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1

Protecting Yourself from Poisonous Plants  

MedlinePLUS

... a poisonous plant: Immediately rinse skin with rubbing alcohol, poison plant wash, or degreasing soap (such as ... some protection. After use, clean tools with rubbing alcohol or soap and lots of water. Urushiol can ...

2

PROTECTION, VIS A VIS DES EXPLOSIONS, DES ^QUIPEMENTSDE TRANSPORT ET DE MANUTENTION UTILISANT L'ENERGIE ELECTRIQUE  

E-print Network

94-8 PROTECTION, VIS A VIS DES EXPLOSIONS, DES ^QUIPEMENTSDE TRANSPORT ET DE MANUTENTION UTILISANT anciennes decharges....). Dans tous ces emplacements peuvent exister des risques d'explosions du fait de la explosive dans l'air. Cette activite qui ne peut etre evitee ne doit pas augmenter les risques d'explosion

Boyer, Edmond

3

agronomie: plant genetics and breeding tude srologique des souches marocaines  

E-print Network

agronomie: plant genetics and breeding �tude s�rologique des souches marocaines d'Agrobacterium tumefaciens, agent de la galle du collet des rosac�es fruiti�res A Benjama N Alami EM Saadaoui 1 Laboratoire of Moroccan strains of Agrobacterium tumefaciens, the causal agent of crown- gall in stone-fruit trees

Paris-Sud XI, Université de

4

Amlioration des plantes Etudes cytologiques de choux ttraplodes (Brassica  

E-print Network

Amélioration des plantes Etudes cytologiques de choux tétraploïdes (Brassica oleracea L. ssp de type diploïde et leur fertilité satisfaisante. Brassica oleracea - niveau de ploïdie - chloroplastes - comportement méiotique Summary Cytological studies of tetraploid kale (Brassica oleracea

Paris-Sud XI, Université de

5

Amlioration des plantes Evolution des caractristiques de la graine  

E-print Network

'évolution de l'humidité du capitule et des graines de 25 variétés de tournesol (Helianthus annuus L.), de la of 25 sunflower (Helianthus annuus L.) varieties were followed from flowering to maturity, the oil

Paris-Sud XI, Université de

6

Protective action recommendations based upon plant conditions.  

PubMed

Analyses conducted by the Nuclear Regulatory Commission (NRC) indicate that timely and effective protective action would be necessary to protect the public in a major nuclear power plant accident. Given the large amount of time required to implement an evacuation around most reactor sites, protective action recommendations (PARs) must be based upon specific plant indicators regarding the status of the core and systems that protect the core. This article describes the assumptions made, and the analyses conducted, by the NRC in developing its procedures for PARs based upon plant conditions. PMID:10838240

McKenna, T J

2000-07-28

7

Amlioration des plantes tude des caractres d'enracinement  

E-print Network

; accepté le 18 mars 1990) Résumé Les effets d'un déficit hydrique sur les caractéristiques de l the Mediterranean region were cultivated in pots in a greenhouse, under irrigated conditions and water def- icit effets de la sécheresse, la plante a 2 possibilités : réduire ses pertes d'eau interne par transpiration

Paris-Sud XI, Université de

8

Amlioration des plantes Polymorphisme de l'? amylase chez le pcher.  

E-print Network

Amélioration des plantes Polymorphisme de l'? amylase chez le pêcher. ?tude génétique R Monet-de-la-Maye, France (Reçu le 16 octobre 1990; accepté le 13 mars 1991) Résumé L'a amylase a été étudiée chez'? amylase et celui responsable de la forme des fleurs; en revanche le locus de l'a amylase est indépendant

Paris-Sud XI, Université de

9

7 CFR 97.3 - Plant Variety Protection Board.  

...2014-01-01 2014-01-01 false Plant Variety Protection Board. 97.3 Section... COMMODITY LABORATORY TESTING PROGRAMS PLANT VARIETY AND PROTECTION Administration 97.3 Plant Variety Protection Board....

2014-01-01

10

48 CFR 252.217-7016 - Plant protection.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Plant protection. 252.217-7016 ...Provisions And Clauses 252.217-7016 Plant protection. As prescribed in 217.7104(a), use the following clause: Plant Protection (DEC 1991) (a)...

2011-10-01

11

48 CFR 252.217-7016 - Plant protection.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Plant protection. 252.217-7016 ...Provisions And Clauses 252.217-7016 Plant protection. As prescribed in 217.7104(a), use the following clause: Plant Protection (DEC 1991) (a)...

2012-10-01

12

48 CFR 252.217-7016 - Plant protection.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Plant protection. 252.217-7016 ...Provisions And Clauses 252.217-7016 Plant protection. As prescribed in 217.7104(a), use the following clause: Plant Protection (DEC 1991) (a)...

2013-10-01

13

48 CFR 252.217-7016 - Plant protection.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Plant protection. 252.217-7016 ...Provisions And Clauses 252.217-7016 Plant protection. As prescribed in 217.7104(a), use the following clause: Plant Protection (DEC 1991) (a)...

2010-10-01

14

Y-12 Plant Stratospheric Ozone Protection plan  

SciTech Connect

The Y-12 Plant staff is required by Lockheed Martin Energy Systems (Energy Systems) (formerly Martin Marietta Energy Systems) standard ESS-EP-129 to develop and implement a Stratospheric Ozone Protection Program which will minimize emissions of ozone-depleting substances to the environment and maximize the use of ozone-safe alternatives in order to comply with Title VI of the 1990 Clean Air Act (CAA) Amendments and the implementing regulations promulgated by the Environmental Protection Agency (EPA). This plan describes the requirements, initiatives, and accomplishments of the Y-12 Plant Stratospheric Ozone Protection Program.

NONE

1995-09-01

15

Drizo protects turbo expander plant  

Microsoft Academic Search

A triethylene glycol (TEG) unit using Dow's Drizo technology in front of processes was installed in a turbo expander plant owned by Valero Hydrocarbons, San Antonio, Texas. The TEG unit was placed in the process because methanol consumption had run higher than design conditions had predicted; gas flow rates and water content varied widely; and the gas was found to

C. W. Frazier; J. E. Force

1982-01-01

16

Drizo protects turbo expander plant  

SciTech Connect

A triethylene glycol (TEG) unit using Dow's Drizo technology in front of processes was installed in a turbo expander plant owned by Valero Hydrocarbons, San Antonio, Texas. The TEG unit was placed in the process because methanol consumption had run higher than design conditions had predicted; gas flow rates and water content varied widely; and the gas was found to be contaminated considerably with iron sulfide. The TEG unit optimized gas processing by reducing the water content of gas to the system, accepting variable gas flow and water content to smooth out feed gas quality, removing iron sulfide and other contaminants before processing, and being amenable to conversion from other equipment already in existence at other Valero plant locations. The TEG Drizo process provides an azeotropic agent injected into the hot glycol, and the glycol solution is used to reduce residual water content of gas. Details of the equipment and process conversion are given.

Frazier, C.W.; Force, J.E.

1982-01-01

17

Genetically Modified Pest Protected Plants  

NSDL National Science Digital Library

Released on April 5, this widely anticipated report on genetically modified foods from a twelve-member panel of the National Research Council, part of the US National Academy of Sciences, offers a cautious endorsement of biotech foods, but also calls for more oversight and regulation. Focusing only on plants that have been genetically engineered to produce their own pesticides, the report finds no evidence that any foods made from these plants are unsafe to eat. It also finds no inherent danger in the insertion of genes from one species into another. However, the report does advise the government to conduct studies on the long-term health effects of eating biotech foods and recommends that the EPA regulate crops modified to resist viruses. As would be expected, the report has been welcomed by biotechnology companies and blasted by foes of genetic engineering, some of whom accused the panel of a pro-industry bias. A free pre-publication copy of the report is available online at the National Academy Press Website. Users can view the text as page images in HTML format or as .pdf files.

18

40 CFR 174.25 - Plant-incorporated protectant from sexually compatible plant.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Plant-incorporated protectant from sexually compatible plant. 174.25 Section 174.25 Protection...PROGRAMS PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS Exemptions...

2013-07-01

19

40 CFR 174.25 - Plant-incorporated protectant from sexually compatible plant.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 2012-07-01 false Plant-incorporated protectant from sexually compatible plant. 174.25 Section 174.25 Protection...PROGRAMS PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS Exemptions...

2012-07-01

20

40 CFR 174.25 - Plant-incorporated protectant from sexually compatible plant.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Plant-incorporated protectant from sexually compatible plant. 174.25 Section 174.25 Protection...PROGRAMS PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS Exemptions...

2011-07-01

21

Amlioration des plantes Dterminisme gntique de la rsistance  

E-print Network

Amélioration des plantes Déterminisme génétique de la résistance au puceron vert (Myzus persicae - Chez le pêcher, une étude génétique du mode d'hérédité de la résistance à Myzus persicae a été faite à partie d'un programme de création de variétés résistantes à Myzus persicae. Prunus persica/puceron vert

Paris-Sud XI, Université de

22

Protection de la vie prive base sur des ontologies dans un systme Android  

E-print Network

1 Protection de la vie privée basée sur des ontologies dans un système Android Johann Vincent.dubin@ecole.ensicaen.fr, christine.porquet@ensicaen.fr Résumé--Le système Android équipe aujourd'hui plus de la moitié des géolocalisation. Cet article présente une solution de protection de la vie privée intégrée au système Android

Paris-Sud XI, Université de

23

AMLIORATION DES PLANTES Nouveau regard sur le comportement de l'as-  

E-print Network

AM?LIORATION DES PLANTES Nouveau regard sur le comportement de l'as- perge (Asparagus officinalis L'asperge (Asparagus officinalis L.), de la famille des Liliacées, est une espèce dioïque et pérenne dont la in vitro, griffe, arbre, marqueurs biochimiques, rujeunissement, pérennité. SUMMARY Asparagus cloning

Paris-Sud XI, Université de

24

7 CFR 355.11 - Protected plant permits.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 2010-01-01 false Protected plant permits. 355.11 Section 355.11...of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT...SPECIES REGULATIONS CONCERNING TERRESTRIAL PLANTS Permission to Engage in Business...

2010-01-01

25

7 CFR 355.11 - Protected plant permits.  

Code of Federal Regulations, 2012 CFR

...2012-01-01 2012-01-01 false Protected plant permits. 355.11 Section 355.11...of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT...SPECIES REGULATIONS CONCERNING TERRESTRIAL PLANTS Permission to Engage in Business...

2012-01-01

26

7 CFR 355.11 - Protected plant permits.  

Code of Federal Regulations, 2013 CFR

...2013-01-01 2013-01-01 false Protected plant permits. 355.11 Section 355.11...of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT...SPECIES REGULATIONS CONCERNING TERRESTRIAL PLANTS Permission to Engage in Business...

2013-01-01

27

7 CFR 355.11 - Protected plant permits.  

Code of Federal Regulations, 2011 CFR

...2011-01-01 2011-01-01 false Protected plant permits. 355.11 Section 355.11...of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT...SPECIES REGULATIONS CONCERNING TERRESTRIAL PLANTS Permission to Engage in Business...

2011-01-01

28

West Fork Des Moines River, Jackson, Minnesota, Local Protection Project.  

National Technical Information Service (NTIS)

The report describes flood control protection consisting of construction of new earthen levees, concrete floodwalls, closure structures, ponding area, and modification of sanitary and storm sewer system for the city of Jackson, Jackson County, Minnesota. ...

1972-01-01

29

Paris, le 24 janvier 2013 MNAGERIE, LE ZOO DU JARDIN DES PLANTES  

E-print Network

Paris, le 24 janvier 2013 M?NAGERIE, LE ZOO DU JARDIN DES PLANTES Après l'épisode neigeux, la Ménagerie rouvre ses portes au public et sonne la fin de la récréation pour les Orangs-outans ! Le zoo a du zoo de Twycross (Angleterre). Infos pratiques Accès par le Jardin des Plantes, 57 rue Cuvier. Ouvert

30

Paris, mai 2014 LA MNAGERIE, LE ZOO DU JARDIN DES PLANTES  

E-print Network

Paris, mai 2014 LA M?NAGERIE, LE ZOO DU JARDIN DES PLANTES Exposition : les coulisses en bande dessinée Ouverte en 1794, la Ménagerie, zoo historique au coeur de Paris, fête ses 220 ans cette année ! ? exposer le travail qu'elle a réalisé lors de son immersion au sein du zoo du Jardin des Plantes pour la

31

VACCINATION ANTI-K99 ET PROTECTION COLOSTRALE DES VEAUX INFECTS EXPRIMENTALEMENT  

E-print Network

the colostrum of B41 vaccinated cows are infected with E. coli B44 (09: K30: H-K99, F41Vaccination multiplies K99 antibodies in colostrum by seven. In B44 infected calves, specific K99, F41 antibodies protect 62 % (Acres et al., 19771 des veaux âgés de moins de 4 ou 5 jours. Un colostrum de vaches ne

Paris-Sud XI, Université de

32

Le desschement prcoce des tournesols. Dyna-mique de la colonisation des plantes par les  

E-print Network

maturation des graines. Mots clés additionnels : Helianthus annuus L., Fusarium spp., Cylindrocarpon spp words : Helianthus annuus L., Fusarium spp., Cylindrocarpon spp., Pythium spp., roots, stems, critical

Boyer, Edmond

33

Amlioration des plantes Contrle gntique de l'hydroxylation en 5'  

E-print Network

coronarium L and H capitatum Desf, Asch et Gr. The results of chemogenetic studies on flower pigmentationAmélioration des plantes Contrôle génétique de l'hydroxylation en 5' des anthocyanes dans les'analyse génétique et chromatographique de la pigmentation florale chez H coronarium et H capitatum montre que l

Paris-Sud XI, Université de

34

Rubber linings as surface protection in flue gas desulfurization plants  

SciTech Connect

The manufacturers of the German rubber lining industry have executed the rubber lining of over 1 million m{sup 2} of steel surfaces in over 150 scrubbers of flue gas desulfurization (FGD) plants, thereby effectively protecting them against corrosion. The application of rubber linings as surface protection in FGD plants has proven effective.

Fenner, J.

1997-04-01

35

Transgenic Trees: Implementation and Outcomes of the Plant Protection Act  

Microsoft Academic Search

The responsibility for protecting U.S. agriculture from pests and diseases is assigned by the Federal Plant Pest Act (FPPA) to the Animal and Plant Health Inspection Service (APHIS) of the Department of Agriculture. The Plant Protection Act (Title 7 U.S.C. Sections 7701 et seq.) gives Aphis statutory authority over genetically modified organisms (GMO), in effect assigning to APHIS a related

Roger A. Sedjo

2004-01-01

36

Exposure of pollinators to plant protection products.  

PubMed

As a general rule, environmental risk for chemicals is characterised by comparing an expected exposure level (e.g. PEC) with an ecotoxicological endpoint. The same approach is generally used for plant protection products (PPPs). However, in some cases, suitable procedures for a precise quantification of exposure are not available. The common risk assessment procedure for pollinators based on the hazard quotient, where the agronomic application rate is assumed as an exposure indicator, is an example. In this work, a semi-quantitative index to assess exposure to PPPs for organisms with a large forage area is presented. The proposed index was already applied in a previous work on risk assessment for pollinators, for this reason the validation steps (sampling area, collected samples, samples distribution) were planned bearing in mind the characteristic and the behaviour of these organisms and using Apis mellifera as representative of pollinators. The starting point for the development of the index is the assumption that exposure depends not only on environmental fate of pesticides but also on the feeding behaviour of the target organisms (in this context meant as target of the assessment). The developed index was applied and validated in different experimental areas of 4 4 km located in North-East Italy (Veneto region) characterised by a different level of impact. A sensitivity analysis of the index was performed evaluating the influence of the dataset resolution on the predictive efficiency. The obtained results indicate a good agreement between predicted and measured concentrations, supporting the suitability of the index to improve exposure assessment for pollinators. PMID:22752801

Barmaz, Stefania; Vaj, Claudia; Ippolito, Alessio; Vighi, Marco

2012-11-01

37

Protected-Area Boundaries as Filters of Plant Invasions  

PubMed Central

Abstract Human land uses surrounding protected areas provide propagules for colonization of these areas by non-native species, and corridors between protected-area networks and drainage systems of rivers provide pathways for long-distance dispersal of non-native species. Nevertheless, the influence of protected-area boundaries on colonization of protected areas by invasive non-native species is unknown. We drew on a spatially explicit data set of more than 27,000 non-native plant presence records for South Africa's Kruger National Park to examine the role of boundaries in preventing colonization of protected areas by non-native species. The number of records of non-native invasive plants declined rapidly beyond 1500 m inside the park; thus, we believe that the park boundary limited the spread of non-native plants. The number of non-native invasive plants inside the park was a function of the amount of water runoff, density of major roads, and the presence of natural vegetation outside the park. Of the types of human-induced disturbance, only the density of major roads outside the protected area significantly increased the number of non-native plant records. Our findings suggest that the probability of incursion of invasive plants into protected areas can be quantified reliably. PMID:21166715

Foxcroft, Llewellyn C; JaroSIK, Vojtech; Pysek, Petr; Richardson, David M; Rouget, Mathieu

2011-01-01

38

Cathodic protection current testing for large plant structures  

SciTech Connect

Design of cathodic protection (CP) for underground facilities in large plants is a problem. A method is described for performing data interpretation of field cathodic current requirement tests on large plant structures. It is possible to perform meaningful tests with small temporary current sources and arrive at a design where final requirements are many times larger. Examples of its use at a power plant and an air separation plant are given.

Maynard, R.J. [Aurora Corrosion Control, Calgary, Alberta (Canada)

1996-07-01

39

Amlioration des plantes Corrlations gntiques, hritabilits et possibilits de  

E-print Network

multilocale précoce sur le rendement chez le blé tendre d'hiver (Triticum aestivum L.) P. Brabant1 Y. Manes1 M'hiver (Triticum aestivum L.) commencent par des croisements entre deux, trois ou quatre lignées, rarement

Boyer, Edmond

40

40 CFR 174.9 - Confidential business information claims for plant-incorporated protectant submissions.  

Code of Federal Regulations, 2010 CFR

...Confidential business information claims for plant-incorporated protectant submissions...PROGRAMS PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS General Provisions...Confidential business information claims for plant-incorporated protectant...

2010-07-01

41

40 CFR 174.9 - Confidential business information claims for plant-incorporated protectant submissions.  

Code of Federal Regulations, 2012 CFR

...Confidential business information claims for plant-incorporated protectant submissions...PROGRAMS PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS General Provisions...Confidential business information claims for plant-incorporated protectant...

2012-07-01

42

40 CFR 161.540 - Plant protection data requirements.  

Code of Federal Regulations, 2012 CFR

...2012-07-01 false Plant protection data requirements. 161.540 Section 161...AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Data Requirement Tables 161.540...

2012-07-01

43

40 CFR 161.540 - Plant protection data requirements.  

Code of Federal Regulations, 2011 CFR

...2011-07-01 false Plant protection data requirements. 161.540 Section 161...AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Data Requirement Tables 161.540...

2011-07-01

44

40 CFR 161.540 - Plant protection data requirements.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 false Plant protection data requirements. 161.540 Section 161...AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Data Requirement Tables 161.540...

2013-07-01

45

40 CFR 161.540 - Plant protection data requirements.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false Plant protection data requirements. 161.540 Section 161...AGENCY (CONTINUED) PESTICIDE PROGRAMS DATA REQUIREMENTS FOR REGISTRATION OF ANTIMICROBIAL PESTICIDES Data Requirement Tables 161.540...

2010-07-01

46

Protective action alternatives for accidents at nuclear power plants  

Microsoft Academic Search

Protective action calculations have been performed for five different light water reactors (LWRs) and containment designs using high and low fission product releases for early and late containment failures for each plant. These fission product release estimates were obtained from studies performed for the recently published ''Reactor Risk Reference Document'' (NUREG-1150). Five protective actions were considered for the risks of

A. Tingle; W. T. Pratt; S. A. McGuire

1987-01-01

47

Amlioration des plantes tude multilocale de bls hybrides  

E-print Network

and height, close to the mid-parent for the number of ears per m2 and fertility of ear, and on a par heterosis is demonstrated for yield, and the F1 are, on average, above the mid-parent for1 000 seed weight multilocale nous a permis de comparer 35 hybrides de blé tendre d'hiver avec leurs parents, dans des

Boyer, Edmond

48

Public lakes, private lakeshore: modeling protection of native aquatic plants.  

PubMed

Protection of native aquatic plants is an important proenvironmental behavior, because plant loss coupled with nutrient loading can produce changes in lake ecosystems. Removal of aquatic plants by lakeshore property owners is a diffuse behavior that may lead to cumulative impacts on lake ecosystems. This class of behavior is challenging to manage because collective impacts are not obvious to the actors. This paper distinguishes positive and negative beliefs about aquatic plants, in models derived from norm activation theory (Schwartz, Adv Exp Soc Psychol 10:221-279, 1977) and the theory of reasoned action (Fishbein and Ajzen, Belief, attitude, intention, and behavior: an introduction to theory and research, Addison-Wesley, Boston 1975), to examine protection of native aquatic plants by Minnesota lakeshore property owners. We clarify how positive and negative evaluations of native aquatic plants affect protection or removal of these plants. Results are based on a mail survey (n=3,115). Results suggest that positive evaluations of aquatic plants (i.e., as valuable to lake ecology) may not connect with the global attitudes and behavioral intentions that direct plant protection or removal. Lakeshore property owners' behavior related to aquatic plants may be driven more by tangible personal benefits derived from accessible, carefully managed lakeshore than intentional action taken to sustain lake ecosystems. The limited connection of positive evaluations of aquatic plants to global attitudes and behavioral intentions may reflect either lack of knowledge of what actions are needed to protect lake health and/or unwillingness to lose perceived benefits derived from lakeshore property. PMID:23609308

Schroeder, Susan A; Fulton, David C

2013-07-01

49

Benefits of upgrading protection schemes for hydroelectric power plants  

Microsoft Academic Search

The role played by various energy sources has undergone a sweeping change during the post-deregulation era in the power industry. In the wake of this transformation, hydroelectric power plants, primarily employed as peaking units, assume great opportunities in participating on load balancing and other ancillary services market. A comprehensive protection plan for hydroelectric power plants would be of great importance

S. A. Wright; A. Kanagala; M. Sahni; W. J. Lee; R. Kenarangui; H. F. Threlkeld; M. A. Martinez

2005-01-01

50

Wind Power Plant Grounding, Overvoltage Protection, and Insulation Coordination  

SciTech Connect

Proper insulation coordination is critical to achieving expected life from wind plant equipment. The collector systems of large wind plants require the application of surge arresters to protect the equipment insulation from transient overvoltages. The application of surge arresters is constrained by maximum operating and temporary overvoltage levels. This paper provides a tutorial description of the process of selecting and applying surge arresters to wind plant medium voltage collector systems, with emphasis on the peculiar properties of this application.

Camm, E H [IEEE PES Wind Plant Collector System Design Working Group; Behnke, M. R. [IEEE PES Wind Plant Collector System Design Working Group; Bolado, O. [IEEE PES Wind Plant Collector System Design Working Group; Bollen, M. [IEEE PES Wind Plant Collector System Design Working Group; Bradt, M. [IEEE PES Wind Plant Collector System Design Working Group; Brooks, C. [IEEE PES Wind Plant Collector System Design Working Group; Dilling, W. [IEEE PES Wind Plant Collector System Design Working Group; Edds, M. [IEEE PES Wind Plant Collector System Design Working Group; Hejdak, W. J. [IEEE PES Wind Plant Collector System Design Working Group; Houseman, D. [IEEE PES Wind Plant Collector System Design Working Group; Klein, S. [IEEE PES Wind Plant Collector System Design Working Group; Li, Fangxing [ORNL; Li, J. [IEEE PES Wind Plant Collector System Design Working Group; Maibach, P. [IEEE PES Wind Plant Collector System Design Working Group; Nicolai, T. [IEEE PES Wind Plant Collector System Design Working Group; Pasupulati, S. V. [IEEE PES Wind Plant Collector System Design Working Group; Patino, J. [IEEE PES Wind Plant Collector System Design Working Group; Samaan, N. [IEEE PES Wind Plant Collector System Design Working Group; Saylors, S. [IEEE PES Wind Plant Collector System Design Working Group; Siebert, T. [IEEE PES Wind Plant Collector System Design Working Group; Smith, Travis M [ORNL; Starke, Michael R [ORNL; Walling, R. [IEEE PES Wind Plant Collector System Design Working Group

2009-01-01

51

Are you prepared Protecting your hydro plant from lightning strikes  

SciTech Connect

A properly designed lightning protection system requires a basic understanding of the physics of lightning and the means available to both divert and conduct lightning stroke energy around structures. Once the basics are understood, an engineer can using existing codes and standards to design an effective protection scheme for a given structure. A well-implemented scheme ensures that direct or close-proximity lightning strokes will not cause forced outages of hydroturbine-generator units. Lightning protection should be a part of the design of any new hydroelectric plant. If protection was not provided when the project was constructed, rehabilitation projects and activities offer opportunities to make corrections.

Clemen, D.M. (Harza Engineering Co., Chicago, IL (United States))

1993-12-01

52

Water protection in coke-plant design  

SciTech Connect

Wastewater generation, water consumption, and water management at coke plants are considered. Measures to create runoff-free water-supply and sewer systems are discussed. Filters for water purification, corrosion inhibitors, and biocides are described. An integrated single-phase technology for the removal of phenols, thiocyanides, and ammoniacal nitrogen is outlined.

G.I. Alekseev [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15

53

A novel plant protection strategy for transient reactors  

NASA Astrophysics Data System (ADS)

The present plant protection system (PPS) has been defined for use in the TREAT-upgrade (TU) reactor for controlled transient operation of reactor-fuel behavior testing under simulated reactor-accident conditions. A PPS with energy-dependent trip set points lowered worst-case clad temperatures by as much as 180 K, relative to the use of conventional fixed-level trip set points. The multilayered multilevel protection strategy represents the state-of-the-art in terrestrial transient reactor protection systems, and should be applicable to multi-MW space reactors.

Bhattacharyya, Samit K.; Lipinski, Walter C.; Hanan, Nelson A.

54

Effective protective surveillance for waterside-located chemical plants  

Microsoft Academic Search

Millions of citizens live and work in the dangerous proximity of chemical plants, at ports and along waterways, which are under-protected and whose security is under-regulated, according to findings of the Congressional Research Service (CRS). There is a new and intense focus on the security of the nation's critical infrastructure. Thanks to recent philosophy and policy shifts within our federal

John Love; Doug Van Dover

2006-01-01

55

Cold Protection Strategies for Landscape PlantsCold Protection Strategies for Landscape Plants When the thermometer hovers nearWhen the thermometer hovers near  

E-print Network

Cold Protection Strategies for Landscape PlantsCold Protection Strategies for Landscape Plants #12;·· When the thermometer hovers nearWhen the thermometer hovers near 34 degrees, plants can be damaged34 degrees, plants can be damaged by frost formation or freezing.by frost formation or freezing. ·· Cold

Jawitz, James W.

56

Oak Ridge Y-12 Plant groundwater protection program management plan  

SciTech Connect

The Oak Ridge Y- 1 2 Plant (Y-12 Plant) is owned by the United States Department of Energy (DOE) and managed by Lockheed Martin Energy Systems, Inc. (Energy Systems) under contract No. DE-AC05-84OR21400. The Y-12 Plant Groundwater Protection Program (GWPP), which was initiated in 1975, provides for the protection of groundwater resources consistent with Federal, State, and local regulations, and in accordance with DOE orders and Energy Systems policies and procedures. The Y-12 Plant is located in Anderson County, Tennessee, and is within the corporate limits of the City of Oak Ridge. The Y-12 Plant is one of three major DOE complexes that comprise the 37,000-acre Oak Ridge Reservation (ORR) located in Anderson and Roane counties. The Y-12 Plant is located in Bear Creek Valley at an elevation of about 950 feet (ft) above sea level. Bear Creek Valley is bounded on the northwest and southeast, and is isolated from populated areas of Oak Ridge, by parallel ridges that rise about 300 ft above the valley floor. The Y-12 Plant and its fenced buffer area are about 0.6 mile wide by 3.2 miles long and cover approximately 4,900 acres. The main industrialized section encompasses approximately 800 acres.

NONE

1996-06-01

57

Diversity protects plant communities against generalist molluscan herbivores.  

PubMed

Wildflower strips are used to increase natural enemies of crop pests and to conserve insect diversity on farmland. Mollusks, especially slugs, can affect the vegetation development in these strips considerably. Although recent theoretical work suggests that more diverse plant communities will exhibit greater resistance against herbivore pressure, empirical studies are scarce. We conducted a semi-natural experiment in wildflower strips, manipulating trophic structure (reduction in herbivorous mollusks and reduction in major predators) and plant diversity (2, 6, 12, 20 and 24 sown species). This design allowed us to assess the effect of plant diversity, biomass and composition on mollusks, and vice versa, the effect of mollusc abundance on vegetation. Seven species of mollusks were found in the strips, with the slugs Arion lusitanicus, Deroceras reticulatum and Deroceras panormitanum being most frequent. We found a negative relationship between plant diversity and mollusk abundance, which was due predominantly to a decrease in the agricultural pest species A. lusitanicus. These results are consistent with the hypothesis that plant diversity can reduce the impact of herbivores. However, plant identity also had an effect on mollusks, and accounted for a much larger fraction of the variation in mollusk communities than biodiversity effects. While overall plant diversity decreased during the 3 years of the study, in the final year the highest plant diversity was found in the plots where mollusk populations were experimentally reduced. We conclude that selective feeding by generalist herbivores leads to changes in plant community composition and hence reduced plant diversity. Our results highlight the importance of plant biodiversity as protection against generalist herbivores, which if abundant can in the long term negatively impact plant diversity, driving the system along a "low plant diversity - high mollusk abundance" trajectory. PMID:23145332

Fabian, Yvonne; Sandau, Nadine; Bruggisser, Odile T; Kehrli, Patrik; Aebi, Alexandre; Rohr, Rudolf P; Naisbit, Russell E; Bersier, Louis-Flix

2012-10-01

58

Diversity protects plant communities against generalist molluscan herbivores  

PubMed Central

Wildflower strips are used to increase natural enemies of crop pests and to conserve insect diversity on farmland. Mollusks, especially slugs, can affect the vegetation development in these strips considerably. Although recent theoretical work suggests that more diverse plant communities will exhibit greater resistance against herbivore pressure, empirical studies are scarce. We conducted a semi-natural experiment in wildflower strips, manipulating trophic structure (reduction in herbivorous mollusks and reduction in major predators) and plant diversity (2, 6, 12, 20 and 24 sown species). This design allowed us to assess the effect of plant diversity, biomass and composition on mollusks, and vice versa, the effect of mollusc abundance on vegetation. Seven species of mollusks were found in the strips, with the slugs Arion lusitanicus, Deroceras reticulatum and Deroceras panormitanum being most frequent. We found a negative relationship between plant diversity and mollusk abundance, which was due predominantly to a decrease in the agricultural pest species A. lusitanicus. These results are consistent with the hypothesis that plant diversity can reduce the impact of herbivores. However, plant identity also had an effect on mollusks, and accounted for a much larger fraction of the variation in mollusk communities than biodiversity effects. While overall plant diversity decreased during the 3 years of the study, in the final year the highest plant diversity was found in the plots where mollusk populations were experimentally reduced. We conclude that selective feeding by generalist herbivores leads to changes in plant community composition and hence reduced plant diversity. Our results highlight the importance of plant biodiversity as protection against generalist herbivores, which if abundant can in the long term negatively impact plant diversity, driving the system along a low plant diversity high mollusk abundance trajectory. PMID:23145332

Fabian, Yvonne; Sandau, Nadine; Bruggisser, Odile T; Kehrli, Patrik; Aebi, Alexandre; Rohr, Rudolf P; Naisbit, Russell E; Bersier, Louis-Felix

2012-01-01

59

Amlioration des plantes Caractristiques de la rsistance du cultivar  

E-print Network

résultats obtenus, la résistance du cultivar de pêcher Rubira aux fondatrigènes aptères de Myzus persicae of the resistance of the peach cultivar Rubira to Myzus persicae Sulzer. This work relies upon the comparison by the fundatrigeniae apterae of Myzus persicae. The mechanisms of plant resistance are initiated by the feeding punc

Paris-Sud XI, Université de

60

The Mars Plant Growth Experiment and Implications for Planetary Protection  

NASA Astrophysics Data System (ADS)

Plants are the ultimate and necessary solution for O2 production at a human base on Mars. Currently it is unknown if seeds can germinate on the Martian surface. The Mars Plant growth experiment (MPX) is a proposal for the first step in the development of a plant- based O2 production system by demonstrating plant germination and growth on the Martian surface. There is currently no planetary protection policy in place that covers plants on the Martian surface. We describe a planetary protection plan in compliance with NASA and COSPAR policy for a closed plant growth chamber on a Mars rover. We divide the plant growth chamber into two categories for planetary protection, the Outside: the outside of the chamber exposed to the Martian environment, and the Inside: the inside of the chamber which is sealed off from Mars atmosphere and contains the plant seeds and ancillary components for seed growth. We will treat outside surfaces of the chamber as other outside surfaces on the rover, wiped with a mixture of isopropyl alcohol and water as per Category IVb planetary protection requirements. All internal components of the MPX except the seeds and camera (including the water system, the plant growth stage and interior surface walls) will be sterilized by autoclave and subjected to sterilizing dry heat at a temperature of 125C at an absolute humidity corresponding to a relative humidity of less than 25 percent referenced to the standard conditions of 0C and 760 torr pressure. The seeds and internal compartments of the MPX in contact with the growth media will be assembled and tested to be free of viable microbes. MPX, once assembled, cannot survive Dry Heat Microbial Reduction. The camera with the radiation and CO2 sensors will be sealed in their own container and vented through HEPA filters. The seeds will be vernalized (microbe free) as per current Space Station methods described by Paul et al. 2001. Documentation of the lack of viable microbes on representative seeds from the same seed lot as used in the flight unit and lack of viable microbes in the interior of the MPX will be confirmed by the assay methods outlined in NASA HDBK 6022. In this method surfaces are swabbed and the cells collected on the swabs are extracted and then cultured following a standard protocol. All operations involving the manipulation of sterile items and sample processing shall be performed in laminar flow environments meeting Class 100 air cleanliness requirements of Federal Standard 209B. The entire MPX will be assembled in a sterile environment within a month of launch if possible, but could withstand an earlier assembly if required.

Smith, Heather

61

Protective action alternatives for accidents at nuclear power plants  

SciTech Connect

Protective action calculations have been performed for five different light water reactors (LWRs) and containment designs using high and low fission product releases for early and late containment failures for each plant. These fission product release estimates were obtained from studies performed for the recently published ''Reactor Risk Reference Document'' (NUREG-1150). Five protective actions were considered for the risks of exceeding various dose levels to the red marrow versus centerline distance from the plants using site-specific meteorology. The strategies considered were 4 hours of normal activity, basement sheltering, large building sheltering, evacuation at release, and evacuation 1 hour after release. The evacuations were computed using 10 mph evacuation speed for all sites. Additional calculations were performed for the dose contributions due to the cloud, ground, and inhalation pathways.

Tingle, A.; Pratt, W.T.; McGuire, S.A.

1987-06-01

62

78 FR 45573 - Compensatory and Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN...  

Federal Register 2010, 2011, 2012, 2013

...Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN-FIRE) AGENCY: Nuclear Regulatory Commission. ACTION...Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN-FIRE), Draft Report for...

2013-07-29

63

78 FR 55765 - Compensatory and Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN...  

Federal Register 2010, 2011, 2012, 2013

...Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN-FIRE) AGENCY: Nuclear Regulatory Commission. ACTION...Alternative Regulatory Measures for Nuclear Power Plant Fire Protection (CARMEN-FIRE).'' In response...

2013-09-11

64

The Plant Variety Protection Act: Information for Texas Small Grain Producers  

E-print Network

E-338 1/05 Gaylon D. Morgan, State Extension Small Grains Specialist Texas Cooperative Extension ? TAMU-System Steve Brown, Texas Foundation Seed, Lockett, TX T he Plant Variety Protection Act: Enforcement of the Plant Variety Protection Act...E-338 1/05 Gaylon D. Morgan, State Extension Small Grains Specialist Texas Cooperative Extension ? TAMU-System Steve Brown, Texas Foundation Seed, Lockett, TX T he Plant Variety Protection Act: Enforcement of the Plant Variety Protection Act...

Brown, Steve; Morgan, Gaylon

2005-01-26

65

Radiation protection performance indicators at the Nuclear Power Plant Krsko.  

PubMed

Nuclear power plant safety performance indicators are developed "by nuclear operating organisations to monitor their own performance and progress, to set their own challenging goals for improvement, and to gain additional perspective on performance relative to that of other plants". In addition, performance indicators are widely used by regulatory authorities although the use is not harmonised. Two basic performance indicators related to good radiation protection practice are collective radiation exposure and volume of low-level radioactive waste. In 2000, Nuclear Power Plant Krsko, a Westinghouse pressurised water reactor with electrical output 700 MW, finished an extensive modernisation including the replacement of both steam generators. While the annual volume of low-level radioactive waste does not show a specific trend related to modernisation, the annual collective dose reached maximum, i.e. 2.60 man Sv, and dropped to 1.13 man Sv in 2001. During the replacement of the steam generators in 2000, the dose associated with this activity was 1.48 man Sv. The annual doses in 2002 and 2003 were 0.53 and 0.80 man Sv, respectively, nearing thus the goal set by the US Institute of Nuclear Power Operators, which is 0.65 man Sv. Therefore, inasmuch as collective dose as the radiation protection performance indicator are concerned, the modernisation of the Krsko nuclear power plant was a success. PMID:16832974

Janzekovic, Helena

2006-06-01

66

Development, registration and commercialization of microbial pesticides for plant protection.  

PubMed

Plant protection against pathogens, pests and weeds has been progressively reoriented from a therapeutic approach to a rational use of pesticide chemicals in which consumer health and environmental preservation prevail over any other productive or economic considerations. Microbial pesticides are being introduced in this new scenario of crop protection and currently several beneficial microorganisms are the active ingredients of a new generation of microbial pesticides or the basis for many natural products of microbial origin. The development of a microbial pesticide requires several steps addressed to its isolation in pure culture and screening by means of efficacy bioassays performed in vitro, ex vivo, in vivo, or in pilot trials under real conditions of application (field, greenhouse, post-harvest). For the commercial delivery of a microbial pesticide, the biocontrol agent must be produced at an industrial scale (fermentation), preserved for storage and formulated by means of biocompatible additives to increase survival and to improve the application and stability of the final product. Despite the relative high number of patents for biopesticides, only a few of them have materialized in a register for agricultural use. The excessive specificity in most cases and biosafety or environmental concerns in others are major limiting factors. Non-target effects may be possible in particular cases, such as displacement of beneficial microorganisms, allergenicity, toxinogencity (production of secondary metabolites toxic to plants, animals, or humans), pathogenicity (to plants or animals) by the agent itself or due to contaminants, or horizontal gene transfer of these characteristics to non-target microorganisms. However, these non-target effects should not be evaluated in an absolute manner, but relative to chemical control or the absence of any control of the target disease (for example, toxins derived from the pathogen). Consumer concerns about live microbes due to emerging food-borne diseases and bioterrorism do not help to create a socially receptive environment to microbial pesticides. The future of microbial pesticides is not only in developing new active ingredients based on microorganisms beneficial to plants, but in producing self-protected plants (so-called plant-incorporated pesticides) by transforming agronomically high-value crop plants with genes from biological control agents. PMID:12955583

Montesinos, Emilio

2003-12-01

67

Plant foods and plant-based diets: protective against childhood obesity?  

Microsoft Academic Search

The objective of this article is to review the epidemiologic literature examining the role of plant foods and plant-based diets in the pre- vention of childhood obesity. Available data suggest a protective ef- fect of ready-to-eat cereal on risk of obesity, although prospective studies are still needed. Studies on fruit and vegetables; grains other than cereal; high-protein foods, including beans,

PK Newby

2009-01-01

68

76 FR 36896 - Notice of Establishment of a New Plant Protection and Quarantine Stakeholder Registry  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Animal and Plant Health Inspection Service [Docket No...APHIS-2011-0059] Notice of Establishment of a New Plant Protection and Quarantine Stakeholder Registry AGENCY: Animal and Plant Health Inspection Service, USDA....

2011-06-23

69

45 CFR 670.25 - Designation of specially protected species of native mammals, birds, and plants.  

Code of Federal Regulations, 2012 CFR

...species of native mammals, birds, and plants. 670.25 Section 670.25 Public... CONSERVATION OF ANTARCTIC ANIMALS AND PLANTS Specially Protected Species of Mammals, Birds, and Plants 670.25 Designation of...

2012-10-01

70

Carbohydrates in plant immunity and plant protection: roles and potential application as foliar sprays  

PubMed Central

Increasing interest is devoted to carbohydrates for their roles in plant immunity. Some of them are elicitors of plant defenses whereas other ones act as signaling molecules in a manner similar to phytohormones. This review first describes the main classes of carbohydrates associated to plant immunity, their role and mode of action. More precisely, the state of the art about perception of PAMP, MAMP, and DAMP (Pathogen-, Microbe-, Damage-Associated Molecular Patterns) type oligosaccharides is presented and examples of induced defense events are provided. A particular attention is paid to the structure/activity relationships of these compounds. The role of sugars as signaling molecules, especially in plant microbe interactions, is also presented. Secondly, the potentialities and limits of foliar sprays of carbohydrates to stimulate plant immunity for crop protection against diseases are discussed, with focus on the roles of the leaf cuticle and phyllosphere microflora. PMID:25408694

Trouvelot, Sophie; Hloir, Marie-Claire; Poinssot, Benot; Gauthier, Adrien; Paris, Franck; Guillier, Christelle; Combier, Maud; Trd, Lucie; Daire, Xavier; Adrian, Marielle

2014-01-01

71

When defense backfires: Detrimental effect of a plants protective trichomes on an insect beneficial to the plant  

PubMed Central

The plant Mentzelia pumila (family Loasaceae) has leaves and stems densely covered with tiny hooked trichomes. The structures entrap and kill insects and therefore are most probably protective. But they are also maladaptive in that they incapacitate a coccinellid beetle (Hippodamia convergens) that preys upon an aphid enemy (Macrosiphum mentzeliae) of the plant. The adaptive benefit provided by the trichomes is evidently offset by a cost. PMID:9539750

Eisner, Thomas; Eisner, Maria; Hoebeke, E. Richard

1998-01-01

72

Effects of fire frequency on plant communities and landscape pattern in the Massif des Aspres (southern France)  

Microsoft Academic Search

Fire frequency can affect pattern and diversity in plant communities and landscapes. We had the opportunity to study changes due to recurring wildfires on the same sites over a period of 50 years in the Massif des Aspres (southern France). The study was carried out in areas occupied byQuercus suber andQ. ilex series. A comparison of historical and cartographical documents

Louis Trabaudl; Jean-Franois Galti

1996-01-01

73

Waste Isolation Pilot Plant Groundwater Protection Management Program Plan  

SciTech Connect

The DOE established the Groundwater Monitoring Program (GMP) (WP 02-1) to monitor groundwater resources at WIPP. In the past, the GMP was conducted to establish background data of existing conditions of groundwater quality and quantity in the WIPP vicinity, and to develop and maintain a water quality database as required by regulation. Today the GMP is conducted consistent with 204.1.500 NMAC (New MexicoAdministrative Code), "Adoption of 40 CFR [Code of Federal Regulations] Part 264,"specifically 40 CFR 264.90 through 264.101. These sections of 20.4.1 NMAC provide guidance for detection monitoring of groundwater that is, or could be, affected by waste management activities at WIPP. Detection monitoring at WIPP is designed to detect contaminants in the groundwater long before the general population is exposed. Early detection will allow cleanup efforts to be accomplished before any exposure to the general population can occur. Title 40 CFR Part 264, Subpart F, stipulates minimum requirements of Resource Conservation and Recovery Act of 1976 (42 United States Code [U.S.C.] 6901 et seq.) (RCRA) groundwater monitoring programs including the number and location of monitoring wells; sampling and reporting schedules; analytical methods and accuracy requirements; monitoring parameters; and statistical treatment of monitoring data. This document outlines how WIPP intends to protect and preserve groundwater within the WIPP Land Withdrawal Area (WLWA). Groundwater protection is just one aspect of the WIPP environmental protection effort. An overview of the entire environmental protection effort can be found in DOE/WIPP 99-2194, Waste Isolation Pilot Plant Environmental Monitoring Plan. The WIPP GMP is designed to statistically determine if any changes are occurring in groundwater characteristics within and surrounding the WIPP facility. If a change is noted, the cause will then be determined and the appropriate corrective action(s) initiated.

Washington Regulatory and Environmental Services

2005-07-01

74

N-acyl-homoserine lactones-producing bacteria protect plants against plant and human pathogens.  

PubMed

The implementation of beneficial microorganisms for plant protection has a long history. Many rhizobia bacteria are able to influence the immune system of host plants by inducing resistance towards pathogenic microorganisms. In this report, we present a translational approach in which we demonstrate the resistance-inducing effect of Ensifer meliloti (Sinorhizobium meliloti) on crop plants that have a significant impact on the worldwide economy and on human nutrition. Ensifer meliloti is usually associated with root nodulation in legumes and nitrogen fixation. Here, we suggest that the ability of S.?meliloti to induce resistance depends on the production of the quorum-sensing molecule, oxo-C14-HSL. The capacity to enhanced resistance provides a possibility to the use these beneficial bacteria in agriculture. Using the Arabidopsis-Salmonella model, we also demonstrate that the application of N-acyl-homoserine lactones-producing bacteria could be a successful strategy to prevent plant-originated infections with human pathogens. PMID:25234390

Hernndez-Reyes, Casandra; Schenk, Sebastian T; Neumann, Christina; Kogel, Karl-Heinz; Schikora, Adam

2014-11-01

75

Protect nuclear plant fasteners from boric acid corrosion  

SciTech Connect

Boric acid corrosion of pump and valve fasteners in pressurized water reactor (PWR) power plants can be prevented by implementing appropriate fastener steel replacement and extended inspections to detect and correct the cause of leakage. In this paper a three-phase corrosion protection program based on system operability, outage-related accessibility, and cost of fastener replacement versus maintenance frequency increase is presented. A selection criteria for fastener material is also presented. Degradation or failure of pressure retaining fasteners at pumps and valves has been reported in several areas exposed to leakage of closures in long-term service. The resulting boric acid corrosion experienced in PWR systems is defined as an accelerated process produced when water evaporates from leaking coolant. The primary detrimental effect of boric acid leakage is wastage (or general dissolution corrosion) of low-alloy carbon steel fasteners.

Moisidis, N.; Popescu, M.; Ratiu, M. (ABB Impell Corp. (US))

1992-03-01

76

Effective protective surveillance for waterside-located chemical plants  

NASA Astrophysics Data System (ADS)

Millions of citizens live and work in the dangerous proximity of chemical plants, at ports and along waterways, which are under-protected and whose security is under-regulated, according to findings of the Congressional Research Service (CRS). There is a new and intense focus on the security of the nation's critical infrastructure. Thanks to recent philosophy and policy shifts within our federal government, the alarming situations in which we find ourselves will be mitigated somewhat a) by setting priorities based on proper threat analysis that considers event likelihoods and consequential impacts, and b) by employing effective systems design and engineering that will make it possible to address the highest priority threats with affordable solutions. It is the latter concern that we address, especially as it is relates to design and engineering of solutions for maintaining vigilance night and day. We begin by reviewing the nature of the facilities we wish to protect, our assumptions, and an accepted framework for analysis. Next we outline a hypothetical design case involving a representative facility and a plausible design basis threat. We then derive requirements for surveillance and examine the interrelationships among key design variables. Finally, we describe a solution involving multiple sensor types coupled with intelligent video. The end result is a significant increase in interdiction probability with a minimum of required assets.

Love, John; Van Dover, Doug

2006-05-01

77

Aromatic plants in bird nests as a protection against blood-sucking flying insects?  

Microsoft Academic Search

The nest protection hypothesis suggests that some of the fresh plant material, brought by some bird species to their nests, contain secondary compounds that repel parasites or mask the chemical cues that parasites use to find the host. Corsican blue tits (Paruscaeruleus) bring pieces of several species of aromatic plants to the nest at dusk, suggesting a protection against nocturnal

Lucile Lafuma; Marcel M. Lambrechts; Michel Raymond

2001-01-01

78

Des Programmes de recherche  

E-print Network

'aléa sismique. La cartographie du risque de tsunami obtenue - véritable photographie instantanée de l chercheurs expliquent certains modes de propagation du tsunami le long des côtes thaïlandaises. Ainsi, la'élaboration des plans d'urbanisation des zones côtières et le maintien ou la réimplan- tation des protections

79

A hundred and more years of plant protection in the Netherlands  

Microsoft Academic Search

At the occasion of the Centenary of the Netherlands Society of Plant Pathology a reflection on past, present and future of\\u000a plant protection, the subject matter of the Society, was thought to be appropriate.\\u000a \\u000a Developments in plant protection are projected against a general stream of thought. Three turning points are distinguished\\u000a which can be seen as paradigm changes. The first

J. C. Zadoks

1991-01-01

80

The Riviere des Plante ophiolitic Melange; tectonic setting and melange formation in the Quebec Appalachians  

SciTech Connect

The Riviere des Plante ophiolitic Melange (RPOM) is the largest and best exposed of the three known ophiolitic melanges that contain blocks of Chain Lakes Massif (CLM). All three lie along the Baie Verte-Brompton line, which marks the suture between the continental rocks of the Humber zone and the oceanic rocks of the Dunnage zone. The ophiolitic melange is composed of: serpentinized ultramafic rocks, some of which are sheared and/or carbonatized; blocks of amphibolitized gabbro; basalt; volcanogenic breccia; and conglomerates. It also contains continental K-rich granitoid rocks and high-grade metamorphic (upper amphibolite facies) rocks. The RPOM is part of the Saint-Daniel Melange, an accretionary prism onto which the RPOM has been tectonically emplaced. The CLM was part of a terrane accreted to the Laurentian margin during the Taconian orogeny. Blocks of the CLM along the Baie Verte-Brompton line are interpreted as fragments of this terrane caught within the suture zone. It is proposed that the CLM could be the equivalent of Grenville-derived greywacke originally laid down during the phase of continental rifting that led to the formation of the Iapetus Ocean and was later tectonized and metamorphosed during the Taconian and Acadian orogenies. The RPOM would represent the relic of a serpentinite diapir that rose within a deep oceanic fault. The presence of continental rocks like the CLM suggest that a continental magmatic arc was put in contact with an oceanic crust along this fault.

Cousineau, P.A. (Universite du Quebec, Chicoutimi (Canada))

1991-01-01

81

Les eaux souterraines reprsentent environ 23% des rserves en eau douce de la plante,  

E-print Network

corollaire d'une intrusion d'eau de mer dans les nappes littorales(1) . Quant à la qualité des eaux, elle réduire la dégradation des nappes phréatiques. les cahiers de l'INRIARendez-vous avec les sciences et

Boyer, Edmond

82

Cathodic protection for Saudi Arabia's Ghazlan power generating plant  

SciTech Connect

Design and construction of a retrofitted, impressed current distributed deep groundbed cathodic protection system for Saudi Arabia's newest electric power generating station are presented. Details of construction, precommissioning and post-commissioning findings are discussed. Several problems associated with simultaneously protecting large amounts of bare and coated surfaces in conjunction with an extensive copper ground grid are resolved.

Leavenworth, J.M.

1984-09-01

83

Biochemical analysis of plant protection afforded by a nonpathogenic endophytic mutant of Colletotrichum magna  

SciTech Connect

A nonpathogenic mutant of Colletotrichum magna (path-1) was previously shown to protect watermelon (Citrullus lanatus) and cucumber (Cucumis sativus) seedlings from anthracnose disease elicited by wild-type C. magna. Disease protection was observed in stems of path-1-colonized cucurbits but not in cotyledons, indicating that path-1 conferred tissue-specific and/or localized protection. Plant biochemical indicators of a localized and systemic (peroxidase, phenylalanine ammonia-lyase, lignin, and salicylic acid) plant-defense response were investigated in anthracnose-resistant and-susceptible cultivars of cucurbit seedlings exposed to four treatments: (1) water (control), (2) path-1 conidia, (3) wild-type conidia, and (4) challenge conditions (inoculation into path-1 conidia for 48 h and then exposure to wild-type conidia). Collectively, these analyses indicated that disease protection in path-1-colonized plants was correlated with the ability of these plants to mount a defense response more rapidly and to equal or greater levels than plants exposed to wild-type C. magna alone. Watermelon plants colonized with path-1 were also protected against disease caused by Colletotrichum orbiculare and Fusarium oxysporum. A model based on the kinetics of plant-defense activation is presented to explain the mechanism of path-1-conferred disease protection.

Redman, R.S.; Rodriguez, R.J. (Geological Survey, Seattle, WA (United States) Univ. of Washington, Seattle, WA (United States). Dept. of Botany); Clifton, D.R.; Morrel, J.; Brown, G. (Geological Survey, Seattle, WA (United States)); Freeman, S. (Volcani Center, Bet Dagan (Israel). Dept. of Plant Pathology)

1999-02-01

84

Novel enabling technologies of gene isolation and plant transformation for improved crop protection  

SciTech Connect

Meeting the needs of agricultural producers requires the continued development of improved transgenic crop protection products. The completed project focused on developing novel enabling technologies of gene discovery and plant transformation to facilitate the generation of such products.

Torok, Tamas

2013-02-04

85

52 Plant Protection Quarterly Vol.18(2) 2003 The red coconut scale (Furcaspis oceanica  

E-print Network

52 Plant Protection Quarterly Vol.18(2) 2003 Summary The red coconut scale (Furcaspis oceanica agent of the red coconut scale. Keywords: Scale insect, Furcaspis oceanica, Homoptera, Diaspididae, parasitoid, Adelencyrtus oceanicus, Hy- menoptera, Encyrtidae, coconut, biologi- cal control, Guam

Reddy, Gadi VP

86

Past and present effectiveness of protected areas for conservation of naturally and anthropogenically rare plant species.  

PubMed

The Global Strategy of Plant Conservation states that at least 60% of threatened plant species should be within protected areas. This goal has been met in some regions with long traditions of plant protection. We used gap analysis to explore how particular groups of species of conservation interest, representing different types of natural or anthropogenic rarity, have been covered by protected areas on a national scale in Estonia during the last 100 years. Species-accumulation curves indicated that plant species that are naturally rare (restricted global or local distribution, always small populations, or very rare habitat requirements) needed almost twice as many protected areas to reach the 60% target as plant species that are rare owing to lack of suitable management (species depending on grassland management, moderate forest disturbances, extensive traditional agriculture, or species potentially threatened by collecting). Temporal analysis of the establishment of protected areas suggested that grouping plant species according to the predominant cause of rarity accurately reflected the history of conservation decision making. Species found in very rare habitats have previously received special conservation attention; species dependent on traditional extensive agriculture have been largely ignored until recently. Legislative initiative and new nature-protection schemes (e.g., Natura 2000, network of protected areas in the European Union) have had a positive influence on all species groups. Consequently, the species groups needing similar action for their conservation are sensitive indicators of the effectiveness of protected-area networks. Different species groups, however, may not be uniformly conserved within protected areas, and all species groups should fulfill the target of 60% coverage within protected areas. PMID:19128324

Vellak, Ain; Tuvi, Eva-Liis; Reier, lle; Kalamees, Rein; Roosaluste, Elle; Zobel, Martin; Prtel, Meelis

2009-06-01

87

Safety and Advantages of Bacillus thuringiensis-Protected Plants to Control Insect Pests  

Microsoft Academic Search

Plants modified to express insecticidal proteins from Bacillus thuringiensis (referred to as Bt-protected plants) provide a safe and highly effective method of insect control. Bt-protected corn, cotton, and potato were introduced into the United States in 1995\\/1996 and grown on a total of approximately 10 million acres in 1997, 20 million acres in 1998, and 29 million acres globally in

Fred S. Betz; Bruce G. Hammond; Roy L. Fuchs

2000-01-01

88

Radiological protection instrumentation and R and D requirements for tritium plants used in fusion technology  

Microsoft Academic Search

The requirements for radiological protection of a tritium plant planned for the Joint European Torus (JET) are considered. This includes the instrumentation to provide adequate monitoring at the low design level envisaged. Looking further into the future, the radiological protection (RP) problems identified by an International Atomic Energy Agency (IAEA) Working Group are outlined with a view to discussing how

J. A. B

1985-01-01

89

Probabilistic Safety Assessment of External Flooding Protection for Nuclear Power Plants in Germany  

Microsoft Academic Search

Methods to systematically analyse existing nuclear power plants (NPP) regarding the adequacy of their existing protection equipment against external hazards, e.g. flooding, can be of deterministic as well as probabilistic nature. In the past the adequacy of the protection measures has been assessed only on a deterministic basis. The German regulatory body has issued probabilistic safety assessment (PSA) guidelines, which

Heinz Peter Berg; Rudolf Goertz; Thomas Froehmel; Christian Winter

2008-01-01

90

Filters and protection reactance for distortion compensation in low voltage plants  

Microsoft Academic Search

Low-voltage electrical plants supplying static power converters are often affected by current and voltage harmonic distortion. The effectiveness of harmonic filters and protection reactance in compensating the distortion factor and, in general, nonactive power, is shown by theoretical and experimental results. Good agreement of voltage notch and distortion factor estimates, after filter and protection reaction insertion, with experimental data measured

G. C. Montanari; M. Loggini

1988-01-01

91

77 FR 47591 - Notice of Request for Extension of Approval of an Information Collection; Plant Protection and...  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF AGRICULTURE Animal and Plant Health Inspection Service [Docket No...Approval of an Information Collection; Plant Protection and Quarantine Stakeholder...Satisfaction Survey AGENCY: Animal and Plant Health Inspection Service, USDA....

2012-08-09

92

Tsunami protection of coastal nuclear power plants in the United States  

Microsoft Academic Search

Protection from potential tsunami effects is a design criterion for coastal nuclear power plants, especially on the U.S. Pacific Coast and in Puerto Rico. Because of the uncertainties involved in the probabilistic approach, the U.S. Nuclear Regulatory Commission uses a deterministic approach to conservatively estimate tsunami runup, drawdown, and the resulting effects at proposed nuclear power plant sites. However, because

Lewis G. Hulman; William S. Bivins; Myron H. Fliegel

1978-01-01

93

Distribution, cenotic characteristic and protection of habitats of plants of the Bern Convention in East Polesye  

Microsoft Academic Search

The author reports on the results of the studies on distribution, cenotic characteristic and analysis of protection of habitats of plants of the Bern Convention in East Polesye. In 1995- 2006 the species of plants, which are given in the list of Appendix I of \\

OLEKSANDR LUKASH

94

Phytochemicals of Brassicaceae in plant protection and human health Influences of climate, environment and agronomic practice  

Microsoft Academic Search

In this review, we provide an overview of the role of glucosinolates and other phytochemical compounds present in the Brassicaceae in relation to plant protection and human health. Current knowledge of the factors that influence phytochemical content and profile in the Brassicaceae is also summarized and multi-factorial approaches are briefly discussed. Variation in agronomic conditions (plant species, cultivar, developmental stage,

Maria Bjrkman; Ingeborg Klingen; Andrew N. E. Birch; Atle M. Bones; Toby J. A. Bruce; Tor J. Johansen; Richard Meadow; Jrgen Mlmann; Randi Seljsen; Lesley E. Smart; Derek Stewart

2011-01-01

95

Control and Protection of Wind Power Plants with VSC-HVDC Connection  

E-print Network

Control and Protection of Wind Power Plants with VSC-HVDC Connection By Sanjay K Chaudhary A dissertation submitted to The Faculty of Engineering, Science, and Medicine, Aalborg University in partial Wind power plants are the fastest growing source of renewable energy. The European Union expects

Chaudhary, Sanjay

96

Effects of Tropospheric Ozone on Potato Plants Protected by the Antioxidant Diphenylamine (DPA)  

Microsoft Academic Search

To assess the protective effects of diphenylamine (DPA) on yield, DPA- and non-DPA-treated plants of potatoes (Solanum tuberosum cv. Agria) were exposed to ambient air at a rural site in Spain. Concentrations of ambient ozone were high at the site. Untreated plants served as controls. The DPA treatments did not have a significant effect on Chl content. The treatment with

J. L. Carrasco-Rodriguez; A. Asensi-Fabado; S. Del Valle-Tascon

2005-01-01

97

Spines protect plants against browsing by small climbing mammals  

Microsoft Academic Search

The presence of spines on woody plants has been shown to limit the loss of foliage to large mammalian browsers by restricting\\u000a both bite size and biting rate. We tested the hypothesis that plant spines are also an effective defense against browsing\\u000a by small mammals, such as rodents, that climb within the canopy of shrubs to harvest fruits, seeds, and

Susan M. Cooper; Tim F. Ginnett

1998-01-01

98

Effect of seed coating protectants on iron deficiency chlorosis and sorghum plant growth  

Microsoft Academic Search

Chemical coatings on seed are commonly used in the grain sorghum seed industry to protect plants against herbicide damage and to inoculate young plants against certain disease. In this study, grain sorghum grown from seed safened with CGA?92194 ([(l,3?dioxolo?2?yl?methoxy)?imino] benzene?acetonitrile} against injury from the herbicide, metolachlor, was studied for seedling vigor, seedling emergence, plant growth, and Fe?deficiency chlorosis. Other seed

J. E. Matocha

1992-01-01

99

Salicylic Acid Protects Potato Plants-from Phytoplasma-associated Stress and Improves Tuber Photosynthate Assimilation  

Microsoft Academic Search

During a pathogen attack, cells triggers the overproduction of reactive oxygen species causing oxidative stress and physiological\\u000a damage. Plants develop strategies using these reactive molecules for protection against pathogen attack. Phytoplasma are bacteria\\u000a lacking cell walls that inhabit plant phloem and reduce yield, tuber quality, and commercial harvest value. Sprayed salicylic\\u000a acid (SA) activated plant defense response against phytoplasma attack

Silvia Snchez-Rojo; Humberto A. Lpez-Delgado; Martha E. Mora-Herrera; Humberto I. Almeyda-Len; Hilda Araceli Zavaleta-Mancera; David Espinosa-Victoria

2011-01-01

100

Protection of tomato plants against fusaric acid by resistance induction  

Microsoft Academic Search

Objectives: The rhizobacteria Bacillus sphaericus B43, Pseudomonas fluorescens T58, and P. putida 53 are able to induce systemic resistance (ISR) against Fusarium oxysporum f.sp. lycopersici in tomato. This study investigated if ISR reduced damage by the toxin Fusaric Acid (FA) that is produced by F. oxysporum. Methodology and Results: Bacteria were applied to the rhizosphere of tomato plants. Chlorophyll content

Maina FM; Hauschild R

101

1. INTRODUCTION The protection of crops against plant pests  

E-print Network

. Chemicals may elicit various effects in biological organisms through their interaction with numerous used in numerous types of plant treatments including spraying, seed dressing, baits and granules molecular targets that can induce lethal and adverse sublethal effects (Sattelle and Yamamoto 1988

102

Amlioration des plantes (synthse) Les cultures in vitro chez les lgumineuses  

E-print Network

dans l'alimentation humaine. Parmi les principales, les haricots couvrent 25,4 Mha et le pois chiche 10,2 Mha. Puis viennent le pois, la fève, le lupin ainsi que les Vigna. Dans ces régions, les progrès des

Paris-Sud XI, Université de

103

Biodegradation and plant protection from the herbicide 2,4-D by plant-microbial associations in cotton production systems.  

PubMed

A significant "biosafening" protection of plants from the effect of 2,4-D in plant-microbial associations has been demonstrated in this study. The 2,4-D-degrading plasmid, pJP4 was transferred into Rhizobium sp. CB1024, which nodulates Dolichos lablab, and Azospirillum brasilense Sp7 carrying a nifA-lacZ gene marker, which can colonize cotton roots. Both transconjugants degraded 2,4-D in pure culture via cometabolism up to 50 microg mL(-1). When the transconjugants were inoculated onto Dolichos lablab and cotton, respectively, such plants were resistant to this herbicide when the nutrient solution was treated with 2,4-D up to 10 microg mL(-1) for Dolichos lablab and 0.5 microg mL(-1) for cotton. Plants inoculated with wild-type strains were dead (Dolichos lablab) or dying (cotton). Because cotton is more sensitive to herbicides, only incomplete protection of plants was achieved with the transconjugant. Improving the effect of colonization of Azospirillum on cotton roots may be critical for a complete degradation and plant protection. The transconjugant of Rhizobium sp. CB1024 was still able to nodulate Dolichos lablab, N(2)-fixing activity was only slightly affected. Other pesticide-degrading capacities may also be inserted into those plant-associated bacterial strains for the degradation of these chemicals by plant-microbial associations. Whether such systems will be successful when applied in the field with competition from other bacteria is being examined. (c) 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 53: 513-519, 1997. PMID:18636407

Feng, L; Kennedy, I R

1997-06-20

104

Generation of protective immune response against anthrax by oral immunization with protective antigen plant-based vaccine.  

PubMed

In concern with frequent recurrence of anthrax in endemic areas and inadvertent use of its spores as biological weapon, the development of an effective anthrax vaccine suitable for both human and veterinary needs is highly desirable. A simple oral delivery through expression in plant system could offer promising alternative to the current methods that rely on injectable vaccines extracted from bacterial sources. In the present study, we have expressed protective antigen (PA) gene in Indian mustard by Agrobacterium-mediated transformation and in tobacco by plastid transformation. Putative transgenic lines were verified for the presence of transgene and its expression by molecular analysis. PA expressed in transgenic lines was biologically active as evidenced by macrophage lysis assay. Intraperitoneal (i.p.) and oral immunization with plant PA in murine model indicated high serum PA specific IgG and IgA antibody titers. PA specific mucosal immune response was noted in orally immunized groups. Further, antibodies indicated lethal toxin neutralizing potential in-vitro and conferred protection against in-vivo toxin challenge. Oral immunization experiments demonstrated generation of immunoprotective response in mice. Thus, our study examines the feasibility of oral PA vaccine expressed in an edible plant system against anthrax. PMID:24548460

Gorantala, Jyotsna; Grover, Sonam; Rahi, Amit; Chaudhary, Prerna; Rajwanshi, Ravi; Sarin, Neera Bhalla; Bhatnagar, Rakesh

2014-04-20

105

Influence des caractristiques physiques du substrat sur les systmes racinaires de plantes ornementales  

E-print Network

connues : tourbe blonde, sable, perlite, vermiculite, avec des boutures de Pelargonium x hortorum. La (sable, perlite); ce qui s'explique par une résistance à la pénétration plus élevée. Une orientation du sable et de la perlite, qui empê- chent l'action du géotropisme de se manifester comme dans la

Paris-Sud XI, Université de

106

Turbine screen protects fish at PG and E hydroelectric plant  

SciTech Connect

Hazards to fish from small hydro plants has less to do with head height than with runner elevation and mechanical injury from collision with objects. The need to keep fish out of turbines led to the design of a louvered screen that passes migrating fish by the turbine. A fish holding and counting system showed that about 75% of the salmon and steelhead were guided around the turbines. Earlier tests had determined that only 10% of the fish actually passing through the turbine flow were killed. A trash rack prevents clogging and maintains water pressure on the turbine. The screen can be modified to either a vertical or a horizontal plane. 2 figures. (DCK)

Eicher, G.

1981-08-01

107

Establishment of radiation protection boundaries for nuclear power plants.  

PubMed

Activities involving the possession and use of radioactive material require the application of controls to ensure the health and safety of the worker and general public. One of the first steps in adequately controlling any licensed activity is the establishment of zones and boundaries that will exist for purposes of restricting or regulating personnel radiological exposure. Title 10 of the Code of Federal Regulations, Part 20 (10 CFR 20) defines the "restricted area" (RA) and prescribes the administrative and radiological protection controls pertinent to the RA. For nuclear power facilities, the determination of the physical relation of the RA boundary with other physical or administrative boundaries, such as the site boundary, the radiologically controlled area (RCA), and the exclusion area boundary, must be based on an evaluation that considers all applicable federal requirements and limits for each zone or boundary contained within or interfacing with the RA. This paper presents a discussion of the factors that should be considered and an evaluation methodology that can be utilized based on the generation of two-dimensional isodoses. PMID:2019508

Nicoll, R M

1991-05-01

108

Priming by rhizobacterium protects tomato plants from biotrophic and necrotrophic pathogen infections through multiple defense mechanisms  

Microsoft Academic Search

A selected strain of rhizobacterium, Pseudomonas putida strain LSW17S (LSW17S), protects tomato plants (Lycopersicon esculentum L. cv. Seokwang) from bacterial speck by biotrophic Pseudomonas syringae pv. tomato strain DC3000 (DC3000) and bacterial wilt by necrotrophic Ralstonia solanacearum KACC 10703 (Rs10703). To investigate defense mechanisms induced by LSW17S in tomato plants, transcription patterns of pathogenesis-related\\u000a (PR) genes and H2O2 production were

Il-Pyung Ahn; Sang-Woo Lee; Min Gab Kim; Sang-Ryeol Park; Duk-Ju Hwang; Shin-Chul Bae

2011-01-01

109

DES PLANTES Manuel des ventes  

E-print Network

la nouvelle Calédonie avec sa flore endémique dont celle du maquis minier et de la forêt sèche. La plus d'un millier d'animaux, de la mygale à l'orang-outan, du petit panda à la tortue géante... De

110

INTRODUCTION Cocaine is a neurotoxin that protects the coca plant (Erythroxylem  

E-print Network

163 INTRODUCTION Cocaine is a neurotoxin that protects the coca plant (Erythroxylem spp.) from herbivory by critically disrupting insect motor control (Nathanson et al., 1993). In humans, cocaine is also reward' (Sullivan et al., 2008). Solutions to this paradox often propose that cocaine evolved to deter

Ha, Taekjip

111

Seaweed Polysaccharides and Derived Oligosaccharides Stimulate Defense Responses and Protection Against Pathogens in Plants  

PubMed Central

Plants interact with the environment by sensing non-self molecules called elicitors derived from pathogens or other sources. These molecules bind to specific receptors located in the plasma membrane and trigger defense responses leading to protection against pathogens. In particular, it has been shown that cell wall and storage polysaccharides from green, brown and red seaweeds (marine macroalgae) corresponding to ulvans, alginates, fucans, laminarin and carrageenans can trigger defense responses in plants enhancing protection against pathogens. In addition, oligosaccharides obtained by depolymerization of seaweed polysaccharides also induce protection against viral, fungal and bacterial infections in plants. In particular, most seaweed polysaccharides and derived oligosaccharides trigger an initial oxidative burst at local level and the activation of salicylic (SA), jasmonic acid (JA) and/or ethylene signaling pathways at systemic level. The activation of these signaling pathways leads to an increased expression of genes encoding: (i) Pathogenesis-Related (PR) proteins with antifungal and antibacterial activities; (ii) defense enzymes such as pheylalanine ammonia lyase (PAL) and lipoxygenase (LOX) which determine accumulation of phenylpropanoid compounds (PPCs) and oxylipins with antiviral, antifugal and antibacterial activities and iii) enzymes involved in synthesis of terpenes, terpenoids and/or alkaloids having antimicrobial activities. Thus, seaweed polysaccharides and their derived oligosaccharides induced the accumulation of proteins and compounds with antimicrobial activities that determine, at least in part, the enhanced protection against pathogens in plants. PMID:22363237

Vera, Jeannette; Castro, Jorge; Gonzalez, Alberto; Moenne, Alejandra

2011-01-01

112

The Main Environmental Driving Forces of the Invasive Plant Species in the Romanian Protected Areas  

Microsoft Academic Search

The invasive flora of Romania currently includes more than 400 species (13.87% of the Romanian flora) and according to the third National Report of Biological Diversity Convention, six of them are tree species. Within the protected areas, some of the most representative invasive plant species (IPS) are: Amorpha fruticosa in Balta Mica a Brailei National Park, Ailanthus altissima in Muntii

Monica Dumitrascu; Ines Grigorescu; Mihaela Nastase; Carmen Dragota; Gheorghe Kucsicsa

2010-01-01

113

Protective effects of three extracts from Antarctic plants against ultraviolet radiation in several biological models  

Microsoft Academic Search

The photoprotective effect of the methanolic extracts of three Antarctic plant species Deschampsia antarctica Desv., Colobanthus quitensis (Kunth) Bartl., and Polytrichum juniperinum Hedw. against UV-induced DNA damage was investigated in hamster lung fibroblasts (V79 cells) and in a biomonitor organism Helix aspersas, using comet assay. The protective, mutagenic, and antimutagenic profiles of these extracts were also evaluated using haploid strains

Betina Kappel Pereira; Renato Moreira Rosa; Juliana da Silva; Temenouga Nikolova Guecheva; Iuri Marques de Oliveira; Martus Ianistcki; Vincius Cosmos Benvegn; Gabriel Vasata Furtado; Alexandre Ferraz; Marc Franois Richter; Ndia Schroder; Antnio Batista Pereira; Joo Antonio Pgas Henriques

2009-01-01

114

FIELD ASSESSMENT OF INSECT RESISTANCE MANAGEMENT (IRM) FOR PLANT-INCORPORATED-PROTECTANTS (PIPS)  

EPA Science Inventory

The development of target pest resistance to the products of transgene[s], e.g., plant-incorporated protectants is a serious risk both to the sustainability of these crops and to the wider utility of environmentally soft microbial pesticides. Therefore, the EPA requires growers...

115

Seaweed polysaccharides and derived oligosaccharides stimulate defense responses and protection against pathogens in plants.  

PubMed

Plants interact with the environment by sensing "non-self" molecules called elicitors derived from pathogens or other sources. These molecules bind to specific receptors located in the plasma membrane and trigger defense responses leading to protection against pathogens. In particular, it has been shown that cell wall and storage polysaccharides from green, brown and red seaweeds (marine macroalgae) corresponding to ulvans, alginates, fucans, laminarin and carrageenans can trigger defense responses in plants enhancing protection against pathogens. In addition, oligosaccharides obtained by depolymerization of seaweed polysaccharides also induce protection against viral, fungal and bacterial infections in plants. In particular, most seaweed polysaccharides and derived oligosaccharides trigger an initial oxidative burst at local level and the activation of salicylic (SA), jasmonic acid (JA) and/or ethylene signaling pathways at systemic level. The activation of these signaling pathways leads to an increased expression of genes encoding: (i) Pathogenesis-Related (PR) proteins with antifungal and antibacterial activities; (ii) defense enzymes such as pheylalanine ammonia lyase (PAL) and lipoxygenase (LOX) which determine accumulation of phenylpropanoid compounds (PPCs) and oxylipins with antiviral, antifugal and antibacterial activities and iii) enzymes involved in synthesis of terpenes, terpenoids and/or alkaloids having antimicrobial activities. Thus, seaweed polysaccharides and their derived oligosaccharides induced the accumulation of proteins and compounds with antimicrobial activities that determine, at least in part, the enhanced protection against pathogens in plants. PMID:22363237

Vera, Jeannette; Castro, Jorge; Gonzalez, Alberto; Moenne, Alejandra

2011-12-01

116

PLANT INVASIONS IN PROTECTED AREAS AT MULTIPLE SCALES: LINARIA VULGARIS (SCROPHULARIACEAE) IN THE WEST YELLOWSTONE AREA  

Microsoft Academic Search

Invasive alien plants have long been recognized as a threat to low-elevation, disturbed environments, but the case of Linaria vulgaris Mill. in Yellowstone National Park and Gallatin National Forest shows that invasions can also spread to high-elevation natural reserves. Because invasions in protected areas are a product of complex processes occurring over a broad range of scales, we argue that

Anbal Pauchard; Paul B. Alaback; Eric G. Edlund

117

Hexanoic acid protects tomato plants against Botrytis cinerea by priming defence responses and reducing oxidative stress.  

PubMed

Treatment with the resistance priming inducer hexanoic acid (Hx) protects tomato plants from Botrytis cinerea by activating defence responses. To investigate the molecular mechanisms underlying hexanoic acid-induced resistance (Hx-IR), we compared the expression profiles of three different conditions: Botrytis-infected plants (Inf), Hx-treated plants (Hx) and Hx-treated + infected plants (Hx+Inf). The microarray analysis at 24?h post-inoculation showed that Hx and Hx+Inf plants exhibited the differential expression and priming of many Botrytis-induced genes. Interestingly, we found that the activation by Hx of other genes was not altered by the fungus at this time point. These genes may be considered to be specific targets of the Hx priming effect and may help to elucidate its mechanisms of action. It is noteworthy that, in Hx and Hx+Inf plants, there was up-regulation of proteinase inhibitor genes, DNA-binding factors, enzymes involved in plant hormone signalling and synthesis, and, remarkably, the genes involved in oxidative stress. Given the relevance of the oxidative burst occurring in plant-pathogen interactions, the effect of Hx on this process was studied in depth. We showed by specific staining that reactive oxygen species (ROS) accumulation in Hx+Inf plants was reduced and more restricted around infection sites. In addition, these plants showed higher ratios of reduced to oxidized glutathione and ascorbate, and normal levels of antioxidant activities. The results obtained indicate that Hx protects tomato plants from B.?cinerea by regulating and priming Botrytis-specific and non-specific genes, preventing the harmful effects of oxidative stress produced by infection. PMID:24320938

Finiti, Ivan; de la O Leyva, Mara; Vicedo, Begonya; Gmez-Pastor, Roco; Lpez-Cruz, Jaime; Garca-Agustn, Pilar; Real, Maria Dolores; Gonzlez-Bosch, Carmen

2014-08-01

118

Amlioration des plantes Effets du mthomyl sur les tissus de mas  

E-print Network

. The sensitivity to methomyl appears as a specific marker for the Texas cytoplasm. The regeneration of plants has/; Fig. 2). The regenerated plants with normal cytoplasm on the basic medium (Table I) containing 36 p

Paris-Sud XI, Université de

119

The Effect of a Digital Learning Environment on Children's Conceptions about the Protection of Endemic Plants  

ERIC Educational Resources Information Center

This study presents the results of a pilot learning intervention for improving children's ideas about plant protection. The research was executed in two phases. The first phase aimed at exploring children's ideas about plant protection. These ideas were taken into account for the design and development of a digital learning environment.

Petrou, Stella; Korfiatis, Konstantinos

2013-01-01

120

Methods to Estimate Aggregate Protected Soil Organic Carbon, 2: Does the Grinding of the Plant Residues Affect the Estimations of the Aggregate Protected Soil Organic Carbon?  

Microsoft Academic Search

A method to estimate the amount of soil organic carbon (SOC) physically protected within macroaggregates (>200 ?m) consists of crushing soil samples and measuring the following SOC mineralization increase. This study investigated the effect of grinding the plant residues during soil crushing on the calculated amount of the protected SOC on two tropical soils (Arenosol and Ferralsol). Incubations of crushed

T. Chevallier; E. Blanchart; J. Toucet; M. Bernoux

2011-01-01

121

Indigenous Arbuscular Mycorrhizal Fungal Assemblages Protect Grassland Host Plants from Pathogens  

PubMed Central

Plant roots can establish associations with neutral, beneficial and pathogenic groups of soil organisms. Although it has been recognized from the study of individual isolates that these associations are individually important for plant growth, little is known about interactions of whole assemblages of beneficial and pathogenic microorganisms associating with plants. We investigated the influence of an interaction between local arbuscular mycorrhizal (AM) fungal and pathogenic/saprobic microbial assemblages on the growth of two different plant species from semi-arid grasslands in NE Germany (Mallnow near Berlin). In a greenhouse experiment each plant species was grown for six months in either sterile soil or in sterile soil with one of three different treatments: 1) an AM fungal spore fraction isolated from field soil from Mallnow; 2) a soil pathogen/saprobe fraction consisting of a microbial community prepared with field soil from Mallnow and; 3) the combined AM fungal and pathogen/saprobe fractions. While both plant species grew significantly larger in the presence of AM fungi, they responded negatively to the pathogen/saprobe treatment. For both plant species, we found evidence of pathogen protection effects provided by the AM fungal assemblages. These results indicate that interactions between assemblages of beneficial and pathogenic microorganisms can influence the growth of host plants, but that the magnitude of these effects is plant species-specific. PMID:22110635

Wehner, Jeannine; Antunes, Pedro M.; Powell, Jeff R.; Caruso, Tancredi; Rillig, Matthias C.

2011-01-01

122

An ant's-eye view of an ant-plant protection mutualism.  

PubMed

Ant protection of extrafloral nectar (EFN)-secreting plants is a common form of mutualism found in most habitats around the world. However, very few studies have considered these mutualisms from the ant, rather than the plant, perspective. In particular, a whole-colony perspective that takes into account the spatial structure and nest arrangement of the ant colonies that visit these plants has been lacking, obscuring when and how colony-level foraging decisions might affect tending rates on individual plants. Here, we experimentally demonstrate that recruitment of Crematogaster opuntiae (Buren) ant workers to the EFN-secreting cactus Ferocactus wislizeni (Englem) is not independent between plants up to 5 m apart. Colony territories of C. opuntiae are large, covering areas of up to 5,000 m(2), and workers visit between five and 34 EFN-secreting barrel cacti within the territories. These ants are highly polydomous, with up to 20 nest entrances dispersed throughout the territory and interconnected by trail networks. Our study demonstrates that worker recruitment is not independent within large polydomous ant colonies, highlighting the importance of considering colonies rather than individual workers as the relevant study unit within ant/plant protection mutualisms. PMID:23515612

Lanan, M C; Bronstein, J L

2013-07-01

123

Selenium accumulation protects plants from herbivory by Orthoptera via toxicity and deterrence.  

PubMed

To investigate whether selenium (Se) accumulation in plants provides a chemical defense against generalist insect herbivores, the feeding preference and performance of a mix of orthopteran species were investigated. The selenium hyperaccumulator Stanleya pinnata and accumulator Brassica juncea were used in herbivory studies in the laboratory, and S. pinnata was also used in a manipulative field experiment. In laboratory studies, both crickets and grasshoppers avoided plants pretreated with selenate, while those given no choice died after eating leaves with elevated Se (447 +/- 68 and 230 +/- 68 microg Se g(-1) DW, respectively). B. juncea has previously been shown to accumulate selenate, while S. pinnata hyperaccumulates methyl-selenocysteine. Thus, these findings demonstrate that both inorganic and organic forms of selenium protect plants from herbivory. Grasshoppers fed S. pinnata contained methylselenocysteine in their midgut and absorbed this form into surrounding tissues. In a manipulative field experiment, methylselenocysteine protected S. pinnata from invertebrate herbivory and increased its long-term survival rate over an entire growth season. * In native habitats of selenium hyperaccumulators, orthopterans represent a major group of insect herbivores. Protection offered by organic selenium accumulation against these herbivores may have promoted the evolution of selenium hyperaccumulation in plants. PMID:17635224

Freeman, John L; Lindblom, Stormy Dawn; Quinn, Colin F; Fakra, Sirine; Marcus, Matthew A; Pilon-Smits, Elizabeth A H

2007-01-01

124

Ethnobotanical study of medicinal plants used in Arjan Parishan protected area in Fars Province of Iran  

PubMed Central

Objective : Today, medicinal plants are widely used in remedies for several ailments and improvement of human health because of their pharmaceutical properties. This study aimed to document important useful medicinal plants and their medicinal characteristics for treatment of human ailments in the Arjan _ Parishan protected area in Fars province of Iran during 2010-2012. Materials and Methods : Data were obtained using direct interviews with 80 informants particularly those who were more familiar with the herbs and their medicinal properties. Collected plants were recognized and families, genera, and species determined using indispensable references. In this paper, scientific name, local name, parts used, and ways of application and ailments treated using traditional medicinal plant species have been provided. Results : We documented 85 plant species belonging to 39 families and 78 genera used for treating ailments. Among which, Asteraceae with 13 species was the most frequently used family and fruits and leaves were the favored parts for local users. Our results indicated that in this area, the highest compliance in the use of plants in treating ailments were related to the intestinal digestive system (40.8%). Conclusion : The present study is the first contribution to the ethnobotany of this region. Our results showed that some plants are used for medicinal purposes in this region, either for the same or for different purposes. Generally, the results of the present investigation can be used as a basis for selecting useful medicinal plants and also help to preserve precious information that may otherwise be lost to future generations. PMID:25386404

Dolatkhahi, Mehdi; Dolatkhahi, Ali; Nejad, Javad Bagher

2014-01-01

125

Ethnobotanical study of medicinal plants used in Arjan - Parishan protected area in Fars Province of Iran.  

PubMed

Objective : Today, medicinal plants are widely used in remedies for several ailments and improvement of human health because of their pharmaceutical properties. This study aimed to document important useful medicinal plants and their medicinal characteristics for treatment of human ailments in the Arjan (_) Parishan protected area in Fars province of Iran during 2010-2012. Materials and Methods : Data were obtained using direct interviews with 80 informants particularly those who were more familiar with the herbs and their medicinal properties. Collected plants were recognized and families, genera, and species determined using indispensable references. In this paper, scientific name, local name, parts used, and ways of application and ailments treated using traditional medicinal plant species have been provided. Results : We documented 85 plant species belonging to 39 families and 78 genera used for treating ailments. Among which, Asteraceae with 13 species was the most frequently used family and fruits and leaves were the favored parts for local users. Our results indicated that in this area, the highest compliance in the use of plants in treating ailments were related to the intestinal digestive system (40.8%). Conclusion : The present study is the first contribution to the ethnobotany of this region. Our results showed that some plants are used for medicinal purposes in this region, either for the same or for different purposes. Generally, the results of the present investigation can be used as a basis for selecting useful medicinal plants and also help to preserve precious information that may otherwise be lost to future generations. PMID:25386404

Dolatkhahi, Mehdi; Dolatkhahi, Ali; Nejad, Javad Bagher

2014-11-01

126

Coil protection for a utility scale superconducting magnetic energy storage plant  

SciTech Connect

Superconducting Magnetic Energy Storage (SMES) is proposed for electric utility load leveling. Attractive costs, high diurnal energy efficiency (greater than or equal to 92%), and rapid response are advantages relative to other energy storage technologies. Recent industry-led efforts have produced a conceptual design for a 5000 MWh/1000 MW energy storage plant which is technically feasible at commercially attractive estimated costs. The SMES plant design includes a protection system which prevents damage to the magnetic coil if events require a rapid discharge of stored energy. This paper describes the design and operation of the coil protection system, which is primarily passive and uses the thermal capacity of the coil itself to absorb the stored electromagnetic energy.

Loyd, R.J.; Schoenung, S.M.; Hassenzahl, W.V.; Rogers, J.D.; Purcell, J.R.

1986-01-01

127

40 CFR 174.25 - Plant-incorporated protectant from sexually compatible plant.  

Code of Federal Regulations, 2010 CFR

...exempt if all of the following conditions are met: (a) The genetic material that encodes the pesticidal substance or leads to...is sexually compatible with the recipient plant. (b) The genetic material has never been derived from a source that is not...

2010-07-01

128

Heat inactivation of leaf phosphoenolpyruvate carboxylase: Protection by aspartate and malate in C 4 plants  

Microsoft Academic Search

The activity of phosphoenolpyruvate (PEP) carboxylase EC 4.1.1.31 in leaf extracts of Eleusine indica L. Gaertn., a C4 plant, exhibited a temperature optimum of 3537 C with a complete loss of activity at 50 C. However, the enzyme was protected effectively from heat inactivation up to 55 C by L-aspartate. Activation energies (Ea) for the enzyme in the presence of

C. K. M. Rathnam

1978-01-01

129

Common vole (Microtus arvalis) ecology and management: implications for risk assessment of plant protection products.  

PubMed

Common voles (Microtus arvalis) are common small mammals in some European landscapes. They can be a major rodent pest in European agriculture and they are also a representative generic focal small herbivorous mammal species used in risk assessment for plant protection products. In this paper, common vole population dynamics, habitat and food preferences, pest potential and use of the common vole as a model small wild mammal species in the risk assessment process are reviewed. Common voles are a component of agroecosystems in many parts of Europe, inhabiting agricultural areas (secondary habitats) when the carrying capacity of primary grassland habitats is exceeded. Colonisation of secondary habitats occurs during multiannual outbreaks, when population sizes can exceed 1000 individuals ha(-1) . In such cases, in-crop common vole population control management has been practised to avoid significant crop damage. The species' status as a crop pest, high fecundity, resilience to disturbance and intermittent colonisation of crop habitats are important characteristics that should be reflected in risk assessment. Based on the information provided in the scientific literature, it seems justified to modify elements of the current risk assessment scheme for plant protection products, including the use of realistic food intake rates, reduced assessment factors or the use of alternativee focal rodent species in particular European regions. Some of these adjustments are already being applied in some EU member states. Therefore, it seems reasonable consistently to apply such pragmatic and realistic approaches in risk assessments for plant protection products across the EU. PMID:24293354

Jacob, Jens; Manson, Phil; Barfknecht, Ralf; Fredricks, Timothy

2014-06-01

130

Cladosporium fulvum Avr4 protects fungal cell walls against hydrolysis by plant chitinases accumulating during infection.  

PubMed

Resistance against the leaf mold fungus Cladosporium fulvum is mediated by the tomato Cf proteins which belong to the class of receptor-like proteins and indirectly recognize extracellular avirulence proteins (Avrs) of the fungus. Apart from triggering disease resistance, Avrs are believed to play a role in pathogenicity or virulence of C. fulvum. Here, we report on the avirulence protein Avr4, which is a chitin-binding lectin containing an invertebrate chitin-binding domain (CBM14). This domain is found in many eukaryotes, but has not yet been described in fungal or plant genomes. We found that interaction of Avr4 with chitin is specific, because it does not interact with other cell wall polysaccharides. Avr4 binds to chitin oligomers with a minimal length of three N-acetyl glucosamine residues. In vitro, Avr4 protects chitin against hydrolysis by plant chitinases. Avr4 also binds to chitin in cell walls of the fungi Trichoderma viride and Fusarium solani f. sp. phaseoli and protects these fungi against normally deleterious concentrations of plant chitinases. In situ fluorescence studies showed that Avr4 also binds to cell walls of C. fulvum during infection of tomato, where it most likely protects the fungus against tomato chitinases, suggesting that Avr4 is a counter-defensive virulence factor. PMID:17153926

van den Burg, Harrold A; Harrison, Stuart J; Joosten, Matthieu H A J; Vervoort, Jacques; de Wit, Pierre J G M

2006-12-01

131

Survey of protected vascular plants on the Oak Ridge Reservation, Oak Ridge, Tennessee  

SciTech Connect

Vascular plant surveys were initiated during fiscal year 1992 by the environmentally sensitive areas program to determine the baseline condition of threatened and endangered (T&E) vascular plant species on the Oak Ridge Reservation (ORR). T&E species receive protection under federal and state regulations. In addition, the National Environmental Policy Act (NEPA) requires that federally-funded projects avoid or mitigate impacts to listed species. T&E plant species found on or near the U.S. Department of Energy`s (DOE) Oak Ridge Reservation (ORR) are identified. Twenty-eight species identified on the ORR are listed by the Tennessee Department of Environment and Conservation as either endangered, threatened, or of special concern. Four of these have been under review by the U.S. Fish and Wildlife Service for possible listing (listed in the formerly-used C2 candidate category). Additional species listed by the state occur near and may be present on the ORR. A range of habitats support the rare taxa on the ORR: river bluffs, sinkholes, calcareous barrens, wetlands, utility corridors, and forests. The list of T&E plant species and their locations on the ORR should be considered provisional because the entire ORR has not been surveyed, and state and federal status of all species continues to be updated. The purpose of this document is to present information on the listed T&E plant species currently known to occur on the ORR as well as listed species potentially occurring on the ORR based on geographic range and habitat availability. For the purpose of this report, {open_quotes}T&E species{close_quotes} include all federal- and state-listed species, including candidates for listing, and species of special concern. Consideration of T&E plant habitats is an important component of resource management and land-use planning; protection of rare species in their natural habitat is the best method of ensuring their long-term survival.

Awl, D.J.; Pounds, L.R.; Rosensteel, B.A.; King, A.L.; Hamlett, P.A.

1996-06-01

132

Heat inactivation of leaf phosphoenolpyruvate carboxylase: Protection by aspartate and malate in C4 plants.  

PubMed

The activity of phosphoenolpyruvate (PEP) carboxylase EC 4.1.1.31 in leaf extracts of Eleusine indica L. Gaertn., a C4 plant, exhibited a temperature optimum of 35-37 C with a complete loss of activity at 50 C. However, the enzyme was protected effectively from heat inactivation up to 55 C by L-aspartate. Activation energies (Ea) for the enzyme in the presence of aspartate were 2.5 times lower than that of the control enzyme. Arrhenius plots of PEP carboxylase activity (aspartate) showed a break in the slope around 17-20 C with a 3-fold increase in the Ea below the break. The discontinuity in the slopes was abolished by treating the enzyme extracts with Triton X-100, suggesting that PEP carboxylase in C4 plants is associated with lipid and may be a membrane bound enzyme. Depending upon the species, the major C4 acid formed during photosynthesis (malate or aspartate) was found to be more protective than the minor C4 acid against the heat inactivation of their PEP carboxylase. Oxaloacetate, the reaction product, was less effective compared to malate or aspartate. Several allosteric inhibitors of PEP carboxylase were found to be moderately to highly effective in protecting the C4 enzyme while its activators showed no significant effect. PEP carboxylase from C3 species was not protected from thermal inactivation by the C4 acids. The physiological significance of these results is discussed in relation to the high temperature tolerance of C4 plants. PMID:24414875

Rathnam, C K

1978-01-01

133

Protective efficacy of a single immunization with capripoxvirus-vectored recombinant peste des petits ruminants vaccines in presence of pre-existing immunity.  

PubMed

Sheeppox, goatpox and peste des petits ruminants (PPR) are highly contagious ruminant diseases widely distributed in Africa, the Middle East and Asia. Capripoxvirus (CPV)-vectored recombinant PPR vaccines (rCPV-PPR vaccines), which have been developed and shown to protect against both Capripox (CP) and PPR, would be critical tools in the control of these important diseases. In most parts of the world, these disease distributions overlap each other leaving concerns about the potential impact that pre-existing immunity against either disease may have on the protective efficacy of these bivalent rCPV-PPR vaccines. Currently, this question has not been indisputably addressed. Therefore, we undertook this study, under experimental conditions designed for the context of mass vaccination campaigns of small ruminants, using the two CPV recombinants (Kenya sheep-1 (KS-1) strain-based constructs) developed previously in our laboratory. Pre-existing immunity was first induced by immunization either with an attenuated CPV vaccine strain (KS-1) or the attenuated PPRV vaccine strain (Nigeria 75/1) and animals were thereafter inoculated once subcutaneously with a mixture of CPV recombinants expressing either the hemagglutinin (H) or the fusion (F) protein gene of PPRV (10(3) TCID50/animal of each). Finally, these animals were challenged with a virulent CPV strain followed by a virulent PPRV strain 3 weeks later. Our study demonstrated full protection against CP for vaccinated animals with prior exposure to PPRV and a partial protection against PPR for vaccinated animals with prior exposure to CPV. The latter animals exhibited a mild clinical form of PPR and did not show any post-challenge anamnestic neutralizing antibody response against PPRV. The implications of these results are discussed herein and suggestions made for future research regarding the development of CPV-vectored vaccines. PMID:24837763

Caufour, Philippe; Rufael, Tesfaye; Lamien, Charles Euloge; Lancelot, Renaud; Kidane, Menbere; Awel, Dino; Sertse, Tefera; Kwiatek, Olivier; Libeau, Genevive; Sahle, Mesfin; Diallo, Adama; Albina, Emmanuel

2014-06-24

134

SYMPOSIUM ON THE DEVELOPMENT OF STRATEGIC PROGRAMS FOR MONITORING ECOLOGICAL IMPACT FROM PLANT-INCORPORATED PROTECTANTS (PIPS)  

EPA Science Inventory

BACKGROUND/PURPOSE Historically, monitoring programs in association with field releases of crops with plant incorporated protectants (PIPs) have been, explicitly or implicitly, called for as a part of risk assessment/management schemes or regulatory agenda. However...

135

78 FR 16705 - Llano Seco Riparian Sanctuary Unit Restoration and Pumping Plant/Fish Screen Facility Protection...  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2013-N039...Sanctuary Unit Restoration and Pumping Plant/ Fish Screen Facility Protection Project, CA...and Environmental Impact Report AGENCY: Fish and Wildlife Service, Interior....

2013-03-18

136

78 FR 76317 - Llano Seco Riparian Sanctuary Unit Restoration and Pumping Plant/Fish Screen Facility Protection...  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2013-N271...Sanctuary Unit Restoration and Pumping Plant/ Fish Screen Facility Protection Project, CA; Record of Decision AGENCY: Fish and Wildlife Service, Interior....

2013-12-17

137

77 FR 26569 - Llano Seco Riparian Sanctuary Unit Restoration and Pumping Plant/Fish Screen Facility Protection...  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2012-N023...Sanctuary Unit Restoration and Pumping Plant/ Fish Screen Facility Protection Project, CA...and Environmental Impact Report AGENCY: Fish and Wildlife Service, Interior....

2012-05-04

138

76 FR 20368 - Llano Seco Riparian Sanctuary Unit Restoration and Pumping Plant/Fish Screen Facility Protection...  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF THE INTERIOR Fish and Wildlife Service [FWS-R8-R-2011-N042...Sanctuary Unit Restoration and Pumping Plant/ Fish Screen Facility Protection Project, California...Environmental Impact Statement AGENCY: Fish and Wildlife Service, Interior....

2011-04-12

139

The role of selenium in protecting plants against prairie dog herbivory: implications for the evolution of selenium hyperaccumulation  

Microsoft Academic Search

Some plants can hyperaccumulate the element selenium (Se) up to 10,000mg Se kg?1 dry weight. Hyperaccumulation has been hypothesized to defend against herbivory. In laboratory studies high Se levels protect\\u000a plants from invertebrate herbivores and pathogens. However, field studies and mammalian herbivore studies that link Se accumulation\\u000a to herbivory protection are lacking. In this study a combination of field surveys

Colin F. Quinn; John L. Freeman; Miriam L. Galeas; Erin M. Klamper; Elizabeth A. H. Pilon-Smits

2008-01-01

140

A new class of plant lipid is essential for protection against phosphorus depletion  

PubMed Central

Phosphorus supply is a major factor responsible for reduced crop yields. As a result, plants utilize various adaptive mechanisms against phosphorus depletion, including lipid remodelling. Here we report the involvement of a novel plant lipid, glucuronosyldiacylglycerol, against phosphorus depletion. Lipidomic analysis of Arabidopsis plants cultured in phosphorus-depleted conditions revealed inducible accumulation of glucuronosyldiacylglycerol. Investigation using a series of sulfolipid sulfoquinovosyldiacylglycerol synthesis-deficient mutants of Arabidopsis determined that the biosynthesis of glucuronosyldiacylglycerol shares the pathway of sulfoquinovosyldiacylglycerol synthesis in chloroplasts. Under phosphorus-depleted conditions, the Arabidopsis sqd2 mutant, which does not accumulate either sulfoquinovosyldiacylglycerol or glucuronosyldiacylglycerol, was the most severely damaged of three sulfoquinovosyldiacylglycerol-deficient mutants. As glucuronosyldiacylglycerol is still present in the other two mutants, this result indicates that glucuronosyldiacylglycerol has a role in the protection of plants against phosphorus limitation stress. Glucuronosyldiacylglycerol was also found in rice, and its concentration increased significantly following phosphorus limitation, suggesting a shared physiological significance of this novel lipid against phosphorus depletion in plants. PMID:23443538

Okazaki, Yozo; Otsuki, Hitomi; Narisawa, Tomoko; Kobayashi, Makoto; Sawai, Satoru; Kamide, Yukiko; Kusano, Miyako; Aoki, Toshio; Hirai, Masami Yokota; Saito, Kazuki

2013-01-01

141

ICPP Fluorinel Dissolution Process (FDP) Plant Protection System (PPS) baseline criteria evaluation  

SciTech Connect

This report documents a baseline criteria evaluation of the FAST Plant Protection System (PPS) at the Idaho Chemical Processing Plant (ICPP). Westinghouse Idaho Nuclear Company (WINCO), Computer Process Application (CPA) personnel originally prepared this report as requested by the FAST Fluorinel Dissolution Process (FDP) Operational Readiness Review (ORR) committee. It was required by the ORR committee for the 1992 restart of FDP operations. However on April 29, 1992, the Department of Energy (DOE) directed WINCO to discontinue reprocessing of spent nuclear fuel at the ICPP. This eliminated the mission of the FDP. The report includes an evaluation of the PPS against criteria requested by the ORR committee and against criteria contained in the WINCO PPS Requirements Manual. This second criteria evaluation is summarized in Appendix A.

Allen, G.W.; Clayton, R.J.; Fielding, K.D.; Mozes, M.L.

1993-06-01

142

A companion protease inhibitor for the protection of cytosol-targeted recombinant proteins in plants.  

PubMed

We reported earlier the potential of tomato cathepsin D inhibitor (SlCDI) as an in-built stabilizing agent for the protection of recombinant proteins in transgenic plant leaf crude extracts (Plant Biotechnol J.4, 359-368). Here we document the potential of SlCDI for the in situ protection of proteins in potato leaves. Total protein assays with control and SlCDI-expressing potato lines indicated a positive impact of slcdi transgene expression on leaf protein content, with a mean relative increase of 35%-40% depending on the light regime. Out of approximately 700 proteins detected on 2-D gels, only 20 exhibited a significantly altered level on a protein-specific basis, whereas most proteins were up-regulated on a leaf fresh weight basis, albeit at variable rates. Quantitative reverse trancriptase-PCR assays for rubisco activase showed similar transcript levels in leaves of test and control lines despite protein levels increased by two- to threefold in SlCDI-expressing lines. These observations, along with the unrelated biological functions assigned to MS-identified proteins up-regulated in leaves and protease assays showing slightly increased proteasome activity in protein extracts of SlCDI-expressing lines, suggest a general, proteasome-independent protein stabilizing effect of SlCDI in planta. Transient expression assays with human alpha(1)-antichymotrypsin also showed a stabilizing effect for SlCDI on heterologous proteins, leading to net levels of the human protein increased by approximately 2.5-fold in SlCDI-expressing plants. These data illustrate, overall, the potential of SlCDI as an in vivo protein-stabilizing agent in transgenic plant systems, useful to improve protein levels and recombinant protein accumulation. PMID:20051033

Goulet, Charles; Benchabane, Meriem; Anguenot, Raphal; Brunelle, France; Khalf, Moustafa; Michaud, Dominique

2010-02-01

143

Prospects for using proteinase inhibitors to protect transgenic plants against attack by herbivorous insects.  

PubMed

Proteinase inhibitors which act on the digestive enzymes of insect herbivores are a basic mechanism of plant defence. Attempts to exploit this defence mechanism in plant genetic engineering have used over-expression of both endogenous and exogenous inhibitors. While significant protection against insect pests has been routinely achieved, the engineered plants do not show levels of resistance considered commercially viable. As a result of selective pressures, insect herbivores have developed multiple mechanisms of adaptation to overcome the defensive effects of plant proteinase inhibitors. Common polyphagous crop pests are well adapted to deal with a range of different inhibitors, which have only limited effects on fitness as a result. A range of strategies have been attempted to improve effectiveness of proteinase inhibitors as antimetabolites towards insects, including selection for inhibitory activity against insect digestive enzymes, mutagenesis for novel inhibitory activity, and engineering inhibitors with multiple functions. However, proteinase inhibitor genes have only been used in transgenic crops in combination with other insecticidal genes. In Chinese genetically engineered cotton varieties which express Bt toxins as an insecticidal protein against lepidopteran larvae, the CpTI (cowpea trypsin inhibitor) gene has been employed as a second transgene to improve protection. This gene combination represents the only commercial deployment of a proteinase inhibitor transgene to date, with Bt/CpTI cotton grown on over 0.5 million hectares in 2005. Future prospects for using proteinase inhibitor genes to enhance insect resistance in transgenic crops will require reassessment of their mechanisms of action, particularly in affecting processes other than digestion, as exemplified by effects on sap-feeding hemipteran pests. PMID:21418023

Gatehouse, John A

2011-08-01

144

Analyse des relations entre plasticit architecturale des buissons et prolifration de leurs populations.  

E-print Network

??L'tude qualitative et quantitative du mode de dveloppement des plantes envahissantes est actuellement considre comme une tape clef dans la comprhension des phnomnes d'invasion. L'objectif (more)

Charles-Dominique, Tristan

2011-01-01

145

Analyse des relations entre plasticit architecturale des buissons et prolifration de leurs populations.  

E-print Network

??Ltude qualitative et quantitative du mode de dveloppement des plantes envahissantes est actuellement considre comme une tape clef dans la comprhension des phnomnes dinvasion. Lobjectif (more)

Charles-Dominique, Tristan

2011-01-01

146

Probabilistic Safety Assessment of External Flooding Protection for Nuclear Power Plants in Germany  

NASA Astrophysics Data System (ADS)

Methods to systematically analyse existing nuclear power plants (NPP) regarding the adequacy of their existing protection equipment against external hazards, e.g. flooding, can be of deterministic as well as probabilistic nature. In the past the adequacy of the protection measures has been assessed only on a deterministic basis. The German regulatory body has issued probabilistic safety assessment (PSA) guidelines, which had been elaborated for a comprehensive integrated safety review of all NPP in operation. Amongst others the guidelines imply, that probabilistic considerations regarding external flooding are required. This paper presents a newly developed graded approach for the probabilistic assessment of external flooding. Main aspects are explained such as the underlying probabilistic considerations and the mathematical procedures for the calculation of exceedance frequencies, which have recently been developed and issued as part of the German Nuclear Safety Standard. Exemplarily it has been investigated if extreme events such as tsunami waves could be a hazard for NPP at coastal sites in Germany. Here it could be shown that due to limited source mechanisms and the specific morphological conditions in the North Sea no dedicated measures for protection against tsunamis in the German Bight are necessary.

Berg, Heinz Peter; Goertz, Rudolf; Froehmel, Thomas; Winter, Christian

147

Phenol-Oxidizing Peroxidases Contribute to the Protection of Plants from Ultraviolet Radiation Stress1  

PubMed Central

We have studied the mechanism of UV protection in two duckweed species (Lemnaceae) by exploiting the UV sensitivity of photosystem II as an in situ sensor for radiation stress. A UV-tolerant Spirodela punctata G.F.W. Meyer ecotype had significantly higher indole-3-acetic acid (IAA) levels than a UV-sensitive ecotype. Parallel work on Lemna gibba mutants suggested that UV tolerance is linked to IAA degradation rather than to levels of free or conjugated IAA. This linkage is consistent with a role for class III phenolic peroxidases, which have been implicated both in the degradation of IAA and the cross-linking of various UV-absorbing phenolics. Biochemical analysis revealed increased activity of a specific peroxidase isozyme in both UV-tolerant duckweed lines. The hypothesis that peroxidases play a role in UV protection was tested in a direct manner using genetically modified tobacco (Nicotiana sylvestris). It was found that increased activity of the anionic peroxidase correlated with increased tolerance to UV radiation as well as decreased levels of free auxin. We conclude that phenol-oxidizing peroxidases concurrently contribute to UV protection as well as the control of leaf and plant architecture. PMID:11457952

Jansen, Marcel A.K.; van den Noort, Ria E.; Tan, M.Y. Adillah; Prinsen, Els; Lagrimini, L. Mark; Thorneley, Roger N.F.

2001-01-01

148

Correlation between Sun Protection Factor and Antioxidant Activity, Phenol and Flavonoid Contents of some Medicinal Plants  

PubMed Central

Long exposure of UV radiation increases risk of skin diseases such as cancer and photoallergic reactions. UV-B (280-320 nm) radiation is mainly responsible for inducing the skin problems. Skin protection is a suitable method against ultraviolet radiation-induced damage. Various synthetic agents have been used as photo protective but because of their potential toxicity in humans, they have limited usage. Natural substances have been recently considered as potential sunscreen resources due to their absorption in the UV region and their antioxidant activity. In the present study, the UV protective effects of 20 extracts from four common medicinal plants were evaluated. Their phenol and flavonoid contents and antioxidant activities were determined and correlation between SPF and these contents were evaluated. SPFs were between 0.102 and 24.470. The highest value was reached with ultrasonic extract of Crataegus pentagyna (SPF = 24.47) followed by methanolic extract of Feijoa sellowiana (SPF = 1.30). Good correlation was found between SPF and phenolic contents (Correlation Coefficient = 0.55 and p = 0.01) but no correlations were found between SPF and flavonoid contents or antioxidant activity. These extracts can be used alone or as additives in other sun screen formulations to enhance their SPF. PMID:25276206

Ebrahimzadeh, Mohammad Ali; Enayatifard, Reza; Khalili, Masoumeh; Ghaffarloo, Mahdieh; Saeedi, Majid; Yazdani Charati, Jamshid

2014-01-01

149

Correlation between Sun Protection Factor and Antioxidant Activity, Phenol and Flavonoid Contents of some Medicinal Plants.  

PubMed

Long exposure of UV radiation increases risk of skin diseases such as cancer and photoallergic reactions. UV-B (280-320 nm) radiation is mainly responsible for inducing the skin problems. Skin protection is a suitable method against ultraviolet radiation-induced damage. Various synthetic agents have been used as photo protective but because of their potential toxicity in humans, they have limited usage. Natural substances have been recently considered as potential sunscreen resources due to their absorption in the UV region and their antioxidant activity. In the present study, the UV protective effects of 20 extracts from four common medicinal plants were evaluated. Their phenol and flavonoid contents and antioxidant activities were determined and correlation between SPF and these contents were evaluated. SPFs were between 0.102 and 24.470. The highest value was reached with ultrasonic extract of Crataegus pentagyna (SPF = 24.47) followed by methanolic extract of Feijoa sellowiana (SPF = 1.30). Good correlation was found between SPF and phenolic contents (Correlation Coefficient = 0.55 and p = 0.01) but no correlations were found between SPF and flavonoid contents or antioxidant activity. These extracts can be used alone or as additives in other sun screen formulations to enhance their SPF. PMID:25276206

Ebrahimzadeh, Mohammad Ali; Enayatifard, Reza; Khalili, Masoumeh; Ghaffarloo, Mahdieh; Saeedi, Majid; Yazdani Charati, Jamshid

2014-01-01

150

The role of selenium in protecting plants against prairie dog herbivory: implications for the evolution of selenium hyperaccumulation.  

PubMed

Some plants can hyperaccumulate the element selenium (Se) up to 10,000 mg Se kg(-1) dry weight. Hyperaccumulation has been hypothesized to defend against herbivory. In laboratory studies high Se levels protect plants from invertebrate herbivores and pathogens. However, field studies and mammalian herbivore studies that link Se accumulation to herbivory protection are lacking. In this study a combination of field surveys and manipulative field studies were carried out to determine whether plant Se accumulation in the field deters herbivory by black-tailed prairie dogs (Cynomys ludovicianus). The Se hyperaccumulator Astragalus bisulcatus (two-grooved milkvetch) occurs naturally on seleniferous soils in the Western USA, often on prairie dog colonies. Field surveys have shown that this Se hyperaccumulator is relatively abundant on some prairie dog colonies and suffers less herbivory than other forb species. This protection was likely owing to Se accumulation, as judged from subsequent manipulative field experiments. When given a choice between pairs of plants of the Se hyperaccumulator Stanleya pinnata (prince's plume) that were pretreated with or without Se, prairie dogs preferred to feed on the plants with low Se; the same results were obtained for the non-hyperaccumulator Brassica juncea (Indian mustard). Plants containing as little as 38 mg Se kg(-1) DW were protected from herbivory. Taken together these results shed light on the functional significance of Se hyperaccumulation and the possible selection pressures driving its evolution. They also have implications for the use of plants in Se phytoremediation, or as Se-fortified crops. PMID:18278517

Quinn, Colin F; Freeman, John L; Galeas, Miriam L; Klamper, Erin M; Pilon-Smits, Elizabeth A H

2008-03-01

151

Predation and aggressiveness in host plant protection: a generalization using ants from the genus Azteca  

NASA Astrophysics Data System (ADS)

In studying the ant genus Azteca, a Neotropical group of arboreal species, we aimed to determine the extent to which the ants use predation and/or aggressiveness to protect their host plants from defoliating insects. We compared a territorially dominant, carton-nester, Azteca chartifex, and three plant-ant species. Azteca alfari and Azteca ovaticeps are associated with the myrmecophyte Cecropia (Cecropiaceae) and their colonies shelter in its hollow branches; whereas Azteca bequaerti is associated with Tococa guianensis (Melastomataceae) and its colonies shelter in leaf pouches situated at the base of the laminas. Whereas A. bequaerti workers react to the vibrations transmitted by the lamina when an alien insect lands on a leaf making it unnecessary for them to patrol their plant, the workers of the three other species rather discover prey by contact. The workers of all four species use a predatory behaviour involving spread-eagling alien insects after recruiting nestmates at short range, and, in some cases, at long range. Because A. alfari and A. ovaticeps discard part of the insects they kill, we deduced that the workers predatory behaviour and territorial aggressiveness combine in the biotic defence of their host tree.

Dejean, Alain; Grangier, Julien; Leroy, Cline; Orivel, Jerme

2009-01-01

152

A functional cutin matrix is required for plant protection against water loss  

PubMed Central

The plant cuticle, a cutin matrix embedded with and covered by wax, seals the aerial organ's surface to protect the plant against uncontrolled water loss. The cutin matrix is essential for the cuticle to function as a barrier to water loss. Recently, we identified from wild barley a drought supersensitive mutant, eibi1, which is caused by a defective cutin matrix as the result of the loss of function of HvABCG31, an ABCG full transporter. Here, we report that eibi1 epidermal cells contain lipid-like droplets, which are supposed to consist of cutin monomers that have not been transported out of the cells. The eibi1 cuticle is fragile due to a defective cutin matrix. The rice ortholog of the EIBI1 gene has a similar pattern of expression, young shoot but not flag leaf blade, as the barley gene. The model of the function of Eibi1 is discussed. The HvABCG31 full transporter functions in the export of cutin components and contributed to land plant colonization, hence also to terrestrial life evolution. PMID:22019635

Ma, Jian Feng; Li, Chao; Yamaji, Naoki; Nevo, Eviatar

2011-01-01

153

Priming by rhizobacterium protects tomato plants from biotrophic and necrotrophic pathogen infections through multiple defense mechanisms.  

PubMed

A selected strain of rhizobacterium, Pseudomonas putida strain LSW17S (LSW17S), protects tomato plants (Lycopersicon esculentum L. cv. Seokwang) from bacterial speck by biotrophic Pseudomonas syringae pv. tomato strain DC3000 (DC3000) and bacterial wilt by necrotrophic Ralstonia solanacearum KACC 10703 (Rs10703). To investigate defense mechanisms induced by LSW17S in tomato plants, transcription patterns of pathogenesis-related (PR) genes and H(2)O(2) production were analyzed in plants treated with LSW17S and subsequent pathogen inoculation. LSW17S alone did not induce transcriptions of employed PR genes in leaves and roots. DC3000 challenge following LSW17S triggered rapid transcriptions of PR genes and H(2)O(2) production in leaves and roots. Catalase infiltration with DC3000 attenuated defense-related responses and resistance against DC3000 infection. Despite depriving H(2)O(2) production and PR1b transcription by the same treatment, resistance against Rs10703 infection was not deterred significantly. H(2)O(2) is indispensable for defense signaling and/or mechanisms primed by LSW17S and inhibition of bacterial speck, however, it is not involved in resistance against bacterial wilt. PMID:21710203

Ahn, Il-Pyung; Lee, Sang-Woo; Kim, Min Gab; Park, Sang-Ryeol; Hwang, Duk-Ju; Bae, Shin-Chul

2011-07-01

154

Plant responses to abiotic stresses: heavy metal-induced oxidative stress and protection by mycorrhization.  

PubMed

The aim of this review is to assess the mode of action and role of antioxidants as protection from heavy metal stress in roots, mycorrhizal fungi and mycorrhizae. Based on their chemical and physical properties three different molecular mechanisms of heavy metal toxicity can be distinguished: (a) production of reactive oxygen species by autoxidation and Fenton reaction; this reaction is typical for transition metals such as iron or copper, (b) blocking of essential functional groups in biomolecules, this reaction has mainly been reported for non-redox-reactive heavy metals such as cadmium and mercury, (c) displacement of essential metal ions from biomolecules; the latter reaction occurs with different kinds of heavy metals. Transition metals cause oxidative injury in plant tissue, but a literature survey did not provide evidence that this stress could be alleviated by increased levels of antioxidative systems. The reason may be that transition metals initiate hydroxyl radical production, which can not be controlled by antioxidants. Exposure of plants to non-redox reactive metals also resulted in oxidative stress as indicated by lipid peroxidation, H(2)O(2) accumulation, and an oxidative burst. Cadmium and some other metals caused a transient depletion of GSH and an inhibition of antioxidative enzymes, especially of glutathione reductase. Assessment of antioxidative capacities by metabolic modelling suggested that the reported diminution of antioxidants was sufficient to cause H(2)O(2) accumulation. The depletion of GSH is apparently a critical step in cadmium sensitivity since plants with improved capacities for GSH synthesis displayed higher Cd tolerance. Available data suggest that cadmium, when not detoxified rapidly enough, may trigger, via the disturbance of the redox control of the cell, a sequence of reactions leading to growth inhibition, stimulation of secondary metabolism, lignification, and finally cell death. This view is in contrast to the idea that cadmium results in unspecific necrosis. Plants in certain mycorrhizal associations are less sensitive to cadmium stress than non-mycorrhizal plants. Data about antioxidative systems in mycorrhizal fungi in pure culture and in symbiosis are scarce. The present results indicate that mycorrhization stimulated the phenolic defence system in the Paxillus-Pinus mycorrhizal symbiosis. Cadmium-induced changes in mycorrhizal roots were absent or smaller than those in non-mycorrhizal roots. These observations suggest that although changes in rhizospheric conditions were perceived by the root part of the symbiosis, the typical Cd-induced stress responses of phenolics were buffered. It is not known whether mycorrhization protected roots from Cd-induced injury by preventing access of cadmium to sensitive extra- or intracellular sites, or by excreted or intrinsic metal-chelators, or by other defence systems. It is possible that mycorrhizal fungi provide protection via GSH since higher concentrations of this thiol were found in pure cultures of the fungi than in bare roots. The development of stress-tolerant plant-mycorrhizal associations may be a promising new strategy for phytoremediation and soil amelioration measures. PMID:11997381

Schtzendbel, Andres; Polle, Andrea

2002-05-01

155

Recommended practice for fire protection for electric generating plants and high voltage direct current converter stations. 2005 ed.  

SciTech Connect

The standard outlines fire safety recommendations for gas, oil, coal, and alternative fuel electric generating plants including high voltage direct current converter stations and combustion turbine units greater than 7500 hp used for electric generation. Provisions apply to both new and existing plants. The document provides fire prevention and fire protection recommendations for the: safety of construction and operating personnel; physical integrity of plant components; and continuity of plant operations. The 2005 edition includes revisions and new art that clarify existing provisions. 5 annexes.

NONE

2005-07-01

156

Benefits of protective fencing to plant and rodent communities of the western Mojave Desert, California  

NASA Astrophysics Data System (ADS)

Human disturbance in the western Mojave Desert takes many forms. The most pervasive are livestock grazing and off-highway vehicle use. Over the past few decades several areas within this region have been fenced to preclude human disturbance. These areas provide opportunities to study the impact of human activities in a desert ecosystem. This paper documents the response of plant and small mammal populations to fencing constructed between 1978 and 1979 at the Desert Tortoise Research Natural Area, Kern County, California. Aboveground live annual plant biomass was generally greater inside than outside the fenced plots during April 1990, 1991, and 1992. The alien grass Schismus barbatus was a notable exception, producing more biomass in the unprotected area. Forb biomass was greater than that of alien annual grasses inside the fence during all three years of the study. Outside the fence, forb biomass was significantly higher than that of alien grasses only during spring 1992. Percent cover of perennial shrubs was higher inside the fence than outside, while no significant trend was detected in density. There was als more seed biomass inside the fence; this may have contributed to the greater diversity and density of Merriam's kangaroo rats ( Dipodomys merriami), long-tailed pocket mice ( Chaetodipus formosus), and southern grasshopper mice ( Onychomys torridus) in the protected area. These results show that protection from human disturbance has many benefits, including greater overall community biomass and diversity. The significance and generality of these results can be further tested by studying other exclosures of varying age and configurations in different desert regions of the southwestern United States.

Brooks, Matthew L.

1995-01-01

157

Protective effects of three extracts from Antarctic plants against ultraviolet radiation in several biological models.  

PubMed

The photoprotective effect of the methanolic extracts of three Antarctic plant species - Deschampsia antarctica Desv., Colobanthus quitensis (Kunth) Bartl., and Polytrichum juniperinum Hedw. against UV-induced DNA damage was investigated in hamster lung fibroblasts (V79 cells) and in a biomonitor organism Helix aspersas, using comet assay. The protective, mutagenic, and antimutagenic profiles of these extracts were also evaluated using haploid strains of the simple eukaryote Saccharomyces cerevisiae, and antioxidant activity were investigated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging assay, as well as the hypoxanthine/xanthine oxidase assay. At the concentration range employed, the extracts were not cytotoxic or mutagenic to S. cerevisiae. In addition, the treatment with these extracts enhanced survival, and decreased induced reverse, frameshift, and forward mutations in a dose-response manner in all UVC doses employed. The plants extracts did not generate DNA strand breaks in V79 cells, and the treatment significantly decreased DNA damage induced by UVC. Extracts significantly decreased UVC-induced lipid peroxidation in V79 cells, showing a clear antioxidant property. Moreover, results of comet assay in V79 cells, employing Fpg, Endo III, and Endo V enzymes, demonstrated significant reduction of UVC-induced DNA damage after pre-incubation with these extracts. The treatment with all tested extracts were much less efficient against UVC-induced cytotoxicity in the yeast strain defective in photolyase as compared to the wild type strain, suggesting that this DNA repair pathway is stimulated by substances present in the extracts. All extracts showed a significant inhibitory effect in the hypoxanthine/xanthine oxidase assay, and they had the ability to scavenge DPPH. In H. aspersas, the treatment was able to protect against UVC-induced damage. In conclusion, D. antarctica, C. quitensis, and P. juniperinum extracts present photoprotective properties, which can be attributed to molecules, such as flavonoids and carotenoids, which act as UV-absorbing molecules and as antioxidants, as well as stimulate DNA-repair processes. PMID:19464923

Pereira, Betina Kappel; Rosa, Renato Moreira; da Silva, Juliana; Guecheva, Temenouga Nikolova; Oliveira, Iuri Marques de; Ianistcki, Martus; Benvegn, Vincius Cosmos; Furtado, Gabriel Vasata; Ferraz, Alexandre; Richter, Marc Franois; Schroder, Ndia; Pereira, Antnio Batista; Henriques, Joo Antonio Pgas

2009-08-01

158

PVC flexible liners as corrosion protection for brine treatment tanks in chlor-alkali plants  

SciTech Connect

Three flexible PVC sheets were evaluated to determine their suitability as liners to protect existing steel tanks handling treated brine at 55 C in a membrane technology Chlor-Alkali plants. The evaluation included: characterization of liners and plasticizers (by Soxhlet technique, Infrared Spectroscopy (IRS), Secondary Ion Mass Spectroscopy (SIMS) and Gel Permeation Chromatography (GPC)); quantification of brine pollutants by Atomic Emission Spectroscopy (AES) and weight-loss/volume ratios; observation of the superficial damage produced by extended immersion in acid hot brine by Scanning Electron Microscopy (SEM); and the estimation of remaining properties in high temperature oxidative atmospheres (per ASTM D 3045). As a result of this evaluation, remaining property curves as a function of time and temperature are presented for high temperature atmospheric exposure. These curves are related to actual service and to changes in liner hardness. Economics of using flexible PVC liners are compared to flakeglass filled thermosetting coatings. The conclusions are that, even though flexible PVC linings are disposable, they protect steel against hot acid brine corrosion, and they are economically attractive compared to flakeglass filled coatings. In addition PVC linings may be more reliable because remaining PVC properties can be measured using nondestructive hardness measurements. PVC linings are not recommended above 65 C in corrosive service because life is notably reduced.

Perez-de-Obanos, M. [Petroquimica de Venezuela, S.A., Caracas (Venezuela); Marin, S. [Univ. Simon Bolivar, Caracas (Venezuela)

1999-11-01

159

Upgrade of Control and Protection System of the Ignalina Nuclear Power Plant Units 1 and 2  

SciTech Connect

The Ignalina nuclear power plant (NPP) Units 1 and 2 are Soviet-designed, RBMK (Reaktor Bolshoi Moschnosti Kipyashchiy), channelized, large power-type reactors. The original-design electrical capacity for each unit was 1500 MW. Unit 1 began operating in 1983, and Unit 2 was started up in 1987. In 1994, the government of Lithuania agreed to accept grant support for the Ignalina NPP Safety Improvement Program with funding supplied by the Nuclear Safety Account of the European Bank for Reconstruction and Development (EBRD). As conditions for receiving this funding, the Ignalina NPP agreed to prepare a comprehensive safety analysis report that would undergo independent peer review after it was issued. The EBRD Safety Panel oversaw preparation and review of the report. In 1996, the safety analysis report for Unit 1 was completed and delivered to the EBRD. Part of the analyses covered anticipated transients without scram (ATWS). The analysis showed that some ATWS scenarios could lead to unacceptable consequences in <1 min. The EBRD Safety Panel recommended to the government of Lithuania that the Ignalina NPP develop and implement a program of compensatory measures for the control and protection system before the unit would be allowed to return to operation following its 1998 maintenance outage. A compensatory control and protection system that would mitigate the unacceptable consequences was designed, procured, manufactured, tested, and installed. The project was funded by U.S. Department of Energy.

Wright, Ronald E. [Pacific Northwest National Laboratory (United States); Fletcher, Norman [U.S. Department of Energy (United States); Sidnev, Victor E. [Ignalina Nuclear Power Plant (Lithuania); Bickel, John H. [Scientech, Inc. (United States); Vianello, Aldo [Invensys0Foxboro (C42-2C) (United States); Pearsall, Raymond D

2003-08-15

160

Upgrade of Control and Protection System of the Ignalina Nuclear Power Plant Units 1 and 2  

SciTech Connect

The Ignalina Nuclear Power Plant (NPP) Units 1 and 2 are Soviet-designed, RBMK (Reaktor Bolshoi Moschnosti Kipyashchiy), channelized, large power-type reactors. The original-design electrical capacity for each unit was 1500 Megawatts. Unit 1 began operating in 1983, and Unit 2 was started up in 1987. In 1994, the government of Lithuania agreed to accept grant support for the Ignalina NPP Safety Improvement Program with funding supplied by the Nuclear Safety Account of the European Bank for Reconstruction and Development (EBRD). As conditions for receiving this funding, Ignalina NPP agreed to prepare a comprehensive Safety Analysis Report that would undergo independent peer review after it was issued. The EBRD Safety Panel oversaw preparation and review of the report. In 1996, the Safety Analysis Report for Unit 1 was completed and delivered to the EBRD. Part of the analyses covered anticipated transients without scram (ATWS). The analysis showed that some ATWS scenarios could lead to unacceptable consequences in less than a minute. The EBRD Safety Panel recommended to the Government of Lithuania that Ignalina NPP develop and implement a Program of Compensatory Measures for the Control and Protection System before the unit would be allowed to return to operation following its 1998 maintenance outage. A compensatory control and protection system that would mitigate the unacceptable consequences was designed, procured, manufactured, tested, and installed. The project was funded by U.S. Department of Energy.

Wright, Ronald E.; Fletcher, Norman; Pearsall, Raymond; Sidnev, Victor; Bickel, John; Vianello, Aldo

2003-08-01

161

Protection of oilseed rape (Brassica napus) toward fungal pathogens by strains of plant-associated Bacillus amyloliquefaciens.  

PubMed

In this report, four Bacillus strains were tested for effects on plant fitness and disease protection of oilseed rape (Brassica napus). The strains belonged to newly discovered plant-associated Bacillus amyloliquefaciens and a recently proposed species, Bacillus endophyticus. The fungal pathogens tested represented different infection strategies and included Alternaria brassicae, Botrytis cinerea, Leptosphaeria maculans, and Verticillium longisporum. The B. amyloliquefaciens strains showed no or a weak plant growth promoting activity, whereas the B. endophyticus strain had negative effects on the plant as revealed by phenological analysis. On the other hand, two of the B. amyloliquefaciens strains conferred protection of oilseed rape toward all pathogens tested. In vitro experiments studying the effects of Bacillus exudates on fungal growth showed clear growth inhibition in several but not all cases. The protective effects of Bacillus can therefore, at least in part, be explained by production of antibiotic substances, but other mechanisms must also be involved probably as a result of intricate plant-bacteria interaction. The protective effects observed for certain Bacillus strains make them highly interesting for further studies as biocontrol agents in Brassica cultivation. PMID:17186140

Danielsson, Jesper; Reva, Oleg; Meijer, Johan

2007-07-01

162

Antioxidative protection in the inducible CAM plant Sedum album L. following the imposition of severe water stress and recovery  

Microsoft Academic Search

The antioxidative protection during the C3-CAM shift induced by water stress was investigated in the temperate succulent Sedum album L. The C3-CAM shift was characterized in terms of CO2 exchange, titratable acidity and phosphoenolpyruvate carboxylase activity. Well-watered plants displayed C3-like patterns of gas exchange and exhibited a mild day-night acid fluctuation indicating that those plants were performing CAM-cycling metabolism. Imposed

F. J. Castillo

1996-01-01

163

Occupational dose reduction at nuclear power plants: Annotated bibliography of selected readings in radiation protection and ALARA  

Microsoft Academic Search

In the continuing effort to collect and disseminate information on radiation dose reduction at nuclear power plants, the ALARA Center at Brookhaven National Laboratory publishes a series of bibliographies of selected readings in radiation protection and ALARA. This is the sixth report in that series. The abstracts in this bibliography were selected from proceedings of technical meetings and conferences, journals,

T. A. Khan; D. S. Vulin; J. W. Baum

1991-01-01

164

Hanford Waste Simulants Created to Support the Research and Development on the River Protection Project - Waste Treatment Plant  

SciTech Connect

The development of nonradioactive waste simulants to support the River Protection Project - Waste Treatment Plant bench and pilot-scale testing is crucial to the design of the facility. The report documents the simulants development to support the SRTC programs and the strategies used to produce the simulants.

Eibling, R.E.

2001-07-26

165

Fall Protection for Roof Workers Before working on roofs above 7 feet,1 Physical Plant staff should implement an  

E-print Network

Fall Protection for Roof Workers Before working on roofs above 7 ½ feet,1 Physical Plant staff 5 feet from edge2 and flag them visibly every 6 feet. Also, support them to prevent displacement and ensure that they can withstand a vertical or horizontal force of 13 pounds per linear feet. Guard rails

de Lijser, Peter

166

Grana stacking and protection of Photosystem II in thylakoid membranes of higher plant leaves under sustained high irradiance: An hypothesis  

Microsoft Academic Search

We propose yet another function for the unique appressed thylakoids of grana stacks of higher plants, namely that during prolonged high light, the non-functional, photoinhibited PS II centres accumulate as D1 protein degradation is prevented and may act as dissipative conduits to protect other functional PS II centres. The need for this photoprotective mechanism to prevent high D1 protein turnover

Jan M. Anderson; Eva-Mari Aro

1994-01-01

167

Characteristics of organization execution of groundwater protection for elimination of failure consequences at the Chernobyl Nuclear Power Plant  

SciTech Connect

The writers describe the organization, methods, and work execution for construction of an antifiltration diaphragm wall intended to protect groundwater and subsurface flow of the Pripyat` River against radioactive contamination during elimination of the consequences of the failure of the Chernobyl Nuclear Power Plant.

Dmitriev, N.V., Zhivoderov, V.N.

1994-07-01

168

Zeaxanthin Protects Plant Photosynthesis by Modulating Chlorophyll Triplet Yield in Specific Light-harvesting Antenna Subunits*  

PubMed Central

Plants are particularly prone to photo-oxidative damage caused by excess light. Photoprotection is essential for photosynthesis to proceed in oxygenic environments either by scavenging harmful reactive intermediates or preventing their accumulation to avoid photoinhibition. Carotenoids play a key role in protecting photosynthesis from the toxic effect of over-excitation; under excess light conditions, plants accumulate a specific carotenoid, zeaxanthin, that was shown to increase photoprotection. In this work we genetically dissected different components of zeaxanthin-dependent photoprotection. By using time-resolved differential spectroscopy in vivo, we identified a zeaxanthin-dependent optical signal characterized by a red shift in the carotenoid peak of the triplet-minus-singlet spectrum of leaves and pigment-binding proteins. By fractionating thylakoids into their component pigment binding complexes, the signal was found to originate from the monomeric Lhcb46 antenna components of Photosystem II and the Lhca14 subunits of Photosystem I. By analyzing mutants based on their sensitivity to excess light, the red-shifted triplet-minus-singlet signal was tightly correlated with photoprotection in the chloroplasts, suggesting the signal implies an increased efficiency of zeaxanthin in controlling chlorophyll triplet formation. Fluorescence-detected magnetic resonance analysis showed a decrease in the amplitude of signals assigned to chlorophyll triplets belonging to the monomeric antenna complexes of Photosystem II upon zeaxanthin binding; however, the amplitude of carotenoid triplet signal does not increase correspondingly. Results show that the high light-induced binding of zeaxanthin to specific proteins plays a major role in enhancing photoprotection by modulating the yield of potentially dangerous chlorophyll-excited states in vivo and preventing the production of singlet oxygen. PMID:23066020

Dall'Osto, Luca; Holt, Nancy E.; Kaligotla, Shanti; Fuciman, Marcel; Cazzaniga, Stefano; Carbonera, Donatella; Frank, Harry A.; Alric, Jean; Bassi, Roberto

2012-01-01

169

40 CFR 174.525 - E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant inert ingredient; exemption...  

Code of Federal Regulations, 2012 CFR

...false E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...525 E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...Residues of E. coli B-D-glucuronidase enzyme are exempt from the requirement of...

2012-07-01

170

40 CFR 174.525 - E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant inert ingredient; exemption...  

Code of Federal Regulations, 2010 CFR

...false E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...525 E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...Residues of E. coli B-D-glucuronidase enzyme are exempt from the requirement of...

2010-07-01

171

40 CFR 174.525 - E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant inert ingredient; exemption...  

Code of Federal Regulations, 2013 CFR

...false E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...525 E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...Residues of E. coli B-D-glucuronidase enzyme are exempt from the requirement of...

2013-07-01

172

40 CFR 174.525 - E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant inert ingredient; exemption...  

Code of Federal Regulations, 2011 CFR

...false E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...525 E. coli B-D-glucuronidase enzyme as a plant-incorporated protectant...Residues of E. coli B-D-glucuronidase enzyme are exempt from the requirement of...

2011-07-01

173

Leaf-cutting ant nests near roads increase fitness of exotic plant species in natural protected areas  

PubMed Central

Understanding the mechanisms that promote the invasion of natural protected areas by exotic plants is a central concern for ecology. We demonstrated that nests of the leaf-cutting ant, Acromyrmex lobicornis, near roadsides promote the abundance, growth and reproduction of two exotic plant species, Carduus nutans and Onopordum acanthium, in a national park in northern Patagonia, Argentina and determine the mechanisms that produce these effects. Refuse dumps (RDs) from ant nests have a higher nutrient content than nearby non-nest soils (NNSs); foliar nutrient content and their 15N isotopic signature strongly suggest that plants reach and use these nutrients. Both species of exotic plants in RDs were 50600% more abundant; seedlings had 1001000% more foliar area and root and leaf biomass; and adult plants produced 100300% more seeds than nearby NNS plants. Plants can thus gain access to and benefit from the nutrient content of ant RD, supporting the hypotheses that enhanced resource availability promotes exotic plant performance that could increase the likelihood of biological invasions. The two exotics produce an estimated of 8?385?000 more seeds?ha?1 in areas with ant nests compared with areas without; this exceptional increase in seed production represents a potential threat to nearby non-invaded communities. We propose several management strategies to mitigate this threat. Removal efforts of exotics should be focused on ant RDs, where plants are denser and represent a higher source of propagules. PMID:18364316

Farji-Brener, Alejandro G; Ghermandi, Luciana

2008-01-01

174

Decommissioning a phosphoric acid production plant: a radiological protection case study.  

PubMed

During a preliminary survey at the area of an abandoned fertilizer plant, increased levels of radioactivity were measured at places, buildings, constructions and materials. The extent of the contamination was determined and the affected areas were characterized as controlled areas. After the quantitative and qualitative determination of the contaminated materials, the decontamination was planned and performed step by step: the contaminated materials were categorized according to their physical characteristics (scrap metals, plastic pipes, scales and residues, building materials, etc) and according to their level of radioactivity. Depending on the material type, different decontamination and disposal options were proposed; the most appropriate technique was chosen taking into account apart from technical issues, the legal framework, radiation protection issues, the opinion of the local authorities involved as well as the owner's wish. After taking away the biggest amount of the contaminated materials, an iterative process consisting of surveys and decontamination actions was performed in order to remove the residual traces of contamination from the area. During the final survey, no residual surface contamination was detected; some sparsely distributed low level contaminated materials deeply immersed into the soil were found and removed. PMID:20813440

Stamatis, V; Seferlis, S; Kamenopoulou, V; Potiriadis, C; Koukouliou, V; Kehagia, K; Dagli, C; Georgiadis, S; Camarinopoulos, L

2010-12-01

175

Influence of scale deposition on cathodic-protection performance in desalination plant conditions.  

PubMed

This paper describes an investigation into the interrelationships between the performance of an impressed current cathodic protection (CP) system and the deposition of scale compounds in a seawater pipe system. Some experiments were conducted on a laboratory set-up but the emphasis was on tests on a 0.25 m diameter steel pipe fed by seawater flowing to a thermal desalination plant. The experimental approach involved monitoring the CP current as a function of time at various set potentials and correlating this data with evidence from visual inspection of the pipe-wall surfaces and small probe specimens. The influences of control potential and seawater flow rate at temperatures of 25-35 degrees C were studied. Selected scale samples were subjected to examination by scanning electron microscopy and X-ray diffraction. The overall findings are discussed in terms of fundamental scale/CP-operation interactions and aspects relevant to practical operation of CP systems on seawater pipe installations. PMID:14982184

Hodgkiess, T; Najm-Mohammed, N A

2004-01-01

176

Monitoring of systemic exposure to plant protection products and DNA damage in orchard workers.  

PubMed

The systemic exposure of plum tree growers and operators to plant protection products (PPPs) and effects on DNA were assessed. Specifically, a GC-MS/MS method was developed and validated for the analysis of serum samples for the presence of seven active substances of PPPs. The analytical results verified the presence of myclobutanil, propargite, cypermethrin and deltamethrin in 7 out of 19 serum samples. The incidence of DNA damage was monitored using the single cell electrophoresis assay (comet assay). A paired Student's t-test revealed a statistically significant increase of SSBs in the blood samples collected at the end of the cropping period as compared to the samples collected from the same subjects before the start of PPPs application period. Moreover, the group of seven subjects with detectable serum pesticides levels revealed statistically significant increase of SSBs as compared to the group of subjects with no detectable PPP levels. The results of the present study demonstrate that the agriculture workers may exhibit detectable level of systemic exposure to the applied PPPs which are correlated to increased DNA damage during the cultivation period. PMID:22115631

Kasiotis, Konstantinos M; Kyriakopoulou, Katerina; Emmanouil, Christina; Tsantila, Nektaria; Liesivuori, Jyrki; Souki, Helen; Manakis, Sotiris; Machera, Kyriaki

2012-04-25

177

Audit of construction of protective force training facilities at the Pantex Plant  

SciTech Connect

A goal of the Department of Energy project management system is to ensure that projects are necessary to fulfill mission needs and are cost effective. This requires that the Department justify each project and explore competitive alternatives. The objective of this audit was to assess the need to construct protective force training facilities at the Department`s Pantex Plant. Our audit disclosed that (1) construction of a physical training facility was not necessary to fulfill mission needs, and (2) the Department did not consider all viable alternatives to constructing a weapons tactics and training facility. These conditions occurred, in part, because a Justification for New Start was never prepared and approved for the Security Enhancements Major System Acquisition, which included these two projects. We recommended that the Manager, Albuquerque Operations Office, cancel construction of the physical training facility, make needed repairs and upgrades to the existing facilities, and reduce the cost of the Security Enhancements Major System Acquisition accordingly. Implementation of this recommendation will save about $1.7 million. We also recommended that the Manager direct Mason & Hanger to perform economic analyses of all viable alternatives to constructing a weapons tactics and training facility before proceeding with construction. Such analyses could lead to cancellation or rescoping of the proposed facility and result in savings to the Department. Albuquerque management did not agree to cancel construction of the physical training facility, but did agree to perform economic analyses of all viable alternatives to the proposed weapons tactics and training facility before proceeding with construction.

NONE

1995-05-05

178

Soil-plant-animal transfer models to improve soil protection guidelines: a case study from Portugal.  

PubMed

Food chain models are essential tools to assess risks of soil contamination in view of product quality including fodder crops and animal products. Here we link soil to plant transfer (SPT) models for potentially toxic elements (PTEs) including As, Ba, Cd, Co, Cu, Hg, Ni, Pb, Sb, U and Zn with models describing accumulation in animal organs. Current EU standards for food products and acceptable daily intake levels (ADI) for humans were used as critical limits. The combined model is used to assess the impact of soil contamination on animal health, product quality and human health using data from 100 arable fields. Results indicate that 42 existing arable fields near industrial and mining sites are unsuitable for animal grazing in view of food safety due to elevated intake of Cd, Cu, Hg and Pb by cows and sheep. At 10 sites daily intake levels of As by cows exceeded threshold concentrations regarding the quality of animal products. The food chain model also was used inversely to derive soil threshold concentrations in view of EU fodder standards. Calculated threshold levels in soil for As, Cd, Cu, Pb, Hg and Zn appear to be in line with those proposed or used in other EU countries. As such the approach applied here can form a conceptual basis for a more harmonized risk assessment strategy regarding the protection of animal and human health. PMID:22208740

Rodrigues, S M; Pereira, M E; Duarte, A C; Rmkens, P F A M

2012-02-01

179

Tobacco plants transformed with the potato virus Y N coat protein gene are protected against different PVY isolates and against aphid-mediated infection  

Microsoft Academic Search

Tobacco plant lines transformed with the coat protein (CP) gene of the tobacco veinal necrosis strain of potato virus Y (PVYN), and previously shown to be protected against mechanical inoculation with the virus, have now been tested for specificity and protection against virus infection mediated by viruliferous aphids. To determine the specificity of virus protection, two transgenic tobacco lines, A30

Ren A. A. van der Vlugt; Rob W. Goldbach

1993-01-01

180

Evaluation des consquences radiologiques et conomiques associes un accident de fusion  

Microsoft Academic Search

e retour d'exprience des dernires annes en matire d'laboration des normes de protection sanitaires dans de nombreux domaines montre une difficult crois- sante des pouvoirs publics et des autorits comptentes pour fixer des niveaux de rfrence ayant une porte gnrale et durable. La reconnaissance des incertitudes aux faibles ni- veaux d'exposition tend en effet faire jouer un rle croissant

Thierry SCHNEIDER; Samuel LEPICARD

181

ICRP Publication 114. Environmental protection: transfer parameters for reference animals and plants.  

PubMed

In Publication 103 (ICRP, 2007), the Commission included a section on the protection of the environment, and indicated that it would be further developing its approach to this difficult subject by way of a set of Reference Animals and Plants (RAPs) as the basis for relating exposure to dose, and dose to radiation effects, for different types of animals and plants. Subsequently, a set of 12 RAPs has been described in some detail (ICRP, 2008), particularly with regard to estimation of the doses received by them, at a whole-body level, in relation to internal and external radionuclide concentrations; and what is known about the effects of radiation on such types of animals and plants. A set of dose conversion factors for all of the RAPs has been derived, and the resultant dose rates can be compared with evaluations of the effects of dose rates using derived consideration reference levels (DCRLs). Each DCRL constitutes a band of dose rates for each RAP within which there is likely to be some chance of the occurrence of deleterious effects. Site-specific data on Representative Organisms (i.e. organisms of specific interest for an assessment) can then be compared with such values and used as a basis for decision making. It is intended that the Commission's approach to protection of the environment be applied to all exposure situations. In some situations, the relevant radionuclide concentrations can be measured directly, but this is not always possible or feasible. In such cases, modelling techniques are used to estimate the radionuclide concentrations. This report is an initial step in addressing the needs of such modelling techniques. After briefly reviewing the basic factors relating to the accumulation of radionuclides by different types of biota, in different habitats, and at different stages in the life cycle, this report focuses on the approaches used to model the transfer of radionuclides through the environment. It concludes that equilibrium concentration ratios (CRs) are most commonly used to model such transfers, and that they currently offer the most comprehensive data coverage. The report also reviews the methods used to derive CRs, and describes a means of summarising statistical information from empirical data sets. Emphasis has been placed on using data from field studies, although some data from laboratory experiments have been included for some RAPs. There are, inevitably, many data gaps for each RAP, and other data have been used to help fill these gaps. CRs specific to each RAP were extracted from a larger database, structured in terms of generic wildlife groups. In cases where data were lacking, values from taxonomically-related organisms were used to derive suitable surrogate values. The full set of rules which have been applied for filling gaps in RAP-specific CRs is described. Statistical summaries of the data sets are provided, and CR values for 39 elements and 12 RAP combinations are given. The data coverage, reliance on derived values, and applicability of the CR approach for each of the RAPs is discussed. Finally, some consideration is given to approaches where RAPs and their life stages could be measured for the elements of interest under more rigorously controlled conditions to help fill the current data gaps. PMID:22108188

Strand, P; Beresford, N; Copplestone, D; Godoy, J; Jianguo, L; Saxn, R; Yankovich, T; Brown, J

2009-12-01

182

Application of Digital Technology for the Plant Protection System in Ulchin Nuclear Power Plant Units 5 and 6  

Microsoft Academic Search

Since the completion of construction of Ulchin Nuclear Power Plant Units 3 and 4 (UCN 3 and 4), the first units of the OPR (Optimized Power Reactor) series, various advanced design features have been incorporated to the following OPRs. The Ulchin Nuclear Power Plant Units 5 and 6(UCN 5 and 6) which started commercial operation in Korea from 2004 and

Lee Deucksoo; Kim Insik

2006-01-01

183

Plant-Produced Cottontail Rabbit Papillomavirus L1 Protein Protects against Tumor Challenge: a Proof-of-Concept Study  

PubMed Central

The native cottontail rabbit papillomavirus (CRPV) L1 capsid protein gene was expressed transgenically via Agrobacterium tumefaciens transformation and transiently via a tobacco mosaic virus (TMV) vector in Nicotiana spp. L1 protein was detected in concentrated plant extracts at concentrations up to 1.0 mg/kg in transgenic plants and up to 0.4 mg/kg in TMV-infected plants. The protein did not detectably assemble into viruslike particles; however, immunoelectron microscopy showed presumptive pentamer aggregates, and extracted protein reacted with conformation-specific and neutralizing monoclonal antibodies. Rabbits were injected with concentrated protein extract with Freund's incomplete adjuvant. All sera reacted with baculovirus-produced CRPV L1; however, they did not detectably neutralize infectivity in an in vitro assay. Vaccinated rabbits were, however, protected against wart development on subsequent challenge with live virus. This is the first evidence that a plant-derived papillomavirus vaccine is protective in an animal model and is a proof of concept for human papillomavirus vaccines produced in plants. PMID:16893983

Kohl, T.; Hitzeroth, I. I.; Stewart, D.; Varsani, A.; Govan, V. A.; Christensen, N. D.; Williamson, A.-L.; Rybicki, E. P.

2006-01-01

184

The Material Protection, Control and Accounting Sustainability Program Implementation at the Electrochemical Plant  

SciTech Connect

Joint efforts by the Electrochemical Plant (ECP) in Zelenogorsk, Russia, and the United States Department of Energy National Nuclear Security Administration (US DOE/NNSA) Material Protection, Control and Accounting (MPC&A) Program to upgrade ECP security systems began in 1996. The commissioning of major MPC&A systems at ECP occurred in December 2004. Since that time, the US Project Team (USPT) and ECP personnel have focused jointly on the development and implementation of an enterprise-wide MPC&A Sustainability Program (SP) that address the seven essential MPC&A Program sustainability elements. This paper describes current operational experience at the ECP with the full implementation of the site SP utilizing an earned-value methodology. In support of this site program, ECP has established a Document Control Program (DCP) for sustainability-related documents; developed a robust master Work Breakdown Structure (WBS) that outlines all ECP MPC&A sustainability activities; and chartered an Enterprise-Wide Sustainability Working Group (ESWG) The earned value methodology uses ECP-completed (and USPT-verified) analyses to assess project performance on a quarterly basis. The MPC&A SP, presently operational through a contract between ECP and the Los Alamos National Laboratory (LANL), incorporates the seven essential MPC&A Program sustainability elements and governs all sustainability activities associated with MPC&A systems at ECP. The site SP is designed to ensure over the near term the upgraded MPC&A systems continuous operation at ECP as funding transitions from US-assisted to fully Russian supported and sustained.

Sirotenko, Vladimir; Antonov, Eduard; Sirotenko, Alexei; Kukartsev, Alexander; Krivenko, Vladimir; Dabbs, Richard D.; Carroll, Michael F.; Garrett, Albert G.; Patrick, Scott W.; Ku, Esther M.

2008-06-10

185

Year-round behaviour of soil microarthropod communities under plant protection product application.  

PubMed

The use of plant protection products (PPPs) in agro-environments can lead to undesired exposure of non-target organisms in non-target compartments. A year-round field survey was conducted in a vineyard in Northern Italy, for monitoring the changes in the structure of soil microarthropod communities under the application of PPPs, focusing on springtails and mites, both inside and 4 and 10 m outside the vineyard. Exposure to PPPs was estimated as time-weighted average soil concentrations. The fluctuations in the abundances of the different organisms after the application of PPPs, especially insecticides, were recorded. A recovery in abundances was observed at the end of the productive season outside the field and at the beginning of the next spring within the vineyard. Using multivariate statistical tools, the behaviour of each taxon in relation to the stressors was assessed. Some organisms were affected by the stressors, while others were favoured because of low vulnerability to PPPs and the indirect effect of the absence of other taxa. The principal response curves (PRC) method was the most sensitive tool for assessing PPP effects on soil arthropod communities. Strong differences were evident in the structure of the communities inside and outside the vineyard, with the communities sampled 4 and 10 m outside the vineyard being fairly similar, the latter considered as control. The role of physical stressors on community composition is recognised. However, chemical stressors, and in particular PPP exposure seemed to have larger effects on structural and functional characteristics of soil arthropod communities than physical stressors. PMID:24671560

Vaj, Claudia; Van Gestel, Cornelis A M; Vighi, Marco

2014-07-01

186

Cooperative efforts of the materials protection control and accounting program at the electrochemical plant (Krasnoyarsk-45) in Russia-011  

SciTech Connect

The USDOE Material Protection Control and Accountability Program (MPC&A) has established a Project Team with the goal of providing the Russian Electrochemical Plant (ECP) with equipment and training to enable ECP to evaluate, develop, and implement a comprehensive plan and systems for physical protection, material controls, and accountancy upgrades. The MPC&A project will provide for improvements such as risk assessments, access control upgrades, computerized MC&A, communications systems upgrades, building perimeter surveillance and intrusion detection upgrades, vault upgrades, metal and nuclear material detection upgrades, along with mass measurement and non- destructive analysis (NDA) instrumentation. This paper outlines the overall objectives of the MPC&A project at the Electrochemical Plant.

Moore, L.

1998-07-22

187

Modeling the dynamics of iodine in the protective shell during accidents in nuclear power plants with VVER  

Microsoft Academic Search

During a loss-of-coolant and core meltdown accident at a nuclear power plant fission products enter the atmosphere inside\\u000a the protective shell. One of the main factors determining the effect on the environment, the dose loads in personnel and the\\u000a general public in the first days after the accident is radioactive iodine. To evaluate the mass of the radioactive iodine\\u000a entering

L. E. Lebedev; V. V. Bezlepkin; S. E. Semashko; A. S. Frolov

2010-01-01

188

DETERMINATION OF PROGRAM PROTECTION FACTORS FOR HALF-MASK RESPIRATORS USED AT A MINERAL SANDS SEPARATION PLANT  

Microsoft Academic Search

A study was conducted at a mineral sands separation plant to evaluate the workplace performance of half-mask filter cartridge respirators. Inhalation exposure was estimated by measuring the dust and radioactivity concentration inside the respirator while it was worn or hanging around the worker's neck. The program protection factor was determined by simultaneously measuring inside-mask and ambient (outside-mask) concentrations. A total

Gregory S. Hewson; Martin I. Ralph

1992-01-01

189

Drugs from bugs: the use of insects as a valuable source of transgenes with potential in modern plant protection strategies  

Microsoft Academic Search

Transgenic expression of antimicrobial peptides in crops has become a novel approach among the strategies to combat phytopathogens\\u000a in modern plant protection measures. The first antimicrobial transgenes of insect origin, modified cecropins, have been demonstrated\\u000a to confer resistance of several transgenic cultivars against both bacterial and fungal phytopathogens. Insects represent a\\u000a promising reservoir for antimicrobial peptides to engineer disease resistant

Andreas Vilcinskas; Jrgen Gross

2005-01-01

190

Spray deposits of crop protection products on plants--the potential exposure of non-target arthropods.  

PubMed

Spray deposits of plant protection products on cultivated plants present a potential hazard to non-target arthropods. This hazard is considered in the risk assessment procedure when such products are registered. The results of deposit measurements in the laboratory and field, including mean spray deposits on plant surfaces, their variability and their relation to the delivered dose are presented. Initial deposits expressed as ng/cm2 plant surface were measured on individual leaves of various plant species using a fluorescent tracer. The results show that the mean deposit is plant-specific but with a high degree of variability. Mean deposits on field-grown cereals were 3, 9 (growth stage BBCH 10) and 4, 7-14 ng/cm2 (growth stage BBCH 29-63) at a delivered dose rate of 20 g sodium flourescein (SF) per ha. This is equivalent to 200 ng tracer per cm2 ground area. On apple leaves, mean deposits varied between 18 and 50 ng/cm2 at a rate of 20 g tracer/10,000 m2 fruitwall. Coefficients of variation of leaf deposits ranged between 30% and 90%. In addition to the leaf-to-leaf variability, there was a notable variation of the deposit on individual leaves themselves as shown for wheat. Data from field measurements were supported principally by data from tray-grown plants on a laboratory spray track which gives information on targets positioned in a more or less two-dimensional system. PMID:11444314

Koch, H; Weisser, P

2001-07-01

191

Cost effectiveness in site selection to protect native plant communities from the weed, bitou bush, in New South Wales, Australia.  

PubMed

Government funding to protect native plant communities is usually limited. For cost effectiveness, priority sites for conservation must therefore be identified and funds allocated to protect these sites according to the quantity of communities conserved per dollar of cost. In 1999, invasion of coastal vegetation in New South Wales (NSW) by bitou bush was listed as a key threatening process under the NSW Threatened Species Conservation Act 1995. In accordance with the Act, a Threat Abatement Plan (TAP) was prepared to reduce the impacts of the weed to threatened biodiversity at priority sites. In the present study, data collected for the TAP were analysed by linear programming to determine the feasibility of achieving cost effectiveness in identifying sites and allocating funds, and to explore the impact of associated economic issues on the quantity of native plant communities that are protected. In addition to the total funds and costs per site, the quantity was influenced by alternative funding policies and different site selection strategies. Allocations that recognise these issues can enhance protection outcomes, and promote the cost effectiveness of weed management. PMID:23933220

Sinden, Jack; Downey, Paul; Cacho, Oscar; Hester, Susan

2013-10-15

192

Pathogenesis-related protein expression in the apoplast of wheat leaves protected against leaf rust following application of plant extracts.  

PubMed

Leaf rust (Puccinia triticina) is a major disease of wheat. We tested aqueous leaf extracts of Jacaranda mimosifolia (Bignoniaceae), Thevetia peruviana (Apocynaceae), and Calotropis procera (Apocynaceae) for their ability to protect wheat from leaf rust. Extracts from all three species inhibited P. triticina urediniospore germination in vitro. Plants sprayed with extracts before inoculation developed significantly lower levels of disease incidence (number of plants infected) than unsprayed, inoculated controls. Sprays combining 0.6% leaf extracts and 2 mM salicylic acid with the fungicide Amistar Xtra at 0.05% (azoxystrobin at 10 ?g/liter + cyproconazole at 4 ?g/liter) reduced disease incidence significantly more effectively than sprays of fungicide at 0.1% alone. Extracts of J. mimosifolia were most active, either alone (1.2%) or in lower doses (0.6%) in combination with 0.05% Amistar Xtra. Leaf extracts combined with fungicide strongly stimulated defense-related gene expression and the subsequent accumulation of pathogenesis-related (PR) proteins in the apoplast of inoculated wheat leaves. The level of protection afforded was significantly correlated with the ability of extracts to increase PR protein expression. We conclude that pretreatment of wheat leaves with spray formulations containing previously untested plant leaf extracts enhances protection against leaf rust provided by fungicide sprays, offering an alternative disease management strategy. PMID:24624956

Naz, Rabia; Bano, Asghari; Wilson, Neil L; Guest, David; Roberts, Thomas H

2014-09-01

193

Pinellas Plant Groundwater Protection Management Program Plan. Revision 1: Environmental, safety and health  

SciTech Connect

The GPMP Plan outlines the program in place at the Pinellas Plant to detect and monitor contaminated groundwater which may have become contaminated by materials and waste. Successful implementation of the Pinellas Plant GPMP will result in knowledge of groundwater conditions which will ensure that risks to human health and safety and to the environment posed by the plant`s past, present, and future operations are quickly identified and referred to the Environmental Restoration (ER) Program for remediation.

Weesner, B.E.

1994-09-09

194

La sclrotiniose des trfles et luzernes Sclerotinia trifoliorum Eriks.  

E-print Network

dans la pratique. Des implants mycéliens jeunes déposés au collet des plantes donnent les meilleurs obtenus avec des implants mycéliens sur 2 cultivars de luzerne, « Ancre» et « Magali », dont les niveaux on the collars of plants gave best results if plants were kept for a short time (96 h) at R.H. 100 p. 100 after

Paris-Sud XI, Université de

195

Protective action of midgut catalase in lepidopteran larvae against oxidative plant defenses  

Microsoft Academic Search

Catalase activity was detected in the midgut tissues and regurgitate of several lepidopteran pests of the tomato plant. Greatest activity in the midgut was detected in larvalHelicoverpa zea, followed bySpodoptera exigua, Manduca sexta, andHeliothis virescens. We present evidence that catalase, in addition to removing toxic hydrogen peroxide, may inhibit the oxidation of plant phenolics mediated by plant peroxidases. Small amounts

Gary W. Felton; Sean S. Duffey

1991-01-01

196

Inactivated recombinant plant virus protects dogs from a lethal challenge with canine parvovirus  

Microsoft Academic Search

A vaccine based upon a recombinant plant virus (CPMV-PARVO1), displaying a peptide derived from the VP2 capsid protein of canine parvovirus (CPV), has previously been described. To date, studies with the vaccine have utilized viable plant chimaeric particles (CVPs). In this study, CPMV-PARVO1 was inactivated by UV treatment to remove the possibility of replication of the recombinant plant virus in

Jan P. M Langeveld; Frank R Brennan; Jorge L Mart??nez-Torrecuadrada; Tim D Jones; Ronald S Boshuizen; Carmen Vela; J. Ignacio Casal; Sren Kamstrup; Kristian Dalsgaard; Rob H Meloen; Mary M Bendig; William D. O Hamilton

2001-01-01

197

Check list for introduction of new employees at the Department of Plant Protection Biology, SLU, Alnarp.  

E-print Network

, "Företagshälsan" 3. Holidays and on leave of absence 4. Insurance 5. Information folders, map, bank, stores. Protective clothing and glasses 7. Hoods, gases, organic solvents, distillation Rearing manager

198

Hexaconazole induces antioxidant protection and apigenin-7-glucoside accumulation in Matricaria chamomilla plants subjected to drought stress.  

PubMed

In this experiment, the possibility of enhancing the water deficit stress tolerance of chamomile (Matricaria chamomilla L.) during two growth stages by the exogenous application of hexaconazole (HEX) was investigated. To improve water deficit tolerance, HEX was applied in three concentrations during two different stages (50 and 80 days after sowing). After HEX applications, the plants were subjected to water deficit stress. Although all HEX concentrations improved the water deficit stress tolerance in chamomile plants, the application of 15 mg L(-1) provided better protection when compared to the other concentration. The exogenous application of HEX provided significant protection against water deficit stress compared to non-HEX-treated plants, significantly affecting the morphological characteristics and aspects of productivity, the relative water, protein and proline contents; non-enzymatic and enzymatic antioxidants; and the flower's apigenin-7-glucoside content. These results suggest that the HEX-induced tolerance to water deficit stress in chamomile was related to the changes in growth variables, antioxidants and the apigenin-7-glucoside content. PMID:21208683

Hojati, Mostafa; Modarres-Sanavy, Seyed Ali Mohammad; Ghanati, Faezeh; Panahi, Mehdi

2011-05-15

199

Predators indirectly protect tundra plants by reducing herbivore Peter A. Hamback, Lauri Oksanen, Per Ekerholm, A sa Lindgren, Tarja Oksanen and Michael Schneider  

E-print Network

Predators indirectly protect tundra plants by reducing herbivore abundance Peter A. Hamba¨ck, Lauri., Ekerholm, P., Lindgren, A° ., Oksanen, T. and Schneider, M. 2004. Predators indirectly protect tundra cascades are rare in terrestrial habitats. To examine the potential of trophic cascades in a shrubby tundra

Oksanen, Lauri

200

Induced plant defenses breached? Phytochemical induction protects an herbivore from disease  

Microsoft Academic Search

Although wound-induced responses in plants are widespread, neither the ecological nor the evolutionary significance of phytochemical induction is clear. Several studies have shown, for example, that induced responses can act against both plant pathogens and herbivores simultaneously. We present the first evidence that phytochemical induction can inhibit a pathogen of the herbivore responsible for the defoliation. In 1990, we generated

Mark D. Hunter; Jack C. Schultz

1993-01-01

201

ADVANCES IN THE APPLICATION OF REMOTE SENSING TO PLANT INCORPORATED PROTECTANT CROP MONITORING  

EPA Science Inventory

Current forecasts call for significant increases to the plantings of transgenic corn in the United States for the 2007 growing season and beyond. Transgenic acreage approaching 80% of the total corn plantings could be realized by 2009. These conditions call for a new approach to ...

202

Evaluation of error detection coverage and fault-tolerance of digital plant protection system in nuclear power plants  

Microsoft Academic Search

Recently, traditional analog-based safety-related instrumentation and control (I&C) systems in nuclear power plants (NPPs) have been replaced with modern digital-based systems. Due to the digitalization of nuclear I&C systems, the safety assessment has become a major issue, as it is crucial to the systems reliability. In the safety assessment of the digitalized system, evaluation of error detection coverage and fault-tolerance

Jun Seok Lee; Man Cheol Kim; Poong Hyun Seong; Hyun Gook Kang; Seung Cheol Jang

2006-01-01

203

Antioxidant activity of herbaceous plant extracts protect against hydrogen peroxide-induced DNA damage in human lymphocytes  

PubMed Central

Background Herbaceous plants containing antioxidants can protect against DNA damage. The purpose of this study was to evaluate the antioxidant substances, antioxidant activity, and protection of DNA from oxidative damage in human lymphocytes induced by hydrogen peroxide (H2O2). Our methods used acidic methanol and water extractions from six herbaceous plants, including Bidens alba (BA), Lycium chinense (LC), Mentha arvensis (MA), Plantago asiatica (PA), Houttuynia cordata (HC), and Centella asiatica (CA). Methods Antioxidant compounds such as flavonol and polyphenol were analyzed. Antioxidant activity was determined by the inhibition percentage of conjugated diene formation in a linoleic acid emulsion system and by trolox-equivalent antioxidant capacity (TEAC) assay. Their antioxidative capacities for protecting human lymphocyte DNA from H2O2-induced strand breaks was evaluated by comet assay. Results The studied plants were found to be rich in flavonols, especially myricetin in BA, morin in MA, quercetin in HC, and kaemperol in CA. In addition, polyphenol abounded in BA and CA. The best conjugated diene formation inhibition percentage was found in the acidic methanolic extract of PA. Regarding TEAC, the best antioxidant activity was generated from the acidic methanolic extract of HC. Water and acidic methanolic extracts of MA and HC both had better inhibition percentages of tail DNA% and tail moment as compared to the rest of the tested extracts, and significantly suppressed oxidative damage to lymphocyte DNA. Conclusion Quercetin and morin are important for preventing peroxidation and oxidative damage to DNA, and the leaves of MA and HC extracts may have excellent potential as functional ingredients representing potential sources of natural antioxidants. PMID:24279749

2013-01-01

204

La diffusion des sciences et des techniques l'Universit de Lige socit botANiqUe de Lige  

E-print Network

, floristique des plantes supérieures et des champignons, conservation de la nature, problèmes écologiques et'intéresse plus particulièrement aux sujets en rapport avec la conservation de la nature, à la vulgarisation récoltes des visiteurs par des spécialistes. - Animations enfants. Balade en forêt (pour les familles) à 11

Liège, Université de

205

Probability analysis of unrevealed faults in nuclear power plant protection systems  

SciTech Connect

In reliability analysis of an equipment within automatic protection systems the safety assessor is faced with two distinct failure conditions namely: fail-safe failures which place the equipment in a safe condition, and fail-dangerous failures which may render the equipment inoperative since the fault may not reveal itself unless extensive tests are done upon it. This paper develops basic probability models for unrevealed faults of single and redundant equipment within protection systems. Results reveal that high safety system availability is achieved by improved test methods, equipment redundancy, and, the use of majority voting trip logic.

Lisboa, J.J.

1989-02-01

206

76 FR 14358 - Pesticides; Data Requirements for Plant-Incorporated Protectants (PIPs) and Certain Exemptions...  

Federal Register 2010, 2011, 2012, 2013

...number of PIPs seeking registration. Cisgenic PIPs are formed when genetic material is transferred, using bioengineering technology, between plants that could transfer the genetic material naturally. DATES: Comments must be received on or...

2011-03-16

207

EPA (ENVIRONMENTAL PROTECTION AGENCY) DESIGN INFORMATION REPORT: SIDESTREAMS IN WASTEWATER TREATMENT PLANTS  

EPA Science Inventory

Performance problems at publicly-owned treatment works are often attributed to the recycling of sidestreams generated in the wastewater treatment and sludge handling systems. Although the volumes of these sidestreams are generally small compared to plant influent flows, sidestrea...

208

Rangeland Watershed Management for Texans: Know Your Plants to Protect Your Watershed  

E-print Network

plants), and now you are growing low successional grasses such as hairy tridens or red grama (both are short- rooted, perennial, native grasses), your land may have been overgrazed or otherwise poorly managed in the past. These low successional plants do... rainfall infiltra- tion rates and decreases erosion. Deep-rooted perennial grasses create a more stable environment than do short- rooted grasses. Without good litter cover on the soil, the soil surface is exposed to full sunlight, higher temperatures...

Rector, Barron S.

2000-10-30

209

Low light grown duckweed plants are more protected against the toxicity induced by Zn and Cd  

Microsoft Academic Search

Duckweed (Lemna minor L.) plants acclimated to three light regimes: 50 low light (LL), 300 medium light (ML) and 500 high light (HL) ?molm2s1 photosynthetic photon flux density (PPFD) increased photoprotective potential according to irradiance status as shown by the two- to fourfold higher contents of xanthophyll cycle pigments (VAZ), total glutathione (GLU) and ?-tocopherol. LL, ML and HL plants

Unai Artetxe; Jos Ignacio Garca-Plazaola; Antonio Hernndez; Jos M. Becerril

2002-01-01

210

New Plant Growth Regulators Protect Photosynthesis and Enhance Growth Under Drought of Jack Pine Seedlings  

Microsoft Academic Search

. To determine whether natural plant growth regulators (PGRs) can enhance drought tolerance and the competitive ability of\\u000a transplanted seedlings, 1.5-year-old jack pine (Pinus banksana Lamb.) seedlings were treated with homobrassinolide, salicylic acid, and two polyamines, spermine and spermidine, triacontanol,\\u000a abscisic acid (ABA), and the synthetic antioxidant, Ambiol. PGRs were fed into the xylem for 7 days and plants were

L. R. Rajasekaran; T. J. Blake

1999-01-01

211

Invasive alien plants in marine protected areas: the Spartina anglica affair in the European Wadden Sea  

Microsoft Academic Search

The common cord-grass Spartina anglica, a fertile hybrid of S.maritima and S.alterniflora, was planted in the European Wadden Sea extensively during the late 1920s and 1930s to promote sediment accretion. After\\u000a establishment, it colonised as a pioneer plant in the upper tidal zone, where it occurs frequently in coherent swards at the\\u000a seaward front of saltmarshes and in patches on

Stefan Nehring; Karl-Jrgen Hesse

2008-01-01

212

Cotton plants transformed with a bacterial degradation gene are protected from accidental spray drift damage by the herbicide 2,4-dichlorophenoxyacetic acid  

Microsoft Academic Search

The agronomic performance of broad leaved crop plants such as cotton would be greatly improved if genetically-engineered resistance to broadleaf herbicides could both protect the plants from accidental spray drift damage and allow the suppression of problem broadleaf weeds by chemical means. Followingin vitro modification and the addition of plant expression signals, the gene for 2,4-D monooxygenase, a bacterial enzyme

Bruce R. Lyon; Yvonne L. Cousins; Danny J. Llewellyn; Elizabeth S. Dennis

1993-01-01

213

Vaccination with Recombinant Adenoviruses Expressing the Peste des Petits Ruminants Virus F or H Proteins Overcomes Viral Immunosuppression and Induces Protective Immunity against PPRV Challenge in Sheep  

PubMed Central

Peste des petits ruminants (PPR) is a highly contagious disease of small ruminants caused by the Morbillivirus peste des petits ruminants virus (PPRV). Two recombinant replication-defective human adenoviruses serotype 5 (Ad5) expressing either the highly immunogenic fusion protein (F) or hemagglutinin protein (H) from PPRV were used to vaccinate sheep by intramuscular inoculation. Both recombinant adenovirus vaccines elicited PPRV-specific B- and T-cell responses. Thus, neutralizing antibodies were detected in sera from immunized sheep. In addition, we detected a significant antigen specific T-cell response in vaccinated sheep against two different PPRV strains, indicating that the vaccine induced heterologous T cell responses. Importantly, no clinical signs and undetectable virus shedding were observed after virulent PPRV challenge in vaccinated sheep. These vaccines also overcame the T cell immunosuppression induced by PPRV in control animals. The results indicate that these adenovirus constructs could be a promising alternative to current vaccine strategies for the development of PPRV DIVA vaccines. PMID:25013961

Rojas, Jose M.; Moreno, Hector; Valcarcel, Felix; Pena, Lourdes; Sevilla, Noemi; Martin, Veronica

2014-01-01

214

Methylobacterium-Induced Endophyte Community Changes Correspond with Protection of Plants against Pathogen Attack  

PubMed Central

Plant inoculation with endophytic bacteria that normally live inside the plant without harming the host is a highly promising approach for biological disease control. The mechanism of resistance induction by beneficial bacteria is poorly understood, because pathways are only partly known and systemic responses are typically not seen. The innate endophytic community structures change in response to external factors such as inoculation, and bacterial endophytes can exhibit direct or indirect antagonism towards pathogens. Earlier we showed that resistance induction by an endophytic Methylobacterium sp. in potato towards Pectobacterium atrosepticum was dependent on the density of the inoculum, whereas the bacterium itself had no antagonistic activity. To elucidate the role of innate endophyte communities in plant responses, we studied community changes in both in vitro and greenhouse experiments using various combinations of plants, endophyte inoculants, and pathogens. Induction of resistance was studied in several potato (Solanum tuberosum L.) cultivars by Methylobacterium sp. IMBG290 against the pathogens P. atrosepticum, Phytophthora infestans and Pseudomonas syringae pv. tomato DC3000, and in pine (Pinus sylvestris L.) by M. extorquens DSM13060 against Gremmeniella abietina. The capacities of the inoculated endophytic Methylobacterium spp. strains to induce resistance were dependent on the plant cultivar, pathogen, and on the density of Methylobacterium spp. inoculum. Composition of the endophyte community changed in response to inoculation in shoot tissues and correlated with resistance or susceptibility to the disease. Our results demonstrate that endophytic Methylobacterium spp. strains have varying effects on plant disease resistance, which can be modulated through the endophyte community of the host. PMID:23056459

Ardanov, Pavlo; Sessitsch, Angela; Haggman, Hely; Kozyrovska, Natalia; Pirttila, Anna Maria

2012-01-01

215

Proline does not quench singlet oxygen: evidence to reconsider its protective role in plants.  

PubMed

Plants are commonly subjected to several environmental stresses that lead to an overproduction of reactive oxygen species (ROS). As plants accumulate proline in response to stress conditions, some authors have proposed that proline could act as a non-enzymatic antioxidant against ROS. One type of ROS aimed to be quenched by proline is singlet oxygen ((1)O(2))-molecular oxygen in its lowest energy electronically excited state-constitutively generated in oxygenic, photosynthetic organisms. In this study we clearly prove that proline cannot quench (1)O(2) in aqueous buffer, giving rise to a rethinking about the antioxidant role of proline against (1)O(2). PMID:23384940

Signorelli, Santiago; Arellano, Juan Bautista; Mel, Thor Bernt; Borsani, Omar; Monza, Jorge

2013-03-01

216

In vitro protection of DNA from Fenton reaction by plant polyphenol verbascoside  

Microsoft Academic Search

The protection effect of verbascoside (Ver) against Fenton reaction on plasmid pBR322 DNA was studied using agarose gel electrophoresis and UV-visible spectroscopy. The pBR322 plasmid DNA is damaged by hydroxyl radical (OH) generated from the Fenton reaction with H2O2 and Fe(II) or Fe(III). This DNA damage is characterized by the diminution of supercoiled DNA forms or by the increase of

Chenyang Zhao; Guy Dodin; Chenshan Yuan; Haifeng Chen; Rongliang Zheng; Zhongjian Jia; Bo-Tao Fan

2005-01-01

217

A plant-produced H1N1 trimeric hemagglutinin protects mice from a lethal influenza virus challenge  

PubMed Central

The increased worldwide awareness of seasonal and pandemic influenza, including pandemic H1N1 virus, has stimulated interest in the development of economic platforms for rapid, large-scale production of safe and effective subunit vaccines. In recent years, plants have demonstrated their utility as such a platform and have been used to produce vaccine antigens against various infectious diseases. Previously, we have produced in our transient plant expression system a recombinant monomeric hemagglutinin (HA) protein (HAC1) derived from A/California/04/09 (H1N1) strain of influenza virus and demonstrated its immunogenicity and safety in animal models and human volunteers. In the current study, to mimic the authentic HA structure presented on the virus surface and to improve stability and immunogenicity of the HA antigen, we generated trimeric HA by introducing a trimerization motif from a heterologous protein into the HA sequence. Here, we describe the engineering, production in Nicotiana benthamiana plants, and characterization of the highly purified recombinant trimeric HA protein (tHA-BC) from A/California/04/09 (H1N1) strain of influenza virus. The results demonstrate the induction of serum hemagglutination inhibition antibodies by tHA-BC and its protective efficacy in mice against a lethal viral challenge. In addition, the immunogenic and protective doses of tHA-BC were much lower compared with monomeric HAC1. Further investigation into the optimum vaccine dose and/or regimen as well as the stability of trimerized HA is necessary to determine whether trimeric HA is a more potent vaccine antigen than monomeric HA. PMID:23296194

Shoji, Yoko; Jones, R. Mark; Mett, Vadim; Chichester, Jessica A.; Musiychuk, Konstantin; Sun, Xiangjie; Tumpey, Terrence M.; Green, Brian J.; Shamloul, Moneim; Norikane, Joey; Bi, Hong; Hartman, Caitlin E.; Bottone, Cory; Stewart, Michelle; Streatfield, Stephen J.; Yusibov, Vidadi

2013-01-01

218

NON-TARGET AND ECOSYSTEM IMPACTS FROM GENETICALLY MODIFIED CROPS CONTAINING PLANT INCORPORATED PROTECTANTS (PIPS)  

EPA Science Inventory

The risk of unintended and unexpected adverse impacts on non-target organisms and ecosystems is a key issue in environmental risk assessment of PIP crop plants. While there has been considerable examination of the effects of insect resistant crops on certain non-target organisms...

219

An Investigation of Two Modes of Plant Protection by the Biocontrol Agent Trichoderma virens  

E-print Network

when grown in association with plant roots and in still-culture. The Pichia pastoris protein expression system was used to generate sufficient quantities of SM3 to allow characterization of its function. The purified protein from the yeast system (pic...

Crutcher, Frankie

2012-02-14

220

Association with mature plants protects seedlings from predation in an arid grassland shrub, Gutierrezia microcephala  

Microsoft Academic Search

Survivorship of Gutierrezia microcephala (Compositae) seedlings was studied in an undisturbed arid grassland and in experimental plots where various components of the natural vegetation were removed following seed germination. The major causes of seedling mortality were herbivore damage from the specialist grasshopper, Hesperotettix viridis, and drought stress associated with competition from established plants. The relative intensity of these mortality factors

Matthew A. Parker

1982-01-01

221

Drowning out the protection racket: partner manipulation or drought can strengthen ant-plant mutualism.  

PubMed

Two recent reports discuss interactions between plants and ants that defend them from herbivores. Acacia trees provide their ant bodyguards with a diet that reduces their ability to benefit from alternate hosts. Provisioning of ants by Cordia trees during drought may buy insurance against extreme defoliation events, not just average-year benefits. PMID:24815041

Denison, R Ford

2014-07-01

222

Polevkivienergeetika ja keskkonna saastumine. (Utilization of oil shale in power plants and environmental protection).  

National Technical Information Service (NTIS)

Estonia n oil shale was first used as a power fuel in 1924 at the Tallinn Power Plant. The first pulverized oil-shale-fired steam boilers were used in the end of forties. A new period in the utilization of the Estonia n oil shale began in the years of 195...

A. Ots

1994-01-01

223

Protective Role of Plant Sterol and Stanol Esters in Liver Inflammation: Insights from Mice and Humans  

PubMed Central

The inflammatory component of nonalcoholic steatohepatitis (NASH) can lead to irreversible liver damage. Therefore there is an urgent need to identify novel interventions to combat hepatic inflammation. In mice, omitting cholesterol from the diet reduced hepatic inflammation. Considering the effects of plant sterol/stanol esters on cholesterol metabolism, we hypothesized that plant sterol/stanol esters reduces hepatic inflammation. Indeed, adding plant sterol/stanol esters to a high-fat-diet reduced hepatic inflammation as indicated by immunohistochemical stainings and gene expression for inflammatory markers. Finally, adding sterol/stanol esters lowered hepatic concentrations of cholesterol precursors lathosterol and desmosterol in mice, which were highly elevated in the HFD group similarly as observed in severely obese patients with NASH. In vitro, in isolated LPS stimulated bone marrow derived macrophages desmosterol activated cholesterol efflux whereas sitostanol reduced inflammation. This highly interesting observation that plant sterol/stanol ester consumption leads to complete inhibition of HFD-induced liver inflammation opens new venues in the treatment and prevention of hepatic inflammation. PMID:25356831

Plat, Jogchum; Hendrikx, Tim; Bieghs, Veerle; Jeurissen, Mike L. J.; Walenbergh, Sofie M. A.; van Gorp, Patrick J.; De Smet, Els; Konings, Maurice; Vreugdenhil, Anita C. E.; Guichot, Yasmin Dias; Rensen, Sander S.; Buurman, Wim A.; Greve, Jan Willem M.; Lutjohann, Dieter; Mensink, Ronald P.; Shiri-Sverdlov, Ronit

2014-01-01

224

Integrating Nonindigenous Aquatic Plant Control with Protection of Snail Kite Nests in Florida  

Microsoft Academic Search

The endangered snail kite (Rostrhamus sociabilis) feeds primarily on the freshwater apple snail (Pomacea paludosa) in Florida. The nonindigenous, floating water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes) impede kites from finding snails. Effective control of these aquatic plants in the littoral zone of central and south Florida\\u000a lakes benefits kites by maintaining open foraging habitat. However, incidental herbicide

HENRY T. SMITH; DANIEL D. THAYER

2001-01-01

225

Does isoprene protect plant membranes from thermal shock? A molecular dynamics study  

Microsoft Academic Search

The question of why plants release isoprene when heat stressed has been continuously debated for more than half a century. In this work we use molecular dynamics simulation techniques to directly investigate the interaction between isoprene and a model phospholipid membrane in atomic detail. It is found that isoprene partitions preferentially in the center of the membrane and in a

Magdalena E. Siwko; Siewert J. Marrink; Alex H. de Vries; Arkadiusz Kozubek; Anton J. M. Schoot Uiterkamp; Alan E. Mark

2007-01-01

226

Integrating nonindigenous aquatic plant control with protection of snail kite nests in Florida.  

PubMed

The endangered snail kite (Rostrhamus sociabilis) feeds primarily on the freshwater apple snail (Pomacea paludosa) in Florida. The nonindigenous, floating water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes) impede kites from finding snails. Effective control of these aquatic plants in the littoral zone of central and south Florida lakes benefits kites by maintaining open foraging habitat. However, incidental herbicide spraying of nesting substrates result in nest collapse when kites breed in nonwoody, emergent plants [cattail (Typha spp.) and giant bulrush (Scirpus validus)] in the outer littoral zone during lower lake levels. Many endangered species recovery plans and their implementation have experienced problems due to inaction and/or noncooperation by various governmental agencies and their personnel. Herein, we describe the development and implementation of a buffer zone strategy to prevent secondary impacts from an aquatic plant control program to snail kites nesting on lakes in central and south Florida. A strategy was jointly developed by personnel of five state and federal agencies to control herbicide application near kite nesting areas during the normal breeding season. Although requiring various modifications during its implementation, this cooperative effort successfully integrated aquatic plant control objectives with snail kite conservation on Lake Okeechobee during 1988. The program was expanded the following year to lakes Kissimmee and Tohopekaliga. Since the implementation of the snail kite impact preclusion program, no nest loss was attributed to incidental herbicide applications on lakes Okeechobee, Kissimmee, and Tohopekaliga. PMID:11436998

Rodgers, J A; Smith, H T; Thayer, D D

2001-07-01

227

A gene horizontally transferred from bacteria protects arthropods from host plant cyanide poisoning  

PubMed Central

Cyanogenic glucosides are among the most widespread defense chemicals of plants. Upon plant tissue disruption, these glucosides are hydrolyzed to a reactive hydroxynitrile that releases toxic hydrogen cyanide (HCN). Yet many mite and lepidopteran species can thrive on plants defended by cyanogenic glucosides. The nature of the enzyme known to detoxify HCN to ?-cyanoalanine in arthropods has remained enigmatic. Here we identify this enzyme by transcriptome analysis and functional expression. Phylogenetic analysis showed that the gene is a member of the cysteine synthase family horizontally transferred from bacteria to phytophagous mites and Lepidoptera. The recombinant mite enzyme had both ?-cyanoalanine synthase and cysteine synthase activity but enzyme kinetics showed that cyanide detoxification activity was strongly favored. Our results therefore suggest that an ancient horizontal transfer of a gene originally involved in sulfur amino acid biosynthesis in bacteria was co-opted by herbivorous arthropods to detoxify plant produced cyanide. DOI: http://dx.doi.org/10.7554/eLife.02365.001 PMID:24843024

Wybouw, Nicky; Dermauw, Wannes; Tirry, Luc; Stevens, Christian; Grbic, Miodrag; Feyereisen, Rene; Van Leeuwen, Thomas

2014-01-01

228

Defined plant extracts can protect human cells against combined xenobiotic effects  

PubMed Central

Background Pollutants representative of common environmental contaminants induce intracellular toxicity in human cells, which is generally amplified in combinations. We wanted to test the common pathways of intoxication and detoxification in human embryonic and liver cell lines. We used various pollutants such as Roundup residues, Bisphenol-A and Atrazine, and five precise medicinal plant extracts called Circ1, Dig1, Dig2, Sp1, and Uro1 in order to understand whether specific molecular actions took place or not. Methods Kidney and liver are major detoxification organs. We have studied embryonic kidney and hepatic human cell lines E293 and HepG2. The intoxication was induced on the one hand by a formulation of one of the most common herbicides worldwide, Roundup 450 GT+ (glyphosate and specific adjuvants), and on the other hand by a mixture of Bisphenol-A and Atrazine, all found in surface waters, feed and food. The prevention and curative effects of plant extracts were also measured on mitochondrial succinate dehydrogenase activity, on the entry of radiolabelled glyphosate (in Roundup) in cells, and on cytochromes P450 1A2 and 3A4 as well as glutathione-S-transferase. Results Clear toxicities of pollutants were observed on both cell lines at very low sub-agricultural dilutions. The prevention of such phenomena took place within 48 h with the plant extracts tested, with success rates ranging between 25-34% for the E293 intoxicated by Roundup, and surprisingly up to 71% for the HepG2. By contrast, after intoxication, no plant extract was capable of restoring E293 viability within 48 h, however, two medicinal plant combinations did restore the Bisphenol-A/Atrazine intoxicated HepG2 up to 24-28%. The analysis of underlying mechanisms revealed that plant extracts were not capable of preventing radiolabelled glyphosate from entering cells; however Dig2 did restore the CYP1A2 activity disrupted by Roundup, and had only a mild preventive effect on the CYP3A4, and no effect on the glutathione S-transferase. Conclusions Environmental pollutants have intracellular effects that can be prevented, or cured in part, by precise medicinal plant extracts in two human cell lines. This appears to be mediated at least in part by the cytochromes P450 modulation. PMID:21251308

2011-01-01

229

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

230

Expression of snowdrop lectin in transgenic tobacco plants results in added protection against aphids  

Microsoft Academic Search

The range of sap-sucking insect pests to which GNA, (the mannose specific lectin from snowdrops (Galanthus nivalis) has been shown to be insecticidal in artificial diets has been extended to include the peach potato aphid (Myzus persicae). A gene construct for constitutive expression of GNA from the CaMV35S gene promoter has been introduced into tobacco plants. A transgenic tobacco line

V. A. Hilder; K. S. Powell; A. M. R. Gatehouse; J. A. Gatehouse; L. N. Gatehouse; Y. Shi; W. D. O. Hamilton; A. Merryweather; C. A. Newell; J. C. Timans; W. J. Peumans; E. van Damme; D. Boulter

1995-01-01

231

Protective effect of exogenously applied nitric oxide on aluminum-induced oxidative stress in soybean plants  

Microsoft Academic Search

Aluminum (Al) toxicity promotes oxidative damage in plants, while nitric oxide (NO) may exert a beneficial effect on Al toxicity\\u000a condition in soybean. Pretreatment with NO donor sodium nitroprusside (SNP) before soybean exposure to Al significantly reduced\\u000a Al accumulation and MDA induction in the root apex. Pretreatment with SNP also increased the relative root elongation, chlorophyll\\u000a content, and activity of

M. Z. Cai; S. N. Zhang; F. M. Wang; N. Wang; S. Y. Xu

2011-01-01

232

Defined plant extracts can protect human cells against combined xenobiotic effects  

Microsoft Academic Search

BACKGROUND: Pollutants representative of common environmental contaminants induce intracellular toxicity in human cells, which is generally amplified in combinations. We wanted to test the common pathways of intoxication and detoxification in human embryonic and liver cell lines. We used various pollutants such as Roundup residues, Bisphenol-A and Atrazine, and five precise medicinal plant extracts called Circ1, Dig1, Dig2, Sp1, and

Cline Gasnier; Claire Laurant; Ccile Decroix-Laporte; Robin Mesnage; Emilie Clair; Carine Travert; Gilles-Eric Sralini

2011-01-01

233

Alternative strawberry production using solarization, metham sodium and beneficial soil microbes as plant protection methods  

Microsoft Academic Search

High-impact chemical biocides are no longer used in crop production systems due to environmental concerns and sustainable\\u000a agricultural practices must involve the use of environmentally friendlier alternatives for controlling pests and diseases.\\u000a We compared the effect of two disinfestation treatments, solarization and metham sodium, combined with the arbuscular mycorrhizal\\u000a fungus Glomus intraradices, the saprophytic fungus Trichoderma aureoviride and the plant

A. Camprub; V. Estan; M. A. El Bakali; F. Garcia-Figueres; C. Calvet

2007-01-01

234

Future challenges for nuclear power plant development research, and for radiological protection sciences.  

PubMed

The promise of the future shines brightly for nuclear energy technology and production, yet also holds many challenges. Focus on new reactor designs is currently aiming at what is termed the fourth generation of reactors, which will come into operation after 2030. The 10 countries participating in the Generation-IV International Forum to develop the new generation of reactors have designated six reactor designs that will be studied. This paper will briefly discuss some of these challenges in new reactor designs in general. In addition to the challenges posed by new reactor designs, radiation protection is also faced with a series of challenges for the future. These are borne from experience with the implementation of the current system of radiological protection, from the evolution of radiation biological research, and from changes in society in the area of radiological risk assessment and management. This paper will address all of these emerging challenges, and point towards approaches to resolve them in the future. PMID:18049234

Lazo, Edward

2007-11-01

235

Protection of thylakoids against combined light and drought by a lumenal substance in the resurrection plant Haberlea rhodopensis  

PubMed Central

Background and Aims Haberlea rhodopensis is a perennial, herbaceous, saxicolous, poikilohydric flowering plant that is able to survive desiccation to air-dried state under irradiance below 30 mol m?2 s?1. However, desiccation at irradiance of 350 mol m?2 s?1 induced irreversible changes in the photosynthetic apparatus, and mature leaves did not recover after rehydration. The aim here was to establish the causes and mechanisms of irreversible damage of the photosynthetic apparatus due to dehydration at high irradiance, and to elucidate the mechanisms determining recovery. Methods Changes in chloroplast structure, CO2 assimilation, chlorophyll fluorescence parameters, fluorescence imaging and the polypeptide patterns during desiccation of Haberlea under medium (100 mol m?2 s?1; ML) irradiance were compared with those under low (30 mol m?2 s?1; LL) irradiance. Key Results Well-watered plants (control) at 100 mol m?2 s?1 were not damaged. Plants desiccated at LL or ML had similar rates of water loss. Dehydration at ML decreased the quantum efficiency of photosystem II photochemistry, and particularly the CO2 assimilation rate, more rapidly than at LL. Dehydration induced accumulation of stress proteins in leaves under both LL and ML. Photosynthetic activity and polypeptide composition were completely restored in LL plants after 1 week of rehydration, but changes persisted under ML conditions. Electron microscopy of structural changes in the chloroplast showed that the thylakoid lumen is filled with an electron-dense substance (dense luminal substance, DLS), while the thylakoid membranes are lightly stained. Upon dehydration and rehydration the DLS thinned and disappeared, the time course largely depending on the illumination: whereas DLS persisted during desiccation and started to disappear during late recovery under LL, it disappeared from the onset of dehydration and later was completely lost under ML. Conclusions Accumulation of DLS (possibly phenolics) in the thylakoid lumen is demonstrated and is proposed as a mechanism protecting the thylakoid membranes of H. rhodopensis during desiccation and recovery under LL. Disappearance of DLS during desiccation in ML could leave the thylakoid membranes without protection, allowing oxidative damage during dehydration and the initial rehydration, thus preventing recovery of photosynthesis. PMID:19914917

Georgieva, Katya; Sarvari, Eva; Keresztes, Aron

2010-01-01

236

Protective potentials of a plant extract (Lycopodium clavatum) on mice chronically fed hepato-carcinogens.  

PubMed

Chronic feeding of carcinogens p-dimethylamino azobenzene (initiator) and phenobarbital (promoter) for 90 and 120 days elevated activities of acid and alkaline phosphatases, levels of blood glucose and cortisol and decreased the activities of glutathione reductase, succinate dehydrogenase, and blood cholesterol and hemoglobin contents, and levels of serum estradiol and testosterone in mice. Levels of these biomarkers in both liver and spleen tissues were positively altered along with a significant reduction of tumor incidence in liver of carcinogen intoxicated mice treated with spore extract of Lycopodium clavatum. The results validate the use of this plant extract in complementary and alternative medicines against hepato-toxicity. PMID:19761046

Pathak, Surajit; Banerjee, Antara; Paul, Saili; Khuda-Bukhsh, Anisur Rahman

2009-07-01

237

1-Aminocyclopropane-1-carboxylic acid (ACC) deaminase-containing rhizobacteria protect Ocimum sanctum plants during waterlogging stress via reduced ethylene generation.  

PubMed

Ocimum sanctum grown as rain-fed crop, is known to be poorly adapted to waterlogged conditions. Many a times the crop suffers extreme damages because of anoxia and excessive ethylene generation due to waterlogging conditions present under heavy rain. The usefulness of 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase-containing plant growth promoting rhizobacteria was investigated under waterlogging stress. The comparison of herb yield and stress induced biochemical changes of waterlogged and non-waterlogged plants with and without ACC deaminase-containing microbiological treatments were monitored in this study. Ten plant growth promoting rhizobacteria strains containing ACC-deaminase were isolated and characterized. Four selected isolates Fd2 (Achromobacter xylosoxidans), Bac5 (Serratia ureilytica), Oci9 (Herbaspirillum seropedicae) and Oci13 (Ochrobactrum rhizosphaerae) had the potential to protect Ocimum plants from flood induced damage under waterlogged glass house conditions. Pot experiments were conducted to evaluate the potential of these ACC deaminase-containing selected strains for reducing the yield losses caused by waterlogging conditions. Bacterial treatments protected plants from waterlogging induced detrimental changes like stress ethylene production, reduced chlorophyll concentration, higher lipid peroxidation, proline concentration and reduced foliar nutrient uptake. Fd2 (A. xylosoxidans) induced maximum waterlogging tolerance as treated waterlogged plants recorded maximum growth and herb yield (46.5% higher than uninoculated waterlogged plants) with minimum stress ethylene levels (53% lower ACC concentration as compared to waterlogged plants without bacterial inoculation) whereas under normal non-waterlogged conditions O. rhizosphaerae was most effective in plant growth promotion. PMID:22846334

Barnawal, Deepti; Bharti, Nidhi; Maji, Deepamala; Chanotiya, Chandan Singh; Kalra, Alok

2012-09-01

238

Occupational dose reduction at nuclear power plants: Annotated bibliography of selected readings in radiation protection and ALARA. Volume 7  

SciTech Connect

The ALARA Center at Brookhaven National Laboratory publishes a series of bibliographies of selected readings in radiation protection and ALARA in the continuing effort to collect and disseminate information on radiation dose reduction at nuclear power plants. This is volume 7 of the series. The abstracts in this bibliography were selected from proceedings of technical meetings and conferences, journals, research reports, and searches of the Energy Science and Technology database of the US Department of Energy. The subject material of these abstracts relates to radiation protection and dose reduction, and ranges from use of robotics to operational health physics, to water chemistry. Material on the design, planning, and management of nuclear power stations is included, as well as information on decommissioning and safe storage efforts. Volume 7 contains 293 abstract, an author index, and a subject index. The author index is specific for this volume. The subject index is cumulative and lists all abstract numbers from volumes 1 to 7. The numbers in boldface indicate the abstracts in this volume; the numbers not in boldface represent abstracts in previous volumes.

Kaurin, D.G.; Khan, T.A.; Sullivan, S.G.; Baum, J.W. [Brookhaven National Lab., Upton, NY (United States)

1993-07-01

239

Delayed treatment of Ebola virus infection with plant-derived monoclonal antibodies provides protection in rhesus macaques.  

PubMed

Filovirus infections can cause a severe and often fatal disease in humans and nonhuman primates, including great apes. Here, three anti-Ebola virus mouse/human chimeric mAbs (c13C6, h-13F6, and c6D8) were produced in Chinese hamster ovary and in whole plant (Nicotiana benthamiana) cells. In pilot experiments testing a mixture of the three mAbs (MB-003), we found that MB-003 produced in both manufacturing systems protected rhesus macaques from lethal challenge when administered 1 h postinfection. In a pivotal follow-up experiment, we found significant protection (P < 0.05) when MB-003 treatment began 24 or 48 h postinfection (four of six survived vs. zero of two controls). In all experiments, surviving animals that received MB-003 experienced little to no viremia and had few, if any, of the clinical symptoms observed in the controls. The results represent successful postexposure in vivo efficacy by a mAb mixture and suggest that this immunoprotectant should be further pursued as a postexposure and potential therapeutic for Ebola virus exposure. PMID:23071322

Olinger, Gene Garrard; Pettitt, James; Kim, Do; Working, Cara; Bohorov, Ognian; Bratcher, Barry; Hiatt, Ernie; Hume, Steven D; Johnson, Ashley K; Morton, Josh; Pauly, Michael; Whaley, Kevin J; Lear, Calli M; Biggins, Julia E; Scully, Corinne; Hensley, Lisa; Zeitlin, Larry

2012-10-30

240

Delayed treatment of Ebola virus infection with plant-derived monoclonal antibodies provides protection in rhesus macaques  

PubMed Central

Filovirus infections can cause a severe and often fatal disease in humans and nonhuman primates, including great apes. Here, three anti-Ebola virus mouse/human chimeric mAbs (c13C6, h-13F6, and c6D8) were produced in Chinese hamster ovary and in whole plant (Nicotiana benthamiana) cells. In pilot experiments testing a mixture of the three mAbs (MB-003), we found that MB-003 produced in both manufacturing systems protected rhesus macaques from lethal challenge when administered 1 h postinfection. In a pivotal follow-up experiment, we found significant protection (P < 0.05) when MB-003 treatment began 24 or 48 h postinfection (four of six survived vs. zero of two controls). In all experiments, surviving animals that received MB-003 experienced little to no viremia and had few, if any, of the clinical symptoms observed in the controls. The results represent successful postexposure in vivo efficacy by a mAb mixture and suggest that this immunoprotectant should be further pursued as a postexposure and potential therapeutic for Ebola virus exposure. PMID:23071322

Olinger, Gene Garrard; Pettitt, James; Kim, Do; Working, Cara; Bohorov, Ognian; Bratcher, Barry; Hiatt, Ernie; Hume, Steven D.; Johnson, Ashley K.; Morton, Josh; Pauly, Michael; Whaley, Kevin J.; Lear, Calli M.; Biggins, Julia E.; Scully, Corinne; Hensley, Lisa; Zeitlin, Larry

2012-01-01

241

Protective Effect of Selected Medicinal Plants against Hydrogen Peroxide Induced Oxidative Damage on Biological Substrates  

PubMed Central

Oxidative stress is developed due to susceptibility of biological substrates to oxidation by generation of free radicals. In degenerative diseases, oxidative stress level can be reduced by antioxidants which neutralize free radicals. Primary objective of this work was to screen four medicinal plants, namely, Andrographis paniculata, Costus speciosus, Canthium parviflorum, and Abrus precatorius, for their antioxidant property using two biological substratesRBC and microsomes. The antioxidative ability of three solvent extracts, methanol (100% and 80%) and aqueous leaf extracts, was studied at different concentrations by thiobarbituric acid reactive substances method using Fenton's reagent to induce oxidation in the substrates. The polyphenol and flavonoid content were analyzed to relate with the observed antioxidant effect of the extracts. The phytochemical screening indicated the presence of flavonoids, polyphenols, tannins, and ?-carotene in the samples. In microsomes, 80% methanol extract of Canthium and Costus and, in RBC, 80% methanol extract of Costus showed highest inhibition of oxidation and correlated well with the polyphenol and flavonoid content. From the results it can be concluded that antioxidants from medicinal plants are capable of inhibiting oxidation in biological systems, suggesting scope for their use as nutraceuticals.

Pai Kotebagilu, Namratha; Reddy Palvai, Vanitha

2014-01-01

242

Plants  

NSDL National Science Digital Library

Get ready to explore plants! Let's Learn About Plants! Question: What do plants need to live? Watch the video to find out! What does it need to grow? Question: What are the parts of a plant? Click to find out! Parts of a Plant Question: What is the life cycle of a plant? Watch the video to find out! Plant Life Cycle Video Question: ...

Berneski, Miss

2011-12-10

243

Maize purple plant pigment protects against fluoride-induced oxidative damage of liver and kidney in rats.  

PubMed

Anthocyanins are polyphenols and well known for their biological antioxidative benefits. Maize purple plant pigment (MPPP) extracted and separated from maize purple plant is rich in anthocyanins. In the present study, MPPP was used to alleviate the adverse effects generated by fluoride on liver and kidney in rats. The results showed that the ultrastructure of the liver and kidney in fluoride treated rats displayed shrinkage of nuclear and cell volume, swollen mitochondria and endoplasmic reticulum and vacuols formation in the liver and kidney cells. MPPP significantly attenuated these fluoride-induced pathological changes. The MDA levels in serum and liver tissue of fluoride alone treated group were significantly higher than those of the control group (p < 0.05). The presence of 5 g/kg MPPP in the diet reduced the elevation of MDA levels in blood and liver, and increased the SOD and GSH-Px activities in kidney and GSH level in liver and kidney compared with the fluoride alone treated group (p < 0.05). In addition, MPPP alleviated the decrease of Bcl-2 protein expression and the increase of Bax protein expression induced by fluoride. This study demonstrated the protective role of MPPP against fluoride-induced oxidative stress in liver and kidney of rats. PMID:24419046

Zhang, Zhuo; Zhou, Bo; Wang, Hiaohong; Wang, Fei; Song, Yingli; Liu, Shengnan; Xi, Shuhua

2014-01-01

244

Insect repellent activity of medicinal plant oils against Aedes aegypti (Linn.), Anopheles minimus (Theobald) and Culex quinquefasciatus Say based on protection time and biting rate.  

PubMed

This study investigated insect bite protection and length of the protection with 30 repellents which were divided into 3 categories: plant oil, essential oil and essential oil with ethyl alcohol, tested against three mosquito species, Aedes aegypti, Anopheles minimus and Culex quinquefasciatus, under laboratory conditions. The plant oil group was comprised of Phlai (Zingiber cassumunar) and Sweet basil (Ocimum basilicum). Both substances were effective as repellents and feeding deterrents against An. minimus (205 minutes protection time and a biting rate of 0.9%), Cx. quinquefasciatus (165 minutes protection time and 0.9% biting rate) and Ae. aegypti (90 minutes protection time and 0.8% biting rate). Essential oil from citronella grass (Cymbopogon nardus) exhibited protection against biting from all 3 mosquito species: for An. minimus, Cx. quinquefasciatus and Ae. aegypti, the results were 130 minutes and 0.9%, 140 minutes and 0.8%, and 115 minutes and 0.8%, respectively. The period of protection time against Ae. aegypti for all repellent candidates tested was lower than the Thai Industrial Standards Institute (TISI) determined time of greater than 2 hours. PMID:21073057

Phasomkusolsil, Siriporn; Soonwera, Mayura

2010-07-01

245

Can sacrificial feeding areas protect aquatic plants from herbivore grazing? Using behavioural ecology to inform wildlife management.  

PubMed

Effective wildlife management is needed for conservation, economic and human well-being objectives. However, traditional population control methods are frequently ineffective, unpopular with stakeholders, may affect non-target species, and can be both expensive and impractical to implement. New methods which address these issues and offer effective wildlife management are required. We used an individual-based model to predict the efficacy of a sacrificial feeding area in preventing grazing damage by mute swans (Cygnus olor) to adjacent river vegetation of high conservation and economic value. The accuracy of model predictions was assessed by a comparison with observed field data, whilst prediction robustness was evaluated using a sensitivity analysis. We used repeated simulations to evaluate how the efficacy of the sacrificial feeding area was regulated by (i) food quantity, (ii) food quality, and (iii) the functional response of the forager. Our model gave accurate predictions of aquatic plant biomass, carrying capacity, swan mortality, swan foraging effort, and river use. Our model predicted that increased sacrificial feeding area food quantity and quality would prevent the depletion of aquatic plant biomass by swans. When the functional response for vegetation in the sacrificial feeding area was increased, the food quantity and quality in the sacrificial feeding area required to protect adjacent aquatic plants were reduced. Our study demonstrates how the insights of behavioural ecology can be used to inform wildlife management. The principles that underpin our model predictions are likely to be valid across a range of different resource-consumer interactions, emphasising the generality of our approach to the evaluation of strategies for resolving wildlife management problems. PMID:25077615

Wood, Kevin A; Stillman, Richard A; Daunt, Francis; O'Hare, Matthew T

2014-01-01

246

Optical properties and contribution of cuticle to UV protection in plants: experiments with apple fruit.  

PubMed

To assess the UV-screening capacity of plant surface structures, the optical properties of isolated cuticle and detached peel of apple fruit (Malus domestica Borkh., cv. Antonovka) have been studied. It was found that the cuticle exhibits considerable scattering of UV radiation, negligible absorption between 500-800 nm and attenuates UV radiation: on average, cuticular transmittance of non-reflected light amounts to 35.7 +/- 20.2 and 14.2 +/- 7.1% at 375 and 300 nm, respectively. The principal UV-A absorbers in the cuticle were identified as quercetin glycosides with an in vivo absorption maximum near 375 nm and content ranging from 10 to 70 nmol cm(-2). On the shaded side of apple fruit, both UV-A and UV-B absorption by the peel is, to a large extent, governed by cuticular phenolics, whereas on the sunlit surface, the absorption of the peel in the UV-A range is determined mainly by vacuolar peel flavonoids. It is concluded that a massive build-up of flavonoids in the peel cells located just below the cuticle, resulting in trapping of radiation in a broad spectral range, plays a dominant role in the long-term adaptation of apple fruit to elevated levels of solar radiation. PMID:14521223

Solovchenko, Alexei; Merzlyak, Mark

2003-08-01

247

The protective ability of the Mediterranean plant extracts against the oxidative DNA damage. The role of the radical oxygen species and the polyphenol content.  

PubMed

The polyphenol plant extracts content seems to be responsible for the scavenging activity of the reactive oxygen species (ROS), resulting in protection against DNA damage induced by the oxidative stress. This assumption was verified analyzing the effect of six Mediterranean plant extracts (Crepis vesicaria L, Origanum heracleoticum, Scandix australis L, Amaranthus sp., Scolymus hispanicus L, Thymus piperella L) on the oxidative DNA damage induced in lymphocytes by H(2)O(2) in relation to the polyphenolic content and the lymphocyte scavenging ability of ROS. The comet assay was used to evaluate oxidative DNA damage and the polyphenol content was analyzed by the Folin-Ciocalteu method. The fluorescence resulting from oxidation of ROS-sensitive dye, dihydrorofluorescein (DHF), was utilized as indicator of the ROS level. Pretreatment with all plant extracts produced the dose-dependent increase in the DNA protection up to the 0.2 microg/ml polyphenol content and the decrease above that dose. Only the Thymus piperella, similarly to quercetin, showed a strong positive correlation between the DNA protection and the polyphenol content, but negative correlation with ROS formation. In conclusion, the DNA protective ability of plant extracts seems to be related to the low polyphenol concentration and only to certain extent depends on the polyphenol ROS scavenging activity. PMID:15800394

Kapiszewska, M; So?tys, E; Visioli, F; Cierniak, A; Zajac, G

2005-03-01

248

The mitochondrial small heat-shock protein protects NADH:ubiquinone oxidoreductase of the electron transport chain during heat stress in plants  

E-print Network

of complex I electron transport in pre-heat-stressed plants. Addition of purified lmw Hsp to submitochondrial roughly 70% amino acid ho- mology among all known members of mitochondrial lmw Hsp [19] and strongly and protection of electron transport from the succinate:ubiquinone oxidoreductase com- plex (complex II

Heckathorn, Scott

249

FEMININ, MASCULIN : ANTHROPOLOGIE DES  

E-print Network

#12;#12;FEMININ, MASCULIN : ANTHROPOLOGIE DES CAT?GORIES ET DES PRATIQUES MEDICALES 2007 #12;AUX;FEMININ, MASCULIN. ANTHROPOLOGIE DES CAT?GORIES ET DES PRATIQUES MEDICALES Sous la direction de Virginie, en France, du paradoxe d'une surmortalité masculine et d'une surmor- bidité féminine. Cette apparente

Boyer, Edmond

250

Plants  

NSDL National Science Digital Library

Use these links to find out more about plants. This site will help you determine what a plant needs to grow. Michigan's 4-H Children's Garden This site will send you through an adventure where you try to discover if you can grow plants on the moon. Adventures of the agronauts These 2 sites are teacher resource sites on plants. Light Plants and Dark Plants, Wet Plants and Dry Ones The New York Times Daily Lesson Plan: Growing Pains ...

Quinn, Miss

2005-05-02

251

Leaf volatile compounds and the distribution of ant patrollingin an ant-plant protection mutualism: Preliminary results on Leonardoxa (Fabaceae: Caesalpinioideae) and Petalomyrmex(Formicidae: Formicinae)  

NASA Astrophysics Data System (ADS)

While observations suggest that plant chemicals could be important in maintaining the specificity and permitting the functioning of ant-plant symbioses, they have been little studied. We report here the strongest evidence yet for chemical signalling between ants and plants in a specific ant-plant protection symbiosis. In the mutualism between Leonardoxa africana subsp. africana and Petalomyrmex phylax, ants continuously patrol young leaves, which are vulnerable to attacks by phytophagous insects. We provide experimental evidence for chemical mediation of ant attraction to young leaves in this system. By a comparative analysis of the related non-myrmecophytic tree L. africana subsp. gracilicaulis, we identify likely candidates for attractant molecules, and suggest they may function not only as signals but also as resources. We also propose hypotheses on the evolutionary origin of these plant volatiles, and of the responses to them by mutualistic ants.

Brouat, Carine; McKey, Doyle; Bessire, Jean-Marie; Pascal, Laurence; Hossaert-McKey, Martine

2000-12-01

252

plantes ornementales plantes consommes la table du roi  

E-print Network

plantes ornementales plantes consommées à la table du roi plantes consommées par le peuple plantes aromatiques plantes à usage autre qu'alimentaire Le XVIIe siècle L'homme et les plantes au XVIIe siècle Un nouvelles techniques (microscopie...). Développement des échanges Les introductions de nouvelles plantes en

Jeanjean, Louis

253

The Ural Electrochemical Integrated Plant Process for Managing Equipment Intended for Nuclear Material Protection, Control and Accounting System Upgrades  

SciTech Connect

Since 1996, the Ural Electrochemical Integrated Plant (UEIP) located in the town of Novouralsk, Russia, (previously known as Sverdlovsk-44) and the United States Department of Energy (U.S. DOE) have been cooperating under the Nuclear Material Protection, Control and Accounting (MPC&A) Program. Because UEIP is involved in the processing of highly enriched uranium (HEU) into low enriched uranium (LEU), and there are highly enriched nuclear materials on its territory, the main goal of the MPC&A cooperation is to upgrade those systems that ensure secure storage, processing and transportation of nuclear materials at the plant. UEIP has completed key upgrades (equipment procurement and installation) aimed at improving MPC&A systems through significant investments made by both the U.S. DOE and UEIP. These joint cooperative efforts resulted in bringing MPC&A systems into compliance with current regulations, which led to nuclear material (NM) theft risk reduction and prevention from other unlawful actions with respect to them. Upon the U.S. MPC&A project teams suggestion, UEIP has developed an equipment inventory control process to track all the property provided through the MPC&A Program. The UEIP process and system for managing equipment provides many benefits including: greater ease and efficiency in determining the quantities, location, maintenance and repair schedule for equipment; greater assurance that MPC&A equipment is in continued satisfactory operation; and improved control in the development of a site sustainability program. While emphasizing UEIPs equipment inventory control processes, this paper will present process requirements and a methodology that may have practical and helpful applications at other sites.

Yuldashev, Rashid; Nosov, Andrei; Carroll, Michael F.; Garrett, Albert G.; Dabbs, Richard D.; Ku, Esther M.

2008-10-01

254

Plants  

NSDL National Science Digital Library

What is the cycle plants go through? First use Write out the Plant Cycle Watch the Plant Powerpoint write down what you learned. Next watch the movie Plant Cycle Movie What did you think was interesting? Next, search around on the website and write down facts about plants. LIfe Cycle of Plants Next, play around with the part of the plants http://www.sciencekids.co.nz/gamesactivities/lifecycles.htmlFinally learn all about growing a plant. Growing a plant After you are finished come see me ...

Barron, Anne

2011-04-14

255

Les voyages des plantes cultives  

E-print Network

Exciting Course Offerings! Cultivating the Power of Emotional Intelligence, p. 18 NEW! Professional Negativity: Creating Optimism in the Workplace Cultivating the Power of Emotional Intelligence The Downside

Boyer, Edmond

256

Les voyages des plantes cultives  

E-print Network

Original article Cultivation of shiitake mushroom, Lentinula edodes, in several lignocellulosic / shiitake / mushroom cultivation / alternative substrates / Mexico Résumé. La culture du shiitake, Lentinula- room among the species industrially cultivated, with about17 % of total production, and showing

Paris-Sud XI, Université de

257

Les voyages des plantes cultives  

E-print Network

Original article Effects of soil, climate and cultivation techniques on cotton yield in Central is particularly important in the Thessaly plain where it covers 54% of the total cultivated area. The cotton crop

Paris-Sud XI, Université de

258

Improving explosion protection methods for industrial processes : the collaborative project DELFINE  

E-print Network

Improving explosion protection methods for industrial processes : the collaborative project DELFINE (Evolution des méthodes de protection des procédés industriels contre les effets des explosions : le projet in industrial enclosures, which may alter drastically the explosion violence. The DELFINE installation presently

Boyer, Edmond

259

Joint effects of three plant protection products to the terrestrial isopod Porcellionides pruinosus and the collembolan Folsomia candida.  

PubMed

The effects of simultaneous application of plant protection products are of concern since the uses of different products pose an additional risk to non-target soil organisms. The effects of binary combinations of dimethoate, glyphosate and spirodiclofen, an insecticide an herbicide and an acaricide, on the avoidance behaviour of the terrestrial isopod Porcellionides pruinosus and the reproductive effort of Folsomia candida were assessed using the two reference models of concentration addition (CA) and independent action (IA). Results of single exposure to the three pesticides indicated a clear dose related avoidance response of the isopods in the highest concentrations tested of the three as well as a strong decrease in collembolan adult survival and concomitant number of juveniles produced. In the combined experiments, antagonism was found in 7 out of the 12 combinations, four combinations followed the reference models, and only in one combination synergism was detected (lower doses of glyphosate and spirodiclofen applied to P. pruinosus). In conclusion, it seems that mixing and applying these products, at the recommended field application rate, does not lead to enhanced toxicity, hence limited risk is associated with the joint application of these pesticides. PMID:20579688

Santos, Miguel J G; Soares, Amadeu M V M; Loureiro, Susana

2010-08-01

260

Application of the threshold approach for acute fish toxicity testing to plant protection products: a proposed framework.  

PubMed

In order to minimise animal testing, this paper explores the feasibility of the "threshold approach" that has been recently developed by the Organisation for Economic Cooperation and Development (OECD). Essentially the approach uses a limit test at a single threshold concentration determined by the results of Daphnia and algae tests. If no mortality is observed in the limit test the fish acute value can be expressed as greater than the threshold value. However, if mortality is observed a full concentration-response test is triggered. In order to assess the applicability of the approach to plant protection products (PPP), a database of 185 products (fish, Daphnia and algae endpoints) was constructed and the threshold approach retrospectively applied. However, this analysis did not take into account the use of the data in the regulatory process. To assess whether the "threshold approach" could be used for PPPs the UK National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs) held a workshop in December 2010. This meeting brought together representatives from a number of European regulators and researchers as well as industry to discuss the applicability of the approach. The outcome of this discussion is presented in the paper. PMID:24183622

Creton, Stuart; Clook, Mark; Wheeler, James R

2014-02-01

261

Projected range contractions of European protected oceanic montane plant communities: focus on climate change impacts is essential for their future conservation.  

PubMed

Global climate is rapidly changing and while many studies have investigated the potential impacts of this on the distribution of montane plant species and communities, few have focused on those with oceanic montane affinities. In Europe, highly sensitive bryophyte species reach their optimum occurrence, highest diversity and abundance in the north-west hyperoceanic regions, while a number of montane vascular plant species occur here at the edge of their range. This study evaluates the potential impact of climate change on the distribution of these species and assesses the implications for EU Habitats Directive-protected oceanic montane plant communities. We applied an ensemble of species distribution modelling techniques, using atlas data of 30 vascular plant and bryophyte species, to calculate range changes under projected future climate change. The future effectiveness of the protected area network to conserve these species was evaluated using gap analysis. We found that the majority of these montane species are projected to lose suitable climate space, primarily at lower altitudes, or that areas of suitable climate will principally shift northwards. In particular, rare oceanic montane bryophytes have poor dispersal capacity and are likely to be especially vulnerable to contractions in their current climate space. Significantly different projected range change responses were found between 1) oceanic montane bryophytes and vascular plants; 2) species belonging to different montane plant communities; 3) species categorised according to different biomes and eastern limit classifications. The inclusion of topographical variables in addition to climate, significantly improved the statistical and spatial performance of models. The current protected area network is projected to become less effective, especially for specialised arctic-montane species, posing a challenge to conserving oceanic montane plant communities. Conservation management plans need significantly greater focus on potential climate change impacts, including models with higher-resolution species distribution and environmental data, to aid these communities' long-term survival. PMID:24752011

Hodd, Rory L; Bourke, David; Skeffington, Micheline Sheehy

2014-01-01

262

Baies des rgions arctiques, dAmrique du Nord et dEurasie septentrionale  

Microsoft Academic Search

\\u000a R?sum?Dans cet article, lauteur veut int?resser les acteurs de la phytoth?rapie ? des plantes dont on ne parle que rarement et\\u000a qui portent des fruits ou des baies qui ont eu une importance ?conomique pour les populations des zones o? elles poussent\\u000a Ces baies, qui perdurent dans des contr?es au climat difficile mais biologiquement assez prot?g?es, ont des propri?t?s qui

P. Goetz

2006-01-01

263

Some lessons on radiological protection learnt from the accident at the Fukushima Dai-ichi nuclear power plant.  

PubMed

The accident at the Fukushima Dai-ichi nuclear power plant released a large quantity of radioactive iodine and caesium into the environment. In terms of radiological protection, the evacuation and food restrictions that were adopted in a timely manner by the authorities effectively reduced the dose received by people living in the affected area. Since late March, the transition from an emergency to an existing exposure situation has been in progress. In selecting the reference exposure levels in some areas under an existing exposure situation, the authorities tried to follow the situation-based approach recommended by the ICRP. However, a mixture of emergency and post-emergency approaches confused the people living in the contaminated areas because the reactor conditions continued to be not completely stable. In deriving the criteria in an existing exposure situation, the regulatory authority selected 20 mSv y(-1). The mothers in the affected area believed that a dose of 20 mSv y(-1) was unacceptably high for children since 1 mSv y(-1) is the dose limit for the public under normal conditions. Internet information accelerated concern about the internal exposure to children and the related health effects. From some experiences after the accident the following lessons could be learned. The selection of reference doses in existing exposure situations after an accident must be openly communicated with the public using a risk-informed approach. The detriment-adjusted nominal risk coefficient was misused for calculating the hypothetical number of cancer deaths by some non-radiation experts. It would not be possible to resolve this problem unless the ICRP addressed an alternative risk assessment to convey the meaning and associated uncertainty of the risk to an exposed population. A situation-based approach in addition to a risk-informed approach needs to be disseminated properly in order to select the level of protection that would be the best possible under the prevailing circumstances. A dialogue between radiation and other risk experts such as those dealing with chemical exposures is now needed. PMID:22394670

Kai, M

2012-03-01

264

Groundwater Protection Program Calendar Year 1998 Groundwater Monitoring Report, U.S. Department of Energy Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

This annual monitoring report contains groundwater and surface water monitoring data obtained during calendar year (CY) 1998 by the Lockheed Martin Energy Systems, Inc. Y-12 Plant Groundwater Protection Program (GWPP) at the U.S. Department of Energy (DOE) Oak Ridge Y-12 Plant, Groundwater and surface water monitoring during CY 1998 was performed in three hydrogeologic regimes at the Y-12 Plant: the Bear Creek Hydrogeologic Regime (Bear Creek Regime), the Chestnut Ridge Hydrogeologic Regime (Chestnut Ridge Regime), and the Upper East Fork Poplar Creek Hydrogeologic Regime (East Fork Regime). The Bear Creek and East Fork regimes are located in Bear Creek Valley (BCV), and the Chestnut Ridge Regime which is located south of the Y-12 Plant.

NONE

1999-03-01

265

Entomovectoring in plant protection  

Microsoft Academic Search

This paper gives an overview on the unique concept of the entomovector technology to employ pollinating insects, including\\u000a honey bees and bumble bees in the context of biological control of insect pests and diseases. After a brief introductory description,\\u000a the multifaceted aspects of this intriguing technology are highlighted by describing the most significant results and achievements\\u000a of research groups around

Veerle Mommaerts; Guy Smagghe

2011-01-01

266

Effects of Interactions of Arbuscular Mycorrhizal Fungi and Beneficial Saprophytic Mycoflora on Plant Growth and Disease Protection  

Microsoft Academic Search

Arbuscular mycorrhizal (AM) fungi and beneficial saprophytic mycoflora like plant growth promoting fungi (PGPF) are capable\\u000a of promoting plant growth and may suppress several plant diseases. The interaction of these microorganisms in the plant rhizosphere\\u000a may affect plant growth and microbial community composition. Mixtures of these microorganisms generally increase the genetic\\u000a diversity in the rhizosphere microorganisms that may persist longer

M. G. B. Saldajeno; W. A. Chandanie; M. Kubota; M. Hyakumachi

267

PHARMA -Rglement des examens et des jurys 2013-2014 Rglement des examens -Pharma 2013  

E-print Network

PHARMA - Règlement des examens et des jurys 2013-2014 Règlement des examens - Pharma 2013 1 missions décrites dans ce règlement. #12;PHARMA - Règlement des examens et des jurys 2013-2014 Règlement des examens - Pharma 2013 2 UNIVERSITE LIBRE DE BRUXELLES DEPARTEMENT ENSEIGNEMENT SERVICE D

Cerf, Nicolas

268

Thirty-three Years of Regulating Fire Protection at Commercial U.S. Nuclear Power Plants: Dousing the Flames of Controversy  

Microsoft Academic Search

This article focuses on what have been, and may continue to be, the more controversial aspects of fires at commercial nuclear\\u000a power plants regulated by the U.S. Nuclear Regulatory Commission. Examining what has transpired in fire protection regulation\\u000a since the 1975 fire at Browns Ferry Unit 1, which first focused attention on the potential hazard of fire at commercial nuclear

Raymond H. V. Gallucci

2009-01-01

269

Odor Load Investigation for a Pharmaceutical Plant by Open Path Fourier Transform Infrared (OP-FTIR)\\/Environmental Protection Agency Regulatory Dispersion Model (AERMOD)  

Microsoft Academic Search

In this article, a case study was conducted to correlate the odor index and possible pollutants from a pharmaceutical plant based on the odor threshold and Open Path Fourier Transform Infrared (OP-FTIR) technique to model the results using American Meteorological Society\\/Environmental Protection Agency Regulatory Dispersion Model (AERMOD). Although nine different pollutants were obtained from OP-FTIR, the contribution to the detected

Wen-Shing Chang; Shiao-Shing Chen; Jung-Hua Chang; Chih-Hui Tang; Tzi-Chin Chang

2009-01-01

270

Die Entwicklung des Universums  

E-print Network

/= =AbstandzwischenzweientferntenGalaxien Evolution des Universums (Einstein) Alter des Universums ~ 15 Milliarden Jahre Urknall Beobachtungen+ = Hintergrundstrahlung Rotverschiebung Alter ~ Jahre Chemie : 75% H, 25% He 10 1015 #12;T.Hebbeker Evolution des Universums (a la Einstein) == krit m 3 /3 mAtomeH - · Hubble-Konstante (kinetische Energie

Hebbeker, Thomas

271

A novel antimicrobial protein for plant protection consisting of a Xanthomonas oryzae harpin and active domains of cecropin A and melittin  

PubMed Central

Summary Discoveries about antimicrobial peptides and plant defence activators have made possible the de novo and rational design of novel peptides for use in crop protection. Here we report a novel chimeric protein, Hcm1, which was made by linking the active domains of cecropin A and melittin to the hypersensitive response (HR)?elicitor Hpa1 of Xanthomonas oryzae pv. oryzicola, the causal agent of rice bacterial leaf streak. The resulting chimeric protein maintained not only the HR?inducing property of the harpin, but also the antimicrobial activity of the cecropin A?melittin hybrid. Hcm1 was purified from engineered Escherichia coli and evaluated in terms of the minimal inhibitory concentration (MIC) and the 50% effective dose (ED50) against important plant pathogenic bacteria and fungi. Importantly, the protein acted as a potential pesticide by inducing disease resistance for viral, bacterial and fungal pathogens. This designed drug can be considered as a lead compound for use in plant protection, either for the development of new broad?spectrum pesticides or for expression in transgenic plants. PMID:21895994

Che, Yi-Zhou; Li, Yu-Rong; Zou, Hua-Song; Zou, Li-Fang; Zhang, Bing; Chen, Gong-You

2011-01-01

272

Role of ethylene in the protection of tomato plants against soil-borne fungal pathogens conferred by an endophytic Fusarium solani strain.  

PubMed

An endophytic fungal isolate (Fs-K), identified as a Fusarium solani strain, was obtained from root tissues of tomato plants grown on a compost which suppressed soil and foliar pathogens. Strain Fs-K was able to colonize root tissues and subsequently protect plants against the root pathogen Fusarium oxysporum f.sp. radicis-lycopersici (FORL), and elicit induced systemic resistance against the tomato foliar pathogen Septoria lycopersici. Interestingly, attenuated expression of certain pathogenesis-related genes, i.e. PR5 and PR7, was detected in tomato roots inoculated with strain Fs-K compared with non-inoculated plants. The expression pattern of PR genes was either not affected or aberrant in leaves. A genetic approach, using mutant tomato plant lines, was used to determine the role of ethylene and jasmonic acid in the plant's response to infection by the soil-borne pathogen F. oxysporum f.sp. radicis-lycopersici (FORL), in the presence or absence of isolate Fs-K. Mutant tomato lines Never ripe (Nr) and epinastic (epi1), both impaired in ethylene-mediated plant responses, inoculated with FORL are not protected by isolate Fs-K, indicating that the ethylene signalling pathway is required for the mode of action used by the endophyte to confer resistance. On the contrary, def1 mutants, affected in jasmonate biosynthesis, show reduced susceptibility to FORL, in the presence Fs-K, which suggests that jasmonic acid is not essential for the mediation of biocontrol activity of isolate Fs-K. PMID:18048373

Kavroulakis, Nektarios; Ntougias, Spyridon; Zervakis, Georgios I; Ehaliotis, Constantinos; Haralampidis, Kosmas; Papadopoulou, Kalliope K

2007-01-01

273

Effect of foliar salicylic acid and methyl jasmonate applications on protection against pill-bugs in lettuce plants ( Lactuca sativa )  

Microsoft Academic Search

The effects were examined of plant-response signaling compounds, salicylic acid (SA) and methyl jasmonate (MeJA), on resistance\\u000a to pill-bugs (Armadillidium vulgare) attack in lettuce plants. Foliar SA and MeJA applications were made at weekly intervals from the emergence of the plant until\\u000a one week before harvesting. SA and MeJA induced detectable levels of hydrogen peroxide (H2O2) at least during 5days

Nancy Tierranegra-Garca; Patricia Salinas-Soto; Irineo Torres-Pacheco; Rosalia V. Ocampo-Velzquez; Enrique Rico-Garca; Sandra O. Mendoza-Diaz; Ana A. Feregrino-Prez; Adn Mercado-Luna; Marcela Vargas-Hernandez; Genaro M. Soto-Zaraza; Ramn G. Guevara-Gonzlez

2011-01-01

274

ECOLE CENTRALE DES ARTS ET MANUFACTURES  

E-print Network

´ECOLE CENTRALE DES ARTS ET MANUFACTURES ´ECOLE CENTRALE PARIS COLLEGE OF RESOURCES´ematiques Appliqu´ees aux Syst`emes (MAS) Laboratory: Key Laboratory of Plant-Soil Interactions, College of Re Production in Winter Oilseed rape (Brassica napus L.) Date of defence : 08/06/2011 Jury: M. Baogui ZHANG

Paris-Sud XI, Université de

275

Insertion of cyanobacterial desA gene coding for ?12-acyl-lipid desaturase increases potato plant resistance to oxidative stress induced by hypothermia  

Microsoft Academic Search

The role of ?12-acyl-lipid desaturase in plant resistance to hypothermia-induced oxidative stress was investigated. This study\\u000a focused on modulation of free-radical processes occurring at low temperature in leaf cells of potato plants (Solanum tuberosum L., cv. Desnitsa) transformed with the gene for ?12-acyl-lipid desaturase from the cyanobacterium Synechocystis sp. PCC 6803. Nontransformed plants of the same cultivar were used as

I. N. Demin; A. N. Deryabin; M. S. Sinkevich; T. I. Trunova

2008-01-01

276

Scaling the Plant Cell Wall  

NSF Publications Database

... Plant Cell Wall New method brings greater understanding of how plants build cell walls Cell walls ... have studied plant cell walls?the protective sheaths that give plant cells shape and protect them ...

277

Importance of local knowledge in plant resources management and conservation in two protected areas from Tr?s-os-Montes, Portugal  

PubMed Central

Many European protected areas were legally created to preserve and maintain biological diversity, unique natural features and associated cultural heritage. Built over centuries as a result of geographical and historical factors interacting with human activity, these territories are reservoirs of resources, practices and knowledge that have been the essential basis of their creation. Under social and economical transformations several components of such areas tend to be affected and their protection status endangered. Carrying out ethnobotanical surveys and extensive field work using anthropological methodologies, particularly with key-informants, we report changes observed and perceived in two natural parks in Trs-os-Montes, Portugal, that affect local plant-use systems and consequently local knowledge. By means of informants' testimonies and of our own observation and experience we discuss the importance of local knowledge and of local communities' participation to protected areas design, management and maintenance. We confirm that local knowledge provides new insights and opportunities for sustainable and multipurpose use of resources and offers contemporary strategies for preserving cultural and ecological diversity, which are the main purposes and challenges of protected areas. To be successful it is absolutely necessary to make people active participants, not simply integrate and validate their knowledge and expertise. Local knowledge is also an interesting tool for educational and promotional programs. PMID:22112242

2011-01-01

278

Characterization of the fungal gibberellin desaturase as a 2-oxoglutarate-dependent dioxygenase and its utilization for enhancing plant growth.  

PubMed

The biosynthesis of gibberellic acid (GA(3)) by the fungus Fusarium fujikuroi is catalyzed by seven enzymes encoded in a gene cluster. While four of these enzymes are characterized as cytochrome P450 monooxygenases, the nature of a fifth oxidase, GA(4) desaturase (DES), is unknown. DES converts GA(4) to GA(7) by the formation of a carbon-1,2 double bond in the penultimate step of the pathway. Here, we show by expression of the des complementary DNA in Escherichia coli that DES has the characteristics of a 2-oxoglutarate-dependent dioxygenase. Although it has low amino acid sequence homology with known 2-oxoglutarate-dependent dioxygenases, putative iron- and 2-oxoglutarate-binding residues, typical of such enzymes, are apparent in its primary sequence. A survey of sequence databases revealed that homologs of DES are widespread in the ascomycetes, although in most cases the homologs must participate in non-gibberellin (GA) pathways. Expression of des from the cauliflower mosaic virus 35S promoter in the plant species Solanum nigrum, Solanum dulcamara, and Nicotiana sylvestris resulted in substantial growth stimulation, with a 3-fold increase in height in S. dulcamara compared with controls. In S. nigrum, the height increase was accompanied by a 20-fold higher concentration of GA(3) in the growing shoots than in controls, although GA(1) content was reduced. Expression of des was also shown to partially restore growth in plants dwarfed by ectopic expression of a GA 2-oxidase (GA-deactivating) gene, consistent with GA(3) being protected from 2-oxidation. Thus, des has the potential to enable substantial growth increases, with practical implications, for example, in biomass production. PMID:22911627

Bhattacharya, Anjanabha; Kourmpetli, Sofia; Ward, Dennis A; Thomas, Stephen G; Gong, Fan; Powers, Stephen J; Carrera, Esther; Taylor, Benjamin; de Caceres Gonzalez, Francisco Nuez; Tudzynski, Bettina; Phillips, Andrew L; Davey, Michael R; Hedden, Peter

2012-10-01

279

Identification de facteurs de transcription rgulateurs de la voie de biosynthse des alcalodes indoliques monoterpniques chez Catharanthus roseus.  

E-print Network

??Catharanthus roseus est une plante tropicale qui produit spcifiquement des alcalodes indoliques monoterpniques (AIM) dintrt thrapeutique. Chez C. roseus, la branche terpnique incluant la voie (more)

Ginis, Olivia

2012-01-01

280

Plants  

NSDL National Science Digital Library

Children will learn a variety of themes that will teach children about spring and how to grow plants while incorporating core related material. Flowers, The children will learn about different qualities of flowers while learning shapes, counting, and colors. Flowers Gardens, The children will learn how to plant and take care of a garden. Gardens Rain, The children will learn that gardens need rain to grow. Students will also learn about evaporation. Rain Making Rain Story Time Flower Story ...

Srowley

2006-04-28

281

Onondaga County Department of Water Environment Protection: Process Optimization Saves Energy at Metropolitan Syracuse Wastewater Treatment Plant  

SciTech Connect

This DOE Industrial Technologies Program spotlight describes how Onondaga County, New York, is saving nearly 3 million kWh and 270 million Btu annually at a wastewater treatment plant after replacing inefficient motors and upgrading pumps.

Not Available

2005-12-01

282

Fe-Al Weld Overlay and High Velocity Oxy-Fuel Thermal Spray Coatings for Corrosion Protection of Waterwalls in Fossil Fired Plants with Low NOx Burners  

SciTech Connect

Iron-aluminum-chromium coatings were investigated to determine the best candidates for coatings of boiler tubes in Low NOx fossil fueled power plants. Ten iron-aluminum-chromium weld claddings with aluminum concentrations up to 10wt% were tested in a variety of environments to evaluate their high temperature corrosion resistance. The weld overlay claddings also contained titanium additions to investigate any beneficial effects from these ternary and quaternary alloying additions. Several High-Velocity Oxy-Fuel (HVOF) thermal spray coatings with higher aluminum concentrations were investigated as well. Gaseous corrosion testing revealed that at least 10wt%Al is required for protection in the range of environments examined. Chromium additions were beneficial in all of the environments, but additions of titanium were beneficial only in sulfur rich atmospheres. Similar results were observed when weld claddings were in contact with corrosive slag while simultaneously, exposed to the corrosive environments. An aluminum concentration of 10wt% was required to prevent large amounts of corrosion to take place. Again chromium additions were beneficial with the greatest corrosion protection occurring for welds containing both 10wt%Al and 5wt%Cr. The exposed thermal spray coatings showed either significant cracking within the coating, considerable thickness loss, or corrosion products at the coating substrate interface. Therefore, the thermal spray coatings provided the substrate very little protection. Overall, it was concluded that of the coatings studied weld overlay coatings provide superior protection in these Low NOx environments; specifically, the ternary weld composition of 10wt%Al and 5wt%Cr provided the best corrosion protection in all of the environments tested.

Regina, J.R.

2002-02-08

283

Plant growth-promoting fungus Penicillium spp. GP15-1 enhances growth and confers protection against damping-off and anthracnose in the cucumber.  

PubMed

Plant growth-promoting fungi (PGPF) have the potential to confer several benefits to plants in terms of growth and protection against pests and pathogens. In the present study, we tested whether a PGPF isolate, Penicillium spp. GP15-1 (derived from zoysiagrass rhizospheres), stimulates growth and disease resistance in the cucumber plant. The use of the barley grain inoculum GP15-1 significantly enhanced root and shoot growth and biomass of cucumber plants. A root colonization study revealed that GP15-1 was a very rapid and efficient root colonizer and was isolated in significantly higher frequencies from the upper root parts than from the middle and lower root parts during the first 14 d of seedling growth. Inoculating the cucumber seedlings with GP15-1 significantly reduced the damping-off disease caused by Rhizoctonia solani, and the disease suppression effects of GP15-1 were considerably influenced by the inoculum potential of both GP15-1 and the pathogen. Treatment with the barley grain inoculum or a cell-free filtrate of GP15-1 increased systemic resistance against leaf infection by the anthracnose pathogen Colletotrichum orbiculare, resulting in a significant decrease in lesion number and size. Molecular and phylogenetic analyses of internal transcribed spacer sequences of the genomic DNA of GP15-1 revealed that the fungal isolate is a strain of either Penicillium neoechinulatum or Penicillium viridicatum. PMID:24671024

Hossain, Md Motaher; Sultana, Farjana; Miyazawa, Mitsuo; Hyakumachi, Mitsuro

2014-01-01

284

Plant-Based Vaccine: Mice Immunized with Chloroplast-Derived Anthrax Protective Antigen Survive Anthrax Lethal Toxin Challenge  

Microsoft Academic Search

The currently available human vaccine for anthrax, derived from the culture supernatant of Bacillus anthracis, contains the protective antigen (PA) and traces of the lethal and edema factors, which may contribute to adverse side effects associated with this vaccine. Therefore, an effective expression system that can provide a clean, safe, and efficacious vaccine is required. In an effort to produce

Vijay Koya; Mahtab Moayeri; Stephen H. Leppla; Henry Daniell

2005-01-01

285

PROGRAMMES DES LYCES MATHMATIQUES  

E-print Network

8 Le B.O. N°7 1ER SEPT. 2005 PROGRAMMES DES LYC?ES MATH?MATIQUES CLASSE TERMINALE - S?RIE LITT?RAIRE HORS-S?RIE Annexe #12;9Le B.O. N°7 1ER SEPT. 2005 PROGRAMMES DES LYC?ES MATH?MATIQUES CLASSE TERMINALE - S?RIE LITT?RAIRE HORS-S?RIE #12;10 Le B.O. N°7 1ER SEPT. 2005 PROGRAMMES DES LYC?ES

Menichi, Luc

286

Galaxy clusters in DES  

NASA Astrophysics Data System (ADS)

Galaxy clusters are one of the four key cosmic acceleration probes used by the Dark Energy Survey (DES) to measure cosmological parameters with unprecedented precision. DES has recently completed commissioning of its instrument and accomplished a successful science verification data taking phase. The survey proper started in Aug 31, 2013. In this talk, I review the motivation for using clusters of galaxies in cosmology, discuss the DES expected performance and present the prospects to improve our understanding of dark energy by constraining cosmological models using galaxy clusters found by the Voronoi Tesselation galaxy cluster finding algorithm. We show results of our galaxy cluster analysis based on the early DES data sets.

Soares-Santos, Marcelle; DES Collaboration

2014-01-01

287

Expression of a Synthesized Gene Encoding Cationic Peptide Cecropin B in Transgenic Tomato Plants Protects against Bacterial Diseases?  

PubMed Central

The cationic lytic peptide cecropin B (CB), isolated from the giant silk moth (Hyalophora cecropia), has been shown to effectively eliminate Gram-negative and some Gram-positive bacteria. In this study, the effects of chemically synthesized CB on plant pathogens were investigated. The S50s (the peptide concentrations causing 50% survival of a pathogenic bacterium) of CB against two major pathogens of the tomato, Ralstonia solanacearum and Xanthomonas campestris pv. vesicatoria, were 529.6 ?g/ml and 0.29 ?g/ml, respectively. The CB gene was then fused to the secretory signal peptide (sp) sequence from the barley ?-amylase gene, and the new construct, pBI121-spCB, was used for the transformation of tomato plants. Integration of the CB gene into the tomato genome was confirmed by PCR, and its expression was confirmed by Western blot analyses. In vivo studies of the transgenic tomato plant demonstrated significant resistance to bacterial wilt and bacterial spot. The levels of CB expressed in transgenic tomato plants (?0.05 ?g in 50 mg of leaves) were far lower than the S50 determined in vitro. CB transgenic tomatoes could therefore be a new mode of bioprotection against these two plant diseases with significant agricultural applications. PMID:19966019

Jan, Pey-Shynan; Huang, Hsu-Yuang; Chen, Hueih-Min

2010-01-01

288

Will climate change drive alien invasive plants into areas of high protection value? An improved model-based regional assessment to prioritise the management of invasions.  

PubMed

Species distribution models (SDMs) studies suggest that, without control measures, the distribution of many alien invasive plant species (AIS) will increase under climate and land-use changes. Due to limited resources and large areas colonised by invaders, management and monitoring resources must be prioritised. Choices depend on the conservation value of the invaded areas and can be guided by SDM predictions. Here, we use a hierarchical SDM framework, complemented by connectivity analysis of AIS distributions, to evaluate current and future conflicts between AIS and high conservation value areas. We illustrate the framework with three Australian wattle (Acacia) species and patterns of conservation value in Northern Portugal. Results show that protected areas will likely suffer higher pressure from all three Acacia species under future climatic conditions. Due to this higher predicted conflict in protected areas, management might be prioritised for Acacia dealbata and Acacia melanoxylon. Connectivity of AIS suitable areas inside protected areas is currently lower than across the full study area, but this would change under future environmental conditions. Coupled SDM and connectivity analysis can support resource prioritisation for anticipation and monitoring of AIS impacts. However, further tests of this framework over a wide range of regions and organisms are still required before wide application. PMID:24161807

Vicente, J R; Fernandes, R F; Randin, C F; Broennimann, O; Gonalves, J; Marcos, B; Pas, I; Alves, P; Guisan, A; Honrado, J P

2013-12-15

289

An evaluation of fish early life stage tests for predicting reproductive and longer-term toxicity from plant protection product active substances.  

PubMed

The chronic toxicity of chemicals to fish is routinely assessed by using fish early life stage (ELS) test results. Fish full life cycle (FLC) tests are generally required only when toxicity, bioaccumulation, and persistence triggers are met or when there is a suspicion of potential endocrine-disrupting properties. This regulatory approach is based on a relationship between the results of fish ELS and FLC studies first established more than 35 yrs ago. Recently, this relationship has been challenged by some regulatory authorities, and it has been recommended that more substances should undergo FLC testing. In addition, a project proposal has been submitted to the Organisation for Economic Cooperation and Development (OECD) to develop a fish partial life cycle (PLC) test including a reproductive assessment. Both FLC and PLC tests are animal- and resource-intensive and technically challenging and should therefore be undertaken only if there is clear evidence that they are necessary for coming to a regulatory decision. The present study reports on an analysis of a database of paired fish ELS and FLC endpoints for plant protection product active substances from European Union draft assessment reports and the US Environmental Protection Agency Office of Pesticide Programs Pesticide Ecotoxicity Database. Analysis of this database shows a clear relationship between ELS and FLC responses, with similar median sensitivity across substances when no-observed-effect concentrations (NOECs) are compared. There was also no indication that classification of a substance as a mammalian reproductive toxicant leads to more sensitive effects in fish FLC tests than in ELS tests. Indeed, the response of the ELS tests was generally more sensitive than the most sensitive reproduction NOEC from a FLC test. This analysis indicates that current testing strategies and guidelines are fit for purpose and that there is no need for fish full or partial life cycle tests for most plant protection product active substances. PMID:24799351

Wheeler, James R; Maynard, Samuel K; Crane, Mark

2014-08-01

290

Programmed cell death in plants: protective effect of tetraphenylphosphonium and tetramethylrhodamine cations used as transmembrane quinone carriers.  

PubMed

Tetraphenylphosphonium (TPP(+)) and tetramethylrhodamine ethyl ester (TMRE(+)) cations used as transmembrane carriers of ubiquinone (MitoQ) and plastoquinone (SkQ, SkQR) in mitochondria prevented at nanomolar concentrations the chitosan- or H(2)O(2)-induced destruction of the nucleus in epidermal cells of epidermis isolated from pea leaves. The protective effect of the cations was potentiated by palmitate. Penetrating anions of tetraphenylboron (TB(-)) and phenyl dicarbaundecaborane also displayed protective effects at micromolar concentrations; the effect of TB(-) was potentiated by NH(4)Cl. It is proposed that the protective effect of the penetrating cations and anions against chitosan is due to suppression of the generation of reactive oxygen species in mitochondria as a result of the protonophoric effect of the cations plus fatty acids and the anions plus NH(4)(+). Phenol was suitable as the electron donor for H2O2 reduction catalyzed by horseradish peroxidase, preventing the destruction of cell nuclei. The penetrating cations and anions, SkQ1, and SkQR1 did not maintain the peroxidase or peroxidase/oxidase reactions measured by their suitability as electron donors for H(2)O(2) reduction or by the oxidation of exogenous NADH. PMID:22809154

Vasil'ev, L A; Kiselevsky, D B; Dzyubinskaya, E V; Nesov, A V; Samuilov, V D

2012-04-01

291

Elimination des noeuds dans le probleme newtonien des quatre corps  

Microsoft Academic Search

Rsum Nous appliquons la mthode des transformations canoniques variables imposes la rduction du problme newtonien des quatre corps. L'limination du centre de gravit tant suppose faite, le problme est ramen celui des trois corps fictifs. Alors nous menons bien la rduction de aux intgrales des aires explicitement sous forme Hamiltonienne en tenant compte de l'aspect gomtrique

Franoise Boigey; M. Curie

1982-01-01

292

MIGRATION DES JOINTS DE GRAINS LA MIGRATION DES JOINTS INTERGRANULAIRES  

E-print Network

MIGRATION DES JOINTS DE GRAINS LA MIGRATION DES JOINTS INTERGRANULAIRES O. DIMITROV Centre d nombre de faits fondamentaux concernant la migration des joints de grains sont brièvement rappelés considérant les forces qui provoquent ou qui freinent la migration. L'évolution des modèles proposés pour

Boyer, Edmond

293

LA GESTION DES RESULTATS COMPTABLES LORS DES FUSIONS  

E-print Network

in the year preceding the takeover. Key Words: Earnings management; Mergers and Acquisitions; InternationalLA GESTION DES RESULTATS COMPTABLES LORS DES FUSIONS ET ACQUISITIONS: UNE ANALYSE DANS LE CONTEXTE des résultats comptables lors des fusions et acquisitions: Une analyse dans le contexte Suisse Résumé

Paris-Sud XI, Université de

294

Facult des arts et des sciences Dpartement de communication  

E-print Network

Faculté des arts et des sciences Département de communication Plans de cours cadre Cours des programmes de premier cycle en sciences de la communication Comité des études de premier cycle Adopté par l..................................................................................................................................3 COM 1150 Rédaction en communication 1

Parrott, Lael

295

Characterization of the Fungal Gibberellin Desaturase as a 2-Oxoglutarate-Dependent Dioxygenase and Its Utilization for Enhancing Plant Growth1[W][OA  

PubMed Central

The biosynthesis of gibberellic acid (GA3) by the fungus Fusarium fujikuroi is catalyzed by seven enzymes encoded in a gene cluster. While four of these enzymes are characterized as cytochrome P450 monooxygenases, the nature of a fifth oxidase, GA4 desaturase (DES), is unknown. DES converts GA4 to GA7 by the formation of a carbon-1,2 double bond in the penultimate step of the pathway. Here, we show by expression of the des complementary DNA in Escherichia coli that DES has the characteristics of a 2-oxoglutarate-dependent dioxygenase. Although it has low amino acid sequence homology with known 2-oxoglutarate-dependent dioxygenases, putative iron- and 2-oxoglutarate-binding residues, typical of such enzymes, are apparent in its primary sequence. A survey of sequence databases revealed that homologs of DES are widespread in the ascomycetes, although in most cases the homologs must participate in non-gibberellin (GA) pathways. Expression of des from the cauliflower mosaic virus 35S promoter in the plant species Solanum nigrum, Solanum dulcamara, and Nicotiana sylvestris resulted in substantial growth stimulation, with a 3-fold increase in height in S. dulcamara compared with controls. In S. nigrum, the height increase was accompanied by a 20-fold higher concentration of GA3 in the growing shoots than in controls, although GA1 content was reduced. Expression of des was also shown to partially restore growth in plants dwarfed by ectopic expression of a GA 2-oxidase (GA-deactivating) gene, consistent with GA3 being protected from 2-oxidation. Thus, des has the potential to enable substantial growth increases, with practical implications, for example, in biomass production. PMID:22911627

Bhattacharya, Anjanabha; Kourmpetli, Sofia; Ward, Dennis A.; Thomas, Stephen G.; Gong, Fan; Powers, Stephen J.; Carrera, Esther; Taylor, Benjamin; de Caceres Gonzalez, Francisco Nunez; Tudzynski, Bettina; Phillips, Andrew L.; Davey, Michael R.; Hedden, Peter

2012-01-01

296

Vincent Manet Mthode des  

E-print Network

Vincent Manet Méthode des éléments finis Vulgarisation des aspects mathématiques et illustration de la méthode Version 3 du 20 août 2013 cel-00763690,version3-22Aug2013 #12;Vincent Manet -- 2013 (Ceci

297

Sun Protection  

MedlinePLUS

... Risks of Tanning Tanning Products Sun Protection Links Sun Protection Sun Protection Tips Protective Clothing Sunglasses Sunscreen ... for integrating sun protection into your daily routine. Sun Protection Tips Avoid overexposure to UV rays from ...

298

Pre-historic eating patterns in Latin America and protective effects of plant-based diets on cardiovascular risk factors  

PubMed Central

In this review, we present the contributions to nutrition science from Latin American native peoples and scientists, appreciated from a historic point of view since pre?historic times to the modern age. Additionally, we present epidemiological and clinical studies on the area of plant?based diets and their relation with the prevention and treatment of cardiovascular diseases conducted in recent decades, and we discuss challenges and perspectives regarding aspects of nutrition in the region. PMID:21120310

Acosta Navarro, Julio C; Cardenas Prado, Silvia M; Cardenas, Pedro Acosta; Santos, Raul D; Caramelli, Bruno

2010-01-01

299

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I demonstration plant, Newman, Kentucky. [Demonstration plant at Newman, KY  

SciTech Connect

This document and its several appendices constitute an application for a Kentucky Permit to Construct an Air Contaminant Source as well as a Prevention of Significant Air Quality Deterioration (PSD) Permit Application. The information needed to satisfy the application requirements for both permits has been integrated into a complete and logical description of the proposed source, its emissions, control systems, and its expected air quality impacts. The Department of Energy believes that it has made every reasonable effort to be responsive to both the letter and the spirit of the PSD regulations (40 CFR 52.21) and Kentucky Regulation No. 401 KAR 50:035. In this regard, it is important to note that because of the preliminary status of some aspects of the process engineering and engineering design for the Demonstration Plant, it is not yet possible precisely to define some venting operations or their associated control systems. Therefore, it is not possible precisely to quantify some atmospheric emissions or their likely impact on air quality. In these instances, DOE and ICRC have used assumptions that produce impact estimates that are believed to be worst case and are not expected to be exceeded no matter what the outcome of future engineering decisions. As these decisions are made, emission quantities and rates, control system characteristics and efficiencies, and vent stack parameters are more precisely defined; this Permit Application will be supplemented or modified as appropriate. But, all needed modifications are expected to represent either decreases or at worst no changes in the air quality impact of the SRC-I Demonstration Plant.

none,

1980-11-21

300

Regulatory issues for Waste Isolation Pilot Plant long-term compliance with U.S. Environmental Protection Agency 40 CFR 191B and 268  

SciTech Connect

Before disposing of transuranic radioactive waste at the Waste Isolation Pilot Plant (WIPP), the United States Department of Energy (DOE) must evaluate compliance with long-term regulations of the United States Environmental Protection Agency (EPA), specifically the Environmental Standards for the Management and Disposal of Spent Nuclear Fuel, High-Level and Transuranic Radioactive Wastes (40 CFR 191), and the Land Disposal Restrictions (40 CFR 268) of the Hazardous and Solid Waste Amendments to the Resource Conservation and Recovery Act (RCRA). Sandia National Laboratories (SNL) is conducting iterative performance assessments (PAs) of the WIPP for the DOE to provide interim guidance while preparing for final compliance evaluations. This paper provides background information on the regulations, describes the SNL WIPP PA Departments approach to developing a defensible technical basis for consistent compliance evaluations, and summarizes the major observations and conclusions drawn from the 1991 and 1992 PAs.

Anderson, D.R.; Marietta, M.G. [Sandia National Labs., Albuquerque, NM (United States); Higgins, P.J. Jr. [USDOE Albuquerque Field Office, NM (United States). Waste Isolation Pilot Plant Project Integration Office

1993-10-01

301

Community Environmental Response Facilitation Act (CERFA) report. Fort Des Moines, Des Moines, Iowa. Final report  

SciTech Connect

This report presents the results of the Community Environmental Response Facilitation Act (CERFA) investigation conducted by The Earth Technology Corporation (TETC) at the Fort Des Moines, a U.S. Government property selected for closure by the Base Realignment and Closure (BRAC) Commission. Under CERFA Federal agencies are required to identify real property that can be immediately reused and redeveloped. Satisfying this objective requires the identification of real property where no hazardous substances or petroleum products, regulated by the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), were stored for one year or more, known to have been released, or disposed. Fort Des Moines is a 53.28-acre site located in Polk County, Iowa, within the city limits of Des Moines. The installation's primary mission is to provide support and shelter for the U.S. Army Reserve. Activities associated with the property that have environmental significance are photographic processing, vehicle maintenance, printing, and fuel storage. TETC reviewed existing investigation documents; U.S. Environmental Protection Agency (USEPA), State, and county regulatory records; environmental data bases; and title documents pertaining to Fort Des Moines during this investigation. In addition, TETC conducted interviews and visual inspections of Fort Des Moines as well as visual inspections and data base searches for the surrounding properties. Information in this CERFA Report was current as of April 1994.

Young, B.; Rausch, K.; Kang, J.

1994-04-01

302

Selection for protection in an antplant mutualism: host sanctions, host modularity, and the principalagent game  

PubMed Central

Retaliation against cheaters can prevent the breakdown of cooperation. Here we ask whether the antplant Cordia nodosa is able to apply retaliatory sanctions against its ant symbiont Allomerus octoarticulatus, which patrols new shoots to prevent herbivory. We test the hypothesis that the modular design of C. nodosa physiologically ties the growth of housing (stem swellings known as domatia) to the successful development of the attached leaves. We experimentally simulated herbivory by cutting leaves from patrolled shoots and found that the domatia on such cheated shoots suffered higher mortality and lower growth than did controls, evidence for a host sanction. On the other hand, patrolling is costly to the ant, and experiment shows that non-patrollers run a low risk of being sanctioned because most leaves (and the attached domatia) escape heavy herbivory even when patrollers are absent. This suggests that cheaters might enjoy a higher fitness than do mutualists, despite sanctions, but we find that patrolling provides a net fecundity benefit when the colony and plant exceed a minimum size, which requires sustained ant investment in patrolling. These results map directly onto the principalagent (PA) game from economics, which we suggest can be used as a framework for studying stability in mutualisms, where high sampling costs and cheating do not allow market effects to select for mutual benefits. PMID:16537131

Edwards, David P; Hassall, Mark; Sutherland, William J; Yu, Douglas W

2005-01-01

303

Dmographie Facult des arts et des sciences  

E-print Network

� sera maintenue). Professeur: LACHAUD, James Courriel: james.lachaud@umontreal.ca Local: C-5031'analyse explicative: les causes et cons�quences des ph�nom�nes. Le cours ciblera les r�gressions lin�aires et non-lin

Parrott, Lael

304

PHARMA -Rglement des examens et des jurys 2013-2014 Rglement des examens -Pharma juin 2013 1 / 16  

E-print Network

PHARMA - Règlement des examens et des jurys 2013-2014 Règlement des examens - Pharma juin 2013 1 missions décrites dans ce règlement. #12;PHARMA - Règlement des examens et des jurys 2013-2014 Règlement des examens - Pharma juin 2013 2 / 16 2 UNIVERSITE LIBRE DE BRUXELLES DEPARTEMENT ENSEIGNEMENT SERVICE

Cerf, Nicolas

305

PROCDURE DE DCLARATION DES ACCIDENTS, DES INCIDENTS ET DES SITUATIONS DANGEREUSES EN MILIEU DE TRAVAIL Novembre 2013  

E-print Network

PROC?DURE DE D?CLARATION DES ACCIDENTS, DES INCIDENTS ET DES SITUATIONS DANGEREUSES EN MILIEU DE de déclaration des accidents, des incidents et des situations dangereuses en milieu de travail. Ce, tout accident ou incident doit faire l'objet d'une déclaration officielle auprès de l'employeur. Selon

Meunier, Michel

306

A ?-Glutamyl Cyclotransferase Protects Arabidopsis Plants from Heavy Metal Toxicity by Recycling Glutamate to Maintain Glutathione Homeostasis[C][W  

PubMed Central

Plants detoxify toxic metals through a GSH-dependent pathway. GSH homeostasis is maintained by the ?-glutamyl cycle, which involves GSH synthesis and degradation and the recycling of component amino acids. The enzyme ?-glutamyl cyclotransferase (GGCT) is involved in Glu recycling, but the gene(s) encoding GGCT has not been identified in plants. Here, we report that an Arabidopsis thaliana protein with a cation transport regulator-like domain, hereafter referred to as GGCT2;1, functions as ?-glutamyl cyclotransferase. Heterologous expression of GGCT2;1 in Saccharomyces cerevisiae produced phenotypes that were consistent with decreased GSH content attributable to either GSH degradation or the diversion of ?-glutamyl peptides to produce 5-oxoproline (5-OP). 5-OP levels were further increased by the addition of arsenite and GSH to the medium, indicating that GGCT2;1 participates in the cellular response to arsenic (As) via GSH degradation. Recombinant GGCT2;1 converted both GSH and ?-glutamyl Ala to 5-OP in vitro. GGCT2;1 transcripts were upregulated in As-treated Arabidopsis, and ggct2;1 knockout mutants were more tolerant to As and cadmium than the wild type. Overexpression of GGCT2;1 in Arabidopsis resulted in the accumulation of 5-OP. Under As toxicity, the overexpression lines showed minimal changes in de novo Glu synthesis, while the ggct2;1 mutant increased nitrogen assimilation by severalfold, resulting in a very low As/N ratio in tissue. Thus, our results suggest that GGCT2;1 ensures sufficient GSH turnover during abiotic stress by recycling Glu. PMID:24214398

Paulose, Bibin; Chhikara, Sudesh; Coomey, Joshua; Jung, Ha-il; Vatamaniuk, Olena; Dhankher, Om Parkash

2013-01-01

307

A ?-glutamyl cyclotransferase protects Arabidopsis plants from heavy metal toxicity by recycling glutamate to maintain glutathione homeostasis.  

PubMed

Plants detoxify toxic metals through a GSH-dependent pathway. GSH homeostasis is maintained by the ?-glutamyl cycle, which involves GSH synthesis and degradation and the recycling of component amino acids. The enzyme ?-glutamyl cyclotransferase (GGCT) is involved in Glu recycling, but the gene(s) encoding GGCT has not been identified in plants. Here, we report that an Arabidopsis thaliana protein with a cation transport regulator-like domain, hereafter referred to as GGCT2;1, functions as ?-glutamyl cyclotransferase. Heterologous expression of GGCT2;1 in Saccharomyces cerevisiae produced phenotypes that were consistent with decreased GSH content attributable to either GSH degradation or the diversion of ?-glutamyl peptides to produce 5-oxoproline (5-OP). 5-OP levels were further increased by the addition of arsenite and GSH to the medium, indicating that GGCT2;1 participates in the cellular response to arsenic (As) via GSH degradation. Recombinant GGCT2;1 converted both GSH and ?-glutamyl Ala to 5-OP in vitro. GGCT2;1 transcripts were upregulated in As-treated Arabidopsis, and ggct2;1 knockout mutants were more tolerant to As and cadmium than the wild type. Overexpression of GGCT2;1 in Arabidopsis resulted in the accumulation of 5-OP. Under As toxicity, the overexpression lines showed minimal changes in de novo Glu synthesis, while the ggct2;1 mutant increased nitrogen assimilation by severalfold, resulting in a very low As/N ratio in tissue. Thus, our results suggest that GGCT2;1 ensures sufficient GSH turnover during abiotic stress by recycling Glu. PMID:24214398

Paulose, Bibin; Chhikara, Sudesh; Coomey, Joshua; Jung, Ha-Il; Vatamaniuk, Olena; Dhankher, Om Parkash

2013-11-01

308

De l'origine des choses la dynamique des plantes  

E-print Network

minéral tardif, le phosphate #12;Le début de la chronologie moderne L'incerHtude sur l'âge passe en`vités éteintes, sauf pour le fer 60 (supernovae) et probablement hafnium 182 et l'aluminium 26, reste discutée

van Tiggelen, Bart

309

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

310

Dietary protection against free radicals: a case for multiple testing to establish structure-activity relationships for antioxidant potential of anthocyanic plant species.  

PubMed

DNA damage by reactive species is associated with susceptibility to chronic human degenerative disorders. Anthocyanins are naturally occurring antioxidants, that may prevent or reverse such damage. There is considerable interest in anthocyanic food plants as good dietary sources, with the potential for reducing susceptibility to chronic disease. While structure-activity relationships have provided guidelines on molecular structure in relation to free hydroxyl-radical scavenging, this may not cover the situation in food plants where the anthocyanins are part of a complex mixture, and may be part of complex structures, including anthocyanic vacuolar inclusions (AVIs). Additionally, new analytical methods have revealed new structures in previously-studied materials. We have compared the antioxidant activities of extracts from six anthocyanin-rich edible plants (red cabbage, red lettuce, blueberries, pansies, purple sweetpotato skin, purple sweetpotato flesh and Maori potato flesh) using three chemical assays (DPPH, TRAP and ORAC), and the in vitro Comet assay. Extracts from the flowering plant, lisianthus, were used for comparison. The extracts showed differential effects in the chemical assays, suggesting that closely related structures have different affinities to scavenge different reactive species. Integration of anthocyanins to an AVI led to more sustained radical scavenging activity as compared with the free anthocyanin. All but the red lettuce extract could reduce endogenous DNA damage in HT-29 colon cancer cells. However, while extracts from purple sweetpotato skin and flesh, Maori potato and pansies, protected cells against subsequent challenge by hydrogen peroxide at 0 degrees C, red cabbage extracts were pro-oxidant, while other extracts had no effect. When the peroxide challenge was at 37 degrees C, all of the extracts appeared pro-oxidant. Maori potato extract, consistently the weakest antioxidant in all the chemical assays, was more effective in the Comet assays. These results highlight the dangers of generalising to potential health benefits, based solely on identification of high anthocyanic content in plants, results of a single antioxidant assay and traditional approaches to structure activity relationships. Subsequent studies might usefully consider complex mixtures and a battery of assays. PMID:19399239

Philpott, Martin; Lim, Chiara Cheng; Ferguson, Lynnette R

2009-03-01

311

Indole acetic acid is responsible for protection against oxidative stress caused by drought in soybean plants: the role of heme oxygenase induction.  

PubMed

Objectives This study was focused on the role of indole acetic acid (IAA) in the defense against oxidative stress damage caused by drought in soybean plants and to elucidate whether heme oxygenase-1 (HO-1) and nitric oxide (NO) are involved in this mechanism. IAA is an auxin that participates in many plant processes including oxidative stress defense, but to the best of our knowledge no information is yet available about its possible action in drought stress. Methods To this end, soybean plants were treated with 8% polyethylene glycol (PEG) or 100M IAA. To evaluate the behavior of IAA, plants were pretreated with this compound previous to PEG addition. Lipid peroxidation levels (thiobarbituric acid reactive substances (TBARS)), glutathione (GSH) and ascorbate (AS) contents, catalase (CAT), superoxide dismutase (SOD), and guaiacol peroxidase (POD) activities were determined to evaluate oxidative damage. Results Drought treatment (8% PEG) caused a significant increase in TBARS levels as well as a marked decrease in the non-enzymatic (GSH and AS) and enzymatic (CAT, SOD, and POD) antioxidant defense systems. Pre-treatment with IAA prevented the alterations of stress parameters caused by drought, while treatment with IAA alone did not produce changes in TBARS levels, or GSH and AS contents. Moreover, the activities of the classical enzymes involved in the enzymatic defense system (SOD, CAT, and POD) remained similar to control values. Furthermore, this hormone could enhance HO-1 activity (75% with respect to controls), and this increase was positively correlated with protein content as well as gene expression. The direct participation of HO-1 as an antioxidant enzyme was established by performing experiments in the presence of Zn-protoporphyrin IX, a well-known irreversible inhibitor of this enzyme. It was also demonstrated that HO-1 is modulated by NO, as shown by experiments performed in the presence of an NO donor (sodium nitroprusside), an NO scavenger (2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide), or an NO synthesis inhibitor (N-nitro-l-arginine methyl ester, NAME). Discussion It is concluded that IAA is responsible, at least in part, for the protection against oxidative stress caused by drought in soybean plants through the modulation of NO levels which, in turn, enhances HO-1 synthesis and activity. PMID:25156196

Lecube, Manuel Lpez; Noriega, Guillermo O; Santa Cruz, Diego M; Tomaro, Mara L; Batlle, Alcira; Balestrasse, Karina B

2014-11-01

312

Dietary Protection Against Free Radicals: A Case for Multiple Testing to Establish Structure-activity Relationships for Antioxidant Potential of Anthocyanic Plant Species  

PubMed Central

DNA damage by reactive species is associated with susceptibility to chronic human degenerative disorders. Anthocyanins are naturally occurring antioxidants, that may prevent or reverse such damage. There is considerable interest in anthocyanic food plants as good dietary sources, with the potential for reducing susceptibility to chronic disease. While structure-activity relationships have provided guidelines on molecular structure in relation to free hydroxyl-radical scavenging, this may not cover the situation in food plants where the anthocyanins are part of a complex mixture, and may be part of complex structures, including anthocyanic vacuolar inclusions (AVIs). Additionally, new analytical methods have revealed new structures in previously-studied materials. We have compared the antioxidant activities of extracts from six anthocyanin-rich edible plants (red cabbage, red lettuce, blueberries, pansies, purple sweetpotato skin, purple sweetpotato flesh and Maori potato flesh) using three chemical assays (DPPH, TRAP and ORAC), and the in vitro Comet assay. Extracts from the flowering plant, lisianthus, were used for comparison. The extracts showed differential effects in the chemical assays, suggesting that closely related structures have different affinities to scavenge different reactive species. Integration of anthocyanins to an AVI led to more sustained radical scavenging activity as compared with the free anthocyanin. All but the red lettuce extract could reduce endogenous DNA damage in HT-29 colon cancer cells. However, while extracts from purple sweetpotato skin and flesh, Maori potato and pansies, protected cells against subsequent challenge by hydrogen peroxide at 0C, red cabbage extracts were pro-oxidant, while other extracts had no effect. When the peroxide challenge was at 37C, all of the extracts appeared pro-oxidant. Maori potato extract, consistently the weakest antioxidant in all the chemical assays, was more effective in the Comet assays. These results highlight the dangers of generalising to potential health benefits, based solely on identification of high anthocyanic content in plants, results of a single antioxidant assay and traditional approaches to structure activity relationships. Subsequent studies might usefully consider complex mixtures and a battery of assays. PMID:19399239

Philpott, Martin; Lim, Chiara Cheng; Ferguson, Lynnette R.

2009-01-01

313

Pseudomonas protegens sp. nov., widespread plant-protecting bacteria producing the biocontrol compounds 2,4-diacetylphloroglucinol and pyoluteorin.  

PubMed

Fluorescent Pseudomonas strains producing the antimicrobial secondary metabolite 2,4-diacetylphloroglucinol (Phl) play a prominent role in the biocontrol of plant diseases. A subset of Phl-producing fluorescent Pseudomonas strains, which can additionally synthesize the antimicrobial compound pyoluteorin (Plt), appears to cluster separately from other fluorescent Pseudomonas spp. based on 16S rRNA gene analysis and shares at most 98.4% 16S rRNA gene sequence identity with any other Pseudomonas species. In this study, a polyphasic approach based on molecular and phenotypic methods was used to clarify the taxonomy of representative Phl(+) Plt(+) strains isolated from tobacco, cotton or wheat on different continents. Phl(+) Plt(+) strains clustered separately from their nearest phylogenetic neighbors (i.e. species from the 'P. syringae', 'P. fluorescens' and 'P. chlororaphis' species complexes) based on rpoB, rpoD or gyrB phylogenies. DNA-DNA hybridization experiments clarified that Phl(+) Plt(+) strains formed a tight genomospecies that was distinct from P. syringae, P. fluorescens, or P. chlororaphis type strains. Within Phl(+) strains, the Phl(+) Plt(+) strains were differentiated from other biocontrol fluorescent Pseudomonas strains that produced Phl but not Plt, based on phenotypic and molecular data. Discriminative phenotypic characters were also identified by numerical taxonomic analysis and siderotyping. Altogether, this polyphasic approach supported the conclusion that Phl(+) Plt(+) fluorescent Pseudomonas strains belonged to a novel species for which the name Pseudomonas protegens is proposed, with CHA0(T) (=CFBP 6595(T), =DSM 19095(T)) as the type strain. PMID:21392918

Ramette, Alban; Frapolli, Michele; Fischer-Le Saux, Marion; Gruffaz, C; Meyer, Jean-Marie; Dfago, Genevive; Sutra, Laurent; Monne-Loccoz, Yvan

2011-05-01

314

The role of isoflavone metabolism in plant protection depends on therhizobacterial MAMP that triggers systemic resistance against Xanthomonas axonopodis pv. glycines in Glycine max (L.) Merr. cv. Osumi.  

PubMed

Glycine max (L.) Merr. plays a crucial role in both the field of food and the pharmaceutical industry due to their input as plant protein and to the benefits of isoflavones (IF) for health. In addition, IF play a key role in nodulation and plant defense and therefore, an increase in IF would be desirable for better field performance. IF are secondary metabolites and therefore, inducible, so finding effective agents to increase IF contents is interesting. Among these agents, plant growth promoting rhizobacteria (PGPR) have been used to trigger systemic induction of plant's secondary metabolism through their microbe associated molecular patterns (MAMPs) that fit in the plant's receptors to start a systemic response. The aim of this study was to evaluate the ability of 4 PGPR that had a contrasted effect on IF metabolism, to protect plants against biotic stress and to establish the relation between IF profile and the systemic response triggered by the bacteria. Apparently, the response involves a lower sensitivity to ethylene and despite the decrease in effective photosynthesis, growth is only compromised in the case of M84, the most effective in protection. All strains protected soybean against Xanthomonas axonopodis pv. glycines (M84>N5.18>Aur9>N21.4) and only M84 and N5.18 involved IF. N5.18 stimulated accumulation of IF before pathogen challenge. M84 caused a significant increase on IF only after pathogen challenge and N21.4 caused a significant increase on IF content irrespective of pathogen challenge. Aur9 did not affect IF. These results point out that all 4 strains have MAMPs that trigger defensive metabolism in soybean. Protection induced by N21.4 and Aur9 involves other metabolites different to IF and the role of IF in defence depends on the previous metabolic status of the plant and on the bacterial MAMP. PMID:24869797

Algar, Elena; Gutierrez-Maero, F Javier; Garcia-Villaraco, Ana; Garca-Seco, Daniel; Lucas, J Antonio; Ramos-Solano, Beatriz

2014-09-01

315

SURVEILLANCE ET CONTROLE DES ACTIVITES DES NAVIRES EN MER  

E-print Network

, clandestine immigrants, piracy, toxic waste pollution, accidents, etc.). Key words: Maritime border security1 SURVEILLANCE ET CONTROLE DES ACTIVITES DES NAVIRES EN MER ScanMaris Michel MOREL (DCNS), Aldo produits illicites, l'immigration clandestine, la sur exploitation des ressources halieutiques, les

Boyer, Edmond

316

Qualit des composts et des digestats Fabienne MULLER  

E-print Network

Qualité des composts et des digestats Fabienne MULLER Direction consommation durable et déchets organiques se construit, avec aujourd'hui le développement important de la méthanisation. Les composts actuellement produits, peuvent l'être avec des digestats ou non. Les quantités de compost produit ne cessent d

Boyer, Edmond

317

La modelisation mathematique des plasmas au service des technologies spatiales  

E-print Network

1 La mod�elisation math�ematique des plasmas au service des technologies spatiales C. Besse (1) P'activit�e solaire sur l'environnement terrestre . . . . . . . . . . 13 2.3 Qu'est ce qu'un plasma.3.2 Plasmas froids et plasmas chauds . . . . . . . . . . . . . . . . . . . . . . 14 2.3.3 Autres aspects des

Vignal, Marie-Hélène

318

Plan de cours Facult des arts et des sciences  

E-print Network

Powerpoint sont en anglais tandis que je parle surtout en fran�ais et la plupart des discussions en classe se �tudiants devront pr�parer des diapositives en utilisant le logiciel PowerPoint. Les �tudiants doivent donc l'enseignement du fonctionnement des logiciels tels que PowerPoint, QuarkXPress, InDesign ou autre

Parrott, Lael

319

The DES Story: Lessons Learned  

Cancer.gov

Dr. Robert Hoover discusses the DES followup study, which follows diethylstilbestrol (DES) exposed and unexposed mothers, daughters and sons, and granddaughters for adverse health effects resulting from this exposure.

320

Des conflits toutes les chelles  

E-print Network

Des conflits à toutes les échelles Des conflits à toutes les échelles La ressource en eau se raréfie et la demande s'accroît. Cette situation peut être source de tensions ou raviver des conflits déjà ayant droits d'amont et ceux d'aval, - différends entre deux rives d'un même canal, - conflits entre des

321

Die pharmakologische Wirkung des Ephedrins  

Microsoft Academic Search

Zusammenfassung 1.Die pharmakologische Wirkung des Ephedrins wurde zu analysieren versucht durch Studium der Beeinflussung des Blutdrucks, der Herzaktion und der Gefe, des Effekts am Atemzentrum und an den Bronchien, der Wirkung auf die Pupillenweite, auf den Darm und den Uterus, auf die Sekretion verschiedener Drsen und den Blutzuckerspiegel.2.Es wurden folgende Wirkungen gefunden: Der Blutdruck wird erhht durch kleine Dosen, erniedrigt

H. Kreitmair

1927-01-01

322

NOTE TECHNIQUE RECHERCHE DES SALMONELLA  

E-print Network

NOTE TECHNIQUE RECHERCHE DES SALMONELLA PAR IMMUNOFLUORESCENCE M. CATSARAS J. ANANI Laboratoire Salmonella, 366 prélèvements, dans 125 boucheries, pour lesquels nous avons comparé les techniques d, dus à des coliformes. Ses avantages et ses inconvénients pour la recherche des Salmonella sont

Paris-Sud XI, Université de

323

SYNTHSE DES RUNS AVEC RAPPEL  

E-print Network

SYNTH?SE DES RUNS ORCA05 AVEC RAPPEL Octobre 2009 Patrice Bellec et Thierry Huck Laboratoire de Physique des Océans (UMR 6523 CNRS IFREMER IRD UBO) #12;Sommaire DESCRIPTION DES RUNS ORCA05 ........................................................................................3 ORCA05-BPB14 : run libre de 1958 à 2008

Huck, Thierry

324

Une charte pour scuriser la pratique des stages charte des stages des tudiants en entreprise  

E-print Network

Une charte pour sécuriser la pratique des stages charte des stages des étudiants en entreprise Le 26 avril 2006, une charte, dont l'objectif est de sécuriser la pratique des stages, a été conclue parcours pédagogique. Un stage ne peut être considéré comme un emploi. Cette charte, rédigée par les

Di Girolami, Cristina

325

Historic Des Moines  

NSDL National Science Digital Library

The early 20th century was a bustling time for many cities in the Midwest, and Des Moines was no exception. During this time, the city added streetcars, built many new public schools, and welcomed thousands of new residents. This digital collection from Drake University's Cowles Library offers hundreds of images of the city from 1904 through 1914. First-time visitors should read the introductory essay by John Zeller titled "From the Real to the Ideal; Images of Des Moines in the Progressive Era." After reading this piece, visitors will have a sense of the historical context of the images in the archive and Des Moines's history during this period. Visitors can browse at their leisure, and they can also use the interactive map to wander virtually around the city. Visitors should use the map to look at some of the wonderful homes around Union Park, including the L. Aulmann residence at 1712 Pennsylvania Avenue.

2012-02-24

326

10 CFR 50.48 - Fire protection.  

Code of Federal Regulations, 2012 CFR

...do not apply to nuclear power plants licensed to operate before January...Appendix R, all nuclear power plants licensed to operate before...Standard for Fire Protection for Light Water Reactor Electric Generating Plants, 2001 Edition...

2012-01-01

327

10 CFR 50.48 - Fire protection.  

Code of Federal Regulations, 2011 CFR

...do not apply to nuclear power plants licensed to operate before January...Appendix R, all nuclear power plants licensed to operate before...Standard for Fire Protection for Light Water Reactor Electric Generating Plants, 2001 Edition...

2011-01-01

328

Conservation des Textiles  

E-print Network

Conservation des Textiles Les 22 et 23 mai 2013 Soit 2 jours - 14 heures OBJECTIFS DE LA FORMATION essentielles dans la gestion de collections textiles, depuis leur identification jusqu'à leur conservation conservation d'éléments et de collections textiles, et toutes personnes travaillant dans le domaine du

Brest, Université de

329

Therapiestrategien des fortgeschrittenen Nierenkarzinoms  

Microsoft Academic Search

Die Therapie des metastasierten Nierenkarzinoms hat in den letzten Jahren eine grundlegende Wandlung erfahren. Galt diese Entitt frher als infaust und inoperabel, so gilt mittlerweile als gesichert, dass die Tumornephrektomie auch bei metastasierten Primrtumoren als urologisch-onkologischer Standard gilt, sofern im individuellen Fall vertretbar und technisch machbar. Auch die operative Entfernung von Metastasen, sofern eine komplette Resektion mglich ist, gilt als

M. Staehler; N. Haseke; G. Schppler; T. Stadler; C. Adam; C. G. Stief

2006-01-01

330

Des Vents et des Jets Astrophysiques  

NASA Astrophysics Data System (ADS)

Plasma outflows from a central gravitating object are a widespread phenomenon in astrophysics. They include the solar and stellar winds, jets from Young Stellar Objects, jets from compact stellar objects and extra-galactic jets associated with Active Galactic Nuclei and quasars. Beyond this huge zoology, a common theoretical ground exists. The aim of this review is to present qualitatively the various theories of winds (Part 1) and how different astrophysical domains interplay. A more or less complete catalog of the ideas proposed for explaining the acceleration and the morphologies of winds and jets is intended. All this part avoids getting into any mathematical formalism. Some macroscopic properties of such outflows may be described by solving the time-independent and axisymmetric magnetohydrodynamic equations. This formalism, underlying most of the theories, is presented in Part 2. It helps to introduce quantitatively the free integrals that such systems possess. Those integrals play an important role in the basic physics of acceleration and collimation, in particular the mass loss rate, the angular momentum loss rate and the energy of the magnetic rotator. Most of the difficulty in modelling flows lies in the necessity to cross critical points, characteristic of non linear equations. The physical nature and the location of such critical points is debated because they are the clue towards the resolution. We thus introduce the notions of topology and critical points (Parts 3 and 4) from the simplest hydrodynamic and spherically symmetric case to the most sophisticated, MHD and axisymmetric cases. Particular attention is given to self-similar models which allows to give some general and simple ideas on the problem due to their semi-analytical treatment. With the use of these notions, a more quantitative comparison of the various models is given (Parts 3 and 4), especially on the shape of the flows. It is thus shown that magnetic collimation of winds into jets is a well expected result from the theory. Although, collimation may be conical, paraboloidal or cylindrical (Part 4), cylindrical collimation is the more likely to occur. The shape of outflows may then be used as a tool to predict physical conditions on the flows or on their source. L'jection continue de plasma autour d'objets massifs est un phnomne largement rpandu en astrophysique, que ce soit sous la forme du vent solaire, de vents stellaires, de jets d'toiles en formation, de jets stellaires autour d'objets compacts ou de jets extra-galactiques. Cette zoologie diversifie fait pourtant l'objet d'un commun effort de modlisation. Le but de cette revue est d'abord de prsenter qualitativement le dveloppement, depuis leur origine, des diverses thories de vents (Partie 1) et l'inter disciplinarit dans ce domaine. Il s'agit d'une numration, plus ou moins exhaustive, des ides proposes pour expliquer l'acclration et la morphologie des vents et des jets, accompagne d'une prsentation sommaire des aspects observationnels. Cette partie s'abstient de tout aspect faisant appel au formalisme mathmatique. Ces coulements peuvent tre dcrits, au moins partiellement, en rsolvant les quations magntohydrodynamiques, axisymtriques et stationnaires. Ce formalisme, la base de la plupart des thories, est expos dans la Partie 2. Il permet d'introduire quantitativement les intgrales premires qu'un tel systme possde. Ces dernires sont amenes jouer un rle important dans la comprhension des phnomnes d'acclration ou de collimation, en particulier le taux de perte de masse, le taux de perte de moment angulaire ou l'nergie du rotateur magntique. La difficult de modlisation rside dans l'existence de points critiques, propres aux quations non linaires, qu'il faut franchir. La nature physique et la localisation de ces points critiques fait l'objet d'un dbat important car ils sont la clef de voute de la rsolution. Nous introduisons donc la notion de topologie des points critiques (Parties 3 et 4

Sauty, C.

331

Groundwater Protection Program Calendar Year 1998 Evaluation of Groundwater Quality Data for the Upper East Fork Poplar Creek Hydrogeologic Regime at the U.S. Department of Energy Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

This report presents an evaluation of the water quality monitoring data obtained by the Y-12 Plant Groundwater Protection Program (GWPP) in the Upper East Fork Poplar Creek Hydrogeologic Regime (East Fork Regime) during calendar year (CY) 1998. The East Fork Regime contains many confirmed and potential sources of groundwater and surface water contamination associated with the U.S. Department of Energy (DOE) Oak Ridge Y-12 Plant. Applicable provisions of DOE Order 5400.1A - General Environmental Protection Program - require evaluation of groundwater and surface water quality near the Y-12 Plant to: (1) gauge groundwater quality in areas that are, or could be, affected by plant operations, (2) determine the quality of surface water and groundwater where contaminants are most likely to migrate beyond the DOE Oak Ridge Reservation (ORR) property line, and (3) identify and characterize long-term trends in groundwater quality at the Y-12 Plant. The following sections of this report contain relevant background information (Section 2.0); describe the results of the respective data evaluations required under DOE Order 5400.1A (Section 3.0); summarize significant findings of each evaluation (Section 4.0); and list the technical reports and regulatory documents cited for more detailed information (Section 5.0). All of the illustrations (maps and trend graphs) and data summary tables referenced in each section are presented in Appendix A and Appendix B, respectively.

None

1999-09-01

332

Pathologie vgtale Maladies des plantes dues Rhizoctonia  

E-print Network

- capacité saprophytique - fongicides - lutte - Trichoderma spp. - Thanatephorus cucu- meris Summary &mdash to improve control are discussed. soil infectivity - competitive saprothytic ability - control -Trichoderma

Paris-Sud XI, Université de

333

Police protection - protecting whom?  

Microsoft Academic Search

Police protection (Children Act 1989, s.46) is a long-established police power allowing the removal or detention of children suffering or likely to suffer significant harm. This article outlines the findings of research into its use and discusses how it is viewed by the police and social workers. It explores how the use of the power affects relationships between parents and

Judith Masson

2002-01-01

334

42nd Congress of the "Groupe Franais des Pesticides" (French Group of Pesticide research--GFP 2012) ENSIP, Poitiers, France, 30 May-1 June 2012.  

PubMed

The 42nd congress of the "Groupe Franais des Pesticides" (French Group of Pesticide research--GFP 2012) took place 30 May-1 June at the "cole Nationale Suprieure dIngnieurs de Poitiers" (ENSIP), a French generalist engineering grande cole in Poitiers. Its focus is on the protection of the environment and is part of the University of Poitiers, one of the oldest universities in Europe. GFP is an annual conference where the latest developments in the field of pesticide research are presented. The topics most commonly discussed mainly concern environmental quality, monitoring, fate, and transfer of pesticides in the environment or risks associated with use of pesticides, but every year a key theme sets the tone. For this 42nd edition, the theme "Innovative strategies for plant protection" was retained. PMID:24122160

Chollet, Jean-Franois; Couderchet, Michel; Bonnemain, Jean-Louis

2014-04-01

335

Encryption protection for communication satellites  

NASA Astrophysics Data System (ADS)

In connection with the growing importance of the commercial communication satellite systems and the introduction of new technological developments, users and operators of these systems become increasingly concerned with aspects of security. The user community is concerned with maintaining confidentiality and integrity of the information being transmitted over the satellite links, while the satellite operators are concerned about the safety of their assets in space. In response to these concerns, the commercial satellite operators are now taking steps to protect the communication information and the satellites. Thus, communication information is being protected by end-to-end encryption of the customer communication traffic. Attention is given to the selection of the NBS DES algorithm, the command protection systems, and the communication protection systems.

Sood, D. R.; Hoernig, O. W., Jr.

336

Novel Lipid-Soluble Thiol-Redox Antioxidant and Heavy Metal Chelator, N,N?-bis(2-Mercaptoethyl)Isophthalamide (NBMI) and Phospholipase D-Specific Inhibitor, 5-Fluoro-2-Indolyl Des-Chlorohalopemide (FIPI) Attenuate Mercury-Induced Lipid Signaling Leading to Protection Against Cytotoxicity in Aortic Endothelial Cells  

PubMed Central

Here, we investigated thiol-redox-mediated phospholipase D (PLD) signaling as a mechanism of mercury cytotoxicity in mouse aortic endothelial cell (MAEC) in vitro model utilizing the novel lipid-soluble thiol-redox antioxidant and heavy metal chelator, N,N?-bis(2-mercaptoethyl)isophthalamide (NBMI) and the novel PLD-specific inhibitor, 5-fluoro-2-indolyl des-chlorohalopemide (FIPI). Our results demonstrated (i) mercury in the form of mercury(II) chloride, methylmercury, and thimerosal induced PLD activation in a dose- and time-dependent manner; (ii) NBMI and FIPI completely attenuated mercury- and oxidant-induced PLD activation; (iii) mercury induced upstream phosphorylation of extracellular-regulated kinase 1/2 (ERK1/2) leading to downstream threonine phosphorylation of PLD1 which was attenuated by NBMI; (iv) mercury caused loss of intracellular glutathione which was restored by NBMI; and (v) NBMI and FIPI attenuated mercury- and oxidant-induced cytotoxicity in MAECs. For the first time, this study demonstrated that redox-dependent and PLD-mediated bioactive lipid signaling was involved in mercury-induced vascular EC cytotoxicity which was protected by NBMI and FIPI. PMID:21994240

Secor, Jordan D.; Kotha, Sainath R.; Gurney, Travis O.; Patel, Rishi B.; Kefauver, Nicholas R.; Gupta, Niladri; Morris, Andrew J.; Haley, Boyd E.; Parinandi, Narasimham L.

2012-01-01

337

Expos de synthse Etude immunochimique des molcules du CMH des  

E-print Network

Exposé de synthèse Etude immunochimique des molécules du CMH des bovins (BoLA) D. Levy, J'histocompatibilité - réunion scientifique - structure - fonction Bovine CMH (BoLA) molecules : immunochemical study major'histocom- patibilité (CMH) des bovins (BOLA) pré- sente un triple intérêt : - sur le plan économique, les bovins

Boyer, Edmond

338

Apprendre dialoguer avec des lves : le cas des dialogues philosophiques  

E-print Network

.*, & Daniel, M.-F. (2009). Apprendre à dialoguer > avec des élèves : le cas des dialogues philosophiques Daniel Laboratoire P.A.E.D.I. Iufm d'Auvergne, JE2432 & Laboratoire de psychologie cognitive et clinique maître qu'aux élèves ? Du côté du maître, existe-t-il des gestes professionnels susceptibles d'amener

Paris-Sud XI, Université de

339

charnues, des sauges, et des cosmos peine sor-  

E-print Network

°39 L'hebdo de l'?cole normale supérieure NOUVELLES DES SERVICES ELLES se nomment Lili Marlen, Queen'esprit de l'as- sidu du snack vers des nourritures moins terrestres, distraire le candidat au concours de des savoirs [cf. normale sup' info n°4] qui a pour vocation de mettre à la disposition de tous les

Gutkin, Boris

340

UNIVERSIT DE MONTRAL Facult des arts et des sciences  

E-print Network

UNIVERSIT? DE MONTR?AL Faculté des arts et des sciences Département d'informatique et de recherche'étudiant :_____________________________________________________________ (en caractère d'imprimerie) Code permanent : ________________________________________ Programme : M.Sc. Maîtrise (2-175-1-0) Informatique Ph.D. Doctorat (3-175-1-0) Informatique Trimestre/Année du début des

Montréal, Université de

341

BRUCELLOSE BOVINE EXPRIMENTALE COMPARAISON DE L'EFFICACIT DES VACCINS B I9 ET H 38  

E-print Network

BRUCELLOSE BOVINE EXP?RIMENTALE I. COMPARAISON DE L'EFFICACIT? DES VACCINS B I9 ET H 38 M colostrum, du lait et des ganglions et organes pré- levés à l'abattage, six semaines après le part, ont efficacité pratique chez les bovins. Cependant, « la protection conférée par la vaccination avec la souche 19

Paris-Sud XI, Université de

342

Die Theorie des Radikalen Konstruktivismus im Kommunikationsmodell des NLP.  

E-print Network

??Der Radikale Konstruktivismus setzt sich mit dem Verhltnis von Wissen und Wirklichkeit auseinander. In der Theorie des Radikalen Konstruktivismus ist die Wirklichkeit keine objektive Voraussetzung, (more)

Brezna, Christa

2009-01-01

343

Die Kommerzialisierung des Kinderfernsehens unter besonderer Bercksichtigung des Merchandising.  

E-print Network

??Die vorliegende Arbeit thematisiert die Kommerzialisierungsentwicklungen im Kinderfernsehprogramm im deutschsprachigen Raum unter besonderer Bercksichtigung der Praxis des Merchandising. Die Beobachtung, dass uns Figuren aus dem (more)

Nigl, Andrea

2009-01-01

344

Les protines des corps d'inclusion des Baculovirus  

Microsoft Academic Search

Rsum頠La comparaison des granules ou des protines de granules desBaculovirus dePieris brassicae, Pygaera anastomosis, Hyphantria cunea, Carpocapsa pomonella, Mythimna unipuncta, Mamestra oleracea a t entreprise par les techniques d'lectrophorse, d'agglutination, d'immunofluorescence et de prcipitation en gel. L'lectrophorse\\u000a fait apparatre l'troite ressemblance qui existe entre les protines des six sortes de corps d'inclusion. L'analyse immunochimique\\u000a montre que chaque granule est bien

G. Croizier; G. Meynadier

1973-01-01

345

agronomie: plant genetics and breeding Micropropagation of walnut trees (Juglans regia L) and  

E-print Network

of micropropagated walnut trees improved post-acclimatization growth in greenhouse conditions. Inoculation�sum� Micropropagation du noyer (Juglans regia L) et effet de l'inoculation avec des champignons'�longation des racines a eu un effet sur le nombre de racines form�es et sur le sevrage des plantes. La

Paris-Sud XI, Université de

346

Reviewmpp_804 614..629 Top 10 plant pathogenic bacteria in molecular plant pathology  

E-print Network

plant bacteriologists, if not all, feel that their particular microbe should appear in any listReviewmpp_804 614..629 Top 10 plant pathogenic bacteria in molecular plant pathology JOHN MANSFIELD, Laboratoire des Interactions Plantes-Microorganismes (LIPM), UMR 441-2594, F-31326 Castanet Tolosan, France 3

Citovsky, Vitaly

347

DEVELOPMENT OF A MULTI-TIERED INSECT RESISTANCE MANAGEMENT PROGRAM FOR GENETICALLY MODIFIED CORN HYBRIDS EXPRESSING THE PLANT INCORPORATED PROTECTANT, BACILLUS THURINGIENSIS  

EPA Science Inventory

A significant increase in genetically modified corn planting driven by biofuel demand is expected for the 2007 growing season with future planted acreages approaching 80% of total corn plantings anticipated by 2009. As demand increases, incidence of farmer non-compliance with ma...

348

Programmation des activits pdagogiques  

E-print Network

Programmation des activités pédagogiques B.Sc. Biochimie de la santé Version 9 S'adresse aux 411 *Enzymologie de la cellule humaine (BCM 318).....................2 BCM 420 *Bio-informatique (BCL dans le programme. 22 mai 2014 Activités pédagogiques à option (16 crédits) Automne CHM 400 Biochimie

Spino, Claude

349

ORGANISATION DES ETUDES La licence professionnelle Gestion des  

E-print Network

: · coordinateur(trice) du Personnel. · assistant(e) Ressources Humaines. · assistant(e) gestion du personnel. · gestionnaire de paie / collaborateur (trice) de paie. I U T La licence professionnelle forme des coordinateurs/trices, projets RH, ...). Licence Professionnelle Gestion des ressources humaines Spécialité Coordinateur/trice du

Pellier, Damien

350

RACTIONS DES POPULATIONS ANIMALES ET MICROBIENNES DU SOL A LA PRIVATION DES APPORTS ANNUELS DE LITIRE  

E-print Network

1 R?ACTIONS DES POPULATIONS ANIMALES ET MICROBIENNES DU SOL A LA PRIVATION DES APPORTS ANNUELS DE entraînera des désordres au sein des populations animales et microbiennes et donc retentira sur la structure des friches nitrophiles. Secondairement ce phénomène va retentir sur les populations animales et

Paris-Sud XI, Université de

351

10 CFR 76.7 - Employee protection.  

...Employee protection. 76.7 Section 76.7 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS General Provisions 76.7 Employee protection. (a) Discrimination by the Corporation, a...

2014-01-01

352

10 CFR 76.7 - Employee protection.  

Code of Federal Regulations, 2010 CFR

...Employee protection. 76.7 Section 76.7 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS General Provisions 76.7 Employee protection. (a) Discrimination by the Corporation, a...

2010-01-01

353

10 CFR 76.7 - Employee protection.  

Code of Federal Regulations, 2011 CFR

...Employee protection. 76.7 Section 76.7 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS General Provisions 76.7 Employee protection. (a) Discrimination by the Corporation, a...

2011-01-01

354

10 CFR 76.7 - Employee protection.  

Code of Federal Regulations, 2012 CFR

...Employee protection. 76.7 Section 76.7 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS General Provisions 76.7 Employee protection. (a) Discrimination by the Corporation, a...

2012-01-01

355

10 CFR 76.7 - Employee protection.  

Code of Federal Regulations, 2013 CFR

...Employee protection. 76.7 Section 76.7 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS General Provisions 76.7 Employee protection. (a) Discrimination by the Corporation, a...

2013-01-01

356

Expression of two insect-resistant genes cryIA (b&c)\\/GNA in transgenic tobacco plants results in added protection against both cotton bollworm and aphids  

Microsoft Academic Search

The synthesizedBacillus thuringiensis insecticidal protein gene cryIA(b&c) and the synthesized geneGNA, (the mannose specific lectin from snowdrop (Galanthus nivalis)), tumefaciens have been inserted into plant expression vector pGW4BAI. Leave stripes ofNicotiana tabacum var. K326 have been transformed withAgrobacterium tumefaciens strain LBA4404 harboring the plant expression vector. 28 kanamycin resistant tobacco plants have been obtained. PCR and Southern\\u000a blot analyses show

Zhibin Wang; Sandui Guo

1999-01-01

357

Mensch, Kepler! von Studierenden des  

E-print Network

Mensch, Kepler! von Studierenden des Europaeum und des Lehrstuhls für Vergleichende.europaeum.de vom 10.05. bis 05.10. im Kepler Gedächtnishaus Regensburg Alt bekannt neu entdeckt Mensch, Kepler,wieso bist du überallbekannt? Mensch, Kepler, hattest du eigentlich Kinder? Mensch, Kepler, wie hast du das

Schubart, Christoph

358

LABORATOIRE DE PHYSIQUE DES SOLIDES  

E-print Network

LABORATOIRE DE PHYSIQUE DES SOLIDES UMR 8502 Centre Universitaire, Bât. 510 91405 Orsay cedex) 212503. #12;LABORATOIRE DE PHYSIQUE DES SOLIDES UMR 8502 Centre Universitaire, Bât. 510 91405 Orsay cedex fundamental fine particle magnetism utilizing colloidal dispersions or ferrofluids as the medium for study

Paris-Sud 11, Université de

359

ber die Rotationswrme des Wasserstoffs  

Microsoft Academic Search

Zusammenfassung Die neuere Entwicklung der Bandentheorie macht bei zweiatomigen Moleklen ein Elektronenimpulsmoment 1\\/2 senkrecht zur Kernverbindungslinie wahrscheinlich. Der Einflu hiervon auf die Theorie der Rotationswrme besteht hauptschlich darin, das berechnete Trgheitsmoment des Molekls auf 2\\/3 des frheren Wertes herabzudrcken, das ist auf 1,4. 10-41 beim Wasserstoff, was zu anderweitigen Schtzungen (Konstante der Dampfdruckformel, Viellinienspektrum) besser stimmt.

Erwin Schrdinger

1924-01-01

360

Mycobacterium tuberculosis Des Protein: an Immunodominant Target for the Humoral Response of Tuberculous Patients  

Microsoft Academic Search

The phoA gene fusion methodology permitted the identification of a new Mycobacterium tuberculosis exported protein, Des. This protein has significant sequence similarities to plant acyl-acyl carrier protein desaturases, which are enzymes involved in general fatty acid biosynthesis as well as in mycolic acid biosynthesis in mycobacteria. As shown by Western blot and enzyme-linked immunosorbent assay experiments, the Des protein is

MARY JACKSON; DENIS PORTNOI; DANIEL CATHELINE; LAURE DUMAIL; JEAN RAUZIER; PHILIPPE LEGRAND; BRIGITTE GICQUEL

1997-01-01

361

Le microscope des mathmaticiens Tribune du Net  

E-print Network

Le microscope des mathématiciens Tribune du Net Guillaume Theyssier Laboratoire de Mathématiques chercheur TIC = Technologies de l'Information et de la Communication 2 ordinateur : le microscope des des articles : web Démonstration... #12;Ordinateur : Le microscope des mathématiciens Rappels

Theyssier, Guillaume

362

CHRONIQUE: RGLEMENT ALTERNATIF DES CONFLITS Note prliminaire  

E-print Network

CHRONIQUE: R�GLEMENT ALTERNATIF DES CONFLITS Note pr�liminaire Les m�thodes alternatives de r�glement des conflits sont de plus en plus jug�es int�ressantes tant pour les justiciables que pour le syst�judiciaris� des conflits�. Ce forum, multidisciplinaire, regroupait des participants provenant du droit, de la

Spino, Claude

363

Die cortinhnliche Wirkung des g-Strophanthins  

Microsoft Academic Search

An normalen Kaninchen bewirkten hhere Dosen des Strophanthins eine Steigerung des Blutchlorid-, Natrium- und Zuckerspiegels und eine Erniedrigung der Plasmakaliumkonzentration. An normalen Hunden wird der Chlorid- und Natriumgehalt des Blutes auf Strophanthin erhht, der Kaliumgehalt des Plasmas gesenkt. Die mit dem Harn ausgeschiedenen Natriummengen sanken nach Strophanthinbehandlung ab und gleichzeitig nahm die Kaliumausscheidung stark zu. Im Lichte dieser auf den

E. Varga; D. Bagdy; L. Kesztys

1949-01-01

364

NEUROMARKETING ET NEUROSCIENCES AU SERVICE DES PUBLICITAIRES  

E-print Network

1 NEUROMARKETING ET NEUROSCIENCES AU SERVICE DES PUBLICITAIRES : QUESTIONNEMENTS ETHIQUES Didier neuromarketing et des neurosciences au service des publicitaires soulève immanquablement des questions éthiques débats éthiques entre les personnes adeptes du neuromarketing (les "pro-neuromarketing") et les "anti-neuromarketing

Paris-Sud XI, Université de

365

Service social des tudiants Les Assistantes Sociales  

E-print Network

Service social des étudiants Les Assistantes Sociales : * vous informent sur la vie à l'Université et ses conditions matérielles : bourses, logement, budget, prêt, législation sociale social * effectuent, avec votre accord, des interventions, des liaisons auprès des organismes (CROUS

Di Girolami, Cristina

366

Toxicity assessment strategies, data requirements, and risk assessment approaches to derive health based guidance values for non-relevant metabolites of plant protection products.  

PubMed

In Europe, limits for tolerable concentrations of "non-relevant metabolites" for active ingredients (AI) of plant protection products in drinking water between 0.1 and 10 microg/L are discussed depending on the toxicological information available. "Non-relevant metabolites" are degradation products of AIs, which do not or only partially retain the targeted toxicities of AIs. For "non-relevant metabolites" without genotoxicity (to be confirmed by testing in vitro), the application of the concept of "thresholds of toxicological concern" results in a health-based drinking water limit of 4.5 microg/L even for Cramer class III compounds, using the TTC threshold of 90 microg/person/day (divided by 10 and 2). Taking into account the thresholds derived from two reproduction toxicity data bases a drinking water limit of 3.0 microg/L is proposed. Therefore, for "non-relevant metabolites" whose drinking water concentration is below 3.0 microg/L, no toxicity testing is necessary. This work develops a toxicity assessment strategy as a basis to delineate health-based limits for "non-relevant metabolites" in ground and drinking water. Toxicological testing is recommended to investigate, whether the metabolites are relevant or not, based on the hazard properties of the parent AIs, as outlined in the SANCO Guidance document. Also, genotoxicity testing of the water metabolites is clearly recommended. In this publication, tiered testing strategies are proposed for non-relevant metabolites, when drinking water concentrations >3.0 microg/L will occur. Conclusions based on structure-activity relationships and the detailed toxicity database on the parent AI should be included. When testing in animals is required for risk assessment, key aspects are studies along OECD-testing guidelines with "enhanced" study designs addressing additional endpoints such as reproductive toxicity and a developmental screening test to derive health-based tolerable drinking water limits with a limited number of animals. The testing strategies are similar to those used in the initial hazard assessment of high production volume (HPV) chemicals. For "non-relevant metabolites" which are also formed as products of the biotransformation of the parent AI in mammals, the proposed toxicity testing strategies uses the repeat-dose oral toxicity study combined with a reproductive/developmental screening as outlined in OECD test guidelines 407 and 422 with integration of determination of hormonal activities. For "non-relevant metabolites" not formed during biotransformation of the AI in mammals, the strategy relies on an "enhanced" 90-day oral study covering additional endpoints regarding hormonal effects and male and female fertility in combination with a prenatal developmental toxicity study (OECD test guideline 414). The integration of the results of these studies into the risk assessment process applies large minimal margins of exposure (MOEs) to compensate for the shorter duration of the studies. The results of the targeted toxicity testing will provide a science basis for setting tolerable drinking water limits for "non-relevant metabolites" based on their toxicology. Based on the recommendations given in the SANCO guidance document and the work described in this and the accompanying paper, a concise re-evaluation of the Guidance document is proposed. PMID:19883711

Dekant, Wolfgang; Melching-Kollmuss, Stephanie; Kalberlah, Fritz

2010-03-01

367

Sun protection  

MedlinePLUS

... age spots, are caused by exposure to the sun. The two types of sun rays that can injure the skin are ultraviolet ... changes is to protect your skin from the sun. This includes using sunscreen and other protective measures. ...

368

Des Moines Water Works  

NSDL National Science Digital Library

Users can access information about educational programs and materials for teachers and students, including tours, traveling exhibits and presentations by the staff of the Des Moines Water Works. "Water Trunks", which contain water-related literature, books, science experiments, videos, games, CD-ROMs, hands-on activities, picture cards, career information, and a teacher resource book, are available to order. There are also links to other water websites, a teachers' newsletter and pollution prevention tips for classroom use and for the general public.

2001-01-01

369

Protective Measurements  

E-print Network

A review of protective measurements. Protective measurement is a method for measuring an expectation value of an observable on a single quantum system. The quantum state of the system can be protected by a potential, when the state is a nondegenerate energy eigenstate with a known gap to neighboring states, or via Zeno effect by frequent projection measurements.

L. Vaidman

2008-01-17

370

Fire Protection Materials  

NASA Technical Reports Server (NTRS)

Avco has drawn upon its heat shield experience to develop a number of widely-accepted commercial fire protection materials. Originating from NASA's space shuttle thermal protection system, one such material is Chartek 59 fireproofing, an intumescent epoxy coating specifically designed for outdoor use by industrial facilities dealing with highly flammable products such as oil refineries and chemical plants. The coating is applied usually by spray gun to exterior structural steel conduits, pipes and valves, offshore platforms and liquefied petroleum gas tanks. Fireproofing provides two types of protection: ablation or dissipation of heat by burn-off and "intumescence" or swelling; the coating swells to about five times its original size, forming a protective blanket of char which retards transfer of heat to the metal structure preventing loss of structural strength and possible collapse which would compound the fire fighting problem.

1980-01-01

371

Fiabilit des structures mcaniques adaptatives: effet de la panne des actionneurs ou des capteurs sur la stabilit  

NASA Astrophysics Data System (ADS)

Ces dernires dcennies, des activits significatives dans le monde taient diriges autour du contrle actif. Le but de ces recherches tait essentiellement d'amliorer les performances, la fiabilit et la scurit des systmes. Notamment dans le cas des structures soumises des vibrations alatoires. D'importants travaux ont t consacr l'utilisation des matriaux intelligents comme capteurs et actionneurs. Cette article propose l'analyse de la fiabilit des systmes mcaniques en tudiant les pannes des actionneurs ou des capteurs. L'effet de ces pannes sur la stabilit et la performance du systme y est dmontr. Les mthodologies de conception y sont rappeles. Des exemples numriques sont fournis travers le contrle d'un panneau sous chargement dynamique pour illustrer la mthode propose.

Fall, H.; Charon, W.; Kouta, R.

2002-12-01

372

Introduction to DES Overview of the DES Algorithm  

E-print Network

Encryption Standard (DES) encrypts blocks of size 64 bit. � Developed by IBM based on the cipher Lucifer;! The Permutation P 4.Permutation P � Bitwise permutation. � Introduces diffusion. � Output bits of one S-Box effect

373

Reu: juin 1999; Accept: octobre 2000 tude et Gestion des Sols, 7, 4, 2000 -numro spcial -pages 261 270 P. Cadet(1), J.-F. Bois(2), J.-L. Chotte(1), R. Duponnois(1), ND. N'Diaye-Faye(3), Ch. Floret(4),  

E-print Network

des sols a été entreprise dans les systèmes de culture soudano-sahéliens au Sénégal. Les parcelles culture des parcelles de jachère provoque des changements très rapides, qui conduisent à la disparition de phytoparasites, facteurs abiotiques, Pasteuria, mycorhizes. SUMMARY MANAGEMENT OF PLANT PARASITIC NEMATODE

Thioulouse, Jean

374

BOURSE MUSODOC Facult des arts et des sciences  

E-print Network

BOURSE MUS?ODOC Faculté des arts et des sciences Doctorat La bourse Muséodoc est offerte chaque muséologie. La bourse vise à encourager le développement et la réalisation de projets de recherche créatifs candidature plusieurs années de suite. Toutefois, la bourse ne peut être attribuée qu'une seule fois à la même

Parrott, Lael

375

Caractrisation des systmesCaractrisation des systmes industriels  

E-print Network

Chapitre 3 Caractérisation des systèmesCaractérisation des systèmes industriels Aymeric Histace 1 Plan 1. Performances d'un système industriel 2. Etude temporelle 3. Etude fréquentielleq Aymeric comment concrètement les prévoir ou les mesurer pratiquement pour un système industriel donné. Aymeric

Histace, Aymeric

376

L'IMPLANTATION DES DIFICES CULTUELS DES TMOINS DE  

E-print Network

), Oyonnax, Rodez, Montceau-les-Mines, Bruay-en-Artois (Pas-de-Calais). Le mouvement des ?tudiants de la dans le prosélytisme en France. Mais le russellisme s'est tout de même développé dans le Nord-Pas-de-Calais. Russell attribuait ce fait à l'influence « néfaste » des catholiques et il n'investissait pas beaucoup

Paris-Sud XI, Université de

377

Des-acyl ghrelin fragments and analogues promote survival of pancreatic ?-cells and human pancreatic islets and prevent diabetes in streptozotocin-treated rats.  

PubMed

Des-acyl ghrelin, although devoid of binding to ghrelin receptor (GRLN), exerts many biological effects, including regulation of glucose and lipid metabolism. Indeed, des-acyl ghrelin promotes pancreatic ?-cell and human islet cell survival and prevents diabetes in streptozotocin (STZ) treated rats. We investigated whether des-acyl ghrelin fragments excluding serine(3), which is essential for binding to GRLN, would display similar actions. Among the different compounds tested, des-acyl ghrelin((6-13)) and des-acyl ghrelin((6-13)) with alanine substitutions or cyclization, but not with d-amino acid substitutions, showed the best survival effect, similar to des-acyl ghrelin. Des-acyl ghrelin((6-13)) even prevented diabetes in STZ-treated rats and protected human circulating angiogenic cells from oxidative stress and senescence, similar to des-acyl ghrelin. These results suggest that not only full-length des-acyl ghrelin but also short des-acyl ghrelin fragments have clear beneficial effects on several tissues in vitro and in vivo. PMID:22352743

Granata, Riccarda; Settanni, Fabio; Julien, Michel; Nano, Rita; Togliatto, Gabriele; Trombetta, Antonella; Gallo, Davide; Piemonti, Lorenzo; Brizzi, Maria Felice; Abribat, Thierry; van Der Lely, Aart-Jan; Ghigo, Ezio

2012-03-22

378

The antagonistic strain Bacillus subtilis?UMAF6639 also confers protection to melon plants against cucurbit powdery mildew by activation of jasmonate- and salicylic acid-dependent defence responses.  

PubMed

Biological control of plant diseases has gained acceptance in recent years. Bacillus subtilis?UMAF6639 is an antagonistic strain specifically selected for the efficient control of the cucurbit powdery mildew fungus Podosphaera fusca, which is a major threat to cucurbits worldwide. The antagonistic activity relies on the production of the antifungal compounds iturin and fengycin. In a previous study, we found that UMAF6639 was able to induce systemic resistance (ISR) in melon and provide additional protection against powdery mildew. In the present work, we further investigated in detail this second mechanism of biocontrol by UMAF6639. First, we examined the signalling pathways elicited by UMAF6639 in melon plants, as well as the defence mechanisms activated in response to P.?fusca. Second, we analysed the role of the lipopeptides produced by UMAF6639 as potential determinants for ISR activation. Our results demonstrated that UMAF6639 confers protection against cucurbit powdery mildew by activation of jasmonate- and salicylic acid-dependent defence responses, which include the production of reactive oxygen species and cell wall reinforcement. We also showed that surfactin lipopeptide is a major determinant for stimulation of the immune response. These results reinforce the biotechnological potential of UMAF6639 as a biological control agent. PMID:23302493

Garca-Gutirrez, Laura; Zeriouh, Houda; Romero, Diego; Cubero, Jaime; de Vicente, Antonio; Prez-Garca, Alejandro

2013-05-01

379

Titel des Moduls: Schallmesstechnik und  

E-print Network

Titel des Moduls: Schallmesstechnik und Signalverarbeitung (Measurement Technique and Signal. Fortgeschrittene" und/oder mit Modulen TA 2 und TA 6 "Noise and Vibration Control", "Advanced Noise and Vibration

Berlin,Technische Universität

380

76 FR 28819 - NUREG/CR-XXXX, Development of Quantitative Software Reliability Models for Digital Protection...  

Federal Register 2010, 2011, 2012, 2013

...Digital Protection Systems of Nuclear Power Plants Draft Report for Comment...Digital Protection Systems of Nuclear Power Plants, Draft Report for Comment...systems in the licensing actions of nuclear power plants (NPPs). The...

2011-05-18

381

Vecteurs Singuliers des Theories des Champs Conformes Minimales  

NASA Astrophysics Data System (ADS)

En 1984 Belavin, Polyakov et Zamolodchikov revolutionnent la theorie des champs en explicitant une nouvelle gamme de theories, les theories quantiques des champs bidimensionnelles invariantes sous les transformations conformes. L'algebre des transformations conformes de l'espace-temps presente une caracteristique remarquable: en deux dimensions elle possede un nombre infini de generateurs. Cette propriete impose de telles conditions aux fonctions de correlations qu'il est possible de les evaluer sans aucune approximation. Les champs des theories conformes appartiennent a des representations de plus haut poids de l'algebre de Virasoro, une extension centrale de l'algebre conforme du plan. Ces representations sont etiquetees par h, le poids conforme de leur vecteur de plus haut poids, et par la charge centrale c, le facteur de l'extension centrale, commune a toutes les representations d'une meme theorie. Les theories conformes minimales sont constituees d'un nombre fini de representations. Parmi celles-ci se trouvent des theories unitaires dont les representation forment la serie discrete de l'algebre de Virasoro; leur poids h a la forme h_{p,q}(m)=[ (p(m+1) -qm)^2-1] (4m(m+1)), ou p,q et m sont des entiers positifs et p+q<= m+1. L'entier m parametrise la charge centrale: c(m)=1 -{6over m(m+1)} avec n>= 2. Ces representations possedent un sous-espace invariant engendre par deux sous-representations avec h_1=h_{p,q} + pq et h_2=h_{p,q} + (m-p)(m+1-q) dont chacun des vecteurs de plus haut poids portent le nom de vecteur singulier et sont notes respectivement |Psi _{p,q}> et |Psi_{m-p,m+1-q}>. . Les theories super-conformes sont une version super-symetrique des theories conformes. Leurs champs appartiennent a des representation de plus haut poids de l'algebre de Neveu-Schwarz, une des deux extensions super -symetriques de l'algebre de Virasoro. Les theories super -conformes minimales possedent la meme structure que les theories conformes minimales. Les representations sont elements de la serie h_{p,q}= [ (p(m+2)-qm)^2-4] /(8m(m+2)) ou p,q et m sont des entiers positifs, p et q etant de meme parite, et p+q<= m+2. La charge centrale est donnee par c(m)={3over 2}-{12over m(m+2)} avec m >= 2. Les vecteurs singuliers | Psi_{p,q}> et |Psi_{m-p,m+2-q} > sont respectivement de poids h _{p,q}+pq/2 et h_ {p,q}+(m-p)(m+2-q)/2.. Les vecteurs singuliers ont une norme nulle et on doit les eliminer des representations pour que celles -ci soient unitaires. Cette elimination engendrent des equations (super-)differentielles qui dependent directement de la forme explicite des vecteurs singuliers et auxquelles doivent obeir les fonctions de correlations de la theorie. Ainsi la connaissance de ces vecteurs singuliers est intimement reliee au calcul des fonctions de correlation. Les equations definissant les vecteurs singuliers forment un systeme lineaire surdetermine dont le nombre d'equations est de l'ordre de N(pq), le nombre de partitions de l'entier pq. Puisque les vecteurs singuliers jouent un role capital en theorie conforme, il est naturel de chercher des formes explicites pour les vecteurs (ou pour des familles infinies de ceux -ci). Nous donnons ici la forme explicite pour la famille infinie de vecteurs singuliers ayant un de ses indices egal a 1, pour les algebres de Virasoro et de Neveu-Schwarz. Depuis ces decouvertes, d'autres techniques de construction des vecteurs singuliers ont ete developpees, dont celle de Bauer, Di Francesco, Itzykson et Zuber pour l'algebre de Virasoro qui reproduit directement l'expression explicite des vecteurs singuliers |Psi _{1,q}> et |Psi_{p,1}>. Ils ont utilise l'algebre des produits d'operateurs et la fusion entre representations irreductibles pour engendrer des relations de recurence produisant les vecteurs singuliers. Dans le dernier chapitre de cette these nous adaptons cet algorithme a la construction des vecteurs singuliers de l'algebre de Neveu-Schwarz.

Benoit, Louis

382

Note technique Rgionalisation des scnarios  

E-print Network

dépasser les 35 °C selon les données fournies par notre scénario. Mots clés : cataclysme ; climat ; effet: climate; environment monitoring; France; greenhouse effect; models, theoratical; natural disasters Les de concentration des gaz à effet de serre et des aérosols pour le XXIE siècle [1]. Ces scénarios sont

Ribes, Aurélien

383

Insider protection  

SciTech Connect

The government community is broadly addressing the insider threat. The first section of this paper defines protection approaches and the latter sections present various applicable technology developments. The bulk of the paper discusses technology developments applied to (1) personnel and material tracking and inventory, (2) classified document protection, and (3) protecting security systems. The personnel and material tracking system uses a PC based-host to (1) collect information from proximity tags and material movement sensors, (2) apply rules to this input to assure that the ongoing activity meets the site selectable rules and, (3) forward the results to either an automated inventory system or an alarm system. The document protection system uses a PC network to efficiently and securely control classified material which is stored on write-once-read-mostly optical media. The protection of sensor to multiplexer communications in a security system is emphasized in the discussion of protecting security systems.

Waddoups, I.G.

1993-07-01

384

Side effects of grain protectants on biological control agents: How Hyptis plant extracts affect parasitism and larval development of Dinarmus basalis  

Microsoft Academic Search

Dinarmus basalis Rondani (Hymenoptera: Pteromalidae), an ectoparasitoid of bruchid pests of stored cowpeas (Vigna unguiculata), is a potential biological control agent. We investigated whether grain protectants from Hyptis spicigera and H. suaveolens (Lamiaceae) disturb parasitism and post-embryonic growth of the parasitoid. When cowpeas containing bruchid larvae were treated\\u000a before being placed in the presence of D. basalis females, the rate

A. Sanon; M. N. Ba; L. C. B. Dabir; R. C. H. Nbi; J. P. Monge

2011-01-01

385

Operational experience and performance characteristics of a valve-regulated lead-acid battery energy-storage system for providing the customer with critical load protection and energy-management benefits at a lead-recycling plant  

NASA Astrophysics Data System (ADS)

The Power Control Division of GNB Technologies, commissioned on May 13, 1996 a new facility which houses a 5-MW battery energy-storage system (BESS) at GNB's Lead Recycling Centre in Vernon, CA. When the plant loses utility power (which typically happens two or three times a year), the BESS will provide up to 5 MW of power at 4160 VAC in support of all the plant loads. Since the critical loads are not isolated, it is necessary to carry the entire plant load (maximum of 5 MVA) for a short period immediately following an incident until non-critical loads have been automatically shed. Plant loading typically peaks at 3.5 MVA with critical loads of about 2.1 MVA. The BESS also provides the manufacturing plant with customer-side-of-the-meter energy management options to reduce its energy demand during peak periods of the day. The BESS has provided a reduction in monthly electric bills through daily peak-shaving. By design, the battery can provide up to 2.5 MWh of energy and still retain 2.5 MWh of capacity in reserve to handle the possibility of a power outage in protecting the critical loads for up to 1 h. By storing energy from the utility during off-peak hours of the night in the batteries when the cost is low (US4.5 per kWh), GNB can then discharge this energy during high demand periods of the day (US14.50 per kW). For example, by reducing its peak demand by 300 kW, the lead-recycling centre can save over US4000 per month in its electric bills. The BESS at Vernon represents a first large-scale use of valve-regulated lead-acid batteries in such a demanding application. This paper presents a summary of the operational experience and performance characteristics of the BESS over the past 2 years.

Hunt, G. W.

386

Nature's protection against nature's fury: a post tsunami assessment of non-mangrove plants as elements to build a green belt against tsunami  

Microsoft Academic Search

Tsunami affected areas of the east, south and west coasts of Sri Lanka were visited three times as 14 days, 44 days and 134 days after the tsunami that hit the country on 26th December, 2004 and examined non mangrove areas of the coasts for the damages on the vegetation. Based on physical and\\/or physiological damages, plants were placed into

L. P. Jayatissa; S. Hettiarachi

387

Altration des sulfures des granulats dans les chausses  

NASA Astrophysics Data System (ADS)

Sulfides present in hornsfeld aggregates, used in light pavanent construction in contact with humid air alter rapidly. Crystallisation of sulfates at the interface of bitumastic material and sub-base creates serious problems (intumescence and crazing) that can lead to a total reconstruction of the project (roads, sidewalks, sports areas, etc). The sulfides in the aggregates and the sulfates produced due to alteration are studied by SEM and XRD. The results show that the intensity of this phenomenon is linked to the nature and the crystallinity of the sulfides. The evolution of the sulfates formed during this alteration process is slow and complex. In new pavements (3 years) the sulfates have a pulverised appearance and consist mostly of epsomite, associated with pickeringite and halotrichite. In older pavements (20 years) the sulfates form a fibrous concretion consisting of pickeringite and small quantities of halotrichite. Les sulfures prsents dans les granulats labors partir de cornen nes s'altrent rapidement dans les chausses lgres en prsence d'air humide. La cristallisation des sulfates l'interface enrob-couche de fondation cre des dsordres si importants (intumescences, faienage) qu'il est bien souvent ncessaire d'assurer la rfection totale des ouvrages (routes, trottoirs, plateaux sportifs...). Les sulfures des granulats et les sulfates issus du processus d'altration ont t tudis par diffractomtrie X et examen su Microscope Electronique Balayage quip de microanalyse X. Les rsultats montrent que !intensit des dsordres est lie la nature et la cristallinit des sulfures. Les sulfates forms voluent su cours du processus d'altration qui est long et complexe. Dans les chausses rcentes (3 ans) ils ont un aspect pulvrulent et sont constitus d'epsomite dominante associe de la pickeringite et de l'halotrichite. Dans les chausses plus anciennes (20 ans) ils forment des concrtions fibreuses constitues de pickeringite et d'une faible quantit d'halotrichite.

Jigorel, A.; Jauberthie, R.

2002-07-01

388

Le mode d'action des nmaticides non-fumigants Alain CAVELIER  

E-print Network

certains nématodes. L'implication de ces données dans le raisonnement de la protection des cultures contre been compiled to give a view of the activity of the toxicants on successive stages in nematode the inhibition of hatching of first-stage larvae to blocking of nematode development inside the roots, and varies

Paris-Sud XI, Université de

389

Experimental Testing of the Gigabit IPSec-Compliant Implementations of Rijndael and Triple DES Using  

E-print Network

Experimental Testing of the Gigabit IPSec-Compliant Implementations of Rijndael and Triple DES of the first phase of a project aimed at implementing a full suite of IPSec cryptographic transformations% of the area. 1. Introduction IPSec is a set of protocols for protecting communication through the Internet

Gaj, Krzysztof

390

ANALYSE DES DETERMINANTS DE LA GESTION DES RESULTATS : CAS DES FIRMES CANADIENNES FRANCAISES ET TUNISIENNES  

Microsoft Academic Search

L'objectif de cet article est d'analyser l'impact des dterminants de la gestion des rsultats en rfrence aux modles comptables Anglo-amricain et Euro-continental. La France et le Canada sont, respectivement, issus de deux environnements sociaux-conomiques diffrents. La Tunisie a procd la rforme de son systme comptable pour passer du modle comptable Euro-continental au modle comptable Anglo-amricain. Nanmoins les traits de

Hakim Ben Othman; Daniel Zghal

2006-01-01

391

Fundamentals of electrical propulsion plant design  

Microsoft Academic Search

Contents: electrical propulsion plant equipment requirements; dc electrical propulsion plant main current circuits; dc electrical propulsion plant field and regulation circuits; dc electrical propulsion plant protection, indication, and blocking circuits; calculation of the static characteristics of dc electrical propulsion plants; electrical propulsion plant stability and control quality; transient processes in dc electrical propulsion plants (theory, analytical, and graphic-analytical calculation methods);

N. A. Kuznetsov; P. V. Kuropatkin; A. B. Khaykin; N. M. Khomyakov

1982-01-01

392

Nr. 057 / 2014 // 3. April 2014 Knstlerische Darstellung des ,,Giant impact", des Aufpralls eines kleineren  

E-print Network

Nr. 057 / 2014 // 3. April 2014 1/7 Künstlerische Darstellung des ,,Giant impact", des Aufpralls freundlicher Genehmigung des NASA/Jet Propulsion Labors am California Institute of Technology. In ,,Nature- zeichnet. Der ,,Giant impact" und seine Folgen: Die Entstehung des Mondes und Veränderungen im Erdmantel

Ullmann, G. Matthias

393

Cathodic protection  

Microsoft Academic Search

Cathodic protection is the electrical solution to the corrosion problem. In this article, the history of cathodic protection (CP) is traced, and the design fundamentals are developed, including the three components of a corrosion system, the three elements of an electric circuit, and the three configurations causing potential difference. CP is the process of forcing a metal to be more

MARCUS O. DURHAM; ROBERT A. DURHAM

2005-01-01

394

Tornado protection by venting  

SciTech Connect

The purpose of this paper is to demonstrate the ability to protect a modern nuclear power plant from the effects of a tornado by the use of a system of venting in all safety-related structures outside of the containment. The paper demonstrates this by presenting a method of analysis and of equipment selection that fully complies with the intent and the letter of applicable federal regulatory guides. A report of an actual tornado in the City of Kalamazoo, Michigan, suggests that the concept of sealing a plant during a tornado may not always be applicable.

Cavanagh, C.A.

1987-01-01

395

Absorption des substances dissoutes dans le milieu, des particules et des produits de la digestion extracellulaire chez Actinia equina  

E-print Network

Absorption des substances dissoutes dans le milieu, des particules et des produits de la digestion. Absorption of substances dissolved in the sea-environment, particles and extra- cellular digestion products with the prey. The transfer (in both directions) of the different absorbed substances between the ecto- derm

Paris-Sud XI, Université de

396

FACULT DES SCIENCES HUMAINES ET SOCIALES -SORBONNE  

E-print Network

FACULT? DES SCIENCES HUMAINES ET SOCIALES - SORBONNE LICENCE EN SCIENCES HUMAINES ET SOCIALES ANN?E UNIVERSITAIRE 2013-2014 MENTION SCIENCES DU Vaillant 92100 Boulogne-Billancourt L3, M1 et M2 Faculté des Sciences

Pellier, Damien

397

FACULT DES SCIENCES HUMAINES ET SOCIALES -SORBONNE  

E-print Network

FACULT? DES SCIENCES HUMAINES ET SOCIALES - SORBONNE LICENCE EN SCIENCES HUMAINES ET SOCIALES ANN?E UNIVERSITAIRE 2013-2014 MENTION SCIENCES DE L'?DUCATION L3 Faculté des Sciences humaines et sociales

Pellier, Damien

398

Responsables des Services Administratifs et Financiers  

E-print Network

­ 24 avenue des Landais ­ BP 80026 ­ 63711 Aubière cedex Personnel enseignant et HC (70.11) Marie-Jo BERTHOLET / Suzanne HERNANDEZ Responsable Dominique BESSE (70.16) Gestion des salles, Examens, ADE (70

Sart, Remi

399

Kentucky Department for Natural Resources and Environmental Protection permit application for air contaminant source: SRC-I demonstration plant, Newman, Kentucky. Appendix D. Impact assessment. [Demonstration plant at Newman, KY  

SciTech Connect

In appendix D, the air quality condition for various pollutants in the areas surrounding the proposed demonstration plant site is given with respect to attainment or non-attainment of US EPA regulations. The minimum pollutant emission rates for these regulated and for several other pollutants are given. Then the estimated emission rates from the proposed plant are given for a dozen pollutants which exceed these limits and therefore require an ambient air quality analysis. This involves taking into account the estimated emission of these pollutants from the proposed plant and from other sources in the surrounding area. Finally, background data from the surrounding area including meteorological data and sampling of regulated pollutants are given. (LTN)

none,

1980-11-21

400

DESULFURIZATION OF STEEL MILL SINTER PLANT GASES  

EPA Science Inventory

The report gives results of an evaluation of the technical and economic feasibility of using limestone scrubbing technology to control sinter plant emissions. Data from Soviet and Japanese sinter plants employing limestone scrubbing technology were used to develop a realistic des...

401

FeAl Weld Overlay and High Velocity Oxy-Fuel Thermal Spray Coatings for Corrosion Protection of Waterwalls in Fossil Fired Plants with Low NOx Burners  

Microsoft Academic Search

Iron-aluminum-chromium coatings were investigated to determine the best candidates for coatings of boiler tubes in Low NOx fossil fueled power plants. Ten iron-aluminum-chromium weld claddings with aluminum concentrations up to 10wt% were tested in a variety of environments to evaluate their high temperature corrosion resistance. The weld overlay claddings also contained titanium additions to investigate any beneficial effects from these

Regina

2002-01-01

402

Thermal status of the noise- and heat-protective housing of a gas-turbine plant in a gas-pumping unit  

Microsoft Academic Search

The problem of the thermal status of the noise- and heat-insulating housing (NHH) of a gas-turbine plant (GTP) is examined.\\u000a Results are presented for an investigation of the thermal status of the space beneath the NHH and its walls with allowance\\u000a for heat transfer due to radiative emission of heated components of the structure. A mathematical model is proposed for

P. V. Trusov; D. A. Charntsev; A. M. Pechenkina

2010-01-01

403

LE BULLETIN DE L'EPI N 58 DES SECONDES ET DES PC EN HISTOIRE-GOGRAPHIE DES "SECONDES" ET DES "PC"  

E-print Network

allumer le PC, mettre la disquette système, mettre la disquette du programme. Avec la multiplication de l : comprendre) ses erreurs (cf. La vie du lac sur PC, ou Esporif sur Nanoréseau). D'autres programmes permettent129 LE BULLETIN DE L'EPI N° 58 DES SECONDES ET DES PC EN HISTOIRE-G?OGRAPHIE DES "SECONDES" ET DES

Paris-Sud XI, Université de

404

Des volcans et des hommes depuis le dernier interglaciaire en Basse Auvergne (Massif Central, France)  

E-print Network

of volcanic activity . In the Massif Central, selected case- studies allow us to discuss the effect of local climatiques quaternaires ont rythmé la différenciation des biotopes. Le volcanisme a brutalement perturbé l et provoqué des modifications brutales des versants et des tracés des cours d'eau : c'est le cas en

Paris-Sud XI, Université de

405

DOSAGE DES LIPIDES DES FCES EXTRACTION SPARE, IMPORTANCE ET COMPOSITION EN ACIDES GRAS  

E-print Network

DOSAGE DES LIPIDES DES F?CES EXTRACTION S?PAR?E, IMPORTANCE ET COMPOSITION EN ACIDES GRAS DES ce travail a été la mise au point d'une méthode de dosage des lipides des fèces qui permette d nécessaire d'en tenir compte dans les calculs de digestibilité. Cependant, dans certains cas, il importe de

Paris-Sud XI, Université de

406

Pouvoirs et protection des femmes dans les glises pentectistes africaines  

E-print Network

, African Pentecostal churches, migration, healing, deliverance Resumo A associação das mulheres para o treinamento de crianças e outras mulheres é no momento o modelo dominante nas Igrejas Pentecostais Africanas, acompanhado às vezes pelo papel da "Mulher do Pastor", um status respeitado sem verdadeira autoridade

Boyer, Edmond

407

UNIVERSIT DE SHERBROOKE SERVICE DES IMMEUBLES  

E-print Network

UNIVERSIT? DE SHERBROOKE SERVICE DES IMMEUBLES GUIDE DE L'ENTREPRENEUR POUR LES TRAVAUX DE CONSTRUCTION 9 JANVIER 2013 #12;Table des matières Guide de l'entrepreneur ­ Université de Sherbrooke 2 1. PROC?DURE DE CADENASSAGE DES ?QUIPEMENTS PAR LE MA?TRE D'OEUVRE (ENTREPRENEUR G?N?RAL

Spino, Claude

408

Lipodystrophies : perceptions et souffrance des personnes atteintes,  

E-print Network

Lipodystrophies : perceptions et souffrance des personnes atteintes, réponses collectives 117 Alice Desclaux, Sokhna Boye 1. INTRODUCTION Les lipodystrophies sont définies par la médecine comme des ailleurs il existe actuellement un débat sur la prévalence des lipodystrophies dans les pays du Sud. Elles

Paris-Sud XI, Université de

409

Die Gestaltungen des Wahnsinns bei William Shakespeare  

Microsoft Academic Search

ZusammenfassungShakespeare gilt als der groe Menschenbeschreiber am Beginn der Neuzeit. Wie bei vielen seiner Zeitgenossen war der Wahnsinn ein ganz zentrales Thema seines Schaffens. Diese Arbeit geht der Frage des kulturgeschichtlichen und gesellschaftlichen Umfeldes nach, aus dem heraus Shakespeare Figuren entwickelt hat, die aus diesem Kontext weit herausragen. Dabei liegt ein wesentlicher Schwerpunkt auf der historischen Semantik des Wortfelds des

Thomas Stompe; Kristina Ritter; Alexander Friedmann

2006-01-01

410

Comores (Union des) Admission 1 er  

E-print Network

#12;2014-02-25 Secteur mathématiques et informatique Liste complète des programmes en sciences pures demandés Administration des systèmes informatiques Multimédia Programmation2014-02-25 Comores (Union des) Admission 1 er cycle Programmes à capacité d'accueil limitée

Montréal, Université de

411

Alfred Adler: Der Sinn des Lebens  

Microsoft Academic Search

Die Meinung des Individuums vom Sinn des Lebens ist in letzter Linie die Richtschnur fr sein Denken, Fhlen und Handeln.\\u000a Der wahre Sinn des Lebens aber zeigt sich in dem Widerstand, der sich dem unrichtig handelnden Individuum entgegensetzt (S.\\u000a 39).

Dorit Hejze

412

Lightning Protection  

NASA Technical Reports Server (NTRS)

An airplane's wingtip tank is being struck by simulated lightning in a test conducted by Lightning Technologies, Inc., a firm specializing in design features to protect aircraft from the hazard of electrical phenomena. Much of the technology employed in tests originated in NASA - sponsored studies focusing on effects of lightning on aircraft structures, electrical systems, and fuel tanks, and on means of protecting against hazardous effects.

1980-01-01

413

Mechanics without Muscle: Biomechanical Inspiration from the Plant World  

E-print Network

or days to milliseconds (Skotheim and Mahadevan 2005). Growth and tropisms that allow plants to reachSYMPOSIUM Mechanics without Muscle: Biomechanical Inspiration from the Plant World Patrick T of Stanford University, Pacific Grove, CA 93950, USA; # Botanique et Bioinformatique des Plantes, Universite

Martone, Patrick T.

414

Morocco Desalination Plant Feasibility Study. Final Report (Public Version).  

National Technical Information Service (NTIS)

This study, completed by Framatome ANP DE&S in 2003, evaluated the technical and economic feasibility of a desalination plant at the Jorf Lasfar Plant in Morroco. Installation of a 60,000 M3/day seawater desalination plant would supply both drinking and p...

2003-01-01

415

Waste Treatment And Immobilization Plant U. S. Department Of Energy Office Of River Protection Submerged Bed Scrubber Condensate Disposition Project - Abstract # 13460  

SciTech Connect

The Hanford Waste Treatment and Immobilization Plant (WTP) will generate an off-gas treatment system secondary liquid waste stream [submerged bed scrubber (SBS) condensate], which is currently planned for recycle back to the WTP Low Activity Waste (LAW) melter. This SBS condensate waste stream is high in Tc-99, which is not efficiently captured in the vitrified glass matrix. A pre-conceptual engineering study was prepared in fiscal year 2012 to evaluate alternate flow paths for melter off-gas secondary liquid waste generated by the WTP LAW facility. This study evaluated alternatives for direct off-site disposal of this SBS without pre-treatment, which mitigates potential issues associated with recycling.

Yanochko, Ronald M [Washington River Protection Solutions, Richland, WA (United States); Corcoran, Connie [AEM Consulting, LLC, Richland, WA (United States)

2012-11-15

416

Modelling Plant Compensatory Effects in Plant-Insects dynamics  

E-print Network

Modelling Plant Compensatory Effects in Plant-Insects dynamics Audrey Lebon, Yves Dumont Umr AMAP or even to obtain a better biomass yield. Index Terms--Mathematical modelling, crop protection, plant-insect]. The relationships between insect populations and plants are complex and their dynamics difficult to pre- dict

Paris-Sud XI, Université de

417

FACULT DES ARTS ET DES SCIENCES DPARTEMENT DE COMMUNICATION  

E-print Network

) 400-2578 Courrier électronique : carole.groleau@umontreal.ca Coordonnateur des stages : Frédéric Truax Bureau B-415 Téléphone : (514) 343-6111 poste 2763 Télécopieur : (514) 400-2578 Courrier électronique bidisciplinaire en Bureau B-426 communication et politique Courrier électronique : odette

Parrott, Lael

418

FACULT DES ARTS ET DES SCIENCES DPARTEMENT DE COMMUNICATION  

E-print Network

) 400-2578 Courrier électronique : carole.groleau@umontreal.ca Coordonnateur des stages : Frédéric Truax Bureau B-415 Téléphone : (514) 343-6111 poste 2763 Télécopieur : (514) 400-2578 Courrier électronique communication organisationnelle Gabrielle C. Poirier Bureau : B-428 Courrier électronique : gabrielle

Parrott, Lael

419

FACULT DES ARTS ET DES SCIENCES DPARTEMENT DE COMMUNICATION  

E-print Network

) 400-2578 Courrier électronique : carole.groleau@umontreal.ca Coordonnateur des stages : Frédéric Truax Bureau B-415 Téléphone : (514) 343-6111 poste 2763 Télécopieur : (514) 400-2578 Courrier électronique communication organisationnelle Magali Demers Bureau : B-427 Courrier électronique : magali

Parrott, Lael

420

LA SPECTRORADIOMTRIE, OUTIL D'TUDE DES IMPACTS DES REJETS  

E-print Network

and wastes are oxidized thus generating acid mining drainage (AMD) capable to mobilize and release heavy à stériles sont soumis à une oxydation générant ainsi des eaux acides (Drainage Minier Acide ou DMA contamination probable du lac Ichkeul. Mots clés : rejets miniers, drainage minier acide, spectroradiométrie

Boyer, Edmond

421

CROISSANCE DES TISSUS DU RAT ET QUALIT DES PROTINES ALIMENTAIRES;  

E-print Network

(gluten de blé), les autres avec des protéines de bonne qualité (farine de hareng), a été étudiée en mauvaise qualité (gluten de blé). Nous entendons par « carcasse » l'ensemble du corps de l'animal, moins le

Paris-Sud XI, Université de

422

Caractrisation des scheresses des sols en France et changement climatique.  

E-print Network

over France by using a climatological reanalysis of the Safran/Isba/Modcou Isba suite (SIM) since 1958 hydrométéorologique Safran-Isba-Modcou (SIM) depuis 1958. Des indices standardisés « Standardized Precipitation Index monitoring and used to assess the exceptional drought of spring 2011. These indices were also calculated

Paris-Sud XI, Université de

423

DEVELOPPEMENT DES MARCHES FINANCIERS ET EVALUATION DES ACTIFS BANCAIRES  

E-print Network

du système financier, nous nous appuyons sur l'hypothèse des coûts politiques (Watts et Zimmerman, 1986). 1.1 Les asymétries d'information L'évaluation au sein du secteur bancaire revêt un caractère

Paris-Sud XI, Université de

424

Facult des arts et des sciences Dpartement de littrature compare  

E-print Network

, supports, modes de production des textes, modes de stockage et de distribution, moyens et techniques d aborder les transformations techniques qui surgissent actuellement tout autour de nous et qui contribuent et offre même la possibilité d'interroger l'avenir proche. Ce long détour historique permet donc de

Parrott, Lael

425

Trouver des solutions cratives des problmes de toutes  

E-print Network

'offre l'informatique. Informatique Au-delà de la programmation > Vous souhaitez travailler dans l'un des. Ce programme, qui combine la génomique et l'informatique, est le seul offert aux quatre cycles d de l'informatique, qui lui sont de plus en plus indissociables. L'approche numérique de ce programme

Montréal, Université de

426

Facult des arts et des sciences Dpartement de science politique  

E-print Network

(r�)imagin�s Ukraine, Moldova Cours 7 Notre langue... et le statut des russophones Estonie, Ukraine. Gagaouzes (Moldova), Russes et Tatars de Crim�e (Ukraine) Cours 12 S�paratisme sur les territoires 13 Les acteurs externes et les conflits Transnistrie (Moldova et la Russie, la Roumanie, l

Parrott, Lael

427

Transport quantique dans des nanostructures  

NASA Astrophysics Data System (ADS)

Quantum transport in nanostructures This work is devoted to the design, fabrication and magnetotransport investigations of mesoscopic devices. The sample are obtain by e-beam lithography and the measurements are performed at low temperature in a dilution refrigerator in the presence of a magnetic field. We have used MBE grown AlGaAs/GaAs heterojonctions as starting material to fabricate a bipartite tiling of rhombus called mathcal{T}3 lattice. We observe for the first time large amplitude h/e oscillations in this network as compared to the one measured in square lattices of similar size. These oscillations are the signature of a recently predited localization phenomenon induced by Aharonov-Bohm interferences on this peculiar topology. For particular values of the magnetic field the propagation of the electron wave function is bounded in a small number of cells, called Aharonov-Bohm cages. More strikingly, at high magnetic field, h/2e oscillations appear whose amplitude can be much higher than the fundamental period. Their temperature dependence is similar to that of the h/e signal. These observations withdraw a simple interpretation in terms of harmonics generation. The origin of this phenomenon is still unclear and needs more investigations. The influence electrical width of the wire defining the network and so the rule of the number of channels can be studied using a gate deposited over the lattice. In particular we have measured the amplitude dependence of the h/e and h/2e signal versus the gate voltage. Ce travail est consacr la ralisation d'chantillons msoscopiques partir de la lithographie lectronique ainsi qu' leur caractrisation trs basse temprature en magntotransport. Nous avons pour cela exploit le gaz bidimensionnel d'lectrons situ l'interface d'une htrojonction AlGaAs/GaAs pour raliser un rseau de boucle d'une gomtrie particulire baptise la gomtrie mathcal{T}3. Nous avons observ sur cette structure des oscillations de conductance en fonction du flux du champ magntique de priode h/e dont l'amplitude est beaucoup plus importante que celle mesure sur un rseau carr de mme dimension. Cette diffrence constitue une signature d'un effet de localisation induit par le champ magntique sur la topologie mathcal{T}3. Pour des valeurs spcifiques du champ magntique, du fait des interfrences destructives Aharonov-Bohm, la propagation des fonctions d'ondes est limite un ensemble fini de cellule du rseau appel cage. De la dpendance en temprature des oscillations de priode h/e mesures sur le rseau mathcal{T}3 nous avons tir une longueur caractristique qui peut tre rattache au primtre des cages. Un phnomne inattendu fut l'observation, pour des champs magntiques plus importants, d'un doublement de frquence des oscillations. Ces oscillations de priode h/2e pouvant avoir une amplitude suprieure aux oscillations de priode h/e, une interprtation en terme d'harmonique n'est pas possible. Enfin, l'influence de la largeur lectrique des fils constituant le rseau et donc celle du nombre de canaux par brin a t tudie en ralisant des grilles lectrostatique. Les variations de l'amplitude des signaux en h/e et h/2e en fonction de la tension de grille ont t mesurs.

Naud, C.

2002-09-01

428

Oral immunogenicity and protective efficacy in mice of transgenic rice plants producing a vaccine candidate antigen (As16) of Ascaris suum fused with cholera toxin B subunit.  

PubMed

Cereal crops such as maize and rice are considered attractive for vaccine production and oral delivery. Here, we evaluated the rice Oryza sativa for production of As16-an antigen protective against the roundworm Ascaris suum. The antigen was produced as a chimeric protein fused with cholera toxin B subunit (CTB), and its expression level in the endosperm reached 50 microg/g seed. Feeding the transgenic (Tg) rice seeds to mice elicited an As16-specific serum antibody response when administered in combination with cholera toxin (CT) as the mucosal adjuvant. Although omitting the adjuvant from the vaccine formulation resulted in failure to develop the specific immune response, subcutaneous booster immunization with bacterially expressed As16 induced the antibody response, indicating priming capability of the Tg rice. Tg rice/CT-fed mice orally administered A. suum eggs had a lower lung worm burden than control mice. This suggests that the rice-delivered antigen functions as a prophylactic edible vaccine for controlling parasitic infection in animals. PMID:18763047

Matsumoto, Yasunobu; Suzuki, Seiko; Nozoye, Tomoko; Yamakawa, Takashi; Takashima, Yasuhiro; Arakawa, Takeshi; Tsuji, Naotoshi; Takaiwa, Fumio; Hayashi, Yoshihiro

2009-04-01

429

Exploration des effets dun programme de radaptation visant lamlioration des activits et la participation des personnes crbrolses. Application lactivit cuisine.  

E-print Network

??Les troubles cognitifs et comportementaux aprs une lsion crbrale peuvent entraner des limitations dactivit svres et des restrictions de participation. Les personnes crbrolses acquises ncessitent (more)

Poncet, Frdrique

2014-01-01

430

Implantation des Espaces de Travail I. Introduction.............................................................. 82  

E-print Network

Chapitre 5 Implantation des Espaces de Travail I. Introduction : Implantation des Espaces de Travail - 82 - I. Introduction L'implantation des Espaces de Travail est basée sur l'utilisation des mécanismes récents des systèmes d'exploitation, comme le Memory-Mapping et le

Donsez, Didier

431

nierung auf Bltenduftstoffe des Raps im Rs-selreflextest -Pseudo-Konditionierung durch eine  

E-print Network

'iso- lement avec Megachile rotundata F comme vecteur de pollen : estimations de la production de graines plantes, domaine de Melgueil, 34130 Mauguio, France) L'aptitude de Megachile rotundata à polli- niser des ces résultats, cette utilisation de Megachile rotundata représente un outil très intéres- sant pour la

Boyer, Edmond

432

Groundwater Protection Program Calendar Year 1998 Evaluation of Groundwater Quality Data for the Chestnut Ridge Hydrogeologic Regime at the U.S. Department of Energy Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

The Chestnut Ridge Hydrogeologic Regime (Chestnut Ridge Regime) encompasses a section of Chestnut Ridge south of the U.S. Department of Energy (DOE) Y-12 Plant (Figure 1). Groundwater monitoring is performed at several hazardous and nonhazardous waste management facilities located in the regime per the requirements of applicable operating/post closure permits and governing state/federal regulations and guidelines, including DOE Order 5400.1A - General Environmental Protection Program. Applicable provisions of DOE Order 5400.1A require evaluation of available monitoring data with regard to: (1) groundwater quality in areas that are, or could be, affected by Y-12 Plant operations, (2) the quality of surface water and groundwater where contaminants are most likely to migrate beyond the DOE Oak Ridge Reservation (ORR) property line, and (3) long-term trends in groundwater quality at the Y-12 Plant. This report presents the results of these DOE Order 5400.1A evaluations based on available data for the network of monitoring wells and springs in the Chestnut Ridge Regime sampled during calendar year (CY) 1998. The following sections of this report contain relevant background information (Section 2.0); describe the results of the respective data evaluations required under DOE Order 5400.1A (Section 3.0); summarize significant findings of each evaluation (Section 4.0); and list the technical reports and regulatory documents cited for more detailed information (Section 5.0). All of the illustrations (maps and trend graphs) and data summary tables referenced in each section are presented in Appendix A and Appendix B, respectively.

none

1999-09-01

433

Lightning Protection  

NASA Technical Reports Server (NTRS)

Kit-built airplanes are more affordable because they are assembled by the owner and do not require Federal Aviation Administration (FAA) certification. The Glasair III, is an advanced technology homebuilt, constructed of a fiberglass and graphite fiber composite material, and equipped with digital instruments. Both technologies make the airplane more susceptible to lightning effects. When Glasair manufacturer, Stoddard-Hamilton, decided that lightning protection would enable more extensive instrument flight and make the plane more marketable, they proposed a joint development program to NASA Langley Research Center (LAR). Under a Small Business Innovation Research (SBIR) contract, Langley contractors designed and tested a lightning protection system, and the Glasair III-LP became the first kit-built composite aircraft to be lightning tested and protection-verified under FAA guidelines for general aviation aircraft.

1994-01-01

434

Radiation Protection  

NASA Astrophysics Data System (ADS)

Radiation protection is a very important aspect for the application of particle detectors in many different fields, like high energy physics, medicine, materials science, oil and mineral exploration, and arts, to name a few. The knowledge of radiation units, the experience with shielding, and information on biological effects of radiation are vital for scientists handling radioactive sources or operating accelerators or X-ray equipment. This article describes the modern radiation units and their conversions to older units which are still in use in many countries. Typical radiation sources and detectors used in the field of radiation protection are presented. The legal regulations in nearly all countries follow closely the recommendations of the International Commission on Radiological Protection (ICRP). Tables and diagrams with relevant information on the handling of radiation sources provide useful data for the researcher working in this field.

Grupen, Claus

435

Exclusive rewards in mutualisms: ant proteases and plant protease inhibitors create a lock-key system to protect Acacia food bodies from exploitation.  

PubMed

Myrmecophytic Acacia species produce food bodies (FBs) to nourish ants of the Pseudomyrmex ferrugineus group, with which they live in an obligate mutualism. We investigated how the FBs are protected from exploiting nonmutualists. Two-dimensional gel electrophoresis of the FB proteomes and consecutive protein sequencing indicated the presence of several Kunitz-type protease inhibitors (PIs). PIs extracted from Acacia FBs were biologically active, as they effectively reduced the trypsin-like and elastase-like proteolytic activity in the guts of seed-feeding beetles (Prostephanus truncatus and Zabrotes subfasciatus), which were used as nonadapted herbivores representing potential exploiters. By contrast, the legitimate mutualistic consumers maintained high proteolytic activity dominated by chymotrypsin 1, which was insensitive to the FB PIs. Larvae of an exploiter ant (Pseudomyrmex gracilis) taken from Acacia hosts exhibited lower overall proteolytic activity than the mutualists. The proteases of this exploiter exhibited mainly elastase-like and to a lower degree chymotrypsin 1-like activity. We conclude that the mutualist ants possess specifically those proteases that are least sensitive to the PIs in their specific food source, whereas the congeneric exploiter ant appears partly, but not completely, adapted to consume Acacia FBs. By contrast, any consumption of the FBs by nonadapted exploiters would effectively inhibit their digestive capacities. We suggest that the term 'exclusive rewards' can be used to describe situations similar to the one that has evolved in myrmecophytic Acacia species, which reward mutualists with FBs but safeguard the reward from exploitation by generalists by making the FBs difficult for the nonadapted consumer to use. PMID:23683294

Orona-Tamayo, Domancar; Wielsch, Natalie; Blanco-Labra, Alejandro; Svatos, Ales; Faras-Rodrguez, Rodolfo; Heil, Martin

2013-08-01

436

Noise Protection  

NASA Technical Reports Server (NTRS)

Environmental Health Systems puts forth an increasing effort in the U.S. to develop ways of controlling noise, particularly in industrial environments due to Federal and State laws, labor union insistence and new findings relative to noise pollution impact on human health. NASA's Apollo guidance control system aided in the development of a noise protection product, SMART. The basis of all SMART products is SMART compound a liquid plastic mixture with exceptional energy/sound absorbing qualities. The basic compound was later refined for noise protection use.

1980-01-01

437

Lightning Protection  

NASA Technical Reports Server (NTRS)

Lightning Technologies, Inc., Pittsfield, MA, - a spinoff company founded by president J. Anderson Plumer, a former NASA contractor employee who developed his expertise with General Electric Company's High Voltage Laboratory - was a key player in Langley Research Center's Storm Hazards Research Program. Lightning Technologies used its NASA acquired experience to develop protective measures for electronic systems and composite structures on aircraft, both of which are particularly susceptible to lightning damage. The company also provides protection design and verification testing services for complete aircraft systems or individual components. Most aircraft component manufacturers are among Lightning Technologies' clients.

1991-01-01

438

Structures protection  

NASA Technical Reports Server (NTRS)

Materials of which an aircraft is made and the methods used to hold these materials together forming the aircraft structure were studied as factors important in protecting a modern aircraft from hazardous natural environments. Since all-metal aircraft are being replaced by aircraft constructed partly of fiber reinforced plastics with desirable light weight and high strength properties but with poor electrical conductivity, the danger of lightning strikes has become more serious. Lightning effects on metal structures were reviewed and design protection was discussed. The expected lightning effects on nonmetallic materials such as fiberglass and advanced composites were also reviewed.

1977-01-01

439

Factorisation des polynmes de Poncelet  

Microsoft Academic Search

La condition pour quil existe des n-gones de Poncelet, inscrits dans un cercle, et circonscrits un autre cercle, est polynomiale\\u000a en les paramtres dfinissant ces deux cercles. Nous dcomposons ces polynmes de Poncelet en facteurs irrductibles que\\u000a nous interprtons gomtriquement.

Dominique Hulin

2007-01-01

440

DES o Digital Encryption Standard  

E-print Network

DES o Digital Encryption Standard o 56-bit secret keys o.S. government o U.S. government non-classified standard (and standard for many other governments?) o small keys (not good enough for state secrets!) o fairly standard secret-key algorithm

Biagioni, Edoardo S.

441

Contribution des lments de gestion des rclamations la satisfaction : les apports de la thorie de la justice  

Microsoft Academic Search

La gestion des rclamations revt une importance toute particulire dans le secteur des services. Cette recherche se propose de prsenter les apports des thories de la justice pour la gestion des rclamations dans le cadre d'une exprience de service. Le modle ttraclasse est mobilis afin d'tudier la contribution des lments de justice la satisfaction. Cette tude montre que, dans

William Sabadie; Isabelle Prim-Allaz; Sylvie Llosa

2006-01-01

442

GESTION DES PRESQUE ACCIDENTS ET ACCIDENTS MAJEURS : PREMIER BILAN D'UNE ENQUETE SUR DES SITES SEVESO  

E-print Network

GESTION DES PRESQUE ACCIDENTS ET ACCIDENTS MAJEURS : PREMIER BILAN D'UNE ENQUETE SUR DES SITES sur la gestion des presque accidents. Les presque accidents sont associés à la thématique des précurseurs et des signaux faibles, ces signaux qui sont rendus évident seulement une fois que l'accident est

Boyer, Edmond

443

Une technologie invisible - L'impact des instruments de gestion sur l'volution des systmes humains  

Microsoft Academic Search

Des instruments de gestion plus ou moins complexes sont mobiliss dans la gestion des organisations. Ils sont gnralement considrs comme des auxiliaires discrets et fidles au service du pouvoir, comme les indications du tableau de bord et des dispositifs de commande d'un pilote d'avion. Ceci est cohrent avec la vision selon laquelle la conduite des organisations est essentiellement affaire de

Michel Berry

1983-01-01

444

Aimant PS: controle de l'etat des sertissages internes des PFW mesures effectues surl'ensemble des aimants du PS pendant le grand arret 2004/2006  

E-print Network

Les sertissages (douilles), utiliss pour raccorder les mplats du circuit principal des PFW leurs cbles dalimentation, prsentent parfois des dfauts de ralisation qui entranent une rsistance lectrique anormale. Pour mettre en vidence ces dfauts, la rsistance des 4 sertissages des nappes polaires est mesure. Les nappes sont alimentes avec un courant efficace nominal de 80A.Les mesures sont effectues entre le bornier de connexions des 4 cbles dalimentation des PFW et les circuits auxiliaires correspondants (Pick-ups brass sur les enroulements). De ces mesures (cble dalimentation et une courte partie du circuit principal) est dduite la valeur de la rsistance du sertissage qui en assure la liaison. A la mesure des rsistances des sertissages des nappes polaires suprieures sajoute la rsistance des cbles qui assurent la liaison entre borniers. Dans le cadre de la rnovation des aimants du PS, les 100 units on t mesures.

Ottaviani, J

2005-01-01

445

Plant improvement Analysis of a 5-parent half diallel in dried pea  

E-print Network

Plant improvement Analysis of a 5-parent half diallel in dried pea (Pisum sativum L). I. Seed yield'Amélioration des Plantes, 80200 Estrées-Mons; Biopôle Végétal, 11Mail Albert 1er, 80000 Amiens; 2 INRA, Laboratoire de Génétique et d'Amélioration des Plantes, Route de Saint-Cyr, 78000 Versailles, France; 3 John

Paris-Sud XI, Université de

446

Effects of Wind on Plants  

NASA Astrophysics Data System (ADS)

This review surveys the large variety of mechanical interactions between wind and plants, from plant organs to plant systems. These interactions range from leaf flutter to uprooting and seed dispersal, as well as indirect effects on photosynthesis or insect communication. I first estimate the relevant nondimensional parameters and then discuss turbulence, plant dynamics, and the mechanisms of interaction in this context. Some common features are identified and analyzed in relation to the wind engineering of manmade structures. Strong coupling between plants and wind exists, in which the plant motion modifies the wind dynamics. I also present some related biological issues in which the relation between plant life and wind environment is emphasized. [V]oici la lourde nappe/Et la profonde houle et locan des bls [Like a sheet/The deep swell on a sea of wheat] Charles Pguy (1873 1914)

de Langre, Emmanuel

2008-01-01

447

Protective Clothing  

NASA Technical Reports Server (NTRS)

Beta Glass material, originating from the Apollo program is supplied to Fyrepel by Owens-Corning and incorporated into Fyrepel's Fyretex and Beta-Mex aluminized fabrics. Fabrics are used in fire entry suits, several other types of protective suits for wear in hot industrial environments and such accessory items as heat-reflecting curtains for industrial applications.

1981-01-01

448

Protecting Privacy.  

ERIC Educational Resources Information Center

Discusses privacy issues related to use of the Internet. Topics include data gathering functions that are built into applications of the World Wide Web; cookies that identify Web site visitors; personal identity information; libraries and privacy, including the need for privacy policies; protecting your privacy; and developing privacy literacy.

Coyle, Karen

2001-01-01

449

Partager : des technologies de pointe au service de la socit  

SciTech Connect

Mdecine, climatologie, mtrologie et informatique, les techniques utilises par le LHC trouvent dj des rpercussions dans dautres domaines scientifiques. Utilisant des techniques indites, la physique des particules en fait bnficier la socit toute entire.

None

2011-02-14

450

lments pour une histoire des politiques publiques en faveur des "musiques amplifies"  

E-print Network

domaine des "musiques amplifiées"1 (rock, rap, techno, etc.), la multiplication des lieux musicaux la politique culturelle3 tournant le dos à ses objectifs initiaux et faisant le lit de la barbarie.4

Paris-Sud XI, Université de

451

Les cristaux considrs comme des graphes ou des 2-complexes ; le cas des cristaux apriodiques  

E-print Network

de donner une image simple de la topologie de la « surface atomique » d'un cristal apériodique (quasi-cristal) : nous montrons en effet que cette topologie est équivalente à la topologie des chemins sur un cristal

Boyer, Edmond

452

Die Unabhngigkeit des morphologischen Farbwechsels vom physiologischen Farbwechsel bei der Entstehung des Hochzeitskleides des mnnlichen Bitterlings  

Microsoft Academic Search

Die Zahl der Erythrophoren beim mnnlichen Bitterling lt sich durch Hodenextrakte, Hypophysenvorderlappen- und Hypophysenhinterlappenextrakte vermehren und durch Adrenalin vermindern, in allen Fllen ohne Vernderung ihres Expansionsgrades. Diese Befunde zeigen, da der morphologische Farbwechsel direkt durch Hormone bedingt ist und nicht eine Folge des physiologischen ist.

Gertraut Brantker

1956-01-01

453

10 CFR 76.53 - Consultation with Environmental Protection Agency.  

Code of Federal Regulations, 2010 CFR

...Protection Agency. 76.53 Section 76.53 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Certification 76.53 Consultation with Environmental Protection Agency. In reviewing an application...

2010-01-01

454

10 CFR 76.53 - Consultation with Environmental Protection Agency.  

Code of Federal Regulations, 2012 CFR

...Protection Agency. 76.53 Section 76.53 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Certification 76.53 Consultation with Environmental Protection Agency. In reviewing an application...

2012-01-01

455

10 CFR 76.53 - Consultation with Environmental Protection Agency.  

Code of Federal Regulations, 2011 CFR

...Protection Agency. 76.53 Section 76.53 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Certification 76.53 Consultation with Environmental Protection Agency. In reviewing an application...

2011-01-01

456

10 CFR 76.53 - Consultation with Environmental Protection Agency.  

...Protection Agency. 76.53 Section 76.53 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Certification 76.53 Consultation with Environmental Protection Agency. In reviewing an application...

2014-01-01

457

10 CFR 76.53 - Consultation with Environmental Protection Agency.  

Code of Federal Regulations, 2013 CFR

...Protection Agency. 76.53 Section 76.53 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) CERTIFICATION OF GASEOUS DIFFUSION PLANTS Certification 76.53 Consultation with Environmental Protection Agency. In reviewing an application...

2013-01-01

458

50 CFR 17.106 - Emergency establishment of protection areas.  

Code of Federal Regulations, 2012 CFR

...THREATENED WILDLIFE AND PLANTS (CONTINUED) Manatee Protection Areas 17.106 Emergency... (a) The Director may establish a manatee protection area under the provisions...imminent danger of a taking of one or more manatees, and that such establishment is...

2012-10-01

459

50 CFR 17.106 - Emergency establishment of protection areas.  

Code of Federal Regulations, 2013 CFR

...THREATENED WILDLIFE AND PLANTS (CONTINUED) Manatee Protection Areas 17.106 Emergency... (a) The Director may establish a manatee protection area under the provisions...imminent danger of a taking of one or more manatees, and that such establishment is...

2013-10-01

460

TUDE DES PROPRITS PHYSIQUES DES COUCHES MINCES PHOTOSENSIBLES DE SULFURE DE CADMIUM  

E-print Network

757 ?TUDE DES PROPRI?T?S PHYSIQUES DES COUCHES MINCES PHOTOSENSIBLES DE SULFURE DE CADMIUM Par G. - Pour reconnaître si les cellules au sulfure de cadmium étaient aptes à la photométrie des petits flux substances photo- conductrices, le sulfure de cadmium est l'une des plus sensibles. On entend par là d

Paris-Sud XI, Université de

461

La culture en action des enseignants LA CULTURE EN ACTION DES ENSEIGNANTS  

E-print Network

La culture en action des enseignants 1 LA CULTURE EN ACTION DES ENSEIGNANTS REVUE DES SCIENCES DE L'action située, cet article propose une analyse de la cognition et de la culture en action des enseignants. La en classe et la possibilité d'une culture partagée ; la troisième sur les processus de transmission

Paris-Sud XI, Université de

462

EPA's Radiation Protection Standards Protecting the Environment from  

E-print Network

plants. The Nuclear Regulatory Commission (NRC) has regulatory responsibility for licensing and oversight Regulatory Commission (NRC)--The NRC regulates the civilian uses of nuclear materials in the United States the EPA Radiation Protection website at: www.epa.gov/radiation Other Regulatory Agencies U.S. Nuclear

463

Power Plant Power Plant  

E-print Network

Stillwater Power Plant Wabuska Power Plant Casa Diablo Power Plant Glass Mountain Geothermal Area Lassen Geothermal Area Coso Hot Springs Power Plants Lake City Geothermal Area Thermo Geothermal Area Lakeview Geothermal Area Raft River Geothermal Area Cove Fort Power Plant Roosevelt Power Plant Borax Lake

Tingley, Joseph V.

464

Activit parasitaire des Trichoderma vis--vis des champignons sclrotes ; corrlation avec  

E-print Network

Activité parasitaire des Trichoderma vis-à-vis des champignons à sclérotes ; corrélation avec l Montpellier Cedex R?SUM?? Une vingtaine de clones de Trichoderma, comparés pour leur aptitude à détruire des saprophytique. SUMMARYY Parasitic activity of Trichoderma clones against sclerotial fungi ; correlation

Paris-Sud XI, Université de

465

LA GESTION DES RESULTATS LORS DES INTRODUCTIONS EN BOURSE EST ELLE  

E-print Network

1 LA GESTION DES RESULTATS LORS DES INTRODUCTIONS EN BOURSE EST ELLE INFORMATIVE ? Auteur résultats et la performance boursière à long terme des introductions en bourse dans un pays européen notamment la France. Nous examinons les `accruals' discrétionnaires avant et après l'introduction en bourse

Boyer, Edmond

466

Rsum du projet de Thse "Utilisation des eaux uses en irrigation : survie des pathognes"  

E-print Network

Résumé du projet de Thèse "Utilisation des eaux usées en irrigation : survie des pathogènes éclairer les décisions publiques en matières de réglementations (traitements des eaux, irrigations, modes

Naud Frédéric

467

Modlisation conjointe des donnes et des processus pour limplantation de schmas dentrepts  

Microsoft Academic Search

Au cours de ces dernires annes, plusieurs approches ont abord la modlisation et le dveloppement des Entrepts de Donnes (ED). La plupart de ces approches fournit des solutions partielles qui traitent soit la modlisation multidimensionnelle, soit la modlisation des processus dExtraction-Transformation-Chargement. Toutefois, peu de travaux ont vis unifier ces deux problmatiques dans un cadre structur ou automatiser le

Faten Atigui; Franck Ravat; Olivier Teste; Gilles Zurfluh

2012-01-01

468

Liberalisierung des internationalen Dienstleistungshandels: Analyse des GATS und Perspektiven fr die zuknftige Handelsliberalisierung  

Microsoft Academic Search

Die vorliegende Untersuchung stellt die Probleme des internationalen Dienstleistungshandels dar; sie analysiert und bewertet die derzeit gltigen Regelungen des GATS. Sowohl die konzeptionelle Problematik der Definition von Dienstleistungen und Dienstleistungshandel, als auch die sich aus der Struktur des GATS heraus ergebenden Probleme fr eine weiterfhrende, erfolgreiche Handelsliberalisierung werden untersucht. Darauf aufbauend werden verschiedene Optionen fr die Konzeption zuknftiger Liberalisierungsverhandlungen diskutiert.

Jan Krancke

1999-01-01

469

Etude des Seuils de Poursuite et de Dmodulation des Signaux Galileo pour  

E-print Network

Etude des Seuils de Poursuite et de Démodulation des Signaux Galileo pour l'Aviation Civile Lieu'utilisation de Galileo par l'aviation civile. D'autre part, dans le cadre de discussions bilatérales entre les signaux GPS et Galileo, et, en particulier, afin de s'assurer que la co-existence des signaux GPS et

Dobigeon, Nicolas

470

Caractrisation hydrodynamique des sols : analyse simplifie des essais de drainage interne  

E-print Network

Caractérisation hydrodynamique des sols : analyse simplifiée des essais de drainage interne Michel-Martin-d'Hères R?SUM? On présente une méthode simple d'analyse des essais de drainage interne classiquement utilisés au Determination of soil hydraulic properties : simplified analysis of internal drainage experiments. A simple

Boyer, Edmond

471

Electronique organique: Emission de lumire bleue dans des OLEDs via des excimres intramolculaires.  

E-print Network

Electronique organique: Emission de lumi�re bleue dans des OLEDs via des excim�res intramol ces nouvelles mol�cules comme couche active dans des diodes organiques �lectroluminescentes (OLEDs OLEDs. Ces travaux s'int�grent dans la th�matique "Compos�s 3-2spiro pour l'�lectronique organique

Rennes, Université de

472

De l'Utilisation des VPNs pour l'Administration et la Scurit des Services Web  

E-print Network

VPNs (et les protocoles de sécurité associés tels IPsec et SSL) dans une architecture des services web basée sur des tunnels IPsec entre des sites distri- bués sur l'Internet, ces sites pouvant être un

Castelluccia, Claude

473

De l'Utilisation des VPNs pour l'Administration et la Scurit des Services Web  

E-print Network

VPNs (et les protocoles de sécurité associés tels IPsec et SSL) dans une architecture des services web basée sur des tunnels IPsec entre des sites distri­ bués sur l'Internet, ces sites pouvant être un

Castelluccia, Claude

474

FACULT DES ARTS ET DES SCIENCES DPARTEMENT DE COMMUNICATION  

E-print Network

-2578 Courrier électronique : carole.groleau@umontreal.ca Coordonnateur des stages : Frédéric Truax Bureau B-415 Téléphone : (514) 343-6111 poste 2763 Télécopieur : (514) 400-2578 Courrier électronique : frederic communication et politique Courrier électronique : odette.langlois@umontreal.ca Téléphone : (514) 343-6111 poste

Parrott, Lael

475

FACULT DES ARTS ET DES SCIENCES DPARTEMENT DE COMMUNICATION  

E-print Network

-2578 Courrier électronique : carole.groleau@umontreal.ca Coordonnateur des stages : Frédéric Truax Bureau B-415 Téléphone : (514) 343-6111 poste 2763 Télécopieur : (514) 400-2578 Courrier électronique : frederic (temporaire) Bureau : B-428 Courrier électronique : amelie.hudon@umontreal.ca Téléphone : (514) 343-6111 poste

Parrott, Lael

476

Facult des arts et des sciences Dpartement de science politique  

E-print Network

� l'analyse politique, en amenant ceux-ci � analyser un conflit de leur choix, � partir des concepts'analyse politique (50%). Le travail d'analyse porte sur un conflit politique s'�tant d�roul� en 2013 ou au d�but de-32). 14 janvier L'analyse politique d'un conflit � No�l et Th�rien, avant-propos, introduction et chapitre

Parrott, Lael

477

Facult des arts et des sciences Dpartement de sociologie  

E-print Network

'inférence statistique, test chi-carré, test t, ANOVA, corrélation et régression. Initiation au logiciel d'analyse statistique SPSS et utilisation du tableur Excel. OBJECTIFS D'APPRENTISSAGE Le présent cours vise à initier) Effectuer ces analyses usuelles à l'aide des logiciels Excel et SPSS; 5) Savoir émettre une critique

Parrott, Lael

478

Plan de cours Facult des arts et des sciences  

E-print Network

, Klaus et al. Protistology. 3e éd. 379 p. 2003. Kudo, R.R. 1971. Protozoology. 5e éd. Thomas Book. Lee, J.J. éd. 1985. The Illustrated Guide to the Protozoa. Society of protozoologists. Lee, J.J. et al. éd Reviers, B. de. 2002. Biologie et phylogénie des algues. Tome 1 et 2. Belin, Paris Sze, P. 1998. A b

Parrott, Lael

479

Zusammensetzung und Nhrwert des Krebsfleisches von Astacus leptodactylus  

Microsoft Academic Search

Zusammenfassung Es wurde die chemische Zusammensetzung des Krebsfleisches des SumpfkrebsesAstacus leptodactylus Esch, getrennt fr Mnnchen und Weibchen, untersucht und das Verhltnis von Lngenklasse und Fleischausbeute festgestellt.

Teofil Dabrowski; Edward Ko?akowski; Eugeniusz Soko?owski

1966-01-01

480

ber die Wirkung des Strophanthins auf das Zentralnervensystem  

Microsoft Academic Search

Zusammenfassung Strophanthin bt bei der Injektion in den Hirnventrikel des nichtnarkotisierten Tieres eine intensive Reizwirkung aus, die besonders durch eine starke Beeinflussung des Herznervensystems gekennzeichnet ist.

C. Korth; H. Marx; S. Weinberg

1937-01-01