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1

INTERACCIONES ENTRE FÁRMACOS, PLANTAS MEDICINALES Y FITOFÁRMACOS  

Microsoft Academic Search

Introducción. Se consideran interacciones farmacológicas (IFs) a las modificaciones farmacocinéticas y\\/o farmacodinámicas que pueden ocurrir con un determinado fármaco cuando se administra de manera simultánea o sucesiva a otro fármaco, alimento, planta medicinal o fitofármaco. En toda interacción hay un fármaco cuya acción se modifica y otro, u otros fármacos, que desencadenan la interacción. Ex isten IFs que optimizan los

2

PSC 424: Kingdom Plantae  

NSDL National Science Digital Library

A 12th grade lesson on the characteristics of Kingdom Plantae, photosynthesis and cellular respiration Kingdom Plantae Plantae Unit PowerPoint Use these fun songs to review plant processes! Cell Respiration - Cellular Respiration Song Photosynthesis Rap

Webb, Mrs.

2011-10-12

3

CONVOCATORIA AL DIPLOMADO EN CULTURA FINANCIERA A DISTANCIA PARA UNIVERSIDADES E INSTITUCIONES EDUCATIVAS  

E-print Network

CONVOCATORIA AL DIPLOMADO EN CULTURA FINANCIERA A DISTANCIA PARA UNIVERSIDADES E INSTITUCIONES sobre el Sistema Financiero Mexicano para elevar su nivel de Cultura Financiera. PROP�SITO El propósito

Islas, León

4

Meeting educational needs in Costa Rica: The role of the distance teaching Universidad Estatal a Distancia  

NASA Astrophysics Data System (ADS)

In 1977 the government of Costa Rica established a new university, the Universidad Estatal a Distancia (UNED), and charged it with using distance teaching methods to meet the needs of new target groups as well as to alleviate some of the pressure of student demand on the existing three state-funded campus-based universities. This paper examines UNED's impact in relation to three categories of need: (1) student demand for university places; (2) demand from persons who had been previously disadvantaged in one way or another and hence unable to enter a university; and (3) demands generated by the needs of society for trained manpower. The paper evaluates UNED's success or failure in meeting these needs, in so far as it can be measured, and considers evidence based on the views of UNED's students regarding the success of the University in meeting their individual requirements. Throughout, the paper relates UNED's role within the higher education system in Costa Rica to those of the campus-based universities. In spite of the problems of teaching part-time students in a society in which leisure time is at a premium, the authors believe that UNED is to a large degree achieving its objectives by meeting previously unfulfilled needs at the higher education level in Costa Rica.

Rumble, Greville; Borden, George A.

1983-12-01

5

Plantas crucíferas y la prevención del cáncer  

Cancer.gov

Hoja informativa que resume los resultados de estudios sobre las plantas crucíferas y el cáncer. Incluye una lista de plantas crucíferas y las guías alimenticias recomendadas para el consumo de verduras.

6

Abono para la planta medicinal Cobra fuerza en la Isla el estudio del valor teraputico de la flora tropical.  

E-print Network

que "muchas plantas americanas (como el tabaco, que se preparaba de diferentes maneras), eran de a otros colegas e investigadores de la Escuela de Farmacia. Entre ellos, figuran Ana Vélez, Ricardo pasos para que este logre la acreditación de la Asociación Americana de Museos. Jardín con historia A su

Quirk, Gregory J.

7

Algoritmo Tabú para un problema de distribución de espacios = Tabu Search Algorithm for a Room Allocation Problem  

Microsoft Academic Search

La distribución de espacios es un problema que habitualmente se presenta en situaciones reales cuando se deben asignar simultáneamente diferentes conjuntos de espacios (despachos, habitaciones, salas, etc.) distribuidos entre edificios y\\/o plantas entre varios grupos de personas de tal forma que se minimicen las distancias entre los espacios asignados a cada grupo y la sede de dicho grupo. Esta situación

Alfredo G. Hernández-Díaz; Flor M. Guerrero Casas; Rafael Caballero Fernández; Julián Molina Luque

2006-01-01

8

INFLUENCIA DE LA ARIDEZ CLIMTICA, LA ALTITUD Y LA DISTANCIA AL MAR SOBRE EL CONTENIDO EN CLORURO Y EN  

E-print Network

EN 18 O DEL AGUA DE RECARGA Y DEL AGUA SUBTERRÁNEA EN MACIZOS CARBONATADOS COSTEROS DEL SE PENINSULAR es un buen ejemplo de acuífero carbonatado libre a escala regional con posibilidad de mezcla del agua de entre 0.5 y 1 g m-2 a-1 km-1 . El contenido en Cl del agua de recarga con escasa interacción agua

Nacional de San Luis, Universidad

9

Short communication Phylogeny of Calvin cycle enzymes supports Plantae monophyly  

E-print Network

enzymes involved in glycolysis and gluceoneogenesis that catalyze reactions similar to those in the CCShort communication Phylogeny of Calvin cycle enzymes supports Plantae monophyly Adrian Reyes), takes place in the plastid stroma. The eukaryotic CC involves 11 different enzymes (Table 1

Bhattacharya, Debashish

10

Captulo 1 Redes complejas de interacciones mutualistas planta-animal 17  

E-print Network

plantas. Además, gran número de especies animales dependen estrechamente de los recursos que las plantas animales para su reproducción exitosa ( Jordano 2000). Por lo tanto, estas interacciones sustentan la biodiversi- dad terrestre (Thompson 2006). Cuando analizamos las interacciones de animales y plantas en una

Jordano, Pedro

11

In planta passive sampling devices for assessing subsurface chlorinated solvents.  

PubMed

Contaminant concentrations in trees have been used to delineate groundwater contaminant plumes (i.e., phytoscreening); however, variability in tree composition hinders accurate measurement of contaminant concentrations in planta, particularly for long-term monitoring. This study investigated in planta passive sampling devices (PSDs), termed solid phase samplers (SPSs) to be used as a surrogate tree core. Characteristics studied for five materials included material-air partitioning coefficients (Kma) for chlorinated solvents, sampler equilibration time and field suitability. The materials investigated were polydimethylsiloxane (PDMS), low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), polyoxymethylene (POM) and plasticized polyvinyl chloride (PVC). Both PDMS and LLDPE samplers demonstrated high partitioning coefficients and diffusivities and were further tested in greenhouse experiments and field trials. While most of the materials could be used for passive sampling, the PDMS SPSs performed best as an in planta sampler. Such a sampler was able to accurately measure trichloroethylene (TCE) and tetrachloroethylene (PCE) concentrations while simultaneously incorporating simple operation and minimal impact to the surrounding property and environment. PMID:24268175

Shetty, Mikhil K; Limmer, Matt A; Waltermire, Kendra; Morrison, Glenn C; Burken, Joel G

2014-06-01

12

ESTUDO DE EXTRATOS DE PLANTAS MEDICINAIS NO DESENVOLVIMENTO DO TUMOR ASCÍTICO DE EHRLICH.  

E-print Network

??Neste trabalho, foi analisada a ação de sete plantas medicinais: Allamanda schottii, Aleurites moluccana, Bauhinia microstachya, Bromelia antiacantha, Calophyllum brasiliense, Ipomoea pes-caprea e Rubus rosaefolius… (more)

Juliane Seleme Brehmer

2005-01-01

13

THE EUROPEAN COOPERATIVE PROGRAMME FOR PLANT GENETIC RESOURCES (ECPGR) AND PLANTA EUROPA: AN OPPORTUNITY FOR SYNERGIES  

Microsoft Academic Search

The European Plant Conservation Strategy (EPCS) was developed by the Planta Europa Network in 2001 with the objective to provide a coherent framework for a range of plant conservation stakeholders from different organisations and countries in Europe to work together (Planta Europa, 2007). The Plant Genetic Resources for Food and Agriculture (PGRFA) community, working for the conservation and use of

Lorenzo Maggioni; Nigel Maxted; Jan Engels

14

Slection sexuelle 1: Conflit entre les sexes  

E-print Network

Sélection sexuelle 1: Conflit entre les sexes BIO3576 - Université d'Ottawa Prof. Gabriel Blouin son propre succès reproducteur · Il existe souvent des conflits d'intérêt entre le mâle et la femelle

Blouin-Demers, Gabriel

15

Planta (2007) 226:9891005 DOI 10.1007/s00425-007-0545-8  

E-print Network

sacs accumulate sugars and organic acid and therefore are the ultimate sink part of the fruit. Fruit) of the fruit. The TSS, together with the total fruit acidity are key fruit quality determinants and determinePlanta (2007) 226:989­1005 DOI 10.1007/s00425-007-0545-8 123 ORIGINAL ARTICLE The citrus fruit

Blumwald, Eduardo

16

LES CONFLITS DE COMPTENCE ENTRE TRIBUNAUX SPCIALISS  

E-print Network

ARTICLE LES CONFLITS DE COMP�TENCE ENTRE TRIBUNAUX SP�CIALIS�S : UNE QUESTION DE TEXTES OU DE les �ventuels conflits de comp�tence entre les tribunaux sp�cialis�s et qu'il leur apporte des l'objet d'une pr�sentation lors d'une table-ronde sur le th�me des conflits de comp�tence en droit

Spino, Claude

17

Assessment of fluorescein-based fluorescent dyes for tracing Neotyphodium endophytes in planta.  

PubMed

Fluorescent dyes were assessed for their ability to stain viable hyphae of the fungi Neotyphodium lolii and N. coenophialum, symbiotic endophytes of the Pooideae grasses Lolium perenne and Festuca arundinacea, respectively. The fluorescein-based fluorophores; fluorescein diacetate (FDA), 5(6)-carboxy-fluorescein diacetate (CFDA), 5-chloromethylfluorescein diacetate (CMFDA) and the chitin-binding stain, Calcofluor while M2R, were assessed for staining of endophyte hyphae in vitro from axenic fungal cultures and in planta, including epidermal leaf sheath peels, nodes, ovaries, embryos and meristems. CMFDA produced the greatest intensity of staining of fungal hyphae and gave excellent contrast in planta compared to the plant cells. Compared to the other dyes, CMFDA was also the least affected by photo bleaching and continued to fluoresce up to 2 h after initial excitation. None of the fluorescent dyes stained fungal hyphae in seed. PMID:22802389

Card, Stuart D; Tapper, Brian A; Lloyd-West, Catherine; Wright, Kathryn M

2013-01-01

18

Real-time PCR for the quantification of fungi in planta.  

PubMed

Methods enabling quantification of fungi in planta can be useful for a variety of applications. In combination with information on plant disease severity, indirect quantification of fungi in planta offers an additional tool in the screening of plants that are resistant to fungal diseases. In this chapter, a method is described for the quantification of DNA from a fungus in plant leaves using real-time PCR (qPCR). Although the method described entails quantification of the fungus Verticillium dahliae in lettuce leaves, the methodology described would be useful for other pathosystems as well. The method utilizes primers that are specific for amplification of a ?-tubulin sequence from V. dahliae and a lettuce actin gene sequence as a reference for normalization. This approach enabled quantification of V. dahliae in the amount of 2.5 fg/ng of lettuce leaf DNA at 21 days following plant inoculation. PMID:22183651

Klosterman, Steven J

2012-01-01

19

POSGRADO EN GESTIN Y OPERACIN DE PLANTAS DE TRATAMIENTO DE AGUAS  

E-print Network

EEES 2012/13 POSGRADO EN GESTI�N Y OPERACI�N DE PLANTAS DE TRATAMIENTO DE AGUAS #12;Joaquim Olivé agua con más de 140 años de experiencia. Agbar es un referente a nivel nacional e internacional con expertise de Agbar, ofreciendo a las empresas del agua y del medio ambiente soluciones y tecnologías basadas

Politècnica de Catalunya, Universitat

20

Screening for in planta protein-protein interactions combining bimolecular fluorescence complementation with flow cytometry  

PubMed Central

Understanding protein and gene function requires identifying interaction partners using biochemical, molecular or genetic tools. In plants, searching for novel protein-protein interactions is limited to protein purification assays, heterologous in vivo systems such as the yeast-two-hybrid or mutant screens. Ideally one would be able to search for novel protein partners in living plant cells. We demonstrate that it is possible to screen for novel protein-protein interactions from a random library in protoplasted Arabidopsis plant cells and recover some of the interacting partners. Our screen is based on capturing the bi-molecular complementation of mYFP between an YN-bait fusion partner and a completely random prey YC-cDNA library with FACS. The candidate interactions were confirmed using in planta BiFC assays and in planta FRET-FLIM assays. From this work, we show that the well characterized protein Calcium Dependent Protein Kinase 3 (CPK3) interacts with APX3, HMGB5, ORP2A and a ricin B-related lectin domain containing protein At2g39050. This is one of the first randomin planta screens to be successfully employed. PMID:22789293

2012-01-01

21

ENTR 406: SOCIAL ENTREPRENEURSHIP Syllabus Fall, 2013  

E-print Network

COURSE DESCRIPTION: This course explores issues in not-for-profit entrepreneurship such as ways social to explore these and related issues. TEXT: Bornstein, David and Susan Davis (2010), Social EntrepreneurshipENTR 406: SOCIAL ENTREPRENEURSHIP Syllabus ­ Fall, 2013 Class meets: MWF: 11:00-11:50; BCTR 212

Young, Paul Thomas

22

Efeitos cicatrizantes e antimicrobianos das plantas medicinais especies Porophyllum ruderale (Arnica), Arctium lappa minor (Bardana) e Plantago major (Tanchagem ou Cinco Nervos).  

E-print Network

??Foram estudadas as características fisico-químicas e teores de macro e micronutrientes das espécies das plantas medicinais Arctium lappa minor, Plantago major e Porophyllum ruderale. Através… (more)

Domingos Alves de Lima Neto

1991-01-01

23

Inhibition of Fungal and Bacterial Plant Pathogens In Vitro and In Planta with Ultrashort Cationic Lipopeptides?  

PubMed Central

Plant diseases constitute an emerging threat to global food security. Many of the currently available antimicrobial agents for agriculture are highly toxic and nonbiodegradable and cause extended environmental pollution. Moreover, an increasing number of phytopathogens develop resistance to them. Recently, we have reported on a new family of ultrashort antimicrobial lipopeptides which are composed of only four amino acids linked to fatty acids (A. Makovitzki, D. Avrahami, and Y. Shai, Proc. Natl. Acad. Sci. USA 103:15997-16002, 2006). Here, we investigated the activities in vitro and in planta and the modes of action of these short lipopeptides against plant-pathogenic bacteria and fungi. They act rapidly, at low micromolar concentrations, on the membranes of the microorganisms via a lytic mechanism. In vitro microscopic analysis revealed wide-scale damage to the microorganism's membrane, in addition to inhibition of pathogen growth. In planta potent antifungal activity was demonstrated on cucumber fruits and leaves infected with the pathogen Botrytis cinerea as well as on corn leaves infected with Cochliobolus heterostrophus. Similarly, treatment with the lipopeptides of Arabidopsis leaves infected with the bacterial leaf pathogen Pseudomonas syringae efficiently and rapidly reduced the number of bacteria. Importantly, in contrast to what occurred with many native lipopeptides, no toxicity was observed on the plant tissues. These data suggest that the ultrashort lipopeptides could serve as native-like antimicrobial agents economically feasible for use in plant protection. PMID:17720828

Makovitzki, Arik; Viterbo, Ada; Brotman, Yariv; Chet, Ilan; Shai, Yechiel

2007-01-01

24

Dynamic root exudation of sorgoleone and its in planta mechanism of action  

PubMed Central

The oily droplets exuded from the root hairs of sorghum are composed of a 1:1 ratio of sorgoleone and its lipid resorcinol analogue. The production of these droplets appears to be suppressed when c. 20 ?g of exudate mg?1 root dry weight accumulates at the tip of the root hairs. However, more exudate is produced following gentle washing of the roots with water, suggesting that the biosynthesis of lipid benzoquinones and resorcinols is a dynamic process. Sorgoleone interferes with several molecular target sites, including photosynthetic electron transport, in in vitro assays. However, the in planta mechanism of action of sorgoleone remains controversial because it is not clear whether this lipid benzoquinone exuding from the roots of sorghum is taken up by roots of the receiving plants and translocated to their foliage where it must enter the chloroplast and inhibit PSII in the thylakoid membrane. Experiments designed to test the in planta mode of action of sorgoleone demonstrated that it has no effect on the photosynthesis of older plants, but inhibits photosynthesis in germinating seedlings. Sorgoleone is not translocated acropetally in older plants, but can be absorbed through the hypocotyl and cotyledonary tissues. Therefore, the mode of action of sorgoleone may be the result of inhibition of photosynthesis in young seedlings in concert with inhibition of its other molecular target sites in older plants. PMID:19357432

Dayan, Franck E.; Howell, J'Lynn; Weidenhamer, Jeffrey D.

2009-01-01

25

EntreWorld: Resources for Entrepreneurs  

NSDL National Science Digital Library

Looking to make that first million? Then EntreWorld, provided by the Ewing Marion Kauffman Foundation, is an excellent place to begin. The site is highlighted by four sections: starting your business, running your business, rapid growth, and supporting entrepreneurship. The first two sections allow users to select from an interactive search box of several topics, and retrieve annotated articles from various Internet sources. The fourth contains a potpourri of information including annotated pointers to other Internet resources in six major subject areas (pointers are also available from the Business Center area of each major section). The number of article pointers, and the annotation of each, make this site worth a visit.

2007-05-14

26

Aplicaciones prácticas de la fisiología de los herbicidas en las plantas  

NSDL National Science Digital Library

Esta lección se focaliza en el impacto de las características de la planta y el herbicida, importantes para determinar el desempeño del herbicida. Se usarán imágenes visuales para ilustrar varios principios, incluyendo el sitio de absorción del herbicida en la planta, transporte, el sitio de acción sensible, y efectos del ambiente sobre el desempeño del herbicida. Esta información provee la base para maximizar la utilidad del uso de los herbicidas.

27

AtPTR1 and AtPTR5 Transport Dipeptides in Planta1[OA  

PubMed Central

Transporters for di- and tripeptides belong to the large and poorly characterized PTR/NRT1 (peptide transporter/nitrate transporter 1) family. A new member of this gene family, AtPTR5, was isolated from Arabidopsis (Arabidopsis thaliana). Expression of AtPTR5 was analyzed and compared with tissue specificity of the closely related AtPTR1 to discern their roles in planta. Both transporters facilitate transport of dipeptides with high affinity and are localized at the plasma membrane. Mutants, double mutants, and overexpressing lines were exposed to several dipeptides, including toxic peptides, to analyze how the modified transporter expression affects pollen germination, growth of pollen tubes, root, and shoot. Analysis of atptr5 mutants and AtPTR5-overexpressing lines showed that AtPTR5 facilitates peptide transport into germinating pollen and possibly into maturating pollen, ovules, and seeds. In contrast, AtPTR1 plays a role in uptake of peptides by roots indicated by reduced nitrogen (N) levels and reduced growth of atptr1 mutants on medium with dipeptides as the sole N source. Furthermore, overexpression of AtPTR5 resulted in enhanced shoot growth and increased N content. The function in peptide uptake was further confirmed with toxic peptides, which inhibited growth. The results show that closely related members of the PTR/NRT1 family have different functions in planta. This study also provides evidence that the use of organic N is not restricted to amino acids, but that dipeptides should be considered as a N source and transport form in plants. PMID:18753286

Komarova, Nataliya Y.; Thor, Kathrin; Gubler, Adrian; Meier, Stefan; Dietrich, Daniela; Weichert, Annett; Suter Grotemeyer, Marianne; Tegeder, Mechthild; Rentsch, Doris

2008-01-01

28

In planta transformation method for T-DNA transfer in orchids  

NASA Astrophysics Data System (ADS)

Transgenic plant technology is an efficient tool to study the function of gene(s) in plant. The most popular and widely used technique is Agrobacterium-mediated transformation in which cocultivation was done by immersing the plant tissues/organ in overnight bacterial cultured for about 30 minutes to one hour under in vitro condition. In this experiment, we developed more easier technique that omitted the in vitro step during cocultivation with Agrobacterium, namely in planta transformation method. Pollinaria (compact pollen mass of orchid) of Phalaenopsis amabilis and Spathoglottis plicata orchids were used as target explants that were immersed into bacterial culture for 30 minutes, then dried up the pollinaria, the transformed pollinaria was used to pollinate orchid flowers. The T-DNA used for this experiments were Ubipro?PaFT/A. tumefaciens GV3101 for P. amabilis and MeEF1?2 pro?GUS/ A. tumefaciens LBA 4404 for S.plicata. Seeds that were produced from pollinated flowers were grown onto 10 mg/l hygromicin containing NP (New Phalaenopsis) medium. The existance of transgene in putative transformant protocorm (developing orchid embryo) genome was confirmed using PCR with specific primers of either PaFT or GUS genes. Histochemical GUS assay was also performed to the putative transformants. The result showed that transformation frequencies were 2.1 % in P. amabilis, and 0,53% in S. plicata. These results indicates that in planta transformation method could be used for Agrobacterium-mediated genetic transformation, with advantage easier and more secure work from contaminants than that of the in vitro method.

Semiarti, Endang; Purwantoro, Aziz; Mercuriani, Ixora S.; Anggriasari, Anida M.; Jang, Seonghoe; Suhandono, Sony; Machida, Yasunori; Machida, Chiyoko

2014-03-01

29

Rubisco in planta kcat is regulated in balance with photosynthetic electron transport.  

PubMed

Site turnover rate (k(cat)) of Rubisco was measured in intact leaves of different plants. Potato (Solanum tuberosum L.) and birch (Betula pendula Roth.) leaves were taken from field-growing plants. Sunflower (Helianthus annuus L.), wild type (wt), Rubisco-deficient (-RBC), FNR-deficient (-FNR), and Cyt b(6)f deficient (-CBF) transgenic tobacco (Nicotiana tabacum L.) were grown in a growth chamber. Rubisco protein was measured with quantitative SDS-PAGE and FNR protein content with quantitative immunoblotting. The Cyt b(6)f level was measured in planta by maximum electron transport rate and the photosystem I (PSI) content was assessed by titration with far-red light. The CO(2) response of Rubisco was measured in planta with a fast-response gas exchange system at maximum ribulose 1,5-bisphosphate concentration. Reaction site k(cat) was calculated from V(m) and Rubisco content. Biological variation of k(cat) was significant, ranging from 1.5 to 4 s(-1) in wt, but was >6 s(-1) at 23 degrees C in -RBC leaves. The lowest k(cat) of 0.5 s(-1) was measured in -FNR and -CBF plants containing sufficient Rubisco but having slow electron transport rates. Plotting k(cat) against PSI per Rubisco site resulted in a hyperbolic relationship where wt plants are on the initial slope. A model is suggested in which Rubisco Activase is converted into an active ATP-form on thylakoid membranes with the help of a factor related to electron transport. The activation of Rubisco is accompanied by the conversion of the ATP-form into an inactive ADP-form. The ATP and ADP forms of Activase shuttle between thylakoid membranes and stromally-located Rubisco. In normal wt plants the electron transport-related activation of Activase is rate-limiting, maintaining 50-70% Rubisco sites in the inactive state. PMID:19661266

Eichelmann, H; Talts, E; Oja, V; Padu, E; Laisk, A

2009-01-01

30

Pathogenicity and In Planta Mycotoxin Accumulation Among Members of the Fusarium graminearum Species Complex on Wheat and Rice  

Microsoft Academic Search

Goswami, R. S., and Kistler, H. C. 2005. Pathogenicity and in planta mycotoxin accumulation among members of the Fusarium graminearum species complex on wheat and rice. Phytopathology 95:1397-1404. Fusarium head blight (FHB), or scab, is a destructive disease of small grains caused by members of the Fusarium graminearum species com- plex, comprised of at least nine distinct, cryptic species. Members

Rubella S. Goswami; H. Corby Kistler

2005-01-01

31

In planta engineering of viral RNA replicons: Efficient assembly by recombination of DNA modules delivered by Agrobacterium  

Microsoft Academic Search

We have developed an efficient, versatile, and user-friendly viral engineering and expression system that is based on in planta assembly of functional viral vectors from separate pro-vector modules. With this new system, instead of supplying a plant cell with a complete viral vector as a mature viral particle, an RNA or a linear DNA molecule, we use agrobacteria to deliver

Sylvestre Marillonnet; Anatoli Giritch; Mario Gils; Romy Kandzia; Victor Klimyuk; Yuri Gleba

2004-01-01

32

A rapid, novel and high-throughput identification of putative bell pepper transformants generated through in planta transformation approach  

Microsoft Academic Search

The recent progress on bell pepper transformation through in planta approach is incredibly simple with high transformation efficiencies in indigenous varieties. This method produces chimeric primary transformants (T0) hence, a large number of T0 plants and an efficient high throughput screening strategy is necessary to be developed. In the present investigation, we have standardized a rapid and highly efficient method

Arthikala Manoj Kumar; Kalpana N. Reddy; M. Manjulatha; Elizabeth S. Arellano; Rohini Sreevathsa; Girija Ganeshan

2011-01-01

33

Efficacy of phosphonic acid, metalaxyl-M and copper hydroxide against Phytophthora ramorum in vitro and in planta  

Microsoft Academic Search

The ability of metalaxyl-M, phosphonic acid in the form of phosphonate, and copper hydroxide to inhibit different stages in the life cycle of Phytophthora ramorum , the causal agent of sudden oak death (SOD), was tested in vitro using 12 isolates from the North American forest lineage. In addition, experiments were conducted in planta to study the ability of phosphonic

M. Garbelotto; T. Y. Harnik; D. J. Schmidt

2008-01-01

34

Rapid in planta evaluation of root expressed transgenes in chimeric soybean plants.  

PubMed

Production of stable transgenic plants is one factor that limits rapid evaluation of tissue specific transgene expression. To hasten the assessment of transgenes in planta, we evaluated the use of chimeric soybean seedlings expressing transgenic products in roots. Tap roots from four-day old seedlings (cultivars 'Jack' and KS4704) were excised and hairy roots were induced from hypocotyls via Agrobacterium rhizogenes-mediated transformation. Inoculated hypocotyls were screened on a MS-based medium containing either 200 mg/L kanamycin or 20 mg/L hygromycin. Beta-glucuronidase (GUS) activity assay indicated that highest GUS expression was observed in hypocotyls exposed to a 4-d pre-inoculation time, a neutral pH (7.0) for the co-cultivation medium. A 170-bp of the Fib-1 gene and 292-bp of the Y25C1A.5 gene fragments, both related to nematode reproduction and fitness, were cloned independently into pANDA35HK vector using a Gateway cloning strategy. The resulting RNAi constructs of the genes fragments were transformed into soybean using the chimeric hairy root system and evaluated for its effect on soybean cyst nematode (Heterodera glycines) fecundity. Confirmation of transformation was attained by polymerase chain reaction and Southern-blot analysis, and some potential for suppression of H. glycines reproduction was detected for the two constructs. This method takes on average four weeks to produce chimeric plants ready for transgene analysis. PMID:20012965

Li, Jiarui; Todd, Timothy C; Trick, Harold N

2010-02-01

35

Assessment of factors influencing the Agrobacterium-mediated in planta seed transformation of brinjal (Solanum melongena L.).  

PubMed

An efficient and reproducible in planta transformation method was developed for brinjal using seed as an explant. The brinjal seeds were infected with Agrobacterium tumefaciens EHA 105 harbouring pCAMBIA 1301-bar plasmid, and the transformants were selected against BASTA®. Several parameters influencing the in planta seed transformation such as pre-culture duration, acetosyringone concentration, surfactants, duration of sonication, vacuum pressure and vacuum duration have been evaluated. The putatively transformed (T 0) brinjal plants were screened by GUS histochemical analysis. Among the different combinations and concentrations tested, when the 18-h pre-cultured brinjal seeds were sonicated for 20 min and vacuum infiltered for 3 min at 500 mm of Hg in Agrobacterium suspension containing 100 ?M acetosyringone, 0.2 % Silwett L-77 favoured the Agrobacterium infection and showed maximum transformation efficiency. Among the five brinjal varieties evaluated, Arka Samhitha showed maximum transformation efficiency at 45.66 %. The transgene was successfully transmitted to progeny plants (T 1) which was evidenced by GUS histochemical analysis, polymerase chain reaction and Southern hybridisation. The in planta protocol developed in the present study would be beneficial to transfer the economically and nutritionally important genes into different varieties of brinjal, and the transgenic brinjal plants can be produced in less time (approximately 27 days). PMID:23852797

Subramanyam, Kondeti; Rajesh, Manoharan; Jaganath, Balusamy; Vasuki, Amirthalingam; Theboral, Jeevaraj; Elayaraja, Dhandapani; Karthik, Sivabalan; Manickavasagam, Markandan; Ganapathi, Andy

2013-09-01

36

An efficient in planta transformation of Jatropha curcas (L.) and multiplication of transformed plants through in vivo grafting.  

PubMed

An efficient and reproducible Agrobacterium-mediated in planta transformation was developed in Jatropha curcas. The various factors affecting J. curcas in planta transformation were optimized, including decapitation, Agrobacterium strain, pin-pricking, vacuum infiltration duration and vacuum pressure. Simple vegetative in vivo cleft grafting method was adopted in the multiplication of transformants without the aid of tissue culture. Among the various parameters evaluated, decapitated plants on pin-pricking and vacuum infiltrated at 250 mmHg for 3 min with the Agrobacterium strain EHA 105 harbouring the binary vector pGA 492 was proved to be efficient in all terms with a transformation efficiency of 62.66%. Transgene integration was evinced by the GUS histochemical analysis, and the GUS positive plants were subjected to grafting. Putatively transformed J. curcas served as "Scion" and the wild type J. curcas plant severed as "Stock". There was no occurrence of graft rejection and the plants were then confirmed by GUS histochemical analysis, polymerase chain reaction (PCR) and Southern hybridization. Genetic stability of the grafted plants was evaluated by using randomly amplified polymorphic DNA (RAPD), marker which showed 100% genetic stability between mother and grafted plants. Thus, an efficient in planta transformation and grafting based multiplication of J. curcas was established. PMID:24150424

Jaganath, Balusamy; Subramanyam, Kondeti; Mayavan, Subramanian; Karthik, Sivabalan; Elayaraja, Dhandapani; Udayakumar, Rajangam; Manickavasagam, Markandan; Ganapathi, Andy

2014-05-01

37

Optimisation des relations entre transpiration et photosynthse. Observations propos  

E-print Network

Optimisation des relations entre transpiration et photosynthèse. Observations à propos des 1977 une théorie d'optimisation des relations entre transpiration et photosynthèse chez les végétaux transpiration, F! le taux de photosynthèse nette et g, la conductance stomatiquc pour le CO2. Les études

Paris-Sud XI, Université de

38

HYBRIDATION ARTIFICIELLE ENTRE LA TRUITE ARC-EN-CIEL  

E-print Network

HYBRIDATION ARTIFICIELLE ENTRE LA TRUITE ARC-EN-CIEL (SALMO GAIRDNERI RICHARDSON) ET LE SAUMON COHO entre le Saumon coho mâle (Oncorhynchus kisutch WALBAUM) et la Truite arc-en-ciel (Salmo gairdneri les Salmonidés. En ce qui concerne la Truite arc-en-ciel (Salmo gairdneyi RICHARDSON) les résultats

Boyer, Edmond

39

MAMÍFEROS DEL ARROYO PERUCHO VERNA, ENTRE RÍOS, ARGENTINA  

Microsoft Academic Search

Mammals of the Arroyo Perucho Verna, Entre Ríos, Argentina. The study area is located in the middle-east of Entre Ríos; fitogeographically, the region is included in the Pampean Province, with relicts of the nearest Espinal Province and influenced by the Paranaese Province through the gallery forest of the streams. Eight field works were carried out (including trapping, owls pellets analysis,

Daniel E. Udrizar Sauthier; Agustín M. Abba; José B. Bender; Pablo M. Simon

2008-01-01

40

Floral benzenoid carboxyl methyltransferases: From in vitro to in planta function  

PubMed Central

Benzenoid carboxyl methyltransferases synthesize methyl esters (e.g., methyl benzoate and methyl salicylate), which are constituents of aromas and scents of many plant species and play important roles in plant communication with the surrounding environment. Within the past five years, eleven such carboxyl methyltransferases were isolated and most of them were comprehensively investigated at the biochemical, molecular and structural level. Two types of enzymes can be distinguished according to their substrate preferences: the SAMT-type enzymes isolated from Clarkia breweri, Stephanotis floribunda, Antirrhinum majus, Hoya carnosa, and Petunia hybrida, which have a higher catalytic efficiency and preference for salicylic acid, while BAMT-type enzymes from A. majus, Arabidopsis thaliana, Arabidopsis lyrata, and Nicotiana suaveolens prefer benzoic acid. The elucidation of C. breweri SAMT’s three-dimensional structure allowed a detailed modelling of the active sites of the carboxyl methyltransferases and revealed that the SAM binding pocket is highly conserved among these enzymes while the methyl acceptor binding site exhibits some variability, allowing a classification into SAMT-type and BAMT-type enzymes. The analysis of expression patterns coupled with biochemical characterization showed that these carboxyl methyltransferases are involved either in floral scent biosynthesis or in plant defense responses. While the latter can be induced by biotic or abiotic stress, the genes responsible for floral scent synthesis exhibit developmental and rhythmic expression pattern. The nature of the product and efficiency of its formation in planta depend on the availability of substrates, the catalytic efficiency of the enzyme toward benzoic acid and/or salicylic acid, and the transcriptional, translational, and post-translational regulation at the enzyme level. The biochemical properties of benzenoid carboxyl methyltransferases suggest that the genes involved in plant defenses might represent the ancestor for the presently existing floral genes which during evolution gained different expression profiles and encoded enzymes with the ability to accept structurally similar substrates. PMID:15946712

Effmert, Uta; Saschenbrecker, Sandra; Ross, Jeannine; Negre, Florence; Fraser, Chris M.; Noel, Joseph P.; Dudareva, Natalia; Piechulla, Birgit

2010-01-01

41

Bioinspired engineering study of Plantae vascules for self-healing composite structures  

PubMed Central

This paper presents the first conceptual study into creating a Plantae-inspired vascular network within a fibre-reinforced polymer composite laminate, which provides an ongoing self-healing functionality without incurring a mass penalty. Through the application of a ‘lost-wax’ technique, orthogonal hollow vascules, inspired by the ‘ray cell’ structures found in ring porous hardwoods, were successfully introduced within a carbon fibre-reinforced epoxy polymer composite laminate. The influence on fibre architecture and mechanical behaviour of single vascules (located on the laminate centreline) when aligned parallel and transverse to the local host ply was characterized experimentally using a compression-after-impact test methodology. Ultrasonic C-scanning and high-resolution micro-CT X-ray was undertaken to identify the influence of and interaction between the internal vasculature and impact damage. The results clearly show that damage morphology is influenced by vascule orientation and that a 10 J low-velocity impact damage event is sufficient to breach the vasculature; a prerequisite for any subsequent self-healing function. The residual compressive strength after a 10 J impact was found to be dependent upon vascule orientation. In general, residual compressive strength decreased to 70 per cent of undamaged strength when vasculature was aligned parallel to the local host ply and a value of 63 per cent when aligned transverse. This bioinspired engineering study has illustrated the potential that a vasculature concept has to offer in terms of providing a self-healing function with minimum mass penalty, without initiating premature failure within a composite structure. PMID:19955122

Trask, R. S.; Bond, I. P.

2010-01-01

42

Abscisic acid metabolizing rhizobacteria decrease ABA concentrations in planta and alter plant growth.  

PubMed

Although endogenous phytohormones such as abscisic acid (ABA) regulate root growth, and many rhizobacteria can modulate root phytohormone status, hitherto there have been no reports of rhizobacteria mediating root ABA concentrations and growth by metabolising ABA. Using a selective ABA-supplemented medium, two bacterial strains were isolated from the rhizosphere of rice (Oryza sativa) seedlings grown in sod-podzolic soil and assigned to Rhodococcus sp. P1Y and Novosphingobium sp. P6W using partial 16S rRNA gene sequencing and phenotypic patterns by the GEN III MicroPlate test. Although strain P6W had more rapid growth in ABA-supplemented media than strain P1Y, both could utilize ABA as a sole carbon source in batch culture. When rice seeds were germinated on filter paper in association with bacteria, root ABA concentration was not affected, but shoot ABA concentration of inoculated plants decreased by 14% (strain P6W) and 22% (strain P1Y). When tomato (Solanum lycopersicum) genotypes differing in ABA biosynthesis (ABA deficient mutants flacca - flc, and notabilis - not and the wild-type cv. Ailsa Craig, WT) were grown in gnotobiotic cultures on nutrient solution agar, rhizobacterial inoculation decreased root and/or leaf ABA concentrations, depending on plant and bacteria genotypes. Strain P6W inhibited primary root elongation of all genotypes, but increased leaf biomass of WT plants. In WT plants treated with silver ions that inhibit ethylene perception, both ABA-metabolising strains significantly decreased root ABA concentration, and strain P6W decreased leaf ABA concentration. Since these changes in ABA status also occurred in plants that were not treated with silver, it suggests that ethylene was probably not involved in regulating bacteria-mediated changes in ABA concentration. Correlations between plant growth and ABA concentrations in planta suggest that ABA-metabolising rhizobacteria may stimulate growth via an ABA-dependent mechanism. PMID:24270514

Belimov, Andrey A; Dodd, Ian C; Safronova, Vera I; Dumova, Valentina A; Shaposhnikov, Alexander I; Ladatko, Alexander G; Davies, William J

2014-01-01

43

Label-free chemically specific imaging in planta with stimulated Raman scattering microscopy.  

PubMed

The growing world population puts ever-increasing demands on the agricultural and agrochemical industries to increase agricultural yields. This can only be achieved by investing in fundamental plant and agrochemical research and in the development of improved analytical tools to support research in these areas. There is currently a lack of analytical tools that provide noninvasive structural and chemical analysis of plant tissues at the cellular scale. Imaging techniques such as coherent anti-Stokes Raman scattering (CARS) and stimulated Raman scattering (SRS) microscopy provide label-free chemically specific image contrast based on vibrational spectroscopy. Over the past decade, these techniques have been shown to offer clear advantages for a vast range of biomedical research applications. The intrinsic vibrational contrast provides label-free quantitative functional analysis, it does not suffer from photobleaching, and it allows near real-time imaging in 3D with submicrometer spatial resolution. However, due to the susceptibility of current detection schemes to optical absorption and fluorescence from pigments (such as chlorophyll), the plant science and agrochemical research communities have not been able to benefit from these techniques and their application in plant research has remained virtually unexplored. In this paper, we explore the effect of chlorophyll fluorescence and absorption in CARS and SRS microscopy. We show that with the latter it is possible to use phase-sensitive detection to separate the vibrational signal from the (electronic) absorption processes. Finally, we demonstrate the potential of SRS for a range of in planta applications by presenting in situ chemical analysis of plant cell wall components, epicuticular waxes, and the deposition of agrochemical formulations onto the leaf surface. PMID:23581493

Mansfield, Jessica C; Littlejohn, George R; Seymour, Mark P; Lind, Rob J; Perfect, Sarah; Moger, Julian

2013-05-21

44

Parler en famille : les échanges entre parents et enfants  

Microsoft Academic Search

[fre] Parler en famille : les échanges entre parents et enfants . L'étendue des sujets abordés par les discussions entre parents et enfants parvenus à l'âge adulte est un indicateur de l'intensité de leurs rapports. Il montre que davantage que l'âge, l'installation en couple tend à amenuiser ces liens : une rupture plus nette se manifeste chez les jeunes femmes,

Olivier Galland

1997-01-01

45

Pathologie vgtale Relation entre le pH des sols  

E-print Network

Pathologie végétale Relation entre le pH des sols et leur niveau de réceptivité à Fusarium solani pH des sols et leur niveau de réceptivité à Fusarium roseum var sambu- cinum et à F solani var sols de culture dont les pH s'échelonnent de 5,1 à 6,2, un lien direct existe entre les faibles valeurs

Paris-Sud XI, Université de

46

Deteccion facial basada en una distancia de Hausdorff normalizada  

E-print Network

al problema concreto. En el presente art´iculo mostramos un sistema de detecci´on de caras basado en incluya tan solo una. En el caso concreto de la localizaci´on facial, estos mismos estudios [1] in- dican

Escolano, Francisco

47

Significant reduction of BiFC non-specific assembly facilitates in planta assessment of heterotrimeric G-protein interactors.  

PubMed

Protein networks and signaling cascades are key mechanisms for intra- and intercellular signal transduction. Identifying the interacting partners of a protein can provide vital clues regarding its physiological role. The bimolecular fluorescence complementation (BiFC) assay has become a routine tool for in vivo analysis of protein-protein interactions and their subcellular location. Although the BiFC system has improved since its inception, the available options for in planta analysis are still subject to very low signal-to-noise ratios, and a systematic comparison of BiFC confounding background signals has been lacking. Background signals can obscure weak interactions, provide false positives, and decrease confidence in true positives. To overcome these problems, we performed an extensive in planta analysis of published BiFC fragments used in metazoa and plants, and then developed an optimized single vector BiFC system which utilizes monomeric Venus (mVenus) split at residue 210, and contains an integrated mTurquoise2 marker to precisely identify transformed cells in order to distinguish true negatives. Here we provide our streamlined double ORF expression (pDOE) BiFC system, and show that our advance in BiFC methodology functions even with an internally fused mVenus210 fragment. We illustrate the efficacy of the system by providing direct visualization of Arabidopsis MLO1 interacting with a calmodulin-like (CML) protein, and by showing that heterotrimeric G-protein subunits G? (GPA1) and G? (AGB1) interact in plant cells. We further demonstrate that GPA1 and AGB1 each physically interact with PLD?1 in planta, and that mutation of the so-called PLD?1 'DRY' motif abolishes both of these interactions. PMID:25187041

Gookin, Timothy E; Assmann, Sarah M

2014-11-01

48

The In Planta Transcriptome of Ralstonia solanacearum: Conserved Physiological and Virulence Strategies during Bacterial Wilt of Tomato  

PubMed Central

ABSTRACT Plant xylem fluid is considered a nutrient-poor environment, but the bacterial wilt pathogen Ralstonia solanacearum is well adapted to it, growing to 108 to 109 CFU/g tomato stem. To better understand how R. solanacearum succeeds in this habitat, we analyzed the transcriptomes of two phylogenetically distinct R. solanacearum strains that both wilt tomato, strains UW551 (phylotype II) and GMI1000 (phylotype I). We profiled bacterial gene expression at ~6 × 108 CFU/ml in culture or in plant xylem during early tomato bacterial wilt pathogenesis. Despite phylogenetic differences, these two strains expressed their 3,477 common orthologous genes in generally similar patterns, with about 12% of their transcriptomes significantly altered in planta versus in rich medium. Several primary metabolic pathways were highly expressed during pathogenesis. These pathways included sucrose uptake and catabolism, and components of these pathways were encoded by genes in the scrABY cluster. A UW551 scrA mutant was significantly reduced in virulence on resistant and susceptible tomato as well as on potato and the epidemiologically important weed host Solanum dulcamara. Functional scrA contributed to pathogen competitive fitness during colonization of tomato xylem, which contained ~300 µM sucrose. scrA expression was induced by sucrose, but to a much greater degree by growth in planta. Unexpectedly, 45% of the genes directly regulated by HrpB, the transcriptional activator of the type 3 secretion system (T3SS), were upregulated in planta at high cell densities. This result modifies a regulatory model based on bacterial behavior in culture, where this key virulence factor is repressed at high cell densities. The active transcription of these genes in wilting plants suggests that T3SS has a biological role throughout the disease cycle. PMID:22807564

Jacobs, Jonathan M.; Babujee, Lavanya; Meng, Fanhong; Milling, Annett; Allen, Caitilyn

2012-01-01

49

Hoffmann, Odile, 2008, "Entre etnizacin y racializacin: los avatares de la identificacin entre los afrodescendientes en Mxico", pp163-175 en Alicia Castellanos  

E-print Network

Hoffmann, Odile, 2008, "Entre etnización y racialización: los avatares de la identificación entre-Iztapalapa. Entre etnización y racialización: los avatares de la identificación entre los afrodescendientes en

Paris-Sud XI, Université de

50

España, entre Europa y América: un ensayo interpretativo  

Microsoft Academic Search

Este último artículo del dossier presenta algunas hipótesis de interpretación sobre la historia de la política exterior española durante el siglo xx.Los elementos centrales son la relación entre España y el resto de los Estados continentales; la imagen de las instituciones europeas; los sentimientos encontrados hacia Estados Unidos, su política y su sociedad; y las cambiantes percepciones, estrategias e intereses

Florentino Portero

2003-01-01

51

The Issue of Motivating Entre(Intra)Preneurial Behavior.  

ERIC Educational Resources Information Center

Six principles of motivating entre(intra)preneurial behavior are considered including the climate must allow the expression of such activity; motivation is broadly distributed in the general population; behavior is a function of its consequences; and motivating environments have an aura of excitement and experimentation. (DB)

Winslow, Erik K.

1990-01-01

52

O casamento entre pessoas do mesmo sexo. Sobre \\  

Microsoft Academic Search

O artigo constitui uma primeira reflexão sobre dados de uma pesquisa realizada em Barcelona. O debate público sobre o casamento entre pessoas do mesmo sexo revela as tensões sociais em torno do género, da sexualidade, da conjugalidade, da procriação e da parentalidade. As representações simbólicas e os discursos ideológicos sobre estes campos vêem revelado o seu carácter construído no momento

MIGUEL VALE DE ALMEIDA

2006-01-01

53

Plastid-localized amino acid biosynthetic pathways of Plantae are predominantly composed of non-cyanobacterial enzymes  

PubMed Central

Studies of photosynthetic eukaryotes have revealed that the evolution of plastids from cyanobacteria involved the recruitment of non-cyanobacterial proteins. Our phylogenetic survey of >100 Arabidopsis nuclear-encoded plastid enzymes involved in amino acid biosynthesis identified only 21 unambiguous cyanobacterial-derived proteins. Some of the several non-cyanobacterial plastid enzymes have a shared phylogenetic origin in the three Plantae lineages. We hypothesize that during the evolution of plastids some enzymes encoded in the host nuclear genome were mistargeted into the plastid. Then, the activity of those foreign enzymes was sustained by both the plastid metabolites and interactions with the native cyanobacterial enzymes. Some of the novel enzymatic activities were favored by selective compartmentation of additional complementary enzymes. The mosaic phylogenetic composition of the plastid amino acid biosynthetic pathways and the reduced number of plastid-encoded proteins of non-cyanobacterial origin suggest that enzyme recruitment underlies the recompartmentation of metabolic routes during the evolution of plastids. PMID:23233874

Reyes-Prieto, Adrian; Moustafa, Ahmed

2012-01-01

54

Correlations between camptothecin and related metabolites in Camptotheca acuminata reveal similar biosynthetic principles and in planta synergistic effects.  

PubMed

Camptothecin (CPT), 9-methoxycamptothecin (9-MeO-CPT), and 10-hydroxycamptothecin (10-OH-CPT) are potent antineoplastic metabolites. We analyzed these metabolites in Camptotheca acuminata sampled from Germany and China, using LC-MS/MS and LC-ESI-HRMS/MS, coupled with chemometrics. Multivariate analysis revealed that fresh stems of C. acuminata from China had the highest comprehensive metabolite load. Significant positive correlations of CPT with 9-MeO-CPT and 10-OH-CPT were observed by Kruskal's multidimensional scaling and principal component analysis. Linear discriminant analysis and hierarchical agglomerative cluster analysis revealed that C. acuminata from China was separated from others. These positive correlations indicate that these metabolites are biosynthesized similarly and operate synergistically in planta. PMID:21238548

Kusari, Souvik; Zühlke, Sebastian; Spiteller, Michael

2011-04-01

55

Development of fiber optic spectroscopy for in-vitro and in-planta detection of fluorescent proteins  

NASA Astrophysics Data System (ADS)

The objective of this project is to apply photonics technology to bio-safety management of genetically modified (GM) plants. The conventional method for screening GM plants is through selection using antibiotic resistance markers. There is public concern with such approaches and these are associated with food safety issues, escape of antibiotic resistance genes to pathogenic microorganisms and interference with antibiotic therapy. Thus, the strategy taken in this project is to replace antibiotic resistance markers with fluorescent protein markers that allow for rapid and non-invasive optical screening of genetically modified plants. In this paper, fibre optic spectroscopy was developed to detect and quantify recombinant green (EGFP) and red (DsRED) fluorescent proteins in vitro and in planta. In vitro detection was first carried out to optimize the sensitivity of the optical system. The bacterial expression vectors carrying the coding regions of EGFP and DsRED were introduced into Escherichia coli host cells and fluorescent proteins were produced following induction with IPTG. Soluble EGFP and DsRED proteins were isolated from lysed bacterial cells and serially diluted for quantitative analysis by fibre optic spectroscopy using different light sources, namely, blue LED (475 nm), tungsten halogen (350 - 1000 nm) and double frequency Nd:YAG green laser (532 nm). Fluorescence near the expected emission wavelengths could be detected up to 320X dilution for EGFP and DsRED with blue LED and 532 nm green laser, respectively, as the excitation source. Tungsten halogen was found to be unsuitable for excitation of both EGFP and DsRED. EGFP was successfully purified by size separation under non-denaturing electrophoretic conditions and quantified. The minimum concentration of EGFP detectable with blue LED excitation was 5 mg/ml. To determine the capability of spectroscopy detection in planta, transgenic potato hairy roots and whole modified plant lines expressing the fluorescent markers were regenerated. T

Liew, Oi Wah; Chen, Jun-Wei; Asundi, Anand K.

2001-10-01

56

Cambios potenciales en los usos recreativos de la costa del río Uruguay ante la instalación de la planta de celulosa Fray Bentos: un ejercicio de valoración contingente  

Microsoft Academic Search

Se presenta una valuación del impacto que podría producir la planta de celulosa de Fray Bentos sobre el turismo recreativo en el río Uruguay por cambios en el paisaje y en la calidad de las aguas. Los datos provienen de una encuesta realizada en diciembre 2006 y la metodología es de valoración de comportamiento contingente. Surge del trabajo que los

Mariana Conte Grand; Martina Chidiak

2010-01-01

57

FUSION ENTRE VSICULES P H 0SPHOLIPIDIQUES C. TAUPIN (*)  

E-print Network

FUSION ENTRE V�SICULES P H 0SPHOLIPIDIQUES C. TAUPIN (*) Stauffer Laboratory for Physical Chemistry comportent des études a) de l'augmentation du volume interne due à la fusion, b) de la décroissance du différentes. Divers agents induisant la fusion ont été étudiés. Abstract. - A variety of experiments show

Paris-Sud XI, Université de

58

un lien entre la voie endolysosomale et la mort cellulaire  

E-print Network

Alix un lien entre la voie endolysosomale et la mort cellulaire Co-directeurs de thèse : Dr Chapitre 1. La mort cellulaire programmée : les différents acteurs et mécanismes moléculaires I. Caractérisation morphologiques des différents processus de mort cellulaire 1 II. De C.elegans aux mammifères 3 III

Paris-Sud XI, Université de

59

Coopration entre Optimisation Combinatoire et Statistiques pour la Slection animale  

E-print Network

Coopération entre Optimisation Combinatoire et Statistiques pour la Sélection animale Julie Hamon1 animale La génomique a grandement évolué avec le développement récent des technologies haut- débit en génétique animale) [2]. Cependant, afin d'obtenir un modèle prédictif compréhensible, et interprétable, une

60

RPARTITION DES ACIDES GRAS INGRS ENTRE VAISSEAUX SANGUINS  

E-print Network

R�PARTITION DES ACIDES GRAS ING�R�S ENTRE VAISSEAUX SANGUINS ET LACT�ALES CENTRALES DANS LE STROMA du stroma des villosités intestinales est déterminée par certains facteurs et ne se fait pas au dans le stroma et d'étudier les facteurs susceptibles de conditionner la répartition chyloportale. L

Boyer, Edmond

61

The in planta transcriptome of Ralstonia solanacearum: conserved physiological and virulence strategies during bacterial wilt of tomato.  

PubMed

Plant xylem fluid is considered a nutrient-poor environment, but the bacterial wilt pathogen Ralstonia solanacearum is well adapted to it, growing to 10(8) to 10(9) CFU/g tomato stem. To better understand how R. solanacearum succeeds in this habitat, we analyzed the transcriptomes of two phylogenetically distinct R. solanacearum strains that both wilt tomato, strains UW551 (phylotype II) and GMI1000 (phylotype I). We profiled bacterial gene expression at ~6 × 10(8) CFU/ml in culture or in plant xylem during early tomato bacterial wilt pathogenesis. Despite phylogenetic differences, these two strains expressed their 3,477 common orthologous genes in generally similar patterns, with about 12% of their transcriptomes significantly altered in planta versus in rich medium. Several primary metabolic pathways were highly expressed during pathogenesis. These pathways included sucrose uptake and catabolism, and components of these pathways were encoded by genes in the scrABY cluster. A UW551 scrA mutant was significantly reduced in virulence on resistant and susceptible tomato as well as on potato and the epidemiologically important weed host Solanum dulcamara. Functional scrA contributed to pathogen competitive fitness during colonization of tomato xylem, which contained ~300 µM sucrose. scrA expression was induced by sucrose, but to a much greater degree by growth in planta. Unexpectedly, 45% of the genes directly regulated by HrpB, the transcriptional activator of the type 3 secretion system (T3SS), were upregulated in planta at high cell densities. This result modifies a regulatory model based on bacterial behavior in culture, where this key virulence factor is repressed at high cell densities. The active transcription of these genes in wilting plants suggests that T3SS has a biological role throughout the disease cycle. IMPORTANCE Ralstonia solanacearum is a widespread plant pathogen that causes bacterial wilt disease. It inflicts serious crop losses on tropical farmers, with major economic and human consequences. It is also a model for the many destructive microbes that colonize the water-conducting plant xylem tissue, which is low in nutrients and oxygen. We extracted bacteria from infected tomato plants and globally identified the biological functions that R. solanacearum expresses during plant pathogenesis. This revealed the unexpected presence of sucrose in tomato xylem fluid and the pathogen's dependence on host sucrose for virulence on tomato, potato, and the common weed bittersweet nightshade. Further, R. solanacearum was highly responsive to the plant environment, expressing several metabolic and virulence functions quite differently in the plant than in pure culture. These results reinforce the utility of studying pathogens in interaction with hosts and suggest that selecting for reduced sucrose levels could generate wilt-resistant crops. PMID:22807564

Jacobs, Jonathan M; Babujee, Lavanya; Meng, Fanhong; Milling, Annett; Allen, Caitilyn

2012-01-01

62

MORFOLOGÍA DE PLANTA Y FENOLOGÍA DE GENOTIPOS DE CHILE HABANERO (CAPSICUM CHINENSE JACQ.) COLECTADOS EN YUCATÁN, MÉXICO  

Microsoft Academic Search

RESUMEN El cultivo de Chile habanero (Capsicum chinense Jacq.) en el estado de Yucatán ocupa el segundo lugar de importancia en cuanto a la superficie de siembra de hortalizas, después del tomate (Lycopersicum esculentum Mill.), debido a que en la actualidad se establecen entre 800 y 1000 has. Esta ha propiciado la introducción de semilla de regiones ajenas al estado

José Jorge Gerardo Trujillo-Aguirre; Omar Gutiérrez-Alonso; Capullo del Rocio Perez-Llanes

63

A Rapid, Highly Efficient and Economical Method of Agrobacterium-Mediated In planta Transient Transformation in Living Onion Epidermis  

PubMed Central

Transient transformation is simpler, more efficient and economical in analyzing protein subcellular localization than stable transformation. Fluorescent fusion proteins were often used in transient transformation to follow the in vivo behavior of proteins. Onion epidermis, which has large, living and transparent cells in a monolayer, is suitable to visualize fluorescent fusion proteins. The often used transient transformation methods included particle bombardment, protoplast transfection and Agrobacterium-mediated transformation. Particle bombardment in onion epidermis was successfully established, however, it was expensive, biolistic equipment dependent and with low transformation efficiency. We developed a highly efficient in planta transient transformation method in onion epidermis by using a special agroinfiltration method, which could be fulfilled within 5 days from the pretreatment of onion bulb to the best time-point for analyzing gene expression. The transformation conditions were optimized to achieve 43.87% transformation efficiency in living onion epidermis. The developed method has advantages in cost, time-consuming, equipment dependency and transformation efficiency in contrast with those methods of particle bombardment in onion epidermal cells, protoplast transfection and Agrobacterium-mediated transient transformation in leaf epidermal cells of other plants. It will facilitate the analysis of protein subcellular localization on a large scale. PMID:24416168

Xu, Kedong; Huang, Xiaohui; Wu, Manman; Wang, Yan; Chang, Yunxia; Liu, Kun; Zhang, Ju; Zhang, Yi; Zhang, Fuli; Yi, Liming; Li, Tingting; Wang, Ruiyue; Tan, Guangxuan; Li, Chengwei

2014-01-01

64

Cloning and characterization of pl1 encoding an in planta-secreted pectate lyase of Fusarium oxysporum.  

PubMed

A pectate lyase (PL1) from the tomato vascular wilt pathogen Fusarium oxysporum f.sp. lycopersici was previously characterized, and evidence was obtained for its production in planta. The gene encoding PL1 was isolated from a genomic library of F. oxysporum f. sp. lycopersici. Pl1 encodes a 240 amino-acid polypeptide with one putative N-glycosylation site and a 15 amino-acid N-terminal signal peptide. PL1 showed 89%, 67%, 55% and 56% identity with the products of the Fusarium solani f.sp. pisi pelA, pelB, pelC and pelD genes, respectively. A single copy of the gene was detected in different formae speciales of F. oxysporum. The pl1 transcript was observed during growth on polygalacturonic acid sodium salt and tomato vascular tissue, but not on pectin or glucose. RT-PCR showed pl1 expression in roots and stems of tomato plants infected by F. oxysporum f.sp. lycopersici. PMID:10022947

Huertas-González, M D; Ruiz-Roldán, M C; García Maceira, F I; Roncero, M I; Di Pietro, A

1999-02-01

65

Agrobacterium tumefaciens deploys a superfamily of type VI secretion DNase effectors as weapons for interbacterial competition in planta.  

PubMed

The type VI secretion system (T6SS) is a widespread molecular weapon deployed by many Proteobacteria to target effectors/toxins into both eukaryotic and prokaryotic cells. We report that Agrobacterium tumefaciens, a soil bacterium that triggers tumorigenesis in plants, produces a family of type VI DNase effectors (Tde) that are distinct from previously known polymorphic toxins and nucleases. Tde exhibits an antibacterial DNase activity that relies on a conserved HxxD motif and can be counteracted by a cognate immunity protein, Tdi. In vitro, A. tumefaciens T6SS could kill Escherichia coli but triggered a lethal counterattack by Pseudomonas aeruginosa upon injection of the Tde toxins. However, in an in planta coinfection assay, A. tumefaciens used Tde effectors to attack both siblings cells and P. aeruginosa to ultimately gain a competitive advantage. Such acquired T6SS-dependent fitness in vivo and conservation of Tde-Tdi couples in bacteria highlights a widespread antibacterial weapon beneficial for niche colonization. PMID:24981331

Ma, Lay-Sun; Hachani, Abderrahman; Lin, Jer-Sheng; Filloux, Alain; Lai, Erh-Min

2014-07-01

66

A Real-Time Fluorogenic Assay for the Visualization of Glycoside Hydrolase Activity in Planta1[C][OA  

PubMed Central

There currently exists a diverse array of molecular probes for the in situ localization of polysaccharides, nucleic acids, and proteins in plant cells, including reporter enzyme strategies (e.g. protein-glucuronidase fusions). In contrast, however, there is a paucity of methods for the direct analysis of endogenous glycoside hydrolases and transglycosidases responsible for cell wall remodeling. To exemplify the potential of fluorogenic resorufin glycosides to address this issue, a resorufin ?-glycoside of a xylogluco-oligosaccharide (XXXG-?-Res) was synthesized as a specific substrate for in planta analysis of XEH activity. The resorufin aglycone is particularly distinguished for high sensitivity in muro assays due to a low pKa (5.8) and large extinction coefficient (? 62,000 m?1cm?1), long-wavelength fluorescence (excitation 571 nm/emission 585 nm), and high quantum yield (0.74) of the corresponding anion. In vitro analyses demonstrated that XXXG-?-Res is hydrolyzed by the archetypal plant XEH, nasturtium (Tropaeolum majus) NXG1, with classical Michaelis-Menten substrate saturation kinetics and a linear dependence on both enzyme concentration and incubation time. Further, XEH activity could be visualized in real time by observing the localized increase in fluorescence in germinating nasturtium seeds and Arabidopsis (Arabidopsis thaliana) inflorescent stems by confocal microscopy. Importantly, this new in situ XEH assay provides an essential complement to the in situ xyloglucan endotransglycosylase assay, thus allowing delineation of the disparate activities encoded by xyloglucan endotransglycosylase/hydrolase genes directly in plant tissues. The observation that XXXG-?-Res is also hydrolyzed by diverse microbial XEHs indicates that this substrate, and resorufin glycosides in general, may find broad applicability for the analysis of wall restructuring by polysaccharide hydrolases during morphogenesis and plant-microbe interactions. PMID:19783642

Ibatullin, Farid M.; Banasiak, Alicja; Baumann, Martin J.; Greffe, Lionel; Takahashi, Junko; Mellerowicz, Ewa J.; Brumer, Harry

2009-01-01

67

Bikinin-like inhibitors targeting GSK3/Shaggy-like kinases: characterisation of novel compounds and elucidation of their catabolism in planta  

PubMed Central

Background Plant GSK-3/Shaggy-like kinases are key players in brassinosteroid (BR) signalling which impact on plant development and participate in response to wounding, pathogens and salt stress. Bikinin was previously identified in a chemical genetics screen as an inhibitor targeting these kinases. To dissect the structural elements crucial for inhibition of GSK-3/Shaggy-like kinases by bikinin and to isolate more potent compounds we synthesised a number of related substances and tested their inhibitory activity in vitro and in vivo using Arabidopsis thaliana. Results A pyridine ring with an amido succinic acid residue in position 2 and a halogen in position 5 were crucial for inhibitory activity. The compound with an iodine substituent in position 5, denoted iodobikinin, was most active in inhibiting BIN2 activity in vitro and efficiently induced brassinosteroid-like responses in vivo. Its methyl ester, methyliodobikinin, showed improved cell permeability, making it highly potent in vivo although it had lower activity in vitro. HPLC analysis revealed that the methyl residue was rapidly cleaved off in planta liberating active iodobikinin. In addition, we provide evidence that iodobikinin and bikinin are inactivated in planta by conjugation with glutamic acid or malic acid and that the latter process is catalysed by the malate transferase SNG1. Conclusion Brassinosteroids participate in regulation of many aspects of plant development and in responses to environmental cues. Thus compounds modulating their action are valuable tools to study such processes and may be an interesting opportunity to modify plant growth and performance in horticulture and agronomy. Here we report the development of bikinin derivatives with increased potency that can activate BR signalling and mimic BR action. Methyliodobikinin was 3.4 times more active in vivo than bikinin. The main reason for the superior activity of methyliodobikinin, the most potent compound, is its enhanced plant tissue permeability. Inactivation of bikinin and its derivatives in planta involves SNG1, which constitutes a novel pathway for modification of xenobiotic compounds. PMID:24947596

2014-01-01

68

INTERACTIONS ENTRE GRAVITON ET LECTRON EN THORIE FONCTIONNELLE Par PHAM XUAN YEM,  

E-print Network

165 INTERACTIONS ENTRE GRAVITON ET �LECTRON EN TH�ORIE FONCTIONNELLE Par PHAM XUAN YEM, Physique mathématique, Institut Henri-Poincaré, Paris. Résumé. 2014 Les interactions entre un électron et un graviton se de gravitationassociés au graviton agissent sur le mouvement de l'électron. Abstract. 2014

Paris-Sud XI, Université de

69

Characterization of a highly repeated DNA sequence (SC1) from the arbuscular mycorrhizal fungus Scutellospora castanea and its detection in planta.  

PubMed Central

A highly repeated DNA sequence from the genome of an arbuscular mycorrhizal fungus has been isolated and characterized. This 1,202-bp sequence (SC1) represents about 0.24% of the Scutellospora castanea genome, estimated to be 1 pg by flow cytometry. The sequence was shown to be a Scutellospora-specific probe in Southern blots and dot blot hybridizations. After complete sequencing of SC1, PCR primers were generated and used to amplify a 907-bp fragment from spores of S. castanea or from colonized Allium porrum roots. No amplification products were obtained with DNA from either spores or mycorrhizal root of other species of arbuscular mycorrhizal fungi. These primers were sufficiently specific for unequivocal detection of S. castanea in planta. PMID:8779584

Zeze, A; Hosny, M; Gianinazzi-Pearson, V; Dulieu, H

1996-01-01

70

Forward genetic in planta screen for identification of plant-protective traits of Sphingomonas sp. strain Fr1 against Pseudomonas syringae DC3000.  

PubMed

Sphingomonas sp. strain Fr1 has recently been shown to protect Arabidopsis thaliana against the bacterial leaf pathogen Pseudomonas syringae DC3000. Here, we describe a forward genetic in planta screen to identify genes in Sphingomonas sp. Fr1 necessary for this effect. About 5,000 Sphingomonas sp. Fr1 mini-Tn5 mutants were assayed for a defect in plant protection against a luxCDABE-tagged P. syringae DC3000 derivative in a space-saving 24-well plate system. The bioluminescence of the pathogen was used as the indicator of pathogen proliferation and allowed for the identification of Sphingomonas sp. Fr1 mutants that had lost the ability to restrict pathogen growth before disease symptoms were visible. Potential candidates were validated using the same miniaturized experimental system. Of these mutants, 10 were confirmed as plant protection defective yet colonization competent. The mutants were subsequently evaluated in a previously described standard microbox system, and plants showed enhanced disease phenotypes after pathogen infection relative to those inoculated with the parental strain as a control. However, the disease severities were lower than those observed for control plants that were grown axenically prior to pathogen challenge, which suggests that several traits may contribute to plant protection. Transposon insertion sites of validated mutants with defects in plant protection were determined and mapped to 7 distinct genomic regions. In conclusion, the established screening protocol allowed us to identify mutations that affect plant protection, and it opens the possibility to uncover traits important for in planta microbe-microbe interactions. PMID:22660707

Vogel, Christine; Innerebner, Gerd; Zingg, Judith; Guder, Jan; Vorholt, Julia A

2012-08-01

71

DISTÚRBIOS NUTRICIONAIS INDUZIDOS PELA ADUBAÇÃO DE FÓSFORO E FERRO EM PLANTAS JOVENS DE GRÁPIA (Apuleia leiocarpa) NUTRITIONAL DISTURBANCE INDUCED BY PHOSPHORUS AND IRON FERTILIZATION ON YOUNG PLANTS OF GRÁPIA (Apuleia leiocarpa)  

Microsoft Academic Search

A grápia (Apuleia leiocarpa Vog. Macbride) é uma espécie florestal nativa de grande interesse madeireiro, encontrando-se, atualmente, bastante dizimada. Em trabalhos anteriores, foi observado que as folhas novas de plantas jovens de grápia apresentaram sintomas visuais indicativos de deficiência de Fe na presença de doses crescentes de P. O presente trabalho teve como objetivo caracterizar os efeitos da interação da

Evandro Luiz Missio; Fernando Teixeira Nicoloso

2005-01-01

72

Um estudo do poliformismo 5HT2A como elo entre tabagismo e depressão.  

E-print Network

??Objetivo: Verificar a relação entre o polimorfismo genético 5HT2A, tabagismo e depressão. Métodos: Através de um delineamento transversal, duplo-cego, foram selecionados, no período de outubro… (more)

Ana Maria Bellani Migott

2007-01-01

73

Le lien entre la performance sociale des entreprises et la gestion des résultats comptables  

Microsoft Academic Search

L'objectif de ce papier est d'explorer le comportement du gestionnaire en matière de gestion des résultats comptables dans les entreprises canadiennes socialement performantes. En se basant sur la théorie instrumentale des parties prenantes et la littérature relative au lien présumé entre la PFE et la GRC, nous supposons l'existence d'une relation négative entre le niveau de PSE et la GRC.

Rim Makni Gargouri; Claude Francoeur; Ridha Shabou

2008-01-01

74

Relation entre notation sociale et structure financière des entreprises : une étude empirique  

Microsoft Academic Search

Relation entre notation sociale et structure financière des entreprises : une étude empirique Cet article étudie le lien entre la structure du capital des entreprises et leur notation sociale. Notre modèle théorique montre que les entreprises les moins éthiques, pour échapper à la sanction du marché financier, recourent plus massivement à l'endettement, notamment à l'emprunt bancaire. En effet, l'intérêt croissant

I. Girerd-Potin; P. Louvet; Garces-Jimenez S

2008-01-01

75

VRIFICATION EXPRIMENTALEDES RELATIONS DE KRAMERS-KRONIG ENTRE INDICES DE RFRACTION ET D'EXTINCTION  

E-print Network

691 V�RIFICATION EXP�RIMENTALEDES RELATIONS DE KRAMERS-KRONIG ENTRE INDICES DE R�FRACTION ET D'EXTINCTION expérimentalement les relations de Kramers-Kronig, entre les indices de réfraction et d'extinction. Pour ceci nous'indice de réfraction mesurée expérimentalement et de la transformée de Kramers-Kronig de l'indice d'extinction

Boyer, Edmond

76

Laser Photoacoustic Detection Allows in Planta Detection of Nitric Oxide in Tobacco following Challenge with Avirulent and Virulent Pseudomonas syringae Pathovars1  

PubMed Central

We demonstrate the use of laser photoacoustic detection (LPAD) as a highly sensitive method to detect in planta nitric oxide (.NO) production from tobacco (Nicotiana tabacum). LPAD calibration against .NO gas demonstrated a linear relationship over 2 orders of magnitude with a detection threshold of <20 pmol h?1 (1 part per billion volume [ppbv]). The specificity of the photoacoustic signal for .NO when adding gas or the .NO donor, sodium nitroprusside, on injection into plant leaves, was demonstrated by its abolition with O3 (.NO + O3 ? NO2 + O2). The utility of the LPAD method was shown by examination of a nonhost hypersensitive response and a disease induced by Pseudomonas syringae (P. s.) pv phaseolicola and P. s. pv tabaci in tobacco. .NO was detected within 40 min of challenge with P. s. pv phaseolicola, some 5 h before the initiation of visible tissue collapse. The wildfire tobacco pathogen P. s. pv tabaci initiated .NO generation at 2 h postinfection. The use of .NO donors, the scavenger CPTIO ([4-carboxyphenyl]-4,5-dihydro-4,4,5,5-tetramethyl-3-oxide), and the mammalian nitric oxide synthase inhibitor l-NMMA (NG-monomethyl-l-arginine) indicated that .NO influenced the kinetics of cell death and resistance to both avirulent and virulent bacteria in tobacco. These observations suggest that .NO is integral to the elicitation of cell death associated with these two bacterial pathogens in tobacco. PMID:16009999

Mur, Luis A.J.; Santosa, I. Edi; Laarhoven, Lucas J.J.; Holton, Nicholas J.; Harren, Frans J.M.; Smith, Aileen R.

2005-01-01

77

Arabidopsis DAYU/ABERRANT PEROXISOME MORPHOLOGY9 is a key regulator of peroxisome biogenesis and plays critical roles during pollen maturation and germination in planta.  

PubMed

Pollen undergo a maturation process to sustain pollen viability and prepare them for germination. Molecular mechanisms controlling these processes remain largely unknown. Here, we report an Arabidopsis thaliana mutant, dayu (dau), which impairs pollen maturation and in vivo germination. Molecular analysis indicated that DAU encodes the peroxisomal membrane protein ABERRANT PEROXISOME MORPHOLOGY9 (APEM9). DAU is transiently expressed from bicellular pollen to mature pollen during male gametogenesis. DAU interacts with peroxisomal membrane proteins PEROXIN13 (PEX13) and PEX16 in planta. Consistently, both peroxisome biogenesis and peroxisome protein import are impaired in dau pollen. In addition, the jasmonic acid (JA) level is significantly decreased in dau pollen, and the dau mutant phenotype is partially rescued by exogenous application of JA, indicating that the male sterility is mainly due to JA deficiency. In addition, the phenotypic survey of peroxin mutants indicates that the PEXs most likely play different roles in pollen germination. Taken together, these data indicate that DAU/APEM9 plays critical roles in peroxisome biogenesis and function, which is essential for JA production and pollen maturation and germination. PMID:24510720

Li, Xin-Ran; Li, Hong-Ju; Yuan, Li; Liu, Man; Shi, Dong-Qiao; Liu, Jie; Yang, Wei-Cai

2014-02-01

78

In Planta Stage-Specific Fungal Gene Profiling Elucidates the Molecular Strategies of Fusarium graminearum Growing inside Wheat Coleoptiles[W][OA  

PubMed Central

The ascomycete Fusarium graminearum is a destructive fungal pathogen of wheat (Triticum aestivum). To better understand how this pathogen proliferates within the host plant, we tracked pathogen growth inside wheat coleoptiles and then examined pathogen gene expression inside wheat coleoptiles at 16, 40, and 64 h after inoculation (HAI) using laser capture microdissection and microarray analysis. We identified 344 genes that were preferentially expressed during invasive growth in planta. Gene expression profiles for 134 putative plant cell wall–degrading enzyme genes suggest that there was limited cell wall degradation at 16 HAI and extensive degradation at 64 HAI. Expression profiles for genes encoding reactive oxygen species (ROS)–related enzymes suggest that F. graminearum primarily scavenges extracellular ROS before a later burst of extracellular ROS is produced by F. graminearum enzymes. Expression patterns of genes involved in primary metabolic pathways suggest that F. graminearum relies on the glyoxylate cycle at an early stage of plant infection. A secondary metabolite biosynthesis gene cluster was specifically induced at 64 HAI and was required for virulence. Our results indicate that F. graminearum initiates infection of coleoptiles using covert penetration strategies and switches to overt cellular destruction of tissues at an advanced stage of infection. PMID:23266949

Zhang, Xiao-Wei; Jia, Lei-Jie; Zhang, Yan; Jiang, Gang; Li, Xuan; Zhang, Dong; Tang, Wei-Hua

2012-01-01

79

Regulation of Rhizobium meliloti exo genes in free-living cells and in planta examined by using TnphoA fusions.  

PubMed Central

The exo loci of Rhizobium meliloti are necessary for the production of an acidic exopolysaccharide, EPS I, that is needed for alfalfa nodule invasion by strain Rm1021. We have isolated and characterized alkaline phosphatase fusions made with TnphoA in several exo loci of R. meliloti and used these fusions to examine the subcellular localization of exo gene products and the regulation of exo genes in free-living cells and in planta. In the course of this work, we isolated a new exo locus, exoT. We have obtained evidence that several of the exo loci may encode membrane proteins. The activity of TnphoA fusions in several exo loci is increased two- to fivefold in the presence of the regulatory mutations exoR95 and exoS96. While examining the regulation of the exo gens by exoR95 and exoS96, we found that certain classes of exo mutations are lethal in an exoR95 or exoS96 background unless a plasmid complementing the exo mutation is present. This result has possible implications for the role of these exo loci in EPS I biosynthesis. We have developed a method for staining nodules specifically for the alkaline phosphatase activity present in the inducing bacteria and used this method to show that an exoF::TnphoA fusion is expressed mainly in the invasion zone of the nodule. Images PMID:1846141

Reuber, T L; Long, S; Walker, G C

1991-01-01

80

Regulation of Rhizobium meliloti exo genes in free-living cells and in planta examined by using TnphoA fusions.  

PubMed

The exo loci of Rhizobium meliloti are necessary for the production of an acidic exopolysaccharide, EPS I, that is needed for alfalfa nodule invasion by strain Rm1021. We have isolated and characterized alkaline phosphatase fusions made with TnphoA in several exo loci of R. meliloti and used these fusions to examine the subcellular localization of exo gene products and the regulation of exo genes in free-living cells and in planta. In the course of this work, we isolated a new exo locus, exoT. We have obtained evidence that several of the exo loci may encode membrane proteins. The activity of TnphoA fusions in several exo loci is increased two- to fivefold in the presence of the regulatory mutations exoR95 and exoS96. While examining the regulation of the exo gens by exoR95 and exoS96, we found that certain classes of exo mutations are lethal in an exoR95 or exoS96 background unless a plasmid complementing the exo mutation is present. This result has possible implications for the role of these exo loci in EPS I biosynthesis. We have developed a method for staining nodules specifically for the alkaline phosphatase activity present in the inducing bacteria and used this method to show that an exoF::TnphoA fusion is expressed mainly in the invasion zone of the nodule. PMID:1846141

Reuber, T L; Long, S; Walker, G C

1991-01-01

81

Colonization process of olive tissues by Verticillium dahliae and its in planta interaction with the biocontrol root endophyte Pseudomonas fluorescens PICF7  

PubMed Central

Summary The colonization process of Olea europaea by the defoliating pathotype of Verticillium dahliae, and the in planta interaction with the endophytic, biocontrol strain Pseudomonas fluorescens PICF7 were determined. Differential fluorescent protein tagging was used for the simultaneous visualization of P. fluorescens PICF7 and V. dahliae in olive tissues. Olive plants were bacterized with PICF7 and then transferred to V. dahliae?infested soil. Monitoring olive colonization events by V. dahliae and its interaction with PICF7 was conducted using a non?gnotobiotic system, confocal laser scanner microscopy and tissue vibratoming sections. A yellow fluorescently tagged V. dahliae derivative (VDAT?36I) was obtained by Agrobacterium tumefaciens?mediated transformation. Isolate VDAT?36I quickly colonized olive root surface, successfully invaded root cortex and vascular tissues via macro? and micro?breakages, and progressed to the aerial parts of the plant through xylem vessel cells. Strain PICF7 used root hairs as preferred penetration site, and once established on/in root tissues, hindered pathogen colonization. For the first time using this approach, the entire colonization process of a woody plant by V. dahliae is reported. Early and localized root surface and root endophytic colonization by P. fluorescens PICF7 is needed to impair full progress of verticillium wilt epidemics in olive. PMID:21255281

Prieto, Pilar; Navarro-Raya, Carmen; Valverde-Corredor, Antonio; Amyotte, Stefan G.; Dobinson, Katherine F.; Mercado-Blanco, Jesus

2009-01-01

82

L'art contemporain entre Le temps et L'histoire  

E-print Network

L'art contemporain entre Le temps et L'histoire Cycle de conférences et de conversations Musée d'art contemporain de Montréal 16 janvier ­ 23 mai 2013 entrée gratuite Musée d'art contemporain de Montréal 185, rue Sainte-Catherine Ouest Métro Place-des-Arts www.macm.org Depuis la fin des années 1980, l'art

Kambhampati, Patanjali

83

Relaciones entre lo sucedido en la década y las nuevas tendencias teatrales  

E-print Network

1983, el costo de vida aumentó en un 430%. La deuda externa pasó a 43,000 millones de dólares. Las Madres de Plaza de Mayo y otras entidades denunciaban 30,000 desaparecidos. Se estiman en 2,100,000 los argentinos que viven en el exterior. Asume...SPRING 1991 23 Relaciones entre lo sucedido en la década y las nuevas tendencias teatrales Eduardo Rovner Me propongo hurgar, más que en las relaciones entre lo sucedido en los '80 y los discursos de las obras estrenadas en la década, en lo...

Rovner, Eduardo

1991-04-01

84

La problematica de la demarcacion entre ciencia y pseudociencia y sus implicaciones en la educacion cientifica  

NASA Astrophysics Data System (ADS)

En la sociedad prevalece una tendencia generalizada hacia la inclusion de creencias y practicas pseudocientificas. Esta investigacion responde a la necesidad de analizar como la proliferacion de las pseudociencias afecta la vision que tienen los estudiantes universitarios sobre las ciencias naturales. A tales efectos, la investigadora describe las concepciones epistemologicas que tienen los estudiantes sobre las ciencias y las pseudociencias e identifica los criterios de demarcacion, entre un area y otra, que se derivan de estas concepciones. De igual modo, esta identifica las creencias y practicas pseudocientificas de mayor arraigo entre los estudiantes, destacando, a su vez, la razon de ser de las mismas. Por ultimo, la investigadora analiza las implicaciones educativas de la problematica de la demarcacion entre ciencia y pseudociencia. La investigacion es de naturaleza mixta, enmarcada en los paradigmas empirico- analitico y cualitativo. El proceso investigativo se llevo a cabo mediante la administracion del cuestionario Criterios para la demarcacion entre ciencia y pseudociencia. La parte cualitativa estuvo enmarcada en el diseno de estudio de caso, recopilando informacion mediante entrevistas semiestructuradas en dos grupos focales. La poblacion de estudio estuvo constituida por estudiantes universitarios del nivel subgraduado de la Universidad Central de Bayamon. Los resultados del estudio reflejaron las concepciones erroneas de los estudiantes sobre la naturaleza de las ciencias y las pseudociencias. Con respecto a la demarcacion entre ciencia y pseudociencia, el criterio imperante entre los universitarios es el de la verificabilidad, considerando la aplicacion del metodo cientifico como el metodo para demostrar la veracidad de las teorias cientificas. Las creencias y practicas pseudocientificas no son muy frecuentes entre los universitarios. Estos atribuyen las mismas a la prevalencia de elementos supersticiosos y al engano a que es sometida la poblacion por quienes promueven estas practicas. A partir de los resultados, la investigadora concluye que la problematica sobre la demarcacion entre ciencia y pseudociencia esta influenciada por unos procesos de ensenanza enfocados en una vision distorsionada de la ciencia, producto de la no integracion de los aspectos filosoficos, historicos y sociales de la misma.

Jimenez Tolentino, Dinorah

85

In vitro but not in planta encapsidation of Rice gall dwarf virus core particles by the outer capsid P8 protein of Rice dwarf virus expressed in transgenic rice plants  

Microsoft Academic Search

Transencapsidation of the Rice gall dwarf virus (RGDV) inner core by the Rice dwarf virus (RDV) outer capsid P8 protein was examined in vitro and in planta. When RGDV core particles were incubated with an extract\\u000a from RDV P8-transgenic rice leaf tissue, RDV P8 encapsidated the RGDV core particles to form double-shelled virus-like particles\\u000a in vitro. In contrast, when RDV

Kyoji Hagiwara; Takahiko Higashi; Kazunari Takahashi; Naho Hara; Hideyuki Aoki; Naoyuki Miyazaki; Qing-Yu Wang; Yafeng Zhu; Osamu Yatou; Hiroshi Tanaka; Toshihiro Omura

2006-01-01

86

Le Ymen : entre intgration politique et spirale de la (contre-)violence1  

E-print Network

Le Yémen : entre intégration politique et spirale de la (contre-)violence1 - François BURGAT (CNRS avant l'avènement de l'islam au 7ème siècle de notre ère. Le texte coranique et la Tradition prophétique

Boyer, Edmond

87

CORRELAÇÃO ENTRE A RECUPERAÇÃO DO CONTROLE REFLEXO CARDIOVASCULAR APÓS EXERCÍCIO MÁXIMO E CAPACIDADE FUNCIONAL  

Microsoft Academic Search

RESUMO As respost as fisiológicas durante e após o exercício revelam importantes mecanismos de controle cardiovascular. Investigamos a relação entre sensibilidade do barorreflexo (SBR) , variabilidade da freqüência cardíaca (VFC) e capacidade funcional (METs) em indivíduos sadios após um teste de esforço máximo. A VFC e a SBR foram obtidas por análise espectral antes e após o exercício. O componente

Pedro Paulo da Silva; Kelb Bousquet Santos; Leonardo Protásio; Jean M. Figueiredo; Edejar T. Silva Junior; Márcio N. Souza; Antonio C. L. Nóbrega

88

CRÍTICA LITERÁRIA FEMINIST A ENTRE ERÓTICA E ENGAJAMENTO POLÍTICO : UMA QUESTÃO POLÊMICA  

Microsoft Academic Search

Resumo:A partir de exame bibliográfico, perspectiva interdisciplinar e observação empírica, este estudo pretende, dentro do contexto latino-americano (Brasil e América Hispânica) das ditaduras militares, discutir algumas das possíveis relações entre temas polêmicos como o feminismo, crítica literária feminista e engajamento político, debatidos em certos setores da mídia e refletidos em obras literárias. Textos da ar gentina Marta Pynch, da costaricense

Vera Lúcia Dietzel

89

FAQ And Guide For uCLA entrepreneurs FAQfor UCLA EntrEprEnEUrs  

E-print Network

FAQ And Guide For uCLA entrepreneurs FAQfor UCLA EntrEprEnEUrs And Guide #12;uCLA oFFiCe oF inte follows is a list of frequently asked questions to help entrepreneurs in the UCLA community getCLA entrepreneurs What type of assistance can OIP provide in starting my company? Through our network, we can

Levine, Alex J.

90

Les conflits d'intérêt entre travailleurs qualifiés et travailleurs non qualifiés  

Microsoft Academic Search

[spa] Los conflictos de interés entre trabajdores cualificados y trabajadores no cualificados, . por Pierre Granier, Philippe Michel.. . Este artículo muestra, dentro del marco de un modelo muy simplificado, la existencia de un conflicto de interés que puede oponer a los trabajadores cualificados a aquellos que no tienen cualificación. Para ser más precisos, sugiere que al haber imperfecciones del

Philippe Michel; Pierre Granier

1994-01-01

91

CORRELACION ENTRE METODOS DE ANALISIS DE Zn DISPONIBLE EN CUATRO ORDENES DE SUELOS DE COSTA RICA  

Microsoft Academic Search

Se realizo una comparacion entre metodos Evaluation of methods for available de analisis del Zn disponible en 4 ordenes de sue- Zn in four soil orders in Costa Rica. Analyti- los de Costa Rica (Ultisoles, Vertisoles, Andisoles cal methods for available Zn determination we- e Inceptisoles, 25 de c\\/u), utilizando las siguientes re evaluated on four soil orders in Costa

Eloy Molina; Elemer Bomemisza

92

Analyse exprimentale de trois niveaux d'interactions entre Drosophila melanogaster  

E-print Network

Analyse expérimentale de trois niveaux d'interactions entre Drosophila melanogaster et le parasite Drosophila melanogaster a permis d'analyser plusieurs paliers évolutifs correspondant à des temps de contact. Summary Experimental analysis of interactions between Drosophila melanogaster and parasitic wasp

Paris-Sud XI, Université de

93

Musiques, prsentez-vous ! Une comparaison entre le rap et la techno Dr Antoine Hennion  

E-print Network

Musiques, présentez-vous ! Une comparaison entre le rap et la techno Dr Antoine Hennion Centre de has written extensively in the sociology of music, culture and innovation. He is now working sociologie de la médiation (1993), his recent publications include a collective book on music lovers (Figures

Boyer, Edmond

94

ENTR 451-1: Health Sciences Entrepreneurship, CRN 13299 CGS 729-01: Biomedical Commercialization  

E-print Network

ENTR 451-1: Health Sciences Entrepreneurship, CRN 13299 CGS 729-01: Biomedical Commercialization BIOE 850: Biomedical Technology Entrepreneurship Fall Semester 2013 Dr. Kelly Shaver, College for that subset of biotechnology dealing with health-related issues, biomedical processes, new drug development

Young, Paul Thomas

95

L'assainissement budgétaire au Danemark entre 1983 et 1986: l'anti-mythe  

Microsoft Academic Search

[fre] Des économistes ont cru déceler dans l'économie danoise le paradigme des « contractions budgétaires expansionnistes ». L'intérêt pour le Danemark était alors dû à la simultanéité de trois phénomènes entre les années 1982 et 1986 : une reprise économique forte, une rigueur budgétaire brutale et la chute vertigineuse du taux d'épargne des ménages. Une telle situation était considérée comme

Jérôme Creel

1998-01-01

96

Resup Nicole Escourrou -1 -Juin 2008 Le stage : lien privilgi entre formation et emploi  

E-print Network

plays a role in the experience gained in workplace. Internship is also playing a direct role even before his first professional integration. It makes its action more effective and more mature travail ? Cette communication vise à démontrer l'importance du stage comme lien privilégié entre la

Paris-Sud XI, Université de

97

Adoption of Transgenic Crops by Smallholder Farmers in Entre Rios, Argentina  

Microsoft Academic Search

This is a study of the adoption of transgenic crops by 120 smallholder farmers interviewed in July 2005 in the communities of San Jose de Feliciano and La Paz in the Entre Rios Province of Argentina. Logistic regression results indicate that access to a planter is essential for smallholders to adopt Bt corn, while adopters of Roundup Ready soybeans have

Cecilia Paredes; Marshall A. Martin

2007-01-01

98

Confrontation entre rsultats exprimentaux et numriques pour la simulation de l'interaction outil/abradable  

E-print Network

Confrontation entre résultats expérimentaux et numériques pour la simulation de l'interaction outil/abradable abradable sur le carter est reconnu depuis plusieurs années comme une solution robuste permettant à la fois of tool/abradable material interaction Abstract In turbomachinery, depositing abradable coatings along

Paris-Sud XI, Université de

99

Variabilit des phnomnes d'interfrence entre Vicia sativa L. et Avena sativa L.. I. Dynamique  

E-print Network

Agronomie Variabilité des phénomènes d'interférence entre Vicia sativa L. et Avena sativa L.. I; Variability of the phenomena of interferences between Vicia sativa L. and Avena sativa L. I. Growth dynamics

Boyer, Edmond

100

Ecole Doctorale : Sciences et Vie, Sant, Agronomie, Environnement un simulateur pour tudier les compromis entre perf  

E-print Network

Ecole Doctorale : Sciences et Vie, Santé, Agronomie, Environnement un simulateur pour étudier les, Agronomie, Environnement N° d'ordre 586 THESE Pour l'obtention du grade de Docteur d'université Spécialité : Agronomie Dynamilk : un simulateur pour étudier les compromis entre performances animales, utilisation des

Paris-Sud XI, Université de

101

Medication Adherence in Type 2 Diabetes: The ENTRED Study 2007, a French Population-Based Study  

E-print Network

Medication Adherence in Type 2 Diabetes: The ENTRED Study 2007, a French Population-Based Study´cile Fournier4 , Anne Fagot-Campagna5 , Alfred Penfornis6 * 1 Medical Information Department, University of Public Health Surveillance (InVS), Saint-Maurice, France, 6 Department of Endocrinology

Boyer, Edmond

102

Le rééquilibrage entre le secteur public et le secteur privé : Le cas du Mexique  

Microsoft Academic Search

La politique de rééquilibrage entre le secteur public et le secteur privé au Mexique s'inscrit dans une redéfinition du modèle de développement qui le ferait passer de la priorité traditionnellement donnée à la substitution aux importations à la priorité de la compétitivité internationale. Les changements structurels qui en découlent comportent deux volets. D'une part, ils visent à redimensionner le secteur

Charles-Albert Michalet

1989-01-01

103

Transferencias entre gobiernos y representación política: elementos empíricos de juicio de Argentina, Brasil y México  

Microsoft Academic Search

(Disponible en idioma inglés únicamente) En los países en desarrollo, las transferencias entre gobiernos desde el nivel central son una fuente importante de ingresos para la mayoría de los gobiernos subnacionales. Y es probable que su importancia aumente aún más, si se toman en cuenta las iniciativas de descentralización en América Latina y otras regiones. En este trabajo se investiga

Moritz Kraemer

1997-01-01

104

Comunicación entre gobierno y transnacionales una comparación de México y Corea  

Microsoft Academic Search

Introducción. La interacción entre las corporaciones transnacionales(CT) y un gobierno anfitrión tiende a entrar en conflicto a causa de las diferencias en las motivaciones y los intereses de los participantes, y el poder relativo de las dos partes. A lo largo del tiempo los intereses nacionales y los corporativos percividos evolucionan y cambian, como ocurre también con la balanza del

Juan M. Rivera; Kenneth P. Jameson; Lee A. Tavis

1991-01-01

105

La relación entre corrupción y narcotráfico: un análisis general y algunas referencias a Colombia  

Microsoft Academic Search

La relación entre corrupción y el desarrollo de la industria de drogas ilegales y del narcotráfico en un país es circular. La corrupción es simultáneamente causa y efecto de dichos desarrollos. tanto la corrupción como el narcotráfico muchas veces son resultado de porcesos de deslegitimación del régimen político y de deterioro de las instituciones sociales tanto civiles como oficiales y

Francisco Thoumi

1999-01-01

106

Durango (México) y Costa Rica: dos maneras contrastantes de ver la educación a distancia  

Microsoft Academic Search

Distance education has reached a large and increasing importance in the 21st century. In spite of their historical, cultural and economic resemblances, Mexico and Costa Rica have very different characteristics in distance education. In contrast with Mexico, in Costa Rica the body of research on distance education is voluminous. This study identifies the similarities and general differences between distance education

Monge Nájera

107

Boosting In Planta Production of Antigens Derived from the Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) and Subsequent Evaluation of Their Immunogenicity  

PubMed Central

Porcine reproductive and respiratory syndrome (PRRS) is a disease of swine, caused by an arterivirus, the PRRS virus (PRRSV). This virus infects pigs worldwide and causes huge economic losses. Due to genetic drift, current vaccines are losing their power. Adaptable vaccines could provide a solution to this problem. This study aims at producing in planta a set of antigens derived from the PRRSV glycoproteins (GPs) to be included in a subunit vaccine. We selected the GP3, GP4 and GP5 and optimized these for production in an Arabidopsis seed platform by removing transmembrane domains (Tm) and/or adding stabilizing protein domains, such as the green fluorescent protein (GFP) and immunoglobulin (IgG) ‘Fragment crystallizable’ (Fc) chains. Accumulation of the GPs with and without Tm was low, reaching no more than 0.10% of total soluble protein (TSP) in homozygous seed. However, addition of stabilizing domains boosted accumulation up to a maximum of 2.74% of TSP when GFP was used, and albeit less effectively, also the Fc chains of the porcine IgG3 and murine IgG2a increased antigen accumulation, to 0.96% and 1.81% of TSP respectively, while the murine IgG3 Fc chain did not. Antigens with Tm were less susceptible to these manipulations to increase yield. All antigens were produced in the endoplasmic reticulum and accordingly, they carried high-mannose N-glycans. The immunogenicity of several of those antigens was assessed and we show that vaccination with purified antigens did elicit the production of antibodies with virus neutralizing activity in mice but not in pigs. PMID:24614617

Piron, Robin; De Koker, Stefaan; De Paepe, Annelies; Goossens, Julie; Grooten, Johan; Nauwynck, Hans; Depicker, Ann

2014-01-01

108

Salinity-induced accumulation of organic osmolytes in barley and wheat leaves correlates with increased oxidative stress tolerance: In planta evidence for cross-tolerance.  

PubMed

Salinity tolerance in plants is dependent on their abilities to adjust osmotically to reduced soil water potential and to keep intracellular ROS levels under control. Both these processes are believed to rely on de novo synthesis of organic osmolytes (traditionally defined as compatible solutes). However direct in planta evidence for anti-oxidant roles of compatible solutes are scarce. In this work, we induced changes in the level of endogenous organic osmolytes by exposing plants to various levels of NaCl (salinity stress; 50-300 mM range) and then studying sensitivity of leaves to oxidative (UV-B) stress. Increase in the external NaCl concentrations was accompanied by the progressive accumulation in leaf Na(+). This accumulation was much higher in old leaves compared with young ones. In old leaves, three major inorganic ions (Na(+), Cl(-) and K(+)) have made 67.7% and 70.4% of leaf osmotic potential (in wheat and barley, respectively) when exposed to 200 mM NaCl treatment, while in young leaves their contribution was only 43.9% and 46.8%, respectively. Here, organic osmolytes played a substantial role in leaf osmotic adjustment. Increased accumulation of organic osmolytes correlated strongly with activity of PSII in leaves exposed to oxidation inducing UV-B treatment in both species (R(2) = 0.50 for wheat and 0.71 for barley). We conclude that salinity-induced accumulation of organic osmolytes in barley and wheat leaves correlates with increased oxidative stress tolerance and provides the evidence for a mechanism of cross-tolerance between these two stresses. PMID:25068241

Puniran-Hartley, Norhawa; Hartley, Joseph; Shabala, Lana; Shabala, Sergey

2014-10-01

109

A ubiquitin carboxyl extension protein secreted from a plant-parasitic nematode Globodera rostochiensis is cleaved in planta to promote plant parasitism.  

PubMed

Nematode effector proteins originating from esophageal gland cells play central roles in suppressing plant defenses and in formation of the plant feeding cells that are required for growth and development of cyst nematodes. A gene (GrUBCEP12) encoding a unique ubiquitin carboxyl extension protein (UBCEP) that consists of a signal peptide for secretion, a mono-ubiquitin domain, and a 12 amino acid carboxyl extension protein (CEP12) domain was cloned from the potato cyst nematode Globodera rostochiensis. This GrUBCEP12 gene was expressed exclusively within the nematode's dorsal esophageal gland cell, and was up-regulated in the parasitic second-stage juvenile, correlating with the time when feeding cell formation is initiated. We showed that specific GrUBCEP12 knockdown via RNA interference reduced nematode parasitic success, and that over-expression of the secreted Gr(?) (SP) UBCEP12 protein in potato resulted in increased nematode susceptibility, providing direct evidence that this secreted effector is involved in plant parasitism. Using transient expression assays in Nicotiana benthamiana, we found that Gr(?) (SP) UBCEP12 is processed into free ubiquitin and a CEP12 peptide (GrCEP12) in planta, and that GrCEP12 suppresses resistance gene-mediated cell death. A target search showed that expression of RPN2a, a gene encoding a subunit of the 26S proteasome, was dramatically suppressed in Gr(?) (SP) UBCEP12 but not GrCEP12 over-expression plants when compared with control plants. Together, these results suggest that, when delivered into host plant cells, Gr(?) (SP) UBCEP12 becomes two functional units, one acting to suppress plant immunity and the other potentially affecting the host 26S proteasome, to promote feeding cell formation. PMID:23346875

Chronis, Demosthenis; Chen, Shiyan; Lu, Shunwen; Hewezi, Tarek; Carpenter, Sara C D; Loria, Rosemary; Baum, Thomas J; Wang, Xiaohong

2013-04-01

110

Differential subcellular targeting of recombinant human ??-proteinase inhibitor influences yield, biological activity and in planta stability of the protein in transgenic tomato plants.  

PubMed

The response of protein accumulation site on yield, biological activity and in planta stability of therapeutic recombinant human proteinase inhibitor (??-PI) was analyzed via targeting to different subcellular locations, like endoplasmic reticulum (ER), apoplast, vacuole and cytosol in leaves of transgenic tomato plants. In situ localization of the recombinant ??-PI protein in transgenic plant cells was monitored by immunohistochemical staining. Maximum accumulation of recombinant ??-PI in T? and T? transgenic tomato plants was achieved from 1.5 to 3.2% of total soluble protein (TSP) by retention in ER lumen, followed by vacuole and apoplast, whereas cytosolic targeting resulted into degradation of the protein. The plant-derived recombinant ??-PI showed biological activity for elastase inhibition, as monitored by residual porcine pancreatic elastase (PPE) activity assay and band-shift assay. Recombinant ??-PI was purified from transgenic tomato plants with high yield, homogeneity and biological activity. Purified protein appeared as a single band of ?48-50 kDa on SDS-PAGE with pI value ranging between 5.1 and 5.3. Results of mass spectrometry and optical spectroscopy of purified recombinant ??-PI revealed the structural integrity of the recombinant protein comparable to native serum ??-PI. Enzymatic deglycosylation and lectin-binding assays with the purified recombinant ??-PI showed compartment-specific N-glycosylation of the protein targeted to ER, apoplast and vacuole. Conformational studies based on urea-induced denaturation and circular dichroism (CD) spectroscopy revealed relatively lower stability of the recombinant ??-PI protein, compared to its serum counterpart. Pharmacokinetic evaluation of plant derived recombinant and human plasma-purified ??-PI in rat, by intravenous route, revealed significantly faster plasma clearance and lower area under curve (AUC) of recombinant protein. Our data suggested significance of protein sorting sequences and feasibility to use transgenic plants for the production of stable, glycosylated and biologically active recombinant ??-PI for further therapeutic applications. PMID:23017899

Jha, Shweta; Agarwal, Saurabh; Sanyal, Indraneel; Jain, G K; Amla, D V

2012-11-01

111

La Universidad de Alicante favorece el encuentro entre ingenieria y medicina para una sanidad ms exigente  

E-print Network

La Universidad de Alicante favorece el encuentro entre ingenieria y medicina para una sanidad más exigente Alicante, 13 de marzo de 2012 Favorecer el desarrollo mutuo de la ingeniería y la medicina en una la Salud, se celebrará a partir de mañana miércoles en la Universidad de Alicante. Organizado por su

Escolano, Francisco

112

La thorie du millefeuille. De la non-substitution entre communications lectroniques et face face1  

E-print Network

importante de leur temps en réunions. L'usage des moyens de communication électronique (courrier électronique, télécopies, face à face, courrier électronique, S.M.S, messagerie instantanée, etc...). Il est donc légitime substitu- tion entre communication électronique, limitée ici au courrier électronique, et réunions

Boyer, Edmond

113

Du bois mort pour la biodiversit. Des forestiers entre doute et engagement Philippe Deuffic  

E-print Network

1 Du bois mort pour la biodiversité. Des forestiers entre doute et engagement Philippe Deuffic UR mort est un facteur clé pour la biodiversité forestière, retenu au titre des indicateurs de gestion'�le-de-France afin de cerner les pratiques et les représentations sociales associées au bois mort Les résultats de l

Paris-Sud XI, Université de

114

RELATIONS ENTRE LES PROPRITS OPTIQUES ET DILECTRIQUES POLARISATION IONIQUE DANS LES SOLIDES (1)  

E-print Network

RELATIONS ENTRE LES PROPRI�T�S OPTIQUES ET DI�LECTRIQUES POLARISATION IONIQUE DANS LES SOLIDES (1 électromagnétique, elle varie avec la fréquence de celle-ci; c'est ce qui caractérise la dispersion. En effet disparaissent à leur tour, et seuls les effets des électrons extérieurs se font sentir=(3). Dans un solide loin

Boyer, Edmond

115

Nature cristallo-physico-chimique de l'interface entre un semiconducteur et son oxyde propre.  

E-print Network

379 Nature cristallo-physico-chimique de l'interface entre un semiconducteur et son oxyde propre. I résultats d'études systématiques des propriétés électrophysiques et physicochimiques de l'interface oxyde, sur le système électrolyte-oxyde propre-semiconducteur, on a réussi à mettre en évidence les règles de

Boyer, Edmond

116

agronomie: agriculture and environment Relation entre la vitesse relative de croissance  

E-print Network

teneur en azote chez la laitue (Lactuca sativa L) Effets du rayonnement et de la température L Dapoigny to plants fed with nutrient solution and grown in sand in a plastic greenhouse. The level of radiation has montre pas d'effet sur la relation entre la VRC et la teneur en azote réduit. � même teneur en azote, les

Paris-Sud XI, Université de

117

ANALISE COMPARATIVA ENTRE MICROSOFT FLIGHT SIMULATOR E FLIGHTGEAR FLIGHT SIMULATOR EM TESTES HARDWARE-IN-THE-LOOP  

E-print Network

testes HWIL estende-se `as diversas ´areas de pesquisa, auxiliando a minimi- zar o tempo e os custosAN´ALISE COMPARATIVA ENTRE MICROSOFT FLIGHT SIMULATOR E FLIGHTGEAR FLIGHT SIMULATOR EM TESTES, HWIL systems, UAVs, simulation. Resumo-- Neste artigo ´e estabelecida uma rela¸c~ao comparativa entre

Chaimowicz, Luiz

118

Kingdom Plantae Douglas firs (left);  

E-print Network

green algae Both have chlorophyll a 4 major innovations Multicellularity Vascular tissue Seeds Flowers greatly increased fertilization success Possess lignin and vascular tissue Possess seeds Sporophyte

Brown, Christopher A.

119

Etude des relations entre photosynthese respiration, transpiration et nutrition minerale chez le ble  

NASA Astrophysics Data System (ADS)

La croissance du Blé Triticum aestivum a été étudiée en environnement contrôlé et fermé pendant une période de 70 jours. Les échanges gazeux (Photosynthèse, Respiration) hydriques (Transpiration) et la consommation en éléments minéraux (Azote, Phosphore, Potassium) ont été mesurés en continu. On présentera les relations dynamiques observées entre les différentes fonctions physiologiques, d'une part sous l'influence de la croissance et d'autre part en réponse à des modifications de l'environnement. L'influence de la teneur en CO2 pendant la croissance (teneur normale ou doublée) sera mise en évidence.

André, M.; Ducloux, H.; Richaud, C.; Massimino, D.; Daguenet, A.; Massimino, J.; Gerbaud, A.

120

PROPRITS DILECTRIQUES DE L'OXYDE CUIVREUX AUX AUDIOFRQUENCES ENTRE 150 K ET 320 K  

E-print Network

393 PROPRI�T�S DI�LECTRIQUES DE L'OXYDE CUIVREUX AUX AUDIOFR�QUENCES ENTRE 150 °K ET 320 °K par C échantillons ont été obtenus par oxydation du cuivre à 1 O50 °C et recuit à 1 100 °C en présence d'air sous pression atmosphérique. Le montage utilisé est semblable à celui décrit par Grun [5]. Les durées d'oxydation

Boyer, Edmond

121

BEMS-Assisted Seasonal Functional Performance Testing in the Initial Commissioning of Kista Entre and Katsan  

E-print Network

BEMS-ASSISTED SEASONAL FUNCTIONAL PERFORMANCE TESTING IN THE INITIAL COMMISSIONING OF KISTA ENTR? AND KATSAN Per Isakson*, Per Wetterstr?m** and P?r Carling*** * Building Sciences KTH, Stockholm SWEDEN. per.isakson@byv.kth.se ** Vasakronan... and functional analysis of HVAC-systems can be done cost-effectively with a procedure based on: #0;9#0;9 intensive BEMS-supported data acquisition (i.e. historical data logging) #0;9#0;9 a powerful visualization tool focused on data analysis together...

Isakson, P.; Wetterstrom, P.; Carling, P.

2004-01-01

122

Model-Based Functional Performance Testing of AHU in Kista Entre  

E-print Network

MFRA MFSA Figure 1. The main AHU LB11 in Kista Entr?. SIMULATION MODEL We use the IDA simulation environment (Sahlin 1996, www.equa.se). IDA is a component-oriented detailed simulation programme that comprises three modules: #0;9#0;9 A...;9#0;9 Turbulent flow on both air and liquid sides of heat transfer devices. We use the standard component library in the IDA-application Indoor climate and energy (ICE), together with two models made for this study; a heat transfer flow dependent heat exchanger...

Carling, P.; Isakson, P.

2004-01-01

123

Astrofsica Extragalctica y Cosmologa. Problemas y preguntas clave I.  

E-print Network

relación liga al corrimiento al rojo con el factor de escala del universo. 7. Dadas 3 galaxias A factor 2 d. La galaxia Andrómeda está un factor 2 más alejada e. La galaxia Andrómeda está un factor distancia Vía Láctea ­ Andrómeda es constante a lo largo del tiempo h. Las distancias entre las galaxias en

Aretxaga, Itziar

124

Religiosidade, juventude e sexualidade: entre a autonomia e a rigidez1  

PubMed Central

Esse artigo descreve como jovens religiosos e autoridades religiosas de sua comunidade compreendem a sexualidade, considerando suas experiências pessoais e como membros de comunidades religiosas. A análise pretende contribuir para que políticas públicas dedicadas à promoção da saúde sexual da juventude considerem a religiosidade, no contexto de um estado laico e da promoção do direito à prevenção. Foram realizadas 26 entrevistas abertas e semidirigidas em diferentes comunidades da região metropolitana da cidade de São Paulo (comunidades católicas, da umbanda, do candomblé e de diferentes denominações evangélicas) sobre iniciação sexual, casamento, gravidez, contracepção e prevenção das DST/Aids, homossexualidade, aborto e direitos humanos. Observou-se como jovens e autoridades religiosas convivem com a tensão entre tradição e modernidade e os distintos discursos sobre a sexualidade. Como sujeitos religiosos (do discurso religioso) e sujeitos sexuais (de discursos sobre sexualidade), devem ser incorporados pelos programas como sujeitos de direito nos termos de sua religiosidade. PMID:21886456

Silva, Cristiane Goncalves da; Santos, Alessandro Oliveira; Licciardi, Daniele Carli; Paiva, Vera; Parker, Richard

2009-01-01

125

State of Conservation of the Native Forests in Entre Ríos (Argentina) and Changes in Land Use  

NASA Astrophysics Data System (ADS)

The native forest area of Entre Ríos province (Argentina) is associated with a constant change in land use, with an increase in recent years in agricultural use, especially for soybean crop. In addition, since its inadequate management has triggered degradation processes of the natural forest structure, the implementation of strategies for the restoration and conservation of native forests has become a priority. The aim of this study was to diagnose the conservation state of the native forest in the basin of the Estacas Stream (Entre Ríos, Argentina) after the change in land use, to help design guidelines for the restoration and sustainable management of these ecosystems. The field study was conducted in October 2010, in a representative area of the native forest of 73,000 ha. Using Landsat 5-TM images (INPE), environments were separated by manual vectorization, identifying and classifying native forests and other lands (agricultural, urban). Using a field exploratory survey (58 geo-referenced sampling points), we developed patterns corresponding to the different types of forests, contrasting this information with the digital data of the images. The native forests were classified according to type (high/low forest, open/closed forest, savanna), successional stage (climax, successional or regeneration forest) and degree of disturbance (weed growth, erosion, fire), and their frequency determined. Each classification was assessed by a contingency matrix, and global reliability index and the Kappa index. The information obtained generated a classification map of native forests in the basin scale. We found that the native forest covered an area of 42,726.91 ha, accounting for 58.52% of the total basin area, and that the rest corresponded to other land uses. The most frequent native forests (59.09%) were climax forest, but accounted for only 8.2% of the basin area. Within this group, the most important were the low and open forest, with Prosopis affinis and Prosopis nigra as the dominant tree species. Although the successional forests were not the most frequent, they occupied the greater area of the basin (30.8%), being low and open forest the dominant type. The regeneration forest dominated by Acacia caven, represents 18.71% of the basin area. Weed shrub species growth was the most frequent disturbance. We determined a severe weed shrub growth in 41% of the sampling points, with Baccharis punctulata and Eupatorium buniifolium as the dominant species. According to state of conservation of native forest, 7,797.03 ha have a high conservation value, while 21,272.17 ha and 13,657.71 ha have a medium and low conservation value, respectively.

Sabattini, R. A.; Sione, S. M.; Ledesma, S. G.; Sabattini, J. A.; Wilson, M. G.

2012-04-01

126

La continuidad y el cambio de las migraciones entre México y Estados Unidos: una interpretación desde México  

Microsoft Academic Search

El tema de los movimientos de población entre países ha cobrado una importancia mayor tanto por el crecimiento numérico de los migrantes, como por las diversas implicaciones que ese fenómeno tiene desde varias perspectivas. A diferencia del pasado, al tema migratorio se le han añadido ahora otros que tienen que ver con los derechos humanos, laborales y civiles, además de

Gustavo Verduzco Igartúa

2005-01-01

127

Relação entre índice de massa corporal e habilidade motora grossa em crianças de quatro a seis anos  

Microsoft Academic Search

RESUMO Este estudo teve por objetivo verificar a relação entre o desem- penho em tarefas de habilidade motora grossa com o índice de massa corporal (IMC) em meninos e meninas de quatro a seis anos de idade. Para tanto, foram analisadas 27 crianças, sendo 16 meninos e 11 meninas, com idade média de 5,64 ± 0,67 anos. As crianças foram

Fabrizio Zandonadi Catenassi; Inara Marques; Carina Barbiero Bastos; Luciano Basso; Enio Ricardo Vaz Ronque; Aline Mendes Gerage

2007-01-01

128

Occurrence of alternariol and alternariol monomethyl ether in beverages from the Entre Rios Province market, Argentina.  

PubMed

One hundred and eighty five samples of red, white and rosé wines and different juices purchased in Entre Rios, Argentina, were analyzed for the Alternaria mycotoxins alternariol (AOH) and alternariol methyl ether (AME). White wines were analyzed after removal of alcohol by a nitrogen stream and concentrated. AOH in red wines was cleaned up by solid-phase extraction columns in series (octadecyl and amino propyl modified silica) and AME quantified directly on the sample. The juices were filtered and concentrated, and then all sample extracts were quantified by high performance liquid chromatography with photodiode array detector that allows confirmation through UV spectra. Method validation revealed a good sensitivity with adequate LOD and LOQ for AME and less sensitivity for AOH (i.e. white wine: AME 0.8 and 1.4 ng/mL, AOH 2 and 3.3 ng/mL; red wine: AME 0.1 and 0.2 ng/mL, AOH 4.5 and 7.5 ng/mL; apple juice: AME 1.7 and 2.8 ng/mL, AOH 5 and 9 ng/mL; other juices: AME 2.0 and 3.1 ng/mL, AOH 6 and 10 ng/mL). Recoveries in all cases were greater than 80 %. Four of 53 white wine samples were contaminated with AOH with a maximum level of 18 ng/mL, 6 of 56 samples of red wine had a maximum of 13 ng/mL, and 3 of 68 samples of juices had traces of AOH. AME was less frequently detected than AOH, and the LOD and LOQ for AME are smaller than for AOH. Only three samples of white wine and one of red wine were contaminated, but in only one white wine sample (AME 225 ng/mL) did the toxin level exceed the LOQ. PMID:23334721

Broggi, Leticia; Reynoso, Cora; Resnik, Silvia; Martinez, Fernanda; Drunday, Vanesa; Bernal, Angela Romero

2013-02-01

129

Analyse des interactions energetiques entre un arena et son systeme de refrigeration  

NASA Astrophysics Data System (ADS)

La presente these s'inscrit dans le cadre d'un projet strategique sur les arenas finance par le CRSNG (Conseil de Recherche en Sciences Naturelles et en Genie du Canada) qui a pour but principal le developpement d'un outil numerique capable d'estimer et d'optimiser la consommation d'energie dans les arenas et curlings. Notre travail s'inscrit comme une suite a un travail deja realise par DAOUD et coll. (2006, 2007) qui a developpe un modele 3D (AIM) en regime transitoire de l'arena Camilien Houde a Montreal et qui calcule les flux de chaleur a travers l'enveloppe du batiment ainsi que les distributions de temperatures et d'humidite durant une annee meteorologique typique. En particulier, il calcule les flux de chaleur a travers la couche de glace dus a la convection, la radiation et la condensation. Dans un premier temps nous avons developpe un modele de la structure sous la glace (BIM) qui tient compte de sa geometrie 3D, des differentes couches, de l'effet transitoire, des gains de chaleur du sol en dessous et autour de l'arena etudie ainsi que de la temperature d'entree de la saumure dans la dalle de beton. Par la suite le BIM a ete couple le AIM. Dans la deuxieme etape, nous avons developpe un modele du systeme de refrigeration (REFSYS) en regime quasi-permanent pour l'arena etudie sur la base d'une combinaison de relations thermodynamiques, de correlations de transfert de chaleur et de relations elaborees a partir de donnees disponibles dans le catalogue du manufacturier. Enfin le couplage final entre l'AIM +BIM et le REFSYS a ete effectue sous l'interface du logiciel TRNSYS. Plusieurs etudes parametriques on ete entreprises pour evaluer les effets du climat, de la temperature de la saumure, de l'epaisseur de la glace, etc. sur la consommation energetique de l'arena. Aussi, quelques strategies pour diminuer cette consommation ont ete etudiees. Le considerable potentiel de recuperation de chaleur au niveau des condenseurs qui peut reduire l'energie requise par le systeme de ventilation de l'arena a ete mis en evidence. Mots cles. Arena, Systeme de refrigeration, Consommation d'energie, Efficacite energetique, Conduction au sol, Performance annuelle.

Seghouani, Lotfi

130

Presencia de Walt Whitman en la poesia de Pablo Neruda: la relacion entre Hojas de Hierba y Canto General  

E-print Network

psicoanalisis, la teoria semiotica, y la psicologia cognitiva contemporanea, se desarrolla un nuevo modelo literario, basado en el concepto de los esquemas cognitivos, para analizar el dialogo texto-lector y el dialogo entre ambos textos (intercomunicabilidad... de textos). Se definen los distintos papeles que desempenan el autor, el lector y el "yo", o poets textual. Se delinean diversas tacticas de negociacion que el poeta textual utiliza para lograr que el lector le atribuya la misma significacion al...

Rios, David Joel

2012-06-07

131

Amlioration de la qualit pastire du bl dur (Triticum durum Desf.) : tude des relations entre les diagrammes  

E-print Network

viscoélasticité du gluten des 2 types sont significativement différentes ; - il existe une corrélation hautement significative (rz=0,76) entre les notes de viscoélasticité du gluten et les résultats du test de sédimentation milieu sodium dodécylsulfate, viscoélasticité du gluten, viscoélasticité de la pâte. SUMMARY Improvement

Boyer, Edmond

132

Les bourses de thse Certains d'entre vous se souviennent des galres rencontres, lorsqu'en DEA, on recherche  

E-print Network

Les bourses de thèse Certains d'entre vous se souviennent des galères rencontrées, lorsqu'en DEA, on recherche une bourse de thèse. Alors, nous avons décidé de vous faire un petit récapitulatif des bourses, ce. Avant toute chose, il faut savoir que le choix d'une bourse de thèse est plus important que certains

Gesbert, David

133

Instabilités à "l'interface" entre deux fluides miscibles. Émergence d'une tension de surface effective  

NASA Astrophysics Data System (ADS)

Instabilities can develop at the "interface" between two miscibles fluids which exihibit patterns very similar to those observed between immiscible fluids. For example, a layer of colored glycerine hanged-up below a glass plate and placed into a water tank, gives rise to organized patterns. Also, a thin layer of glycerine falling into water is unstable and gives falling columns with a regular distance between each other. These similarities between miscible and immiscible fluids lead to the existance of an "effective surface tension" between miscible fluids. This effective tension has a meaning for short times only, and should tend to zero with time. It can be explained by the strong concentration gradient at the "interface". Les instabilités qui peuvent se développer à "l'interface" entre deux fluides miscibles présentent des structures qui sont très proches morpholiquement de celles que l'on observe habituellement à l'interface entre deux fluides non-miscibles. C'est ainsi qu'une couche de glycérine colorée suspendue sous une plaque de verre et placée dans un réservoir d'eau montre le développement de structures organisées. De même, une fine nappe de glycérine s'écoulant dans l'eau se déstabilise sous forme de colonnes tombantes régulièrement espacées. Ces analogies tendent à aller dans le sens de l'existence d'une "tension de surface équivalente" entre fluides miscibles. Cette tension effective, qui n'a de sens qu'aux temps courts, et qui doit irrémédiablement tendre vers zéro avec le temps, peut s'expliquer par l'existence de forts gradients de concentration à "l'interface" entre les deux fluides miscibles.

Petitjeans, P.; Kurowski, P.; Fernandez, J.; Hoyos, M.

1999-06-01

134

Relation entre les caract?ristiques des table-bancs et les mesures anthropom?triques des ?coliers au Benin  

PubMed Central

Introduction Le mobilier scolaire et la posture assise en classe sont souvent impliqués dans l'apparition des douleurs rachidiennes, influant de fait sur la qualité des tâches réalisées par les apprenants. Aucune étude n'a encore vérifié le degré d'adéquation entre les caractéristiques du mobilier et celles des écoliers au Bénin. L'objectif de cette étude transversale est donc de déterminer la relation entre les dimensions des table-bancs utilisées en classe et les mesures anthropométriques des écoliers au Bénin. Methods Elle a été réalisée avec un échantillon probabiliste de 678 écoliers, âgés de 4 à 17 ans. Les mesures anthropométriques des écoliers et les mensurations relatives aux longueurs, largeurs et hauteurs des table-bancs ont été mesurées, puis intégrées aux équations proposées dans la littérature. Les pourcentages des valeurs situées hors des limitesacceptables, dérivées de l'application des équations ont été calculés. Results La largeur et la hauteur des table-bancs utilisées par les écoliers étaient plus élevées (p < 0,05) que les valeurs de référence recommandées par les structures officielles de contrôle et de production des mobiliers scolaires au Bénin. Quel que soit le sexe, il y avait une inadéquation entre la largeur du banc et la longueur fesse-poplité, puis entre la hauteur de la table et la distance coude-bancdes écoliers. Conclusion Les résultats suggèrent de prendre en compte l’évolution des mesures anthropométriques des écoliers dans la confection des table-bancs, afin de promouvoir de bonnes postures assises en classe et de réduire le risque de troubles du rachis. PMID:25317232

Falola, Steve Marjelin; Gouthon, Polycarpe; Falola, Jean-Marie; Fiogbe, Michel Armand; Nigan, Issiako Bio

2014-01-01

135

Relação entre diferentes índices de atividade física e preditores de adiposidade em adolescentes de ambos os sexos  

Microsoft Academic Search

RESUMO Objetivo: Determinar a relação entre diferentes índices de ativi- dade física e preditores de adiposidade em adolescentes de am- bos os sexos. Métodos: Foram avaliadas 111 crianças (57 meni- nos e 54 meninas), com idade média de 11,62 ± 0,72. Como preditores de adiposidade foram determinados o IMC, percenta- gem de gordura corporal e a relação cintura\\/quadril (RCQ). Quanto

Luís Paulo Gomes Mascarenhas; Fabiano de Macedo Salgueirosa; Gabriel Ferreira Nunes; Paulo Ângelo Martins; Antonio Stabelini Neto; Wagner de Campos

2005-01-01

136

TRANSFERTS DE POPULATIONS ENTRE LES NIVEAUX DE LA CONFIGURATION (6s, 6d) DE L'ATOME DE MERCURE  

E-print Network

953 TRANSFERTS DE POPULATIONS ENTRE LES NIVEAUX DE LA CONFIGURATION (6s, 6d) DE L'ATOME DE MERCURE) Résumé. 2014 Des mesures de l'intensité des raies de fluorescence émises par des atomes de mercure collisions avec des molécules d'azote. Nous avons repris cette étude avec l'atome de mercure dans le cas de

Paris-Sud XI, Université de

137

Strotypes et motivation autodtermine 1 Relation entre les strotypes sexus associs aux pratiques sportives et la motivation  

E-print Network

Stéréotypes et motivation autodéterminée 1 Relation entre les stéréotypes sexués associés aux pratiques sportives et la motivation autodéterminée des élèves en éducation physique et sportive Aïna et Motricité 66 (2009) 61-70" #12;Stéréotypes et motivation autodéterminée 2 Résumé Cette étude

Paris-Sud XI, Université de

138

SPARTE ET LA CYROPDIE : DU BON USAGE DE Aborder les rapports entre " Xnophon et Sparte " par le biais de la Cyropdie tient du  

E-print Network

analogique entre les Assyriens et les Spartiates. Voir à ce propos C. J. TUPLIN, " Xenophon, Sparta, and the Cyropaedia ", dans A. POWELL et S. HODKINSON (éd.), The Shadow of Sparta, Londres, 1994, p. 127-181, ici p

Paris-Sud XI, Université de

139

Déclin de l'emploi industriel et tertiarisation accrue. L'emploi par secteur d'activité entre 1982 et 1990  

Microsoft Academic Search

[fre] Déclin de l'emploi industriel et tertiarisation accrue L'emploi par secteur d'activité entre 1982 et 1990 . Entre 1 982 et 1 990, l'économie française crée près de 800 000 emplois. Cette progression recouvre, en moyenne par an, des évolutions de sens opposés : créations d'emplois dans le tertiaire (+ 240 000), disparitions dans l'industrie (- 64 000), l'agriculture (-

Magda Tomasini; Sylvie Dumartin

1993-01-01

140

Simple quantification of in planta fungal biomass.  

PubMed

An accurate assessment of the disease resistance status of plants to fungal pathogens is an essential requirement for the development of resistant crop plants. Many disease resistance phenotypes are partial rather than obvious immunity and are frequently scored using subjective qualitative estimates of pathogen development or plant disease symptoms. Here we report a method for the accurate comparison of total fungal biomass in plant tissues. This method, called the WAC assay, is based upon the specific binding of the plant lectin wheat germ agglutinin to fungal chitin. The assay is simple, high-throughput, and sensitive enough to discriminate between single Puccinia graminis f.sp tritici infection sites on a wheat leaf segment. It greatly lends itself to replication as large volumes of tissue can be pooled from independent experiments and assayed to provide truly representative quantification, or, alternatively, fungal growth on a single, small leaf segment can be quantified. In addition, as the assay is based upon a microscopic technique, pathogen infection sites can also be examined at high magnification prior to quantification if desired and average infection site areas are determined. Previously, we have demonstrated the application of the WAC assay for quantifying the growth of several different pathogen species in both glasshouse grown material and large-scale field plots. Details of this method are provided within. PMID:24643560

Ayliffe, Michael; Periyannan, Sambasivam K; Feechan, Angela; Dry, Ian; Schumann, Ulrike; Lagudah, Evans; Pryor, Anthony

2014-01-01

141

Anatomia foliar de plantas micropropagadas de abacaxi  

Microsoft Academic Search

The objective of this work was to study leaf anatomy of pineapple plants in order to improve acclimatization protocols. In vitro plantlets weighting an average of 3.1 g and greenhouse plantlets derived from in vitro stock material, after six and ten months of culture, weighting an average of 50.2 and 65 g, respectively, were used. Stomatal density was determined on

Sarah Brandão Santa Cruz Barboza; Dalva Graciano-Ribeiro; João Batista Teixeira; Tomás Aquino Portes; Luiz Augusto Copati Souza

2006-01-01

142

Entre Ouest confrences 2  

E-print Network

�servation Abbott (ouverture en 2011) Galerie Marae Galerie Comer (ouverture en 2011) Tibet En savoir plus sur Sue�servations encourag�es. library@fieldmuseum.org Target Free Second Mondays est g�n�reusement sponsoris� par Le Field

Patterson, Bruce D.

143

Soil Quality Indicators to Define Land Use in the Area of Native Forest of Entre Ríos, Argentina  

NASA Astrophysics Data System (ADS)

The main economic activity in the area of native forest of the province of Entre Ríos (Argentina) has long been the agricultural and/or livestock production, especially cattle breeding. In recent years, the proportion of agricultural crops in the rotations, especially that of soybean, has increased, thus leading to an increase in the need for land clearing to incorporate new lands for agricultural use. Most of these lands are considered marginal for agricultural use. In addition rice farming with irrigation is a critical part of the Entre Ríos economy. Defining and assessing soil quality indicators (SQI) that show the evolution of the soil with different uses and management systems is a way to contribute to the knowledge of soil quality. The aims of this study were to characterize the current land use and land tenure in the area of native forest of Entre Ríos, as well as to identify and select variables sensitive to agricultural and/or livestock use of the most representative soils of this area (indicators of the dynamic quality of the soil) and define the most appropriate land use according to land suitability and behavior of these indicators. We identified the most representative soil subgroups (corresponding to the orders Vertisols, Mollisols and Alfisols) and defined the production systems livestock-agricultural, agricultural-livestock, agricultural without irrigation, and rice crop irrigated with water from groundwater and surface reservoirs. We also determined the physical, physico-chemical, chemical and microbiological variables of the soil, and characterized the quality of the water for irrigation. We selected the SQI using Principal Components Analysis, to form a minimum data set (MDS). The change in the use of the land responded to a favorable economic situation for agriculture that started in the 1990's. The leasing and sharecropping schemes and the incidental contracts have become increasingly important, predominating over the undivided property. We obtained the MDS for twelve combinations of soil subgroups and production systems. The MDS for each of them presented between six and nine SQI. The indicators showed greater variation in the MDS by production system than by unit of land. Total organic carbon content (TOC) and the structural stability index (Is) were included in all the MDS. The rice systems showed high dependence on the quality of the irrigation water. We also found high fragility of some soil subgroups. The results suggest that rotations including pastures in a high proportion should be considered, especially in Alfisols and Vertisols. The native forest is considered as the basis of sustainable production systems for the study area. Thus, the land that has already been cleared or is about to be cleared should consider an agricultural and/or livestock use according to its productive capacity and its limitations.

Wilson, M. G.; Tasi, H. A.; Paz González, A.; Díaz, E. L.; Sasal, M. C.

2012-04-01

144

Competition entre les phases ferromagnetique metallique et ordre de charges a l'interface de manganites a magnetoresistance colossale  

NASA Astrophysics Data System (ADS)

Dans la these qui suit, l'interaction entre deux manganites a magnetoresistance colossale domines par des phases antagonistes est etudiee a l'interface de bicouches. Un manganite isolant anti-ferromagnetique presentant une phase d'ordre de charges a basse temperature et un manganite metallique domine par les interactions ferromagnetiques. L'objectif est de verifier si l'interaction entre ces deux manganites est susceptible de soit 1) affaiblir la stabilite de l'ordre de charges ou soit 2) de rendre la phase metallique plus resistive afin d'ameliorer les proprietes de magnetoresistance colossale. Deux series de bicouches ont ete preparees par depot par ablation laser pulse et analysees avec une combinaison de plusieurs methodes experimentales telles que la mesure de resistance electrique, la spectroscopie Raman, la mesure d'aimantation et la diffraction des rayons X. Dans la premiere serie de bicouches, la configuration utilisee consiste en une couche tampon ferromagnetique sur laquelle une couche de manganite a ordre de charges est deposee. Il s'est avere que la phase d'ordre de charges n'est pas destabilisee par la phase ferromagnetique metallique dans une couche d'ordre de charges aussi mince que 10 nm. Les mesures de resistance montrent que la phase isolante demeure difficile a rendre metallique sous l'application d'un champ magnetique. La spectroscopie Raman montre egar lement une phase d'ordre de charges tres stable et suggere que les contraintes mecaniques appliquees par la couche tampon sont responsables de cette stabilite, malgre la presence de la phase ferromagnetique a proximite. Dans la deuxieme serie de bicouches, la configuration utilisee consiste en une couche tampon presentant de l'ordre de charges sur laquelle une couche ferromagnetique metallique est deposee. La diminution de l'epaisseur de la couche ferromagnetique metallique se repercute sur une diminution de la temperature de Curie et de la transition metal-isolant. Entre 4 et 5 nm, la transition metal-isolant est supprimee et la bicouche demeure isolante a toutes les temperatures. Dans la bicouche ayant une couche ferromagnetique de 4 nm, la transition metal-isolant est retrouvee sous l'application d'un champ magnetique de 1.5 T et une magnetoresistance de 50% est obtenue a 75K sous l'application d'un champ magnetique de 0.5 T. Un changement dans le champ magnetique necessaire a l'aimantation de la couche d'ordre de charges est egalement mesure, suggerant que la couche ferromagnetique induit des domaines ferromagnetiques dans la couche tampon. Ces resultats sont expliques par l'interaction mecanique dominant l'interface et favorisant la localisation des charges. L'anisotropie de la contrainte mecanique semble jouer un role supplementaire comparativement aux contraintes procurees par un substrat cubique. La rotation des octaedres ou la distorsion de Jahn-Teller, deux distorsions locales, pourraient contribuer a la tendance a localiser les charges. De plus, la phase isolante mesuree dans le Nd2/3Sr 1/3O3, normalement metallique, demeure plus sensible au champ magnetique que la phase isolante induite dans ce meme materiau par un substrat cubique isolant. La domination des contraintes mecaniques sur les influences ferromagnetiques suggere que cette influence soit le vecteur principal pour le controle de la separation de phases electroniques des manganites.

Laverdiere, Jonathan

145

Medición de los parámetros cosmológicos q0, OmegaM, y OmegaLambda, usando supernovas de Tipo Ia distantes  

Microsoft Academic Search

Las supernovas de tipo Ia son una herramienta de gran precisión para la medición de distancias de interés cosmológico. Los métodos recientes de calibración de su luminosidad intrínseca, que hacen uso de la forma de las curvas de luz en varios colores y permiten diferenciar entre supernovas distantes, intrínsecamente débiles, u oscurecidas por extinción, reducen la dispersión del método que

A. Clocchiatti

1998-01-01

146

En Textos de la Antropologa Contempornea, Francisco Cruces Villalobos y Beatriz Prez Galn, compiladores. Madrid: Univ.  

E-print Network

. Y tras los ataques de Al-Qaeda del 2001 sobre el Pentágon y las torres del World Trade Center, el�n, compiladores. Madrid: Univ. Nacional de Educaci�n a Distancia, 2010. #12;cano al de los regalos entre esposos moral -comúnment asociado al relativismo cultural- como una de las fuerzas corruptoras de la humanidad

Stoiciu, Mihai

147

LES APPORTS DE LA THEORIE DU CONTRAT SOCIAL A L'EXPLICATION DES RUPTURES DE RELATIONS DE LONG TERME ENTRE ORGANISATIONS : UNE APPLICATION AUX RELATIONS BANQUES\\/PME  

Microsoft Academic Search

Cet article vise à montrer la pertinence du cadre d'analyse des normes contractuelles de Macneil pour expliquer les ruptures de relations de long terme entre organisations. Pour ce faire des entretiens ont été conduits sur 13 dyades chargés d'affaires\\/représentants de PME. Une analyse quantitative a ensuite été conduite sur 300 PME.

Isabelle Prim-Allaz; Jean Perrien; Bernard Pras

2001-01-01

148

Guide de prsentation d'une demande de bourse 1 Lettre de demande spcifiant entre autres l'objet de la demande de bourse (bourse  

E-print Network

Guide de présentation d'une demande de bourse 1 Lettre de demande spécifiant entre autres l'objet de la demande de bourse (bourse d'étude ­ renouvellement ou nouvelle demande; bourse de fin de comprenant communications, publications, bourses obtenues ou demandées, emplois occupés (assistances de cours

Parrott, Lael

149

COOPERACIÓN Y CONFLICTOS AMBIENTALES LOCALES. ENTRE EMPRESAS, COMUNIDADES, NUEVOS MOVIMIENTOS SOCIALES Y EL PAPEL DEL GOBIERNO. EL CASO DE CERRO DE SAN PEDRO (MÉXICO)  

Microsoft Academic Search

El objetivo de este trabajo es analizar las relaciones de cooperación y conflicto entre una compañia minera y las comunidades, los Nuevos Movimientos Sociales y los tres niveles de gobierno involucrados. La compañia Minera inició operaciones para una mina a cielo abierto de oro y plata con el apoyo de oficiales de los gobiernos locales, estatales y federal. Los habitantes

José G. Vargas-Hernández

2007-01-01

150

L'univers des fast-foods Lorsque l'ethnologue entre dans un fast-food, alors se met en place une irrsistible envie de  

E-print Network

L'univers des fast-foods Lorsque l'ethnologue entre dans un fast-food, alors se met en place une dans un fast-food, alors se met en place une irrésistible envie de mesurer l'étendue des enjeux qui y pratique alimentaire des fast-foods est de manière incontournable liée à une certaine culture de la

Boyer, Edmond

151

SPECTRES DE RFLEXION ET CONSTANTES OPTIQUES DE LA PROUSTITE (Ag3AsS3) ENTRE 14 ET 600 cm-1  

E-print Network

L-95 SPECTRES DE R�FLEXION ET CONSTANTES OPTIQUES DE LA PROUSTITE (Ag3AsS3) ENTRE 14 ET 600 cm-1, accepte le 6 janvier 1977) Résumé. 2014 Les constantes optiques de la proustite (Ag3AsS3), à 300 K et à 80 Optical constants of proustite (Ag3AsS3) are determined from 18 to 700 03BCm by Kra- mers-Kronig analysis

Paris-Sud XI, Université de

152

Absence de corrlation entre la masse et l'activit enzymatique de deux enzymes majori-taires (lipase et trypsine) de diffrents sucs pancratiques humains. Incidence sur les  

E-print Network

Absence de corrélation entre la masse et l'activité enzymatique de deux enzymes majori- taires, Grossman et Ivy (1 ) le phénomène d'adapta- tion des enzymes pancréatiques au régime a été clairement méthodologie pré- cise et jusqu'à présent les variations des enzymes pancréatiques sous l'influence de divers

Paris-Sud XI, Université de

153

Etude XPS de films minces de NbN : dcapage, oxydation l'air, et oxydation thermique entre 20 C et 200 C.  

E-print Network

979 Etude XPS de films minces de NbN : décapage, oxydation à l'air, et oxydation thermique entre 20- scopie de photo-électrons X (XPS) et comparé à celui des films de Nb. Une comparaison des oxydations natives de ces films met en évidence le fait que l'oxydation de NbN dépend moins des éléments polluants

Paris-Sud XI, Université de

154

SUR LES EXPRIENCES DE M. MOSER ET DE M. MIESLER POUR DTERMINER LES DIFFRENCES DE POTENTIEL ENTRE UNE LECTRODE ET UN LEC-  

E-print Network

par l'écoulelnent du mercure dans un électrolyte. Du mercure coule en mince filet dans le liquide étudié; ce mercure est relié à l'une des paires de cadrans d'un électro- mètre, l'autre paire de cadrans volt, puisque, entre le mercure et l'amalgame de zinc, cette différence est d'environ de o~B5. La

Paris-Sud XI, Université de

155

L'immunothrapie dans le cancer pithlial de l'ovaire : entre espoir et ralit. Immunotherapy in epithelial ovarian carcinoma: hope and reality  

E-print Network

1 L'immunothérapie dans le cancer épithélial de l'ovaire : entre espoir et réalité. Immunotherapy in epithelial ovarian carcinoma: hope and reality Vincent Lavoué1,2,3, *, MD, PhD, Fabrice Foucher1 , MD Reproduction (2014) in press" DOI : 10.1016/j.jgyn.2013.10.004 #12;2 Titre courant : Immunologie du cancer de l

Boyer, Edmond

156

LA VISITE AU ZOO Regards sur l'animal sauvage captif au XIXe sicle et dans l'entre-deux-guerres  

E-print Network

LA VISITE AU ZOO Regards sur l'animal sauvage captif au XIXe siècle et dans l'entre-deux-guerres � bâtiments et d'enclos dispersés dans un jardin à l'anglaise. Ces « zoos », qui se différencient des mobiles scientifiques initiaux, ces zoos deviennent des vitrines de la nature sauvage pour des populations

Paris-Sud XI, Université de

157

Une madeleine peut en cacher une autre: Un dialogue mythique sur le Temps entre Marcel Proust, Alfred Hitchcock et Chris Marker  

Microsoft Academic Search

La Jetée et Immemory, œuvres de Chris Marker, réalisent un lien des plus inattendus entre À la recherche du temps perdu de Marcel Proust et Vertigo d’Alfred Hitchcock. En nous interrogeant sur la nature des ‘Madeleines’ se trouvant dans ces deux œuvres, Immemory indique l’enjeu du raccord qu’opère La Jetée. Car l’œuvre hitchcockienne, comme la proustienne, recèle une philosophie unique

Hervé Picherit

2012-01-01

158

Prim-Allaz I., Perrien J & Pras B., (2001) Les apports de la thorie du contrat social l'explication des ruptures de relations de long terme entre organisations : une application aux  

E-print Network

Prim-Allaz I., Perrien J & Pras B., (2001) Les apports de la théorie du contrat social à l RELATIONS DE LONG TERME ENTRE ORGANISATIONS : UNE APPLICATION AUX RELATIONS BANQUES/PME Isabelle PRIM-ALLAZ

Paris-Sud XI, Université de

159

Nuevos aspectos de la reacción entre el aminal macrocíclico 1:3,7:9,13:15,19:21-tetrametilentetrahexahidropirimidina (TMTP) frente a fenoles p-halogenados en condiciones “solvent free”.  

E-print Network

??Trujillo Pérez, Ginna Paola (2012) Nuevos aspectos de la reacción entre el aminal macrocíclico 1:3,7:9,13:15,19:21-tetrametilentetrahexahidropirimidina (TMTP) frente a fenoles p-halogenados en condiciones “solvent free”. Maestría… (more)

Trujillo Pérez, Ginna Paola

2012-01-01

160

Factores socio-econ?micos asociados a la percepci?n de situaci?n socioecon?mica entre adultos mayores de dos pa?ses latinoamericanos  

PubMed Central

El objetivo principal del artículo es estudiar la asociación entre la percepción subjetiva sobre la situación económica propia y una serie de medidas objetivas de bienestar socioeconómico –fuentes de ingresos, tenencia de vivienda, nivel educativo y transferencias familiares informales de dinero- entre adultos mayores de dos países Latinoamericanos: México y Costa Rica. Los datos se obtienen de las primeras rondas de dos encuestas sobre envejecimiento: CRELES para Costa Rica y ENASEM para México. La variable dependiente más importante se obtiene de las respuestas a las pregunta “¿Cómo califica su situación económica actual?” en Costa Rica y “¿Diría usted que su situación económica es…?” en México. Para ambas encuestas, las respuestas se codificaron en forma binaria; el código 0 representa las categorías Excelente, Muy buena y Buena, y el código 1 representa a las categorías Regular y Mala. Se encontró que el ingreso por jubilación es un importante determinante de la percepción de bienestar en ambos países. En Costa Rica, el ingreso del cónyuge y la tenencia de vivienda son importantes predictores de la percepción de bienestar, mientras que en México, los ingresos por transferencias están fuertemente asociados con dicha percepción.

Brenes-Camacho, Gilbert

2014-01-01

161

*. A. Mch, L'ternel conflit entre les graphologues et grapho-analystes et les spcialistes en critures (avril-juin 2001) LIV : 02 Revue Internationale de Criminologie et de Police  

E-print Network

*. A. M�ch, �L'�ternel conflit entre les graphologues et grapho-analystes et les sp�cialistes en Fortier, Mont-Saint-Hilaire, Qu�bec, J3H 2X4, Canada. ARTICLE L'�TERNEL CONFLIT ENTRE LES GRAPHOLOGUES ET�cialistes ou experts en �critures et signatures sont fr�quemment en conflit avec de nombreux graphologues ou

Spino, Claude

162

JOURNAL DE PHYSIQUE ColloqueC5, supplment au no 11-12, Tome 34, Novembre-Dcembre 1973,pageC5-171 PROBABILIT DE TRANSITION ENTRE NIVEAUX ZEEMAN EN PRSENCE  

E-print Network

JOURNAL DE PHYSIQUE ColloqueC5, supplément au no 11-12, Tome 34, Novembre-Décembre 1973,pageC5-171 PROBABILIT� DE TRANSITION ENTRE NIVEAUX ZEEMAN EN PR�SENCE D'UNE INTERACTION HYPERFINE ET D'UNE CONTRAINTE transitions entre deux niveaux Zeeman d'un ion ou d'un atome soumis àune contrainte cristallinedépend

Paris-Sud XI, Université de

163

In planta mutagenesis of Src homology 3 domain-like fold of NdhS, a ferredoxin-binding subunit of the chloroplast NADH dehydrogenase-like complex in Arabidopsis: a conserved Arg-193 plays a critical role in ferredoxin binding.  

PubMed

Chloroplast NADH dehydrogenase-like (NDH) complex mediates cyclic electron transport around photosystem I and chlororespiration in angiosperms. The Src homology 3 domain (SH3)-like fold protein NdhS/CRR31 is an NDH subunit that is necessary for high affinity binding of ferredoxin, indicating that chloroplast NDH functions as a ferredoxin:plastoquinone oxidoreductase. However, the mechanism of the interaction between NdhS and ferredoxin is unclear. In this study, we analyzed their interaction in planta by using site-directed mutagenesis of NdhS. In general, binding of ferredoxin to its target proteins depends on electrostatic interaction. In silico analysis predicted the presence of a positively charged pocket in the SH3-like domain of NdhS, where nine charged residues are highly conserved among plants. Systematic alteration of these sites with neutral glutamine revealed that only arginine 193 was required for high NDH activity in vivo. Further replacement of arginine 193 with negatively charged aspartate or glutamate or hydrophobic alanine significantly decreased the efficiency of ferredoxin-dependent plastoquinone reduction by NDH in ruptured chloroplasts. Similar results were obtained in in vivo analyses of NDH activity and electron transport. From these results, we propose that the positive charge of arginine 193 in the SH3-like domain of NdhS is critical for electrostatic interaction with ferredoxin in vivo. PMID:24225949

Yamamoto, Hiroshi; Shikanai, Toshiharu

2013-12-20

164

Odette Hall -50, rue St. Joseph 2me, Toronto, Ontario M5S 1J4 http://www.french.utoronto.ca/EntreNous Tlphone: 416.926.2302 -Fax: 416.926.2328 Courrier lectronique: french.secretary@utoronto.ca  

E-print Network

://www.french.utoronto.ca/EntreNous Téléphone: 416.926.2302 - Fax: 416.926.2328 Courrier électronique: french.secretary@utoronto.ca 1 ENTRE NOUS://www.french.utoronto.ca/EntreNous Téléphone: 416.926.2302 - Fax: 416.926.2328 Courrier électronique: french.secretary@utoronto.ca 2 ENTRE NOUS.926.2328 Courrier électronique: french.secretary@utoronto.ca 3 ENTRE NOUS Juin 2013 University of Toronto, �tudes

Sokolowski, Marla

165

Literacia Económica entre alunos Universitários  

Microsoft Academic Search

It is widely recognized the important role played by human capital, knowledge and innovation for the establishment of the basic conditions for permanent economic growth. On particular aspect of this general issue interests us in particular; the level of economic literacy among young students who arrive at the university to get a degree not only in economic sciences (Economics, Management,

José Manuel Madeira Belbute; Miguel Rocha de Sousa

2004-01-01

166

PS-GRADUAO EM BIOLOGIA DE FUNGOS, ALGAS E PLANTAS  

E-print Network

Pereira Dias UFSC ­ Florianópolis Anatomia vegetal 6. Genivaldo Alves da Silva UNIC ­ Primavera do Leste ­ Florianópolis Anatomia vegetal 9. Jaime Andres Duque Barbosa Universidad de Antioquia Medellín ­ Colômbia 19. Roberta Mara Royer UFSC ­ Florianópolis Anatomia vegetal 20. Silvaney Martins Sardinha UNIC

Floeter, Sergio Ricardo

167

Plantas transgênicas resistentes aos herbicidas: situação e perspectivas  

Microsoft Academic Search

RESISTANT TRANSGENIC PLANTS TO THE HERBICIDE: SITUATION AND PERSPECTIVES Genetically modified organisms (GMOs) or transgenic may be plants, animals or microorganisms that have DNA inserted into their cells from another organism. In some cases, this organism may be from a other individue of the same species, or from another species with which they would not normally cross-breed. The use of

Patrícia Andréa Monquero

2005-01-01

168

Performance of Tawa Hydroelectric Power Plant-A Case Study  

Microsoft Academic Search

Small Hydro Power Project may be used as one of the option for achieving the energy targets in a developing country like India where center or state Governments have limited financial resources to put in large projects which require long gestation period. One additional advantage with the Small Hydro Power Project is that private partners may get attracted due to

T. S. Mehra; N. I. Alvi; A. Rajasekhar

169

Elucidation and in planta reconstitution of the parthenolide biosynthetic pathway.  

PubMed

Parthenolide, the main bioactive compound of the medicinal plant feverfew (Tanacetum parthenium), is a promising anti-cancer drug. However, the biosynthetic pathway of parthenolide has not been elucidated yet. Here we report on the isolation and characterization of all the genes from feverfew that are required for the biosynthesis of parthenolide, using a combination of 454 sequencing of a feverfew glandular trichome cDNA library, co-expression analysis and metabolomics. When parthenolide biosynthesis was reconstituted by transient co-expression of all pathway genes in Nicotiana benthamiana, up to 1.4?gg(-1) parthenolide was produced, mostly present as cysteine and glutathione conjugates. These relatively polar conjugates were highly active against colon cancer cells, with only slightly lower activity than free parthenolide. In addition to these biosynthetic genes, another gene encoding a costunolide and parthenolide 3?-hydroxylase was identified opening up further options to improve the water solubility of parthenolide and therefore its potential as a drug. PMID:24704560

Liu, Qing; Manzano, David; Tani?, Nikola; Pesic, Milica; Bankovic, Jasna; Pateraki, Irini; Ricard, Lea; Ferrer, Albert; de Vos, Ric; van de Krol, Sander; Bouwmeester, Harro

2014-05-01

170

Finalists named in University of Canterbury's $85,000 entr competition Ten finalists have been named in the annual $85,000 challenge competition run by the University of  

E-print Network

cosmetics company with an environmental difference. ``Everything we manufacture is solid, biodegradable bars are raved about and we have received placements in both print and digital media, both nationally of Canterbury Media consultant Kip Brook on 0275 030168. -- Hannah Marshall Public Relations Executive Entré Ltd

Hickman, Mark

171

W. CHANDLER ROBERTS. 2014 On an analogy between the conductivity for heat and the induction-balance effect of copper-tin alloys (Sur la concordance entre l'effet  

E-print Network

393 W. CHANDLER ROBERTS. 2014 On an analogy between the conductivity for heat and the induction-balance effect of copper-tin alloys (Sur la concordance entre l'effet de la balance d'induction sur les alliages courbe des inductions manifestées dans la balance de Hughes par les alliages de cuivre et d'étain, on re

Paris-Sud XI, Université de

172

Planta (1985)165:548-553 Planta9 Springer-Verlag 1985 Porphyranereocystis: A dual-daylength seaweed  

E-print Network

treatment for completion of its life cycle. This stringent environmental control of its reproduction appears Sound region (Fallis 1915; Sheldon 1915; Hurd 1915; Rigg 1917; Duncan 1973) and in even deeper water 1981). At maturity, presumably as a result of sex- ual reproduction, diploid carpospores are pro- duced

California at Santa Cruz, University of

173

The Effectiveness of Iberian Protected Areas in Conserving Terrestrial Biodiversity  

E-print Network

a las especies de plantas y animales que consideramos (73­98%). Sin embargo, las especies de algunos animales seleccionadas coinciden con los LIC. Sin embargo, el grado de coincidencia var´ia entre 0­3% y 74

Moreno Saiz, Juan Carlos

174

QUELS LIENS ENTRE L'IMAGE DU PAYS ET L'IMAGE DE L'UNE DE SES VILLES ? UNE APPLICATION AU CAS DE LA FRANCE ET DE LYON  

Microsoft Academic Search

Cette recherche s'intéresse aux liens existants entre l'image du pays et l'image de l'une de ses villes. Pour ce faire, une revue de littérature sur l'image des destinations est proposée. Elle fait ressortir la quasi absence de recherche visant à lier les différents niveaux composants une destination (pays, région, ville,...). Une étude quantitative a été conduite dans 4 pays (Canada,

Isabelle Prim-Allaz; Line Ricard; Courvoisier François; Khadir-Poggi Yasmina

2008-01-01

175

1/ Achetez un smartphone BlackBerry CurveTM 9320 sur mobile.free.fr entre le 26 aot et le 30 septembre 2013 inclus. 2/ Rassemblez les pices justificatives suivantes  

E-print Network

1/ Achetez un smartphone BlackBerry® CurveTM 9320 sur mobile.free.fr entre le 26 août et le 30'achat de votre smartphone BlackBerry® CurveTM 9320. · L'original de l'étiquette comportant le numéro IMEI du smartphone (à découper sur l'emballage, aucun autre code barre ni copie ne seront acceptés) · Le

Fouquet, Yannick

176

‘The Art I Love is the Art of Cowards’: Francis Picabia and René Clair's Entr'acte and the Politics of Death and Remembrance in France after World War One  

Microsoft Academic Search

Francis Picabia and René Clair's film Entr'acte (1924), shown within the context of the ballet Relâche, undertaken in collaboration with the composer Eric Satie, is a critique by Picabia of the political and aesthetic effects of the call-to-order in France after the Great War (1914–1918), with affinities to his critical position expressed in both paintings and writings. This critique is

Christopher Townsend

2009-01-01

177

On-Site Wastewater Treatment Systems: Constructed Wetlands (Spanish)  

E-print Network

tejido duro o suave, algunos, expertos creen que las plantas de tejido duro son mejores porque pueden ofrecer una v?a para que el ox?geno entre al humedal durante el invierno y reducir la necesidad del mantenimiento de plantas. Sin embargo, los residentes... prefieren plantas de tejido suave porque por lo general tienen flores y son llamativas. Recuerde que si usa plantas de tejido suave, el sistema puede necesitar m?s mantenimiento. Tratamiento Primero, el tanque s?ptico trata las aguas negras. El tanque, que...

Lesikar, Bruce J.; Enciso, Juan

2002-04-18

178

Pincharse sin infectarse: estrategias para prevenir la infecci?n por el VIH y el VHC entre usuarios de drogas inyectables  

PubMed Central

Resumen Objetivo Desde principios de los noventa, en la ciudad de Nueva York se han implementado con éxito programas para reducir la incidencia del virus de la inmunodeficiencia humana (VIH) y, en menor medida, del virus de la hepatitis C (VHC). A pesar de ello, aproximadamente el 70% de los usuario de drogas inyectables (UDI) están infectados por el VHC. Queremos investigar cómo el 30% restante se las ha arreglado para no infectarse. El Staying safe (nombre original del estudio) explora los comportamientos y mecanismos que ayudan a evitar la infección por el VHC y el VIH a largo plazo. Material y métodos Hemos utilizado el concepto de «desviación positiva» aplicado en otros campos de salud pública. Estudiamos las estrategias, prácticas y tácticas de prevención de aquellos UDI que, viviendo en contextos de alta prevalencia, se mantienen sin infectar por VIH y el VHC, a pesar de haberse inyectado heroína durante años. Los resultados preliminares presentados en este artículo incluyen el análisis de las entrevistas realizadas a 25 UDI (17 doble negativos, 3 doble positivos y 5 con infección por el VHC y sin infección por el VIH). Se usaron entrevistas semiestructuradas que exploraban con detalle la historia de vida de los sujetos, incluyendo su consumo de drogas, redes sociales, contacto con instituciones, relaciones sexuales y estrategias de protección y vigilancia. Resultados La intencionalidad es importante para no infectarse, especialmente durante períodos de involución (períodos donde hay un deterioro económico y/o social que llevan al que se inyecta a situaciones de mayor riesgo). Presentamos tres dimensiones independientes de intencionalidad que conllevan comportamientos que pueden ayudar a prevenir la infección: a) evitar «el mono» (síntomas de abstención) asegurando el acceso a la droga; b) «llevarlo bien» para no convertirse en un junkie y así evitar la «muerte social» y la falta de acceso a los recursos, y c) seguir sin infectarse por el VIH (sólo un doble negativo tuvo un amplio conocimiento sobre la hepatitis C). Estas intencionalidades no son mutuamente excluyentes. La presencia de varias refuerza la puesta en práctica a diario de comportamientos que pueden ayudar al que se inyecta a mantenerse libre de infecciones durante años. Algunas prácticas que hemos identificado se implementan en grupo y se comunican de UDI a UDI, de esta manera se extienden entre algunas redes sociales de UDI. Conclusiones Los UDI que permanecen sin infectarse planean e implementan estrategias de prevención en circunstancias donde otros UDI aplican prácticas de riesgo. El mantenimiento de la no infección no es, por lo tanto, un resultado del azar, sino más bien el resultado del esfuerzo (agencia) de los UDI. Investigar y extender estas estrategias y tácticas a través de programas de prevención podría contribuir a la prevención del VIH y el VHC. PMID:21915175

MATEU-GELABERT, P.; FRIEDMAN, S.; SANDOVAL, M.

2011-01-01

179

Toxicit? s?rotoninergique r?sultant d'une interaction m?dicamenteuse entre le bleu de m?thyl?ne et les inhibiteurs de la recapture de la s?rotonine  

PubMed Central

RÉSUMÉ Contexte : Le bleu de méthylène est employé en pratique pour diverses raisons médicales. Des données récentes ont évoqué une interaction potentielle avec les inhibiteurs de la recapture de la sérotonine, pouvant conduire à une toxicité sérotoninergique. Objectif : Décrire le risque de toxicité sérotoninergique associé à l’interaction entre le bleu de méthylène et les inhibiteurs de la recapture de la sérotonine. Sources de l’information : Les publications pertinentes ont été ciblées systématiquement au moyen des moteurs de recherche MEDLINE (1946 au 21 mars 2013) et Embase (1974 à 2013, semaine 11) en utilisant les mots clés suivants : methylene blue, methylthioninium, monoamine oxidase inhibitors, serotonin reuptake inhibitors et serotonin syndrome. Aucune restriction touchant l’indication du bleu de méthylène ou la langue n’a été appliquée. Les références des publications ont également été analysées. Sélection des études et extraction des données : Dix-huit études de cas et deux séries de cas systématiques ont été sélectionnées. Aucune étude clinique aléatoire n’a encore été publiée. Synthèse des résultats : La première étude de cas à avoir soupçonné une interaction entre le bleu de méthylène et les inhibiteurs de la recapture de la sérotonine est parue en 2003. Dix-sept autres études de cas décrivant le même type d’interaction ont par la suite été rapportées. Les deux séries de cas ont regroupé les données de quelques 325 parathyroïdectomies où le bleu de méthylène avait été employé comme agent colorant. Les 17 patients qui ont présenté une toxicité du système nerveux central prenaient tous en période préopératoire des inhibiteurs de recapture de la sérotonine. Conclusion : Lorsqu’il est administré en concomitance avec des inhibiteurs de recapture de la sérotonine, le bleu de méthylène peut conduire à une toxicité sérotoninergique à une dose aussi faible que 0,7 mg/kg. En effet, il posséderait des propriétés inhibitrices de la monoamine oxidase A. Des précautions doivent être prises pour éviter cette interaction. PMID:23950608

Charbonneau, Annie

2013-01-01

180

DIMED 86: Discurso dos Media e Ensino a Distancia = Discours des Media et Enseignement a Distance = Media Speech and Distance Teaching. Papers Presented at a Seminar (21st, Algarve, Portugal, March 10-15, 1986).  

ERIC Educational Resources Information Center

Presentations at this seminar on distance education focused on the different types of speech in multimedia presentations which contribute to the elaboration (simulated or substituted) of a situation involving different relationships. In addition to opening and closing remarks by Marcel de Greve and a final report by the Scientific Committee of…

Coelho, Maria Eduarda Leal

181

MODELO PSICOPEDAGÓGICO PARA EL DISEÑO Y LA EVALUACIÓN DE MATERIALES DIDÁCTICOS EN LA EDUCACIÓN A DISTANCIA (PSYCHO PEDAGOGICAL MODEL, FOR THE DESIGN AND EVALUATION OF TEACHING MATERIALS IN DISTANCE EDUCATION)  

Microsoft Academic Search

This paper is an introduction to a psycho pedagogical model for the design and evaluation of tea- ching material that includes judgment elements for design, production and evaluation of teaching ma- terials for Distance Education. It's supported in Cognitive Sciences especially about further autono- mous learning and self adjustment culture in students. This proposal goes around to the permanent learning

Rina María Martínez Romero; Enrique Galindo Rodríguez; Lourdes Pérez Cardona; Guillermo Roquet García; Fernando Gamboa; Rodríguez Roberto; Garduño Vera; Andrea Olmos; Roa Yolanda; Orijel Arenas; Norma Silvia; Pérez Gallardo; Eduardo Posadas; Manzano Rosa; María Prol Ledesma

182

Introduccin Un nmero creciente de estudios est  

E-print Network

(mutualismos) entre especies, concretamente las que se establecen entre muchas plantas y animales, promueven la invasiones vegetales y animales. Por otro lado, una vez integradas en la comunidad receptora, las especies flores o frutos y por animales polinizadores o dispersantes de semillas, respectivamente. Actualmente, es

Traveset, Anna

183

COMPARAISON ENTRE LECTROSYNRSE ET PREUVES SROLOGIQUES CLASSIQUES  

E-print Network

brucellosis were comparatively studied by serum agglutination (SA), complement fixation (CF), rose bengal (RB detect antibodies against cell-wall fractions of Brucella (LPS), whereas CIEP responds to intracellular trois fois en tampon phosphate pH 7,2. Une suspension contenant 300 x 109 germes par ml est préparée et

Paris-Sud XI, Université de

184

Interaes entre aves marinhas e Sotalia guianensis  

E-print Network

@power.ufscar.br. Rev. bras. Zooci�ncias Juiz de Fora V. 6 N�1 Jul/2004 p. 103-114 #12;104 Rev. bras. Zooci�ncias Juiz acasalamento, apresentando significativas �reas de concentra��o (CREMER, 2000). Intera��es #12;105105 Rev. bras

Simões-Lopes, Paulo César

185

Article original Entre neurosciences et neurophilosophie  

E-print Network

cognitives Between neuroscience and neurophilosophy: cognitive psychology and cognitive science G. Tiberghien, be nothing more than a mere stage in the integration of cognitive psychology into the cognitive neurosciences Keywords: Brain; Cognition; Cognitive neuroscience; Cognitive philosophy, Cognitive psychology; Cognitive

Dominey, Peter F.

186

LE CONTROLE DE GESTION ENTRE RESPONSABILITE GLOBALE  

E-print Network

) tools and indicators are often of a double nature and as well part of the financial performance oriented, is not a given. Key Words: social responsibility of the firm, financial performance, management

Paris-Sud XI, Université de

187

High Tech : entre dsirs Franoise Berthoud  

E-print Network

, virtualisation, économe, greenIT, etc #12;CO2 économisé versus émissions CO2 Economies potentielles (sur 98) (2) Prakash, 2011 cité dans �ko-Institut e.V., 2012. Recycling critical raw materials from waste electronic equipment (3) « Critical raw materials for the EU », 2010 De 1 à 100 mg d'indium1 Un écran LCD de

Canet, Léonie

188

"LA IGUALDAD ENTRE MUJERES Y HOMBRES  

E-print Network

sexual y por razón de sexo en las Universidades 5 13 17 23 37 49 53 57 #12;#12;5 1.1. NORMATIVA ESTATAL producir discriminación por razón de sexo y la responsabilidad de los poderes públicos en el logro de la

Escolano, Francisco

189

Article original Relations entre caractristiques de retrait  

E-print Network

and wood density for Scots pine, silver fir and Norway spruce. Relationships between basic wood density species were compared (table III): pine wood had the highest values; the values for fir and spruce were abies / retrait du bois / infradensité Summary — Relationships between wood shrinkage properties

Paris-Sud XI, Université de

190

MONITORING GEOCHIMIQUE PAR COUPLAGE ENTRE LES GAZ  

E-print Network

objectif de limitation des émissions de gaz à effet de serre dans l'atmosphère, la séquestration géologique rares, isotopes du carbone, travertin. SUMMARY To limit emissions of greenhouse gases in the atmosphere

Paris-Sud XI, Université de

191

Astrofsica Extragalctica y Cosmologa. Problemas y preguntas clave IV.  

E-print Network

a Andrómeda? ¿Cómo se puede determinar la distancia a Andrómeda? 5. Una galaxia irregular Magallánica tiene comóvil entre la Vía Láctea y una galaxia cuyo corrimiento al rojo medido hoy es z=2 con la evolución el horizonte. 11.Una galaxia se observa a z=0.69. ¿Cuánto tiempo tardó la luz en llegar a nosotros si

Aretxaga, Itziar

192

Aceptabilidad del diagn?stico r?pido casero para HIV entre hombres gay y otros hombres que tienen sexo con hombres (G&HSH) de la Ciudad de Buenos Aires  

PubMed Central

Resumen El uso del diagnóstico rápido para HIV en Argentina, así como otros países de Latinoamérica, ha sido limitado hasta el momento. Este trabajo reporta los resultados provenientes de un estudio cualitativo realizado entre hombres gays y otros hombres que tienen sexo con hombres (G&HSH) de la Ciudad de Buenos Aires, Argentina. El objetivo principal del mismo fue conocer las ventajas y desventajas que los hombres G&HSH perciben en relación al diagnóstico rápido casero para HIV. Se realizaron ocho grupos focales con 73 participantes en los cuales se discutió acerca de las ventajas y desventajas del uso de los diagnósticos rápidos. Las respuestas fueron codificadas utilizando un programa para análisis de datos cualitativos (NVivo) y analizadas temáticamente. Los participantes describieron numerosas ventajas sobre el uso del diagnóstico rápido casero, aunque algunos reportaron importantes preocupaciones dentro de las cuales se destaca la posibilidad de impulsos suicidas si alguien recibe un resultado positivo estando solo. En términos generales se observó una gran aceptabilidad para el uso del diagnóstico rápido si el mismo es realizado por personal de salud en lugares acondicionados para este fin.

Balan, Ivan C.; Carballo-Dieguez, Alex; Marone, Ruben O.; Pando, Maria A.; Barreda, Victoria; Avila, Maria M.

2011-01-01

193

Comunicacin entre ProcesosComunicacin entre Procesos por pase de mensajespor pase de mensajes  

E-print Network

librerías especiales Las primitivas principales son: send(destination, this_msg, msg_length) receive(source, a_msg, &how_long) #12;IntroducciónIntroducción Sistemas donde la comunicación por memoria enlaces pueden ser unidireccionales o bidireccionales send(tothisprocess, this_msg, msg_length) receive

Cardinale Villarreal, Yudith C.

194

Soil bacteria augment Arabidopsis photosynthesis by decreasing glucose sensing and abscisic acid levels in planta  

E-print Network

Soil bacteria augment Arabidopsis photosynthesis by decreasing glucose sensing and abscisic acid as belowground microflora, whether and how soil symbionts regulate photosynthesis has yet to be reported. Here photosynthesis through the modulation of endogenous sugar/ ABA signaling, and establish a regulatory role

Paré, Paul W.

195

Wide Screening of Phage-Displayed Libraries Identifies Immune Targets in Planta  

PubMed Central

Microbe-Associated Molecular Patterns and virulence effectors are recognized by plants as a first step to mount a defence response against potential pathogens. This recognition involves a large family of extracellular membrane receptors and other immune proteins located in different sub-cellular compartments. We have used phage-display technology to express and select for Arabidopsis proteins able to bind bacterial pathogens. To rapidly identify microbe-bound phage, we developed a monitoring method based on microarrays. This combined strategy allowed for a genome-wide screening of plant proteins involved in pathogen perception. Two phage libraries for high-throughput selection were constructed from cDNA of plants infected with Pseudomonas aeruginosa PA14, or from combined samples of the virulent isolate DC3000 of Pseudomonas syringae pv. tomato and its avirulent variant avrRpt2. These three pathosystems represent different degrees in the specificity of plant-microbe interactions. Libraries cover up to 2×107 different plant transcripts that can be displayed as functional proteins on the surface of T7 bacteriophage. A number of these were selected in a bio-panning assay for binding to Pseudomonas cells. Among the selected clones we isolated the ethylene response factor ATERF-1, which was able to bind the three bacterial strains in competition assays. ATERF-1 was rapidly exported from the nucleus upon infiltration of either alive or heat-killed Pseudomonas. Moreover, aterf-1 mutants exhibited enhanced susceptibility to infection. These findings suggest that ATERF-1 contains a microbe-recognition domain with a role in plant defence. To identify other putative pathogen-binding proteins on a genome-wide scale, the copy number of selected-vs.-total clones was compared by hybridizing phage cDNAs with Arabidopsis microarrays. Microarray analysis revealed a set of 472 candidates with significant fold change. Within this set defence-related genes, including well-known targets of bacterial effectors, are over-represented. Other genes non-previously related to defence can be associated through this study with general or strain-specific recognition of Pseudomonas. PMID:23372747

Rioja, Cristina; Van Wees, Saskia C.; Charlton, Keith A.; Pieterse, Corne M. J.; Lorenzo, Oscar; Garcia-Sanchez, Susana

2013-01-01

196

Origin and evolution of metal P-type ATPases in Plantae (Archaeplastida)  

PubMed Central

Metal ATPases are a subfamily of P-type ATPases involved in the transport of metal cations across biological membranes. They all share an architecture featuring eight transmembrane domains in pairs of two and are found in prokaryotes as well as in a variety of Eukaryotes. In Arabidopsis thaliana, eight metal P-type ATPases have been described, four being specific to copper transport and four displaying a broader metal specificity, including zinc, cadmium, and possibly copper and calcium. So far, few efforts have been devoted to elucidating the origin and evolution of these proteins in Eukaryotes. In this work, we use large-scale phylogenetics to show that metal P-type ATPases form a homogenous group among P-type ATPases and that their specialization into either monovalent (Cu) or divalent (Zn, Cd…) metal transport stems from a gene duplication that took place early in the evolution of Life. Then, we demonstrate that the four subgroups of plant metal ATPases all have a different evolutionary origin and a specific taxonomic distribution, only one tracing back to the cyanobacterial progenitor of the chloroplast. Finally, we examine the subsequent evolution of these proteins in green plants and conclude that the genes thoroughly characterized in model organisms are often the result of lineage-specific gene duplications, which calls for caution when attempting to infer function from sequence similarity alone in non-model organisms. PMID:24575101

Hanikenne, Marc; Baurain, Denis

2013-01-01

197

EFEITO DE EXTRATOS AQUOSOS DE PLANTAS NA OVIPOSIÇÃO DA TRAÇA-DAS-CRUCÍFERAS, EM COUVE (1)  

Microsoft Academic Search

RESUMO Avaliou-se o efeito de extratos aquosos de Achillea millefolium L. (folhas), Azadirachta indica A. Juss. (folhas), Bidens pilosa L. (folhas, frutos e ramos), Bougainvillea glabra Choisy (folhas), Chenopodium ambrosioides L. (folhas, frutos e ramos), Datura suaveolens Humb & Bonpl. ex. Willd (folhas), Enterolobium contortisilliquum (Vell.) Morong (frutos), Mentha crispa L. (folhas e ramos), Nicotiana tabacum L. (folhas), Piper nigrum

CESAR AUGUSTO; MANFRÉ MEDEIROS; ARLINDO LEAL

2005-01-01

198

Carotenoid In Planta Development, Storage, and Bioaccessibility: A Comprehensive Approach to Nutrient Analysis  

E-print Network

greenhouse in coconut coir media using standard irrigation, fertilization, and pest management practices in two years. In the first year, harvest intervals were set at 10, 20, 40, and 55 days post pollination (DPP). The experimental design was expanded... greenhouse in coconut coir media using standard irrigation, fertilization, and pest management practices in two years. In the first year, harvest intervals were set at 10, 20, 40, and 55 days post pollination (DPP). The experimental design was expanded...

Jeffery, Jennifer L.

2010-01-14

199

EVALUACIÓN DE ALTERNATIVAS PARA LA LOCALIZACIÓN DE PLANTAS DE RECICLAJE DE RAEE EN ESPAÑA  

Microsoft Academic Search

As a consequence of new European legal regulations for treatment of waste electrical and electronic equipment (WEEE), recycling plants have to be installed in Spain. In this context, this contribution provides the decision maker with a ranking of Spanish municipalities according to their appropriateness for the installation of these plants. In order to rank the alternatives, the discrete multi-criteria decision

D. Queiruga; J. González-Benito

200

Planta (1994)192:372-378 P l ~ n t ~ 9 Springer-Verlag1994  

E-print Network

arrested flower buds with GA 3 restores normal anther development and produces fertile flowers. After GA 3 gibberellins and exhibits phenotypes including extreme dwarfism, reduced germination, and abnormal flower development, which are reversed by the application of gibberellic acid (GA3). Previous work has demonstrated

Jacobsen, Steve

201

Planta (2014) 239:591603 DOI 10.1007/s00425-013-1998-6  

E-print Network

Abbreviations HZ1 Spirodela polyrrhiza WX3 Lemna minor N Nitrogen NRE Nitrogen-removal efficiency GC/MS Gas- rhiza (HZ1) and Lemna minor (WX3), under natural and aseptic conditions. An activity-guided bioassay

Kronzucker, Herbert J.

202

Planta (1995)196:691-698 P l a n t ~ 9 Springer-Verlag 1995  

E-print Network

-mycorrhizal roots of intact Picea glauca (Moench) Voss. seedlings at four different concentration regimes - Compartmental analysis - Ni- trogen-13 - Picea Abbreviations and symbol: [NH+]cyt = cytoplasmic NH,~ concen

Kronzucker, Herbert J.

203

Planta (1995)196:674-682 P l m a t ~ 9 Springer-Verlag1995  

E-print Network

- in intact non-mycor- rhizal roots of Picea glauca (Moench) Voss. seedlings. Three compartments were defined) - Nitrogen-13 - Picea Abbreviations and symbols: [NO3]cyt = cytoplasmicNO3 concen- tration; [NO3]freespace

Kronzucker, Herbert J.

204

Evite los Conceptos Erróneos cuando Enseñe sobre las Plantas  

NSDL National Science Digital Library

The resource is useful for teacher's professional development by alerting educators to many plant misconceptions in teaching literature. In the thought provoking, peer reviewed resource fifty misconceptions are identified. Some misconceptions are easier to identify because they are oversimplifications, overgeneralizations, or misidentifications. Others are more difficult to identify because they are obsolete concepts and terms or flawed research.

David R. Hershey (biology education consultant;)

2005-05-01

205

Planta (2007) 226:839851 DOI 10.1007/s00425-007-0530-2  

E-print Network

metabolism, stress responses, hormone regulation and other expressed proteins were identiWed. Transcriptional / Published online: 12 May 2007 © Springer-Verlag 2007 Abstract Certain plant growth-promoting rhizobacteria (PGPR), in the absence of physical contact with a plant stimulate growth via volatile organic compound

Paré, Paul W.

206

Auxin transport sites are visualized in planta using fluorescent auxin analogs.  

PubMed

The plant hormone auxin is a key morphogenetic signal that controls many aspects of plant growth and development. Cellular auxin levels are coordinately regulated by multiple processes, including auxin biosynthesis and the polar transport and metabolic pathways. The auxin concentration gradient determines plant organ positioning and growth responses to environmental cues. Auxin transport systems play crucial roles in the spatiotemporal regulation of the auxin gradient. This auxin gradient has been analyzed using SCF-type E3 ubiquitin-ligase complex-based auxin biosensors in synthetic auxin-responsive reporter lines. However, the contributions of auxin biosynthesis and metabolism to the auxin gradient have been largely elusive. Additionally, the available information on subcellular auxin localization is still limited. Here we designed fluorescently labeled auxin analogs that remain active for auxin transport but are inactive for auxin signaling and metabolism. Fluorescent auxin analogs enable the selective visualization of the distribution of auxin by the auxin transport system. Together with auxin biosynthesis inhibitors and an auxin biosensor, these analogs indicated a substantial contribution of local auxin biosynthesis to the formation of auxin maxima at the root apex. Moreover, fluorescent auxin analogs mainly localized to the endoplasmic reticulum in cultured cells and roots, implying the presence of a subcellular auxin gradient in the cells. Our work not only provides a useful tool for the plant chemical biology field but also demonstrates a new strategy for imaging the distribution of small-molecule hormones. PMID:25049419

Hayashi, Ken-ichiro; Nakamura, Shouichi; Fukunaga, Shiho; Nishimura, Takeshi; Jenness, Mark K; Murphy, Angus S; Motose, Hiroyasu; Nozaki, Hiroshi; Furutani, Masahiko; Aoyama, Takashi

2014-08-01

207

Improving plant digestibility by in-planta expression of fungal enzymes  

Microsoft Academic Search

Cell walls play important roles in the life of plants. Moreover, as a major sink for photosynthates they factor heavily in the nutrition of farm animals and - potentially - in the future replacement of petroleum with a renewable, domestic source of fuel for transportation needs. Ferulic acid (4-hydroxy-3-metoxy-cinnamic acid) is the most abundant hydroxycinnamic acid (HCA) in grass cell

Tim Langdon; Barbara Hauck; Sue Dalton; Phillip Morris

208

Planta (2009) 230:111 DOI 10.1007/s00425-009-0921-7  

E-print Network

exclusively from Xowers. An insect- induced gene (AlCarS) with high sequence similarity to the Xorally A. lyrata ssp. petraea population. Recombinant AlCarS converts the sesquiterpene precursor, farnesyl AlCarS Arabidopsis lyrata ssp. petraea (E)- -caryophyllene synthase AtTPS21 A. thaliana terpene

Tholl, Dorothea

209

Screening for inhibitors of chloroplast galactolipid synthesis acting in membrano and in planta.  

PubMed

The knowledge of the membrane lipid metabolism in photosynthetic cells is expected to benefit from the availability of inhibitors acting at the level of specific enzymes like MGD1 (E.C. 2.4.1.46) that catalyzes the synthesis of monogalactosyldiacylglycerol (MGDG) in chloroplasts. MGDG is a major lipid of photosynthetic membrane, interacting with photosystems. It is the precursor of digalactosyldiacylglycerol that serves as a phospholipid surrogate when plants are deprived of phosphate, and it is a source of polyunsaturated fatty acids for jasmonic acid syntheses. MGD1 is activated by phosphatidic acid and thus a coupling point between phospholipid and galactolipid metabolisms. Here we describe a method to screen for inhibitors of MGD1 assayed in liposomes. Selected compounds can therefore reach the core of the biological membranes in which the target sits. We then describe a secondary screen to evaluate the efficiency of developed compounds at the whole plant level. Major issues raised by the screening of inhibitors acting on membrane proteins are discussed and can be useful for similar targets. PMID:24306864

Boudière, Laurence; Maréchal, Eric

2014-01-01

210

Identification and analysis of in planta expressed genes of Magnaporthe oryzae  

PubMed Central

Background Infection of plants by pathogens and the subsequent disease development involves substantial changes in the biochemistry and physiology of both partners. Analysis of genes that are expressed during these interactions represents a powerful strategy to obtain insights into the molecular events underlying these changes. We have employed expressed sequence tag (EST) analysis to identify rice genes involved in defense responses against infection by the blast fungus Magnaporthe oryzae and fungal genes involved in infectious growth within the host during a compatible interaction. Results A cDNA library was constructed with RNA from rice leaves (Oryza sativa cv. Hwacheong) infected with M. oryzae strain KJ201. To enrich for fungal genes, subtraction library using PCR-based suppression subtractive hybridization was constructed with RNA from infected rice leaves as a tester and that from uninfected rice leaves as the driver. A total of 4,148 clones from two libraries were sequenced to generate 2,302 non-redundant ESTs. Of these, 712 and 1,562 ESTs could be identified to encode fungal and rice genes, respectively. To predict gene function, Gene Ontology (GO) analysis was applied, with 31% and 32% of rice and fungal ESTs being assigned to GO terms, respectively. One hundred uniESTs were found to be specific to fungal infection EST. More than 80 full-length fungal cDNA sequences were used to validate ab initio annotated gene model of M. oryzae genome sequence. Conclusion This study shows the power of ESTs to refine genome annotation and functional characterization. Results of this work have advanced our understanding of the molecular mechanisms underpinning fungal-plant interactions and formed the basis for new hypothesis. PMID:20146797

2010-01-01

211

Cesio-137 en suelos y plantas de Guatemala. (Cesium 137 in oils and plants from Guatemala).  

National Technical Information Service (NTIS)

Since 1990 the project of radioactive and environmental contamination started in Guatemala. Studies about the radioactive contamination levels are made within the framework of this project. Cesium-137 has been an interest radionuclide, because it is a fis...

R. E. Ayala, J. F. Perez

1993-01-01

212

Planta (1996)198:78-86 P l m a t ~ 9 Springer-Verlag1996  

E-print Network

layer of germinating cereal seeds (reviewed in Hooley 1994), in vegetative shoot tissue (Chory et al of GA-regulated genes focus on genes whose mRNAs are increased in abundance, studies of barley or wheat

Jacobsen, Steve

213

Implicaciones fisiológicas de la osmorregulación en plantas Physiological implications of osmoregulation in plants  

Microsoft Academic Search

Under natural conditions, the plants are exposed to changing environmental conditions that determine complex respuests that influence in the growth, development and productivity of the crops. The conditions of drought and salinity in the soils are the greater causes of stress in the crops and cause lost economic in the world agriculture. The drought as the salinity are osmotic stress

Loyla Rodríguez-Pérez

214

Physicochemical and degradative properties of in-planta re-structured potato starch  

Microsoft Academic Search

Starch re-structured directly in potato tubers by antisense suppression of starch branching enzyme (SBE), granule bound starch synthase (GBSS) or glucan water dikinase (GWD) genes was studied with the aim at disclosing the effects on resulting physico-chemical and enzyme degradative properties. The starches were selected to provide a combined system with specific and extensive alterations in amylose and covalently esterified

Hetti Arachchige Mangalika Wickramasinghe; Andreas Blennow; Takahiro Noda

2009-01-01

215

Floral benzenoid carboxyl methyltransferases: From in vitro to in planta function  

Microsoft Academic Search

Benzenoid carboxyl methyltransferases synthesize methyl esters (e.g., methyl benzoate and methyl salicylate), which are constituents of aromas and scents of many plant species and play important roles in plant communication with the surrounding environment. Within the past five years, eleven such carboxyl methyltransferases were isolated and most of them were comprehensively investigated at the biochemical, molecular and structural level. Two

Uta Effmert; Sandra Saschenbrecker; Jeannine Ross; Florence Negre; Chris M. Fraser; Joseph P. Noel; Natalia Dudareva; Birgit Piechulla

2005-01-01

216

Floral Benzenoid Carboxyl Methyltransferases: From in Vitro to in Planta Function  

Microsoft Academic Search

Benzenoid carboxyl methyltransferases synthesize methyl esters (e.g., methyl benzoate and methyl salicylate), which are constituents of aromas and scents of many plant species and play important roles in plant communication with the surrounding environment. Within the past five years, eleven such carboxyl methyltransferases were isolated and most of them were comprehensively investigated at the biochemical, molecular and structural level. Two

Uta Effmert; Sandra Saschenbrecker; Jeannine Ross; Florence Negre; Chris M. Fraser; Joseph P. Noel; Natalia Dudareva; Birgit Piechulla

2005-01-01

217

Evaluation of 12 ?-lactam antibiotics for Agrobacterium -mediated transformation through in planta antibacterial activities and phytotoxicities  

Microsoft Academic Search

The antibacterial activities of 12 ß-lactam antibiotics against Agrobacterium tumefaciens strains LBA4404 and EHA101 living in tobacco (Nicotiana tabacum L.) leaf tissues, and their phytotoxicities to tobacco leaf tissues were evaluated. All ß-lactams at minimum bactericidal concentration (MBC) or higher showed weak bactericidal activities against agrobacteria persisting in tobacco leaf tissues. The ß-lactams evaluated were classified into two major groups

Yoichi Ogawa; Masahiro Mii

2005-01-01

218

Subcellular Localization of Interacting Proteins by Bimolecular Fluorescence Complementation in Planta  

E-print Network

as internal transformation controls and markers of subcellular compartments. We demonstrate the utility-terminal YFP; cYFP, C-terminal YFP; GFP, green fluorescent protein; ECFP, enhanced cyan variant of GFP; EGFP, enhanced GFP; MCS, multi-cloning site; MP, movement protein; pSATN, modular satellite plasmids; Ca

Citovsky, Vitaly

219

SCIENTIFIC NOTE Plantas Hospedantes de Steneotarsonemus furcatus De Leon (Acari: Tarsonemidae) en Cuba  

Microsoft Academic Search

Steneotarsonemus furcatus De Leon is a well-known phytophagous tarsonemid mite commonly found on coconut. Little is known about its host range. This note brings a list of plants from which the mite was collected in Cuba. Brachiaria plantaginea (L.) Hitch, Digitaria decumbens Stewt., Digitaria sanguinalis (L.) Scop, Echinochloa colonum (L.) Link., Echinochloa crusgalli (L.), Eleusine indica (L.) Gaertn., Panicum fasciculatum

PEDRO DE LA TORRE; LÉRIDA ALMAGUEL; ELEAZAR BOTTA; E IDALIA CÁCERES

220

Plantas visitadas por abelhas africanizadas em duas localidades do estado de São Paulo  

Microsoft Academic Search

The knowledge of plants from a given region, as well as the blooming period and the pollen characteristics, help for the determination of the plant species which contribute for the honey composition. Plants visited by honey bees were listed during the period 1994 to 1997. The survey was carried out weekly, at different times and within a 300 m radius

Luís Carlos Marchini; Augusta Carolina de Camargo Carmell Moreti; Erica Weinstein Teixeira; Etelvina Conceição Almeida da Silva; Ricardo Ribeiro Rodrigues; Vinicius Castro Souza

2001-01-01

221

Gene Expression Biomarkers Provide Sensitive Indicators of in Planta Nitrogen Status in Maize[W][OA  

PubMed Central

Over the last several decades, increased agricultural production has been driven by improved agronomic practices and a dramatic increase in the use of nitrogen-containing fertilizers to maximize the yield potential of crops. To reduce input costs and to minimize the potential environmental impacts of nitrogen fertilizer that has been used to optimize yield, an increased understanding of the molecular responses to nitrogen under field conditions is critical for our ability to further improve agricultural sustainability. Using maize (Zea mays) as a model, we have characterized the transcriptional response of plants grown under limiting and sufficient nitrogen conditions and during the recovery of nitrogen-starved plants. We show that a large percentage (approximately 7%) of the maize transcriptome is nitrogen responsive, similar to previous observations in other plant species. Furthermore, we have used statistical approaches to identify a small set of genes whose expression profiles can quantitatively assess the response of plants to varying nitrogen conditions. Using a composite gene expression scoring system, this single set of biomarker genes can accurately assess nitrogen responses independently of genotype, developmental stage, tissue type, or environment, including in plants grown under controlled environments or in the field. Importantly, the biomarker composite expression response is much more rapid and quantitative than phenotypic observations. Consequently, we have successfully used these biomarkers to monitor nitrogen status in real-time assays of field-grown maize plants under typical production conditions. Our results suggest that biomarkers have the potential to be used as agronomic tools to monitor and optimize nitrogen fertilizer usage to help achieve maximal crop yields. PMID:21980173

Yang, Xiaofeng S.; Wu, Jingrui; Ziegler, Todd E.; Yang, Xiao; Zayed, Adel; Rajani, M.S.; Zhou, Dafeng; Basra, Amarjit S.; Schachtman, Daniel P.; Peng, Mingsheng; Armstrong, Charles L.; Caldo, Rico A.; Morrell, James A.; Lacy, Michelle; Staub, Jeffrey M.

2011-01-01

222

Partant de la formule03BD=d03B5 dx=(03B1+03B203B5)03B5, ou de cette autre identique 2013dx =d03B5(03B1+03B203B5)03B5, et intgrant entre les limites Ej et 5.,,  

E-print Network

20 Partant de la formule03BD=d03B5 dx=(03B1+03B203B5)03B5, ou de cette autre identique 2013dx =d03B5(03B1+03B203B5)03B5, et intégrant entre les limites Ej et 5.,, on trouve, pour le temps total X concordance remarquable a paru autoriser une applica- tion de la formule générale à l'étude de l'action de la

Boyer, Edmond

223

Conservacin Vegetal, 1015 INTRODUCCIN  

E-print Network

Conservación Vegetal, 10·15 INTRODUCCI�N Las interacciones mutualistas entre plantas y animales, y animales mutualistas desde hace años (uno de los más conocidos es el caso del dodo en la Isla Mauricio

Traveset, Anna

224

Revista Chilena de Historia Natural 75: 79-97, 2002  

E-print Network

animales, princi- palmente los de polinización y de dispersión de semillas, son muy frecuentes en la revisión sobre (1) los grupos animales que intervienen en estos mutualismos y su importancia relativa, (2 Andes. También comparamos los mutualismos entre plantas y animales del BTSA con los presentes en otros

Vazquez, Diego

225

A la Carte Entres and Sandwiches Chicken Dijon 55  

E-print Network

A la Carte Entr�es and Sandwiches Entr�es Chicken Dijon 55 Beef Lasagna 50 Spinach Lasagna 50 Chili 34 1/4 Sheet Cake 22 Beverages Soft Drinks (six pack) 6.50 Coke Sprite Diet Coke Dasani Water Juices

226

Fatores de estresse ocupacional e coping entre policiais civis  

Microsoft Academic Search

Resumo Este estudo foi desenvolvido com os objetivos de identificar fatores de estresse ocupacional e de verificar as estratégias de enfrentamento utilizadas pelos policiais civis. Participaram voluntariamente 40 policiais civis de uma delegacia regional e utilizou-se um roteiro de entrevista semi-estruturado com quatro perguntas. Após análise de conteúdo foram obtidas 222 respostas sobre os estressores ocupacionais, que foram classificados em

Santos Menezes; Dela Coleta; Marilia Ferreira

227

Las personas con diabetes deben lograr un balance entre los  

E-print Network

en un lado del plato y los alimentos bajos en carbohidratos al otro lado. Karen Halderson, MPH, RD bajos en carbohidratos, manteniendo cada uno en su propio lado del plato o de la mesa. Comer vegetales en diferentes lados de su plato y ver si su plato está "balanceado". Sin embargo, muchas veces

228

Gnomique, Biotechnologie, Bioinformatique Travailler l'interface entre Biologie, Informatique  

E-print Network

) : 1ère Session : Vendredi 1 Juillet 2011 Aucun dossier renvoyé par courrier électronique ne sera pris l'inscription en M2, admissibilité (liste d'attente). Les candidats prévenus par courrier électronique et par courrier postal seront tenu de confirmer leur intention d'integrer le master par courrier

Heurteaux, Yanick

229

Gnomique, Biotechnologie, Bioinformatique A l'interface entre Biologie, Informatique  

E-print Network

de la poste faisant foi) : 1ère Session : Vendredi 29 juin 2012 Aucun dossier renvoyé par courrier l'inscription en M2, admissibilité (liste d'attente). Les candidats prévenus par courrier électronique et par courrier postal seront tenu de confirmer leur intention d'intégrer le master par courrier

Sart, Remi

230

DINNER MENU 5 (Limit 1 Hot or 1 Cold Entre)  

E-print Network

& Vinegar/Low fat Italian/ Low fat French) DESSERTS: Angel Food Cake Diet Gelatin Diet Pudding: Chocolate Caesar Salad (Oil & Vinegar/Lowfat Italian/Lowfat French) Cottage Cheese Fruit Plate Organic Southwest: Lettuce, Tomato, Onion Baked Potato Chips ACCOMPANIMENTS: (Limit 1 Starch 1 Veg) Green Beans Broccoli

Oliver, Douglas L.

231

Religiosidade, juventude e sexualidade: entre a autonomia e a rigidez  

Microsoft Academic Search

Current article describes how religious young people and the religious authorities of their communities understand sexuality. Knowledge is based on personal experiences as well as members of a religious community. Analysis investigates the manner public policies devoted to the sexual health of young people take religiosity into account within the context of a lay state and within the context of

Cristiane Gonçalves da Silva; Alessandro Oliveira Santos; Daniele Carli Licciardi; Vera Paiva

2008-01-01

232

Professionnels du tourisme Comits d'entrePrise  

E-print Network

, les zones arides et d�sertiques et la nouvelle Cal�donie avec sa flore end�mique dont celle du maquis ou avec r�servation pour des visites guid�es). JARDIN DES PLANTES oRANGS-ouTANS, pandas roux, panth

233

Comparaciones entre la política educativa en Asia y América Latina  

Microsoft Academic Search

Los países del Este de Asia han invertido más y mejor en la educación que los países de América Latina. Esto ha llevado a mayores tasas de crecimiento y una mejor distribución del ingreso, ya que la distribución de la educación es un determinante primordial de la distribución de los ingresos de trabajo. Parte del éxito de los países del

Urrutia Miguel

1998-01-01

234

ARelação entre Mensalidade Escolar eProficiência no ENEM  

Microsoft Academic Search

This paper utilizes for the first time in the literature the micro data from ENEM to examine the school effect on the proficiency of high school students of the 1000 best schools in their State of São Paulo. The aim of the paper is to examine if the control for the family background significantly alters the official school rankings. The

Andréa Zaitune Curi; Ernesto Martins Faria; Naércio Aquino Menezes-Filho

2011-01-01

235

Bioclimatologie Relations entre l'tat hydrique du sol,  

E-print Network

potential and other indicators of the plant water status in maize. Indicators of soil water status (water potential in the root zone and soil water reserve) have been related to several indicators of the plant water status of maize after silking. The latter were the predawn leaf water potential, the daytime leaf

Paris-Sud XI, Université de

236

1426 -XIV Encuentro de Latinoamericanistas Espaoles DILOGOS ENTRE LA HISTORIA  

E-print Network

multiplicación de investigaciones, la aparición de revistas y la organización de redes de pesquisadores sobre el Historia Argentina. Esta ponencia intenta #12;Congreso Internacional 1810-2010: 200 años de Iberoamérica de constituir un mercado auténticamente nacional dibujaban un esquema radial con epicentro en la

Paris-Sud XI, Université de

237

O TDAH: entre as funções, disfunções e otimização da atenção  

Microsoft Academic Search

The expansion of the diagnostic category of Attentio n Deficit Hyperactivity Disorder (ADHD) and its controversies is investigated. Since the 1980s, the ADHD diagnosis has been interpreted as a neuropsychiatric dysfunction that appears in childhood and persists into adultho od. ADHD diagnosis is described by international medical authorities as a public health issue. Although ADHD medical and biological legitimacy has

Luciana Vieira Caliman

2008-01-01

238

La PESD en 2005 Entre pitinement institutionnel et avances oprationnelles  

E-print Network

'endettement public, ce qui accroît d'autant la sensibilité de la question des budgets de défense. L'élection d'Angela Merkel au poste de Chancelière allemande, connue pour ses positions assez fermement atlantistes, peut

Paris-Sud XI, Université de

239

APROXIMA?ˆO ENTRE MONET E ALBERTO CAEIRO (FERNANDO PESSOA)  

Microsoft Academic Search

This paper presents the results of a comparison between a visual work of art and a literary piece: the impressionist painting entitled ìField of poppies in a lowland near Giverneyî, painted by Claude Monet in 1885, and the poem ìSummerî, by Alberto Caeiro, one of the heteronyms of the Portuguese poet Fernando Pessoa, drawing on semiotic theory by Peirce (cf.

Maria Zanetti Thomaz

240

A Relao entre Teoria, Postulados, Hipteses e a Natureza da  

E-print Network

Koh et al. (2004) 17 O Ciclo de Pesquisa #12;The Ontogeny of Plant Defense and Herbivory herbivores often changes dramatically as plants develop. Hypotheses based on allocation theory and herbivore studies reporting ontogenetic patterns in plant defense traits and herbivory. Patterns varied depending

Paiva, Paulo Cesar de

241

Democracia Liberal: uma novidade já desbotada entre jovens  

Microsoft Academic Search

Palavras-chaves: Brasília, Juventude, Participação Política, alistamento eleitoral Abstract: This article intends to analize the relationship between the city of Brasílias youth and the institutional politics. We show what is behind the rejection to professional politicians and to the institutions they control. Instead of stereotipyze the critical behavior of the youth, we first analyze the context where this refusal takes place.

Renata Florentino

2008-01-01

242

MIGRER LYON ENTRE LES ANNES 1960 ET 2000.  

E-print Network

étudiant-e-s du Master d'histoire moderne et contemporaine de l'Université Lyon 2, dans le cadre d racisme; les projets de retour au pays comme les manifestations de solitude. Ce volume est organisé en

Boyer, Edmond

243

La controverse de 1874 entre Camille Jordan et Leopold Kronecker.  

E-print Network

. Laboratoire de Mathématiques Lens (LML, EA2462). Fédération de Recherche Mathématique du Nord-Pas-de-Calais (CNRS, FR 2956). Université d'Artois (IUFM du Nord Pas de Calais). Faculté des Sciences Jean Perrin, rue

Paris-Sud XI, Université de

244

Actividade física habitual em crianças. Diferenças entre rapazes e raparigas  

Microsoft Academic Search

Daily Physical Activity in Children. Gender Differences. The purpose of this study was to identify the physical activity pattern of boys and girls during 4 days. The sample comprises 14 girls and 11 boys of 9,5±0,6 years of age. Physical activity was assessed with Computer Science and Applications (CSA - 7164) activity monitor, during 4 days - two week-days (Monday

V. P. Lopes; A. M. Monteiro; T. Barbosa; P. M. Magalhães

245

Christophe BROCHIER ORACY NOGUEIRA ENTRE SO PAULO ET CHICAGO,  

E-print Network

on examine la postérité de l'auteur dans le cadre des changements de perspectives au sujet du racisme. Mots. The inquiries which he produced afterward are indeed particularly original. They combine a strong commitment the framework of the changes of perspectives on the subject of racism. Keywords : Brazil ; racial relations

Paris-Sud XI, Université de

246

Ambivalencia e incertidumbre en las relaciones entre ciencia y sociedad  

Microsoft Academic Search

Ambivalence and uncertainty in the relationships between science and society The science-society relationship has gone by several circumstances along the history. At the present, their relationship is marked by the ambivalence and the uncertainty that it generates diverse upsets into and among both spheres. The advance of the techno-sci- entific sphere and the difference and the threat perception that society

J. Rubén Blanco; Juan Manuel Iranzo Amatriaín

2000-01-01

247

Familles homoparentales : entre conformit et subversion Les familles homoparentales  

E-print Network

menacer l'ordre fondé sur le mo- dèle traditionnel « père, mère, en- fants ». L'adoption, les techniques sub- version de l'ordre social. Nous examinerons ces argu- ments et montrerons que les pa- rents gays publiées depuis le début des années 1970 sur les parents gays et les- biens et le développement de leurs

Paris-Sud XI, Université de

248

Amlioration des plantes Une comparaison entre des bls hybrides  

E-print Network

, table III). In other respects F1 are, on average, close to the high-parent for height (fig 1, table III), on a par with mid-parent for number of ears per m2, fertility of ear, and har- vest-index (fig 2, table III leurs parents : niveaux d'hétérosis et élaboration du rendement FX Oury J Koenig P Bérard, M Rousset

Paris-Sud XI, Université de

249

Lien entre le dferlement des ondes de Rossby en haute  

E-print Network

fréquences de déf. sont plus élevées à lag -3 qu'à lag +3 renforcement du régime par les déferlements d'ondes. #12;4b ­ Evolution du blocage Les fréquences de déf. C sont plus élevées à lag +3 qu'à lag -3

250

La premire rencontre entre la pdagogie Freinet et  

E-print Network

écoliers. AAdrien 1 (7-10) Adrien 2 (9-14) Adrien 3 (5) Albine 3 (6) Amanda 1 (11-15) Anaïs 1 (3-4) Antoine Anaïs De- fraine (CE2), M. Adrien Pecout (CM2), M. Julien Viot (CM1) contact : M. Pierre Eysseric, IUFM

Hindry, Marc - Institut de Mathématiques de Jussieu, Université Paris 7

251

Empirical relations to estimate underwater PAR attenuation in San Quintín Bay using Secchi depth and horizontal sighting range Relaciones empíricas para estimar la atenuación subacuática de PAR en Bahía San Quintín utilizando la profundidad de Secchi y la distancia horizontal de desaparición de objetos  

Microsoft Academic Search

Empirical relationships to estimate vertical attenuation coefficient of photosynthetically available radiation (KPAR) using Secchi disk, vertical black disk, and horizontal sighting ranges for San Quintín Bay, Baja California, were developed. Radiometric PAR profiles were used to calculate KPAR. Vertical (ZD) and horizontal (HS) sighting ranges were measured with white (Secchi depth or ZSD, HSW) and black (ZBD, HSB) targets. The

Martín A. Montes-Hugo; Saúl Álvarez-Borrego

252

Plantas con Flores: Claves para la Evolución de la Tierra y Para el Bienestar Humano  

NSDL National Science Digital Library

The issue-focused interview discusses how angiosperms, or flowering plants, are important because they hold clues to the evolutionary history of our planet, provide sources of food, medicine, and shelter to humans, and serve as food and habitat for many other organisms.

Pamela Soltis (University of Florida, Gainesville;)

2006-03-01

253

METODOLOGIA PARA ESTIMATIVA DO CRESCIMENTO DO FRUTO E DO VOLUME ABSOLUTO E RELATIVO DA PLANTA DO ALGODOEIRO1  

Microsoft Academic Search

The present paper had the objetive to imprive the knowledge for ecofisiological studies. With herbaceus cotton (Gossypium hirsutum L. r. latifolium Hutch.) taken into consideration a non destructive method to estimate the area and volume of the fruits that also had chlorophyll and take part actively is the photosyntesis as a modification in the method of Hozumi et al. (1955)

NOTAS CIENTÍFICAS; NAPOLEÃO ESBERARD DE MACÊDO; JOSÉ FIDELES FILHO

254

DISTRIBUCIÓN DE PLOMO EN SUELOS CONTAMINADOS EN EL ENTORNO DE UNA PLANTA DE RECICLAJE DE BATERÍAS ÁCIDAS  

Microsoft Academic Search

Total Pb, Cd, Cu, Ni and Zn concentrations and the distribution of lead in soils from a farmland near a battery recycling plant in Madrid (Spain) were investigated to establish a possible relationship with a recent episode of horses death that presented lead intoxication symptoms before dying. Total Pb and Cd levels presented a clear decrease with distance to the

Victoria CALA; Yukihiko KUNIMINE

255

G. Leubner-Metzger et al.: -1,3-Glucanase and tobacco seed germination Planta (1996) 199: 282-288  

E-print Network

: 282-288 Effects of gibberellins, darkness and osmotica on endosperm rupture and class I �-1 November 1995 Abstract. The "Havana 425" cultivar of Nicotiana tabacum L. is photodormant. Gibberellins (e ­ Germination ­ Gibberellins - �-1,3-Glucanase ­ Photodormancy -Tobacco Abbreviations: ABA= cis

Leubner, Gerhard

256

Development of a Fusarium graminearum Affymetrix GeneChip for profiling fungal gene expression in vitro and in planta  

Microsoft Academic Search

Recently the genome sequences of several filamentous fungi have become available, providing the opportunity for large-scale functional analysis including genome-wide expression analysis. We report the design and validation of the first Affymetrix GeneChip microarray based on the entire genome of a filamentous fungus, the ascomycetous plant pathogen Fusarium graminearum. To maximize the likelihood of representing all putative genes (?14,000) on

Ulrich Güldener; Kye-Yong Seong; Jayanand Boddu; Seungho Cho; Frances Trail; Jin-Rong Xu; Gerhard Adam; Hans-Werner Mewes; Gary J. Muehlbauer; H. Corby Kistler

2006-01-01

257

Phylogeny of Nuclear-Encoded Plastid-Targeted Proteins Supports an Early Divergence of Glaucophytes within Plantae  

E-print Network

-membrane-bound photo- synthetic organelle. The result of the endosymbiosis was the emergence of the first. 2007]), shared components of the plastid protein import system (McFadden and van Dooren 2004), common

Bhattacharya, Debashish

258

In planta imaging of ?9-tetrahydrocannabinolic acid in Cannabis sativa L. with hyperspectral coherent anti-Stokes Raman scattering microscopy  

NASA Astrophysics Data System (ADS)

Nature has developed many pathways to produce medicinal products of extraordinary potency and specificity with significantly higher efficiencies than current synthetic methods can achieve. Identification of these mechanisms and their precise locations within plants could substantially increase the yield of a number of natural pharmaceutics. We report label-free imaging of ?9-tetrahydrocannabinolic acid (THCa) in Cannabis sativa L. using coherent anti-Stokes Raman scattering microscopy. In line with previous observations we find high concentrations of THCa in pistillate flowering bodies and relatively low amounts within flowering bracts. Surprisingly, we find differences in the local morphologies of the THCa-containing bodies: organelles within bracts are large, diffuse, and spheroidal, whereas in pistillate flowers they are generally compact, dense, and have heterogeneous structures. We have also identified two distinct vibrational signatures associated with THCa, both in pure crystalline form and within Cannabis plants; at present the exact natures of these spectra remain an open question.

Garbacik, Erik T.; Korai, Roza P.; Frater, Eric H.; Korterik, Jeroen P.; Otto, Cees; Offerhaus, Herman L.

2013-04-01

259

The Arabidopsis cysteine-rich protein GASA4 promotes GA responses and exhibits redox activity in bacteria and in planta.  

PubMed

Although the gibberellin (GA) signaling pathway has been elucidated, very little is known about the steps linking first transcriptional activation to physiological responses. Among the few identified GA-induced genes are the plant-specific GAST1-like genes, which encode small proteins with a conserved cysteine-rich domain. The role of these proteins in plant development and GA responses is not yet clear. The Arabidopsis GAST1-like gene family consists of 14 members, GASA1-14. Here we show that over-expression of the GA-induced GASA4 gene in Arabidopsis promoted GA responses such as flowering and seed germination. Suppression of several GASA genes using synthetic microRNA (miR(GASA) ) also promoted seed germination. This was probably caused by suppression of GASA5, which acts as a repressor of GA responses. Previously, we proposed that GAST1-like proteins are involved in redox reactions via their cysteine-rich domain. The results of this study support this hypothesis, as over-expression of GASA4 suppressed ROS accumulation and the transgenic seeds were partially resistant to the NO donor sodium nitroprusside (SNP). Moreover, Escherichia coli expressing intact GASA4 or a truncated version containing only the cysteine-rich domain were resistant to SNP. Mutated GASA4, in which conserved cysteines were replaced by alanines, lost its redox activity and the ability to promote GA responses, suggesting that the two functions are linked. We propose that GA induces some GAST1-like genes and suppresses others to regulate its own responses. We also suggest that the encoded proteins regulate the redox status of specific components to promote or suppress these responses. PMID:21143681

Rubinovich, Lior; Weiss, David

2010-12-01

260

Planta (1995)196:683-690 P l a n t a (62)Springer-Verlag1995  

E-print Network

by externally supplied nitrate was moni- tored in roots of intact Picea glauca (Moench) Voss. seedlings over a 5 - Nitrate (induction of uptake) - Nitrate reductase - Nitrogen-13 - Picea Abbreviations and symbol: [NO3 ]cy

Kronzucker, Herbert J.

261

Más Conceptos Erróneos a Evitar en la Enseñanza sobre las Plantas  

NSDL National Science Digital Library

The resource is useful for teacher's professional development by alerting educators to many plant misconceptions in teaching literature. In the thought provoking, peer reviewed resource fifty misconceptions are identified. Some misconceptions are easier to identify because they are oversimplifications, overgeneralizations, or misidentifications. Others are more difficult to identify because they are obsolete concepts and terms or flawed research.

David Hershey (biology education consultant;)

2006-04-01

262

In planta production of the highly potent resveratrol analogue pterostilbene via stilbene synthase and O-methyltransferase co-expression  

SciTech Connect

Resveratrol and related stilbenes are thought to play important roles in defence responses in several plant species and have also generated considerable interest as nutraceuticals owing to their diverse health-promoting properties. Pterostilbene, a 3,5-dimethylether derivative of resveratrol, possesses properties similar to its parent compound and, additionally, exhibits significantly higher fungicidal activity in vitro and superior pharmacokinetic properties in vivo. Recombinant enzyme studies carried out using a previously characterized O-methyltransferase sequence from Sorghum bicolor (SbOMT3) demonstrated its ability to catalyse the A ring-specific 3,5-bis-O-methylation of resveratrol, yielding pterostilbene. A binary vector was constructed for the constitutive co-expression of SbOMT3 with a stilbene synthase sequence from peanut (AhSTS3) and used for the generation of stably transformed tobacco and Arabidopsis plants, resulting in the accumulation of pterostilbene in both species. A reduced floral pigmentation phenotype observed in multiple tobacco transformants was further investigated by reversed-phase HPLC analysis, revealing substantial decreases in both dihydroquercetin-derived flavonoids and phenylpropanoid-conjugated polyamines in pterostilbene-producing SbOMT3/AhSTS3 events. These results demonstrate the potential utility of this strategy for the generation of pterostilbene-producing crops and also underscore the need for the development of additional approaches for minimizing concomitant reductions in key phenylpropanoid-derived metabolites.

Rimando A. M.; Liu C.; Pan, Z.; Polashock, J. J.; Dayan, F. E., Mizuno, C. S.; Snook, M. E.; Baerson, S. R.

2012-04-01

263

In planta expression or delivery of potato aphid Macrosiphum euphorbiae effectors Me10 and Me23 enhances aphid fecundity.  

PubMed

The interactions between aphids and their host plants seem to be analogous to those of plant-microbial pathogens. Unlike microbial pathogen effectors, little is known about aphid effectors and their ability to interfere with host immunity. To date, only three functional aphid effectors have been reported. To identify potato aphid (Macrosiphum euphorbiae) effectors, we developed a salivary gland transcriptome using Illumina technology. We generated 85 million Illumina reads from salivary glands and assembled them into 646 contigs. Ab initio sequence analysis predicted secretion signal peptides in 24% of these sequences, suggesting that they might be secreted into the plant during aphid feeding. Eight of these candidate effectors with secretion signal peptides were functionally characterized using Agrobacterium tumefaciens-mediated transient overexpression in Nicotiana benthamiana. Two candidate effectors, Me10 and Me23, increased aphid fecundity, suggesting their ability to suppress N. benthamiana defenses. Five of these candidate effectors, including Me10 and Me23, were also analyzed in tomato by delivering them through the Pseudomonas syringae type three secretion system. In tomato, only Me10 increased aphid fecundity. This work identified two additional aphid effectors with ability to manipulate the host for their advantage. PMID:23194342

Atamian, Hagop S; Chaudhary, Ritu; Cin, Valeriano Dal; Bao, Ergude; Girke, Thomas; Kaloshian, Isgouhi

2013-01-01

264

In planta detection of Xanthomonas axonopodis pv. commiphorae using fyuA and rpoD genes.  

PubMed

Guggal is tapped for extraction of medicinally important oleo-gum-resin (guggul) by inoculating the stem bark with natural gum suspension containing pathogenic bacterium Xanthomonas axonopodis pv. commiphorae (Xac). The tree dies in the process. In absence of any specific medium for isolation of Xac, it is difficult to assess spread of the pathogen within the plant. A PCR based molecular detection technique usingfyuA and rpoD gene specific primers is described here. The primers amplified products only from Xac and not from host tissues or common saprophytes. The method was sensitive enough to produce positive signals for up to 4.4 bacterial cells or 2 pg target DNA per reaction mixture. However, PCR inhibitors present in plant tissues drastically reduced the limit of detection. A simple overnight incubation of surface sterilised plant tissues in nutrient medium was introduced to increase pathogen titre and to overcome this problem. This technique was successfully used to measure spread of Xac in plant tissues away from the site of inoculation. The pathogen showed preference for acropetal movement and did not spread to 7-8 cm below the site of inoculation till 15 days after inoculation. This suggests possibility to manage the disease through plant surgery. PMID:23926696

Samanta, Jatindra Nath; Mandal, Kunal

2013-06-01

265

ESTABLECIMIENTO DE LAS CONDICIONES ÓPTIMAS DE GERMINACIÓN DE EMBRIONES CIGÓTICOS DE PLANTAS DE CAFETO (Coffea arabica L.)  

Microsoft Academic Search

El café es uno de los productos agrícolas más importantes en el mercado internacional y uno de los cultivos tropicales perennes con mayor área cultivada en el mundo. Existen más de cien especies del género Coffea; pero desde el punto de vista comercial solamente Coffea arabica L y Coffea canephora Pierre son importantes. En Méxic o, el cafetal es uno

Unidad de Bioquímica; Centro de Investigación

266

ENERGÍA SOLAR Y AGRICULTURA EN CUBA. CONCEPCIÓN Y PRUEBAS DE UN SECADOR SOLAR DE PLANTAS MEDICINALES CON CUBIERTA DE POLIETILENO  

Microsoft Academic Search

En el presente trabajo se presenta la concepción, construcción, y pruebas de factibilidad de un secador solar de cubierta de polietileno introducido en una Unidad Básica Económica del MINAGRI , en la provincia de Santiago de Cuba, Cuba. El secador fue evaluado utilizando instrumentos y técnicas de precisión para medir radiación solar y temperaturas del aire, lo que permitió hacer

Ciro César Bergues Ricardo; Pedro Griñàn Villafañe; Jorge Luis Abdala R; Susana Fonseca Fonseca; Alonso Torres Ten

2011-01-01

267

Overexpression of the rice carotenoid cleavage dioxygenase 1 gene in Golden Rice endosperm suggests apocarotenoids as substrates in planta  

Microsoft Academic Search

Carotenoids are converted by carotenoid cleavage dioxygenases that catalyze oxidative cleavage reactions leading to apocarotenoids.\\u000a However, apocarotenoids can also be further truncated by some members of this enzyme family. The plant carotenoid cleavage\\u000a dioxygenase 1 (CCD1) subfamily is known to degrade both carotenoids and apocarotenoids in vitro, leading to different volatile\\u000a compounds. In this study, we investigated the impact of

Andrea Ilg; Qiuju Yu; Patrick Schaub; Peter Beyer; Salim Al-Babili

2010-01-01

268

In planta transformation of pigeon pea: a method to overcome recalcitrancy of the crop to regeneration in vitro.  

PubMed

Development of transgenics in pigeon pea remains dogged by poor plant regeneration in vitro from transformed tissues and low frequency transformation protocols. This article presents a non-tissue culture-based method of generating transgenic pigeon pea (Cajanus cajan (L.) Millisp.) plants using Agrobacterium-Ti plasmid-mediated transformation system. The protocol involves raising of whole plant transformants (T0 plants) directly from Agrobacterium-infected young seedlings. The plumular and intercotyledonary meristems of the seedling axes are targeted for transformation. The transformation conditions optimized were, pricking of the apical and intercotyledonary region of the seedling axes of two-day old germinating seedlings with a sewing needle, infection with Agrobacterium (LBA4404/pKIWI105 carrying uid A and npt II genes) in Winans' AB medium that was added with wounded tobacco leaf extract, co-cultivation in the same medium for 1h and transfer of seedlings to soilrite for further growth and hardening and subsequent transfer of seedlings to soil in pots in the greenhouse. Out of the 22-25 primary transformants that survived infection-hardening treatments from each of the three experiments, 15 plants on the average established on the soil under greenhouse conditions, showed slow growth initially, nevertheless grew as normal plants, and flowered and set seed eventually. Of the several seeds harvested from all the T0 plants, six hundred were sown to obtain progeny (T1) plants and 350 of these were randomly analysed to determine their transgenic nature. PCR was performed for both gus (uid A) and npt II genes. Forty eight of the 350 T1 plants amplified both transgenes. Southern blot analysis substantiated the integration and transmission of these genes. The protocol ensured generation of pigeon pea transgenic plants with considerable ease in a short time and is applicable across different genotypes/cultivars of the crop and offers immense potential as a supplemental or an alternative protocol for generating transgenic plants of difficult-to-regenerate pigeon pea. Further, the protocol offers the option of doing away with a selection step in the procedure and so facilitates transformation, which is free of marker genes. PMID:23572898

Sankara Rao, K; Sreevathsa, Rohini; Sharma, Pinakee D; Keshamma, E; Udaya Kumar, M

2008-10-01

269

Proteins with high turnover rate in barley leaves estimated by proteome analysis combined with in planta isotope labeling.  

PubMed

Protein turnover is a key component in cellular homeostasis; however, there is little quantitative information on degradation kinetics for individual plant proteins. We have used (15)N labeling of barley (Hordeum vulgare) plants and gas chromatography-mass spectrometry analysis of free amino acids and liquid chromatography-mass spectrometry analysis of proteins to track the enrichment of (15)N into the amino acid pools in barley leaves and then into tryptic peptides derived from newly synthesized proteins. Using information on the rate of growth of barley leaves combined with the rate of degradation of (14)N-labeled proteins, we calculate the turnover rates of 508 different proteins in barley and show that they vary by more than 100-fold. There was approximately a 9-h lag from label application until (15)N incorporation could be reliably quantified in extracted peptides. Using this information and assuming constant translation rates for proteins during the time course, we were able to quantify degradation rates for several proteins that exhibit half-lives on the order of hours. Our workflow, involving a stringent series of mass spectrometry filtering steps, demonstrates that (15)N labeling can be used for large-scale liquid chromatography-mass spectrometry studies of protein turnover in plants. We identify a series of abundant proteins in photosynthesis, photorespiration, and specific subunits of chlorophyll biosynthesis that turn over significantly more rapidly than the average protein involved in these processes. We also highlight a series of proteins that turn over as rapidly as the well-known D1 subunit of photosystem II. While these proteins need further verification for rapid degradation in vivo, they cluster in chlorophyll and thiamine biosynthesis. PMID:25082890

Nelson, Clark J; Alexova, Ralitza; Jacoby, Richard P; Millar, A Harvey

2014-09-01

270

Inhibitory effect of Xenorhabdus nematophila TB on plant pathogens Phytophthora capsici and Botrytis cinerea in vitro and in planta.  

PubMed

Entomopathogenic bacteria Xenorhabdus spp. produce secondary metabolites with potential antimicrobial activity for use in agricultural productions. This study evaluated the inhibitory effect of X. nematophila TB culture on plant pathogens Botrytis cinerea and Phytophthora capsici. The cell-free filtrate of TB culture showed strong inhibitory effects (>90%) on mycelial growth of both pathogens. The methanol-extracted bioactive compounds (methanol extract) of TB culture also had strong inhibitory effects on mycelial growth and spore germinations of both pathogens. The methanol extract (1000??g/mL) and cell-free filtrate both showed strong therapeutic and protective effects (>70%) on grey mold both in detached tomato fruits and plants, and leaf scorch in pepper plants. This study demonstrates X. nematophila TB produces antimicrobial metabolites of strong activity on plant pathogens, with great potential for controlling tomato grey mold and pepper leaf scorch and being used in integrated disease control to reduce chemical application. PMID:24599183

Fang, Xiangling; Zhang, Manrang; Tang, Qian; Wang, Yonghong; Zhang, Xing

2014-01-01

271

ACTIVIDAD ANTIMICROBIANA, CONSERVANTE Y OBTENCIÓN DE UN COLORANTE NATURAL A PARTIR DE PLANTAS DE LA REGION DE BOYACA  

Microsoft Academic Search

The extraction and preliminary characterization of the present secondary metabolic in crust Grapefruit (Citrus Maxima) and the determination of its biological activity forehead to the Penicillum fungi ssp, Rhizopus ssp and cinerea Botrytis, in conditions of Laboratory like possible conservant activity. Also an nourishing natural colorant from the metanólic extraction of present antocianinas in the was obtained mora de castilla

RAMIREZ GONZALEZ; ADRIANA NEIRA GONZALEZ; LADY JOHANA CORREA

2007-01-01

272

In planta sequential hydroxylation and glycosylation of a fungal phytotoxin: Avoiding cell death and overcoming the fungal invader  

PubMed Central

To facilitate plant colonization, some pathogenic fungi produce phytotoxic metabolites that damage tissues; plants may be resistant to a particular pathogen if they produce an enzyme(s) that catalyzes detoxification of this metabolite(s). Alternaria blackspot is one of the most damaging and significant fungal diseases of brassica crops, with no source of resistance known within the Brassica species. Destruxin B is the major phytotoxin produced by the blackspot-causing fungus, Alternaria brassicae (Berkley) Saccardo. We have established that a blackspot-resistant species (Sinapis alba) metabolized 14C-labeled destruxin B to a less toxic product substantially faster than any of the susceptible species. The first metabolite, hydroxydestruxin B (14C-labeled), was further biotransformed to the ?-d-glucosyl derivative at a slower rate. The structures of hydroxydestruxin B and ?-d-glucosyl hydroxydestruxin B were deduced from their spectroscopic data [NMR, high resolution (HR)-MS, Fourier transform infrared (FTIR)] and confirmed by total chemical synthesis. Although these hydroxylation and glucosylation reactions occurred in both resistant (S. alba) and susceptible (Brassica napus, Brassica juncea, and Brassica rapa) species, hydroxylation was the rate limiting step in the susceptible species, whereas glucosylation was the rate limiting step in the resistant species. Remarkably, it was observed that the hydroxydestruxin B induced the biosynthesis of phytoalexins in blackspot-resistant species but not in susceptible species. This appears to be a unique example of phytotoxin detoxification and simultaneous phytoalexin elicitation by the detoxification product. Our studies suggest that S. alba can overcome the fungal invader through detoxification of destruxin B coupled with production of phytoalexins. PMID:11149945

Pedras, M. S. C.; Zaharia, I. L.; Gai, Y.; Zhou, Y.; Ward, D. E.

2001-01-01

273

Cdigos UNESCO: 241712 241714 2407 Frecuencia del curso: Anual BIOLOGA DE LA REPRODUCCIN EN PLANTAS SUPERIORES. IMPLICACIONES AGRONMICAS Y  

E-print Network

meristemo: genes homeóticos. Mutantes de la inducción floral. Determinación del sexo. Flores hermafroditas, monoicas y dioicas. Mecanismos para evitar la endogamia. Mecanismos genéticos de determinación del sexo. II

274

A report on a comprehensive series of experiments, both in vitro and in planta, to develop treatments for Phytophthora  

E-print Network

in the U.S. since Dutch Elm Disease. Although it was first observed around the San Francisco Bay Area the cambium of main stems, while on a wide range of other hosts it simply causes leaf spots , leaf blight

California at Berkeley, University of

275

Mutations in the Arabidopsis peroxisomal ABC transporter COMATOSE allow differentiation between multiple functions in planta: insights from an allelic series.  

PubMed

COMATOSE (CTS), the Arabidopsis homologue of human Adrenoleukodystrophy protein (ALDP), is required for import of substrates for peroxisomal beta-oxidation. A new allelic series and a homology model based on the bacterial ABC transporter, Sav1866, provide novel insights into structure-function relations of ABC subfamily D proteins. In contrast to ALDP, where the majority of mutations result in protein absence from the peroxisomal membrane, all CTS mutants produced stable protein. Mutation of conserved residues in the Walker A and B motifs in CTS nucleotide-binding domain (NBD) 1 resulted in a null phenotype but had little effect in NBD2, indicating that the NBDs are functionally distinct in vivo. Two alleles containing mutations in NBD1 outside the Walker motifs (E617K and C631Y) exhibited resistance to auxin precursors 2,4-dichlorophenoxybutyric acid (2,4-DB) and indole butyric acid (IBA) but were wild type in all other tests. The homology model predicted that the transmission interfaces are domain-swapped in CTS, and the differential effects of mutations in the conserved "EAA motif" of coupling helix 2 supported this prediction, consistent with distinct roles for each NBD. Our findings demonstrate that CTS functions can be separated by mutagenesis and the structural model provides a framework for interpretation of phenotypic data. PMID:19019987

Dietrich, Daniela; Schmuths, Heike; De Marcos Lousa, Carine; Baldwin, Jocelyn M; Baldwin, Stephen A; Baker, Alison; Theodoulou, Frederica L; Holdsworth, Michael J

2009-01-01

276

SÍNTESIS Y CARACTERIZACIÓN DE MATERIALES ZEOLÍTICOS A PARTIR DE EXTRACTOS ETANÓLICOS DEL TALLO DE LA PLANTA EQUISETUM GIGANTEUM  

Microsoft Academic Search

Zeolite-type microporous materials have been synthesized using structure directing agents (SDA) present in the ethanolic extracts of the stem as well as the stem itself of the plant Equisetum giganteum. Materials crystallized in the interstices of the stem of the plant were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Si\\/Al ratio of the synthesized solids was determined

F. J. López; S. Márquez; O. González; A. Mora; J. G. Lanza

277

Remote sensing of gene expression in Planta: transgenic plants as monitors of exogenous stress perception in extraterrestrial environments  

NASA Technical Reports Server (NTRS)

Transgenic arabidopsis plants containing the alcohol dehydrogenase (Adh) gene promoter fused to the green fluorescent protein (GFP) reporter gene were developed as biological sensors for monitoring physiological responses to unique environments. Plants were monitored in vivo during exposure to hypoxia, high salt, cold, and abcissic acid in experiments designed to characterize the utility and responses of the Adh/GFP biosensors. Plants in the presence of environmental stimuli that induced the Adh promoter responded by expressing GFP, which in turn generated a detectable fluorescent signal. The GFP signal degraded when the inducing stimulus was removed. Digital imaging of the Adh/GFP plants exposed to each of the exogenous stresses demonstrated that the stress-induced gene expression could be followed in real time. The experimental results established the feasibility of using a digital monitoring system for collecting gene expression data in real time from Transgenic Arabidopsis Gene Expression System (TAGES) biosensor plants during space exploration experiments.

Manak, Michael S.; Paul, Anna-Lisa; Sehnke, Paul C.; Ferl, Robert J.

2002-01-01

278

A visual identification key utilizing both gestalt and analytic approaches to identification of Carices present in North America (Plantae, Cyperaceae)  

PubMed Central

Abstract Images are a critical part of the identification process because they enable direct, immediate and relatively unmediated comparisons between a specimen being identified and one or more reference specimens. The Carices Interactive Visual Identification Key (CIVIK) is a novel tool for identification of North American Carex species, the largest vascular plant genus in North America, and two less numerous closely-related genera, Cymophyllus and Kobresia. CIVIK incorporates 1288 high-resolution tiled image sets that allow users to zoom in to view minute structures that are crucial at times for identification in these genera. Morphological data are derived from the earlier Carex Interactive Identification Key (CIIK) which in turn used data from the Flora of North America treatments. In this new iteration, images can be viewed in a grid or histogram format, allowing multiple representations of data. In both formats the images are fully zoomable. PMID:24723777

2013-01-01

279

A secreted lipolytic enzyme from Xanthomonas campestris pv. vesicatoria is expressed in planta and contributes to its virulence.  

PubMed

A recombinase-based in vivo expression technology (RIVET) approach with Xanthomonas campestris pv. vesicatoria (Xcv) revealed that lipA, annotated as putative secreted lipase, is expressed during the interaction between this pathogen and tomato. Here, the tnpR and uidA reporter genes were used to show that lipA is strongly induced in XVM2 minimal medium and during the early stages of tomato infection by Xcv. A mutant strain impaired in lipA was generated by insertional mutagenesis. This mutant grew in a similar manner to the wild-type in rich medium, but its growth was significantly compromised in a medium containing olive oil as a single carbon source. The lipolytic activity of the extracellular fraction of the lipA mutant was reduced significantly relative to that of the wild-type strain, thus confirming that lipA indeed encodes a functional secreted enzyme with lipolytic activity. A plasmid carrying a wild-type copy of lipA complemented the lipA mutant for extracellular lipolytic activity. Dip inoculation experiments with tomato lines Hawaii 7998 (H7998) and Micro Tom showed that the lipA mutant grew to a lesser extent than the wild-type in tomato leaves. Following leaf syringe infiltrations, the mutant strain induced disease symptoms that were less severe than those induced by the wild-type strain, supporting a significant role of lipA in the pathogenicity of Xcv. PMID:22176521

Tamir-Ariel, Dafna; Rosenberg, Tally; Navon, Naama; Burdman, Saul

2012-08-01

280

Inhibitory effect of Xenorhabdus nematophila TB on plant pathogens Phytophthora capsici and Botrytis cinerea in vitro and in planta  

PubMed Central

Entomopathogenic bacteria Xenorhabdus spp. produce secondary metabolites with potential antimicrobial activity for use in agricultural productions. This study evaluated the inhibitory effect of X. nematophila TB culture on plant pathogens Botrytis cinerea and Phytophthora capsici. The cell-free filtrate of TB culture showed strong inhibitory effects (>90%) on mycelial growth of both pathogens. The methanol-extracted bioactive compounds (methanol extract) of TB culture also had strong inhibitory effects on mycelial growth and spore germinations of both pathogens. The methanol extract (1000??g/mL) and cell-free filtrate both showed strong therapeutic and protective effects (>70%) on grey mold both in detached tomato fruits and plants, and leaf scorch in pepper plants. This study demonstrates X. nematophila TB produces antimicrobial metabolites of strong activity on plant pathogens, with great potential for controlling tomato grey mold and pepper leaf scorch and being used in integrated disease control to reduce chemical application. PMID:24599183

Fang, Xiangling; Zhang, Manrang; Tang, Qian; Wang, Yonghong; Zhang, Xing

2014-01-01

281

A rapid infection assay for Armillaria and real-time PCR quantitation of the fungal biomass in planta.  

PubMed

Slow and unreliable infection in the greenhouse has been a barrier to research on Armillaria root disease. The existing infection assay takes 7-18 months for detectable infection, during which time the inoculum often dies, resulting in unequal challenge among plants. Because symptom expression and mortality are rare, presence or absence of infection, determined by culturing, is the only datum derived from the existing infection assay. This limits both routine comparisons of strain virulence and complex investigations of pathogenesis, neither of which have been done for Armillaria mellea. We tested a new infection assay, in which grape rootstocks growing in tissue culture medium are inoculated, and compared to rootstocks previously characterized from the existing infection assay as tolerant (Freedom) or susceptible (3309C). Culture media of 25 plants per rootstock was inoculated and five plants per rootstock were harvested 0, 2, 4, 6, and 8 weeks postinoculation; the experiment was completed twice. Confocal microscopy and quantitative PCR (Q-PCR) were used to quantify infection. Roots were treated with WGA-AlexaFluor488, hyphae and roots were scanned on green and red channels on a confocal microscope, and percent root colonization was quantified. A fungal gene (EF1?) was determined to have a single copy in A. mellea, and both EF1? and a single-copy grape gene (UFGT) were amplified by Q-PCR; fungal DNA: plant DNA served as a measure of fungal biomass. Armillaria was detected by culture, microscopy, and Q-PCR starting 2 weeks postinoculation from all inoculated plants, demonstrating that the new infection assay is rapid and plants do not escape infection. Our findings of higher percent root colonization (as measured by microscopy) of 3309C than Freedom at all harvests (P<0.0001), consistently higher fungal biomass (as measured by Q-PCR) of 3309 than Freedom, and a significant positive correlation between percent root colonization and fungal biomass (P=0.01) suggests that the quantitative methods of our new assay give similar results to the qualitative method of the existing infection assay. PMID:20965067

Baumgartner, Kendra; Bhat, Ravi; Fujiyoshi, Phillip

2010-01-01

282

Courtship behavior of different wild strains of Ceratitis Capitata (Diptera: Tephritidae)  

SciTech Connect

This study documents differences in the courtship behavior of wild strains of Ceratitis capitata (Wiedemann) from Madeira (Portugal), Hawaii (U.S.A.), Costa Rica, and Patagonia (Argentina). Some traits showed large variations and others substantial overlaps. The angle at which the male faced toward the female at the moment of transition from continuous wing vibration and intermittent buzzing changed very little during the course of courtship in all strains, but males from Madeira tended to face more directly toward the female than other males. Females tended to look more, and more directly, toward the males as courtship progressed in all strains. The distance between male and female tended to decrease as courtship proceeded in all strains, but the distances at which males initiated continuous vibration, intermittent buzzing, and jumped onto the female were relatively less variable between strains, except for the strain from Costa Rica. Flies of Madeira courted for longer and the male moved his head and buzzed his wings longer than the other strains. (author) [Spanish] Este estudio documenta diferencias en el comportamiento de cortejo de cepas silvestres de Ceratitis capitata (Wied.) provenientes de Madeira (Portugal), Hawaii (Estados Unidos de Norte America), Costa Rica y Patagonia (Argentina). Algunas caracteristicas mostraron grandes variaciones y traslape substancial. Los angulos a los cuales los machos miraron hacia las hembras cambiaron muy poco en el momento de la transicion de la vibracion continua al zumbido intermitente durante el curso del cortejo en todo las cepas, pero los machos de Madeira tendieron a enfrentar mas directamente a la hembra que otros machos. Los angulos de las hembras disminuyeron claramente durante el cortejo en todas las cepas. La distancia entre el macho y la hembra tendio a disminuir conforme el cortejo continuaba en todas las cepas, pero las distancias a las cuales los machos iniciaron la vibracion continua, el zumbido intermitente, y el salto sobre la hembra eran relativamente menos variables entre cepas excepto la cepa de Costa Rica. Moscas de Madeira cortejaron mas tiempo y el macho moviosu cabeza y zumbaba sus alas mas prolongadamente que las otras cepas. (author)

Briceno, D. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria (Costa Rica); Eberhard, W. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria and Smithsonian Tropical Research Institute (Costa Rica); Vilardi, J. [Dpto. de Ciencias Biologicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina); Cayol, J.-P. [Technical Cooperation Division, IAEA, Wagramerstrasse 5, P.O. Box 100 A-1400, Vienna (Austria); Shelly, T. [A. C. , D. , E. USDA/APHIS/CPHST, 41-650 Ahiki St. Waimanalo, HI 96795 (United States)

2007-03-15

283

Seed development and maturation in early spring-flowering Galanthus nivalis and Narcissus pseudonarcissus continues post-shedding with little evidence of maturation in planta  

PubMed Central

Background and Aims Seeds of the moist temperate woodland species Galanthus nivalis and Narcissus pseudonarcissus, dispersed during spring or early summer, germinated poorly in laboratory tests. Seed development and maturation were studied to better understand the progression from developmental to germinable mode in order to improve seed collection and germination practices in these and similar species. Methods Phenology, seed mass, moisture content and ability to germinate and tolerate desiccation were monitored during seed development until shedding. Embryo elongation within seeds was investigated during seed development and under several temperature regimes after shedding. Key Results Seeds were shed at high moisture content (>59 %) with little evidence that dry mass accumulation or embryo elongation were complete. Ability to germinate developed prior to the ability of some seeds to tolerate enforced desiccation. Germination was sporadic and slow. Embryo elongation occurred post-shedding in moist environments, most rapidly at 20 °C in G. nivalis and 15 °C in N. pseudonarcissus. The greatest germination also occurred in these regimes, 78 and 48 %, respectively, after 700 d. Conclusions Seeds of G. nivalis and N. pseudonarcissus were comparatively immature at shedding and substantial embryo elongation occurred post-shedding. Seeds showed limited desiccation tolerance at dispersal. PMID:23478943

Newton, Rosemary J.; Hay, Fiona R.; Ellis, Richard H.

2013-01-01

284

LOS LABORATORIOS DE ANÁLISIS DE SUELOS Y FOLIARES EN COSTA RICA: INFORME DEL COMITÉ DE LABORATORIOS DE ANÁLISIS DE SUELOS, PLANTAS Y AGUAS1  

Microsoft Academic Search

Soil and foliar analysis laboratories in Costa Rica: a report of the Committee for Laboratories of Analysis of Soils, Plants and Waters. The characteristics and methodologies of each laboratory are described, as well as the results of the National Exchange Programs, which have been implemented among all of them for the last 6 years, and which are denominated as PINAS

Marco Corrales; Floria Bertsch; José Antonio Bejarano

285

Investigations of the in Planta Expression of Active Cellobiohydrolase I: Cooperative Research and Development Final Report, CRADA Number CRD-07-219  

SciTech Connect

It was the purpose of this project to determine if cellulases produced in transgenic plants could effectively be utilized in the production of ethanol and other feedstock chemicals from lignocellulosic substrates.

Himmel, M.

2011-02-01

286

Time-Resolved Fluorescence Imaging Reveals Differential Interactions of N-Glycan Processing Enzymes across the Golgi Stack in Planta1[W][OA  

PubMed Central

N-Glycan processing is one of the most important cellular protein modifications in plants and as such is essential for plant development and defense mechanisms. The accuracy of Golgi-located processing steps is governed by the strict intra-Golgi localization of sequentially acting glycosidases and glycosyltransferases. Their differential distribution goes hand in hand with the compartmentalization of the Golgi stack into cis-, medial-, and trans-cisternae, which separate early from late processing steps. The mechanisms that direct differential enzyme concentration are still unknown, but the formation of multienzyme complexes is considered a feasible Golgi protein localization strategy. In this study, we used two-photon excitation-Förster resonance energy transfer-fluorescence lifetime imaging microscopy to determine the interaction of N-glycan processing enzymes with differential intra-Golgi locations. Following the coexpression of fluorescent protein-tagged amino-terminal Golgi-targeting sequences (cytoplasmic-transmembrane-stem [CTS] region) of enzyme pairs in leaves of tobacco (Nicotiana spp.), we observed that all tested cis- and medial-Golgi enzymes, namely Arabidopsis (Arabidopsis thaliana) Golgi ?-mannosidase I, Nicotiana tabacum ?1,2-N-acetylglucosaminyltransferase I, Arabidopsis Golgi ?-mannosidase II (GMII), and Arabidopsis ?1,2-xylosyltransferase, form homodimers and heterodimers, whereas among the late-acting enzymes Arabidopsis ?1,3-galactosyltransferase1 (GALT1), Arabidopsis ?1,4-fucosyltransferase, and Rattus norvegicus ?2,6-sialyltransferase (a nonplant Golgi marker), only GALT1 and medial-Golgi GMII were found to form a heterodimer. Furthermore, the efficiency of energy transfer indicating the formation of interactions decreased considerably in a cis-to-trans fashion. The comparative fluorescence lifetime imaging of several full-length cis- and medial-Golgi enzymes and their respective catalytic domain-deleted CTS clones further suggested that the formation of protein-protein interactions can occur through their amino-terminal CTS region. PMID:23400704

Schoberer, Jennifer; Liebminger, Eva; Botchway, Stanley W.; Strasser, Richard; Hawes, Chris

2013-01-01

287

In planta Protein Interactions of Three Alphacryptoviruses and Three Betacryptoviruses from White Clover, Red Clover and Dill by Bimolecular Fluorescence Complementation Analysis  

PubMed Central

Plant-infecting viruses of the genera Alpha- and Betacryptovirus within the family Partitiviridae cause no visible effects on their hosts and are only transmitted by cell division and through gametes. The bipartite dsRNA genome is encoding a RNA-dependent RNA polymerase (RdRp) and a coat protein (CP). Aside from sequence and structural analysis, the investigation of protein interactions is another step towards virus characterization. Therefore, ORFs of two type members White Clover Cryptic Virus 1 and 2 (WCCV-1 and WCCV-2), as well as the related viruses from Red Clover and Dill were introduced into a bimolecular fluorescence complementation assay. We showed CP-CP dimerization for all tested viruses with localization for alphacryptoviruses at the nuclear membrane and for betacryptoviruses close to cell walls within the cytoplasm. For CPs of WCCV-1 and WCCV-2, deletion mutants were created to determine internal interaction sites. Moreover, RdRp self-interaction was found for all viruses, whereas CP-RdRp interactions were only detectable for the alphacryptoviruses. An intra-genus test of CPs was successful in various virus combinations, whereas an inter-genus interaction of WCCV-1CP and WCCV-2CP was absent. This is the first report of in vivo protein interactions of members in the family Partitiviridae, indicating distinct features of the alpha- and betacryptoviruses. PMID:24113719

Lesker, Till; Maiss, Edgar

2013-01-01

288

In Planta Recognition of a Double-Stranded RNA Synthesis Protein Complex by a Potexviral RNA Silencing Suppressor[C][W][OPEN  

PubMed Central

RNA silencing plays an important antiviral role in plants and invertebrates. To counteract antiviral RNA silencing, most plant viruses have evolved viral suppressors of RNA silencing (VSRs). TRIPLE GENE BLOCK PROTEIN1 (TGBp1) of potexviruses is a well-characterized VSR, but the detailed mechanism by which it suppresses RNA silencing remains unclear. We demonstrate that transgenic expression of TGBp1 of plantago asiatica mosaic virus (PlAMV) induced developmental abnormalities in Arabidopsis thaliana similar to those observed in mutants of SUPPRESSOR OF GENE SILENCING3 (SGS3) and RNA-DEPENDENT RNA POLYMERASE6 (RDR6) required for the trans-acting small interfering RNA synthesis pathway. PlAMV-TGBp1 inhibits SGS3/RDR6-dependent double-stranded RNA synthesis in the trans-acting small interfering RNA pathway. TGBp1 interacts with SGS3 and RDR6 and coaggregates with SGS3/RDR6 bodies, which are normally dispersed in the cytoplasm. In addition, TGBp1 forms homooligomers, whose formation coincides with TGBp1 aggregation with SGS3/RDR6 bodies. These results reveal the detailed molecular function of TGBp1 as a VSR and shed new light on the SGS3/RDR6-dependent double-stranded RNA synthesis pathway as another general target of VSRs. PMID:24879427

Okano, Yukari; Senshu, Hiroko; Hashimoto, Masayoshi; Neriya, Yutaro; Netsu, Osamu; Minato, Nami; Yoshida, Tetsuya; Maejima, Kensaku; Oshima, Kenro; Komatsu, Ken; Yamaji, Yasuyuki; Namba, Shigetou

2014-01-01

289

Um novo conceito de monitoramento e comunicação ambiental: a rede européia para a avaliação da qualidade do ar usando plantas bioindicadoras (EuroBionet)  

Microsoft Academic Search

A new concept of environmental monitoring and communication: European network for the assessment of air quality by the use of bioindicator plants (EuroBionet)). In spite of all progress made in reducing the emission of air pollutants, the air quality is still unsatisfactory in many European cities. Bioindicator plants are of increasing importance for air quality control as their use makes

ANDREAS KLUMPP; WOLFGANG ANSEL; GABRIELE KLUMPP; ANETTE FOMIN

2001-01-01

290

A INSTITUIO ENTRE A FENOMENOLOGIA E PSICANLISE: AFETO, TEORIA E HISTORICIDADE  

E-print Network

contemporâneos da questão de gênero sem resvalar numa espécie de dogmatismo da lei simbólica. Palavras, enamora-se dela, converte-a em homem, e a envia a invadir os braços de umas, os corações de outros, numa ilícita do dramaturgo Marlowe é assimilada a uma heresia religiosa, e lhe custa a vida numa rixa. Os

291

La Communicacion entre los Centros de Investigacion en Educacion (Communication among Educational Research Centers).  

ERIC Educational Resources Information Center

In Latin America there is a lack of communication concerning educational research. This lack has been underlined in many regional meetings, but no action has been taken. Possible steps that would lead to improvement include circulation of research summaries, both for completed and current works, efforts by research centers to organize meetings,…

Schiefelbein, Ernesto

1972-01-01

292

Relations physiologiques entre le magnsum et l'os A. POINTILLART L. GUEGUEN  

E-print Network

and in calcium renewal. Excess magnesium enhances resorption and magnesium deficiency inhibits it. In all species hypomagnesemia. By decreas- ing the effects of PTH or vitamin D on calcium metabolism, Mg deficiency may increase is a surface ion of hydroxyapatite and is thus very labile, especially when the diet is deficient in magnesium

Boyer, Edmond

293

LEGALIDADE TRIBUTÁRIA, SEGURANÇA JURÍDICA, PÓS-POSITIVISMO E A DIFÍCIL RELAÇÃO ENTRE POLÍTICA E DIREITO1  

Microsoft Academic Search

O formalismo e o positivismo formam o lastro metodológico dos séculos XX e XXI. Esses modelos têm sofrido um forte desgaste metodológico e funcional. No âmbito tributário, entretanto, a forte identificação com pautas liberais (basicamente liberdade e propriedade) e o ódio aos impostos parecem obscurecer a crítica e a constatação da relativização dos pressupostos metodológicos daquelas escolas. A idéia de

JOSÉ MARIA ARRUDA DE ANDRADE

294

DENSIDADE DE SEMEADURA E ESPAÇAMENTO ENTRE LINHAS PARA ARROZ IRRIGADO NO SISTEMA PLANTIO DIRETO  

Microsoft Academic Search

The area of irrigated rice, in the no-till system, in the state of Rio Grande do Sul, Brazil, has been growing significantly along the last years. Presently, attains about 25 % planted with that cereal. This fact result from a satisfactory control of the weeds, mainly of the red rice; from the improvement of the cost\\/benefit relationship and from a

Rogério O. SOUSA

295

Entre Reproduction et Mobilisation: les Rapports de Genre EN Formation Continue EN France et AU Canada  

NASA Astrophysics Data System (ADS)

REPRODUCTION OR MOBILISATION? GENDER PROPORTIONS IN CONTINUING EDUCATION IN FRANCE AND CANADA - Initial education provisions for women have evolved greatly over the past 40 years. But what about their situation within adult education and training? This article, comparing Canada and France, shows that, while it is well known that more women than men participate in adult education, their greater presence in professional training courses is a new development. The analysis highlights certain particular findings, such as the growing demand for continuing education in Canada and the increased rate of participation by full-time employees in France. In both countries, a number of social factors continue to influence women's participation.

Fourner, Christine; Béret, Pierre; Doray, Pierre; Bélanger, Paul

2009-01-01

296

Associação entre o estado nutricional e a ingestão dietética em pacientes com fibrose cística  

Microsoft Academic Search

Objective: To determine the relationship between nutritional status and dietary intake in patients with cystic fibrosis. Methods: Cross-sectional study involving 85 cystic fibrosis patients between 6 and 18 years of age. Dietary intake was evaluated by the 3-day diet record (weighing the food consumed). The outcome measures were the following nutritional status indicators: weight\\/height (W\\/H%) percentage, body mass index (BMI)

Míriam Isabel Souza dos Santos Simon; Michele Drehmer; Sérgio Saldanha Menna-Barreto

2009-01-01

297

CORRELAÇÃO ENTRE DBO E DQO EM ESGOTOS DOMÉSTICOS PARA A REGIÃO DA GRANDE VITÓRIA - ES  

Microsoft Academic Search

It was developed statistical analysis of the results from the monitoring of raw and treated sewage from 06 (six) wastewater treatment systems, composed by wastewater stabilization ponds (WSP), located in the Great Vitoria Metropolitan Region, with domestic characteristics, during three years. It was concluded that although COD and BOD values varied very much, the ratio BOD\\/COD for raw sewage and

SARA RAMOS DA SILVA; ANTÔNIO SERGIO FERREIRA MENDONÇA

298

PARALELO ENTRE LA ACTIVIDAD Y LA SUSTANCIA ADICTIVA DESDE UN ENFOQUE SOCIAL Y SUS POSIBLES TRATAMIENTOS  

Microsoft Academic Search

Resumen El tema de las adicciones ha sido abordado históric amente por la literatura desde múltiples puntos de vista, sin embargo en esta investigación bibliográfica nuestra intenci ón es dimensionar las teorías sobre el origen de la s adicciones, considerando la complementariedad teórica para la q ue se presta el tema, permitiendo un paralelo con l as terapias psicoanalíticas y

Alan Herzberg; Viviana Messina; Diego Moreno; Natalia Olmedo; Romina Pitronello; Francisca Roman

299

Nature cristallo-physico-chimique de l'interface entre un semiconducteur et son oxyde propre.  

E-print Network

semiconducteurs des groupes A4(Si, Ge) et A3 B5(InP, InAs, InSb, GaN, GaP, GaAs, GaSb). L'interprétation des) and (111)), and A3 B5(InP, InAs, InSb; GaN, GaP, GaAs, GaSb with surfaces (111)-A3 and (111)-B5 des semiconducteurs monocristallins bien choisis (A4 : Si, Ge ; et A3 BI : InP, InAs, InSb, GaN, Ga

Paris-Sud XI, Université de

300

LA GUERRE ENTRE LE LOCAL ET LE GLOBAL : SOCIETES, ETATS, SYSTEMES  

E-print Network

local scholars � who were in charge of islamic boarding schools or pesantren and therefore had to manage zakat money and wakaf lands and buildings in a very bourgeois fashion). This occurred because

Boyer, Edmond

301

Conflit d'intérêt économique entre avocats et clients : la questions des honoraires  

Microsoft Academic Search

In the line of the agency question, the lawyer\\/client relationship cannot escape the risk of conflict of interests. This text broadly redefines the nature of this conflict, and links it to an important source of tension, i.e. fees. We study three types of billing : contingency fees, hourly, and alternative billing. Besides billing structures, we examine their influence on this

Alain Lempereur; Mathieu Scodellaro

2003-01-01

302

Relación entre el consumo de ansiolíticos y antidepresivos y la sintomatología psiquiátrica en ancianos  

Microsoft Academic Search

IntroductionMany studies have reported excessive consumption of psychotropic drugs in the elderly but none have related psychotropic drug use to psychiatric symptoms and sleep disorders in community-dwelling patients aged more than 65 years old in Spain.

Enrique Alonso Formento; Pedro Saz Muñoz; Antonio Lobo Satué; Tirso Ventura Faci; Concepción De La Cámara Izquierdo; Guillermo Marcos Aragüés

2010-01-01

303

Penas sin importancia y Tío Vania: Diálogo paródico entre Chejov y Gambaro  

E-print Network

autor ruso finisecular, la pieza de Gámbaro se constituye en lo que Linda Hutcheon ha definido como parodia postmoderna: la transcontextualización que confronta obras, en un juego de identidades y diferencias, en complejo reciclaje artístico y...

Morell, Hortensia R.

1997-10-01

304

Le Facteur 4 : entre scnarios inacceptables et scnarios inatteignables P. Criqui (conomiste CNRS, Universit de Grenoble)  

E-print Network

'abord que si les émissions mondiales ne sont pas stabilisées à l'horizon 2020-2030, puis ramenées en 2050 discussions en cours, très concrètes, portent sur l'horizon 2020 et non sur les projections à l'horizon 2050 La division par quatre des émissions de gaz à effet de serre à l'horizon 2050 est inscrite dans la

Paris-Sud XI, Université de

305

Vol. 2, No. 2 CMNS INNovatorS aNd ENtrEprENEurS  

E-print Network

signature instructional programs across disciplines; educate tomorrow's innovators and entrepreneurs for the future by making I&E a central aspect of our mission. The college is committed to developing a culture transform ideas to creative actions that generate economic, social or cultural value. The college prides

Lathrop, Daniel P.

306

Asociación entre el virus XMRV y enfermedades humanas: preguntas y respuestas  

Cancer.gov

El XMRV es un retrovirus del que se informó por primera vez en 2006 como una causa potencial del cáncer de próstata. Está estrechamente relacionado con los virus de leucemia murina, los cuales causan una amplia variedad de cánceres así como enfermedades inmunológicas y neurológicas en ratones.

307

Les écarts de salaires entre les secteurs public et privé en Afrique francophone : analyse comparative  

Microsoft Academic Search

[eng] Wage Deviations between the Public and Private Sectors in French-Speaking Africa: A Comparative Analysis, . by Jean-Pierre Lachaud.. . In the structural adjustment programmes implemented in Africa, the idea that public-sector wages are too high compared with private-sector wages forms one of the bases for public-sector wage policies. Yet few studies have actually examined the existence of a sectorial

Jean-Pierre Lachaud

1994-01-01

308

ENTR 321-001: New Venture Planning CRN 11765, Fall Semester 2013  

E-print Network

as well as a thorough description of the secondary sources available. One reason new businesses fail; shaverk@cofc.edu Catalog Description Student teams write complete business plans for new ventures or spin-offs. The basic document used for seeking such funding is the business plan. During the heyday

Young, Paul Thomas

309

Croisements interspcifiques entre quelques Brassicae et Brassica napus L. Analyse gnomique des hybrides et  

E-print Network

. napus L., B. campestris L. x B. napus, B. carinata A. Br. x B. napus, B. juncea Culture d'embryon Coss. x B. napus. in vitro, Nous avons réalisé la culture in vitro des embryons immatures issus de ces, hybrids and possibilities of obtaining male sterility in rape. Cytogenetics, The production of alloplasmic

Paris-Sud XI, Université de

310

"Entre Familia": Immigrant Parents' Strategies for Involvement in Children's Schooling  

ERIC Educational Resources Information Center

Teachers and administrators in schools with large, working-class Latino populations often complain of parents' indifference or lack of involvement in children's schooling because of their low visibility at school events and relatively little face-to-face communication with teachers and school administration. In a series of…

Poza, Luis; Brooks, Maneka Deanna; Valdés, Guadalupe

2014-01-01

311

Trayectoria de Jos Mora Guarnido. Espejo de un intelectual entre Espaa y Amrica  

E-print Network

Guerra civil, y por otro, la instalación del fascismo y del nazismo en Europa y su rápida ramificación en periodista y ocupó la responsabilidad de Cónsul de la República española en Uruguay, intelectual radicante

Paris-Sud XI, Université de

312

Confiance et coopration entre le contrleur de gestion et les managers: une relation rciproque  

E-print Network

by organization of expert search tasks in the Text REtrieval Conference (TREC) [1, 5, 7]. A prominent language will study their effect in expert finding. 4. Anchor texts were shown to help Web search [3]. We will study

Boyer, Edmond

313

Pertes de charge des fluides non newtoniens thermodependants en écoulement entre deux plaques parallèles  

NASA Astrophysics Data System (ADS)

In this Note, the pressure drop of non-Newtonian thermodependent fluids flowing between two parallel plates is considered. The effects of different parameters on the evolution of local friction factor are numerically investigated in two heating cases and correlations are proposed to compute the pressure drop. To cite this article: V.T. Nguyen, M. Lebouche, C. R. Mecanique 335 (2007).

Nguyen, Van Tuan; Lebouche, Michel

2007-01-01

314

Segregación educativa y la brecha salarial por género entre los recién graduados universitarios en Colombia  

Microsoft Academic Search

In this paper we show the importance of subject of degree in explaining the gender wage gap in Colombia. In order to minimize the influence of gender differences in experience, promotions, and job changes on the wage gap, we focus on college graduates who have a formal job and who have been in the labor market at most one year.

Laura Cepeda Emiliani; Juan D. Barón

2012-01-01

315

Efficience et Mutations des Organisations Industrielles Mobilit gographique et salaires l'entre  

E-print Network

labour market, when getting a job. An econometric test of a model decision is issued, based words : geographic mobility, wages, labor market JEL classification : J2, J3 1 #12;Mobilité géographique. On montre ainsi que le gain salarial potentiel est une composante importante de la décision de migrer

Paris-Sud XI, Université de

316

QoS Fim a Fim Atravs da Combinao entre Servios Integrados e Servios Diferenciados  

E-print Network

Institucional de Capacitação Docente e Técnica (PICDT) da CAPES. #12;1 1. Introdução Tradicionalmente, as inter, em dois importantes aspectos: primeiro ele deve ser capaz de controlar o desempenho do perfil da rede

Endler, Markus

317

Existe un conflicto entre la globalizacion del turismo y los recursos naturales?  

Microsoft Academic Search

La globalización, así como el turismo internacional, son dos de los fenómenos económicos más analizados en los últimos años, tanto por su creciente importancia como por sus visibles efectos sobre la economía. La notable expansión del turismo tiene como origen, en gran parte, las mismas causas que explican la globalización económica, de ahí que, a menudo, se hable de‘globalización turística’.

Javier Capo Parrilla; Teresa Palmer Tous

2006-01-01

318

¿TURISMO VERSUS DESARROLLO? UNA PERSPECTIVA CRITICA DE LAS INTERACCIONES ENTRE TURISMO Y DESARROLLO  

Microsoft Academic Search

Un lugar comun frecuente en la teoria turistica es la consideracion de la actividad turistica como un gran agente transformador de la realidad territorial donde se llevan a cabo tales actividades, dados los impactos, positivos y negativos que el turismo produce en los campos economico, social y medioambiental (Butler, 1974 y 1975; Pearce, 1988; Picornell, 1995; Murphy, 1983; Mathieson y

Francisco J. Calderon Vazquez

2010-01-01

319

Estudio comparativo entre diferentes productos igualadores en la tintura de la lana  

Microsoft Academic Search

Dans cet étude, on effectue une comparaison du pouvoir égalisateur racine-pointe de plusieurs produits auxiliaires du type commercial ainsi que de la bétaine C12, en utilisant des colorants foulon, prémétallisés 1:2 et réactifs.\\u000aEn général, les produits auxiliaires augmentant l'absortion, produisent un meilleur effet égalisateur qui dépend du type et de la concentration du colorant, ainsi que de la concentration

José Cegarra Sánchez; Ascensión Riva Juan

1970-01-01

320

AFC 2011, 10 et 11 mai, Montpellier. LE LIEN ENTRE L'ENGAGEMENT  

E-print Network

results relative to a possible link between social and financial performances by analyzing an industry with financial performance, the second one, that is to say the companies selection in a sustainable index, presents a negative relation. Key words: social performance, financial performance, social reporting

Boyer, Edmond

321

Analyse des relations entre plasticité architecturale des buissons et prolifération de leurs populations.  

E-print Network

??L'étude qualitative et quantitative du mode de développement des plantes envahissantes est actuellement considérée comme une étape clef dans la compréhension des phénomènes d'invasion. L'objectif… (more)

Charles-Dominique, Tristan

2011-01-01

322

Analyse des relations entre plasticité architecturale des buissons et prolifération de leurs populations.  

E-print Network

??L’étude qualitative et quantitative du mode de développement des plantes envahissantes est actuellement considérée comme une étape clef dans la compréhension des phénomènes d’invasion. L’objectif… (more)

Charles-Dominique, Tristan

2011-01-01

323

Les stimulations olfactives dans les relations entre l'enfant et la mre  

E-print Network

are discussed. We also found that one-third of 3 to 5 years old children more often chose a tee-shirt worn comportements d'agressions se ritualisent et sont moins fréquents qu'avant la remise du tricot ou que les autres

Boyer, Edmond

324

Relation entre les proprits chimique, cristallographique et lectronique de films de sulfure de cadmium prpars  

E-print Network

de cadmium préparés par pulvérisation réactive F. Dutault et J. Lahaye Centre de Recherches sur la sulfure de cadmium ont été préparés par pulvérisation réactive de chlorure de cadmium et de thiourée. Les préparation et de recuit. Abstract. 2014 Films of cadmium sulfide were prepared by spray of aqueous solution

Paris-Sud XI, Université de

325

PERCEPÇÃO DE FATORES DE RISCO E DE PROTEÇÃO PARA ACIDENTES DE TRÂNSITO ENTRE ADOLESCENTES  

Microsoft Academic Search

PERCEPTION OF RISK AND PROTECTION FACTORS FOR TRAFFIC ACCIDENTS AMONG ADOLESCENTS Traffic accidents represent, in several places around the world, the main cause of non-natural death among adolescents. This study aimed to identify risk and protection factors related to this phenomenon. The participants in the study were 32 adolescents, divided into four groups according to their socioeconomic level (ABEP's specifications

MIRIA BENINCASA

326

Les écarts de salaire entre les hommes et les femmes continuent à se réduire  

Microsoft Academic Search

[fre] En 1987, le salaire net annuel moyen s'élève à 96 800 F, soit un peu plus de 8 000 F par mois pour les personnes à temps complet dans les secteurs privé et semi-public. Son pouvoir d'achat a été strictement maintenu. Par ailleurs, pour la première fois depuis 1979, celui du SMIC net ne progresse pas. . L'écart de

Corinne Benveniste; Stefan Lollivier

1988-01-01

327

LES FIGURES D'ALEXANDRE DANS LA LITTERATURE PERSANE : ENTRE ASSIMILATION, MORALISATION ET IRONIE  

E-print Network

leur vision intellectuelle, leurs aspirations sociales et leurs valeurs morales. On trouve des « romans-Est, dans des langues et des versions des plus diverses. Ces « romans » ne sont pas basés sur des sources, doù lappellation de Roman d'Alexandre du Pseudo-Callisthène2 . Contenant une part de vérité historique

Boyer, Edmond

328

Interdisciplinary Institute for Innovation Politiques d'entre et de sortie du  

E-print Network

'accident de Fukushima-Daiichi, l'industrie allemande du nucléaire a dû s'incliner devant la décision d'Angela Merkel et de son parti de fermer rapidement les centrales nucléaires allemandes. Malgré les lourdes

Paris-Sud XI, Université de

329

Amlioration du circuit visuel des Contrleurs Ariens pour relier les donnes entre visualisations en utilisant  

E-print Network

.conversy@enac.fr RESUME Plusieurs affichages sont utilis�s dans l'activit� du Contr�le du Trafic A�rien, comme la vue perturbateur lorsque le trafic augmente et les visualisations affichent un grand nombre d'objets graphiques Terms Design, Human Factors Keywords InfoVis, visual transitions, animations, visualizations study. 1

Paris-Sud XI, Université de

330

Inter-relações entre a anatomia vegetal e a produção vegetal  

Microsoft Academic Search

Palavras-chave: anatomia vegetal, ensino de botânica, produção vegetal, agronomia ABSTRACT - (Interrelations between plant anatomy and plant production). A literature revision is accomplished to approach the plant anatomy within the context of the plant production. The main objective is to contribute so that the Botany teacher will be able to make it provide for the students of the Agronomy courses

Lenir Maristela Silva; Yedo Alquini; Valdo José Cavallet

2005-01-01

331

Program in innovation & EntrEPrEnEurshiP (PriE)  

E-print Network

by Stanford Graduate School of Business faculty and consists of balanced classes in core business skills (i.e. marketing, operations, strategy, account- ing, finance, and economics) and functional skills (i.e. product

Ford, James

332

Aborto: análise desta prática entre prostitutas residentes em Caxias do Sul - RS  

Microsoft Academic Search

Introduction: Sex workers are at a higher risk of unwanted pregnancies, as they deal with multiple partners of unknown sex histories. Such pregnancies often result in a social, personal and public health problem: Abortion. Aim: To investigate the occurrence of abortion among the at-risk population (prostitutes) living in Caxias do Sul, South Brazil, as well as determine the relation between

Ricardo Sozo Vitor

333

Tea for Two: Performing History and Desire in Sabina Berman's Entre Villa y una mujer desnuda  

E-print Network

amusing, analysis of gender identity. Rather than simply denouncing (or, inversely, perpetuating) traditional gender roles (male or female), Berman shows them to be citational performances as she provides a "historical" account of gender identity... playwright provides an insightful analysis of the power of discursive practices and dramatizes how narrative (in the form of history, popular culture, or even the stories told us by others) author(ize)s the gender roles we cite and perform. Throughout...

Magnarelli, Sharon

1996-10-01

334

Stress e qualidade de vida em Magistrados da Justiça do Trabalho: diferenças entre homens e mulheres  

Microsoft Academic Search

Occupational stress is a frequent theme at present. Occupational stress in Brazilian judges in charge of labor -related cases, quality of life, work-related stressors and coping strategies were investigated. Seventy-five judges answered five instruments sent to them through the class association. They rated the perceived occupational stress level as 8 on a rating scale of 0 to 10. It was

Marilda E. Novaes Lipp; M. Sacramento Tanganelli

2002-01-01

335

Analyse de la substitution entre combustibles dans le secteur résidentiel en Haiti  

Microsoft Academic Search

En Haïti, la filière du bois de feu représente 70% de l'offre d'énergie primaire. L'exploitation de cette filière contribue très fortement à la déforestation du pays. De nombreuses actions ont été menées afin de réduire la pression sur les ressources ligneuses du pays, mais leurs résultats sont timides.On peut identifier six obstacles principaux au jeu de la substitution des combustibles

Jean-Pierre Angelier

2005-01-01

336

Comparación entre EMLA® versus el bloqueo del nervio dorsal del pene en la circuncisión neonatal  

Microsoft Academic Search

Objective: To compare two anesthetic methods, the EMLA cream versus dorsal penile nerve block (DPNB) for neonatal circumcision. Methods: A randomized, prospective, experimental, comparative study was done. We included all newborns with a gestational age of 37 weeks and 2500 g born in our institution, between 1 and 7 days of postnatal age and who accepted the procedure. We divided

Leticia Valenzuela García; Bárbara Gabriela; Cárdenas del Castillo; Isaías Rodríguez Balderrama; José Ramón; Barragán Lee; José Guillermo Martínez Flores

337

Uma comparação entre técnicas de propagação de erros em astrofísica: Monte Carlo x Bootstrap  

NASA Astrophysics Data System (ADS)

Recentemente Dhillon & Watson (2001) criticaram o procedimento de determinação de erros via simulações de Monte Carlo no caso do imageamento indireto de estrelas, por introduzir ruído nos dados e resultar em erros superestimados. Estes autores propuseram a utilização alternativa do método de Bootstrap como uma técnica superior para a estimativa de erros. Neste trabalho apresentamos os resultados de um estudo comparativo da performance das técnicas de simulação por Monte Carlo e por Bootstrap para a determinação de erros em duas situações de interesse: (i) ajuste de modelos a espectros observados e (ii) imageamento indireto de discos de acréscimo com técnicas de mapeamento por eclipse. No caso (i), os dados de entrada são espectros de emissão simples de hidrogênio aos quais é adicionado ruído gaussiano de amplitude selecionada. No caso (ii), são produzidas curvas de luz do eclipse de uma distribuição de brilho seguindo a lei TµR-3/4 para discos estacionários cuja taxa de acréscimo varia ao longo do eclipse segundo uma distribuição gaussiana de amplitude selecionada, simulando o ruído. A avaliação da performance é feita com o auxílio de um diagrama do erro relativo na grandeza ajustada, conforme obtido por cada método, versus o erro relativo (ruído/sinal) dos dados de entrada. O estudo mostra que as duas técnicas produzem resultados semelhantes nos dois casos, e que a suposta superioridade do método de Bootstrap não se confirma.

Waelkens, A. H.; Janot Pacheco, E.

2003-08-01

338

La fbrica de la inseguridad en Caracas Una leyenda urbana entre necesidad de gestin y  

E-print Network

metrópoles latino-americanas ****** Julien Rebotier jrebotier@hotmail.com CREDAL ­ IHEAL VESPA ­ INRS, cidade e política: perspectivas comparativas quatro metrópoles latino-americanas, São Paulo : Brazil la UCV (Roberto Briceño León) *Centro por la Paz y los DDHH de la UCV (Ana María San Juan) *ONG Paz

Paris-Sud XI, Université de

339

“Entre Dos Mundos” (Between Two Worlds): Bicultural Skills Training with Latino Immigrant Families  

Microsoft Academic Search

This paper focuses on the acculturation model of second-culture-acquisition for Latino immigrants. Two theoretical frameworks,\\u000a assimilation and alternation theories, are compared within the acculturation model. Empirical research findings suggest that\\u000a assimilation is a risk factor for increases in negative health behaviors and mental health problems. Conversely, biculturalism\\u000a appears to be an emerging protective factor that buffers assimilation stress, enhances socio-cognitive

Martica L. Bacallao; Paul R. Smokowski

2005-01-01

340

Les incompatibilites entre la theorie standard de l'extinction interstellaire et l'observation  

Microsoft Academic Search

The standard interpretation of the extinction curve does not agree with some observations. The light we receive from a reddened star must be contaminated by starlight scattered at very small angular distances from the star. The true extinction curve is a straight line from the near infrared to the far-UV. If so, all interstellar dust models must be questionned. A

Frederic Zagury

2002-01-01

341

Legume Lectins Inhibit Human Parainfluenza Virus Type 2 Infection by Interfering with the Entr  

PubMed Central

Three lectins with different sugar binding specificities were investigated for anti-viral activity against human parainfluenza virus type 2 (hPIV-2). The lectins, concanavalin A (Con A), lens culinaris agglutinin (LCA) and peanut agglutinin (PNA), inhibited cell fusion and hemadsorption induced by hPIV-2. Virus nucleoprotein (NP) gene synthesis was largely inhibited, but fusion (F) and hemagglutinin-neuraminidase (HN) gene syntheses were not. An indirect immunofluorescence study showed that Con A inhibited virus NP, F and HN protein syntheses, but LCA did not completely inhibit them, and that PNA inhibited only NP protein synthesis. Using a recombinant green fluorescence protein-expressing hPIV-2, without matrix protein (rghPIV-2?M), it was found that virus entry into the cells was not completely prevented. The lectins considerably reduced the number of viruses released compared with that of virus infected cells. The lectins bound to cell surface within 10 min, and many aggregates were observed at 30 min. Con A and LCA slightly disrupted actin microfilaments and microtubules, but PNA had almost no effect on them. These results indicated that the inhibitory effects of the lectins were caused mainly by the considerable prevention of virus adsorption to the cells by the lectin binding to their receptors. PMID:22852043

Uematsu, Jun; Koyama, Aoi; Takano, Sayaka; Ura, Yukari; Tanemura, Miho; Kihira, Sahoko; Yamamoto, Hidetaka; Kawano, Mitsuo; Tsurudome, Masato; O’Brien, Myles; Komada, Hiroshi

2012-01-01

342

ENTR 320-001: Principles of Entrepreneurship, CRN 10854 Fall Semester 2013  

E-print Network

. Thousand Oaks, CA: Sage. ISBN 978-1-4129-9265-7 Osterwalder, A., & Pigneur, Y. (2010). Business model the ethical implications of various business strategies and procedures. Innovation and creativity. The reader value creation, rather than the single event of opening a business. Reflecting recent research

Young, Paul Thomas

343

7 juillet 2011 SAUSSURE DANS LES GRAMMAIRES FRANAISES DE L'ENTRE-  

E-print Network

and gauge the extent of the influence of Saussure's Course in General Linguistics on works on French grammar-existent. It occurs earlier than in other areas of linguistics and, more generally, of the humanities. C'est devenu

Paris-Sud XI, Université de

344

De la Burguesía a las Elites, entre la ambigüedad y la renovación conceptual  

Microsoft Academic Search

El artículo estudia cómo la teoría general de las elites llega a la historiografía española más por su contexto ideológico que por su contenido teórico. Señala los rasgos fundamentales de la teoría de las elites que no perviven en el manejo actual del vocablo y aquellos que sí lo hacen. El concepto elite encubre frecuentemente eclecticismo ideológico, pobreza teórica y

Pedro Carasa

2001-01-01

345

Relations entre production organique et apports terrignes dans les sdiments fluviatiles holocnes  

E-print Network

with episodes of poor terrigenous delivery due to warmer periods, while clayey­silty to gravely mineral beds that it is necessary to calculate the specific weight- accumulation rates of organic matter on one hand, and of the mineral matter of the other hand, in order to get an accurate view of the quantitative relations between

Boyer, Edmond

346

Les mandres du dveloppement agricole au Lac Alaotra, Madagascar Entre inconstance politique et innovation technique  

E-print Network

. This conflict of temporalities shaped an agricultural history which built itself more or less between East bank and integration to markets. Key words : agriculture, development, policy, innovation, Lac Alaotra, Madagascar L'histoire mouvementée de l'évolution de l'agriculture au Lac Alaotra, principal grenier à riz de

Paris-Sud XI, Université de

347

Les mandres du dveloppement agricole au Lac Alaotra, Madagascar Entre inconstance politique et innovation technique  

E-print Network

shaped an agricultural history which built itself more or less between East bank and West bank and integration to markets. Key words : agriculture, development, policy, innovation, Lac Alaotra, Madagascar / BV Lac Alaotra Résumé L'histoire mouvementée de l'évolution de l'agriculture au Lac Alaotra

Paris-Sud XI, Université de

348

DTERMINISME DU SEXE CHEZ LES HYBRIDES ENTRE TILAPIA MACROCHIR ET TILAPIA NILOTICA.  

E-print Network

avec les résultats expérimentaux relatifs à la sex-ratio des alevins de tous les rétrocroisements : l'élevage mono- sexe en étang évite la prolifération des alevins, facteur qui limitait jusqu'alors l dans un premier temps à l'étude systématique de la sex-ratio des alevins de tous les rétrocroisements

Paris-Sud XI, Université de

349

EL CASO GUASIMAL, ENTRE LA CORRUPCIÓN, EL CRIMEN Y EL NARCOTRÁFICO EN MONTES DE MARIA  

Microsoft Academic Search

En el presente trabajo, se quiere mostrar un caso emblemático del despojo de tierras, que se ha dado en el Municipio de Zambrano y Córdoba, departamento de Bolívar, República de Colombia. El caso del predio llamado Guasimal, tiene una curiosa historia, salpicada por elementos magistralmente combinados de corrupción administrativa, crimen organizado y las acciones nefastas del narcotráfico, en donde aparecen

Daniel Menco Rivera

2011-01-01

350

Conception:CommeUnSoleil-impression:servicecommunicationetditionUniversitParis13-septembre2011 (entre libre et gratuite)  

E-print Network

#12;Conception:CommeUnSoleil-impression:servicecommunicationetéditionUniversitéParis13-septembre Laboratoire Bio-ingénierie de polymères cardiovasculaires, Isabelle Bataille, Vuk Milisic, Sébastien Li médecine préventive et du département des sports de l'Université Paris 13 vous propose : test d

Banderier, Cyril

351

Le « Harcèlement Entre Pairs » À L'école élémentaire Tchèque: Une Question D'interprétation  

NASA Astrophysics Data System (ADS)

"PEER BULLYING" IN CZECH PRIMARY SCHOOLS: A QUESTION OF INTERPRETATION—This article questions adults' reports of an alleged increase in peer bullying at Czech primary schools. A survey on the school climate revealed that the pupils see it as a generally positive one and consider their relationships to be good. However, compared to France, their behaviour towards the adults is aggressive and rude. This apparent contradiction is linked to a conflict between the educational norms carried over from the old regime (behavioural control and conformism) and the new socio-economic paradigms (critical thinking and free enterprise). Public opinion, the media and a number of scientifically-questionable studies have drawn attention to the phenomenon of peer bullying ( šikana), and applied an imported concept to describe it ( school bullying). This makes it possible to avoid questioning the part played by the adults, the school and the researchers; justify segregating pupils from socially, culturally or economically disadvantaged backgrounds (Roma); and facilitate the country's socio-economic inclusion in the European Union by highlighting educational problems about whose nature there is general agreement.

Kohout-Diaz, Magdalena

2008-07-01

352

Relación entre las calcificaciones ateroscleróticas en el tórax detectadas mediante tomografía computarizada y la función pulmonar  

Microsoft Academic Search

Background and objectivesA few recent epidemiological findings indicate a link between atherosclerosis and some lung functions. We studied further the relation between calcified chest atherosclerosis as seen in computed tomography (CT) and several lung functional parameters.

Tapio Vehmas; Asta Hiltunen; Päivi Leino-Arjas; Päivi Piirilä

2009-01-01

353

Les grands-parents dans les familles homoparentales : entre lien biologique et lien social  

E-print Network

sont ceux qui ont, ou comme dans l'adoption peuvent passer pour avoir, donné naissance aux enfants qu homoparental. L'arrivée d'un enfant affecte-t-elle l'acceptation de la conjugalité gay ou lesbienne de leur

Paris-Sud XI, Université de

354

Constructions d'un stigmate sanitaire : la drpanocytose, entre situations locales et globales  

E-print Network

(Goffman, 1963). La drépanocytose, maladie génétique grave répandue originellement dans les pays du Sud et that affect social relationships (Goffman, 1963). Sickle-cell anemia, a serious genetic disease originally'une desquelles elle a succombé. (...) »2 L'approche interactionniste de la notion de stigmate proposée par Erving

Paris-Sud XI, Université de

355

LIENS ET ECHANGES ENTRE LE MAROC ET L'AFRIQUE SUBSAHARIENNE : lments pour une perspective historique.  

E-print Network

", Editions Eddif, 1994, pp.16. 2 Sambe B, « L'islamisation de l'Afrique par le « Jihad » : un mythe de l'historien arabe ? » (http://bakarysambe.unblog.fr/2009/10/19/lislamisation-de-lafrique-par-le-jihad « jihad » des Almoravides ne fut qu'une manière pour légitimer, religieusement, des relations commerciales

Paris-Sud XI, Université de

356

Démographie médicale et carrières des médecins généralistes : les inégalités entre générations  

Microsoft Academic Search

[ger] In Frankreich wird das Angebot an ambulanter Gesundheitsversorgung seit 1971 durch den Numerus clausus reguliert, der die Zahl der Medizinstudenten, die in das zweite Studienjahr aufgenommen werden, beschränkt. Ursprünglich auf 8 588 Plätze festgelegt, hat diese Zahl in Wirklichkeit erst ab 1978 abgenommen und fiel im Jahr 1993 auf 3 500 Plätze. Die großen Kohorten im Gefolge des Babybooms

Anne-Laure Samson; Brigitte Dormont

2008-01-01

357

COMPARAÇÃO DO ALINHAMENTO ANATÔMICO DE MEMBROS INFERIORES ENTRE INDIVÍDUOS SAUDÁVEIS E INDIVÍDUOS COM TENDINOSE PATELAR  

Microsoft Academic Search

Comparison of the anatomical alignment of lower limbs between healthy individuals and those with patellar tendinosis Background: Tendinosis is a degenerative condition in tendons caused by excessive stress. If not treated adequately, it may develop into total rupture of the tendon. Misalignment of the patella and\\/or structural abnormalities of the foot are considered risk factors for patellar tendinosis. However, no

S. T. Fonseca; Luciana De Michelis Mendonça

358

Comparação entre modelos digitais de elevação gerados por sensores ópticos e por radar  

Microsoft Academic Search

The aim of this paper is to compare the quality and accuracy of Digital Elevation Models (DEM) generated from different sources. Three different DEMs, covering the same geographic area (region of Uberaba, MG), are tentatively evaluated in this work. The first is a DEM derived from radar interferometry, through the Shuttle Radar Topographic Mission (SRTM). The other two are DEMs

Lucas de Melo Melgaço; Roberto de Souza; Michael Steinmayer; Caixa Postal; R. Felipe Neri

2005-01-01

359

Calculs Numeriques des Interactions Entre les Champs Electromagnetiques et les Tissus Biologiques  

NASA Astrophysics Data System (ADS)

The understanding of electromagnetic field effects on health is a very acute problem nowadays. Indeed, the daily landscape is invaded by waves generated by affordable state-of-the-art equipment. It becomes urgent to improve the knowledge in order to ensure the safety of the users and the general public. At high frequencies two areas of concern can be distinguished: cellular telephony and wireless indoor communications. This dissertation is devoted to two aspects of the research in this field i.e. the numerical dosimetry and the biological experimentation. A new formulation for an expanding grid algorithm based upon the FDTD that can be applied, in particular, at high frequencies is presented. The energy deposition and the associated temperature rise in a model of the human eye due to a resonant dipole at frequencies of 840, 915, 1500 and 1800 MHz are then calculated. The duty cycle of each system is then introduced and its impact on temperature elevation is examined. Finally, a methodological approach to standard setting for portable transceivers is proposed. On the experimental aspect, a protocol has been elaborated and an experimentation to study athermal effects of electromagnetic fields at 9.3 GHz has been carried out. In particular, the importance of polarization has been examined.

Mokhtech, Kamel-Eddine

360

Variabilit des phnomnes d'interfrences entre Vicia sativa L. et Avena sativa L.  

E-print Network

oat than for the associated oat. In contrast, the nitrogen nutrition of the vetch is highly influenced by the oat partner. The relationships obtained between the nitrogen content and the produced biomass have of the dilution equation for nitrogen. The effect of the presence of the vetch on the oat is expressed

Paris-Sud XI, Université de

361

Movimientos peculiares de galaxias en el Universo cercano  

NASA Astrophysics Data System (ADS)

Se presenta un resumen de los resultados más importantes obtenidos en los últimos años sobre movimientos peculiares en el Universo Cercano. En el escenario de inestabilidad gravitacional, el campo de velocidades peculiares es una herramienta muy útil para estimar las fluctuaciones en la distribución de masa que generan los movimientos observados. Esta aproximación puede, además, ser utilizada para poner restricciones al espectro de potencia de la masa, a la relación entre las distribuciones de galaxias y de materia y al valor del parámetro de densidad cosmológico, ?, a grandes escalas. Son además presentados una reconstrucción preliminar de los campos de densidad de masa y velocidades peculiares en el universo cercano usando nuevas medidas de distancias obtenidas con la relación Dn - ?, para una muestra de galaxias elípticas y lenticulares. Dos subestructuras prominentes son encontradas en la región del Gran Atractor, que corresponden a los complejos de Centaurus y Pavo--Indus. Estos últimos, junto a los complejos de Perseus--Piscis y Cetus parecen ser importantes estructuras que determinan el flujo global. El patrón obtenido a través de una muestra de galaxias elípticas muestra variaciones con respecto al obtenido por galaxias espirales. Estos nuevos resultados muestran una coherencia menor en el flujo global, cuando son comparados con resultados obtenidos anteriormente.

Alonso, M. V.

362

UNIVERSIDAD DE GRANADA E.T.S. DE INGENIERA  

E-print Network

olvidar el agradecer a mi esposa Loli su ayuda y sobre todo paciencia. #12; #12; A la memoria de mi padre y a Loli MEDIDAS DE ENTROPÍA Y DISTANCIA EN CONJUNTOS CONVEXOS DE PROBABILIDAD: DEFINICIONES Y

Granada, Universidad de

363

The Auk 119(1):149165, 2002 ANNUAL SURVIVAL RATES OF WINTERING SPARROWS: ASSESSING  

E-print Network

lincolnii] and Fox [Passerella iliaca] sparrow), and two long-distance migrants (``Gam- bel's'' White Sound), dos especies migratorias de distancia moderada (Melospiza lincolnii y Passerella iliaca) y dos

Sandercock, Brett K.

364

Modelisation de l'interaction entre une impulsion laser ultrabreve et une nanostructure plasmonique en milieu aqueux  

NASA Astrophysics Data System (ADS)

There is still a limited understanding of the basic mechanisms and processes triggered by laser irradiation that lead to the damaging of the surrounding structures. In particular, there exists for the moment no complete modelling of the process that includes all potential sources of cellular damage, including temperature rise, plasma generation, pressure wave emission and vapor bubble formation. This thesis presents such a modelling, with the cell environment emulated by a much simpler aqueous medium. Water is used as its optical, mechanical and thermal characteristic are similar enough to the cell environment to enable the transposition of the results and tendencies observed in water to this medium. Modelling consists in a continuous medium based approach that uses coupled partial differential equations to simulate the nanostructure-water system's response to an ultrafast laser pulse. The time-dependant field distribution in the system is simulated using classical electromagnetic theory, while the temperature in the nanostructure is calculated using a two-temperature model. Generation and heating of a plasma in the nanostructure's vicinity from photoionization and impact ionization in the near-field, as well as from photothermal emission from the nanostructure at the metal interface are also included. This plasma locally modifies the refractive index, which alters the simulated optical response of the system. Energy relaxation from this plasma as well as heat conduction from the nanostructure's lattice transfer energy to the water, which dynamics and thermodynamics evolutions are simulated from hydrodynamic and energy conservation equations. Modelling is used for analyzing the interaction of a near-infrared ultrafast laser pulse (45 fs, 800 nm, 200 mJ/cm2) with two distinct systems : a 100nm gold nanoparticle and a 10x41 nm2 gold nanorod. The gold nanoparticle shows a plasmon resonance at a ˜550 nm wavelength, and is thus slightly off-resonance at the 800 nm irradiation wavelength. In opposition, the gold nanorod shows a plasmon resonance directly at 800 nm and is thus in-resonance at the irradiation wavelength. The system of tightly coupled time-dependant non-linear partial differential equations is solved in 3D using a finite-element method. The modelling shows the generation of vapor bubble around both systems, which maximal diameter and growth time are validated from spectroscopic measurements. Results show an important production of plasma in the nanostructure's near field, which fast relaxation heats rapidly the surrounding water, leading to the emission of strong pressure wave and to the formation of a vapor bubble. Simulations further demonstrate the crucial importance of the plasma in the cavitation mechanism. For both the nanoparticle and the nanorod, results show that most of the laser energy is indeed absorbed in the plasma surrounding the nanostructure rather than in the nanostructure itself. In particular, the energy absorbed in the nanoparticle is shown to be insufficient to induce the formation of a vapor bubble at 200 mJ/cm2, whereas such a bubble is experimentally observed. This is a major result of the thesis, as such a plasma-mediated plasmonic enhanced cavitation mechanism has never been reported in the literature. The existence of this plasma-mediated mechanism that does not rely on the particle extreme heating to initiate cavitation has important consequences on cell nanosurgery applications. Finally, based on the same modelling, we develop a simple and efficient method to evaluate the potential of specific nanostructures and irradiation parameters for cell nanosurgery. We introduce a performance factor based on minimizing the energy density deposited in the nanostructure to avoid fragmentation, while maximizing the overall energy deposited in the system, to enhance the production of vapor bubbles. Results predict off-resonance 175 nm gold nanoparticles to be best suited for near-infrared ultrafast laser cell nanosurgery using 45 fs pulses at a wavelength of 800 nm. They also confirm the low inte

Boulais, Etienne

365

Utilisation des antidépresseurs chez les patients souffrant de douleurs chroniques: quelle congruence entre prescription et notice d’emballage?  

Microsoft Academic Search

Résumé  Différentes études font état d’une consommation médicamenteuse inappropriée et\\/ou excessive chez les patients souffrant de\\u000a douleurs chroniques. Les patients disposent de diverses sources d’information à propos des médicaments. Ces sources peuvent\\u000a leur fournir des informations congruentes ou non, correspondant ou non à leurs représentations et expériences préalables.\\u000a Les antidépresseurs, fréquemment prescrits dans le contexte de douleurs chroniques, sont associés à

C. Cedraschi; V. Piguet; J. Desmeules; A. F. Allaz; W. Fischer; P. Dayer

2001-01-01

366

Les violences entre hindous et musulmans au Gujarat (Inde) en 2002 : meutes d'tat, pogromes et raction antijihadiste  

E-print Network

between Hindus and Moslems in Gujarati (Inda) in 2002 : State riots, pogroms and anti-jihad reactions Riots between Hindus and Moslems increasingly hinge on political determinants. The violence of 2002

Boyer, Edmond

367

Mal necessário? : a memória da ditadura militar brasileira (1964-1985) entre os estudantes de graduação da UnB.  

E-print Network

??Dissertação (mestrado)—Universidade de Brasília, Instituto de Ciências Sociais, Centro de Pesquisa e Pós-Graduação sobre as Américas, 2013. O presente estudo analisa a Memória Coletiva sobre… (more)

Fernandes, Analu

2013-01-01

368

Interactions gntiques entre pathotypes franais d'Heterodera avenae Woll. et varits d'orge : I. -Aspect  

E-print Network

. de 3 orges du test international des pathotypes de ce nématode : « Siri », « Ortolan », « P 31 complémentaires, et C dans « Siri », efficaces à l'encontre respectivement des pathotypes Fr 2 et Fr 3. - EF et GH been studied in 4 barley lines : 'Siri', 'Ortolan', 'P 31-322-1' and 'Vogue'. ANDERSEN, in Denmark, has

Boyer, Edmond

369

Nuevos datos para un viejo debate: Los vínculos entre ferrocarriles e industrialización en Chile y México (1860-1950)  

Microsoft Academic Search

Since the 19th century, the specialization in and export of basic products in Latin America has not been incompatible with the creation of manufacturing industry; moreover, the path towards industrialization depended on the kind of infrastructure demanded by primary goods-exporting activity. In such an effort, the railroad was crucial,not only as a means of transporting basic products, but also as

Guillermo Guajardo

1998-01-01

370

La UA aparece por primera vez entre las 200 mejores universidades del mundo en materia de Qumica  

E-print Network

supone un reconocimiento a la labor realizada por la instituci�n y en concreto por sus investigadores dentro de esta �rea", apunta Enrique Herrero, director del Secretariado de Investigaci�n. En concreto

Escolano, Francisco

371

Comment peut-on tre bdouin ? Loin des mythes, une entres de plain-pied dans la modernit  

E-print Network

de touristes en mal d'aventure, Eyd a par contre bien saisi une chose : l'image du bédouin qui monte désert. Le monde du désert et des tribus bédouines nourrit depuis fort longtemps l'imaginaire occidental touristes ? Ce même pèlerin serait probablement déçu, pour ne pas dire dérangé, d'apprendre que ce vieux

Paris-Sud XI, Université de

372

Entre le dbat et le banal : les mariages religieux des couples du mme sexe aux tats-Unis  

E-print Network

'après un article du magazine protestant progressiste le Christian Century, c'est une « conservative church Wilcox. En 1996, Perry se décrit lui-même comme un « liberal evangelical »4 , un progressiste qui serait

Paris-Sud XI, Université de

373

Estudio Comparativo entre Manitol 10% y Polietilenglicol en la Preparación para Colonoscopia en pacientes internados en el Hospital Central FAP  

Microsoft Academic Search

INTRODUCTION: In search alternatives for colonoscopic preparation, we decided to compare the effectiveness, safety and tolerance of the use of 10 % manitol with polyethyleneglycol. METHODS: A prospective, randomized and simple blind study was performed. Eighty consecutive inpatients were prospectively randomized to receive bowel preparation for elective colonoscopy with either 1 liter of 10% manitol (M Group, n=40) or 4

Alfonso Chacaltana Mendoza; Carlos Rodríguez Ulloa

374

La Littérature De Jeunesse Entre Normes Pédagogiques Et Littéraires : Le Cas Des Pays Francophones D'afrique  

NASA Astrophysics Data System (ADS)

YOUTH LITERATURE IN THE CONTEXT OF PEDAGOGIC AND LITERARY NORMS: THE FRENCH-SPEAKING COUNTRIES OF AFRICA - There are two approaches to children's and youth literature, one didactic, the other aesthetic. This gives rise to the following question: taking into account the fact that children's literature aspires to be a literary form in its own right, should more weight be attibuted to its aesthetic value when evaluating it? This paper examines this question - which has in the past been the subject of highly controversial discussions in the German-speaking regions - by focusing on youth literature in the French-speaking coutries of Africa. The pedagogic dimension cannot be ignored when considering this literary context because it is so much a part of the post-colonial dynamic. Youth literature in the French-speaking countries of Africa echoes current realities. Examples are used to demonstrate how literature can deal with vital questions without neglecting the literary aspect.

Attikpoé, Kodjo

2007-01-01

375

Relations entre motifs structuraux et dynamique de réseau dans les cristaux mixtes Cu-Zn-Sn-Se : études premiers principes.  

E-print Network

??Le travail porte sur les propriétés vibrationnelles de semi-conducteurs innovants, notamment les composés Cu2ZnSnSe4, Cu2ZnSnS4 de type kesterite, qui, dans le domaine du photovoltaïque, soutiennent… (more)

Mortazavi Amiri, Narjes Beigom

2013-01-01

376

L'Amrique, entre rve et dignit Essai sur la rcriture d'une mmoire urbaine en Afrique du Sud  

E-print Network

exemple dans leur rapport à la ville. Mais quelle Afrique du Sud prend quelle Amérique pour modèle ? L'inspire pas pour autant les villes de la nouvelle Afrique du Sud. Là encore, elles se modèlent aujourd'hui sur, modèle, Afrique du Sud, �tats-Unis, Sophiatown Abstract: South African cities are seen as extreme models

Paris-Sud XI, Université de

377

Étude numérique de l'écoulement d'un fluide non newtonien thermodépendant entre deux plaques parallèles  

NASA Astrophysics Data System (ADS)

In this study, the heat transfer of a non Newtonian thermodependent fluid flowing between two parallel plates is considered. The effects of different parameters on the evolutions of thermal boundary layer and of Nusselt number are numerically investigated in two heating cases and correlations are proposed to compute the heat transfer. To cite this article: N. Van Tuan, M. Lebouche, C. R. Mecanique 333 (2005).

Van Tuan, Nguyen; Lebouche, Michel

2005-04-01

378

Metonymie dans la presse ecrite: entre discours et langue (Metonymies in the Press: Between Discourse and Language).  

ERIC Educational Resources Information Center

This paper describes certain metonymies that are often employed in the daily French press. In such metonymies, a human being or a set of individuals are referred to by means of the name of an institutional location (i.e., a capital city, a ministry in a western country, the name of a country). These metonymic patterns do not seem to be used by…

Lecolle, Michelle

2001-01-01

379

Comparação entre o sistema Petrifilm RSA® e a metodologia convencional para a enumeração de estafilococos coagulase positiva em alimentos  

Microsoft Academic Search

SUMMARY COMPARISON OF PETRIFILM RSA SYSTEM WITH THE TRADITIONAL METHODOLOGY FOR THE ENUMERATION OF COAGULASE-POSITIVE IN FOODS. Foods are examined for the presence of coagulase-positive staphylococci using selective and differential media followed by characterization for coagulase, thermoestable nuclease, Gram and catalase tests. These tests may require up to four days to obtain the results, besides time and material used. The

Anderson de Souza Sant'ana; Denise R. Perdomo Azeredo

2005-01-01

380

Relación entre lípidos séricos y estado de las vitaminas C y E como antioxidantes en adultos mayores venezolanos  

Microsoft Academic Search

RESUMEN. En el envejecimiento se observa tendencia a hiperlipidemias, cambios en la distribución de lipoproteínas y una declinación del sistema de defensa antioxidante del organismo. El objetivo de este estudio fue relacionar concentraciones séricas de colesterol total, fracciones, triglicéridos y Vitaminas C y E. Se evaluaron 61 adultos mayores de 60 años de edad, de enero-marzo, 2006. Se diagnosticó estado

Lesbia Meertens; Gloria Naddaf; Adelmo Rodríguez

2008-01-01

381

El proyecto DIME y el robot conversacional Golem: Una experiencia multidisciplinaria entre la computacin y la lingstica  

E-print Network

manera como se interactúa con las máquinas y tendrá un gran impacto en varios ámbitos de la vida social y centers", o en las industrias del turismo y el entretenimiento. La reducción del tamaño de los

Pineda, Luis

382

TUDE THORIQUE ET EXPRIMENTALE DES TRANSITIONS A PLUSIEURS QUANTA ENTRE LES SOUS-NIVEAUX ZEEMAN D'UN ATOME  

E-print Network

-NIVEAUX ZEEMAN D'UN ATOME Par J. M. WINTER, Laboratoire de Physique, E. N. S., Paris et C. E. A., Saclay. Résumé chaque fois que la pulsation 03C9 obéit à l'équation E(m) 2014 E(m') = 012703C9(m 2014 m') E(m) étant l de la résonance 0127 03C9 = E(+ 1/2) 2014 E(2014 1/2) obtenu dans le 1er cas, on montre qu'il y

Paris-Sud XI, Université de

383

Diferencias entre el control clínico y ambulatorio de la hipertensión arterial en pacientes muy ancianos. Proyecto CARDIORISC–MAPAPRES  

Microsoft Academic Search

Background and objectiveHypertension is highly prevalent in the very elderly. We studied control rates of hypertension according to clinic blood pressure (BP) and ambulatory BP monitoring (ABPM) in treated hypertensives aged ?80 years.

José L. Llisterri; Francisco J. Alonso; Manuel Gorostidi; Cristina Sierra; Alejandro de La Sierra; José R. Banegas; Julián Segura; Javier Sobrino; Juan J. De La Cruz; Felipe Madruga; Pedro Aranda; Josep Redon; Luis M. Ruilope

2009-01-01

384

Correspondance entre forme et sens a propos du subjonctif (Correspondence between Form and Meaning in the Subjunctive).  

ERIC Educational Resources Information Center

Discusses the traditional description of the French subjunctive, as opposed to a description based on principles of mathematical logic, which can account for the relationship between form and meaning in the subjunctive. (AM)

Gross, Maurice

1978-01-01

385

Les violences entre hindous et musulmans au Gujarat (Inde) en 2002 : émeutes d'état, pogromes et réaction antijihadiste  

Microsoft Academic Search

Riots between Hindus and Moslems increasingly hinge on political determinants. The violence of 2002 in Gujarati is however unique, due to the level of implication of political actors and to the government of that particular State. Such a political instrumentation has been facilitated by Islamic attacks organised in India since december 2001, thus fuelling a desire for reprisals within the

Christophe Jaffrelot

2003-01-01

386

Relaction entre la flora aeropalinologica y el espectro polinico de tres ciudades del sw. de España (1989)  

Microsoft Academic Search

Relationship between aeropalynological flore and pollen spectrum in SW Spain (1989). - This work presents the results of aeropalynological studies carried out in three cities in the SW of the Iberian Peninsula (Cádiz, Huelva and Seville). These are situated in the Guadalquivir valley, which opens into the Atlantic forming a low coast of estuaries and marshes.The surrounding vegetation has been

P. Candau; F. J. Gonzalez Minero; M. L. Gonzalez Romano

1993-01-01

387

Entre el Renacimiento y el Nuevo Mundo: Vida y obras de Hernan Perez de Oliva (1494?-1531)  

ERIC Educational Resources Information Center

Hernan Perez de Oliva (1494?-1531) was a learned Spanish humanist who wrote his major works in the decades following the discovery of America. By articulating events of his career and literary life, my goal is to comprehend his contributions to the early literary production regarding the newly-found Americas. The thesis consists of three parts.…

Pellus Perez, Elena

2012-01-01

388

Sparation et rgime de mobilit entre Isral et la Cisjordanie (2000-2009) : Rglementations, pratiques et acteurs  

E-print Network

CNAM ­ 41, rue Gay-Lussac, 75005 Paris C'est au début des années 1990 que les autorités israéliennes réprimer la première Intifada (1987-1993), puis à contrer les attentats suicides palestiniens en Israël

Paris-Sud XI, Université de

389

Comptes Rendus des JNC 17 -Poitiers 2011 Composites renfort tricot : Relations entre contexture, nature du renfort et  

E-print Network

: Relationships between fabric architecture, fibre type and mechanical properties of the infused composite Laura'autre des directions principales du renfort. Abstract Weft knitted fabrics can be easily draped thanks to a high deformation ability and the process capability to knit complex shape preforms. Nevertheless

Boyer, Edmond

390

Tabaco, álcool e outras drogas entre adolescentes em Pelotas, Rio Grande do Sul, Brasil: uma perspectiva de gênero  

Microsoft Academic Search

This study assesses the relationship between gender and use of psychoactive substances (al- cohol, nicotine, and illicit drugs) by teenagers. In 2002, a cross-sectional study was carried out in the urban area of Pelotas, southern Brazil. Multi-stage sampling was used to obtain a sam- ple of adolescents, 15 to 18 years of age. Subjects were interviewed using a self-applied confiden-

Rogério Lessa Horta; Bernardo Lessa Horta; Ricardo Tavares Pinheiro; Blanca Morales; Marlene Neves Strey

2007-01-01

391

L’antibiothérapie dans la rhinopharyngite de l’enfant en France : entre les recommandations et la pratique quotidienne  

Microsoft Academic Search

The aim of this study, based on a literature review, is to present the current guidelines for the management of nasopharyngitis in France, to describe the way antibiotics are used in this disease, to assess the gap between this use and guidelines, and to find explanations. The gap between the actual use and guidelines is important and reveals an overprescription

L Misrahi; A Bourrillon; T Lebrun; B Dervaux

2003-01-01

392

Avaliação da concordância entre a reflectância estimada pelo sensor MODIS\\/Terra e a obtida in situ  

Microsoft Academic Search

This work presents an evaluation of the apparent and surface reflectance for the MODIS (Moderate Resolution Imaging Spectroradiometer) onboard the EOS Terra platform. For evaluating the data, the transformed MODIS image was confronted with the ground measurements performed in the field using two FieldSpec Pro FR spectroradiometers for the ground observation and one FieldSpec Hand Held for measurements in the

Egídio Arai

393

ASPECTOS DA MOTIVAÇÃO PARA O TRABALHO VOLUNTÁRIO COM DOENTES ONCOLÓGICOS: UM ESTUDO COLABORATIVO ENTRE BRASIL E PORTUGAL  

Microsoft Academic Search

Brazil and Portugal, for reasons of history and immigration, share a similar culture and language. This is a inter cultural research for to compare a specific motivational processes and psychological functions involved in volunteer work. The work of volunteers is also a very important activity in the social support of cancer patients and needs further evaluation in both of countries.

Camila B. de Souza; Maria do Rosário; N. Bacalhau; Maria de Jesus Moura; José Henrique Volpi; Sónia Marques; Maria Rosalina; G. Rodrigues

394

En la búsqueda de características en eyecciones coronales de masa que discriminen entre dos paradigmas físicos en modelos de ECMs  

NASA Astrophysics Data System (ADS)

Se conocen tres diferentes fenómenos de gran escala que ocurren en la atmósfera solar, denominados eyecciones coronales de masa (ECMs), protuberancias eruptivas y grandes fulguraciones de dos bandas. Estos fenómenos están estrechamente relacionados y podrían ser distintas manifestaciones de un único proceso físico. Las ECMs son definidas como eyecciones de gran escala de masa y flujo magnético desde la baja corona al espacio interplanetario. Desde su descubrimiento en los '70, muchos modelos han sido propuestos para explicar su origen y evolución. La explicación física de las ECMs es un tema de debate intenso. No obstante, los modelos pueden sintetizarse en dos grandes grupos: 1) los modelos de inyección de flujo y 2) los modelos de almacenamiento y liberación. En este trabajo, se presentan los estudios realizados con una serie de eventos observados con el coronógrafo MICA (Mirror Coronograph for Argentina), el telescopio en H-alfa HASTA (H-alpha Solar Telescope for Argentina) y los coronógrafos C2 y C3 de la sonda SOHO (Solar and Heliospheric Observatory). Los eventos que pudieron ser identificados como ECMs son contrastados dentro del esquema de los dos paradigmas teóricos propuestos.

Paissan, G.; Stenborg, G.; Rovira, M.

395

RELATO DE EXPERIÊNCIA: TERAPIA ASSISTIDA POR ANIMAIS (TAA) - MAIS UM RECURSO NA COMUNICAÇÃO ENTRE PACIENTE E ENFERMEIRO  

Microsoft Academic Search

This study consists of an experiment report after getting to know the benefits obtained through Animal Assisted Therapy in four health institutions of the city of São Paulo. The visits occurred in the second semester of 2001 in one place specialized in special education for children with diverse syndromes; one that houses old people who are abandoned or with no

Cíntia Hissae Kawakami; Cyntia Kaori Nakano

396

Les Arts libraux dans la tapisserie la fin du Moyen ge : entre iconographie savante et pratiques d'atelier.  

E-print Network

de Philologie et de Mercure composées durant la première moitié du Ve siècle, n'est pas à l Mercure offre comme servantes à son épouse au moment de leurs noces, il assure à son texte une notoriété sont consacrés à la narration du mariage du dieu Mercure avec la Philologie, transportée à cette

Boyer, Edmond

397

Lien hypothétique entre l’endométriose et l’accumulation de xénobiotiques associés aux aliments génétiquement modifiés  

Microsoft Academic Search

Endometriosis is an oestrogen-dependant inflammatory disease affecting 10 % of reproductive-aged women. Often accompanied by chronic pelvic pain and infertility, endometriosis rigorously interferes with women's quality of life. Although the pathophysiology of endometriosis remains unclear, a growing body of evidence points to the implication of environmental toxicants. Over the last decade, an increase in the incidence of endometriosis has been reported

A. Aris

2010-01-01

398

La intervención anglo-francesa en el Río de la Plata entre 1847 y 1851. Un intento frustrado  

Microsoft Academic Search

In the fifth decade of the XIX century, Great Britain and France intervened in the conflict between hegemonic political sides in the Plata River, assuming the defense of the government of Montevideo, interned within the limits of the city. The confrontation was with the federals and, particularly, with the government of the city of Buenos Aires and with the representatives

Jaime Collazo Odriozola

2007-01-01

399

« Géo-littérature » entre logique et philosophie ou l’invention tourniérienne d’un « Art de la fugue »  

Microsoft Academic Search

Dans son Vent Pacaclet Michel Tournier, philosophe échoué, élabore un système générique à trois « genres », la poésie, le roman et la philosophie.\\u000a L’étude cherche à montrer l’impact de la philosophie (le concept) sur l’œuvre de Tournier en se plaçant dans une perspective\\u000a logique avec Ch. S. Peirce et philosophique avec G. Deleuze et F. Guattari. Cette double perspective

Timea Gyimesi

2009-01-01

400

LE JOURNAL DE PHYSIQUE RALISATION DE TRS HAUTES PRESSIONS COMPRISES ENTRE 50 000 ET 10 0000 kg/cm2  

E-print Network

cylindres et des pistons avec des blocs de carbures métalliques de grande dureté ; les cylindres étant Bange utilisé en artillerie. La métallurgie des carbures de grande dureté, comme le carbure de tungstène cylindres et des pistons de dimensions acceptables. Le carbure de tungstène possède un module d'élas- ticité

Paris-Sud XI, Université de

401

RELAÇÕES ENTRE CAPOEIRA E AS TEORIA CRÍTICAS DA EDUCAÇÃO: BUSCANDO POSSIBILIDADES DE SUPERAÇÃO PARA ALÉM DO CAPITAL  

Microsoft Academic Search

After the decade of 1930, the capoeira gains lines of direction for a mercantile formatting, adapting the laws ofMarket' (emphasis in the value of exchange). The priority of the Capoeira in the practical teaching, in them excited questions on the pedagogical treatment. In this direction we present the following question: Is possible, from the critical theoretical references, in special to

Carlos Libório; Caires Araújo; Bartira Telles; Pereira Santos

402

Mouvements actuels des blocs tectoniques dans l'arc Btico-Rifain partir des mesures GPS entre 1999 et 2005  

E-print Network

'amortissent des nappes du Rif vers l'avant-pays. Pour citer cet article : A. Tahayt et al., C. R. Geoscience 340) the Oriental Rif block undergoing clockwise rotation. GPS-derived motions decrease in rate from the Rif nappes

Demouchy, Sylvie

403

La inoculación de plantas con Pantoea sp., bacteria solubilizadora de fosfatos, incrementa la concentración de P en los tejidos foliares Plant inoculation with Pantoea sp., phosphate solubilising-bacteria increases P concentration in leaf tissues  

Microsoft Academic Search

Phosphorus is an essential mineral macronutrient for plant growth and development. Although it can be found in soils in different mineral forms, its low solubility decrease its availability for plants; the nutri- ent should be added to crops as fertiliser. World sources of P are limited and in the near future they will suffer a remarkable decrease. Using P solubiliser

Jorge Cordero Elvia; Patricia Ortega-Rodés; Eduardo Ortega

2008-01-01

404

In-planta detection and monitorization of endophytic colonization by a Beauveria bassiana strain using a new-developed nested and quantitative PCR-based assay and confocal laser scanning microscopy.  

PubMed

Beauveria bassiana strain 04/01-Tip obtained from larvae of the opium poppy stem gall Iraella luteipes endophytically colonizes opium poppy plants and protect it against this pest. Development of a specific, rapid and sensitive technique that allows accurately determining the process and factors leading to the establishment of this strain in opium poppy plants would be essential to achieve its efficient control in a large field scale. For that purpose in the present study, species-specific primers that can be used in conventional or quantitative PCR protocols were developed for specifically identification and detection of B. bassiana in plant tissues. The combination of the designed BB.fw/BB.rv primer set with the universal ITS1-F/ITS4 primer set in a two-step nested-PCR approach, has allowed the amplification of up to 10fg of B. bassiana. This represented an increase in sensitivity of 10000- and 1000-fold of detection than when using the BB.fw/BB.rv primers in a single or single-tube semi-nested PCR approaches, respectively. The BB.fw and BB.rv primer set were subsequently optimized to be used in real time quantitative PCR assays and allowed to accurately quantify B. bassiana DNA in different plant DNA backgrounds (leaves and seeds) without losing accuracy and efficiency. The qPCR protocol was used to monitor the endophytic colonization of opium poppy leaves byB. bassiana after inoculation with the strain EABb 04/01-Tip, detecting as low as 26fg of target DNA in leaves and a decrease in fungal biomass over time. PCR quantification data were supported in parallel with CLMS by the monitoring of spatial and temporal patterns of leaf and stem colonization using a GFP-tagged transformant of the B. bassiana EABb 04/01-Tip strain, which enabled to demonstrate that B. bassiana effectively colonizes aerial tissues of opium poppy plants mainly through intercellular spaces and even leaf trichomes. A decline in endophytic colonization was also observed by the last sampling times, i.e. from 10 to 15days after inoculation, although fungal structures still remained present in the leaf tissues. These newly developed molecular protocols should facilitate the detection, quantification and monitoring of endophytic B. bassiana strains in different tissues and host plants and would help to unravel the factors and process governing the specific endophytic association between opium poppy and strain EABb 04/01-Tip providing key insights to formulate a sustainable strategy for I. luteipes management in the host. PMID:23851123

Landa, B B; López-Díaz, C; Jiménez-Fernández, D; Montes-Borrego, M; Muñoz-Ledesma, F J; Ortiz-Urquiza, A; Quesada-Moraga, E

2013-10-01

405

Analysis of Two in Planta Expressed LysM Effector Homologs from the Fungus Mycosphaerella graminicola Reveals Novel Functional Properties and Varying Contributions to Virulence on Wheat1[W][OA  

PubMed Central

Secreted effector proteins enable plant pathogenic fungi to manipulate host defenses for successful infection. Mycosphaerella graminicola causes Septoria tritici blotch disease of wheat (Triticum aestivum) leaves. Leaf infection involves a long (approximately 7 d) period of symptomless intercellular colonization prior to the appearance of necrotic disease lesions. Therefore, M. graminicola is considered as a hemibiotrophic (or necrotrophic) pathogen. Here, we describe the molecular and functional characterization of M. graminicola homologs of Ecp6 (for extracellular protein 6), the Lysin (LysM) domain-containing effector from the biotrophic tomato (Solanum lycopersicum) leaf mold fungus Cladosporium fulvum, which interferes with chitin-triggered immunity in plants. Three LysM effector homologs are present in the M. graminicola genome, referred to as Mg3LysM, Mg1LysM, and MgxLysM. Mg3LysM and Mg1LysM genes were strongly transcriptionally up-regulated specifically during symptomless leaf infection. Both proteins bind chitin; however, only Mg3LysM blocked the elicitation of chitin-induced plant defenses. In contrast to C. fulvum Ecp6, both Mg1LysM and Mg3LysM also protected fungal hyphae against plant-derived hydrolytic enzymes, and both genes show significantly more nucleotide polymorphism giving rise to nonsynonymous amino acid changes. While Mg1LysM deletion mutant strains of M. graminicola were fully pathogenic toward wheat leaves, Mg3LysM mutant strains were severely impaired in leaf colonization, did not trigger lesion formation, and were unable to undergo asexual sporulation. This virulence defect correlated with more rapid and pronounced expression of wheat defense genes during the symptomless phase of leaf colonization. These data highlight different functions for MgLysM effector homologs during plant infection, including novel activities that distinguish these proteins from C. fulvum Ecp6. PMID:21467214

Marshall, Rosalind; Kombrink, Anja; Motteram, Juliet; Loza-Reyes, Elisa; Lucas, John; Hammond-Kosack, Kim E.; Thomma, Bart P.H.J.; Rudd, Jason J.

2011-01-01

406

Cloning and expression analysis of NhL1, a gene encoding an extracellular lipase from the fungal pea pathogen Nectria haematococca MP VI (Fusarium solani f. sp. pisi) that is expressed in planta.  

PubMed

The filamentous fungus Nectria haematococca (anamorph Fusarium solani f. sp. pisi) resides in soil, and attacks pea seedlings in the area of the underground epicotyl and upper tap root, causing foot rot disease. We detected lipase activity during in vitro growth of N. haematococca. Subsequently, a lipase gene was cloned and functionally characterised by heterologous expression in Saccharomyces cerevisiae. The full-length cDNA of 1152 bp was cloned using a 3' RACE-PCR approach coupled with cDNA library screening. The genomic clone, comprising an ORF of 999 bp interrupted by two introns of 56 and 64 bp, was isolated from a newly constructed lambda phage library. Analysis of the deduced protein sequence revealed the presence of a typical signal peptide at the N-terminus, and of the three conserved amino acids forming the active site of lipases. The lipase of N. haematococca has a low degree of similarity to the lipases from Humicola lanuginosa (37.2%), Rhizomucor miehei (21.6%), Rhizopus delemar (23.1%), Rhizopus niveus (25.9%), and to mono- and diacylglycerol lipase from Penicillium camembertii (30.8%), and very high similarity (94.6%) to a lipase from Fusarium heterosporum. The lipase from N. haematococca shows maximal activity at 37 degrees C and pH 8.0. Based on Southern analysis, the lipase clone represents a single-copy gene in N. haematococca. Expression analysis was performed by RT-PCR. In vitro, the lipase gene shows a low basal expression, but is highly inducible by lipase substrates, and repressed by glucose. During plant infection, transcripts of this fungal lipase gene were detected 4, 8, and 10 days after infection. PMID:11361331

Nasser Eddine, A; Hannemann, F; Schäfer, W

2001-04-01

407

Importancia de las plantas medicinales en el autocuidado de la salud en tres caseríos de Santa Ana Trujillo, Venezuela. The importance of medicinal plants in health care in three small villages of the Santa Ana county at Trujillo state, Venezuela  

Microsoft Academic Search

In order to gather some information about the importance of medicinal plants in the primary health care, the use of plants in three small villages of the Santa Ana county, Pampán municipality at Trujillo State, Venezuela, was quantitatively analyzed. To do this, a local epidemiology diagnosis was carried out and the etnopharmacological information obtained was recorded using the TRAMIL survey.

TEOLINDA CARRILLO-ROSARIO Y GLENDA

408

Methodology for producing 100 tons of fuel peat for a cement plant test burn. Metodologia para producir 100 toneladas de turba combustible para una prueba de quema en uns planta de cemento  

SciTech Connect

As a part of the Agency for International Development-funded cooperative project between Los Alamos and Costa Rica, the burning characteristics of Costa Rican peat were to be tested in an application. The cement plant owned by Industria National de Cemento in Cartago has a capability to handle solid fuel and was chosen for the burn demonstration. The Jungle No. 1 Peat Deposit near El Cairo was chosen as the site of the peat excavation. This peat production methodology study covers project site selection, installation of an access road and clearing of the jungle vegetation, removal of an upper layer of organic peat, excavation of fuel-grade peat, transport of the peat to the drying site, and drying and stockpiling of the finished product. As of this date the peat removal for the demonstration project has been started, and a description of the operation is included as an appendix to this paper. 10 figs.

Allen, A.B.; Malavassi, L.; Ramirez, O.; Thayer, G. (Allen (Andrew), Plymouth, NC (USA); RECOPE, San Jose (Costa Rica); Los Alamos National Lab., NM (USA))

1989-05-01

409

Interplay of light and temperature during the in planta modulation of C4 phosphoenolpyruvate carboxylase from the leaves of Amaranthus hypochondriacus L.: diurnal and seasonal effects manifested at molecular levels  

PubMed Central

The interactive effects of light and temperature on C4 phosphoenolpyruvate carboxylase (PEPC) were examined both in vivo and in situ using the leaves of Amaranthus hypochondriacus collected at different times during a day and in each month during the year. The maximum activity of PEPC, least inhibition by malate, and highest activation by glucose-6-phosphate were at 15.00?h during a typical day, in all the months. This peak was preceded by maximum ambient light but coincided with high temperature in the field. The highest magnitude in such responses was in the summer (e.g. May) and least in the winter (e.g. December). Light appeared to dominate in modulating the PEPC catalytic activity, whereas temperature had a strong influence on the regulatory properties, suggesting interesting molecular interactions. The molecular mechanisms involved in such interactive effects were determined by examining the PEPC protein/phosphorylation/mRNA levels. A marked diurnal rhythm could be seen in the PEPC protein levels and phosphorylation status during May (summer month). In contrast, only the phosphorylation status increased during the day in December (winter month). The mRNA peaks were not as strong as those of phosphorylation. Thus, the phosphorylation status and the protein levels of PEPC were crucial in modulating the daily and seasonal patterns in C4 leaves in situ. This is the first detailed study on the diurnal as well as seasonal patterns in PEPC activity, its regulatory properties, protein levels, phosphorylation status, and mRNA levels, in relation to light and temperature intensities in the field. PMID:21045006

Avasthi, Uday K.; Izui, Katsura; Raghavendra, Agepati S.

2011-01-01

410

REFLECTIVIDAD Y ABSORTIBIDAD DE LA RADIACIÓN EN TRES DENSIDADES DE PLANTA Y SU RELACIÓN CON EL RENDIMIENTO DE MAÍZ (VARIEDAD CAFIME) RADIATION REFLECTIVITY AND ABSORPTIVITY IN THREE PLANT DENSITIES AND ITS RELATION TO CORN YIELD (CAFIME VARIETY)  

Microsoft Academic Search

An experiment was carried out to evaluate total solar radiation and photosynthetic active radiation reflectivity and absorptivity in three plant densities (6.9, 8.9, and 12.5 plants m? ? ? ? ?2) of CAFIME variety corn (Zea mays L.) and their relations with plant growth and yield. Reflectivity and absorptivity of the crop canopy in the plant densities was evaluated by

Alejandro Zermeño-González; José A. Montemayor-Trejo; Juan Munguía-López; Luis Ibarra-Jiménez; Martín Cadena-Zapata

2005-01-01

411

Medicinal ethnobotany in Huacareta (Chuquisaca, Bolivia)  

PubMed Central

Background The aim of this study was to document the types of diseases treated by the use of medicinal plants, their main applications and also to have a report of the major diseases treated at the Hospital of San Pablo de Huacareta (Chuquisaca Bolivia). Methods We conducted semi-structured interviews on the use medicinal plants with 10 local informants, and categorized the kinds of diseases treated by traditional medicine. We obtained reports of cases treated at the Hospital of Huacareta in order to compare the use frequency of traditional medicine and allopathic medicine for the treatment of recurrent diseases in the area. Results Our survey identified 258 traditional medicine uses, spanning a total of 13 diseases categories and including 91 native and exotic plant species and one unidentified sample plant type. Gastrointestinal disorders (55%) were most frequently treated with medicinal plants, followed by afflictions of the musculoskeletal system (25%) and dermatological disorders (24%). Hospital information indicates that the most common diseases are acute respiratory infections (47%) and acute diarrheal diseases (37%). The herbal remedies were mostly used in the form of teas and decoctions. The informants used mainly native plant species, although exotic species has been introduced to the pharmacopoeia. Conclusions The treatment of gastrointestinal disorders is the primary objective of the medical ethnobotany of the inhabitants of Huacareta, while respiratory system diseases are mostly treated in the hospital. Looking at the data from the Hospital records we can infer that gastrointestinal disorders are among the most common diseases in the study area. For most respondents, traditional medicine is a reliable choice for the care of their illnesses. However, the preference of the population for either traditional medicine or allopathic medicine needs to be clarified in future comparative studies to obtain more convincing results. The results presented can be used as a base for subsequent work related to traditional medicine and its contribution to allopathic medicine in San Pablo de Huacareta. Resumen Introducción El objetivo del presente estudio fue documentar los tipos de enfermedades tratadas mediante el uso de plantas medicinales, sus aplicaciones principales y también tener un reporte de las enfermedades mayormente atendidas en el Hospital de San Pablo de Huacareta (Chuquisaca, Bolivia). Métodos Se realizaron encuestas semiestructuradas a 10 informantes locales anotando los usos atribuidos a sus plantas medicinales, se agruparon las plantas por categorías de enfermedades tratadas en la medicina tradicional. Se obtuvieron reportes de casos tratados en el Hospital de Huacareta para poder relacionar el tratamiento de enfermedades recurrentes en la zona entre la medicina tradicional y la medicina occidental. Resultados Se reportaron 91 especies nativas y exóticas, además de un espécimen indeterminado exótico que intervienen en un total de 258 aplicaciones medicinales, las cuales son empleadas en un total de 13 categorías de enfermedades. Los desórdenes gastrointestinales (55%) son mayormente tratados mediante plantas medicinales, seguidas de las afecciones al sistema esqueleto-muscular (25%) y enfermedades dermatológicas (24%). La información del Hospital indica que las enfermedades más frecuentes son Infecciones Respiratorias Agudas (47%) y Enfermedades Diarreicas Agudas (37%). Los remedios vegetales se emplean en forma de infusiones y cocciones principalmente. Se emplean mayormente plantas nativas, también se introdujo en la farmacopea médica el uso de plantas exóticas al lugar. Conclusiones El tratamiento de trastornos gastrointestinales constituye el objetivo primordial de la etnobotánica médica de los habitantes de Huacareta, las enfermedades del sistema respiratorio, son mayormente tratadas en el Hospital. Observando los datos del libro de consultas del Hospital, se puede inferir que los desórdenes gastrointestinales

2012-01-01

412

La Convencin sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES, por sus siglas en ingls) es un acuerdo internacional firmado por  

E-print Network

garantizar que el comercio internacional de animales y plantas no amenace su supervivencia en la naturaleza. Los animales o plantas enu- merados en CITES que son tomados de alta mar --definido como "el entorno

413

La Convencin sobre el Comercio Internacional de Especies Amenazadas de Fauna y Flora Silvestres (CITES, por sus siglas en ingls) es un acuerdo internacional firmado  

E-print Network

garantizar que el comercio internacional de animales y plantas silvestres no amenaza su supervivencia en la naturaleza. Los animales o plantas enumerados en CITES que son tomados de alta mar ­ definida como «el

414

A .--We conducted winter censuses of two short-distance migrants, Hermit Thrushes (Catharus gu atus) and Yellow-rumped Warblers (Dendroica coronata), over seven years in five  

E-print Network

THRUSHES (CATHARUS GUTTATUS) AND YELLOW-RUMPED WARBLERS (DENDROICA CORONATA) IN SOUTH CAROLINA The Auk 121A .--We conducted winter censuses of two short-distance migrants, Hermit Thrushes (Catharus gu atus, en cinco ambien- tes diferentes, de dos migrantes de corta distancia, Catharus gu atus y Dendroica

McCarty, John P.

415

ANLISIS DE ESCENARIOS PARA RECONOCIMIENTO BIOMTRICO A  

E-print Network

MMW. En concreto se realizan experimentos de reconocimiento facial a corta, media y larga distancia adquisición de imágenes en MMW. En concreto el artículo realiza un análisis de tres escenarios para

Autonoma de Madrid, Universidad

416

Curso de posgraduac~ao em Astrofisica Prova de admiss~ao  

E-print Network

, pergunta-se: qual m´inima dist^ancia deve separar dois pontos sobre a superf´icie lunar para que estes´ermicos - = Wciclo / QA 5 #12;onde Wciclo ´e o trabalho realizado em um ciclo de funcionamento do motor e QA ´e

417

Mercado telefónico en México: diez años después de la privatización de Telmex  

Microsoft Academic Search

El sector de las telecomunicaciones en México experimentó una profunda transformación durante la década de los años noventa: el monopolio público telefónico fue privatizado (1990), se emitió una nueva ley del sector (1995), se creó un nuevo ente regulador (1996) y se abrió a la competencia el segmento de larga distancia (1997). El cambio estructural en el sector trajo consigo

Leonardo E. Torre Cepeda; Armando López Velazco

2000-01-01

418

Internet, Multimedia and Virtual Laboratories in a 'Third World' Environment.  

ERIC Educational Resources Information Center

Describes the development of low-cost multimedia courses and materials for use on the Internet, as well as virtual laboratories, at the Universidad Estatal a Distancia (Costa Rica). Explains how simultaneous production of traditional printed materials and online courses, outsourcing, and the use of HTML and Java can reduce costs for developing…

Monge-Najera, Julian Antonio; Rivas Rossi, Marta; Mendez-Estrada, Victor Hugo

2001-01-01

419

Some Social Implications of Distance Education.  

ERIC Educational Resources Information Center

Social implications of distance education at the university level are considered, based primarily on the case of La Universidad Estatal a Distancia (UNED) of Costa Rica. UNED, which is Costa Rica's attempt to implement Great Britain's open university philosophy of education, was developed in response to the following needs: to provide…

Borden, George A.

420

Ser entomlogo Juan F. Barrera1  

E-print Network

especial, disfrutábamos aquel relato sobre un oso enorme que raptó a dos niños en la orilla del río. En despavorida aún a kilómetros de distancia ¡Y vaya aquella escena donde, finalmente, el oso rugía acorralado

Bor, Gil

421

INTRODUCTION Mediterranean coastal areas are threatened by  

E-print Network

-crested coastal defence structures, epibiota, community composition. RESUMEN: ESTRUCTURAS DE BAJA COTA (EBC) PARA creciente de construcción de Estructuras de Baja Cota (EBC) para la defensa costera con el fin de relación con el tipo de costa que rodea las estructuras (arena o rocas), la distancia a la costa rocosa

Martin, Daniel

422

Club de Astronomia de Cimat Segunda Sesion  

E-print Network

Messier, 1764. 3. Galaxias M105: tipo: galaxia el´iptica; constelaci´on: Leo; magnitud 9.3; di- mensiones 5,4 � 4,8 ; distancia 26 millones AL; descubridor: Pierre Mechain, 1781. M81: tipo: galaxia espiral: Johan Bode, 1744. M82: tipo: galaxia irregular; constelaci´on: Osa Mayor; magnitud 8.4; dimensiones 11

Bor, Gil

423

Effect of different levels of technology upon expected yields, costs, and returns for major crops in Diamante Departamento, Entre Rios province, Argentina  

E-print Network

'!. tcchno3 ogr cocr! ared rci h 101: l=vel ot techua!, c, gy 133 ovor ca. "?'1 e!c", Bus . . . 1for; ra". '. !1 sc ghu! ;. 0;"o. e i'ro. : the . i o; le; e'. I nf . !&. -. . 10&-, y 't, a r !1 Q BI& t, , t. evc3. 01 sec 1!lola, 'r' xix LI ST OF F I GURE...'!. tcchno3 ogr cocr! ared rci h 101: l=vel ot techua!, c, gy 133 ovor ca. "?'1 e!c", Bus . . . 1for; ra". '. !1 sc ghu! ;. 0;"o. e i'ro. : the . i o; le; e'. I nf . !&. -. . 10&-, y 't, a r !1 Q BI& t, , t. evc3. 01 sec 1!lola, 'r' xix LI ST OF F I GURE...

Albarracin, Ernesto Oscar

2012-06-07

424

Modlisation des relations entre la variabilit de la frquence cardiaque et les pathologies infectieuses chez 18 nageurs lites durant 3 saisons. Effets de la saison et du  

E-print Network

'activité autonome, estimée par la mesure de la variabilité de la fréquence cardiaque (VFC), et les pathologies'infections ont été rapportés chaque semaine par un médecin. Les mesures de VFC ont été réalisées dans des conditions similaires durant huit minutes en décubitus et en orthostatisme. La VFC a été évaluée suivant les

Boyer, Edmond

425

A formulação da nova política de saúde no Brasil em tempos de democratização : entre uma conduta estatista e uma concepção societal de atuação política  

Microsoft Academic Search

O presente artigo tem por objetivo traçar o perfil dos atores constitutivos do movimento de saúde no Brasil a partir de meados da década de 70, focalizando seus aportes institucionais, nexos organizativos e articulações discursivas, com vistas a aferir o papel destes atores na formulação da nova política nacional de saúde no período da democratização. Como parte deste objetivo, pretendemos

Ana Maria Doimo; Marta M. Assumpção Rodrigues

426

Différences de mode de vie entre les filles et les garçons de 8 à 14 ans : résultats de l’étude FLVS II  

Microsoft Academic Search

Childhood obesity increases in our society. Comprehension of nutritional behaviors is very important for prevention. This work describes 278 children from the Fleurbaix Laventie Ville Santé II study. (FLVS II). Food consumption, food preferences, activity during meals but also body weight perception, sleep, activity out of school was presented. Among children, there are a lot of differences between girls and boys.

V Deschamps; J.-M Borys

2004-01-01

427

Color\\/race inequalities in oral health among Brazilian adolescents* Cor\\/raça e desigualdades em saúde bucal entre adolescentes brasileiros  

Microsoft Academic Search

This study assessed oral health outcomes (perceived dental treatment need, untreated dental caries, gingival bleeding, periodontal pockets, and pain in teeth and gums), in relation to color\\/race inequalities among adolescents in each Brazilian region. The database included dental examination and interview of 16,833 15-19-year-old ado- lescents, surveyed by the Brazilian health authority, from May 2002 to October 2003, in accordance

João Luiz Bastos; Maria da Luz; Karen Glazer Peres; Marco Aurélio Peres

2009-01-01

428

Proteinúria na fibrose cística: possível correlação entre genótipo e fenótipo renal* Proteinuria in cystic fibrosis: a possible correlation between genotype and renal phenotype  

Microsoft Academic Search

Objective: To assess proteinuria in patients with cystic fibrosis (CF), and to correlate proteinuria with genotype, CF-related diabetes and disease severity. Methods: A prospective study was carried out over a six-month period and involving 22 CF patients. After the collection and analysis of 24-h urine samples, the patients were divided into two subgroups: protein excretion < 150 mg\\/day (low-proteinuria); and

Jessica Cemlyn-Jones; Fernanda Gamboa

429

Associação entre os polimorfismos dos genes MBL2, TGF-?1 e CD14 com a gravidade da doença pulmonar na fibrose cística  

Microsoft Academic Search

Objective: To identify associations between genetic polymorphisms (in the MBL2, TGF-?1 and CD14 genes) and the severity of the lung disease in patients with cystic fibrosis (CF), as well as between the presence of ?F508 alleles and lung disease severity in such patients. Methods: This was a cross-sectional cohort study, based on clinical and laboratory data, involving 105 patients with

Elisangela Jacinto de Faria; Isabel Cristina Jacinto de Faria; José Dirceu Ribeiro; Antônio Fernando Ribeiro; Gabriel Hessel; Carmen Sílvia Bertuzzo

2009-01-01

430

Les gnes architectes sont chargs d'organiser les structures du corps pendant le dveloppement embryonnaire. Certains d'entre eux, les  

E-print Network

activés en deux vagues successives, permettant la formation du bras, puis celle de la main. Une équipe gènes Hoxd avec deux domaines de régulation adjacents aboutissent à l'élaboration du bras et de la main structures qui vont apparaître: d'abord les élé- ments de l'épaule, puis ceux du bras, pour finir avec les

Halazonetis, Thanos

431

Les gnes architectes sont chargs d'organiser les structures du corps pendant le dveloppement embryonnaire. Certains d'entre eux, les  

E-print Network

activés en deux vagues successives, permettant la formation du bras, puis celle de la main. Une équipe Hoxd avec deux domaines de régulation adjacents aboutissent à l'élaboration du bras et de la main structures qui vont apparaître: d'abord les élé- ments de l'épaule, puis ceux du bras, pour nir avec les

Halazonetis, Thanos

432

A CORRELAÇÃO ENTRE O NÍVEL DE CIRCUNFERÊNCIA DE CINTURA E O GRAU DE ATIVIDADE FÍSICA The correlation between waist circumference level and physical activity degree  

Microsoft Academic Search

Obesity prevalence has increased at alarming rates in all parts of the world, being considered as a global epidemic. The physical activity is the most variable component in the daily energy cost. Due to this, the aim of the study was to correlate physical activity degree with waist circumference level, verifying if more physically active people have less waist circumference.

Marcus Vinicius; Accetta Vianna; Ignácio A. Seixas-da-Silva; André Luiz Marques Gomes

433

PROCEDURE D'ENTRE DANS UNE DEMARCHE DE VALIDATION DES ACQUIS DE L'EXPERIENCE A L'UNIVERSIT D'AVIGNON  

E-print Network

devrait justifier d'au moins 1950h de face-à-face pédagogique. Joindre un C.V et un courrier stipulant réponse par courrier postal et/ou par courrier électronique si vous nous avez communiqué votre adresse

Naud Frédéric

434

Sur un argument d'analogie entre l'activit universitaire des juristes et des mdecins Eric MILLARD MLANGES D. LOCHAK (2007)  

E-print Network

universités à dominante juridique et politique a adressé au Premier ministre un courrier3 , dont il a assuré une large publicité en le diffusant dans toutes les facultés de droit4 . Ce courrier reprend notamment de la nature des fonctions. 3 Courrier du 5 décembre 2005 adressé au Premier Ministre. 4 Courrier du

Paris-Sud XI, Université de

435

Entre o capa verde e a redenção : a cultura do trabalho com o agave nos Cariris Velhos (1937-1966, Paraíba).  

E-print Network

??Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Humanas, 2006. Neste estudo analiso os significados que os trabalhadores do agave conferiram as suas experiências no trabalho… (more)

Nunes, Mariângela de Vasconcelos

2006-01-01

436

Se identifica una relación entre la falta de exámenes de detección y una gran parte de los casos de cáncer de seno en la etapa avanzada  

Cancer.gov

Los autores de un estudio publicado el 20 de octubre de 2004 en la revista Journal of the National Cancer Institute1? declaran que las dos prioridades principales del sistema de salud deben ser aumentar el porcentaje de exámenes de mamografía e invertir en investigaciones que mejoren la tecnología para detectar el cáncer de seno.

437

Un estudio financiado por los Institutos Nacionales de la Salud (NIH) muestra reducción en la mortalidad entre hombres con cáncer de próstata en grado intermedio:  

Cancer.gov

Terapia hormonal por corto tiempo administrada en combinación con radioterapia a hombres con cáncer de próstata en estadio inicial aumentó sus posibilidades de vivir más en comparación con tratamiento de radioterapia sola, según un estudio clínico patrocinado por el NCI. Los beneficios del tratamiento combinado se limitaron principalmente a pacientes con enfermedad de riesgo intermedio y no se observaron en hombres con cáncer de próstata de riesgo bajo, indican los investigadores.

438

Relación entre Condiciones de Suelo y Manejo de Huertas de Nogal Pecanero Carya illinoensis Koch con la Dinámica de la Pudrición Texana, causada por Phymatotrichum omnivorum Duggar  

Microsoft Academic Search

From 1995 to 1998, 26 plots of three ha each were selected in commercial walnut orchards. The objective of the survey was to relate the dynamics of Phymatotrichum root rot with orchard management and soil condition. The management variables were: age of the trees, plantation distance, trees\\/ha, pest management, number of irrigations and incidence of diseased trees (in 1995); for

José Alfredo Samaniego-Gaxiola; Teodoro Herrera-Pérez; Jesús Santamaría-César

2001-01-01

439

Reação entre fenilnitrometanos e enoato derivado do D-manitol na presença de TBAF ou DBU: adição conjugada sin-seletiva e reação de NEF consecutiva  

Microsoft Academic Search

selective conjugate addition - Nef reaction was observed when phenylnitromethane and oxygenated derivatives were allowed to react with an enoate derived from D-mannitol at rt in the presence of TBAF or DBU. While nitro-adducts predominate after 4h of reaction, the corresponding ketones were the main products after 12-24h of reaction. The Nef reaction occurred without racemization of the stereogenic center

Ayres G. Dias; Vagner D. Pinho; Paulo R. R. Costa

2008-01-01

440

Liquefaction Evaluation for Rio Blanco Offstream Dam, Comparison Between Existing Methodologies Evaluación del Potencial de Licuación para la Represa de Río Blanco, Comparación entre Metodologías Existentes  

Microsoft Academic Search

This paper presents the liquefaction analysis conducted at the foundation of Rio Blanco Dam in Naguabo, Puerto Rico. The analyses follow a cyclic stress approach, and are based on CPT data. In addition, considering the location and the importance of Rio Blanco Dam, the assessment of the dynamic response of the soil deposits under strong motion excitation was an essential

A. L. Fernandez; A. R. Crumley

441

Sur le changement macrolinguistique survenu entre 1300 et 1900 dans le domaine d'oïl. Une étude diachronique d'inspiration dialectométrique1  

Microsoft Academic Search

With the supply of 4 figures and 24 closely interpreted dialectometrical maps, this paper analyses the\\u000alinguistic change of the geolinguistic deep structures in Northern France (Domaine d’Oïl) between 1300 and\\u000a1900. As a matter of fact, the result will show – with some well explainable exceptions – the great stability of\\u000athese deep structures.\\u000aThe two empirical bases are,

Hans Goebl

2008-01-01

442

Le roi Dom Pedro V et le paléontologue Alcide d’Orbigny : un épisode des relations scientifiques entre le Portugal et la France  

Microsoft Academic Search

This communication comprises a presentation, followed by a chronological table about the young King of Portugal, D. Pedro V (born in Lisbon, 1837; proclaimed King in 1853; died in Lisbon, 1861) and some of his relationships to Palaeontology. Pedro V had a deep interest in Science and the development of his country. He was a naturalist, a connoisseur in Ornithology and Conchology,

Miguel Telles Antunes; Philippe Taquet

2002-01-01

443

Características clínico-patológicas de las pacientes con diagnóstico de embarazo ectópico en el Hospital Nacional Edgardo Rebagliati Martins entre 1998 y 2002  

Microsoft Academic Search

SUMMARY Objectives: To determine the clinical and pathologic characteristics of ectopic pregnancy carriers at Hospital Nacional Edgardo Rebagliati Martins (ERMH) between 1998 and 2002. Matherial and Methods: In a descriptive, retrospective, and transversal study we included 203 patients with ectopic pregnancy, admitted between January 1998 and December 2002 at ERMH. Results: The frequency was 0.55%. Most of patients were between

Rebagliati Martins

444

VI Simpsio Brasileiro de Solos No Saturados 2007/ Salvador-Bahia 421 Relao Entre a Resistncia a Trao Obtida via Ensaio  

E-print Network

the diametrical compression test or the Brazilian test as described by Krishnayya & Eisenstein (1974), Maciel (1991); Das et al. (1995) e Favaretti (1995). The Brazilian test is performed applying a compression de resistência à tração de um solo obtidos usando o ensaio de compressão diametral, ou ensaio

Zornberg, Jorge G.

445

Dialogue essais-modle pour l'interprtation des liens entre mesure d'auto-chauffement sous chargement cyclique et fatigue polycyclique  

E-print Network

. It is based on the using of self-heating measurements under cyclic loadings. The validation of this approach bien le calcul des pièces à la fatigue que la compréhension des mécanismes microstructuraux qui

446

Un score individuel de reconnaissance d'une série de stimuli intermédiaires entre deux sources : la perception catégorielle des expressions faciales  

Microsoft Academic Search

Morphing is a computerized tool allowing the generation of pictures which are « hybrids » of two sources-pictures, in controlled proportions. Over the last decade, this tool did contribute greatly to the knowledge of mechanisms underlying facial expressions recognition. Especially, it appeared that categorical perception is involved. Indeed, while the physical variation from one source to the other is continuous and linear,

R. Bruyer; P. Granato; J.-P. Van Gansberghe

2007-01-01

447

Effets chroniques de faibles doses de carbonate de lithium chez la souris. Relations entre statut oxydant et modifications fonctionnelles et structurales des reins et du cerveau  

Microsoft Academic Search

Effects of daily injections of lithium carbonate (20, 40 or 80 mg\\/kg body weight) during 14 and 28 days were investigated in Wistar mice. Attention was paid (1) to changes in concentrations of lithium, creatinine and urea in serum, (2) to level of oxidative stress by measuring lipids peroxidation level and catalase, superoxide-dismutase and glutathione-peroxidase activities, and (3) to changes

Riadh Nciri; Mohamed Salah Allagui; Françoise Croute; Christian Vincent; Abdelfattah Elfeki

2008-01-01

448

TRANSFERTS DE POPULATIONS ENTRE LES NIVEAUX DE TRIPLET DE LA CONFIGURATION (5 s, 5 d) DE L'ATOME DE CADMIUM  

E-print Network

'ATOME DE CADMIUM EN PR�SENCE D'AZOTE B. LANIEPCE, et G. CREMER Laboratoire de Spectroscopie Atomique la configuration (5 s, 5 p) d'atomes de cadmium excités optiquement, en fonction de la pression d of the intensity of fluorescence radiation ((5 s, 5 p) ~ (5 s, 5 d)) from optically excited (5 s, 5 d) cadmium

Paris-Sud XI, Université de

449

Elementos de política, riesgos ante el cambio climático, complementariedad entre las FNCE y el sin, y costos indicativos de las FNCE  

Microsoft Academic Search

En este documento se presentan y analizan las experiencias internacionales en políticas para el desarrollo de las FNCE en la Unión Europea y en varios países de la Unión (Alemania, España y Croacia). También se presentan y analizan estas experiencias en varios países de América Latina (Méjico, Perú y Brasil). En el capítulo tercero, se analizan elementos de política en

Ernesto Torres; José Maria Rincón; Edinson Lozano

2011-01-01

450

Comparaison entre les différentes commandes d'un moteur asynchrone pour un véhicule électrique en vue de minimiser les pertes de l'onduleur  

NASA Astrophysics Data System (ADS)

The losses of an inverter supplying an induction motor are compared for different vector control and pulse width modulation strategies. The study is carried out in simulation. As a conclusion, an optimal control in terms of losses is determined. Les pertes par conduction et par commutation d'un onduleur alimentant un moteur asynchrone sont comparées pour différentes solutions de contrôle vectoriel et de modulation de largeur d'impulsions. L'étude est réalisée en simulation. En conclusion, une commande optimale au niveau des pertes est déterminée.

Papazian, J.-C.; Rognon, J.-P.; Roye, D.; Delbosc, Ph.

1998-04-01

451

DOSAGE DU RADON ET DU THORON CONTENUS DANS L'AIR ATMOSPHRIQUE APPLICATION A L'TUDE DE L'QUILIBRE RADIOACTIF ENTRE CES GAZ ET LEURS DESCENDANTS  

E-print Network

179 A. DOSAGE DU RADON ET DU THORON CONTENUS DANS L'AIR ATMOSPH�RIQUE APPLICATION A L'�TUDE DE L- tant une dépression de 20 cm de mercure. Calcul de l'activité recueillie dans le filtre de sortie. - On trouvera le principe du calcul dans la référence [1] ; nous résumons ici les résultats obtenns. , 10 CAS DU

Boyer, Edmond

452

Ttulo: Chave de pr-requisitos entre as disciplinas do Currculo do Curso de Zootecnia -Universidade Federal do Paran -2011 Qumica analtica  

E-print Network

07 PERÍODO 08 PERÍODO 09 Fase CQ080 Química analítica BA021 Anatomia dos animais Domésticos I BC027 CM024 Complementos de Matemática I BA022 Anatomia dos animais domésticos II BC022 Hist e Embriol

Paraná, Universidade Federal do

453

DETERMINAÇÃO DE PARÂMETROS NA RELAÇÃO ENTRE O REGULADOR E OS CONCESSIONÁRIOS DE TRANSMISSÃO DE ENERGIA ELÉTRICA: UMA ABORDAGEM PRINCIPAL-AGENTE  

Microsoft Academic Search

In order to stimulate the quality of the service, ANEEL introduced penalties in the contracts with the concessionaires of public services of transmission of electric energy in the case which the transmission facilities are turned off, be for accident or for maintenance. In this sense, a variable value was instituted whose amount is discounted of the transmission revenue. The value

Antonio Pérez Puente; Francisco S. Ramos

2005-01-01

454

Corrlations entre les proprits des dpts et les conditions de fonctionnement d'une installation de projection plasma : un exemple, l'alumine y  

E-print Network

métastable après projection. Abstract. 2014 The quality of a plasma sprayed coating is a complex function, to optimize the spraying process. Properties of alumina being well known, we have first studied this ceramic'une installation de projection plasma : un exemple, l'alumine y M. Vardelle, A. Vardelle, J. L. Besson et P

Paris-Sud XI, Université de

455

Family expectation, social adjustment and gender differences in a sample of schizophrenic patients Expectativa familiar, ajustamento social e diferenças entre os gêneros numa amostra de pacientes esquizofrênicos  

Microsoft Academic Search

A case series to study factors related to family expectation regarding schizophrenic patients was conducted in an out-patient setting in the city of S. Paulo, Brazil. Patients diagnosed as presenting schizophrenia by the ICD 9th Edition and having had the disease for more than four years were included in the study. Family Expectation was measured by the difference between the

Itiro Shirakawa; Jair J. Mari; Ana C. Chaves; Marcelo Hisatsugo

456

Autopercepção da imagem corporal entre estudantes de nutrição no Rio de Janeiro Self-perception of body image among nutrition students in Rio de Janeiro  

Microsoft Academic Search

Objective: To characterize risky eating habits and factors related to eating disorders among nutrition students in the city of Rio de Janeiro Methods: Sectional study with a segment of the population pointed out in literature as being at risk of developing eating disorders. The Bulimic Investigatory Test Edinburgh (BITE) questionnaire, the Eating Attitudes Test (EAT-26) questionnaire and a variable which

Maria Lucia Magalhães Bosi; Caroline Maia da Costa Morgado; Santos Costa; Rosemary Jane de Carvalho; Carvalho RJ

457

Relations entre la teneur en sélénium et celle de seize éléments dans Helminthia echioides et Trifolium repens se developpant sur sols argileux  

Microsoft Academic Search

Nous avons analysé la teneur en sélénium de sols argileux de la région de La Roche-Posay ainsi que celle deHelminthia echioïdes etTrifolium repens qui s'y développent. Sur trente emplacements, la concentration en Se total du sol varie de 1,7 à 4,5 ppm et le pH oscille de 6,1 à 7,2. La teneur en sélénium des plantes est élevée: de l'ordre

M. P. Arvy

1985-01-01

458

Relação entre diferentes indicadores antropométricos e a percepção da imagem corporal em idosas ativas Association between different anthropometric indicators and body image perceptions in active elderly  

Microsoft Academic Search

Background: The prevalence of body image dissatisfaction have grown, and relationships between self-image and different anthropometric indicators are not yet well known in many groups. Objective: Identify the relationship betwe- en body image perception and different anthropometric indicators among active elderly. Methods: Sixty-two elderly who are part of a hydro-gymnastics program for at least 5 years participated in the study.

Fe L den Pereira; Ferreti Borgatto; L uciane

459

une ftamme 2000 est de 10-2:; gramme, interm-diaire entre la masse de l'atome d'hydrogne (1 0-24)  

E-print Network

. est 4 (Il = 1) et celle de l'atome du ra- dium B environ 200, il est évident, d'après la nature, thorium D, actinium X et C, en mettant seu- lement à profit l'effet de recul. 1)'autres exemples de laboratoire de physique de Toronto. Un plateau de cuivre isolé A, dt i cm2 de surface environ, recouvert d

Paris-Sud XI, Université de

460

Les cahiers de L'iNriala recherche-juin2010-n0 EntrEtiEn avEc DaviD Simplot-ryl  

E-print Network

groupes de travail avec la grande distribution. la région nord-pas-de-calais s'est en outre dotée, depuis'objets par seconde). Cela ne va-t-il pas poser des problèmes en terme d'emploi des actuelles caissières? D. S (anact), etc. Mais les RFID ne concernent-elles pas une multitude d'autres applications? D. S.-R.: En

Boyer, Edmond

461

R l ti t i t t i l dRelations entre vivant et minral au cours des temps gologiques : approche par microscopie X  

E-print Network

rédox du fer sur les bactéries et à l'extérieur Distribution du degré d'oxydation 0.50 Extracellulaire'extérieur y Fer sur et en dehors des bactéries s'oxyde au cours du temps Miot et al. (2009) Geobiology, 7, 373-384 #12;Conclusions L'oxydation du Fer se fait dans la paroi des bactéries mais aussi à l

462

DOMINIOS SEDIMENTARIOS GENERADOS DURANTE EL PERÍODO EXTENSIONAL CRETÁCICO INFERIOR ENTRE CAZORLA Y HELLÍN (BÉTICAS EXTERNAS). SU IMPLICACI~N EN LA ESTRUCTURA ACTUAL  

Microsoft Academic Search

Basin analysis of the externa1 zones of the Betic Cordillera between Cazorla and Hellín applying stratigraphic and tectono-sedimentary criteria on the Kimmeridgian to Upper Albian sediments allowed to differentitate three sedimentary domains. These were named Meseta, Albacete and Prebetic, following previous models established more to the east. The study of lateral relationships of these domains evidence that they form severa1

L. Vilas; C. J. Dabrio; J. R. Peláez; M. García Hesnández

463

Tablas de adaptacin entre las titulaciones de Grado en Ingeniera Informtica, Grado en Ingeniera de Computadores y Grado en Ingeniera del Software al  

E-print Network

Videojuegos Idioma Moderno Idioma Moderno Estructuras de Datos Estructuras de Datos Estadística Estructuras de Datos Estructuras de Datos �tica, Legislación y Profesión Estadística Estadística Estructuras de Datos Estructuras de Datos Idioma Moderno

Rey Juan Carlos, Universidad

464

Relation entre la motivation au changement et les dimensions du Temperament and Character Inventory (TCI) de Cloninger chez des patients alcoolodépendants, dépressifs et anxieux sociaux  

Microsoft Academic Search

Practicing cognitive and behavioral therapy, one often observes a lack of readiness to change. This study seeks to identify factors tied to this lack of motivation: Dependence itself, temperament and character profile, affective disorders? How improve alcoholics’ inpatients readiness to change who have depressive and social anxiety disorders associated? To this end, we compared 12 separated alcoholics’ inpatients, with two

A.-V. Rousselet; C. Mirabel-Sarron; S. Rusinek; M. Hautekeete; F. Sgard; J.-D. Guelfi; F. Rouillon; M. Goudemand

2008-01-01

465

Relationship between PCBs in suspended and settled sediments from a coastal lagoon Relación entre PCBs en sedimentos suspendidos y depositados de una laguna costera  

Microsoft Academic Search

Polychlorinated biphenyl (PCB) congener concentrations and organic matter content were determined in 84 samples of suspended and settled sediments collected from six different locations in the Ria Formosa lagoon (Portugal). Total PCB (tPCB) concentrations were higher in the suspended matter (1.00-39.80 ng g -1 dw) than in the sediments (0.10-2.10 ng g -1 dw) and, in general, the same was

Luísa A. Barreira; Maria J. Bebianno; Stephen M. Mudge; Ana M. Ferreira; Clarisse I. Albino; Luís M. Veriato

2005-01-01

466

Estudo comparativo do consumo de oxigênio e limiar anaeróbio em um teste de esforço progressivo entre atletas profissionais de futebol e futsal  

Microsoft Academic Search

Comparative study of the oxygen consumption and anaerobic threshold in a progressive exertion test in professional soccer and indoor soccer athletes Oxygen consumption (VO2) has been very useful for the func- tional evaluation of athletes. Ergospirometry is a non-invasive pro- cedure used to evaluate the physical performance or the function- al ability of an individual, connecting the analysis of the

Cesar Pinto; Leal Junior; Fabiano de Barros Souza; Márcio Magini; Rodrigo Álvaro; Brandão Lopes Martins

467

Julgamento moral: estudo comparativo entre crianças institucionalizadas e crianças de comunidade de baixa renda com relação à emergência do sentimento de culpa  

Microsoft Academic Search

Guilt, an important affective aspect of moral development, has been used as one of its principal measures. In children, guilt perfects gradually being influenced by morality models and disciplinary methods to which are exposed (Harris, 1989). This study tried to verify possible differences in the emergence of guilt feeling among 32 male children (6-12 years old) coming from distinct groups,

Helga Loos; Sandra P. A Ferreira; Fabíola C. Vasconcelos

1999-01-01

468

La línea divisoria que une: Una exploración de la cultura híbrida en la región fronteriza entre México y los Estados Unidos  

Microsoft Academic Search

With the creation of our “modern world” came the ideology and system of nation-states. Land in its most natural and undivided condition was marked, fenced, walled, and mapped in order to give direct power of territory to a nation-state. The borderline between the United States and Mexico was established not so long ago, in 1857 after the US-Mexico War. The

Molly J Foye

2012-01-01

469

A HUMANIZAÇÃO NO ATENDIMENTO: INTERFACES ENTRE PSICOLOGIA DA SAÚDE E SAÚDE COLETIVA THE HUMANIZATION OF SERVICE: INTERFACES BETWEEN HEALTH PSYCHOLOGY AND COLLECTIVE HEALTH  

Microsoft Academic Search

From the moment the Sistema Único de Saúde (SUS) (Na- tional Health System), which is part of the Brazilian Fed- eral Constitution, was implanted, there were important changes in public health policies. These include actions for the improvement in the quality of life through atten- tion to subjects like mental health, work, housing and education. Working with the conception that

Fernanda Torres de Carvalho; Milena Nardini; Prisla Ücker Calvetti; Maria Estelita Gil

470

Cat?licos, fidelidade conjugal e AIDS: entre a cruz da doutrina moral e as espadas do cotidiano sexual dos adeptos1  

PubMed Central

Neste artigo discutimos a visão da Igreja Católica sobre sexualidade na interface com a epidemia do HIV/AIDS. Nossa reflexão está embasada em pesquisa etnográfica que envolveu dois meses de observação participante do cotidiano de católicos de um bairro popular da Região Metropolitana do Recife, além de contar com entrevistas a onze dos leigos engajados nos serviços religiosos da igreja do bairro e a oito sacerdotes que realizam seus trabalhos religiosos em outras localidades. Nelas abordamos diferentes temáticas relacionadas ao enfrentamento da epidemia da AIDS. Nesse contexto, conjugalidade e fidelidade se afiguram como importantes analisadores de como aqueles lidam com a epidemia, em uma variedade de re-descrições práticas e de re-interpretações conceptuais das assertivas do discurso moral religioso – ainda que, muitos impasses permaneçam em aberto em termos das prerrogativas da Igreja e seus possíveis rebatimentos na saúde sexual dos adeptos. PMID:21765650

Rios, Luis Felipe; de Aquino, Francisca Luciana; Munoz-Laboy, Miguel; Oliveira, Cinthia; Parker, Richard

2009-01-01

471

Hydraulic properties and scale effects investigation in regional rock aquifers, south-western Quebec, Canada  

NASA Astrophysics Data System (ADS)

This paper reports on the characterization of hydraulic properties of regional rock aquifers carried out within a groundwater resources assessment project in the St. Lawrence Lowlands of south-western Quebec. To understand the aquifer behavior at both the fracture level and at field scale, hydraulic investigations were carried out using various aquifer tests. The groundwater flow at the local scale is controlled mostly by the fracture system. Results of the constant-head injection tests show a weak decreasing trend of hydraulic conductivity with depth indicating that a major part of the groundwater flow occurs in the first meters of the rock sequence. At the regional scale, the equivalent porous media approach is applicable. The hydraulic conductivity measurements were correlated to the scale of the aquifer tests expressed with the investigated aquifer volume. A simple interpolation procedure for the hydraulic conductivity field was developed based on the distance between field measurements and the tested aquifer volumes. The regional distribution of the hydraulic conductivity for the major fractured aquifer units indicates that dolostone is the most permeable whereas sandstone and crystalline rocks are the least permeable units. Este artículo trata de la caracterización de las propiedades hidráulicas en acuíferos regionales rocosos, la cual se llevó a cabo dentro del proyecto de evaluación de los recursos de agua subterránea en St. Lawrence Lowlands al suroeste de Quebec. Para entender el comportamiento del acuífero tanto a nivel de fractura como a escala del campo, se ejecutaron investigaciones hidráulicas usando varias pruebas de acuífero. El flujo del agua subterránea a escala local está controlado principalmente por el sistema de fracturas. Los resultados de las pruebas de inyección con cabeza constante muestran una tendencia decreciente débil de la conductividad hidráulica con la profundidad, indicando que la mayor parte del flujo de agua subterránea sucede en los primeros metros de la secuencia rocosa. A escala regional se puede aplicar la aproximación equivalente de medios porosos. Las medidas de la conductividad hidrálica fueron comparadas con la escala de las pruebas del acuífero, expresadas con el volumen investigado del acuífero. Se desarrolló un proceso de interpolación simple para la conductividad hidráulica de campo, con base en la distancia entre las medidas de campo y los volúmenes probados del acuífero. La distribución regional de la conductividad hidráulica, para las unidades acuíferas fracturadas mayores, indica que la dolomita es más permeable mientras que la arenisca y las rocas cristalinas son las unidades menos permeables. L'article présente les propriétés hydrauliques d'un aquifère régional rocheux qui ont été mesurées dans le cadre d'un projet concernant l'estimation de la ressource en eau de la plaine de St. Lawrence située dans la partie sud-ouest de Quebec. Affin de comprendre le comportement de l'aquifère tant à l'échelle de fracture qu'à l'échelle régionale on a mené des investigations hydrauliques en utilisant des essais differents. À l'échelle locale l'écoulement est déterminé en principal par le système des fractures. Les résultats des essais d'injection au niveau constant ont montré une tendence de décroissance de la conductivité hydraulique avec la profondeur ce qui indique que l'écoulement ait lieu en principal dans les premiers mètres de la structure rocheuse. À l'échelle règionale on peut appliquer l'approche de milieux poreux equivalent. Les mesures de conductivité hydraulique ont été corrélées avec l'échelle des essais de pompage exprimée en termes de volume investigué de l'aquifère. On a mis au point une méthode simple d'interpolation pour le champ de la conductivité hydraulique basée sur la distance entre les essais in situ et les volume investigués de l'aquifère. La distribution règionale de la conductivité hydraulique montre que pour la majorité des unités de roche fracturé les plus perméable sont

Nastev, M.; Savard, M. M.; Lapcevic, P.; Lefebvre, R.; Martel, R.

472

Eco-hydrology: Groundwater flow and site factors in plant ecology  

NASA Astrophysics Data System (ADS)

Résumé En écologie végétale, le site est un concept central. Un site, c'est l'endroit où une espèce végétale ou une communauté de plantes se développe le site assure un ensemble de conditions dans lesquelles elles vivent. Dans un matériau homogène à l'origine, l'écoulement gravitaire d'une nappe influence les conditions du site par l'intermédiaire de la distribution spatiale des nutriments et d'autres composés chimiques associés. Les remontées d'eau peuvent tout spécialement produire et maintenir les conditions du site essentielles pour différentes espèces et communautés de plantes relativement rares. Les écologues ont porté une attention accrue à ces remontées d'eau, en sorte qu'une coopération avec les hydrologues en a résulté, avec l'émergence d'une discipline propre, l'éco-hydrologie, à la limite des deux domaines scientifiques et liée au concept de site. Aux Pays-Bas, une classification des types d'eau, basée sur l'histoire de l'eau souterraine à proximité de la surface, a été mise en oeuvre pour constituer une base nationale de données géographiques sur les remontées d'eau d'intérêt écologique. Des analyses des correspondances des données de cette base, portant sur l'existence de certaines espèces de plantes, montrent que dans les sols sableux pauvres du Pléistocène la remontée d'eau explique très bien la présence de certaines espèces et communautés, alors que, dans les plaines fluviales et les régions de polders à sols argileux riches, l'influence de la remontée d'eau est masquée par l'importance des caractéristiques des sols. En conclusion donc, certaines espèces de plantes peuvent être utilisées comme des indicateurs de la remontée d'eau dans des diagnostiques et des levés de terrain rapides, mais à condition de prendre en permanence des précautions sur les limites de l'approche. Resumen En ecología botánica un concepto de gran importancia es el de emplazamiento, definido como el lugar que proporciona unas condiciones de vida adecuadas que permiten el crecimiento de una especie o una comunidad botánica. En un material inicialmente homogéneo, el flujo subterráneo gravífico influencia las condiciones del emplazamiento variando la distribución espacial de los nutrientes y de otros agentes químicos relevantes. En especial, el flujo ascendente puede producir y mantener una serie de condiciones que son esenciales para algunas especies y comunidades de plantas relativamente raras. La especial atención hacia este fenómeno ha dado lugar a una cooperación entre ecologistas e hidrogeólogos y a la aparición de una nueva disciplina - eco-hidrología -, en la frontera de los dos campos científicos. En Holanda, se ha usado una clasificación sencilla de tipos de agua para crear una base de datos, a nivel nacional, de lugares donde la presencia de flujos ascendentes pueda ser de interés ecológico. El análisis de correspondencias entre esta base de datos y los tipos de plantas existentes muestra que en los suelos arenosos pobres del Pleistoceno los flujos ascendentes explican la presencia de algunas especies y comunidades de plantas. Por el contrario, en las llanuras fluviales y pólders, con suelos más arcillosos, la influencia de estos flujos es despreciable frente a la relativa a las propias características de los suelos. Se concluye que las especies botánicas se pueden usar como indicadores de la presencia de flujo ascendente sólo en campañas preliminares, pero que el método presenta grandes limitaciones para su extensión a casos generales.

Klijn, Frans; Witte, Jan-Philip M.

473

MA092 Geometria plana e analitica Comprimento da circunfer^encia -Area de superficies planas  

E-print Network

MA092 ­ Geometria plana e anal´itica Comprimento da circunfer^encia - ´Area de superf´icies planas uma volta: 2R = D 61, 5 cm Dist^ancia total: 10.000.000 cm N´umero de voltas: 10.000.000/(61, 5) 51 - IMECC)MA092 ­ Geometria plana e anal´itica Agosto de 2013 5 / 22 ´Areas Ret^angulo ´Area AR = b · h

Gomes, Francisco A. M.

474

Astrofsica Extragalctica y Cosmologa. Problemas y preguntas clave I.  

E-print Network

relación liga al corrimiento al rojo con el factor de escala del universo. 7. Dadas 3 galaxias A=1, en promedio, su altura se habría incrementado un factor 2 d. La galaxia Andrómeda está un factor 2 más alejada e. La galaxia Andrómeda está un factor ½ menos alejada f. La distancia Vía Láctea

Aretxaga, Itziar

475

Electroquimioterapia (EQT) aplicada a tumores Introduccin  

E-print Network

A Olaiz N. et all 2010 Modelos numéricos Pablo Turjanski. Densidad de corriente, Consumo de agua, porosidad. Distancia, Área, Difusión- migración, choque de frentes. Densidad de corriente, Consumo de agua Eléctrico In Vitro In VivoNP Látex Aparentemente el campo eléctrico mueve el agua. Dermis, 150Hz10kv, agua

Figueira, Santiago

476

Louvain-la-Neuve, lundi 24 octobre 2011 Recherche UCL  

E-print Network

pharmacologiques dans les plantes L'UCL participe au programme européen de recherche Pharma-Planta. Lancé en 2004 et à cultiver à grande échelle. Le défi pour Pharma-Planta était de passer de la validation d'anticorps obtenus de manière classique. D'autres aspects du programme de recherche Pharma-Planta ont également

Nesterov, Yurii

477

Segment-specific retention of a larval neuromuscular system and its role in a new, rhythmic, pupal motor pattern in Manduca sexta  

Microsoft Academic Search

At pupation in Manduca sexta, accessory planta retractor muscles and their motoneurons degenerate in segment-specific patterns. Accessory planta retractor\\u000a muscles in abdominal segments 2 and 3 survive in reduced form through the pupal stage and degenerate after adult emergence.\\u000a Electromyographic and electrophysiological recordings show that these accessory planta retractor muscles participate in a\\u000a new, rhythmic `pupal motor pattern' in which

D. J. Sandstrom

1998-01-01

478

Optimization of transient expression procedures in Catharanthus roseus and Arabidopsis thaliana for subcellular localization studies.  

E-print Network

??Dissertação de mestrado em Biotecnologia e Bio-Empreendedorismo em Plantas Aromáticas e Medicinais Nowadays, the availability of much gene sequence information demands the development of tools… (more)

Ribeiro, Diana Margarida da Costa

2010-01-01

479

Métodos de fitorremediação e biomonitorização com base em modelos experimentais aplicados ao ensino das ciências.  

E-print Network

??A presente dissertação de doutoramento tem como principais objetivos: identificar plantas aquáticas e semiaquáticas bioindicadoras e/ou fitorremediadoras de urânio (U), na Horta da Vilariça; reproduzir… (more)

Cordeiro, Cristina Guerreiro de Almeida

2013-01-01

480

Solanum nigrum L., a fine tool for phytoremediation of acetophenone.  

E-print Network

??Dissertação de mestrado em Biologia Molecular, Biotecnologia e Bioempreendedorismo em Plantas Organic pollutants of several industries constitute an environmental hazard because they may enter food… (more)

Moreira, José Tiago Teixeira de Sousa

2013-01-01

481

Entre silence et fracas : émergence et affirmation des luttes féministes dans les communautés juives orthodoxes en Israël (1970-2009)  

Microsoft Academic Search

Born in the wake of the Yom Kippur War in 1973, the Israeli feminist movement has focused on the deconstruction of national egalitarian myths as well as on charity to women in need in a militarized society. In this struggle, the movement, secular for the most part and sharply divided among various ethnic groups, has directed little of its energy

2010-01-01

482

Intercensal fertility change in Kenya: a study of regional differentials between 1969 and 1979/Changement intercensitaire de la fecondite au Kenya: une etude de differentiations regionales entre 1969 et 1976.  

PubMed

Kenya's population growth rates are now approaching 4% per year, due to increasing birth rates and declining death rates. A woman reaching menopause in 1969 had an average 7.6 births compared to a woman reaching menopause in 1979 with an average of 8.1 births. Also, the infant mortality rate dropped from 119/1000 in 1969 to 96/1000 in 1975. This study analyzes regional fertity differentials in Kenya between 1969 and 1979. Due to problems of data availability and reliability, only 2 fertility indices are used--the child-woman ratio and the lifetime total fertility rate for women age 15-49. Data reveal that the most significant determinants of regional fertility differences are the childhood mortality rate, female sterility or infecundity, and female education. However, if the analysis is confined to rural-urban differences, then other factors such as residential background, agte at marriage, divorce and separation, and marriage type and pattern also come into play. Also, socioeconomic variables such as contraceptive use, occupation, and income also play a role in creating rural-urban fertility differentials. Kenya can be divided into 3 broad regional belts of fertility behavior. The 1st zone is Kenya's coastal belt, which has a long history of urbanization and is predominantly Moslem. This zone has relatively low fertility. The 2nd belt of moderate fertility levels comprises Kenya's dry lands, the home of the nomadic and semi-nomadic tribes. The central highlands of Kenya and the Lake Victoria basin have extremely high fertility levels, partly due to their greater levels of socioeconomic development. PMID:12314431

Ayiemba, E H

1982-12-01

483

Comparison among pulmonary function test results, the Shwachman-Kulczycki score and the Brasfield score in patients with cystic fibrosis* Comparação entre provas de função pulmonar, escore de Shwachman-Kulczycki e escore de Brasfield em pacientes com fibrose cística  

Microsoft Academic Search

Objective: To study correlations among pulmonary function, chest radiology and clinical status in cystic fibrosis. Methods: A retrospective cross-sectional study was performed to evaluate chest X-rays and clinical charts of patients treated at the Hospital de Clínicas de Porto Alegre. Spirometry findings, Shwachman-Kulczycki (S-K) scores and Brasfield scores were analyzed. Results: The final sample consisted of 40 patients (mean age

Ivanice Duarte Freire; Fernando Antônio de Abreu; Manuel Ângelo de Araújo

2008-01-01

484

MUSKULOSKELETAL DISEASES, WORK AND LIFESTYLE AMONG PUBLIC WORKERS AT A HEALTH INSTITUTION ENFERMEDADES MÚSCULO-ESQUELÉTICAS, TRABAJO Y ESTILO DE VIDA ENTRE TRABAJADORES DE UNA INSTITUCIÓN PÚBLICA DE SALUD  

Microsoft Academic Search

This is a cross-sectional study developed with 651 workers of various occupations. They answered a questionnaire covering general, labor and lifestyle data, in addition to the Work Ability Index, which has been developed by researchers from Finland. In terms of socio- demographics, the analysis of the factors associated with the occurrence of musculoskeletal disorder revealed them to be female, older,

Maria Silvia Monteiro; Neusa Maria Costa Alexandre; Cinthia Mendes Rodrigues; R ELATO

485

Served meals include simple bud vase, standard house linen for your guest tables, china, flatware, glassware, dinner roll & artisan bread assortment with butter and margarine, salad, entre with Chef's pairing of vegetable & starch to compliment, house des  

E-print Network

Romaine Wedge with Bacon & Blue Cheese Vinaigrette Arugula with Tomato & Cucumber Juice Mixed Greens, Pecans, Braeburn Apples & Sweet Cream Vinaigrette with Shaved Sharp Cheddar Tatsoi & Spinach.00 per guest Breast of Chicken Stuffed with Dried Apricot, Raisins, Mushrooms & Spinach with Cider Glaze

Holsinger, Kent

486

Thématique P. Les rapports urbains-ruraux : conflits d'usage et cohabitation des activités. L'aménagement territorial de l'Aunis (France) ; entre conflits d'intérêts et concertation  

Microsoft Academic Search

*** ** Résumé : La présente communication vise à mettre en évidence la diversité des modalités d'anticipation utilisées par les acteurs décisionnels (les élus) pour assurer l'aménagement des territoires dont ils ont charge de gestion. En France, la loi relative à la solidarité et au renouvellement urbain de décembre 2000 instaure deux outils de gestion ; les Schémas de Cohérence

Luc Bossuet; François Leger; Roland Guy

487

Portrait des différences entre les genres dans le contexte de l'apprentissage de l'électricité en fonction de la certitude exprimée lors de la production de réponses  

Microsoft Academic Search

This exploratory research aims to describe changes in the “feeling-of-knowing” (FOK) experienced by high school students who are being introduced to the fundamental concepts of electricity through learning by discovery. The analysis focuses first on the initial state of boys and girls in terms of their prior experience and the perception they have of their abilities in science and technology,

Patrice Potvin; Martin Riopel; Patrick Charland; Julien Mercier

2011-01-01

488

Síntomas depresivos relacionados con la alteración de los ritmos circadianos. Concordancia entre la percepción de médicos y pacientes sobre prevalencia, impacto clínico y su respuesta a los fármacos antidepresivos actuales  

Microsoft Academic Search

This is a descriptive, transversal and multicenter study using self-administered surveys concurrently to collect the opinions of two groups (psychiatrists and patients) and discuss their disagreements.The scope of study are hospital services, outpatient centers, individual professional consultation and other assistance system, public or private, which provides psychiatric care in Spain. Participated in this study 319 psychiatrists and 957 patients with

Luis San Molina; José Manuel Montes-Rodríguez; Fernando Caballero-Martínez; Fernando Álvarez Lozano; Marta García Manrique

2011-01-01

489

Estudios de la Zona No Saturada del Suelo Vol. VII. F.J. Samper Calvete y A. Paz Gonzlez, 2005 INTERACCIN ENTRE LA EROSIN EN REGUEROS, CONTENIDO DE HUMEDAD EDFICA Y  

E-print Network

Estudios de la Zona No Saturada del Suelo Vol. VII. F.J. Samper Calvete y A. Paz González, 2005 345 mecanismos de control de la humedad del suelo por la erosión están relacionados con la formación de costras superficiales, la reducción de la rugosidad superficial del suelo y la evacuación eficiente de la escorrentía

Espigares, Tíscar

490

XXI CONGRESO LATINOAMERICANO DE HIDRÁULICA SÃO PEDRO, ESTADO DE SÃO PAULO, BRASIL, OCTUBRE, 2004 BALANCE TÉRMICO EN UN TRAMO DE RÍO, CASO DEL RÍO EBRO COMPRENDIDO ENTRE LA CENTRAL HIDROELÉCTRICA FLIX Y LA CENTRAL NUCLEAR DE ASCÓ (ESPAÑA)  

Microsoft Academic Search

River water temperature after a dam is conditioned by the reservoir. The case of regions with medirranean climate, special in summer, is frequently observed a significant decrease of the temperature in comparison with a river zone without the influence of a reservoir. This thermal unbalance in the river water is corrected and the water increase its temperature after the dam

Rafael Val Segura; Daniel Niñerola Chifoni; Joan Armengol Bachero; Josep Dolz Ripollés

491

L'evolution des obstacles aux echanges et les entreprises canadiennes : survie et disparition apres l'Accord de libre-echange entre le Canada et les Etats-Unis  

Microsoft Academic Search

Ce document permet d'examiner les consequences de l'evolution des obstacles aux echanges sur la survie des entreprises manufacturieres au Canada. Nous avons elabore un modele de Cournot a marches segmentes pour decrire les effets de la liberalisation des echanges sur des entreprises heterogenes exploitees dans diverses branches d'activite. Nous testons les previsions de ce modele empiriquement a l'aide de donnees

Jennifer Baggs

2004-01-01

492

Nonbreeding-Season Drivers of Population Dynamics in Seasonal Migrants: Conservation Parallels Across Taxa Facteurs hors reproduction intervenant sur la dynamique des populations de migrateurs saisonniers : analogie entre divers taxons  

Microsoft Academic Search

For seasonal migrants, logistical constraints have often limited conservation efforts to improving survival and reproduction during the breeding season only. Yet, mounting empirical evidence suggests that events occurring throughout the migratory life cycle can critically alter the demography of many migrant species. Herein, we build upon recent syntheses of avian migration research to review the role of non-breeding seasons in

Anna M. Calvert; Sandra J. Walde; Philip D. Taylor

2009-01-01

493

El Informe Anual a la Nación indica que la tasa de mortalidad por cáncer está bajando el doblesu enfoque especial examina el cáncer entre los indígenas americanos y los nativos de Alaska  

Cancer.gov

Según un nuevo informe de las principales organizaciones oncológicas de la nación, las tasas de mortalidad por cáncer disminuyeron en promedio 2,1 por ciento por año de 2002 a 2004; casi el doble de la disminución anual de 1,1 por ciento por año de 1993 a 2002. Estos resultados se encuentran en el "Informe Anual a la Nación sobre el Estado del Cáncer de 1975 a 2004. Preguntas y respuestas

494

Informe Anual a la Nación sobre el Estado del Cáncer entre 1975-2003 con una sección especial sobre el estado del cáncer en la población hispana o latina de los Estados Unidos: preguntas y respuestas  

Cancer.gov

La tendencia a largo plazo de las tasas de mortalidad por cáncer en general, que han ido bajando desde principios de los años noventa, se mantuvieron hasta 2003 para todas las razas y para ambos sexos combinados.

495

Vinculacion Entre La Educacion Y El Mundo Del Trabajo: Informe Final. (Coloquio Regional Caracas, Venezuela, Septiembre 2-6, 1985) = The Linkage Between Education and Employment: Final Report of the Regional Colloquium (Caracas, Venezuela, September 2-6, 1985).  

ERIC Educational Resources Information Center

At this regional colloquium 13 papers were presented concerning the relationship between education and employment. Themes addressed were: (1) the transformation of the workplace by technology and science; (2) the future of the disadvantaged population as a consequence of the technological revolution; and (3) the resulting changes in the education…

United Nations Educational, Scientific, and Cultural Organization, Santiago (Chile). Regional Office for Education in Latin America and the Caribbean.

496

La relation entre le niveau du salaire perçu et les transitions d'emploi à emploi en France : une remise en cause des modèles de recherche d'emploi ? Suivi d'un commentaire de Thierry Kamionka  

Microsoft Academic Search

[eng] Job-search theory has enjoyed a significant revival, . boosted by the work of Burdett and Mortensen (1998), who highlighted the fact that employees'on-the-job search behaviour influences the competition which makes itself felt, by way of salaries, between compa nies. The equilibrium is then characterised by a disper sion of salaries, including in the absence of worker or company heterogeneity.

Arnaud Chéron; Guoqing Ding; Thierry Kamionka

2008-01-01

497

Analyzing the time-to-detection – generation time relationship of Escherichia coli Análisis de la relación entre el tiempo de detección y el tiempo de generación de Escherichia coli  

Microsoft Academic Search

The relationship between the time-to-detection (TTD) and the generation time (GT) of Escherichia coli was studied under different pH values (4.5, 5.5, 6.5, and 7.4) and temperatures (30°C, 35°C, 37°C or 42°C). An adequate linear relationship was found between both parameters (R  = 0.899). The regression of the ratio ln(TTD\\/GT) only introduced the pH in the model. The validation of the

A. J. S. Eduardo; E. J. Quinto; M. J. Castro; M. T. Mora

2011-01-01

498

Particularits d'adoption des compteurs intelligents au Royaume-Uni et en Allemagne : entre marchs de comptage libralis et rgles mettre en place pour un rel smart grid intgr.  

E-print Network

marchés de comptage libéralisé et règles à mettre en place pour un réel smart grid intégré. Association maximiser les bénéfices d'un réel smart grid intégré dans lequel les compteurs sont un élément déterminant'une des composantes majeures des réseaux électriques intelligents ou smart grids. Selon la Directive

Paris-Sud XI, Université de

499

Aprs chaque nom de candidat, le nombre des voix obtenues est indiqu entre crochets [xxx]. Abrviations D: Droit, L: Lettres, M: Mdecine, S: Sciences, T: Thologie, TI: Traduction&Interprtation  

E-print Network

HERNANDEZ (D)[261] *Pour départager les trois candidats ayant obtenu un nombre égal de voix [268], il a été) Frédéric TINGUELY (L) Pierre ALLAN (SES) Frédéric ROBERT-NICOUD (SES) Sylvain MARCHAND (D) Marie

Schibler, Ueli

500

Relationships between Duck and Grassland Bird Relative Abundance and Species Richness in Southern Saskatchewan Relations entre l'abondance relative et la richesse spécifique des canards et d'autres oiseaux de prairie dans le sud de la Saskatchewan  

Microsoft Academic Search

Digital map products that integrate long-term duck population and land-use data are currently being used to guide conservation program delivery on the Canadian Prairies. However, understanding the inter-relationships between ducks and other grassland bird species would greatly enhance program planning and delivery. We hypothesized that ducks, and Northern Pintail ( Anas acuta) in particular, may function as an umbrella guild

Susan P. Skinner; Robert G. Clark