP) of the Molten Salt Reactor Experiment at Oak Ridge National Laboratory (ORNL) involves converting slightly less than 40 kg of {sup 233}U to a stable form for safe storage. The operation is performed within a few vessels interconnected by valves and 1/2-in. metal tubing. During this conversion, a particularly toxic and corrosive by-product is formed, namely aqueous hydrofluoric acid (HF). The production of HF is a result of the hydrolysis of UF{sub 6} and subsequent steam treatments of UO{sub 2}F{sub 2}. For each mole of UF{sub 6} converted, 6 mol of HF are produced. The HF that forms during conversion combines with water to produce approximately 1.5 L of 33 wt % HF. As this mixture is transferred within the process system, the tubing and valves are exposed to high concentrations of HF in liquid and vapor form. Of particular concern in the system are the almost 30 valves that have the potential for exposure to HF. For these valves, a vendor-supplied UG valve was installed. UG valves consist of an Alloy 400 (Monel) body and stem tip and Alloy 600 (Inconel) bellows. These valves have been used under experimental conditions that simulate the CP. It has been established that they have a finite life when exposed to a HF and air environment. Most failures were seen around the flange at the bottom of the bellows, and it was suspected that this flange and the weld material were not Inconel. In December 2001, the vendor confirmed that this flange was not Inconel but instead was stainless steel 316. After discussions between the vendor and ORNL staff involved with the CP effort, it was decided that the entire wetted area of the bellows would be fabricated from Alloy 600. In March 2002, four newly fabricated bellows assemblies were received from the vendor for the purposes of corrosion testing in HF. This report presents results from the corrosion tests conducted to determine if the new design of the bellows would enhance their corrosion resistance.

  6. Foundation Fireworks CS4

    CERN Document Server

    Smith, N; Heerema, Matt; Mallott, Chuch; King, R; Erskine, Craig

    2009-01-01

    Are you a web designer who is looking for a new and quicker way to prototype and create for the web? Perhaps you are a programmer who finds most design tools to be overkill for what you need to get done. Or, maybe you're an old Fireworks pro, who wants to keep up to date on the latest changes in Creative Suite 4. Either way, this book has something for you. * Coverage of all that's new and powerful for the Web designer and developer in Fireworks CS4* Targets developers who want design tools that don't get in their way and designers who want development tools that don't constrain their creativi

  7. Frameworks in CS1

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Caspersen, Michael Edelgaard

    2002-01-01

    point for introducing graphical user interface frameworks such as Java Swing and AWT as the students are not overwhelmed by all the details of such frameworks right away but given a conceptual road-map and practical experience that allow them to cope with the complexity.......In this paper we argue that introducing object-oriented frameworks as subject already in the CS1 curriculum is important if we are to train the programmers of tomorrow to become just as much software reusers as software producers. We present a simple, graphical, framework that we have successfully...... used to introduce the principles of object-oriented frameworks to students at the introductory programming level. Our framework, while simple, introduces central abstractions such as inversion of control, event-driven programming, and variability points/hot-spots. This has provided a good starting...

  8. The role of unattended ground sensors (UGS) in regional confidence building and arms control

    Energy Technology Data Exchange (ETDEWEB)

    Vannoni, M.; Duggan, R.

    1997-03-01

    Although the Cold War has ended, the world has not become more peaceful. Without the stability provided by an international system dominated by two super-powers, local conflicts are more likely to escalate. Agreements to counter destabilizing pressures in regional conflicts can benefit from the use of cooperative monitoring. Cooperative monitoring is the collecting, analyzing, and sharing of information among parties to an agreement. Ground sensor technologies can contribute to the collection of relevant information. If implemented with consideration for local conditions, cooperative monitoring can build confidence, strengthen existing agreements, and set the stage for continued progress. This presentation describes two examples: the Israeli-Egyptian Sinai agreements of the 1970s and a conceptual example for the contemporary Korean Peninsula. The Sinai was a precedent for the successful use of UGS within the context of cooperative monitoring. The Korean Peninsula is the world`s largest military confrontation. Future confidence building measures that address the security needs of both countries could decrease the danger of conflict and help create an environment for a peace agreement.

  9. Indústria do conhecimento: uma poderosa engrenagem

    OpenAIRE

    Miguelote, Vera Regina da Silva; Camargo Jr, Kenneth Rochel de

    2010-01-01

    O artigo aborda a articulação da indústria farmacêutica à indústria do conhecimento, por meio de poderosas estratégias de marketing. Com o objetivo de legitimar cientificamente seus produtos, a indústria interfere na produção de conhecimento médico. Configurando uma engrenagem de direcionamento de interesses econômicos, financia pesquisas na área de medicamentos, enviesa seus resultados e incentiva a produção e publicação de artigos científicos. Trata-se de uma engrenagem que ameaça important...

  10. The concentration of 137Cs and stable Cs in zooplankton in the western North Pacific in relation to their taxonomic composition

    International Nuclear Information System (INIS)

    Kaeriyama, Hideki; Watabe, Teruhisa; Kusakabe, Masashi

    2008-01-01

    The objective of this study is to obtain information on the background level of 137 Cs in zooplankton in the waters close to Rokkasho-mura in Aomori Prefecture, Japan, where a large-scale project has been progressively promoted to establish the nuclear fuel cycle. Prior to the full-scale operation of the spent nuclear fuel reprocessing plant, zooplankton samples were collected in May and October 2005, June 2006, and June 2007 from the surface water (0-5 m depth). The samples were analyzed to determine the concentrations of 137 Cs and stable Cs in relation to taxonomic composition. The numerical abundance of the plankton varied from 253 to 1514 inds. m -3 . Taxonomic composition differed between the two sampling periods. Although copepods formed the most abundant taxonomic group during both seasons, gelatinous plankton (chaetognaths, siphonophores, appendicularians and doliolids) were more abundant in October 2005 than in June 2006 and June 2007. The concentration of 137 Cs in zooplankton varied from 11 to 24 mBq kg-WW -1 . At the same station, the 137 Cs concentration in zooplankton in October 2005 was almost twice as much as that in June 2006, although the concentration of 137 Cs in seawater did not show a difference. The concentration of stable Cs was measured for each taxonomic group: that in gelatinous zooplankton (chaetognaths) was higher than that in crustacean zooplankton (copepods, euphausiids and amphipods). These results suggest that the concentration of 137 Cs in zooplankton is affected by the occurrence of gelatinous zooplankton. (author)

  11. Activity standardization of 134Cs and 137Cs

    International Nuclear Information System (INIS)

    Sochorová, Jana; Auerbach, Pavel

    2014-01-01

    The paper presents the results from a primary standardization of 137 Cs using two independent methods – efficiency tracing using PC-NaI coincidence and the TDCR method. The nuclides 60 Co and 134 Cs were used as the tracers. Primary standardization of the 134 Cs is also discussed. The efficiency extrapolation was carried out by measuring samples of varying mass and using the wet extrapolation method. The results obtained are in good agreement; the differences did not exceed 0.5%. The advantages, pitfalls and also possibilities for improvement of the procedures are discussed

  12. Derechos Humanos en Poblaciones Indígenas

    OpenAIRE

    Tuy, María del Carmen

    2017-01-01

    El tema que se me ha solicitado, Derechos Humanos en Poblaciones Indígenas, para Guatemala, puedo decir que es un tema del momento, ya que recientemente se firmó El Acuerdo de Paz Firme y Duradera, en donde en los diferentes acuerdos fueron tomados en gran parte los derechos de los Pueblos Indígenas, en este caso del pueblo Maya, Garífuna y Xinca

  13. En rejse ind i dental biofilm

    DEFF Research Database (Denmark)

    Schlafer, Sebastian

    Som klinkassistent og tandplejer arbejder man hver dag med bakteriel biofilm på tandoverfladerne – plak. Alle ved udmærket, at denne biofilm er ansvarlig for mundhulens hyppigste sygdomme, caries og parodontitis. Vi renser patienternes tænder for biofilm og opfordrer dem til at fjerne biofilmen...... mindst to gange om dagen, så grundigt de kan. Desuden bruges der en lang række antibakterielle tilsætningsstoffer i både tandpasta og mundskyllevæsker, hvis hovedformål er at dræbe bakterierne i dental biofilm. Men er biofilmen virkelig kun farlig? Nyere forskning har vist, at mennesket faktisk i høj...... grad er afhængig af de bakterier, der koloniserer kroppen. Hvorfor gælder dette tilsyneladende ikke for mundhulen? I løbet af præsentationen vil jeg tage tilhørerne med på en rejse ind i dental biofilm. Jeg vil belyse den komplekse bakterielle arkitektur, som kendetegner biofilmen, og vil analysere de...

  14. Rachunek kosztów działańjako podstawa wyceny usług

    Directory of Open Access Journals (Sweden)

    Gertruda Krystyna Świderska

    2009-03-01

    Full Text Available Artykuł prezentuje wykorzystanie rachunku kosztów działań do wyceny usług na trzech rynkach podlegających centralnym regulacjom – rynku usług pocztowych, telekomunikacyjnych oraz świadczeń zdrowotnych. Doświadczenia krajów Unii Europejskiej (w tym Polski pokazują nowe obszary wykorzystania rachunku kosztów działań. Potwierdzają, że zastosowanie tego narzędzia pozwala na kontrolę kosztów ponoszonych przy świadczeniu usług oraz wycenę na podstawie rzeczywistego rachunku ekonomicznego. Takie podejście gwarantuje przejrzystość procesu wyceny na rynkach, na których odgrywa to szczególnie istotną rolę. W części pierwszej przedstawiono zarys koncepcji rachunku kosztów działań wykorzystanej w PPUP Poczta Polska. Scharakteryzowano zastosowane rozwiązanie dostosowane do specyfiki działań poczty, zawierające elementy obiektowego rachunku kosztów działań oraz rachunku kosztów działań sterowanego czasem. W części drugiej zaprezentowano zastosowanie koncepcji rachunku kosztów działań do wyceny świadczonych usług w British Telecom. Wykorzystanie właściwych nośników kosztów pozwala na prawidłowe przypisanie kosztów obiektom je generującym. W części trzeciej opisano doświadczenia krajów Unii Europejskiej w zakresie stosowania rachunku kosztów działań do wyceny świadczeń medycznych. Stanowią one przesłankę dla wdrożenia tej koncepcji do wyceny usług zdrowotnych na rynku polskim.

  15. 1+ collective states of 124Cs and 126Cs nuclei

    International Nuclear Information System (INIS)

    Ivanova, S.P.; Kuliev, A.A.; Salamov, D.I.

    1977-01-01

    Within the framework of the random phase approximation β-decay properties of the 1 + states of 124 Cs and 126 Cs have been investigated. Greatly collectivized 1 + states in odd-odd nuclei are produced by the spin-dependent charge-exchange nucleon interaction. For numerical calculations the scheme of single-particle levels in the deformed Saxon-Woods potential has been used

  16. The Development of “Eldo Ngano 1”: The World’s World’s First Ug99 Resistant Mutant Wheat Variety

    International Nuclear Information System (INIS)

    Forster, Brian P.

    2014-01-01

    The wheat black stem rust disease is a virulent race of fungus, Puccinia graminis, which affects wheat plants and is caused by a strain of fungus known as Ug99. Named for its place and year of origin, Ug99 was first discovered on wheat in Uganda in 1999. The spores of this plant disease are airborne and can be easily spread by wind. If not prevented, the disease can destroy 70 to 100 per cent of the yield of wheat crops. Annually on average 8.3 million tonnes of wheat grain is lost to this disease, costing US $1.23 billion per year. Ethiopia, Kenya and Uganda are hot spots for this disease. In 2009, growing international concern regarding the horrific impact of Ug99 on wheat led to the establishment of IAEA project INT/5/150, Responding to the Transboundary Threat of Wheat Black Stem Rust (Ug99). This project has involved over 18 countries and 5 national and international institutions, and examined possible mutation induction treatments to deal with the challenges posed by Ug99. Meetings and workshops to facilitate the project efforts have been held in Kenya and Turkey. Ug99 continues to spread globally and has now reached the Islamic Republic of Iran. There are also reports of suspected disease occurrences in Europe. It is essential that work continues on developing mutant lines for further crop protection that can be utilized worldwide to safeguard the wheat crop from this devastating disease

  17. Quantification of African cassava mosaic virus (ACMV) and East African cassava mosaic virus (EACMV-UG) in single and mixed infected Cassava (Manihot esculenta Crantz) using quantitative PCR.

    Science.gov (United States)

    Naseem, Saadia; Winter, Stephan

    2016-01-01

    The quantity of genomic DNA-A and DNA-B of African cassava mosaic virus (ACMV) and East African cassava mosaic virus Uganda (Uganda variant, EACMV-UG) was analysed using quantitative PCR to assess virus concentrations in plants from susceptible and tolerant cultivars. The concentrations of genome components in absolute and relative quantification experiments in single and mixed viral infections were determined. Virus concentration was much higher in symptomatic leaf tissues compared to non-symptomatic leaves and corresponded with the severity of disease symptoms. In general, higher titres were recorded for EACMV-UG Ca055 compared to ACMV DRC6. The quantitative assessment also showed that the distribution of both viruses in the moderately resistant cassava cv. TMS 30572 was not different from the highly susceptible cv. TME 117. Natural mixed infections with both viruses gave severe disease symptoms. Relative quantification of virus genomes in mixed infections showed higher concentrations of EACMV-UG DNA-A compared to ACMV DNA-A, but a marked reduction of EACMV-UG DNA-B. The higher concentrations of EACMV-UG DNA-B compared to EACMV DNA-A accumulation in single infections were consistent. Since DNA-B is implicated in virus cell-to-cell spread and systemic movement, the abundance of the EACMV-UG DNA-B may be an important factor driving cassava mosaic disease epidemic. Copyright © 2015 Elsevier B.V. All rights reserved.

  18. Learning Flash CS4 Professional

    CERN Document Server

    Shupe, Rich

    2009-01-01

    Learning Flash CS4 Professional offers beginners and intermediate Flash developers a unique introduction to the latest version of Adobe's powerful multimedia application. This easy-to-read book is loaded with full-color examples and hands-on tasks to help you master Flash CS4's new motion editor, integrated 3D system, and character control using the new inverse kinematics bones animation system. No previous Flash experience is necessary.

  19. Discovery of a Novel Stem Rust Resistance Allele in Durum Wheat that Exhibits Differential Reactions to Ug99 Isolates

    Directory of Open Access Journals (Sweden)

    Jayaveeramuthu Nirmala

    2017-10-01

    Full Text Available Wheat stem rust, caused by Puccinia graminis f. sp. tritici Eriks. & E. Henn, can incur yield losses in susceptible cultivars of durum wheat, Triticum turgidum ssp. durum (Desf. Husnot. Although several durum cultivars possess the stem rust resistance gene Sr13, additional genes in durum wheat effective against emerging virulent races have not been described. Durum line 8155-B1 confers resistance against the P. graminis f. sp. tritici race TTKST, the variant race of the Ug99 race group with additional virulence to wheat stem rust resistance gene Sr24. However, 8155-B1 does not confer resistance to the first-described race in the Ug99 race group: TTKSK. We mapped a single gene conferring resistance in 8155-B1 against race TTKST, Sr8155B1, to chromosome arm 6AS by utilizing Rusty/8155-B1 and Rusty*2/8155-B1 populations and the 90K Infinium iSelect Custom bead chip supplemented by KASP assays. One marker, KASP_6AS_IWB10558, cosegregated with Sr8155B1 in both populations and correctly predicted Sr8155B1 presence or absence in 11 durum cultivars tested. We confirmed the presence of Sr8155B1 in cultivar Mountrail by mapping in the population Choteau/Mountrail. The marker developed in this study could be used to predict the presence of resistance to race TTKST in uncharacterized durum breeding lines, and also to combine Sr8155B1 with resistance genes effective to Ug99 such as Sr13. The map location of Sr8155B1 cannot rule out the possibility that this gene is an allele at the Sr8 locus. However, race specificity indicates that Sr8155B1 is different from the known alleles Sr8a and Sr8b.

  20. Jeroky Mbaekua - aspectos da etnoarte indígena.

    Directory of Open Access Journals (Sweden)

    Oseias de Oliveira

    2015-06-01

    Full Text Available A idéia de arte compartilhada na cultura ocidental tradicionalmente tem sido entendida a partir de elementos conceituais e categorizações que não podem ser aplicados na cultura indígena. Assim, considerar a arte indígena significa observar sua complexidade, de forma a perpassar todas as instâncias da vida desses sujeitos. Desta forma, o texto busca discutir aspectos da etnoarte indígena que não é focada em uma noção de arte centralizada e homogeneizadora mas, sim atenta à uma perspectiva que busca contemplar melhor o seu modo de construção de símbolos, significados e representações culturais.

  1. 21 CFR 312.22 - General principles of the IND submission.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 5 2010-04-01 2010-04-01 false General principles of the IND submission. 312.22... (IND) § 312.22 General principles of the IND submission. (a) FDA's primary objectives in reviewing an... likelihood that the investigations will yield data capable of meeting statutory standards for marketing...

  2. Inde | Page 74 | CRDI - Centre de recherches pour le ...

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

    Inde. S'il se peut bien que les changements climatiques viennent aggraver le problème, il ressort de recherches menées dans deux bassins versants du sud du pays que la pollution industrielle, l'exploitation non réglementée des ressources et ...

  3. Inde | Page 74 | CRDI - Centre de recherches pour le ...

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

    In just two days, 12 million people in India's coastal states of Odisha and Andhra Pradesh suffered massive losses, of their homes and livelihoods, when Cyclone Phailin ... Une urbanisation rapide sollicite fortement les ressources en eau limitées de l'Inde. ... Rapid urbanization is squeezing India's limited water resources.

  4. Inde | Page 43 | CRDI - Centre de recherches pour le ...

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

    Langue English. Read more about Approche concertée en matière de lutte contre la violence faite aux femmes du Meghalaya. Langue French. Read more about Donner aux travailleurs du sexe les moyens de consigner les incidents de violence (Inde et Cambodge). Langue French. Read more about Enabling Sex Workers ...

  5. 'Wash-out' of Cs-134 and Cs-137 from river sediment; 'Ispiranja' Cs-134 i Cs-137 iz recnog sedimenta

    Energy Technology Data Exchange (ETDEWEB)

    Skrbic, Z; Conkic, Lj; Bikit, I; Veskovic, M; Slivka, J; Marinkov, L [Institut za Fiziku, Novi Sad Univ. (Yugoslavia)

    1988-07-01

    Natural elimination and 'wash out' period of the Cs-134 and Cs-137 from the river sediment has been investigated. Obtained results suggest the possibility to describe these processes by exponential low and determination of the corresponding half lives. (author)

  6. New Seeds are Resistant to Wheat Stem Rust (Ug99) Multinational Programme Supported by FAO and IAEA

    International Nuclear Information System (INIS)

    2013-01-01

    Full text: A multinational effort supported by the International Atomic Energy Agency and the U.N. Food and Agriculture Organization marked a key milestone this week when a Kenyan university debuted two new varieties of disease-resistant wheat to the nation's farmers. Over the past two days, thousands of Kenyan farmers have visited Eldoret University in western Kenya for a two-day agriculture fair highlighting the latest farming technologies. Supporting the development of the new varieties were the IAEA's Technical Cooperation Department and the Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture. They manage an interregional Technical Cooperation project to develop varieties of wheat that are resistant to a devastating type of fungus, causing a disease known as wheat stem rust. Wheat stem rust under control for over 30 years, but a resurgence of the disease was discovered in 1999 in Uganda that swiftly spread to neighbouring Kenya. The wheat stem rust, caused by the strain of the fungus known as Ug99, named after its place and year of origin, has since spread to Iran, Yemen and South Africa and threatens crops as far away as India as spores are carried by wind. Parasitic rusts threaten global wheat production, reducing plant growth and crop yields. The disease can destroy up to 70-100 percent of the yield of wheat crop if not prevented. 'Improving food security in developing countries through the use of nuclear techniques is an important priority of the IAEA', said IAEA Director General Yukiya Amano. 'I am pleased that we have been able to make an important contribution to fighting wheat rust'. 'Wheat rusts, particularly the Ug99 strain, are a major threat to food security because rust epidemics can result in devastating yield losses. This international project involving affected countries, plant scientists and breeders and international organizations is a major breakthrough. It clearly shows the benefits of FAO/IAEA collaboration and that

  7. Uptake and distribution of 137Cs, stable Cs and K in rice plants

    International Nuclear Information System (INIS)

    Tsukada, Hirofumi; Hasegawa, Hidenao

    2003-01-01

    The uptake and distributions of 137 Cs, stable Cs and K were determined for rice plant components, including polished rice, rice bran, hulls, leaves, stems, and roots. The distribution of 137 Cs in polished rice and rice bran was similar to that of stable Cs, while that of K was different. The concentration ratios of Cs/K in leaves increased in older leaf blade positions, which meant that the translocation rate of stable Cs, was slower than that of K. At harvest the dry weight of polished rice accounted for 34% of the entire rice plant, while the distributions of stable Cs in the polished rice and the non-edible parts were 7 and 93%, respectively. These findings suggest that the transfer and distribution of stable Cs in rice plants are different from those of K, and the behavior of stable Cs provides a useful analogue in predicting the fate of 137 Cs in an agricultural environment. (author)

  8. Testamentos de indígenas americanos: siglos XVI - XVII

    Directory of Open Access Journals (Sweden)

    Pablo Rodríguez

    2006-06-01

    Full Text Available Este artigo pretende explicar o significado e as características dos testamentos indígenas registrados em diferentes regiões da América espanhola. A fonte principal do estudo são coleções documentais de testamentos publicadas no México, na Colômbia e no Chile. Também utiliza os estudos historiográficos que, com base nesses documentos, foram realizados no Equador e no Peru. O artigo abre uma nova janela à compreensão dos complexos processos econômicos, sociais e culturais vividos pelos povos indígenas a partir da conquista.

  9. Educación indígena

    Directory of Open Access Journals (Sweden)

    Martha Rodríguez

    2015-01-01

    Full Text Available La sociedad ecuatoriana es multicultural y pluricultural. La educación de los indígenas debe ser la mayor prioridad.Ellos tienen que recuperar su espacio natural y ser dueños de su propio destino... y de los medios de comunicación.Describe el artículo como se concebía la educación desde la Colonia., la independencia y cuál fue el trato que se dio a los indígenas, los modelos educativos que se aplicaron, la educación formal, la educación bilingüe, los proyectos autogestionarios, la educación bilingüe intercultural.

  10. Buen vivir y pueblos indígenas en Colombia

    OpenAIRE

    Rosa, Oscar David Montero de la

    2017-01-01

    ResumenA partir de la Constitución Política de 1991, Colombia se reconoce como un país multiétnico y pluricultural. Los 102 Pueblos Indígenas existentes en el país tienen como principios de lucha el Territorio, la Cultura, la Autonomía y la Unidad. Hoy el movimiento indígena colombiano, es un referente consolidado, a pesar del exterminio físico y cultural. Actualmente 36 pueblos están en riesgo de extinción, a raíz de las políticas estatales, el conflicto armado interno y el desarrollo occide...

  11. Juventud indígena en el Totonacapan Veracruzano

    Directory of Open Access Journals (Sweden)

    Ariel García Martínez

    2012-01-01

    Full Text Available El artículo pretende dar a conocer la especificidad de la juventud indígena de Totonacapan, su incorporación a la sociedad adulta y su interacción a través de un comparativo que toma como punto de partida la integración de los poblados pertenecientes a la sierra de Papantla, en el norte del estado de Veracruz, con el resto de la sociedad nacional. El trabajo intenta reconstruir el surgimiento de los “jóvenes indígenas” totonacos como producto de la interacción con su propia cultura y la cultura nacional en las cuatro últimas décadas.

  12. Inde | Page 77 | CRDI - Centre de recherches pour le ...

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

    Ce n'est un secret pour personne que les produits agricoles traditionnels comme les mils et les légumineuses à graines sont très nutritifs. C'est pourquoi des chercheurs collaborent actuellement avec des femmes en Inde et en Éthiopie pour faciliter l'utilisation à des fins personnelles (pour la préparation de repas sains) et ...

  13. de las mujeres indígenas migrantes

    Directory of Open Access Journals (Sweden)

    Elizabeth Maier

    2006-01-01

    falta de tiempo y energía para realizar estos derechos a plenitud, por el otro. El artículo examina la influencia de las nuevas condiciones de vida y trabajo del mercado global en la relación de género y los procesos de sujetivización y ciudadanización de mujeres indígenas inmigrantes.

  14. Adobe Photoshop CS6 bible

    CERN Document Server

    Dayley, Brad

    2012-01-01

    The comprehensive, soup-to-nuts guide to Photoshop, fully updated Photoshop CS6, used for both print and digital media, is the industry leader in image-editing software. The newest version adds some exciting new features, and this bestselling guide has been revised to cover each of them, along with all the basic information you need to get started. Learn to use all the tools, including the histogram palette, Lens Blur, Match Color, and the color replacement tool, as well as keyboard shortcuts. Then master retouching and color correction, work with Camera Raw images, prepare photos for print

  15. Reactive barriers for 137Cs retention

    International Nuclear Information System (INIS)

    Krumhansl, James L.; Brady, Patrick V.; Anderson, Howard L.

    2000-01-01

    137 Cs was dispersed globally by cold war activities and, more recently, by the Chernobyl accident. Engineered extraction of 137 Cs from soils and groundwaters is exceedingly difficult. Because the half life of 137 Cs is only 30.2 years, remediation might be more effective (and less costly) if 137 Cs bioavailability could be demonstrably limited for even a few decades by use of a reactive barrier. Essentially permanent isolation must be demonstrated in those few settings where high nuclear level wastes contaminated the environment with 135 Cs (half life 2.3x10 6 years) in addition to 137 Cs. Clays are potentially a low-cost barrier to Cs movement, though their long-term effectiveness remains untested. To identify optimal clays for Cs retention Cs resorption was measured for five common clays: Wyoming Montmorillonite (SWy-1), Georgia Kaolinites (KGa-1 and KGa-2), Fithian Illite (F-Ill), and K-Metabentonite (K-Mbt). Exchange sites were pre-saturated with 0.16 M CsCl for 14 days and readily exchangeable Cs was removed by a series of LiNO 3 and LiCl washes. Washed clay were then placed into dialysis bags and the Cs release to the deionized water outside the bags measured. Release rates from 75 to 139 days for SWy-1, K-Mbt and F- 111 were similar; 0.017 to 0.021% sorbed Cs released per day. Both kaolinites released Cs more rapidly (0.12 to 0.05% of the sorbed Cs per day). In a second set of experiments, clays were doped for 110 days and subjected to an extreme and prolonged rinsing process. All the clays exhibited some capacity for irreversible Cs uptake so most soils have some limited ability to act as a natural barrier to Cs migration. However, the residual loading was greatest on K-Mbt (∼ 0.33 wt% Cs). Thus, this clay would be the optimal material for constructing artificial reactive barriers

  16. Determination of {sup 135}Cs and {sup 137}Cs in environmental samples: A review

    Energy Technology Data Exchange (ETDEWEB)

    Russell, B.C., E-mail: ben.russell@npl.co.uk [GAU-Radioanalytical, Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH (United Kingdom); National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW (United Kingdom); Croudace, Ian W.; Warwick, Phil E. [GAU-Radioanalytical, Ocean and Earth Science, University of Southampton, National Oceanography Centre, Southampton, SO14 3ZH (United Kingdom)

    2015-08-26

    Radionuclides of caesium are environmentally important since they are formed as significant high yield fission products ({sup 135}Cs and {sup 137}Cs) and activation products ({sup 134}Cs and {sup 136}Cs) during nuclear fission. They originate from a range of nuclear activities such as weapons testing, nuclear reprocessing and nuclear fuel cycle discharges and nuclear accidents. Whilst {sup 137}Cs, {sup 134}Cs and {sup 136}Cs are routinely measurable at high sensitivity by gamma spectrometry, routine detection of long-lived {sup 135}Cs by radiometric methods is challenging. This measurement is, however, important given its significance in long-term nuclear waste storage and disposal. Furthermore, the {sup 135}Cs/{sup 137}Cs ratio varies with reactor, weapon and fuel type, and accurate measurement of this ratio can therefore be used as a forensic tool in identifying the source(s) of nuclear contamination. The shorter-lived activation products {sup 134}Cs and {sup 136}Cs have a limited application but provide useful early information on fuel irradiation history and have importance in health physics. Detection of {sup 135}Cs (and {sup 137}Cs) is achievable by mass spectrometric techniques; most commonly inductively coupled plasma mass spectrometry (ICP-MS), as well as thermal ionisation (TIMS), accelerator (AMS) and resonance ionisation (RIMS) techniques. The critical issues affecting the accuracy and detection limits achievable by this technique are effective removal of barium to eliminate isobaric interferences arising from {sup 135}Ba and {sup 137}Ba, and elimination of peak tailing of stable {sup 133}Cs on {sup 135}Cs. Isobaric interferences can be removed by chemical separation, most commonly ion exchange chromatography, and/or instrumental separation using an ICP-MS equipped with a reaction cell. The removal of the peak tailing interference is dependent on the instrument used for final measurement. This review summarizes and compares the analytical procedures

  17. Cs-137 migration in soil near NPPs

    International Nuclear Information System (INIS)

    Silant'ev, A.N.; Shkuratova, I.G.; Khatskevich, R.N.

    1984-01-01

    A convective-diffusion model has been employed for describing Cs-137 migration in soil. The migration parameters were determined by comparing the calculated vertical distribution profiles with the experimental ones. The migration parameters dependence on the soil state has been studied. Cs-137 penetration rate was found to be function of the soil type, surface state, soil wetness and orography. The obtained values are presented. A method is suggested for revealing the soil surface contamination by Cs-137 produced during NPP operation with distinguishing it from the global contamination background. For this purpose Cs-137 content in the upper 5 mm soil layer is estimated [ru

  18. Properties of Cs-intercalated single wall carbon nanotubes investigated by 133Cs Nuclear Magnetic resonance

    KAUST Repository

    Schmid, Marc R.; Mahfouz, Remi; Bouhrara, Mohamed; Saih, Youssef; Mehring, Michael; Basset, Jean-Marie; Goze-Bac, Christophe; Abou-Hamad, Edy

    2012-01-01

    present within the carbon nanotube bundles. At high concentrations, the Cs (β)+ ions seem to occupy well defined positions relative to the carbon lattice. As a matter of fact, the Korringa relaxation behavior suggests a strong hyperfine coupling between Cs

  19. Editorial: Anastasia Candre y otros creadores indígenas

    Directory of Open Access Journals (Sweden)

    Juan Alvaro Echeverri

    2014-09-01

    Full Text Available Presentación de la trayectoria personal e intelectual de Anastasia Candre, presentación del contenido de los tres dossiers de la revista (Anastasia Candre, Mira - Artes Visuales Contemporáneas de los Pueblos Indígenas, e Investigación Propia, discusión de la riqueza lingüistica y expresiva de estos textos y de su aporte como formas alternativas de conocimiento y expresión. Concluye con unas palabras en memoria de Roberto Franco García y Daniel Matapí, fallecidos en septiembre de 2014 en un accidente aéreo.

  20. Zoom on India | Gros plan sur l’Inde

    Directory of Open Access Journals (Sweden)

    2012-05-01

    Full Text Available Indian Energy Production and Consumption (in Million Tonnes of Oil EquivalentProduction et consommation d’énergie en Inde (en millions de tonnes d’équivalent pétroleSource: World Bank, World Bank Development Indicators, 2010.Indian Oil, Gas and Coal Imports (in Million Tonnes of Oil Equivalent, 2008*Importations indiennes de pétrole, de gaz et de charbon (en millions de tonnes d’équivalent pétrole, 2008** 2009 for coal data | 2009 pour les données sur le charbon.Sources: British Petroleum...

  1. Temperature and Pressure Dependence of the Reaction S plus CS (+M) -> CS2 (+M)

    DEFF Research Database (Denmark)

    Glarborg, Peter; Marshall, Paul; Troe, Juergen

    2015-01-01

    Experimental data for the unimolecular decomposition of CS2 from the literature are analyzed by unimolecular rate theory with the goal of obtaining rate constants for the reverse reaction S + CS (+M) -> CS2 (+M) over wide temperature and pressure ranges. The results constitute an important input...

  2. Vertical profile of 137Cs in soil.

    Science.gov (United States)

    Krstić, D; Nikezić, D; Stevanović, N; Jelić, M

    2004-12-01

    In this paper, a vertical distribution of 137Cs in undisturbed soil was investigated experimentally and theoretically. Soil samples were taken from the surroundings of the city of Kragujevac in central Serbia during spring-summer of 2001. The sampling locations were chosen in such a way that the influence of soil characteristics on depth distribution of 137Cs in soil could be investigated. Activity of 137Cs in soil samples was measured using a HpGe detector and multi-channel analyzer. Based on vertical distribution of 137Cs in soil which was measured for each of 10 locations, the diffusion coefficient of 137Cs in soil was determined. In the next half-century, 137Cs will remain as the source of the exposure. Fifteen years after the Chernobyl accident, and more than 30 years after nuclear probes, the largest activity of 137Cs is still within 10 cm of the upper layer of the soil. This result confirms that the penetration of 137Cs in soil is a very slow process. Experimental results were compared with two different Green functions and no major differences were found between them. While both functions fit experimental data well in the upper layer of soil, the fitting is not so good in deeper layers. Although the curves obtained by these two functions are very close to each other, there are some differences in the values of parameters acquired by them.

  3. 137Cs concentration in some Philippine foods

    International Nuclear Information System (INIS)

    dela Cruz, B.; Marzan, A.M.; Lagmay, N.; Anden, A.

    1977-01-01

    The current investigation being made by the Philippine Atomic Research Center on the 137 Cs content of the different foods commonly used by the Filipinos is described and preliminary results are reported. The 137 Cs content is determined radiochemically only for the edible portion of the food

  4. An indigoidine biosynthetic gene cluster from Streptomyces chromofuscus ATCC 49982 contains an unusual IndB homologue.

    Science.gov (United States)

    Yu, Dayu; Xu, Fuchao; Valiente, Jonathan; Wang, Siyuan; Zhan, Jixun

    2013-01-01

    A putative indigoidine biosynthetic gene cluster was located in the genome of Streptomyces chromofuscus ATCC 49982. The silent 9.4-kb gene cluster consists of five open reading frames, named orf1, Sc-indC, Sc-indA, Sc-indB, and orf2, respectively. Sc-IndC was functionally characterized as an indigoidine synthase through heterologous expression of the enzyme in both Streptomyces coelicolor CH999 and Escherichia coli BAP1. The yield of indigoidine in E. coli BAP1 reached 2.78 g/l under the optimized conditions. The predicted protein product of Sc-indB is unusual and much larger than any other reported IndB-like protein. The N-terminal portion of this enzyme resembles IdgB and the C-terminal portion is a hypothetical protein. Sc-IndA and/or Sc-IndB were co-expressed with Sc-IndC in E. coli BAP1, which demonstrated the involvement of Sc-IndB, but not Sc-IndA, in the biosynthetic pathway of indigoidine. The yield of indigoidine was dramatically increased by 41.4 % (3.93 g/l) when Sc-IndB was co-expressed with Sc-IndC in E. coli BAP1. Indigoidine is more stable at low temperatures.

  5. Underground gas storage Uelsen: Findings from planning, building and commissioning the surface buildings and structures; Untertagegasspeicher (UGS) Uelsen: Erkenntnisse aus Planung, Bau und Inbetriebnahme der obertaegigen Anlagen

    Energy Technology Data Exchange (ETDEWEB)

    Focke, H.; Brueggmann, R.; Mende, F.; Steinkraus, D.; Wauer, R. [BEB Erdgas und Erdoel GmbH, Hannover (Germany)

    1998-12-31

    The article describes the concepts of the plants and equipment and the specific features of the underground storage at Uelsen. The underground storage will be purpose-built as an H-gas storage in a nearly depleted sandstone deposit. At a nominal deliverability of 250.000 cubic m/h (Vn) the storage at Uelsen has more potential for expansion. This potential was taken into account by designing appropriate pressure stages, capacities, performance characteristics and space. (orig.). [Deutsch] Die nachfolgende Veroeffentlichung stellt das anlagentechnische Grundkonzept und die spezifischen Besonderheiten des UGS Uelsen dar. Der im suedwestlichen Niedersachsen als H-Gasspeicher in einer nahezu ausgefoerderten Buntsandsteinlagerstaette eingerichtete UGS Uelsen wird in mehreren Ausbaustufen bedarfsgerecht fertiggestellt. Bei einer Nennentnahmekapazitaet von 450.000 m{sup 3}/h (Vn) und einer Nenninjektionsleistung von 250.000 m{sup 3}/h (Vn) weist der UGS Uelsen noch weiteres Potential fuer Erweiterungen auf. Dieses Ausbaupotential wurde bei der Planung und dem Bau der bestehenden Anlagen durch Festlegung entsprechender Druckstufen, Kapazitaeten, Leistungsgroessen und Platzanordnungen beruecksichtigt. (orig.)

  6. Creation of a magnetic barrier at a noble q close to physical midpoint between two resonant surfaces in the ASDEX UG tokamak

    Science.gov (United States)

    Vazquez, Justin; Ali, Halima; Punjabi, Alkesh

    2009-11-01

    Ciraolo, Vittot and Chandre method of building invariant manifolds inside chaos in Hamiltonian systems [Ali H. and Punjabi A, Plasma Phys. Control. Fusion, 49, 1565--1582 (2007)] is used in the ASDEX UG tokamak. In this method, a second order perturbation is added to the perturbed Hamiltonian [op cit]. It creates an invariant torus inside the chaos, and reduces the plasma transport. The perturbation that is added to the equilibrium Hamiltonian is at least an order of magnitude smaller than the perturbation that causes chaos. This additional term has a finite, limited number of Fourier modes. Resonant magnetic perturbations (m,n) = (3,2)+(4,3) are added to the field line Hamiltonian for the ASDEX UG. An area-preserving map for the field line trajectories in the ASDEX UG is used. The common amplitude δ of these modes that gives complete chaos between the resonant surfaces ψ43 and ψ32 is determined. A magnetic barrier is built at a surface with noble q that is very nearly equals to the q at the physical midpoint between the two resonant surfaces. The maximum amplitude of magnetic perturbation for which this barrier can be sustained is determined. This work is supported by US Department of Energy grants DE-FG02-07ER54937, DE-FG02-01ER54624 and DE-FG02-04ER54793.

  7. Cultura indígina e identidade nacional

    Directory of Open Access Journals (Sweden)

    Maria Vitória Silva Paiva

    2016-12-01

    Full Text Available A ideia de uma identidade nacional foi sendo construída; não havia, inicialmente, um Brasil como hoje conhecemos. Essa noção começa a se solidificar entre os anos de 1940 a 1950. As pessoas se identificavam pelo local onde nasciam, onde sua família estava enraizada, não pela sua nacionalidade. A história do país foi e é construída por um processo contínuo de inclusão-exclusão, o que faz com que diferentes grupos sociais e identitários continuem num processo de busca pela sua afirmação, em especial os indígenas e a população afro-brasileira. A metodologia utilizada na construção deste artigo foi a pesquisa bibliográfica e a pesquisa de campo, tanto atuando como psicóloga no grupo de saúde mental que existe dentro da aldeia Jaraguá, em São Paulo, como nas visitas às aldeias Guarani de Paraty, Rio de Janeiro, e entrevistas com três indígenas, das etnias Guarani, Pitaguary e Tibiriça.

  8. {sup 137}Cs in northern Adriatic sediments

    Energy Technology Data Exchange (ETDEWEB)

    Barisic, D; Lulic, S; Vdovic, N; Vertacnik, A [Center for Marine Research - Department Zagreb, ' Ruder Boskovic' Institute, Zagreb (Croatia); Juracic, M [Department of Geology, Faculty of Natural Sciences, University of Zagreb, Zagreb (Croatia)

    1996-01-01

    The activity of {sup 137}Cs in shallow northern Adriatic sediments was obtained on the basis of measurement results from 25 sediment box cores, sampled during the Adriatic Scientific COoperation Program (ASCOP) 16 cruise in the summer 1990. {sup 137}Cs was determined in surface sediments (0-3 cm) and 12-15 cm-deep sediment. It was found that the lowest caesium concentrations correspond to sands, which are spread along the Croatian coast. Parallel to the Italian coast, {sup 137}Cs concentrations in pelites are the highest. It seems that the influence of Po River is significant for {sup 137}Cs activities in recent marine sediments along Italian coast south of Po River delta. Significantly higher {sup 137}Cs activities in 0-3 cm sediment layer can be attributed to the deposition caused by Chernobyl accident. (author)

  9. 137Cs in northern Adriatic sediments

    International Nuclear Information System (INIS)

    Barisic, D.; Lulic, S.; Vdovic, N.; Vertacnik, A.; Juracic, M.

    1996-01-01

    The activity of 137 Cs in shallow northern Adriatic sediments was obtained on the basis of measurement results from 25 sediment box cores, sampled during the Adriatic Scientific COoperation Program (ASCOP) 16 cruise in the summer 1990. 137 Cs was determined in surface sediments (0-3 cm) and 12-15 cm-deep sediment. It was found that the lowest caesium concentrations correspond to sands, which are spread along the Croatian coast. Parallel to the Italian coast, 137 Cs concentrations in pelites are the highest. It seems that the influence of Po River is significant for 137 Cs activities in recent marine sediments along Italian coast south of Po River delta. Significantly higher 137 Cs activities in 0-3 cm sediment layer can be attributed to the deposition caused by Chernobyl accident. (author)

  10. Cs2UPd3Se6

    Directory of Open Access Journals (Sweden)

    George N. Oh

    2011-02-01

    Full Text Available Dicaesium uranium(IV tripalladium(II hexaselenide, Cs2UPd3Se6, crystallizes in the space group Fmmm in the Ba2NaCu3O6 structure type. The asymmetric unit comprises the following atoms with site symmetries as shown: U1 (mm2, Cs1 (222, Cs2 (m2m, Pd1 (.m., Pd2 (2mm, Se1 (m.., and Se2 (1. This layered structure contains six edge-sharing square-planar [PdSe4] units that form a hexagon. These, in turn, edge-share with [USe6] trigonal–prismatic units, forming an extended layer parallel to (010. The layers are stacked along [010]. They are staggered, and are separated by the Cs atoms. The Cs atoms are either coordinated in a square antiprism of Se atoms or are ten-coordinate, with one square face and the opposite face hexagonal.

  11. IndElec: A Software for Analyzing Party Systems and Electoral Systems

    Directory of Open Access Journals (Sweden)

    Francisco Ocaña

    2011-08-01

    Full Text Available IndElec is a software addressed to compute a wide range of indices from electoral data, which are intended to analyze both party systems and electoral systems in political studies. Further, IndElec can calculate such indices from electoral data at several levels of aggregation, even when the acronyms of some political parties change across districts. As the amount of information provided by IndElec may be considerable, this software also aids the user in the analysis of electoral data through three capabilities. First, IndElec automatically elaborates preliminary descriptive statistical reports of computed indices. Second, IndElec saves the computed information into text files in data matrix format, which can be directly loaded by any statistical software to facilitate more sophisticated statistical studies. Third, IndElec provides results in several file formats (text, CSV, HTML, R to facilitate their visualization and management by using a wide range of application softwares (word processors, spreadsheets, web browsers, etc.. Finally, a graphical user interface is provided for IndElec to manage calculation processes, but no visualization facility is available in this environment. In fact, both the inputs and outputs for IndElec are arranged in files with the aforementioned formats.

  12. Desigualdades na mortalidade por suicídio entre indígenas e não indígenas no estado do Amazonas, Brasil

    Directory of Open Access Journals (Sweden)

    Maximiliano Loiola Ponte de Souza

    2013-12-01

    Full Text Available OBJETIVO: Analisar as taxas e algumas características da mortalidade por suicídio entre indígenas e não indígenas no Amazonas. MÉTODO: Estudo de coorte retrospectiva, em que os dados de óbito foram obtidos no Sistema de Informações sobre Mortalidade e os populacionais no Instituto Brasileiro de Geografia e Estatística. Foram utilizados todos os registros de suicídio do período de 2006-2010 e a interpolação geométrica anual para a estimação das subpopulações. RESULTADOS: Ocorreram 688 suicídios no Amazonas, dos quais 19,0% em indígenas. A taxa ajustada de mortalidade por suicídio (TAMS nos indígenas, de 18,4/100 mil, foi 4,4 vezes superior a dos não indígenas. A TAMS em indígenas aumentou 1,6 vez em 2010 em relação a 2006. Nos municípios de Tabatinga e São Gabriel da Cachoeira, as TAMS foram muito altas, 75,8 e 41,9/100 mil, respectivamente. CONCLUSÕES: Evidenciou-se o comportamento desigual das taxas de mortalidade por suicídio entre indígenas e não indígenas, expondo não só sua importância local, como também sua invisibilidade como problema de saúde pública, principalmente entre jovens 15 e 24 anos.

  13. Biokinetic model for 137 Cs

    International Nuclear Information System (INIS)

    Melo, Dunstana Rabelo de

    1995-01-01

    The main objective of this work was to provide a realistic biokinetic model for 137 Cs metabolism. This model was based on the retention of cesium in 57 people contaminated in the Goiania accident, ages 1 to 73 y old, complemented by data obtained in an experiment with beagle dogs, and data taken from the open literature. Cesium is distributed among all tissues and organs of the body. Its main retention site is the skeletal muscle tissue. Mathematically, cesium retention in the body may be described by a sum of three terms exponential equation. The first term represents the fraction which is rapidly eliminated in urine. This fraction is weight dependent (negative correlation). The second term represents the retention of cesium in tissues and organs of the body. For children and adolescents, the second term biological half-life is a function of the weight. For adults, it is correlated with sex. Men present a higher retention of cesium than women. The third term correspond to a retention fraction of the order of 0,1% of the initial body burden. It is characterized by a very long half-life and represents a subcellular retention of cesium in the skeletal muscle tissue. During pregnancy the transfer factor from the mother to the fetus is correlated to the amount of cesium in the blood and it is equal to 1, if the intake of cesium occurs pregnancy. (author)

  14. Analysis of 137Cs radionuclides activities in Cs-zeolite using gamma spectrometry

    International Nuclear Information System (INIS)

    Noviarty; Ginting, Aslina Br; Anggraini, Dian; Rosika K

    2013-01-01

    137 Cs Radionuclide activity analysis has been carried out. The objective is to determine the activity of the 137 Cs radionuclide in Cs-zeolite are packaged in the form of point source. Analysis of 137 Cs Radionuclide activities in Cs zeolite samples was determined by measuring intensity of the isotope 137 Cs gamma energy at 661.7 keV use-y spectrometer. Before measurement the sample, was first carried out measurements of 137 Cs radionuclide in certified point standards from Amersham, to determine the efficiency value. Result the standard sample measurement obtained the efficiency value of 43.98%. Efficiency values obtained are used in the calculation of sample activity. On the measurement of the intensity of the sample obtained results dose rate 196.4537 cps with a standard deviation of 0.5274. By using standard measurement efficiency values obtained by the calculation of the average activity of the radionuclide 137 Cs in Cs-zeolite 524.9082 Bq. Deviation measurements were below 5% (0.27% ) so that the analysis of the activity of radionuclide 137 Cs in Cs-zeolite samples using gamma spectrometer can be accepted with a 95% confidence level. (author)

  15. A novel vanadosilicate with hexadeca-coordinated Cs+ ions as a highly effective Cs+ remover

    International Nuclear Information System (INIS)

    Datta, Shuvo Jit; Moon, Won Kyung; Choi, Do Young; Hwang, In Chul; Yoon, Kyung Byung

    2014-01-01

    The effective removal of 137 Cs + ions from contaminated groundwater and seawater and from radioactive nuclear waste solutions is crucial for public health and for the continuous operation of nuclear power plants. Various 137 Cs + removers have been developed, but more effective 137 Cs + removers are still needed. A novel microporous vanadosilicate with mixed-valence vanadium (V 4+ and V 5+ ) ions is now reported, which shows an excellent ability for Cs + capture and immobilization from groundwater, seawater, and nuclear waste solutions. This material is superior to other known materials in terms of selectivity, capacity, and kinetics, and at very low Cs + concentrations, it was found to be the most effective material for the removal of radioactive Cs + ions under the test conditions. This novel vanadosilicate also contains hexadeca-coordinated Cs + ions, which corresponds to the highest coordination number ever described.

  16. Molecular CsF{sub 5} and CsF{sub 2}{sup +}

    Energy Technology Data Exchange (ETDEWEB)

    Rogachev, Andrey Yu. [Illinois Institute of Technology, IL (United States). Dept. of Biological and Chemical Sciences; Miao, Mao-sheng [California State Univ., Northridge, CA (United States). Dept. of Chemistry and Biochemistry; Beijing Computational Science Research Center (China); Merino, Gabriel [Centro de Investigacion y de Estudios Avanzados, Unidad Merida (Mexico). Dept. de Fisica Aplicada; Hoffmann, Roald [Cornell Univ., Ithaca, NY (United States). Dept. of Chemistry and Chemical Biology

    2015-07-06

    D{sub 5h} star-like CsF{sub 5}, formally isoelectronic with known XeF{sub 5}{sup -} ion, is computed to be a local minimum on the potential energy surface of CsF{sub 5}, surrounded by reasonably large activation energies for its exothermic decomposition to CsF + 2F{sub 2}, or to CsF{sub 3} (three isomeric forms) + F{sub 2}, or for rearrangement to a significantly more stable isomer, a classical Cs{sup +} complex of F{sub 5}{sup -}. Similarly the CsF{sub 2}{sup +} ion is computed to be metastable in two isomeric forms. In the more symmetrical structures of these molecules there is definite involvement in bonding of the formally core 5p levels of Cs.

  17. Harvard Catalyst | The Clinical Translational Science Center IND/IDE Consult Service: Providing an IND/IDE Consult Service in a Decentralized Network of Academic Healthcare Centers

    Science.gov (United States)

    Winkler, Sabune J.; Bierer, Barbara E.; Wolf, Delia

    2014-01-01

    Abstract The Food and Drug Administration (FDA) regulations require sponsors of clinical investigations involving an investigational drug or device to submit an Investigational New Drug (IND) or Investigational Device Exemption (IDE) application. Strict adherence to applicable regulations is vital to the success of clinical research. Unlike most major pharmaceutical sponsors, investigator sponsors often do not fully appreciate their regulatory obligations nor have resources to ensure compliance. As a result they can place themselves and their institutions at risk. Nevertheless, investigator‐initiated clinical trials are vital to the further development of innovative drugs, biologics, and medical devices. The IND/IDE Subcommittee under the Regulatory Knowledge and Support Program at Harvard Catalyst, The Harvard Clinical and Translational Science Center worked in collaboration with Harvard and Harvard affiliated institutions to create and launch an IND/IDE Consult Service in a decentralized network of collaborating Academic Healthcare Centers (AHC). The IND/IDE Consult Service offers expertise, resources, and shared experiences to assist sponsor‐investigators and IRBs in meeting regulatory requirements for conducting and reviewing investigator‐initiated IND/IDE studies. The scope of the services provided by the Harvard Catalyst IND/IDE Consult Service are described, including the specifics of the service, lessons learned, and challenges faced, in a scalable model that builds inter‐institutional capacity. PMID:24455986

  18. Harvard Catalyst | The Clinical Translational Science Center IND/IDE Consult Service: providing an IND/IDE consult service in a decentralized network of academic healthcare centers.

    Science.gov (United States)

    Kim, Min J; Winkler, Sabune J; Bierer, Barbara E; Wolf, Delia

    2014-04-01

    The Food and Drug Administration (FDA) regulations require sponsors of clinical investigations involving an investigational drug or device to submit an Investigational New Drug (IND) or Investigational Device Exemption (IDE) application. Strict adherence to applicable regulations is vital to the success of clinical research. Unlike most major pharmaceutical sponsors, investigator sponsors often do not fully appreciate their regulatory obligations nor have resources to ensure compliance. As a result they can place themselves and their institutions at risk. Nevertheless, investigator-initiated clinical trials are vital to the further development of innovative drugs, biologics, and medical devices. The IND/IDE Subcommittee under the Regulatory Knowledge and Support Program at Harvard Catalyst, The Harvard Clinical and Translational Science Center worked in collaboration with Harvard and Harvard affiliated institutions to create and launch an IND/IDE Consult Service in a decentralized network of collaborating Academic Healthcare Centers (AHC). The IND/IDE Consult Service offers expertise, resources, and shared experiences to assist sponsor-investigators and IRBs in meeting regulatory requirements for conducting and reviewing investigator-initiated IND/IDE studies. The scope of the services provided by the Harvard Catalyst IND/IDE Consult Service are described, including the specifics of the service, lessons learned, and challenges faced, in a scalable model that builds inter-institutional capacity. © 2014 Wiley Periodicals, Inc.

  19. Representantes y representaciones indígenas en el altiplano occidental de Guatemala

    OpenAIRE

    Celigueta, Gemma

    2014-01-01

    Este artículo se pregunta por la relación entre una representación política indígena y las representaciones existentes sobre dicho grupo. En concreto, demuestra la relación entre el concurso de Reina indígena del municipio de Quetzaltenango y la representación política indígena en la municipalidad. Además, los avatares del concurso permiten adentrarnos en el movimiento indígena de la segunda mitad del siglo XX. Un movimiento que plantea una redefinición de lo indígena y de su papel en las nac...

  20. Transfer of 137Cs to wild vegetables

    International Nuclear Information System (INIS)

    Ito, Nobuhiko; Natsuhori, Masahiro; Mezawa, Akane; Kawakami, Akira

    1998-01-01

    For the evaluation of internal radiation dose, it is needed to estimate the amount of radionuclide incorporated to human body using a simulation model. 137 Cesium (Cs) is easily transferred associating with food intake as well as potassium and so, Cs is an important nuclide for evaluation of internal radiation. 137 Cs concentrations in wild vegetables are higher than those of cultured vegetables and milk. Therefore, the transfer coefficients of 137 Cs from soil to wild vegetables were estimated in this study. Wild vegetables and soils of their farms were collected in the Hakkoda Mountain range of Aomori Prefecture. The levels of 137 Cs in wild vegetables were 0.42-18.35 (Bq/kg), whereas those in cabbage and spinach were 0.08 and 0.01 (Bq/kg), respectively, indicating that the Cs level is dozens to several hundreds times higher in wild vegetables than cultured ones. And the transfer coefficient was estimated as 0.003-0.94 for the former and 0.001-0.8 for the latter. On the other hand, 1 37 Cs levels of the soils on which wild vegetables grew was 28.0 Bq/kg and it was 3.9 Bq/kg for the farm soil. Furthermore, the effects of water content and pH of the soil on the transfer coefficient were studied. (M.N.)

  1. Potential value of Cs-137 capsules

    Energy Technology Data Exchange (ETDEWEB)

    Bloomster, C.H.; Brown, D.R.; Bruno, G.A.; Hazelton, R.F.; Hendrickson, P.L.; Lezberg, A.J.; Tingey, G.L.; Wilfert, G.L.

    1985-04-01

    We determined the value of Cs-137 compared to Co-60 as a source for the irradiation of fruit (apples and cherries), pork and medical supplies. Cs-137, in the WESF capsule form, had a value of approximately $0.40/Ci as a substitute for Co-60 priced at approximately $1.00/Ci. The comparison was based on the available curies emitted from the surface of each capsule. We developed preliminary designs for fourteen irradiation facilities; seven were based on Co-60 and seven were based on Cs-137. These designs provided the basis for estimating capital and operating costs which, in turn, provided the basis for determining the value of Cs-137 relative to Co-60 in these applications. We evaluated the effect of the size of the irradiation facility on the value of Cs-137. The cost of irradiation is low compared to the value of the product. Irradiation of apples for disinfestation costs $.01 to .02 per pound. Irradiation for trichina-safe pork costs $.02 per pound. Irradiation of medical supplies for sterilization costs $.07 to .12 per pound. The cost of the irradiation source, either Co-60 or Cs-137, contributed only a minor amount to the total cost of irradiation, about 5% for the fruit and hog cases and about 20% for the medical supply cases. We analyzed the sensitivity of the irradiation costs and Cs-137 value to several key assumptions.

  2. Potential value of Cs-137 capsules

    International Nuclear Information System (INIS)

    Bloomster, C.H.; Brown, D.R.; Bruno, G.A.; Hazelton, R.F.; Hendrickson, P.L.; Lezberg, A.J.; Tingey, G.L.; Wilfert, G.L.

    1985-04-01

    We determined the value of Cs-137 compared to Co-60 as a source for the irradiation of fruit (apples and cherries), pork and medical supplies. Cs-137, in the WESF capsule form, had a value of approximately $0.40/Ci as a substitute for Co-60 priced at approximately $1.00/Ci. The comparison was based on the available curies emitted from the surface of each capsule. We developed preliminary designs for fourteen irradiation facilities; seven were based on Co-60 and seven were based on Cs-137. These designs provided the basis for estimating capital and operating costs which, in turn, provided the basis for determining the value of Cs-137 relative to Co-60 in these applications. We evaluated the effect of the size of the irradiation facility on the value of Cs-137. The cost of irradiation is low compared to the value of the product. Irradiation of apples for disinfestation costs $.01 to .02 per pound. Irradiation for trichina-safe pork costs $.02 per pound. Irradiation of medical supplies for sterilization costs $.07 to .12 per pound. The cost of the irradiation source, either Co-60 or Cs-137, contributed only a minor amount to the total cost of irradiation, about 5% for the fruit and hog cases and about 20% for the medical supply cases. We analyzed the sensitivity of the irradiation costs and Cs-137 value to several key assumptions

  3. 137Cs distribution in guava trees

    International Nuclear Information System (INIS)

    Mosquera, B.; Veiga, R.; Mangia, L.; Carvalho, C.; Estellita, L.; Uzeda, D.; Facure, A.; Violini, B.; Anjos, R.M.

    2004-01-01

    This paper presents results of 137 Cs concentration measured from a guava tree cultivated after the first decontamination work of one of the sites where the worst Brazilian radiological accident occurred. The present work aims to verify how the 137 Cs is transported and distributed along the tropical trees. Bi-dimensional analyses of the radial distribution of 137 Cs in the main trunk are also presented. Neither symmetrical nor homogeneous behaviors of the specific activity distribution in the tree rings were observed. (author)

  4. {sup 137}Cs distribution in guava trees

    Energy Technology Data Exchange (ETDEWEB)

    Mosquera, B.; Veiga, R.; Mangia, L.; Carvalho, C.; Estellita, L.; Uzeda, D.; Facure, A.; Violini, B.; Anjos, R.M. [Universidade Federal Fluminense, Niteroi, RJ (Brazil). Inst. de Fisica

    2004-09-15

    This paper presents results of {sup 137}Cs concentration measured from a guava tree cultivated after the first decontamination work of one of the sites where the worst Brazilian radiological accident occurred. The present work aims to verify how the {sup 137}Cs is transported and distributed along the tropical trees. Bi-dimensional analyses of the radial distribution of {sup 137}Cs in the main trunk are also presented. Neither symmetrical nor homogeneous behaviors of the specific activity distribution in the tree rings were observed. (author)

  5. CsI and some new photocathodes

    International Nuclear Information System (INIS)

    Anderson, D.F.; Kwan, S.; Peskov, V.

    1993-06-01

    A discussion of the possible sources of discrepancies in the measurements of the quantum efficiency of CsI photocathodes is presented. We propose that the major causes for disagreements in QE are due to the QE dependence on the current density extracted from the photocathode, on the electric field, and on the temperature of the photocathode. Preliminary results on TMAE enhanced GaAs and Si, plus TMAE protected CsTe and SbCs photocathodes, operated in gas, are also presented

  6. Coordination polyhedra CsCln in crystals

    International Nuclear Information System (INIS)

    Serezhkin, V.N.; Serezhkina, L.B.

    1999-01-01

    Characteristics of the Voronoi-Dirichlet polyhedrons are estimated for 133 crystallographic cesium atoms in chlorides Cs x M y Cl z (M=Cd, Sc, V, Nb, Mo, W, Ru, Re, etc.). It is found that cesium atoms have coordination numbers 6,8,9,10, 11 and 12 as regards the chlorine atoms. The results of cesium atom coordination sphere examination by the crossing spheres method are presented. Metal-metal interactions (including Cs-Cs) in the structure of certain chlorides are revealed

  7. Regeneration of Used Frying Palm Oil with Coffee Silverskin (CS), CS Ash (CSA) and Nanoparticles of CS (NCS).

    Science.gov (United States)

    Ismail, Samir Abd-Elmonem A; El-Anany, Ayman Mohammed; Ali, Rehab Farouk M

    2017-01-01

    The present investigation aimed to evaluate the efficiency of coffee silverskin (CS), CS ash (CSA) and nanoparticles of CS (NCS) in regeneration the quality of used frying palm oil. The adsorbents were mixed individually with used frying palm oil at level 4% (w/v) for 60 min. The properties of CS, CSA and NCS adsorbents were studied using (SEM) scanning electron microscopy technique. Some of physico-chemical characteristics of used frying palm oil (UFPO) and UFPO treated with adsorbents were determined. The results showed that the CS ash particles composed of irregular spherical and semispherical grains with deep cavities. The size of particles of CS ash ranged in diameter from 1.1 to 1.7 µm. The morphology of NCS consisted of cluster-type spherical nanoparticles and flakes. The particle size of NCS varies from 0.9 to 1.7 µm. Purification treatments caused marked (poil compared to untreated oil. The treatment of UFPO with 4% of adsorbents caused significant reductions in the content of free fatty acids ranged from 51.2 to 65.0%. The lowest level of peroxide (2.1 meq/kg) was recorded for UFPO treated with 4% of NCS. The highest reductions (72.8; 70.0%) in p-anisidine value were observed in UFPO treated with 4% of CSA and NCS, respectively. Treatment of UFPO with 4% of CS, CSA and NCS significantly lowered the polar content from 13.9% to 6.3, 4.8 and 3.9%, respectively. The results also indicate that CSA and NCS have nearly the same adsorption efficiency in lowering polymer content of UFPO. Filtration treatment of UFPO with 4% of CS, CSA and NCS markedly lowered the viscosity and colour values of treated UFPO.

  8. [Energy pooling collisions for K(4P) + Cs(5D) in a K-Cs mixture].

    Science.gov (United States)

    Aihemaiti, Pulati; Dai, Kang; Lu, Xin-hong; Shen, Yi-fan

    2005-04-01

    The rate coefficients for energy-pooling collisions K(4P) + Cs(5D) --> Cs(6S) + K(4D, 6S) in the K-Cs vapor mixture were measured relative to a known energy-pooling rate coefficient of a homonuclear reaction [i. e., Cs(6P) + Cs(5D) --> Cs(6S) + Cs (7D(J))]. Populations of the Cs(6P, 5D) and K(4P) states were produced by photodissociation of K2 and Cs2 molecules through the use of a dye laser radiation. The resulting fluorescence included the direct components emitted in the decay of the excited states produced by photodissociation and the induced components arising from the collisionally populated states. By combining relative intensities of the components with the effective lifetimes of Cs(6P) and K(4P) states, the rate coefficients (in units of 10(-9) cm3 x s(-1)) for the heteronuclear energy-pooling were found to be 2.6 and 3.6, respectively. The contribution to the rate coefficients from other processes are discussed.

  9. Properties of Cs-intercalated single wall carbon nanotubes investigated by 133Cs Nuclear Magnetic resonance

    KAUST Repository

    Schmid, Marc R.

    2012-11-01

    In the present study, we investigated Cs-intercalated single wall carbon nanotubes (SWCNTs) using 133Cs Nuclear Magnetic resonance. We show that there are two types of Cs cations depending on the insertion level. Indeed, at low concentrations, Static spectra analysis shows that the Cs (α)+ species are fully ionized, i.e. α equal ca.1, while at higher concentrations a second paramagnetically shifted line appears, indicating the formation of Cs (β)+ ions with β < α ∼ +1. At low concentrations and low temperatures the Cs (α)+ ions exhibit a weak hyperfine coupling to the SWCNT conduction electrons, whereas, at higher temperatures, a thermally activated slow-motion diffusion process of the Cs (α)+ ions occurs along the interstitial channels present within the carbon nanotube bundles. At high concentrations, the Cs (β)+ ions seem to occupy well defined positions relative to the carbon lattice. As a matter of fact, the Korringa relaxation behavior suggests a strong hyperfine coupling between Cs nuclei and conduction electrons in the carbon nanotubes and a partial charge transfer, which suggest a plausible Cs(6s)-C(2p) hybridization. © 2012 Elsevier Ltd. All rights reserved.

  10. El misionero ante las culturas Indígenas

    Directory of Open Access Journals (Sweden)

    Gerardo Reichel Dolmatoff

    2013-11-01

    Full Text Available La presente comunicación tiene por objeto describir, desde el punto de vista , algunos aspectos del contacto cultural entre el Misionero y el Indígena.  Referiré principalmente a aquellos factores que son negativos y  en estas situaciones de contacto, es decir, mi comunicación critica a un sistema y aun complejo de actividades prevalentes. Al hablar como , es que no nos entendamos en algunos puntos; pero al hablar  defensa del indio, estoy seguro de que ustedes concordarán conmigo pues voy  hablar del hombre, de este ser que es el centro de nuestras preocupaciones y  es la base y razón de nuestro común esfuerzo.

  11. Between Two Empires. Histoire des deux Indes And Modern Colonialism

    Directory of Open Access Journals (Sweden)

    Alessandro Pandolfi

    2013-07-01

    Full Text Available The article critically analyses the late eighteenth century process of crisis and transformation of the concept of empire. By considering Raynal’s Histoire des deux Indes and the Enlightenment’s critique of the different imperial models, Pandolfi reconstructs the transit from classic colonialism – built around the relations between settlers, savages and slaves – to another phase characterized by the indirect exploitation of the labour force. The text underlines the ambivalence of Enlightenment towards the question of the empire by demonstrating how Raynal’s work reflects the constitutive tension of the second half of the 1700s. Therefore, through Diderot’s analysis, the author demonstrates how the moral advancement of humanity is the product of a constant interaction between the colonial rhetoric of commerce and those revolutions, which, – in different moments and places – have crossed the colonial space.

  12. Advanced MicroObserver UGS integration with and cueing of the BattleHawk squad level loitering munition and UAV

    Science.gov (United States)

    Steadman, Bob; Finklea, John; Kershaw, James; Loughman, Cathy; Shaffner, Patti; Frost, Dean; Deller, Sean

    2014-06-01

    Textron's Advanced MicroObserver(R) is a next generation remote unattended ground sensor system (UGS) for border security, infrastructure protection, and small combat unit security. The original MicroObserver(R) is a sophisticated seismic sensor system with multi-node fusion that supports target tracking. This system has been deployed in combat theaters. The system's seismic sensor nodes are uniquely able to be completely buried (including antennas) for optimal covertness. The advanced version adds a wireless day/night Electro-Optic Infrared (EOIR) system, cued by seismic tracking, with sophisticated target discrimination and automatic frame capture features. Also new is a field deployable Gateway configurable with a variety of radio systems and flexible networking, an important upgrade that enabled the research described herein. BattleHawkTM is a small tube launched Unmanned Air Vehicle (UAV) with a warhead. Using transmitted video from its EOIR subsystem an operator can search for and acquire a target day or night, select a target for attack, and execute terminal dive to destroy the target. It is designed as a lightweight squad level asset carried by an individual infantryman. Although BattleHawk has the best loiter time in its class, it's still relatively short compared to large UAVs. Also it's a one-shot asset in its munition configuration. Therefore Textron Defense Systems conducted research, funded internally, to determine if there was military utility in having the highly persistent MicroObserver(R) system cue BattleHawk's launch and vector it to beyond visual range targets for engagement. This paper describes that research; the system configuration implemented, and the results of field testing that was performed on a government range early in 2013. On the integrated system that was implemented, MicroObserver(R) seismic detections activated that system's camera which then automatically captured images of the target. The geo-referenced and time-tagged Micro

  13. Estado nacional y nacionalidades indígenas.

    Directory of Open Access Journals (Sweden)

    José Mauro Gagliardi

    2011-08-01

    Full Text Available Cuando se estudian los pueblos indígenas de Brasil la primera cosa que se constata es su reducción de mayoría a minoría. Los traslados del interior para el litoral, las matanzas y las epidemias son hechos que sirven para ilustrar ese proceso de exterminación. A partir del siglo XVIII, com la administración pombalina se inició la formación delEstado Nacional que de forma planificada impuso a los indios una forma de actuar y de pensar. La finalidad del reglamento sobre las misiones de catequesis y civilización de los indios de 1845 era también la de incorporarlos a los patrones de vida occidentales. Se trataba de preparar a esos pueblos para un tipo de trabajo uniformado, hablando la lengua nacional, como una conciencia económica y cultural homogénea. Durante el periodo republicano, los mecanismos de integración de los pueblos indígenas a la sociedad nacional se hicieron todavía más eficaces. Si tomamos como referencia la formación del Estado Nacional verificaremos que es una tendencia de esa forma de organización política la de uniformizar las relaciones sociales y disolver la diversidad cultural. El estudio de ese fenómeno ayudará para la comprensión más profunda de las relaciones entre los indios y la sociedad brasileña y probablemente ayudará a programar estrategias que aseguren la vida de aquellos que todavía sobreviven.

  14. 135Cs activity and 135Cs/137Cs atom ratio in environmental samples before and after the Fukushima Daiichi Nuclear Power Plant accident.

    Science.gov (United States)

    Yang, Guosheng; Tazoe, Hirofumi; Yamada, Masatoshi

    2016-04-07

    (135)Cs/(137)Cs is a potential tracer for radiocesium source identification. However, due to the challenge to measure (135)Cs, there were no (135)Cs data available for Japanese environmental samples before the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident. It was only 3 years after the accident that limited (135)Cs values could be measured in heavily contaminated environmental samples. In the present study, activities of (134)Cs, (135)Cs, and (137)Cs, along with their ratios in 67 soil and plant samples heavily and lightly contaminated by the FDNPP accident were measured by combining γ spectrometry with ICP-MS/MS. The arithmetic means of the (134)Cs/(137)Cs activity ratio (1.033 ± 0.006) and (135)Cs/(137)Cs atom ratio (0.334 ± 0.005) (decay corrected to March 11, 2011), from old leaves of plants collected immediately after the FDNPP accident, were confirmed to represent the FDNPP derived radiocesium signature. Subsequently, for the first time, trace (135)Cs amounts before the FDNPP accident were deduced according to the contribution of global and FDNPP accident-derived fallout. Apart from two soil samples with a tiny global fallout contribution, contributions of global fallout radiocesium in other soil samples were observed to be 0.338%-52.6%. The obtained (135)Cs/(137)Cs database will be useful for its application as a geochemical tracer in the future.

  15. New technology of CRDM-CS

    International Nuclear Information System (INIS)

    Yasushi Nozaki; Hiroyuki Ukon; Toshiaki Matsumura; Yoshihiro Sakurai; Sigenori Hatazawa; Hitoshi Yamagishi; Katsuji Kaneizumi; Hisashi Yasuda

    2005-01-01

    Control Rod Drive Mechanism Control System (CRDM-CS) for PWR Nuclear Power Plant was developed as a domestic product in 1975 and it has been applied to the commercial power plants. Since then, the CRDM-CS has been continuously improved through applying a double-hold-system, an intensified monitoring system, etc. As the result of these modifications unexpected rod drops have never occurred more than ten years in Japanese PWR plants. The system is still so high reliable, however, the technologies of employed devices are old-fashioned and we face on the difficulty to keep spare-parts these days. On the other hand, there are new movements to seek after the plant life extension of 60 years. These situations require a modernized CRDM-CS to accomplish the reliability in accordance to the plant life extension. to comply the above-mentioned object we developed a new CRDM-CS applied with following technologies; 1) Digitalized logic cabinet, 2) I.G.B.T in the main circuit of power cabinet, 3) Standardized cabinet by employing the unit structure, 4) Unnecessary DC hold power cabinet. These measures can play an important role in cost cutting and space reduction in replacing CRDM-CS. The concepts in developing the new CRDM-CS, the applied technologies to the power cabinet, the system structure and characteristics of the logic cabinet and the outline of verification test and result are discussed in this paper. (authors)

  16. Fast CsI-phoswich detector

    International Nuclear Information System (INIS)

    Langenbrunner, J.R.

    1996-01-01

    An improved phoswich radiation detector used pure CsI crystal and a fast plastic scintillator and a single photomultiplier tube. The plastic is arranged to receive incident radiation, and that which passed through then strikes the CsI crystal. Scintillation light from both the plastic and CsI crystal are applied to the photomultiplier tube, with the light from the plastic passing through the crystal without absorption therein. Electronics are provided for analyzing the output of the photomultiplier tube to discriminate responses due to the plastic and the CsI crystal, through short gate and long gate integration, to produce results which are indicative of the characteristics of the different types of incident radiation, even in the presence of large amounts of radiation. The phoswich detector has excellent timing resolution. The scintillators of the CsI- phoswich were chosen for their fast risetimes, of about 3 ns for NE102A, and 30 ns for the pure CsI. 5 figs

  17. 137Cs metabolism in pregnant women

    International Nuclear Information System (INIS)

    Melo, D.R.; Lipsztein, J.L.; Oliveira, C.A.N.; Bertelli, L.

    2000-01-01

    Data from two pregnant women contaminated with 137 Cs, body burdens of 0.2 and 300 MBq, respectively at the time of the Goiania accident, were compared. The first one, with lower body burden was exposed during the fourth month of pregnancy, while the second became pregnant three years and eight months after 137 Cs intake. For the first woman 137 Cs concentrations were equal for the mother, infant and placenta, indicating an easy and homogeneous transport of 137 Cs from mother to foetus. The whole body monitoring data from the second woman, who became pregnant four years after intake, did not show a reduction in biological half-life during the pregnancy. Cs concentration in the mother was found to be 13 times higher than in the infant. One possible reason for this result is that four years after intake, Cs is supposed to be concentrated mainly in skeletal muscle tissue. During the pregnancy the blood flux becomes higher in most of the organs and tissues except brain, liver and skeletal muscle tissue. (author)

  18. Concentration of 134Cs and 137Cs in Malaysian palm products

    International Nuclear Information System (INIS)

    Yii Mei Wo; Nor Aza Hassan; Narizan Sanusi

    2008-08-01

    Until today, countries importing food products from Malaysia, in region such as Indian Continental, Middle East, Central Europe and Central America still require the products to be tested for the radioactive contamination particularly for 134 Cs and 137 Cs. Information extracted from 3371 analytical results observed on isotopic concentration for 134 Cs and 137 Cs in the exported Malaysia origins palm products between years 2002 until 2007 had been summarized and reported in this work. Data shown that the concentration level of the concerned radio nuclides are below the minimum detectable activity and also well below maximum permissible limits adopted by Malaysian Government and also the international bodies. (Author)

  19. Indústrias criativas: definição, limites e possibilidades

    OpenAIRE

    Bendassolli,Pedro F.; Wood Jr.,Thomaz; Kirschbaum,Charles; Cunha,Miguel Pina e

    2009-01-01

    O termo "indústrias criativas" surgiu nos anos 1990, para designar setores nos quais a criatividade é uma dimensão essencial do negócio. As indústrias criativas compreendem, entre outras, as atividades relacionadas ao cinema, ao teatro, à música e às artes plásticas. Neste artigo introdutório, mostramos o surgimento do termo no âmbito de políticas públicas de desenvolvimento econômico, analisamos a literatura científica sobre as indústrias criativas e procuramos sistematizar as diferentes def...

  20. Perswazyjność komunikatów reklamowych w Internecie na podstawie analizy usług finansowych SKOK-ów

    OpenAIRE

    Idzik, Beata

    2014-01-01

    Praca jest wynikiem kilkuletnich obserwacji praktycznej strony funkcjonowania reklamy w zakresie usług finansowych. Autorka starała się oddać wyraz swojemu zainteresowaniu psychologią konsumenta, marketingiem w sektorze finansowym a także fascynacji możliwościom, jakie stwarzają w tym zakresie nowe technologie oparte na Internecie. Praca ma charakter teoretyczno - badawczy. W założeniach metodologicznych sformułowano problem badawczy, cele oraz cztery hipotezy badawcze, które poddano wery...

  1. Turismo, patrimonio y comunidades indígenas

    Directory of Open Access Journals (Sweden)

    Edna Camila Acero Tinoco

    2018-05-01

    Full Text Available Si bien es cierto que el capital impacta las diversas dinámicas existentes en el comercio, se debe tener en cuenta que la comunidad que habita en cualquier espacio donde se genere ese comercio ha tenido diferentes transformaciones a lo largo del tiempo en búsqueda de sus necesidades, creando medios sociales de comercio a partir de la naturaleza que los rodea (Marx, 1971, p. 37. Una de las actividades económicas que genera transformaciones e impactos es el fenómeno turístico, que a pesar de su orientación productivista lleva consigo una connotación sociológica importante, dada la posibilidad de interacción simbólica entre la visión del consumidor turístico y la del sujeto receptor. Dicha interacción genera intercambios culturales complejos y transformaciones en las dinámicas locales debido a la necesidad naciente de conocer lo desconocido y redescubrir al otro, como una forma de materializar el turismo e industrializar la cultura. Los beneficios económicos del turismo no se convierten en beneficios sociales, pues son diseñados sin conocer la realidad de las comunidades. Así mismo, es inevitable el cambio en los comportamientos generales debido a la transformación de la estructura cultural como consecuencia de los intercambios sociales. El turismo es el que determina cómo deben actuar, comportarse, vestirse, qué deben mostrar y qué pueden vender las comunidades, por lo cual, en la mayoría de las ocasiones, estas maquillan sus cuerpos y buscan recrear el discurso del buen salvaje por medio de la danza, los cantos, las lenguas aborígenes y el aspecto de sumisión. Es por lo anterior que el objetivo de esta investigación es, grosso modo, conocer los impactos que genera la actividad turística en las comunidades indígenas a partir del discurso colonial. Este discurso sigue siendo reproducido como una forma de vender un producto turístico llamado cultura y patrimonio, representado en las diferentes comunidades indígenas del

  2. La diffusion spatiale de l’informatique en Inde

    Directory of Open Access Journals (Sweden)

    Divya Leducq

    2009-09-01

    Full Text Available L’Inde est une puissance émergente qui s’affirme, entre autres, à travers son secteur des services informatiques aux entreprises. Dans ce pays, lesTechnologies de l’Informationet de la Communication (TIC sont perçues comme un moteur de développement. Le modèle du cluster géographique et économiques’est imposé progressivement comme outil d’aménagement dans l’ensemble des politiques sectorielles menées par l’État indien et reprises par les États fédérés. La diffusion de cet outil est liée aux succès qui ont fait la renommée de l’Inde dans le secteur des logiciels, aux bénéfices attendus en matière d’innovation, mais aussi à des raisons pratiques et foncières. Cet article présente à travers un prisme géoéconomique les stratégies de développement successives basées sur la création de clusters TIC multi-échelles,en analysant l’exemple précis de l’État du Kerala.India is an emergent superpower which asserts itself through outsourced services, the so-called “IT industry”. Beyond the fact that InfoTech are seen as a trickle-down development engine, it is the cluster which has become gradually a town planning measure in the sectoral policies followed by the central government and the regional states. The diffusion of this spatial model can be explained by the success stories which made the reputation of India and the expected benefits in terms of innovation. This article analyzes the successive strategies of development based on IT clusters through a geographical and economical prism. The role of the scales and of the actors will be emphasized, while resting on the specific instance of the Kerala state.

  3. Le pétrole en Inde Oil in India

    Directory of Open Access Journals (Sweden)

    Diab E.

    2006-11-01

    Full Text Available L'Inde est un pays riche en ressources énergétiques. En ce qui concerne le pétrole, les réserves prouvées sont déjà abondantes, mais certains pensent qu'il reste un potentiel très important à découvrir, le pays étant un des moins explorés du monde. L'ouverture récente des industries de l'énergie aux capitaux privés et étrangers devrait accélérer le développement de l'exploration, du raffinage et de la pétrochimie. Mais, bien que de nombreux projets aient été approuvés par le gouvernement, la réalisation ne suit pas dans tous les cas, en raison de conditions qui ne sont pas toujours jugées attrayantes par les investisseurs potentiels. Malgré tout, certains pensent que l'Inde sera une puissance égale sinon supérieure à la Chine et qu'elle soutient déjà la comparaison avec les dragons du Sud-Est asiatique. India is a country that is rich in energy resources. Concerning oil, proven reserves are already abundant, but there are some who think that a very large potential remains to be discovered, since the country is one of the least throughly explored in the world. The recent opening up of energy industries to private and foreign capital should speed up the development of exploration, refining and petrochemicals. However, even if numerous projects were to be approved by the Government, actually carrying them out does not always ensue because of conditions that are not always judged to be attractive by potential investors. Despite all this, there are some who think that India will be a power equal to if not greater than China and one that is already upholding the comparison with the Southeast Asian dragons.

  4. Ecología y Salud Indígena

    Directory of Open Access Journals (Sweden)

    Alberto Pinzón Sánchez

    1989-09-01

    Full Text Available

    Uno de los pocos estudios hechos en el país desde el punto de vista de la Salud Pública y realizado en terreno sobre población indígena, es el estudio médico-antropológico de la Amazonia Colombiana realizado por el Doctor Ney Guzmán Gómez, de la Universidad del Valle en 1968. (1

    A pesar de algunas deficiencias en el análisis antropológico, es el primer buen estudio de ese tipo, en donde se combinan los datos cualitativos y cuantitativos del nivel de salud, de un Universo Poblacional de 2.478 personas de las cuales 2.158 (87% eran indígenas, moradores de las riberas de los grandes ríos del trapecio amazónico; Putumayo, Caraparaná, Igaraparaná, Pupuña, Icatué y perteneciente a los grupos étnicos: Witotos, Borás y Ticunas.

    Los indicadores más relevantes y que nos recuerdan la situación del país a comienzos de este siglo, son:

    1. Pirámide poblacional con predominio de menores de 15 años.(54%
    2. Elevadas tasas de natalidad 62 x 1000
    3. Elevada tasa de mortalidad general 20 x 1000 – Con una elevada tasa de mortalidad de menores de una añ0 87 x 1000
    4. Edad media al morir ................................25,5 años
    5. Las principales causas de mortalidad:
    – Gastroenteritis ...................16%
    – Tuberculosis ...............10%
    – Anemia.......... 6%
    – Colitis. ........................... 6%
    – Accidentes de selva............................. 6%
    – Bronconeumonía................................. 4%
    – Sarampión.................................... 2%
    6. Las principales causas de morbilidad clínica fueron:
    – Poli parasitismo intestinal................................... 30%
    – Enfermedades respiratorias............................14%
    – Enfermedades de la piel ............................. 6%
    – Avitaminosis y anemia.............................. 6%
    – Gastroenteritis...................................4

  5. VERA-CS Verification & Validation Plan

    Energy Technology Data Exchange (ETDEWEB)

    Downar, Thomas [Univ. of Michigan, Ann Arbor, MI (United States)

    2017-02-01

    This report summarizes the current status of VERA-CS Verification and Validation for PWR Core Follow operation and proposes a multi-phase plan for continuing VERA-CS V&V in FY17 and FY18. The proposed plan recognizes the hierarchical nature of a multi-physics code system such as VERA-CS and the importance of first achieving an acceptable level of V&V on each of the single physics codes before focusing on the V&V of the coupled physics solution. The report summarizes the V&V of each of the single physics codes systems currently used for core follow analysis (ie MPACT, CTF, Multigroup Cross Section Generation, and BISON / Fuel Temperature Tables) and proposes specific actions to achieve a uniformly acceptable level of V&V in FY17. The report also recognizes the ongoing development of other codes important for PWR Core Follow (e.g. TIAMAT, MAMBA3D) and proposes Phase II (FY18) VERA-CS V&V activities in which those codes will also reach an acceptable level of V&V. The report then summarizes the current status of VERA-CS multi-physics V&V for PWR Core Follow and the ongoing PWR Core Follow V&V activities for FY17. An automated procedure and output data format is proposed for standardizing the output for core follow calculations and automatically generating tables and figures for the VERA-CS Latex file. A set of acceptance metrics is also proposed for the evaluation and assessment of core follow results that would be used within the script to automatically flag any results which require further analysis or more detailed explanation prior to being added to the VERA-CS validation base. After the Automation Scripts have been completed and tested using BEAVRS, the VERA-CS plan proposes the Watts Bar cycle depletion cases should be performed with the new cross section library and be included in the first draft of the new VERA-CS manual for release at the end of PoR15. Also, within the constraints imposed by the proprietary nature of plant data, as many as possible of the FY17

  6. La educación indígena en el Estado de México

    OpenAIRE

    Eduardo Andrés SANDOVAL-FORERO; Bernardino Jaciel Montoya Arce

    2013-01-01

    El artículo analiza de manera general el contexto nacional de la educación convencional indígena y de manera particular la educación indígena en el Estado de México a través de la información estadística del XIII Censo de Población y Vivienda 2010 y de los datos de la Dirección General de Educación Indígena. El examen de las cifras nacional y estatal evidencia en términos relativos un acceso restringido para los indígenas a la educación oficial, lo que demuestra mayor falta de ...

  7. La educación indígena en el Estado de México

    OpenAIRE

    Eduardo Andrés SANDOVAL-FORERO

    2013-01-01

    El artículo analiza de manera general el contexto nacional de la educación convencional indígena y de manera particular la educación indígena en el Estado de México a través de la información estadística del XIII Censo de Población y Vivienda 2010 y de los datos de la Dirección General de Educación Indígena. El examen de las cifras nacional y estatal evidencia en términos relativos un acceso restringido para los indígenas a la educación oficial, lo que demuestra mayor falta de oportunidades y...

  8. Relative injectivity and CS-modules

    Directory of Open Access Journals (Sweden)

    Mahmoud Ahmed Kamal

    1994-01-01

    Full Text Available In this paper we show that a direct decomposition of modules M⊕N, with N homologically independent to the injective hull of M, is a CS-module if and only if N is injective relative to M and both of M and N are CS-modules. As an application, we prove that a direct sum of a non-singular semisimple module and a quasi-continuous module with zero socle is quasi-continuous. This result is known for quasi-injective modules. But when we confine ourselves to CS-modules we need no conditions on their socles. Then we investigate direct sums of CS-modules which are pairwise relatively inective. We show that every finite direct sum of such modules is a CS-module. This result is known for quasi-continuous modules. For the case of infinite direct sums, one has to add an extra condition. Finally, we briefly discuss modules in which every two direct summands are relatively inective.

  9. Separation of 134Cs and 137Cs from 125I solution for medical applications

    International Nuclear Information System (INIS)

    Ram, Ramu; Dash, Ashutosh; Banerjee, Dayamoy

    2015-01-01

    While neutron irradiation of natural Xe gas followed by wet chemical dissolution of activation products constitutes a successful paradigm for the small scale production 125 I, the concomitant production of 134 Cs and 137 Cs emerged as the primary impediment which necessitates purification of 125 I solution. This paper describes an ion-exchange chromatographic technique using Resorcinol Formaldehyde (RF) resin to purify 125 I solution from 134 Cs and 137 Cs impurities. A thorough investigation of the adsorption parameters of RF resin was carried out to arrive at the experimental conditions resulting optimum retention of 134 Cs and 137 Cs impurities. Based on the experimental findings, an optimized separation procedure was developed in which the neutron irradiated dissolved products at pH ∝ 13 was passed through a chromatography column containing RF resin where in 134 Cs and 137 Cs impurities gets adsorbed leaving behind 125 I to appear in the effluent. The overall recovery of 125 I was >90% with acceptable purity amenable for clinical applications.

  10. Molecular structures and thermodynamic properties of 12 gaseous cesium-containing species of nuclear safety interest: Cs 2, CsH, CsO, Cs 2O, CsX, and Cs 2X 2 (X = OH, Cl, Br, and I)

    Science.gov (United States)

    Badawi, Michael; Xerri, Bertrand; Canneaux, Sébastien; Cantrel, Laurent; Louis, Florent

    2012-01-01

    Ab initio electronic structure calculations at the coupled cluster level with a correction for the triples extrapolated to the complete basis set limit have been made for the estimation of the thermochemical properties of Cs 2, CsH, CsO, Cs 2O, CsX, and Cs 2X 2 (X = OH, Cl, Br, and I). The standard enthalpies of formation and standard molar entropies at 298 K, and the temperature dependence of the heat capacities at constant pressure were evaluated. The calculated thermochemical properties are in good agreement with their literature counterparts. For Cs 2, CsH, CsOH, Cs 2(OH) 2, CsCl, Cs 2Cl 2, CsBr, CsI, and Cs 2I 2, the calculated ΔfH298K∘ values are within chemical accuracy of the most recent experimental values. Based on the excellent agreement observed between our calculated ΔfH298K∘ values and their literature counterparts, the standard enthalpies of formation at 298 K are estimated to be the following: ΔfH298K∘ (CsO) = 17.0 kJ mol -1 and ΔfH298K∘ (Cs 2Br 2) = -575.4 kJ mol -1.

  11. The Godparent Plan: A Pedagogical Strategy for CS1 Accompaniment and CS2 Pedagogical Enhancement

    Directory of Open Access Journals (Sweden)

    Pedro Guillermo Feijóo-García

    2018-02-01

    Full Text Available Courses such as CS1 and CS2 can present an interesting pedagogical challenge when it comes to the theory-practice relationship, along with aspects that involve the course's logistics, the programming language used, and the characteristics of the students involved in the process. This study presents an innovative didactic approach, oriented towards the accompaniment of CS1 students by CS2 students at Universidad El Bosque, Colombia, seeking with this Godparent Plan, to provide a personalized accompaniment to first semester students, whereby CS2 students enhance their domain over concepts and skills while accompanying, explaining and teaching younger peers. The results of this study are favorable, outlining a didactic scheme that can be adapted and replicated in other curricular scenarios.

  12. Derivation of 137Cs deposition density from measurement of 137Cs inventories in undisturbed soils

    International Nuclear Information System (INIS)

    Hien, P.D.; Hiep, H.T.; Quang, N.H.; Huy, N.Q.; Binh, N.T.; Hai, P.S.; Long, N.Q.; Bac, V.T

    2012-01-01

    The 137 Cs inventories in undisturbed soils were measured for 292 locations across the territory of Vietnam. the logarithmic inventory values were regressed against characteristics of sampling sites, such as geographical coordinates, annual rainfall and physico-chemical parameters of soil. The regression model containing latitude and annual rainfall as determinants could explain 76% of the variations in logarithmic inventory values across the territory. The model part was interpreted as the logarithmic 137 Cs deposition density. At the 95% confidence level, 137 Cs deposition density could be predicted be the model ± 7% relative uncertainty. the latitude mean 137 Cs deposition density increases northward from 237 Bq m -2 to 1097 Bq m -2 , while the corresponding values derived from the UNSCEAR (1969) global pattern are 300 Bq m -2 and 600 Bq m -2 . High 137 Cs inputs were found in high-rainfall areas in northern and central parts of the territory. (author)

  13. Wpływ informatyzacji Biblioteki Uniwersyteckiej w Poznaniu na zmiany organizacyjne i rozwój usług bibliotecznych

    Directory of Open Access Journals (Sweden)

    Piotr Karwasiński

    2015-12-01

    Full Text Available W artykule omówiono zagadnienia związane z procesami informatyzacji Biblioteki Uniwersyteckiej w Poznaniu. W celu dokładnego scharakteryzowania przemian, prócz rysu historycznego, przedstawiono obszary, które wyraźnie poprawiły jakość pracy personelu i obsługę czytelników oraz przyczyniły się do poznania, upowszechniania i wdrażania nowoczesnych rozwiązań technologicznych. Zaprezentowano proces zmian w zakresie funkcjonowania systemu biblioteczno-informacyjnego Horizon i współpracy z narodowym katalogiem centralnym NUKAT. Opisano etapy rozwoju elektronicznej przestrzeni informacyjnej, w tym budowania elektronicznych zasobów wiedzy i tworzenia narzędzi do ich obsługi i wykorzystania w procesach wyszukiwania źródeł informacji. Zaprezentowano Bibliotekę Uniwersytecką jako partnera w aranżowaniu instytucjonalnych platform cyfrowych do deponowania i udostępniania dorobku intelektualnego społeczności naukowej Uniwersytetu im. Adama Mickiewicza w Poznaniu. Wskazano także funkcjonalność zaprojektowanych i wdrożonych innowacyjnych usług wirtualnych pakietu Libsmart, optymalizujących funkcjonowanie Biblioteki Uniwersyteckiej.

  14. Molecular Cytogenetic Characterization of two Triticum-Secale-Thinopyrum Trigeneric Hybrids Exhibiting Superior Resistance to Fusarium Head Blight, Leaf Rust, and Stem Rust Race Ug99.

    Science.gov (United States)

    Dai, Yi; Duan, Yamei; Liu, Huiping; Chi, Dawn; Cao, Wenguang; Xue, Allen; Gao, Yong; Fedak, George; Chen, Jianmin

    2017-01-01

    Fusarium head blight (FHB), leaf rust, and stem rust are the most destructive fungal diseases in current world wheat production. The diploid wheatgrass, Thinopyrum elongatum (Host) Dewey (2 n = 2 x = 14, EE) is an excellent source of disease resistance genes. Two new Triticum-Secale-Thinopyrum trigeneric hybrids were derived from a cross between a hexaploid triticale (X Triticosecale Wittmack, 2 n = 6 x = 42, AABBRR) and a hexaploid Triticum trititrigia (2 n = 6 x = 42, AABBEE), were produced and analyzed using genomic in situ hybridization and molecular markers. The results indicated that line RE21 contained 14 A-chromosomes, 14 B-chromosomes, three pairs of R-chromosomes (4R, 6R, and 7R), and four pairs of E-chromosomes (1E, 2E, 3E, and 5E) for a total chromosome number of 2 n = 42. Line RE62 contained 14 A-chromosomes, 14 B-chromosomes, six pairs of R-chromosomes, and one pair of translocation chromosomes between chromosome 5R and 5E, for a total chromosome number of 2 n = 42. At the seedling and adult growth stages under greenhouse conditions, line RE21 showed high levels of resistance to FHB, leaf rust, and stem rust race Ug99, and line RE62 was highly resistant to leaf rust and stem rust race Ug99. These two lines (RE21 and RE62) display superior disease resistance characteristics and have the potential to be utilized as valuable germplasm sources for future wheat improvement.

  15. 135Cs/137Cs isotopic composition of environmental samples across Europe: Environmental transport and source term emission applications

    International Nuclear Information System (INIS)

    Snow, Mathew S.; Snyder, Darin C.

    2016-01-01

    135 Cs/ 137 Cs isotopic analyses represent an important tool for studying the fate and transport of radiocesium in the environment; in this work the 135 Cs/ 137 Cs isotopic composition in environmental samples taken from across Europe is reported. Surface soil and vegetation samples from western Russia, Ukraine, Austria, and Hungary show consistent aged thermal fission product 135 Cs/ 137 Cs isotope ratios of 0.58 ± 0.01 (age corrected to 1/1/15), with the exception of one sample of soil-moss from Hungary which shows an elevated 135 Cs/ 137 Cs ratio of 1.78 ± 0.12. With the exception of the outlier sample from Hungary, surface soil/vegetation data are in quantitative agreement with values previously reported for soils within the Chernobyl exclusion zone, suggesting that radiocesium at these locations is primarily composed of homogenous airborne deposition from Chernobyl. Seawater samples taken from the Irish Sea show 135 Cs/ 137 Cs isotope ratios of 1.22 ± 0.11 (age corrected to 1/1/15), suggesting aged thermal fission product Cs discharged from Sellafield. The differences in 135 Cs/ 137 Cs isotope ratios between Sellafield, Chernobyl, and global nuclear weapons testing fallout indicate that 135 Cs/ 137 Cs isotope ratios can be utilized to discriminate between and track radiocesium transport from different nuclear production source terms, including major emission sources in Europe. - Highlights: • 135 Cs/ 137 Cs useful for tracking anthropogenic environmental radiocesium releases. • European surface soils/vegetation have uniform ratio consistent with Chernobyl. • 135 Cs/ 137 Cs in Irish sea represents thermal fission ratio distinct from Chernobyl. • Can distinguish between major source terms in Europe based on 135 Cs/ 137 Cs.

  16. Pluralismo jurídico: derecho indígena y justicia nacional

    Directory of Open Access Journals (Sweden)

    Leonello Bertini Chiriboga

    2013-06-01

    Full Text Available A partir de bases doctrinarias y normativas se analizan los avances y retrocesos de la jurisprudencia chilena en relación al reconocimiento de la costumbreindígena, la justiciabilidad del derecho propio indígena y la aplicación de un enfoque de pluralismo jurídico. Existen algunos avances en la jurisprudencia –a partir de la vigencia del Convenio 169 de la OIT– en el reconocimiento del derecho de propiedad ancestral al agua; derechos de uso, aprovechamiento y protección de tierras, recursos naturales y ecosistemas que conforman el hábitat territorial indígena; y derecho a la consulta acorde a la especificidad étnica de los pueblos indígenas. Sin embargo, en general, la jurisprudencia chilena salvaguarda la hegemonía del derecho estatal y los principios que lo estructuran, tanto en materia penal, donde excepcionalmente se aplica la costumbre como eximente o atenuante de responsabilidad penal, como en materia civil, donde se recogen tímidamente las normas y principios contenidos en la Ley Indígena y el Convenio 169 respecto del derecho de propiedad y posesión de las tierras de los pueblos indígenas. Por último, son inexistentes los casos de reconocimiento cierto de la potestad jurisdiccional de las autoridades indígenas para resolver los conflictos propios de su comunidad.

  17. CS EMISSION NEAR MIR-BUBBLES

    International Nuclear Information System (INIS)

    Watson, C.; Devine, Kathryn; Quintanar, N.; Candelaria, T.

    2016-01-01

    We survey 44 young stellar objects located near the edges of mid-IR-identified bubbles in CS (1–0) using the Green Bank Telescope. We detect emission in 18 sources, indicating young protostars that are good candidates for being triggered by the expansion of the bubble. We calculate CS column densities and abundances. Three sources show evidence of infall through non-Gaussian line-shapes. Two of these sources are associated with dark clouds and are promising candidates for further exploration of potential triggered star formation. We obtained on-the-fly maps in CS (1–0) of three sources, showing evidence of significant interactions between the sources and the surrounding environment

  18. Radiochemical determination of 137Cs in foods

    International Nuclear Information System (INIS)

    Kastner, Geraldo F.; Ferreira, Andrea Vidal; Monteiro, Roberto P.G.

    2013-01-01

    A determination of radionuclides in food samples is important in commodities in order to attend to regulatory requirements for international trade. As a long-lived radioisotope of cesium, 137 Cs is produced as a result of human nuclear activities and than its contamination level evaluation among others radionuclides in foods is necessary. A methodology for the determination of 137 Cs in foods, pork and fish, is described. The procedures covered homogenization and freeze-drying of the samples. The 137 Cs was measured by gamma spectrometry using Canberra 50% HPGe detector. The counting was carried out with Monte Carlo software for detection conditions optimization including geometry and chemical data information. A certified sample, SRM IAEA-375, was analyzed in order to evaluate the reliability of the method, and the results showed good agreement between the measured and certified values. (author)

  19. Retention of 137Cs in three humans

    International Nuclear Information System (INIS)

    Soegaard-Hansen, J.; Lauridsen, B.

    1992-01-01

    In two experiments the retention of 137 Cs after a single intake have been measured with whole-body counting. In the first experiment, two persons ingested a prepared liquid solution of 137 CsCl. In the second experiment these two persons together with a third person ingested 137 Cs naturally incorporated in a piece of meat. The obtained data have been fitted to a retention function with a small compartment having a fast excretion rate and a large compartment having a slow excretion rate, as given by the International Commission on Radiological Protection (ICRP). The effective biological half-lives were in both experiments significantly different from the value given by ICRP. (au)

  20. 137Cs in Norwegian Lapps, spring 1980

    International Nuclear Information System (INIS)

    Westerlund, E.A.; Gjertsen, L.; Lind, B.

    1980-01-01

    Measurements show that the body burden of 137 in Lapps in Norway fell from 1965 to 1975 with an apparent half-life of 4-5 years. Since then the reduction has been considerably slower due to fallout from Chinese nuclear weapon tests. The content of 137 Cs in reindeer meat follows the same pattern. Seasonal variations occur due to the migration of the reindeer between winter grazing on lichen with a high 137 Cs content and summer grazing on grass with a lower 137 Cs content. For annual dose calculations it is found that whole body mearurements at the end of March or the beginning of April give good values. Radiation doses to Lapps working small holdings are about 3/4 of those of nomadic reindeer-herding Lapps. (JIW)

  1. CS EMISSION NEAR MIR-BUBBLES

    Energy Technology Data Exchange (ETDEWEB)

    Watson, C. [Manchester University, Department of Physics, 604 E. College Ave., North Manchester, IN 46962 (United States); Devine, Kathryn [College of Idaho, Department of Physics, 2112 Cleveland Blvd, Caldwell, ID 83605 (United States); Quintanar, N. [Texas A and M University, Department of Nuclear Engineering, 401 Joe Routt Blvd, College Station, TX 77843 (United States); Candelaria, T., E-mail: cwatson@manchester.edu, E-mail: KDevine@collegeofidaho.edu, E-mail: nrquintanar@tamu.edu, E-mail: tcandela@nmt.edu [New Mexico Institute of Mining and Technology, Department of Physics, 801 Leroy Place, Socorro, NM 87801 (United States)

    2016-02-10

    We survey 44 young stellar objects located near the edges of mid-IR-identified bubbles in CS (1–0) using the Green Bank Telescope. We detect emission in 18 sources, indicating young protostars that are good candidates for being triggered by the expansion of the bubble. We calculate CS column densities and abundances. Three sources show evidence of infall through non-Gaussian line-shapes. Two of these sources are associated with dark clouds and are promising candidates for further exploration of potential triggered star formation. We obtained on-the-fly maps in CS (1–0) of three sources, showing evidence of significant interactions between the sources and the surrounding environment.

  2. Cs-137 for irradiation of sewage sludge

    International Nuclear Information System (INIS)

    Lessel, T.

    1986-01-01

    Since 1973, the Geiselbullach sewage treatment works have been continuously operating their first system for gamma irradiation of sewage sludge. Within the framework of a German-American agreement, nine Cs-137 sources with a total activity of 56.000 Ci have been made available to the works free of charge in 1983, in order to test in practice and to demonstrate the applicability of these radiation sources in comparison to the Co-60 sources exclusively used up to then. This first study on the applicability of Cs-137 as a radiation source for sewage sludge treatment revealed no findings or effects speaking against Cs-137 as a radiation source for this purpose. (orig./RB) [de

  3. WESF (173)Cs gamma ray sources

    Science.gov (United States)

    Kenna, B. T.

    1984-10-01

    The Waste Encapsulation and Storage Facility (WESP) at Hanford, Washington has been separating cesium from stored liquid defense waste since 1945. This is done to alleviate the heat generated by the decay of radioactive Cs137. The cesium is converted to CsCl, doubly encapsulated in 316l stainless steel, and placed in storage. The potential utility of these Cs137 capsules as gamma radiation sources was demonstrated. Registration of the capsule with the NRC as a sealed gamma source would facilitate the licensing of non-DOE irradiation facilities using this source. To grant this registration, the NRC requires characteristics of the capsule. It must also be demonstrated that the capsule will maintain its integrity under both normal circumstances and specified abnormal conditions. The required information is provided through collation of results of studies and tests done previously by other laboratories.

  4. Indígenas Antropólogos e o Espetáculo da Alteridade

    Directory of Open Access Journals (Sweden)

    Felipe Sotto Maior Cruz

    2017-08-01

    Full Text Available No presente artigo, apresento uma reflexão sobre a entrada de estudantes indígenas nas universidades brasileiras, enfatizando, a partir de minha experiência enquanto indígena antropólogo, o contexto dessa inserção em pós-graduações de antropologia. O meu foco de análise é a problemática que envolve a histórica invisibilidade indígena e os desafios de afirmação do protagonismo indígena nas academias frente às políticas de enunciação consolidadas nas práticas universitárias e à imagética nacional em torno da figura do “índio”.  Palavras-Chave: indígenas antropólogos, indígenas na universidade, educação indígena, indigenismo, relações interétnicas. Indigenous Anthropologists and the Spectacle of Otherness Abstract In this article I ponder on the access of indigenous students to Brazilian universities. From my own experience as an indigenous anthropologist, I focus on the context in which indigenous students are admitted to graduate programs in anthropology. I analyze the Indians' historical invisibility and the challenges they face to consolidate their roles in academy vis-à-vis the politics of enunciation that are deeply rooted in university practices and in the national imagery about the "Indian." Key Words: Indigenous anthropologists, University Indians, indigenous education, indigenism, interethnic relations. Indígenas Antropólogos y el Espectáculo de la Alteridad Resumen En el presente artículo presento una reflexión sobre la entrada de estudiantes indígenas en las universidades brasileñas, enfatizando, a partir de mi experiencia como indígena antropólogo, el contexto de esa inserción en los posgrados de antropología. Mi foco de análisis es la problemática que envuelve la histórica invisibilidad indígena y los desafíos de afirmación del protagonismo indígena en la academia frente a las políticas de enunciación consolidadas en las prácticas universitarias y la imagen nacional en

  5. Phonon dispersion curves for CsCN

    International Nuclear Information System (INIS)

    Gaur, N.K.; Singh, Preeti; Rini, E.G.; Galgale, Jyostna; Singh, R.K.

    2004-01-01

    The motivation for the present work was gained from the recent publication on phonon dispersion curves (PDCs) of CsCN from the neutron scattering technique. We have applied the extended three-body force shell model (ETSM) by incorporating the effect of coupling between the translation modes and the orientation of cyanide molecules for the description of phonon dispersion curves of CsCN between the temperatures 195 and 295 K. Our results on PDCs in symmetric direction are in good agreement with the experimental data measured with inelastic neutron scattering technique. (author)

  6. Mastering Adobe Premiere Pro CS6

    CERN Document Server

    Ekert, Paul

    2013-01-01

    Designed to be practical and engaging, Mastering Adobe Premiere Pro CS6 is a project-based book to help you truly augment your skills and become a film editing hotshot.If you're just starting out or even migrating from existing video editing software, then this book is for you. With rapid progression through practical examples constructed to be both engaging and useful, Mastering Adobe Premiere Pro CS6 is ideal for learning the sometimes complex workflows of this powerful application.

  7. Study of the 137Cs Stabilizer Source

    Directory of Open Access Journals (Sweden)

    GAO Yan;WANG Yan-ling;XU Zhi-jian;XU Liang;REN Chun-xia;TAN Xiao-ming;CUI Hong-qi

    2014-02-01

    Full Text Available The attenuation laws of the Cesium -137 γ-ray penetrating the ceramic core、stainless steel and tungsten steel were studied. The radioactivity of the 137Cs stabilizer source was determined through the surface dose rate of 137Cs stabilizer sources. In addition, the adsorption properties of the ceramic core were studied to improve the stability of the output rate, and established a production line. The application results showed that the output rate of ray source was accurate and was of a good consistency. At present, the source had been used in logging lithology, and achieved the realization of domestic product.

  8. The Photoshop CS4 Companion for Photographers

    CERN Document Server

    Story, Derrick

    2009-01-01

    "Derrick shows that Photoshop can be friendly as well as powerful. In part, he does that by focusing photographers on the essential steps of an efficient workflow. With this guide in hand, you'll quickly learn how to leverage Photoshop CS4's features to organize and improve your pictures."-- John Nack, Principal Product Manager, Adobe Photoshop & BridgeMany photographers -- even the pros -- feel overwhelmed by all the editing options Photoshop provides. The Photoshop CS4 Companion for Photographers pares it down to only the tools you'll need most often, and shows you how to use those tools as

  9. CS model coil experimental log book

    International Nuclear Information System (INIS)

    Nishijima, Gen; Sugimoto, Makoto; Nunoya, Yoshihiko; Wakabayashi, Hiroshi; Tsuji, Hiroshi

    2001-02-01

    Charging test of the ITER CS Model Coil which is the world's largest superconducting pulse coil and the CS Insert Coil had started at April 11, 2000 and had completed at August 18, 2000. In the campaign, total shot numbers were 356 and the size of the data file in the DAS (Data Acquisition System) was over 20 GB. This report is a database that consists of the log list and the log sheets of every shot. One can access the database, make a search, and browse results via Internet (http://1ogwww.naka.jaeri.go.jp). The database will be useful to quick search to choose necessary shots. (author)

  10. Haciendo desarrollo a lo indígena Proyectos de desarrollo en comunidades indígenas del Chaco salteño, Argentina

    Directory of Open Access Journals (Sweden)

    Natalia Castelnuovo Biraben

    2014-01-01

    Full Text Available A partir de una perspectiva etnográfica del proceso de implementación de un programa de desarrollo en comunidades indígenas, en el presente artículo nos proponemos dejar al descubierto los conflictos emergentes entre la Carta de cooperación firmada por el Estado argentino y el Banco Interamericano de Desarrollo, en cuanto es, por un lado, expresión de una episteme de la dominación y, por el otro, de una microfísica de la resistencia cotidiana desplegada por el Consejo de Caciques de los Siete Pueblos. El poder de negociación de la organización indígena la constituyó en broker de desarrollo, al implementar los distintos proyectos “a lo indígena”. El análisis de este proceso nos permite reflexionar acerca de las relaciones que pautan a las organizaciones indígenas con el Estado argentino y con los organismos de financiamiento internacional.

  11. Properties of CsI and CsI-TMAE photocathodes

    International Nuclear Information System (INIS)

    Anderson, D.F.; Kwan, S.; Peskov, V.; Hoeneisen, B.

    1992-06-01

    The importance of heating the CsI or CsI-TMAE photocathodes during preparation, as well as the importance of the gas environment on the quantum efficiency is presented. The dependence of the aging characteristics of these photocathodes on the operating temperature, on the presence of gas, and on the charge amplification of the chamber is also discussed. For CsI photocathodes charges in excess of 2x10 14 e - /mm 2 can be collected with little degradation of performance. A timing resolution of 0.55 ns is also achieved for single photoelectrons suggesting a possible time-of-flight detector

  12. Effect of 137Cs on immunological reactivity

    International Nuclear Information System (INIS)

    Shubik, V.M.

    1975-01-01

    An important role of 137 Cs as a new ecological factor was shown by analyzing 31 different studies. The radioisotope may at present be detected in the organisms of all inhabitants of this planet. The migration of 137 Cs along the chain lichen-deer-man leads to its accumulation in the organism of humans living in the Extreme North and taking venison in their food. Although the high sensitivity of immunological reactions to various unfavourable environmental factors is well known, data on the effect of incorporated 137 Cs on immunity are scanty. Experiments on animals showed changes in factors of nonspecific immunity (phagocytic reaction of blood neutrophils, bactericidal activity, lysozyme and complement titres of blood serum) and specific immunity (formation of antiviral antibodies). The blood of animals injured by the isotope displays complete and incomplete autoantibodies. The dependence of immunobiological changes on the dose absorbed by the organism is shown. The 137 Cs intake of inhabitants of the Extreme North who eat venison did not, with the absorbed dose equalling up to 50 Mrem per year, lead to changes in their immunological reactivity. (author)

  13. Flash CS4: The Missing Manual

    CERN Document Server

    Grover, Chris

    2008-01-01

    Unlock the power of Flash and bring gorgeous animations to life onscreen. Flash CS4: The Missing Manual includes a complete primer on animation, a guided tour of the program's tools and capabilities, lots of new illustrations, and more details on working with video. Beginners will learn to use the software in no time, and experienced Flash designers will improve their skills.

  14. A novel Robertsonian translocation event leads to transfer of a stem rust resistance gene (Sr52) effective against race Ug99 from Dasypyrum villosum into bread wheat.

    Science.gov (United States)

    Qi, L L; Pumphrey, M O; Friebe, Bernd; Zhang, P; Qian, C; Bowden, R L; Rouse, M N; Jin, Y; Gill, B S

    2011-06-01

    Stem rust (Puccinia graminis f. sp. tritici Eriks. & E. Henn.) (the causal agent of wheat stem rust) race Ug99 (also designated TTKSK) and its derivatives have defeated several important stem rust resistance genes widely used in wheat (Triticum aestivum L.) production, rendering much of the worldwide wheat acreage susceptible. In order to identify new resistance sources, a large collection of wheat relatives and genetic stocks maintained at the Wheat Genetic and Genomic Resources Center was screened. The results revealed that most accessions of the diploid relative Dasypyrum villosum (L.) Candargy were highly resistant. The screening of a set of wheat-D. villosum chromosome addition lines revealed that the wheat-D. villosum disomic addition line DA6V#3 was moderately resistant to race Ug99. The objective of the present study was to produce and characterize compensating wheat-D. villosum whole arm Robertsonian translocations (RobTs) involving chromosomes 6D of wheat and 6V#3 of D. villosum through the mechanism of centric breakage-fusion. Seven 6V#3-specific EST-STS markers were developed for screening F(2) progeny derived from plants double-monosomic for chromosomes 6D and 6V#3. Surprisingly, although 6D was the target chromosome, all recovered RobTs involved chromosome 6A implying a novel mechanism for the origin of RobTs. Homozygous translocations (T6AS·6V#3L and T6AL·6V#3S) with good plant vigor and full fertility were selected from F(3) families. A stem rust resistance gene was mapped to the long arm 6V#3L in T6AS·6V#3L and was designated as Sr52. Sr52 is temperature-sensitive and is most effective at 16°C, partially effective at 24°C, and ineffective at 28°C. The T6AS·6V#3L stock is a new source of resistance to Ug99, is cytogenetically stable, and may be useful in wheat improvement.

  15. Proyecto Vidas Paralelas Indígena: revelando el pueblo Fulni-ô de Pernambuco, Brasil

    Directory of Open Access Journals (Sweden)

    Eva Aurélia Melo SANTOS

    2012-03-01

    Full Text Available Este relato de experiencia se refiere al grupo étnico Fulni-ô, que habita la comunidad de Xixia-clá en el municipio de Águas Belas, a 300 km de Recife, Estado de Pernambuco, Brasil. Con respecto a su historia, se relata la unión con la tribu Carijós, y el declinio en el uso de la lengua ancestral, el Yaathê, del Saúde Indígena Tempus - Actas de Saúde Coletiva Revista Tempus Actas de Saúde Coletiva 58 tronco linguístico Macro-Jê. Se hace hincapié en el conflito de tierras, pues fue realizada una división en lotes que dejó a los indígenas un espacio muy limitado, siendo la ciudad fundada en territorio indígena. Se describe el liderazgo del Cacique y del Pajé, y la discusión en comunidad de los asuntos que interesan a los indígenas. A pesar de que todos ellos declaran profesar la religión católica, conocimientos ancestrales son trasmitidos y la ceremonia del Ouricury es muy concurrida. Se describe la atención a la salud, que cuenta con un puesto de salud, en donde trabajan indígenas en cargos compatibles con la educación en los niveles fundamental y medio. Los cargos de nivel superior son ocupados por no indígenas. El saneamiento básico aún está en proceso de implantación. La atención básica depende del Programa de Salud de la Familia Indígena (PSFI.

  16. SR-XRF imaging of Cs highly accumulated in vegetables

    International Nuclear Information System (INIS)

    Nakai, Izumi; Oda, Nahoko; Terada, Yasuko

    2011-01-01

    Accumulation of Cs in vegetables was studied with regard to the remediation of radioactive Cs from a nuclear plant accident in Fukushima. It was found that Brassica oleracea var. capitata, Brassica campestris var. perviridis, and Lactuca sativa accumulated Cs to a level of more than 10000 ppm (dry weight) when they were cultivated in 1 mM Cs solution. Two-dimensional distributions of Cs were revealed by SR-XRF imaging showing a homogeneous distribution of Cs in the plant bodies. (author)

  17. Repair of U/G and U/A in DNA by UNG2-associated repair complexes takes place predominantly by short-patch repair both in proliferating and growth-arrested cells

    DEFF Research Database (Denmark)

    Akbari, Mansour; Otterlei, Marit; Pena Diaz, Javier

    2004-01-01

    Nuclear uracil-DNA glycosylase UNG2 has an established role in repair of U/A pairs resulting from misincorporation of dUMP during replication. In antigen-stimulated B-lymphocytes UNG2 removes uracil from U/G mispairs as part of somatic hypermutation and class switch recombination processes. Using......, PCNA and DNA ligase, the latter detected as activity. Short-patch repair was the predominant mechanism both in extracts and UNG2-ARC from proliferating and less BER-proficient growth-arrested cells. Repair of U/G mispairs and U/A pairs was completely inhibited by neutralizing UNG...

  18. Radiation damage in undoped CsI and CsI(Tl)

    International Nuclear Information System (INIS)

    Woody, C.L.; Kierstead, J.A.; Levy, P.W.; Stoll, S.

    1992-01-01

    Radiation damage has been studied in undoped CsI and CsI(TI) crystals using 60 Co gamma radiation for doses up to ∼ 4.2 x 10 6 . Samples from various manufacturers were measured ranging in size from 2.54 cm long cylinders to a 30 cm long block. Measurements were made on the change in optical transmission and scintillation light output as a function of dose. Although some samples showed a small change in transmission, a significant change in light output was observed for all samples. Recovery from damage was also studied as a function of time and exposure to UV light. A short lived phosphorescence was observed in undoped CsI, similar to the phosphorescence seen in CsI(TI)

  19. Ab Initio investigation of cesium monoxide of CsO and CsO+

    International Nuclear Information System (INIS)

    Zialenina, M.; Kelloe, V.; Cernusak, I.

    2015-01-01

    Cesium is material with a low work function and, accordingly, atomic Cs has a low value of ionization energy. Therefore cesium is regarded as a good source material for electrons in plasma heating module. One of plasma heating technologies using Cs grid is foreseen as a candidate for the tokamak within the framework of project ITER. Among the possible impurities that can coexist in this module are CsO or CsO + , due to presence of oxygen traces in the heating chamber. We conducted CCSD(T) energy calculations of the cesium oxide (X 2 Σ + ) and its cation (X 3 Σ - ). Here are presented the bond lengths and spectroscopic parameters of both species and ionization energy (IE). Our IE (6.88 eV) is in good agreement with previous theoretical results, experiment indicates substantially lower value (6.22 eV). (authors)

  20. Calculation of inelastic cross sections for H+ + Cs → H(n=2) + Cs+

    International Nuclear Information System (INIS)

    Valance, A.; Spiess, G.

    1975-01-01

    The cross sections for the processes H + +Cs → H(2p and 2s) +Cs + were calculated in the center of mass energy range 250--2400 eV using a simple pseudopotential formalism for the potential curves and coupling matrix elements and a perturbed stationary state (pss) formulation for the calculation of the cross sections. The results are found to be in reasonable agreement with experiment. (auth)

  1. Zasady ujawniania aktywów biologicznychw sprawozdaniach finansowych jednostek rolniczychwedług Międzynarodowych StandardówSprawozdawczości Finansowej

    Directory of Open Access Journals (Sweden)

    Teresa Kiziukiewicz

    2009-03-01

    Full Text Available Charakterystycznym dla przedsiębiorstw rolniczych składnikiem aktywów są aktywa biologiczne. Wyróżnia je fakt podlegania przemianie biologicznej, wskutek której przekształcają się one w produkty rolnicze lub inne aktywa biologiczne. W związku z tą specyfiką powstaje problem odpowiedniej prezentacji informacji o nich. W artykule są przedstawione zasady i zakres ujawnień o aktywach biologicznych w sprawozdaniu finansowym i dołączanych do niego raportach szczegółowych, ze szczególnym uwzględnieniem problemów wyceny według wartości godziwej.

  2. The 134Cs uptake by sunflower (Helianthus anuus, Less) cultivated on soil contaminated with 134Cs

    International Nuclear Information System (INIS)

    Poppy Intan Tjahaja; Putu Sukmabuana

    2008-01-01

    One of the methods for remediation of contaminated environment is phytoremediation techniques, i.e. the environmental remediation using plants. In this research the bioavailability of sunflower plant (Helianthus anuus, Less) in radiocaesium uptake from soil was studied for being considered as a phytoremediator later. Sunflower plants were cultivated on soil contaminated with 134 Cs with the concentrations of 29,3 kBq/kg ; 117,2 kBq/kg ; 557 kBq/kg for 45 days. As control the sunflowers were also cultivated on non contaminated soil. Observation was carried out every 5 days by sampling 3 plants and soils. The plant and soil samples were dried using infra red lamp for 24 hours, and then counted using gamma spectrometer. The counting results i.e. 134 Cs concentration on soil and plant parts were then analyzed to obtain transfer factor (TF) values. The highest TF values was reached on 26 th day, i.e. 0,87; 1,89 ; 2,82 for initial soil 134 Cs concentrations of 29,3 Bq/g ; 117,2 Bq/g ; 557 Bq/g, respectively. The TF values obtained expressed the capability of plants to accumulate 134 Cs from soils. The observation to the plants growth showed that the plants grew normally on the 134 Cs contaminated soil until the concentration of 557 Bq/g. The sunflower can be considered to be phytoremediator of andosol soil contaminated with Cs radionuclides. (author)

  3. Identification and mapping of Sr46 from Aegilops tauschii accession CIae 25 conferring resistance to race TTKSK (Ug99) of wheat stem rust pathogen.

    Science.gov (United States)

    Yu, Guotai; Zhang, Qijun; Friesen, Timothy L; Rouse, Matthew N; Jin, Yue; Zhong, Shaobin; Rasmussen, Jack B; Lagudah, Evans S; Xu, Steven S

    2015-03-01

    Mapping studies confirm that resistance to Ug99 race of stem rust pathogen in Aegilops tauschii accession Clae 25 is conditioned by Sr46 and markers linked to the gene were developed for marker-assisted selection. The race TTKSK (Ug99) of Puccinia graminis f. sp. tritici, the causal pathogen for wheat stem rust, is considered as a major threat to global wheat production. To address this threat, researchers across the world have been devoted to identifying TTKSK-resistant genes. Here, we report the identification and mapping of a stem rust resistance gene in Aegilops tauschii accession CIae 25 that confers resistance to TTKSK and the development of molecular markers for the gene. An F2 population of 710 plants from an Ae. tauschii cross CIae 25 × AL8/78 were first evaluated against race TPMKC. A set of 14 resistant and 116 susceptible F2:3 families from the F2 plants were then evaluated for their reactions to TTKSK. Based on the tests, 179 homozygous susceptible F2 plants were selected as the mapping population to identify the simple sequence repeat (SSR) and sequence tagged site (STS) markers linked to the gene by bulk segregant analysis. A dominant stem rust resistance gene was identified and mapped with 16 SSR and five new STS markers to the deletion bin 2DS5-0.47-1.00 of chromosome arm 2DS in which Sr46 was located. Molecular marker and stem rust tests on CIae 25 and two Ae. tauschii accessions carrying Sr46 confirmed that the gene in CIae 25 is Sr46. This study also demonstrated that Sr46 is temperature-sensitive being less effective at low temperatures. The marker validation indicated that two closely linked markers Xgwm210 and Xwmc111 can be used for marker-assisted selection of Sr46 in wheat breeding programs.

  4. Molecular Cytogenetic Characterization of two Triticum–Secale–Thinopyrum Trigeneric Hybrids Exhibiting Superior Resistance to Fusarium Head Blight, Leaf Rust, and Stem Rust Race Ug99

    Directory of Open Access Journals (Sweden)

    Yi Dai

    2017-05-01

    Full Text Available Fusarium head blight (FHB, leaf rust, and stem rust are the most destructive fungal diseases in current world wheat production. The diploid wheatgrass, Thinopyrum elongatum (Host Dewey (2n = 2x = 14, EE is an excellent source of disease resistance genes. Two new Triticum–Secale–Thinopyrum trigeneric hybrids were derived from a cross between a hexaploid triticale (X Triticosecale Wittmack, 2n = 6x = 42, AABBRR and a hexaploid Triticum trititrigia (2n = 6x = 42, AABBEE, were produced and analyzed using genomic in situ hybridization and molecular markers. The results indicated that line RE21 contained 14 A-chromosomes, 14 B-chromosomes, three pairs of R-chromosomes (4R, 6R, and 7R, and four pairs of E-chromosomes (1E, 2E, 3E, and 5E for a total chromosome number of 2n = 42. Line RE62 contained 14 A-chromosomes, 14 B-chromosomes, six pairs of R-chromosomes, and one pair of translocation chromosomes between chromosome 5R and 5E, for a total chromosome number of 2n = 42. At the seedling and adult growth stages under greenhouse conditions, line RE21 showed high levels of resistance to FHB, leaf rust, and stem rust race Ug99, and line RE62 was highly resistant to leaf rust and stem rust race Ug99. These two lines (RE21 and RE62 display superior disease resistance characteristics and have the potential to be utilized as valuable germplasm sources for future wheat improvement.

  5. Saúde reprodutiva e mulheres indígenas do Alto Rio Negro

    Directory of Open Access Journals (Sweden)

    Marta Azevedo

    Full Text Available O presente artigo descreve e analisa as concepções próprias das mulheres indígenas do Alto Rio Negro sobre saúde reprodutiva, relacionando-as a indicadores de fecundidade. As informações qualitativas apontam para um conhecimento detalhado e complexo que as mulheres indígenas dessa região possuem sobre seu corpo e os cuidados com sua saúde. Os níveis e padrões etários da fecundidade estão relacionados com a etnia das mulheres, portanto, aos sistemas tradicionais de cuidados com a saúde desses povos. A pesquisa foi desenvolvida entre 1997 e 2003, na região de Iauaretê, Terra Indígena Alto Rio Negro (AM, e teve como primeira fonte de dados o Censo Indígena Autônomo do Rio Negro - CIARN-, levado a efeito pela Federação das Organizações Indígenas do Rio Negro - FOIRN - em 1992.

  6. Biological effects of 137Cs, incorporated into organism of rats

    International Nuclear Information System (INIS)

    Monakhov, A.S.; Strekalov, S.A.; Sokolov, A.V.; Aver'yanova, T.K.

    1987-01-01

    Results of investigating mutagenous and hemotoxic effects of 137 Cs on blood lymphocytes of rats are presented. 137 Cs was orally administrated into organism of rats as 270 kBq/g chloride solution. 137 Cs mutagenous effect was studied on metaphase plates of rat blood lymphocytes in course of rats lifetime experiment. It is stated that 137 Cs inducing severe disturbances of genetic material in a great quantity of blood lymphocytes, causes their total killing

  7. Synthesis, thermal decomposition and sensitivity study of CsDNBF

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Shaozong; Zhang, Tonglai; Yang, Li; Zhang, Jianguo; Sun, Yuanhua [State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081 (China)

    2007-02-15

    CsDNBF (cesium 7-hydroxy-4,6-dinitro-5,7-dihydrobenzofuroxanide) was synthesized from the sodium salt of DNBF and cesium nitrate. The thermal decomposition process has been investigated and the results show that the solid residues at 240 C are RCOOCs, CsNCO, RNO{sub 2} and CsNO{sub 3}. The sensitivity results demonstrate that CsDNBF has better properties than KDNBF, which has been widely used. (Abstract Copyright [2007], Wiley Periodicals, Inc.)

  8. CS model coil experimental log book

    Energy Technology Data Exchange (ETDEWEB)

    Nishijima, Gen; Sugimoto, Makoto; Nunoya, Yoshihiko; Wakabayashi, Hiroshi; Tsuji, Hiroshi [Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment

    2001-02-01

    Charging test of the ITER CS Model Coil which is the world's largest superconducting pulse coil and the CS Insert Coil had started at April 11, 2000 and had completed at August 18, 2000. In the campaign, total shot numbers were 356 and the size of the data file in the DAS (Data Acquisition System) was over 20 GB. This report is a database that consists of the log list and the log sheets of every shot. One can access the database, make a search, and browse results via Internet (http://1ogwww.naka.jaeri.go.jp). The database will be useful to quick search to choose necessary shots. (author)

  9. Magnetic correlations in CsVBr3

    International Nuclear Information System (INIS)

    Itoh, Shinichi; Kakurai, Kazuhisa; Endoh, Yasuo

    2001-01-01

    The static magnetic correlation function, S(q), in and S=3/2, one-dimensional Heisenberg antiferromagnet, CsVBr 3 , was measured at temperatures between 40 K and 200 K above the three-dimensional ordering temperature (T N =20.3 K), on a chopper spectrometer install at a pulsed neutron source. The observed S(q) was well fitted to a Lorentzian function convoluted with the instrumental resolution function. The inverse correlation length, κ(T), determined as a half width of the correlation function, showed a linear temperature dependence in the observed temperature range, and, qualitatively well agreed with classical theory. This is consistent with current theory, also, with κ(T) reported for a similar system, CsVCl 3 . (author)

  10. 137Cs behaviour in fruit trees

    International Nuclear Information System (INIS)

    Monte, L.; Quaggia, S.; Pompei, F.; Fratarcangeli, S.

    1989-01-01

    The results of measurements carried out during the period 1987-1988, to evaluate the levels of 137 Cs and 134 Cs contamination in fruit samples and in various components of fruit-trees have been reported. It has been demonstrated that, in the case of an accidental contamination of the air, the contamination of fruit is mainly due to the foliar translocation of radionuclide. Data of radioactivity content in fruits collected through a period of three years show that the radioactivity content in fruit diminishes exponentially. Rough estimates of ''translocation coefficient'' defined as the ratio (radionuclide concentration in fruit)/(radionuclide deposition on soil), and of the ''biological half time'' have been carried out in the case of hazel-nut, walnut, apple, chestnut and olive

  11. Teaching the Five Cs with Cinema

    Directory of Open Access Journals (Sweden)

    Rimma Garn

    2012-08-01

    Full Text Available This paper discusses teaching the five Cs (as noted in the following introduction, delineated in the “National Standards for Foreign Language Learning in the 21st Century,” through a college content course based on cinema. It provides an overview of a 2009 Berkeley workshop, “Teaching Language and Culture with Film,” that addressed larger issues related to such courses within the curriculum, their design and teaching. The paper goes on to describe three Russian courses based on the same textbook, KinoTalk, yet designed for different student audiences: for traditional third year students and for various kinds of non-traditional students, for heritage speakers, and for former missionaries with two-years experience in the target country but minimal formal training in the language. In conclusion, the paper suggests ideas for further courses taught using the same textbook and for teaching the five Cs through language and cinema in general.

  12. On Gács' quantum algorithmic entropy

    Directory of Open Access Journals (Sweden)

    Toru Takisaka

    2014-12-01

    Full Text Available We define an infinite dimensional modification of lower-semicomputability of density operators by Gács with an attempt to fix some problem in the paper. Our attempt is partly achieved by showing the existence of universal operator under some additional assumption. It is left as a future task to eliminate this assumption. We also see some properties and examples which stimulate further research. In particular, we show that universal operator has certain nontrivial form if it exists.

  13. Flash CS3 The Missing Manual

    CERN Document Server

    Grover, Chris

    2008-01-01

    Flash CS3, the latest version of the premier tool for creating web animations and interactive web sites, can be intimidating to learn. This entertaining reference tutorial provides a reader-friendly animation primer and a guided tour of all the program's tools and capabilities. Beginners will learn to use the software in no time, and experienced users will quickly take their skills to the next level.

  14. 137Cs in Research Polygon 'Sumbar'

    International Nuclear Information System (INIS)

    Skoko, B.; Marovic, G.; Babic, D.; Vickovic, I.

    2011-01-01

    In 2009, Radiation Protection Unit of the Institute for Medical Reseach and Occupational Health started a radioactivity measurement programme in research polygon ''Sumbar''. The purpose of these investigations is to collect as many data as possible about the contamination of the polygon that is mainly covered by a forest of English oak (Quercus robur) and hornbeam (Carpinus betulus). Once contaminated, forests represent long-term sources of radiation exposure to specific population groups which are using them as a source of foodstuffs. After the Chernobyl accident, researchers have shown that there has been more variability in radionuclide activity concentration in forests than in agricultural ecosystems. In order to carry out a radioactivity screening of the polygon, we randomly chosed three sampling sites for collecting soil, grass and moss samples. Different species of mushrooms were collected over the whole polygon area. The average activity concentration of 137Cs in soil for two sampling sites is (123 @ 9) Bq kg -1 , while the result for the third site is lower by an order of magnitude ((16.1@0.5) Bq kg -1 ). The activity concentration of 137Cs in grass samples ranges from (0.43 @ 0.03) Bq kg -1 to (13.2 @ 0.1) Bq kg -1 , and in moss samples from (8.7 @ 0.2) Bq kg -1 to (57.8 @ 0.3) Bq kg - 1. In five collected mushroom species, the activity of 137Cs is in the range between (4.1 @ 0.5) Bq kg -1 and (610 @ 5) Bq kg -1 , the lowest and the highest values referreing to Clitocybe nebularis and Gymnopus dryophilus, respectively. Parasitic mushrooms exhibit activity below the minimum detection level. Our preliminary results show and confirm variability of the activity concentration of 137Cs in different parts of this ecosystem. (author)

  15. Estratégias para Criação da Indústria Aeroespacial Brasileira

    OpenAIRE

    dos Santos, Isabel Cristina; Neto, João Amato

    2007-01-01

    A criação da indústria aeroespacial brasileira - defesa, aeronáutica e espaço - situa-se no processo de formação da indústria nacional, quando, na década de 1930, o modelo econômico fundamentado na produção agrícola é substituído, lenta e gradualmente pela produção industrial. Para prover recursos humanos, técnicos e tecnológicos necessários para atender as necessidades do modelo industrial que se formaria a partir de então, foram criadas algumas das principais indústrias e serviços de infra-...

  16. A presença feminina nas indústrias de lingerie na cidade de Franca

    OpenAIRE

    Pereira, Mayara C. Freitas; Bueno, Cléria M. L. Bittar Pucci

    2008-01-01

    Dados recentes nos comprovam que as indústrias de lingerie têm apresentado considerável crescimento na cidade de Franca/SP, cuja história sempre se pautou pela indústria do calçado. Devido à crise no setor calçadista, sobretudo em razão da intensificação da concorrência com a indústria dos países asiáticos, muitas grandes fábricas de calçados foram fechadas e, com a dispensa de mão-de-obra, houve um processo de reorganização da estrutura fabril, protagonizado, em especial, por aqueles que bus...

  17. A formação do professor indígena

    Directory of Open Access Journals (Sweden)

    Vanessa Nunes Ramos

    2014-03-01

    Full Text Available O artigo aborda a temática Formação do Professor Indígena e teve como objetivo destacar os desafios e avanços no processo de formação docente no Estado de Mato Grosso. A pesquisa teve uma análise qualitativa, baseada na pesquisa bibliográfica. Concluiu-se que o professor indígena tem como função principal contribuir para a formação integral de sua comunidade, atuando para além da sala de aula, ele contribui com o desenvolvimento econômico, político, social e cultural da comunidade. Palavras-chave: educação; formação do professor indígena; cultura.

  18. Fractionation of 137Cs and Pu in natural peatland

    International Nuclear Information System (INIS)

    Mihalík, Ján; Bartusková, Miluše; Hölgye, Zoltán; Ježková, Tereza; Henych, Ondřej

    2014-01-01

    High Cs-137 concentrations in plants growing on peatland inspired us to investigate the quantity of its bioavailable fraction in natural peat. Our investigation aims to: a) estimate the quantity of bioavailable Cs-137 and Pu present in peat, b) verify the similarity of Cs-137 and K-40 behaviours, and c) perform a quantification of Cs-137 and Pu transfer from peat to plants. We analysed the vertical distribution of Cs-137 and Pu isotopes in the peat and their concentrations in plants growing on these places. Bioavailability of radionuclides was investigated by sequential extraction. Sequential analyses revealed that it was the upper layer which contained the majority of Cs-137 in an available form while deeper layers retained Cs-137 in immobile fractions. We can conclude that 18% of all Cs-137 in the peat is still bioavailable. Despite of the low quantity of bioavailable fraction of Cs-137 its transfer factor reached extremely high values. In the case of Pu, 64% of its total amount was associated with fulvic/humic acids which resulted in the high transfer factor from peat to plants. 27 years after the Chernobyl nuclear accident, the significant part of radionuclides deposited in peatland is still bioavailable. - Highlights: • Decrease of exchangeable 137 Cs and its increase in residual fraction with depth. • High 137 Cs transfer factor contrary to its low quantity in bioavailable fractions. • Fulvic/humic acids are a more effective carrier for Pu than for Cs

  19. A simple method for the deconvolution of 134 Cs/137 Cs peaks in gamma-ray scintillation spectrometry

    International Nuclear Information System (INIS)

    Darko, E.O.; Osae, E.K.; Schandorf, C.

    1998-01-01

    A simple method for the deconvolution of 134 Cs / 137 Cs peaks in a given mixture of 134 Cs and 137 Cs using Nal(TI) gamma-ray scintillation spectrometry is described. In this method the 795 keV energy of 134 Cs is used as a reference peak to calculate the activity of the 137 Cs directly from the measured peaks. Certified reference materials were measured using the method and compared with a high resolution gamma-ray spectrometry measurements. The results showed good agreement with the certified values. The method is very simple and does not need any complicated mathematics and computer programme to de- convolute the overlapping 604.7 keV and 661.6 keV peaks of 134 Cs and 137 Cs respectively. (author). 14 refs.; 1 tab., 2 figs

  20. Development of certified matrix reference materials for quality assurance of screening 134Cs and 137Cs in food

    International Nuclear Information System (INIS)

    Ishizu, H.; Yamada, T.

    2013-01-01

    A certified reference material using activated alumina powder certified for activity of 134 Cs and 137 Cs was developed. The results of the verification and the certification are described. The certified reference material can be used for quality assurance of screening activity measurements of 134 Cs and 137 Cs in food/foodstuffs. Commercially available equipments were experimentally tested using the CRM and another CRM including 40 K. The results of these tests are also shown. - Highlights: • CRM of 134 Cs and 137 Cs using activated alumina was developed. • CRM including 134 Cs, 137 Cs and 40 K was also developed. • Results of experimental performance test of commercial inspection equipments using CRMs were shown

  1. Cesium platinide hydride 4Cs{sub 2}Pt.CsH: an intermetallic double salt featuring metal anions

    Energy Technology Data Exchange (ETDEWEB)

    Smetana, Volodymyr [Ames Laboratory, US Department of Energy, and Critical Materials Institute, Ames, Iowa, 50011-3020 (United States); Mudring, Anja-Verena [Ames Laboratory, US Department of Energy, and Critical Materials Institute, Ames, Iowa, 50011-3020 (United States); Department of Materials Sciences and Engineering, Iowa State University, Ames, Iowa, 50011-3111 (United States)

    2016-11-14

    With Cs{sub 9}Pt{sub 4}H a new representative of ionic compounds featuring metal anions can be added to this rare-membered family. Cs{sub 9}Pt{sub 4}H exhibits a complex crystal structure containing Cs{sup +} cations, Pt{sup 2-} and H{sup -} anions. Being a red, transparent compound its band gap is in the visible range of the electromagnetic spectrum and the ionic type of bonding is confirmed by quantum chemical calculations. This cesium platinide hydride can formally be considered as a double salt of the ''alloy'' cesium-platinum, or better cesium platinide, Cs{sub 2}Pt, and the salt cesium hydride CsH according to Cs{sub 9}Pt{sub 4}H≡4 Cs{sub 2}Pt.CsH. (copyright 2016 Wiley-VCH Verlag GmbH and Co. KGaA, Weinheim)

  2. Narrativas sobre la conducta suicida en pueblos indígenas colombianos, 1993-2013

    Directory of Open Access Journals (Sweden)

    Zulma C. Urrego-Mendoza

    2017-09-01

    Full Text Available Objetivo: comprender la conducta suicida que ha afectado a los pueblos indígenas de Colombia y sus procesos de determinación social, durante el periodo 1993-2013. Metodología: a partir de fuentes orales y de prensa escrita, esta investigación cualitativa fue desarrollada desde el paradigma hermenéutico-interpretativo, empleando análisis narrativo. Resultados: se evidencian manifestaciones de conducta suicida en pueblos indígenas no solo como acciones recientes, sino remitidas a hechos históricos, especialmente durante la Colonia, cuando el suicidio colectivo se empleó como repertorio de resistencia frente a la invasión y opresión. Actualmente, la emergencia de la conducta suicida en estos pueblos responde a problemas estructurales, a procesos sociales impuestos que se contraponen con las cosmovisiones indígenas, alterando sus concepciones de vida y de interacción con el territorio. Discusión: para los pueblos indígenas de Colombia, la interpretación más cercana a este problema está asociada con la exacerbación de seres y existencias espirituales que alteran el orden del territorio, desatados a partir de procesos perturbadores foráneos, tales como la presencia de actores armados, empresas transnacionales, colonos, violencia directa y estructural sobre indígenas y despojo territorial. Conclusiones: la conducta suicida en los pueblos indígenas de Colombia debe comprenderse y abordarse como el emergente de procesos estructurales destructivos de los modos de vida propios, que aseguran el buen vivir individual y colectivo de los pobladores originarios, y se ven coartados por la irrupción violenta de la sociedad mayoritaria en sus territorios.

  3. Las mujeres indígenas venezolanas y sus logros en los albores del Siglo XXI

    OpenAIRE

    Rincón-Soto, Lucía del Carmen

    2014-01-01

    El artículo ofrece un recuento del paradigmático proceso de empoderamiento de las indígenas venezolanas y un balance de cómo su pensamiento se ha articulado para fortalecer su identidad. Se realiza un breve recorrido de la situación de las mujeres desde el proceso de colonización hasta los albores del siglo XXI. Si bien las mujeres indígenas latinoamericanas, en general, y las venezolanas, en particular, tienen muchos desafíos, no se puede dejar de destacar su valiosa participación en los esc...

  4. Notas sobre a indústria do entretenimento musical e identidade no Brasil

    Directory of Open Access Journals (Sweden)

    Simone Pereira de Sá

    2008-09-01

    Full Text Available O artigo aborda questões ligadas à indústria de música de massa no Brasil, articuladas à identidade e à crítica jornalística. Abstract: The article focus on questions about the massive musical industry on Brazil, articulated to identity and journalism criticism. Palavras-chave: indústria cultural; música massiva; identidade; crítica jornalística Key-words: cultural industry; massive music; identity; journalistic criticism

  5. Los mayas del altiplano: supervivencia indígena en Chiapas y Guatemala

    OpenAIRE

    Lovell, W. George

    2002-01-01

    En el contexto americano, pocos grupos indígenas han demostrado la capacidad de sobrevivir a lo largo de la historia como los mayas del altiplano. Hoy día en Chiapas existen más de un millón de indígenas mayas, un número que asciende a cinco o seis millones en el caso de Guatemala. Los pueblos mayas han respondido a la invasión y a la dominación para conservar elementos importantes de su cultura. Este artículo discute las formas en que los mayas del altiplano se han adaptado para sobrevivir a...

  6. A Indústria de Defesa, Inovação e Competitividade

    OpenAIRE

    Fernandes, Vítor Ramon

    2007-01-01

    O presente artigo pretende contribuir para um melhor conhecimento da indústria de defesa, no sentido de se entender de que forma a inovação e a transferência de tecnologia concorrem para o aumento da competitividade da economia. Após uma análise dos principais desenvolvimentos nesta indústria no pós-Guerra Fria, apresentam-se e analisam-se algumas medidas existentes para o desenvolvimento de uma estratégia para o caso português, que permita beneficiar da inserção...

  7. Corporeidade indígena sob o ângulo da praxeologia

    OpenAIRE

    Soares, Artemis

    2011-01-01

    Neste estudo procumaos discutir a cororeidade indígena sob vários ângulos, incluindo a visão da praxiologia motriz. Sabemos que poucos estudos têm sido feitos sobre o corpo do indígena brasileiro e que estes muitas vezes nada propõem de novo, já que não conseguem ultrapassar certos limites, impostos pela sua própria condição de herdeiro de um pensamento que se propõe ser universalista. Alguns estudos sugerem novos elementos conceituais a serem desenvolvidos nas pesquisas de campo com popul...

  8. Migraciones indígenas a las ciudades de México y Tijuana

    OpenAIRE

    Velasco Ortiz, Laura

    2007-01-01

    Este artículo revisa la literatura sobre la migración de poblaciones indígenas a las ciudades de México y Tijuana durante la segunda mitad del siglo XX, con objeto de sistematizar los supuestos y hallazgos de investigaciones realizadas en torno al proceso de integración de los indígenas al medio urbano. El primer apartado presenta la revisión de la literatura sobre la Ciudad de México y algunos trabajos importantes sobre otras ciudades como Oaxaca y Guadalajara, todo lo cual se organiza en fo...

  9. Los movimientos indígenas de Colombia y los problemas del medió-ambiente

    OpenAIRE

    Espinel Souares, Anastassia

    2003-01-01

    Presentación La multiculturalidad de la Ciudad de México y los Derechos Indígenas Oehmichen, Cristina Conceptos indígenas de la formación territorial y Etno-Político frente al Estado Republicano-Nacional Fischer, Eva Disputas matrimoniales y cambio social en Coyutla, Veracruz (México) Chenaut, Victoria El debate indio sobre la ciudadanía multicultural en México: La revuelta por la dignidad Valladares de la Cruz, Laura Análisis de las actitudes de políticos criollos ...

  10. La multiculturalidad de la Ciudad de México y los Derechos Indígenas

    OpenAIRE

    Oehmichen, Cristina

    2003-01-01

    Presentación La multiculturalidad de la Ciudad de México y los Derechos Indígenas Oehmichen, Cristina Conceptos indígenas de la formación territorial y Etno-Político frente al Estado Republicano-Nacional Fischer, Eva Disputas matrimoniales y cambio social en Coyutla, Veracruz (México) Chenaut, Victoria El debate indio sobre la ciudadanía multicultural en México: La revuelta por la dignidad Valladares de la Cruz, Laura Análisis de las actitudes de políticos criollos ...

  11. Derechos humanos de los pueblos indígenas: Panorama colombiano

    OpenAIRE

    Omar Huertas; Danilo Ortíz

    2009-01-01

    La crisis de los derechos humanos que sufre Latinoamérica se ve reflejada en la cantidad significativa de pueblos indígenas, que pertenecen a estos países, sometidos a procesos de discriminación, despojo, neoliberalismo económico y globalización. Estas circunstancias han condenado a estas comunidades al subdesarrollo y a una grave situación que pone en riesgo su existencia. En el presente artículo se hará unanálisis de la situación de los derechos de la población indígena en Colombia, teniend...

  12. Benchmarking e a indústria do conhecimento: um estudo de caso

    OpenAIRE

    Maciel Filho, Adalberto Rego; Aquino, Miriam Cunha de; Sales, Nayade Kennedy

    2016-01-01

    Resumo Estudo de caso das Bibliotecas Indústria do Conhecimento (IDCs) do sistema do Serviço Social da Indústria-Sesi localizadas em Alagoas (25), Paraíba (10),Pernambuco (18), Rio Grande do Norte (10), especificamente as IDCs Públicas, objetivando analisar o seu desempenho e apresentar oportunidades para incremento de frequência utilizando benchmarking. Inclui revisão de literatura de projetos nacionais de uso de benchmarking, bem como estudos e considerações sobre esse processo. Para anális...

  13. Indústria 4.0 / Status Report Marc de referència sobre la Indústria 4.0 octubre 2016

    OpenAIRE

    Fonseca Casas, Pau

    2016-01-01

    L¿objecte d¿aquest document és donar a conèixer els elements de la Indústria 4.0 als enginyers, al teixit industrial català i a la societat, podent ser utilitzat com a instrument que faciliti el debat i la construcció d'un discurs normalitzat al voltant de la mateixa. Existeix el debat sobre fins a quin punt el màrqueting de la Indústria 4.0 va per davant de la realitat o a l¿inrevés. En qualsevol cas, l¿objectiu de la Comissió i4.0 d¿Enginyers de Catalunya és contribuir a l¿establiment de ba...

  14. Desigualdades na mortalidade por suicídio entre indígenas e não indígenas no estado do Amazonas, Brasil

    OpenAIRE

    Souza, Maximiliano Loiola Ponte de; Orellana, Jesem Douglas Yamall

    2013-01-01

    OBJETIVO: Analisar as taxas e algumas características da mortalidade por suicídio entre indígenas e não indígenas no Amazonas. MÉTODO: Estudo de coorte retrospectiva, em que os dados de óbito foram obtidos no Sistema de Informações sobre Mortalidade e os populacionais no Instituto Brasileiro de Geografia e Estatística. Foram utilizados todos os registros de suicídio do período de 2006-2010 e a interpolação geométrica anual para a estimação das subpopulações. RESULTADOS: Ocorreram 688 suicídio...

  15. Justicia indígena en tiempos multiculturales: El caso del juzgado indígenas de Cuetzalan, Puebla en México

    Directory of Open Access Journals (Sweden)

    Adriana Terven Salinas

    2014-12-01

    Full Text Available A partir del reconocimiento constitucional de la diversidad cultural en México, las relaciones entre el Estado y los pueblos indígenas parecen tomar un cauce distinto a como habían venido configurándose, basadas en relaciones de poder y discriminación. No obstante, detrás del discurso multicultural se siguen reproduciendo representaciones sociales que otrora fueron legitimadas por las políticas indigenistas planteando retos para el cabal reconocimiento de derechos culturales. El presente artículo pretende evidenciar desde la experiencia del juzgado indígena de Cuetzalan, Puebla, cómo el proyecto estatal mantiene una misma intención: asegurar la permanencia del modelo monocultural de Estado, así como atender los nuevos imperativos internacionales de reforma estructural.

  16. Estudiantes no indígenas que ingresaron a la Licenciatura en Educación Indígena, sus actitudes y expectativas

    Directory of Open Access Journals (Sweden)

    MA. GUADALUPE MILLÁN DENA

    2013-01-01

    cumplían con el perfil de ingreso. Ello impactó en la modificación improvisada de la práctica docente de los asesores, en la búsqueda de nuevas estrategias didácticas y en la reestructuración de los programas. Primordialmente, se analizan las expectativas de formación y del campo laboral que los estudiantes no indígenas tenían cuando ingresan a la licenciatura. Uno de los aspectos más notorios con el ingreso de los alumnos “mestizos”, y que propició la realización de este trabajo, fue la actitud excluyente hacia los alumnos indígenas, que contrastaba con el discurso que expresaban.

  17. Using Multiple Paths in NoCs for Guaranteed Resource Allocation and Improved Best Effort Performance in NoCs.

    NARCIS (Netherlands)

    Ovadia, I.; Ha, Y.; Corporaal, H.

    2005-01-01

    Networks-on-Chips (NoCs) provide communication platforms to Systems-on-Chips (SoCs). In NoCs, channels are generally shared between traffic flows, resulting in contention. However, certain flows require delivery guarantees. Differentiated quality-of-service (QoS) is achieved by providing guaranteed

  18. Distribution of 137Cs in the American Coot (Fulica americana)

    International Nuclear Information System (INIS)

    Potter, C.M.; Brisbin, I.L. Jr.; McDowell, S.G.; Whicker, F.W.

    1989-01-01

    Caesium-137 concentrations were determined for major tissue and organ components of Americal Coots (Fulica americana) wintering on two contaminated reactor cooling reservoirs on the US Department of Energy's Savannah River Plant. Concentrations reflected the relative contamination levels of the two reservoirs. A low ratio of 137 Cs in gut contents to that in muscle indicated that the coots used in the study were established winter residents and tissue 137 Cs had probably reached equilibrium with intake. The contributions of each component to the whole body weight and total 137 Cs body burden were calculated. Skeletal muscle exhibited the highest 137 Cs concentrations and comprised 35% of the total 137 Cs body burden. Gut contents represented 17% of the total body burden. Various other organs were intermediate and bone exhibited the lowest 137 Cs concentrations. Linear regressions were determined for 137 Cs concentrations in skeletal muscle, liver, kidney, gastrointestinal (GI) tract tissue and gut contents, as functions of whole-body concentrations. (author)

  19. Water culture of the rice containing Cs-137

    International Nuclear Information System (INIS)

    Choi, Yong Ho; Keum, Dong Kwon; Lim, Kwang Muk; Jun, In; Park, Doo Won

    2008-10-01

    Pot experiments were carried out in a greenhouse in order to produce Cs-137-containing rice seeds as a source material for use in manufacturing reference rice samples of a high Cs-137 activity. Two kinds of soil were used and two pots were prepared for each kind of soil. Rice plants were water-cultured in the pots and Cs-137 was applied to the surface water to induce a Cs-137 contamination of rice seeds via a plant uptake of Cs-137. Mature rice plants were harvested and Cs-137-containing rice seeds were obtained after some treatment of the harvested plants. These produced rice seeds are going to be provided for the KRISS so as to be used in manufacturing reference rice samples for Cs-137

  20. 133Cs NMR investigation of 2D frustrated Heisenberg antiferromagnet, Cs2CuCl4

    Science.gov (United States)

    Vachon, M.-A.; Kundhikanjana, W.; Straub, A.; Mitrovic, V. F.; Reyes, A. P.; Kuhns, P.; Coldea, R.; Tylczynski, Z.

    2006-10-01

    We report 133Cs nuclear magnetic resonance (NMR) measurements on the 2D frustrated Heisenberg antiferromagnet Cs2CuCl4 down to 2 K and up to 15 T. We show that 133Cs NMR is a good probe of the magnetic degrees of freedom in this material. Cu spin degrees of freedom are sensed through a strong anisotropic hyperfine coupling. The spin excitation gap opens above the critical saturation field. The gap value was determined from the activation energy of the nuclear spin-lattice relaxation rate in a magnetic field applied parallel to the Cu chains (\\skew3\\hat{b} axis). The values of the g-factor and the saturation field are consistent with the neutron-scattering and magnetization results. The measurements of the spin spin relaxation time are exploited to show that no structural changes occur down to the lowest temperatures investigated.

  1. Foundation Flash CS4 for Designers

    CERN Document Server

    Green, Tom

    2008-01-01

    In this book, you'll learn:* How to create effective animations using the new Motion Editor and animation tools * How to use the new 3D features to animate objects in 3D space * Best-practice tips and techniques from some of the top Flash practitioners on the planet * How to create captioned video and full-screen video, and deploy HD video using Flash * Techniques for using the Flash UI components as well as XML documents to create stunning,interactive presentations If you're a Flash designer looking for a solid overview of Flash CS4, this book is for you. Through the use of solid and practica

  2. Reactor Configuration Development for ARIES-CS

    International Nuclear Information System (INIS)

    Ku LP

    2005-01-01

    New compact, quasi-axially symmetric stellarator configurations have been developed as part of the ARIES-CS reactor studies. These new configurations have good plasma confinement and transport properties, including low losses of α particles and good integrity of flux surfaces at high β. We summarize the recent progress by showcasing two attractive classes of configurations--configurations with judiciously chosen rotational transforms to avoid undesirable effects of low order resonances on the flux surface integrity and configurations with very small aspect ratios (∼2.5) that have excellent quasi-axisymmetry and low field ripples

  3. 137Cs - Brachytherapy sources : a technology scenario

    International Nuclear Information System (INIS)

    Varma, R.N.

    2001-01-01

    Cancer has emerged as one of the major cause of morbidity and mortality all over the world. India houses world's second largest population and registers 4-5 lakhs new cancer cases every year. Cancer of cervix is most common form of malignancy among Indian women. Radiation therapy, especially intracavity brachytherapy in conjunction with other modalities like surgery, chemotherapy has been found to be highly effective for the management and control of cervical carcinoma at all stages. A technology has been developed indigenously for the fabrication of 137 Cs sources for brachytherapy applications

  4. Dreamweaver CS55 The Missing Manual

    CERN Document Server

    McFarland, David

    2011-01-01

    Dreamweaver is the tool most widely used for designing and managing professional-looking websites, but it's a complex program. That's where Dreamweaver CS5.5: The Missing Manual comes in. With its jargon-free explanations, 13 hands-on tutorials, and savvy advice from Dreamweaver expert Dave McFarland, you'll master this versatile program with ease. Get A to Z guidance. Go from building your first web page to creating interactive, database-driven sites.Build skills as you learn. Apply your knowledge through tutorials and downloadable practice files.Create a state-of-the-art website. Use powerf

  5. Adobe Photoshop CS5 for photographers

    CERN Document Server

    Evening, Martin

    2010-01-01

    With the new edition of this proven bestseller, Photoshop users can master the power of Photoshop CS5 with internationally renowned photographer and Photoshop hall-of-famer Martin Evening by their side.  In this acclaimed reference work, Martin covers everything from the core aspects of working in Photoshop to advanced techniques for professional results. Subjects covered include organizing a digital workflow, improving creativity, output, automating Photoshop, and using Camera RAW. The style of the book is extremely clear, with real examples, diagrams, illustrations, and step-by-step ex

  6. Flash CS5 The Missing Manual

    CERN Document Server

    Grover, Chris

    2010-01-01

    Once you know how to use Flash, you can create everything from simple animations to high-end desktop applications, but it's a complex tool that can be difficult to master on your own-unless you have this Missing Manual. This book will help you learn all you need to know about Flash CS5 to create animations that bring your ideas to life. Learn animation basics. Find everything you need to know to get started with FlashMaster the Flash tools. Learn the animation and effects toolset, with clear explanations and hands-on examplesUse 3D effects. Rotate and put objects in motion in three dimensions

  7. 137CS in cod from Barents sea

    International Nuclear Information System (INIS)

    Kellermann, H.-J.; Kanisch, G.; Krueger, A.

    2003-01-01

    After publication of the Yablovkov report about dumping of radioactive waste by the former Soviet Union the Institute for Fishery Ecology has analysed fish from Barents Sea for radioactivity. In all studies 137 Cs concentrations in cod fillet showed a clear dependance from fish length. Results from an analysis of covariance for cod of 70 cm length have minor changes within Barents Sea and indicate a rapid decay to a value as is expected for marine fish which is only influenced by global fallout. (orig.)

  8. Foundation Flash CS5 for Designers

    CERN Document Server

    Green, T

    2010-01-01

    Flash is one of the most engaging, innovative, and versatile technologies available - allowing the creation of anything from animated banners and simple cartoons to Rich Internet Applications, interactive videos, and dynamic user interfaces for web sites, kiosks, devices, or DVDs. The possibilities are endless, and now it just got better. Flash CS5 boasts a host of new features, including better support for mobile devices, a whole new animation engine enabling full manipulation of tweens and paths, custom easing, improved inverse kinematics, a revamped timeline, built-in 3D, and much more. Thi

  9. Exact capture probability analysis of GSC receivers over i.n.d. Rayleigh fading channels

    KAUST Repository

    Nam, Sungsik; Yang, Hongchuan; Alouini, Mohamed-Slim; Kim, Dongin

    2013-01-01

    variates. With this motivation in mind, we first provide in this paper some new order statistics results in terms of both moment generating function (MGF) and probability density function (PDF) expressions under an i.n.d. assumption and then derive a new

  10. La transformation économique de l'Inde favorise-t-elle l ...

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

    La transformation économique de l'Inde favorise-t-elle l'autonomisation ... sur les plans social et économique, il peut arriver que la participation des femmes à la vie ... Related content. Call for proposals for three Asian market-entry studies.

  11. Conception de rues sûres et inclusives en Inde | CRDI - Centre de ...

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

    17 nov. 2016 ... ... alors que les cas de violence à l'égard des femmes sont en partie liés ... inégalités et violence en milieu urbain en Inde : vers un urbanisme plus inclusif. ... Comprendre les liens entre le genre, la vulnérabilité et la violence ...

  12. 21 CFR 312.120 - Foreign clinical studies not conducted under an IND.

    Science.gov (United States)

    2010-04-01

    ... accept as support for an IND or application for marketing approval (an application under section 505 of... independent ethics committee (IEC) before initiating a study, continuing review of an ongoing study by an IEC... marketing approval a study that does not meet the conditions of paragraph (a)(1) of this section, FDA will...

  13. El título indígena y su aplicabilidad en el Derecho chileno

    Directory of Open Access Journals (Sweden)

    Gonzalo Aguilar Cavallo

    2005-01-01

    Full Text Available En las últimas décadas, una de las reivindicaciones más poderosas de los pueblos indígenas ha sido el reconocimiento de los derechos a la tierra. Los pueblos indígenas consideran que tienen un título inmemorial a usar y poseer las tierras que ellos ocupan o han ocupado tradicionalmente. Ellos encuentran en su Derecho propio el mejor argumento para defender esta reivindicación. El título indígena a poseer sus tierras ha sido aceptado en forma creciente por los tribunales, tanto extranjeros como internacionales, lo cual constituye un reconocimiento notable de los derechos indígenas. Tanto los casos internacionales como del derecho comparado podrían inspirar las decisiones de nuestros tribunales en esta materia.One of the most powerful indigenous peoples' claims over the last decades has been the recognition of land rights. Indigenous peoples consider that they have an immemorial entitlement to use and possess the lands they occupy or have traditionally occupied. They find in their own law the best argument to support this claim. Such an entitlement to possess and own lands has increasingly been accepted by foreign and international courts, which constitute a noteworthy recognition of indigenous rights. International and comparative case law might inspire judgments of our national courts about this matter.

  14. A General Construction of IND-CCA2 Secure Public Key Encryption

    DEFF Research Database (Denmark)

    Kiltz, Eike; Malone-Lee, John

    2003-01-01

    We propose a general construction for public key encryption schemes that are IND-CCA2 secure in the random oracle model. We show that the scheme proposed in [1, 2] fits our general framework and moreover that our method of analysis leads to a more efficient security reduction....

  15. Inde | Page 3 | CRDI - Centre de recherches pour le développement ...

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

    Read more about Know Violence in Childhood – Inde : Défense des droits, communication et mobilisation des médias. Langue French. Read more about Comprendre l'accès aux outils numériques et leur utilisation dans les pays du Sud. Langue French. Read more about Soutien technique aux projets pilotes de couverture ...

  16. Los dererchos humanos de las etnias indígenas en colombia

    Directory of Open Access Journals (Sweden)

    Javier Ignacio Niño Cubillos

    2005-01-01

    Full Text Available El análisis de los mecanismos de protección de los derechos humanos de los pueblos indígenas exige un desarrollo epistemológico que permita reconocer su carácter pluriétnico y multicultural. Invita a una reflexión de las posturas occidentales del individualismo liberal y de los derechos colectivos en relación con los DH. Este desarrollo normativo parte de un momento histórico específico y plantea el carácter ambiguo de la globalización, ya que la homogenización cultural necesaria para la permeabilidad de los mercados factura la emergencia de los pueblos indígenas en defensa de sus identidades Este escenario se ilustra desde distintas aristas del caso colombiano, comenzando con el limbo legal de la Jurisdicción Especial Indígena hasta la manera diferenciada como las comunidades indígenas responden al conflicto armado o demandan políticas públicas que garanticen sus derechos

  17. Violência e apagamento da voz indígena no Brasil - O caso Yanomami

    Directory of Open Access Journals (Sweden)

    Priscila Maria de Barros Borges

    2016-03-01

    Full Text Available O presente texto apresenta discussão sobre a lacuna na História Oficial brasileira que corresponde à voz indígena, ainda hoje silenciada. Pretende demonstrar que este silenciamento foi/é construído através de violências de várias ordens ao longo da constituição de nossa historiografia. Na atualidade as diversas minorias têm promovido um movimento de contar sua própria versão da História, através da publicação de livros e produção de documentários. Entre os povos indígenas não é diferente, exemplo disso é o livro A queda do céu, assinado pelo xamã e líder yanomami Davi Kopenawa em parceria com o antropólogo Bruce Albert. A obra A queda do céu, é aqui brevemente interpretada à luz dos conceitos de memória e testemunho, dando destaque à necessidade de que a voz indígena seja disseminada e ouvida, principalmente entre a sociedade não-indígena.

  18. Movimientos de base indígena y fase pre-constituyente de Bolivia (Tema Central)

    OpenAIRE

    Sandoval, Carla

    2007-01-01

    El presente artículo ofrece un panorama de la conformación de espacios de reflexión y diálogo abiertos por las organizaciones de base indígenas de los movimientos sociales de Bolivia durante el periodo Pre-constituyente.

  19. A presença feminina nas indústrias de lingerie na cidade de Franca

    Directory of Open Access Journals (Sweden)

    Mayara C. Freitas Pereira

    2008-12-01

    Full Text Available Dados recentes nos comprovam que as indústrias de lingerie têm apresentado considerável crescimento na cidade de Franca/SP, cuja história sempre se pautou pela indústria do calçado. Devido à crise no setor calçadista, sobretudo em razão da intensificação da concorrência com a indústria dos países asiáticos, muitas grandes fábricas de calçados foram fechadas e, com a dispensa de mão-de-obra, houve um processo de reorganização da estrutura fabril, protagonizado, em especial, por aqueles que buscavam nova inserção no mercado de trabalho. Diante deste quadro nasce uma nova vocação empresarial comandada basicamente por mulheres, e que está abrindo postos de trabalho para outras mulheres - a indústria de lingerie, que vem crescendo notoriamente. Partimos de um pressuposto inicial de que muitas destas mulheres, hoje à frente da incipiente indústria de lingerie, tiveram alguma experiência pregressa nas indústrias calçadistas, que empregam expressiva mão-de-obra feminina, sobretudo nos setores de apara e corte de couro, pintura e embalagem, sem contar os serviços do terceiro setor em que a presença feminina é, em qualquer circunstância, relevante. Já por estarem num ambiente econômico-industrial relacionado à moda, a transposição do calçado para a lingerie, em que pese as diferenças óbvias, representou para estas mulheres um reajuste em suas antigas qualificações como industriárias do calçado. Este estudo, em andamento, tem como fito levantar dados a respeito do histórico dessa incipiente indústria, e, através do relato dessas mulheres, conhecer suas trajetórias de vida e as experiências que trouxeram para essa nova realidade. Intenta também reconhecer quais foram as estratégias utilizadas para se reorganizarem nos espaços produtivos, que, em alguns casos é a própria casa, além de conhecer e identificar outras experiências que se articulam, no mundo do trabalho.

  20. Hybridization of Single Nanocrystals of Cs4PbBr6 and CsPbBr3.

    Science.gov (United States)

    Weerd, Chris de; Lin, Junhao; Gomez, Leyre; Fujiwara, Yasufumi; Suenaga, Kazutomo; Gregorkiewicz, Tom

    2017-09-07

    Nanocrystals of all-inorganic cesium lead halide perovskites (CsPbX 3 , X = Cl, Br, I) feature high absorption and efficient narrow-band emission which renders them promising for future generation of photovoltaic and optoelectronic devices. Colloidal ensembles of these nanocrystals can be conveniently prepared by chemical synthesis. However, in the case of CsPbBr 3 , its synthesis can also yield nanocrystals of Cs 4 PbBr 6 and the properties of the two are easily confused. Here, we investigate in detail the optical characteristics of simultaneously synthesized green-emitting CsPbBr 3 and insulating Cs 4 PbBr 6 nanocrystals. We demonstrate that, in this case, the two materials inevitably hybridize, forming nanoparticles with a spherical shape. The actual amount of these Cs 4 PbBr 6 nanocrystals and nanohybrids increases for synthesis at lower temperatures, i.e., the condition typically used for the development of perovskite CsPbBr 3 nanocrystals with smaller sizes. We use state-of-the-art electron energy loss spectroscopy to characterize nanoparticles at the single object level. This method allows distinguishing between optical characteristics of a pure Cs 4 PbBr 6 and CsPbBr 3 nanocrystal and their nanohybrid. In this way, we resolve some of the recent misconceptions concerning possible visible absorption and emission of Cs 4 PbBr 6 . Our method provides detailed structural characterization, and combined with modeling, we conclusively identify the nanospheres as CsPbBr 3 /Cs 4 PbBr 6 hybrids. We show that the two phases are independent of each other's presence and merge symbiotically. Herein, the optical characteristics of the parent materials are preserved, allowing for an increased absorption in the UV due to Cs 4 PbBr 6 , accompanied by the distinctive efficient green emission resulting from CsPbBr 3 .

  1. Luminescent CsPbI.sub.3./sub. and Cs.sub.4./sub.PbI.sub.6./sub. aggregates in annealed CsI:Pb crystals

    Czech Academy of Sciences Publication Activity Database

    Babin, V.; Fabeni, P.; Nikl, Martin; Nitsch, Karel; Pazzi, G.P.; Zazubovich, S.

    2001-01-01

    Roč. 226, č. 2 (2001), s. 419-428 ISSN 0370-1972 Institutional research plan: CEZ:AV0Z1010914 Keywords : CsPbI 3 * Cs 4 PbI 6 * nanoaggregates * luminescence Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 0.873, year: 2001

  2. Etnoeducación Indígena Intercultural en el Caribe Colombiano

    Directory of Open Access Journals (Sweden)

    Clemente Mendoza Castro

    2015-10-01

    Full Text Available El ensayo resume un avance del proyecto “Estudios etnoeducativos y curriculares en el Caribe colombiano”, tiene el propósito de reflexionar sobre la etnoeducación en Colombia como aporte a la educación desde las prácticas pedagógicas de los etnoeducadores indígenas. Se analiza la historia de la etnoeducación indígena en Colombia y a manera de ejemplo sintetiza las experiencias etnoinvestigativas que se desarrollan en las escuelas indígenas de la Sierra Nevada de Santa Marta, La Guajira y el Atlántico, visibilizando la visión que tienen los maestros indígenas de etnoeducación y currículo, prácticas pedagógicas, etnoinvestigación, formando la aproximación de un programa etnoeducativo curricular pensado desde la realidad social e intercultural en el Caribe colombiano. Se propone con argumentación la aproximación a un modelo curricular integrado desde la etnoeducación indígena intercultural para el Caribe colombiano.AbstractThis essay summarizes an advance of the project Ethnoeducational and curricular studies in the Colombian Caribbean, and its purpose is to reflect on the ethnoeducation in Colombia as a contribution to the education from pedagogical practices of native ethnoeducators. The history of the native ethnoeducation in Colombia is analyzed and ethnoresearch experiences carried out in the native schools at Sierra Nevada de Santa Marta, Guajira and Atlántico are synthesized making evident teachers’ view on ethnoeducation and curriculum, pedagogical practices, ethnoresearch, and training. This is an approximation to an ethnoeducational and curricular program thought from the social and intercultural reality in the Colombian Caribbean. The approximation to a curricular integrated model from the intercultural native ethnoeducation for the Colombian Caribbean it is proposed with arguments.

  3. Photodissociation of CS from Excited Rovibrational Levels

    Science.gov (United States)

    Pattillo, R. J.; Cieszewski, R.; Stancil, P. C.; Forrey, R. C.; Babb, J. F.; McCann, J. F.; McLaughlin, B. M.

    2018-05-01

    Accurate photodissociation cross sections have been computed for transitions from the X 1Σ+ ground electronic state of CS to six low-lying excited electronic states. New ab initio potential curves and transition dipole moment functions have been obtained for these computations using the multi-reference configuration interaction approach with the Davidson correction (MRCI+Q) and aug-cc-pV6Z basis sets. State-resolved cross sections have been computed for transitions from nearly the full range of rovibrational levels of the X 1Σ+ state and for photon wavelengths ranging from 500 Å to threshold. Destruction of CS via predissociation in highly excited electronic states originating from the rovibrational ground state is found to be unimportant. Photodissociation cross sections are presented for temperatures in the range between 1000 and 10,000 K, where a Boltzmann distribution of initial rovibrational levels is assumed. Applications of the current computations to various astrophysical environments are briefly discussed focusing on photodissociation rates due to the standard interstellar and blackbody radiation fields.

  4. The radiation chemistry of the Cs-7SB modifier used in Cs and Sr extraction

    International Nuclear Information System (INIS)

    Swancutt, Katy L.; Cullen, Thomas D.; Mezyk, Stephen P.; Elias, Gracy; Bauer, William F.; Peterman, Dean R.; Riddle, Catherine L.; Ball, R. Duane; Mincher, Bruce J.; Muller, James J.

    2011-01-01

    The compound 1-(2,2,3,3,-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol, also called Cs-7SB, is used as a solvent modifier in formulations containing calixarenes and crown ethers for cesium and/or strontium extraction from nuclear waste solutions. The compound solvates complexes of both metals and concentration decreases result in lowered extraction efficiency for both. The use of Cs-7SB in nuclear solvent extraction ensures that it will be exposed to high radiation doses, and thus its radiation chemical robustness is a matter of interest in the design of extraction systems employing it. The behavior of the compound in irradiated solution, both in the presence and absence of a nitric acid aqueous phase was investigated here using steady state and pulsed radiolysis techniques. The rate constants for the aqueous reactions of Cs-7SB with H, OH, NO 3 and NO 2 radicals are reported. UPLC-UV-MS results were used to identify major products of the radiolysis of Cs-7SB in contact with nitric acid, and revealed the production of hydroxylated nitro-derivatives. Reaction mechanisms are proposed and it is concluded that the aryl ether configuration of this molecule makes it especially susceptible to nitration in the presence of radiolytically-produced nitrous acid. Fluoride yields are also given under various conditions.

  5. Postsynthesis Transformation of Insulating Cs4PbBr6 Nanocrystals into Bright Perovskite CsPbBr3 through Physical and Chemical Extraction of CsBr.

    Science.gov (United States)

    Palazon, Francisco; Urso, Carmine; De Trizio, Luca; Akkerman, Quinten; Marras, Sergio; Locardi, Federico; Nelli, Ilaria; Ferretti, Maurizio; Prato, Mirko; Manna, Liberato

    2017-10-13

    Perovskite-related Cs 4 PbBr 6 nanocrystals present a "zero-dimensional" crystalline structure where adjacent [PbBr 6 ] 4- octahedra do not share any corners. We show in this work that these nanocrystals can be converted into "three-dimensional" CsPbBr 3 perovskites by extraction of CsBr. This conversion drastically changes the optoelectronic properties of the nanocrystals that become highly photoluminescent. The extraction of CsBr can be achieved either by thermal annealing (physical approach) or by chemical reaction with Prussian Blue (chemical approach). The former approach can be simply carried out on a dried film without addition of any chemicals but does not yield a full transformation. Instead, reaction with Prussian Blue in solution achieves a full transformation into the perovskite phase. This transformation was also verified on the iodide counterpart (Cs 4 PbI 6 ).

  6. El laberinto de la autonomía indígena en el Ecuador: las circunscripciones territoriales indígenas en la Amazonía Central, 2010-2012

    OpenAIRE

    Ortiz-T., Pablo

    2014-01-01

    ¿Cuáles son los avatares y desencuentros presentes en el proceso de constitución de las Circunscripciones Territoriales Indígenas (CTIs) en relación a la vigencia del derecho a la autodeterminación y autogestión territorial de las nacionalidades indígenas en el Ecuador? Para responder a dicha interrogante, el artículo considera el reconocimiento al derecho a la autonomía y autodeterminación de las nacionalidades y pueblos indígenas en Ecuador. Posteriormente, analiza el alcance...

  7. Las organizaciones indígenas peruanas, pioneras de la educación intercultural bilingüe

    Directory of Open Access Journals (Sweden)

    Alfredo Rodríguez Torres

    2017-01-01

    Full Text Available El artículo aborda de manera introductoria el problema de la educación básica de los pueblos indígenas amazónicos en el Perú y las iniciativas de las organizaciones indígenas amazónicas articuladas en la AIDESEP (Asociación Interétnica de Desarrollo de la Selva Peruana para el desarrollo de la educación superior indígena intercultural; sobre todo en las experiencias de formación inicial de maestros indígenas y de profesionales de la salud con un currículo intercultural y bilingüe desde la visión del “otro indígena”. El Estado peruano tardó años en asumir la formación de maestros interculturales bilingües y abordar la educación intercultural bilingüe (EIB como política pública, pero ambas con un enfoque tradicional y funcional que mantiene la colonialidad, aun así las organizaciones indígenas siguen aportando y apostando por una EIB desde la visión de los pueblos indígenas.

  8. Transfer of Chernobyl-derived 134Cs, 137Cs, 131I and 103Ru from flowers to honey and pollen

    International Nuclear Information System (INIS)

    Bunzl, K.; Kracke, W.

    1988-01-01

    The activity concentrations of 137 Cs, 134 Cs, 131 I and 103 Ru were determined separately in honey and pollen samples collected from a single bee colony during several months after the deposition of Chernobyl fallout. The source of each honey and pollen sample was determined by pollen analysis. Although the activity concentrations in honey and pollen varied with time, the concentrations of 137 Cs and 134 Cs were, in general, higher in pollen than in honey. For 103 Ru and 131 I, these differences were comparatively small. The mean 131 I/ 137 Cs and 103 Ru/ 137 Cs ratios were about one order of magnitude higher in honey than in pollen. The mean 131 I/ 103 Ru ratio was about the same for honey and pollen. This observation, in the light of the corresponding nuclide ratios found in the deposition, suggests that 137 Cs, 134 Cs, 131 I and 103 Ru were taken up by the plant leaves and transported to nectar and pollen. The higher activity concentrations of 137 Cs and 134 Cs in pollen, relative to honey, indicate that these radionuclides behave analogously to potassium, which is also found in higher quantities in pollen. (author)

  9. The behavior of radioactive 137Cs and stable Cs at the isolated undisturbed mountain pond in Fukui, Japan

    International Nuclear Information System (INIS)

    Iwamoto, Kazumi; Kimura, Makio; Ando, Kenji; Amano, Hikaru

    2003-01-01

    The behavior of radioactive 137 Cs and stable Cs at the isolated undisturbed mountain pond in Fukui, Japan was studied for the pond water, the sedimentary grains and the soil near the pond. The concentrations of 137 Cs and stable Cs in the pond water ranged from 0.23 to 0.85 Bq/m 3 and from 0.005 to 0.018 mg/m 3 , respectively. The sedimentary grains were sorted by sieving into fractions with diameter from 2 mm to less than 38 μm. The concentrations of 137 Cs and stable Cs in the sorted grains were measured, and those of the adsorbed state were determined by subtracting the concentration of the grain matrix. The adsorbed concentrations increased with decrease in particle diameter and depended less on the kind of samples. The in-situ distribution coefficient Kd depended largely on particle diameter and increased with the decrease in diameter. The values of Kd ranged from about 20 to 1200 m 3 /kg for stable Cs and about 15 to 1000 m 3 /kg for 137 Cs, and the Kd of 137 Cs seemed to be slightly smaller than that of stable Cs. The concentration of stable Cs in the sedimentary mud was found to be close to that of the fine grains. The concentrations of stable Cs in the soil near the pond was about 7.7 mg/kg, and that of 137 Cs was about 0.6 kBq/kg for the surface layer soil and decreased with increase in soil depth. (author)

  10. Tunable CsPbBr3/Cs4PbBr6 phase transformation and their optical spectroscopic properties.

    Science.gov (United States)

    Chen, Xiao; Chen, Daqin; Li, Junni; Fang, Gaoliang; Sheng, Hongchao; Zhong, Jiasong

    2018-04-24

    As a novel type of promising materials, metal halide perovskites are a rising star in the field of optoelectronics. On this basis, a new frontier of zero-dimensional perovskite-related Cs4PbBr6 with bright green emission and high stability has attracted an enormous amount of attention, even though its photoluminescence still requires to clarification. Herein, the controllable phase transformation between three-dimensional CsPbBr3 and zero-dimensional Cs4PbBr6 is easily achieved in a facile ligand-assisted supersaturated recrystallization synthesis procedure via tuning the amount of surfactants, and their unique optical properties are investigated and compared in detail. Both Cs4PbBr6 and CsPbBr3 produce remarkably intense green luminescence with quantum yields up to 45% and 80%, respectively; however, significantly different emitting behaviors are observed. The fluorescence lifetime of Cs4PbBr6 is much longer than that of CsPbBr3, and photo-blinking is easily detected in the Cs4PbBr6 product, proving that the zero-dimensional Cs4PbBr6 is indeed a highly luminescent perovskite-related material. Additionally, for the first time, tunable emissions over the visible-light spectral region are demonstrated to be achievable via halogen composition modulations in the Cs4PbX6 (X = Cl, Br, I) samples. Our study brings a simple method for the phase control of CsPbBr3/Cs4PbBr6 and demonstrates the intrinsic luminescence nature of the zero-dimensional perovskite-related Cs4PbX6 products.

  11. Pulsed Cs beam development for the BNL polarized H- source

    International Nuclear Information System (INIS)

    Alessi, J.G.

    1983-01-01

    A pulsed Cs + beam has been developed for use on a polarized H - source. Cesium ion production is by surface ionization using a porous tungsten ionizer. While satisfactory current pulses (5 to 10 mA greater than or equal to 0.5 ms) can be obtained, the pulse shapes are a sensitive function of the ionizer temperature and Cs surface coverage. The beam optical requirements are stringent, and the optics have been studied experimentally for both Cs + and Cs 0 beams. Computer calculations are in good agreement with the observed results. The present source has delivered 2.6 mA of Cs + through the interaction region of the polarized ion source, and as much as 2.0 particle mA of Cs 0 . A new source is being built which is designed to give 15 mA through the interaction region

  12. Dynamic modelling of Cs-137 contamination in Denmark

    International Nuclear Information System (INIS)

    Oehlenschlaeger, M.

    1989-01-01

    The paper describes the structure of a dynamic food-chain transport model for Cs-137 in the Danish terrestrial environment. The model solves a set of linear, coupled differential equations in order to estimate the inventories and concentrations of Cs-137 in the soil, vegetation, animal tissue and animal product as a function of time based on the Cs-137 concentrations in the air after an accidental release. Meteorological conditions and seasonal variations in agricultural practice are included. (orig.)

  13. Uptake of Cs 137 from farmland 1986-1989

    International Nuclear Information System (INIS)

    Holmberg, M.

    1986-12-01

    The basic mechanisms of the accumulation of Cs 137 in grass, corn, oleiferous plants, potatoes etc are described. It is also presented as a function of time after the deposition. Transport of Cs 137 to milk, meat and bacon is described. A prognosis of Cs 137 in food products for the coming two years is made on basis of the estimated data. (G.B.)

  14. Evaluation of caesium atomic fountain NICT-CsF1

    International Nuclear Information System (INIS)

    Kumagai, M.; Ito, H.; Kajita, M.; Hosokawa, M.

    2008-01-01

    In this paper, we describe the first caesium atomic fountain primary frequency standard NICT-CsF1 of National Institute of Information Communications Technology (NICT) in Tokyo, Japan. The structure of the NICT-CsF1 system and evaluation procedure of the systematic frequency shifts and their uncertainties are presented. Typically, NICT-CsF1 has a frequency stability of 4 * 10 -13 /τ 1/2 and a frequency uncertainty of 1.9 * 10 -15 . (authors)

  15. 137Cs in man due to nuclear fallout

    International Nuclear Information System (INIS)

    Poulheim, K.F.

    1981-01-01

    137 Cs has been determined in man with the aid of a whole-body counter. It is shown that the specific 137 Cs content (as related to the potassium content in man) continuously decreased from 1965 through 1974. After a slight increase in 1975, possibly caused by a Chinese atmospheric nuclear test in June 1974, the 137 Cs content again decreased in the following years. (author)

  16. Indústria do conhecimento: uma poderosa engrenagem Industria del conocimiento: un poderoso engranaje Knowledge industry: a powerful mechanism

    OpenAIRE

    Vera Regina da Silva Miguelote; Kenneth Rochel de Camargo Jr

    2010-01-01

    O artigo aborda a articulação da indústria farmacêutica à indústria do conhecimento, por meio de poderosas estratégias de marketing. Com o objetivo de legitimar cientificamente seus produtos, a indústria interfere na produção de conhecimento médico. Configurando uma engrenagem de direcionamento de interesses econômicos, financia pesquisas na área de medicamentos, enviesa seus resultados e incentiva a produção e publicação de artigos científicos. Trata-se de uma engrenagem que ameaça important...

  17. Estado nutricional del hierro en niños de comunidades indígenas de Cali, Colombia

    OpenAIRE

    Bolaños-Gallardo, María Victoria; Flórez Echeverry, Ofelia; Bermúdez Escobar, Amparo; Hernández Sampayo, Luzmila; Salcedo-Cifuentes, Mercedes

    2014-01-01

    Introducción: Los escolares son susceptibles a padecer anemia y deficiencia de micronutrientes. No hay reportes del estado del hierro en indígenas del sector urbano. Objetivo: Establecer el estado del hierro en niños de 5 a 14 años de edad de seis comunidades indígenas residentes en la ciudad de Cali-Colombia. Sujetos y métodos: Se estudiaron 62 niños indígenas de 5 a 14 años de edad, sin antecedentes febriles. Se les midió hemoglobina, hematocrito, volumen corpuscular medio, ferritina y tran...

  18. Gobernabilidad y pobreza: proyectos productivos para mujeres indígenas mazahuas del Estado de México

    OpenAIRE

    Siboney Pineda Ruiz

    2006-01-01

    Bajo el enfoque de gobernabilidad, este estudio es el resultado de una investigación sobre el sitio que ocupan las mujeres indígenas en las políticas públicas de desarrollo. Al menos en los discursos, las mujeres indígenas son imprescindible en las políticas de combate a la pobreza, tanto en el ámbito internacional como en las políticas sociales, nacionales y estatales en México. Esta investigación realizada en la región central de México donde habita el grupo indígena mazahua, muestra que la...

  19. Conducta suicida en pueblos indígenas: una revisión del estado del arte

    OpenAIRE

    Vargas-Espíndola, Alejandra; Villamizar-Guerrero, Juliet Catherine; Puerto-López, Jhon Sebastián; Rojas-Villamizar, Manuel Ricardo; Ramírez-Montes, Omar Santiago; Urrego-Mendoza, Zulma Consuelo

    2017-01-01

    Resumen Introducción. Se realizó una revisión documental en bases de datos sobre conducta suicida en pueblos indígenas, tipo estado del arte, que la identificara como un problema de salud pública. Objetivo. Sistematizar el estado del conocimiento que se construye sobre la conducta suicida en pueblos indígenas, a partir de artículos e informes de investigación publicados hasta 2014. Materiales y métodos. Revisión documental de 149 documentos publicados sobre conducta suicida en pueblos indí...

  20. Study of Cs recovery by extraction chromatography (2)

    International Nuclear Information System (INIS)

    Hoshi, Harutaka; Zhang, Anyun; Uchida, Hiromi; Kuraoka, Etsushu

    2005-02-01

    In order to apply CalixR14 extractant to extraction chromatography for Cs separation, basic characteristics of CalixR14 adsorbent were studied. CalixR14 impregnated resin and CalixR14 + TBP impregnated resin were prepared. CalixR14 extractant showed no adsorption for Cs by liquid-liquid extraction and CalixR14 impregnated resin also showed no adsorption for Cs. Therefore, it is concluded that CalixR14 itself has no affinity for Cs. On the other hand, Cs was adsorbed onto CalixR14-TBP impregnated resin from a concentrated nitric acid solution. The distribution coefficients of Cs were more than 10 cm 3 /g from 2 to 6 M nitric acid. While Rb showed week adsorption, Na, K, Sr and La showed no adsorption and separation factor was over 100. A slight amount of CalixR14 and TBP was leaked from impregnated resin into the aqueous phase. Separation from simulated liquid waste was carried out by using a column packed with CalixR14-TBP adsorbent. Na, K, Sr and La were not adsorbed onto the column, however, Cs and Rb were adsorbed onto the column. Cs and Rb were eluted from the column by water. Cs and Rb were quantitatively recovered. (author)

  1. Behaviour of 134Cs in the aquatic ecosystems

    International Nuclear Information System (INIS)

    Xu Yinliang; Chen Chuanqun

    1992-07-01

    The diminution of 134 Cs in the aquatic phases and the absorption of 134 Cs by aquatic lives observe the exponential expression. i.e. Y Ae be . The relationships between the enrichment factor of 134 Cs(K) and the time(t) in the aquatic lives can be represented by a linear equation, K A + Bt. The value of K in the Alternanthera philoxeroides was about 560. That can be used for monitoring and purifying the water phase contaminated by 134 Cs. Fish can absorb 134 Cs from water phase and store it in liver and kidney. The specific activity of 134 Cs in fish flesh was low but the percentage of radioactivity was high that was about 30% of total radioactivity in the fish. River mud can strongly absorb 134 Cs and reduce the absorption by aquatic lives. It is a good adsorbent and purifying agent with low cost for treatment of 134 Cs. The K + can prevent aquatic lives from absorbing Cs + because of antagonistic function

  2. Initial interaction of {sup 137}Cs with soils

    Energy Technology Data Exchange (ETDEWEB)

    Nagasaki, S., E-mail: nagasaki@mcmaster.ca [McMaster Univ., Hamilton, Ontario (Canada); Makino, H.; Saito, T. [Univ. of Toyko, Tokyo (Japan)

    2013-07-01

    It is critical to understand the physicochemical behaviour of Cs in soil in order to progress the decontamination of soils which were contaminated by nuclear power plant accident and to improve the reliability of safety assessment of used nuclear fuel disposal. In this paper, the initial interactions of {sup 137}Cs with soils, which were sampled in Fukushima 38 days after Fukushima Accident, were investigated with sequential extraction method. It was found that there were fast and slow processes of fixation of {sup 137}Cs in clay minerals and that the organic substances might play an important role on kinetics of {sup 137}Cs in soils. (author)

  3. Behaviour of {sup 137} Cs in oxysoils and Goiania soil

    Energy Technology Data Exchange (ETDEWEB)

    Wassermann, Maria Angelica [Instituto de Radioprotecao e Dosimetria (IRD), Rio de Janeiro, RJ (Brazil)

    1997-12-31

    {sup 137} Cs soil-to-plant transfer factor obtained in oxy soils accidentally contaminated in Goiania and artificially contaminated shows that these soils present higher transfer when compared with data obtained under temperate climates. These differences were discussed in the light of pedology and geochemical partitioning. Some tropical soil characteristics as acidity, low available nutritive elements and low content of 2:1 clay type seems determine high availability for {sup 137} Cs. Results of sequential extraction showed {sup 137} Cs weakly bound to soil components and underline the importance of Fe oxides in the control of {sup 137} Cs availability in tropical climates. (author) 25 refs., 2 figs., 2 tabs.

  4. Fractionation of (137)Cs and Pu in natural peatland.

    Science.gov (United States)

    Mihalík, Ján; Bartusková, Miluše; Hölgye, Zoltán; Ježková, Tereza; Henych, Ondřej

    2014-08-01

    High Cs-137 concentrations in plants growing on peatland inspired us to investigate the quantity of its bioavailable fraction in natural peat. Our investigation aims to: a) estimate the quantity of bioavailable Cs-137 and Pu present in peat, b) verify the similarity of Cs-137 and K-40 behaviours, and c) perform a quantification of Cs-137 and Pu transfer from peat to plants. We analysed the vertical distribution of Cs-137 and Pu isotopes in the peat and their concentrations in plants growing on these places. Bioavailability of radionuclides was investigated by sequential extraction. Sequential analyses revealed that it was the upper layer which contained the majority of Cs-137 in an available form while deeper layers retained Cs-137 in immobile fractions. We can conclude that 18% of all Cs-137 in the peat is still bioavailable. Despite of the low quantity of bioavailable fraction of Cs-137 its transfer factor reached extremely high values. In the case of Pu, 64% of its total amount was associated with fulvic/humic acids which resulted in the high transfer factor from peat to plants. 27 years after the Chernobyl nuclear accident, the significant part of radionuclides deposited in peatland is still bioavailable. Copyright © 2014 Elsevier Ltd. All rights reserved.

  5. Effect of nutrition peculiarities on 137Cs uptake

    International Nuclear Information System (INIS)

    Knizhnikov, V.A.; Marej, A.N.; Borisov, B.K.; Petukhova, Eh.V.

    1980-01-01

    Reasons for different 137 Cs uptake from diets of the vegetable-animal type are studied. Indexes of accumulation multiplicity for Moscow and the Byelorussian-Ukrainian wooded district are compared. 137 Cs buildup levels in the organism of the USSR and the USA population are presented. The most probable reason for peculiarities in 137 Cs uptake from various types of diet, as well as the reason for the alterations in the uptake of this radionuclide from the diet of the same type, is the non-uniformity of 137 Cs contribution of aerial and nonaerial origin

  6. Modelling 137Cs uptake in plants from undisturbed soil monoliths

    International Nuclear Information System (INIS)

    Waegeneers, Nadia; Smolders, Erik; Merckx, Roel

    2005-01-01

    A model predicting 137 Cs uptake in plants was applied on data from artificially contaminated lysimeters. The lysimeter data involve three different crops (beans, ryegrass and lettuce) grown on five different soils between 3 and 5 years after contamination and where soil solution composition was monitored. The mechanistic model predicts plant uptake of 137 Cs from soil solution composition. Predicted K concentrations in the rhizosphere were up to 50-fold below that in the bulk soil solution whereas corresponding 137 Cs concentration gradients were always less pronounced. Predictions of crop 137 Cs content based on rhizosphere soil solution compositions were generally closer to observations than those based on bulk soil solution composition. The model explained 17% (beans) to 91% (lettuce) of the variation in 137 Cs activity concentrations in the plants. The model failed to predict the 137 Cs activity concentration in ryegrass where uptake of the 5-year-old 137 Cs from 3 soils was about 40-fold larger than predicted. The model generally underpredicted crop 137 Cs concentrations at soil solution K concentration below about 1.0 mM. It is concluded that 137 Cs uptake can be predicted from the soil solution composition at adequate K nutrition but that significant uncertainties remain when soil solution K is below 1 mM

  7. Cs separation from nitric acid solutions of radioactive waste

    International Nuclear Information System (INIS)

    Heckmann, K.; Pieronczyk, W.; Strnad, J.; Feldmaier, F.

    1989-01-01

    It was the objective of this study to selectively separate active caesium (Cs-134 and Cs-137) from acid radioactive waste solutions (especially MAW and HAWC). The following 'strategy' was designed for a separation process: synthesis of reagents which are acid-resistant and selective for caesium; precipitation of Cs + and separation of the precipitates by filtration or centrifugation or precipitation of Cs + and separation of the precipitates by flotation; caesium separation by liquid-liquid extraction. As precipitating agents, sodium tetraphenylborate (kalignost) and several of its fluorine derivatives were examined. (orig./RB) [de

  8. Microhydration of caesium compounds: Cs, CsOH, CsI and Cs₂I₂ complexes with one to three H₂O molecules of nuclear safety interest.

    Science.gov (United States)

    Sudolská, Mária; Cantrel, Laurent; Cernušák, Ivan

    2014-04-01

    Structure and thermodynamic properties (standard enthalpies of formation and Gibbs free energies) of hydrated caesium species of nuclear safety interest, Cs, CsOH, CsI and its dimer Cs₂I₂, with one up to three water molecules, are calculated to assess their possible existence in severe accident occurring to a pressurized water reactor. The calculations were performed using the coupled cluster theory including single, double and non-iterative triple substitutions (CCSD(T)) in conjunction with the basis sets (ANO-RCC) developed for scalar relativistic calculations. The second-order spin-free Douglas-Kroll-Hess Hamiltonian was used to account for the scalar relativistic effects. Thermodynamic properties obtained by these correlated ab initio calculations (entropies and thermal capacities at constant pressure as a function of temperature) are used in nuclear accident simulations using ASTEC/SOPHAEROS software. Interaction energies, standard enthalpies and Gibbs free energies of successive water molecules addition determine the ordering of the complexes. CsOH forms the most hydrated stable complexes followed by CsI, Cs₂I₂, and Cs. CsOH still exists in steam atmosphere even at quite high temperature, up to around 1100 K.

  9. CS-Studio Scan System Parallelization

    Energy Technology Data Exchange (ETDEWEB)

    Kasemir, Kay [ORNL; Pearson, Matthew R [ORNL

    2015-01-01

    For several years, the Control System Studio (CS-Studio) Scan System has successfully automated the operation of beam lines at the Oak Ridge National Laboratory (ORNL) High Flux Isotope Reactor (HFIR) and Spallation Neutron Source (SNS). As it is applied to additional beam lines, we need to support simultaneous adjustments of temperatures or motor positions. While this can be implemented via virtual motors or similar logic inside the Experimental Physics and Industrial Control System (EPICS) Input/Output Controllers (IOCs), doing so requires a priori knowledge of experimenters requirements. By adding support for the parallel control of multiple process variables (PVs) to the Scan System, we can better support ad hoc automation of experiments that benefit from such simultaneous PV adjustments.

  10. Correlations between potassium, rubidium and cesium (133Cs and 137Cs) in sporocarps of Suillus variegatus in a Swedish boreal forest

    International Nuclear Information System (INIS)

    Vinichuk, M.; Rosen, K.; Johanson, K.J.; Dahlberg, A.

    2011-01-01

    An analysis of sporocarps of ectomycorrhizal fungi Suillus variegatus assessed whether cesium ( 133 Cs and 137 Cs) uptake was correlated with potassium (K) or rubidium (Rb) uptake. The question was whether intraspecific correlations of Rb, K and 133 Cs mass concentrations with 137 Cs activity concentrations in sporocarps were higher within, rather than among, different fungal species, and if genotypic origin of sporocarps within a population affected uptake and correlation. Sporocarps (n = 51) from a Swedish forest population affected by the fallout after the Chernobyl accident were studied. The concentrations were 31.9 ± 6.79 g kg -1 for K (mean ± SD, dwt), 0.40 ± 0.09 g kg -1 for Rb, 8.7 ± 4.36 mg kg -1 for 133 Cs and 63.7 ± 24.2 kBq kg -1 for 137 Cs. The mass concentrations of 133 Cs correlated with 137 Cs activity concentrations (r = 0.61). There was correlation between both 133 Cs concentrations (r = 0.75) and 137 Cs activity concentrations (r = 0.44) and Rb, but the 137 Cs/ 133 Cs isotopic ratio negatively correlated with Rb concentration. Concentrations of K and Rb were weakly correlated (r = 0.51). The 133 Cs mass concentrations, 137 Cs activity concentrations and 137 Cs/ 133 Cs isotopic ratios did not correlate with K concentrations. No differences between, within or, among genotypes in S. variegatus were found. This suggested the relationships between K, Rb, 133 Cs and 137 Cs in sporocarps of S. variegatus is similar to other fungal species. - Highlights: → We studied uptake of Cs ( 133 Cs and 137 Cs), K and Rb by Suillus variegates sporocarps. → Genotypic origin of fungus did not affect uptake of studied elements (isotopes). → Genotypic origin did not affect correlation between Cs ( 133 Cs and 137 Cs), K and Rb.

  11. Determination of /sup 131/I, /sup 134/Cs, /sup 137/Cs in grass and cheese after Chernobyl accident in Austria

    Energy Technology Data Exchange (ETDEWEB)

    Teherani, D K

    1987-09-14

    Various samples from Styria (grass) and Salzburg (cheese) were analyzed for /sup 131/I, /sup 134/Cs and /sup 137/Cs concentration during April - July 1986 by ..gamma..-ray spectroscopy. The concentrations are reported in nCi kg/sup -1/ wet weight. The values found for /sup 131/I were 0.2-17.2 (grass), 0.1-0.5 (cheese), for /sup 134/Cs 1.1-6.2 (grass), 0.2-1.3 (cheese), for /sup 137/Cs 1.6-15.7 (grass), 0.3-2.2 (cheese). While radioactivity of /sup 131/I, /sup 134/Cs and /sup 137/Cs in cheese samples increased from May to June, it decreased in grass samples from May to July. (author) 5 refs

  12. Uptake and accumulation of 137Cs by upland grassland soil fungi: a potential pool of Cs immobilization

    International Nuclear Information System (INIS)

    Dighton, J.; Clint, G.M.; Poskitt, J.

    1991-01-01

    Reports of high concentrations of fallout radiocaesium in basidiomycete fruit bodies after the Chernobyl nuclear reactor accident and speculation that fungi could be long-term 137 Cs accumulators led us to ask if fungi could be long-term 137 Cs accumulators. We used six common upland grassland species to try to estimate their importance in the immobilization of 137 Cs. Uptake of Cs by these species ranged from 44 to 235 nmol Cs g − 1d.w. h − 1. Efflux studies indicate that more than 40% of the Cs taken up is bound within the hyphae. We estimate that the fungal component of the soil could immobilize the total radiocaesium fallout received in upland grasslands following the Chernobyl accident

  13. Coefficients of distribution and accumulation of K, Rb, Cs and 137Cs in the intensive poultry breeding cycle

    International Nuclear Information System (INIS)

    Djuric, G.; Ajdacic, N.; Institut za Nuklearne Nauke Boris Kidric, Belgrade

    1984-01-01

    The concentration of K,Rb,Cs and the activity level of Cs-137 in samples from the intensive poultry breeding cycle (feed, meat, eggs), under the condition of chronic alimentary contamination is presented. Concentrations of Cs and Rb were determined by non-destructive neutron activation analysis, concentration of K by atomic absorption flame photometry and activity of Cs-137 by gamma spectrometric analysis. On the basis of these results, coefficients of distribution and accumulation were calculated. The distribution coefficients of the analysed stable isotopes in meat have values close to 1, whereas for various parts of egg these coefficients vary between 0.5 and 1.5. Significant differences in Cs-137 distribution in various parts of egg were established. The values of accumulation coefficients indicate that all analysed elements selectively accumulate in the meat of young birds (broilers), and Cs-137 accumulates in the egg white as well. (orig.)

  14. Phase Transitions in CsSnCl3 and CsPbBr3 An NMR and NQR Study

    Science.gov (United States)

    Sharma, Surendra; Weiden, Norbert; Weiss, Alarich

    1991-04-01

    The phase transitions in CsSnCl3 and CsPbBr3 have been studied by X-ray powder diffraction, by 81Br-NQR and by 'H-, 119Sn-, and 113Cs-NMR. At room temperature in air CsSnCl3 forms a hydrate which can be dehydrated to the monoclinic phase II of CsSnCl3. The high temperature phase I has the Perovskite structure, as the X-ray and NMR experiments show. The three phases of CsPbBr3, known from literature, have been corroborated. The results are discussed in the framework of the group ABX3, A = alkalimetal ion, B = IV main group ion, and X = Halogen ion

  15. Exploring Polaronic, Excitonic Structures and Luminescence in Cs4PbBr6/CsPbBr3.

    Science.gov (United States)

    Kang, Byungkyun; Biswas, Koushik

    2018-02-15

    Among the important family of halide perovskites, one particular case of all-inorganic, 0-D Cs 4 PbBr 6 and 3-D CsPbBr 3 -based nanostructures and thin films is witnessing intense activity due to ultrafast luminescence with high quantum yield. To understand their emissive behavior, we use hybrid density functional calculations to first compare the ground-state electronic structure of the two prospective compounds. The dispersive band edges of CsPbBr 3 do not support self-trapped carriers, which agrees with reports of weak exciton binding energy and high photocurrent. The larger gap 0-D material Cs 4 PbBr 6 , however, reveals polaronic and excitonic features. We show that those lattice-coupled carriers are likely responsible for observed ultraviolet emission around ∼375 nm, reported in bulk Cs 4 PbBr 6 and Cs 4 PbBr 6 /CsPbBr 3 composites. Ionization potential calculations and estimates of type-I band alignment support the notion of quantum confinement leading to fast, green emission from CsPbBr 3 nanostructures embedded in Cs 4 PbBr 6 .

  16. La participación de las comunidades indígenas migrantes en el marco del Consejo Consultivo Indígena en León, Guanajuato

    Directory of Open Access Journals (Sweden)

    Yolanda de León-de Santiago

    2016-01-01

    Full Text Available En México, a lo largo de la historia, se ha ignorado el aporte de los pueblos indígenas y se ha omitido su punto de vista para la toma de decisiones en asuntos que los atañe, no fue sino hasta el levantamiento Zapatista que la cuestión indígena despertó interés. En el estado de Guanajuato, la población indígena es menor en comparación con otros estados y, sin embargo, está conformada por un mosaico de culturas, algunas nativas y otras migrantes. A pesar de esto, la presencia de población indígena fue reconocida hasta el año 2004. El objetivo de este artículo es primeramente visibilizar la presencia de comunidades de indígenas migrantes en la ciu - dad de León, Guanajuato, y en segundo lugar, hacer un análisis de su participación ciudadana en el marco del Consejo Consultivo Indígena, como un mecanismo institucionalizado de atención para este segmento de la población.

  17. Revueltas indígenas en el Perú tardocolonial

    OpenAIRE

    Sala i Vila, Núria

    1989-01-01

    La hipótesis inicial que encauzó la investigación fue la búsqueda de un nexo entre la Gran Rebelión de 1780-81, aquélla que estalló en el Cuzco en 1814 y las luchas independentistas iniciadas a partir de 1820 con la llegada de las tropas del general San Martín al virreinato peruano. Consideré que el movimiento de Túpac Amaru no fue el final de un ciclo o etapa de lucha propiamente indígena y en consecuencia traté de demostrar la persistencia de respuestas violentas indígenas en la sociedad co...

  18. Criatividade e inovação empresarial nas indústrias criativas

    OpenAIRE

    Sousa, Fernando; Nunes, Florbela; Monteiro, Ileana Pardal

    2015-01-01

    O presente artigo visa demonstrar que a relação de influência entre a atitude dos empresários face à criatividade e as práticas de inovação empresarial é mais forte no setor que envolve as indústrias criativas. Para o efeito foi inquirida uma amostra constituída por 454 empresários, em que 94 pertenciam às indústrias criativas, responsáveis por microempresas e PME portuguesas, através de um inventário de práticas empresariais inovadoras, elaborado a partir do formulário de candidatura à rede ...

  19. El anciano en las comunidades indígenas Páez y Zenú

    Directory of Open Access Journals (Sweden)

    Canencio Benavides Doris

    1996-06-01

    Full Text Available

    Son muchos los pueblos indígenas existentes en Colombia, entre ellos encontramos a los zenues y a los paeces. Los primeros se encuentran localizados al noreste de Córdoba; los paeces están ubicados en diferentes lugares del departamento del Cauca. En estas dos comunidades indígenas existen algunas diferencias dadas no solo por su ubicación geográfica, sino por aspectos organizacionales e históricos. Pero no se puede desconocer las similitudes que existen entre ellas como es el concepto del anciano dentro de la comunidad, su rol en la familia y el respeto que se le tiene como transmisor de valores y creencias.

     

  20. Prevalencia de diabetes mellitus e hiperlipidemias en indígenas otomíes

    OpenAIRE

    Alvarado-Osuna Claudia; Milian-Suazo Feliciano; Valles-Sánchez Victoria

    2001-01-01

    Objetivo. Determinar prevalencia y factores de riesgo de la diabetes mellitus (DM) e hiperlipidemias en un grupo de indígenas otomíes de Querétaro. Material y métodos. Entre 1996 y 1997, en muestreo de conveniencia se trabajó con 91 indígenas, de 15 a 77 años de edad, de las comunidades de Yosphí y El Rincón, del estado de Querétaro, México. Se tomaron muestras sanguíneas en ayuno y se determinó la concentración de glucosa, colesterol y triglicéridos. Se realizó análisis estadístico para comp...

  1. Narrativas Maxakali: possibilidades para o ensino de cultura e história indígena

    Directory of Open Access Journals (Sweden)

    Pablo Luiz de Oliveira Lima

    2013-09-01

    Full Text Available O povo Maxakali enfrentou a colonização e resiste, até os dias de hoje, com a força de seus hábitos culturais. As narrativas indígenas são fontes ricas para o ensino de história, desde que trabalhadas adequadamente, respeitando a alteridade cultural, os diferentes conjuntos de valores, crenças e organização social dos povos indígenas. Este trabalho propõe um diálogo entre narrativas indígenas e teorias sobre a narrativa histórica. A presença de narrativas indígenas no ensino de História está relacionada às mudanças que ocorreram no ensino dessa disciplina a partir da década de 1980, com a instituição dos direitos indígenas constitucionais, novos parâmetros curriculares e uma legislação que tornou obrigatório o ensino de história e cultura indígenas na educação básica brasileira (Lei nº 11.645/08. A utilização de narrativas indígenas no ensino de história, além de levar os alunos a compreenderem melhor as culturas indígenas, pode leválos a percepções ampliadas sobre a sua própria cultura.

  2. Indígenas en la universidad brasileña: sueño, esperanza o pesadilla?

    Directory of Open Access Journals (Sweden)

    Josinaldo da SILVA

    2012-03-01

    Full Text Available Pensar en la presencia de indígenas en la enseñanza superior era, hasta hace poco tiempo, una utopía. Este artículo enfoca discusiones sobre la efectivación de las políticas de acciones afirmativas para indígenas en las universidades brasileñas, que son recientes no porque la población indígena no se haya manifestado, sino porque el país no tenía abertura para tal diálogo. La diversidade en la universidad ha contribuído para el diálogo y el entendimiento. Se narra que, para competir para los cupos, los candidatos indígenas necesitan comprobar su indianidad y firmar un término de compromiso con la comunidad indígena que los nomina. Ese proceso de identificación es complicado porque, ocasionalmente, debido a intercambio de favores, parientes de hacendados y políticos --ya privilegiados socialmente-- acaban utilizando los cupos. Los indígenas siempre estudiaron en escuelas públicas en situación precaria. Los autores relatan los problemas relacionados con la llegada a Brasilia y las dificultades generadas por la distancia de las aldeas. También se narran las experiencias de la convivencia en el ambiente universitario de la Universidad de Brasília, en dónde en algunos casos, la clase ignora y segrega a los estudiantes indígenas, y en otros, los docentes los ignoran o hasta se manifiestan contrarios a su presencia. Se cuestiona el papel de la Fundación Nacional del Indio (FUNAI. Aun frente a estas dificultades, los primeros indígenas comienzan a graduarse. Con orgullo y manteniendo vivas sus tradiciones, se espera el replanteamiento de la medicina occidental como complementaria a la medicina tradicional.

  3. Çocuk Diş Hekimliğinde Oral ve İntranazal Yollarla Orta Dereceli Sedasyon

    NARCIS (Netherlands)

    Özen, B.

    2013-01-01

    Çocuk Diş Hekimliğinde Oral ve İntranazal Yollarla Orta Dereceli Sedasyon Çocuk diş hekimliğinde korkulu, kaygılı ve uyumsuz hastaların tedavileri, midazolam gibi spesifik ilaçların oral veya intranazal yolla kullanılmıyla, sedasyon yönergelerine uyan hekimler tarafından orta dereceli sedasyon

  4. Web 2.0 trænger ind i skolen

    DEFF Research Database (Denmark)

    Mehlsen, Camilla

    2010-01-01

    Det er ikke bare et stigende antal cyber kids, der presser på for at få web 2.0 ind i skolen. Flere uddannelsespolitiske tekster sætter nu fokus på, at elevernes it- og mediekompetencer skal være "i et web 2.0-perspektiv". Hvad skal der til, for at vi får en skole 2.0? Asterisk aflægger rapport fra...

  5. Innovations issues de la base en Chine et en Inde | CRDI - Centre ...

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

    Les innovations issues de la base sont celles qui émergent des systèmes de connaissances traditionnels et officieux d'un lieu, qu'on intègre ou non un savoir officiel. En Chine et en Inde, on n'a pas encore pleinement compris et mis à profit ce type d'innovation. Cette subvention financera une étude approfondie de ce type ...

  6. Know Violence in Childhood – Inde : Défense des droits ...

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

    Know Violence in Childhood – Inde : Défense des droits, communication et mobilisation des médias. Know Violence in Childhood (KVIC) est une initiative mondiale d'apprentissage et de défense des intérêts visant à stimuler la coordination de l'action pour mettre fin à la violence faite aux enfants. Elle met à profit ...

  7. Créer des emplois pour combler l'absence de milieu en Inde | CRDI ...

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

    21 juin 2016 ... Les chercheurs ont aussi observé que l'expansion de l'emploi dans des secteurs autres que l'agriculture était étroitement liée à l'expansion de l'éducation. L'Inde doit s'attacher à offrir une meilleure instruction dans ses villages, afin que les travailleurs éventuels puissent acquérir les compétences de base ...

  8. L'intégration des plantes médicinales en Inde | IDRC - International ...

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

    3 févr. 2011 ... Un nouveau programme lancé par le gouvernement de l'Inde pour intégrer les plantes médicinales aux pratiques médicales traditionnelles et aux moyens de subsistance habituels pourrait être une source de revenus pour les villageois qui en font la cueillette et rendre leur utilisation plus sécuritaire.

  9. Skill Transfer and Virtual Training for IND Response Decision-Making: Project Summary and Next Steps

    Science.gov (United States)

    2016-04-12

    Lincoln Laboratory MASSACHUSETTS INSTITUTE OF TECHNOLOGY LEXINGTON, MASSACHUSETTS Technical Report 1209 Skill Transfer and Virtual ...specifically authorized by the U.S. Government may violate any copyrights that exist in this work. Skill Transfer and Virtual Training for IND Response...lns:ull of lmme<lla:e 0 evacua!lon). but many aspects are the same (such as !’laVIng fresh water . knowing evacua:Jon routn. and tlavtng a

  10. Protocole d'entente entre le gouvernement de l'Inde et le CRDI ...

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

    22 févr. 2018 ... Ce protocole d'entente réaffirme un engagement commun envers les données probantes et l'innovation en Inde en vue de favoriser le progrès social et ... Des chercheurs appuyés par le CRDI parlent de leurs expériences au Comité sur les ONG lors du forum de la Commission de la condition de la femme.

  11. Inde | Page 6 | CRDI - Centre de recherches pour le développement ...

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

    Les économistes et les spécialistes en sciences sociales ont vigoureusement plaidé en faveur d'une réduction des dépenses en subventions et de la création d'un revenu de base pour les populations de l'Inde à la Conférence nationale sur le revenu de base universel appuyée par le CRDI. Read more about Les ...

  12. Innovations issues de la base en Chine et en Inde | IDRC ...

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

    Les innovations issues de la base sont celles qui émergent des systèmes de connaissances traditionnels et officieux d'un lieu, qu'on intègre ou non un savoir officiel. En Chine et en Inde, on n'a pas encore pleinement compris et mis à profit ce type d'innovation. Cette subvention financera une étude approfondie de ce type ...

  13. Le nouveau visage de la philanthropie en Inde | CRDI - Centre de ...

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

    Connectez-vous avec Nirojan sur LinkedIn. La philanthropie est en hausse en Inde et le phénomène devrait continuer à croître. La nouvelle richesse transforme également le visage des dons de charité et retient l'attention du public. Par conséquent, le nombre de conseillers en philanthropie augmente aussi. La relation ...

  14. Distribution and behavior of {sup 137}Cs in undisturbed soil

    Energy Technology Data Exchange (ETDEWEB)

    Satta, Naoya [Kyoto Univ., Kumatori, Osaka (Japan). Research Reactor Inst.

    1996-04-01

    The depth distribution of {sup 137}Cs in soils which has not been artificially disturbed for 100 years was compared to fallout history. The model of {sup 137}Cs distribution rate was established to estimate fallout history from soil samples. (J.P.N.)

  15. Relative volatility of dilute solutions of Rb-Cs system

    International Nuclear Information System (INIS)

    Gromov, P.B.; Izotov, V.P.; Nisel'son, L.A.

    1984-01-01

    Relative volatility of diluted solutions Rb-Cs in the temperature range 650-820 K and pressures 13-200 gPa has been studied. The system Rb-Cs in the range of diluted solutions obeys the Henry law. It is shown, that liquid-vapour equilibrium in diluted solutions of cesium in rubidium is characterized by negative deviation from perfection

  16. Direct and indirect contamination of tree crops with Cs-134

    International Nuclear Information System (INIS)

    Skarlou, V.; Nobeli, C.; Anoussis, J.; Arapis, G.; Haidouti, C.

    1996-01-01

    A long term glasshouse pot experiment was established in 1994 to study the transfer factors of Cs-134 from soil to olive and orange trees for which no relevant data are available. A calcareous-heavy textured and an acid-light textured soil were used in this experiment. Results from two year's experimentation are considered in this study. The ability of the studied plant species for Cs-134 root uptake seems to be significantly influenced by soil type. The contamination of both tree species grown on calcareous and heavy soil was very low and did not change much with the time. On the contrary, trees grown on acid and light soil showed much higher Cs-134 concentration (up to 34 times for orange and 23 for olive trees) which significantly increased with the time. Both olive and orange trees showed a similar behaviour in the studied soils. Effort was also made to study the long term consequences of the direct contamination in a field experiment where an olive tree was contaminated by dry deposition with Cs-134. Six months after contamination 5 % of the Cs-134 deposited on the leaves was measured in the first olive production. However, very small quantities (= 0.5 %) of the olive Cs-134 was detected in the unprocessed olive oil. The following year 15 % of the Cs-134 remained in the leaves while extremely low quantities of Cs-134 were detected in either olives or olive oil. (author)

  17. Quantitative Cs-137 distributions from airborne gamma ray data

    International Nuclear Information System (INIS)

    Oberlercher, G.; Seiberl, W.

    1997-01-01

    The Chernobyl reactor accident caused in Austria Cs-137 activities up to 180 kBq/m 2 . The following paper explains how airborne NaJ-spectroscopy, originally designed for geological surveys, was used as an accurate method to obtain the ground activity of Cs-137 in certain regions of Austria. To retrieve the net count rate in a Cs-137 window it is necessary to subtract all background contributions from the peak, including the Compton continuum and the contribution of overlapping peaks. Therefore the measurement of Cs-137 with a NaJ detector system must take into account radioactive elements with gamma-ray lines near the peak energy of Cs-137 at 662 keV. In regions with higher concentrations of the natural radioactive elements uranium and thorium a peak near 600 keV is found, containing the 609 keV line of Bi-214 and the 585 keV line of TI-208. Additionally a Cs-134 line is located at 604 keV. Because of the poor energy resolution of NaJ detectors it is not possible to find a clear separation between these peaks and the Cs-137 peak. The following section describes the method that was used to obtain accurate quantified Cs-137 activity values. (author)

  18. Antibodies derived from an enterotoxigenic Escherichia coli (ETEC) adhesin tip MEFA (multiepitope fusion antigen) against adherence of nine ETEC adhesins: CFA/I, CS1, CS2, CS3, CS4, CS5, CS6, CS21 and EtpA.

    Science.gov (United States)

    Nandre, Rahul M; Ruan, Xiaosai; Duan, Qiangde; Sack, David A; Zhang, Weiping

    2016-06-30

    Diarrhea continues to be a leading cause of death in children younger than 5 years in developing countries. Enterotoxigenic Escherichia coli (ETEC) is a leading bacterial cause of children's diarrhea and travelers' diarrhea. ETEC bacteria initiate diarrheal disease by attaching to host receptors at epithelial cells and colonizing in small intestine. Therefore, preventing ETEC attachment has been considered the first line of defense against ETEC diarrhea. However, developing vaccines effectively against ETEC bacterial attachment encounters challenge because ETEC strains produce over 23 immunologically heterogeneous adhesins. In this study, we applied MEFA (multiepitope fusion antigen) approach to integrate epitopes from adhesin tips or adhesive subunits of CFA/I, CS1, CS2, CS3, CS4, CS5, CS6, CS21 and EtpA adhesins and to construct an adhesin tip MEFA peptide. We then examined immunogenicity of this tip MEFA in mouse immunization, and assessed potential application of this tip MEFA for ETEC vaccine development. Data showed that mice intraperitoneally immunized with this adhesin tip MEFA developed IgG antibody responses to all nine ETEC adhesins. Moreover, ETEC and E. coli bacteria expressing these nine adhesins, after incubation with serum of the immunized mice, exhibited significant reduction in attachment to Caco-2 cells. These results indicated that anti-adhesin antibodies induced by this adhesin tip MEFA blocked adherence of the most important ETEC adhesins, suggesting this multivalent tip MEFA may be useful for developing a broadly protective anti-adhesin vaccine against ETEC diarrhea. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. Is 137Cs Dating Becoming Obsolete in North America?

    Science.gov (United States)

    Drexler, J. Z.; Fuller, C.; Salas, A.

    2016-12-01

    Dating of wetland sediments and peat is routinely carried out using 137Cs and 210Pb analysis. Unlike 210Pb, 137Cs is an anthropogenic radionuclide with a history of fallout from nuclear weapons testing. 137Cs is used as a single time marker; its peak is coincident with the height of atmospheric nuclear testing in 1963/4. During its use in the 1970s-90s, 137Cs peaks were usually highly distinct in wetland sediments (e.g., see 137Cs peaks from Louisiana marshes in Feijtel et al., 1988). This enabled its use as a check for dates assigned to a profile by 210Pb and other methods. However, recently, the efficacy of 137Cs dating in North America has deteriorated. In this presentation, we will provide specific examples of 137Cs as well as 210Pb dating in wetland sediments/peats we collected between 2005 and 2015 in Maine, California, Virginia, North Carolina, South Carolina, and Washington. Two main reasons exist for this decline. First, 137Cs activities in our recent cores are 30-40 % of the original activities in 1963/4 due to decay of the original 137Cs in situ (half-life = 30.17 years) and no major new sources. This manifests in lower signal to noise ratio, with some peaks barely recognizable above the noise. Second, 137Cs peaks are much less distinct due to 137Cs migration through time independent of substrate (or sediment) particles. Migration of peaks has resulted in estimated accretion rates being systematically lower or higher than those derived from 210Pb dating. These issues with 137Cs dating have important implications because 137Cs is used with 210Pb dating or even alone to determine rates of recent wetland carbon accumulation. Such rates are required to enter wetland restoration projects into carbon markets and to document IPCC mandated reductions in carbon pollution. Our analysis shows that, although dating by 137Cs alone has always been highly tenuous, now it is especially contraindicated and should be disallowed for the purposes of carbon accounting.

  20. Artes indígenas, patrimônio cultural e mercado

    Directory of Open Access Journals (Sweden)

    Ilana Seltzer Goldstein

    2016-11-01

    Full Text Available O sistema das artes vem se tornando cada vez mais internacional, com a formação de redes e fluxos. Entretanto, as criações populares e indígenas costumam ser ignoradas ou relegadas a segundo plano. A dicotomia arte versus artesanato é uma das estratégias de hierarquização desse sistema. O presente artigo aborda duas maneiras pelas quais as formas expressivas dos povos indígenas vêm sendo inseridas na sociedade envolvente: sua paulatina circulação no sistema das artes e seu recente reconhecimento como patrimônio cultural. A maioria dos dados é trazida da Austrália, país em que, a partir dos anos 1970, formou-se uma rede impressionante de fomento às artes indígenas, compreendendo premiações, alas especiais em museus, cooperativas de artistas e galerias comerciais nas grandes cidades. Nas páginas finais são abordados também exemplos brasileiros.

  1. Infraestructura y calidad educativa entre los pueblos indígenas originarios sonorenses

    Directory of Open Access Journals (Sweden)

    José Ángel Vera-Noriega

    2016-01-01

    Full Text Available El objetivo del artículo se centra en el análisis de la percepción entre los pueblos indígenas originarios de Sonora sobre la infraestructura y calidad educativa para la formación de sus descendientes. Participaron 1.329 personas con un promedio de 50 años de edad y desviación estándar de 16 años, 928 mujeres y 401 hombres. Los resultados indican la prevalencia de una percepción de falta de infraestructura para mejorar la calidad educativa de los niños y jóvenes indígenas. Además, se encontraron diferencias entre los siete pueblos indígenas con respecto a la problemática educativa. Los grupos que mejor están ubicados, en cuanto a acceso educativo, son aquellos que exhiben mayor desplazamiento de su lengua materna.

  2. Training first responders on Radiological Dispersal Devices (RDDs) and Improvised Nuclear Devices (INDs) events

    International Nuclear Information System (INIS)

    Groves, Ken L.

    2008-01-01

    Full text: This paper will present an overview of the current training the author is presenting to First Responders (fire-fighters, emergency medical technicians, law enforcement and others) who may encounter either a Radiological Dispersal Device (RDD or Dirty Bomb) or an Improvised Nuclear Device (IND) as a part of their Emergency Response activities. The emphasis of the training is putting the radiological/nuclear material in perspective as compared with other Weapons of Mass Destruction (WMD) materials such as chemical and/or biological weapon agents. A goal of the training is to help this First Responder Community understand that under almost all conditions, they can perform their primary mission of 'putting out fires', rescuing and treating injured persons, and chasing 'bad guys' even in the presence of relatively large amount of radiological/nuclear contamination. The rare cases of high activity unshielded sources will be reviewed and explained. Current International guidance on dose 'limits' will be discussed. A discussion of the use of Time, Distance and Shielding as well as appropriate Personal Protective Clothing and how it will provide the needed protection while immediate actions take place early in an RDD/IND event, will take place. The use of appropriate radiation detection instrumentation, documented Standard Operating Procedures along with realistic training, drills and exercises are the key to a successful response to an RDD/IND event for this community of critical emergency responders. (author)

  3. Percepciones de comportamientos parentales de jóvenes indígenas mexicanos

    Directory of Open Access Journals (Sweden)

    Rosario Esteinou Madrid

    2013-01-01

    Full Text Available El trabajo presenta algunos resultados sobre algunas de las ten- dencias que se muestran hoy en día en torno a los comportamientos paren- tales en el proceso de socialización y de educación de sus hijos adolescentes. La información que se expone procede de una investigación que se realizó sobre la educación parental y la competencia social de los jóvenes en tres estados con alta concentración de población indígena. Para tal efecto, se levantó una encuesta en una muestra de 450 adolescentes indígenas de los estados de Chiapas, Yucatán y Oaxaca. En particular se analizan, a partir de las percepciones de los adolescentes, algunos comportamientos de padres y madres referentes a dos dimensiones: una, relacionada con el apoyo, la pro- tección y la promoción de comportamientos prosociales en los adolescentes; y otra referida a distintas formas en que se ejerce el control (monitoreo, permisividad, rechazo, inducción de culpa, y punitividad. De acuerdo a dichas percepciones, el principal resultado obtenido establece que los com- portamientos de los padres indígenas se asemeja al estilo autoritario.

  4. La multiculturalidad de la ciudad de México y los derechos indígenas

    Directory of Open Access Journals (Sweden)

    Cristina Oehmichen

    2003-01-01

    Full Text Available A partir de 1970 y, sobre todo, de 1990 en adelante, los indígenas de México han ido incorporándose a los flujos migratorios tanto internos como internacionales. Las comunidades se han extendido mucho más allá de los límites de pueblos específicos, pues sus miembros han emigrado y se han establecido en diversos puntos geográficos. A través de las redes que se extienden en el espacio nacional e internacional, los indígenas de México han tendido a reconstituir el vínculo comunitario y a dinamizar las relaciones sociales que los mantienen unidos en los lugares de destino. En este artículo analizo los procesos de construcción de las fronteras étnicas en la ciudad de México, con lo cual busco descubrir una lógica subyacente en la discriminación y lucha por los derechos a la ciudadanía de los indígenas radicados en la capital.

  5. Entre la justicia indígena y la ordinaria: dilema aún por resolver

    Directory of Open Access Journals (Sweden)

    Filipo Ernesto Burgos Guzmán

    2008-12-01

    Full Text Available La Constitución de 1991 propició un cambio en las relaciones con las minorías étnicas en general y en aras de su protección existe el reconocimiento de derechos colectivos y fundamentales de grupo. Dentro de ellos, uno trascendental: la jurisdicción indígena. Hoy, 17 años después de la entrada en vigencia de la nueva Constitución y de haberse reconocido a los indígenas su propias leyes y jueces, su sentido y razón de ser se ha ido aclarando y ampliando por la jurisprudencia constitucional, al abrigo del tratado internacional 169 de 1989 de la oit y la decisiones de la Corte Interamericana de Justicia. No obstante, cuando revisamos los conflictos de competencias suscitados, encontramos que cuando se resuelve u otorga competencia a la justicia ordinaria o indígena, en casos concretos llevados ante el Consejo Superior de la Judicatura, la visión de este tribunal no es acorde con el avance constitucional y en ocasiones parecería estar bajo el amparo de la Constitución monocultural de 1886.

  6. Entre la justicia indígena y la ordinaria: dilema aún por resolver

    Directory of Open Access Journals (Sweden)

    Filipo Ernesto Burgos Guzmán

    2008-01-01

    Full Text Available La Constitución de 1991 propició un cambio en las relaciones con las minorías étnicas en general y en aras de su protección existe el reconocimiento de derechos colectivos y fundamentales de grupo. Dentro de ellos, uno trascendental: la jurisdicción indígena. Hoy, 17 años después de la entrada en vigencia de la nueva Constitución y de haberse reconocido a los indígenas su propias leyes y jueces, su sentido y razón de ser se ha ido aclarando y ampliando por la jurisprudencia constitucional, al abrigo del tratado internacional 169 de 1989 de la oit y la decisiones de la Corte Interamericana de Justicia. No obstante, cuando revisamos los conflictos de competencias suscitados, encontramos que cuando se resuelve u otorga competencia a la justicia ordinaria o indígena, en casos concretos llevados ante el Consejo Superior de la Judicatura, la visión de este tribunal no es acorde con el avance constitucional y en ocasiones parecería estar bajo el amparo de la Constitución monocultural de 1886.

  7. Tendencias de Educación Indígena en Latinoamérica.

    Directory of Open Access Journals (Sweden)

    Teresa Durán Pérez

    Full Text Available En esta ponencia se revisan Ias principales corrientes de pensamiento que en los últimos veinte años han ido surgiendo en torna a la educación que, al interior de las sociedades nacionales. deben recibir y protagonizar Ias generaciones jóvenes de los pueblos indígenas de América. Estas corrientes de pensamiento han sido expuestas por estudiosos, mayormente de la cultura y lenguas vernáculas, vinculados de distinto modo al sistema regular de educación, y por dirigentes de organizaciones indígenas.  Explicita o implícitamente estas corrientes incluyen concepciones acerca de los pueblos indígenas: definiciones de sus propias  participaciones  en   el  proceso;  justificaciones   de  las proposiciones  que  exponen; dificultades encontradas en el proceso de aplicar los programas propuestos: evoluciones y proyecciones que este tipo  de educación étnicamente diferenciada supone.

  8. Determination of {sup 135}Cs by accelerator mass spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    MacDonald, C.M.; Charles, C.R.J. [Andre. E. Lalonde AMS Laboratory, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Department of Earth Sciences, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Zhao, X.-L.; Kieser, W.E. [Andre. E. Lalonde AMS Laboratory, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Cornett, R.J. [Andre. E. Lalonde AMS Laboratory, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Department of Earth Sciences, University of Ottawa, 150 Louis Pasteur, Ottawa, ON K1N 6N5 (Canada); Litherland, A.E. [IsoTrace Laboratory, University of Toronto, 60 St. George St., Toronto, ON M5S 1A7 (Canada)

    2015-10-15

    The ratio of anthropogenic {sup 135}Cs and {sup 137}Cs isotopes is characteristic of a uranium fission source. This research evaluates the technique of isotope dilution (yield tracing) for the purpose of quantifying {sup 135}Cs by accelerator mass spectrometry with on-line isobar separation. Interferences from Ba, Zn{sub 2}, and isotopes of equal mass to charge ratios were successfully suppressed. However, some sample crosstalk from source contamination remains. The transmission and di-fluoride ionization efficiencies of Cs isotopes were found to be 8 × 10{sup −3} and 1.7 × 10{sup −7} respectively. This quantification of {sup 135}Cs using yield tracing by accelerator mass spectrometry shows promise for future environmental sample analysis once the issues of sample crosstalk and low efficiency can be resolved.

  9. Recovery of Cs from high level radioactive waste

    International Nuclear Information System (INIS)

    Kumar, Amar; Kaushik, C.P.; Raj, K.; Varshney, Lalit

    2008-01-01

    Separation of Cs + from HLW restricts the personal radiation exposure during the vitrification and prevents thermal deformation of conditioned waste matrix during storage because of the high calorific power of 134 Cs (13.18 W/g) and 137 Cs (0.417 W/g) which would markedly reduce the storage cost. Separation will also reduce its volatility during vitrification and extent of migration from the vitrified mass in repository. In addition 137 Cs has enormous applications as radiation sources in food preservation, sterilization of medical products, brachy therapy, blood irradiation, hygienization of sewage sludge etc. The use of 137 Cs (T 1/2 = 30 years) in place of 60 Co (T 1/2 = 5.2 years) will also reduce the shielding requirement and frequency of source replenishment which will ease the handling/transportation of radioactive source

  10. Transformation of Sintered CsPbBr3 Nanocrystals to Cubic CsPbI3 and Gradient CsPbBrxI3-x through Halide Exchange.

    Science.gov (United States)

    Hoffman, Jacob B; Schleper, A Lennart; Kamat, Prashant V

    2016-07-13

    All-inorganic cesium lead halide (CsPbX3, X = Br(-), I(-)) perovskites could potentially provide comparable photovoltaic performance with enhanced stability compared to organic-inorganic lead halide species. However, small-bandgap cubic CsPbI3 has been difficult to study due to challenges forming CsPbI3 in the cubic phase. Here, a low-temperature procedure to form cubic CsPbI3 has been developed through a halide exchange reaction using films of sintered CsPbBr3 nanocrystals. The reaction was found to be strongly dependent upon temperature, featuring an Arrhenius relationship. Additionally, film thickness played a significant role in determining internal film structure at intermediate reaction times. Thin films (50 nm) showed only a small distribution of CsPbBrxI3-x species, while thicker films (350 nm) exhibited much broader distributions. Furthermore, internal film structure was ordered, featuring a compositional gradient within film. Transient absorption spectroscopy showed the influence of halide exchange on the excited state of the material. In thicker films, charge carriers were rapidly transferred to iodide-rich regions near the film surface within the first several picoseconds after excitation. This ultrafast vectorial charge-transfer process illustrates the potential of utilizing compositional gradients to direct charge flow in perovskite-based photovoltaics.

  11. Soil 137Cs background values in monsoon region of china

    International Nuclear Information System (INIS)

    Zhang Mingli; Yang Hao; Wang Xiaolei; Wang Yihong; Xu Congan; Yang Jiudong; Rong Jing

    2009-01-01

    Land degradation,, which is resulted from the soil erosion, is one of the major environmental problems. It severely affects the food supplies, environmental safety and the sustainable development in China. Some areas in the monsoon region are suffering from the acute soil erosion. To find out the degree of soil erosion, the proven technique of 137 Cs tracer is definitely one of the best methods, and the key is to ascertain the accuracy of soil 137 Cs background value. The distributions of 137 Cs were explored in soil profiles by detecting the 137 Cs of soil cores from the Yimeng mountain area in Shandong Province, hills in the southern area of Jiangsu Province and Dianchi catchment in Yunnan Province, respectively. We found that the depth of 137 Cs distribution is not the same in the soils of various areas. But the 137 Cs activity shows an exponential distribution in the uncultivated soil and demonstrates a strong correlation with the soil depth, while the 137 Cs activity proves uniform in the soil plowing layer of the cultivated land. The study shows the 137 Cs background values of three areas: 1737.1 Bq/m 2 in Yimeng mountain area, 1847.6 Bq/m 2 in southern area of hills in Jiangsu, 918.0 Bq/m 2 in Dianchi catchment. The certainty of 137 Cs background value can technically support the use of 137 Cs technique to study the spatial pattern of soil erosion, deposition and the land degradation, which provides the support for the sustainable utilization of soil resource, the assessment of economical benefit and loss and the evaluation of water and soil conservation measures. (authors)

  12. Rapid determination of {sup 135}Cs and precise {sup 135}Cs/{sup 137}Cs atomic ratio in environmental samples by single-column chromatography coupled to triple-quadrupole inductively coupled plasma-mass spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Yang, Guosheng [Department of Radiation Chemistry, Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564 (Japan); Division of Nuclear Technology and Applications, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); Beijing Engineering Research Center of Radiographic Techniques and Equipment, Beijing 100049 (China); Tazoe, Hirofumi [Department of Radiation Chemistry, Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564 (Japan); Yamada, Masatoshi, E-mail: myamada@hirosaki-u.ac.jp [Department of Radiation Chemistry, Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564 (Japan)

    2016-02-18

    For source identification, measurement of {sup 135}Cs/{sup 137}Cs atomic ratio not only provides information apart from the detection of {sup 134}Cs and {sup 137}Cs, but it can also overcome the application limit that measurement of the {sup 134}Cs/{sup 137}Cs ratio has due to the short half-life of {sup 134}Cs (2.06 y). With the recent advancement of ICP-MS, it is necessary to improve the corresponding separation method for rapid and precise {sup 135}Cs/{sup 137}Cs atomic ratio analysis. A novel separation and purification technique was developed for the new generation of triple-quadrupole inductively coupled plasma-mass spectrometry (ICP-MS/MS). The simple chemical separation, incorporating ammonium molybdophosphate selective adsorption of Cs and subsequent single cation-exchange chromatography, removes the majority of isobaric and polyatomic interference elements. Subsequently, the ICP-MS/MS removes residual interference elements and eliminates the peak tailing effect of stable {sup 133}Cs, at m/z 134, 135, and 137. The developed analytical method was successfully applied to measure {sup 135}Cs/{sup 137}Cs atomic ratios and {sup 135}Cs activities in environmental samples (soil and sediment) for radiocesium source identification. - Highlights: • A simple {sup 135}Cs/{sup 137}Cs analytical method was developed. • The separation procedure was based on AMP adsorption and one column chromatography. • {sup 135}Cs/{sup 137}Cs was measured by ICP-MS/MS. • Decontamination factors for Ba, Mo, Sb, and Sn were improved. • {sup 135}Cs/{sup 137}Cs atomic ratios of 0.341–0.351 were found in Japanese soil samples.

  13. Bacterial CS2 Hydrolases from Acidithiobacillus thiooxidans Strains Are Homologous to the Archaeal Catenane CS2 Hydrolase

    NARCIS (Netherlands)

    Smeulders, M.J.; Pol, A. van der; Venselaar, H.; Barends, T.R.; Hermans, J.; Jetten, M.S.M.; Camp, H.J.M. op den

    2013-01-01

    Carbon disulfide (CS2) and carbonyl sulfide (COS) are important in the global sulfur cycle, and CS2 is used as a solvent in the viscose industry. These compounds can be converted by sulfur-oxidizing bacteria, such as Acidithiobacillus thiooxidans species, to carbon dioxide (CO2) and hydrogen sulfide

  14. Radioecological studies of 137Cs in limnological ecosystems. Biochemical states of 137Cs accumulated in killifish (Medaka, Oryzias latipes) meat

    International Nuclear Information System (INIS)

    Miyake, Sadaaki; Motegi, Misako; Oosawa, Takashi; Nakazawa, Kiyoaki; Izumo, Yoshiro; Nakamura, Fumio.

    1997-01-01

    Biochemical states of 137 Cs accumulated in killifish's (Medaka, Oryzias latipes) meat were investigated in order to elucidate the accumulation mechanism of the radionuclide in goldfish, Carassius auratus auratus, examined in our preceding report. Most of 137 Cs radioactivity in the killifish's raw meat accumulated this radionuclide in the radioactive freshwater, were found in the non-protein nitrogenous compound (NPNC) fraction (>92%), also in the killifish's control raw meat mixed with 137 Cs, the difference between both meat samples was not clear. As the results of gel filtration profiles on Sephadex G-25 for the NPNC fraction of these meats, each only one radioactive peak was shown, also similar to 137 CsCl solution. Moreover, these peaks appeared at the same position. On the other hand, the peak positions absorbed at OD 280nm in the samples were different from those of each radioactive peak. It was so suggested that 137 Cs accumulated in the killifish's meat was shown not to be binding to protein's composition. Furthermore, as the results on thin-layer chromatography, ion-exchange resin chromatography and reaction with 137 Cs in samples and ammonium phosphomolybdate, 137 Cs in the NPNC fraction of the killifish's meat was not almost different from those of each control and 137 CsCl solution. (author)

  15. Cs/CsPbX3 (X = Br, Cl) epitaxial heteronanocrystals with magic-angle stable/metastable grain boundary

    Science.gov (United States)

    Zhang, Yumeng; Fan, Baolu; Wu, Wenhui; Fan, Jiyang

    2017-05-01

    Metal-semiconductor heteronanostructures are crucial building blocks of nanoscale electronic and optoelectronic devices. However, the lattice misfit remains a challenge in constructing heteronanostructures. Perovskite nanocrystals are superior candidates for constructing nanodevices owing to excellent optical, ferroelectric, and superconducting properties. We report the epitaxial growth of lattice-matched Cs/CsPbBr3 metal-semiconductor heteronanocrystals in a liquid medium. The well-crystallized ultrathin Cs layers grow epitaxially on the surfaces of colloidal CsPbBr3 nanocrystals, forming heteronanocrystals with interface diameters of several nanometers. Most of them are pseudomorphic with coherent interfaces free from dislocations, and the others exhibit discrete high-angle grain boundaries. The model based on the calculation of the elastic potential energy of the epilayer and analysis of the near-coincidence sites explains well the experimental result. The analysis shows that the excellent lattice match between the metal and the semiconductor ensures the ideal epitaxial-growth of both Cs/CsPbBr3 and Cs/CsPbCl3 heteronanocrystals. Such metal/semiconductor heteronanocrystals pave the way for developing perovskite-based nanodevices.

  16. A second generation Cs BEC experiment

    International Nuclear Information System (INIS)

    Gustavsson, M.; Unterwaditzer, P.; Naegerl, H.-C.

    2004-01-01

    We present a new experiment currently under construction in Innsbruck. A Cs BEC will be produced in a glass cell apparatus, allowing maximum optical access and rapid switching of magnetic fields. A high loading rate and a large-volume optical dipole trap at near infrared wavelengths together with optimized 3D Raman sideband cooling should allow for large condensates with more than 10 6 atoms. We plan to load the BEC into a 3D optical lattice. With precisely two or three atoms per site and s-wave interactions tunable through Feshbach resonances at low magnetic fields, it will be possible to study collisions and molecule formation in a very controlled environment. The formation of a molecular BEC made out of bosonic constituents might be stabilized with help of the lattice. A further possible application is the measurement of clock shifts. Another interesting possibility is to study the regime of zero scattering length. A BEC without perturbing mean-field shifts is ideally suited for atom interferometry and precision measurements. For example, it is possible to determine the fine structure constant alpha via measurement of the photon recoil. (author)

  17. Epiphytic fruticose lichens as biomonitors for retrospective evaluation of the 134Cs/137Cs ratio in Fukushima fallout

    International Nuclear Information System (INIS)

    Ramzaev, V.; Barkovsky, A.; Gromov, A.; Ivanov, S.; Kaduka, M.

    2014-01-01

    In 2011–2013, sampling of epiphytic fruticose lichens of the genera Usnea, Bryoria and Alectoria was carried out on Sakhalin and Kuril Islands (the Sakhalin region, Russia) to investigate contamination of these organisms with the Fukushima-derived 134 Cs and 137 Cs. Activities of the radionuclides were determined in all 56 samples of lichens taken for the analysis. After correction for radioactive decay (on 15 March 2011), the activity concentrations ranged from 2.1 Bq kg −1 (d.w.) to 52 Bq kg −1 for 134 Cs and from 2.3 Bq kg −1 to 52 Bq kg −1 for 137 Cs. Cesium-134 and 137 Cs activities for the whole set of lichens (n = 56) were strongly positively correlated; Spearman's rank correlation coefficient was calculated as 0.991 (P < 0.01). The activity concentrations of 134 Cs and 137 Cs in Usnea lichens from the Sakhalin and Kunashir islands declined with a factor of three in the period from 2011 to 2013. The average biological half-time for both cesium radionuclides in lichens of the genus Usnea is estimated as 1.3 y. The mean of 0.99 ± 0.10 and median of 0.99 were calculated for the decay corrected 134 Cs/ 137 Cs activities ratios in the lichens (n = 56). The radionuclides ratio in the lichens did not depend on location of sampling site, species and the time that had passed after the Fukushima accident. The regression analysis has shown the background pre-Fukushima level of 137 Cs of 0.4 ± 0.3 Bq kg −1 , whereas the ratio between the Fukushima-borne 134 Cs and 137 Cs in the lichens was estimated as 1.04. The 134 Cs/ 137 Cs activities ratio in lichens from the Sakhalin region is consistent with the ratios reported by others for the heavy contaminated areas on Honshu Island in Japan following the Fukushima accident. The activity concentrations of natural 7 Be in lichens from the Sakhalin region varied between 100 Bq kg −1 and 600 Bq kg −1 ; the activity concentrations did not exhibit temporal variations during a 2y-period of observations. The

  18. Photoresponse of CsPbBr3 and Cs4PbBr6 Perovskite Single Crystals.

    Science.gov (United States)

    Cha, Ji-Hyun; Han, Jae Hoon; Yin, Wenping; Park, Cheolwoo; Park, Yongmin; Ahn, Tae Kyu; Cho, Jeong Ho; Jung, Duk-Young

    2017-02-02

    High-quality and millimeter-sized perovskite single crystals of CsPbBr 3 and Cs 4 PbBr 6 were prepared in organic solvents and studied for correlation between photocurrent generation and photoluminescence (PL) emission. The CsPbBr 3 crystals, which have a 3D perovskite structure, showed a highly sensitive photoresponse and poor PL signal. In contrast, Cs 4 PbBr 6 crystals, which have a 0D perovskite structure, exhibited more than 1 order of magnitude higher PL intensity than CsPbBr 3 , which generated an ultralow photoresponse under illumination. Their contrasting optoelectrical characteristics were attributed to different exciton binding energies, induced by coordination geometry of the [PbBr 6 ] 4- octahedron sublattices. This work correlated the local structures of lead in the primitive perovskite and its derivatives to PL spectra as well as photoconductivity.

  19. 137Cs in the western South Pacific Ocean

    International Nuclear Information System (INIS)

    Yamada, Masatoshi; Wang Zhongliang

    2007-01-01

    The 137 Cs activities were determined for seawater samples from the East Caroline, Coral Sea, New Hebrides, South Fiji and Tasman Sea (two stations) Basins of the western South Pacific Ocean by γ spectrometry using a low background Ge detector. The 137 Cs activities ranged from 1.4 to 2.3 Bq m -3 over the depth interval 0-250 m and decreased exponentially from the subsurface to 1000 m depth. The distribution profiles of 137 Cs activity at these six western South Pacific Ocean stations did not differ from each other significantly. There was a remarkable difference for the vertical profiles of 137 Cs activity between the East Caroline Basin station in this study and the GEOSECS (Geochemical Ocean Sections Study) station at the same latitude in the Equatorial Pacific Ocean; the 137 Cs inventory over the depth interval 100-1000 m increased from 400 ± 30 Bq m -2 to 560 ± 30 Bq m -2 during the period from 1973 to 1992. The total 137 Cs inventories in the western South Pacific Ocean ranged from 850 ± 70 Bq m -2 in the Coral Sea Basin to 1270 ± 90 Bq m -2 in the South Fiji Basin. Higher 137 Cs inventories were observed at middle latitude stations in the subtropical gyre than at low latitude stations. The 137 Cs inventories were 1.9-4.5 times (2.9 ± 0.7 on average) and 1.7-4.3 times (3.1 ± 0.7 on average) higher than that of the expected deposition density of atmospheric global fallout at the same latitude and that of the estimated 137 Cs deposition density in 10 o latitude by 10 deg. longitude grid data obtained by Aoyama et al. [Aoyama M, Hirose K, Igarashi Y. Re-construction and updating our understanding on the global weapons tests 137 Cs fallout. J Environ Monit 2006;8:431-438], respectively. The possible processes for higher 137 Cs inventories in the western South Pacific Ocean than that of the expected deposition density of atmospheric global fallout may be attributable to the inter-hemisphere dispersion of the atmospheric nuclear weapons testing 137 Cs from

  20. El estatuto legal y social de las lenguas en la educación indígena mexicana

    Directory of Open Access Journals (Sweden)

    Dalia Ruiz Ávila

    2002-01-01

    Full Text Available En este documento se propicia una reflexión acerca de la forma en que la inmersión de las lenguas indígenas en preceptos de carácter legal y social confiere una dinámica particular a la realización de la educación formal destinada a amplios sectores de la población mexicana. Las interrogantes que se plantean a lo largo de la exposición son: ¿Cómo se traduce lo asentado en el plano jurídico en relación con el indígena en el marco de la educación indígena?, y ¿cómo se introduce la representación social del indígena en la educación formal diseñada para ellos? Para un acercamiento a las respuestas se indaga en los documentos oficiales que abordan el tema, en la revisión de datos censales y en algunos elementos teórico-metodológicos de la educación, las ciencias del lenguaje y la antropología. Las premisas de las cuales se parte son: 1 el auge de los movimientos indígenas ha golpeado a la hegemonía de las posiciones multiculturales y asimilacionistas; 2 los pueblos indígenas se han instalado como actores sociales en los escenarios políticos, y 3 la cuestión indígena no es un problema marginal. Exige una reforma del Estado y la participación de la sociedad civil. Un análisis fundamentado en la categoría de formación imaginaria propuesta por Michel Pécheux1 permite un acercamiento a la caracterización del sujeto indígena por sí mismo; del otro, sea o no indígena y del referente; es decir, de lengua y cultura. De éste se desprende que es necesaria una reformulación del estatuto legal, que sea acorde con los requerimientos de los diversos grupos indígenas, con el reconocimiento a la diversidad cultural.

  1. Sequestration and disposal of dissolved Cs+ using zeolite 13X

    Science.gov (United States)

    Park, M.; Park, J.; Jeong, H. Y.

    2017-12-01

    Low-to-intermediate level liquid radioactive wastes (LILLW) typically contain high levels of radioactive 137Cs. Due to the great radiational and thermal stability as well as the high selectivity, zeolite has been commonly utilized to sequester radioactive isotopes from nuclear wastewater effluents. In this study, an Al-rich synthetic zeolite 13X was evaluated for the sorption capacity of Cs+ as a function of pH (4.0-10.5), ionic strength (0.05 and 0.2 M), and initial Cs+ concentration (1×10-6-5×10-3 M). For safe disposal, Cs+-exchanged 13X was both thermally and hydrothermally treated under different temperature and pressure. Subsequently, the resultant materials were examined for the phase transition by X-ray diffraction (XRD) and the local coordination chemistry by X-ray absorption spectroscopy (XAS). Our experimental results will detail the Cs+ sorption behavior by 13X under varying solution compositions. Also, the structural changes of Cs+-exchanged 13X upon thermal and hydrothermal treatment will be delineated to assess the stability of Cs+ in the treated materials.

  2. Cs-137 in Arctic foxes (Alopex lagopus) on Svalbard

    International Nuclear Information System (INIS)

    Gwynn, Justin P.; Fuglei, Eva; Dowdall, Mark

    2007-01-01

    This study presents 137 Cs muscle activity concentrations in Arctic foxes (Alopex lagopus) from Svalbard over a period of several years and discusses the transfer of 137 Cs to Arctic foxes through likely predator-prey relationships. Mean 137 Cs activity concentrations and 137 Cs T ag values (per trapping season) ranged from 0.51 ± 2.76 to 1.32 ± 2.89 Bq/kg (w.w.) and 5.1 x 10 -4 to 1.3 x 10 -3 m 2 /kg, respectively. Mean concentration ratios of 137 Cs in Arctic foxes compared to probable prey ranged from 1.0 to 7.9. On Svalbard, transfer of 137 Cs to Arctic foxes is likely to occur via both marine and terrestrial food chains. The relative contribution of marine and terrestrial food sources to the diet of Arctic foxes may vary by location and by season and may lead to either an increase or decrease in the trophic transfer of 137 Cs to Arctic foxes compared to transfer resulting from terrestrial only diets

  3. Measurement limits to 134Cs concentration in soil

    International Nuclear Information System (INIS)

    Ahn, J.K.; Kim, J.S.; Lee, H.M.; Kim, H.; Kim, T.H.; Park, J.N.; Kang, Y.S.; Lee, H.S.; Kim, S.J.; Park, J.Y.; Ryu, S.Y.; Kim, H.-Ch.; Kang, W.G.; Kim, S.K.

    2011-01-01

    We investigate the caesium concentrations in soils in mountain areas near Gori nuclear power plant in Korea, focusing on the measurement limits to the 134 Cs. In order to lower the minimum detectable amount (MDA) of activity for the 134 Cs, we have used the ammonium molybdophosphate (AMP) precipitation method to get rid of the 40 K existing in natural radioactivity, which reduces the MDA activity about 10 times smaller than those without the AMP precipitation method. The MDA results for the 134 Cs were found to be in the range between 0.015 and 0.044 Bq/kg-dry weight. In order to diminish the background, we also have measured a part of the soil samples in Yangyang, a small town in the east coast of Korea. However, it turns out that in order to detect the 134 Cs in the samples the MDA should be reduced to the level of mBq/kg-dry weight. - Highlights: → We study the caesium concentrations in soils in mountain areas near Gori NPT in Korea. → We use the AMP precipitation method to lower the minimum detectable amount (MDA) of activity for the 134 Cs. → The results of the MDA for the 134 Cs turn out to be in the range between 0.015 and 0.044. → In order to detect the 134 Cs in the samples, the MDA should be reduced to the level of mBq/kg-dry weight.

  4. Measurement of 137Cs activity in living chicken

    International Nuclear Information System (INIS)

    Balas, J.; Poeschl, M.

    1998-01-01

    The possibility of measuring the 137 Cs activity in broiler chickens in vivo was examined. The experiment was conducted with broiler chickens 7 to 22 days old (White Leghorn hybrid, race ISA VEDETTE). Three oral doses of 137 Cs (total activity 5 kBq/chicken) were administered during a day (at 8:00, 12:00 and 16:00). The radioactivity was determined by gamma spectroscopy with a stabilised Nal/Tl detector. The measurement was carried out on days 1, 2, 3, 4, 7, 8, 14 and 15 after the 137 Cs administration in vivo. The detector was put closely to the body in the area of breast muscles. The radiocesium activity concentrations in fresh daily excreta were also determined. A rapid uptake of the orally administered 137 Cs (within a few hours) as well as a rapid loss of radiocesium were observed. The dynamics and accuracy of the in vivo measurement of 137 Cs activity were comparable with the recently published results of in vitro measurement of radiocesium activity. Only the initial 137 Cs activity (during 2 days after 137 Cs application) was higher with regard to the content of contaminated feed mixture in the gastrointestinal tract

  5. Chondroitin Sulfate (CS) Lyases: Structure, Function and Application in Therapeutics.

    Science.gov (United States)

    Rani, Aruna; Patel, Seema; Goyal, Arun

    2018-01-01

    Glycosaminoglycans (GAGs) such as chondroitin sulfate (CS) are the chief natural polysaccharides which reside in biological tissues mainly in extracellular matrix. These CS along with adhesion molecules and growth factors are involved in central nervous system (CNS) development, cell progression and pathogenesis. The chondroitin lyases are the enzyme that degrade and alter the CS chains and hence modify various signalling pathways involving CS chains. These CS lyases are substrate specific, can precisely manipulate the CS polysaccharides and have various biotechnological, medical and therapeutic applications. These enzymes can be used to produce the unsaturated oligosaccharides, which have immune-modulatory, anti-inflammatory and neuroprotective properties. This review focuses on the major breakthrough of the chondroitin sulfate degrading enzymes, their structures and functioning mechanism. This also provides comprehensive information regarding production, purification, characterization of CS lyases and their major applications, both established as well as emerging ones such as neural development. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  6. Waste forms based on Cs-loaded silicotitanates

    International Nuclear Information System (INIS)

    Balmer, M.L.; Bunker, B.C.

    1995-04-01

    Silicotitanate ion exchange materials are being considered for removal of radioactive Cs and Sr from tank wastes at the Hanford site. The phase evolution as a function of heat treatment temperature for several sol gel derived compositions within the Cs 2 O-SiO 2 -TiO 2 system was investigated, in order to determine if an adequate waste form can be achieved by direct thermal conversion. The Cs leach rates and Cs loss during heat treatment of select materials were measured. Some compositions which contain large amounts of Ti melt to form a glass with reasonably low aqueous leach rates. A new Cs-silicotitanate material with a structure isomorphous to pollucite was discovered. This material forms at low temperatures (700--800 C) where Cs volatility is negligible. The silicotitanate-pollucite exhibits extremely low leach rates (1.42 g/m 2 day ) at 90 C, and has been identified as a promising waste form for Cs containment

  7. Breve caracterização do Instituto Cubano de Arte e Indústria Cinematográfica como indústria cultural

    Directory of Open Access Journals (Sweden)

    Hansel Pavel Oro Oro

    2016-11-01

    Full Text Available A Economia Política da Comunicação proporciona a plataforma teórica para compreender o movimiento cinematográfico cubano a partir do conceito de indústria cultural. A concepção fundacional do ICAIC sobre o cinema como realização artística mais do que econômica resulta coerente com a condição improdutiva do trabalho e o alto valor social que caracteriza essa atividade. Constata-se, não obstante, contradições e tensões críticas em relação à finalidade social e a sustentabilidade econômica, a produção do autor e as fontes de financiamento, a defesa da identidade nacional e a necessidade de inserção nos circuitos comerciales globais.

  8. 134Cs emission probabilities determination by gamma spectrometry

    Science.gov (United States)

    de Almeida, M. C. M.; Poledna, R.; Delgado, J. U.; Silva, R. L.; Araujo, M. T. F.; da Silva, C. J.

    2018-03-01

    The National Laboratory for Ionizing Radiation Metrology (LNMRI/IRD/CNEN) of Rio de Janeiro performed primary and secondary standardization of different radionuclides reaching satisfactory uncertainties. A solution of 134Cs radionuclide was purchased from commercial supplier to emission probabilities determination of some of its energies. 134Cs is a beta gamma emitter with 754 days of half-life. This radionuclide is used as standard in environmental, water and food control. It is also important to germanium detector calibration. The gamma emission probabilities (Pγ) were determined mainly for some energies of the 134Cs by efficiency curve method and the Pγ absolute uncertainties obtained were below 1% (k=1).

  9. Study of /sup 137/Cs absorption by Lemna minor

    Energy Technology Data Exchange (ETDEWEB)

    Bergamini, P G; Palmas, G; Piantelli, F; Sani, M [Siena Univ. (Italy). Ist. di Fisica; Banditelli, P; Previtera, M; Sodi, F

    1979-09-01

    Absorption of /sup 137/Cs by the floating aquatic plant Lemna minor in relation to /sup 137/Cs concentration in the water was measured under controlled conditions of temperature, pH and light. The method used to analyse the results is described. When applied to this study the method shows the influence on /sup 137/Cs absorption of (1) potassium-cesium exchange due to chemical affinity, (2) the natural colony growth of the organism and (3) the effect of light. Concentration factors were determined for these three processes.

  10. Study of 137Cs absorption by Lemna minor

    International Nuclear Information System (INIS)

    Bergamini, P.G.; Palmas, G.; Piantelli, F.; Sani, M.; Banditelli, P.; Previtera, M.; Sodi, F.

    1979-01-01

    Absorption of 137 Cs by the floating aquatic plant Lemna Minor in relation to 137 Cs concentration in the water was measured under controlled conditions of temperature, pH and light. The method used to analyse the results is described. When applied to this study the method shows the influence on 137 Cs absorption of (1) potassium-cesium exchange due to chemical affinity, (2) the natural colony growth of the organism and (3) the effect of light. Concentration factors were determined for these three processes. (author)

  11. Jóvenes indígenas y relatos sobre escolaridades en la Universidad Pedagógica Nacional

    Directory of Open Access Journals (Sweden)

    Gabriela Czarny

    2016-04-01

    Full Text Available El texto pretende contribuir a la comprensión de los entrecruzamientosy las complejidades presentes bajo categorías homogeneizantescomo la de “jóvenes estudiantes indígenas” en la educación superior.En particular, en torno de la presencia indígena en la UniversidadPedagógica Nacional, Ajusco, (UPN, Ajusco en la ciudad de México,en donde opera desde 1982 el programa de Educación Indígena, marcavisible de lo étnico en la universidad. Retomo los textos de autoríade jóvenes indígenas, producidos durante un ejercicio colectivo conellos en la universidad, en los que identifico heterogeneidades en susadscripciones comunitarias, como así también en los modos de autopresentarsey definirse. Como parte del análisis considero algunos delos debates que atraviesan este campo de estudio, entre ellos, el conceptode indígena migrante al interior del país, el modo de caracterizara los indígenas y las comunidades en las ciudades, y los sentidos -entensión para los jóvenes-, que adquiere la educación superior. Se tratade ubicar en la agenda educativa, la comprensión de que estos temasresultan retos académicos, sociales y políticos para la transformaciónde las sociedades multiétnicas como las latinoamericanas, así comopara las instituciones de educación superior que reciben cada vez másestudiantes indígenas con diversas adscripciones socioculturales, étnicas,lingüísticas.

  12. ¿Indígenas o campesinos , pueblos de la selva o de la montaña? Viejos debates, nuevas perspectivas

    Directory of Open Access Journals (Sweden)

    Christian Gros

    2013-01-01

    Full Text Available Este artículo interroga en qué medida la creación de una etnicidad genérica, producida por las movilizaciones indígenas durante las tres últimas décadas, permite superar la ruptura tradicional que existe entre pueblos indígenas de las tierras bajas y las comunidades indígenas campesinas de los Andes.

  13. Changing US Attributes After CS-US Pairings Changes CS-Attribute-Assessments: Evidence for CS-US Associations in Attribute Conditioning.

    Science.gov (United States)

    Förderer, Sabine; Unkelbach, Christian

    2016-03-01

    Attribute Conditioning (AC) refers to people's changed assessments of stimuli's (CSs) attributes due to repeated pairing with stimuli (USs) possessing these attributes; for example, when an athletic person (US) is paired with a neutral person (CS), the neutral person is judged to be more athletic after the pairing. We hypothesize that this AC effect is due to CSs' associations with USs rather than direct associations with attributes. Three experiments test this hypothesis by changing US attributes after CS-US pairings. Experiments 1 and 2 conditioned athleticism by pairing neutral men (CSs) with athletic and non-athletic USs. Post-conditioning, USs' athleticism was reversed, which systematically influenced participants' assessment of CS athleticism. Experiment 3 conditioned athleticism and changed USs' musicality after CS-US pairings. This post-conditioning change affected musicality assessments of CSs but did not influence athleticism-assessments. The results indicate that AC effects are based on an associative CS-US-attribute structure. © 2016 by the Society for Personality and Social Psychology, Inc.

  14. Situación de salud y nutrición de niños indígenas y niños no indígenas de la Amazonia peruana

    Directory of Open Access Journals (Sweden)

    Adrián Díaz

    2015-07-01

    Full Text Available OBJETIVO: Evaluar el estado nutricional de los menores de 5 años, indígenas y no indígenas, de dos provincias de la Amazonia peruana. MÉTODOS: Estudio descriptivo y transversal representativo de familias con niños menores de cinco años residentes en las provincias de Bagua y Condorcanqui en Perú. El estudio incluyó entrevista a la madre o cuidador del(os niño(s, evaluación antropométrica, hemoglobina en sangre capilar, búsqueda de parásitos intestinales en los niños menores de 5 años, acceso a los servicios de salud, antecedentes de infecciones respiratorias agudas y enfermedades diarreicas agudas, condición socioeconómica y consumo de sal inadecuadamente yodada. Mediante métodos lineares generalizados se identificaron los determinantes de la desnutrición crónica y anemia infantil en cada población de estudio. RESULTADOS: Se evaluaron 986 familias y 1 372 niños. La prevalencia de desnutrición crónica fue mayor en la población indígena respecto de la no indígena (56,2% versus 21,9%, igual que la anemia (51,3% versus 40,9%. Los determinantes de la desnutrición crónica fueron diferentes en ambas poblaciones. En indígenas, prevaleció la edad mayor a 36 meses (OR 2,21; IC95% 1,61-3, 04 y vivienda inadecuada (OR 2,9; IC95% 1,19-7,11, mientras que en los no indígenas, la pobreza extrema (OR 2,31; IC95% 1,50 - 3,55 y el parto institucional (OR 3,1; IC95% 2,00-4,83. CONCLUSIONES: Existen marcadas brechas entre la población indígena y la población no indígena respecto de las condiciones de vida, acceso a servicios de salud y estado nutricional de menores de 5 años. Se requiere asignar particular atención a la población indígena a fin de adecuar las modalidades de entrega de los programas y servicios que ofrece el Estado en dichos contextos.

  15. A novel vanadosilicate with hexadeca-coordinated Cs{sup +} ions as a highly effective Cs{sup +} remover

    Energy Technology Data Exchange (ETDEWEB)

    Datta, Shuvo Jit; Moon, Won Kyung; Choi, Do Young; Hwang, In Chul; Yoon, Kyung Byung [Sogang Univ., Seoul (Korea, Republic of). Korea Center for Artificial Photosynthesis

    2014-07-07

    The effective removal of {sup 137}Cs{sup +} ions from contaminated groundwater and seawater and from radioactive nuclear waste solutions is crucial for public health and for the continuous operation of nuclear power plants. Various {sup 137}Cs{sup +} removers have been developed, but more effective {sup 137}Cs{sup +} removers are still needed. A novel microporous vanadosilicate with mixed-valence vanadium (V{sup 4+} and V{sup 5+}) ions is now reported, which shows an excellent ability for Cs{sup +} capture and immobilization from groundwater, seawater, and nuclear waste solutions. This material is superior to other known materials in terms of selectivity, capacity, and kinetics, and at very low Cs{sup +} concentrations, it was found to be the most effective material for the removal of radioactive Cs{sup +} ions under the test conditions. This novel vanadosilicate also contains hexadeca-coordinated Cs{sup +} ions, which corresponds to the highest coordination number ever described.

  16. Oil use of the effluent plant ETEO (Effluent Station of Oil Treatment) as combustible for generation of energy in the power plant UG-50Hz; Utulizacao de oleo da ETEO (Estacao de Tratamento de Efluentes Oleosos) para geracao de energia na UG-50Hz

    Energy Technology Data Exchange (ETDEWEB)

    Souza, Jose Francisco de; Nascimento, Jose Maria do; Silva, Luiz Antonio da; Salazar, Marcos Vinicios; Baptista, Reinaldo Lopes; Barros, Sueli Aguiar [Companhia Siderurgica Nacional (CSN), Volta Redonda, RJ (Brazil)

    2009-11-01

    The areas of finishing products of CSN Steel Plant generate contaminated effluents with oil and grease , that are treated in ETEO (Effluent Station of Oil Treatment). In this plant, the oil is processed to be sold for the consuming market. However, some seasons of the year, the market does not absorb the oil, and CSN is obliged to defray the burning of this oil, to not interrupt the productive process and cause an environmental impact. Because of this situation, we search alternatives for the viable use of this oil inside CSN steel plant, taking care for the security of the processes and the impact to the environment. This paper describes the details of the work and the implantation of the burning of this oil of the ETEO with BPF oil (type of petrochemical oil) as combustible in the boiler 7 of the power plant UG 50 Hz. For the implantation of this project, operational contingencies of security for equipment was prepared . Moreover, the work included chemical analyses of the oil and the conditions of the boiler using this mixing of oils. The reached results demonstrate the total viability of this project and it was proved another alternative of the use of this residue, with reduction of the fuel costs , steam costs and the electric energy generated in the power plant of CSN. (author)

  17. As práticas corporais e a educação do corpo indígena: a contribuição do esporte nos jogos dos povos indígenas

    Directory of Open Access Journals (Sweden)

    Arthur José Medeiros de Almeida

    2010-12-01

    Full Text Available No presente estudo procurou-se analisar a relação entre o esporte e a educação do corpo indígena no contexto dos Jogos dos Povos Indígenas. O objetivo foi o de entender o significado do evento em relação ao sentido de educação do corpo indígena. Para tanto, realizou-se uma investigação com base nos pressupostos metodológicos das Ciências Sociais, combinando-se consulta a documentos com a o trabalho de campo, que ocorreu durante a IX edição dos Jogos dos Povos Indígenas. Nesse ínterim, a reflexão e a interpretação mostraram que o evento adquire conotação de espetáculo e que práticas corporais tradicionais assumem características do esporte de alto rendimento, podendo contribuir para o surgimento de outro habitus e modificar a relação dos indígenas com o uso de seu corpo.

  18. Avaliação da eficiência energética em uma indústria de painéis compensado

    OpenAIRE

    Silva, Dimas Agostinho da

    2013-01-01

    Este trabalho trata do perfil e do uso de energia em uma indústria de painéis compensado no Brasil. O seu objetivo geral é corroborar para a melhoria da competitividade da indústria de compensado nacional. Especificamente visou conhecer o perfil do consumo energético na indústria, avaliar possibilidade de ganhos de eficiência no componente energético do processo produtivo e disponibilizar modelos matemáticos de consumo energético aplicado às indústrias de painéis compensado. O trabalho foi de...

  19. Entre Didjazá y la Zandunga: iconografía y autorrepresentación indígena de las mujeres del Istmo de Tehuantepec, Oaxaca

    Directory of Open Access Journals (Sweden)

    Gabriela Zamorano Villarreal

    2005-03-01

    Full Text Available Cuestionando la existencia de lo que muchas veces se ha explicado como “la mirada india”, el presente artículo pregunta cómo las imágenes producidas por indígenas existen en diálogo con otras representaciones visuales y escritas sobre lo indígena. Para ello retomaré algunas de las reflexiones que se han comentado alrededor de la abundante iconografía sobre las mujeres indígenas del istmo de Tehuantepec, y trataré de situarlas en relación con las autorrepresentaciones indígenas actuales.

  20. Hybridization of Single Nanocrystals of Cs4PbBr6 and CsPbBr3

    OpenAIRE

    Weerd, Chris de; Lin, Junhao; Gomez, Leyre; Fujiwara, Yasufumi; Suenaga, Kazutomo; Gregorkiewicz, Tom

    2017-01-01

    Nanocrystals of all-inorganic cesium lead halide perovskites (CsPbX3, X = Cl, Br, I) feature high absorption and efficient narrow-band emission which renders them promising for future generation of photovoltaic and optoelectronic devices. Colloidal ensembles of these nanocrystals can be conveniently prepared by chemical synthesis. However, in the case of CsPbBr3, its synthesis can also yield nanocrystals of Cs4PbBr6 and the properties of the two are easily confused. Here, we investigate in de...

  1. Plutonium isotopes/137Cs activity ratios for soil in Montenegro

    International Nuclear Information System (INIS)

    Antovic, N. M.; Vukotic, P.; Svrkota, N.; Andrukhovich, S.K.

    2011-01-01

    Plutonium isotopes/ 137 Cs activity ratios were determined for six soil samples from Montenegro, using the results of alpha-spectrometric measurements of 239+240 Pu and 238 Pu, as well as gamma-spectrometric cesium measurements. An average 239+240 Pu/ 137 Cs activity ratio is found to be 0.02, as the 238 Pu/ 137 Cs and 238 Pu/ 239+240 Pu one - 0.0006 and 0.03, respectively. It follows from the results that the source of plutonium in Montenegro soil is nuclear weapon testing during the fifties and sixties of the twentieth century. On the other hand, there is a contribution of the accident at the Chernobyl nuclear power plant to the soil contamination with 137 Cs isotope. [sr

  2. Speciation of 137Cs in the Baltic sea water

    International Nuclear Information System (INIS)

    Lujaniene, G.; Morkuniene, R.; Styra, D.

    1998-01-01

    A possibility of application of Filtrac 391 and Nuclepore filters, Ky-2-8-C exchanger and the Mtilon-T fiber impregnated with Fe, Co, Ni ferrocyanides for separation of particulate and ionic 137 Cs in the sea water was investigated. Physico-chemical forms of 137 Cs were investigated in the Baltic Sea water during 1995-1997. It was determined that 137 Cs was mainly present in ionic form (62-93 %) both in the near-shore and open waters. Concentration of particulate 137 Cs ranged from 255 to 625 Bq/kg (dry weight).The distribution coefficient (K d ) of radiocaesium reached values of 2100-9700. (author)

  3. Quasi-freestanding graphene on Ni(111) by Cs intercalation

    KAUST Repository

    Alattas, Maha Hassan Mohssen; Schwingenschlö gl, Udo

    2016-01-01

    A possible approach to achieve quasi-freestanding graphene on a substrate for technological purpose is the intercalation of alkali metal atoms. Cs intercalation between graphene and Ni(111) therefore is investigated using density functional theory

  4. Quasi-freestanding graphene on Ni(111) by Cs intercalation

    KAUST Repository

    Alattas, Maha Hassan Mohssen; Schwingenschlö gl, Udo

    2017-01-01

    It is of technological interest to achieve quasi-freestanding graphene on a substrate. A possible approach is the intercalation of alkali metal atoms. Cs intercalation between graphene and Ni(111) is investigated using density functional theory

  5. Retention of Cs on zeolite, bentonite and their mixtures

    International Nuclear Information System (INIS)

    Atun, G.

    2002-01-01

    The sorption behavior of cesium on zeolite and bentonite minerals and their mixtures was studied by means of a batch method and a tracer technique. All experiments were carried out in the presence of CsCl spiked with 137 Cs and NaCl as a supporting electrolyte in varying concentrations. The distribution coefficients (K D ) did not show significant differences at low Cs + loadings while they decreased in the high loading region. Freundlich and D-R isotherms were applied to the adsorption data of zeolite and bentonite. Adsorption capacities and mean energies calculated from D-R isotherm parameters decreased by increasing ionic strength on both minerals. The identification of the specific uptake sites was attempted on the basis of the Freundlich isotherm. Experimentally observed distribution coefficients of Cs on two mineral mixtures were smaller than theoretically calculated values, except at the highest NaCl concentration. (author)

  6. Kinetics of Cs adsorption on soils with different mineralogical composition

    International Nuclear Information System (INIS)

    Nakao, Atsushi; Funakawa, Shinya; Kosaki, Takashi

    2004-01-01

    137 Cs is one of the main radioisotopes released into the environment by nuclear powerstation accidents (e.g. Chernobyl) and nuclear weapons tests. Many studies have shown that Cs tends to remain at surface soils due to the high adsorption selectivity of clay minerals for this element. This behavior of the Cs + ion is, however, assumed to vary significantly depending on the mineralogical composition of the soil. The main objective of this study is to analyze the kinetics of Cs adsorption on soils with different mineralogical composition. Soil samples used in this study were Mollisols (Um) and Alfisols (Ua) from Ukraine, Ultisols (Tu) from Thailand and Spodosols (Js) from Japan. The dominant clay species of these soils are montmorillonite (Um, Ua), kaolinite and mica (Tu) and beidellite (Js). The rates of Cs adsorption and Ca or K desorption were measured using a continuous flow method. Soil samples that were previously saturated with Ca 2+ were leached with a 0.75 mmol/l Cs + solution at a constant rate of 2.0 ml/min. The leachate was collected every 10 minutes and the concentrations of Cs + , Ca 2+ and K + of each aliquot were measured by atomic adsorption spectrophotometry (Cs + , Ca 2+ ) and flame spectrophotometry (K + ). The datasets obtained were simulated using the first order kinetic model: y = a(1 - exp(-kt)), where a is the adsorption (desorption) maximum and k the rate constant. It is here assumed that Ca 2+ is desorbed from cation exchange sites and K + desorbed from the frayed edges of micaceous minerals. The values of a obtained for both Cs adsorption and Ca desorption was in the order Js>Um>Tu>Ua, whereas the values of k were in the order Tu>Ua>Um>Js. This result reflects the values of permanent negative charge of clays which are originated from the substitution of cations in the structure of 2:1 clay minerals. The value of a for K + desorption was, however, highest in Tu, suggesting that the values of Cs + -exchangeable K + correspond to the amount

  7. Subjetividades indígenas impuestas y desafiantes en el discurso televisivo

    Directory of Open Access Journals (Sweden)

    Ana Ramos

    2002-12-01

    Full Text Available Rebelión del Arauco y Otra Justicia, Otra Cultura son informes de investigación periodística. Ambas narrativas -tomadas del discurso televisivo- construyen un "otro indígena" como premisa de un argumento más amplio. El primero pertenece a un programa chileno en el que el indígena es un ejemplo de violencia ejercida contra el "sistema". El segundo corresponde a un informativo argentino en el que la construcción del conflicto intra e interétnico ilustra la inoperancia del "estado". El propósito de este trabajo consiste en analizar las estrategias simbólicas utilizadas por la instancia enunciativa del programa televisivo y aquellas que emergen de los eventos citados; y a través de los ejemplos seleccionados mostrar el modo en que estas estrategias pueden ser utilizadas en el discurso televisivo para confirmar o desafiar estereotipos en torno a la construcción conjunta del ser indígena y el ser nacional."Arauco´s rebellion" and "Other justice, other culture" are press investigation reports. Both narratives -from television discourse- construct an "indigenous other" like premises of a broader argument. The first one belongs to a Chilean programme in which the indigenous actions are shown like examples of violence against "the system". The second one is from an Argentine news programme in which the construction of an intra and inter-ethnic conflict illustrates the inoperation of the State. The intention of this article is to analyse the symbolic strategies used by the enunciative instances of television programmes, and those that emerge from the cited events; and through the selected examples to show the way in which these strategies may be used in the television discourse to confirm or challenge stereotypes that surround the simultaneous construction of the indigenous being and the national being.

  8. La jurisdicción indígena en el Sistema Penal Acusatorio

    Directory of Open Access Journals (Sweden)

    Jorge Enrique Benavides Ascuntar

    2011-01-01

    Full Text Available La investigación surge de la necesidad de solucionar, a través del procedimiento del SPA, el conflicto de competencia jurisdiccional por la injusticia e impotencia de las autoridades indígenas de no poder juzgar a sus miembros, cuando incurren en "delitos". El problema parte de lo general de la base principial dogmática y la incongruencia con normas orgánicas constitucionales aborígenes, específicamente la jurisdicción indígena,la que debe atemperarse a la Constitución para arribar al tema particular de la resolución del conflicto de jurisdicciones. Para este propósito se analizaron e interpretaron los valores, principios y la constitucionalidad de la jurisdicción indígena, tomando incluso las expresiones semánticas del art. 246 de la Constitución Nacional. Los resultados de investigación de esta propuesta surgen de la colisión de los sistemas jurídico y normativo de culturas diferentes e iguales, deeste análisis constitucional, legal y jurisprudencial, se concreta la propuesta de una Audiencia Especial comorequisito de procedibilidad para solucionar el conflicto de competencias jurisdiccionales. Este procedimiento,no regulado legalmente, es una omisión legislativa; en este sentido estos resultados se recomienda tenerlos encuenta como propuesta para adicionar a la Ley 906 de 2004, o en la promulgación de la ley de coordinación d jurisdicciones o por la Corte Constitucional en revisiónde Acción de Tutela, en sentencias sobre temas de este carácter.

  9. Emprendimientos productivos en grupos de mujeres indígenas: el caso de Talamanca

    Directory of Open Access Journals (Sweden)

    Ana Rosa Ruiz Fernández

    2009-01-01

    Full Text Available La pobreza es una condición que debe ser tratada desde la generación de capacidades y en especial, en lo productivo. El Programa de Equidad de Género del Instituto Tecnológico de Costa Rica, con una alianza estratégica con el Centro de Información Tecnológica, el Instituto de Estudios de la Mujer de la Universidad Nacional y Fundecooperación, está desarrollando una estrategia de generación de capacidades productivas en grupos de mujeres indígenas en Talamanca. Esta región y en general, los ocho pueblos indígenas que allí viven se han considerado de extrema pobreza y las mujeres tienen las más bajas posibilidades de educación por sus fuertes roles de reproducción y cuido. El proyecto inicia con tres grupos organizados de mujeres indígenas que están gestando proyectos productivos de turismo sostenible, una finca orgánica y reciclaje de desechos sólidos. Estos temas responden a una realidad de la zona: el desempleo y subempleo principalmente de las mujeres, deforestación, contaminación, problemas de salud y falta de oportunidades educativas. El objetivo final es crear una capacidad instalada y organizativa que promueva emprendimientos sostenibles y exitosos, especialmente entre las mujeres y su integración a redes nacionales de micro y pequeña empresas.

  10. Literatura indígena para crianças: o desafio da interculturalidade

    Directory of Open Access Journals (Sweden)

    Ana Paula Franco Nobile Brandileone

    2018-01-01

    Full Text Available El objetivo de este artículo es realizar una reflexión crítica acerca de la producción literaria infantil indígena. Para eso, se recurre a la problematización teórica centrada en el concepto de transculturación, conforme a Canclini (2007, articulada a los estudios sobre literatura infantil y juvenil brasilera de Moratti (2001, Ceccantini (2010 y Martha (2016. Como objeto de análisis son abordadas las obras Paiquerê: el paraíso de los Kaingangs, de Cléo Busatto, y Karú Tarú: el pequeño chamán, de Daniel Munduruku, ambas editadas en 2009. Este análisis permite la proposición de la hipótesis de que, en la literatura indígena más reciente, direccionada al público infantil, se encuentran opciones estéticas condicionadas a un intento de divulgación cultural no siempre afecto a la construcción de textos literarios de mejor cualidad. Así, se torna necesario reflexionar, en el caso de las narrativas, acerca de ideas y concepciones puestas al servicio de un compromiso ideológico cuyos reflejos, en el texto literario, se muestran contradictorios en relación con el lector, el cual tiende a percibir en la cultura indígena un elemento exótico y estereotipado, lo que poco contribuye para construir una relación intercultural democrática y humanizadora.

  11. Radiological Cs-137 accidents/incidents in Estonia

    International Nuclear Information System (INIS)

    Sinisso, Mark

    1997-01-01

    Two radiological accidents/incidents in Estonia are reported. The first -21 October 1994, three brothers entered the Tammiku repository and stole a radioactive Cs-137 source and received dangerous doses of radiation. The other incident (early 1995) involved an abandoned source - a discarded metal cylinder containing Cs-137. Chronologies and factual data are considered for both events. Concise descriptions of the incidents, a medical overview of the fate of injured people and lessons learned are presented

  12. Radiological Cs-137 accidents/incidents in Estonia

    Energy Technology Data Exchange (ETDEWEB)

    Sinisso, Mark [Ministry of Foreign Affairs, Tallin (Estonia)

    1997-12-31

    Two radiological accidents/incidents in Estonia are reported. The first -21 October 1994, three brothers entered the Tammiku repository and stole a radioactive Cs-137 source and received dangerous doses of radiation. The other incident (early 1995) involved an abandoned source - a discarded metal cylinder containing Cs-137. Chronologies and factual data are considered for both events. Concise descriptions of the incidents, a medical overview of the fate of injured people and lessons learned are presented

  13. Detection of CS in Neptune's atmosphere from ALMA observations

    Science.gov (United States)

    Moreno, R.; Lellouch, E.; Cavalié, T.; Moullet, A.

    2017-12-01

    Context. The large and vertically non-uniform abundance of CO in Neptune's atmosphere has been interpreted as the result of past cometary impact(s), either single or distributed in size and time, which could also be at the origin of Neptune's HCN. Aims: We aim to provide observational support for this scenario by searching for other comet-induced species, in particular carbon sulfide (CS) which has been observed continuously in Jupiter since the 1994 Shoemaker-Levy 9 impacts. Methods: In April 2016 we used the ALMA interferometer to search for CS(7-6) at 342.883 GHz in Neptune. Results: We report on the detection of CS in Neptune's atmosphere, the first unambiguous observation of a sulfur-bearing species in a giant planet beyond Jupiter. Carbon sulfide appears to be present only at submillibar levels, with a column density of (2.0-3.1) × 1012 cm-2, and a typical mixing ratio of (2-20) × 10-11 that depends on its precise vertical location. The favoured origin of CS is deposition by a putative large comet impact several centuries ago, and the strong depletion of CS with respect to CO - compared to the Jupiter case - is likely due to the CS sticking to aerosols or clustering to form polymers in Neptune's lower stratosphere. Conclusions: The CS detection, along with recent analyses of the CO profile, reinforces the presumption of a large comet impact into Neptune 1000 yr ago, that delivered CO, CS, and HCN at the same time.

  14. 137Cs content in edible mushrooms of the Transcarpathian region

    Directory of Open Access Journals (Sweden)

    O. O. Parlag

    2013-03-01

    Full Text Available Edible mushrooms (Boletus edulis Bull.: Fr. and Leccinum scabrum (Bull.: Fr. S.F.Gray of Transcarpathian region were analyzed on content of 137Cs. Specific activity of 137Cs in collected mushrooms did not exceed 354 ± 53 Bq/kg (dry substance. Estimation of the contribution into internal exposure dose of population for the condi-tion of 1 kg of mushrooms consumption is carried out.

  15. 137Cs radioactive dating of Lake Ontario sediment cores

    International Nuclear Information System (INIS)

    Ward, T.E.; Breeden, J.; Komisarcik, K.; Porter, R.; Czuczwa, J.; Kaminski, R.; McVeety, B.D.

    1987-12-01

    The distribution of 137 Cs in sediment cores from Lake Ontario provides estimates of the sediment accumulation rates. Geochronology with 210 Pb dating and distribution of Ambrosia (ragweed) pollen compare well with 137 Cs dating. These methods can determine with precision, changes in sedimentation occurring over the past 100 years or so. Typical sedimentation rates of 0.18-0.36 cm/yr were measured. 16 refs., 3 figs., 2 tabs

  16. Obsah Cs-137 v houbách

    OpenAIRE

    ČADOVÁ, Michaela

    2015-01-01

    The aim of this work is to compare the presence of Cs-137 in different kinds of mushrooms in selected locations using semiconductor gamma-ray spectrometry. Research question was determined: Does Cs-137 content amount vary depending on the fungal species? The first part deals with basic knowledge of ionizing radiation, which is important for the complex understanding of thematic problems. This concerns basic radiobiological terms such as radioactivity, ionizing radiation, its biological effect...

  17. Territorio y Poder: La reivindicación territorial de los indígenas de la amazonia boliviana

    Directory of Open Access Journals (Sweden)

    Gabriela Canedo Vásquez

    2011-07-01

    Full Text Available El artículo pretende mostrar la centralidad que tiene el territorio y la demanda territorial para los grupos indígenas de la amazonia boliviana. El territorio tiene un papel importante en la reproducción cultural y en la organización política. La investigación se llevó a cabo en la provincia Mojos del departamento del Beni, y muestra que el manejo territorial itinerante y la percepción del territorio que tenían los grupos indígenas se ha transformado a partir del marco estatal –concretamente desde la ley INRA–. Hoy en día los indígenas demandan títulos de propiedad de los espacios ocupados, ante el avasallamiento de los blancos/karayanas. Es así que aquella concepción ilimitada del territorio, propio de los pueblos panindios, se ha transformado, pues en la actualidad los indígenas perciben un territorio limitado, cercado por propiedades privadas. Sin embargo, el territorio al convertirse en una de las demandas centrales de la organización indígena, es el elemento que les permite posicionarse políticamente en un escenario local y nacional.

  18. Limites da autonomia e da autodefesa indígena: experiências mexicanas

    Directory of Open Access Journals (Sweden)

    John Gledhill

    2012-12-01

    Full Text Available Este trabalho analisa a situação atual das lutas dos povos indígenas mexicanos para alcançarem a autodeterminação e transcenderem os limites do multiculturalismo neoliberal. Após examinar as relações entre a radicalização das demandas indígenas e as transformações do Estado mexicano, a análise centra-se na história recente de uma comunidade indígena nahua no litoral do estado de Michoacán, que tem uma longa e bem-sucedida história de defesa de suas terras comunais, e numa comunidade purépecha no planalto central do mesmo estado, que tem sido sua aliada. A violência de atores externos, que aflige estas comunidades, revela as consequências da penetração em todos os níveis de governo do crime organizado, mas a análise também mostra como a capacidade das comunidades indígenas para resistirem pode ser prejudicada pela sua desarticulação interna pelas mesmas forças, num clima de impunidade em que a violência paramilitar pode avançar uma variedade de interesses econômicos regionais e transnacionais.This text analyzes the present situation of the struggles of Mexico's indigenous peoples to achieve self-determination and transcend the limits of neoliberal multiculturalism. After reviewing the relationships between the radicalization of indigenous demands and transformations of the Mexican state, our analysis focuses on the recent history of a Nahua indigenous community on the Pacific coast of Michoacán state, which has a long and successful history of defense of its communal lands. We also look at a Purhépecha community in the central highlands of Michoacán which has been the first community's ally. The violence of external actors that afflicts these communities reveals the consequences of the penetration of all levels of government by organized crime. However, our analysis also shows how the capacity of indigenous communities to resist can be undermined by their internal disarticulation by the same forces, which

  19. IX. El Decenio Internacional de los Pueblos Indígenas del Mundo

    OpenAIRE

    Tum, Rigoberta Menchú

    2014-01-01

    Han pasado más de 500 años de oscuridad, y hoy sabemos que éste es el tiempo de profundizar en la lucha por el nuevo amanecer que ha de alumbrar el futuro de nuestros pueblos. A lo largo de los últimos años, los pueblos indígenas hemos realizado importantes actividades a nivel nacional, regional y mundial promoviendo así una amplia discusión acerca del estado de nuestros derechos y de la recuperación de nuestra cultura milenaria. De la misma manera, también se hicieron esfuerzos coordinados a...

  20. Interação academia-indústria. Relato da experiência da Vale

    Directory of Open Access Journals (Sweden)

    LUIZ EUGENIO A. M. MELLO

    Full Text Available RESUMO Abordamos aqui a nucleação de um modelo de inovação aberta na Vale (uma das maiores mineradoras do mundo apresentando o contexto histórico em que se deu esse processo. Discutimos algumas das questões que possivelmente haviam até então dificultado a implantação de uma estrutura de pesquisa e desenvolvimento focando o longo prazo pela indústria no Brasil. Destacamos algumas das dificuldades encontradas ao longo do processo, bem como algumas das razões que levaram ao sucesso da iniciativa.

  1. Når HRM sparker døren ind til fremtiden

    DEFF Research Database (Denmark)

    Holt Larsen, Henrik

    2016-01-01

    Vi er alt for beskedne of uambitiøse, når vi siger, hvad HRM kan bidrage med i fremtidens virksomheder. Mange af de generelle udfordringer, som virksomhederne står overfor, har nemlig en karakter, der gør det naturligt eller nødvendigt at sætte ind med HRM-professionalisme. Bolden ligger for vores...... fødder, så nu gælder det bare om at sparke. Artiklen beskriver nogle af de vigtigste udfordringer - og hvorfor HRM er et svar herpå....

  2. Suministro de agua domiciliar a tres comunidades indígenas, Guatemala

    OpenAIRE

    Salvador Otazu, Roberto

    2014-01-01

    Este proyecto fin de carrera se propone dotar a comunidades indígenas de Fray Bartolomé de las Casas, Departamento de Alta Verapaz (Guatemala), de un mínimo de condiciones higiénico sanitarias básicas, como es el disponer de agua corriente. Se ha tomado como modelo a seguir la ampliación de la red de abastecimiento existente en San Pablo Comunja, a las comunidades de Chimenja, Esperanza Seamay y Nuevo Secapur. Se ampliarán el número de manantiales de abastecimiento (localización, aforos...

  3. Práticas de produção na indústria alimentar portuguesa

    OpenAIRE

    Oliveira, Maria; Silva, G. M.

    2017-01-01

    A qualidade é um dos fatores críticos na indústria alimentar (IA), resultante da legislação, das exigências dos consumidores e da concorrência e, também o critério mais importante para conseguir a lealdade dos consumidores (Dora, Kumar, Van Goubergen, Molnar & Gellynck, 2013). Alguns estudos empíricos na IA evidenciam melhorias da qualidade e da eficiência decorrentes da implementação de práticas lean (e.g., Scott, Wilcock & Kanetkar, 2009; Van Goubergen, Dora, Molnar & Gellynck, 2011). O...

  4. Migración retornada y juventud indígena (Zacualpa, Guatemala)

    OpenAIRE

    Ricardo Falla, S.J

    2008-01-01

    En este artículo resumo una investigación que acaba de ser publicada en forma de libro sobre la juventud indígena y la migración retornada en Zacualpa, Guatemala.1 De entrada advierto que los resultados de esta investigación reflejan la situación de principios de 2007. Ya se estaba enrareciendo entonces el ambiente con deportaciones masivas en los Estados Unidos, como fue la de las fábricas Swift el 12 de diciembre de 2006. Pero el repunte del número de deportaciones de2007 no se había sentid...

  5. A indústria de fertilizantes químicos no Brasil

    OpenAIRE

    Telles, Adalberto Franco Netto

    2014-01-01

    O presente estudo trata do desenvolvimento da Indústria de Fertilizantes Químicos no Brasil, especialmente a partir de 1950. Analisa neste período os condicionantes do crescimento da oferta de fertilizantes e de sua demanda. A ênfase dada, no tocante à oferta nacional de fertilizantes, recai sobre a estrutura industrial originada com a implantação do Programa Nacional de Fertilizantes e Calcário Agrícola, subprograma do II Plano Nacional de Desenvolvimento, e seu ajustamento à crise setorial ...

  6. Pluralismo jurídico: derecho indígena y justicia nacional

    OpenAIRE

    Leonello Bertini Chiriboga; Nancy Yáñez Fuenzalida

    2013-01-01

    A partir de bases doctrinarias y normativas se analizan los avances y retrocesos de la jurisprudencia chilena en relación al reconocimiento de la costumbreindígena, la justiciabilidad del derecho propio indígena y la aplicación de un enfoque de pluralismo jurídico. Existen algunos avances en la jurisprudencia –a partir de la vigencia del Convenio 169 de la OIT– en el reconocimiento del derecho de propiedad ancestral al agua; derechos de uso, aprovechamiento y protección de tierras, recursos n...

  7. Eficiência agronômica de rejeitos da indústria de fertilizantes fosfatados

    OpenAIRE

    Garcia, Luciana de Arruda [UNESP

    2014-01-01

    A produção de fertilizantes fosfatados solúveis gera muitos rejeitos, cujo aproveitamento não é possível pelos atuais métodos industriais, acarretando perdas elevadas de P no beneficiamento, através da subutilização dos depósitos de fosfato, representando, portanto, um bem mineral não utilizado e um problema ambiental preocupante, devido aos grandes volumes envolvidos. Neste contexto, o objetivo deste trabalho foi avaliar a eficiência agronômica de dois rejeitos da indústria de fertilizantes ...

  8. Bioaccumulation of 137Cs and 60Co by Helianthus annuus

    International Nuclear Information System (INIS)

    Hornik, M.; Pipiska, M.; Vrtoch, L.; Augustin, J.; Lesny, J.

    2005-01-01

    The 60 Co and 137 Cs bioaccumulation by Helianthus annuus L. was measured during 9 day cultivation at 20 ± 2 o C in hydroponic Hoagland medium. Previous starvation for K + and for NH 4 + 2.2 and 2.7 times, respectively, enhanced 137 Cs uptake rate. Previous cultivation in surplus of K + ions 50 mmol·l -1 has no effect on 137 Cs bioaccumulation rate. Both 137 Cs and 60 Co bioaccumulation significantly increase with dilution of basic Hoagland medium up to 1:7 for caesium and up to 1:3 for cobalt followed by mild decrease at higher dilutions. Root to shoot specific 137 Cs radioactivity ratio (Bq.g -1 /Bq·g -1 , fresh wt.) increased with dilution from 1.46 to 9.6-9.8. The values root to shoot specific radioactivity ratio for 60 Co were less dependent on the nutrient concentrations and were within the range 5.7 to 8.5. 137 Cs was localized mainly in young leaves (30%) and roots (39%) and 60 Co mainly in roots (67%) and leaves (20%). Obtained data showed less sensitivity of 60 Co uptake by sunflower on nutrient concentration in hydroponic media. (author)

  9. Performance verification tests of JT-60SA CS model coil

    Energy Technology Data Exchange (ETDEWEB)

    Obana, Tetsuhiro, E-mail: obana.tetsuhiro@LHD.nifs.ac.jp [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Murakami, Haruyuki [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan); Takahata, Kazuya; Hamaguchi, Shinji; Chikaraishi, Hirotaka; Mito, Toshiyuki; Imagawa, Shinsaku [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292 (Japan); Kizu, Kaname; Natsume, Kyohei; Yoshida, Kiyoshi [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki 311-0193 (Japan)

    2015-11-15

    Highlights: • The performance of the JT-60SA CS model coil was verified. • The CS model coil comprised a quad-pancake wound with a Nb{sub 3}Sn CIC conductor. • The CS model coil met the design requirements. - Abstract: As a final check of the coil manufacturing method of the JT-60 Super Advanced (JT-60SA) central solenoid (CS), we verified the performance of a CS model coil. The model coil comprised a quad-pancake wound with a Nb{sub 3}Sn cable-in-conduit conductor. Measurements of the critical current, joint resistance, pressure drop, and magnetic field were conducted in the verification tests. In the critical-current measurement, the critical current of the model coil coincided with the estimation derived from a strain of −0.62% for the Nb{sub 3}Sn strands. As a result, critical-current degradation caused by the coil manufacturing process was not observed. The results of the performance verification tests indicate that the model coil met the design requirements. Consequently, the manufacturing process of the JT-60SA CS was established.

  10. Performance Evaluation of the Sysmex CS-5100 Automated Coagulation Analyzer.

    Science.gov (United States)

    Chen, Liming; Chen, Yu

    2015-01-01

    Coagulation testing is widely applied clinically, and laboratories increasingly demand automated coagulation analyzers with short turn-around times and high-throughput. The purpose of this study was to evaluate the performance of the Sysmex CS-5100 automated coagulation analyzer for routine use in a clinical laboratory. The prothrombin time (PT), international normalized ratio (INR), activated partial thromboplastin time (APTT), fibrinogen (Fbg), and D-dimer were compared between the Sysmex CS-5100 and Sysmex CA-7000 analyzers, and the imprecision, comparison, throughput, STAT function, and performance for abnormal samples were measured in each. The within-run and between-run coefficients of variation (CV) for the PT, APTT, INR, and D-dimer analyses showed excellent results both in the normal and pathologic ranges. The correlation coefficients between the Sysmex CS-5100 and Sysmex CA-7000 were highly correlated. The throughput of the Sysmex CS-5100 was faster than that of the Sysmex CA-7000. There was no interference at all by total bilirubin concentrations and triglyceride concentrations in the Sysmex CS-5100 analyzer. We demonstrated that the Sysmex CS-5100 performs with satisfactory imprecision and is well suited for coagulation analysis in laboratories processing large sample numbers and icteric and lipemic samples.

  11. Cs-137 and Sr-90 level in diary products

    International Nuclear Information System (INIS)

    Petukhov, V.L.; Dukhanov, Y.A.; Sevryuk, I.Z.; Patrashkov, S.A.; Korotkevich, O.S.; Gorb, T.S.; Petukhov, I.V.

    2003-01-01

    About 70% of radioactive substances fell on the territory of the Byelorussian Republic after the Chernobyl Atom Power Station Disaster. Cs-137 and Sr-90 accumulation dynamics was studied in milk of the cows from the highest polluted Braginsky area. 408 milk samples of Black and White cows were investigated. In 1995 average Cs-137 and Sr-90 levels were 61.00 and 3.73 Bk/dm 3 respectively. Cs-137 and Sr-90 levels exceeded Byelorussian Republic upper limits RDU - 96 in 10 and 50% of milk samples respectively. After 5 years (by 2000) Cs-137 and Sr-90 levels had become almost 3 and 2 times less (21.70 Bk/dm 3 and 1.72 Bk/dm 3 respectively). Cs-137 and Sr-90 levels exceeded RDU - 96 in 1.5 and 5.5% of milk samples respectively. In the same periods Cs-137 and Sr-90 levels were 7 and 2 times higher than the similar indexes in the relatively clean Novosibirsk area. Thus, radioactive element levels in milk of Black and White cows of the Byelorussian Republic decreased significantly for the past years. (authors)

  12. Transfer of 137Cs through the food chain to man

    International Nuclear Information System (INIS)

    Evans, C.; Bennett, B.G.

    1976-10-01

    Deposition, concentrations in diet, and body burdens of 137 Cs have been measured since 1954 at various sites throughout the world. This report is a compilation and updating of various fallout 137 Cs measurements and an interpretation of transfer properties of 137 Cs from deposition to diet and from diet to man. An empirical model is used to correlate deposition and diet data. Direct foliar contamination, stored food supplies, and uptake from soil contribute to the dietary levels of 137 Cs. The accumulation of 137 Cs by man is described by a single exponential model. The inferred biological half-times, 200 to 400 days, are somewhat greater than the half-time of about 100 days obtained from shorter term studies. Differences in body burdens due to sex, age, and weight are discussed. During the period 1954 to 1974, the internal dose from fallout 137 Cs, based on average body burdens, is estimated to be 4 to 5 percent of the 21 year radiation dose from 40 K

  13. La participación de las comunidades indígenas migrantes en el marco del Consejo Consultivo Indígena en León, Guanajuato

    OpenAIRE

    Yolanda de León-de Santiago; Antonino Santiago-Isidro

    2016-01-01

    En México, a lo largo de la historia, se ha ignorado el aporte de los pueblos indígenas y se ha omitido su punto de vista para la toma de decisiones en asuntos que los atañe, no fue sino hasta el levantamiento Zapatista que la cuestión indígena despertó interés. En el estado de Guanajuato, la población indígena es menor en comparación con otros estados y, sin embargo, está conformada por un mosaico de culturas, algunas nativas y otras migrantes. A pesar de esto, la presencia de poblac...

  14. The Two Translationally Controlled Tumor Protein Genes, CsTCTP1 and CsTCTP2, Are Negative Modulators in the Cucumis sativus Defense Response to Sphaerotheca fuliginea

    Directory of Open Access Journals (Sweden)

    Xiangnan Meng

    2018-04-01

    Full Text Available Pathogen stress often significantly decreases cucumber production. However, knowledge regarding the molecular mechanism and signals of cucumber disease resistance is far from complete. Here, we report two translationally controlled tumor protein genes, CsTCTP1 and CsTCTP2, that are both negative modulators in the Cucumis sativus defense response to Sphaerotheca fuliginea. Subcellular localization analysis showed that CsTCTP1 and CsTCTP2 were both localized in the cytoplasm. Expression analysis indicated that the transcript levels of CsTCTP1 and CsTCTP2 were linked to the degree of cucumber resistance to S. fuliginea. Transient overexpression of either CsTCTP1 or CsTCTP2 in cucumber cotyledons impaired resistance to S. fuliginea, whereas silencing of either CsTCTP1 or CsTCTP2 enhanced cucumber resistance to S. fuliginea. The relationship of several defense-related genes and ABA and target of rapamycin (TOR signaling pathway-related genes to the overexpressing and silencing of CsTCTP1/CsTCTP2 in non-infested cucumber plants was investigated. The results indicated that CsTCTP1 participates in the defense response to S. fuliginea by regulating the expression of certain defense-associated genes and/or ABA signaling pathway-associated genes, and CsTCTP2 participates through regulating the expression of TOR signaling pathway-associated genes. Our findings will guide enhancing the resistance of cucumber to powdery mildew.

  15. The distribution of {sup 137}Cs, K, Rb and Cs in plants in a Sphagnum-dominated peatland in eastern central Sweden

    Energy Technology Data Exchange (ETDEWEB)

    Vinichuk, M., E-mail: mykhailo.vinichuk@mark.slu.s [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7014, SE-750 07 Uppsala (Sweden); Department of Ecology, Zhytomyr State Technological University, 103 Chernyakhovsky Street, 10005 Zhytomyr (Ukraine); Johanson, K.J. [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7014, SE-750 07 Uppsala (Sweden); Rydin, H. [Department of Plant Ecology, Evolutionary Biology Centre, Uppsala University, Norbyvaegen 18D, SE-752 36 Uppsala (Sweden); Rosen, K. [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, P.O. Box 7014, SE-750 07 Uppsala (Sweden)

    2010-02-15

    We record the distribution of {sup 137}Cs, K, Rb and Cs within individual Sphagnum plants (down to 20 cm depth) as well as {sup 137}Cs in vascular plants growing on a peatland in eastern central Sweden. In Calluna vulgaris{sup 137}Cs was mainly located within the green parts, whereas Andromeda polifolia, Eriophorum vaginatum and Vaccinium oxycoccos showed higher {sup 137}Cs activity in roots. Carex rostrata and Menyanthes trifoliata showed variable distribution of {sup 137}Cs within the plants. The patterns of {sup 137}Cs activity concentration distribution as well as K, Rb and Cs concentrations within individual Sphagnum plants were rather similar and were usually highest in the capitula and/or in the subapical segments and lowest in the lower dead segments, which suggests continuous relocation of those elements to the actively growing apical part. The {sup 137}Cs and K showed relatively weak correlations, especially in capitula and living green segments (0-10 cm) of the plant (r = 0.50). The strongest correlations were revealed between {sup 137}Cs and Rb (r = 0.89), and between {sup 137}Cs and stable Cs (r = 0.84). This suggests similarities between {sup 137}Cs and Rb in uptake and relocation within the Sphagnum, but that {sup 137}Cs differs from K.

  16. The distribution of 137Cs, K, Rb and Cs in plants in a Sphagnum-dominated peatland in eastern central Sweden

    International Nuclear Information System (INIS)

    Vinichuk, M.; Johanson, K.J.; Rydin, H.; Rosen, K.

    2010-01-01

    We record the distribution of 137 Cs, K, Rb and Cs within individual Sphagnum plants (down to 20 cm depth) as well as 137 Cs in vascular plants growing on a peatland in eastern central Sweden. In Calluna vulgaris 137 Cs was mainly located within the green parts, whereas Andromeda polifolia, Eriophorum vaginatum and Vaccinium oxycoccos showed higher 137 Cs activity in roots. Carex rostrata and Menyanthes trifoliata showed variable distribution of 137 Cs within the plants. The patterns of 137 Cs activity concentration distribution as well as K, Rb and Cs concentrations within individual Sphagnum plants were rather similar and were usually highest in the capitula and/or in the subapical segments and lowest in the lower dead segments, which suggests continuous relocation of those elements to the actively growing apical part. The 137 Cs and K showed relatively weak correlations, especially in capitula and living green segments (0-10 cm) of the plant (r = 0.50). The strongest correlations were revealed between 137 Cs and Rb (r = 0.89), and between 137 Cs and stable Cs (r = 0.84). This suggests similarities between 137 Cs and Rb in uptake and relocation within the Sphagnum, but that 137 Cs differs from K.

  17. The distribution of (137)Cs, K, Rb and Cs in plants in a Sphagnum-dominated peatland in eastern central Sweden.

    Science.gov (United States)

    Vinichuk, M; Johanson, K J; Rydin, H; Rosén, K

    2010-02-01

    We record the distribution of (137)Cs, K, Rb and Cs within individual Sphagnum plants (down to 20cm depth) as well as (137)Cs in vascular plants growing on a peatland in eastern central Sweden. In Calluna vulgaris(137)Cs was mainly located within the green parts, whereas Andromeda polifolia, Eriophorum vaginatum and Vaccinium oxycoccos showed higher (137)Cs activity in roots. Carex rostrata and Menyanthes trifoliata showed variable distribution of (137)Cs within the plants. The patterns of (137)Cs activity concentration distribution as well as K, Rb and Cs concentrations within individual Sphagnum plants were rather similar and were usually highest in the capitula and/or in the subapical segments and lowest in the lower dead segments, which suggests continuous relocation of those elements to the actively growing apical part. The (137)Cs and K showed relatively weak correlations, especially in capitula and living green segments (0-10cm) of the plant (r=0.50). The strongest correlations were revealed between (137)Cs and Rb (r=0.89), and between (137)Cs and stable Cs (r=0.84). This suggests similarities between (137)Cs and Rb in uptake and relocation within the Sphagnum, but that (137)Cs differs from K. Copyright 2009 Elsevier Ltd. All rights reserved.

  18. Uptake and distribution of 137Cs and stable Cs by microorganisms isolated from mushroom substrata in the Japanese forests

    International Nuclear Information System (INIS)

    Kuwahara, Chikako; Fukumoto, Atsushi; Kato, Fumio; Sugiyama, Hideo

    2004-01-01

    The pH values of wild mushroom substrata, the influence of pH in medium on the appearance frequencies of microorganisms from mushroom substrata, and growth and Cs uptake by several microorganisms were investigated. The results showed that the pH values of 42 mushroom substrata were slightly acidic. There was no remarkable difference in the appearance frequencies of filamentous actinomycetes and planktonic bacteria at pH 5, 6 and 7, except in the samples of mushroom substrata from Mt. Fuji. The values of Cs concentration ratio (CR) for microorganisms isolated from mushroom substrata and for mushrooms were almost the same level, suggesting that those microorganisms could take up Cs in substrata and reserve Cs in their cells. (author)

  19. Facile synthesis and characterization of CsPbBr3 and CsPb2Br5 ...

    Indian Academy of Sciences (India)

    2018-03-23

    Mar 23, 2018 ... All-inorganic caesium lead-halide perovskite CsPbBr3 and ... optoelectronic materials owing to their stabilities and highly efficient photoluminescence (PL). ... chemical tenability [2], hybrid organic–inorganic lead halide-.

  20. Energy- and temperature dependences of secondary electron emission of CsI- and CsBr layers doped with Cd

    International Nuclear Information System (INIS)

    Galij, P.V.; Tsal', N.A.

    1983-01-01

    The energy and temperature dependences of the secondary electron emission coefficient (SEEC) of CsI-Cd-, CsBr-Cd-, CsI-CsBr layers have been studied. The effect of bivalent cadmium impurity on the SEEC value is investigated. It is shown that implantation of small amounts of Cd 2+ impurity into the lattice of the initial monocrystals might increase the SEEC values of the layers. Temperature dependences (TD) of SEEC are measured and the possibility of comparing experimental results with the Dekker formula is analyzed. A conclusion is drawn that the Dekker model well describes the TD of SEEC of doped layers at temperatures T < or approximately 100 deg C. At elevated temperatures., along with secondary electron scattering on phonons, one should take into account their scattering on vacancies

  1. Comparison of CsI(Tl) and CsI(Na) partially slotted crystals for high-resolution SPECT imaging

    International Nuclear Information System (INIS)

    Giokaris, N.; Loudos, G.; Maintas, D.; Karabarbounis, A.; Lembesi, M.; Spanoudaki, V.; Stiliaris, E.; Boukis, S.; Sakellios, N.; Karakatsanis, N.; Gektin, A.; Boyarintsev, A.; Pedash, V.; Gayshan, V.

    2006-01-01

    Dedicated systems based on Position Sensitive Photomultiplier Tubes (PSPMTs) coupled to scintillators, have been used over the past years for the construction of compact systems, suitable for applications such as small animal imaging and small organs imaging. Most of the proposed systems are based on fully pixelized scintillators. Previous studies have shown that partially slotted scintillators offer a good compromise between cost, energy resolution and spatial resolution. In this work, the performance of two sets of CsI(Tl) and CsI(Na) partially slotted crystals is compared. Initial results show that CsI(Tl) scintillators are more suitable for gamma-ray detection, since their performance in terms of sensitivity, spatial and energy resolution is superior than that of CsI(Na)

  2. Seperation of CsCl from LiCl-CsCl molten salt by cold finger melt cryst allization

    Energy Technology Data Exchange (ETDEWEB)

    Versey, Joshua R. [Dept. of Chemical and Materials Engineering and Nuclear Engineering Program University of Idaho, Idaho (United States); Phongikaroon, Supathorn [Dept. of Mechanical and Nuclear Engineering Virginia Commonwealth University, Richmond (Korea, Republic of); Simpson, Michael F. [Dept. of Metallurgical Engineering University of Utah, Utah (Korea, Republic of)

    2014-06-15

    This study provides a fundamental understanding of a cold finger melt crystallization technique by exploring the heat and mass transfer processes of cold finger separation. A series of experiments were performed using a simplified LiCl-CsCl system by varying initial CsCl concentrations (1, 3, 5, and 7.5 wt%), cold finger cooling rates (7.4, 9.8, 12.3, and 14.9 L/min), and separation times (5, 10, 15, and 30 min). Results showed a potential recycling rate of 0.36 g/min with a purity of 0.33 wt% CsCl in LiCl. A CsCl concentrated drip formation was found to decrease crystal purity especially for smaller crystal formations. Dimensionless heat and mass transfer correlations showed that separation production is primarily influenced by convective transfer controlled by cooling gas flow rate, where correlations are more accurate for slower cooling gas flow rates.

  3. Physicochemical properties of the CsNO2-CsOH-H2O ternary system at 25 deg C

    International Nuclear Information System (INIS)

    Protsenko, P.I.; Medvedev, B.S.; Popova, T.B.

    1977-01-01

    Saturated solutions of the CsNO 2 - CsOH- H 2 O system have been studied at 25 deg C by the methods of solubility, viscosity, electric conductivity, refractometry and density. It is stated that no solid phase of a new composition is formed in the system. While adding hydroxide to the saturated solution of cesium nitride, a considerable salting-out of the latter takes place

  4. Thermal gravimetric analysis of the CsCuCl3, Cs2CuCl4 and Cs2CuCl4x2H2O crystals

    International Nuclear Information System (INIS)

    Soboleva, L.V.; Vasil'eva, M.G.

    1977-01-01

    The thermal characteristics of crystals of Cs 2 CuCl 4 , Cs 2 CuCl 4 x2H 2 O, and CsCuCl 3 were investigated thermogravimetrically. The derivatogram of the Cs 2 CuCl 4 crystal is characterized by the presence of a single endothermal effect at 505 deg C. The derivatogram of the Cs 2 CuCl 4 x2H 2 O crystal contains three endothermal effects: at 40, 135, and 480 deg C. The derivatogram of the CsCuCl 3 crystal shows the presence of two endothermal effects at 142 and 455 deg C. The thermogravimetric data on Cs 2 CuCl 4 and CsCuCl 3 crystals reveal crystal decomposition on melting; hence, these crystals cannot be grown from melts

  5. Aproximações do Movimento Indígena e os conflitos socioambientais: processos de resistência e violência a partir do olhar indígena

    Directory of Open Access Journals (Sweden)

    Maria da Graça Luderitz Hoefel

    2013-12-01

    Full Text Available Esta pesquisa documental busca identificar e analisar – a partir do olhar indígena – os processos de resistência, organização do Movimento Indígena e violência no contexto dos conflitos socioambientais indígenas, entre 2005 e 2012, vivenciados pelos povos Atikum, Kariri-Xocó, Potiguara, Pataxó Hã-Hã-Hãe e Truká, situados na região Nordeste do Brasil. Foram analisados 90 documentos aos quais aplicouse a matriz de análise de Hoefel et al. (2011. Nota-se que as cinco etnias enfrentam conflitos socioambientais semelhantes. Os assassinatos, atentados e perseguições às lideranças indígenas representam 43% do total de formas de violência identificadas, seguida pela apropriação de terras indígenas, que alcança 36%. A luta pelo território e a luta contra a violência – especialmente os homicídios e atentados – são as duas principais bandeiras de luta identificadas. Com relação às estratégias, o estudo indica que o acionamento do poder público (Executivo, Legislativo e Judiciário, as ocupações e denúncias na mídia caracterizam-se como as estratégias centrais adotadas nos processos de luta dos povos indígenas. Observa-se que a maioria dos conflitos são travados entre os povos indígenas e os grandes proprietários de terras, sinalizando, em verdade, uma disputa entre modelos de desenvolvimento e de sociedades absolutamente distintas. Nesse sentido, ressalta-se que a priorização da produção de commodities e de grandes obras de infraestrutura tem conduzido o Brasil a um processo paradoxal que, por um lado, favorece o crescimento do PIB e, por outro, aprofunda os conflitos socioambientais indígenas, acirra a violência e induz à redução de direitos constitucionais historicamente conquistados por estes povos.

  6. Educación, Identidad y Derechos como estrategias de desarrollo de los Pueblos Indígenas. II Decenio de los Pueblos Indígenas 2005-2015.

    OpenAIRE

    Gehrig, Rainer; Muñoz Sánchez, Práxedes

    2015-01-01

    A continuación presentamos en resumen los contenidos del libro en sus 15 capítulos divididos en tres partes temáticas. Estas deben entenderse como círculos concéntricos con sus solapamientos. Son como tres grandes hilos conductores de los capítulos desarrollados en esta publicación que abarca diferentes perspectivas: 1. Educación y cooperación como reto de Desarrollo comunitario en contextos indígenas; 2. Identidad cultural y Derechos de los Pueblos indígenas y 3. Interculturalidad, Evangeliz...

  7. Evaluation of Cs-134 and Cs-137 in sugar by non-destructive analysis

    Energy Technology Data Exchange (ETDEWEB)

    Correira, Filipe Lopes de Barros; Santos Júnior, José Araújo dos; Amaral, Romilton dos Santos; Santos, Josineide Marques do Nascimento; Medeiros, Nilson Vicente da Silva; Santos Junior, Otávio Pereira dos, E-mail: filipelbck@gmail.com, E-mail: jaraujo@ufpe.br, E-mail: romilton@ufpe.br, E-mail: josineide.santos@ufpe.br, E-mail: nilson.medeiros@ufpe.br, E-mail: otavio.santos@vitoria.ifpe.edu.br [Universidade Federal de Pernambuco (RAE/UFPE), Recife, PE (Brazil). Departamento de Energia Nuclear. Grupo de Radioecologia; Vieira, José Wilson, E-mail: jose.wilson59@uol.com.br [Instituto Federal de Pernambuco (IFPE), Recife (Brazil); Valois, Rhaiana Caminha, E-mail: rhaianavalois@hotmail.com [Colégio Militar do Recife, PE (Brazil)

    2017-07-01

    The spread of anthropogenic radioisotopes in the environment comes from nuclear tests and accidents that occurred in the past, which justifies constant monitoring, to guarantee the safety and control of the activities that involve these applications. Brazil, when exporting some food products, depending on the country of origin, a radiometric report is required, especially for sugar that has high world consumption and the possibility of contamination of the population, when radioisotope is present. Therefore, the investigation of the levels of Cs-134 and Cs-137 in sugar matrices is necessary to predict radioecological emergency situations. The National Nuclear Energy Commission, the agency that oversees nuclear applications in Brazil, With Resolution No. 102 of December 22, 2010 approved regulatory positions, including levels of action for food control, recommended to restrict the marketing of food products in Brazil. General, whose specific activity is higher than the limit of 1.0 kBq / kg for the said isotopes of cesium independently. Aiming for improvements in the analyzes that are already performed in the Laboratory of Radioecology and Environmental Control of the Department of Nuclear Energy of the Federal University of Pernambuco to assurance the quality of sugar marketed in Brazil, a standard procedure for the analysis of these radionuclides in this matrix was determined. High resolution gamma spectrometry with non-destructive analysis was used to perform the tests. Priority was given to parameters that directly influence the qualitative and quantitative analysis of these radioactive elements, such as calibration in energy and efficiency, resolution, influence of self-absorption, counting statistics directly associated with the time of analysis, influence of background radiation and geometry analysis. (author)

  8. Evaluation of Cs-134 and Cs-137 in sugar by non-destructive analysis

    International Nuclear Information System (INIS)

    Correira, Filipe Lopes de Barros; Santos Júnior, José Araújo dos; Amaral, Romilton dos Santos; Santos, Josineide Marques do Nascimento; Medeiros, Nilson Vicente da Silva; Santos Junior, Otávio Pereira dos; Valois, Rhaiana Caminha

    2017-01-01

    The spread of anthropogenic radioisotopes in the environment comes from nuclear tests and accidents that occurred in the past, which justifies constant monitoring, to guarantee the safety and control of the activities that involve these applications. Brazil, when exporting some food products, depending on the country of origin, a radiometric report is required, especially for sugar that has high world consumption and the possibility of contamination of the population, when radioisotope is present. Therefore, the investigation of the levels of Cs-134 and Cs-137 in sugar matrices is necessary to predict radioecological emergency situations. The National Nuclear Energy Commission, the agency that oversees nuclear applications in Brazil, With Resolution No. 102 of December 22, 2010 approved regulatory positions, including levels of action for food control, recommended to restrict the marketing of food products in Brazil. General, whose specific activity is higher than the limit of 1.0 kBq / kg for the said isotopes of cesium independently. Aiming for improvements in the analyzes that are already performed in the Laboratory of Radioecology and Environmental Control of the Department of Nuclear Energy of the Federal University of Pernambuco to assurance the quality of sugar marketed in Brazil, a standard procedure for the analysis of these radionuclides in this matrix was determined. High resolution gamma spectrometry with non-destructive analysis was used to perform the tests. Priority was given to parameters that directly influence the qualitative and quantitative analysis of these radioactive elements, such as calibration in energy and efficiency, resolution, influence of self-absorption, counting statistics directly associated with the time of analysis, influence of background radiation and geometry analysis. (author)

  9. Speciation of Cs-137 in fertilizers amended soils

    International Nuclear Information System (INIS)

    Mocanu, N.; Breban, D.C.

    1999-01-01

    One of the most used agricultural countermeasures to reduce the uptake of radionuclides from soil into plants is the chemical treatment of the soil with fertilizers. The distribution of a radionuclide between different physico chemical forms is essential to characterize its behaviour and the biological impact on the environment. To assess a radionuclide bioavailability to the soil-plant transfer, the chemical forms that are most relevant are the water soluble and exchangeable ones. Laboratory experiments were conducted to determine the potential modifications in time of the Cs-137 distribution in the two soil fractions, induced by the treatment with different K-based fertilizers. The two types of soil were selected taking into account their importance for the agricultural use in Romania. By the sequential extraction method the distribution of 137 Cs has been determined in the water soluble and exchangeable fractions separated from the soils after 1 day, 1 week, 1 month and 4 months, respectively. For the reference untreated soils, experimental data revealed that less than 1 percent of Cs-137 is associated to the water soluble fraction for both types of soil. Around 4 percents of the total amount of Cs-137 in the brown-reddish soil and 13 percents in the alluvial one were associated to the exchangeable fraction. The differences between the Cs-137 distribution are correlated to the higher content of dust and clay in the brown reddish soil, which are strong binders for Cs ions. The application of the two fertilizers releasing fast the K ions (KCl and potassium salt), determined from at the first moment after the contamination a reduction of the Cs-137 concentration in both fraction. The effect was most pronounced for the soluble fraction in the brown -reddish soil: with a factor of 8 in case of KCl treatment and 5 in case of potassium salt. For the others experimental cases the concentration of Cs-137 in both fractions was slightly reduced, with factors between (1

  10. An optical microscopy study of the swelling of wet-spun films of CsDNA as a function of hydration and CsCl concentration

    Science.gov (United States)

    Schwenker, Megan; Marlowe, Robert; Lee, Scott; Rupprecht, Allan

    2005-03-01

    Highly oriented, wet-spun films of DNA expand in the direction perpendicular to the helical axis as the hydration of the film is increased. CsDNA films with a high CsCl content show an unexpected shrinkage at a relative humidity of 92%. Our most recent experiments have been to measure the perpendicular dimension of CsDNA as a function of both hydration and concentration of CsCl. Our preliminary results show that no shrinkage is observed at low contents of CsCl, showing that the CsCl plays an integral role in the shrinkage phenomenon.

  11. Correlations between potassium, rubidium and cesium ({sup 133}Cs and {sup 137}Cs) in sporocarps of Suillus variegatus in a Swedish boreal forest

    Energy Technology Data Exchange (ETDEWEB)

    Vinichuk, M., E-mail: Mykhailo.Vinichuk@slu.s [Department of Soil and Environment, Swedish University of Agricultural Sciences, P.O. Box 7014, SE-750 07 Uppsala (Sweden); Department of Ecology, Zhytomyr State Technological University, 103 Cherniakhovsky Str., 10005 Zhytomyr (Ukraine); Rosen, K.; Johanson, K.J. [Department of Soil and Environment, Swedish University of Agricultural Sciences, P.O. Box 7014, SE-750 07 Uppsala (Sweden); Dahlberg, A. [Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, P.O. Box 7026, 750 07 Uppsala (Sweden)

    2011-04-15

    An analysis of sporocarps of ectomycorrhizal fungi Suillus variegatus assessed whether cesium ({sup 133}Cs and {sup 137}Cs) uptake was correlated with potassium (K) or rubidium (Rb) uptake. The question was whether intraspecific correlations of Rb, K and {sup 133}Cs mass concentrations with {sup 137}Cs activity concentrations in sporocarps were higher within, rather than among, different fungal species, and if genotypic origin of sporocarps within a population affected uptake and correlation. Sporocarps (n = 51) from a Swedish forest population affected by the fallout after the Chernobyl accident were studied. The concentrations were 31.9 {+-} 6.79 g kg{sup -1} for K (mean {+-} SD, dwt), 0.40 {+-} 0.09 g kg{sup -1} for Rb, 8.7 {+-} 4.36 mg kg{sup -1} for {sup 133}Cs and 63.7 {+-} 24.2 kBq kg{sup -1} for {sup 137}Cs. The mass concentrations of {sup 133}Cs correlated with {sup 137}Cs activity concentrations (r = 0.61). There was correlation between both {sup 133}Cs concentrations (r = 0.75) and {sup 137}Cs activity concentrations (r = 0.44) and Rb, but the {sup 137}Cs/{sup 133}Cs isotopic ratio negatively correlated with Rb concentration. Concentrations of K and Rb were weakly correlated (r = 0.51). The {sup 133}Cs mass concentrations, {sup 137}Cs activity concentrations and {sup 137}Cs/{sup 133}Cs isotopic ratios did not correlate with K concentrations. No differences between, within or, among genotypes in S. variegatus were found. This suggested the relationships between K, Rb, {sup 133}Cs and {sup 137}Cs in sporocarps of S. variegatus is similar to other fungal species. - Highlights: {yields} We studied uptake of Cs ({sup 133}Cs and {sup 137}Cs), K and Rb by Suillus variegates sporocarps. {yields} Genotypic origin of fungus did not affect uptake of studied elements (isotopes). {yields} Genotypic origin did not affect correlation between Cs ({sup 133}Cs and {sup 137}Cs), K and Rb.

  12. CsMYB5a and CsMYB5e from Camellia sinensis differentially regulate anthocyanin and proanthocyanidin biosynthesis.

    Science.gov (United States)

    Jiang, Xiaolan; Huang, Keyi; Zheng, Guangshun; Hou, Hua; Wang, Peiqiang; Jiang, Han; Zhao, Xuecheng; Li, Mingzhuo; Zhang, Shuxiang; Liu, Yajun; Gao, Liping; Zhao, Lei; Xia, Tao

    2018-05-01

    Tea is one of the most widely consumed nonalcoholic beverages worldwide. Polyphenols are nutritional compounds present in the leaves of tea plants. Although numerous genes are functionally characterized to encode enzymes that catalyze the formation of diverse polyphenolic metabolites, transcriptional regulation of those different pathways such as late steps of the proanthcoyanidin (PA) pathway remains unclear. In this study, using different tea transcriptome databases, we screened at least 140 R2R3-MYB transcription factors (TFs) and grouped them according to the basic function domains of the R2R3 MYB TF superfamily. Among 140 R2R3 TFs, CsMYB5a and CsMYB5e were chosen for analysis because they may be involved in PA biosynthesis regulation. CsMYB5a-overexpressing tobacco plants exhibited downregulated anthocyanin accumulation but a high polymeric PA content in the flowers. Overexpression of CsMYB5e in tobacco plants did not change the anthocyanin content but increased the dimethylaminocinnamaldehyde-stained PA content. RNA-seq and qRT-PCR analyses revealed that genes related to PA and anthocyanin biosynthesis pathways were markedly upregulated in both CsMYB5a- and CsMYB5e-overexpressing flowers. Three UGTs and four GSTs were identified as involved in PA and anthocyanin glycosylation and transportation in transgenic plants. These results provide new insights into the regulation of PA and anthocyanin biosynthesis in Camellia sinensis. Copyright © 2018 Elsevier B.V. All rights reserved.

  13. Analysis on the influence of forest soil characteristics on radioactive Cs infiltration and evaluation of residual radioactive Cs on surfaces.

    Science.gov (United States)

    Mori, Yoshitomo; Yoneda, Minoru; Shimada, Yoko; Fukutani, Satoshi; Ikegami, Maiko; Shimomura, Ryohei

    2018-03-29

    We investigated the depth profiles of radioactive Cs, ignition loss, and cation exchange capacity (CEC) in five types of forest soils sampled using scraper plates. We then simulated the monitored depth profiles in a compartment model, taking ignition loss as a parameter based on experimental results showing a positive correlation between ignition loss and the CEC. The calculated values were comparable with the monitored values, though some discrepancy was observed in the middle of the soil layer. Based on decontamination data on the surface dose rate and surface contamination concentration, we newly defined a surface residual index (SRI) to evaluate the residual radioactive Cs on surfaces. The SRI value tended to gradually decrease in forests and unpaved roads and was much smaller in forests and on unpaved roads than on paved roads. The radioactive Cs was assumed to have already infiltrated underground 18 months after the nuclear power plant accident, and the sinking was assumed to be ongoing. The SRI values measured on paved roads suggested that radioactive Cs remained on the surfaces, though a gradual infiltration was observed towards the end of the monitoring term. The SRI value is thought to be effective in grasping the rough condition of residual radioactive Cs quickly at sites of decontamination activity in the field. The SRI value may be serviceable for actual contamination works after further research is done to elucidate points such as the relation between the SRI and the infiltration of radioactive Cs in various types of objects.

  14. Elucidation and functional characterization of CsPSY and CsUGT promoters in Crocus sativus L.

    Science.gov (United States)

    Bhat, Archana; Mishra, Sonal; Kaul, Sanjana; Dhar, Manoj K

    2018-01-01

    The dried stigmas of Crocus sativus constitute the saffron, which is considered to be the costliest spice of the world. Saffron is valuable for its constituents, which are mainly apocarotenoids. In order to enhance the production of apocarotenoids, it is imperative to understand the regulation of apocarotenoid biosynthetic pathway. In C. sativus, although the pathway has been elucidated, the information regarding the regulation of the pathwaygenes is scanty. During the present investigation, the characterization of promoters regulating the expression of two important genes i.e. CsPSY and CsUGT was performed. We successfully cloned the promoters of both the genes, which were functionally characterized in Crocus sativus and Nicotiana tabaccum. In silico analysis of the promoters demonstrated the presence of several important cis regulatory elements responding tolight, hormonesand interaction with transcription factors (TFs). Further analysis suggested the regulation of CsPSY promoter by Abscisic acid (ABA) and that of CsUGT by Gibberellic acid (GA). In addition, we also observed ABA and GA mediated modulation in the expression of significant TFs and CsPSY and CsUGT transcripts. Overall, the study addresses issues related to regulation of key genes of apocarotenoid pathway in C.sativus.

  15. Luminescence properties of undoped CsCaCl3 and CsSrCl3 crystalline scintillators

    International Nuclear Information System (INIS)

    Fujimoto, Yutaka; Saeki, Keiichiro; Koshimizu, Masanori; Asai, Keisuke; Yanagida, Takayuki

    2015-01-01

    Intrinsic luminescence properties of undoped CsCaCl 3 and CsSrCl 3 crystalline scintillators were studied. The crystal samples were grown by a vertical Bridgman method. Photoluminescence spectra of the crystals showed Auger-free luminescence (AFL) at 310 nm and self-trapped emission (STE) at 400 nm for CsCaCl 3 and 465 nm for CsSrCl 3 , when vacuum ultraviolet (VUV) light at 84 nm and 160 nm excited the crystals. X-ray excited radioluminescence spectra of the crystals showed some emission bands in the 280-600 nm wavelength range, which are owing to AFL, STE, and other origins such as lattice defects and impurities. Scintillation light yield was 400-300 ph/MeV, and the principal scintillation decay time about 2.5 ns and 12 ns for CsCaCl 3 and 1.8 ns and 13 ns for CsSrCl 3 . (author)

  16. Pueblos indígenas, democracia y representación: los casos de Bolivia y Guatemala

    OpenAIRE

    Iguanzo, Isabel

    2011-01-01

    [ES] Este trabajo descriptivo estudia la representación de los intereses de los indígenas en la Cámara Baja en Bolivia (2006) y Guatemala (2008) a través de la distinción de actitudes y comportamiento, entre los que se consideran indígenas y no indígenas. El texto se sostiene en el análisis de las encuestas realizadas por Barómetro de las Américas del Proyecto de Opinión publica de América Latina (LAPOP) y las entrevistas a legisladores del Proyecto Elites Parlamentarias en América Latina. La...

  17. A inserção externa da indústria brasileira de defesa: 1975-2010

    OpenAIRE

    Moraes, Rodrigo Fracalossi de

    2012-01-01

    O texto analisa o histórico da inserção externa da indústria brasileira de defesa e o papel que o mercado externo desempenhou - e pode vir a desempenhar - para esta indústria. Demonstra-se que, para um país no qual as aquisições internas de equipamentos militares são relativamente baixas como o Brasil, as exportações desempenham papel essencial à manutenção de uma indústria de defesa economicamente viável - ou seja, que possa produzir itens com custos unitários não muito elevados e seja capaz...

  18. Crisis cafetalera y migración interna entre campesinos indígenas, en Huehuetla México

    Directory of Open Access Journals (Sweden)

    Alejandro Ortega Hernández

    2013-01-01

    Full Text Available La migración sigue siendo un fenómeno social presente en México, con diferentes niveles de intensidad. Para conocer este movimiento poblacional en una zona indígena totonaca se realizó un estudio en Huehuetla, Puebla, mediante una muestra estadística a 83 indígenas productores de café. Los resultados indican que entre los campesinos indígenas, la migración interna, proceso actualmente poco estudiado, se encuentra asociada con la crisis de precios que vive la cafeticultura desde hace más de una década. Las ciudades de México y Puebla se son los principales polos de atracción, en los cuales los totonacos encuentran trabajo y mejores ingresos, que los que actualmente la cafeticultura y los espacios rurales no les pueden ofrecer.

  19. De Chiapas a California. Experiencia migratoria y cambio cultural en jóvenes indígenas

    Directory of Open Access Journals (Sweden)

    Tania Cruz Salazar

    2016-12-01

    Full Text Available Documento, desde una perspectiva etnográfica, la experiencia migratoria internacional de jóvenes indígenas chiapanecos y sus adaptaciones culturales. Sostengo que la participación de la juventud indígena ha sido central para el desarrollo económico del estado, y esto tiene sus orígenes en la tradicional migración indígena interna (siglo xix y nacional (siglo xx protagonizada en su tiempo por quienes hoy son los abuelos o padres. Para las actuales generaciones, la migración internacional, aunque aún es una estrategia económica, ya no es temporal como lo fue al inicio, por lo que su estadía en los Estados Unidos les implica cambios a nivel subjetivo, comunitario y cultural. Es en estos panoramas que analizo aquello que cambia y permanece.

  20. El carácter reconstrutivo de la justicia indígena, en Chimborazo: perspectiva ética

    Directory of Open Access Journals (Sweden)

    Gerardo Miguel Nieves Loja

    2015-08-01

    Full Text Available Durante los últimos años en Ecuador, ha comenzado a hablarse de la “justicia indígena”. Los medios de comunicación, en la mayor parte de casos por su desconocimiento, hablaron de “linchamientos” y “ajusticiamientos”, como si se tratara de un acto de salvajismo primitivo que atenta los Derechos Humanos. La resolución de conflictos en la Justicia indígena, tiene instancias y procedimientos que conducen, a la reconstrucción individual y colectiva de la comunidad. Los procedimientos de la justicia indígena, los castigos y los rituales de sanación son reconstructivos, lo que muestra el ir más allá, respecto a la justicia ordinaria de occidente, que termina en la cárcel, o máximo en una experiencia de rehabilitación.

  1. Los pueblos indígenas y la reforma del Estado en América Latina

    Directory of Open Access Journals (Sweden)

    Willem Assies

    2002-01-01

    Full Text Available El reconocimiento constitucional de los derechos indígenas en América Latina, así como la ratificación del Convenio 169 de la OTI hacen surgir varios interrogantes. En este artículo examinamos algunas cuestiones en debate. Para contextualizar, iniciamos el artículo indicando la imbricación de las luchas indígenas en los procesos de reforma del Estado y de la economía, así como de democratización. Después exploramos las interrogantes acerca del reconocimiento del derecho propio del indígena, de sus “usos y costumbres” políticos y de sus territorios. Concluimos que el reconocimiento de una pluralidad de esferas públicas de distinta configuración es una precondición para la convivencia y el diálogo intercultural.

  2. Dora Mayer, los indígenas y la nación peruana a inicios del siglo XX

    Directory of Open Access Journals (Sweden)

    Zegarra Flórez, Margarita

    2009-06-01

    Full Text Available This article analyses the expositions that the journalist Dora Mayer did regarding the “indigenous question” and the Peruvian nation, in a stage of deep social conflicts that take place in a context of economic modernization sustained on pre-modern labor relationships and indigenous oppression. We reconstructed her vision on how the relation between the components of the Peruvian Nation had to be, her critics towards indigenous exclusion and her warnings on the repercussions that the latter one had. The main purpose is to think about the impact of the double formation on critical conscience of the public opinion, as well as on civic education of the indigenous people that Dora Mayer did in El Deber Pro- Indígena (1912-1917.

    En el artículo se abordan los planteamientos que la periodista Dora Mayer hiciera sobre la “cuestión indígena” y la nación peruana, en una etapa de profundos conflictos sociales surgidos en un entorno de modernización económica sustentada sobre relaciones laborales premodernas y opresión indígena. Reconstruimos su visión sobre cómo debía ser la relación entre los componentes de la nación peruana, sus críticas a la exclusión indígena y sus advertencias sobre las repercusiones disociadoras que ésta última tenía. El propósito central es reflexionar sobre el impacto de la doble labor de formación de conciencia crítica de la opinión pública y de educación cívica de los indígenas, que llevó a cabo Dora Mayer desde El Deber Pro-Indígena (1912-1917.

  3. SPINS-IND: Pellet injector for fuelling of magnetically confined fusion systems

    Science.gov (United States)

    Gangradey, R.; Mishra, J.; Mukherjee, S.; Panchal, P.; Nayak, P.; Agarwal, J.; Saxena, Y. C.

    2017-06-01

    Using a Gifford-McMahon cycle cryocooler based refrigeration system, a single barrel hydrogen pellet injection (SPINS-IND) system is indigenously developed at Institute for Plasma Research, India. The injector is based on a pipe gun concept, where a pellet formed in situ in the gun barrel is accelerated to high speed using high pressure light propellant gas. The pellet size is decided by considering the Greenwald density limit and its speed is decided by considering a neutral gas shielding model based scaling law. The pellet shape is cylindrical of dimension (1.6 mm ℓ × 1.8 mm φ). For pellet ejection and acceleration, a fast opening valve of short opening duration is installed at the breech of the barrel. A three-stage differential pumping system is used to restrict the flow of the propellant gas into the plasma vacuum vessel. Diagnostic systems such as light gate and fast imaging camera (240 000 frames/s) are employed to measure the pellet speed and size, respectively. A trigger circuit and a programmable logic controller based integrated control system developed on LabVIEW enables to control the pellet injector remotely. Using helium as a propellant gas, the pellet speed is varied in the range 650 m/s-800 m/s. The reliability of pellet formation and ejection is found to be more than 95%. This paper describes the details of SPINS-IND and its test results.

  4. Mapeamento de conhecimento na plataforma Scopus: um estudo sobre a indústria criativa

    Directory of Open Access Journals (Sweden)

    Cristiano Max Pereira Pinheiro

    2015-05-01

    Full Text Available Buscando destacar o momento oportuno à compreensão do tema, este trabalho visa apresentar um mapeamento da produção científica no domínio da Indústria Criativa, através de uma proposta de mineração de textos científicos na base de dados Scopus, fundamentada em métodos bibliométricos. Para o desenvolvimento teórico da pesquisa, são utilizados autores como Howkins (2002, Deheinzelin (2011, Reis (2012, Prodanov e Freitas (2013, Hauenstein (2008, Vanti (2006, M. Hayashi, Faria e C. Hayashi (2013. Ao fim do estudo, destaca-se que, através dos critérios estabelecidos, o levantamento realizado apontou 933 publicações na área de Indústria Criativa. Ressalta-se, ainda, outros resultados quantitativos, analisados seguindo categorias com maior número de publicações, como: ano (2013, periódico (International Journal of Cultural Policy, autor (C. Gibson, instituição de ensino (Queensland University, país (Reino Unido e área de assunto (Ciências Sociais.

  5. Marketing verde e práticas socioambientais nas indústrias do Paraná

    Directory of Open Access Journals (Sweden)

    Valéria Neder Lopes

    2014-03-01

    Full Text Available A preocupação das empresas com o meio ambiente e com todas as questões sociais envolvidas em seu processo tem se tornado uma constante nos últimos tempos. Devido a isso, estão surgindo novas formas de administrar os recursos disponíveis. Nesse contexto, enquadra-se o marketing verde que deve estar pautado em práticas ambientalmente corretas, com o intuito de gerar produtos e serviços mais sustentáveis, fortalecendo a imagem das empresas e diferenciando suas marcas no mercado. O intuito neste trabalho foi verificar se as grandes indústrias do Paraná estão se utilizando das práticas de marketing verde e se mantêm projetos de gestão socioambiental. Para atender a tais objetivos, elaborou-se uma pesquisa descritiva e quantitativa com 48 grandes empresas cadastradas na Federação das Indústrias do Paraná. Os resultados obtidos indicam que a maior parte das empresas possui departamento de marketing formalizado, mantém sistemas de gestão ambiental e utiliza moderadamente práticas de marketing verde.

  6. Pueblos indígenas, Estado y Territorio en tiempos interculturales en la provincia de Salta

    Directory of Open Access Journals (Sweden)

    Mariana Andrea Schmidt

    2011-12-01

    Full Text Available La configuración del Estado argentino hacia fines del siglo XIX y principios del XX tuvo como uno de sus móviles principales la eliminación, asimilación e invisibilización de los pueblos indígenas. En las últimas décadas del siglo XX, se ha pasado de una política de invisibilización y homogeneización a otra de visibilización y reconocimiento de la diversidad cultural, promoviéndose la diversidad territorial, cultural y lingüística acallada durante décadas. El objetivo del presente artículo es indagar en las características asumidas por estos procesos en la provincia de Salta. Partiendo de considerar al Chaco salteño como territorio históricamente imaginado como indígena, interesa pensar cómo juegan estos imaginarios territoriales a la hora de diseñar e implementar políticas públicas para este territorio y su población.

  7. Turismo rural y desarrollo territorial en espacios indígenas de México

    Directory of Open Access Journals (Sweden)

    José Pedro Juárez Sánchez

    2009-01-01

    Full Text Available México es uno de los principales productores de café a escala mundial, lo que genera una gran cantidad de divisas al país. Sin embargo, es producido en su mayoría por indígenas en pequeñas plantaciones y viven en condiciones de extrema pobreza. Esta situación se ha acentuado a raíz de las crisis recurrentes del cultivo. Este estudio se realizó en cuatro municipios con plantaciones de café, ubicados en la sierra Nororiente de Puebla, México. La investigación se centró en la posibilidad de impulsar el agroturismo en espacios marginados, con población pobre e indígena. Los resultados muestran que el 80 por ciento de los entrevistados desea participar en actividades agroturísticas. Se concluye que mediante el apoyo a este tipo de proyectos por parte de las autoridades gubernamentales, el agroturismo puede representar una actividad complementaria a la producción de café que proporcione recursos económicos y que permita contribuir al incremento y calidad de la producción y, consecuentemente, a mejorar las condiciones de vida de la familia campesina.

  8. Los mayas del altiplano: supervivencia indígena en Chiapas y Guatemala

    Directory of Open Access Journals (Sweden)

    Lovell, W. George

    2002-06-01

    Full Text Available En el contexto americano, pocos grupos indígenas han demostrado la capacidad de sobrevivir a lo largo de la historia como los mayas del altiplano. Hoy día en Chiapas existen más de un millón de indígenas mayas, un número que asciende a cinco o seis millones en el caso de Guatemala. Los pueblos mayas han respondido a la invasión y a la dominación para conservar elementos importantes de su cultura. Este artículo discute las formas en que los mayas del altiplano se han adaptado para sobrevivir a casi cinco siglos de conquista, identificando tres fases claves en su trayectoria histórica: (1 la experiencia colonial, que abarca los años entre 1524 y 1821; (2 una época de reforma y revolución, que corre de 1821 a 1954; y (3 un período de marginalización y descuido desde 1954 en adelante. Pese al desfío, los mayas del altiplano están equipados culturalmente para perdurar.

  9. Spatial Interaction Modeling to Identify Potentially Exposed Populations during RDD or IND Terrorism Incidents

    International Nuclear Information System (INIS)

    Regens, J.L.; Gunter, J.T.; Gupta, S.

    2009-01-01

    Homeland Security Presidential Directive no.5 (HSPD-5) Management of Domestic Incidents and Department of Homeland Security (DHS) Planning Guidance for Protection and Recovery Following Radiological Dispersal Device (RDD) and Improvised Nuclear Device (IND) Incidents underscore the need to delineate radiological emergency guidance applicable to remedial action and recovery following an RDD or IND incident. Rapid delineation of the population potentially exposed to ionizing radiation from fallout during terrorist incidents involving RDDs or low-yield nuclear devices (≤ 20 KT) is necessary for effective medical response and incident management as part of the recovery process. This paper illustrates the application of spatial interaction models to allocate population data for a representative U.S. urban area (≅1.3M people; 1,612.27 km 2 area) at a geographical scale relevant for accurately estimating risk given dose concentrations. Estimated total dose equivalents (TEDE) are calculated for isopleths moving away from the detonation point for typical release scenarios. Population is estimated within the TEDE zones using Euclidean distances between zip code polygon centroids generated in ArcGIS version 9.1 with distance decay determined by regression analysis to apportion origin-destination pairs to a population count and density matrix on a spatial basis for daytime and night-time release scenarios. (authors)

  10. Bravura Indômita: entre a fábula e a trama

    Directory of Open Access Journals (Sweden)

    Sharmilla O'hana Rodrigues da Silva

    2012-05-01

    Full Text Available Neste artigo, analisam-se o romance Bravura Indômita, escrito por Charles Portis e publicado em 1968, e suas duas versões para o cinema, realizadas em 1969 e em 2010. Parte-se dos conceitos de fábula e trama – também conhecidos como fábula e enredo, narração e mostração, estória e discurso – que indicam que várias narrativas podem ser criadas a partir de uma única. Usam-se os estudos desenvolvidos por Seymour Chatman, Umberto Eco, Hélio Guimarães, Linda Hutcheon, Linda Seger, Ismail Xavier, André Gaudreault e François Jost para entender como estes conceitos funcionam na relação entre literatura e cinema. Para reflexão sobre os dois filmes, recorrem-se as resenhas publicadas por Isabela Boscov, Yuri Celico, Thiago M. Correia, Marcelo Hessel, André Sollito e Rubens Ewald Filho. Percebe-se que a adaptação é um processo de reconstrução textual em que o indivíduo insere suas experiências pessoais e sociais. Logo, as duas versões fílmicas de Bravura Indômita se configuram como interpretações de diferentes leitores – neste caso, os cineastas Henry Hathaway e Joel e Ethan Coen.

  11. Exact capture probability analysis of GSC receivers over i.n.d. Rayleigh fading channels

    KAUST Repository

    Nam, Sungsik

    2013-07-01

    A closed-form expression of the capture probability of generalized selection combining (GSC) RAKE receivers was introduced in [1]. The idea behind this new performance metric is to quantify how the remaining set of uncombined paths affects the overall performance both in terms of loss in power and increase in interference levels. In this previous work, the assumption was made that the fading is both independent and identically distributed from path to path. However, the average strength of each path is different in reality. In order to derive a closed-form expression of the capture probability over independent and non-identically distributed (i.n.d.) fading channels, we need to derive the joint statistics of ordered non-identical exponential variates. With this motivation in mind, we first provide in this paper some new order statistics results in terms of both moment generating function (MGF) and probability density function (PDF) expressions under an i.n.d. assumption and then derive a new exact closed-form expression for the capture probability GSC RAKE receivers in this more realistic scenario. © 2013 IEEE.

  12. First detection of foot-and-mouth disease virus O/Ind-2001d in Vietnam.

    Science.gov (United States)

    Vu, Le T; Long, Ngo T; Brito, Barbara; Stenfeldt, Carolina; Phuong, Nguyen T; Hoang, Bui H; Pauszek, Steven J; Hartwig, Ethan J; Smoliga, George R; Vu, Pham P; Quang, Le T V; Hung, Vo V; Tho, Nguyen D; Dong, Pham V; Minh, Phan Q; Bertram, Miranda; Fish, Ian H; Rodriguez, Luis L; Dung, Do H; Arzt, Jonathan

    2017-01-01

    In recent years, foot-and-mouth disease virus (FMDV) serotype O, topotype Middle East-South Asia (ME-SA), lineage Ind-2001d has spread from the Indian subcontinent to the Middle East, North Africa, and Southeast Asia. In the current report, we describe the first detection of this lineage in Vietnam in May, 2015 in Đắk Nông province. Three subsequent outbreaks caused by genetically related viruses occurred between May-October, 2015 after which the virus was not detected in clinical outbreaks for at least 15 subsequent months. The observed outbreaks affected (in chronological order): cattle in Đắk Nông province, pigs in Đắk Lắk province and Đắk Nông province, and cattle in Ninh Thuận province. The clinical syndromes associated with these outbreaks were consistent with typical FMD in the affected species. Overall attack rate on affected premises was 0.85 in pigs and 0.93 in cattle over the course of the outbreak. Amongst 378 pigs at risk on affected premises, 85 pigs died during the outbreaks; there were no deaths among cattle. The manner in which FMDV/O/ME-SA/Ind-2001d was introduced into Vietnam remains undetermined; however, movement of live cattle is the suspected route. This incursion has substantial implications for epidemiology and control of FMD in Southeast Asia.

  13. Tambos de Filosofía Indígenas: la perspectiva de la nosotridad

    Directory of Open Access Journals (Sweden)

    Guillermo Meza Salcedo

    2017-08-01

    Full Text Available La existencia de una filosofía al interior de las culturas ancestrales en América Latina ha sido una cuestión hasta hoy debatida, desde que se planteó la interrogante sobre el filosofar de estos pueblos originarios. La colonización epistemológica de la cultura occidental ha llevado a invisibilizar y/o negar la existencia de otros saberes y formas de vivir la vida de diferentes comunidades indígenas. La filosofía como ejercicio racional para responder a los grandes interrogantes de la vida, no es sólo una, no tiene patria, ni época, sino que son múltiples, multiculturales, y algunas de ellas comunales. Entre los indígenas hay una cosmovivencia y un pensamiento nosótrico que puede mejorar la calidad de vida en todos los ámbitos de la misma, que en esencia son relacionales. Dos tópicos darán la pauta en este trabajo: primero el de las cosmovisiones y filosofías amerindias y en segundo lugar el de la nosotridad entre los incas y mayas-tojolabales. Palabras clave: filosofía indígena, nosotridad, cosmovisión, América Latina. Tambos das filosofias indígena: a perspectiva da nosotridad Resumo A existência de uma filosofia dentro das culturas ancestrais da América Latina tem sido uma questão amplamente discutida até os últimos dias, desde que a questão sobre o filosofar dessas populações aumentou. A colonização epistemológica da cultura ocidental levou à negação da existência de outros meios de conhecimento e formas diferentes de viver a vida nas comunidades indígenas. Filosofia como exercício racional para responder a grandes questões na vida, não é apenas uma, não tem pátria ou tempo, mas são múltiplas, multiculturais e algumas delas são comunais. Entre a população indígena há uma experiência da cosmo -cosmovivencia- e um pensamento nosotrico que podem melhorar a qualidade de vida em todos os aspectos, que em essência são relacionais.. Dois tópicos principais são o ponto de partida deste trabalho

  14. Educación en el medio indígena de Chihuahua

    Directory of Open Access Journals (Sweden)

    Eva América Mayagoitia Padilla

    2011-04-01

    Full Text Available Este artículo forma parte del estudio de egresados de la Licenciatura en Educación Preescolar y Primaria para el Medio Indígena (LEPEPMI 90, que la Universidad Pedagógica Nacional Unidad 081 desarrolló con los estudiantes que concluyeron sus estudios en la subsede de Creel, Chih., durante el período comprendido entre 1995 y 2008. Se desarrolló con el propósito de analizar la dimensión formativa y el mercado laboral de los egresados a fin de retroalimentar el currículo. Se trata de un estudio descriptivo en el que se analizan algunas de las características de la práctica docente en el medio indígena, como uno de los contextos educativos de mayor complejidad, en virtud de que el logro de la calidad de la educación que reciben los niños y niñas está mediado por otros muchos factores que, sin duda, trascienden a las instituciones educativas.

  15. New Age en Colombia y la búsqueda de la espiritualidad indígena

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    Jean -Paul Sarrazin

    2012-01-01

    Full Text Available New A ge e N C olombi A y la búsqueda de la espiritualidad indígena J ean -P aul S arrazin i nve S tigador g ru P o de a ntro P ología S ocial , icanh P rofe S or de antro P ología en la u niver S idad de lo S a nde S jsarrazin@icanh.gov.co Resumen E l objetivo general de este artículo es mostrar algunas de las características más im portantes de lo que podemos llamar (no sin controversia el fenómeno New Age en Colombia. Aunque la literatura sobre este fenómeno en el país brilla por su ausencia, no es así en otros países latinoamericanos, y no se puede pensar que Colombia sea la excepción a la difusión de un fenómeno globalizado como este. Obviamente, en cada lugar lo New Age tiene particularidades locales; en Colombia una de ellas es que sus discursos y prácticas han contribuido a imaginar a los indígenas colombianos como poseedores de una cierta espiritualidad. En esta ideología se mezclan universalismo y esencialismo, pluralismo e individualismo, tradicionalismo e innovación, combi naciones aparentemente contradictorias que son analizadas aquí.

  16. Autobiografia e sujeito histórico indígena: considerações preliminares

    Directory of Open Access Journals (Sweden)

    Oscar Calavia Sáez

    2006-11-01

    Full Text Available A autobiografia, gênero central na bibliografia escrita por ou sobre indígenas nos Estados Unidos, está ausente na bibliografia equivalente no Brasil. Este trabalho questiona as razões desse contraste, resumindo análises sobre a peculiaridade cultural do gênero autobiográfico - profundamente vinculado à formação do indivíduo ocidental -, sobre sua possível tradução ameríndia e sobre as formas pelas quais o sujeito histórico indígena tem sido construído no Brasil.Autobiography, widely present in bibliography written by or about the indigenous people in the US, is seldom found in equivalent texts produced in Brazil. This article raises and discusses reasons for this contrast. It brings to light problems involving cultural peculiarities of the autobiographic genre - profoundly connected to the formation of the occidental individual -, the possibilities of its Amerindian translation and the specific aspects by which the historical indigenous subject has been constructed in Brazil.

  17. Prevalencia de diabetes mellitus e hiperlipidemias en indígenas otomíes

    Directory of Open Access Journals (Sweden)

    Alvarado-Osuna Claudia

    2001-01-01

    Full Text Available Objetivo. Determinar prevalencia y factores de riesgo de la diabetes mellitus (DM e hiperlipidemias en un grupo de indígenas otomíes de Querétaro. Material y métodos. Entre 1996 y 1997, en muestreo de conveniencia se trabajó con 91 indígenas, de 15 a 77 años de edad, de las comunidades de Yosphí y El Rincón, del estado de Querétaro, México. Se tomaron muestras sanguíneas en ayuno y se determinó la concentración de glucosa, colesterol y triglicéridos. Se realizó análisis estadístico para comparación entre sexos y grupos de edad. Resultados. La prevalencia de DM fue 4.4%, la de hipercolesterolemia 7.2%, y la de hipertrigliceridemia (HTG 26%. Las concentraciones promedio de glucosa (81.0±24.4 mg/dl y triglicéridos (157.4±88.9 mg/dl se incrementaron significativamente con la edad (p=0.0279 y phttp://www.insp.mx/salud/index.html

  18. Literatura, indústria cultural e formação humana

    Directory of Open Access Journals (Sweden)

    Fhiladelfio Joana Alves

    2003-01-01

    Full Text Available Este trabalho aborda questões referentes à literatura e aos produtos da indústria cultural, especialmente aos chamados romances "cor-de-rosa", focalizando as potencialidades de diferentes discursos na formação da subjetividade. As protagonistas dos romances O Quinze e As Três Marias, de Rachel de Queiroz são utilizadas como referência. Nesta perspectiva, evidencia-se a impregnação das criações ficcionais, atuando, de forma subconsciente e inconsciente, nas camadas profundas da personalidade, que pode em alguns casos, ampliar o conhecimento e a experiência humanos, aguçar os meios de expressão, despertar o senso crítico, mas em outros, reforçar a alienação da realidade. Conclui que enquanto a literatura oferece a possibilidade de libertar, os produtos da indústria cultural, ou seja, a literatura de massas, constituem um convite à alienação, ao conformismo, uma vez que tendem a inculcar estereótipos e preconceitos.

  19. Uptake and transfer factors of 137Cs by mushrooms

    International Nuclear Information System (INIS)

    Heinrich, G.

    1991-01-01

    The 137 Cs content of 118 species (668 samples) of higher fungi collected in the period from August 1984 to October 1989 at three different locations in Styria, Austria, was determined by gamma-spectrometry. The Cs-content of most mushrooms has been increasing since September 1986. In order to find out which factors determine the 137 Cs-contamination of mushrooms and the transfer-value soil to mushroom, the concentration of total and plant-available radiocesium in soils as well as the pH-value, the content of humus, clay, silt, sand, exchangeable cations, the composition of the clay minerals, and the particle size distribution of the soils of two different locations were examined. The higher the 137 Cs contamination of the soil, the thicker the layer of humus and the higher the content of humus, the lower the pH-value, and the lower the amount of essential cations, especially of K + , the higher the amount of 137 Cs plant-available will be. Therefore, the contamination of the mushrooms in the coniferous forest of Koralpenblick (1000 m) is higher than in the mixed forest at the Rosenberg around Graz at approx. 500 m height. Of 26 different species of mushrooms measured at both sites, only 61% show the highest TF-values soil to mushrooms also at the Koralpenblick. In the spruce forest at Koralpenblick there are many species of mushrooms with high 137 Cs-contamination which were not found at the Rosenberg. However, the properties of the species to which a mushroom belongs are more important than environmental conditions and soil properties. The transfer values of 40 K stay within narrow bounds, whereas those of 137 Cs differ widely. (orig.)

  20. Accurate absolute measurement of trapped Cs atoms in a MOT

    International Nuclear Information System (INIS)

    Talavera O, M.; Lopez R, M.; Carlos L, E. de; Jimenez S, S.

    2007-01-01

    A Cs-133 Magneto-Optical Trap (MOT) has been developed at the Time and Frequency Division of the Centro Nacional de Metrologia, CENAM, in Mexico. This MOT is part of a primary frequency standard based on ultra-cold Cs atoms, called CsF-1 clock, under development at CENAM. In this Cs MOT, we use the standard configuration (σ + - σ - ) 4-horizontal 2-vertical laser beams 1.9 cm in diameter, with 5 mW each. We use a 852 nm, 5 mW, DBR laser as a master laser which is stabilized by saturation spectroscopy. Emission linewidth of the master laser is l MHz. In order to amplify the light of the master laser, a 50 mW, 852 nm AlGaAs laser is used as slave laser. This slave laser is stabilized by light injection technique. A 12 MHz red shift of the light is performed by two double passes through two Acusto-Optic Modulators (AOMs). The optical part of the CENAMs MOT is very robust against mechanical vibration, acoustic noise and temperature changes in our laboratory, because none of our diode lasers use an extended cavity to reduce the linewidth. In this paper, we report results of our MOT characterization as a function of several operation parameters such as the intensity of laser beams, the laser beam diameter, the red shift of light, and the gradient of the magnetic field. We also report accurate absolute measurement of the number of Cs atoms trapped in our Cs MOT. We found up to 6 x 10 7 Cs atoms trapped in our MOT measured with an uncertainty no greater than 6.4%. (Author)

  1. Rapport de 2010 sur l'état de l'évaluation du développement en Inde ...

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

    En Inde, des données empiriques donnent à penser que l'évaluation du développement est en déclin, tant sur le plan du nombre que de la qualité des évaluations. Toutefois, il existe très peu de données écrites, voire aucune, sur la situation de l'évaluation en Inde, ni sur les facteurs en cause. Ce projet permettra donc de ...

  2. Educação Escolar Indígena - A prática docente dos Guarani Mbya

    Directory of Open Access Journals (Sweden)

    Janaína Aline dos Santos e Souza

    2017-12-01

    Full Text Available Este trabalho, vinculado a pesquisa de Mestrado em andamento, propõe o seguinte problema de pesquisa: o que o professorado indígena Guarani Mbya entende ser sua prática docente? Parte-se do pressuposto de que a educação escolar indígena, mais precisamente a partir de 1970, começa a ser ressignificada pelos próprios movimentos e organizações indígenas – reestruturando uma instituição tipicamente não-indígena, norteada até então por princípios de catequização, civilização, integração e preservação –, e que sua reconstrução junto aos projetos de futuro de cada etnia se constitui potencialmente como inovação educacional, superando seu caráter colonialista. Esta pesquisa pretende verificar se a visão que os professores e professoras indígenas têm de suas práticas se fundamenta ou não no modo de transmissão dos saberes tradicionais de sua cultura. No primeiro caso, tais práticas estariam inscritas na luta por reconhecimento e seriam adaptadas à atividade escolar. No entanto, as práticas docentes podem também ser mera reprodução do modelo de ensino escolar predominante, originalmente não-indígena, ainda que se trate oficialmente de uma escola diferenciada. Para examinar essas alternativas, vêm sendo realizadas entrevistas e observação direta na Escola Estadual IndígenaGwyra Pepo, localizada na região de Parelheiros, no município de São Paulo. As informações recolhidas serão analisadas por meio das bases teóricas das pesquisas antropológicas sobre os Guarani e sociológicas sobre inovação educacional, bem como pelo recurso às produções da etnologia ameríndia a respeito da educação escolar indígena

  3. Miradas encontradas: funcionarios reales, curas e indígenas en Yucatán durante el periodo colonial

    OpenAIRE

    Adriana Rocher Salas

    2010-01-01

    El presente texto estudia las diversas formas en que funcionarios civiles y eclesiásticos miraron a los indígenas de Yucatán durante el período colonial. La imagen que de los mayas construyeron quienes los gobernaron nos dará una visión más amplia de los diferentes esquemas impuestos para su gobierno espiritual y temporal y el carácter de la relación españoles-mayas yucatecos. Con este fin, como hilo conductor se tendrán los juicios construidos sobre la vida indígena respecto a tres aspectos ...

  4. Reglamentos indígenas en áreas protegidas de Bolivia: el caso del Pilón Lajas

    Directory of Open Access Journals (Sweden)

    José Francisco Márquez Guerra

    2016-01-01

    Full Text Available Durante los últimos años, los enfoques de planificación ecorregional de los programas de conservación han jugado un papel destacado en la configuración y gestión de los territorios indígenas en superposición o colindancia con las Áreas Protegidas en la Amazonía boliviana. Esto se evidencia en el apoyo técnico, jurídico y financiero brindado por las grandes ONG a los procesos participativos para la concepción, implementación y aplicación de instrumentos de gestión territorial y de recursos naturales indígenas como los estatutos y reglamentos comunitarios, entre otros. A partir de un trabajo etnográfico sobre las comunidades de la Reserva de Biosfera y Tierra Comunitaria de Origen Pilón Lajas, este texto describe cómo, en medio de estos procesos de juridificación de las instituciones indígenas, los actores de la conservación pretenden contribuir a la compatibilidad entre los estatutos y reglamentos indígenas y los instrumentos de gestión del Área Protegida. Encontramos que en esta operación de traducción de los objetivos de la conservación a la realidad local se movilizan dos conceptos de legitimación atribuidos a la condición indígena: la ancestralidad y la territorialidad. Los resultados muestran que con la utilización del primero, los actores de la conservación recrean una identidad ecológica para los indígenas, mientras que con el segundo recrean un espacio indígena con vocación de conservación. Se discute si los instrumentos resultantes de la compatibilización toman en cuenta la cosmología y el modo de existencia indígena en relación con los seres no humanos y el espacio.

  5. III. Grandes proyectos de inversión y grupos indígenas. Algunas experiencias en México

    OpenAIRE

    Hiernaux-Nicolas, Daniel

    2014-01-01

    Si bien el tema de los derechos indígenas se ha puesto nuevamente de moda por las reivindicaciones de grupos étnicos en México, particularmente en el contexto de los recientes eventos de Chiapas, numerosas cuentas faltan por saldar. Una de éstas, y no de las menores, es la relación entre los grupos indígenas en particular y campesinos en forma más general, y los llamados “grandes proyectos de desarrollo” cuyo mayor auge se dio entre los años sesenta y ochenta. Desde una perspectiva geográfica...

  6. Estado nutricional y aspectos alimentarios de mujeres indígenas del departamento de Presidente Hayes, Paraguay

    OpenAIRE

    Gloria Echagüe; Valentina Díaz; Laura Mendoza; Pamela Mongelos; Graciela Giménez; Malvina Paez; Florentina Laspina; Amalia Castro; María Isabel Rodríguez; Patricia Araújo; Wilberto Castro; Ramón Marecos; Santiago Evers; Gerardo Deluca; Alejandra Picconi

    2015-01-01

    Introducción: Las comunidades indígenas presentan un mayor riesgo de inseguridad alimentaria y malnutrición, menor disponibilidad de recursos, y una creciente dependencia de alimentos más baratos aunque con un alto grado de procesamiento. Objetivo: Identificar el estado nutricional y aspectos alimentarios en mujeres indígenas de tres comunidades del Departamento de Presidente Hayes, Chaco Paraguayo. Metodología: Estudio observacional de diseño transversal con componente analítico, que incluyó...

  7. Uma análise da Indústria do Entretenimento - Estudo de caso: a artista Beyoncé

    OpenAIRE

    Marques, Guilherme Vasconcelos

    2018-01-01

    O objetivo principal deste trabalho fornecer opções de diagnósticos acerca do papel da celebridade Beyoncé na indústria do entretenimento e na vida de mulheres negras no Brasil. Para faze-lo, utiliza-se os estudos trazidos acerca da Indústria Cultural, estabelecendo seus pontos fortes para a análise e suas limitações. A partir da introdução deste termo e de seu enquadramento dentro das Relações Internacionais, faz-se uma breve descrição acerca de parte do conteúdo produzido pela cantora Beyon...

  8. El emprendimiento de la mujer indígena campesina en Bolivia. Hacia una propuesta de desarrollo

    OpenAIRE

    Padilla-Meléndez, A.; Ciruela-Lorenzo, Antonio Manuel

    2015-01-01

    Objetivo y justificación: el emprendimiento indígena y la perspectiva de género en el emprendimiento han tenido una importancia creciente en la literatura en los últimos años. Se ha encontrado como la actividad emprendedora de la mujer difiere, en cuanto a motivaciones y circunstancias (en muchos casos más complicadas), de la del hombre. Además, y en relación al emprendimiento específicamente indígena, se aprecia una notable importancia del capital social para el desarrollo del mismo. Se p...

  9. Estrategias de resistencia indígena frente al desarrollo minero: La comunidad de Likantatay ante un posible traslado forzoso

    OpenAIRE

    Carrasco, Anita; Fernández, Eduardo

    2009-01-01

    Este artículo revisa el complejo panorama que enfrenta la comunidad indígena atacameña de Likantatay ante las consecuencias de un proyecto de desarrollo minero que implican el traslado forzoso de dicha comunidad si este proyecto se concreta. Se analizan las estrategias de resistencia indígena que presenta y/o puede presentar la comunidad así como los discursos y estrategias ideológicas elaborados por la corporación minera para desarrollar los intereses del capital. El análisis se enmarca dent...

  10. La diversidad cultural educativa indígena venezolana en el contexto socio-jurídico

    OpenAIRE

    Jacqueline Coromoto Guillén de Romero

    2013-01-01

    Desde el análisis metodológico jurídico-documental se realiza consideraciones sobre el tema de los pueblos indígenas, su reconocimiento y la educación intercultural bilingüe. Resaltando los postulados del Texto Constitucional de 1999, la Ley Orgánica de Pueblos y Comunidades Indígenas, los Convenios Internacionales conexos o relativos a la materia, suscritos por Venezuela y otras fuentes documentales. Se describe, el profundo cambio de perspectiva política, jurídica y cultural que reorienta l...

  11. Usos de la discursividad en los imaginarios simbólicos de la mujer indígena kichwa Chibuleo.

    OpenAIRE

    Ainaguano, Sisa Rosa; Bonilla Jami, Ana Lucía

    2005-01-01

    El presente trabajo investigativo está enmarcado en el contexto cultural y comunicativo, que bajo el tema “Usos de la Discursividad en los Imaginarios Simbólicos de la mujer indígena kichwa Chibuleo”, pretende conocer y analizar la riqueza de la Tradición Oral, como un sistema propio de comunicación de los pueblos indígenas, por ende constituye la raíz de su identidad. En la comunidad Chibuleo San Francisco, perteneciente al cantón Ambato y filial de la UNOPUCH (Unión de Organizaciones del Pu...

  12. Radiogenotoxicological effect of signal nuclide 134Cs on somatic and germ cells

    Institute of Scientific and Technical Information of China (English)

    ZhuShou-Peng; XiaFen; 等

    1997-01-01

    Chromosome at aberation rates in bone marrow cells and micronucleus formation in bone marrow polychromatic erythrocytes both rise with increase in radioactivities of 134Cs,and can be fitted to power functions of radioactivities of 134Cs.In spermatogonia 134Cs mainly induced chromatid breakage,and abnormalities in sperm can also be experessed as power functions of radioactivities of 134 Cs.

  13. Repression of CC16 by cigarette smoke (CS exposure.

    Directory of Open Access Journals (Sweden)

    Lingxiang Zhu

    Full Text Available Club (Clara Cell Secretory Protein (CCSP, or CC16 is produced mainly by non-ciliated airway epithelial cells including bronchiolar club cells and the change of its expression has been shown to associate with the progress and severity of Chronic Obstructive Pulmonary Disease (COPD. In an animal model, the lack of CC16 renders the animal susceptible to the tumorigenic effect of a major CS carcinogen. A recent population-based Tucson Epidemiological Study of Airway Obstructive Diseases (TESAOD has indicated that the low serum CC16 concentration is closely linked with the smoke-related mortality, particularly that driven by the lung cancer. However, the study of CC16 expression in well-defined smoke exposure models has been lacking, and there is no experimental support for the potential causal link between CC16 and CS-induced pathophysiological changes in the lung. In the present study, we have found that airway CC16 expression was significantly repressed in COPD patients, in monkey CS exposure model, and in CS-induced mouse model of COPD. Additionally, the lack of CC16 exacerbated airway inflammation and alveolar loss in the mouse model. Therefore, CC16 may play an important protective role in CS-related diseases.

  14. 137 Cs as a tracer of the Catalan current

    International Nuclear Information System (INIS)

    Sanchez-Cabeza, J.A.; Molero, J.; Merino, J.; Pujol, L.; Mitchell, P.I.

    1995-01-01

    A number of nuclear power installations located in the north-western Mediterranean (NWM) area are known to enhance 137 Cs levels in various marine compartments. The nuclear fuel reprocessing plant at Marcoule (France) has been reported to originate a significant increase of 137 Cs in Rhone river waters and sediments because of the discharge of low-level liquid radioactive waste. This radionuclide may be used as a tracer of oceanographic processes in the NWM; in fact, 137 Cs of Rhone river origin has been detected in the Gulf of Lions by several authors. The results reported in this work correspond to various transect experiments in waters of the Catalan Sea and show that: (i) surface salinity measurements confirmed the presence of the Catalan current in the Cap de Creus area; (ii) the 1991 Cap de Creus transect showed clearly the presence of 137 Cs above a baseline level of 4.3 ± 0.2 Bq.m -3 ; (iii) the Cap de Salou transect showed elevated levels towards the coast; (iv) the 1992 Cap de Creus transect showed no structure at all. Therefore, it was concluded that traces of 137 Cs from the Marcoule nuclear fuel reprocessing plant were transported by the Catalan current and were detectable in the Catalan Sea with a complex spatio-temporal structure. (authors). 25 refs., 4 figs

  15. Cs-137 concentrations in the muscles of Walleye Pollack

    International Nuclear Information System (INIS)

    Morita, T.; Yoshida, K.

    2003-01-01

    High concentrations of Cs-137 were detected in the muscles of Walleye Pollack (Theragra chalcogramm) collected from Kitamiyamato banks (sampling on 25 Jul. 2000), Kamui area (16 Oct. 2000) and Niigata coasts (31 Jan. 2001). The concentrations were 0.35 ± 0.01, 0.41 ± 0.01, and 0.63 ± 0.02 Bq/kg-wet, respectively. The average concentration in our past investigations was about 0.25 ± 0.01 Bq/kg-wet. Samples from other areas, the coat of Kushiro (8 May 2001), North Tishima (13 Nov. 2000) and the Sea of Okhotsk (6 May 2001), had the average concentrations. There were no such high concentrations of Cs-137 in other fish species collected from Kitamiyamato banks, Kamui area, and Niigata coasts. Fish samples with high concentrations all make the migration in the north of Japan sea. These results would indicated that samples took in Cs-137 elements from sea-water or foods on the migration route. Cs-137 concentrations in muscles of walleye pollack does not increase with the body lengths unlike other marine fishes, which enables the comparison of Cs-137 concentrations between areas without considering the body lengths. Walleye Pollac migrates in the large area in the sea of Japan and draws near other country except Japan. These habits make Walleye Pollac the excellent bio indicators to monitor oceanic radioactive pollution

  16. Theoretical investigation of the Cs*Hen>=3 exciplexes

    International Nuclear Information System (INIS)

    Zbiri, Mohamed; Daul, Claude

    2005-01-01

    The X 2 Σ 1/2 , A 2 Π 1/2 , B 2 Σ 1/2 , and A 2 Π 3/2 states of Cs*He n exciplexes, with n={3,...,9}, are studied using first principle density functional theory (DFT) formalism combined with the zeroth order regular approximation (ZORA). The zero points energies (ZPEs) E 0 for Cs*He n are calculated at a first step, in order to estimate the stability of the studied exciplexes. Relativistic calculations are carried out including spin-orbit effect (SO), and potential energy surfaces of Cs*He 6 are shown. The electronic distribution shapes of the studied molecules are also discussed, and their emission lines are evaluated and compared to a new discovered experimental emission spectra, which has been recently assigned, using a semi-empirical model, to Cs(AΠ 1/2 )He 7 . Our first principle calculation suggests that the discovered emission line is most probably due to a decay of Cs(AΠ 1/2 )He 6

  17. Plant remediation of soil contaminated with 137Cs

    International Nuclear Information System (INIS)

    Yang Juncheng; Zhang Jianfeng; Zhu Yongyi; Chen Jingjie; Mei Yong; Jiang Huimin

    2005-01-01

    A pot experiment was conducted to evaluate the bio-remediation of soils contaminated with 137 Cs. The selected plants are Cucurbita moschata Duchesne, Brassica chinensis L, Chloris virgata, Beta oulgaris L. Hongye, Beta oulgaris L. Dongshengye and Beta oulgaris L. The soils samples were taken from the paddy field, 2 km from the Dayawan nuclear power plant and Qinshan nuclear power plant, respectively, and cinnamon soil from the cultivated land in Beijing. The results show that all the employed species of plant have a higher accumulation to 137 Cs with the increased grade of the radioactivity of 137 Cs. A good correlation exist with the coefficient (r 2 ) of 0.9989. When the contaminated radioactivity of 137 Cs is in the same level the uptake of Cucurbita moschata Duchesne, Brassica chinensis L. and Chloris virgata increased with the decrease of pH value ranged 5.22-7.69. The ability of bioremediation in the orders were Chloris virgata, Brassica chinensis L., Beta oulgaris L. Hongye, Cucurbita moschata Duchesne, Beta oulgaris L. and Beta oulgaris L. Dongshengye, according to the comprehensive evaluation of transfer factor, specific activity of plant in dry weight of biomass and total absorption of 137 Cs by the individual plant in the same area. (authors)

  18. Photoelectron Emission Studies in CsBr at 257 nm

    International Nuclear Information System (INIS)

    Maldonado, Juan R.; Liu, Zhi; Sun, Yun; Pianetta, Piero A.; Pease, Fabian W.

    2006-01-01

    CsBr/Cr photocathodes were found [1,2] to meet the requirements of a multi-electron beam lithography system operating with a light energy of 4.8 eV (257nm). The fact that photoemission was observed with a light energy below the reported 7.3 eV band gap for CsBr was not understood. This paper presents experimental results on the presence of intra-band gap absorption sites (IBAS) in CsBr thin film photo electron emitters, and presents a model based on IBAS to explain the observed photoelectron emission behavior at energies below band gap. A fluorescence band centered at 330 nm with a FWHM of about 0.34 eV was observed in CsBr/Cr samples under 257 nm laser illumination which can be attributed to IBAS and agrees well with previously obtained synchrotron photoelectron spectra[1] from the valence band of CsBr films

  19. Energy transfer mechanism in CsI:Eu crystal

    International Nuclear Information System (INIS)

    Yakovlev, V.; Trefilova, L.; Karnaukhova, A.; Ovcharenko, N.

    2014-01-01

    This paper studies the scintillation process in CsI:Eu crystal exposed to the pulse electron irradiation (E=0.25 MeV, t 1/2 =15 ns and W=0.003 J/cm 2 ). It has been proved that the energy transfer from the lattice to Eu 2+ ions in CsI:Eu occurs through the re-absorption of STE emission. The proposed model rests on the following experimental facts: (1) the activator emission at 2.68 eV rises gradually after the decay of the excitation pulse even at temperature lower than 90 K when V k centers are immobile; (2) the rise time of 2.68 eV emission and the decay time of STE emission have the same temperature dependences at T=78–300 K; (3) the excitation spectrum of 2.68 eV emission overlaps the emission spectrum of STE. -- Highlights: • The scintillation process in CsI:Eu was studied under pulsed electron irradiation. • A model of the energy transfer from the lattice to Eu 2+ ions in CsI:Eu was proposed. • Eu 2+ ions in CsI:Eu reabsorb the π-emission of self-trapped excitons

  20. Cestaria e a história de vida dos artesãos indígenas da Terra Indígena Xapecó

    Directory of Open Access Journals (Sweden)

    Tanabi Sufiatti

    2013-03-01

    Full Text Available Cada povo culturalmente distinto possui habilidades e formas de materializar as necessidades do dia a dia ou dos rituais em diferentes artefatos: a cerâmica, a cestaria, os instrumentos musicais, os pequenos adornos, a arquitetura e toda a cultura material dos povos nativos estão carregados de princípios, objetivos, conhecimentos, história e valores. Com esta perspectiva fomos motivadas a desenvolver nosso trabalho de pesquisa com o povo Kaingang, especificamente, com artesãos da Terra Indígena Xapecó, em Ipuaçu - Brasil (SC, para conhecer sua história, sua cultura e seus saberes. Buscando contribuir para a valorização, divulgação e preservação de seus conhecimentos, inclusive os conhecimentos matemáticos – outras matemáticas dos povos culturalmente distintos. Desenvolvemos um estudo sobre saberes matemáticos em prática e cestarias dos Kaingang. Como resultado, apresentamos a seleção de grafismos sobre os quais apresentamos significados na cosmologia dualista kaingang e a identificação de propriedades geométricas da matemática escolar. O estudo foi desenvolvido através de pesquisa bibliográfica e de campo, com observação participante e teve como principal ferramenta teórica a etnomatemática.

  1. Knudsen cell--mass spectrometer studies of cesium--urania interactions. [Cs/sub 2/CO/sub 3/ or CsOH

    Energy Technology Data Exchange (ETDEWEB)

    Collins, J.L.; Osborne, M.F.; Malinauskas, A.P.; Lorenz, R.A.; Manning, S.R.

    1976-06-01

    Limited Knudsen cell--mass spectrometer studies were made of the partial pressures of cesium-containing species (assumed to be primarily Cs(g)) over Cs/sub 2/CO/sub 3/ and over phase equilibria involving UO/sub 2/ and probable Cs-U-O compounds formed from mixtures that initially contained either Cs/sub 2/CO/sub 3/-UO/sub 2/ or CsOH-UO/sub 2/. Although additional work is required to further define the equilibria involved, the data demonstrate unambiguously a significant reduction in cesium partial pressures due to probable Cs-U-O compound formation and indicate essentially identical behavior with either CsOH or Cs/sub 2/CO/sub 3/ as the starting material with UO/sub 2/.

  2. Coprecipitation of 137Cs and 85Sr microquantities with complex compound [M(18-crown-6)]BPH4 (M=Na+, Cs+) from neutral and alkaline solutions

    International Nuclear Information System (INIS)

    Konovalova, N.A.; Rumer, I.A.; Kulyukhin, S.A.

    2009-01-01

    The paper reports the possibility of joint separation of 137 Cs and 85 Sr from neutral and alkaline aqueous solutions by their coprecipitation with the solid phase of complex compounds [M(18-crown-6)]BPh 4 (M=Na + , Cs + ), as well as to study the coprecipitation of 137 Cs and 85 Sr with the solid phase CsBPh 4 . It is found that complex compounds [M(18-crown-6)]BPh 4 (M=Na + , Cs + ) increased the degree of 85 Sr separation from solutions virtually two- to threefold vs. CsBPh 4 . Chloride and nitrate were found to have hardly any impact on the coprecipitation of 137 Cs and 85 Sr with [M(18-crown-6)]BPh 4 (M = Na + , Cs + ). (orig.)

  3. Imbedded Nanocrystals of CsPbBr3 in Cs4 PbBr6 : Kinetics, Enhanced Oscillator Strength, and Application in Light-Emitting Diodes.

    Science.gov (United States)

    Xu, Junwei; Huang, Wenxiao; Li, Peiyun; Onken, Drew R; Dun, Chaochao; Guo, Yang; Ucer, Kamil B; Lu, Chang; Wang, Hongzhi; Geyer, Scott M; Williams, Richard T; Carroll, David L

    2017-11-01

    Solution-grown films of CsPbBr 3 nanocrystals imbedded in Cs 4 PbBr 6 are incorporated as the recombination layer in light-emitting diode (LED) structures. The kinetics at high carrier density of pure (extended) CsPbBr 3 and the nanoinclusion composite are measured and analyzed, indicating second-order kinetics in extended and mainly first-order kinetics in the confined CsPbBr 3 , respectively. Analysis of absorption strength of this all-perovskite, all-inorganic imbedded nanocrystal composite relative to pure CsPbBr 3 indicates enhanced oscillator strength consistent with earlier published attribution of the sub-nanosecond exciton radiative lifetime in nanoprecipitates of CsPbBr 3 in melt-grown CsBr host crystals and CsPbBr 3 evaporated films. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  4. Potential of monitoring nuclides with the epiphyte Tillandsia usneoides: Uptake and localization of 133Cs.

    Science.gov (United States)

    Li, Peng; Zheng, Guiling; Chen, Xuan; Pemberton, Robert

    2012-12-01

    Epiphytic Tillandsia plants are efficient air pollution biomonitors and traditionally used to monitor atmospheric heavy metal pollution, but rarely nuclides monitoring. Here we evaluated the potential of Tillandsia usneoides for monitoring (133)Cs and investigated if Cs was trapped by the plant external surface structures. The results showed that T. usneoides was able to survive relatively high Cs stress. With the increase of Cs solution concentration, the total of Cs in plants increased significantly, which suggests that the plants could accumulate Cs quickly and effectively. Therefore, T. usneoides has considerable potential for monitoring Cs polluted environments. In addition, scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS) analysis showed that Cs was detected in each type of cells in foliar trichomes, and the ratio of Cs in the internal disc cell was higher than that in ring cell and wing cell, which indicates that the mechanism of adsorption Cs in Tillandsia has an active component. Copyright © 2012. Published by Elsevier Inc.

  5. Experimental and computation method for determination of burnup and isotopic composition of the WWER-440 fuel using the 134Cs and 137Cs concentrations

    International Nuclear Information System (INIS)

    Babichev, B.A.; Kozharin, V.V.

    1990-01-01

    An experimental and computational method for determination of burnup and actinoid concentrations in WWER fuel elements using 134 Cs and 137 Cs concentrations in fuel is considered. It is shown that the error in calculation of fuel burnup and U and Pu isotope concentrations in WWER-440 fuel elements is 1.3-4.9% provided that the error in 134 Cs and 137 Cs concentration measurements does not exceed 1.7 and 1.2%. 9 refs.; 10 figs.; 4 tabs

  6. On the cesium-rich part of the Cs-Te phase diagram

    International Nuclear Information System (INIS)

    Boer, R. de; Cordfunke, E.H.P.

    1995-03-01

    The cesium-tellurium system in the region between 33 and 55 at.% Te has been investigated with X-ray diffraction and DSC. The existence of the compounds Cs 5 Te 3 and CsTe is demonstrated. The latter compound exhibits a structural transition at elevated temperature, as does the compound Cs 2 Te. The earlier reported compounds Cs 3 Te 2 and Cs 5 Te 4 do not exist. (orig.)

  7. Quasi-freestanding graphene on Ni(111) by Cs intercalation

    KAUST Repository

    Alattas, Maha Hassan Mohssen

    2016-05-26

    A possible approach to achieve quasi-freestanding graphene on a substrate for technological purpose is the intercalation of alkali metal atoms. Cs intercalation between graphene and Ni(111) therefore is investigated using density functional theory, incorporating van der Waals corrections. It is known that direct contact between graphene and Ni(111) perturbs the Dirac states. We find that Cs intercalation restores the linear dispersion characteristic of Dirac fermions, which agrees with experiments, but the Dirac cone is shifted to lower energy, i.e., the graphene sheet is n-doped. Cs intercalation therefore decouples the graphene sheet from the substrate except for a charge transfer. On the other hand, the spin polarization of Ni(111) does not extend through the intercalated atoms to the graphene sheet, for which we find virtually spin-degeneracy.

  8. Radiochemical determination of {sup 137}Cs in foods

    Energy Technology Data Exchange (ETDEWEB)

    Kastner, Geraldo F.; Ferreira, Andrea Vidal; Monteiro, Roberto P.G., E-mail: gfk@cdtn.br, E-mail: avf@cdtn.br, E-mail: rpgm@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2013-07-01

    A determination of radionuclides in food samples is important in commodities in order to attend to regulatory requirements for international trade. As a long-lived radioisotope of cesium, {sup 137}Cs is produced as a result of human nuclear activities and than its contamination level evaluation among others radionuclides in foods is necessary. A methodology for the determination of {sup 137}Cs in foods, pork and fish, is described. The procedures covered homogenization and freeze-drying of the samples. The {sup 137}Cs was measured by gamma spectrometry using Canberra 50% HPGe detector. The counting was carried out with Monte Carlo software for detection conditions optimization including geometry and chemical data information. A certified sample, SRM IAEA-375, was analyzed in order to evaluate the reliability of the method, and the results showed good agreement between the measured and certified values. (author)

  9. {sup 134}Cs emission probabilities determination by gamma spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, M.C.M. de, E-mail: candida@cnen.gov.br [Comissão Nacional de Energia Nuclear (DINOR/CNEN), Riode Janeiro, RJ (Brazil); Poledna, R.; Delgado, J.U.; Silva, R.L.; Araujo, M.T.; Silva, C.J. da [Instituto de Radioproteção e Dosimetria (LNMRI/IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2017-07-01

    The National Laboratory for Ionizing Radiation Metrology (LNMRI/IRD/CNEN) of Rio de Janeiro performed primary and secondary standardization of different radionuclides reaching satisfactory uncertainties. A solution of {sup 134}Cs radionuclide was purchased from commercial supplier to emission probabilities determination of some of its energies. {sup 134}Cs is a beta gamma emitter with 754 days of half-life. This radionuclide is used as standard in environmental, water and food control. It is also important to germanium detector calibration.The gamma emission probabilities (Pγ) were determined mainly for some energies of the {sup 134}Cs by efficiency curve method and the Pγ absolute uncertainties obtained were below 1% (k=1). (author)

  10. Bioaccumulation of Cs-137 and Co-57 by marine phytoplankton

    International Nuclear Information System (INIS)

    Heldal, H.E.; Stupakoff, I.; Fisher, N.S.

    1999-01-01

    Under controlled laboratory conditions we have examined the bioaccumulation of Cs-137 and Co-57 in three prymnesiophytes, the coccolithophorid Emiliania huxleyi and the non-calcareous species Isochrysis galbana and Phaeocystis globosa, and two diatoms Skeletonema costatum and Thalassiosira pseudonana. We measured uptake in growing and non-growing cells, and determined concentration factors on both volume and dry weight basis. For Co-57 uptake in non-growing cells, volume concentration factors (VCF) at equilibrium ranged from 0.2 * 10 3 for Emiliana huxleyi to 4 * 10 3 for the diatom Thalassiosira pseudonana. For Cs-137 uptake in non-growing cells the VCFs were close to zero. The results suggest that, in contrast to Co, the cycling and bioaccumulation in animals of Cs in marine systems is unlikely to be affected by primary producers. (au)

  11. Medical management of the victims of Goiana 137 Cs accident

    International Nuclear Information System (INIS)

    Brandao-Mello, C.E.; Farina, R.; Oliveira, A.R.; Valverde, N.J.

    1989-01-01

    In September 1987, a radiation accident happened in Gioania due to the theft of a shielded source of 137 Cs. Fifty persons were involved showing whole-body and local acute irradiation and also external and/or internal contamination mainly due to ingestion or absorption of 137 Cs. Fourteen of fifty developed severe bone marrow depression characterized by neutropenia and thrombocytopenia. None were submitted to bone marrow transplantation. Eight of fourteen received intravenously GM-CSF. Four of the fourteen died due to hemorrhage and infection. For those with significant internal contamination, Prussian blue was administered (1.5 to 10.0 gm/per day). Besides blue, other measures were taken to increase decorporation of 137 Cs including diuretics, water overload and ergometric exercises. Radiation induced skin injuries were observed in 28 patients and were treated conservatively. 6 patients required surgical intervention. (author)

  12. Quasi-freestanding graphene on Ni(111) by Cs intercalation

    KAUST Repository

    Alattas, Maha Hassan Mohssen

    2017-01-08

    It is of technological interest to achieve quasi-freestanding graphene on a substrate. A possible approach is the intercalation of alkali metal atoms. Cs intercalation between graphene and Ni(111) is investigated using density functional theory, incorporating van der Waals corrections. It is known that direct contact between graphene and Ni(111) perturbs the Dirac states. Cs intercalation restores the linear dispersion characteristic of Dirac fermions, which is in agreement with experiments1, but the Dirac cone is shifted to lower energy, i.e., the graphene sheet is n-doped. Cs intercalation therefore effectively decouples the graphene sheet from the substrate except for a charge transfer. On the other hand, the spin polarization of Ni(111) does not extend through the intercalated atoms to the graphene sheet, for which we find virtually spin-degeneracy.

  13. Household methods to reduce {sup 137}Cs contents of mushrooms

    Energy Technology Data Exchange (ETDEWEB)

    Kostiainen, E. [Radiation and Nuclear Safety Authority - STUK, Helsinki (Finland)

    2005-09-15

    High radiocaesium contents in different species of mushrooms have been observed in areas contaminated by radiocaesium deposition after the Chernobyl accident in 1986. There has been no significant reduction in the {sup 137}Cs contents of mushrooms during the past ten years, besides via radioactive decay. The internal radiation dose received via mushrooms can be reduced by processing mushrooms before consumption. Various household methods were studied to find out their efficiency to reduce {sup 137}Cs contents of mushrooms. The methods tested were the same as normally used in cooking. The tests were made for the species of edible mushrooms widely consumed. The retention factors for the treatments tested were in most cases 0.2-0.3. The efficiency of treatments in reducing the {sup 137}Cs contents increased with larger water volumes and prolonged treatment times.

  14. Household methods to reduce 137Cs contents of mushrooms

    International Nuclear Information System (INIS)

    Kostiainen, E.

    2005-01-01

    High radiocaesium contents in different species of mushrooms have been observed in areas contaminated by radiocaesium deposition after the Chernobyl accident in 1986. There has been no significant reduction in the 137 Cs contents of mushrooms during the past ten years, besides via radioactive decay. The internal radiation dose received via mushrooms can be reduced by processing mushrooms before consumption. Various household methods were studied to find out their efficiency to reduce 137 Cs contents of mushrooms. The methods tested were the same as normally used in cooking. The tests were made for the species of edible mushrooms widely consumed. The retention factors for the treatments tested were in most cases 0.2-0.3. The efficiency of treatments in reducing the 137 Cs contents increased with larger water volumes and prolonged treatment times

  15. Zulliger (CS in Assessing the Relational Maturity of Children

    Directory of Open Access Journals (Sweden)

    Anna Elisa Villemor-Amaral

    Full Text Available Abstract Relational maturity is an important aspect to be considered in the evaluation of children. Its development in children is considered related to sex and chronological age. The present study aimed to seek evidence of validity for the Zulliger test (Comprehensive System - CS in the evaluation of maturity for interpersonal relationships in children. A total of 566 children, both sexes, of which 52.8% were girls, were submitted to the Zulliger test (CS. For comparison according to age, a subsample was extracted, composed of two groups of six and 12-year-olds, totaling 115 children. The analysis revealed statistically significant differences in the variables H, (H, A, Ad, (A, M, FC and AG. Results show findings in favor of using the Zulliger test (CS in the evaluation of maturity for interpersonal relationships in children.

  16. Studies on diffusion of 137Cs in cement mortar

    International Nuclear Information System (INIS)

    Takebe, Shinichi; Shimooka, Kenji; Wadachi, Yoshiki; Kuramoto, Yuzuru.

    1989-12-01

    Penetration experiment of 137 Cs into the impermeable cement mortar which has been treated by the impermeable reagent (XYPEX reagent) was carried out in order to advance the performance of engineered barrier for Low Level Radioactive Waste. The result showed that the radioactive concentration at deeper region in the impermeable cement mortar specimen was decreased about 1 order of magnitude below that in the untreated specimen. Diffusion coefficient calculated from the radioactive concentration of 137 Cs in the cement mortar specimen was 9.1 x 10 -5 cm 2 /day for untreated cement mortar specimen and 4.0 x 10 -5 cm 2 /day for the impermeable cement mortar specimen, respectively. Treatment of cement mortar by the impermeable reagent was found to be effective to reduce the value of appearent diffusion coefficient for 137 Cs in the cement mortar. (author)

  17. Airborne fallout mapping of 137Cs Finnish defence forces team

    International Nuclear Information System (INIS)

    Kettunen, M.; Heininen, T.; Pulakka, M.

    1997-01-01

    The main task of the team was to create a fallout map of 137 Cs in a specified area in Padasjoki Auttoinen village. The team used an MI-8 helicopter of the Finnish Air Force. The team had an HPGe system (relative efficiency 70%) to measure nuclide specific ground contamination level. For navigation the team took advantage of the DGPS service provided by Finnish Broadcasting company utilizing the RDS-channel to get position accuracy within 2 meters. The correction signal is reachable nationwide on the FM transmitter network. The system produced a distribution map for 40 K and fallout maps for 134,137 Cs using a Micro Station Program with TerraModeler application. The maximum measured 137 Cs ground contamination exceeded 130-140 kBqm -2 . (au)

  18. Measurement of thermal neutron cross section and resonance integral of the reaction {sup 135}Cs(n,{gamma}){sup 136}Cs

    Energy Technology Data Exchange (ETDEWEB)

    Katoh, Toshio; Nakamura, Shoji; Harada, Hideo [Power Reactor and Nuclear Fuel Development Corp., Tokyo (Japan); Hatsukawa, Yuichi; Shinohara, Nobuo; Hata, Kentaro; Kobayashi, Katsutoshi; Motoishi, Shoji; Tanase, Masakazu

    1997-03-01

    The thermal neutron(2,200 m/s neutron) capture cross section({sigma}{sub 0}) and the resonance integral(I{sub 0}) of the reaction {sup 135}Cs(n,{gamma}){sup 136}Cs were measured by an activation method. Targets of radioactive cesium, which include {sup 135}Cs, {sup 137}Cs and stable {sup 133}Cs, were irradiated with reactor neutrons within or without a Cd shield case. The ratio of the number of nuclei of {sup 135}Cs to that of {sup 137}Cs was measured with a quadrupole mass spectrometer. This ratio and the ratio of activity of {sup 136}Cs to that of {sup 137}Cs were used for deduction of the {sigma}{sub 0} and the I{sub 0} of {sup 135}Cs. The {sigma}{sub 0} and the I{sub 0} of the reaction {sup 135}Cs(n,{sigma}){sup 136}Cs were 8.3 {+-} 0.3 barn and 38.1 {+-} 2.6 barn, respectively. (author)

  19. Estimation of average burnup of damaged fuels loaded in Fukushima Dai-ichi reactors by using the 134Cs/137Cs ratio method

    International Nuclear Information System (INIS)

    Endo, T.; Sato, S.; Yamamoto, A.

    2012-01-01

    Average burnup of damaged fuels loaded in Fukushima Dai-ichi reactors is estimated, using the 134 Cs/ 137 Cs ratio method for measured radioactivities of 134 Cs and 137 Cs in contaminated soils within the range of 100 km from the Fukushima Dai-ichi nuclear power plants. As a result, the measured 134 Cs/ 137 Cs ratio from the contaminated soil is 0.996±0.07 as of March 11, 2011. Based on the 134 Cs/ 137 Cs ratio method, the estimated burnup of damaged fuels is approximately 17.2±1.5 [GWd/tHM]. It is noted that the numerical results of various calculation codes (SRAC2006/PIJ, SCALE6.0/TRITON, and MVP-BURN) are almost the same evaluation values of 134 Cs/ 137 Cs ratio with same evaluated nuclear data library (ENDF-B/VII.0). The void fraction effect in depletion calculation has a major impact on 134 Cs/ 137 Cs ratio compared with the differences between JENDL-4.0 and ENDF-B/VII.0. (authors)

  20. Estado de Salud infantil en las comunidades indígenas, afrocolombianas y aisladas en Colombia.

    Directory of Open Access Journals (Sweden)

    Francisco Nuñez L.

    2002-04-01

    Full Text Available

    Se estima que Sur América en la época precolombina tenía entre 7 y 39 millones de habitantes(1. Como consecuencia del descubrimiento y la conquista de América la población indígena fue diezmada en gran proporción; entre las causas adicionales que explican esta disminución en la población, se encuentran múltiples patologías de diverso origen. A pesar de la reducción importante de las poblaciones aisladas Colombia cuenta hoy con una amplia diversidad étnica que motivó al Instituto de Genética Humana de la Universidad Javeriana, con su proyecto de Expedición Humana (EH, a indagar sobre los problemas que afectan estos grupos humanos.

    Para cumplir este propósito los objetivos planteados fueron: realzar con elementos científicos la diversidad humana y cultural de nuestro país, prestar atención primaria en salud a las comunidades indígenas y afro colombianas diagnosticando sus principales problemas de salud e impulsando el desarrollo de proyectos que permitan el acceso de estas comunidades a los servicios de salud. Buscó también respuestas que puedan hacer aportes importantes al conocimiento universal para generar una conciencia de nuestra identidad biológica y cultural.

    El objetivo de este estudio es describir la frecuencia de las enfermedades más comunes, el estado nutricional, los antecedentes médicos, familiares y los hallazgos de la evaluación oftalmológica practicada a niños entre 0 y 18 años pertenecientes a 37 comunidades indígenas, afro colombianas y aisladas en Colombia.

    El proyecto, en lo que atañe a la evaluación del estado de salud infantil, cumple con los propósitos generales de la Expedición Humana y busca explicar la diversidad humana colombiana vista a través de la población infantil perteneciente a los grupos étnicos aislados que inicialmente poblaron nuestro territorio...

  1. Les indéterminations augustiniennes. Gilson’s reading of the Augustinian thought

    Directory of Open Access Journals (Sweden)

    Federico Chiappetta

    2016-02-01

    Full Text Available Étienne Gilson ha dedicato numerosi lavori alla riflessione filosofica di Agostino e alla tradizione agostiniana medievale. Lo storico francese ha cercato di rilevare i tratti principali e lo spirito della filosofia agostiniana e si è interessato ai complessi sviluppi dell’agostinismo. Gilson ha introdotto la categoria storiografica delle indeterminazioni agostiniane per esprimere la complessità del pensiero di Agostino: questa filosofia sarebbe caratterizzata da numerose questioni irrisolte dovute al tentativo agostiniano di dare alla filosofia neoplatonica un significato cristiano. In alcuni suoi lavori, Gilson ha sostenuto che la convergenza fra queste indeterminazioni e alcuni sistemi di pensiero, giunti nell’occidente latino fra il XII e il XIII secolo, avrebbe ispirato la cosiddetta riforma tomista. A questo proposito è molto importante un articolo del 1926, Pourquoi saint Thomas a critiqué saint Augustin. L’articolo mostra l’importanza delle indeterminazioni negli studi dello storico: questa intrinseca incompletezza dell’opera di Agostino consentirebbe di comprendere non solo gli sviluppi del pensiero agostiniano, ma anche il pensiero di Tommaso d’Aquino e della scuola domenicana. L’articolo tratteggia, inoltre, l’interpretazione di Gilson del pensiero agostiniano in relazione all’adesione dello storico alla filosofia neoscolastica. Étienne Gilson devoted several studies to Augustine’s thought and to medieval Augustinian tradition. The French historian attempted to paint the main tracts and the spirit of Augustine’s philosophy and he studied the complex developments of Augustinianism. Gilson introduced the historical category of the indéterminations augustiniennes to express the problematic nature of Augustine’s thought: this philosophy would be characterized by several unexplained questions due to the Augustinian attempt to attach a Christian meaning to the Neoplatonic philosophy. In numerous of his works

  2. Infestación por triatominos en comunidades indígenas de Valledupar, Colombia

    Directory of Open Access Journals (Sweden)

    Marleny Montilla

    2011-08-01

    Full Text Available OBJETIVO: Calcular los índices infestación por triatominos en comunidades indígenas en Colombia. MÉTODOS: Se realizó estudio descriptivo en 19 comunidades indígenas del municipio de Valledupar Departamento de Cesar, Colombia. Durante junio a diciembre de 2007 se recolectaron triatominos por búsqueda activa en las viviendas de los indígenas. Los insectos luego fueron identificados por las claves de Lent & Wygodzinsky. Se desarrolló estudio del proceso infectivo en modelo animal y análisis enzimático de cepas de Trypanosoma cruzi, detectadas en heces de triatominos. RESULTADOS: Rhodnius prolixus presentó índice de densidad en las viviendas de 154,7%, Triatoma dimidiata de 102,45%, Triatoma maculata de 109,25% y Panstrogylus geniculatus de 0,3%. El índice promedio de infestación de las cuatro especies fue de 40,54% y, el de infección con T. cruzi de 9,4%. De cinco hemocultivos positivos para T. cruzi, tres se caracterizaron por isoenzimas, clasificándose en T. cruzi grupo I. El estudio de las biopsias reveló pocas características patológicas durante el proceso de infección con las cepas de T. cruzi aisladas de triatominos domiciliados. CONCLUSIÓN: Los altos índices de infestación por triatominos en las viviendas y el índice de infección por T. cruzi, evidencian la transmisión activa de la enfermedad de Chagas, situación que amerita la aplicación de medidas de control vectorial y el estudio seroepidemilógico de la población en riesgo. La identificación de las cepas de T. cruzi como grupo I concuerda con otros estudios realizados en esta región colombiana.

  3. Temporal variations of Cs-137 in Sots Pine

    International Nuclear Information System (INIS)

    Nylen, T.; Plamboeck, A.H.; Boson, J.

    2008-01-01

    In this study the temporal changes in 137 Cs distribution in a Scots pine (Pinus Sylvestris L.) stand was studied during 1986 to 2006 in Northern Sweden. The Chernobyl fallout provided an excellent possibility to study the uptake and retention in conifer trees of 137 Cs, since the deposition lasted for only a few days. The average deposition of 137 Cs in the region that originates from the Chernobyl accident in 1986 was 20 ± 9 kBq M -2 . Also 137 Cs from the atmospheric nuclear weapons tests was present in the area and was only 3 ±2 kBq m -2 . Studies show that the redistribution of radioactive caesium still contribute to high activity concentrations in some compartments of the ecosystem. It has been known that certain fungi continue to produce fruit bodies with high amounts of 137 Cs. The current study adds another aspect to consider: The high activity concentration in branches and current needles during 2006 indicates an uptake of 137 Cs from the soil which could lead to concentrations in Scots Pine that has to be considered in forestry and other kind of utilization of forest products. There are for instance a few game birds such as the capercaillie (Tetrao urogallus) that feed on pine shoots. Another possible effect is on the use of pine branches in the bio fuel industry. Given an activity concentration of 1200 Bq/kg (d.w.) and a concentration factor of 10 during combustion the concentration in ashes would be 12000 bq/kg. According to the recommendations from SSI (the Swedish Radiation Protection Authority) ashes that have concentrations higher than 10 kBq/kg must be stored in special deposits. It would be of interest to investigate the uptake in stands of different ages since the pine stand that was studied was about 30 years old in 1986 and do not represent neither a mature nor a newly established stand (tk)

  4. Development of the CsI Calorimeter Subsystem for AMEGO

    Science.gov (United States)

    Grove, J. Eric; Woolf, Richard; Johnson, W. Neil; Phlips, Bernard

    2018-01-01

    We report on the development of the thallium-doped cesium iodide (CsI:Tl) calorimeter subsystem for the All-Sky Medium-Energy Gamma-ray Observatory (AMEGO). The CsI calorimeter is one of the three main subsystems that comprise the AMEGO instrument suite; the others include the double-sided silicon strip detector (DSSD) tracker/converter and a cadmium zinc telluride (CZT) calorimeter. Similar to the LAT instrument on Fermi, the hodoscopic calorimeter consists of orthogonally layered CsI bars. Unlike the LAT, which uses PIN photodiodes, the scintillation light readout from each end of the CsI bar is done with recently developed large-area silicon photomultiplier (SiPM) arrays. We currently have an APRA program to develop the calorimeter technology for a larger, future space-based gamma-ray observatory. Under this program, we are building and testing a prototype calorimeter consisting of 24 CsI bars (16.7 mm x 16.7 mm x 100 mm) arranged in 4 layers with 6 bars per layer. The ends of each bar are read out with a 2 x 2 array of 6 mm x 6 mm SensL J series SiPMs. Signal readout and processing is done with the IDEAS SIPHRA (IDE3380) ASIC. Performance testing of this prototype will be done with laboratory sources, a beam test, and a balloon flight in conjunction with the other subsystems led by NASA GSFC. Additionally, we will test 16.7 mm x 16.7 mm x 450 mm CsI bars with SiPM readout to understand the performance of longer bars in advance of the developing the full instrument.Acknowledgement: This work was sponsored by the Chief of Naval Research (CNR) and NASA-APRA (NNH15ZDA001N-APRA).

  5. Distribution of 137Cs in environmental soil and crude drugs

    International Nuclear Information System (INIS)

    Kimura, Shoujiro; Yamaoki, Rumi

    1997-01-01

    Radioactivity of 137 Cs and 40 K was determined on commercially available products of Houttuynia Herb which were imported from China and Taiwan or processed in Japan, and of Houttuynia cordata harvested in 15 places in Japan and the surrounding soil. On Houttuynia Herb, the concentrations of 137 Cs and 40 K were LTD (less than detectable)-7.6 Bq/kg dry and 743-1964 Bq/kg dry, respectively, suggesting than the concentration of 137 Cs was less than 1% of that of 40 K. The domestic products were found to contain higher concentrations of 137 Cs and 40 K than the imported ones. The concentration of 137 Cs of Houttuynia cordata harvested in Japan ranged from 0.8 Bq/kg dry to 172 Bq/kg dry, while the concentration of 40 K was almost the same as that of the commercial products. The concentration ratio of 40 K in Houttuynia cordata to that in the soil was correlated with the moisture content and the ignition loss of the soil. However, the concentration ratio of 137 Cs did not show a very clear correlation. When 15 g of Houttuynia Herb or Houttuynia cordata was daily decocted and given for 1 year the former showed the committed dose equivalent of 0.02-0.5 μSv and the latter 0.06-12 μSv. Both of these values were less than 0.5% of the annual effective dose equivalent from the nature, 2.4 mSv. (author)

  6. Changes in 137Cs transfer to agricultural products

    International Nuclear Information System (INIS)

    Goncharov, N.; Timochtchenko, A.; Milutin, A.

    1999-01-01

    The food production and food harvesting systems common in the areas contaminated by the Chernobyl accident in Republic of Belarus can be grouped into three major categories: collective farm produce, private farming produce and natural foods collected from natural ecosystems. The collective farm system provided the smallest contribution (8-12 %) to the intake of 137 Cs. Natural food was the major contributor to the intake at one study site (73 %), and private produce was the major contributor (60 %) at the other study site. Assessment of the situation just after the accident (one year) shows that collective farming was still a minor contributor to 137 CS intake (10 %) whilst private fanning would have been the major contributor wherever private milk production and consumption continued. The extent to which inhabitants consume natural foods from forests has a considerable effect on their 137 CS intake. The comparative importance of food products from natural ecosystems increases with time due to the long effective ecological half lives of 137 Cs in unimproved pastures and forests. Estimation of the contribution to the fluxes of 137 Cs from the different production and harvesting systems showed that the contribution from private farming and food harvesting from natural ecosystems may also be significant, contributing 14-30 % to the total fluxes of 137 Cs from an area even if the quantity of food produced in these systems is small. However, the major contributor to the flux exported from an area was the collective farming system, accounting for about 70-86 % of the total. Refs. 12 (author)

  7. Parameters Affecting 137Cs Migration within Soil Profile

    International Nuclear Information System (INIS)

    Sefien, S.M.; Ibrahim, A.S.; Abdelmalik, W.E.Y.

    2013-01-01

    Some studies have been carried out on the adsorption, distribution and migration of 137 Cs within soils of the area in the vicinity of the Nuclear Research Centre, Egypt, and Ismailia Canal. The soil physicochemical and mineralogical characteristics were carried out and indicated that the soil samples consisted mainly of sand fraction (quartz) and silt fractions (semctite minerals). The kinetics of caesium adsorption and its adsorption isotherms for the tested soils were also studied. The sorption of 137 Cs on soil minerals markedly affects its migration rate. The natural background of both locations of study indicated that the amounts of 137 Cs present in the reactor site were found to be originated from the fallout and from the external contamination which affected the background level. The 137 Cs activity at the canal site was found to be 20.01 Bq/m 2 .cm, while that around the reactor site were found to be 231.15 Bq/m2.cm which may be originating from the fallout and from external contamination which affect the background level at that location. The activity in the canal soil which amounted to 20.01 Bq/m2/cm (0.87 Bq/kg) is about that of background.Based on the distribution data, the vertical distribution of 137 Cs has been studied for soil in both locations (the vicinity of the Nuclear Research Centre (NRC) and Ismailia canal). The vertical migration rates of 137 Cs were calculated for soil samples selected from different locations. These rates were found to be 0.056 and 0.031 cm/year for the reactor and canal site respectively.

  8. Inventories and fluxes of 137Cs in the Syrian land

    International Nuclear Information System (INIS)

    Al-Masri, M. S.; Amin, Y.

    2005-03-01

    Cesium-137 inventories and atmospheric fluxes have been determined using radiocesium distributions in undistributed soil profiles, collected from 38 sites distributed all over the Syrian lands. Results have shown that 137 Cs inventories determination by Soil Layers Sum Method is more accurate than the Integration Method, where the best curve fitting of 137 Cs distribution with depth is difficult to establish. 137 Cs inventories ranged from 441 Bq.m - 2 and 13312 Bq.m - 2 using the Layers Sum Method with a mean value of 3679 Bq.m - 2; the highest values observed were in the coastal, middle and north east regions. This is due to the fact that most of Chernobyl accident atmospheric fall-out of cesium 137 had entered the Syrian land came from the west boarders (Mediterranean sea). While the lowest values were found to be in the samples collected from the east south region. In addition, 137 Cs flux ranged from 3.1 kBq m - 2y - 1 and 527.8 kBq m - 2 y - 1 with a mean value of 65.7 kBq m - 2y - 1. Moreover, there was a semi linear relationship found between 137 Cs flux and the height above sea level. While no linear relationship was found between 137 Cs flux and annual rainfall. On the other hand, the external radiation dose to Syrians that due to gamma-rays emitted from cesium 137 decay has been determined and reached a mean value of 166μ Sv.y - 1. This value is about 20% of the radiation dose received by the Syrian from naturally occurring radionuclides in soil. (Author)

  9. 210Pb-137Cs dating of glacial lake sediments

    International Nuclear Information System (INIS)

    Graham, I.J.; Ditchburn, R.G.; Barry, B.J.

    2004-01-01

    Sediments deposited in New Zealand lakes in the recent past provide excellent archives of local climate change via their trapped biodiversity, varve structure ad sedimentological composition. To unlock the archival information, accurate and fine-scale dating of the deposits is essential. A combination of 210 Pb and 137 Cs dating provides the most reliable and robust approach. Under favourable conditions, 210 Pb dating can provide a detailed chronology to c.120-140 y, and can be accurately calibrated by 137 Cs for the last 40 y or thereabouts. (author). 6 refs., 4 figs

  10. Simulation of remediation alternatives for a 137Cs contaminated soil

    International Nuclear Information System (INIS)

    Bea, S.A.; Carrera, J.; Saaltink, M.; Soler, J.M.; Ayora, C.

    2004-01-01

    We analyze remediation alternatives for a soil contaminated with 137 Cs, which sorbs strongly to clay aggregates where water flux is negligible. The mobile portion of the soil (macropores) retains little water and cesium. Some of the remediation alternatives involve infiltration of seawater enriched with KCl, to promote mobilization of Cs through exchange with K. Therefore, a fully coupled reactive transport model is used to test these alternatives. We conclude that flushing is a viable alternative, provided that some recommendations, derived from the modelling exercise are followed. These include high rate periodic infiltration and draining, as well as performing infiltration from independent cells to limit the effect of preferential flowpaths. (orig.)

  11. Linhchi mushrooms as biological monitors for 137Cs pollution

    International Nuclear Information System (INIS)

    Tran Van, L.; Le Duy, T.

    1991-01-01

    Radioactivity of Linhchi mushrooms (Ganoderma Lucidum) cultivated in laboratory and production conditions has been measured in the Environmental Laboratory of Nuclear Research Institute (NRI), Dalat, Vietnam. The results showed that Linhchi mushroom has a high radioactive concentration of 137 Cs, which is about 20 Bq kg -1 fresh weight. In addition, the radioactive contents of substrata before and after cultivation were insignificant. This suggested that Linhchi mushroom should only accumulate the 137 Cs radioisotope from the atmosphere, directly. Therefore, it should be considered as a bio-indicator for environmental monitoring. (author) 13 refs.; 3 figs.; 2 tabs

  12. Determination of Sr-90 and Cs-137 in environmental samples

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    The comparison between the Ca concentration in the soil and the transfer factors involved indicates a clear dependence of Sr-90 soil-to-plant transport from the soil's Ca-content with the concentration level of 0.1 g Ca/kg soil appearing to be the limit level. Soil concentrations of Cs-137 determined to-date indicate a very even deposition density of Cs-137. The transfer factors of plant/soil in Chile differ but negligeably from those in Europe. (DG) [de

  13. The chemical speciation of 137Cs in sheepmeat

    International Nuclear Information System (INIS)

    Pang, T.Y.M.; Taylor, D.M.; Williams, D.R.

    1996-01-01

    Minced sheep muscle, homogenised liver and fragmented rib or cortical bone, from sheep grazing near Bootle, Cumbria, U.K., which had been stored for some months at -20 o C, were extracted at 4 o C with an isotonic 0.15 M NaCl-0.02 M phosphate buffer at pH 7.4. Each successive extraction released about 50% of the total 137 Cs remaining in the tissue. Passage of the extracts through a column of the cation-exchanger Dowex 50 x 8 indicated that essentially all the extracted 137 Cs was in cationic form. (author)

  14. {sup 137}Cs in a raised bog in central Sweden

    Energy Technology Data Exchange (ETDEWEB)

    Rosen, K. [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, Ulls vag 17, Box 7014, SE-75007, Uppsala (Sweden)], E-mail: klas.rosen@mv.slu.se; Vinichuk, M. [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, Ulls vag 17, Box 7014, SE-75007, Uppsala (Sweden); Department of Ecology, Zhytomyr State Technological University, 103 Cherniakhovsky Str., 10005 Zhytomyr (Ukraine); Johanson, K.J. [Department of Soil and Environment, Swedish University of Agricultural Sciences, SLU, Ulls vag 17, Box 7014, SE-75007, Uppsala (Sweden)

    2009-07-15

    The vertical distribution of {sup 137}Cs activity in peat soil profiles and {sup 137}Cs activity concentration in plants of various species was studied in samples collected at two sites on a raised bog in central Sweden. One site (open bog) was in an area with no trees and only a few sparsely growing plant species, while the other (low pine) was less than 100 m from the open bog site and had slowly growing Scots pine, a field layer dominated by some ericaceous plants and ground well-covered by plants. The plant samples were collected in 2004-2007 and were compared with samples collected in 1989 from the same open bog and low pine sites. Ground deposition of {sup 137}Cs in 2005 was similar at both sites, 23 000 Bq m{sup -2}. In the open bog peat profile it seems to be an upward transport of caesium since a clear peak of {sup 137}Cs activity was found in the uppermost 1-4 cm of Sphagnum layers, whereas at the low pine site {sup 137}Cs was mainly found in deeper (10-12 cm) layers. The migration rate was 0.57 cm yr{sup -1} at the open bog site and the migration centre of {sup 137}Cs was at a depth of 10.7, while the rate at the low pine site was 0.78 cm yr{sup -1} and the migration centre was at 14.9 cm. Heather (Calluna vulgaris) was the plant species with the highest {sup 137}Cs activity concentrations at both sites, 43.5 k Bq{sup -1} DM in 1989 decreasing to 20.4 in 2004-2007 on open bog and 22.3 k Bq kg{sup -1} DM in 1989 decreasing to 11.2 k Bq{sup -1} DM by the period 2004-2007 on the low pine site. {sup 137}Cs transfer factors in plants varied between 0.88 and 1.35 on the open bog and between 0.48 and 0.69 m{sup 2} kg{sup -1} DM at the low pine site.

  15. Mechanisms and models of 137Cs migration in soil

    International Nuclear Information System (INIS)

    Frid, A.S.

    1999-01-01

    The most wide-spread mechanisms and models of the 137 Cs isotope migration in soil are considered because of urgency of this problem conditioned by global fallout during nuclear weapon tests and contamination of territories due to accidents on nuclear objects (including the East Urals and ChNPP accident). It is shown that the 137 Cs migration models with an account of the sorption-desorption kinetics have from the practical adequacy certain advantage in comparison with other models, though they are mathematically more complex and require complex calculations [ru

  16. 137Cs in a raised bog in central Sweden

    International Nuclear Information System (INIS)

    Rosen, K.; Vinichuk, M.; Johanson, K.J.

    2009-01-01

    The vertical distribution of 137 Cs activity in peat soil profiles and 137 Cs activity concentration in plants of various species was studied in samples collected at two sites on a raised bog in central Sweden. One site (open bog) was in an area with no trees and only a few sparsely growing plant species, while the other (low pine) was less than 100 m from the open bog site and had slowly growing Scots pine, a field layer dominated by some ericaceous plants and ground well-covered by plants. The plant samples were collected in 2004-2007 and were compared with samples collected in 1989 from the same open bog and low pine sites. Ground deposition of 137 Cs in 2005 was similar at both sites, 23 000 Bq m -2 . In the open bog peat profile it seems to be an upward transport of caesium since a clear peak of 137 Cs activity was found in the uppermost 1-4 cm of Sphagnum layers, whereas at the low pine site 137 Cs was mainly found in deeper (10-12 cm) layers. The migration rate was 0.57 cm yr -1 at the open bog site and the migration centre of 137 Cs was at a depth of 10.7, while the rate at the low pine site was 0.78 cm yr -1 and the migration centre was at 14.9 cm. Heather (Calluna vulgaris) was the plant species with the highest 137 Cs activity concentrations at both sites, 43.5 k Bq -1 DM in 1989 decreasing to 20.4 in 2004-2007 on open bog and 22.3 k Bq kg -1 DM in 1989 decreasing to 11.2 k Bq -1 DM by the period 2004-2007 on the low pine site. 137 Cs transfer factors in plants varied between 0.88 and 1.35 on the open bog and between 0.48 and 0.69 m 2 kg -1 DM at the low pine site.

  17. Solving PDEs in Python the FEniCS tutorial I

    CERN Document Server

    Langtangen, Hans Petter

    2016-01-01

    This book offers a concise and gentle introduction to finite element programming in Python based on the popular FEniCS software library. Using a series of examples, including the Poisson equation, the equations of linear elasticity, the incompressible Navier–Stokes equations, and systems of nonlinear advection–diffusion–reaction equations, it guides readers through the essential steps to quickly solving a PDE in FEniCS, such as how to define a finite variational problem, how to set boundary conditions, how to solve linear and nonlinear systems, and how to visualize solutions and structure finite element Python programs. This book is open access under a CC BY license.

  18. Mathematical model of 137Cs dynamics in the deciduous forest

    International Nuclear Information System (INIS)

    Mamikhin, S.V.; Klyashtorin, A.L.

    1999-01-01

    A mathematical model of 137 Cs behaviour in the forest ecosystem is presented. The behaviour of this radionuclide is assumed to obey the same regularities as the behaviour of its stable chemical analogue, potassium. Radionuclide dynamics are considered in parallel with the dynamics of the phytomass. Radionuclides contained in the vegetation are pooled into two basic compartments: external and internal contamination, with separate analysis of each. The model was verified using the data obtained in the 30-km zone of the Chernobyl NPP in 1986-1994. The algorithm described was found to be the most efficient in terms of 137 Cs behaviour in the forest environments

  19. Low-temperature anharmonicity in cesium chloride (CsCl)

    Energy Technology Data Exchange (ETDEWEB)

    Sist, Mattia; Faerch Fischer, Karl Frederik; Brummerstedt Iversen, Bo [Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University (Denmark); Kasai, Hidetaka [Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University (Denmark); Faculty of Pure and Applied Sciences, TIMS and CiRfSE, University of Tsukuba (Japan)

    2017-03-20

    Anharmonic lattice vibrations govern heat transfer in materials, and anharmonicity is commonly assumed to be dominant at high temperature. The textbook cubic ionic defect-free crystal CsCl is shown to have an unexplained low thermal conductivity at room temperature (ca. 1 W/(m K)), which increases to around 13 W/(m K) at 25 K. Through high-resolution X-ray diffraction it is unexpectedly shown that the Cs atomic displacement parameter becomes anharmonic at 20 K. (copyright 2017 Wiley-VCH Verlag GmbH and Co. KGaA, Weinheim)

  20. Transfer factor values of 137 Cs from latosoils to vegetables

    International Nuclear Information System (INIS)

    Wasserman, Maria Angelica Moreira; Belem, Lilia Maria Juacaba

    1996-01-01

    Transfer Factor values for black beams, radish and carrot were obtained for soils artificially and accidentally contaminated in Goiania during 1987. Differences of 137 Cs-soil-to-plant transfer were discussed in the light of pedology and crop type. These values were about one order of magnitude higher than mean values reported by IUR for temperature climate for the same crops. These results advertising for the peculiar dynamics of 137 Cs in tropical soils and for needs to obtain regional data to be used in assessment dose models. (author)

  1. Laser Decontamination of Surfaces Contaminated with Cs+ Ion

    International Nuclear Information System (INIS)

    Baigalmaaa, B.; Won, H. J.; Moon, J. K.; Jung, C. H.; Lee, K. W.; Hyun, J. H.

    2008-01-01

    Laser decontamination technology has been proven to be an efficient method for a surface modification of metals and concretes contaminated with radioactive isotopes. Furthermore, the generation of a secondary waste is negligible. The radioactivity of hot cells in the DFDF (Dupic Fuel Development Facility) is presumed to be very high and the predominant radionuclide is Cs-137. A series of laser decontamination studies by a fabricated Q-switched Nd:YAG laser system were performed on stainless steel specimens artificially contaminated with Cs+ ion. Decontamination characteristics of the stainless steel were analyzed by SEM and EPMA

  2. Flash CS5.5 The Missing Manual

    CERN Document Server

    Grover, Chris

    2011-01-01

    You can build everything from simple animations to full-fledged iOS and Android apps with Flash CS5.5, but learning this complex program can be difficult-unless you have this fully updated, bestselling guide. Learn how to create gorgeous Flash effects even if you have no programming experience. With Flash CS5.5: The Missing Manual, you'll move from the basics to power-user tools with ease. Learn animation basics. Discover how to turn simple ideas into stunning animations.Master Flash's tools. Learn the animation and effects tools with clear explanations and hands-on examples.Use 3D effects. R

  3. CsI calorimeter of the CMD-3 detector

    International Nuclear Information System (INIS)

    Aulchenko, V.M.; Bondar, A.E.; Erofeev, A.L.; Kovalenko, O.A.; Kozyrev, A.N.; Kuzmin, A.S.; Logashenko, I.B.; Razuvaev, G.P.; Ruban, A.A.; Shebalin, V.E.; Shwartz, B.A.; Talyshev, A.A.; Titov, V.M.; Yudin, Yu.V.; Epifanov, D.A.

    2015-01-01

    The VEPP-2000 e + e − collider has been operated at Budker Institute of Nuclear Physics since 2010. The experiments are performed with two detectors CMD-3 and SND. The calorimetry at the CMD-3 detector is based on three subsystems, two coaxial barrel calorimeters—Liquid Xenon Calorimeter and crystal CsI calorimeter, and endcap calorimeter with BGO crystals. This paper describes the CsI calorimeter of the CMD-3 detector. The calorimeter design, its electronics and calibration procedures are discussed

  4. A winning combination: the 3Cs of business continuity.

    Science.gov (United States)

    Glendon, Lee

    2013-01-01

    Contingency planning is a natural part of business life and is used across identified strategic, financial and operational risks. But is it being done well and is it the right approach all of the time? This paper shows how contingency planning forms one layer of a three-line defence termed 'the 3Cs of business continuity': contingency planning; continuity capability; crisis response. Collectively, 'the 3Cs' help organisations deliver a robust response to the risks that can be seen and those that cannot.

  5. A indústria têxtil na região nordeste: gargalos, potencialidades e desafios

    Directory of Open Access Journals (Sweden)

    Fernando Luiz Emerenciano Viana

    2008-10-01

    Full Text Available Este trabalho apresenta uma avaliação da competitividade da Indústria Têxtil na Região Nordeste, bem como uma relação de gargalos, potencialidades e desafios. As observações foram feitas a partir de pesquisa bibliográfica e documental. Foram realizadas análises da indústria têxtil no âmbito brasileiro e mais detalhadamente no campo de atuação nordestino. Os estados do Ceará, Bahia, Paraíba e Rio Grande do Norte destacaram-se na produção e no número de empregos no setor. Questões logísticas ligadas à integração e adensamento da cadeia produtiva a partir da articulação com a indústria de confecções, infra-estrutura e modernização tecnológica são apontadas como temas recorrentes ao alavancamento da Indústria na Região.

  6. Taenia saginata Goeze, 1872 (Platyhelminthes: Cestoda: Taeniidae en un indígena de Tierra del Fuego, Chile

    Directory of Open Access Journals (Sweden)

    Eduardo I. Faúndez

    2015-06-01

    Full Text Available Se entrega el primer registro del céstodo Taenia saginata en un indígena de Tierra del Fuego (Patagonia chilena, correspondiente al año 1902. Se discute la importancia del registro y se entregan ilustraciones del ejemplar.

  7. En busa de tinterillos. Intermediarios en el mundo indígena ecuatoriano duante el siglo XX

    Directory of Open Access Journals (Sweden)

    Marc Becker

    2013-07-01

    Full Text Available Este artículo aborda el papel de los abogados semiprofesionales, conocidos como tinterillos, en las comunidades indígenas de la sierra ecuatoriana, a partir de mediados del siglo XIX, quienes adquirieron una presencia aparentemente ubicua en las comunidades rurales del Ecuador. Muchas veces los tinterillos fueron parte de las élites locales con algo de educación. Inspiraban respeto entre los indígenas (quienes, en su mayoría, eran analfabetos debido a su habilidad a manejar documentos escritos. Estos intermediarios comúnmente explotaron su posición privilegiada para su propio beneficio económico, social y político. Sin embargo, los indígenas llegaron a depender del apoyo de los tinterillos para denunciar ante el gobierno los abusos de los terratenientes. En ocasiones, en lugar de sentirse impotentes o víctimas, los indígenas aprendieron a negociar sus relaciones con esos intermediarios para su beneficio. El estudio de los tinterillos permite examinar las relaciones de poder que se negociaron entre diferentes culturas y a través de profundas divisiones de clase.

  8. En busca de tinterrillos. Intermediarios en el mundo indígena ecuatoriano durante el siglo XX

    Directory of Open Access Journals (Sweden)

    Marc Becker

    2013-07-01

    Full Text Available Este artículo aborda el papel de los abogados semiprofesionales, conocidos como tinterillos, en las comunidades indígenas de la sierra ecuatoriana, a partir de mediados del siglo XIX, quienes adquirieron una presencia aparentemente ubicua en las comunidades rurales del Ecuador. Muchas veces los tinterillos fueron parte de las elites locales con algo de educación. Inspiraban respeto entre los indígenas (quienes en su mayoría eran analfabetos debido a su habilidad de manejar documentos escritos. Estos intermediarios comúnmente explotaron su posición privilegiada para beneficio propio económico, social y político. Sin embargo, los indígenas llegaron a depender del apoyo de los tinterillos para denunciar ante el gobierno los abusos de los terratenientes. En ocasiones, en lugar de sentirse impotentes o víctimas, los indígenas aprendieron a negociar su relaciones con esos intermediarios para su beneficio. El estudio de los tinterillos permite examinar las relaciones de poder que se negociaron entre diferentes culturas y a través de profundas divisiones de clase.

  9. Recent levels of radionuclides in lichens from southwest Poland with particular reference to 134Cs and 137Cs

    International Nuclear Information System (INIS)

    Seaward, M.R.D.; Bylinska, E.A.

    1988-01-01

    Analyses of Umbilicaria species collected from southwest Poland in August 1986 have shown there to be significant increases in levels of various radionuclides since previous analyses based on fieldwork in 1978-1979. The composition and ratio of the various radionuclides, particularly in respect of 134 Cs and 137 Cs, exhibit a characteristic signature consistent with contamination derived from the accident at the Chernobyl nuclear reactor in April 1986. Intraspecific variation in levels of 137 Cs in Umbilicaria is related to such factors as location, altitude and, to a lesser degree, aspect; interspecific variation in levels is related to ecological requirements and geographical pattern, and hence the same factors, although morphological differences in thalli may be implicated. (author)

  10. Literatura Inca (¿indígena? como representación de la literatura peruana

    Directory of Open Access Journals (Sweden)

    Gonzalo Espino Relucé

    2011-05-01

    Full Text Available Esta comunicación propone la relación entre las bellas letras y las manifestacionesdiscursivas vinculadas al indio; por eso, esboza las principales ideasliterarias que Jorge Basadre propone en Equivocaciones y cuyo trazo se puedeleer en Historia de la República del Perú.1 Se detiene en la importancia de laLiteratura inca, compilación de Basadre, cuya publicación constituye un recuentode la literatura prehispánica, la producción colonial y republicana de laescritura literaria quechua como representación de lo indígena para las culturasperuanas. Lo vinculo, asimismo, a la comprensión de la literatura como ejercicioheterogéneo y a las formas como el indio es representado en la escritura a finalesde la primera mitad del siglo XX.

  11. Antropología del poder (Anuario de Estudios Indígenas (VV.AA.

    Directory of Open Access Journals (Sweden)

    Sergio Daniel López

    2010-05-01

    Full Text Available Se puede afirmar que el estado mexicano de Chiapas es uno de los lugares más privilegiados, ricos y diversos para estudiar desde la disciplina antropológica el poder social. La variedad de culturas y lenguas encontradas dentro de fronteras comunes; las disputas centenarias sobre la legislación de las tierras; la mezcla de los modelos políticos occidentales que chocan o conviven con las organizaciones ejidales o los sistemas de cargos tradicionales; las revoluciones campesinas, la lucha por los derechos indígenas y el establecimiento de comunidades autónomas; el abuso, la corrupción y la apropiación del espacio político; la competencia religiosa por el liderazgo espiritual serían sólo algunos ejemplos de las temáticas que sirven como objeto de estudio disciplinar en esta fascinante región.

  12. Indústria de tabaco e cidadania: confronto entre redes organizacionais

    OpenAIRE

    Boeira, Sérgio Luís

    2006-01-01

    O artigo aborda a história da indústria de tabaco no Brasil e da formação de sua rede estratégica, bem como da rede dos atores sociais que a contrapõem. Na primeira parte, apresenta-se uma correlação entre a história da produção industrial, do consumo de tabaco e do antitabagismo. Na segunda parte são apresentados os conceitos de rede estratégica e de rede multifragmentária (antifumo), propostos para facilitar a compreensão de alguns dos múltiplos aspectos conflitivos entre as duas redes. A p...

  13. Articulações políticas indígenas no sul da Bahia

    OpenAIRE

    Freire, Ricardo Sallum

    2016-01-01

    Os povos indígenas no Brasil têm se organizado social e politicamente diante dos atuais desafios impostos à reapropriação de seus territórios tradicionais e à manutenção dos direitos até então conquistados. No período histórico presente, em que se configura amplamente um meio geográfico técnico-científico-informacional, suas disputas territoriais ganham novos contornos e significados. Inseridos nesse contexto, os povos Tupinambá, Pataxó e Pataxó Hãhãhãe, no sul da Bahia, vêm constituindo sign...

  14. INdAM Meeting on Homological and Computational Methods in Commutative Algebra

    CERN Document Server

    Gubeladze, Joseph; Römer, Tim

    2017-01-01

    This volume collects contributions by leading experts in the area of commutative algebra related to the  INdAM meeting “Homological and Computational Methods in Commutative Algebra” held in Cortona (Italy) from May 30 to  June 3, 2016 . The conference and this volume are dedicated to Winfried Bruns on the occasion of his 70th birthday. In particular, the topics of this book strongly reflect the variety of Winfried Bruns’ research interests and his great impact on commutative algebra as well as its applications to related fields. The authors discuss recent and relevant developments in algebraic geometry, commutative algebra, computational algebra, discrete geometry and homological algebra. The book offers a unique resource, both for young and more experienced researchers seeking comprehensive overviews and extensive bibliographic references.

  15. Arte, Indústria Cultural e educação

    Directory of Open Access Journals (Sweden)

    LUCI MARA BERTONI

    Full Text Available A necessidade, cada vez mais crescente, da busca de felicidade tem feito com que as pessoas se deixem influenciar pelo consumo desmedido dos produtos ofertados pela Indústria Cultural, fazendo da arte, de modo especial, da música, um meio de tornar-se igual sem perceber que estão se colocando à margem de sua própria cultura. Neste sentido, é necessário repensar quais são as contribuições da educação no intuito de formar para a emancipação e para a resistência, segundo as concepções adornianas.

  16. Densité de population et systèmes agricoles en Inde

    Directory of Open Access Journals (Sweden)

    François DURAND-DASTÈS

    1986-12-01

    Full Text Available II est classique de considérer que la densité de population et la productivité de l'agriculture sont fortement liées l'une à l'autre en Inde. La réalité de cette relation est vérifiée par la technique de la régression linéaire. La prise en compte des résidus permet de mettre en valeur des spécificités régionales, dont l'explication est esquissée par la prise en compte de l'histoire du peuplement et des structures sociales.

  17. La vejez indígena. El caso de los zoques del noroeste chiapaneco

    Directory of Open Access Journals (Sweden)

    Laureano Reyes Gómez

    1999-01-01

    Full Text Available En este artículo se confrontan los cambios socioculturales experimentados al interior de la comunidad indígena zoque y se analizan las relaciones con los viejos, en términos del impacto que ha sufrido la cultura del grupo cuando han sido cambiados algunos de sus valores económicos y demográficos. La vejez es vista, entonces, no ya desde una perspectiva idílica, sino de una forma más ambivalente, combinada con extrema pobreza, un rápido crecimiento de la población de viejos, el debilitamiento de las estructuras tradicionales en las que descansa el poder de los viejos y la lucha generacional que se da al interior de la comunidad.

  18. Le Kāmasūtra et la « pulsion shastrique » en Inde

    OpenAIRE

    Naudou, Elizabeth

    2013-01-01

    Le mot « shastrique » fait référence au traité (śāstra) d’où sont issus les Kāmasūtra, (plus généralement appelé le Kāmasūtra), « aphorismes sur l’amour » : le Kāmaśāstra, « traité sur l’amour ». Qui dit śāstra, dit, en Inde, exposé religieux ou scientifique, d’où l’expression « pulsion shastrique » que l’on pourrait rendre par « pulsion encyclopédique énumérative et classificatoire ». Le but de cet exposé est de replacer le texte dans cette structure mentale typiquement indienne, qui reflète...

  19. INdAM conference "CoMeTA 2013 - Combinatorial Methods in Topology and Algebra"

    CERN Document Server

    Delucchi, Emanuele; Moci, Luca

    2015-01-01

    Combinatorics plays a prominent role in contemporary mathematics, due to the vibrant development it has experienced in the last two decades and its many interactions with other subjects. This book arises from the INdAM conference "CoMeTA 2013 - Combinatorial Methods in Topology and Algebra,'' which was held in Cortona in September 2013. The event brought together emerging and leading researchers at the crossroads of Combinatorics, Topology and Algebra, with a particular focus on new trends in subjects such as: hyperplane arrangements; discrete geometry and combinatorial topology; polytope theory and triangulations of manifolds; combinatorial algebraic geometry and commutative algebra; algebraic combinatorics; and combinatorial representation theory. The book is divided into two parts. The first expands on the topics discussed at the conference by providing additional background and explanations, while the second presents original contributions on new trends in the topics addressed by the conference.

  20. Métrica de la literatura sobre los indígenas de México

    OpenAIRE

    Cristina Restrepo-Arango; Rubén Urbizagástegui-Alvarado

    2016-01-01

    http://dx.doi.org/10.5007/1518-2924.2016v21n46p104 Se analizan las características demográficas, crecimiento y productividad de la literatura publicada sobre los pueblos indígenas de México e indizada en Web of Science y Scopus. Se encontraron 2,457 trabajos publicados, sobre todo en revistas académicas (94%) y reseñas de libros (25.5%) en idioma inglés (89%). 732 títulos de revistas que publicaron un total de 1,642 artículos y se identificaron 9 títulos de revistas en la zona núcleo, ent...

  1. O mercado e as possibilidades da indústria de biofármacos no Brasil

    OpenAIRE

    Renata Leite Tanaka; Maria Cristina Sanches Amorim

    2014-01-01

    Na última década, a produção de biofármacos é uma estratégia da grande empresa farmacêutica em todo o mundo. O desafio para o Estado brasileiro e para as organizações farmacêuticas nacionais é participar desse segmento em franca expansão e com efeitos importantes nas políticas públicas de medicamentos. As informações sobre o segmento encontram-se dispersas, assim, os objetivos do artigo são descrever o mercado no Brasil e apontar os principais debates sobre a inserção da indústria nacional na...

  2. Um Olhar Sobre a Indústria Musical: Limites e Possibilidades para uma Contra Hegemonia.

    Directory of Open Access Journals (Sweden)

    Rebecca Nora

    2017-12-01

    Full Text Available Esse artigo tem como objetivo analisar o papel central que a Indústria Musical exerce enquanto sustentáculo da hegemonia burguesa, atualmente expressa pelo modo de produção racista-patriarcal-capitalista, bem como as mudanças ocorridas nesta devido à revolução digital. Esse trabalho se constitui sob o arcabouço teórico marxista, que à luz gramsciana permite analisar dialeticamente os limites e possibilidades instauradas pela revolução técnico-cientifico-informacional no cotidiano das relações sociais. Destaca-se, em conclusão, a importante contribuição do debate no campo da ética apresentado por Maria Lúcia Silva Barroco para a elaboração desse trabalho.

  3. Génesis y desarrollo de un movimiento armado indígena en Colombia

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    Juan Manuel IBEAS DELGADO

    2009-11-01

    Full Text Available RESUMEN: El autor describe y analiza, desde la perspectiva organizacional, el ciclo de una guerrilla indígena colombiana desde su nacimiento, fruto de una gran movilización social previa, hasta su incorporación a la vida legal, resultado de un proceso de negociación que culmina con la entrega de las armas.ABSTRACT: In this article, the author focusses on a Colombian indigenous guerrilla cycle, from the organizational point of view. The author deals with the cycle of this guerrilla since its emergente, as a result of a previous social mobilization, to its incorporation to legal political life, after a negotiation process that finishes with the rending of the weapons.

  4. Educa??o ind?gena makuxi pelas ondas da FM Monte Roraima (2003-2008)

    OpenAIRE

    Silva, Antonia Costa da

    2009-01-01

    A proposta da presente pesquisa foi estudar o uso do r?dio no processo de educa??o ind?gena, atrav?s de um estudo de caso. Por ser um dos meios de comunica??o de massa, que presta grandes servi?os ? sociedade atrav?s da informa??o e do entretenimento, o r?dio tem se transformado ao longo de sua exist?ncia. Com o avan?o tecnol?gico, nos dias atuais, a instala??o e a recep??o das ondas de r?dio se tornaram acess?veis em todo o mundo. Ainda com o surgimento de outros meios de comunica??o, como a...

  5. Animal cysticercosis in indigenous Brazilian villages Cisticercose animal em aldeias indígenas brasileiras

    Directory of Open Access Journals (Sweden)

    Samuel Carvalho de Aragão

    2010-06-01

    Full Text Available Sanitary inspection of beef and pork meat has been the major tool for diagnosing animal cysticercosis and for preventing taeniasis in Brazil. The indigenous villages Jaguapiru and Bororo are located close to the urban area of the municipality of Dourados in the State of Mato Grosso do Sul, Brazil, where precarious basic sanitation conditions are observed. Both cattle and pigs are raised for self-consumption of meat and milk as well as for sale on the external market, generally without official sanitary inspection. In this study, 96 bovine carcasses and 117 pig blood serum samples from animals raised in these indigenous villages were evaluated for the presence of metacestodes by postmortem evaluation, and anti-Taenia sp. antibodies were investigated using the indirect ELISA test. Metacestode forms were observed in 18.7% of the bovine carcasses, and 9.4% of the pig serum samples were positive for anti-Taenia sp. antibodies. The occurrence of animal cysticercosis in the villages may favor the occurrence of this zoonosis in the indigenous populations. Enforcement of proper slaughter and sanitary inspection conditions are urgently needed for controlling the taeniasis-cysticercosis complex among the indigenous population.A inspeção sanitária da carne bovina e suína tem sido a principal forma diagnóstica da cisticercose animal e da prevenção da teníase no Brasil. As aldeias indígenas Jaguapirú e Bororó estão localizadas próximo à área urbana do município de Dourados-MS, com condições precárias de saneamento básico, onde bovinos e suínos são criados como fonte de alimento para consumo próprio, bem como para comercialização externa, geralmente sem inspeção sanitária oficial. Neste estudo, 96 carcaças bovinas e 117 amostras de soro de suínos, criados nas aldeias indígenas, foram avaliadas para a presença de formas metacestóides à inspeção sanitária e de anticorpos anti-Taenia sp. ao teste ELISA, respectivamente

  6. V773 Cas, QS Aql, AND BR Ind: ECLIPSING BINARIES AS PARTS OF MULTIPLE SYSTEMS

    Energy Technology Data Exchange (ETDEWEB)

    Zasche, P.; Juryšek, J.; Nemravová, J.; Wolf, M.; Korčáková, D. [Astronomical Institute, Charles University in Prague, Faculty of Mathematics and Physics, CZ-180 00, Praha 8, V Holešovičkách 2 (Czech Republic); Uhlař, R. [Private Observatory, Pohoří 71, CZ-254 01, Jílové u Prahy (Czech Republic); Svoboda, P. [Private Observatory, Výpustky 5, CZ-614 00, Brno (Czech Republic); Hoňková, K. [Variable Star and Exoplanet Section of Czech Astronomical Society, Vsetínská 941/78, CZ-757 01, Valašské Meziříčí (Czech Republic); Mašek, M.; Prouza, M. [Institute of Physics, The Czech Academy of Sciences, Na Slovance 1999/2, CZ-182 21, Praha (Czech Republic); Čechura, J.; Šlechta, M., E-mail: zasche@sirrah.troja.mff.cuni.cz [Astronomical Institute, The Czech Academy of Sciences, CZ-251 65, Ondřejov (Czech Republic)

    2017-01-01

    Eclipsing binaries remain crucial objects for our understanding of the universe. In particular, those that are components of multiple systems can help us solve the problem of the formation of these systems. Analysis of the radial velocities together with the light curve produced for the first time precise physical parameters of the components of the multiple systems V773 Cas, QS Aql, and BR Ind. Their visual orbits were also analyzed, which resulted in slightly improved orbital elements. What is typical for all these systems is that their most dominant source is the third distant component. The system V773 Cas consists of two similar G1-2V stars revolving in a circular orbit and a more distant component of the A3V type. Additionally, the improved value of parallax was calculated to be 17.6 mas. Analysis of QS Aql resulted in the following: the inner eclipsing pair is composed of B6V and F1V stars, and the third component is of about the B6 spectral type. The outer orbit has high eccentricity of about 0.95, and observations near its upcoming periastron passage between the years 2038 and 2040 are of high importance. Also, the parallax of the system was derived to be about 2.89 mas, moving the star much closer to the Sun than originally assumed. The system BR Ind was found to be a quadruple star consisting of two eclipsing K dwarfs orbiting each other with a period of 1.786 days; the distant component is a single-lined spectroscopic binary with an orbital period of about 6 days. Both pairs are moving around each other on their 148 year orbit.

  7. Educacion y salud indígena: preámbulo a un futuro ciudadano.

    Directory of Open Access Journals (Sweden)

    Edgar Merchán Hamann

    2012-03-01

    Full Text Available Los autores se refieren a la presencia de estudiantes indígenas en las universidades brasileñas, que constituye objeto de críticas y debates. Los indicadores de salud en las comunidades indígenas muestran las desventajas e inequidades acumuladas al cabo de siglos de exclusión. Delante de este cuadro, los autores hacen un contraste entre las estrategias posíbles de “perdón y olvido “ o de “justicia y reparación”. De la formulación de políticas de protección y garantía de derechos hasta su efectivación, hay un recorrido complejo y, a veces, azaroso. Siempre habrá presiones y, ocasionalmente, abusos y distorciones que son habilmente aprovechados por los enemigos de la política pública y defensores del Estado mínimo. Los autores creen que deben ser fomentados y creados espacios de diálogo para la realización de debates que contribuyan a superar las grandes dicotomías y tensiones dialécticas entre: aculturación versus preservación; etnología tradicional versus antropología en la multiculturalidad; etnopolítica versus resistencia étnica; reconocimiento versus reificación excluyente; identidad hegemónica de nación versus identidades colectivas particulares, entre otros.

  8. Política ambiental y territorios indígenas de Sonora

    Directory of Open Access Journals (Sweden)

    Diana Luque

    2012-01-01

    Full Text Available La política ambiental en México ya es parte de la agenda de seguridad nacional, sin embargo, uno de sus instrumentos de planeación clave es el OET (Ordenamiento Ecológico del Territorio, el cual no ha logrado el impacto previsto. Se propone a los pueblos y territorios indígenas de Sonora como sector estratégico para la implementación de los OET, para lo cual se considera necesario profundizar en su problemática actual. Por ello, se realiza un análisis socioambiental de los complejos bioculturales de Sonora, a partir del marco de reflexión de la ecología política y la perspectiva biocultural. Esto se logra a partir de un análisis interdisciplinario donde se conjugan epistemologías y metodologías de los campos de las ciencias sociales y de la ecología. El análisis socioambiental se organiza a partir de dos grandes temas: la territorialidad y la comunidad indígena contemporánea. Se concluye que el formato actual de los OET es poco operativo, por lo que se dan recomendaciones para eficientar su implementación. Por último, se resalta la importancia de la atención de los complejos bioculturales, en primera instancia como un tema de justicia ambiental, así como por su capacidad para incidir a favor de los temas globales ambientales, como el cambio climático y la disponibilidad y calidad del agua.

  9. Estado nutricional y aspectos alimentarios de mujeres indígenas del departamento de Presidente Hayes, Paraguay

    Directory of Open Access Journals (Sweden)

    Gloria Echagüe

    2015-12-01

    Full Text Available Introducción: Las comunidades indígenas presentan un mayor riesgo de inseguridad alimentaria y malnutrición, menor disponibilidad de recursos, y una creciente dependencia de alimentos más baratos aunque con un alto grado de procesamiento. Objetivo: Identificar el estado nutricional y aspectos alimentarios en mujeres indígenas de tres comunidades del Departamento de Presidente Hayes, Chaco Paraguayo. Metodología: Estudio observacional de diseño transversal con componente analítico, que incluyó a 81 mujeres de 15 a 44 años de edad, de las etnias Maká y Toba Qom. Previo consentimiento informado, se realizó la valoración nutricional y la entrevista para obtener los datos sociodemográficos y alimentarios. Resultados: Las mujeres indígenas presentaron una frecuencia de sobrepeso de 30,8% y obesidad del 21,0%, mientras que el 1,2 % presentó desnutrición. No encontramos diferencia significativa entre las etnias, en relación al sobrepeso y obesidad, (p>0,05. Observamos que las indígenas tenían una alta ingesta de frutas, azúcares y mieles. El 87 y 88% de las mujeres indígenas de ambas etnias estudiadas refirieron no consumir lácteos y derivados y entre 65 y 69% refirieron no consumir verduras. Conclusiones: Observamos un elevado porcentaje de obesidad y sobrepeso, un bajo consumo de lácteos y verduras y un alto consumo de azúcares, relacionados posiblemente a cambios en los aspectos alimentarios y sus costumbres, influenciados por la cercanía a las zonas urbanas y el acceso a alimentos de menor precio y mayor contenido energético.

  10. As relações contratuais das indústrias criativas: o caso dos quadrinhos no Ceará

    Directory of Open Access Journals (Sweden)

    Paulo César de Sousa Batista

    Full Text Available O segmento dos quadrinhos, inserido no contexto das indústrias criativas, tem assumido relevância econômica e cultural. Sendo assim, esta pesquisa tem como objetivo principal analisar fatores importantes do processo de contratação dos profissionais dessa área. O foco será na relação contratual entre os dois principais protagonistas das indústrias criativas, o artista e o agente, sendo que as análises serão baseadas na percepção dos artistas a respeito, principalmente, dos custos de transação, direitos autorais, assimetria de informações e agentes de mercado. O estudo de caráter descritivo e exploratório fez uso de métodos qualitativos também nas entrevistas realizadas no trabalho empírico. Os respondentes fazem parte da indústria criativa cearense e atuam no setor de quadrinhos. Os principais resultados encontrados pela análise de conteúdo das entrevistas diz respeito, basicamente, a falta de profissionalismo ainda existente no setor de quadrinhos da indústria criativa cearense. Há ainda, conforme indícios desta pesquisa, falta de visão mercadológica e de mentalidade profissional dos artistas, ausência de agentes especializados para interferir comercialmente, e a ausência de proteção aos direitos autorais e conexos. Acredita-se que os resultados aqui disponibilizados podem gerar informações relevantes para a melhor compreensão do mercado tido como objeto de estudo, e com isso colaborar na profissionalização deste importante segmento cultural para a atual economia.

  11. SOL-IND. Photovoltaics integrated in an industrialised building process. Final report; SOL-IND. Solceller integreret i industrielt byggeri. Slutrapport

    Energy Technology Data Exchange (ETDEWEB)

    Frederiksen, K.H.B.; Vestersager Engdal, J. (EnergiMidt A/S, Silkeborg (Denmark))

    2008-06-15

    The purpose of the project, EFP06 - Photovoltaics integrated in an industrialised building process (SOLIND), has been to examine the possibilities for PV (photovoltaics) in an industrialized building process. The project is an information gathering and development project with basis in knowledge about the possibilities for PV in relation to specific housing projects in Skanska Bolig A/S, including BoKlok, developed in cooperation with IKEA. During the project a workshop with participating architectural students has been carried through resulting in detailed concepts. The concepts have in general terms been introduced nationally to the press and were invited to a poster presentation at the world's largest PV conference. In addition to this, a number of prototypes are produced together with other presentation material. The projects has been divided into three phases. The report is divided into these three phases. 1) Knowledge gathering and unravelling 2) Analysis, development and evaluation, workshop for students. 3) Promotion and demonstration of results The main results are: 4) The project has resulted in increased knowledge about the possibilities with photovoltaics in industrialized building processes. 5) A number of concepts have been developed to fit PV in the project phase of an industrialized building process. 6) The most promising concepts has been demonstrated as prototypes in different scale together with other presentation materials The project continues in SOL-IND2, with the purpose to prepare and carry out an integration of a PV system in an industrialized building process. A subsidy is granted in 2008 from the EFP to prepare the construction. (au)

  12. Elastic properties of Cs2HgBr4 and Cs2CdBr4 crystals

    International Nuclear Information System (INIS)

    Kityk, A.V.; Zadorozhna, A.V.; Shchur, Y.I.; Martynyuk-Lototska, Y.I.; Burak, Y.; Vlokh, O.G.

    1998-01-01

    Using ultrasonic velocity measurements, all components of the elastic constant matrix C ij , elastic compliances matrix S ij , and linear compressibility constants matrix K ij of orthorhombic Cs 2 HgBr 4 and Cs 2 CdBr 4 crystals have been determined over a wide temperature range, including the region of the phase transition from the normal to the incommensurate phase. Results obtained are considered within the framework of the phenomenological theory. Preliminary analysis of the acoustical properties at room temperature clearly indicates that both crystals are relatively important materials for acousto-optical applications. Copyright (1998) CSIRO Australia

  13. Exposure of a herbivorous fish to 134Cs and 137Cs from the riverbed following the Fukushima disaster

    International Nuclear Information System (INIS)

    Tsuboi, Jun-ichi; Abe, Shin-ichiro; Fujimoto, Ken; Kaeriyama, Hideki; Ambe, Daisuke; Matsuda, Keishi; Enomoto, Masahiro; Tomiya, Atsushi; Morita, Takami; Ono, Tsuneo; Yamamoto, Shoichiro; Iguchi, Kei'ichiro

    2015-01-01

    Ayu Plecoglossus altivelis, a herbivorous fish, is an important fishery resource and key component of the foodweb in many Japanese streams. Radionuclide contamination of this species is likely transferred to higher trophic levels, include humans, in the food chain. After the Fukushima accident in March 2011, ayu were exposed to highly contaminated silt while feeding on algae attached to the riverbed stones. To understand the route by which herbivorous fish are exposed to radionuclides, the activity concentrations of sum of 134 Cs and 137 Cs (radiocesium) were analyzed in riverbed samples (algae and silt) and in the internal organs and the muscle of ayu in five river systems in the Fukushima Prefecture between summer 2011 and autumn 2013. Although there was a positive correlation between the radiocesium activity concentrations in the muscle and the internal organs of ayu, the median activity concentration in the muscle was much lower than those in the internal organs. The activity concentrations of radiocesium in the riverbed samples and the internal organs and the muscle of ayu were correlated with contamination levels in soil samples taken from the watershed upstream of the sample sites. The results of the generalized linear mixed models suggest that the activity concentrations in both the internal organs and the muscle of ayu declined over time. Additionally, the activity concentrations in the internal organs were correlated with those in the riverbed samples that were collected around the same time as the ayu. The activity concentrations in the muscle were correlated with ayu body size. Our results suggest that ayu ingest 134 Cs and 137 Cs while grazing silt and algae from the riverbed, and a part of the 134 Cs and 137 Cs is assimilated into the muscle of the fish. - Highlights: • The radiocesium (sum of 134 Cs and 137 Cs) concentrations in a herbivorous fish were measured following the Fukushima disaster. • The muscle concentrations were correlated with

  14. Indústrias criativas: alternativa de desenvolvimento regional | Creative industries: regional development alternatives

    Directory of Open Access Journals (Sweden)

    Cláudia Sousa Leitão

    2011-10-01

    Full Text Available Resumo O presente artigo tem por objetivo apresentar uma proposta de fomento às cadeias produtivas das indústrias criativas no nordeste do Brasil, na perspectiva de uma discussão acerca de modelos alternativos de desenvolvimento regional. Para concretizar esse propósito, foi realizada uma pesquisa do tipo bibliográfica em livros, artigos de periódicos e documentos eletrônicos. O estudo inicia-se com a reflexão sobre os significados do desenvolvimento e suas conexões com a criatividade e a inovação. A pesquisa está estruturada em dois grandes eixos: o primeiro trata do conceito de indústrias criativas e do relato de suas potencialidades na geração de impactos econômicos, culturais, sociais e tecnológicos positivos na alavancagem do comércio doméstico e externo de bens e serviços criativos; o segundo apresenta uma discussão sobre desenvolvimento local e regional a partir do conceito de ‘bacia criativa’ com vistas a um novo enfoque territorial do nordeste brasileiro. A partir desses eixos, é proposto o Programa Nordeste Criativo que se constitui de duas linhas de ação fundamentais: o primeiro refere-se à estruturação e operacionalização de um o Observatório das Indústrias Criativas do Nordeste (OICNE voltado a produção e difusão do conhecimento sobre a economia criativa da região; o segundo diz respeito à criação e operacionalização dos Birôs de Negócios Criativos (BNC, ou seja, espaços físicos para o fomento de empreendimentos criativos sustentáveis e fortalecimento da cadeia produtiva das indústrias criativas. Assim, este estudo vem contribuir para a construção de um novo pensamento sobre o nordeste brasileiro. Por um lado, a institucionalização do Observatório das Indústrias Criativas se propõe a identificar o potencial criativo daquela região; do outro, os Birôs de Negócios Criativos objetivam consolidar as cadeias produtivas das indústrias criativas, enfatizando a profissionaliza

  15. Satellite bands of the RbCs molecule in the range of highly excited states

    Energy Technology Data Exchange (ETDEWEB)

    Rakić, Mario; Beuc, Robert; Skenderović, Hrvoje, E-mail: hrvoje@ifs.hr [Institute of Physics, Bijenička cesta 46, Zagreb 10000 (Croatia); Bouloufa-Maafa, Nadia; Dulieu, Olivier; Vexiau, Romain [Laboratoire Aimé Cotton, CNRS, Université Paris-Sud, ENS Cachan, Université Paris-Saclay, Bât. 505, Campus d’Orsay, Orsay Cedex 91405 (France); Pichler, Goran [Physics Department, Kuwait University, PO Box 5969, Safat—13060 (Kuwait)

    2016-05-28

    We report on the observation of three RbCs satellite bands in the blue and green ranges of the visible spectrum. Absorption measurements are performed using all-sapphire cell filled with a mixture of Rb and Cs. We compare high resolution absorption spectrum of Rb-Cs vapor mixture with pure Rb and Cs vapor spectra from the literature. After detailed analysis, the new satellite bands of RbCs molecule at 418.3 nm, 468.3, and 527.5 nm are identified. The origin of these bands is discussed by direct comparison with difference potentials derived from quantum chemistry calculations of RbCs potential energy curves. These bands originate from the lower Rydberg states of the RbCs molecule. This study thus provides further insight into photoassociation of lower Rydberg molecular states, approximately between Cs(7s) + Rb(5s) and Cs(6s) + Rb(6p) asymptotes, in ultracold gases.

  16. Distribution of 137Cs Radionuclide in Industrial Wastes Effluents of Gresik, East Java, Indonesia

    Directory of Open Access Journals (Sweden)

    Muslim

    2015-04-01

    Full Text Available The distribution of anthropogenic radionuclides 137Cs was measured from industrial waste effluent of Gresik to Gresik Sea in east Java, Indonesia. The activity of 37Cs detected at all stations was much lower than in northeast Japan both before and after NPP Fukushima accident. This indicated that in Gresik industrials waste did not consist of 137Cs. The lowest activity 137Cs occurred at the station nearest to the industrial waste effluent that contained some particle ions that were able to scavenge 137Cs and then precipate this radionuclide. Furthermore, the greatest 137Cs occured at the station that has high current speeds that stirred up sediment to release 137Cs in seawater as a secondary source. The lowest salinity did not effect on the activity of 137Cs even though the lowest salinity and activity 137Cs occured at the same station

  17. Early stages of Cs adsorption mechanism for GaAs nanowire surface

    Science.gov (United States)

    Diao, Yu; Liu, Lei; Xia, Sihao; Feng, Shu

    2018-03-01

    In this study, the adsorption mechanism of Cs adatoms on the (100) surface of GaAs nanowire with [0001] growth direction is investigated utilizing first principles method based on density function theory. The adsorption energy, work function, atomic structure and electronic property of clean surface and Cs-covered surfaces with different coverage are discussed. Results show that when only one Cs is adsorbed on the surface, the most favorable adsorption site is BGa-As. With increasing Cs coverage, work function gradually decreases and gets its minimum at 0.75 ML, then rises slightly when Cs coverage comes to 1 ML, indicating the existence of 'Cs-kill' phenomenon. According to further analysis, Cs activation process can effectively reduce the work function due to the formation of a downward band bending region and surface dipole moment directing from Cs adatom to the surface. As Cs coverage increases, the conduction band minimum and valence band maximum both shift towards lower energy side, contributed by the orbital hybridization between Cs-5s, Cs-5p states and Ga-4p, As-4s, As-4p states near Fermi level. The theoretical calculations and analysis in this study can improve the Cs activation technology for negative electron affinity optoelectronic devices based on GaAs nanowires, and also provide a reference for the further Cs/O or Cs/NF3 activation process.

  18. Color centers in heavily irradiated CsI(Tl) crystals

    International Nuclear Information System (INIS)

    Yakovlev, V.; Meleshko, A.; Trefilova, L.

    2008-01-01

    The absorption and luminescence properties of CsI(Tl) crystals colored by irradiation are studied by the method of the time-resolved spectroscopy. The scheme of the electron transitions in CsI(Tl) crystal is suggested to explain the appearance of the color centers under exposure to the near-UV light. It is established that either of the two types activator color centers holds the charge carrier with opposite sign. The model of the hole Tl 2+ v c - activator color center is suggested. According to the model the positive charge of Tl 2+ ion is compensated by the negative charge of a close cation vacancy v c - . The color center emission reveals in the cathode-luminescence spectrum of the colored CsI(Tl) crystal. The high-dose irradiation of CsI(Tl) crystal results in the reduction of the decay time of the near-thallium self-trapped excitons (STE) emission. The decay kinetics of Tl 2+ v c - emission contains the time components typical for the decay kinetics of near-thallium STE emission. The reason of the observed effects is the energy transfer from the near-thallium STE excitons to the color centers via the inductive-resonant mechanism

  19. Obstacles to superconductivity in CsCl phases

    International Nuclear Information System (INIS)

    Matthias, B.T.; Corenzwit, E.; Vandenberg, J.M.; Barz, H.; Maple, M.B.; Shelton, R.N.

    1976-01-01

    Reasons are put forward for why the CsCl structure is not a structure which is favorable for high-temperature superconductivity. The transition temperatures of several binary and ternary intermetallic compounds are given to illustrate the arguments. (B.R.H.)

  20. Theory of field induced incommensurability: CsFeCl3

    DEFF Research Database (Denmark)

    Lindgård, Per-Anker

    1986-01-01

    Using correlation theory for the singlet-doublet magnet CsFeCl3 in a magnetic field, a field induced incommensurate ordering along K-M is predicted without invoking dipolar effects. A fully self-consistent RPA theory gives Hc=44 kG in agreement with experiments at T=1.3K. Correlation and dipolar...