SWR 1000: An Advanced, Medium-Sized Boiling Water Reactor, Ready for Deployment

International Nuclear Information System (INIS)

Brettschuh, Werner

2006-01-01

The latest developments in nuclear power generation technology mainly concern large-capacity plants in the 1550 -1600 MW range, or very small plants (100 - 350 MW). The SWR 1000 boiling water reactor (BWR), by contrast, offers all of the advantages of an advanced plant design, with excellent safety performance and competitive power generation costs, in the medium-capacity range (1000 - 1250 MW). The SWR 1000 is particularly suitable for countries whose power systems are not designed for large-capacity generating facilities. The economic efficiency of this medium-sized plant in comparison with large-capacity designs is achieved by deploying very simple passive safety equipment, simplified systems for plant operation, and a very simple plant configuration in which systems engineering is optimized and dependence on electrical and instrumentation and control (I and C) systems is reduced. In addition, systems and components that require protection against natural and external man-made hazards are accommodated in such a way that as few buildings as possible have to be designed to withstand the loads from such events. The fuel assemblies to be deployed in the SWR 1000 core, meanwhile, have been enlarged from a 10 x 10 rod array to a 12 x 12 array. This reduces the total number of fuel assemblies in the core and thus also the number of control rods and control rod drives, as well as in-core neutron flux monitors. The design owes its competitiveness to the fact that investment costs, maintenance costs and fuel cycle costs are all lower. In addition, refueling outages are shorter, thanks to the reduced scope of outage activities. The larger fuel assemblies have been extensively and successfully tested, as have all of the other new components and systems incorporated into the plant design. As in existing plants, the forced coolant circulation method is deployed, ensuring problem-free startup, and enabling plant operators to adjust power rapidly in the high power range (70

How can the SWR 1000 meet the economic objective?

International Nuclear Information System (INIS)

Mattern, J.

1996-01-01

Since February 1992, Siemens has been developing, in close cooperation with Germany's electric utilities, a new boiling water reactor (BWR) design concept. For the design of the new, innovative BWR, requirements of both a technical and economic nature were defined. The technical requirements mainly comprised: 1)extensive utilization of experience gained from operating plants 2)simple and straightforward systems engineering employing passive safety features 3)provision of a grace period of several days before operator intervention is required in the event of an accident 4)a significant reduction in the probability of core melt accidents 5)strengthening of the containment for the retention of fission products in order to avoid wide scale emergency response actions such as evacuation or relocation, even in the case of a core melt accident 6)high degree of user friendliness through simplification of plant operation and maintenance 7)competitive power generation costs. For large conventional power reactors, we consider nowadays that the specific investment costs do not exceed 3000 DM by kW for the plant to be competitive. Here are presented some essential characteristics of the SWR 1000, which improve the profitability and compensate some other particularities of the design which tend to increase the costs. On account of these characteristics, the SWR 1000 only require 72% of the investment costs of a large 1400 to 1500 MW plant. Concerning the electric power production specific costs, the investment costs have a larger effect on account of the capital but the electric power production costs of these two sorts of plants do not differ a lot too. (O.M.)

Effect of azadirachtin of neemix-4.5 on SWR/J mice.

Science.gov (United States)

Abou-Tarboush, F M; El-Ashmaoui, H M; Hussein, H I; Al-Rajhy, D; Al-Assiry, M

2009-10-01

Inbred normal SWR/J male and female mice, 8-10 weeks old and weighing 22.55-26.72 g, were used throughout the study. A total of 100 males and 100 females were used and were divided into 20 groups, 10 animals in each group. Azadirachtin of neemix-4.5, a commercial botanical pesticide derived from the neem tree, orally administered to male and female SWR/J mice at a dose level 9.0 mg/kg (1/10 LD50) for different treatment periods (2, 4, 6, 8 or 11.5 weeks) has produced signs of toxicity, mortality and changes in body and tissue weights of both sexes at almost all treated periods used in the present study. Moreover the oral administration of this dose level for 11.5 weeks has also resulted in some histopathological changes in the livers, kidneys and testes of treated animals compared with the control group, and the degree of these changes ranged from mild to severe in these organs of treated males. However, conflicting results have been reported concerning the toxicity of azadirachtin in mammalian species using different formulations of neem-based pesticides. It appears, therefore, that the toxicity produced by neemix-4.5 in the present study may be due to factors other than azadirachtin in this formulation.

Gen-III/III+ reactors. Solving the future energy supply shortfall. The SWR-1000 option

International Nuclear Information System (INIS)

Stosic, Z.V.

2006-01-01

Deficiency of non-renewable energy sources, growing demand for electricity and primary energy, increase in population, raised concentration of greenhouse gases in the atmosphere and global warming are the facts which make nuclear energy currently the most realistic option to replace fossil fuels and satisfy global demand. The nuclear power industry has been developing and improving reactor technology for almost five decades and is now ready for the next generation of reactors which should solve the future energy supply shortfall. The advanced Gen-III/III+ (Generation III and/or III+) reactor designs incorporate passive or inherent safety features which require no active controls or operational intervention to manage accidents in the event of system malfunction. The passive safety equipment functions according to basic laws of physics such as gravity and natural convection and is automatically initiated. By combining these passive systems with proven active safety systems, the advanced reactors can be considered to be amongst the safest equipment ever made. Since the beginning of the 90's AREVA NP has been intensively engaged in the design of two advanced Gen-III+ reactors: (i) PWR (Pressurized Water Reactor) EPR (Evolutionary Power Reactor) and (ii) BWR (Boiling Water Reactor) SWR-1000. The SWR-1000 reactor design marks a new era in the successful tradition of BWR technology. It meets the highest safety standards, including control of a core melt accident. This is achieved by supplementing active safety systems with passive safety equipment of diverse design for accident detection and control and by simplifying systems needed for normal plant operation. A short construction period, flexible fuel cycle lengths and a high fuel discharge burn-up contribute towards meeting economic goals. The SWR-1000 completely fulfils international nuclear regulatory requirements. (author)

Documentation of the Surface-Water Routing (SWR1) Process for modeling surface-water flow with the U.S. Geological Survey Modular Ground-Water Model (MODFLOW-2005)

Science.gov (United States)

Hughes, Joseph D.; Langevin, Christian D.; Chartier, Kevin L.; White, Jeremy T.

2012-01-01

A flexible Surface-Water Routing (SWR1) Process that solves the continuity equation for one-dimensional and two-dimensional surface-water flow routing has been developed for the U.S. Geological Survey three-dimensional groundwater model, MODFLOW-2005. Simple level- and tilted-pool reservoir routing and a diffusive-wave approximation of the Saint-Venant equations have been implemented. Both methods can be implemented in the same model and the solution method can be simplified to represent constant-stage elements that are functionally equivalent to the standard MODFLOW River or Drain Package boundary conditions. A generic approach has been used to represent surface-water features (reaches) and allows implementation of a variety of geometric forms. One-dimensional geometric forms include rectangular, trapezoidal, and irregular cross section reaches to simulate one-dimensional surface-water features, such as canals and streams. Two-dimensional geometric forms include reaches defined using specified stage-volume-area-perimeter (SVAP) tables and reaches covering entire finite-difference grid cells to simulate two-dimensional surface-water features, such as wetlands and lakes. Specified SVAP tables can be used to represent reaches that are smaller than the finite-difference grid cell (for example, isolated lakes), or reaches that cannot be represented accurately using the defined top of the model. Specified lateral flows (which can represent point and distributed flows) and stage-dependent rainfall and evaporation can be applied to each reach. The SWR1 Process can be used with the MODFLOW Unsaturated Zone Flow (UZF1) Package to permit dynamic simulation of runoff from the land surface to specified reaches. Surface-water/groundwater interactions in the SWR1 Process are mathematically defined to be a function of the difference between simulated stages and groundwater levels, and the specific form of the reach conductance equation used in each reach. Conductance can be

Modern light-water reactors - EPR and SWR 1000. Present status and possibilities of development and application

International Nuclear Information System (INIS)

Brettschuh, W.; Schneider, D.

2001-01-01

A number of reactor concepts are being advanced worldwide also in the light of long-term perspectives in the power economy. Activities in this respect are concentrated on the proven technologies of light-water and heavy-water reactors and on gas or liquid-metal cooled designs. Also smaller units are being considered for various applications. Framatome ANP focus on further development of the EPR and SWR 1000 light-water reactor lines. These plant concepts, which were developed in cooperation with, and with the support of, power utilities together with a number of European partners, are characterized by an even higher level of safety, especially as far as potential accidental releases are concerned, and by their competitiveness in the electricity generating market compared to other sources of energy. Given the cost structure of these plants, with approx. 60% capital costs, approx. 24% operating costs, and approx. 16% fuel cycle costs, efforts are made in particular to reduce the dominating capital cost share. For the EPR, this is to be achieved by high plant capacities, i.e. lower specific capital outlays per kilowatt installed; for the SWR 1000, mainly by means of an optimized, streamlined plant design. Moreover, installed nuclear generating capacities provide long-term assurance in calculating electricity generating costs, as they are less sensitive to the variable costs of the fuel cycle and of operation than fossil-fired plants. Commercial maturity of the SWR 1000 will be achieved after the completion of basic development in late 1999 and the ongoing detailed design steps in 2001. Also for the EPR, commercial maturity has been achieved with the completion of the basic design phase. (orig.) [de

The Swr 1000: a nuclear power plant concept with boiling water reactor for maximum safety and economy of operation

International Nuclear Information System (INIS)

Brettschuh, W.

2001-01-01

The SWR 1000 is a design concept for a light water reactor nuclear power plant that meets all requirements regarding plant safety, economic efficiency and environ-mental friendliness. As a result of the plant's safety concept, the occurrence of core damage can, for all practical intents and purposes, be ruled out. If a core melt accident should nevertheless occur, the molten core can be retained inside the RPV, thus ensuring that all consequences of such an accident remain restricted to the plant itself. The power generating costs of the SWR 1000 are lower than with those of coal-fired and combined-cycle power plants. Power generation using nuclear energy does not release carbon dioxide to the environment, thus meeting the need for sustainable protection of our global climate. (author)

External cooling: The SWR 1000 severe accident management strategy. Part 1: motivation, strategy, analysis: melt phase, vessel integrity during melt-water interaction

International Nuclear Information System (INIS)

Kolev, Nikolay Ivanov

2004-01-01

This paper provides the description of the basics behind design features for the severe accident management strategy of the SWR 1000. The hydrogen detonation/deflagration problem is avoided by containment inertization. In-vessel retention of molten core debris via water cooling of the external surface of the reactor vessel is the severe accident management concept of the SWR 1000 passive plant. During postulated bounding severe accidents, the accident management strategy is to flood the reactor cavity with Core Flooding Pool water and to submerge the reactor vessel, thus preventing vessel failure in the SWR 1000. Considerable safety margins have determined by using state of the art experiment and analysis: regarding (a) strength of the vessel during the melt relocation and its interaction with water; (b) the heat flux at the external vessel wall; (c) the structural resistance of the hot structures during the long term period. Ex-vessel events are prevented by preserving the integrity of the vessel and its penetrations and by assuring positive external pressure at the predominant part of the external vessel in the region of the molten corium pool. Part 1 describes the motivation for selecting this strategy, the general description of the strategy and the part of the analysis associated with the vessel integrity during the melt-water interaction. (author)

SWR 1000: an advanced boiling water reactor with passive safety features

International Nuclear Information System (INIS)

Brettschuh, W.

1999-01-01

The SWR 1000, an advanced BWR, is being developed by Siemens under contract from Germany's electric utilities and with the support of European partners. The project is currently in the basic design phase to be concluded in mid-1999 with the release of a site-independent safety report and costing analysis. The development goals for the project encompass competitive costs, use of passive safety systems to further reduce probabilities of occurrence of severe accidents, assured control of accidents so no emergency response actions for evacuation of the local population are needed, simplification of plant systems based on operator experience, and planning and design based on German codes, standards and specifications put forward by the Franco-German Reactor Safety Commission for future nuclear power plants equipped with PWRs, as well as IAEA specifications and the European Utility Requirements. These goals led to a plant concept with a low power density core, with large water inventories stored above the core inside the reactor pressure vessel, in the pressure suppression pool, and in other locations. All accident situations arising from power operation can be controlled by passive safety features without rise in core temperature and with a grace period of more than three days. In addition, postulated core melt is controlled by passive equipment. All new passive systems have been successfully tested for function and performance using large-scale components in experimental testing facilities at PSI in Switzerland and at the Juelich Research Centre in Germany. In addition to improvements of the safety systems, the plant's operating systems have been simplified based on operating experience. The design's safety concept, simplified operating systems and 48 months construction time yield favourable plant construction costs. The level of concept maturity required to begin offering the SWR 1000 on the power generation market is anticipated to be reached, as planned in the year

Inactivation of the Major Hemolysin Gene Influences Expression of the Nonribosomal Peptide Synthetase Gene swrA in the Insect Pathogen Serratia sp. Strain SCBI.

Science.gov (United States)

Petersen, Lauren M; LaCourse, Kaitlyn; Schöner, Tim A; Bode, Helge; Tisa, Louis S

2017-11-01

Hemolysins are important virulence factors for many bacterial pathogens, including Serratia marcescens The role of the major hemolysin gene in the insect pathogen Serratia sp. strain SCBI was investigated using both forward and reverse-genetics approaches. Introduction of the major hemolysin gene into Escherichia coli resulted in a gain of both virulence and hemolytic activity. Inactivation of this hemolysin in Serratia sp. SCBI resulted in a loss of hemolysis but did not attenuate insecticidal activity. Unexpectedly, inactivation of the hemolysin gene in Serratia sp. SCBI resulted in significantly increased motility and increased antimicrobial activity. Reverse transcription-quantitative PCR (qRT-PCR) analysis of mutants with a disrupted hemolysin gene showed a dramatic increase in mRNA levels of a nonribosomal peptide synthetase gene, swrA , which produces the surfactant serrawettin W2. Mutation of the swrA gene in Serratia sp. SCBI resulted in highly varied antibiotic activity, motility, virulence, and hemolysis phenotypes that were dependent on the site of disruption within this 17.75-kb gene. When introduced into E. coli , swrA increases rates of motility and confers antimicrobial activity. While it is unclear how inactivation of the major hemolysin gene influences the expression of swrA , these results suggest that swrA plays an important role in motility and antimicrobial activity in Serratia sp. SCBI. IMPORTANCE The opportunistic Gram-negative bacteria of the genus Serratia are widespread in the environment and can cause human illness. A comparative genomics analysis between Serratia marcescens and a new Serratia species from South Africa, termed Serratia sp. strain SCBI, shows that these two organisms are closely related but differ in pathogenesis. S. marcescens kills Caenorhabditis nematodes, while Serratia sp. SCBI is not harmful and forms a beneficial association with them. This distinction presented the opportunity to investigate potential differences

SWR 1000: The new boiling water reactor power plant concept

International Nuclear Information System (INIS)

Brettschuh, W.

1999-01-01

Siemens' Power Generation Group (KWU) is currently developing - on behalf of and in close co-operation with the German nuclear utilities and with support from various European partners - the boiling water reactor SWR 1000. This advanced design concept marks a new era in the successful tradition of boiling water reactor technology in Germany and is aimed, with an electric output of 1000 MW, at assuring competitive power generating costs compared to large-capacity nuclear power plants as well as coal-fired stations, while at the same time meeting the highest of safety standards, including control of a core melt accident. This objective is met by replacing active safety systems with passive safety equipment of diverse design for accident detection and control and by simplifying systems needed for normal plant operation on the basis of past operating experience. A short construction period, flexible fuel cycle lengths of between 12 and 24 months and a high fuel discharge burnup all contribute towards meeting this goal. The design concept fulfils international nuclear regulatory requirements and will reach commercial maturity by the year 2000. (author)

Multi-target Wastage Phenomena on Steam Generator Tubes During an SWR Event

International Nuclear Information System (INIS)

Jeong, Ji Young; Kim, Jong Man; Kim, Tae Joon; Eoh, Jae Hyuk; Choi, Jong Hyeun; Lee, Yong Bum

2011-01-01

The Korean sodium cooled fast reactor, KALIMER- 600 (Korea Advanced LIquid MEtal Reactor) of which the electric output is 600MWe, was developed. The steam generator (SG) of this system is a shell-and-tube type counter-current flow heat exchanger, which is vertically oriented with fixed tube-sheets. A direct heat exchange occurs between the shell-side sodium and the tube-side water at the SG unit. Feed-water enters the inlet nozzle at the lower part of the unit and it flows upward along the helically coiled heat transfer tubes. The inflow sodium is cooled down at the bundle region and then flows out through the sodium outlet nozzle at the bottom of the unit. The typical configuration of the KALIMER-600 SG is shown in Figure 1. In a steam generator, sodium and water are separated by the heat transfer tube wall and it makes a strong pressure boundary between the shell-side sodium and the tube-side water/steam. For this reason, if there is a small hole or crack, even with a pin hole, on heat transfer tubes, a large amount of water/steam would leak into the liquid sodium due to the high pressure difference more than 150 bars, and an exothermic sodium-water chemical reaction takes place as a result. This type of sodium-water reaction (SWR) has been considered as one of the most important safety issues to be resolved. From previous studies, it was obviously figured out that the number of ruptured tubes during an SWR event is one of the most significant factors to determine the temperature and pressure transient. Any subsequent tube rupture behavior in the vicinity of the initially postulated single ruptured tube should be evaluated by considering the single- and multi-target wastage phenomena. Wastage is defined as damage to the structural material (e.g. heat transfer tubes) due to an impingement of the highly corrosive reaction product. Since the impingement may cause wastage of the neighboring heat transfer tubes, a subsequent tube failure can occur in a very short time

Delineating chalk sand distribution of Ekofisk formation using probabilistic neural network (PNN) and stepwise regression (SWR): Case study Danish North Sea field

Science.gov (United States)

Haris, A.; Nafian, M.; Riyanto, A.

2017-07-01

Danish North Sea Fields consist of several formations (Ekofisk, Tor, and Cromer Knoll) that was started from the age of Paleocene to Miocene. In this study, the integration of seismic and well log data set is carried out to determine the chalk sand distribution in the Danish North Sea field. The integration of seismic and well log data set is performed by using the seismic inversion analysis and seismic multi-attribute. The seismic inversion algorithm, which is used to derive acoustic impedance (AI), is model-based technique. The derived AI is then used as external attributes for the input of multi-attribute analysis. Moreover, the multi-attribute analysis is used to generate the linear and non-linear transformation of among well log properties. In the case of the linear model, selected transformation is conducted by weighting step-wise linear regression (SWR), while for the non-linear model is performed by using probabilistic neural networks (PNN). The estimated porosity, which is resulted by PNN shows better suited to the well log data compared with the results of SWR. This result can be understood since PNN perform non-linear regression so that the relationship between the attribute data and predicted log data can be optimized. The distribution of chalk sand has been successfully identified and characterized by porosity value ranging from 23% up to 30%.

SWR 1000: the main design features of the advanced boiling water reactor with passive safety systems

International Nuclear Information System (INIS)

Carsten, Pasler

2007-01-01

The SWR-1000 (1000 MW) is a boiling water reactor whose economic efficiency in comparison with large-capacity designs is achieved by deploying very simple passive safety equipment, simplified systems for plant operation, and a very simple plant configuration in which systems engineering is optimized and dependence on electrical and instrumentation and control systems is reduced. In addition, systems and components that require protection against natural and external man-made hazards are accommodated in such a way that as few buildings as possible have to be designed to withstand the loads from such events. The fuel assemblies have been enlarged from a 10*10 rod array to a 12*12 array. This reduces the total number of fuel assemblies in the core and thus also the number of control rods and control rod drives, as well as in-core neutron flux monitors. The design owes its competitiveness to the fact that investment costs, maintenance costs and fuel cycle costs are all lower. In addition, refueling outages are shorter, thanks to the reduced scope of outage activities. The larger fuel assemblies have been extensively and successfully tested, as have all of the other new components and systems incorporated into the plant design. As in existing plants, the forced coolant circulation method is deployed, ensuring problem-free startup, and enabling plant operators to adjust power rapidly in the high power range (70%-100%) without moving the control rods, as well as allowing spectral-shift and stretch-out operation. The plant safety concept is based on a combination of passive safety systems and a reduced number of active safety systems. All postulated accidents can be controlled using passive systems alone. Control of a postulated core melt accident is assured with considerable safety margins thanks to passive flooding of the containment for in-vessel melt retention. The SWR-1000 is compliant with international nuclear codes and standards, and is also designed to withstand

Identification and characterization of a GDSL esterase gene located proximal to the swr quorum-sensing system of Serratia liquefaciens MG1

DEFF Research Database (Denmark)

Riedel, K.; Talker-Huiber, D.; Givskov, Michael Christian

2003-01-01

direction, designated estA, which encodes an esterase that belongs to family II of lipolytic enzymes. EstA was heterologously expressed in Escherichia coli, and the substrate specificity of the enzyme was determined in crude extracts. With the aid of zymograms visualizing EstA on polyacrylamide gels...... and by the analysis of a transcriptional fusion of the estA promoter to the promoterless lux4B genes, we showed that expression of the esterase is not regulated by the swr quorum-sensing system. An estA mutant was generated and was found to exhibit growth defects on minimal medium containing Tween 20 or Tween 80...

Dynamic characteristics and structural response of the SWR 1000 under earthquake loading conditions

International Nuclear Information System (INIS)

Bielor, E.; Brettschuh, W.; Krutzik, N.J.; Tropp, R.

2001-01-01

Based on the conceptual design documentation of the SWR 1000 reactor building as well as specified representative seismological, and soil-dynamic input data, corresponding to prospective sites as a basis, the dynamic characteristics, as well as the in-structure dynamic response of the coupled vibrating structures have been elaborated. The structural design analysis was based on a 3-dimensional mathematical model of the building in which all details of the internal structures as well as the containment including the water in the pools were represented adequately. In order to demonstrate the influence of the soil-structure interaction effects on the dynamic response results, the soil was represented by two different assumptions. At first, considering the state of the art procedures, assuming frequency independent soil capabilities (equivalent stiffnesses and damping values), time domain calculations were carried out. In the second step, based on the frequency-dependency of the soil capabilities, frequency domain calculations were performed. The structural responses obtained by means of both procedures and the same mathematical model of the structures were evaluated and compared. The suitability of the preliminary design concept are discussed and the structural response results obtained on the basis of the bearing capacity and the stresses in the characteristic regions of the structure

Visual inspection of vessel internals; Visuelle Inspektion von Kerneinbauten

Energy Technology Data Exchange (ETDEWEB)

Rabe, G. [Siemens AG KWU, Erlangen (Germany)

1999-08-01

Visual inspection has matured to a qualified testing method and has become a standard method for inspection of reactor pressure vessels. Until today, all known defects in RPV internals have been detected by visual inspection. The codes KTA 3204 and DIN 25435-4 describe the framework conditions and requirements for visual inspections, which should be adhered to to the most possible extent. Visual inspections are carried by now at all RPV internals, also at those where access is difficult and limited. The inspection robot SUSI is applied in most cases. The camera and manipulator technology meanwhile has been upgraded to a standard performance quality allowing reliable, fast and easy visual inspection. The personnel is trained accordingly, so as to keep abreast with enhancements. Qualification of the inspection system has been simplified and standardised to a large extent. (orig/CB) [Deutsch] Die Sichtpruefung ist zu einem qualifizierten Pruefverfahren gereift und hat bei der Inspektion der RDB-Einbauten einen festen Platz eingenommen. Bisher wurden alle bekannten Schaeden an den RDB-Einbauten bei der Sichtpruefung festgestellt. In der KTA 3204 und der DIN 25435-4 sind die Rahmenbedingungen und Anforderungen an die Sichtpruefung beschrieben, die es gilt, weitestgehend einzuhalten. Mittlerweile werden an allen RDB-Einbauten, auch an den nur bedingt zugaenglichen, Sichtpruefungen vorgenommen. Dabei hat das Inspektionsfahrzeug SUSI inzwischen den breitesten Raum eingenommen. Die Entwicklung der Kamera- und Manipulatortechnik hat inzwischen einen Stand erreicht, der eine sichere, schnelle und einfache Sichtpruefung zulaesst. Das Pruefpersonal wird laufend fuer die Sichtpruefung geschult und qualifiziert. Die Qualifizierung des Inspektionssystems wurde weitestgehend vereinfacht und standardisiert. (orig.)

Cytogenetic effects of sildenafil citrate (Viagra) on SWR/J mouse bone marrow cells.

Science.gov (United States)

Abou-Tarboush, Faisal Mohamed; Abdel-Samad, Mohamed Fathy

2010-10-01

The present study was conducted to investigate the cytogenetic effects of sildenafil citrate in SWR/J mouse bone marrow cells. Thirty-six males and 36 females were used and divided into four groups. Each group contained 18 animals (9 males and 9 females), weighing 30-35 g. These animals were orally administered with a single dose of 13, 26 or 40 mg/kg sildenafil citrate solution. A control group received normal saline in an identical condition. The animals were sacrificed at 12, 24 or 48 h, after the treatment. Chromosome aberrations were investigated in 50 metaphases per animal. No significant differences in the percentages of mitotic indices or in the frequencies of chromosome aberrations were observed between treated male and female mice at any doses or at any time intervals used, therefore, data from the two sexes were pooled when analyzed statistically. No significant (p < 0.05) differences in the percentages of mitotic indices or in the frequencies of chromosome aberrations were observed between sildenafil citrate-treated groups and the control group at any doses or at any time intervals used. However, the percentages of centromeric adhesions increased significantly (p < 0.01) in treated groups as compared with the control group at all doses and at all time intervals used. In conclusion, the results of the present study suggest that sildenafil citrate does not have cytogenetic effects on mouse bone marrow cells, but the centromeric adhesions induced by this drug need further studies to confirm them and to investigate the possible mechanism(s) responsible for such effect.

Developmental toxicity of orally administered sildenafil citrate (Viagra) in SWR/J mice.

Science.gov (United States)

Abou-Tarboush, Faisal Mohamed; Abdel-Samad, Mohamed Fathy; Al-Meteri, Mokhlid Hamed

2011-04-01

Normal adult inbred SWR/J mice were used to investigate the teratogenic and other possible toxic effects of various dose levels of sildenafil citrate (Viagra) on fetuses. Multiple dose levels of 6.5, 13.0, 19.5, 26.0, 32.5 or 40.0 mg of sildenafil citrate/kg body weight (which correspond to the multiples of 1, 2, 3, 4, 5 or 6 of human 50 mg Viagra, respectively) were orally administered into pregnant mice on days 7-9, 10-12 or 13-15 of gestation. On day 17 of pregnancy, all fetuses were removed and examined for toxic phenomena (embryo-fetal toxicity) and for external, internal and skeletal malformations. A total of 285 pregnant mice were used in the present study. None of the dams treated with sildenafil citrate at any of the oral dose levels used in the present study died during the experimental period and all dams treated with the drug failed to reveal overt signs of maternal toxicity. Moreover, the results of the present study clearly demonstrate that none of the multiple oral dose levels of the drug at any time interval used has induced any external, internal or skeletal malformations in the fetuses obtained from treated females. However, the dose level of 40 mg/kg body weight of sildenafil citrate has a growth suppressing effect on alive fetuses when it was administered at all the time intervals used in the present study. Furthermore, the dose levels 26.0, 32.5 and 40 mg/kg of the drug have embryo-fetal toxicity when the drug is applied on days 13-15 of gestation. The possible mechanisms involved in the embryo-fetal toxicity and fetal growth suppressing effects of sildenafil citrate were discussed. The results of this study have important implications for the widespread use of this drug.

The nuclear renaissance and AREVA's reactor designs for the 21st century. EPR and SWR-1000

International Nuclear Information System (INIS)

Stosic, Z.V.

2007-01-01

Hydro and nuclear energy are the most environmentally benign way of producing electricity on a large scale. Nuclear generated electricity releases 38 times fewer greenhouse gases than coal, 27 times fewer than oil and 15 times fewer than natural gas [9]. On a global scale nuclear power annually saves about 10% of the global CO 2 emission. European nuclear power plants save amount of CO 2 emissions corresponding with the annual emission of CO 2 from all European passenger cars [16]. Also, that is approximately twice the total estimated quantity to be avoided in Europe under the Kyoto Protocol during the period 2008-2012. In respect to main drivers - such as concerns of the global warming effect, population growth, and future energy supply shortfall, low operating costs, reduced dependence on imported gas - it is clear that 30 new nuclear reactors currently being constructed in 11 countries and another 35 and more planed during next 10 years confirm the nuclear renaissance. Participation in the construction of 100 reactors out of 443 worldwide operated in January 2006 and supplying fuel to 148 of them AREVA helps meet the 21 st century's greatest challenges: making energy available to all, protecting the planet, and acting responsibly towards future generations. With EPR and SWR-1000, AREVA NP has developed advanced design concepts of Generation III+ nuclear reactors which fully meet the most stringent requirements in terms of nuclear safety, operational reliability and economic performance. (author)

Wetting properties of fungi mycelium alter soil infiltration and soil water repellency in a γ-sterilized wettable and repellent soil.

Science.gov (United States)

Chau, Henry Wai; Goh, Yit Kheng; Vujanovic, Vladimir; Si, Bing Cheng

2012-12-01

Soil water repellency (SWR) has a drastic impact on soil quality resulting in reduced infiltration, increased runoff, increased leaching, reduced plant growth, and increased soil erosion. One of the causes of SWR is hydrophobic fungal structures and exudates that change the soil-water relationship. The objective of this study was to determine whether SWR and infiltration could be manipulated through inoculation with fungi. The effect of fungi on SWR was investigated through inoculation of three fungal strains (hydrophilic -Fusarium proliferatum, chrono-amphiphilic -Trichoderma harzianum, and hydrophobic -Alternaria sp.) on a water repellent soil (WR-soil) and a wettable soil (W-soil). The change in SWR and infiltration was assessed by the water repellency index and cumulative infiltration respectively. F. proliferatum decreased the SWR on WR-soil and slightly increased SWR in W-soil, while Alternaria sp. increased SWR in both the W-soil and the WR-soil. Conversely T. harzianum increased the SWR in the W-soil and decreased the SWR in the WR-soil. All strains showed a decrease in infiltration in W-soil, while only the F. proliferatum and T. harzianum strain showed improvement in infiltration in the WR-soil. The ability of fungi to alter the SWR and enmesh soil particles results in changes to the infiltration dynamics in soil. Copyright © 2012 The British Mycological Society. Published by Elsevier Ltd. All rights reserved.

CO2 efflux from soils with seasonal water repellency

Science.gov (United States)

Urbanek, Emilia; Doerr, Stefan H.

2017-10-01

Soil carbon dioxide (CO2) emissions are strongly dependent on pore water distribution, which in turn can be modified by reduced wettability. Many soils around the world are affected by soil water repellency (SWR), which reduces infiltration and results in diverse moisture distribution. SWR is temporally variable and soils can change from wettable to water-repellent and vice versa throughout the year. Effects of SWR on soil carbon (C) dynamics, and specifically on CO2 efflux, have only been studied in a few laboratory experiments and hence remain poorly understood. Existing studies suggest soil respiration is reduced with increasing severity of SWR, but the responses of soil CO2 efflux to varying water distribution created by SWR are not yet known.Here we report on the first field-based study that tests whether SWR indeed reduces soil CO2 efflux, based on in situ measurements carried out over three consecutive years at a grassland and pine forest sites under the humid temperate climate of the UK.Soil CO2 efflux was indeed very low on occasions when soil exhibited consistently high SWR and low soil moisture following long dry spells. Low CO2 efflux was also observed when SWR was absent, in spring and late autumn when soil temperatures were low, but also in summer when SWR was reduced by frequent rainfall events. The highest CO2 efflux occurred not when soil was wettable, but when SWR, and thus soil moisture, was spatially patchy, a pattern observed for the majority of the measurement period. Patchiness of SWR is likely to have created zones with two different characteristics related to CO2 production and transport. Zones with wettable soil or low persistence of SWR with higher proportion of water-filled pores are expected to provide water with high nutrient concentration resulting in higher microbial activity and CO2 production. Soil zones with high SWR persistence, on the other hand, are dominated by air-filled pores with low microbial activity, but facilitating O2

The influence of fire history, plant species and post-fire management on soil water repellency in a Mediterranean catchment: the Mount Carmel range, Israel

Science.gov (United States)

Keesstra, Saskia; Wittenberg, Lea; Maroulis, Jerry; Malkinson, Dan; Cerdà, Artemi; Pereira, Paulo

2016-04-01

Fire is a key factor impacting soil hydrology in many Mediterranean catchments. Soil water repellency (SWR) can stimulate land degradation processes by reducing the affinity of soil and water thereby triggering a reduction in soil fertility and increasing soil and water losses (. The effects of two consequent fires (1989 and 2005) on SWR were assessed in the Carmel Mountains, Israel. Fire history, plant recovery and post-fire management were investigated as determining factors in a time dependent system. SWR was highest in the >50 years unburnt plots, where soil under Pinus halepensis is most hydrophobic. In the most disturbed soils (twice burnt), many sites have a low to absent SWR even if the soil is very dry. The dynamics and fluctuations in SWR differ in magnitude under different plant species. The areas treated with CC (chipping of charred trees) showed a much higher SWR than areas left untreated. From these insights, a conceptual model of the reaction of SWR on multiple fires was developed. KEYWORDS: Soil water repellency, WDPT, Wildfires, Vegetation recovery, post-fire management, Mediterranean.

75 FR 54078 - International Fisheries; Pacific Tuna Fisheries; Vessel Capacity Limit in the Purse Seine Fishery...

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2010-09-03

... Environmental Policy Act and the IRFA are available at http://swr.nmfs.noaa.gov/ or may be obtained from Rod..., United States, Vanuatu, and Venezuela. The current Cooperating Non-Parties, Cooperating Fishing Entities...

Identification of eggs from different production systems based on hyperspectra and CS-SVM.

Science.gov (United States)

Sun, J; Cong, S L; Mao, H P; Zhou, X; Wu, X H; Zhang, X D

2017-06-01

1. To identify the origin of table eggs more accurately, a method based on hyperspectral imaging technology was studied. 2. The hyperspectral data of 200 samples of intensive and extensive eggs were collected. Standard normalised variables combined with a Savitzky-Golay were used to eliminate noise, then stepwise regression (SWR) was used for feature selection. Grid search algorithm (GS), genetic search algorithm (GA), particle swarm optimisation algorithm (PSO) and cuckoo search algorithm (CS) were applied by support vector machine (SVM) methods to establish an SVM identification model with the optimal parameters. The full spectrum data and the data after feature selection were the input of the model, while egg category was the output. 3. The SWR-CS-SVM model performed better than the other models, including SWR-GS-SVM, SWR-GA-SVM, SWR-PSO-SVM and others based on full spectral data. The training and test classification accuracy of the SWR-CS-SVM model were respectively 99.3% and 96%. 4. SWR-CS-SVM proved effective for identifying egg varieties and could also be useful for the non-destructive identification of other types of egg.

Can a coupled meteorology–chemistry model reproduce the ...

Science.gov (United States)

The ability of a coupled meteorology–chemistry model, i.e., Weather Research and Forecast and Community Multiscale Air Quality (WRF-CMAQ), to reproduce the historical trend in aerosol optical depth (AOD) and clear-sky shortwave radiation (SWR) over the Northern Hemisphere has been evaluated through a comparison of 21-year simulated results with observation-derived records from 1990 to 2010. Six satellite-retrieved AOD products including AVHRR, TOMS, SeaWiFS, MISR, MODIS-Terra and MODIS-Aqua as well as long-term historical records from 11 AERONET sites were used for the comparison of AOD trends. Clear-sky SWR products derived by CERES at both the top of atmosphere (TOA) and surface as well as surface SWR data derived from seven SURFRAD sites were used for the comparison of trends in SWR. The model successfully captured increasing AOD trends along with the corresponding increased TOA SWR (upwelling) and decreased surface SWR (downwelling) in both eastern China and the northern Pacific. The model also captured declining AOD trends along with the corresponding decreased TOA SWR (upwelling) and increased surface SWR (downwelling) in the eastern US, Europe and the northern Atlantic for the period of 2000–2010. However, the model underestimated the AOD over regions with substantial natural dust aerosol contributions, such as the Sahara Desert, Arabian Desert, central Atlantic and northern Indian Ocean. Estimates of the aerosol direct radiative effect (DRE) at TOA a

Effect of antiferromagnetic interfacial coupling on spin-wave resonance frequency of multi-layer film

Energy Technology Data Exchange (ETDEWEB)

Qiu, Rong-ke, E-mail: rkqiu@163.com; Cai, Wei

2017-08-15

Highlights: • A quantum approach is developed to study the SWR of a bicomponent multi-layer films. • The comparison of the SWR in films with FM and AFM interfacial coupling has been made. • The present results show the method to enhance and adjust the SWR frequency of films. - Abstract: We investigate the spin-wave resonance (SWR) frequency in a bicomponent bilayer and triple-layer films with antiferromagnetic or ferromagnetic interfacial couplings, as function of interfacial coupling, surface anisotropy, interface anisotropy, thickness and external magnetic field, using the linear spin-wave approximation and Green’s function technique. The microwave properties for multi-layer magnetic film with antiferromagnetic interfacial coupling is different from those for multi-layer magnetic film with ferromagnetic interfacial coupling. For the bilayer film with antiferromagnetic interfacial couplings, as the lower (upper) surface anisotropy increases, only the SWR frequencies of the odd (even) number modes increase. The lower (upper) surface anisotropy does not affect the SWR frequencies of the even (odd) number modes{sub .} For the multi-layer film with antiferromagnetic interfacial coupling, the SWR frequency of modes m = 1, 3 and 4 decreases while that of mode m = 2 increases with increasing thickness of the film within a proper parameter region. The present results could be useful in enhancing our fundamental understanding and show the method to enhance and adjust the SWR frequency of bicomponent multi-layer magnetic films with antiferromagnetic or ferromagnetic interfacial coupling.

Contribution to the prediction of sodium-water reactions effects: application to confinement losses inside a steam generator building of a sodium fast reactor

International Nuclear Information System (INIS)

Daudin, Kevin

2015-01-01

Study of sodium-water reaction (SWR) consequences in open air represents a challenge in the frame of safety assessments of sodium fast reactors (SFR). In case of major accident and to predict consequences of SWR, it is necessary to better appreciate phenomena and especially quantity and rate of the energy release. The objective is thus to strengthen the understanding of such reactions in order to predict with lore accuracy its consequences on mechanical equipment in the surroundings. This work focuses on three areas : research of accidental sequences, experimental investigation, and phenomenological analysis before the explosive contact. At first, a tree structure risk analysis with calculations of dangerous phenomena permitted to suggest how the contact between reactants may happen. Then, demonstrative experimental studies were performed to deepen some practical aspects of the phenomenology, like the influence of the way the reactants get in contact. Data analysis conducted to the development of a phenomenological model, implemented into a software platform for numerical simulations. Although numerous hypothesis, transient heat transfer consideration enables to reproduce experimental observations, especially the influence of mixing conditions (sodium mass and initial temperatures) on the phenomenology. This study of the premixing step of sodium-water explosion is relevant in the frame of current prediction methods of mechanical loadings on structures. (author) [fr

Application of minidisk infiltrometer to estimate water repellency in Mediterranean pine forest soils

Directory of Open Access Journals (Sweden)

Alagna Vincenzo

2017-09-01

Full Text Available Assessment of soil water repellency (SWR was conducted in the decomposed organic floor layer (duff and in the mineral soil layer of two Mediterranean pine forests, one in Italy and the other in Spain, by the widely-used water drop penetration time (WDPT test and alternative indices derived from infiltration experiments carried out by the minidisk infiltrometer (MDI. In particular, the repellency index (RI was calculated as the adjusted ratio between ethanol and water soil sorptivities whereas the water repellency cessation time (WRCT and the specifically proposed modified repellency index (RIm were derived from the hydrophobic and wettable stages of a single water infiltration experiment. Time evolution of SWR and vegetation cover influence was also investigated at the Italian site. All indices unanimously detected severe SWR conditions in the duff of the pine forests. The mineral subsoils in the two forests showed different wettability and the clay-loam subsoil at Ciavolo forest was hydrophobic even if characterized by organic matter (OM content similar to the wettable soil of an adjacent glade. It was therefore assumed that the composition rather than the total amount of OM influenced SWR. The hydraulic conductivity of the duff differed by a factor of 3.8–5.8 between the two forested sites thus influencing the vertical extent of SWR. Indeed, the mineral subsoil of Javea showed wettable or weak hydrophobic conditions probably because leaching of hydrophobic compounds was slowed or prevented at all. Estimations of SWR according to the different indices were in general agreement even if some discrepancies were observed. In particular, at low hydrophobicity levels the SWR indices gathered from the MDI tests were able to signal sub-critical SWR conditions that were not detected by the traditional WDPT index. The WRCT and modified repellency index RIm yielded SWR estimates in reasonable agreement with those obtained with the more cumbersome RI

77 FR 23463 - Endangered and Threatened Species; Take of Anadromous Fish

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2012-04-19

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Spin-wave resonance frequency in ferromagnetic thin film with interlayer exchange coupling and surface anisotropy

Science.gov (United States)

Zhang, Shuhui; Rong, Jianhong; Wang, Huan; Wang, Dong; Zhang, Lei

2018-01-01

We have investigated the dependence of spin-wave resonance(SWR) frequency on the surface anisotropy, the interlayer exchange coupling, the ferromagnetic layer thickness, the mode number and the external magnetic field in a ferromagnetic superlattice film by means of the linear spin-wave approximation and Green's function technique. The SWR frequency of the ferromagnetic thin film is shifted to higher values corresponding to those of above factors, respectively. It is found that the linear behavior of SWR frequency curves of all modes in the system is observed as the external magnetic field is increasing, however, SWR frequency curves are nonlinear with the lower and the higher modes for different surface anisotropy and interlayer exchange coupling in the system. In addition, the SWR frequency of the lowest (highest) mode is shifted to higher (lower) values when the film thickness is thinner. The interlayer exchange coupling is more important for the energetically higher modes than for the energetically lower modes. The surface anisotropy has a little effect on the SWR frequency of the highest mode, when the surface anisotropy field is further increased.

Seltsamkeitsproduktion in ultrarelativistischen p+p-Kollisionen bei 158 GeV

CERN Document Server

Billmeier, Anja

Die Rekonstruktion der zeitlichen Evolution des Universums sowie der Komposition stellarer Objekte setzt die genaue Kenntnis des Verhaltens von Kernmaterie unter extremen Bedingungen voraus. Experimentell ist in ultrarelativistischen Schwerionenkollisionen die Erzeugung eines Zustandes hochdichter stark wechselwirkender Kernmaterie denkbar, in dem der Einschluss von Quarks und Gluonen in Hadronen aufgehoben ist (Quark-Gluon- Plasma). Ein solcher ¨Ubergang von hadronischer Materie in eine partonische Phase wird in der fr¨uhen Anfangsphase des Universums sowie im Innern von Neutronensternen vermutet. Die Formation eines Quark-Gluon-Plasmas soll dabei mit Hilfe geeigneter Obersvablen des gemessenen Endzustandes nachgewiesen werden. Das NA49-Experiment am CERN-SPS erlaubt die Messung einer Vielzahl hadronischer Observablen in hochenergetischen Kollisionen verschiedener Stoßsysteme und Einschussenergien. Eine relative Erh¨ohung der Produktion seltsamer Hadronen in Schwerionenreaktionen im Vergleich zu elementa...

Serratamolide is a hemolytic factor produced by Serratia marcescens.

Directory of Open Access Journals (Sweden)

Robert M Q Shanks

Full Text Available Serratia marcescens is a common contaminant of contact lens cases and lenses. Hemolytic factors of S. marcescens contribute to the virulence of this opportunistic bacterial pathogen. We took advantage of an observed hyper-hemolytic phenotype of crp mutants to investigate mechanisms of hemolysis. A genetic screen revealed that swrW is necessary for the hyper-hemolysis phenotype of crp mutants. The swrW gene is required for biosynthesis of the biosurfactant serratamolide, previously shown to be a broad-spectrum antibiotic and to contribute to swarming motility. Multicopy expression of swrW or mutation of the hexS transcription factor gene, a known inhibitor of swrW expression, led to an increase in hemolysis. Surfactant zones and expression from an swrW-transcriptional reporter were elevated in a crp mutant compared to the wild type. Purified serratamolide was hemolytic to sheep and murine red blood cells and cytotoxic to human airway and corneal limbal epithelial cells in vitro. The swrW gene was found in the majority of contact lens isolates tested. Genetic and biochemical analysis implicate the biosurfactant serratamolide as a hemolysin. This novel hemolysin may contribute to irritation and infections associated with contact lens use.

Interplay between Hippocampal Sharp-Wave-Ripple Events and Vicarious Trial and Error Behaviors in Decision Making.

Science.gov (United States)

Papale, Andrew E; Zielinski, Mark C; Frank, Loren M; Jadhav, Shantanu P; Redish, A David

2016-12-07

Current theories posit that memories encoded during experiences are subsequently consolidated into longer-term storage. Hippocampal sharp-wave-ripple (SWR) events have been linked to this consolidation process during sleep, but SWRs also occur during awake immobility, where their role remains unclear. We report that awake SWR rates at the reward site are inversely related to the prevalence of vicarious trial and error (VTE) behaviors, thought to be involved in deliberation processes. SWR rates were diminished immediately after VTE behaviors and an increase in the rate of SWR events at the reward site predicted a decrease in subsequent VTE behaviors at the choice point. Furthermore, SWR disruptions increased VTE behaviors. These results suggest an inverse relationship between SWRs and VTE behaviors and suggest that awake SWRs and associated planning and memory consolidation mechanisms are engaged specifically in the context of higher levels of behavioral certainty. Copyright © 2016 Elsevier Inc. All rights reserved.

Development of analysis model for mid and long-term effects of sodium water reaction event in LMR

International Nuclear Information System (INIS)

Eoh, Jae Hyuk; Sim, Yoon Sub; Kim, Seong O; Kim, Yeon Sik; Kim, Eui Kwang; Wi, Myung Hwan

2002-04-01

The Sodium-Water Reaction(SWR) is important in the design consideration of a LMR steam generator. To develop the analysis code for long-term effects of SWR, investigation on the characteristics of various SWR analysis code and the assessment of an analysis model for long term effects were performed. In an event of SWR, pressure spikes of wave propagation occur at its initial stage and last for a very short time, and then bulk motion of fluid and reaction products is progressed and lasts for a long time. In a case SWR occurs, a number of hydrogen bubbles produced and sodium is entrained into the bubbles through the gas-liquid bubble interfaces by evaporation or diffusion. The partial pressure of the sodium in a hydrogen bubble is determined as a function of the bubble size, temperature, and pressure, and is rapidly decreased as its size increased. From this, it can be considered that the bulk motion in the later phase of SWR is an axial motion caused by expansion of a single-phase hydrogen gas bubble produced by a reaction in the vicinity of the leak site. Through this investigation, a preliminary simple analysis model for long-term effects of SWR was set up and sensitivity study using the system design parameters such as pressure and temperature of IHTS for KALIMER was performed. Also, a simpler analysis model using the cover gas pressure change related to the production of a hydrogen bubble in a steam generator was developed from the analyses results. These simple analysis models of the reaction site and the pressure behavior with hydrogen production can be used to develop the mid and long-term analysis code for SWR in the KALIMER steam generator design

76 FR 16595 - Endangered and Threatened Species; Extension of Public Comment Period on Proposed Range Extension...

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2011-03-24

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Influence of soil water repellency on runoff and solute loss from New Zealand pasture

Science.gov (United States)

Jeyakumar, P.; Müller, K.; Deurer, M.; van den Dijssel, C.; Mason, K.; Green, S.; Clothier, B. E.

2012-04-01

Soil water repellency (SWR) has been reported in New Zealand, but knowledge on its importance for the country's economy and environment is limited. Our recent survey on the occurrence of SWR under pasture across the North Island of New Zealand showed that most soils exhibited SWR when dry independent of climate but influenced by the soil order. SWR is discussed as an important soil surface condition enhancing run-off and the transfer of fertilizers and pesticides from agricultural land into waterways. So far, the impact of SWR on run-off has rarely been measured. We developed a laboratory-scale run-off measurement apparatus (ROMA) to quantify directly the impact of SWR on run-off from undisturbed soil slabs. We compared the run-off resulting from the run-on of water with that resulting from an ethanol (30% v/v) solution, which is a fully-wetting liquid even in severely hydrophobic soils. Thus, the experiments with the ethanol solution can be understood as a proxy measure of the wetting-up behaviour of hydrophilic soils. We conducted ROMA run-off experiments with air-dried soil slabs (460 mm long x 190 mm wide x 50 mm deep) collected from pastoral sites, representing three major soil orders in the North Island: Recent Soil (Fluvisol), Gley Soil (Gleysol), and Organic Soil (Histosol), with water followed by the ethanol solution at a run-on rate of 60 mm/h. Bromide was applied at 80 kg KBr/ha prior to the water experiments to assess potential solute losses via run-off. The air-dried soils had a high degree and persistence of SWR (contact angles, 97, 98 and 104° , and potential water drop penetration times, 42, 54 and 231 min for the Fluvisol, Gleysol and Histosol, respectively). Under identical soil and experimental conditions, water generated run-off from all soils, but in the experiments with the ethanol solution, the entire ethanol solution infiltrated into the soils. The ranking of the run-off coefficients of the soils directly reflected their ranking in

Experimental investigation of solid sodium-water reaction: tests results and phenomenological analysis

International Nuclear Information System (INIS)

Daudin, K.; Beauchamp, F.; Proust, C.

2014-01-01

Sodium-Water Reaction (SWR) is an issue one has to be capable to deal with for the next generation of nuclear reactors (SFR for GEN IV). The background of these experiments is the improvement of safety demonstration regarding SWR in an open volume. This experimental campaign is conducted at the CEA Cadarache inside a cylindrical reactor filled with inert gas. The sodium is inside a loading pot and water comes into contact by immersion. SWR and its physical effects are followed by different pressure and temperature sensors. The results show a limit to the overpressure increasing sodium mass. Global assessment of physical effects of SWR contributes to put forward the relative nature of phenomena with geometric configuration, and the importance of scale effects. (authors)

Reliability and improvement of RODOS results for a BWR plant; Erhoehung der Zuverlaessigkeit der RODOS-Ergebnisse fuer eine SWR-Anlage

Energy Technology Data Exchange (ETDEWEB)

Loeffler, H.; Cester, F.; Sonnenkalb, M.; Klein-Hessling, W.; Voggenberger, T.

2009-06-15

Decision support systems such as RODOS aim to support the responsible authorities by providing estimates for the possible radiological consequences in case of an event in a nuclear plant. The prognosis of quantity, composition and time of occurrence of a release from the plant (''source term'') in the so-called pre-release phase is one of the foundations with high relevance for this purpose. Within previous projects source term prognosis tools have been developed and applied exemplarily for a PWR. At the end of 2005 GRS has finalized a PSA level 2 for a plant of the SWR-69 type. On this basis improved versions of the source term prognosis tools QPRO (probabilistic) and ASTRID (deterministic) have been created for a BWR and tested in an emergency exercise in a BWR. The further development of QPRO has been related in particular to the structure of the probabilistic network and the precalculated source terms. The activities for the adaptation of ASTRID focus on the creation of the dataset for the BWR coolant loop and the containment. In the emergency exercise the manageability of QPRO but also of ASTRID has been proven. Further, the first phases of the accident progression have been well identified. However, the exercise scenario developed into a very unlikely sequence with partial core melt, and the reactor building ventilation was shut off just at a critical moment. Therefore the source term prognoses deviate from the exercise scenario. Starting from these experiences with the development and application of QPRO and ASTRID recommendations are given for the further improvement of the reliability of the source term prognosis for RODOS. In general it can be stated that the development status of QPRO and ASTRID is definitely advanced compared to the presently still prevailing source term prognosis methods. Therefore it is recommended to develop plant specific versions of these codes and to apply them.

Optogenetically Blocking Sharp Wave Ripple Events in Sleep Does Not Interfere with the Formation of Stable Spatial Representation in the CA1 Area of the Hippocampus.

Directory of Open Access Journals (Sweden)

Krisztián A Kovács

Full Text Available During hippocampal sharp wave/ripple (SWR events, previously occurring, sensory input-driven neuronal firing patterns are replayed. Such replay is thought to be important for plasticity-related processes and consolidation of memory traces. It has previously been shown that the electrical stimulation-induced disruption of SWR events interferes with learning in rodents in different experimental paradigms. On the other hand, the cognitive map theory posits that the plastic changes of the firing of hippocampal place cells constitute the electrophysiological counterpart of the spatial learning, observable at the behavioral level. Therefore, we tested whether intact SWR events occurring during the sleep/rest session after the first exploration of a novel environment are needed for the stabilization of the CA1 code, which process requires plasticity. We found that the newly-formed representation in the CA1 has the same level of stability with optogenetic SWR blockade as with a control manipulation that delivered the same amount of light into the brain. Therefore our results suggest that at least in the case of passive exploratory behavior, SWR-related plasticity is dispensable for the stability of CA1 ensembles.

Numerical thermal-hydraulics study on sodium-water reaction phenomena

International Nuclear Information System (INIS)

Takashi, Takata; Akira, Yamaguchi

2003-01-01

A new computational program SERAPHIM (Sodium-watEr Reaction Analysis: PHysics of Interdisciplinary Multi-phase flow) is developed to investigate the Sodium-Water Reaction (SWR) phenomena based on parallel computation technology. A compressible three-fluid (liquid water, liquid sodium and mixture gas) and one-pressure model is adopted for multi-phase calculation. The Highly Simplified Maker And Cell (HSMAC) method considering with compressibility is implemented as the numerical solution. The Message-Passing Interface (MPI) is used for the parallel computation. Two types of reactions are considered for the SWR modeling; one is a surface reaction and the other is a gas phase reaction. The surface reaction model assumes that liquid sodium reacts with water vapor on the surface of liquid sodium. An analogy of heat transfer and mass transfer is applied in this model. Reaction heating vaporizes liquid sodium resulting in the gas phase reaction. The ab initio molecular orbital method is applied to investigate the reaction mechanism and evaluate the reaction rate described by the Arrhenius law. A performance of parallel computation is tested on the cluster-PC (16 CPUs) system. The execution time becomes 17.1 times faster in case of 16 CPUs. It seems promising that the SERAPHIM code is practicable for large-scale analysis of the SWR phenomena. Three-dimensional SWR analyses are also carried out to investigate the characteristics of the thermal-hydraulics with the SWR and an influence of initial pressure (0.2 MPa and 0.6 MPa) on an early stage of the SWR phenomenon. As a result, distribution of a gas region, in which water vapor or product of the SWR such as hydrogen and sodium hydroxide exits, velocity and high temperature region differs by 0.2 MPa and 0.6 MPa conditions. However, the maximum gas temperature has an upper bounding and is almost constant both in the analyses. The reason of the upper bounding is attributed to the fact that a hydrogen gas covers up a liquid

N-Acyl-L-homoserine lactone autoinducers control production of an extracellular lipopeptide biosurfactant required for swarming motility of Serratia liquefaciens MG1

DEFF Research Database (Denmark)

Lindum, Peter Wurtz; Anthoni, U; Christophersen, Carsten

1998-01-01

A nonswarming Serratia liquefaciens mutant deficient in serrawettin W2 production was constructed by transposon mutagenesis. Sequence homology indicated that insertion had occurred in gene swrA, which encodes a putative peptide synthetase. Expression of swrA is controlled by quorum sensing....

The effect of sidewall roughness on line edge roughness in top-down scanning electron microscopy images

Science.gov (United States)

Verduin, T.; Lokhorst, S. R.; Kruit, P.; Hagen, C. W.

2015-03-01

We have investigated in a numerical study the determination of sidewall roughness (SWR) from top down scanning electron microscopy (SEM) images. In a typical metrology application, top-down SEM images are acquired in a (critical-dimension) SEM and the roughness is analyzed. However, the true size, shape and roughness characteristics of resist features are not fully investigated in the analysis of top-down SEM images. In reality, rough resist features are complex three-dimensional structures and the characterization naturally extends to the analysis of SWR. In this study we randomly generate images of rough lines and spaces, where the lines are made of PMMA on a silicon substrate. The lines that we study have a length of 2 µm, a width of 32nm and a height of 32 nm. The SWR is modeled by using the power spectral density (PSD) function of Palasantzas, which characterizes roughness by the standard deviation σ, correlation length ξ and roughness exponent α . The actual roughness is generated by application of the method of Thorsos in two dimensions. The images are constructed by using a home-built program for simulating electron-specimen interactions. The program that we have developed is optimized for complex arbitrary geometries and large number of incident low energy primary electrons by using multi-core CPUs and GPUs. The program uses the dielectric function model for inelastic scattering events and has an implementation specifically for low energy electrons. A satisfactory comparison is made between the secondary electron yields from the home-built program and another program found in literature. In order to reduce the risk of shrinkage, we use a beam energy of 300 eV and a spot size of 3 nm. Each pixel is exposed with 20 electrons on average (≍ 276 µC/cm2), following the Poisson distribution to account for illumination shot noise. We have assumed that the detection of electrons is perfect and does not introduce additional noise. We measure line edge

How the origin of organic compounds affects vegetation patchiness and regime shifts in ecosystems

NARCIS (Netherlands)

Dekker, S.C.; Nierop, K.G.J.; Mao, J.

2012-01-01

Soil water repellency (SWR) is a common property of soils and has been reported from all inhabited continents. It can have negative consequences for plant growth due to stagnation of water infiltration. Recently, the understanding of SWR has increased, mainly for the soil physical mechanisms.

Two separate regulatory systems participate in control of swarming motility of Serratia liquefaciens MG1

DEFF Research Database (Denmark)

Givskov, M; Ostling, J; Eberl, L

1998-01-01

Swarming motility of Serratia liquefaciens MG1 requires the expression of two genetic loci, flhDC and swrI. Here we demonstrate that the products of the flhDC operon (the flagellar master regulator) and the swrI gene (the extracellular signal molecule N-butanoyl-L-homoserine lactone) are global...

Effect of processing routes on microstructure, electrical and dielectric behavior of Mg-doped CaCu3Ti4O12 electro-ceramic

Science.gov (United States)

Singh, Laxman; Rai, U. S.; Mandal, K. D.; Rai, Alok Kumar

2013-09-01

In the present communication, data on magnesium-doped calcium copper titanate CaCu2.90Mg0.10Ti4O12 (CCMTO) electro-ceramic, synthesized by the semi-wet route (SWR), ball-milled route (BMR) and solid-state route (SSR), is characterized by TG-DTA, XRD, SEM, EDX and TEM techniques. XRD confirmed the formation of single phase in CCMTO ceramic. The CuO phase present at grain boundaries in SWR ceramic was shown by the SEM micrograph, which was verified by EDX. The TEM image of SWR ceramic shows nanocrystalline particles in the range 80±20 nm. The value of the dielectric constant of SWR ( ɛ r ˜20091) ceramic is higher than those of BMR and SSR ( ɛ r ˜1247) ceramics at 1 kHz at 450 K. A dielectric relaxation has been observed in the frequency range 100 Hz-100 kHz. The high-temperature dielectric dispersion shows one large low-frequency response and two Debye-type relaxations. The impedance and modulus studies show the highest grain-boundary resistance for BMR ceramic.

Effects of Ramadan Gasting on Postural Balance and Attentional Capacities in Elderly People.

Science.gov (United States)

Laatar, R; Borji, R; Baccouch, R; Zahaf, F; Rebai, H; Sahli, S

2016-01-01

To evaluate the effects of Ramadan fasting on postural balance and attentional capacities in older adults. the Neurophysiology department of a University Hospital. Fifteen males aged between 65 and 80 years were asked to perform a postural balance protocol and a simple reaction time (SRT) test in four testing phases: one week before Ramadan (BR), during the second (SWR) and the fourth week of Ramadan (FWR) and 3 weeks after Ramadan (AR). Postural balance measurements were recorded in the bipedal stance in four different conditions: firm surface/eyes open (EO), firm surface/eyes closed (EC), foam surface/EO and foam surface/EC using a force platform. Results of the present study demonstrated that center of pressure (CoP) mean velocity (CoPVm), medio-lateral length (CoPLX) and antero-posterior length (CoPLY) were significantly higher during the SWR than BR. Likewise, values of CoPVm and CoPLX increased significantly during the FWR compared to BR. The CoPLX decreased significantly in the FWR compared to the SWR. Values of CoPVm and CoPLX were significantly higher AR in comparison with BR. In addition, SRT values increased significantly during the SWR and the FWR than BR. Ramadan fasting affects postural balance and attentional capacities in the elderly mainly in the SWR and it may, therefore, increase the risk of fall and fall-related injuries. More than three weeks are needed for older adults to recover postural balance impairment due to Ramadan fasting.

Municipal climate protection as a measure for sustainable energy supply under the conditions of globalization and liberalization? An empirical investigation considering the municipal actors and public utility companies; Kommunaler Klimaschutz als Instrument einer nachhaltigen Energieversorgung unter den Bedingungen von Globalisierung und Liberalisierung? Eine empirische Untersuchung unter besonderer Beruecksichtigung der Akteure Kommune und Stadtwerke

Energy Technology Data Exchange (ETDEWEB)

Bielitza-Mimjaehner, Ralf

2007-03-01

diesen Gruenden sieht die Enquete-Kommission des Deutschen Bundestages ''Nachhaltige Energieversorgung unter den Bedingungen von Globalisierung und Liberalisierung'' in kommunalen Klimaschutzaktivitaeten als einen Bestandteil eines Instrumenten-Mixes, der einen langfristigen Umbau des derzeitigen Energiesystems in Richtung nachhaltige Energieversorgung initiieren soll. Problematischerweise werden die Auswirkungen der Globalisierung und Liberalisierung auf die kommunale Ebene von der Enquete-Kommission allerdings weder aufgegriffen noch reflektiert. Das Promotionsvorhaben fragt nach den Auswirkungen auf die Akteure des kommunalen Klimaschutzes und nach den Bedingungen, die die Globalisierung und Liberalisierung an einen kommunalen Klimaschutz als einen Bestandteil einer nachhaltigen Energieversorgung stellt. Das Projekt rueckt hierbei insbesondere die Akteure Kommune und Stadtwerke in den Mittelpunkt der Betrachtung und kommt zu teilweise sehr ueberraschenden Ergebnissen. (orig.)

Suitability of parametric models to describe the hydraulic properties of an unsaturated coarse sand and gravel

Science.gov (United States)

Mace, Andy; Rudolph, David L.; Kachanoski , R. Gary

1998-01-01

The performance of parametric models used to describe soil water retention (SWR) properties and predict unsaturated hydraulic conductivity (K) as a function of volumetric water content (θ) is examined using SWR and K(θ) data for coarse sand and gravel sediments. Six 70 cm long, 10 cm diameter cores of glacial outwash were instrumented at eight depths with porous cup ten-siometers and time domain reflectometry probes to measure soil water pressure head (h) and θ, respectively, for seven unsaturated and one saturated steady-state flow conditions. Forty-two θ(h) and K(θ) relationships were measured from the infiltration tests on the cores. Of the four SWR models compared in the analysis, the van Genuchten (1980) equation with parameters m and n restricted according to the Mualem (m = 1 - 1/n) criterion is best suited to describe the θ(h) relationships. The accuracy of two models that predict K(θ) using parameter values derived from the SWR models was also evaluated. The model developed by van Genuchten (1980) based on the theoretical expression of Mualem (1976) predicted K(θ) more accurately than the van Genuchten (1980) model based on the theory of Burdine (1953). A sensitivity analysis shows that more accurate predictions of K(θ) are achieved using SWR model parameters derived with residual water content (θr) specified according to independent measurements of θ at values of h where θ/h ∼ 0 rather than model-fit θr values. The accuracy of the model K(θ) function improves markedly when at least one value of unsaturated K is used to scale the K(θ) function predicted using the saturated K. The results of this investigation indicate that the hydraulic properties of coarse-grained sediments can be accurately described using the parametric models. In addition, data collection efforts should focus on measuring at least one value of unsaturated hydraulic conductivity and as complete a set of SWR data as possible, particularly in the dry range.

Strahlungsfeldbedingungen bei der Ionisationsdosimetrie

Science.gov (United States)

Krieger, Hanno

Bei der Dosimetrie von Photonenstrahlungen mit luftgefüllten Ionisationskammern werden in diesem Kapitel zwei Grenzfälle unterschieden. Der eine Fall ist die Bedingung des so genannten Sekundärelektronengleichwichts im Kammervolumen. In diesem Fall bestimmen ausschließlich die Photonen im Messvolumen die dosimetrische Anzeige. Der zweite Grenzfall ist gegeben, wenn das Luftvolumen und die Kammer das Strahlungsfeld im Phantom so wenig stören, dass der Sekundärelektronenfluss unverändert bleibt. Diese Bedingungen nennt man BRAGG-GRAY-Bedingungen. Beide Grenzfälle sind in der Praxis nur näherungsweise zu verwirklichen. Abweichungen müssen durch entsprechende Korrekturen oder Kalibrierungen berücksichtigt werden.

Analytical analysis of the temporal asymmetry between seawater intrusion and retreat

Science.gov (United States)

Rathore, Saubhagya Singh; Zhao, Yue; Lu, Chunhui; Luo, Jian

2018-01-01

The quantification of timescales associated with the movement of the seawater-freshwater interface is useful for developing effective management strategies for controlling seawater intrusion (SWI). In this study, for the first time, we derive an explicit analytical solution for the timescales of SWI and seawater retreat (SWR) in a confined, homogeneous coastal aquifer system under the quasi-steady assumption, based on a classical sharp-interface solution for approximating freshwater outflow rates into the sea. The flow continuity and hydrostatic equilibrium across the interface are identified as two primary mechanisms governing timescales of the interface movement driven by an abrupt change in discharge rates or hydraulic heads at the inland boundary. Through theoretical analysis, we quantified the dependence of interface-movement timescales on porosity, hydraulic conductivity, aquifer thickness, aquifer length, density ratio, and boundary conditions. Predictions from the analytical solution closely agreed with those from numerical simulations. In addition, we define a temporal asymmetry index (the ratio of the SWI timescale to the SWR timescale) to represent the resilience of the coastal aquifer in response to SWI. The developed analytical solutions provide a simple tool for the quick assessment of SWI and SWR timescales and reveal that the temporal asymmetry between SWI and SWR mainly relies on the initial and final values of the freshwater flux at the inland boundary, and is weakly affected by aquifer parameters. Furthermore, we theoretically examined the log-linearity relationship between the timescale and the freshwater flux at the inland boundary, and found that the relationship may be approximated by two linear functions with a slope of -2 and -1 for large changes at the boundary flux for SWI and SWR, respectively.

A Sustainable Historic Waterfront Revitalization Decision Support Tool for Attracting Tourists

Directory of Open Access Journals (Sweden)

Ali Keyvanfar

2018-01-01

Full Text Available Waterfront revitalization would be an effective strategy to preserve heritages, conserve the contaminated or abandoned site and inspire the identity and authenticity. However, there is no decision support tool to quantify and evaluate the sustainability accreditation of waterfronts in tourism attraction. This research aimed to identify the most potential waterfront typology in tourism attraction and develop the waterfront sustainable revitalization (SWR index assessment model. The SWR index can assist policy makers and urban developers to analyze the heritage waterfronts using Analytical Hierarchy Process (AHP method. The research found out the historic waterfront has the highest potential in tourism attraction among other typologies. And, pollution moderator is mostly important sub-criterion in tourism absorption (WC2.2 = 0.1294; followed by Identity (WC1.2 = 0.1272 and Safety and well-being (WC1.3 = 0.1043. The SWR index can be applied in any waterfronts in heritage cities around the world, while this research implemented it as a case study in Bandar Maharani, Muar, Malaysia. It resulted Bandar Maharani was ranked as grade C; means, usable waterfront to which extent environmental, social and physical revitalization are needed. The SWR index can be coupled with other decision-making methods in future, to reduce its inconsistencies and increasing accuracy.

Results of VGB research work with respect to operation of BWR pipes made of austenitic SS; Ergebnisse des VGB-Forschungsvorhabens zur Absicherung des Betriebsverhaltens austenitischer Staehle in SWR-Rohrleitungen

Energy Technology Data Exchange (ETDEWEB)

Kilian, R [Siemens AG Energieerzeugung KWU, Erlangen (Germany); Bruemmer, G [Hamburgische Electricitaets-Werke AG, Hamburg (Germany)

1998-11-01

The VGB research project was to examine and characterize various, operation-induced impacts on the crack formation in stabilized austenitic steels, caused by intercrystalline stress corrosion cracking as a result of sensitization after chromium depletion at the grain boundaries. The results of this project as well as available operating experience show that the measures taken so far for the future operation of the German BWR plants, for avoiding in these plants intercrystalline stress corrosion cracking, correspond to the state of the art and achieve the wanted purpose. These measures are: use of optimized material W-No. 1.4550 with reduced carbon contents; use of optimized welding techniques for reducing the heat input and the welding shrinkage (cold deformation.); optimized preparation of welding work in order to avoid shape defects during welding (eg. edge misalignment, defective mash welds); reduction of tensile stresses occurring during welding; compliance with the recent VGB water chemistry code. (orig./CB) [Deutsch] Das VGB-Forschungsvorhaben sollte verschieden gelagerte Einfluesse auf die Rissbildung im Betrieb von stabilisierten austenitischen Staehlen, verursacht durch interkristalline Spannungsrisskorrosion infolge Sensbilisierung durch Chromverarmung an den Korngrenzen, systematisch erfassen. Aus den Forschungsergebnissen dieses VGB-Programms sowie den bisher vorliegenden Betriebserfahrungen ist festzuhalten, dass die bisher durchgefuehrten Massnahmen fuer den zukuenftigen Betrieb der deutschen SWR-Anlagen zur Vermeidung von interkristalliner Spannungsrisskorrosion zielgerichtet waren und dem heutigen Wissensstand entsprechen. Diese Massnahmen sind: 1. Einsatz von optimiertem Werkstoff W.-Nr. 1.4550 mit abgesenktem Kohlenstoffgehalt; 2. Einsatz von optimierten Schweissverfahren zur Verminderung der Waermeeinbringung und zur Verringerung des Schweissschrumpfes (Kaltverformung.); 3. Durchfuehrung einer optimierten Schweissnahtvorbereitung zur Vermeidung

Soil-Water Repellency Characteristic Curves for Soil Profiles with Organic Carbon Gradients

DEFF Research Database (Denmark)

Wijewardana, Nadeeka Senani; Muller, Karin; Moldrup, Per

2016-01-01

Soil water repellency (SWR) of soils is a property with significant consequences for agricultural water management, water infiltration, contaminant transport, and for soil erosion. It is caused by the presence of hydrophobic agents on mineral grain surfaces. Soils were samples in different depths......, and the sessile drop method (SDM). The aim to (i) compare the methods, (ii) characterize the soil-water repellency characteristic curves (SWRCC) being SWR as a function of the volumetric soil-water content (θ) or matric potential (ψ), and (iii) find relationships between SWRCC parameters and SOC content. The WDPT...... at three forest sites in Japan and three pasture sites in New Zealand, covering soil organic carbon (SOC) contents between 1 and 26%. The SWR was measured over a range of water contents by three common methods; the water drop penetration time (WDPT) test, the molarity of an ethanol droplet (MED) method...

Disruption of perineuronal nets increases the frequency of sharp wave ripple events.

Science.gov (United States)

Sun, Zhi Yong; Bozzelli, P Lorenzo; Caccavano, Adam; Allen, Megan; Balmuth, Jason; Vicini, Stefano; Wu, Jian-Young; Conant, Katherine

2018-01-01

Hippocampal sharp wave ripples (SWRs) represent irregularly occurring synchronous neuronal population events that are observed during phases of rest and slow wave sleep. SWR activity that follows learning involves sequential replay of training-associated neuronal assemblies and is critical for systems level memory consolidation. SWRs are initiated by CA2 or CA3 pyramidal cells (PCs) and require initial excitation of CA1 PCs as well as participation of parvalbumin (PV) expressing fast spiking (FS) inhibitory interneurons. These interneurons are relatively unique in that they represent the major neuronal cell type known to be surrounded by perineuronal nets (PNNs), lattice like structures composed of a hyaluronin backbone that surround the cell soma and proximal dendrites. Though the function of the PNN is not completely understood, previous studies suggest it may serve to localize glutamatergic input to synaptic contacts and thus influence the activity of ensheathed cells. Noting that FS PV interneurons impact the activity of PCs thought to initiate SWRs, and that their activity is critical to ripple expression, we examine the effects of PNN integrity on SWR activity in the hippocampus. Extracellular recordings from the stratum radiatum of horizontal murine hippocampal hemisections demonstrate SWRs that occur spontaneously in CA1. As compared with vehicle, pre-treatment (120 min) of paired hemislices with hyaluronidase, which cleaves the hyaluronin backbone of the PNN, decreases PNN integrity and increases SWR frequency. Pre-treatment with chondroitinase, which cleaves PNN side chains, also increases SWR frequency. Together, these data contribute to an emerging appreciation of extracellular matrix as a regulator of neuronal plasticity and suggest that one function of mature perineuronal nets could be to modulate the frequency of SWR events. © 2017 Wiley Periodicals, Inc.

Laser diagnosis and plasma technology: fundamentals for reduction of emissions and fuel consumption in DI internal combustion engines. Spray/wall-interaction under diesel engine conditions. Final report; Laserdiagnostische und plasmatechnologische Grundlagen zur Verminderung von Emissionen und Kraftstoffverbrauch von DI-Verbrennungsmotoren. Spray/Wand-Wechselwirkung bei der motorischen Einspritzung. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Renz, U.; Meingast, U.

2001-02-01

Spray/wall-interaction under diesel engine conditions is not yet investigated extensively in detail with high spatial resolution and high time resolution as those experiments require extremely accurate techniques. Numerical modelling to predict fluiddynamic and heat transfer processes are validated mostly under non engine conditions. The processes during spray/wall interaction under internal combustion engine conditions were investigated experimentally in an injection chamber using enhanced laser optical methods. To enable validation and development of numerical spray/wall models the data was collected under well known and reproducible conditions. Microscopic visualisation tools, Phase-Doppler Anemometry (PDA) to measure droplet diameter and velocity as well as fluorescence based film measurement technique and high speed surface thermocouples to determine the wall heat flux were used. The numerical predictions of the spray wall interaction using Computational Fluid Dynamics (CFD) including two spray/wall models from the literature show qualitatively good agreement with the experiments. However, quantitatively some insufficiencies are observed because the models base on experiments under atmospheric conditions disregarding the influences of high pressure and high temperature. Here more detailed investigation is necessary in the future. The present results build up a comprehensive basis to validate future models and their interaction. Progress was done in using measurement techniques to investigate complex mechanisms under challenging conditions. (orig.) [German] Die Spray/Wand Wechselwirkung unter dieselmotorischen Bedingungen ist bisher nicht mit hoher Zeit- und Ortsaufloesung umfassend charakterisiert worden, weil deren Untersuchung hohe Anforderungen an die Messtechniken stellt. Numerische Modelle zur Vorhersage der Stroemungs- und Waermetransportvorgaenge sind nur teilweise unter reale Bedingungen verifiziert worden. Die Vorgaenge beim Auftreffen eines

Improvement on reaction model for sodium-water reaction jet code and application analysis

International Nuclear Information System (INIS)

Itooka, Satoshi; Saito, Yoshinori; Okabe, Ayao; Fujimata, Kazuhiro; Murata, Shuuichi

2000-03-01

In selecting the reasonable DBL on steam generator (SG), it is necessary to improve analytical method for estimating the sodium temperature on failure propagation due to overheating. Improvement on sodium-water reaction (SWR) jet code (LEAP-JET ver.1.30) and application analysis to the water injection tests for confirmation of code propriety were performed. On the improvement of the code, a gas-liquid interface area density model was introduced to develop a chemical reaction model with a little dependence on calculation mesh size. The test calculation using the improved code (LEAP-JET ver.1.40) were carried out with conditions of the SWAT-3·Run-19 test and an actual scale SG. It is confirmed that the SWR jet behavior on the results and the influence to analysis result of a model are reasonable. For the application analysis to the water injection tests, water injection behavior and SWR jet behavior analyses on the new SWAT-1 (SWAT-1R) and SWAT-3 (SWAT-3R) tests were performed using the LEAP-BLOW code and the LEAP-JET code. In the application analysis of the LEAP-BLOW code, parameter survey study was performed. As the results, the condition of the injection nozzle diameter needed to simulate the water leak rate was confirmed. In the application analysis of the LEAP-JET code, temperature behavior of the SWR jet was investigated. (author)

Can captive populations function as sources of genetic variation for reintroductions into the wild? A case study of the Arabian oryx from the Phoenix Zoo and the Shaumari Wildlife Reserve, Jordan

Science.gov (United States)

Ochoa, Alexander; Wells, Stuart A.; West, Gary; Al-Smadi, Ma’en; Redondo, Sergio A.; Sexton, Sydnee R.; Culver, Melanie

2016-01-01

The Arabian oryx (Oryx leucoryx) historically ranged across the Arabian Peninsula and neighboring countries until its extirpation in 1972. In 1963–1964 a captive breeding program for this species was started at the Phoenix Zoo (PHX); it ultimately consisted of 11 animals that became known as the ‘World Herd’. In 1978–1979 a wild population was established at the Shaumari Wildlife Reserve (SWR), Jordan, with eight descendants from the World Herd and three individuals from Qatar. We described the mtDNA and nuclear genetic diversity and structure of PHX and SWR. We also determined the long-term demographic and genetic viability of these populations under different reciprocal translocation scenarios. PHX displayed a greater number of mtDNA haplotypes (n = 4) than SWR (n = 2). Additionally, PHX and SWR presented nuclear genetic diversities of N¯AN¯A = 2.88 vs. 2.75, H¯OH¯O = 0.469 vs. 0.387, and H¯EH¯E = 0.501 vs. 0.421, respectively. Although these populations showed no signs of inbreeding (F¯ISF¯IS ≈ 0), they were highly differentiated (G′′STGST′′ = 0.580; P populations can function as sources of genetic variation for reintroduction programs, we recommend promoting mutual and continuous gene flow with wild populations to ensure the long-term survival of this species.

Evaluation of a sodium-water reaction event caused by steam generator tubes break in the prototype generation IV sodium-cooled fast reactor

Energy Technology Data Exchange (ETDEWEB)

Ahn, Sang June; Ha, Kwi Seok; Chang, Won Pyo; Kang, Seok Hun; Lee, Kwi Lim; Choi, Chi Woong; Lee, Seung Won; Yoo, Jin; Jeong, Jae Ho; Jeong, Tae Kyeong [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2016-08-15

The prototype generation IV sodium-cooled fast reactor (PGSFR) has been developed by the Korea Atomic Energy Research Institute. This reactor uses sodium as a reactor coolant to transfer the core heat energy to the turbine. Sodium has chemical characteristics that allow it to violently react with materials such as a water or steam. When a sodium–water reaction (SWR) occurs due to leakage or breakage of steam generator tubes, high-pressure waves and corrosive reaction products are produced, which threaten the structural integrity of the components of the intermediate heat-transfer system (IHTS) and the safety of the primary heat-transfer system (PHTS). In the PGSFR, SWR events are included in the design-basis event. This event should be analyzed from the viewpoint of the integrities of the IHTS and fuel rods. To evaluate the integrity of the IHTS based on the consequences of the SWR, the behaviors of the generated high-pressure waves are analyzed at the major positions of a failed IHTS loop using a sodium–water advanced analysis method-II code. The integrity of the fuel rods must be consistently maintained below the safety acceptance criteria to avoid the consequences of the SWR. The integrity of the PHTS is evaluated using the multidimensional analysis of reactor safety-liquid metal reactor code to model the whole plant.

A multi-step pathway connecting short sleep duration to daytime somnolence, reduced attention, and poor academic performance: an exploratory cross-sectional study in teenagers.

Science.gov (United States)

Perez-Lloret, Santiago; Videla, Alejandro J; Richaudeau, Alba; Vigo, Daniel; Rossi, Malco; Cardinali, Daniel P; Perez-Chada, Daniel

2013-05-15

A multi-step causality pathway connecting short sleep duration to daytime somnolence and sleepiness leading to reduced attention and poor academic performance as the final result can be envisaged. However this hypothesis has never been explored. To explore consecutive correlations between sleep duration, daytime somnolence, attention levels, and academic performance in a sample of school-aged teenagers. We carried out a survey assessing sleep duration and daytime somnolence using the Pediatric Daytime Sleepiness Scale (PDSS). Sleep duration variables included week-days' total sleep time, usual bedtimes, and absolute weekday to-weekend sleep time difference. Attention was assessed by d2 test and by the coding subtest from the WISC-IV scale. Academic performance was obtained from literature and math grades. Structural equation modeling was used to assess the independent relationships between these variables, while controlling for confounding effects of other variables, in one single model. Standardized regression weights (SWR) for relationships between these variables are reported. Study sample included 1,194 teenagers (mean age: 15 years; range: 13-17 y). Sleep duration was inversely associated with daytime somnolence (SWR = -0.36, p academic results (SWR = 0.18, p academic achievements (SWR = -0.16, p sleep duration influenced attention through daytime somnolence (p academic achievements through reduced attention (p academic achievements correlated with reduced attention, which in turn was related to daytime somnolence. Somnolence correlated with short sleep duration.

Evaluation of a Sodium–Water Reaction Event Caused by Steam Generator Tubes Break in the Prototype Generation IV Sodium-cooled Fast Reactor

Directory of Open Access Journals (Sweden)

Sang June Ahn

2016-08-01

Full Text Available The prototype generation IV sodium-cooled fast reactor (PGSFR has been developed by the Korea Atomic Energy Research Institute. This reactor uses sodium as a reactor coolant to transfer the core heat energy to the turbine. Sodium has chemical characteristics that allow it to violently react with materials such as a water or steam. When a sodium–water reaction (SWR occurs due to leakage or breakage of steam generator tubes, high-pressure waves and corrosive reaction products are produced, which threaten the structural integrity of the components of the intermediate heat-transfer system (IHTS and the safety of the primary heat-transfer system (PHTS. In the PGSFR, SWR events are included in the design-basis event. This event should be analyzed from the viewpoint of the integrities of the IHTS and fuel rods. To evaluate the integrity of the IHTS based on the consequences of the SWR, the behaviors of the generated high-pressure waves are analyzed at the major positions of a failed IHTS loop using a sodium–water advanced analysis method-II code. The integrity of the fuel rods must be consistently maintained below the safety acceptance criteria to avoid the consequences of the SWR. The integrity of the PHTS is evaluated using the multidimensional analysis of reactor safety-liquid metal reactor code to model the whole plant.

Spin-wave resonances and surface spin pinning in Ga1-xMnxAs thin films

Science.gov (United States)

Bihler, C.; Schoch, W.; Limmer, W.; Goennenwein, S. T. B.; Brandt, M. S.

2009-01-01

We investigate the dependence of the spin-wave resonance (SWR) spectra of Ga0.95Mn0.05As thin films on the sample treatment. We find that for the external magnetic field perpendicular to the film plane, the SWR spectrum of the as-grown thin films and the changes upon etching and short-term hydrogenation can be quantitatively explained via a linear gradient in the uniaxial magnetic anisotropy field in growth direction. The model also qualitatively explains the SWR spectra observed for the in-plane easy-axis orientation of the external magnetic field. Furthermore, we observe a change in the effective surface spin pinning of the partially hydrogenated sample, which results from the tail in the hydrogen-diffusion profile. The latter leads to a rapidly changing hole concentration/magnetic anisotropy profile acting as a barrier for the spin-wave excitations. Therefore, short-term hydrogenation constitutes a simple method to efficiently manipulate the surface spin pinning.

Dentate network activity is necessary for spatial working memory by supporting CA3 sharp-wave ripple generation and prospective firing of CA3 neurons.

Science.gov (United States)

Sasaki, Takuya; Piatti, Verónica C; Hwaun, Ernie; Ahmadi, Siavash; Lisman, John E; Leutgeb, Stefan; Leutgeb, Jill K

2018-02-01

Complex spatial working memory tasks have been shown to require both hippocampal sharp-wave ripple (SWR) activity and dentate gyrus (DG) neuronal activity. We therefore asked whether DG inputs to CA3 contribute to spatial working memory by promoting SWR generation. Recordings from DG and CA3 while rats performed a dentate-dependent working memory task on an eight-arm radial maze revealed that the activity of dentate neurons and the incidence rate of SWRs both increased during reward consumption. We then found reduced reward-related CA3 SWR generation without direct input from dentate granule neurons. Furthermore, CA3 cells with place fields in not-yet-visited arms preferentially fired during SWRs at reward locations, and these prospective CA3 firing patterns were more pronounced for correct trials and were dentate-dependent. These results indicate that coordination of CA3 neuronal activity patterns by DG is necessary for the generation of neuronal firing patterns that support goal-directed behavior and memory.

Chemisorption of Na on the Ti Nanoparticle surface and its effects on the Na-H{sub 2}O reaction reactivity

Energy Technology Data Exchange (ETDEWEB)

Kim, Soo Jae; Park, Gunyeop; Baek, Jehyun; Park, Hyun Sun [POSTECH, Pohang (Korea, Republic of); Kim, Moo Hwan [Korea institute of Nuclear Safety, Daejeon (Korea, Republic of)

2015-10-15

This accident showed that elimination of SWR risk should be one of the most significant design criteria for the development of safe SFRs. Design solutions to ensure isolation of the Na from the water have been proposed; these include double-walled structures in the steam generator and at coolant boundaries and guard vessels or guard piping lines filled with inert gas. However, those methods cannot be ultimate solutions because the system still has a possibility of failure. An alternative approach to reduce the severity of the SWR is to reduce the reactivity of Na. Recently, this goal has been achieved by suspending a small amount of Ti nanoparticles (NPs) in liquid Na. Adding 2 at% of 10-nm Ti NPs in liquid Na reduced the heat of the reaction up to 80% and H{sub 2} production rate by 10%. The number of adsorbed Na atoms onto Ti NPs with respect to the various temperature and pressure was calculated by using ab-initio and thermodynamics. Furthermore, the model which relates the Na chemisorption and SWR reactivity was proposed. The repression of SWR by Ti NPs was expected to be caused by strong chemical interaction between Ti NP surface and Na atoms; ab initio calculation using density functional theory and atomistic thermodynamic approach were conducted to test this hypothesis. Adsorption of 0.25ML Na at hcp hollow sites was the most favorable adsorption surface state and strong chemical adsorption was confirmed by the adsorption energy of -1.65 eV. A covalent-like metallic bond was confirmed between adsorbed Na and Ti atoms on the Ti(0001) surface; this bond affects the hydration energy of Na atoms and the activation barrier of the SWR. Using adsorption energy from the ab-initio calculation and atomistic thermodynamics, the thermodynamically most stable adsorption state at (T,P) was determined Na chemisorption effect on the SWR reactivity regression rate is modeled. The model predict χ variation with respect to time well especially dramatic reduction of χ; the �

Sharp wave/ripple network oscillations and learning-associated hippocampal maps.

Science.gov (United States)

Csicsvari, Jozsef; Dupret, David

2014-02-05

Sharp wave/ripple (SWR, 150-250 Hz) hippocampal events have long been postulated to be involved in memory consolidation. However, more recent work has investigated SWRs that occur during active waking behaviour: findings that suggest that SWRs may also play a role in cell assembly strengthening or spatial working memory. Do such theories of SWR function apply to animal learning? This review discusses how general theories linking SWRs to memory-related function may explain circuit mechanisms related to rodent spatial learning and to the associated stabilization of new cognitive maps.

Fast Reactor Knowledge Organization System (FR-KOS)

International Nuclear Information System (INIS)

Costantini, Livio

2013-01-01

FR-KOS Web-portal general concepts: FR-KOS web-portal is an integrated and unique solution for knowledge preservation, retrieval and management in fast reactor (FR) knowledge domain; The exploitation of the FR-KOS provides an effective and flexible tool to access FR knowledge repositories. The dynamic and interactive process of searching information is guided by structures that are based on the FR Taxonomy; FR-KOS can be extended to other types of reactor and technologies, such as PWR, WWER, BWR, CANDU, etc. In addition can also be utilized in other information management process such as the preservation of nuclear accidents knowledg;. FR-KOS addresses needs in non-structured knowledge preservation for both embarking countries and countries with established nuclear power; FR-KOS repositories contain more that 50.000 samples of technical and scientific publications, including full text documents in different languages (English, German, French and eventually in Russian)

75 FR 5320 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2010-02-02

..., identified by FR 4004, FR MSD-4, FR MSD-5, FR G-FIN, or FR G-FINW, by any of the following methods: Agency... form number: FR MSD-4 and FR MSD-5. OMB control number: 7100-0100 and 7100-0101. Frequency: On occasion... dealers. Estimated annual reporting hours: FR MSD-4, 48 hours; and FR MSD-5, 36 hours. Estimated average...

Comparative design study of FR plants with various coolants. 1. Studies on Na coolant FR, Pb-Bi coolant FR, gas coolant FR

International Nuclear Information System (INIS)

Konomura, Mamoru; Shimakawa, Yoshio; Hori, Toru; Kawasaki, Nobuchika; Enuma, Yasuhiro; Kida, Masanori; Kasai, Shigeo; Ichimiya, Masakazu

2001-01-01

In Phase I of the Feasibility Studies on the Commercialized Fast Reactor (FR) Cycle System, plant designs on FR were performed with various coolants. This report describes the plant designs on FR with sodium, lead-bismuth, CO 2 gas and He gas coolants. A construction cost of 0.2 million yen/kWe was set up as a design goal. The result is as follows: The sodium reactor has a capability to obtain the goal, and lead-bismuth and gas reactors may satisfy the goal with further improvements. (author)

The Schizosaccharomyces pombe JmjC-protein, Msc1, prevents H2A.Z localization in centromeric and subtelomeric chromatin domains.

Directory of Open Access Journals (Sweden)

Luke Buchanan

2009-11-01

Full Text Available Eukaryotic genomes are repetitively packaged into chromatin by nucleosomes, however they are regulated by the differences between nucleosomes, which establish various chromatin states. Local chromatin cues direct the inheritance and propagation of chromatin status via self-reinforcing epigenetic mechanisms. Replication-independent histone exchange could potentially perturb chromatin status if histone exchange chaperones, such as Swr1C, loaded histone variants into wrong sites. Here we show that in Schizosaccharomyces pombe, like Saccharomyces cerevisiae, Swr1C is required for loading H2A.Z into specific sites, including the promoters of lowly expressed genes. However S. pombe Swr1C has an extra subunit, Msc1, which is a JumonjiC-domain protein of the Lid/Jarid1 family. Deletion of Msc1 did not disrupt the S. pombe Swr1C or its ability to bind and load H2A.Z into euchromatin, however H2A.Z was ectopically found in the inner centromere and in subtelomeric chromatin. Normally this subtelomeric region not only lacks H2A.Z but also shows uniformly lower levels of H3K4me2, H4K5, and K12 acetylation than euchromatin and disproportionately contains the most lowly expressed genes during vegetative growth, including many meiotic-specific genes. Genes within and adjacent to subtelomeric chromatin become overexpressed in the absence of either Msc1, Swr1, or paradoxically H2A.Z itself. We also show that H2A.Z is N-terminally acetylated before, and lysine acetylated after, loading into chromatin and that it physically associates with the Nap1 histone chaperone. However, we find a negative correlation between the genomic distributions of H2A.Z and Nap1/Hrp1/Hrp3, suggesting that the Nap1 chaperones remove H2A.Z from chromatin. These data describe H2A.Z action in S. pombe and identify a new mode of chromatin surveillance and maintenance based on negative regulation of histone variant misincorporation.

Experimental study of the role of nanoparticles in sodium–water reaction

International Nuclear Information System (INIS)

Park, Gunyeop; Kim, Soo Jae; Kim, Moo Hwan; Park, Hyun Sun

2014-01-01

Highlights: • We experimentally research the effect of nanoparticles in sodium–water reaction. • We present sodium–water reaction experiments and observed the mitigated reaction rate of sodium nanofluid. • We indicate nanoparticles settled on the surface of liquid sodium affect to mitigate chemical reactivity of sodium during sodium–water reaction. - Abstract: This paper presents an experimental study of the effect of Titanium (Ti) nanoparticles (NPs) on the mechanism of Sodium–Water chemical Reaction (SWR). Sodium–Titanium Nano Fluid (NaTiNF), i.e., liquid sodium that includes dispersed Ti NPs (≤100 nm) at 0.214 vol.% was produced. To simulate an accident in a sodium–water heat exchanger in a Sodium-cooled Fast Reactor, SWR was conducted by injecting liquid water directly onto the surface of liquid sodium. The reaction behavior of NaTiNF was quantitatively compared with that of bare sodium. Experiment results present that NaTiNF shows mitigated reactivity with water and lower reaction rate than bare sodium. These results imply that NPs dispersed in liquid sodium affect the mechanism of SWR

Interparticle potential of 10 nanometer titanium nanoparticles in liquid sodium: Theoretical approach

Energy Technology Data Exchange (ETDEWEB)

Kim, Soo Jae; Park, Gun Yeop; Park, Hyun Sun; Baek, Je Hyun [POSTECH, Pohang (Korea, Republic of); Kim, Moo Hwan [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

2015-10-15

A suspension of titanium nanoparticles (Ti NPs) in liquid sodium (Na) has been proposed as a method to mitigate the violent sodium-water reaction (SWR). The interparticle potential between Ti NPs in liquid Na may play a significant role in the agglomeration of NPs on the reaction surface and in the bulk liquid Na, since the potential contributes to a reduction in the long-term dispersion stability. For the effective control of the SWR with NPs, a physical understanding of the molecular dynamics of NPs in liquid Na is key. Therefore in this study, the nonretarded Van der Waals model and the solvation potential model are employed to analyze the interparticle potential. The ab initio calculation reveals that a strong repulsive force driven by the solvation potential exceeds the interparticle attraction and predicts the agglomeration energy required for two 10-nm Ti NPs to be 4 x 10{sup -17} J. The collision theory suggests that Ti NPs can be effective suppressors of the SWR due to the high energy barrier that prevents significant agglomeration of Ti NPs in quiescent liquid Na.

Spatial probability of soil water repellency in an abandoned agricultural field in Lithuania

Science.gov (United States)

Pereira, Paulo; Misiūnė, Ieva

2015-04-01

Water repellency is a natural soil property with implications on infiltration, erosion and plant growth. It depends on soil texture, type and amount of organic matter, fungi, microorganisms, and vegetation cover (Doerr et al., 2000). Human activities as agriculture can have implications on soil water repellency (SWR) due tillage and addition of organic compounds and fertilizers (Blanco-Canqui and Lal, 2009; Gonzalez-Penaloza et al., 2012). It is also assumed that SWR has a high small-scale variability (Doerr et al., 2000). The aim of this work is to study the spatial probability of SWR in an abandoned field testing several geostatistical methods, Organic Kriging (OK), Simple Kriging (SK), Indicator Kriging (IK), Probability Kriging (PK) and Disjunctive Kriging (DK). The study area it is located near Vilnius urban area at (54 49' N, 25 22', 104 masl) in Lithuania (Pereira and Oliva, 2013). It was designed a experimental plot with 21 m2 (07x03 m). Inside this area it was measured SWR was measured every 50 cm using the water drop penetration time (WDPT) (Wessel, 1998). A total of 105 points were measured. The probability of SWR was classified in 0 (No probability) to 1 (High probability). The methods accuracy was assessed with the cross validation method. The best interpolation method was the one with the lowest Root Mean Square Error (RMSE). The results showed that the most accurate probability method was SK (RMSE=0.436), followed by DK (RMSE=0.437), IK (RMSE=0.448), PK (RMSE=0.452) and OK (RMSE=0.537). Significant differences were identified among probability tests (Kruskal-Wallis test =199.7597 ptested technique. Simple Kriging, DK, IK and PK methods identified the high SWR probabilities in the northeast and central part of the plot, while OK observed mainly in the south-western part of the plot. In conclusion, before predict the spatial probability of SWR it is important to test several methods in order to identify the most accurate. Acknowledgments COST action ES

Histone variant H2A.Z antagonizes the positive effect of the transcriptional activator CPC1 to regulate catalase-3 expression under normal and oxidative stress conditions.

Science.gov (United States)

Dong, Qing; Wang, Yajun; Qi, Shaohua; Gai, Kexin; He, Qun; Wang, Ying

2018-05-05

In eukaryotes, deposition of the histone variant H2A.Z into nucleosomes through the chromatin remodeling complex, SWR1, is a crucial step in modulating gene transcription. Recently, H2A.Z has been shown to control the expression of responsive genes, but the underlying mechanism of how H2A.Z responds to physiological stimuli is not well understood. Here, we reveal that, in Neurospora crassa, H2A.Z is a negative regulator of catalase-3 gene, which is responsible for resistance to oxidative stress. H2A.Z represses cat-3 gene expression through direct incorporation at cat-3 locus in a SWR1 complex dependent pathway. Notably, loss of H2A.Z or SWR1 subunits leads to increased binding of a transcription factor, CPC1, at cat-3 locus. Additionally, introduction of plasmids containing gene encoding H2A.Z or SWR1 complex subunits into wild-type strains decreased CAT-3 expression, indicating that H2A.Z counteracts the positive effect of CPC1 to achieve low level cat-3 expression under non-inductive condition. Furthermore, upon oxidative stress, H2A.Z is rapidly evicted from cat-3 locus for the recruitment of CPC1, resulting in robust and full cat-3 gene expression in response to external stimuli. Collectively, this study strongly demonstrates that H2A.Z antagonizes the function of transcription factor to regulate responsive gene transcription under normal conditions and to poise for gene full activation under oxidative stress. Copyright © 2018. Published by Elsevier Inc.

Can captive populations function as sources of genetic variation for reintroductions into the wild? A case study of the Arabian oryx from the Phoenix Zoo and the Shaumari Wildlife Reserve, Jordan

Science.gov (United States)

Ochoa, Alexander; Wells, Stuart A.; West, Gary; Al-Smadi, Ma’en; Redondo, Sergio A.; Sexton, Sydnee R.; Culver, Melanie

2016-01-01

The Arabian oryx (Oryx leucoryx) historically ranged across the Arabian Peninsula and neighboring countries until its extirpation in 1972. In 1963–1964 a captive breeding program for this species was started at the Phoenix Zoo (PHX); it ultimately consisted of 11 animals that became known as the ‘World Herd’. In 1978–1979 a wild population was established at the Shaumari Wildlife Reserve (SWR), Jordan, with eight descendants from the World Herd and three individuals from Qatar. We described the mtDNA and nuclear genetic diversity and structure of PHX and SWR. We also determined the long-term demographic and genetic viability of these populations under different reciprocal translocation scenarios. PHX displayed a greater number of mtDNA haplotypes (n = 4) than SWR (n = 2). Additionally, PHX and SWR presented nuclear genetic diversities of N¯AN¯A = 2.88 vs. 2.75, H¯OH¯O = 0.469 vs. 0.387, and H¯EH¯E = 0.501 vs. 0.421, respectively. Although these populations showed no signs of inbreeding (F¯ISF¯IS ≈ 0), they were highly differentiated (G′′STGST′′ = 0.580; P extinction in PHX during 25 generations. Under such scenarios, maximum genetic diversities were achieved in the first generations before the effects of genetic drift became predominant. Although captive populations can function as sources of genetic variation for reintroduction programs, we recommend promoting mutual and continuous gene flow with wild populations to ensure the long-term survival of this species.

Analysis of Technical Feasibility of Traveling Wave Reactor

International Nuclear Information System (INIS)

Kim, Sang Ji; Yoo, Jae Woon; Bae, In Ho

2011-01-01

The status and trend of TWR, patent status and its major technical characteristics were examined in this study. Main technical features of traveling wave reactor can be characterized as a reactor operation without refueling up to the reactor life more than 60 years and TWR utilizes depleted uranium which would be produced from the enrichment process as a byproduct. Enriched fuel is only loaded to an igniter which is required for initiation of burning wave. In this study, quantitative analysis of TWR arising from the technical features was carried out in terms of resource utilization, safety and integrity, and proliferation resistance. In parallel with the concept review of TerraPower SWR design concepts, independent analysis of SWR design by altering a design specification and operation strategy was done in this study. The fuel rod design of SWR was also investigated based on the current database of fuel irradiation and performance. The technical issues of TWR or SWR which should be prior to detailed research and development can be summarized as follows: ·Strong physical protection is required during the shuffling or in-service inspection period to improve the proliferation resistance. ·New flow control logic or device is required for distributing the assembly-wise flow to be corresponded with power swing of fuel assembly. ·High integrity cladding material need to be developed for covering the high fast neutron fluence more than three times of current limit which result from the high burnup and long fuel cycle. The metal fuel under the high burnup condition should be validated through the irradiation test

Safety audits/Verkehrssicherheitsaudits : ein vielsprechendes Instrument zur Förderung der Verkehrssicherheit ?

NARCIS (Netherlands)

Wegman, F.C.M. & Schagen, I.N.L.G. van

1998-01-01

Das Instrument `Verkehrssicherheitsaudit' (`Audits') hat zum Zweck die infrastrukturellen Bedingungen für Verkehrssicherheit bereits während der Entwurf- und Realisierungsphase der Verkehrsinfrastruktur einzubauen. Dieser Bericht gibt ein Übersicht der Tragweite des Audits. Ausserdem werden

2010 Precision Strike Annual Review Held in Springfield, Virginia on April 20-21, 2010

Science.gov (United States)

2010-04-21

Zakheim • Staff • Ms Kelly Frere • Mr Brian C Keller • Dr Toni Marechaux 8 Defense Science Board Addressing Urgent Needs Today Once an urgent need is...Eustis (Vigilante) Pinon (R) Ft Worth (R) Okeechobee (R ) Ft Ord (RMAX) Moffett (RMAX) Ft Irwin Santa Fe (R) A.P.Hill (RMAX,W,R) Robbins AFB (P) Ft Carson...A.P.Hill (RMAX,W,R) Robbins AFB (P) Ft Carson (S,W,R) Ft Riley (S,E) Dugway (H,S) Ft Lewis (S,W,R) 29 Palms (S,R) Trent Lott (Fire Scout) B-BAMS E

N-acyl-L-homoserine lactone-mediated regulation of the Lip secretion system in Serratia liquefaciens MG1

DEFF Research Database (Denmark)

Riedel, K.; Ohnesorg, T.; Krogfelt, K.A.

2001-01-01

The analysis of Serratia liquefaciens MG1 'luxAB insertion mutants that are responsive to N-butanoyl-L-homoserine lactone revealed that expression of lipB is controlled by the swr quorum-sensing system. LipB is part of the Lip exporter, a type I secretion system, which is responsible for the secr......The analysis of Serratia liquefaciens MG1 'luxAB insertion mutants that are responsive to N-butanoyl-L-homoserine lactone revealed that expression of lipB is controlled by the swr quorum-sensing system. LipB is part of the Lip exporter, a type I secretion system, which is responsible...

RECHTE VON PERSONEN MIT SEELISCHEN STÖRUNGEN IN PSYCHIATRISCHEN ANSTALTEN DER REPUBLIK KROATIEN - EINE EMPIRISCHE ANALYSE

Directory of Open Access Journals (Sweden)

Dalida Rittossa

2017-01-01

Full Text Available Nachdem man im Bereich psychischer Gesundheit zu zahlreichen wissenschaftlichen Erkenntnissen gekommen ist, ist es heutzutage völlig klar, dass die Achtung der Rechte psychiatrischer Patienten und die Bedingungen derer Unterbringung in psychiatrischen Anstalten einerseits und der Erfolg in der Behandlung, Deinstitutionalisierung und Destigmatisierung von Patienten andererseits direkt miteinander verbunden sind. In den letzten Jahren aber weisen die Berichte der Bürgerbeauftragten und der Beauftragten für Behinderte sowie auch zahlreiche Urteile des Europäischen Gerichtshofs für Menschenrechte hinsichtlich der Beschwerden von Personen mit seelischen Störungen auf schlechte Bedingungen der Unterbringung und Behandlung von Patienten in psychiatrischen Anstalten der Republik Kroatien hin. Deshalb stellte sich als rechtfertigend heraus, das Ausmaß der Verwirklichung der Rechte psychiatrischer Patienten sowie auch die Bedingungen derer Behandlung zu erforschen. Zu diesem Zweck wurde die Forschung in der Klinik für Psychiatrie „Vrapče“, im psychiatrischen Krankenhaus Rab, im Neuropsychiatrischem Krankenhaus „Dr. Ivan Barbot“ Popovača und im Psychiatrischen Krankenhaus Ugljan durchgeführt, den einzigen psychiatrischen Krankenhäusern in der Republik Kroatien mit Abteilungen für schuldunfähige Personen, welchen nach der Entscheidung des Strafgerichts eine Verwahrung angeordnet wurde. Dabei wurden zwei Fragebögen benutzt: der Basisfragebogen für die Leiter von psychiatrischen Anstalten und der anonyme Fragebogen für eine Patientengruppe von 80 Patienten. Ziel dieser Arbeit ist es, die durch Fragebogen aufgezeigten Ergebnisse zu analysieren.

7 CFR 29.1044 - Orange Red (FR).

Science.gov (United States)

2010-01-01

... 7 Agriculture 2 2010-01-01 2010-01-01 false Orange Red (FR). 29.1044 Section 29.1044 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Type 92) § 29.1044 Orange Red (FR). A yellowish red. [42 FR 21092, Apr. 25, 1977. Redesignated at 47 FR...

76 FR 25534 - Airworthiness Directives; Hamilton Sundstrand Propellers Model 247F Propellers

Science.gov (United States)

2011-05-05

... 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the... through FR2279 inclusive, FR 2398, FR2449 to FR2958 inclusive, FR20010710 to FR20010722 inclusive, and FR20010723RT to FR20020127RT inclusive, installed. Propeller blades reworked to Hamilton Sundstrand Service...

Future dynamics in f(R) theories

International Nuclear Information System (INIS)

Mueller, D.; Andrade, V.C. de; Maia, C.; Reboucas, M.J.; Teixeira, A.F.F.

2015-01-01

The f(R) gravity theories provide an alternative way to explain the current cosmic acceleration without invoking a dark energy matter component used in the cosmological modeling in the framework of general relativity. However, the freedom in the choice of the functional forms of f(R) gives rise to the problem of the degeneracy among these gravity theories on theoretical and (or) observational grounds. In this paper we examine the question as to whether the future dynamics can be used to break the degeneracy between f(R) gravity theories by investigating the dynamics of spatially homogeneous and isotropic dust flat models in two f(R) gravity theories, namely the well known f(R) = R+αR n gravity and another byAviles et al., whose motivation comes from the cosmographic approach to f(R) gravity. We perform a detailed numerical study of the dynamics of these theories taking into account the recent constraints on the cosmological parameters made by the Planck Collaboration. We demonstrate that besides being useful for discriminating between these two f(R) gravity theories, the future dynamics technique can also be used to determine the finite-time behavior as well as the fate of the Universe in the framework of these f(R) gravity theories. There also emerges from our analysis the result that one still can have a dust flat FLRWsolution with a big rip, if gravity is governed by f(R) = R+αR n . We also show that FLRW dust solutions with f'' < 0 do not necessarily lead to singularities. (orig.)

Biologische Angriffe auf Mauerwerke

NARCIS (Netherlands)

Schober, G.; Kort, H.S.M.; Balen, van K.; Bronswijk, van J.E.M.H.

1995-01-01

Zusammenfassung: Biologische Angriffe durch Mauerwerkbewuchs führen zu Schadensbildern, die durch Festigkeitsverlust, Formveränderungen oder Farbveränderungen auf den Oberflächen charakterisiert sind. Allerdings sind nur einige spezialisierte Pflanzen an die extremen Bedingungen dieser Lebensräume

Experimental Study of Na based Titanium Nanofluid-Water Reaction

Energy Technology Data Exchange (ETDEWEB)

Park, Gunyeop; Kim, Soo Jae; Baek, Jehyun; Kim, Hyun Soo; Oh, Sun Ryung; Park, Hyun Sun; Kim, Moo Hwan [POSTECH, Pohang (Korea, Republic of)

2015-10-15

In KALIMER-600, a sodium-cooled fast reactor designed by KAERI, thermal energy is transported from high-temperature liquid Na (526 .deg. C at 0.1 MPa) to low temperature water (230 .deg. C at - 19.5 MPa) through a heat exchanger. If any leakage or rupture occurs during the operation of this heat exchanger, highly pressurized liquid water can penetrate into the liquid Na channels; this contact should instantly cause SWR. As reaction continues, liquid water is soon vaporized by pressure drop and huge amount of reaction heat. This generated water vapor expands large reaction area and increases sodium-water vapor reaction process. Therefore, the rapid generation of reaction product (like H{sub 2}) and water vapor increases the system pressure that can cause the system failure in SFR. To reduce this strong chemical reaction phenomena between Na and water, some we have focused on suppressing the chemical reactivity of liquid Na by dispersing nanoparticles (NPs). For the real application of NaTiNF, the pressure change induced by NaTiNF-water reaction is compared with Na-water reaction in the present study. NaTiNF contains 100nm of Ti NPs at 0.2 vol. %. The reaction rate of NaTiNF-water reaction is also investigated as reaction temperature increases. Sodium-water vapor reaction (SVR) will occur when an SWR accident occurs in SFR. In this manner, NaTiNF-water vapor reaction is experimentally performed for ensuring the suppression of chemical reactivity of NaTiNF in contact with water vapor. In the basic step for reducing risk of an SWR in SFR, we have experimentally verified the suppressed chemical reactivity of liquid sodium using Ti NPs through SWR and SVR experiments. In SWR, Na based titanium nanofluid (NaTiNF) shows lower pressure change than Na. As T{sub R} increases, P{sub max} in Na-water reaction increases while NaTiNF does not. The reaction rate of NaTiNF shows twice slower than that of Na. In SVR, NaTiNF shows slower temperature increase than Na. The distinct

Soil water repellency of the artificial soil and natural soil in rocky slopes as affected by the drought stress and polyacrylamide.

Science.gov (United States)

Chen, Zhang; Wang, Ruixin; Han, Pengyuan; Sun, Hailong; Sun, Haifeng; Li, Chengjun; Yang, Lixia

2018-04-01

Soil water repellency (SWR) causes reduced soil water storage, enhanced runoff and reduced ecosystem productivity. Therefore, characterization of SWR is a prerequisite for effective environmental management. SWR has been reported under different soils, land uses and regions of the world, particularly in forest land and after wildfires; however, the understanding of this variable in the artificial soil of rocky slope eco-engineering is still rather limited. This study presented the characterization of SWR in the artificial soil affected by the polyacrylamide (PAM) and drought stress. There were two molecular weights of PAM, and the CK was without PAM application. Three types of soil were studied: natural soil and two types of artificial soil which have been sprayed for 1y and 5y, respectively. The drought stress experiments had three drought gradients, lasted for three weeks. Water repellency index (WRI) and soil-water contact angle (β) were determined using intrinsic sorptivity method by measuring the water sorptivity (S W ) and ethanol sorptivity (S E ) in all soil samples. The results showed that (1) Polyacrylamide treatments significantly increased S W by 3% to 38%, and reduced S E by 1% to 15%, WRI by 6% to 38%, β by 3% to 23% compared to the control group. Polyacrylamide treatments also increased water-stable aggregates content and total porosity by 22% to 33%, 11% to 20% relative to the control, while PAM with a higher molecular weight performed best. (2) The interaction between PAM and drought stress had a significant effect on WRI and β for all soil types (Pnatural soil. Copyright © 2017 Elsevier B.V. All rights reserved.

Safety Evaluation for IHTS Integrity due to the Steam Generator Sodium-Water Reaction Event in the PGSFR

Energy Technology Data Exchange (ETDEWEB)

Ahn, Sang-Jun; Lee, Kwi Lim; Ha, Kwi-Seok; Lee, Seung Won; Jeong, Taekyeong [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2016-10-15

In this paper, the integrity of the IHTS and SG by the SWR event are evaluated using the SWAAMII code. A sodium has a chemical characteristics to rigorously react the water or steam and produce the high pressure waves and high temperature reaction heat. It has an excellent characteristics as a reactor coolant. But, there is an event to be considered in the sodium cooled fast reactor design. The Sodium-Water Reaction (SWR) event can be occurred by the water or steam leaks due to the break of the steam generator tubes. The propagated high pressure waves threathen the structural integrity of the affected Intermediate Heat Transport System (IHTS) and steam generator. If the IHTS pipes are failed, the sodium of the IHTS can be released to the containment building. To the peak pressure point of view, it is performed to evaluate the integrity of the major components due to the SWR event in the SG. The generated peak pressures due to the five SG tubes simultaneous break event are within the range of the design pressure for the SG, IHX and IHTS including the related pipes.

Kinderperspektiven: Partizipation in gesellschaftlicher Praxis

DEFF Research Database (Denmark)

Højholt, Charlotte

2012-01-01

Der Artikel befasst sich mit der Frage, wie das alltägliche Leben von Kindern mit seinen Problemen, Situationen und Bedingungen aus der Perspektive der Kinder erforscht werden kann. Auf der Grundlage empirischen Materials wird dabei gezeigt, dass zur Untersuchung von Kinderperspektiven deren...

77 FR 7968 - Semiannual Regulatory Agenda

Science.gov (United States)

2012-02-13

... Regulation Sequence No. Title Identifier No. 392 Non-Federal Oil and Gas 1024-AD78 Rights. National Park.... Timetable: Action Date FR Cite NPRM 07/00/12 Regulatory Flexibility Analysis Required: Yes. Agency Contact... anaconda, and Beni anaconda. Timetable: Action Date FR Cite ANPRM 01/31/08 73 FR 5784 ANPRM Comment Period...

Knowledge Preservation and Data Collection on FR in China

International Nuclear Information System (INIS)

Zhang Donghui

2013-01-01

China has established the knowledge preservation and data collection system on FR preliminary and some data has been used to design new fast reactor, such as CFR600. • The best way to preserve FR knowledge is to construct a real fast reactor. All of the FR member countries should push FR commercialization forward together. • The agency could push the FR data collaboration based on some necessary roles

Considerações gerais sôbre os biótopos e habitats dos Anofelíneos do sub-gênero Kerteszia

Directory of Open Access Journals (Sweden)

Henrique P. Veloso

1958-07-01

Full Text Available Die vorliegende Arbiet koennen wir, entsprechend den obigen Erklaerungen, wie folgt, zusammenfassen: 1. Es bestehen im vertikalen Sinne besondere oekologische Bedingungen bezueglich der Eiablage fuer Anopheles (Kerteszia homunculus und bellator, waehrend A. (K. cruzii eine grosse Indifferenz bezueglich des Mikroklimas zeigt. 2. Die Anophelinen zeigen keine besondere Bevorzugung irgendeiner Bromelienart in Bezug auf die Eiablage. Es laesst sich feststellen, dass gewisse Bedingungen eines Biotops erfuelt sein muessen, damit dieses in begrenztem Wohnbezirk zu ienem ausgesprochenen Brutplatz wird. Aus diesem Grunde wurden einige Bromelienarten zu Hauptbrutstaetten der Anopheleslarven des Gebietes. 3. Bezueglich der Wassermenge finden wir in der gesamten Region die Anopheleslarven weitaus am haeufigsten in Bromelien mit grosser Kapazitaet. Die Arten mit geringem Fassungsvermoegen, die wesentlich zahlreicher als die erstgenannten sind, sind nur gute Brutstaetten, ween sie auf dem Boden wachsen oder Talsohle in huegeligem Gelaende, dort wo der Wald ausreichend dicht ist. Hier halten die mikroklimatischen Bedingungen die Verdunstung hintan, wodurch den Anopheleslarven in diesen Bromelien das Leben ermoeglicht wird. 4. Es besteht eine Beziehung zwischen der Periodizitaet der Larven und der gefluegelten Formen der Anophelinen, die in einem Waldstueck gefangen wurden. Die letzteren zeigen im vertikalen Sinne keine ausgesprochenen Variationen bezueglich der prozentualen Haeufigkeit, waehrend die Larven in ieder Hoehe ausgesprochene Haeufigkeitsschwankungen aufweisen, die immer von der von Art bevorzugten Habitat in einer bestimmten Hoehenlage abhaengen. Bezueglich einer moeglichst vollstaendigen Erklaerung des Problems "Bromelien-Malaria" dieser Region, koennen wir folgendes feststellen: 5. Die definitive Loesung des Problems wird wesentlich erleichtert durch den Nachweis, dass nur eine geringe Anzahl von Bromelien (12 Arten - und gerate die weniger

[Safety Walkround as a risk assessment tool: the first Italian experience].

Science.gov (United States)

Levati, A; Amato, S; Adrario, E; De Flaviis, C; Delia, C; Milesi, S; Petrini, F; Bevilacqua, L

2009-01-01

In 2007 the Study Group "Clinical Risk Management" of the Italian Society of Anaesthesia and Intensive Care Unit (SIAARTI) performed a multicentric study in Intensive Care Unit (ICU) to assess the feasibility and efficacy of the Safety WalkRound (SWR) as a tool for the risk assessment. As the environment and organization of ICU are more complex than anaesthesia ones, mainly due to the severity of patients, high number of involved healthcare givers and different kinds of procedures, the Study Group decided that a check list is not fit for ICU and , after a careful review of the literature, chose to test the Safety WalkRound. in four Italian General ICUs. The SWR was born in 2003 when Frankel plans a structured interview of 15 questions (about 50% open) to collect operators' opinion about rate and type of errors, near misses, communication, problems regarding the report of adverse events and suggestions to increase patient safety. Consequently SWR is a tool of risk assessment alternative to the Incident Reporting which is marked by a diffuse underreporting of operators. Although the SWR is a new tool not validated in Italian language neither published in Italy on PubMed journals , the Study Group has decided that it might be fit for the organization of Italian Healthcare System. A back translation of the validated model of Joint Commission was provided and the translated version has been lightly changed to be employed in hospitals with and without Incident Reporting . The questions have been changed or introduced on the basis of the organization vulnerabilities detected with observational techniques or Focus Group. The interview performed in Italy contains 16 questions classified into five groups: a) error, b) error prevention, c) communication, teamwork and leadership, d) error discussion and e) relationship with patients and their families. The answers collected have been analyzed to detect the vulnerabilities in the organizations and specify the improvements to

Investigations on radionuclide release and on the corrosion behaviour of spent fuels from research reactors under disposal conditions. Final report; Untersuchungen zur Radionuklidfreisetzung und zum Korrosionsverhalten von bestrahltem Kernbrennstoff aus Forschungsreaktoren unter Endlagerbeedingungen. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Bruecher, H.; Curtius, H.; Fachinger, J.; Kaiser, G.; Mazeina, L.; Nau, K.

2003-12-01

und zum Korrosionsverhalten von bestrahltem Kernbrennstoff aus Forschungsreaktoren unter Endlagerbedingungen' mit dem Foerderkennzeichen FKZ 9108, der im Zeitraum vom 01.06.98 bis 30.11.2001 durchgefuehrt wurde, sind folgende Ergebnisse zu entnehmen: U/Al-FR-Brennelemente korrodierten unter anaeroben Bedingungen bei 90 C in Granitwasser (Grimsel-West) so langsam, dass die Aufloesung des gesamten Brennelements nach bisherigen konservativen Ergebnissen im Bereich von 10{sup 3} Jahren liegen wuerde. In Salzlaugen, speziell in magnesiumchloridreichen Laugen, ist die Korrosionsrate dagegen hoch. Einen beschleunigenden Effekt hat die Zugabe von GGG40 (Werkstoff des Brennelementbehaelters, in dem Eisen der Hauptbestandteil ist). Eine vollstaendige Aufloesung des Brennelementes wird in wenigen Monaten erreicht. Unter aeroben als auch unter anaeroben Bedingungen zeigte sich, dass ein Grossteil der freigesetzten Radionuklide an und/oder in den Korrosionsprodukten (sekundaeren Phasen) gebunden werden. Eine Veraenderung der Ionenstaerke des Auslaugmediums fuehrte allerdings zur Remobilisierung der Aktiniden. Fuer diese Radionuklidfreisetzungen koennen Umwandlungsprozesse innerhalb der sekundaeren Phasen verantwortlich sein. Sekundaere Phasen, entstanden bei der Korrosion eines unbestrahlten U/Al-FR-Brennelementes wurden erstmalig analysiert und Hydrotalkite als Phasenbestandteile konnten identifiziert werden. Dieses Ergebnis berechtigt zur Annahme, dass Hydrotalkite Bestandteile der sekundaeren Phasen von bestrahlten U/Al-FR-Brennelemente sind. Zur Klaerung der Frage, welche Bindungsverhaeltnisse zwischen Radionuklid und sekundaerer Phase vorliegen, wurden Sorptionsuntersuchungen mit endlagerrelevanten Radionukliden an Mineralien (diese Mineralien koennen als thermodynamische Endstufen der Korrosionsprodukte angesehen werden) in Salzlaugen und Granitwasser durchgefuehrt. In Salzlaugen zeigte Pu quantitative Sorptionstendenzen, wobei Pu in kationischer Form kovalent bindet

75 FR 62333 - Airworthiness Directives; Hamilton Sundstrand Propellers Model 247F Propellers

Science.gov (United States)

2010-10-08

...., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the regulatory... that the 247F propeller blades, P/N 817370-1, S/Ns FR2449 to FR2958 inclusive, FR20010710 to FR20010722 inclusive, and FR20010723RT to FR20020127RT inclusive, manufactured since January 1999, might also have...

76 FR 7101 - Airworthiness Directives; Hamilton Sundstrand Propellers Model 247F Propellers

Science.gov (United States)

2011-02-09

..., except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received... blades part number (P/N) 817370-1, S/Ns FR2449 to FR2958 inclusive, FR20010710 to FR20010722 inclusive, and FR20010723RT to FR20020127RT inclusive, before December 31, 2010. We determined that those S/N...

Safety Analysis for PHTS Integrity by the failure of the IHTS function in PGSFR

Energy Technology Data Exchange (ETDEWEB)

Ahn, Sang-Jun; Chang, Won-Pyo; Ha, Kwi-Seok; Kang, Seok Hun; Choi, Chi-Woong; Lee, Kwi Lim; Lee, Seung Won; Jeong, Jae-Ho; Kim, Jin Su; Jeong, Taekyeong [KAERI, Daejeon (Korea, Republic of)

2016-05-15

In this paper, the failure of the heat removal function of the IHTS by the SWR event is assumed. The integrity of the PHTS is analyzed by MARS-LMR code. A sodium is used as a reactor coolant to transfer the core heat to the turbine. It rigorously reacts with a water or steam in chemical and generates the high pressure waves and high temperature reaction heat. While it has an excellent characteristics as a coolant, there is an event to be necessarily considered in the sodium cooled fast reactor design. The Sodium-Water Reaction(SWR) event can be occurred due to the rupture of steam generator tubes. This event threaten the integrity of the Primary Heat Transfer System(PHTS). It is categorized to the loss of heat sink events, which are undercooling the Primary Heat Transfer System(PHTS). In PGSFR, the SWR event can be occurred in the SG. The PHTS is analyzed to the respects of the integrity of the fuel and cladding using the MARS-LMR code. From the analysis results, the peak temperature of the fuel and cladding have a sufficient margin to the safety acceptance criteria 1,237 .deg. C and 1,075 .deg. C, respectively.

75 FR 19973 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2010-04-16

... Municipal Securities Dealer. Agency form number: FR MSD-4 and FR MSD-5. OMB control number: 7100-0100 and... activities as municipal securities dealers. Estimated annual reporting hours: FR MSD-4, 48 hours; and FR MSD-5, 36 hours. Estimated average hours per response: FR MSD-4, 1 hour; and FR MSD- 5, 0.25 hours...

76 FR 54717 - Supervised Securities Holding Companies Registration

Science.gov (United States)

2011-09-02

... other financial statements submitted to the securities holding company's current consolidated supervisor... Y-9ES), The Supplement to the Consolidated Financial Statements for Bank Holding Companies (FR Y-9CS... Companies (FR Y-6), The Report of Foreign Banking Organizations (FR Y-7), The Consolidated Financial...

7 CFR 29.3068 - Tannish-red color (FR).

Science.gov (United States)

2010-01-01

... 7 Agriculture 2 2010-01-01 2010-01-01 false Tannish-red color (FR). 29.3068 Section 29.3068 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards... Type 93) § 29.3068 Tannish-red color (FR). A light red shaded toward tan. [24 FR 8771, Oct. 29, 1959...

f(R) gravity solutions for evolving wormholes

Energy Technology Data Exchange (ETDEWEB)

Bhattacharya, Subhra [Presidency University, Department of Mathematics, Kolkata (India); Chakraborty, Subenoy [Jadavpur University, Department of Mathematics, Kolkata (India)

2017-08-15

The scalar-tensor f(R) theory of gravity is considered in the framework of a simple inhomogeneous space-time model. In this research we use the reconstruction technique to look for possible evolving wormhole solutions within viable f(R) gravity formalism. These f(R) models are then constrained so that they are consistent with existing experimental data. Energy conditions related to the matter threading the wormhole are analyzed graphically and are in general found to obey the null energy conditions (NEC) in regions around the throat, while in the limit f(R) = R, NEC can be violated at large in regions around the throat. (orig.)

Exploring plane-symmetric solutions in f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Shamir, M. F., E-mail: farasat.shamir@nu.edu.pk [National University of Computer and Emerging Sciences, Department of Sciences and Humanities (Pakistan)

2016-02-15

The modified theories of gravity, especially the f(R) gravity, have attracted much attention in the last decade. This paper is devoted to exploring plane-symmetric solutions in the context of metric f(R) gravity. We extend the work on static plane-symmetric vacuum solutions in f(R) gravity already available in the literature [1, 2]. The modified field equations are solved using the assumptions of both constant and nonconstant scalar curvature. Some well-known solutions are recovered with power-law and logarithmic forms of f(R) models.

78 FR 37565 - Endangered Species; Issuance of Permits

Science.gov (United States)

2013-06-21

... Living Treasures Wild 77 FR 68809; November January 22, 2013. Animal Park. 16, 2012. 88777A Wild Wonders... 70457; November January 11, 2013. 26, 2012. 713600 Kingdom Of The Mammals. 77 FR 70457; November January... International Center 78 FR 12777; February April 11, 2013. For The Preservation 25, 2013. Of Wild Animals...

Real time algorithms for sharp wave ripple detection.

Science.gov (United States)

Sethi, Ankit; Kemere, Caleb

2014-01-01

Neural activity during sharp wave ripples (SWR), short bursts of co-ordinated oscillatory activity in the CA1 region of the rodent hippocampus, is implicated in a variety of memory functions from consolidation to recall. Detection of these events in an algorithmic framework, has thus far relied on simple thresholding techniques with heuristically derived parameters. This study is an investigation into testing and improving the current methods for detection of SWR events in neural recordings. We propose and profile methods to reduce latency in ripple detection. Proposed algorithms are tested on simulated ripple data. The findings show that simple realtime algorithms can improve upon existing power thresholding methods and can detect ripple activity with latencies in the range of 10-20 ms.

75 FR 10692 - Maritime Communications

Science.gov (United States)

2010-03-09

...] Maritime Communications ACTION: Final rule; correction. SUMMARY: The Federal Communications Commission published in the Federal Register of February 2, 2010 (75 FR 5241), a document in the Maritime Radio..., 2010 (75 FR 5241) to ensure that its rules governing the Maritime Radio Services continue to promote...

Geodesic congruences in the Palatini f(R) theory

International Nuclear Information System (INIS)

Shojai, Fatimah; Shojai, Ali

2008-01-01

We shall investigate the properties of a congruence of geodesics in the framework of Palatini f(R) theories. We shall evaluate the modified geodesic deviation equation and the Raychaudhuri's equation and show that f(R) Palatini theories do not necessarily lead to attractive forces. Also, we shall study energy condition for f(R) Palatini gravity via a perturbative analysis of the Raychaudhuri's equation.

Inverse estimation of soil hydraulic properties and water repellency following artificially induced drought stress

Directory of Open Access Journals (Sweden)

Filipović Vilim

2018-06-01

Full Text Available Global climate change is projected to continue and result in prolonged and more intense droughts, which can increase soil water repellency (SWR. To be able to estimate the consequences of SWR on vadose zone hydrology, it is important to determine soil hydraulic properties (SHP. Sequential modeling using HYDRUS (2D/3D was performed on an experimental field site with artificially imposed drought scenarios (moderately M and severely S stressed and a control plot. First, inverse modeling was performed for SHP estimation based on water and ethanol infiltration experimental data, followed by model validation on one selected irrigation event. Finally, hillslope modeling was performed to assess water balance for 2014. Results suggest that prolonged dry periods can increase soil water repellency. Inverse modeling was successfully performed for infiltrating liquids, water and ethanol, with R2 and model efficiency (E values both > 0.9. SHP derived from the ethanol measurements showed large differences in van Genuchten-Mualem (VGM parameters for the M and S plots compared to water infiltration experiments. SWR resulted in large saturated hydraulic conductivity (Ks decrease on the M and S scenarios. After validation of SHP on water content measurements during a selected irrigation event, one year simulations (2014 showed that water repellency increases surface runoff in non-structured soils at hillslopes.

ERECTA signaling controls Arabidopsis inflorescence architecture through chromatin-mediated activation of PRE1 expression.

Science.gov (United States)

Cai, Hanyang; Zhao, Lihua; Wang, Lulu; Zhang, Man; Su, Zhenxia; Cheng, Yan; Zhao, Heming; Qin, Yuan

2017-06-01

Flowering plants display a remarkable diversity in inflorescence architecture, and pedicel length is one of the key contributors to this diversity. In Arabidopsis thaliana, the receptor-like kinase ERECTA (ER) mediated signaling pathway plays important roles in regulating inflorescence architecture by promoting cell proliferation. However, the regulating mechanism remains elusive in the pedicel. Genetic interactions between ERECTA signaling and the chromatin remodeling complex SWR1 in the control of inflorescence architecture were studied. Comparative transcriptome analysis was applied to identify downstream components. Chromatin immunoprecipitation and nucleosome occupancy was further investigated. The results indicated that the chromatin remodeler SWR1 coordinates with ERECTA signaling in regulating inflorescence architecture by activating the expression of PRE1 family genes and promoting pedicel elongation. It was found that SWR1 is required for the incorporation of the H2A.Z histone variant into nucleosomes of the whole PRE1 gene family and the ERECTA controlled expression of PRE1 gene family through regulating nucleosome dynamics. We propose that utilization of a chromatin remodeling complex to regulate gene expression is a common theme in developmental control across kingdoms. These findings shed light on the mechanisms through which chromatin remodelers orchestrate complex transcriptional regulation of gene expression in coordination with a developmental cue. © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.

Nonlinear evolution of f(R) cosmologies. I. Methodology

International Nuclear Information System (INIS)

Oyaizu, Hiroaki

2008-01-01

We introduce the method and the implementation of a cosmological simulation of a class of metric-variation f(R) models that accelerate the cosmological expansion without a cosmological constant and evade solar-system bounds of small-field deviations to general relativity. Such simulations are shown to reduce to solving a nonlinear Poisson equation for the scalar degree of freedom introduced by the f(R) modifications. We detail the method to efficiently solve the nonlinear Poisson equation by using a Newton-Gauss-Seidel relaxation scheme coupled with the multigrid method to accelerate the convergence. The simulations are shown to satisfy tests comparing the simulated outcome to analytical solutions for simple situations, and the dynamics of the simulations are tested with orbital and Zeldovich collapse tests. Finally, we present several static and dynamical simulations using realistic cosmological parameters to highlight the differences between standard physics and f(R) physics. In general, we find that the f(R) modifications result in stronger gravitational attraction that enhances the dark matter power spectrum by ∼20% for large but observationally allowed f(R) modifications. A more detailed study of the nonlinear f(R) effects on the power spectrum are presented in a companion paper.

50 CFR 660.707 - Permits.

Science.gov (United States)

2010-10-01

... or downloaded from the Southwest Region home page (http://swr.nmfs.noaa.gov/permits.htm) to apply for... the vessel is fishing for, taking, retaining, possessing, or landing HMS shoreward of the outer...

THE LIFETIME AND POWERS OF FR IIs IN GALAXY CLUSTERS

International Nuclear Information System (INIS)

Antognini, Joe; Bird, Jonathan; Martini, Paul

2012-01-01

We have identified and studied a sample of 151 FR IIs found in brightest cluster galaxies (BCGs) in the MaxBCG cluster catalog with data from FIRST and NVSS. We have compared the radio luminosities and projected lengths of these FR IIs to the projected length distribution of a range of mock catalogs generated by an FR II model and estimate the FR II lifetime to be 1.9 × 10 8 yr. The uncertainty in the lifetime calculation is a factor of two, primarily due to uncertainties in the intracluster medium (ICM) density and the FR II axial ratio. We furthermore measure the jet power distribution of FR IIs in BCGs and find that it is well described by a log-normal distribution with a median power of 1.1 × 10 37 W and a coefficient of variation of 2.2. These jet powers are nearly linearly related to the observed luminosities, and this relation is steeper than many other estimates, although it is dependent on the jet model. We investigate correlations between FR II and cluster properties and find that galaxy luminosity is correlated with jet power. This implies that jet power is also correlated with black hole mass, as the stellar luminosity of a BCG should be a good proxy for its spheroid mass and therefore the black hole mass. Jet power, however, is not correlated with cluster richness, nor is FR II lifetime strongly correlated with any cluster properties. We calculate the enthalpy of the lobes to examine the impact of the FR IIs on the ICM and find that heating due to adiabatic expansion is too small to offset radiative cooling by a factor of at least six. In contrast, the jet power is approximately an order of magnitude larger than required to counteract cooling. We conclude that if feedback from FR IIs offsets cooling of the ICM, then heating must be primarily due to another mechanism associated with FR II expansion.

THE LIFETIME AND POWERS OF FR IIs IN GALAXY CLUSTERS

Energy Technology Data Exchange (ETDEWEB)

Antognini, Joe; Bird, Jonathan; Martini, Paul, E-mail: antognini@astronomy.ohio-state.edu, E-mail: bird@astronomy.ohio-state.edu, E-mail: martini@astronomy.ohio-state.edu [Department of Astronomy, Ohio State University, 140 W 18th Avenue, Columbus, OH 43210 (United States)

2012-09-10

We have identified and studied a sample of 151 FR IIs found in brightest cluster galaxies (BCGs) in the MaxBCG cluster catalog with data from FIRST and NVSS. We have compared the radio luminosities and projected lengths of these FR IIs to the projected length distribution of a range of mock catalogs generated by an FR II model and estimate the FR II lifetime to be 1.9 Multiplication-Sign 10{sup 8} yr. The uncertainty in the lifetime calculation is a factor of two, primarily due to uncertainties in the intracluster medium (ICM) density and the FR II axial ratio. We furthermore measure the jet power distribution of FR IIs in BCGs and find that it is well described by a log-normal distribution with a median power of 1.1 Multiplication-Sign 10{sup 37} W and a coefficient of variation of 2.2. These jet powers are nearly linearly related to the observed luminosities, and this relation is steeper than many other estimates, although it is dependent on the jet model. We investigate correlations between FR II and cluster properties and find that galaxy luminosity is correlated with jet power. This implies that jet power is also correlated with black hole mass, as the stellar luminosity of a BCG should be a good proxy for its spheroid mass and therefore the black hole mass. Jet power, however, is not correlated with cluster richness, nor is FR II lifetime strongly correlated with any cluster properties. We calculate the enthalpy of the lobes to examine the impact of the FR IIs on the ICM and find that heating due to adiabatic expansion is too small to offset radiative cooling by a factor of at least six. In contrast, the jet power is approximately an order of magnitude larger than required to counteract cooling. We conclude that if feedback from FR IIs offsets cooling of the ICM, then heating must be primarily due to another mechanism associated with FR II expansion.

76 FR 40052 - Regulatory Agenda

Science.gov (United States)

2011-07-07

... for Infusion Pumps. 165 Food Labeling: Nutrition 0910-AG56 Labeling for Food Sold in Vending Machines. 166 Food Labeling: Nutrition 0910-AG57 Labeling of Standard Menu Items in Restaurants and Similar... American Recovery and Reinvestment Act of 2009). Timetable: Action Date FR Cite NPRM 07/14/10 75 FR 40867...

75 FR 14131 - Broadband Technology Opportunities Program

Science.gov (United States)

2010-03-24

... electronically through an online application system at http://www.broadbandusa.gov . (75 FR at 3805). NTIA... March 26, 2010. (75 FR 10464, Mar. 8, 2010). NTIA announces this extension in the Application Closing...

Mutation of Rubie, a novel long non-coding RNA located upstream of Bmp4, causes vestibular malformation in mice.

Directory of Open Access Journals (Sweden)

Kristina A Roberts

Full Text Available The vestibular apparatus of the vertebrate inner ear uses three fluid-filled semicircular canals to sense angular acceleration of the head. Malformation of these canals disrupts the sense of balance and frequently causes circling behavior in mice. The Epistatic circler (Ecl is a complex mutant derived from wildtype SWR/J and C57L/J mice. Ecl circling has been shown to result from the epistatic interaction of an SWR-derived locus on chromosome 14 and a C57L-derived locus on chromosome 4, but the causative genes have not been previously identified.We developed a mouse chromosome substitution strain (CSS-14 that carries an SWR/J chromosome 14 on a C57BL/10J genetic background and, like Ecl, exhibits circling behavior due to lateral semicircular canal malformation. We utilized CSS-14 to identify the chromosome 14 Ecl gene by positional cloning. Our candidate interval is located upstream of bone morphogenetic protein 4 (Bmp4 and contains an inner ear-specific, long non-coding RNA that we have designated Rubie (RNA upstream of Bmp4 expressed in inner ear. Rubie is spliced and polyadenylated, and is expressed in developing semicircular canals. However, we discovered that the SWR/J allele of Rubie is disrupted by an intronic endogenous retrovirus that causes aberrant splicing and premature polyadenylation of the transcript. Rubie lies in the conserved gene desert upstream of Bmp4, within a region previously shown to be important for inner ear expression of Bmp4. We found that the expression patterns of Bmp4 and Rubie are nearly identical in developing inner ears.Based on these results and previous studies showing that Bmp4 is essential for proper vestibular development, we propose that Rubie is the gene mutated in Ecl mice, that it is involved in regulating inner ear expression of Bmp4, and that aberrant Bmp4 expression contributes to the Ecl phenotype.

Experimental and theoretical investigations of the decays of 206Fr and 208Fr

International Nuclear Information System (INIS)

Ritchie, B.G.

1979-01-01

206 Fr and 208 Fr were mass separated and observed with large-volume semiconductor detectors in calibrated geometries. Alpha, gamma, and electron singles and gamma-gamma and gamma-electron coincidence data were taken. The alpha decay experiments permitted the determination of the alpha branching ratios for 206 208 Fr as well as 205 207 Fr. The method used includes the information obtained from the electron capture decay studies of those nuclei. The alpha branching ratios obtained are generally higher than those reported previously. Energies and half-lives are in general agreement with previous measurements. The alpha measurements also revealed the presence of a heretofore unobserved alpha-emitting isomer in 206 Fr. The isomer has a half-life of 0.7 +- 0.1 seconds, and the energy of the associated alpha decay is 6.930 +- 0.005 MeV. Gamma data taken with the alpha measurements suggest that the isomeric level is 531 keV above the 206 Fr ground state, with the associated alpha decay populating a level at 391 keV in the 202 At nucleus. Measured alpha branching ratios were analyzed with the Rasmussen reduced width formalism. All observed francium decays were deduced to be unhindered. This study produced detailed level schemes for 206 Rn and 208 Rn. The gamma and electron data permitted the determination of internal conversion coefficients, multipolarities, spins, and parities. It appears from systematics that two different bands of states above J/sup π/ = 4+ are populated by in-beam studies. The deduced level scheme of 208 Rn was studied in the interacting boson approximation (IBA) with the computer code PHINT. The level scheme is readily explained with this model up to around 2 MeV. Good agreement between theory and experiment was also obtained for 204 Rn and 206 Rn, but the limited detail in these decay schemes does not provide conclusive evidence for the applicability of the IBA. 28 figures, 10 tables

Dynamics of anisotropic power-law f(R) cosmology

International Nuclear Information System (INIS)

Shamir, M. F.

2016-01-01

Modified theories of gravity have attracted much attention of the researchers in the recent years. In particular, the f(R) theory has been investigated extensively due to important f(R) gravity models in cosmological contexts. This paper is devoted to exploring an anisotropic universe in metric f(R) gravity. A locally rotationally symmetric Bianchi type I cosmological model is considered for this purpose. Exact solutions of modified field equations are obtained for a well-known f(R) gravity model. The energy conditions are also discussed for the model under consideration. The viability of the model is investigated via graphical analysis using the present-day values of cosmological parameters. The model satisfies null energy, weak energy, and dominant energy conditions for a particular range of the anisotropy parameter while the strong energy condition is violated, which shows that the anisotropic universe in f(R) gravity supports the crucial issue of accelerated expansion of the universe.

Dynamics of anisotropic power-law f(R) cosmology

Energy Technology Data Exchange (ETDEWEB)

Shamir, M. F., E-mail: farasat.shamir@nu.edu.pk [National University of Computer and Emerging Sciences, Lahore Campus, Department of Sciences and Humanities (Pakistan)

2016-12-15

Modified theories of gravity have attracted much attention of the researchers in the recent years. In particular, the f(R) theory has been investigated extensively due to important f(R) gravity models in cosmological contexts. This paper is devoted to exploring an anisotropic universe in metric f(R) gravity. A locally rotationally symmetric Bianchi type I cosmological model is considered for this purpose. Exact solutions of modified field equations are obtained for a well-known f(R) gravity model. The energy conditions are also discussed for the model under consideration. The viability of the model is investigated via graphical analysis using the present-day values of cosmological parameters. The model satisfies null energy, weak energy, and dominant energy conditions for a particular range of the anisotropy parameter while the strong energy condition is violated, which shows that the anisotropic universe in f(R) gravity supports the crucial issue of accelerated expansion of the universe.

76 FR 50881 - Required Scale Tests

Science.gov (United States)

2011-08-17

... RIN 0580-AB10 Required Scale Tests AGENCY: Grain Inspection, Packers and Stockyards Administration... required scale tests. Those documents defined ``limited seasonal basis'' incorrectly. This document... 20, 2011 (76 FR 3485) and on April 4, 2011 (76 FR 18348), concerning required scale tests. Those...

Clustering of galaxies with f(R) gravity

Science.gov (United States)

Capozziello, Salvatore; Faizal, Mir; Hameeda, Mir; Pourhassan, Behnam; Salzano, Vincenzo; Upadhyay, Sudhaker

2018-02-01

Based on thermodynamics, we discuss the galactic clustering of expanding Universe by assuming the gravitational interaction through the modified Newton's potential given by f(R) gravity. We compute the corrected N-particle partition function analytically. The corrected partition function leads to more exact equations of state of the system. By assuming that the system follows quasi-equilibrium, we derive the exact distribution function that exhibits the f(R) correction. Moreover, we evaluate the critical temperature and discuss the stability of the system. We observe the effects of correction of f(R) gravity on the power-law behaviour of particle-particle correlation function also. In order to check the feasibility of an f(R) gravity approach to the clustering of galaxies, we compare our results with an observational galaxy cluster catalogue.

78 FR 1570 - Semiannual Regulatory Agenda

Science.gov (United States)

2013-01-08

... Deregulatory Priorities. Gregory H. Woods, General Counsel. Energy Efficiency and Renewable Energy--Proposed... Action 10/01/12 77 FR 59719 Regulatory Flexibility Analysis Required: Yes. Agency Contact: Stephen Witkowski, Phone: 202 586-7463, Email: stephen[email protected] . RIN: 1904-AB90 [FR Doc. 2012-31497...

Spectroscopy of high spin states in sup(211,212,213)Fr

International Nuclear Information System (INIS)

Byrne, A.P.; Dracoulis, G.D.; Fahlander, C.; Hubel, H.; Poletti, A.R.; Stuchbery, A.E.; Gerl, J.; Davie, R.F.; Poletti, S.J.

1985-08-01

The level structures of 211 Fr, 212 Fr and 213 Fr have been observed to high spins, approx. 28(h/2π) (and excitation energies approx. 8 MeV) using a variety of gamma-ray spectroscopic techniques. The structure of these nuclides is discussed in terms of couplings of single particle states through empirical shell model calculations. Good agreement with experiment is obtained. In 212 Fr and 213 Fr core-excited configurations are required to explain the properties of the highest states. A number of long lived states were observed in each nucleus some of which decay by by enhanced E3 transitions. The E3 transition strengths are discussed

Alpha decay 225Ac→221Fr

International Nuclear Information System (INIS)

Kudrya, S.A.; Sergienko, V.A.; Gorozhankin, V.M.; Gromov, K.Ya.; Malikov, Sh.R.; Malov, L.A.; Fominykh, V.I.; Tsupko-Sitnikov, V.V.; Chumin, V.G.; Yakushev, E.A.

2002-01-01

In-depth investigation of (α-γ)-coincidences at the 225 Ac decay is carried out. Twenty-one new weak γ-rays are found; 18 γ-rays earlier ascribed to the 225 Ac decay are not confirmed. The quantitative analysis of the (α-γ)-coincidences makes it possible to find the intensity of population of 221 Fr levels by the α decay and multipolarities of five weak γ-transitions. The conversion electron spectrum is investigated in the range of 5-24 keV with a high (some 20 eV) energy resolution. A new M1 type 10.6-keV γ-transition is found. The proposed 225 Ac decay scheme includes 31 excited 221 Fr states. Parities are established for 16 of them. Possible spin values are proposed for 221 Fr levels. Properties of excited 221 Fr states are satisfactorily described by the quasiparticle-phonon nuclear model without the assumption of static octupole deformation

75 FR 66762 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2010-10-29

... and Salary Surveys. Agency form number: FR 29a,b. OMB control number: 7100-0290. Frequency: FR 29a, annually; FR 29b, on occasion. Reporters: Employers considered competitors for Federal Reserve employees... Institutions Reforms, Recovery and Enforcement Act of 1989 (FIRREA) agencies \\1\\ conduct the FR 29a survey...

75 FR 50763 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2010-08-17

... competitors of the Federal Reserve Board. The data from the surveys primarily are used to determine the... and Salary Surveys. Agency form number: FR 29a,b. OMB control number: 7100-0290. Frequency: FR 29a, annually; FR 29b, on occasion. Reporters: Employers considered competitors for Federal Reserve employees...

78 FR 30327 - Endangered Species; Marine Mammals; Issuance of Permits

Science.gov (United States)

2013-05-22

.... Applicant Federal Register notice Permit issuance date Endangered Species 65816A Lewis Henderson........ 77... FR 24510; April 24, June 1, 2012. 2012. 69106A Lewis Henderson........ 77 FR 24510; April 24, June 1... 11, 2012. 2012. 213382 Virginia Safari Park & 77 FR 26779; May 7, July 21, 2012. Preservation Center...

ionFR: Ionospheric Faraday rotation [Dataset

NARCIS (Netherlands)

Sotomayor-Beltran, C.; et al., [Unknown; Hessels, J.W.T.; van Leeuwen, J.; Markoff, S.; Wijers, R.A.M.J.

2013-01-01

IonFR calculates the amount of ionospheric Faraday rotation for a specific epoch, geographic location, and line-of-sight. The code uses a number of publicly available, GPS-derived total electron content maps and the most recent release of the International Geomagnetic Reference Field. ionFR can be

78 FR 47412 - Tyson D. Quy, M.D.; Decision and Order

Science.gov (United States)

2013-08-05

... Green, Jr., M.D., 59 FR 51,453 (DEA 1994); David E. Trawick, D.D.S., 53 FR 5,326 (DEA 1988). Here, the...) (ten years); Norman Alpert, M.D., 58 FR 67,420, 67,421 (DEA 1993) (seven years). Here, the conditions...

78 FR 44275 - Semiannual Regulatory Agenda

Science.gov (United States)

2013-07-23

... Rights. National Park Service--Completed Actions Regulation Sequence No. Title Identifier No. 200 Winter.... Timetable: Action Date FR Cite NPRM 07/00/13 Final Action 05/00/14 Regulatory Flexibility Analysis Required...: Action Date FR Cite NPRM 10/00/14 Final Action 10/00/14 Regulatory Flexibility Analysis Required: Yes...

Solar System constraints to general f(R) gravity

International Nuclear Information System (INIS)

Chiba, Takeshi; Smith, Tristan L.; Erickcek, Adrienne L.

2007-01-01

It has been proposed that cosmic acceleration or inflation can be driven by replacing the Einstein-Hilbert action of general relativity with a function f(R) of the Ricci scalar R. Such f(R) gravity theories have been shown to be equivalent to scalar-tensor theories of gravity that are incompatible with Solar System tests of general relativity, as long as the scalar field propagates over Solar System scales. Specifically, the parameterized post-Newtonian (PPN) parameter in the equivalent scalar-tensor theory is γ=1/2, which is far outside the range allowed by observations. In response to a flurry of papers that questioned the equivalence of f(R) theory to scalar-tensor theories, it was recently shown explicitly, without resorting to the scalar-tensor equivalence, that the vacuum field equations for 1/R gravity around a spherically symmetric mass also yield γ=1/2. Here we generalize this analysis to f(R) gravity and enumerate the conditions that, when satisfied by the function f(R), lead to the prediction that γ=1/2

f(R) gravity and chameleon theories

International Nuclear Information System (INIS)

Brax, Philippe; Bruck, Carsten van de; Davis, Anne-Christine; Shaw, Douglas J.

2008-01-01

We analyze f(R) modifications of Einstein's gravity as dark energy models in the light of their connection with chameleon theories. Formulated as scalar-tensor theories, the f(R) theories imply the existence of a strong coupling of the scalar field to matter. This would violate all experimental gravitational tests on deviations from Newton's law. Fortunately, the existence of a matter dependent mass and a thin-shell effect allows one to alleviate these constraints. The thin-shell condition also implies strong restrictions on the cosmological dynamics of the f(R) theories. As a consequence, we find that the equation of state of dark energy is constrained to be extremely close to -1 in the recent past. We also examine the potential effects of f(R) theories in the context of the Eoet-wash experiments. We show that the requirement of a thin shell for the test bodies is not enough to guarantee a null result on deviations from Newton's law. As long as dark energy accounts for a sizeable fraction of the total energy density of the Universe, the constraints that we deduce also forbid any measurable deviation of the dark energy equation of state from -1. All in all, we find that both cosmological and laboratory tests imply that f(R) models are almost coincident with a ΛCDM model at the background level.

Alpha decay 225 Ac → 221Fr

International Nuclear Information System (INIS)

Gromov, K. Ya.; Gorozhankin, V.M.; Malov, L.A.; Fominykh, V.I.; Tsupko-Sitnikov, V.V.; Chumin, V.G.; Jakushev, E.A.; Kudrya, S.A.; Sergienko, V.A.; Malikov, Sh.R.

2004-01-01

Full text: Considerable attention has been given to nuclei with A = 220 - 230 recently. In this region there occurs transition from the spherical to the deformed nuclear shape, which gives rise to some specific features in the nuclear structure. In particular, negative parity levels with low excitation energies have been found in even-even nuclei from this region [1, 2]. One of the nuclei allowing experimental investigation of the above properties is 221 Fr. The nuclide 221 Fr is from the region of isotopes which does not include stable nuclei and thus it cannot be studied in several-nucleon transfer reactions. In addition, the neutron excess in this nucleus makes it impossible to study the nucleus in reactions with heavy ions. Experimental information on the 221 Fr level structure can only be gained from investigation of the 225 Ac (T 1/2 = 10 days) alpha decay or the 221 Rn (T 1/2 = 25 min) beta decay. In the latter case the possibilities of the investigation are restricted by difficulties in making of 221 Rn sources. Therefore, most information on the structure and properties of 221 Fr is derived from investigation of the 225 Ac α -decay [3]. In-depth investigation of ( α - γ )- coincidences at the 225 Ac decay is carried out. Twenty-one new weak γ - rays are found; 18 γ-rays earlier ascribed to the 225 Ac decay are not confirmed. The quantitative analysis of the ( α - γ )- coincidences makes it possible to find the intensity of 221 Fr levels by the decay and multipolarities of five weak γ -transitions. The conversion electron spectrum is investigated in the range of 5 † 24 keV with a high (some 20 eV) energy resolution. A new M1 type 10.6-keV γ-transition is found. The proposed 225 Ac decay scheme includes 31 excited 221 Fr states. Parities are established for 16 of them. Possible spin values are proposed for 221 Fr levels. Properties of excited 221 Fr states are satisfactorily described by the quasiparticle-phonon nuclear model without the

US Tune Purse Seine Fleet History & Activity Database

Data.gov (United States)

National Oceanic and Atmospheric Administration, Department of Commerce — The NMFS SWR has collected historical vessel information on the U.S. tuna cannery baitboat and purse seine fleets for many years. The database's first record of a...

Constraint propagation equations of the 3+1 decomposition of f(R) gravity

International Nuclear Information System (INIS)

Paschalidis, Vasileios; Shapiro, Stuart L; Halataei, Seyyed M H; Sawicki, Ignacy

2011-01-01

Theories of gravity other than general relativity (GR) can explain the observed cosmic acceleration without a cosmological constant. One such class of theories of gravity is f(R). Metric f(R) theories have been proven to be equivalent to Brans-Dicke (BD) scalar-tensor gravity without a kinetic term (ω = 0). Using this equivalence and a 3+1 decomposition of the theory, it has been shown that metric f(R) gravity admits a well-posed initial value problem. However, it has not been proven that the 3+1 evolution equations of metric f(R) gravity preserve the (Hamiltonian and momentum) constraints. In this paper, we show that this is indeed the case. In addition, we show that the mathematical form of the constraint propagation equations in BD-equilavent f(R) gravity and in f(R) gravity in both the Jordan and Einstein frames is exactly the same as in the standard ADM 3+1 decomposition of GR. Finally, we point out that current numerical relativity codes can incorporate the 3+1 evolution equations of metric f(R) gravity by modifying the stress-energy tensor and adding an additional scalar field evolution equation. We hope that this work will serve as a starting point for relativists to develop fully dynamical codes for valid f(R) models.

The improvement of the heat transfer model for sodium-water reaction jet code

International Nuclear Information System (INIS)

Hashiguchi, Yoshirou; Yamamoto, Hajime; Kamoshida, Norio; Murata, Shuuichi

2001-02-01

For confirming the reasonable DBL (Design Base Leak) on steam generator (SG), it is necessary to evaluate phenomena of sodium-water reaction (SWR) in an actual steam generator realistically. The improvement of a heat transfer model on sodium-water reaction (SWR) jet code (LEAP-JET ver.1.40) and application analysis to the water injection tests for confirmation of propriety for the code were performed. On the improvement of the code, the heat transfer model between a inside fluid and a tube wall was introduced instead of the prior model which was heat capacity model including both heat capacity of the tube wall and inside fluid. And it was considered that the fluid of inside the heat exchange tube was able to treat as water or sodium and typical heat transfer equations used in SG design were also introduced in the new heat transfer model. Further additional work was carried out in order to improve the stability of the calculation for long calculation time. The test calculation using the improved code (LEAP-JET ver.1.50) were carried out with conditions of the SWAT-IR·Run-HT-2 test. It was confirmed that the SWR jet behavior on the result and the influence to the result of the heat transfer model were reasonable. And also on the improved code (LEAP-JET ver.1.50), user's manual was revised with additional I/O manual and explanation of the heat transfer model and new variable name. (author)

75 FR 57690 - Acquisition Regulation: Sustainable Acquisition

Science.gov (United States)

2010-09-22

... general guidelines issued by OMB. OMB's guidelines were published at 67 FR 8452 (February 22, 2002), and DOE's guidelines were published at 67 FR 62446 (October 7, 2002). DOE has reviewed today's rule under... products. (5) Environmentally preferable and energy efficient electronics including desktop computers...

Basic mode of nonlinear spin-wave resonance in normally magnetized ferrite films

International Nuclear Information System (INIS)

Gulyaev, Yu.V.; Zil'berman, P.E.; Timiryazev, A.G.; Tikhomirova, M.P.

2000-01-01

Modes of nonlinear and spin-wave resonance (SWR) in the normally magnetized ferrite films were studied both theoretically and experimentally. The particular emphasis was placed on the basic mode of SWR. One showed theoretically that with the growth of the precession amplitude the profile of the basic mode changed. The nonlinear shift of the resonance field depends on the parameters of fixing of the surface spins. Films of ferroyttrium garnet (FYG) with strong gradient of the single-axis anisotropy field along the film thickness, as well as, FYG films of the submicron thickness where investigated experimentally. With the intensification of Uhf-power one observed the sublinear shift of the basic mode resonance field following by the superlinear growth of the absorbed power. That kind of behaviour is explained by variation of the profile of the varying magnetization space distribution [ru

TWG-FR Activity Report for the Period May 2011 – May 2012

International Nuclear Information System (INIS)

Monti, Stefano

2012-01-01

Recent Recommendations of the TWG-FR & implementation: ⇨ Increase the efforts to make more countries participating in its activities → Sweden became full member of TWG-FR this year. ⇨ Concentrate all research and technical activities related to FR under the TWG-FR umbrella. An efficient and effective interface between INPRO and TWG-FR should be established to avoid duplication/overlapping of activities → done. ⇨ Closer cooperation links should be established with FR-related activities implemented within the framework of other international programmes (e.g. GIF, INPRO, OECD/NEA, ESNII) → systematic collaboration with INPRO, interface with GIF, participation to NEA-TF on SFR, member of External Advisory Committee of some Euratom projects. ⇨ Continue to secure training and education in the field of Fast Neutron System Physics, Technology and Applications, and respective Schools/Seminars should be held on a regular basis → 4 events: 2 in 2011 and 2 in 2012 (Trieste, Bariloche). ⇨ Launch new CRPs in the field of safety of FR with special emphasis on severe accidents → launch of EBR-II CRP + 4 related Workshops/TMs. ⇨ The IAEA, with technical inputs from the TWG-FR, should produce international safety standards relevant to fast reactors → Initiated discussion with Department of Nuclear Safety and Security + INPRO/GIF for SFR Safety Design Criteria

WIRE project- Soil water repellence in biodiverse semi arid environments: new insights and implications for ecological restoration

Science.gov (United States)

Muñoz-Rojas, Miriam; Jiménez-Morillo, Nicasio T.; Jordan, Antonio; Zavala, Lorena M.; Stevens, Jason; González-Pérez, Jose Antonio

2017-04-01

Background Soil water repellency (SWR) can have a critical effect on the restoration of disturbed ecosystems causing poor plant establishment and promoting erosion processes. Although SWR has been reported in most continents of the world for different soil types, climate conditions and land uses, there are still many research gaps in the knowledge of its causes and controlling factors (Doerr et al.,2000; Jordan et al., 2013), particularly in Mediterranean arid semi arid environments which are largely affected by this phenomenon. The WIRE project aims to investigate SWR in soils under different vegetation types of dominant biodiverse ecosystems of Western Australia (WA), e.g. hummock grasslands and Banksia woodlands, as well as characterizing organic compounds that induce hydrophobicity in these soils. Banksia woodlands (BW) are of particular interest in this project. These are iconic ecosystems of WA composed by an overstorey dominated by Proteaceae that are threatened by sand mining activities and urban expansion. Conservation and restoration of these woodlands are critical but despite considerable efforts to restore these areas, the success of current rehabilitation programs is poor due to the high sensitivity of the ecosystem to drought stress and the disruption of water dynamics in mature BW soils that result in low seedling survival rates (5-30%). The main objectives of this collaborative research are: i) to identify SWR intensity and severity under different vegetation types and evaluate controlling factors in both hummock grasslands and BW (ii) to characterize hydrophobic compounds in soils using analytical pyrolysis techniques and iii) to investigate the impact of SWR on water economy in relation with soil functioning and plant strategies for water uptake in pristine BW. Methods In a series of field trials and experimental studies, we measured SWR of soil samples under lab conditions in oven-dry samples (48 h, 105 °C) that were previously collected under

Effective Dark Matter Halo Catalog in f(R) Gravity.

Science.gov (United States)

He, Jian-Hua; Hawken, Adam J; Li, Baojiu; Guzzo, Luigi

2015-08-14

We introduce the idea of an effective dark matter halo catalog in f(R) gravity, which is built using the effective density field. Using a suite of high resolution N-body simulations, we find that the dynamical properties of halos, such as the distribution of density, velocity dispersion, specific angular momentum and spin, in the effective catalog of f(R) gravity closely mimic those in the cold dark matter model with a cosmological constant (ΛCDM). Thus, when using effective halos, an f(R) model can be viewed as a ΛCDM model. This effective catalog therefore provides a convenient way for studying the baryonic physics, the galaxy halo occupation distribution and even semianalytical galaxy formation in f(R) cosmologies.

Alternative Regulierungsansätze im Kontext der Better Regulation Agenda : eine Analyse von Konzepten, Potenzialen und Erfolgsfaktoren von Regulierung im Schatten staatlicher Hierarchie

OpenAIRE

Denker, Philipp

2008-01-01

Der vorliegende Beitrag untersucht das Potential und die Bedingungen alternativer Regulierungsformen vor dem Hintergrund von Better Regulation in Deutschland. Nahezu alle EU- und OECD-Staaten betreiben heute umfassende politische Reformprogramme zur Modernisierung der Regulierungsarchitekturen, die unter dem Label Better Regulation subsumiert werden. Die Zielsetzung dieser Programme besteht zum einen in der wirtschaftsfreundlichen Reduktion von Regulierungskosten und zum anderen in der Effekt...

Charakterisierung und Modellierung der interferierenden klimatischen, orographischen und anthropogenen Einflüsse auf die Landschaftsentwicklung des oberen Rio Guadalentín (Spanien)

OpenAIRE

Riedlinger, Torsten

2006-01-01

Mit der vorliegenden Arbeit wurde exemplarisch die holozäne Klima- und Landschaftsentwicklung für einen semiariden Natur- und Kulturraum in Südost-Spanien rekonstruiert. Dabei wurden unterschiedliche klimatologische, orographische und anthropogene Einflussfaktoren beschrieben und deren interdependentes Wirkungsgefüge abgeleitet. Dies erfolgte durch die Analyse des subrezenten Regionalklimas, anhand eines an die semi-ariden Bedingungen angepassten Wasserhaushaltsmodells sowie durch die Einbezi...

Einfluss des Alltagskontextes auf den Prozess einer Ernährungsverhaltensmodifikation : eine qualitative Untersuchung von Personen mit erhöhten Cholesterinwerten

OpenAIRE

Hildebrandt, Karen

2012-01-01

Das erkenntnisleitende Forschungsinteresse gilt einer umfassenden Betrachtung ernährungsbezogenen Handelns in den drei Alltagsbereichen „Haushalt/Familie“, „Arbeitsplatz/Kollegen“ und „Freizeit/Freunde“ mit dem Ziel, individuell erlebte Bedingungen und Faktoren einer Ernährungsverhaltensmodifikation herauszuarbeiten. In die Untersuchung sind Personen mit einer Fettstoffwechselstörung eingeschlossen worden, die sich in verschiedenen Stadien einer Gesundheitsverhaltensmodifikation befinden. ...

How Delisea pulchra furanones affect quorum sensing and swarming motility in Serratia liquefaciens MG1

DEFF Research Database (Denmark)

Rasmussen, Thomas Bovbjerg; Manefield, M.; Andersen, Jens Bo

2000-01-01

Halogenated furanones produced by the benthic marine macroalga Delisea pulchra inhibit swarming motility of Serratia liquefaciens MG1. This study demonstrates that exogenously added furanones control transcription of the quorum sensing regulated gene swrA in competition with the cognate signal...

基于FrFT-MUSIC的空时频算法%Space-time-frequency Algorithm Based on FrFT-MUSIC

Institute of Scientific and Technical Information of China (English)

张声杰; 刘梅

2011-01-01

针对传统时频分析方法难以对星载分布式合成孔径雷达(SAR)系统中地面目标速度进行准确估计的问题,提出了分数阶傅里叶变换(FrFT)-多重信号分类(MUSIC)空时频方法.利用FrFT获得信号向量并构造空时频分布矩阵；应用该分布矩阵替代传统MUSIC算法中的协方差矩阵,从而求得FrFT- MUSIC空时频谱,通过对谱函数进行搜索估计目标速度.仿真实验表明,该方法的目标速度估计精度高,抗噪声能力强.%The fractional Fourier transform (FrFT)-multipIe signal classification (MUSIC) space-time-frequency algorithm is proposed to solve the problem that it is difficult for the traditional time-frequency analysis method to accurately estimate the ground targets' azimuth speed which is coupled with spaceborne distributed synthetic aperture radar" (SAR). The signal vector is obtained and the space-time-frequency distribution matrix is formed by FrFT. Then, this distribution matrix is used instead of the traditional MUSIC covariance matrix to construct FrFT- MUSIC spectral function. Target speed is estimated by searching. Simulation results show that this algorithm has a high accuracy of parameter estimation and strong resistance to noise.

Investigation of octupole deformations in the Fr217 nucleus by yrast spectroscopy

International Nuclear Information System (INIS)

Hulne, S.

1988-01-01

The spectroscopic characteristics of the yrast levels of Fr217 are determined. The level scheme up to a value of J = (39/2 + ) for angular momentum and parity is established. The production of the Fr217 nucleus in a heavy ion collision reaction was only possible by using a radioactive Pb210 target. The method for preparing the target is described. The Fr217 nucleus belongs to the category of nuclei showing octupole effects. Mass A = 217 seems to be the lower limit of the region where these effects occur [fr

76 FR 58300 - Affirmative Decisions on Petitions for Modification Granted in Whole or in Part

Science.gov (United States)

2011-09-20

... govern the application, processing, and disposition of petitions for modification. This Federal Register... Affected: 30 CFR 75.1700 (Oil and gas wells). Docket Number: M-2009-005-C. FR Notice: 74 FR 23747 (May 20... CFR 75.1700 (Oil and gas wells). Docket Number: M-2009-006-C. FR Notice: 74 FR 23748 (May 20, 2009...

Mayaro virus infection in amazonia: a multimodel inference approach to risk factor assessment.

Directory of Open Access Journals (Sweden)

Fernando Abad-Franch

Full Text Available BACKGROUND: Arboviral diseases are major global public health threats. Yet, our understanding of infection risk factors is, with a few exceptions, considerably limited. A crucial shortcoming is the widespread use of analytical methods generally not suited for observational data--particularly null hypothesis-testing (NHT and step-wise regression (SWR. Using Mayaro virus (MAYV as a case study, here we compare information theory-based multimodel inference (MMI with conventional analyses for arboviral infection risk factor assessment. METHODOLOGY/PRINCIPAL FINDINGS: A cross-sectional survey of anti-MAYV antibodies revealed 44% prevalence (n = 270 subjects in a central Amazon rural settlement. NHT suggested that residents of village-like household clusters and those using closed toilet/latrines were at higher risk, while living in non-village-like areas, using bednets, and owning fowl, pigs or dogs were protective. The "minimum adequate" SWR model retained only residence area and bednet use. Using MMI, we identified relevant covariates, quantified their relative importance, and estimated effect-sizes (β ± SE on which to base inference. Residence area (β(Village  =  2.93 ± 0.41; β(Upland = -0.56 ± 0.33, β(Riverbanks  =  -2.37 ± 0.55 and bednet use (β = -0.95 ± 0.28 were the most important factors, followed by crop-plot ownership (β  =  0.39 ± 0.22 and regular use of a closed toilet/latrine (β = 0.19 ± 0.13; domestic animals had insignificant protective effects and were relatively unimportant. The SWR model ranked fifth among the 128 models in the final MMI set. CONCLUSIONS/SIGNIFICANCE: Our analyses illustrate how MMI can enhance inference on infection risk factors when compared with NHT or SWR. MMI indicates that forest crop-plot workers are likely exposed to typical MAYV cycles maintained by diurnal, forest dwelling vectors; however, MAYV might also be circulating in nocturnal, domestic-peridomestic cycles

„Alle Männer sind ‚potentielle Vergewaltiger‘“? – Einige nicht! Book cover Sexual violence against women: How men can be protected from becoming aggressors

Directory of Open Access Journals (Sweden)

Arnfried Bintig

2003-11-01

Full Text Available Das 2002 erschienene Buch Sexuelle Gewalt gegen Frauen von Susanne Kade ist ein umfangreicher und detaillierter Bericht über eine – theoretisch fundierte – empirische Untersuchung möglicher (Sozialisations- Bedingungen, unter denen sich Männer „sexuell gewaltlos“ verhalten, ergänzt um Überlegungen, wie solche Bedingungen bei Jungen und Männern präventiv gefördert werden können. Zentrales Anliegen der Autorin ist die durch einen Perspektivenwechsel (von der potentiellen Täterschaft aller Männer hin zur sexuellen Gewaltlosigkeit einiger mögliche Ressourcenorientierung bei der Präventionsarbeit.Susanne Kade’s book, published in 2002, gives a comprehensive and detailed account of an empirical survey which investigates the (possible conditions of socialisation under which men behave sexually in a non-violent way. The solidly theorised study makes suggestions for the preventive provision of such conditions for boys and men. Kade’s novel point of departure is away from the potential guilt of all men, towards the sexual non-violence of some. Her central aim is to orient the reader towards resources that can be helpful in therapeutic social work.

f(R) gravity, torsion and non-metricity

International Nuclear Information System (INIS)

Sotiriou, Thomas P

2009-01-01

For both f(R) theories of gravity with an independent symmetric connection (no torsion), usually referred to as Palatini f(R) gravity theories, and for f(R) theories of gravity with torsion but no non-metricity, called U4 theories, it has been shown that the independent connection can actually be eliminated algebraically, as long as this connection does not couple to matter. Remarkably, the outcome in both cases is the same theory, which is dynamically equivalent with an ω 0 = -3/2 Brans-Dicke theory. It is shown here that even for the most general case of an independent connection with both non-metricity and torsion, one arrives at exactly the same theory as in the more restricted cases. This generalizes the previous results and explains why assuming that either the torsion or the non-metricity vanishing ultimately leads to the same theory. It also demonstrates that f(R) actions cannot support an independent connection which carries dynamical degrees of freedom, irrespective of how general this connection is, at least as long as there is no connection-matter coupling. (fast track communication)

Can a coupled meteorology–chemistry model reproduce the historical trend in aerosol direct radiative effects over the Northern Hemisphere?

Science.gov (United States)

The ability of a coupled meteorology–chemistry model, i.e., Weather Research and Forecast and Community Multiscale Air Quality (WRF-CMAQ), to reproduce the historical trend in aerosol optical depth (AOD) and clear-sky shortwave radiation (SWR) over the Northern Hemisphere h...

77 FR 32881 - Supervised Securities Holding Company Registration

Science.gov (United States)

2012-06-04

...), The Report of Foreign Banking Organizations (FR Y-7), The Consolidated Financial Statements for Bank... Y-9ES), The Supplement to the Consolidated Financial Statements for Bank Holding Companies (FR Y-9CS... comprehensive consolidated supervision by a foreign regulator, a nonbank financial company supervised by the...

Le developpement de Limacella glioderma (Fr.) R. Maire

NARCIS (Netherlands)

Reijnders, A.F.M.

1979-01-01

A comparison of the development of Limacella guttata (Fr.) Konrad & Maublanc with that of L. glioderma (Fr.) R. Maire shows clearly that the latter is of a more primitive type. This conclusion is based on the following observations: a. Limacella guttata has a pileocarpic development: the first

77 FR 62150 - Approval and Promulgation of Implementation Plans; Kentucky; Approval of Revisions to the...

Science.gov (United States)

2012-10-12

....34 Standard of 10/23/01 66 FR 53661 05/15/91 Performance for Existing Pneumatic Rubber Tire... Abbreviations and 11/19/02 67 FR 69688 05/15/02 Acronyms. 1.04 Performance Tests... 10/23/01 66 FR 53660 11/19... 10/23/01 66 FR 53660 06/13/79 Requirements. Reg 6--Standards of Performance for Existing Affected...

Extra-chromosomal DNA maintenance in Bacillus subtilis, dependence on flagellation factor FliF and moonlighting mediator EdmS.

Science.gov (United States)

Hakumai, Yuichi; Shimomoto, Kouko; Ashiuchi, Makoto

2015-05-15

Extra-chromosomal DNA maintenance (EDM) as an important process in the propagation and genetic engineering of microbes. Bacillus subtilis EdmS (formerly PgsE), a protein comprising 55 amino acids, is a mediator of the EDM process. In this study, the effect of mutation of global regulators on B. subtilis EDM was examined. Mutation of the swrA gene abolished EdmS-mediated EDM. It is known that swrA predominantly regulates expression of the fla/che operon in B. subtilis. We therefore performed EDM analysis using fla/che-deletion mutants and identified an EDM-mediated EDM cooperator in the flgB-fliL region. Further genetic investigation identified the flagellation factor FliF is a crucial EDM cooperator. To our knowledge, this is the first observation of the moonlighting function of FliF in DNA maintenance. Copyright © 2015 Elsevier Inc. All rights reserved.

78 FR 6107 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2013-01-29

... Derivatives Market Activity (FR 3036; OMB No. 7100-0285). The FR 2436 collects similar data on the outstanding... of Foreign Exchange and Derivative Market Activity. Agency form number: FR 3036. OMB control number... and derivatives market and dealers. Estimated annual reporting hours: Turnover Survey, 2,275 hours...

Messung der Respirationsverschiebung intraabdominaler Organe am Beispiel der Leber unter maschineller Ventilation

OpenAIRE

Olbrich, Bernhard

2008-01-01

Ziel dieser Arbeit ist es, die Bewegung intraabominaler Organe am Beispiel der Leber unter den Bedingungen maschineller Beatmung zu quantifizieren. Ein Messverfahren mit Hilfe eines elektromagnetischen Trackingsystems, wurde hierzu im Tierversuch neu entwickelt. Im Anschluss wurden die Messdaten mit Hilfe einer Explorativen Datenanalyse, validiert und ein einfaches Modell entwickelt, das die virtuelle Kompensation der Atemverschiebung ermöglicht. Zusätzlich wird eine praktische Anwendungsmögl...

Witwenverbrennung, Vergewaltigung, Hausfrauenehe – Stützen der Kultur?

Directory of Open Access Journals (Sweden)

Maike Bußmann

2007-11-01

Full Text Available Das Studienbuch zur Transkulturellen Genderforschung hat das Anliegen, die sozialen und kulturellen Bedingungen der Geschlechterverhältnisse in verschiedenen Kulturregionen zu untersuchen und gleichzeitig zur Sensibilisierung der kulturellen Perspektive beizutragen. Hierfür schlagen die Autorinnen den Begriff der Transkulturalität vor, der auf die gegenseitige Durchdringung der Kulturen und auf die interne Heterogenität einer jeden Kultur und ihrer Geschlechterordnung verweist.

Patient Safety Walkaround: a communication tool for the reallocation of health service resources

Science.gov (United States)

Ferorelli, Davide; Zotti, Fiorenza; Tafuri, Silvio; Pezzolla, Angela; Dell’Erba, Alessandro

2016-01-01

Abstract The study aims to evaluate the use of Patient Safety Walkaround (SWR) execution model in an Italian Hospital, through the adoption of parametric indices, survey tools, and process indicators. In the 1st meeting an interview was conducted to verify the knowledge of concepts of clinical risk management (process indicators). One month after, the questions provided by Frankel (survey tool) were administered. Each month after, an SWR has been carried trying to assist the healthcare professionals and collecting suggestions and solutions. Results have been classified according to Vincent model and analyzed to define an action plan. The amount of risk was quantified by the risk priority index (RPI). An organizational deficit concerns the management of the operating theatre. A state of intolerance was noticed of queuing patients for outpatient visits. The lack of scheduling of the operating rooms is often the cause of sudden displacements. A consequence is the conflict between patients and caregivers. Other causes of the increase of waiting times are the presence in the ward of a single trolley for medications and the presence of a single room for admission and preadmission of patients. Patients victims of allergic reactions have attributed such reactions to the presence of other patients in the process of acceptance and collection of medical history. All health professionals have reported the problem of n high number of relatives of the patients in the wards. Our study indicated the consistency of SWR as instrument to improve the quality of the care. PMID:27741109

75 FR 30003 - Privacy Act of 1974; System of Records

Science.gov (United States)

2010-05-28

... and title, by any of the following methods: * Federal Rulemaking Portal: http://www.regulations.gov..., 2006; 71 FR 35342) and OPM/GOVT-5, Recruiting, Examining, and Placement Records (June 19, 2006; 71 FR...

Jahresenergieerträge unterschiedlicher Photovoltaik-Technologien bei verschiedenen klimatischen Bedingungen

OpenAIRE

Zinßer, Bastian

2010-01-01

Es ist sowohl für Ingenieure als auch für Investoren sehr wichtig zu wissen, welche Energiemenge E [kWh] eine Photovoltaik(PV)-Anlage im realen Betrieb ins Stromnetz einspeist. Hintergrund ist meist die Frage nach den Kosten für den Solarstrom in €ct/kWh. Das Datenblatt gibt den Wirkungsgrad von PV-Modulen meist nur für Standardtestbedingungen im Labor an. In der Praxis verursachen erhöhte Modultemperaturen T, schwächere Einstrahlung G und ein anderes Spektrum des Lichts Abweichungen vom ...

Investigation of mass transfer phenomena in biofilm systems; Untersuchung von Stoffuebergangsphaenomenen in Biofilmsystemen

Energy Technology Data Exchange (ETDEWEB)

Waesche, S.; Hempel, D.C. [Technische Univ. Braunschweig (Germany). Inst. fuer Bioverfahrenstechnik; Horn, H. [Fachhochschule Magdeburg (Germany). Hydro- und Abfallchemie

1999-07-01

Substance transfer in the boundary layer bulk/biofilm can be only inadequately described by conventional model concepts. In such cases where the surface structure of a biofilm adapts to given hydraulic conditions, the substance transfer phenomena need to be studied in depth. In addition, the entire biofilm structure is much influenced both by substrate conditions and by hydrodynamic conditions during growth. With a view to quantifying these factors, biofilms were cultured under various substrate and hydrodynamic conditions in tube reactors with a diameter of 2.6 cm. For characterizing the cultured biofilms, biofilm density and substrate turnover measured as maximum mass transfer density were determined in each test series. Biofilm density (dry biomass/biofilm volume) was determined by gravimetry. Maximum mass transfer densities in biofilm were established in batch experiments with excess substrate. By means of oxygen microelectrodes, oxygen profiles in the biofilm were measured directly in the reactor. These measurements concerned biofilms of thicknesses ranging from 400 to 2000 {mu}m, where the biofilms did not yet exhibit erosion. (orig.) [German] Der Stoffuebergang in der Grenzschicht Bulk/Biofilm ist mit herkoemmlichen Modellvorstellungen nur ungenuegend beschreibbar. Eine sich an die aktuellen hydraulischen Bedingungen anpassende Oberflaechenstruktur des Biofilms erfordert eine intensive Untersuchung der Stoffuebergangsphaenomene in derartigen Systemen. Darueber hinaus wird die gesamte Biofilmstruktur sowohl von den Substratbedingungen als auch von den hydrodynamischen Bedingungen waehrend des Wachstums stark beeinflusst. Um diese Faktoren quantifizieren zu koennen, wurden Biofilme bei verschiedenen Substrat- und hydrodynamischen Bedingungen in Rohrreaktoren mit einem Durchmesser von 2,6 cm kultiviert. Zur Charakterisierung der kultivierten Biofilme wurde die Biofilmdichte und der Substratumsatz, gemessen als maximale Massestromdichte, bei jeder Versuchsreihe

Development of Streptomyces sp. FR-008 as an emerging chassis

Directory of Open Access Journals (Sweden)

Qian Liu

2016-09-01

Full Text Available Microbial-derived natural products are important in both the pharmaceutical industry and academic research. As the metabolic potential of original producer especially Streptomyces is often limited by slow growth rate, complicated cultivation profile, and unfeasible genetic manipulation, so exploring a Streptomyces as a super industrial chassis is valuable and urgent. Streptomyces sp. FR-008 is a fast-growing microorganism and can also produce a considerable amount of macrolide candicidin via modular polyketide synthase. In this study, we evaluated Streptomyces sp. FR-008 as a potential industrial-production chassis. First, PacBio sequencing and transcriptome analyses indicated that the Streptomyces sp. FR-008 genome size is 7.26 Mb, which represents one of the smallest of currently sequenced Streptomyces genomes. In addition, we simplified the conjugation procedure without heat-shock and pre-germination treatments but with high conjugation efficiency, suggesting it is inherently capable of accepting heterologous DNA. In addition, a series of promoters selected from literatures was assessed based on GusA activity in Streptomyces sp. FR-008. Compared with the common used promoter ermE*-p, the strength of these promoters comprise a library with a constitutive range of 60–860%, thus providing the useful regulatory elements for future genetic engineering purpose. In order to minimum the genome, we also target deleted three endogenous polyketide synthase (PKS gene clusters to generate a mutant LQ3. LQ3 is thus an “updated” version of Streptomyces sp. FR-008, producing fewer secondary metabolites profiles than Streptomyces sp. FR-008. We believe this work could facilitate further development of Streptomyces sp. FR-008 for use in biotechnological applications.

Watermelon germplasm lines USVL246-FR2 and USVL252-FR2 tolerant to fusarium oxysporum f. sp. niveum race 2

Science.gov (United States)

Two improved germplasm lines of wild watermelon (Citrullus lanatus var. citroides) designated USVL246-FR2 and USVL252-FR2 were released in 2012 by the Agricultural Research Service of the U.S. Department of Agriculture (Wechter et al. 2012). These lines are each highly uniform for growth characteri...

f(R) gravity cosmology in scalar degree of freedom

International Nuclear Information System (INIS)

Goswami, Umananda Dev; Deka, Kabita

2014-01-01

The models of f(R) gravity belong to an important class of modified gravity models where the late time cosmic accelerated expansion is considered as the manifestation of the large scale modification of the force of gravity. f(R) gravity models can be expressed in terms of a scalar degree of freedom by explicit redefinition of model's variable. Here we report about the study of the features of cosmological parameters and hence the cosmological evolution using the scalar degree of freedom of the f(R) = ξR n gravity model in the Friedmann-Lemaître-Robertson-Walker (FLRW) background

76 FR 27904 - Approval and Promulgation of Air Quality Implementation Plans; Indiana

Science.gov (United States)

2011-05-13

... Web site is an ``anonymous access'' system, which means EPA will not know your identity or contact... ``Qualified observer'' defined 9/26/1980 11/5/1981, 46 FR 54943. 1-2-62.1 ``Quench car'' defined 6/11/1993 6/15/1995, 60 FR 31412. 1-2-63 Quenching 9/26/1980 11/5/1981, 46 FR 54943. 1-2-63.1 ``Quench reservoir...

75 FR 6112 - Approval and Promulgation of Air Quality Implementation Plans; Georgia: Update to Materials...

Science.gov (United States)

2010-02-08

...) Incinerators........ 6/15/98 12/2/99, 64 FR 67491 391-3-1-.02(2)(d) Fuel-burning 1/17/79 9/18/79, 44 FR 54047...-.02(2)(aa) VOC Emissions from 1/9/91 10/13/92, 57 FR 46780 Wire Coating. 391-3-1-.02(2)(bb) Petroleum...)(lll) NOX Emissions from 2/16/00 7/10/01, 66 FR 35906 Fuel-burning Equipment. 391-3-1-.02(2)(mmm) NOX...

77 FR 59244 - Agency Information Collection Activities; Extension of Currently-Approved Information Collection...

Science.gov (United States)

2012-09-26

... September 30, 1998 (63 FR 52192). Pursuant to this authority, the BTS, now part of the Research and... transferred the responsibility for the F&OS program from BTS to FMCSA (69 FR 51009). On August 10, 2006 (71 FR... financial and statistical reporting regulations of BTS formerly located in chapter XI of title 49 CFR to...

Reduction of FR900525 using an S-(2-aminoethyl) l-cysteine-resistant mutant.

Science.gov (United States)

Shimizu, Shiho; Futase, Ayako; Yokoyama, Tatsuya; Ueda, Satoshi; Honda, Hiroyuki

2017-06-01

FK506 (tacrolimus), a macrolide compound with immunosuppressant activity, has been proven to have clinical importance and has been manufactured industrially since 1993 by using mutants with high FK506-production ability; these mutants have been developed from the wild strain Streptomyces tsukubaensis No. 9993. FR900525 is one of the by-products of FK506 production. However, there was no effective industrial method to separate FR900525 from FK506 due to the structural similarity between the two compounds. Therefore, reducing the level of FR900525 was a serious problem in the industrial strain A. In this study, we aimed to reduce the FR900525 production. We first determined that pipecolic acid level was a critical parameter for controlling FR900525 production in strain A. S-(2-Aminoethyl) l-cysteine (AEC)-resistant mutants has been reported to increase lysine productivity successfully in a variety of lysine-producing microorganisms. Therefore, next, we applied a selection of AEC-resistant mutants to enhance pipecolic acid biosynthesis. Finally, four AEC-resistant mutants were obtained from strain A using ultraviolet irradiation, and three of them showed less FR900525 productivity compared to the parental strain A. Our findings indicated that AEC resistance was effective phenotype marker for increasing pipecolic acid productivity and for reducing FR900525 production in S. tsukubaensis. Thus, our study provides an efficient method for reducing FR90025 level during FK506 biosynthesis. Copyright © 2017 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

The influence of fire history, plant species and post-fire management on soil water repellency in a Mediterranean catchment

NARCIS (Netherlands)

Keesstra, Saskia; Wittenberg, Lea; Maroulis, Jerry; Sambalino, Francesco; Malkinson, Dan; Cerdà, Artemi; Pereira, Paulo

2017-01-01

Fire is a key factor impacting soil hydrology in many Mediterranean catchments. Soil water repellency (SWR) can stimulate land degradation processes by reducing the affinity of soil and water thereby triggering a reduction in soil fertility and increasing soil and water losses. The effects of two

Design of a process to manufacture ethylene from ethane by means of a shock wave reactor

NARCIS (Netherlands)

Van der Dussen, J.; Farrelly, A.; Kort, G.; Twigt, V.; Weng, H.

2006-01-01

The aim of this project was to evaluate the possibility of building an economically viable SWR-plant while conforming to predetermined constraints and criteria. Globally, 117-million t/a ethylene is produced. The plant designed produces 1 Mt/a ethylene. The feedstock available is provided from

Multidimensional evaluation on FR cycle systems

International Nuclear Information System (INIS)

Nakai, Ryodai; Fujii, Sumio; Takakuma, Katsuyuki; Katoh, Atsushi; Ono, Kiyoshi; Ohtaki, Akira; Shiotani, Hiroki

2004-01-01

This report explains some results of the multidimensional evaluation on various fast reactor cycle system concepts from an interim report of the 2nd phase of ''Feasibility Study on Commercialized FR Cycle System''. This method is designed to give more objective and more quantitative evaluations to clarify commercialized system candidate concepts. Here we brief current evaluation method from the five viewpoints of safety, economy, environment, resource and non-proliferation, with some trial evaluation results for some cycles consist of promising technologies in reactor, core and fuel, reprocessing and fuel manufacture. Moreover, we describe FR cycle deployment scenarios which describe advantages and disadvantages of the cycles from the viewpoints of uranium resource and radioactive waste based on long-term nuclear material mass flow analyses and advantages of the deployment of FR cycle itself from the viewpoints of the comparison with alternative power supplies as well as cost and benefit. (author)

A=225 implantation for $^{221}$Fr source for TRIUMF atom trap

CERN Multimedia

The FrPNC Collaboration is mounting an atom trap for parity violation experiments and precision spectroscopy on francium atoms at TRIUMF's ISAC facility. We would like to use ISOLDE's capability of simultaneously implanting A=225 (while another experiment runs online) to make a long-lived source feeding $^{221}$Fr for tests of the trap. $^{225}$Ra $\\beta$-decays to $^{225}$Ac, which then $\\alpha$-decays, producing 100 keV $^{221}$Fr t$_{1/2}$= 4.8 minute recoils. The implanted A=225 source would be shipped to TRIUMF, where it would be held for several minutes at a time a few mm from the same yttrium foil that normally receives the ISAC beam. SRIM calculations imply that 20% of the $^{221}$Fr will be implanted in a 1 cm diameter spot on the yttrium. Then the yttrium foil is moved to the trap and heated to release the Fr atoms, just as in normal ISAC online operation. A test implantation will be done at 10$^{7}$/sec production for 1 day, testing whether carbon cracking on the implantation foil in the mass separ...

Effect of hydraulic hysteresis on the stability of infinite slopes under steady infiltration

Science.gov (United States)

Chen, Pan; Mirus, Benjamin B.; Lu, Ning; Godt, Jonathan W.

2017-01-01

Hydraulic hysteresis, including capillary soil water retention (SWR), air entrapment SWR, and hydraulic conductivity, is a common phenomenon in unsaturated soils. However, the influence of hydraulic hysteresis on suction stress, and subsequently slope stability, is generally ignored. This paper examines the influence of each of these three types of hysteresis on slope stability using an infinite slope stability analysis under steady infiltration conditions. First, hypothetical slopes for representative silty and sandy soils are examined. Then a monitored hillslope in the San Francisco Bay Area, California is assessed, using observed rainfall conditions and measured hydraulic and geotechnical properties of the colluvial soil. Results show that profiles of suction stress and the corresponding factor of safety are generally strongly affected by hydraulic hysteresis. Results suggest that each of the three types of hydraulic hysteresis may play a major role in the occurrence of slope failure, indicating that ignoring hydraulic hysteresis will likely lead to underestimates of failure potential and hence to inaccurate slope stability analysis.

Analysis of Decay Heat Removal by Natural Convection in LMR with a Combined Steam Generator

International Nuclear Information System (INIS)

Kim, Eui Kwang; Eoh, Jae Hyuk; Han, Ji Woong; Lee, Tae Ho

2011-01-01

Liquid metal reactors (LMRs) conventionally employ an intermediate heat transport system (IHTS) to protect the nuclear core during a sodium-water reaction (SWR) event. However these SWR-related components increase plant construction costs. In order to eliminate the need for an IHTS, a combined steam generator, which is an integrated heat exchanger of a steam generator and intermediate heat exchanger (IHX), was proposed by the Korea Atomic Energy Research Institute (KAERI). The objective of this work is to analyze the natural circulation heat removal capability of the rector system using a combined steam generator. As a means of decay heat removal, a normal heat transport path is composed of a primary sodium system, intermediate lead-bismuth circuit combined with SG and steam/water system. This paper presents the results of the possible temperature and natural circulation flows in all circuits during a steady state for a given reactor power level varied as a function of time

Sharp-Wave Ripples Orchestrate the Induction of Synaptic Plasticity during Reactivation of Place Cell Firing Patterns in the Hippocampus

Directory of Open Access Journals (Sweden)

Josef H.L.P. Sadowski

2016-03-01

Full Text Available Place cell firing patterns reactivated during hippocampal sharp-wave ripples (SWRs in rest or sleep are thought to induce synaptic plasticity and thereby promote the consolidation of recently encoded information. However, the capacity of reactivated spike trains to induce plasticity has not been directly tested. Here, we show that reactivated place cell firing patterns simultaneously recorded from CA3 and CA1 of rat dorsal hippocampus are able to induce long-term potentiation (LTP at synapses between CA3 and CA1 cells but only if accompanied by SWR-associated synaptic activity and resulting dendritic depolarization. In addition, we show that the precise timing of coincident CA3 and CA1 place cell spikes in relation to SWR onset is critical for the induction of LTP and predictive of plasticity generated by reactivation. Our findings confirm an important role for SWRs in triggering and tuning plasticity processes that underlie memory consolidation in the hippocampus during rest or sleep.

Boreside rotating ultrasonic tester for wastage determination of LMFBR-type steam generator tubes

International Nuclear Information System (INIS)

Neely, H.H.; Renger, H.L.

1979-01-01

Large sodium-water reaction (SWR) leak tests are being run in near-prototypic steam generators at prototypic plant conditions of the Liquid Metal Fast Breeder Reactor (LMFBR). These tests simulate various types of steam tube failure at predetermined locations. A SWR results in a highly energetic-exothermic-caustic reaction which erodes neighboring tubes. A boreside-rotating ultrasonic inspection device was developed to measure wall thickness and inside diameter of the 2/one quarter/Cr-1 Mo, 10.1 mm I.D. steam tubes. Rotation of the UT beam yields a complimentary scan of the full tube in a single pass. The UT system was designed with a 15 MHz transducer in pulse-echo compression-wave mode at a pulse rate of 10,000/second. The UT beam is rotated at 20 r/s on a 1.27 mm pitch. System outputs are diameter, wall thickness, attitude, and axial position. Measurements are processed, then fed to a CRT and computer for later retrieval and plotting

Water- and air-quality and surficial bed-sediment monitoring of the Sweetwater Reservoir watershed, San Diego County, California, 2003-09

Science.gov (United States)

Mendez, Gregory O.; Majewski, Michael S.; Foreman, William T.; Morita, Andrew Y.

2015-01-01

In 1998, the U.S. Geological Survey, in cooperation with the Sweetwater Authority, began a study to assess the overall health of the Sweetwater watershed in San Diego County, California. This study was designed to provide a data set that could be used to evaluate potential effects from the construction and operation of State Route 125 within the broader context of the water quality and air quality in the watershed. The study included regular sampling of water, air, and surficial bed sediment at Sweetwater Reservoir (SWR) for chemical constituents, including volatile organic compounds (VOCs), base-neutral and acid- extractable organic compounds (BNAs) that include polycyclic aromatic hydrocarbons (PAHs), pesticides, and metals. Additionally, water samples were collected for anthropogenic organic indicator compounds in and around SWR. Background water samples were collected at Loveland Reservoir for VOCs, BNAs, pesticides, and metals. Surficial bed-sediment samples were collected for PAHs, organochlorine pesticides, and metals at Sweetwater and Loveland Reservoirs.

Gas-Liquid Separator design of SWRPRS in PGSFR

Energy Technology Data Exchange (ETDEWEB)

Yoon, Jung; Lee, Tae-ho [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

2015-10-15

There is the Sodium-Water Reaction Pressure Relief System (SWRPRS) in PGSFR to prevent the Sodium- Water Reaction (SWR) due to the break of the steam generator tube. The piping to atmosphere includes several components such as gasliquid separator, backpressure rupture disk, and hydrogen igniter. Among these components, gas-liquid separator separates the liquid sodium which is included in gas SWR products not to react sodium and air. In this study, the size of gas-liquid separator, which is based on the hydrogen volume which is exhausted in the sodium dump tank, is determined. To determine the gas-liquid separator for the separation of gas and sodium particle dumped the SDT, Stairmand's model which has high performance among standard cyclone separator models is selected. The body diameter is determined, and other dimensions are determined due to the ratio about the body diameter. Shepherd and Lapple's model is selected as the pressure drop calculation model considering the conservation.

78 FR 34120 - Endangered Species; Marine Mammals; Issuance of Permits

Science.gov (United States)

2013-06-06

..., 2012 October 22, 2012. 73893A A.C. Ranch 77 FR 46514; August 3, September 27, 2012. 2012. 75535A Dub...; August 3, September 27, 2012. 2012. 75592A Dub Wallace Ranch LLC..... 77 FR 46514; August 3, September 27...

Entwurf von Regelkreisen

Science.gov (United States)

Horn, Joachim

Betrachtet werde der Standardregelkreis gemäß Abb. 74.1. GS(s) bezeichnet die Übertragungsfunktion der Strecke, die bekannt sei. GR(s) bezeichnet die Übertragungsfunktion des Regelgliedes, dessen Struktur und Parameter so zu bestimmen sind, dass der geschlossene Regelkreis die gewünschten Eigenschaften besitzt. Zunächst sollen diese Forderungen an die Regelung dargestellt und die zu ihrer Erfüllung erforderlichen Bedingungen hergeleitet werden.

Tax Shield, Insolvenz und Zinsschranke

OpenAIRE

Arnold, Sven; Lahmann, Alexander; Schwetzler, Bernhard

2010-01-01

Dieser Beitrag analysiert den Wertbeitrag fremdfinanzierungsbedingter Steuervorteile (Tax Shield) unter realistischen Bedingungen (keine Negativsteuer; mögliche Insolvenz) für unterschiedliche Finanzierungspolitiken. Zusätzlich wird der Effekt der sogenannten Zinsschranke auf den Wert des Tax Shield ermittelt. Die Bewertung des Tax Shield mit und ohne Zinsschranke findet im einperiodigen Fall auf der Basis von Optionspreismodellen und im mehrperiodigen Fall auf der Basis von Monte Carlo Simul...

Einfluss von Thujonen und Omeprazol auf die Aktivität der glatten Muskelzelle im Ileum der Ratte

OpenAIRE

Huhnstock, Stefan

2010-01-01

Untersucht wurde der Einfluss von Thujonen (α Thujon, αβThujon, natürliches Mischthujon) und Omeprazol auf die Ruheaktivität, den Basaltonus, die pharmakologisch vorstimulierte glatte Muskulatur ,sowie die elektrisch induzierte Kontraktionen und die elektrisch induzierte Relaxation unter nicht-adrenergen nicht-cholinergen Bedingungen an der glatten Muskelzelle im Ileum von Ratten. Auf die Ruheaktivität und den Basaltonus hatten die Substanzen keinen Einfluss. Thujone hatten einen signifikante...

Possible antigravity regions in F(R) theory?

Energy Technology Data Exchange (ETDEWEB)

Bamba, Kazuharu, E-mail: bamba@kmi.nagoya-u.ac.jp [Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Nojiri, Shin' ichi, E-mail: nojiri@phys.nagoya-u.ac.jp [Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Department of Physics, Nagoya University, Nagoya 464-8602 (Japan); Odintsov, Sergei D., E-mail: odintsov@ieec.uab.es [Department of Physics, Nagoya University, Nagoya 464-8602 (Japan); Instituciò Catalana de Recerca i Estudis Avançats (ICREA), Barcelona (Spain); Institut de Ciencies de l' Espai (CSIC-IEEC), Campus UAB, Facultat de Ciencies, Torre C5-Par-2a pl, E-08193 Bellaterra (Barcelona) (Spain); Tomsk State Pedagogical University, Kievskaya Avenue, 60, 634061, Tomsk (Russian Federation); Sáez-Gómez, Diego, E-mail: diego.saezgomez@uct.ac.za [Astrophysics, Cosmology and Gravity Centre (ACGC) and Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch 7701, Cape Town (South Africa); Fisika Teorikoaren eta Zientziaren Historia Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 Posta Kutxatila, 48080 Bilbao (Spain)

2014-03-07

We construct an F(R) gravity theory corresponding to the Weyl invariant two scalar field theory. We investigate whether such F(R) gravity can have the antigravity regions where the Weyl curvature invariant does not diverge at the Big Bang and Big Crunch singularities. It is revealed that the divergence cannot be evaded completely but can be much milder than that in the original Weyl invariant two scalar field theory.

Holographic dark energy and f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Aghamohammadi, A [Faculty of Science, Islamic Azad University of Sanandaj, Sanandaj (Iran, Islamic Republic of); Saaidi, Kh, E-mail: ksaaidi@uok.ac.ir, E-mail: agha35484@yahoo.com [Department of Physics, Faculty of Science, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

2011-02-15

We investigate the corresponding relation between f(R) gravity and holographic dark energy. We introduce a type of energy density from f(R) that has the same role as holographic dark energy. We obtain the differential equation that specifies the evolution of the introduced energy density parameter based on a varying gravitational constant. We discover the relation for the equation of state parameter for low redshifts that contains varying G correction.

Possible antigravity regions in F(R) theory?

Science.gov (United States)

Bamba, Kazuharu; Nojiri, Shin'ichi; Odintsov, Sergei D.; Sáez-Gómez, Diego

2014-03-01

We construct an F(R) gravity theory corresponding to the Weyl invariant two scalar field theory. We investigate whether such F(R) gravity can have the antigravity regions where the Weyl curvature invariant does not diverge at the Big Bang and Big Crunch singularities. It is revealed that the divergence cannot be evaded completely but can be much milder than that in the original Weyl invariant two scalar field theory.

Possible antigravity regions in F(R) theory?

International Nuclear Information System (INIS)

Bamba, Kazuharu; Nojiri, Shin'ichi; Odintsov, Sergei D.; Sáez-Gómez, Diego

2014-01-01

We construct an F(R) gravity theory corresponding to the Weyl invariant two scalar field theory. We investigate whether such F(R) gravity can have the antigravity regions where the Weyl curvature invariant does not diverge at the Big Bang and Big Crunch singularities. It is revealed that the divergence cannot be evaded completely but can be much milder than that in the original Weyl invariant two scalar field theory.

78 FR 48932 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2013-08-12

... make corresponding revisions to the Consolidated Financial Statements for Holding Companies (FR Y-9C... Parent Company Only Financial Statements for Holding Companies (FR Y-9SP). DATES: Comments must be... the Federal Financial Institutions Examination Council (FFIEC), have approved the publication for...

Experimental study and phenomenological modeling of the hydrolysis of tritiated sodium: influence of experimental conditions on the tritium distribution in the effluents

International Nuclear Information System (INIS)

Chassery, Aurelien

2014-01-01

Within the framework of the decommissioning of fast reactors, several processes are under investigation regarding sodium disposal. One of them rests on the implementation of the sodium-water reaction (SWR), in a controlled and progressive way, to remove residual sodium containing impurities such as sodium hydrides, sodium oxides and tritiated sodium hydrides. Such a hydrolysis releases some amount of energy and produces a liquid effluent, composed of a solution of soda, and a gaseous effluent, composed of hydrogen, steam and an inert gas. The tritium, originally into the sodium as a soluble (T - ) or precipitate form (NaT), will be distributed between the liquid and gaseous effluent, and according to two chemical forms, the tritium hydride HT and the tritiated water HTO. HTO being 10,000 times more radio-toxic than HT, a precise knowledge of the mechanisms governing the distribution of tritium is necessary in order to estimate the exhaust gas releases and design the process needed to treat the off-gas before its release into the environment. An experimental study has been carried out in order to determine precisely the phenomena involved in the hydrolysis. The influence of the experimental conditions on the tritium distribution has been tested. The results of this study leaded to a phenomenological description of the tritiated sodium hydrolysis that will help to predict the composition of the effluents, regarding tritium. (author) [fr

Cosmological reconstruction of realistic modified F(R) gravities

International Nuclear Information System (INIS)

Nojiri, Shin'ichi; Odintsov, Sergei D.; Saez-Gomez, Diego

2009-01-01

The cosmological reconstruction scheme for modified F(R) gravity is developed in terms of e-folding (or, redshift). It is demonstrated how any FRW cosmology may emerge from specific F(R) theory. The specific examples of well-known cosmological evolution are reconstructed, including ΛCDM cosmology, deceleration with transition to phantom superacceleration era which may develop singularity or be transient. The application of this scheme to viable F(R) gravities unifying inflation with dark energy era is proposed. The additional reconstruction of such models leads to non-leading gravitational correction mainly relevant at the early/late universe and helping to pass the cosmological bounds (if necessary). It is also shown how cosmological reconstruction scheme may be generalized in the presence of scalar field.

77 FR 24762 - Mitsubishi Motors North America, Inc., Grant of Petition for Decision of Inconsequential...

Science.gov (United States)

2012-04-25

... instruction standards. Refer to Hyundai Motor Company (74 FR 9125, March 2, 209); Ford Motor Company (73 FR 11462, March 3, 2008); Mazda North America Operations (73 FR 11464, March 3, 2008); Ford Motor Company...-0176; Notice 2] Mitsubishi Motors North America, Inc., Grant of Petition for Decision of...

Bello et al (9)

African Journals Online (AJOL)

Timade VENTURE

family Solanaceae and it is one of the largest and ... al.,2004). The taxonomy of this important genus is of ... importance of numerical taxonomic method in ..... SME. SAE. SAM. SNI. SER. SWR. SMA. SGI. -6.4. -4.8. -3.2. -1.6. 0. 1.6. 3.2. 4.8.

Computing the Fréchet distance between folded polygons

NARCIS (Netherlands)

Cook IV, A.F.; Driemel, A.; Sherette, J.; Wenk, C.

2015-01-01

Computing the Fréchet distance for surfaces is a surprisingly hard problem and the only known polynomial-time algorithm is limited to computing it between flat surfaces. We study the problem of computing the Fréchet distance for a class of non-flat surfaces called folded polygons. We present a

78 FR 71565 - Secretarial Infrastructure Business Development Mission to Mexico

Science.gov (United States)

2013-11-29

... DEPARTMENT OF COMMERCE Office of Business Liaison Secretarial Infrastructure Business Development... amending the Notice published at 78 FR 48855, August 12, 2013, regarding the Secretarial Infrastructure..., Trade Program Assistant. [FR Doc. 2013-28579 Filed 11-27-13; 8:45 am] BILLING CODE 3510-FP-P ...

75 FR 63181 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2010-10-14

... recordkeeping requirement for brokers and dealers to document the purpose of their loans secured by margin stock.... The purpose statements, FR U-1 and FR G-3, are recordkeeping requirements for brokers and dealers... FEDERAL RESERVE SYSTEM Proposed Agency Information Collection Activities; Comment Request AGENCY...

Evaluation methodology and prospective introduction scenarios of FR cycle systems

International Nuclear Information System (INIS)

Fujii, Sumio; Katoh, Atsushi; Sato, Kazujiro

2003-01-01

The 21st century society will be facing growing demand of energy, global environmental issues and concerns about fossil fuel exhaustion. In this society, it is essential to seek for a sustainable energy system to solve these energy-related concerns. In order to find ways for solving these problems, 'Feasibility Study on Commercialized FR Cycle System' was launched in 1999 as a joint research project of JNC, electric utilities, JAERI, CRIEPI etc. This project aims to build promising FR cycle technologies for the 21st century. Now, we are in the second phase (JFY 2001-2005) of this project. At the end of the second phase, we will propose promising concepts through applying innovative technologies. We started this Feasibility Study with defining the development target, which ended in five items; safety, economy, environmental burden, resource utilization and nuclear non-proliferation. These items should also serve as basic viewpoints to evaluate achievements of the study. This paper describes how we evaluate FR cycle options to come up with the final promising candidates. This paper also describes a prospective scenario to introduce FR cycle system, which shows how the FR cycle will be replacing existing LWRs by using limited natural uranium resource and spent fuels. (author)

Numerical approach for quantification of self wastage phenomena in sodium-cooled fast reactor

International Nuclear Information System (INIS)

Jang, Sung Hyun; Takata, Takashi; Yamaguchi, Akira; Uchbori, Akihiro; Kurihara, Akikazu; Ohshima, Hiroyuki

2015-01-01

Sodium-cooled fast breeder reactors use liquid sodium as a moderator and coolant to transfer heat from the reactor core. The main hazard associated with sodium is its rapid reaction with water. Sodium-water reaction (SWR) takes place when water or vapor leak into the sodium side through a crack on a heat-transfer tube in a steam generator. If the SWR continues for some time, the SWR will damage the surface of the defective area, causing it to enlarge. This self-enlargement of the crack is called 'self-wastage phenomena'. A stepwise numerical evaluation model of the self-wastage phenomena was devised using a computational code of multicomponent multiphase flow involving a sodium-water chemical reaction: sodium-water reaction analysis physics of interdisciplinary multiphase flow (SERAPHIM). The temperature of gas mixture and the concentration of NaOH at the surface of the tube wall are obtained by a numerical calculation using SERAPHIM. Averaged thermophysical properties are used to assess the local wastage depth at the tube surface. By reflecting the wastage depth to the computational grid, the self-wastage phenomena are evaluated. A two-dimensional benchmark analysis of an SWAT (Sodium-Water reAction Test rig) experiment is carried out to evaluate the feasibility of the numerical model. Numerical results show that the geometry and scale of enlarged cracks show good agreement with the experimental result. Enlarged cracks appear to taper inward to a significantly smaller opening on the inside of the tube wall. The enlarged outer diameter of the crack is 4.72 mm, which shows good agreement with the experimental data (4.96 mm)

Numerical approach for quantification of self wastage phenomena in sodium-cooled fast reactor

Energy Technology Data Exchange (ETDEWEB)

Jang, Sung Hyun; Takata, Takashi [Graduate School of Engineering, Osaka University, Osaka (Japan); Yamaguchi, Akira [Graduate School of Engineering, The University of Tokyo, Ibaraki (Japan); Uchbori, Akihiro; Kurihara, Akikazu; Ohshima, Hiroyuki [Japan Atomic Energy Agency, Ibaraki (Japan)

2015-10-15

Sodium-cooled fast breeder reactors use liquid sodium as a moderator and coolant to transfer heat from the reactor core. The main hazard associated with sodium is its rapid reaction with water. Sodium-water reaction (SWR) takes place when water or vapor leak into the sodium side through a crack on a heat-transfer tube in a steam generator. If the SWR continues for some time, the SWR will damage the surface of the defective area, causing it to enlarge. This self-enlargement of the crack is called 'self-wastage phenomena'. A stepwise numerical evaluation model of the self-wastage phenomena was devised using a computational code of multicomponent multiphase flow involving a sodium-water chemical reaction: sodium-water reaction analysis physics of interdisciplinary multiphase flow (SERAPHIM). The temperature of gas mixture and the concentration of NaOH at the surface of the tube wall are obtained by a numerical calculation using SERAPHIM. Averaged thermophysical properties are used to assess the local wastage depth at the tube surface. By reflecting the wastage depth to the computational grid, the self-wastage phenomena are evaluated. A two-dimensional benchmark analysis of an SWAT (Sodium-Water reAction Test rig) experiment is carried out to evaluate the feasibility of the numerical model. Numerical results show that the geometry and scale of enlarged cracks show good agreement with the experimental result. Enlarged cracks appear to taper inward to a significantly smaller opening on the inside of the tube wall. The enlarged outer diameter of the crack is 4.72 mm, which shows good agreement with the experimental data (4.96 mm)

75 FR 58305 - Approval and Promulgation of Air Quality Implementation Plans; Indiana; Revised Format for...

Science.gov (United States)

2010-09-24

... monoxide, Hydrocarbons, Incorporation by reference, Intergovernmental relations, Lead, Nitrogen dioxide... 60735 Sec. 6. 7/31/2009 11/20/2009, 74 FR 60197 Sec. 3. 1-2 Definitions 9/26/1980 11/5/1981, 46 FR 54943.../2009, 74 FR 52891.... Paragraph (c). and Marion Cos. 2009 Chicago Hydrocarbon Control Strategy..... 8...

General proof of the entropy principle for self-gravitating fluid in f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Fang, Xiongjun [Department of Physics and Key Laboratory of Low Dimensional Quantum Structures andQuantum Control of Ministry of Education, Hunan Normal University,Changsha, Hunan 410081 (China); Guo, Minyong [Department of Physics, Beijing Normal University,Beijing 100875 (China); Jing, Jiliang [Department of Physics and Key Laboratory of Low Dimensional Quantum Structures andQuantum Control of Ministry of Education, Hunan Normal University,Changsha, Hunan 410081 (China)

2016-08-29

The discussions on the connection between gravity and thermodynamics attract much attention recently. We consider a static self-gravitating perfect fluid system in f(R) gravity, which is an important theory could explain the accelerated expansion of the universe. We first show that the Tolman-Oppenheimer-Volkoff equation of f(R) theories can be obtained by thermodynamical method in spherical symmetric spacetime. Then we prove that the maximum entropy principle is also valid for f(R) gravity in general static spacetimes beyond spherical symmetry. The result shows that if the constraint equation is satisfied and the temperature of fluid obeys Tolmans law, the extrema of total entropy implies other components of gravitational equations. Conversely, if f(R) gravitational equation hold, the total entropy of the fluid should be extremum. Our work suggests a general and solid connection between f(R) gravity and thermodynamics.

75 FR 6151 - Chartering and Field of Membership for Federal Credit Unions

Science.gov (United States)

2010-02-08

... the terms ``rural district'' and ``in danger of insolvency'' for emergency merger purposes. 74 FR... the term ``in danger of insolvency'' for emergency merger purposes. 74 FR 68722 (December 29, 2009...

Robust approach to f(R) gravity

International Nuclear Information System (INIS)

Jaime, Luisa G.; Patino, Leonardo; Salgado, Marcelo

2011-01-01

We consider metric f(R) theories of gravity without mapping them to their scalar-tensor counterpart, but using the Ricci scalar itself as an ''extra'' degree of freedom. This approach avoids then the introduction of a scalar-field potential that might be ill defined (not single valued). In order to explicitly show the usefulness of this method, we focus on static and spherically symmetric spacetimes and deal with the recent controversy about the existence of extended relativistic objects in certain class of f(R) models.

77 FR 35021 - Kwan Bo Jin, M.D.; Decision and Order

Science.gov (United States)

2012-06-12

...] DEA registration is not appropriate.'' Anibal P. Herrera, M.D., 61 FR 65,075, 65,078 (DEA 1996); see... ``there were serious questions as to the integrity of the registrant.'' Anibal P. Herrera, M.D., 61 FR 65...

Galaxy-galaxy weak gravitational lensing in f(R) gravity

Science.gov (United States)

Li, Baojiu; Shirasaki, Masato

2018-03-01

We present an analysis of galaxy-galaxy weak gravitational lensing (GGL) in chameleon f(R) gravity - a leading candidate of non-standard gravity models. For the analysis, we have created mock galaxy catalogues based on dark matter haloes from two sets of numerical simulations, using a halo occupation distribution (HOD) prescription which allows a redshift dependence of galaxy number density. To make a fairer comparison between the f(R) and Λ cold dark matter (ΛCDM) models, their HOD parameters are tuned so that the galaxy two-point correlation functions in real space (and therefore the projected two-point correlation functions) match. While the f(R) model predicts an enhancement of the convergence power spectrum by up to ˜ 30 per cent compared to the standard ΛCDM model with the same parameters, the maximum enhancement of GGL is only half as large and less than 5 per cent on separations above ˜1-2 h-1 Mpc, because the latter is a cross-correlation of shear (or matter, which is more strongly affected by modified gravity) and galaxy (which is weakly affected given the good match between galaxy autocorrelations in the two models) fields. We also study the possibility of reconstructing the matter power spectrum by combination of GGL and galaxy clustering in f(R) gravity. We find that the galaxy-matter cross-correlation coefficient remains at unity down to ˜2-3 h-1 Mpc at relevant redshifts even in f(R) gravity, indicating joint analysis of GGL and galaxy clustering can be a powerful probe of matter density fluctuations in chameleon gravity. The scale dependence of the model differences in their predictions of GGL can potentially allows us to break the degeneracy between f(R) gravity and other cosmological parameters such as Ωm and σ8.

77 FR 67816 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2012-11-14

... complements the triennial Survey of Foreign Exchange and Derivatives Market Activity (FR 3036; OMB No. 7100... Derivative Market Activity. Agency form number: FR 3036. OMB control number: 7100-0285. Frequency: One-time... derivatives market and dealers. Estimated annual reporting hours: Turnover Survey, 2,275 hours; Outstandings...

Gas hydrate formation in deep-sea sediments - on the role of sediment-mechanical process determination; Gashydratbildung in Tiefseesedimenten - zur Rolle der sedimentmechanischen Prozesssteuerung

Energy Technology Data Exchange (ETDEWEB)

Feeser, V. [Kiel Univ. (Germany). Geologisch-Palaeontologisches Inst.

1997-12-31

Slope failures in gas hydrate regions are encountered throughout the oceans. The stability of seafloor slopes can be assessed and predicted by means of calculation methods based on mechanical laws and parameters which describe the deformation behaviour and/or mechanical strength of the slope-forming sediments. Thermodynamic conditions conducive to the formation of gas hydrates in marine sediments differ from conditions prevailing in exclusively water-filled systems. The present contribution describes the relevant energetic conditions on the basis of a simple spherical model giving due consideration to petrographic parameters. Depending on pore size distribution, lithological stress conditions, pore water pressure, and sediment strength gas hydrates will either develop as a cementing phase or as segregated lenses. (MSK) [Deutsch] In den Weltmeeren ereignen sich immer wieder Hangrutschungen in Gashydratgebieten. Die zur Beurteilung und Prognonse von Hangstabilitaeten zu verwendenden Berechnungsverfahren erfordern Stoffgesetze und Parameter, welche das Deformations-und/oder Festigkeitsverhalten der hangbildenden Sedimente beschreiben. Die thermodynamischen Bildungsbedingungen von Gashydraten in marinen Sedimenten unterscheiden sich von den Bedingungen in ausschliesslich wassergefuellten Systemen. Unter Einbeziehung petrographischer Eigenschaften werden die energetischen Bedingungen beschrieben. Dazu dient ein einfaches Kugelmodell. Je nach vorhandenem Porenraumspektrum, lithostatischen Spannungsverhaeltnissen, Porenwasserdruck und Sedimentfestigkeit wachsen Gashydrate als Porenraumzement oder als segregierte Linsen.

The holographic bound in the scalar-tensor and f(R) gravities

International Nuclear Information System (INIS)

Firouzjaee, J.T.

2013-01-01

The holographic bound has been extended to the different theory of gravities such as scalar-tensor gravity and f(R) gravity according to the Noether charge definition of the entropy for a black hole surface. We have introduced some popular examples of the flat FRW cosmology in order to investigate holographic bound in scalar-tensor and f(R) gravity. Using the holographic bound, we put an additional constraint on scalar-tensor gravity and the f(R) gravity parameters. We also discuss the transformation from Jordan frame to Einstein frame. (orig.)

Late-time cosmological approach in mimetic f(R, T) gravity

Energy Technology Data Exchange (ETDEWEB)

Baffou, E.H. [Institut de Mathematiques et de Sciences Physiques (IMSP), Porto-Novo (Benin); Houndjo, M.J.S. [Institut de Mathematiques et de Sciences Physiques (IMSP), Porto-Novo (Benin); Faculte des Sciences et Techniques de Natitingou, Natitingou (Benin); Hamani-Daouda, M. [Universite de Niamey, Departement de Physique, Niamey (Niger); Alvarenga, F.G. [Universidade Federal do Espirito Santo, Departamento de Engenharia e Ciencias Naturais, CEUNES, Sao Mateus, ES (Brazil)

2017-10-15

In this paper, we investigate the late-time cosmic acceleration in mimetic f(R, T) gravity with the Lagrange multiplier and potential in a Universe containing, besides radiation and dark energy, a self-interacting (collisional) matter. We obtain through the modified Friedmann equations the main equation that can describe the cosmological evolution. Then, with several models from Q(z) and the well-known particular model f(R, T), we perform an analysis of the late-time evolution. We examine the behavior of the Hubble parameter, the dark energy equation of state and the total effective equation of state and in each case we compare the resulting picture with the non-collisional matter (assumed as dust) and also with the collisional matter in mimetic f(R, T) gravity. The results obtained are in good agreement with the observational data and show that in the presence of the collisional matter the dark energy oscillations in mimetic f(R, T) gravity can be damped. (orig.)

Ramadan Fasting Effects on Postural Control in the Elderly: A Comparison Between Fallers and Non-fallers.

Science.gov (United States)

Laatar, Rabeb; Baccouch, Rym; Borji, Rihab; Kachouri, Hiba; Rebai, Haithem; Sahli, Sonia

2016-11-01

Our purpose was to compare the effects of Ramadan fasting on postural control in elderly fallers and non-fallers. The protocol involved twenty-four healthy old volunteer males divided into two groups: fallers (mean age = 75.43 ± 5.26 years, weight = 67.25 ± 5.30 kg and height = 1.65 ± 0.02 m) and non-fallers (mean age = 72.3 ± 6.42 years, weight = 65.5 ± 6.15 kg and height = 1.64 ± 0.03 m). Participants performed a simple reaction time test (SRT) and a postural control protocol on four different occasions: one week before Ramadan (BR), during the second (SWR) and the fourth week (FWR) of Ramadan and three weeks after Ramadan (AR). Center of pressure (CoP) parameters [the CoP medial-lateral length (CoP X ), and the CoP antero-posterior length (CoP Y )] were assessed using a force platform under two surface conditions: Firm surface and Foam surface. The results showed that Ramadan fasting influences similarly fallers and non-fallers. In fact, for both groups, the CoP X and the CoP Y values increased significantly during the SWR and the FWR compared to BR. These CoP parameters decreased significantly in the Firm surface conditions in the FWR. Moreover, the CoP parameters were significantly higher during the FWR and AR in comparison with BR in the Foam surface conditions. However, the amplitude of increase of the CoP [X] % and the CoP [Y] % (ΔCoP [X] % and ΔCoP [Y] %) between BR and the SWR was significantly higher in the fallers than non-fallers. The SRT of elderly fallers and non-fallers was significantly higher in the SWR and in the FWR compared to BR. In conclusion, Ramadan fasting alters similarly postural control of elderly fallers and non-fallers, but the amplitude (ΔCoP [X] % and ΔCoP [Y] %) of this alteration seems to be more pronounced in fallers than non-fallers. A probable beginning of adaptation occurs at the FWR. However, three weeks seems to be insufficient to recover postural control alterations due to Ramadan

76 FR 65653 - New Source Performance Standards (NSPS) Review

Science.gov (United States)

2011-10-24

... current within their review cycle, there are also multiple standards in different phases of the review... Rock Plants NN 04/16/1982 (47FR16589) 10/17/2000 3 4 (65FR61760) Polymeric Coating of Supporting VVV 09... whether review of a particular NSPS is necessary during the review cycle. A listing of any NSPS for which...

78 FR 17108 - Approval and Promulgation of Implementation Plans; State of Washington; Revised Format for...

Science.gov (United States)

2013-03-20

...), EPA revised the procedures for IBR'ing Federally-approved SIPs, as a result of consultations between... Violations--Notices 9/8/93 2/22/95, 60 FR 9778 132 Criminal Penalty 11/13/94 10/24/95, 60 FR 54439 133 Civil............ Regulatory Actions & Civil 9/21/95 2/26/97, 62 FR 8624......... Penalties. 400-240......... Criminal...

"Rund um die Monti Berici" - Von Villa zu Villa : ein Fahrradtourismuskonzept für die Region Veneto

OpenAIRE

Müller, Evelyn

2002-01-01

Das Konzeptgebiet, die venezianische Ebene in der Region Veneto, bietet ideale Bedingungen für die Entwicklung von Fahrrad- und Bildungstourismus. Es ist flach und landschaftlich reizvoll. Zudem besitzt die Region ein reiches kulturelles Erbe mit vielfältiger Tradition, vornehmlich die venezianische Villa. Die Villen liegen verstreut in der Landschaft auf der ehemaligen "Terraferma". Sie haben das Gesicht der Kulturlandschaft geprägt. Sie waren die Zentralen, von wo aus enorme Meliorationsarb...

Aufbau humaner 3D-in-vitro-Testsysteme zur Risikobewertung von Nanomaterialien

OpenAIRE

Hampel, Martina

2009-01-01

Die Nanotechnologie stellt eine der Schlüsseltechnologien dieses Jahrhunderts dar Parallel zur Erschließung neuer Möglichkeiten, die die Nanotechnologie bietet, müssen jedoch auch mögliche Risiken untersucht werden. Die dabei zurzeit noch am häufigsten eingesetzte Untersuchungsmethode von Nanopartikeln ist die Verwendung zweidimensionaler in vitro Zellkulturen. Zum Einsatz kommen hier jedoch meist Zelllinien. Die Versuchsansätze entsprechen damit nicht den Bedingungen im menschlichen Körper. ...

Context effects in attitude measurement

OpenAIRE

Schwarz, Norbert

1993-01-01

Der vorliegende Beitrag entwickelt ein Modell der kognitiven Prozesse, die den Kontexteffekten bei der Einstellungsmessung zugrunde liegen. Das Modell erlaubt die folgenden Aussagen bzw. Prognosen: (1) die Bedingungen unter denen Kontexteffekte wahrscheinlich entstehen; (2) ihre Richtung (z.B. Assimilation oder Kontrast); (3) ihre Größe; (4) ihre Generalisierung über verwandte items und (5) ihre Abhängigkeit von der Art der Datenerhebung. Die Literatur der experimentellen Forschung zu diesem ...

Biological characteristics of fungi in Japanese buildings; Untersuchung biologischer Eigenschaften von Pilzen in japanischen Wohnungen

Energy Technology Data Exchange (ETDEWEB)

Tanaka, T.; Kimura, C. [Ochanomizu Univ., Tokyo (Japan); Takatori, K. [Landwirtschaftliche und Technische Univ. Tokyo (Japan)

2002-09-01

Fungi in buildings are closely connected with allergic diseases and deterioration of the building substance. They affect humans and the environment. Countermeasures require an analysis of the conditions which favour the spread of fungi. [German] Pilze in Wohnungen sind u.a. eng verbunden mit allergischen Krankheiten und der Verschlechterung der Gebaeudesubstanz. Sie schaden dem Menschen und verseuchen die Umwelt. Um Gegenmassnahmen ergreifen zu koennen, ist es wichtig, herauszufinden, unter welchen Bedingungen sich Pilze vermehren. (orig.)

Wie können Corporate Citizens voneinander lernen? : Ordonomische Anregungen für inter-organisationales Lernen im Global Compact der Vereinten Nationen

OpenAIRE

Hielscher, Stefan; Pies, Ingo; Beckmann, Markus

2009-01-01

"Der Global Compact der Vereinten Nationen versteht sich nicht als Regulierungsinitiative, sondern als freiwilliges Lern- und Dialogforum für Corporate Citizenship. Dieser Beitrag entwickelt Vorschläge, wie der Global Compact diesem Anspruch (noch besser) gerecht werden kann. Hier geht es um Strukturen in zweifacher Hinsicht: (a) Zum einen können Corporate Citizens besonders gut dann voneinander lernen, wenn sie sich über die strukturellen Bedingungen erfolgreicher - aber auch: fehlgeschlagen...

Soil wetting patterns of vegetation and inter-patches following single and repeated wildfires

Science.gov (United States)

González, Óscar; Malvar, Maruxa; van den Elsen, Erik; Hosseini, mohammadreza; Coelho, Celeste; Ritsema, Coen; Bautista, Susana; Keizer, Jan Jacob; Cerdà, Artemi

2015-04-01

Although wildfires spread in Mediterranean areas are considered a natural processes, the expected increase in fire frequency has raised concerns about the systems' future resilience (Pausas, 2004). Besides more frequent, future wildfires can become more severe and produce more pronounced changes in topsoil properties, vegetation and litter (Cerdá and Mataix-Solera, 2009). To deal with challenges, the EU funded CASCADE and RECARE projects, which are currently assessing soil threats and tipping-points for land degradation in a climatic gradient across Europe. The present research was developed in Portugal and aims to find relationships between fire frequency and soil wetting patterns following single versus repeated wildfires. In September 2012, a wildfire burnt 3000 ha. of Pine stands and shrub vegetation in the vicinity of Viseu district, North-Central Portugal. Analyses according to the available burnt-area maps (1975-2012), discriminated areas that has been burned 1x (called SD) and 4x (called D) times. In order to evaluate the post-fire soil surface moisture patterns, 6 slopes (3 in SD and 3 in D) were selected and a balanced experimental design with 72 soil moisture sensors (EC5 and GS3, from Decagon devices) was implemented under shrubs (n=18) and on bare (n=18) soil environments, at 2.5 cm and 7.5 cm soil depth each. The spatio-temporal occurrence of soil water repellence (SWR) (Keizer et al., 2008; Prats et al., 2013; Santos et al., 2014) was monthly assessed through the MED test at 2.5 cm and 7.5 cm soil depth into 5 sampling points located at regular distances along a transect running from the top to bottom of a selected slope in SD and D. Automatic and totalize rainfall gauges were also installed across the study area. Preliminary results showed that soil wetting patterns and SWR occurrence differs between SD, D sites and, between soil environment (under shrubs and on bare soil areas). SWR were more pronounced on the SD than in D, affecting soil wetting

78 FR 61348 - Environmental Management Site-Specific Advisory Board, Portsmouth

Science.gov (United States)

2013-10-03

...On September 16, 2013, in FR Doc. 2013-22453, on page 56871, the Department of Energy (DOE) published a notice of open meeting announcing a meeting on October 2, 2013 of the Environmental Management Site-Specific Advisory Board, Portsmouth (78 FR 56871). This notice announces the cancellation of this meeting.

78 FR 38976 - Proposed Agency Information Collection Activities; Comment Request

Science.gov (United States)

2013-06-28

...)). Abstract: The Federal Reserve proposes to implement the mandatory Report of Selected Money Market Rates (FR... used in the analysis of current money market conditions. The FR 2420 would collect data for three.... Excluded from Eurodollar transactions are: Demand deposits (as defined on the Schedule E of the Call Report...

77 FR 26777 - Endangered Species; Marine Mammals; Issuance of Permits

Science.gov (United States)

2012-05-07

... not operate to the disadvantage of the endangered species, and (3) The granted permit would be..., 2012. 64654A Double Springs 77 FR 6816; March 14, 2012. Partnership Ltd. February 9, 2012. 64656A Double Springs 77 FR 6816; March 14, 2012. Partnership Ltd. February 9, 2012. 64723A Larry Friesenhahn...

75 FR 47797 - Privacy Act of 1974; System of Records

Science.gov (United States)

2010-08-09

... Officer, Department of Defense. Deletion: S330.40 CAHS System name: Employee Assistance Program Records (August 27, 1999; 64 FR 46889). Reason: This collection is covered under the existing DHHS/FOH EAP Privacy notice 09-90-0010, entitled ``Employee Assistance Program (EAP) Records, HHS/OS/ASAM/OHR.'' [FR Doc. 2010...

f(R) constant-roll inflation

Energy Technology Data Exchange (ETDEWEB)

Motohashi, Hayato [Universidad de Valencia-CSIC, Instituto de Fisica Corpuscular (IFIC), Valencia (Spain); Starobinsky, Alexei A. [L.D. Landau Institute for Theoretical Physics, RAS, Moscow (Russian Federation); National Research University Higher School of Economics, Moscow (Russian Federation)

2017-08-15

The previously introduced class of two-parametric phenomenological inflationary models in general relativity in which the slow-roll assumption is replaced by the more general, constant-roll condition is generalized to the case of f(R) gravity. A simple constant-roll condition is defined in the original Jordan frame, and exact expressions for a scalaron potential in the Einstein frame, for a function f(R) (in the parametric form) and for inflationary dynamics are obtained. The region of the model parameters permitted by the latest observational constraints on the scalar spectral index and the tensor-to-scalar ratio of primordial metric perturbations generated during inflation is determined. (orig.)

76 FR 69333 - Derivatives Clearing Organization General Provisions and Core Principles

Science.gov (United States)

2011-11-08

... Management)); 75 FR 78185 (Dec. 15, 2010) (Core Principles J, K, L, and M (Information Management)); 75 FR... Parts 1, 21, 39 et al. Derivatives Clearing Organization General Provisions and Core Principles; Final... Derivatives Clearing Organization General Provisions and Core Principles AGENCY: Commodity Futures Trading...

F(R Gravity’s Rainbow and Its Einstein Counterpart

Directory of Open Access Journals (Sweden)

S. H. Hendi

2016-01-01

Full Text Available Motivated by UV completion of general relativity with a modification of a geometry at high energy scale, it is expected to have an energy dependent geometry. In this paper, we introduce charged black hole solutions with power Maxwell invariant source in the context of gravity’s rainbow. In addition, we investigate two classes of F(R gravity’s rainbow solutions. At first, we study energy dependent F(R gravity without energy-momentum tensor, and then we obtain F(R gravity’s rainbow in the presence of conformally invariant Maxwell source. We study geometrical properties of the mentioned solutions and compare their results. We also give some related comments regarding thermodynamical behavior of the obtained solutions and discuss thermal stability of the solutions.

Cosmology of Horava-Lifshitz f(R) gravity

International Nuclear Information System (INIS)

Chakrabarti, Sayan K.; Sen, Anjan A.

2011-08-01

We discuss the cosmology of recently proposed Horava-Lifshitz f(R) gravity. In particular, we derive the modified Hubble equation that reduces to the standard HL gravity case in appropriate limit. We show how the bounce solutions in this theory are modified due to nonlinear effect of f(R) gravity. In addition we find that the solutions exist when the Universe can make turn around for large scale-factor. Therefore, in principle, the Universe in this set-up can show cyclic behavior. (orig.)

Cosmology of Horava-Lifshitz f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Chakrabarti, Sayan K. [Univ. Tecnica de Lisboa (Portugal). Inst. Superior Tecnico; Dutta, Koushik [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Sen, Anjan A. [Centre of Theoretical Physics, Jamia Millia Islamia, New Dehli (India)

2011-08-15

We discuss the cosmology of recently proposed Horava-Lifshitz f(R) gravity. In particular, we derive the modified Hubble equation that reduces to the standard HL gravity case in appropriate limit. We show how the bounce solutions in this theory are modified due to nonlinear effect of f(R) gravity. In addition we find that the solutions exist when the Universe can make turn around for large scale-factor. Therefore, in principle, the Universe in this set-up can show cyclic behavior. (orig.)

75 FR 81349 - Change to the Reporting Date for Certain Data Elements Required Under the Mandatory Reporting of...

Science.gov (United States)

2010-12-27

... facilities. Ammonia Manufacturing 325311 Anhydrous and aqueous ammonia manufacturing facilities. Cement Production 327310 Portland Cement manufacturing plants. Electronics Manufacturing 334111 Microcomputers.... Ammonia Manufacturing......... G 74 FR 56260, Revised 11-24- 2010. Cement Production H 74 FR 56260, 75 FR...

Constraining f(R gravity in solar system, cosmology and binary pulsar systems

Directory of Open Access Journals (Sweden)

Tan Liu

2018-02-01

Full Text Available The f(R gravity can be cast into the form of a scalar–tensor theory, and scalar degree of freedom can be suppressed in high-density regions by the chameleon mechanism. In this article, for the general f(R gravity, using a scalar–tensor representation with the chameleon mechanism, we calculate the parametrized post-Newtonian parameters γ and β, the effective gravitational constant Geff, and the effective cosmological constant Λeff. In addition, for the general f(R gravity, we also calculate the rate of orbital period decay of the binary system due to gravitational radiation. Then we apply these results to specific f(R models (Hu–Sawicki model, Tsujikawa model and Starobinsky model and derive the constraints on the model parameters by combining the observations in solar system, cosmological scales and the binary systems.

Existence of relativistic stars in f(R) gravity

International Nuclear Information System (INIS)

Upadhye, Amol; Hu, Wayne

2009-01-01

We refute recent claims in the literature that stars with relativistically deep potentials cannot exist in f(R) gravity. Numerical examples of stable stars, including relativistic (GM * /r * ∼0.1), constant density stars, are studied. As a star is made larger, nonlinear 'chameleon' effects screen much of the star's mass, stabilizing gravity at the stellar center. Furthermore, we show that the onset of this chameleon screening is unrelated to strong gravity. At large central pressures P>ρ/3, f(R) gravity, like general relativity, does have a maximum gravitational potential, but at a slightly smaller value: GM * /r * | max =0.345<4/9 for constant density and one choice of parameters. This difference is associated with negative central curvature R under general relativity not being accessed in the f(R) model, but does not apply to any known astrophysical object.

A viable logarithmic f(R) model for inflation

Energy Technology Data Exchange (ETDEWEB)

Amin, M.; Khalil, S. [Center for Fundamental Physics, Zewail City of Science and Technology,6 October City, Giza (Egypt); Salah, M. [Center for Fundamental Physics, Zewail City of Science and Technology,6 October City, Giza (Egypt); Department of Mathematics, Faculty of Science, Cairo University,Giza (Egypt)

2016-08-18

Inflation in the framework of f(R) modified gravity is revisited. We study the conditions that f(R) should satisfy in order to lead to a viable inflationary model in the original form and in the Einstein frame. Based on these criteria we propose a new logarithmic model as a potential candidate for f(R) theories aiming to describe inflation consistent with observations from Planck satellite (2015). The model predicts scalar spectral index 0.9615

Closed string tachyon driving f(R) cosmology

Science.gov (United States)

Wang, Peng; Wu, Houwen; Yang, Haitang

2018-05-01

To study quantum effects on the bulk tachyon dynamics, we replace R with f(R) in the low-energy effective action that couples gravity, the dilaton, and the bulk closed string tachyon of bosonic closed string theory and study properties of their classical solutions. The α' corrections of the graviton-dilaton-tachyon system are implemented in the f(R). We obtain the tachyon-induced rolling solutions and show that the string metric does not need to remain fixed in some cases. In the case with H( t=‑∞ ) = , only the R and R2 terms in f(R) play a role in obtaining the rolling solutions with nontrivial metric. The singular behavior of more classical solutions are investigated and found to be modified by quantum effects. In particular, there could exist some classical solutions, in which the tachyon field rolls down from a maximum of the tachyon potential while the dilaton expectation value is always bounded from above during the rolling process.

77 FR 8002 - Unified Agenda of Federal Regulatory and Deregulatory Actions

Science.gov (United States)

2012-02-13

... include requirements for public rights-of-way. Timetable: Action Date FR Cite Notice of Intent to Form...) Accessibility Guidelines for Buildings and Facilities: Public Rights- of-Way. ARCHITECTURAL AND TRANSPORTATION... ferries, excursion boats, and other passenger vessels. Timetable: Action Date FR Cite Notice of Intent to...

Fr Luigi Giussani’s Concept of Education - an Outline

Directory of Open Access Journals (Sweden)

Alina Rynio

2011-09-01

Full Text Available This outline focuses on the multifarious academic, pedagogical and social activities of Fr Luigi Giussani, Professor of Theology, Italian thinker and scholar renowned for his numerous accomplishments. Due to his exceptional attentiveness, inquisitiveness and courage he has been certainly well-known and highly-regarded not only in university and ecclesiastical but also in the cultural and political spheres of life. The author of this study describes Fr Giussani as an exceptional scholar and educator emphasising the pedagogical aspect of his activities. The study explains his understanding of pedagogy and education. Selected achievements from his biography con fi rm Fr Giussani to be an exceptional human being, educator and scholar. As an educator, Fr Giussani holds a sober and realistic view of man and his formation: the true value of man, he claims, lies in being rational and free. Complete trust in God and great love for a human person de fi ne the most fundamental elements of his approach. The outline also includes a short biographical note and describes popular ways of education, formative events, the educators and educatee’s personality constituents, and the relationship between freedom, conscience, tradition and education.

76 FR 73604 - Privacy Act of 1974; System of Records

Science.gov (United States)

2011-11-29

... Defense. Deletion: K890.12 Identity Management (IDM) (March 18, 2010, 75 FR 13090). Reason: Due to policy... (SAAM) project (formerly known as Identity Management). [FR Doc. 2011-30698 Filed 11-28-11; 8:45 am... Docket Management System Office, 4800 Mark Center Drive, East Tower, 2nd floor, Suite 02G09, Alexandria...

Distinguishing f(R) theories from general relativity by gravitational lensing effect

Energy Technology Data Exchange (ETDEWEB)

Liu, Hongguang [Beijing Normal University, Department of Physics, Beijing (China); Aix Marseille Universite et Universite de Toulon, Centre de Physique Theorique (UMR 7332), Marseille (France); Wang, Xin; Li, Haida; Ma, Yongge [Beijing Normal University, Department of Physics, Beijing (China)

2017-11-15

The post-Newtonian formulation of a general class of f(R) theories is set up in a third-order approximation. It turns out that the information of a specific form of f(R) gravity is encoded in the Yukawa potential, which is contained in the perturbative expansion of the metric components. Although the Yukawa potential is canceled in the second-order expression of the effective refraction index of light, detailed analysis shows that the difference of the lensing effect between the f(R) gravity and general relativity does appear at the third order when √(f''(0)/f{sup '}(0)) is larger than the distance d{sub 0} to the gravitational source. However, the difference between these two kinds of theories will disappear in the axially symmetric spacetime region. Therefore only in very rare case the f(R) theories are distinguishable from general relativity by gravitational lensing effect in a third-order post-Newtonian approximation. (orig.)

Forty-Fourth Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Working Material

International Nuclear Information System (INIS)

2011-01-01

The objectives of the meeting were to: - Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); - Review the progress since the 43rd TWG-FR Annual Meeting, including the status of the actions; - Consider topical technical meeting arrangements for 2012-2013, as well as review FR-related activities included in the IAEA Project&Budget (P&B) biennium 2012-2013; - Review the IAEA’s ongoing information exchange and coordinated research projects in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives (GIF, INPRO, NEA, ESNII, etc.)

Promising fast reactor systems in the feasibility study on commercialized FR cycle system

International Nuclear Information System (INIS)

Sakamoto, Y.; Kotake, S.; Enuma, Y.; Sagayama, Y.; Nishikawa, A.; Ando, M.

2005-01-01

The Feasibility Study on Commercialized Fast Reactor (FR) Cycle Systems is under way in order to propose prominent FR cycle systems that will respond to the diverse needs of society in the future. The design studies on various FR system concepts have been achieved and then the evaluations of potential to achieve the development targets have been carried out. Crucial issues have been found out for each FR system concept and their development plans for the key technologies are summarized as the roadmap. The characteristics and the differences in performances have been investigated. The crucial issues and the development periods have been clarified. Further investigation is now in progress. The promising concept will be proposed based on result of comparative evaluation at the end of the Phase II study. (authors)

Research of the cost-benefit analysis for FR cycle research and development. The annual report of the FY 2001

International Nuclear Information System (INIS)

Shiotani, Hiroki; Shinoda, Yoshihiko; Hirao, Kazunori

2002-07-01

This report is intended to explain the outline of the research and development (R and D) in the FY 2001 on cost-benefit analysis of FR (Fast Reactor) cycle system concepts. The work was conducted as a part of the JNC's Feasibility Study on Commercialized Fast Reactor Cycle Systems (the F/S)'. In the FY 2001, the work conducted in the JNC was summed up as the followings: Conceptual study on cost-benefit analysis for FR cycle R and D. Refinement on the evaluation procedure and improvement over operation efficiency. Cost-benefit analysis of the reference FR cycle and sensitivity analysis with the revised system. Cost-benefit analyses of R and Ds for various FR cycle candidate concepts including FR cycle concepts studied in the F/S phase 1. The work made it possible to evaluate the cost effectiveness of various FR cycle systems efficiently. The cost-benefit analysis, which is often used for the policy evaluation, is considered to be applicable to FR cycle system concepts in the F/S. (author)

Pyritoxidationsprozesse im cretazischen Emschermergel infolge von aeroben Bedingungen durch den Emscherumbau

Science.gov (United States)

Droste, Björn; Wisotzky, Frank

2015-09-01

Due to the restoration of the Emscher river system, large amounts of the Emschermergel, a Cretaceous sediment containing significant amounts of carbonate and pyrite, will be released from its anoxic state. The oxidation of pyrite results in the release of protons, iron and sulfate. In order to evaluate the impact of the reaction products, extensive laboratory investigations were carried out. The methodology can detect pyrite content in the range of magnitude of the Rhenish lignite mining area (average 0.21 wt.% Pyritic-S). The formation of a naturally-occurring weathering horizon could also be detected. Under laboratory conditions, further oxidation of the weathered laboratory samples could be observed. Column experiments show significant release of sulfate at high concentrations. Hydrochemical modelling and acid-base accounting show neutralization of the free protons by the effective carbonate buffer in the sediment.

A no-hair theorem for black holes in f(R) gravity

Science.gov (United States)

Cañate, Pedro

2018-01-01

In this work we present a no-hair theorem which discards the existence of four-dimensional asymptotically flat, static and spherically symmetric or stationary axisymmetric, non-trivial black holes in the frame of f(R) gravity under metric formalism. Here we show that our no-hair theorem also can discard asymptotic de Sitter stationary and axisymmetric non-trivial black holes. The novelty is that this no-hair theorem is built without resorting to known mapping between f(R) gravity and scalar–tensor theory. Thus, an advantage will be that our no-hair theorem applies as well to metric f(R) models that cannot be mapped to scalar–tensor theory.

Survey and evaluation of inherent safety characteristics and passive safety systems for use in probabilistic safety analyses

International Nuclear Information System (INIS)

Wetzel, N.; Scharfe, A.

1998-01-01

The present report examines the possibilities and limits of a probabilistic safety analysis to evaluate passive safety systems and inherent safety characteristics. The inherent safety characteristics are based on physical principles, that together with the safety system lead to no damage. A probabilistic evaluation of the inherent safety characteristic is not made. An inventory of passive safety systems of accomplished nuclear power plant types in the Federal Republic of Germany was drawn up. The evaluation of the passive safety system in the analysis of the accomplished nuclear power plant types was examined. The analysis showed that the passive manner of working was always assumed to be successful. A probabilistic evaluation was not performed. The unavailability of the passive safety system was determined by the failure of active components which are necessary in order to activate the passive safety system. To evaluate the passive safety features in new concepts of nuclear power plants the AP600 from Westinghouse, the SBWR from General Electric and the SWR 600 from Siemens, were selected. Under these three reactor concepts, the SWR 600 is specially attractive because the safety features need no energy sources and instrumentation in this concept. First approaches for the assessment of the reliability of passively operating systems are summarized. Generally it can be established that the core melt frequency for the passive concepts AP600 and SBWR is advantageous in comparison to the probabilistic objectives from the European Pressurized Water Reactor (EPR). Under the passive concepts is the SWR 600 particularly interesting. In this concept the passive systems need no energy sources and instrumentation, and has active operational systems and active safety equipment. Siemens argues that with this concept the frequency of a core melt will be two orders of magnitude lower than for the conventional reactors. (orig.) [de

Can Chlorella pyrenoidosa be a bioindicator for hazardous solid waste detoxification?

Energy Technology Data Exchange (ETDEWEB)

Hu, Li-Fang, E-mail: hulif127@163.com [College of Quality and Safety Engineering, China Jiliang University, Hangzhou 310018 (China); Long, Yu-Yang; Shen, Dong-Sheng [School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012 (China); Jiang, Chen-Jing [The Second Institute of Oceanography, SOA, Hangzhou 310012 (China)

2012-02-01

Four kinds of solid waste residue (SWR, S1 to S4) from different stages in a sequential detoxification process were chosen. The biotoxicity of the leachates from S1 to S4 was tested by Chlorella pyrenoidosa. The growth inhibition, the chlorophyll a (chla) and chlorophyll b (chlb) concentrations, and the ultrastructural morphology of cells of C. pyrenoidosa were studied. It shows that the growth inhibition of C. pyrenoidosa significantly increased with increasing leachate concentration when exposed to the leachates from S1, S2, S3, and S4, respectively. It well reflects the toxicity difference of leachate from SWR at different treatment stages, namely S1 > S2 > S3 > S4. Correspondingly, the chla and chlb concentrations of C. pyrenoidosa increased gradually as SWR was treated deeply. Leachate disrupted chlorophyll synthesis and inhibited cell growth. The changing of the ultrastructural morphology of cells under different leachate exposures, such as volume of chloroplasts and quantity of thylakoids reducing, confirmed the toxicity decrease of leachates from different stages. C. pyrenoidosa is a good bioindicator for hazardous solid waste detoxification. The EC{sub 50} at difference scenarios also suggests that it was feasible to estimate ecological toxicity of leachates to C. pyrenoidosa after exposure times of 72 h. C. pyrenoidosa can be introduced to evaluate the effect of hazardous solid waste disposal by biotoxicity assessment. - Highlights: Black-Right-Pointing-Pointer The detoxification process of hazardous solid waste was evaluated by Chlorella pyrenoidosa. Black-Right-Pointing-Pointer The best exposure time of ecological toxicity assessment of Chlorella pyrenoidosa was presented. Black-Right-Pointing-Pointer The possible toxicity of the hazardous solid waste at different disposal stage on Chlorella pyrenoidosa was explored from cell tissue.

78 FR 27153 - Duty Periods for Establishing Eligibility for Health Care

Science.gov (United States)

2013-05-09

.... Quartermaster Corps Female Recognized 46 FR 11857. Clerical Employees serving with effective January the.... civilian female employees Recognized 59 FR 298. of the U.S. Army Nurse Corps effective while serving in the.... civilian female employees of the U.S. Army Nurse Corps while serving in the Defense of Bataan and...

77 FR 68149 - Karen Paul Holley, M.D.; Decision and Order

Science.gov (United States)

2012-11-15

... DEPARTMENT OF JUSTICE Drug Enforcement Administration [Docket No. 12-51] Karen Paul Holley, M.D... revoke the DEA Certificate of Registration (COR), Number BH8988339, of Karen Paul Holley, M.D....D., 74 FR 17528, 174529 (2009); John B. Freitas, D.O., 74 FR 17524, 17525 (2009); Roger A. Rodriguez...

Forty-Fifth Annual Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Working Material

International Nuclear Information System (INIS)

2012-01-01

The objectives of the meeting were to: • Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); • Review the progress since the 44 th TWG-FR Annual Meeting, including the status of the actions; • Consider topical technical meeting arrangements for 2012-2013, as well as review FR-related activities included in the IAEA Programme & Budget (P&B) biennium 2012-2013; • Review the IAEA’s concluded, on-going and planned coordinated research projects in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives (GIF, INPRO, NEA, ESNII, etc.). The 45th Meeting of the TWG-FR reached the following conclusions/recommendations: • The participants expressed satisfaction and appreciation for the large amount of new information on on-going activities carried out by the Member States in the field of FR and ADS exchanged during the meeting; • Also the organizations which have participated to the TWG-FR meeting for the first time expressed their appreciation for the lively discussion and the results and thanked the IAEA for inviting them at the meeting; • The meeting was very useful in particular for collecting inputs and advice in view of the preparation of the IAEA Programme & Budget 2014-2015 (and then 2016-2017) in the area of FR and ADS technology development; • The TWG-FR remains an unique international forum for information exchange in the field of fast neutron systems and for promoting RT&D activities in this area; • Due to the increasing interest in FR and in view of the forthcoming realizations, it would be advisable to increase the involvement of industries, regulators and other R&D organizations; • The annual TWG-FR meeting should focused on exchange of information on national and international programmes, avoiding duplications or overlapping’s with other IAEA initiatives in the field; �

Validation and Verification (V and V) Testing on Midscale Flame Resistant (FR) Test Method

Science.gov (United States)

2016-12-16

materials . The results demonstrated that the Midscale test is a quick and cost-effective method for evaluation of FR performance of design features...standard and novel FR materials and design configurations during fire engulfment. Details of the test method and its development can be found in the...employed in the FRACU is a ripstop fabric blend of 65% FR rayon, 25% para- aramid and 10% nylon. The iCVC material is Nylon/Cotton/Nomex. All three

Psychosocial Stress and Addison's Disease

OpenAIRE

Wolf, Jutta Manuela

2006-01-01

Die Psychoneuroimmunologie beschäftigt sich unter anderem mit der Frage, ob und unter welchen Bedingungen psychosozialer Stress krank macht. Humanstudien, die dieser Frage nachgehen, können dabei meist nur korrelative Zusammenhänge aufdecken. Um trotzdem Aussagen zu Mechanismen, Ursache-Wirkungsbeziehungen und klinische Relevanz treffen zu können, muss z.B. auf Befunde aus der Tierforschung oder aus in vitro-Studien zurückgegriffen werden. Ziel der vorliegenden Arbeit war es, eine Methode zu ...

Fusion Culture : Fashion beyond Orientalism and Occidentalism

OpenAIRE

Lehnert, Gertrud; Mentges, Gabriele

2017-01-01

Tagungsbericht zu 'Fusion Culture: Fashion beyond Orientalism and Occidentalism', Universität Potsdam, 5. bis 7. November 2009 Die von Gabriele Mentges (Dortmund) und Gertrud Lehnert (Potsdam) veranstaltete und von der Volkswagen Stiftung geförderte Tagung befasste sich mit dem Thema 'Orientalismus und Mode' zum einen unter historischen Aspekten, zum anderen unter gegenwärtigen Bedingungen, in denen von 'Orientalismus' kaum noch die Rede sein kann. Denn längst haben wechselseitige Bezüge ...

78 FR 64204 - Science and Technology Reinvention Laboratory Personnel Management Demonstration Project...

Science.gov (United States)

2013-10-28

... Personnel Management Demonstration Project, Department of Navy, Office of Naval Research (ONR); Amendment... ONR Personnel Management Demonstration Project (75 FR 77380-77447, December 10, 2010). SUMMARY: On December 10, 2010 (75 FR 77380-77447), DoD published a notice of approval of a personnel management...

The effect of time-of-day and Ramadan fasting on anaerobic performances.

Science.gov (United States)

Chtourou, H; Hammouda, O; Chaouachi, A; Chamari, K; Souissi, N

2012-02-01

This study was designed to assess the effects of Ramadan-intermittent-fasting (RIF) and time-of-day on muscle power and fatigue during the Wingate test. In a randomized design, 10 football players completed a Wingate test at 07:00 and 17:00 h on 3 different occasions: one week before Ramadan (BR), the second week of Ramadan (SWR) and the fourth week of Ramadan (ER). There was an interval of 36-h between any 2 successive tests. During the Wingate test, peak power (PP), mean power (MP) and the fatigue index (FI) were recorded. While PP, MP and FI were greater in the evening than in the morning during BR (pRamadan (i. e., SWR and ER) due to a significant decrease in PP and MP in the evening (pRamadan in comparison with BR. These results suggest that Ramadan might modify the circadian rhythm of muscle power and fatigue during the Wingate test by decreasing power output and increasing muscle fatigue at the time of the acrophase. © Georg Thieme Verlag KG Stuttgart · New York.

Plasmonic Photonic-Crystal Slabs: Visualization of the Bloch Surface Wave Resonance for an Ultrasensitive, Robust and Reusable Optical Biosensor

Directory of Open Access Journals (Sweden)

Alexander V. Baryshev

2014-12-01

Full Text Available A one-dimensional photonic crystal (PhC with termination by a metal film—a plasmonic photonic-crystal slab—has been theoretically analyzed for its optical response at a variation of the dielectric permittivity of an analyte and at a condition simulating the molecular binding event. Visualization of the Bloch surface wave resonance (SWR was done with the aid of plasmon absorption in a dielectric/metal/dielectric sandwich terminating a PhC. An SWR peak in spectra of such a plasmonic photonic crystal (PPhC slab comprising a noble or base metal layer was shown to be sensitive to a negligible variation of refractive index of a medium adjoining to the slab. As a consequence, the considered PPhC-based optical sensors exhibited an enhanced sensitivity and a good robustness in comparison with the conventional surface-plasmon and Bloch surface wave sensors. The PPhC biosensors can be of practical importance because the metal layer is protected by a capping dielectric layer from contact with analytes and, consequently, from deterioration.

78 FR 55225 - Determination of Attainment for the Chico Nonattainment Area for the 2006 Fine Particle Standard...

Science.gov (United States)

2013-09-10

...); and 75 FR 27944 (May 19, 2010) (Coso Junction, California area). Thus EPA has established that, under... Office of Management and Budget under Executive Order 12866 (58 FR 51735, October 4, 1993); Does not... based on health or safety risks subject to Executive Order 13045 (62 FR 19885, April 23, 1997); Is not a...

Disentangling the f(R). Duality

International Nuclear Information System (INIS)

Broy, Benedict J.; Westphal, Alexander; Pedro, Francisco G.; Univ. Autonoma de Madrid

2014-11-01

Motivated by UV realisations of Starobinsky-like inflation models, we study generic exponential plateau-like potentials to understand whether an exact f(R)-formulation may still be obtained when the asymptotic shift-symmetry of the potential is broken for larger field values. Potentials which break the shift symmetry with rising exponentials at large field values only allow for corresponding f(R)-descriptions with a leading order term R n with 1 2 -term survives as part of a series expansion of the function f(R) and thus cannot maintain a plateau for all field values. We further find a lean and instructive way to obtain a function f(R) describing m 2 φ 2 -inflation which breaks the shift symmetry with a monomial, and corresponds to effectively logarithmic corrections to an R+R 2 model. These examples emphasise that higher order terms in f(R)-theory may not be neglected if they are present at all. Additionally, we relate the function f(R) corresponding to chaotic inflation to a more general Jordan frame set-up. In addition, we consider f(R)-duals of two given UV examples, both from supergravity and string theory. Finally, we outline the CMB phenomenology of these models which show effects of power suppression at low-l.

On the 221 Rn → 221 Fr decay scheme

International Nuclear Information System (INIS)

Gromov, K.Ya.; Norseev, Yu.V.; Samatov, Zh.K.; Fominykh, V.I.; Chumin, V.G.; Kudrya, S.A.; Sergienko, V.A.

2002-01-01

The results of investigating the 221 Rnβ - - decay and the 225 Ac α-decay are compared. It is shown that 221 Fr levels at 145.9 and 393.2 keV are excited at the 221 Rn decay. Intensities and reduced probabilities of the β - - decay to the 221 Fr levels are determined. A conclusion is drawn that the parity of the 221 Rn ground state is positive

Forty-Fifth Annual Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Presentations

International Nuclear Information System (INIS)

2012-01-01

The objectives of the meeting were to: • Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); • Review the progress since the 44 th TWG-FR Annual Meeting, including the status of the actions; • Consider topical technical meeting arrangements for 2012-2013, as well as review FR-related activities included in the IAEA Programme & Budget (P&B) biennium 2012-2013; • Review the IAEA’s concluded, on-going and planned coordinated research projects in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives (GIF, INPRO, NEA, ESNII, etc.)

Reconstructing an f(R) model from holographic dark energy: using the observational evidence

International Nuclear Information System (INIS)

Saaidi, Kh; Aghamohammadi, A

2012-01-01

We investigate the correspondence relation between f(R) gravity and an interacting holographic dark energy (HDE). By obtaining the conditions needed for some observational evidence such as positive acceleration expansion of the Universe, crossing the phantom divide line and validity of the thermodynamics second law in an interacting HDE model and corresponding it with the f(R) model of gravity, we find a viable f(R) model that can explain the present Universe. We also obtain the explicit evolutionary forms of the corresponding scalar field, potential and scale factor of the Universe. (paper)

76 FR 36879 - Minnesota: Final Authorization of State Hazardous Waste Management Program Revision

Science.gov (United States)

2011-06-23

... Treatment Subcategories for Radioactively Contaminated Cadmium-, Mercury-, and Silver- Containing Batteries..., 1998 (63 FR 28556) Land Disposal Restrictions Phase IV; Hazardous Soils Treatment Standards and..., October 22, 1998 (63 FR 56710) Hazardous Remediation Waste Management Requirements (HWIR-Media), Checklist...

LOW-POWER RADIO GALAXIES IN THE DISTANT UNIVERSE: A SEARCH FOR FR I AT 1 < z < 2 IN THE COSMOS FIELD

International Nuclear Information System (INIS)

Chiaberge, Marco; Tremblay, Grant; Macchetto, F. Duccio; Sparks, W. B.; Capetti, Alessandro; Tozzi, Paolo

2009-01-01

We present a search for FR I radio galaxies between 1 < z < 2 in the COSMOS field. In absence of spectroscopic redshift measurements, the selection method is based on multiple steps which make use of both radio and optical constraints. The basic assumptions are that (1) the break in radio power between low-power FR Is and the more powerful FR IIs does not change with redshift, and (2) that the photometric properties of the host galaxies of low-power radio galaxies in the distant universe are similar to those of FR IIs in the same redshift bin, as is the case for nearby radio galaxies. We describe the results of our search, which yields 37 low-power radio galaxy candidates that are possibly FR Is. We show that a large fraction of these low-luminosity radio galaxies display a compact radio morphology that does not correspond to the FR I morphological classification. Furthermore, our objects are apparently associated with galaxies that show clear signs of interactions, at odds with the typical behavior observed in low-z FR I hosts. The compact radio morphology might imply that we are observing intrinsically small and possibly young objects that will eventually evolve into the giant FR Is we observe in the local universe. One of the objects appears as pointlike in Hubble Space Telescope (HST) images. This might belong to a population of FR I-QSOs, which however would represent a tiny minority of the overall population of high-z FR Is. As for the local FR Is, a large fraction of our objects are likely to be associated with groups or clusters, making them 'beacons' for high-redshift clusters of galaxies. Our search for candidate high-z FR Is we present in this paper constitutes a pilot study for objects to be observed with future high-resolution and high-sensitivity instruments such as the EVLA and ALMA in the radio band, HST/WFC3 in the optical and IR, James Webb Space Telescope in the IR, as well as future generation X-ray satellites.

Horizontal variation in trace elements and soil characteristics at ...

African Journals Online (AJOL)

2016-10-04

Oct 4, 2016 ... Soil indicators – pH, soil organic matter (SOM) and soil water retention (SWR) – were also ... The determination of total extractable trace element concen- ..... Tshipise soil. Factor 1. Factor 2. Factor 1. Factor 2. Li. −0.497. 0.176 ..... KABANDA TA (2003) Climate in A first synthesis of the environmental, bio-.

Purification of antilisterial peptide (SubtilosinA from novel Bacillus tequilensis FR9 and demonstrate their pathogen invasion protection ability using human carcinoma cell line.

Directory of Open Access Journals (Sweden)

Rizwana Parveen Rani

2016-12-01

Full Text Available This study focuses on isolation, screening and characterization of novel probiotics from gastrointestinal tract of free-range chicken (Gallus gallus domesticus. Fifty seven colonies were isolated and three isolates (FR4, FR9 and FR12 were selected and identified as Lactobacillus gasseri FR4, Bacillus tequilensis FR9 and L. animalis FR12 by 16S rRNA sequencing. Three strains were able to survive in stimulated acidic and bile conditions and inhibit the growth of pathogens. Especially, FR9 exhibited maximum inhibition against Listeria monocytogenes and none of them exhibited hemolytic activity. Native-PAGE revealed the presence of low molecular weight (3.4-5.0 KDa antimicrobial peptide. The peptide was further purified by Sephadex G-50 column and RP-HPLC using C18 column. N-terminal amino acid sequencing of antimicrobial peptide showed 100% consensus to antilisterial peptide SubtilosinA and SboA gene was amplified from FR9 genome. FR9 showed maximum aggregation activity, EPS production (85.46 mg/L and cholesterol assimilation (63.12 ± 0.05 µg/mL. Strong adhesion property (12.6% and pathogen invasion protection ability was revealed by B. tequilensis FR9 towards HCT-116 human colon carcinoma cell line. This is the first study to demonstrate antilisterial SubtilosinA production of B. tequilensis. Our results indicate that B. tequilensis FR9 strain furnish the essential characteristics of a potential probiotics and might be incorporated into human and animal food supplements.

Japanese FR Deployment Scenario Study after the Fukushima Accident

International Nuclear Information System (INIS)

Ono, Kiyoshi; Shiotani, Hiroki; Ohtaki, Akira; Mukaida, Kyoko; Abe, Tomoyuki

2013-01-01

Conclusion: • The results revealed a need for the implementation of reprocessing and development of FR from the view point of reducing waste, etc. in the medium to long term. • JAEA’s contribution to international cooperation and standardization focusing on the enhancement of safety and reduction of the radioactive waste burden will be increasingly important in current situation. • JAEA intend to continue to build and propose FR deployment scenarios and identify their characteristics

77 FR 15966 - Ohio: Final Authorization of State Hazardous Waste Management Program Revision

Science.gov (United States)

2012-03-19

... Hazardous Waste Management Program Revision AGENCY: Environmental Protection Agency (EPA). ACTION: Final..., 1989 (54 FR 27170) to implement the RCRA hazardous waste management program. We granted authorization... Combustors; Final Rule, Checklist 198, February 14, 2002 (67 FR 6968); Hazardous Waste Management System...

78 FR 17140 - Upholstered Furniture Fire Safety Technology; Meeting and Request for Comments

Science.gov (United States)

2013-03-20

... retardant (FR) chemicals, specialty fibers/fabrics without FR chemicals, inherently fire resistant materials... Furniture Fire Safety Technology; Meeting and Request for Comments AGENCY: Consumer Product Safety... Commission (CPSC, Commission, or we) is announcing its intent to hold a meeting on upholstered furniture fire...

Unifying inflation with dark energy in modified F(R) Horava-Lifshitz gravity

International Nuclear Information System (INIS)

Elizalde, E.; Saez-Gomez, D.; Nojiri, S.; Odintsov, S.D.

2010-01-01

We study FRW cosmology for a non-linear modified F(R) Horava-Lifshitz gravity which has a viable convenient counterpart. A unified description of early-time inflation and late-time acceleration is possible in this theory, but the cosmological dynamic details are generically different from the ones of the convenient viable F(R) model. Remarkably, for some specific choice of parameters they do coincide. The emergence of finite-time future singularities is investigated in detail. It is shown that these singularities can be cured by adding an extra, higher-derivative term, which turns out to be qualitatively different when compared with the corresponding one of the convenient F(R) theory. (orig.)

Propagating Degrees of Freedom in f(R Gravity

Directory of Open Access Journals (Sweden)

Yun Soo Myung

2016-01-01

Full Text Available We have computed the number of polarization modes of gravitational waves propagating in the Minkowski background in f(R gravity. These are three of two from transverse-traceless tensor modes and one from a massive trace mode, which confirms the results found in the literature. There is no massless breathing mode and the massive trace mode corresponds to the Ricci scalar. A newly defined metric tensor in f(R gravity satisfies the transverse-traceless (TT condition as well as the TT wave equation.

The coincidence problem in holographic f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Bisabr, Yousef, E-mail: y-bisabr@srttu.edu [Department of Physics, Shahid Rajaee Teacher Training University, Lavizan, Tehran 16788 (Iran, Islamic Republic of)

2011-09-15

It is well known that f(R) gravity models formulated in the Einstein conformal frame are equivalent to Einstein gravity together with a minimally coupled scalar field. In this case, the scalar field couples with the matter sector and the coupling term is given by the conformal factor. We apply the holographic principle to such interacting models. In a spatially flat universe, we show that the Einstein frame representation of f(R) models leads to a constant ratio of energy densities of dark matter to dark energy.

Phage FR38 Treatment on Sprague Dawley Rat Inferred from Blood Parameters and Organ Systems

Directory of Open Access Journals (Sweden)

DEWI SARTIKA

2012-09-01

Full Text Available The ability of phage FR38 to lysis indigenous Salmonella P38 from feces of diarrheal patient has been studied. However, effects of phage FR38 on organ system were not revealed as yet. This study was conducted to observe the effect of phage FR38 on blood chemistry, kidney functions, and liver functions. Twelve Sprague-Dawley rats were used as a model for this study that were divided into two groups; (i control and (ii treated group with phage FR38. For treated phage group, each rat was administered by 5 ml/kg bw of 1.59•107 pfu/ml of phage intragastric. The blood parameters were analysed on day 16. The results revealed that body and organs weight, erythrocyte, hematocrit, hemoglobin, leukocyte, total protein, creatinine, SGOT, and SGPT of phage treatment rats were not significantly different with the control rats on day 16 (P > 0.05. Therefore, this study showed was no effect of phage FR38 on body weight, blood chemistry, kidney and liver functions of the rat (P > 0.05.

Phage FR38 Treatment on Sprague Dawley Rat Inferred from Blood Parameters and Organ Systems

Directory of Open Access Journals (Sweden)

DEWI SARTIKA

2012-09-01

Full Text Available The ability of phage FR38 to lysis indigenous Salmonella P38 from feces of diarrheal patient has been studied. However, effects of phage FR38 on organ system were not revealed as yet. This study was conducted to observe the effect of phage FR38 on blood chemistry, kidney functions, and liver functions. Twelve Sprague-Dawley rats were used as a model for this study that were divided into two groups; (i control and (ii treated group with phage FR38. For treated phage group, each rat was administered by 5 ml/kg bw of 1.59-107 pfu/ml of phage intragastric. The blood parameters were analysed on day 16. The results revealed that body and organs weight, erythrocyte, hematocrit, hemoglobin, leukocyte, total protein, creatinine, SGOT, and SGPT of phage treatment rats were not significantly different with the control rats on day 16 (P > 0.05. Therefore, this study showed was no effect of phage FR38 on body weight, blood chemistry, kidney and liver functions of the rat (P > 0.05.

Constraint on reconstructed f(R) gravity models from gravitational waves

Science.gov (United States)

Lee, Seokcheon

2018-06-01

The gravitational wave (GW) detection of a binary neutron star inspiral made by the Advanced LIGO and Advanced Virgo paves the unprecedented way for multi-messenger observations. The propagation speed of this GW can be scrutinized by comparing the arrival times between GW and neutrinos or photons. It provides the constraint on the mass of the graviton. f(R) gravity theories have the habitual non-zero mass gravitons in addition to usual massless ones. Previously, we show that the model independent f(R) gravity theories can be constructed from the both background evolution and the matter growth with one undetermined parameter. We show that this parameter can be constrained from the graviton mass bound obtained from GW detection. Thus, the GW detection provides the invaluable constraint on the validity of f(R) gravity theories.

Herbert Fröhlich a physicist ahead of his time

CERN Document Server

Hyland, G J

2015-01-01

This biography provides a stimulating and coherent blend of scientific and personal narratives describing the many achievements of the theoretical physicist Herbert Fröhlich. For more than half a century, Fröhlich was an internationally renowned and much respected figure who exerted a decisive influence, often as a ‘man ahead of his time’, in fields as diverse as meson theory and biology. Although best known for his contributions to the theory of dielectrics and superconductivity, he worked in many other fields, his most important legacy being the pioneering introduction quantum field-theoretical methods into condensed matter physics in 1952, which revolutionised the subsequent development of the subject. Gerard Hyland has written an absorbing and informative account, in which Herbert Fröhlich’s magnetic personality shines through.

77 FR 15755 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2012-03-16

... Reports Report title: Consolidated Financial Statements for Bank Holding Companies. Agency form number: FR... operations. The FR Y-9C consists of standardized financial statements similar to the Federal Financial..., supporting statements and approved collection of information instruments are placed into OMB's public docket...

f(R in Holographic and Agegraphic Dark Energy Models and the Generalized Uncertainty Principle

Directory of Open Access Journals (Sweden)

Barun Majumder

2013-01-01

Full Text Available We studied a unified approach with the holographic, new agegraphic, and f(R dark energy model to construct the form of f(R which in general is responsible for the curvature driven explanation of the very early inflation along with presently observed late time acceleration. We considered the generalized uncertainty principle in our approach which incorporated the corrections in the entropy-area relation and thereby modified the energy densities for the cosmological dark energy models considered. We found that holographic and new agegraphic f(R gravity models can behave like phantom or quintessence models in the spatially flat FRW universe. We also found a distinct term in the form of f(R which goes as R 3 / 2 due to the consideration of the GUP modified energy densities. Although the presence of this term in the action can be important in explaining the early inflationary scenario, Capozziello et al. recently showed that f(R ~ R 3 / 2 leads to an accelerated expansion, that is, a negative value for the deceleration parameter q which fits well with SNeIa and WMAP data.

Forty-Sixth Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Working Material

International Nuclear Information System (INIS)

2013-01-01

The objectives of the meeting were to: • Review the current status and the progress since the 45th TWG-FR meeting of FR and ADS technology development activities in IAEA Member States; • Review the activities (past, present and planned) of the IAEA’s project 1.1.5.3, “Support for fast reactor research, technology development and deployment” to ensure that they remain relevant to the needs of Member States; • Provide the experts group with updates to advise the IAEA on FR and ADS activities, including on proposals for relevant studies and reviews; • Serve as a means for exchanging information on national and international FR and ADS programmes; • Review the main achievements and outcomes of the “International Conference on Fast Reactors and Related Fuel Cycle: Safe Technologies and Sustainable Scenarios – FR13”, held on 4 – 7 March 2013 in Paris, France; • Promote the exchange of technical information by proposing topics for, and assisting in the organization of, IAEA Workshops and Technical Meetings for 2014-2015 and further, and • Review the IAEA’s concluded, on-going and planned coordinated research projects (CRPs) in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives (GIF, INPRO, NEA, Euratom, etc.)

Extension of loop quantum gravity to f(R) theories.

Science.gov (United States)

Zhang, Xiangdong; Ma, Yongge

2011-04-29

The four-dimensional metric f(R) theories of gravity are cast into connection-dynamical formalism with real su(2) connections as configuration variables. Through this formalism, the classical metric f(R) theories are quantized by extending the loop quantization scheme of general relativity. Our results imply that the nonperturbative quantization procedure of loop quantum gravity is valid not only for general relativity but also for a rather general class of four-dimensional metric theories of gravity.

76 FR 36989 - Medical Devices; Exception From General Requirements for Informed Consent

Science.gov (United States)

2011-06-24

...: I. Background A. Overview of Final Rule In the Federal Register of June 7, 2006 (71 FR 32827), FDA... contended that the rule will allow the use of experimental tests, which have an unknown rate of inaccurate... be entitled to withdraw previously collected data from the research database * * *'' (71 FR 32827 at...

76 FR 19524 - Privacy Act of 1974; Deletion of System of Records

Science.gov (United States)

2011-04-07

...), which was first published FR Vol. 52, No 155 dated August 12, 1987. The system of records known as... means to grant individuals access permissions to the resources of the Austin Data Processing Center. The... replaced by 87VA045, ``Automated Customer Registration System (ACRS)-VA'', which was published in FR Vol...

Grappling extremes: Molecular methods combined with cultivation reveal the composition and biology of space-relevant microbial communities

OpenAIRE

Perras, Alexandra Kristin

2018-01-01

Extreme Biotope sind durch eine Vielzahl von physischen und chemischen Stressvariablen gekennzeichnet und bieten eine hervorragende Möglichkeit die Grenzen des Lebens zu verstehen – auch außerhalb der Erde z.B. auf der International Raumstation (ISS) oder auf dem Mars. Einige terrestrische, extreme Lebensräume ähneln stark ausgewählten Bedingungen auf dem Mars und lassen daher Rückschlüsse auf dessen potenzieller Bewohnbarkeit zu. Ein wesentlicher Faktor ist der Mangel an Sauerstoff auf dem M...

78 FR 46499 - Change in Terminology: “Mental Retardation” to “Intellectual Disability”

Science.gov (United States)

2013-08-01

... Change in Terminology: ``Mental Retardation'' to ``Intellectual Disability'' AGENCY: Social Security... INFORMATION CONTACT: Cheryl Williams, Office of Medical Listings Improvement, Social Security Administration... terminology.\\3\\ \\2\\ Public Law 111-256. \\3\\ See 77 FR 29002 and 77 FR 6022-01. Public Comments In the NPRM, we...

SN 2012fr

DEFF Research Database (Denmark)

Contreras, Carlos; Phillips, M. M.; Burns, Christopher R.

2018-01-01

We present detailed ultraviolet, optical, and near-infrared light curves of the Type Ia supernova (SN) 2012fr, which exploded in the Fornax cluster member NGC 1365. These precise high-cadence light curves provide a dense coverage of the flux evolution from -12 to +140 days with respect to the epo...

String duality transformations in f(R) gravity from Noether symmetry approach

Energy Technology Data Exchange (ETDEWEB)

Capozziello, Salvatore [Dipartimento di Fisica, Università di Napoli ' ' Federico II' ' , Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126, Napoli (Italy); Gionti, Gabriele S.J. [Specola Vaticana, Vatican City, V-00120, Vatican City State (Vatican City State, Holy See); Vernieri, Daniele, E-mail: capozziello@na.inf.it, E-mail: ggionti@as.arizona.edu, E-mail: vernieri@iap.fr [Sorbonne Universités, UPMC Univ Paris 6 et CNRS, UMR 7095, Institut d' Astrophysique de Paris, GReCO, 98bis Bd Arago, 75014 Paris (France)

2016-01-01

We select f(R) gravity models that undergo scale factor duality transformations. As a starting point, we consider the tree-level effective gravitational action of bosonic String Theory coupled with the dilaton field. This theory inherits the Busher's duality of its parent String Theory. Using conformal transformations of the metric tensor, it is possible to map the tree-level dilaton-graviton string effective action into f(R) gravity, relating the dilaton field to the Ricci scalar curvature. Furthermore, the duality can be framed under the standard of Noether symmetries and exact cosmological solutions are derived. Using suitable changes of variables, the string-based f(R) Lagrangians are shown in cases where the duality transformation becomes a parity inversion.

String duality transformations in f(R) gravity from Noether symmetry approach

International Nuclear Information System (INIS)

Capozziello, Salvatore; Gionti, Gabriele S.J.; Vernieri, Daniele

2016-01-01

We select f(R) gravity models that undergo scale factor duality transformations. As a starting point, we consider the tree-level effective gravitational action of bosonic String Theory coupled with the dilaton field. This theory inherits the Busher's duality of its parent String Theory. Using conformal transformations of the metric tensor, it is possible to map the tree-level dilaton-graviton string effective action into f(R) gravity, relating the dilaton field to the Ricci scalar curvature. Furthermore, the duality can be framed under the standard of Noether symmetries and exact cosmological solutions are derived. Using suitable changes of variables, the string-based f(R) Lagrangians are shown in cases where the duality transformation becomes a parity inversion

78 FR 24785 - Public Hearing

Science.gov (United States)

2013-04-26

... Spring, Logan Branch Watershed), Spring Township, Centre County, Pa. Application for surface water...: April 19, 2013. Paul O. Swartz, Executive Director. [FR Doc. 2013-09887 Filed 4-25-13; 8:45 am] BILLING...

78 FR 11858 - Applications for New Awards; Arts in Education Model Development and Dissemination Program

Science.gov (United States)

2013-02-20

... on December 15, 2010 (75 FR 78486), and corrected on May 12, 2011 (76 FR 27637). Arts includes music... baseline outcome measurement is compared with a post treatment measure, the treatment would then be stopped...

76 FR 56242 - Energy Northwest; Establishment of Atomic Safety and Licensing Board

Science.gov (United States)

2011-09-12

... Northwest's Columbia Generating Station,'' was received via E-Filing on August 22, 2011.\\1\\ \\1\\ On August 22... with the NRC E-Filing rule, which the NRC promulgated in August 2007 (72 FR 49,139). Issued at..., 1972, published in the Federal Register, 37 FR 28,710 (1972), and the Commission's regulations, see, e...

77 FR 4999 - Decision and Order Granting a Waiver to LG From the Department of Energy Clothes Washer Test...

Science.gov (United States)

2012-02-01

..., 2011)); (76 FR 79666 (Dec. 22, 2011)) and Samsung (76 FR 13169 (Mar. 10, 2011)); 76 FR 50207 (Aug. 12... consideration of all the material that was submitted by LG, the waivers granted to Whirlpool, GE, Samsung and... clothes washer products for compliance, marketing, or other purposes only to the extent that such products...

78 FR 47024 - Excepted Service

Science.gov (United States)

2013-08-02

... Readiness). Department of Education......... Office of the Under Executive Director, DB130022 4/3/2013... Kaplan, Acting Director. [FR Doc. 2013-18607 Filed 8-1-13; 8:45 am] BILLING CODE 6325-39-P ...

77 FR 32970 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2012-06-04

... more granular data reported in the FR Y-14Q and the FR Y-14M schedules for their Consolidated Financial... collections of information. Copies of the Paperwork Reduction Act Submission, supporting statements and... nonbank financial companies supervised by the Federal Reserve are subject to enhanced risk-based and...

77 FR 56842 - Agency Information Collection Activities: Announcement of Board Approval Under Delegated...

Science.gov (United States)

2012-09-14

... Organizational Structure, Annual Report of Bank Holding Companies, and Annual Report of Foreign Banking... supplement to the FR Y-10) a one-time verification of each SLHC's organizational structure. After considering... the Report of Changes in Organizational Structure. Agency form number: FR Y-10E. OMB control number...

Stability of the Einstein static universe in f(R, T) gravity

Energy Technology Data Exchange (ETDEWEB)

Shabani, Hamid [University of Sistan and Baluchestan, Physics Department, Faculty of Sciences, Zahedan (Iran, Islamic Republic of); Ziaie, Amir Hadi [Kahnooj Branch, Islamic Azad University, Department of Physics, Kerman (Iran, Islamic Republic of)

2017-01-15

The Einstein static (ES) universe has played a major role in various emergent scenarios recently proposed in order to cure the problem of the initial singularity of the standard model of cosmology. In the model we address, we study the existence and stability of an ES universe in the context of f(R, T) modified theories of gravity. Considering specific forms of the f(R, T) function, we seek for the existence of solutions representing ES state. Using dynamical system techniques along with numerical analysis, we find two classes of solutions: the first one is always unstable of the saddle type, while the second is always stable so that its dynamical behavior corresponds to a center equilibrium point. The importance of the second class of solutions is due to the significant role they play in constructing non-singular emergent models in which the universe could have experienced past-eternally a series of infinite oscillations about such an initial static state after which it enters, through a suitable physical mechanism, to an inflationary era. Considering specific forms for the functionality of f(R, T), we show that this theory is capable of providing cosmological solutions which admit emergent universe (EU) scenarios. We also investigate homogeneous scalar perturbations for the mentioned models. The stability regions of the solutions are parametrized by a linear equation of state (EoS) parameter and other free parameters that will be introduced for the models. Our results suggest that modifications in f(R, T) gravity would lead to stable solutions which are unstable in f(R) gravity model. (orig.)

Stability of the Einstein static universe in f(R, T) gravity

International Nuclear Information System (INIS)

Shabani, Hamid; Ziaie, Amir Hadi

2017-01-01

The Einstein static (ES) universe has played a major role in various emergent scenarios recently proposed in order to cure the problem of the initial singularity of the standard model of cosmology. In the model we address, we study the existence and stability of an ES universe in the context of f(R, T) modified theories of gravity. Considering specific forms of the f(R, T) function, we seek for the existence of solutions representing ES state. Using dynamical system techniques along with numerical analysis, we find two classes of solutions: the first one is always unstable of the saddle type, while the second is always stable so that its dynamical behavior corresponds to a center equilibrium point. The importance of the second class of solutions is due to the significant role they play in constructing non-singular emergent models in which the universe could have experienced past-eternally a series of infinite oscillations about such an initial static state after which it enters, through a suitable physical mechanism, to an inflationary era. Considering specific forms for the functionality of f(R, T), we show that this theory is capable of providing cosmological solutions which admit emergent universe (EU) scenarios. We also investigate homogeneous scalar perturbations for the mentioned models. The stability regions of the solutions are parametrized by a linear equation of state (EoS) parameter and other free parameters that will be introduced for the models. Our results suggest that modifications in f(R, T) gravity would lead to stable solutions which are unstable in f(R) gravity model. (orig.)

78 FR 27058 - Approval and Promulgation of Air Quality Implementation Plans; Louisiana; Approval of Section 110...

Science.gov (United States)

2013-05-09

... and Fuels (69 FR 38958); and (4) EPA's Locomotive and Marine Compression-Ignition Engines rule (73 FR... Products Group IV (Miscellaneous Metal Products Coatings, Plastic Parts Coatings, Auto and Light-Duty Truck...

78 FR 40778 - Notice of Meeting

Science.gov (United States)

2013-07-08

... information. ADDRESSES: Mayflower Renaissance Hotel Washington, 1127 Connecticut Ave. NW., Washington DC 20036..., 2013. Diane Janosek, Chief Legal Officer, Privacy and Civil Liberties Oversight Board. [FR Doc. 2013...

77 FR 71097 - Addition of Certain Persons to the Entity List

Science.gov (United States)

2012-11-29

... Trading FZE, P.O Box 10559, Ras Al Khaimah, U.A.E.; and Ras Al Khaimah Free Trade Zone (RAKFTZ), U.A.E..., the Emirati entity, Infotec, a.k.a., Info Tech, Ras Al Khaimah Free Trade Zone (RAKFTZ), U.A.E. The... EAR. (See Sec. 77 FR [INSERT FR --I. Tec Trading FZE, 744.11 of the PAGE NUMBER] P.O. Box 10559, Ras...

Generation of spherically symmetric metrics in f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Amirabi, Z.; Halilsoy, M.; Mazharimousavi, S.H. [Eastern Mediterranean University, Department of Physics, Gazimagusa (Turkey)

2016-06-15

In D-dimensional spherically symmetric f(R) gravity there are three unknown functions to be determined from the fourth order differential equations. It is shown that the system remarkably may be integrated to relate two functions through the third one to provide a reduction to second order equations accompanied with a large class of potential solutions. The third function, which acts as the generator of the process, is F(R) = (df(R))/(dR). We recall that our generating function has been employed as a scalar field with an accompanying self-interacting potential previously, which is entirely different from our approach. Reduction of f(R) theory into a system of equations seems to be efficient enough to generate a solution corresponding to each generating function. As particular examples, besides the known ones, we obtain new black hole solutions in any dimension D. We further extend our analysis to cover non-zero energy-momentum tensors. Global monopole and Maxwell sources are given as examples. (orig.)

Probing the f(R) formalism through gravitational wave polarizations

International Nuclear Information System (INIS)

Alves, M.E.S.; Miranda, O.D.; Araujo, J.C.N. de

2009-01-01

The direct observation of gravitational waves (GW) in the near future, and the corresponding determination of the number of independent polarizations, is a powerful tool to test general relativity and alternative theories of gravity. In the present work we use the Newman-Penrose formalism to characterize GWs in quadratic gravity and in a particular class of f(R) Lagrangians. We find that both quadratic gravity and the f(R) theory belong to the most general invariant class of GWs, i.e., they can present up to six independent polarizations of GWs. For a particular combination of the parameters, we find that quadratic gravity can present up to five polarizations states. On the other hand, if we use the Palatini approach for f(R) theories, GWs present only the usual two transverse-traceless polarizations such as in general relativity. Thus, we conclude that the observation of GWs can strongly constrain the suitable formalism for these theories.

Application of minidisk infiltrometer to estimate soil water repellency

Science.gov (United States)

Alagna, Vincenzo; Iovino, Massimo; Bagarello, Vincenzo; Mataix-Solera, Jorge; Lichner, Ľubomír

2016-04-01

Soil water repellency (SWR) reduces affinity of soils to water resulting in detrimental implication for plants growth as well as for hydrological processes. During the last decades, it has become clear that SWR is much more widespread than formerly thought, having been reported for a wide variety of soils, land uses and climatic conditions. The repellency index (RI), based on soil-water to soil-ethanol sorptivity ratio, was proposed to characterize subcritical SWR that is the situation where a low degree of repellency impedes infiltration but does not prevent it. The minidisk infiltrometer allows adequate field assessment of RI inherently scaled to account for soil physical properties other than hydrophobicity (e.g., the volume, connectivity and the geometry of pores) that directly influence the hydrological processes. There are however some issues that still need consideration. For example, use of a fixed time for both water and ethanol sorptivity estimation may lead to inaccurate RI values given that water infiltration could be negligible whereas ethanol sorptivity could be overestimated due to influence of gravity and lateral diffusion that rapidly come into play when the infiltration process is very fast. Moreover, water and ethanol sorptivity values need to be determined at different infiltration sites thus implying that a large number of replicated runs should be carried out to obtain a reliable estimate of RI for a given area. Minidisk infiltrometer tests, conducted under different initial soil moisture and management conditions in the experimental sites of Ciavolo, Trapani (Italy) and Javea, Alicante (East Spain), were used to investigate the best applicative procedure to estimate RI. In particular, different techniques to estimate the water, Sw, and ethanol, Se, sorptivities were compared including i) a fixed 1-min time interval, ii) the slope of early-time 1D infiltration equation and iii) the two-term transient 3D infiltration equation that explicitly

75 FR 58328 - Nebraska: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2010-09-24

... (67 FR 48393). Specifically, the commenter argued that the Phase IV Land Disposal Restriction (LDR... Significantly Affect Energy Supply, Distribution, or Use'' (66 FR 28355, May 22, 2001), because it is not a... inconsistent with applicable law for EPA, when it reviews a State authorization application, to require the use...

77 FR 34229 - Idaho: Final Authorization of State Hazardous Waste Management Program; Revision

Science.gov (United States)

2012-06-11

... waste regulated under RCRA. In 2003, EPA proposed the sector as an enforcement priority for fiscal years...) Amendments (73 FR 18970, April 8, 2008); F019 Exemption for Wastewater Treatment Sludges from Auto... Comparable Fuel Exclusion (75 FR 33712, June 15, 2010). The federal regulation for the Export of Shipments of...

77 FR 68076 - Approval and Promulgation of Air Quality Implementation Plans; West Virginia; Redesignation of...

Science.gov (United States)

2012-11-15

... preserve the environmental benefits provided by CAIR, North Carolina v. EPA, 550 F.3d 1176, 1178 (DC Cir... CSR 19. See 71 FR 64468 (November 2, 2006) (approving NSR program into the SIP) and 77 FR 63736...

75 FR 47540 - Extension of the Award Period for Certain Minority Business Enterprise Centers

Science.gov (United States)

2010-08-06

... DEPARTMENT OF COMMERCE Minority Business Development Agency [Docket No.: 100730316-0318-02... Development Agency, Commerce. ACTION: Notice. SUMMARY: The Minority Business Development Agency (MBDA... Alabama MBEC Mobile Area Chamber of State of Alabama........ 71 FR 42351, as amended by 71 FR 45773 and by...

75 FR 5545 - Explosives

Science.gov (United States)

2010-02-03

... the Storage of Ammonium Nitrate. OSHA subsequently made several minor revisions to the standard (37 FR... explosives; storing ammonium nitrate; and storing small arms ammunition, small arms primers, and small arms..., which is extremely widespread, causes lung disease, silicosis and lung cancer. Terminating the...

Jean Frémon/Rue du Regard

OpenAIRE

Mokhtari, Sylvie

2012-01-01

La prose de Jean Frémon sur la peinture se déploie ici en 48 courts textes, dont une bonne moitié d’entre eux avait déjà connu une première édition dans des revues. Abordés isolément, les œuvres de Bill Viola, David Hockney, Antoni Tàpies, Gilles Aillaud, Roy Lichtenstein… sont soumises à la traduction littéraire qu’en donne le « regardeur de tableau, jardinier, journalier, vagabond » et écrivain. J. Frémon chemine entre art et littérature à la rencontre d’artistes qui l’interpellent dans l’H...

Search for permanent EDM using laser cooled Fr atoms

Energy Technology Data Exchange (ETDEWEB)

Kawamura, Hirokazu, E-mail: kawamura@cyric.tohoku.ac.jp [Tohoku University, Cyclotron and Radioisotope Center (Japan); Aoki, T. [University of Tokyo, Graduate School of Arts and Sciences (Japan); Arikawa, H.; Ezure, S. [Tohoku University, Cyclotron and Radioisotope Center (Japan); Furukawa, T. [Tokyo Metropolitan University, Department of Physics (Japan); Harada, K. [Tohoku University, Cyclotron and Radioisotope Center (Japan); Hatakeyama, A. [Tokyo University of Agriculture and Technology, Department of Applied Physics (Japan); Hatanaka, K. [Osaka University, Research Center for Nuclear Physics (Japan); Hayamizu, T. [Tohoku University, Cyclotron and Radioisotope Center (Japan); Imai, K. [Japan Atomic Energy Agency, Advanced Science Research Center (Japan); Inoue, T.; Ishikawa, T.; Itoh, M.; Kato, T. [Tohoku University, Cyclotron and Radioisotope Center (Japan); Murakami, T. [Kyoto University, Department of Physics (Japan); Nataraj, H. S.; Sato, T. [Tohoku University, Cyclotron and Radioisotope Center (Japan); Shimizu, Y. [Tohoku University, Department of Physics (Japan); Wakasa, T. [Kyushu University, Department of Physics (Japan); Yoshida, H. P. [Osaka University, Research Center for Nuclear Physics (Japan); and others

2013-03-15

The existence of a non-zero electric dipole moment (EDM) implies the violation of time reversal symmetry. As the time-reversal symmetry violation predicted by the Standard Model (SM) for the electron EDM is too small to be observed with current experimental techniques and any a non-zero EDM would indicate new physics beyond the SM. The tiny signal from the electron EDM is enhanced in the heavy atoms such as francium (Fr). We are constructing the laser-cooled Fr factory to search for the electron EDM.

Reduction of environmental impact by FR cycle deployment

International Nuclear Information System (INIS)

Katoh, Atsushi; Nakai, Ryodai

2005-03-01

In this report radioactive waste generations in terms of disposal volume or disposal field equivalent, and the radioactive toxicity of HLW are evaluated to clarify the promising nuclear scenario for the sake of realization of sustainable society in 21st century. This analysis was conducted based on the outcomes of the mass flow evaluation tool 'FAMILY-21' which calculates a material balance for TRU in the following scenarios. 1) LWR once-through scenario, 2) Pu partly recycling in LWR scenario, 3) Pu full recycling in LWR scenario, 4) FBR deployment scenario, 5) Interim storage scenario. The result shows that the cumulative area of low level radioactive waste (LLW) disposal field at 2150 in the FR cycle deployment scenario is 1.8 times larger than that in the LWR once-through scenario. The area of LLW disposal field at 2150 is a few km 2 in all the scenarios. In contrast, the cumulative area of high level radioactive waste (HLW) disposal field at 2150 in the FR cycle deployment scenario is less than half of that in the LWR once-through scenario. The area of HLW disposal field at 2150 is about 10 times of the area of LLW disposal field. Moreover, the FR deployment reduces the radioactive toxicity of HLW by U/TRU recycling, and shortens the period to decay under the natural Uranium toxicity level. Considering the area of radioactive waste disposal field and the radioactive toxicity of HLW, the advantage of the FR cycle deployment is indicated quantitatively from the viewpoint of the environmental burden reduction. (author)

76 FR 63549 - Approval and Promulgation of Air Quality Implementation Plans; Indiana; Miscellaneous Metal and...

Science.gov (United States)

2011-10-13

.... manufacturing operations. 8-2-11 Fabric and vinyl coating. 10/23/1988 3/6/1992, 57 FR 8082. 8-2-12 Wood... transports and 11/5/1999 5/31/2002, 67 FR 38006. vapor collection systems; records. Rule 5. Miscellaneous...

78 FR 9915 - Agency Information Collection Activities: Submission for OMB Review; Comment Request; Basel II...

Science.gov (United States)

2013-02-12

...: Standardized Approach for Risk- Weighted Assets; Market Discipline and Disclosure Requirements (77 FR 52888...; Market Discipline and Disclosure Requirements (77 FR 52888); Regulatory Capital Rules: Advanced... certain approaches for determining risk-weighted assets, and (4) make certain public disclosures regarding...

75 FR 82277 - Health Insurance Issuers Implementing Medical Loss Ratio (MLR) Requirements Under the Patient...

Science.gov (United States)

2010-12-30

...-AA06 Health Insurance Issuers Implementing Medical Loss Ratio (MLR) Requirements Under the Patient... Register (FR Doc 2010-29596 (75 FR 74864)) entitled ``Health Insurance Issuers Implementing Medical Loss... request for comments entitled ``Health Insurance Issuers Implementing Medical Loss Ratio (MLR...

75 FR 43409 - Rhode Island: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2010-07-26

...--Statistical Methods for Evaluating Ground-Water Monitoring Data from Hazardous Waste Facilities, 53 FR 39720... Refining Primary and Secondary Oil/Water/Solids Separation Sludge Listings, 56 FR 21955, May 13, 1991: Rule... handle hazardous sludges as hazardous wastes when they leave the zero discharge unit. Whether this...

FR4-based electromagnetic energy harvester for wireless sensor nodes

Science.gov (United States)

Hatipoglu, G.; Ürey, H.

2010-01-01

Electromagnetic (EM) energy harvesting seems to be one of the most promising ways to power wireless sensors in a wireless sensor network. In this paper, FR4, the most commonly used PCB material, is utilized as a mechanical vibrating structure for EM energy harvesting for body-worn sensors and intelligent tire sensors, which involve impact loadings. FR4 can be a better material for such applications compared to silicon MEMS devices due to lower stiffness and broadband response. In order to demonstrate FR4 performance and broadband response, three moving magnet type EM generator designs are developed and investigated throughout the paper. A velocity-damped harvester simulation model is first developed, including a detailed magnetic model and the magnetic damping effects. The numerical results agree well with the experimental results. Human running acceleration at the hip area that is obtained experimentally is simulated in order to demonstrate system performance, which results in a scavenged power of about 40 µW with 15 m s-2 acceleration input. The designed FR4 energy scavengers with mechanical stoppers implemented are particularly well suited for nearly periodic and non-sinusoidal high- g excitations with rich harmonic content. For the intelligent tire applications, a special compact FR4 scavenger is designed that is able to withstand large shocks and vibrations due to mechanical shock stoppers built into the structure. Using our design, 0.4 mW power across a load resistance at off-resonance operation is obtained in shaker experiments. In the actual operation, the tangential accelerations as a result of the tire-road contact are estimated to supply power around 1 mW with our design, which is sufficient for powering wireless tire sensors. The normalized power density (NPD) of the designed actuators compares favorably with most actuators reported in the literature.

FR4-based electromagnetic energy harvester for wireless sensor nodes

International Nuclear Information System (INIS)

Hatipoglu, G; Ürey, H

2010-01-01

Electromagnetic (EM) energy harvesting seems to be one of the most promising ways to power wireless sensors in a wireless sensor network. In this paper, FR4, the most commonly used PCB material, is utilized as a mechanical vibrating structure for EM energy harvesting for body-worn sensors and intelligent tire sensors, which involve impact loadings. FR4 can be a better material for such applications compared to silicon MEMS devices due to lower stiffness and broadband response. In order to demonstrate FR4 performance and broadband response, three moving magnet type EM generator designs are developed and investigated throughout the paper. A velocity-damped harvester simulation model is first developed, including a detailed magnetic model and the magnetic damping effects. The numerical results agree well with the experimental results. Human running acceleration at the hip area that is obtained experimentally is simulated in order to demonstrate system performance, which results in a scavenged power of about 40 µW with 15 m s −2 acceleration input. The designed FR4 energy scavengers with mechanical stoppers implemented are particularly well suited for nearly periodic and non-sinusoidal high- g excitations with rich harmonic content. For the intelligent tire applications, a special compact FR4 scavenger is designed that is able to withstand large shocks and vibrations due to mechanical shock stoppers built into the structure. Using our design, 0.4 mW power across a load resistance at off-resonance operation is obtained in shaker experiments. In the actual operation, the tangential accelerations as a result of the tire–road contact are estimated to supply power around 1 mW with our design, which is sufficient for powering wireless tire sensors. The normalized power density (NPD) of the designed actuators compares favorably with most actuators reported in the literature

Sequence analysis of putative swrW gene required for surfactant ...

African Journals Online (AJOL)

Serratia marcescens produces biosurfactant serrawettin, essential for its population migration behavior. Serrawettin W1 was revealed to be an antibiotic serratamolide that makes it significant for deoxyribonucleic acid (DNA) and protein sequence analysis. Four nucleotide and amino-acid sequences from local strains ...

Chronische Polyarthritis (Früharthritis

Directory of Open Access Journals (Sweden)

Machold K

2005-01-01

Full Text Available Die Akkumulation von Knorpel- und Knochenschäden, wie sie für chronisch-destruktive Arthritisformen typisch ist, kann durch frühzeitige Intervention mit wirksamen Medikamenten verzögert oder verhindert werden. Voraussetzung ist die rechtzeitige Übernahme der Betreuung gefährdeter Patienten durch einen in der speziellen rheumatologischen Diagnostik und Therapie bewanderten Arzt. Dieser muß das gesamte Repertoire der Arthritistherapie (Medikamente, ergotherapeutische und physiotherapeutische Maßnahmen, Patientenaufklärung etc. entsprechend dem „State of the Art“ beherrschen. In den letzten Jahren erfolgte in vielen Ländern die Etablierung von Spezialeinrichtungen für Patienten mit früher Arthritis. Die an diesen Patienten gewonnenen Erkenntnisse deuten darauf hin, daß die „kritische Periode“, innerhalb derer eine chronische Arthritis möglicherweise reversibel ist, bei 6 bis 12 Wochen liegt.

Hochdruckexperimente an Calciumsilikatphasen zur Rekonstruktion der Aufstiegsgeschichte von Diamanten

OpenAIRE

Steinberg, Holger Kai

2006-01-01

Ca-Silikate als natürliche Einschlüsse in Diamanten sind so extrem selten und bislang wenig untersucht, daß der Weg, sie synthetisch herzustellen, um entsprechende Analysen durchführen zu können, gerechtfertigt wird. Um die Veränderungen über einen großen Druckbereich bis zu Bedingungen, die dem Unteren Erdmantel entsprechen, durchführen zu können, wurde ein neues Hochdrucklabor mit einer Multi-Anvil-Presse aufgebaut. In dieses Labor sind viele Erfahrungen aus eigenen Experimenten und aus and...

Gasphasen-Emissionskontrolle für Gießereien

DEFF Research Database (Denmark)

Meusinger, Carl

2014-01-01

. Basierend auf den natürlichen Reinigungsprozessen der Atmosphäre werden Schadstoffe in Partikel umgewandelt und dann elektrostatisch gefiltert. Eine Testreihe bei einer großen deutschen Gießerei im Saargebiet zeigt dass die Konzentrationen von Benzol um bis zu 90 % reduziert werden und die Konzen- trationen...... von anderen Kohlenwasserstoffen in der Abluft über mehrere Tage hinweg um mehr als 80 % reduziert werden. Es hat sich erwiesen, dass die neue Technologie unter den Real- bedingungen einer laufenden Gießerei Benzolkonzentrationen regelbar minimieren kann....

Rezension zu: Sabine Hark, Paula-Irene Villa (Hg.: Anti-Genderismus. Sexualität und Geschlecht als Schauplätze aktueller politischer Auseinandersetzungen. Bielefeld: transcript Verlag 2015.

Directory of Open Access Journals (Sweden)

Christian Hammermann

2017-05-01

Full Text Available Der von Sabine Hark und Paula-Irene Villa herausgegebene Sammelband analysiert die öffentlichen Angriffe auf Gender Studies und Gender Mainstreaming, die unter dem Begriff Anti-Genderismus auftreten und verhandelt werden. Die einzelnen Beiträge untersuchen Themen und Methoden des anti-genderistischen Diskurses, seine Akteur_Innen und gesellschaftlichen Bedingung. Dabei entwerfen sie ein sehr kohärentes Porträt dieser Politiken, das allerdings von einer weiteren Untersuchung der gesellschaftlichen Bedingungen und intersektionalen Bezüge zu anderen Ressentiments profitieren würde.

Devising a measuring system for the determination of diffusion coefficients in biofilm; Entwicklung eines Messsystems zur Bestimmung von Diffusionskoeffizienten im Biofilm

Energy Technology Data Exchange (ETDEWEB)

Berndt, K. [Fachhochschule Magdeburg (Germany). Fachbereich Chemie; Horn, H. [Fachhochschule Magdeburg (Germany). Hydro- und Abfallchemie

1999-07-01

The diffusion coefficient of a substrate in a biofilm is an important parameter for simulating mass turnover and transport in biofilm systems. The described method permits determining the diffusion coefficients in biofilms grown under defined substrate and hydrodynamic conditions in a laboratory reactor. (orig.) [German] Der Diffusionskoeffizient des Substrats in Biofilmen ist ein wichtiger Parameter fuer die Simulation von Stoffwechsel und -transport in Biofilmsystemen. Die dargestellte Methode erlaubt die Bestimmung des Diffusionskoeffizienten in Biofilmen, die unter definierten Substrat- und hydrodynamischen Bedingungen in einem Laborreaktor gewachsen sind. (orig.)

Exact solutions for scalar field cosmology in f(R) gravity

Science.gov (United States)

Maharaj, S. D.; Goswami, R.; Chervon, S. V.; Nikolaev, A. V.

2017-09-01

We study scalar field FLRW cosmology in the content of f(R) gravity. Our consideration is restricted to the spatially flat Friedmann universe. We derived the general evolution equations of the model, and showed that the scalar field equation is automatically satisfied for any form of the f(R) function. We also derived representations for kinetic and potential energies, as well as for the acceleration in terms of the Hubble parameter and the form of the f(R) function. Next we found the exact cosmological solutions in modified gravity without specifying the f(R) function. With negligible acceleration of the scalar curvature, we found that the de Sitter inflationary solution is always attained. Also we obtained new solutions with special restrictions on the integration constants. These solutions contain oscillating, accelerating, decelerating and even contracting universes. For further investigation, we selected special cases which can be applied with early or late inflation. We also found exact solutions for the general case for the model with negligible acceleration of the scalar curvature in terms of special Airy functions. Using initial conditions which represent the universe at the present epoch, we determined the constants of integration. This allows for the comparison of the scale factor in the new solutions with that for current stage of the universe evolution in the ΛCDM model.

First observation of high spin states and isomeric decay in 210Fr

International Nuclear Information System (INIS)

Kanjilal, D.; Saha, S.; Bhattacharya, S.; Goswami, A.; Kshetri, R.; Raut, R.; Muralithar, S.; Singh, R. P.; Mukherjee, G.; Mukherjee, B.

2011-01-01

The first observation of the prompt and the delayed γ transitions involving the high spin states in 210 Fr is reported. The decay of the high spin states and the isomeric levels of 210 Fr, identified for the first time from the known sequence of low-lying transitions found earlier in the α decay of 214 Ac, were studied. High spin states of the doubly-odd 210 Fr, which were produced by the fusion evaporation reaction 197 Au ( 16 O, xn) 213-x Fr, were populated and the subsequent emitted γ rays were detected through the high-sensitivity germanium clover detector array INGA. The level scheme up to yrast levels of 5.3 MeV excitation energy and ∼20(ℎ/2π) angular momentum could be established for the first time through γγ, γγΔT coincidence, and DCO ratio measurements. A new low-lying isomeric transition at E γ = 203(2) keV was observed. The half-life was measured to be T 1/2 = 41(2) ns. The measured half-life was compared with the corresponding single-particle estimate, based on the level scheme obtained from the experiment.

Stellar equilibrium configurations of white dwarfs in the f(R, T) gravity

Energy Technology Data Exchange (ETDEWEB)

Carvalho, G.A.; Moraes, P.H.R.S.; Marinho, R.M.; Malheiro, M. [Instituto Tecnologico de Aeronautica, Departamento de Fisica, Sao Jose dos Campos, SP (Brazil); Lobato, R.V. [Instituto Tecnologico de Aeronautica, Departamento de Fisica, Sao Jose dos Campos, SP (Brazil); Sapienza Universita di Roma, Dipartimento di Fisica, Rome (Italy); ICRANet, Pescara (Italy); Arbanil, Jose D.V. [Universidad Privada del Norte, Departamento de Ciencias, Lima (Peru); Otoniel, E. [Universidade Federal do Cariri, Instituto de Formacao de Professores, Brejo Santo, CE (Brazil)

2017-12-15

In this work we investigate the equilibrium configurations of white dwarfs in a modified gravity theory, namely, f(R, T) gravity, for which R and T stand for the Ricci scalar and trace of the energy-momentum tensor, respectively. Considering the functional form f(R, T) = R+2λT, with λ being a constant, we obtain the hydrostatic equilibrium equation for the theory. Some physical properties of white dwarfs, such as: mass, radius, pressure and energy density, as well as their dependence on the parameter λ are derived. More massive and larger white dwarfs are found for negative values of λ when it decreases. The equilibrium configurations predict a maximum mass limit for white dwarfs slightly above the Chandrasekhar limit, with larger radii and lower central densities when compared to standard gravity outcomes. The most important effect of f(R, T) theory for massive white dwarfs is the increase of the radius in comparison with GR and also f(R) results. By comparing our results with some observational data of massive white dwarfs we also find a lower limit for λ, namely, λ > -3 x 10{sup -4}. (orig.)

Meeting of the Technical Working Group on Fast Reactors (TWG-FR) (39th annual meeting). Working material

Energy Technology Data Exchange (ETDEWEB)

NONE

2007-07-01

The 39th Annual Meeting of the Technical Working Group on Fast Reactors (TWG FR) was held from 15-19 May 2006 in Beijing, China, at the invitation of the China Institute of Atomic Energy (CIAEA). The meeting was attended by TWG-FR Members and Advisers from the following Member States (MS): Belgium (observer), Brazil, China, France, Germany, India, Italy, Japan, the Republic of Kazakhstan, the Republic of Korea, the Russian Federation, Sweden (observer), the United Kingdom, and the United States. Belarus, Switzerland, the European Commission, and OECD/NEA were unable to participate. Moreover, Prof. Carlo Rubbia, CERN director general emeritus, participated, upon IAEA invitation, in the meeting as distinguished scientist and IAEA expert. Mr. S.C. Chetal, from India (Indira Gandhi Centre for Atomic Research, IGCAR), was appointed chairman. The objectives of the meeting were to: - Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); - Review the progress since the 38th TWG-FR Annual Meeting, including the status of the actions; - Consider meeting arrangements for 2006 and 2007; - Reviewed the Agency's ongoing information exchange and co-ordinated research activities in the technical fields relevant to the TWG-FR (FRs and ADS), as well as co-ordination of the TWG-FR's activities with other organizations; - Discuss future joint activities in view of the Agency's Programme and Budget Cycle 2008-2009 (and beyond)

100-FR-3 groundwater/soil gas supplemental limited field investigation report

International Nuclear Information System (INIS)

1996-04-01

In 1993, a Limited Field Investigation (LFI) was conducted for the 100-FR-3 Operable Unit which identified trichloroethylene (TCE) as a contaminant of potential concern (COPC) (DOE-RL 1994). In groundwater samples collected for the LFI, TCE was detected in well 199-177-1 at a concentration exceeding the U.S. Environmental Protection Agency (EPA) maximum contaminant level (5 μg/L) and Washington State groundwater criteria (3 μg/L). With the concurrence of the EPA and the Washington State Department of Ecology (Ecology), a supplemental LFI was conducted to determine the extent and potential source of TCE groundwater contamination associated with the 100-FR-3 Operable Unit. This report summarizes the activities and results of the groundwater/soil gas supplemental LFI for the 100-FR-3 Operable Unit. The primary objective of this investigation was to assess the lateral distribution of TCE in shallow (3 to 5 ft below the water table) groundwater associated with the 100-FR-3 Operable Unit. The second objective was to assess soil gas (3 to 5 concentrations in the study area in an attempt to identify potential sources of TCE and develop a correlation between soil gas and groundwater concentrations). Finally, the third objective of the investigation was to refine the site conceptual model

Drip Irrigation Aided Phytoremediation for Removal of TCE FR-om Groundwater

International Nuclear Information System (INIS)

Wilde, E.W.

2003-01-01

Groundwater in D-Area at the Savannah River Site (SRS) is contaminated with trichloroethylene (TCE) and by-products resulting FR-om discharges of this organic solvent during past disposal practices. This contaminated groundwater occurs primarily at depths of 9 meters to 15 meters below ground surface, well below the depths that are typically penetrated by plant roots. The process investigated in this study involved pumping water FR-om the contaminated aquifer and discharging the water into overlying test plots two inches below the surface using drip irrigation. The field treatability study was conducted FR-om 8/31/00 to 4/18/02 using six 0.08 hectare test plots, two each containing pines, cottonwoods, and no vegetation (controls). The primary objective was to determine the overall effectiveness of the process for TCE removal and to determine the principal biotic and abiotic pathways for its removal. Results demonstrated that the process provides a viable method to remove TCE-contaminated groundwater. The data clearly showed that the presence of trees reduced volatilization of TCE FR-om the drip irrigation system to the atmosphere. Influent groundwater TCE concentrations averaging 89 mg/L were reduced to non-detectable levels (less than 5 mg/L) within the upper two feet of soil (rhizosphere)

Functional genomics indicates yeast requires Golgi/ER transport, chromatin remodeling, and DNA repair for low dose DMSO tolerance

Directory of Open Access Journals (Sweden)

Brandon David Gaytán

2013-08-01

Full Text Available Dimethyl sulfoxide (DMSO is frequently utilized as a solvent in toxicological and pharmaceutical investigations. It is therefore important to establish the cellular and molecular targets of DMSO in order to differentiate its intrinsic effects from those elicited by a compound of interest. We performed a genome-wide functional screen in Saccharomyces cerevisiae to identify deletion mutants exhibiting sensitivity to 1% DMSO, a concentration standard to yeast chemical profiling studies. We report that mutants defective in Golgi/ER transport are sensitive to DMSO, including those lacking components of the conserved oligomeric Golgi (COG complex. Moreover, strains deleted for members of the SWR1 histone exchange complex are hypersensitive to DMSO, with additional chromatin remodeling mutants displaying a range of growth defects. We also identify DNA repair genes important for DMSO tolerance. Finally, we demonstrate that overexpression of histone H2A.Z, which replaces chromatin-associated histone H2A in a SWR1-catalyzed reaction, confers resistance to DMSO. Many yeast genes described in this study have homologs in more complex organisms, and the data provided is applicable to future investigations into the cellular and molecular mechanisms of DMSO toxicity.

Deciphering the role of CA1 inhibitory circuits in sharp wave-ripple complexes.

Science.gov (United States)

Cutsuridis, Vassilis; Taxidis, Jiannis

2013-01-01

Sharp wave-ripples (SWRs) are population oscillatory patterns in hippocampal LFPs during deep sleep and immobility, involved in the replay of memories acquired during wakefulness. SWRs have been extensively studied, but their exact generation mechanism is still unknown. A computational model has suggested that fast perisomatic inhibition may generate the high frequency ripples (~200 Hz). Another model showed how replay of memories can be controlled by various classes of inhibitory interneurons targeting specific parts of pyramidal cells (PC) and firing at particular SWR phases. Optogenetic studies revealed new roles for interneuronal classes and rich dynamic interplays between them, shedding new light in their potential role in SWRs. Here, we integrate these findings in a conceptual model of how dendritic and somatic inhibition may collectively contribute to the SWR generation. We suggest that sharp wave excitation and basket cell (BC) recurrent inhibition synchronises BC spiking in ripple frequencies. This rhythm is imposed on bistratified cells which prevent pyramidal bursting. Axo-axonic and stratum lacunosum/moleculare interneurons are silenced by inhibitory inputs originating in the medial septum. PCs receiving rippling inhibition in both dendritic and perisomatic areas and excitation in their apical dendrites, exhibit sparse ripple phase-locked spiking.

75 FR 7150 - Sunshine Act Meetings

Science.gov (United States)

2010-02-17

....3, 515.21, and 520.3--Request for Extension of Time. Contact Person for More Information: Rachel Dickon, Assistant Secretary, (202) 523-5725. Rachel Dickon, Assistant Secretary. [FR Doc. 2010-3063 Filed...

Geschichtswissenschaftliche Perspektiven der Frühneuzeitforschung

OpenAIRE

Burkhardt, Johannes

2010-01-01

Geschichtswissenschaftliche Perspektiven der Frühneuzeitforschung. - In: Macht und Recht / Ulrich Lappenküper ... (Hrsg.). - Paderborn u.a. : Schöningh, 2010. - S. 33-51. - (Otto-von-Bismarck-Stiftung: Wissenschaftliche Reihe ; 13)

77 FR 23793 - Agency Information Collection Activities; Extension of a Currently-Approved Information...

Science.gov (United States)

2012-04-20

... Statistics on September 30, 1998 (63 FR 52192). Pursuant to this authority, the BTS, now part of the Research... transferred the responsibility for the F&OS program from BTS, to FMCSA (69 FR 51009). On August 10, 2006 (71... financial and statistical reporting regulations of BTS that were formerly located at chapter XI of title 49...

77 FR 65314 - Missouri: Final Authorization of State Hazardous Waste Management Program Revisions

Science.gov (United States)

2012-10-26

... application, subject to the limitations of the Hazardous and Solid Waste Amendments of 1984 (HSWA). New... RCRA Cluster XI NESHAPS: Final Standards for 65 FR 42292, 07/10/ 10 CSR 25- Hazardous Air Pollutants 00... 66 FR 35087, 7/ *10 CSR 25- Checklist 188. 03/01. 7.7270(2)(D)6 is excluded from the authorization...

Physical attributes of anisotropic compact stars in f(R, G) gravity

Energy Technology Data Exchange (ETDEWEB)

Shamir, M.F.; Zia, Saeeda [National University of Computer and Emerging Sciences, Department of Sciences and Humanities, Lahore (Pakistan)

2017-07-15

Modified gravity is one of the potential candidates to explain the accelerated expansion of the universe. Current study highlights the materialization of anisotropic compact stars in the context of f(R, G) theory of gravity. In particular, to gain insight in the physical behavior of three stars namely, Her X1, SAX J 1808-3658 and 4U 1820-30, energy density, and radial and tangential pressures are calculated. The f(R, G) gravity model is split into a Starobinsky like f(R) model and a power law f(G) model. The main feature of the work is a 3-dimensional graphical analysis in which, anisotropic measurements, energy conditions and stability attributes of these stars are discussed. It is shown that all three stars behave as usual for positive values of the f(G) model parameter n. (orig.)

78 FR 62988 - Energy Conservation Program: Energy Conservation Standards for Certain Consumer Products and...

Science.gov (United States)

2013-10-23

....gov/cases/ee/tee0010.pdf ) (last accessed September 2010); 76 FR 37408, 37514, 37541-42 (June 27, 2011... rulemaking process. 68 FR 7990. DOE has made its procedures and policies available on the Office of the... requires agencies to examine the constitutional and statutory authority supporting any action that would...

76 FR 27898 - Approval and Promulgation of Air Quality Implementation Plans; Virginia; Prevention of...

Science.gov (United States)

2011-05-13

... material, such as copyrighted material, is not placed on the Internet and will be publicly available only...] applicable to a previously unregulated pollutant.'' Id. at 67 FR 80240 and 67 FR 80264. Among other things... the assessment process; (3) that demonstrate a clear, imminent and substantial danger to the public...

Dependence of the half-life of ²²¹Fr on the implantation environment

DEFF Research Database (Denmark)

Olaizola, B.; Fraile, L.M.; Riisager, Karsten

2010-01-01

The possible dependence of the half-life of 221Fr on the solid-state environment has been investigated by the simultaneous measurement of implanted 221Fr ions in an insulator (Si) and a metallic substrate (Au) at the ISOLDE facility at CERN. Our results indicate that, if existing, the difference ...

[Fortieth Annual] Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Working Material

International Nuclear Information System (INIS)

2008-01-01

The objectives of the meeting were to: - Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); - Review the progress since the 39th TWG-FR Annual Meeting, including the status of the actions; - Consider meeting arrangements for 2007, 2008 and 2009; - Review the Agency’s ongoing information exchange and co-ordinated research activities in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations; - Discuss future joint activities in view of the Agency’s Programme and Budget Cycle 2008–2009 (and beyond)

75 FR 22689 - Fiscal Service

Science.gov (United States)

2010-04-29

... the U.S. Department of the Treasury, Financial Management Service, Financial Accounting and Services..., 2010. Sandra Paylor-Sanders, Acting Director, Financial Accounting and Services Division. [FR Doc. 2010... Bonding Company AGENCY: Financial Management Service, Fiscal Service, Department of the Treasury. ACTION...

76 FR 57845 - Approval of Air Quality Implementation Plans; California; San Joaquin Valley; Attainment Plan for...

Science.gov (United States)

2011-09-16

... Stationary Gas Turbines....... 4703 3rd Q--2007 September 2007 74 FR 53888 (October 21, 2009). S-IND-24 Soil Decontamination......... 4651 3rd Q--2007 September 2007 74 FR 52894 (October 15, 2009). S-IND-6 Polystyrene Foam...

77 FR 34218 - Clothing Allowance; Correction

Science.gov (United States)

2012-06-11

..., Radioactive materials, Veterans, Vietnam. Approved: June 6, 2012. Robert C. McFetridge, Direc tor, Regulation... distinct type''. [FR Doc. 2012-14108 Filed 6-8-12; 8:45 am] BILLING CODE 8320-01-P ...

76 FR 17459 - Sunshine Act Meeting

Science.gov (United States)

2011-03-29

... available in alternate formats to accommodate visual and hearing impairments. Individuals who have a disability and need an accommodation to attend the meeting may notify Katherine Ward, at (202) 295-1500 or FR...

75 FR 30915 - Computer Matching Program Between the Department of Veterans Affairs (VA) and the Department of...

Science.gov (United States)

2010-06-02

... FR 29275 (June 19, 2009), and last amended at 75 FR (April 27, 2010). e. Inclusive dates of the...:30 p.m., Monday through Friday (except holidays). Please call (202) 461-4902 for an appointment...

75 FR 4408 - Notice of Public Meeting

Science.gov (United States)

2010-01-27

..., pharmaceutical companies, health care delivery organizations, agricultural producers, consumer groups, and other...: January 20, 2010. Tanja Popovic, Chief Science Officer, Centers for Disease Control and Prevention. [FR...

76 FR 40648 - Safety Enhancements Part 139, Certification of Airports; Reopening of Comment Period

Science.gov (United States)

2011-07-11

... that was published on February 1, 2011. In that document, the FAA proposed several safety enhancements...-0247; Notice No. 11-01] RIN 2120-AJ70 Safety Enhancements Part 139, Certification of Airports... comment period for the NPRM published on February 1, 2011 (76 FR 5510) and reopened (76 FR 20570) April 13...

76 FR 67229 - Governors' Designees Receiving Advance Notification of Transportation of Certain Shipments of...

Science.gov (United States)

2011-10-31

... of Transportation of Certain Shipments of Nuclear Waste and Spent Fuel On January 6, 1982 (47 FR 596 and 47 FR 600), the U.S. Nuclear Regulatory Commission (NRC) published in the Federal Register final... Avenue, Fairbanks, AK 99709, (907) 451-2172, 24 hours: (907) 457- 1421, Cell: (907) 347-7779, (907) 451...

77 FR 38859 - Governors' Designees Receiving Advance Notification of Transportation of Certain Shipments of...

Science.gov (United States)

2012-06-29

... of Transportation of Certain Shipments of Nuclear Waste and Spent Fuel On January 6, 1982 (47 FR 596 and 47 FR 600), the U.S. Nuclear Regulatory Commission (NRC) published in the Federal Register final... Conservation, State of Alaska, 555 Cordova Street, Anchorage, AK 99501, (907) 269- 1099, 24 hours: (907) 457...

76 FR 22817 - Approval and Promulgation of Air Quality Implementation Plans; South Carolina; Update to...

Science.gov (United States)

2011-04-25

... Manufacturing'' 3. ``Section III--Kraft Pulp and Paper Manufacturing Plants'' 4. ``Section IV--Portland Cement Manufacturing'' 5. ``Section VI--Hot Mix Asphalt Manufacturing'' 6. ``Section VII--Metal Refining;'' [[Page... 54 FR 40659 Manufacturing Plants. Section IV Portland Cement 2/28/1986 2/17/1987 52 FR 4772...

76 FR 12054 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results...

Science.gov (United States)

2011-03-04

... Paper Products From the People's Republic of China, 71 FR 53079, 53082 (September 8, 2006); Final...: Petroleum Wax Candles from the People's Republic of China, 72 FR 52355, 52356 (September 13, 2007). In... Value and Negative Final Determination of Critical Circumstances: Certain Frozen and Canned Warmwater...

75 FR 19613 - First Administrative Review of Sodium Hexametaphosphate from the People's Republic of China...

Science.gov (United States)

2010-04-15

... Critical Circumstances, In Part: Certain Lined Paper Products from the People's Republic of China, 71 FR... Administrative Review: Petroleum Wax Candles from the People's Republic of China, 72 FR 52355, 52356 (September... Preliminary Determination of Sales at Less Than Fair Value, Negative Preliminary Determination of Critical...

Keys to evaluating and comparing FR fabric

Energy Technology Data Exchange (ETDEWEB)

Enright, M. [Westex Inc., Chicago, IL (United States)

2008-07-15

Exposure to electric arc flashes can result in the ignition of clothing, and can kill people at distances of 10 feet. This article discussed recent standards and regulations passed to ensure that employees working on or near energized electrical equipment use protective clothing made of flame resistant (FR) fabrics. The codes will require companies to comply with CSA Standard Z462 and determine which protective garments and FR fabrics are available. Employers will also be required to perform flash hazard analyses in order to determine the potential energy of hazards. Flash hazard analyses are typically performed by calculating the potential incident energy of equipment. Protective clothing is required to meet corresponding hazard risk categories. The ASTM F1506 Standard was developed to provide minimum specifications for protective clothing. The standard requires that the fabric used in protective garments must be resistant to arc flashes of varying energy levels. Many companies are simplifying compliance to the standards by implementing uniform programs that meet the highest requirements of the Standards. Arc flash suits are then made available for tasks involving higher energy level equipment. It was concluded that it is important to identify potential hazards and obtain industry consensus standards before investing in FR protective clothing. 2 figs.

78 FR 44247 - Semiannual Regulatory Agenda

Science.gov (United States)

2013-07-23

... published previously a final rule establishing energy conservation standards for ice-cream freezers, self... and to add a test for measuring ice maker energy use. Timetable: Action Date FR Cite NPRM 07/00/13...

Copy number and haplotype variation at the VRN-A1 and central FR-A2 loci are associated with frost tolerance in hexaploid wheat.

Science.gov (United States)

Zhu, Jie; Pearce, Stephen; Burke, Adrienne; See, Deven Robert; Skinner, Daniel Z; Dubcovsky, Jorge; Garland-Campbell, Kimberly

2014-05-01

The interaction between VRN - A1 and FR - A2 largely affect the frost tolerance of hexaploid wheat. Frost tolerance is critical for wheat survival during cold winters. Natural variation for this trait is mainly associated with allelic differences at the VERNALIZATION 1 (VRN1) and FROST RESISTANCE 2 (FR2) loci. VRN1 regulates the transition between vegetative and reproductive stages and FR2, a locus including several tandemly duplicated C-REPEAT BINDING FACTOR (CBF) transcription factors, regulates the expression of Cold-regulated genes. We identified sequence and copy number variation at these two loci among winter and spring wheat varieties and characterized their association with frost tolerance. We identified two FR-A2 haplotypes-'FR-A2-S' and 'FR-A2-T'-distinguished by two insertion/deletions and ten single nucleotide polymorphisms within the CBF-A12 and CBF-A15 genes. Increased copy number of CBF-A14 was frequently associated with the FR-A2-T haplotype and with higher CBF14 transcript levels in response to cold. Factorial ANOVAs revealed significant interactions between VRN1 and FR-A2 for frost tolerance in both winter and spring panels suggesting a crosstalk between vernalization and cold acclimation pathways. The model including these two loci and their interaction explained 32.0 and 20.7 % of the variation in frost tolerance in the winter and spring panels, respectively. The interaction was validated in a winter wheat F 4:5 population segregating for both genes. Increased VRN-A1 copy number was associated with improved frost tolerance among varieties carrying the FR-A2-T allele but not among those carrying the FR-A2-S allele. These results suggest that selection of varieties carrying the FR-A2-T allele and three copies of the recessive vrn-A1 allele would be a good strategy to improve frost tolerance in wheat.

Thermal-Hydraulic Analysis of a Supercritical Water Reactor (SCWR) Core

International Nuclear Information System (INIS)

Kucukboyaci, V.N.; Oriani, L.

2004-01-01

The supercritical water reactor (SCWR) has been the object of interest throughout the nuclear Generation IV community because of its high potential: a simple, direct cycle, compact configuration; elimination of many traditional LWR components, operation at coolant temperatures much higher than traditional LWRs and thus high thermal efficiency. It could be said that the SWR was viewed as the water counterpart to the high temperature gas reactor

77 FR 32178 - Fiscal Service

Science.gov (United States)

2012-05-31

... of the Treasury, Financial Management Service, Financial Accounting and Services Division, Surety... Carrico, Director, Financial Accounting and Services Division. [FR Doc. 2012-13044 Filed 5-30-12; 8:45 am...: Alterra Reinsurance USA, Inc. AGENCY: Financial Management Service, Fiscal Service, Department of the...

75 FR 72815 - Procurement List Proposed Additions

Science.gov (United States)

2010-11-26

... Executive Office for Simulation, Training and Instrumentation (PEO STRI), 12350 Research Parkway, Orlando... Orlando, Orlando, FL. Patricia Briscoe, Deputy Director, Business Operations. [FR Doc. 2010-29753 Filed 11...

78 FR 1832 - Sunshine Act Meeting

Science.gov (United States)

2013-01-09

... be free and open to the public. If you require a translator or interpreter, please notify the... the agency Web site at: www.csb.gov . Dated: January 7, 2013. Rafael Moure-Eraso, Chairperson. [FR Doc...

77 FR 32496 - Notice of Meeting

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2012-06-01

... . For additional information please contact Paloma Adams-Allen at (202) 712-4378 or [email protected] . Dated: May 29, 2012. Paloma Adams-Allen, ACVFA Executive Director (A). [FR Doc. 2012-13351 Filed 5-31-12...

76 FR 31946 - Energy Conservation Program for Certain Industrial Equipment: Publication of the Petition for...

Science.gov (United States)

2011-06-02

... operational characteristics similar to the commercial multi-split products manufactured by Mitsubishi, Samsung... reducing its operating capacity to as little as 10% of its rated capacity. Zone diversity enables AIRSTAGE... 17528, April 9,2007); Samsung (72 FR 71387, Dec. 17, 2007); FUJITSU (72 FR 71383, Dec. 17, 2007); Daikin...

Heat stress and inadequate sanitary facilities at workplaces – an occupational health concern for women?

Science.gov (United States)

Venugopal, Vidhya; Rekha, Shanmugam; Manikandan, Krishnamoorthy; Latha, Perumal Kamalakkannan; Vennila, Viswanathan; Ganesan, Nalini; Kumaravel, Perumal; Chinnadurai, Stephen Jeremiah

2016-01-01

Background Health concerns unique to women are growing with the large number of women venturing into different trades that expose them to hot working environments and inadequate sanitation facilities, common in many Indian workplaces. Objective The study was carried out to investigate the health implications of exposures to hot work environments and inadequate sanitation facilities at their workplaces for women workers. Design A cross-sectional study was conducted with 312 women workers in three occupational sectors in 2014–2015. Quantitative data on heat exposures and physiological heat strain indicators such as core body temperature (CBT), sweat rate (SwR), and urine specific gravity (USG) were collected. A structured questionnaire captured workers perceptions about health impacts of heat stress and inadequate sanitary facilities at the workplace. Results Workplace heat exposures exceeded the threshold limit value for safe manual work for 71% women (Avg. wet bulb globe temperature=30°C±2.3°C) during the study period. Eighty-seven percent of the 200 women who had inadequate/no toilets at their workplaces reported experiencing genitourinary problems periodically. Above normal CBT, SwR, and USG in about 10% women workers indicated heat strain and moderate dehydration that corroborated well with their perceptions. Observed significant associations between high-heat exposures and SwR (t=−2.3879, p=0.0192), inadequate toilet facilities and self-reported adverse heat-related health symptoms (χ2=4.03, p=0.0444), and prevalence of genitourinary issues (χ2=42.92, p=0.0005×10−7) reemphasize that heat is a risk and lack of sanitation facilities is a major health concern for women workers. Conclusions The preliminary evidence suggests that health of women workers is at risk due to occupational heat exposures and inadequate sanitation facilities at many Indian workplaces. Intervention through strong labor policies with gender sensitivity is the need of the hour to

Heat stress and inadequate sanitary facilities at workplaces – an occupational health concern for women?

Directory of Open Access Journals (Sweden)

Vidhya Venugopal

2016-09-01

Full Text Available Background: Health concerns unique to women are growing with the large number of women venturing into different trades that expose them to hot working environments and inadequate sanitation facilities, common in many Indian workplaces. Objective: The study was carried out to investigate the health implications of exposures to hot work environments and inadequate sanitation facilities at their workplaces for women workers. Design: A cross-sectional study was conducted with 312 women workers in three occupational sectors in 2014–2015. Quantitative data on heat exposures and physiological heat strain indicators such as core body temperature (CBT, sweat rate (SwR, and urine specific gravity (USG were collected. A structured questionnaire captured workers perceptions about health impacts of heat stress and inadequate sanitary facilities at the workplace. Results: Workplace heat exposures exceeded the threshold limit value for safe manual work for 71% women (Avg. wet bulb globe temperature=30°C±2.3°C during the study period. Eighty-seven percent of the 200 women who had inadequate/no toilets at their workplaces reported experiencing genitourinary problems periodically. Above normal CBT, SwR, and USG in about 10% women workers indicated heat strain and moderate dehydration that corroborated well with their perceptions. Observed significant associations between high-heat exposures and SwR (t=−2.3879, p=0.0192, inadequate toilet facilities and self-reported adverse heat-related health symptoms (χ2=4.03, p=0.0444, and prevalence of genitourinary issues (χ2=42.92, p=0.0005×10−7 reemphasize that heat is a risk and lack of sanitation facilities is a major health concern for women workers. Conclusions: The preliminary evidence suggests that health of women workers is at risk due to occupational heat exposures and inadequate sanitation facilities at many Indian workplaces. Intervention through strong labor policies with gender sensitivity is the

Heat stress and inadequate sanitary facilities at workplaces - an occupational health concern for women?

Science.gov (United States)

Venugopal, Vidhya; Rekha, Shanmugam; Manikandan, Krishnamoorthy; Latha, Perumal Kamalakkannan; Vennila, Viswanathan; Ganesan, Nalini; Kumaravel, Perumal; Chinnadurai, Stephen Jeremiah

2016-01-01

Health concerns unique to women are growing with the large number of women venturing into different trades that expose them to hot working environments and inadequate sanitation facilities, common in many Indian workplaces. The study was carried out to investigate the health implications of exposures to hot work environments and inadequate sanitation facilities at their workplaces for women workers. A cross-sectional study was conducted with 312 women workers in three occupational sectors in 2014-2015. Quantitative data on heat exposures and physiological heat strain indicators such as core body temperature (CBT), sweat rate (SwR), and urine specific gravity (USG) were collected. A structured questionnaire captured workers perceptions about health impacts of heat stress and inadequate sanitary facilities at the workplace. Workplace heat exposures exceeded the threshold limit value for safe manual work for 71% women (Avg. wet bulb globe temperature=30°C±2.3°C) during the study period. Eighty-seven percent of the 200 women who had inadequate/no toilets at their workplaces reported experiencing genitourinary problems periodically. Above normal CBT, SwR, and USG in about 10% women workers indicated heat strain and moderate dehydration that corroborated well with their perceptions. Observed significant associations between high-heat exposures and SwR (t=-2.3879, p=0.0192), inadequate toilet facilities and self-reported adverse heat-related health symptoms (χ (2)=4.03, p=0.0444), and prevalence of genitourinary issues (χ (2)=42.92, p=0.0005×10(-7)) reemphasize that heat is a risk and lack of sanitation facilities is a major health concern for women workers. The preliminary evidence suggests that health of women workers is at risk due to occupational heat exposures and inadequate sanitation facilities at many Indian workplaces. Intervention through strong labor policies with gender sensitivity is the need of the hour to empower women, avert further health risks, and

Roof strength and injury risk in rollover crashes of passenger cars.

Science.gov (United States)

Brumbelow, Matthew L; Teoh, Eric R

2009-12-01

A 2009 study by the Insurance Institute for Highway Safety found that midsize SUVs with stronger roofs, as measured in quasi-static tests, had lower risk of ejection and lower risk of injury for nonejected drivers. The objective of the present study was to determine whether a similar association exists for other vehicle groups. Twelve small passenger cars were evaluated according to Federal Motor Vehicle Safety Standard 216 test conditions. Crash databases in 14 states provided more than 20,000 single-vehicle rollover crashes involving these vehicles. Logistic regression analyses were used to evaluate the effect of roof strength on the rate of driver injury while assessing and controlling for the effects of driver age, vehicle stability, state, and other factors where necessary. Small cars with stronger roofs had lower overall rates of serious injury, lower rates of ejection, and lower rates of injury for nonejected drivers. Although the effect on ejection was somewhat smaller for cars than for SUVs, the overall pattern of injury results was consistent. For roof strength-to-weight ratio measured within 5 in. (SWR(5)), a one-unit increase (e.g., from 2.0 to 3.0) was associated with a 22 percent reduction in risk of incapacitating or fatal driver injury in single-vehicle rollovers. This compares with a 24 percent reduction estimated for a similar change in roof strength among midsize SUVs. The association between vehicle roof strength and occupant injury risk in rollover crashes appears robust across different vehicle groups and across roof SWR(5) values, varying from just more than 1.5 to just less than 4.0. If roofs were to increase in strength by one SWR(5), a 20-25 percent reduction in risk of serious injury in rollovers would be expected. Still, even if all vehicle roofs were as strong as the strongest roof measured, many rollover injuries still would occur, indicating the need for additional research and countermeasures.

76 FR 48874 - Notice of Meetings; Correction

Science.gov (United States)

2011-08-09

... Advisory Committees (Advisory Committee for Women's Services, and the Tribal Technical Advisory Committee... Workplace Programs, Substance Abuse and Mental Health Services Administration. [FR Doc. 2011-20026 Filed 8-8...

75 FR 42470 - Nebraska Disaster #NE-00038

Science.gov (United States)

2010-07-21

..., Greeley, Harlan, Hayes, Holt, Howard, Keya Paha, Knox, Lincoln, Logan, Loup, Madison, Mcpherson, Morrill... and 59008) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc. 2010-17778 Filed...

75 FR 33355 - Sunshine Act Meeting

Science.gov (United States)

2010-06-11

.... 2. Consider and act on revisions to the LSC Accounting Guide for LSC Recipients. 3. Public comment.... Batie, Corporate Secretary. [FR Doc. 2010-14171 Filed 6-9-10; 4:15 pm] BILLING CODE 7050-01-P ...

Forty-Second Meeting of the Technical Working Group on Fast Reactors (TWG-FR). Working Material

International Nuclear Information System (INIS)

2009-01-01

The objectives of the meeting were to: - Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); - Review the progress since the 41st TWG-FR Annual Meeting, including the status of the actions; - Consider topical technical meetings meeting arrangements for 2009, 2010, 2011 and beyond; - Review the IAEA’s ongoing information exchange and coordinated research activities in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives; - Discuss future joint activities in view of IAEA’s Programme and Budget Cycles beyond 2010-2011

78 FR 73884 - Notice Pursuant to the National Cooperative Research and Production Act of 1993; National...

Science.gov (United States)

2013-12-09

..., Norman, OK; Helicon Chemical Company LLC, Orlando, FL; Lewis Machine & Tool Company, Milan, IL; Lund..., Blackhawk Management, Houston, TX; Blue Juice, Inc., San Rafael, CA; Engineering and Management Executives... FR 52787). Patricia A. Brink, Director of Civil Enforcement, Antitrust Division. [FR Doc. 2013-29272...

77 FR 24459 - Stainless Steel Butt-Weld Pipe Fittings From Italy: Final Results of Antidumping Duty...

Science.gov (United States)

2012-04-24

....g., Magnesium Metal From the Russian Federation: Preliminary Results of Antidumping Duty Administrative Review, 75 FR 26922 (May 13, 2010), unchanged in Magnesium Metal From the Russian Federation..., Malaysia, and the Philippines, 66 FR 11257, 11258 (February, 23, 2001). We intend to issue assessment...

78 FR 8185 - Endangered and Threatened Wildlife and Plants; Initiation of 5-Year Status Reviews of 44 Species...

Science.gov (United States)

2013-02-05

.... 04/1994. Haha Cyanea Endangered U.S.A (HI)....... 59 FR 10305; 03/ hamatiflora ssp. 04/1994. carlsonii. Haha Cyanea shipmanii. Endangered U.S.A (HI)....... 59 FR 10305; 03/ 04/1994. Asplenium-leaved...

77 FR 9655 - Mobility Fund Phase I Auction Updated List of Potentially Eligible Census Blocks

Science.gov (United States)

2012-02-17

... FEDERAL COMMUNICATIONS COMMISSION [AU Docket No. 12-25; DA 12-187] Mobility Fund Phase I Auction.... DATES: Pursuant to the Auction 901 (Mobility Fund Phase I) Comment Public Notice, 77 FR 7152, February... 9, 2012. ADDRESSES: Pursuant to the Auction 901 (Mobility Fund Phase I) Comment Public Notice, 77 FR...

76 FR 33786 - Affirmative Decisions on Petitions for Modification Granted in Whole or in Part

Science.gov (United States)

2011-06-09

... application, processing, and disposition of petitions for modification. This Federal Register Notice notifies.... No. 36-05018, located in Greene County, Pennsylvania. Regulation Affected: 30 CFR 75.1700 (Oil and... Affected: 30 CFR 75.1700 (Oil and gas wells). Docket Number: M-2009-023-C. FR Notice: 74 FR 67915 (December...

78 FR 49773 - Affirmative Decisions on Petitions for Modification Granted in Whole or in Part

Science.gov (United States)

2013-08-15

... govern the application, processing, and disposition of petitions for modification. This Federal Register..., located in Taylor County, West Virginia. Regulation Affected: 30 CFR 75.1700 (Oil and gas wells). Docket.... Regulation Affected: 30 CFR 75.1700 (Oil and gas wells). Docket Number: M-2012-008-M. FR Notice: 77 FR 59674...

78 FR 15664 - Approval and Promulgation of Air Quality Implementation Plans; New Mexico; Interstate Transport...

Science.gov (United States)

2013-03-12

... Promulgation of Air Quality Implementation Plans; New Mexico; Interstate Transport of Fine Particulate Matter... (August 8, 2011, 76 FR 48208). The Transport Rule was intended to replace the earlier Clean Air Interstate..., 2005); and Transport Rule or Cross-State Air Pollution Rule, 76 FR 48208 (August 8, 2011). \\4\\ CAIR...

75 FR 4383 - Pesticide Products: Registration Applications

Science.gov (United States)

2010-01-27

..., Biopesticides and Pollution Prevention Division (7511P), Office of Pesticide Programs, Environmental Protection..., Biopesticides and Pollution Prevention Division, Office of Pesticide Programs. [FR Doc. 2010-1582 Filed 1-26-10...

76 FR 4266 - New Mexico Regulatory Program

Science.gov (United States)

2011-01-25

... Requirements, Permit Eligibility, definitions of Ownership and Control, the AVS, Alternative Enforcement (65 FR 79582); and October 28, 1994, Use of the AVS in Surface Coal Mining Reclamation Permit Approval...

Influence of tensides and lipophilic substrates on the biological availability of polycyclic aromatic hydrocarbons (PAHs); Ueber dem Einfluss von Tensiden und lipophilen Substraten auf die Bioverfuegbarkeit von polyzyklischen aromatischen Kohlenwasserstoffen (PAK)

Energy Technology Data Exchange (ETDEWEB)

Soeder, C.J. von; Kleespies, M; Eschner, C; Webb, L; Groeneweg, J [Forschungszentrum Juelich GmbH (Germany). IBT-3/ICG-6

1998-12-31

The objects of the study were as follows: isolation and characterization of PAH-degrading micro-organisms from lysimeters; tests relating to the experimental simulation of the conditions permitting pollutant degradation in soil; investigation of the influence of tensides and other dissolved organic compounds on the biological availability and degradation of PAHs. (orig./SR) [Deutsch] - Isolierung und Charakterisierung PAK-abbauender Mikroorganismen aus Lysimetern; Versuche zur experimentellen Simulation der Bedingungen, unter denen der Abbau von Schadstoffen im Boden erfolgt. - Untersuchung des Einflusses von Tensiden und anderen geloesten organischen Verbindungen auf Bioverfuegbarkeit und Abbau von PAK. (orig./SR)

Einfluss von abiotischen Faktoren auf Wuchs und Scopolamin-Biosynthese in Duboisia myoporoides.

Directory of Open Access Journals (Sweden)

Ullrich, Sophie Friederike

2014-09-01

Full Text Available Duboisia ist eine in Australien beheimatete Pflanze aus der Familie der Nachtschattengewächse, die Tropanalkaloide als sekundäre Pflanzeninhaltsstoffe enthält, deren quantitativ und ökonomisch bedeutsamstes Scopolamin ist. Um neue Erkenntnisse hinsichtlich des Einflusses abiotischer Faktoren auf Wuchs und Scopolamin-Biosynthese zu gewinnen, wurden Pflanzen der Art Duboisia myoporoides in Hydrokultur in Klimakammern unter streng kontrollierten Bedingungen angebaut (kalibrierte Einstellungen für Beleuchtungsdauer, Lichtintensität und Temperatur. Wichtige Messgrößen stellten dabei Biomasse und Alkaloidgehalt dar, letzterer gemessen mittels UHPLC und LC-MS.

Influence of tensides and lipophilic substrates on the biological availability of polycyclic aromatic hydrocarbons (PAHs); Ueber dem Einfluss von Tensiden und lipophilen Substraten auf die Bioverfuegbarkeit von polyzyklischen aromatischen Kohlenwasserstoffen (PAK)

Energy Technology Data Exchange (ETDEWEB)

Soeder, C.J. von; Kleespies, M.; Eschner, C.; Webb, L.; Groeneweg, J. [Forschungszentrum Juelich GmbH (Germany). IBT-3/ICG-6

1997-12-31

The objects of the study were as follows: isolation and characterization of PAH-degrading micro-organisms from lysimeters; tests relating to the experimental simulation of the conditions permitting pollutant degradation in soil; investigation of the influence of tensides and other dissolved organic compounds on the biological availability and degradation of PAHs. (orig./SR) [Deutsch] - Isolierung und Charakterisierung PAK-abbauender Mikroorganismen aus Lysimetern; Versuche zur experimentellen Simulation der Bedingungen, unter denen der Abbau von Schadstoffen im Boden erfolgt. - Untersuchung des Einflusses von Tensiden und anderen geloesten organischen Verbindungen auf Bioverfuegbarkeit und Abbau von PAK. (orig./SR)

Thermodynamic laws for generalized f(R) gravity with curvature-matter coupling

International Nuclear Information System (INIS)

Wu Yabo; Zhao Yueyue; Cai Ronggen; Lu Jianbo; Lu Junwang; Gao Xiaojing

2012-01-01

The first law and the generalized second law (GSL) of thermodynamics for the generalized f(R) gravity with curvature-matter coupling are studied in the spatially homogeneous, isotropic FRW universe. The research results show that the field equations of the generalized f(R) gravity with curvature-matter coupling can be cast to the form of the first law of thermodynamics with the so-called the entropy production terms dS ¯ and the GSL can be given by considering the FRW universe filled only with ordinary matter enclosed by the dynamical apparent horizon with the Hawking temperature. Furthermore, as a concrete example, by utilizing the GSL the constraints on the gravitational model with f 1 (R)=R+αR l and f 2 (R)=R m are also discussed. It is worth noting these results given by us are quite general and can degenerate to the ones in Einstein's general relativity and pure f(R) gravity with non-coupling and non-minimal coupling as special cases. Comparing with the case of Einstein's general relativity, the appearance of the entropy production term dS ¯ in the first law of thermodynamics demonstrates that the horizon thermodynamics is non-equilibrium one for generalized f(R) gravity with curvature-matter coupling, which is consistent with the arguments given in Akbar and Cai (2007) [13] and Eling et al. (2006) [18].

Species of Hypholoma (Fr. P. Kumm. (Strophariaceae, Agaricales in Rio Grande do Sul State, Brazil Espécies de Hypholoma (Fr. P. Kumm. (Strophariaceae, Agaricales no Rio Grande do Sul, Brasil

Directory of Open Access Journals (Sweden)

Vagner Gularte Cortez

2007-09-01

Full Text Available Detailed descriptions, illustrations, discussions and a key for identification of the known species of the genus Hypholoma (Fr. P. Kumm. in Rio Grande do Sul state are presented, as well as a revision of the Hypholoma specimens deposited in the Fungi Rickiani collection. Based on the authors' collections and the herbarium revision, the following species were recognized: H. aurantiacum (Cooke Faus, H. ericaeum (Pers.: Fr. Kühner, and H. subviride (Berk. & M.A. Curtis Dennis.Neste trabalho são apresentadas descrições, ilustrações, discussões e chave de identificação para as espécies do gênero Hypholoma (Fr. P. Kumm. conhecidas no estado do Rio Grande do Sul, além de uma revisão do material de Hypholoma depositado na coleção Fungi Rickiani. A partir das coletas realizadas pelos autores, bem como estudo do material depositado nos principais herbários do estado e do país, verificou-se a ocorrência das seguintes espécies: H. aurantiacum (Cooke Faus, H. ericaeum (Pers.: Fr. Kühner e H. subviride (Berk. & M.A. Curtis Dennis.

Servants of Peitho: Pindar fr.122

Directory of Open Access Journals (Sweden)

Anne Pippin Burnett

2011-03-01

Full Text Available Pindar's skolion fr.122 need not concern temple prostitutes of Aphrodite, but is rather a sympotic celebration of a private person's donation of prostitutes for the enjoyment of a party of men of Corinth.

75 FR 12564 - Issuance of Permits

Science.gov (United States)

2010-03-16

... Privacy Act and Freedom of Information Act, by any party who submits a written request for a copy of such.... University. 225854 Tom S. Smith, Brigham 74 FR 57702; November February 18, 2010 Young University. 9, 2009...

On Analytical Solutions of f(R) Modified Gravity Theories in FLRW Cosmologies

Science.gov (United States)

Domazet, Silvije; Radovanović, Voja; Simonović, Marko; Štefančić, Hrvoje

2013-02-01

A novel analytical method for f(R) modified theories without matter in Friedmann-Lemaitre-Robertson-Walker (FLRW) spacetimes is introduced. The equation of motion for the scale factor in terms of cosmic time is reduced to the equation for the evolution of the Ricci scalar R with the Hubble parameter H. The solution of equation of motion for actions of the form of power law in Ricci scalar R is presented with a detailed elaboration of the action quadratic in R. The reverse use of the introduced method is exemplified in finding functional forms f(R), which leads to specified scale factor functions. The analytical solutions are corroborated by numerical calculations with excellent agreement. Possible further applications to the phases of inflationary expansion and late-time acceleration as well as f(R) theories with radiation are outlined.

Dynamique de fréquentation des grands mammifères dans une ...

African Journals Online (AJOL)

SARAH

31 juil. 2016 ... RÉSUMÉ. Objectifs : Dans le but de connaitre les animaux fréquentant les clairières (ou Baï) forestières au Gabon, une étude sur la fréquentation du Baï de Momba par les grands mammifères a été conduite durant la petite saison des pluies pendant deux mois du 19 février au 13 mars 2012. Méthodologie ...

Late time acceleration of the universe in f(R) gravity model

International Nuclear Information System (INIS)

Mukherjee, Ankan

2014-01-01

In this work, a new way to look at the nature of late time dynamics of the universe for f(R) gravity models using the contracted Bianchi Identity has been proposed. As the Einstein field equations contain derivatives of the curvature scalar R, the contracted Bianchi identity yields a second order nonlinear differential equation in H, the Hubble parameter. This equation is studied for two particular forms of f(R), and the late time behaviour of the model is discussed. (author)

78 FR 69097 - Performance Review Board Members

Science.gov (United States)

2013-11-18

... Michael Etzinger, Executive Officer and Director, Office of Management, Technology and Operations. Janine... Abuse and Mental Health Services Administration. [FR Doc. 2013-27423 Filed 11-15-13; 8:45 am] BILLING...

Studying the highly bent spectra of FR II-type radio galaxies with the KDA EXT model

Science.gov (United States)

Kuligowska, Elżbieta

2018-04-01

Context. The Kaiser, Dennett-Thorpe & Alexander (KDA, 1997, MNRAS, 292, 723) EXT model, that is, the extension of the KDA model of Fanaroff & Riley (FR) II-type source evolution, is applied and confronted with the observational data for selected FR II-type radio sources with significantly aged radio spectra. Aim. A sample of FR II-type radio galaxies with radio spectra strongly bent at their highest frequencies is used for testing the usefulness of the KDA EXT model. Methods: The dynamical evolution of FR II-type sources predicted with the KDA EXT model is briefly presented and discussed. The results are then compared to the ones obtained with the classical KDA approach, assuming the source's continuous injection and self-similarity. Results: The results and corresponding diagrams obtained for the eight sample sources indicate that the KDA EXT model predicts the observed radio spectra significantly better than the best spectral fit provided by the original KDA model.

Development of FR fuel cycle in japan (1) development scope of fuel cycle technology

International Nuclear Information System (INIS)

Nakamura, H.; Funasaka, H.; Namekawa, T.

2008-01-01

A fast reactor (FR) cycle has a potential to realize a sustainable energy supply system that is harmonized with environment by fully recycling both uranium (U) and transuranium (TRU) elements. In Japan, a Feasibility Study on Commercialized FR Cycle Systems (FS) was launched in July 1999, and through two different study phases, a final report was presented in 2006. As a result of FS, a combined system of sodium-cooled FR with mixed-oxide (MOX) fuel, advanced aqueous reprocessing and simplified pelletizing fuel fabrication was considered to be most promising for commercialization. The advanced aqueous reprocessing system, which is called the New Extraction system for TRU recovery (NEXT), consists of a U crystallization process for the bulk of U recovery, a simplified solvent extraction process for residual U, plutonium (Pu) and neptunium (Np) without Pu partitioning and purification, and a process for recovering americium (Am) and curium (Cm) from the raffinate. The ratio of Pu/U concentration in the mother solution after crystallization is adequate for MOX fuel fabrication, and thus complicated powder mixing processes for adjusting Pu content in MOX fuel can be eliminated in the subsequent simplified fuel fabrication system. In this system, lubricant-mixing process can also be eliminated by adopting the advanced technology in which lubricant is coated on the inner surface of a die before fuel powder supply. Such a simplification could help us overcoming the difficulty to treat MA bearing fuel powders in a hot cell. Ministry of Education, Culture, Sports, Science and Technology (MEXT) reviewed these results of FS in 2006 and identified the most promising FR cycle concept proposed in the FS phase II study as a mainline choice for commercialization. According to such a governmental assessment, R and D activities of FR cycle systems were decided to be concentrated mainly to the innovative technology development for the mainline concept. The stage of R and D project was

Stellar configurations in f(R) theories of gravity

International Nuclear Information System (INIS)

Henttunen, K.; Multamaeki, T.; Vilja, I.

2008-01-01

We study stellar configurations and the space-time around them in metric f(R) theories of gravity. In particular, we focus on the polytropic model of the Sun in two specific cases: the f(R)=R-μ 4 /R model and a model with a stabilizing higher order term f(R)=R-μ 4 /R+βR 3 /(3μ 4 ). We show how the stellar configuration in the f(R) theory can, by appropriate initial conditions, be selected to be equal to that described by the Lane-Emden equation and how a simple scaling relation exists between the solutions. We also derive the correct solution analytically near the center of the star in f(R) theory. Previous analytical and numerical results are confirmed, indicating that the space-time around the Sun is incompatible with solar system constraints in the f(R)=R-μ 4 /R model. Numerical work shows that stellar configurations, with a regular metric at the center, lead to γ PPN ≅1/2 outside the star for both models, i.e., the Schwarzschild-de Sitter space-time is not the correct vacuum solution for such configurations. This shows that even when one fine-tunes the initial conditions inside a star such that the mass of the effective scalar in the equivalent scalar-tensor theory is large, γ PPN is still 1/2 outside the star. Conversely, by selecting the Schwarzschild-de Sitter metric as the outside solution, or equivalently setting the mass of the effective scalar to be large outside the star, we find that the stellar configuration is unchanged but the metric is irregular at the center. The possibility of constructing a f(R) theory compatible with the solar system experiments and possible new constraints arising from the radius-mass relation of stellar objects is discussed

78 FR 23162 - Supervision and Regulation Assessments for Bank Holding Companies and Savings and Loan Holding...

Science.gov (United States)

2013-04-18

... bank holding company's Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) forms; \\3... Balance Sheet of the BHC's Consolidated Financial Statements for Bank Holding Companies (FR Y-9C) (OMB No... holding companies with $50 billion or more in total consolidated assets, and nonbank financial companies...

77 FR 31486 - Virginia Regulatory Program

Science.gov (United States)

2012-05-29

... United States Court of Appeals for the District of Columbia Circuit in Nat'l Mining Ass'n v. Kempthorne... Federal VER regulations promulgated by OSM on December 17, 1999 (64 FR 70766-70838). Nat'l Mining Ass'n v...

76 FR 33806 - Tennessee Disaster Number TN-00053

Science.gov (United States)

2011-06-09

... Only): Alabama: Limestone, Madison. Tennessee: Bedford, Franklin, Giles, Marshall, Moore. All other... 59002 and 59008) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc. 2011-14274...

75 FR 51119 - Kentucky Disaster Number KY-00035

Science.gov (United States)

2010-08-18

... Loans): Madison, Mason, Rowan. Contiguous Counties: (Economic Injury Loans Only): Kentucky: Bath... Assistance Numbers 59002 and 59008) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc...

76 FR 35937 - New York Disaster #NY-00105

Science.gov (United States)

2011-06-20

..., Hamilton, Herkimer, Lewis, Madison, Niagara, Oneida, Onondaga, Ontario, Steuben, Tioga, Ulster, Warren... Assistance Numbers 59002 and 59008) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc...

78 FR 71724 - Rail Depreciation Studies

Science.gov (United States)

2013-11-29

... DEPARTMENT OF TRANSPORTATION Surface Transportation Board Rail Depreciation Studies AGENCY: Surface Transportation Board, DOT. ACTION: Notice of OMB Approval of Information Collection. SUMMARY... collection, Rail Depreciation Studies. See 78 FR 18676 (Mar. 27, 2013). This collection, codified at 49 CFR...

77 FR 64837 - Federal Aviation Administration

Science.gov (United States)

2012-10-23

... DEPARTMENT OF TRANSPORTATION Federal Aviation Administration Fourth Meeting: RTCA Special Committee 227, Standards of Navigation Performance AGENCY: Federal Aviation Administration (FAA), U.S... Operations Group, Federal Aviation Administration. [FR Doc. 2012-26034 Filed 10-22-12; 8:45 am] BILLING CODE...

78 FR 41183 - Federal Aviation Administration

Science.gov (United States)

2013-07-09

... DEPARTMENT OF TRANSPORTATION Federal Aviation Administration Meeting: RTCA Program Management Committee AGENCY: Federal Aviation Administration (FAA), U.S. Department of Transportation (DOT). ACTION... Operations Group, Federal Aviation Administration. [FR Doc. 2013-16464 Filed 7-8-13; 8:45 am] BILLING CODE...

Meeting of the Technical Working Group on Fast Reactors (TWG-FR) (41st Annual Meeting). Working Material

International Nuclear Information System (INIS)

2008-01-01

The objectives of the meeting were to: - Exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); - Review the progress since the 40th TWG-FR Annual Meeting, including the status of the actions; - Consider meeting arrangements for 2008, 2009, 2010 and beyond; - Review the IAEA’s ongoing information exchange and coordinated research activities in the technical fields relevant to the TWG-FR (FRs and ADS), as well as coordination of the TWG-FR’s activities with other organizations and international initiatives; - Discuss future joint activities in view of IAEA’s Programme and Budget Cycles beyond 2008-2009

Intensive neutron source based on powerful electron linear accelerator LIA-30 and pulsed nuclear reactor FR-1

Energy Technology Data Exchange (ETDEWEB)

Bossamykin, V S; Koshelev, A S; Gerasimov, A I; Gordeev, V S; Grishin, A V; Averchenkov, V Ya; Lazarev, S A; Maslov, G N; Odintsov, Yu M [All-Russian Scientific Research Institute of Experimental Physics, Sarov (Russian Federation)

1997-12-31

Some results are given of investigations on joint operation modes of the linear induction electron accelerator LIA-30 ({approx} 40 MeV, {approx} 100 kA, {approx} 20 ns) and the pulsed reactor FR-1 with a compact metal core, aimed at achieving high intensity neutron fluxes. The multiplication factor Q for prompt neutrons in the FR-1 booster mode operation increased from 100 to 4500. The total output of prompt neutrons from FR-1 at Q = 2570 was 1.4 x 10{sup 16} 1/pulse with a pulse half width of {approx} 25 {mu}s. (author). 4 figs., 4 refs.

76 FR 35351 - Capital Plans

Science.gov (United States)

2011-06-17

... reflected on the bank holding company's consolidated financial statement for bank holding companies (FR Y-9C... distribution (the proposal or proposed rule).\\1\\ During the years leading up to the recent financial crisis... times of economic and financial stress. The proposal is intended to address such practices, building...

76 FR 13128 - Magnesium Metal From the Russian Federation: Revocation of Antidumping Duty Order Pursuant to...

Science.gov (United States)

2011-03-10

... reasonably foreseeable time. See Magnesium From China and Russia, 76 FR 11813 (March 3, 2011), and USITC... States within a reasonably foreseeable time. Therefore, the Department is revoking the antidumping duty...); Magnesium From China and Russia, 75 FR 9252 (March 1, 2010). As a result of its sunset review, the...

75 FR 70237 - California State Motor Vehicle Pollution Control Standards; California Heavy-Duty On-Highway Otto...

Science.gov (United States)

2010-11-17

... for the current CARB categories of heavy-duty vehicles are within-the-scope of the previously granted...) (Diesel) and 53 FR 7022 (March 4, 1988) (Otto-cycle). \\3\\ 69 FR 59920 (October 6, 2004). CARB's current... threshold test of materiality and * * * thereafter assess such material evidence against a standard of proof...

77 FR 13547 - Certain Frozen Warmwater Shrimp From the Socialist Republic of Vietnam: Preliminary Results of...

Science.gov (United States)

2012-03-07

... Critical Circumstances, In Part: Certain Lined Paper Products From the People's Republic of China, 71 FR... Administrative Review: Petroleum Wax Candles from the People's Republic of China, 72 FR 52355, 52356 (September... invoice date. \\42\\ See, e.g., Notice of Final Determination of Sales at Less Than Fair Value and Negative...

Generalisation for regular black holes on general relativity to f(R) gravity

Energy Technology Data Exchange (ETDEWEB)

Rodrigues, Manuel E. [Universidade Federal do Para Campus Universitario de Abaetetuba, Faculdade de Ciencias Exatas e Tecnologia, Abaetetuba, Para (Brazil); Universidade Federal do Para, Faculdade de Fisica, PPGF, Belem, Para (Brazil); Fabris, Julio C. [Universidade Federal do Espirito Santo, Vitoria, ES (Brazil); National Research Nuclear University MEPhI, Moscow (Russian Federation); Junior, Ednaldo L.B. [Universidade Federal do Para, Faculdade de Fisica, PPGF, Belem, Para (Brazil); Universidade Federal do Para, Campus Universitario de Tucurui, Faculdade de Engenharia da Computacao, Tucurui, Para (Brazil); Marques, Glauber T. [Universidade Federal Rural da Amazonia ICIBE - LASIC, Belem, PA (Brazil)

2016-05-15

IIn this paper, we determine regular black hole solutions using a very general f(R) theory, coupled to a nonlinear electromagnetic field given by a Lagrangian L{sub NED}. The functions f(R) and L{sub NED} are in principle left unspecified. Instead, the model is constructed through a choice of the mass function M(r) presented in the metric coefficients. Solutions which have a regular behaviour of the geometric invariants are found. These solutions have two horizons, the event horizon and the Cauchy horizon. All energy conditions are satisfied in the whole space-time, except the strong energy condition (SEC), which is violated near the Cauchy horizon.We present also a new theorem related to the energy conditions in f(R) gravity, re-obtaining the well-known conditions in the context of general relativity when the geometry of the solution is the same. (orig.)

78 FR 21183 - Persons on Whom Sanctions Have Been Imposed Under the Iran Sanctions Act of 1996 and the Iran...

Science.gov (United States)

2013-04-09

...: On general issues: Office of Sanctions Policy and Implementation, Department of State, Telephone... FR 56866, September 14, 2011) --Petro[acute]leos de Venezuela S.A. (see Public Notice 7585, 76 FR...

76 FR 54521 - Montana Disaster Number MT-00062

Science.gov (United States)

2011-09-01

..., Broadwater, Carter, Chouteau, Fallon, Flathead, Golden Valley, Madison, Park, Phillips, Pondera, Powell... 59008) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc. 2011-22419 Filed 8-31...

Cosmology of f(R) gravity in the metric variational approach

Science.gov (United States)

Li, Baojiu; Barrow, John D.

2007-04-01

We consider the cosmologies that arise in a subclass of f(R) gravity with f(R)=R+μ2n+2/(-R)n and n∈(-1,0) in the metric (as opposed to the Palatini) variational approach to deriving the gravitational field equations. The calculations of the isotropic and homogeneous cosmological models are undertaken in the Jordan frame and at both the background and the perturbation levels. For the former, we also discuss the connection to the Einstein frame in which the extra degree of freedom in the theory is associated with a scalar field sharing some of the properties of a “chameleon” field. For the latter, we derive the cosmological perturbation equations in general theories of f(R) gravity in covariant form and implement them numerically to calculate the cosmic microwave background (CMB) temperature and matter power spectra of the cosmological model. The CMB power is shown to reduce at low l’s, and the matter power spectrum is almost scale independent at small scales, thus having a similar shape to that in standard general relativity. These are in stark contrast with what was found in the Palatini f(R) gravity, where the CMB power is largely amplified at low l’s and the matter spectrum is strongly scale dependent at small scales. These features make the present model more adaptable than that arising from the Palatini f(R) field equations, and none of the data on background evolution, CMB power spectrum, or matter power spectrum currently rule it out.

Chameleon halo modeling in f(R) gravity

International Nuclear Information System (INIS)

Li Yin; Hu, Wayne

2011-01-01

We model the chameleon effect on cosmological statistics for the modified gravity f(R) model of cosmic acceleration. The chameleon effect, required to make the model compatible with local tests of gravity, reduces force enhancement as a function of the depth of the gravitational potential wells of collapsed structure and so is readily incorporated into a halo model by including parameters for the chameleon mass threshold and rapidity of transition. We show that the abundance of halos around the chameleon mass threshold is enhanced by both the merging from below and the lack of merging to larger masses. This property also controls the power spectrum in the nonlinear regime and we provide a description of the transition to the linear regime that is valid for a wide range of f(R) models.

Wormholes in viable f(R) modified theories of gravity and weak energy condition

Energy Technology Data Exchange (ETDEWEB)

Pavlovic, Petar [Universitaet Hamburg, II. Institut fuer Theoretische Physik, Hamburg (Germany); Sossich, Marko [University of Zagreb, Department of Physics, Faculty of Electrical Engineering and Computing, Zagreb (Croatia)

2015-03-01

In this work wormholes in viable f(R) gravity models are analyzed. We are interested in exact solutions for stress-energy tensor components depending on different shape and redshift functions. Several solutions of gravitational equations for different f(R) models are examined. The solutions found imply no need for exotic material, while this need is implied in the standard general theory of relativity. A simple expression for weak energy condition (WEC) violation near the throat is derived and analyzed. High curvature regime is also discussed, as well as the question of the highest possible values of the Ricci scalar for which the WEC is not violated near the throat, and corresponding functions are calculated for several models. The approach here differs from the one that has been common since no additional assumptions to simplify the equations have been made, and the functions in f(R) models are not considered to be arbitrary functions, but rather a feature of the theory that has to be evaluated on the basis of consistency with observations for the Solar System and cosmological evolution. Therefore in this work we show that the existence of wormholes without exotic matter is not only possible in simple arbitrary f(R) models, but also in models that are in accordance with empirical data. (orig.)

Models of f(R) cosmic acceleration that evade solar system tests

International Nuclear Information System (INIS)

Hu, Wayne; Sawicki, Ignacy

2007-01-01

We study a class of metric-variation f(R) models that accelerates the expansion without a cosmological constant and satisfies both cosmological and solar-system tests in the small-field limit of the parameter space. Solar-system tests alone place only weak bounds on these models, since the additional scalar degree of freedom is locked to the high-curvature general-relativistic prediction across more than 25 orders of magnitude in density, out through the solar corona. This agreement requires that the galactic halo be of sufficient extent to maintain the galaxy at high curvature in the presence of the low-curvature cosmological background. If the galactic halo and local environment in f(R) models do not have substantially deeper potentials than expected in ΛCDM, then cosmological field amplitudes |f R | > or approx.10 -6 will cause the galactic interior to evolve to low curvature during the acceleration epoch. Viability of large-deviation models therefore rests on the structure and evolution of the galactic halo, requiring cosmological simulations of f(R) models, and not directly on solar-system tests. Even small deviations that conservatively satisfy both galactic and solar-system constraints can still be tested by future, percent-level measurements of the linear power spectrum, while they remain undetectable to cosmological-distance measures. Although we illustrate these effects in a specific class of models, the requirements on f(R) are phrased in a nearly model-independent manner

77 FR 12801 - Certain Frozen Warmwater Shrimp From the People's Republic of China: Preliminary Results, Partial...

Science.gov (United States)

2012-03-02

..., the Department preliminarily determines that the respondents in this review did not make sales in the... Administrative Review, 76 FR 51940 (August 19, 2011). Based on our examination of the sales data submitted by... Administrative Review, 66 FR 27063 (May 16, 2001); Notice of Final Determination of Sales at Less Than Fair Value...

75 FR 7244 - Narrow Woven Ribbons with Woven Selvedge from the People's Republic of China: Preliminary...

Science.gov (United States)

2010-02-18

... the United States at less than fair value (``LTFV''), as provided in section 733 of the Tariff Act of... Determination of Sales at Less Than Fair Value: Certain Softwood Lumber Products From Canada, 67 FR 15539 (April...: Preliminary Determination of Sales at Less Than Fair Value and Postponement of Final Determination, 73 FR...

76 FR 56724 - Proposed Flood Elevation Determinations

Science.gov (United States)

2011-09-14

... Town of Clarkstown. Hackensack River confluence. At the upstream side of +248 +247 Little Tor Road... Emergency Management Agency. [FR Doc. 2011-23413 Filed 9-13-11; 8:45 am] BILLING CODE 9110-12-P ...

78 FR 62311 - Leif Erikson Day, 2013

Science.gov (United States)

2013-10-16

... our Nordic-American heritage, the Congress, by joint resolution (Public Law 88-566) approved on... thirty- eighth. (Presidential Sig.) [FR Doc. 2013-24501 Filed 10-15-13; 8:45 am] Billing code 3295-F4 ...

75 FR 17571 - Pendimethalin; Pesticide Tolerances

Science.gov (United States)

2010-04-07

... Enforcement Methodology Adequate enforcement methodology, using liquid chromatography/mass spectrometry... Order Reviews This final rule establishes tolerances under section 408(d) of FFDCA in response to a... actions from review under Executive Order 12866, entitled Regulatory Planning and Review (58 FR 51735...

78 FR 22545 - Performance Review Board

Science.gov (United States)

2013-04-16

... FURTHER INFORMATION CONTACT: Harriette H. Charbonneau, Director of Human Resources, Federal Maritime... prescribed by the Office of Personnel Management, one or more performance review boards. The board shall..., Managing Director 15. Austin L. Schmitt, Director, Strategic Planning and Regulatory Review [FR Doc. 2013...

76 FR 51847 - Air Cargo Screening

Science.gov (United States)

2011-08-18

... apply to international inbound cargo. \\2\\ 74 FR 47672. The IFR provides detailed information on TSA's... Chain Management Professionals, Express Delivery and Logistics Association, International Air Transport... use in other countries for international inbound cargo. TSA Response: TSA is working closely with its...

78 FR 69133 - Drug Enforcement Administration

Science.gov (United States)

2013-11-18

... DEPARTMENT OF JUSTICE Drug Enforcement Administration Manufacturer of Controlled Substances..., California 94085, made application by renewal to the Drug Enforcement Administration (DEA) to be registered... Diversion Control, Drug Enforcement Administration. [FR Doc. 2013-27486 Filed 11-15-13; 8:45 am] BILLING...

76 FR 74631 - Capital Plans

Science.gov (United States)

2011-12-01

... Financial Statements for Bank Holding Companies (FR Y-9C). This calculation will be effective as of the due... to rely on tentative fourth quarter financial statements in developing its capital plan and suggested... rule applies only to bank holding companies with $50 billion or more of total consolidated assets...

[History of the therapeutic uses of the tinder polypore, Fomes fomentarius (L. : Fr].

Science.gov (United States)

Roussel, Bertrand; Rapior, Sylvie; Charlot, Colette; Masson, Christian-Louis; Boutié, Paul

2002-01-01

This paper presents the major therapeutic uses of Fomes fomentarius (L. : Fr.) Fr., tinder polypore. The context of this fungus is a wooly and soft material so called amadou (tinder). During the XVIII and XIXth centuries, the fungal material was used as haemostatic dressing and bandage to keep the temperature and compress parts of the body. It was also used as cautery for moxibustion and was reported in several traditional pharmacopoeias (Hungarian, Chinese, Indian).

Brane f(R) gravity and the dark side of the universe

International Nuclear Information System (INIS)

Borzou, A.; Sepangi, H. R.; Shahidi, S.; Yousefi, R.

2009-01-01

We consider a brane world scenario in which the bulk action is assumed to have the form of a generic function of the Ricci scalar f(R) and derive the resulting Einstein field equation on the brane. In a constant curvature bulk a conserved geometric quantity appears in the field equations which can be associated with matter. We present spherically symmetric solutions which account for galaxy rotation curves in a specific form. Then cosmological solutions by assuming a specific form for f(R) are derived which can explain an accelerated expanding universe.

Increasing the capacity of the NEAG natural gas processing plants; Kapazitaetssteigerung der Erdgasaufbereitungsanlagen der NEAG

Energy Technology Data Exchange (ETDEWEB)

Rest, W.; Weiss, A. [Mobil Erdgas-Erdoel GmbH, Celle (Germany)

1998-12-31

The fact that new deposits of sour natural gas were found in the concessions at Scholen/Wesergebirgsvorland and that a sour gas pipeline was built from the BEB-operated field in South-Oldenburg increased the sour gas volume handled by the North German Natural Gas Processing Company (NEAG) so much, that capacities had to be stepped up. This paper describes the measures taken to increase capacities. Various interesting process engineering methods employed to remove bottlenecks in the parts of the plant are described in detail. These refer to the modification of the baffle plates in the high-pressure absorber of the Purisolwashers NEAG I, as well as in the expansion tank and the purified gas waher of the NEAG III washing plant as well as comprehensive modifications of the MODOP-flue gas scrubber NEAG III (orig.) [Deutsch] Neue Sauergasfunde in den Konzessionen Scholen/Wiehengebirgsvorland sowie der Bau der Sauergasverbindungsleitung aus dem von BEB operierten Feldesbereich Sued-Oldenburg haben die der Norddeutschen Erdgas-Aufbereitungsgesellschaft (NEAG) in Voigtei angebotenen Sauergasmengen soweit erhoeht, dass eine Kapazitaetserhoehung notwendig wurde. Im Rahmen des Vortrages werden die Massnahmen zur Kapazitaetssteigerung vorgestellt. Einige verfahrenstechnisch besonders interessante Loesungen zur Beseitigung von Engpaessen in Anlagenteilen werden detailliert beschrieben. Es handelt sich hierbei um die Modifikation der Einbauten im Hochdruckabsorber der Purisolwaesche NEAG I, im Entspannungsbehaelter und Reingaswaescher der Waesche NEAG III sowie umfangreiche Aenderungen im Bereich der MODOP-Abgasreinigungsanlage NEAG III. (orig.)

Genetics of alkaline phosphatase of the small intestine of the house mouser (Mus musculus).

Science.gov (United States)

Wilcox, F H

1983-08-01

Four inbred strains of mice exhibited either slow (PL/J), intermediate (DBA/2J, LP/J), or fast (SWR/J) rates of migration of duodenal alkaline phosphatase on cellulose acetate electrophoresis. Hybrids of these strains also had intermediate rates of migration regardless of the combination of strains used as parents. Strain differences were present in all regions of the small but not the large intestine. Crosses of the PL/J strain to hybrids between this strain and the other three strains gave a 1:1 segregation of the slow and intermediate patterns. The symbol Akp-3 is proposed for the locus responsible for the slower migration of the enzyme in this strain. Data from the LP/J X PL/J hybrid crossed with the PL/J strain showed linkage with two loci on chromosome 1 as follows: centromere--Idh-1--13.8 cM--Akp-3--8.9 +/- 2.6 cM--Pep-3. The available data do not reveal the genetic basis for the faster migration rate of the enzyme from the SWR/J strain, but a different response to neuraminidase and apparent nonlinkage to the Pep-3 locus suggest that a locus other than Akp-3 is responsible.

Internally generated hippocampal sequences as a vantage point to probe future-oriented cognition.

Science.gov (United States)

Pezzulo, Giovanni; Kemere, Caleb; van der Meer, Matthijs A A

2017-05-01

Information processing in the rodent hippocampus is fundamentally shaped by internally generated sequences (IGSs), expressed during two different network states: theta sequences, which repeat and reset at the ∼8 Hz theta rhythm associated with active behavior, and punctate sharp wave-ripple (SWR) sequences associated with wakeful rest or slow-wave sleep. A potpourri of diverse functional roles has been proposed for these IGSs, resulting in a fragmented conceptual landscape. Here, we advance a unitary view of IGSs, proposing that they reflect an inferential process that samples a policy from the animal's generative model, supported by hippocampus-specific priors. The same inference affords different cognitive functions when the animal is in distinct dynamical modes, associated with specific functional networks. Theta sequences arise when inference is coupled to the animal's action-perception cycle, supporting online spatial decisions, predictive processing, and episode encoding. SWR sequences arise when the animal is decoupled from the action-perception cycle and may support offline cognitive processing, such as memory consolidation, the prospective simulation of spatial trajectories, and imagination. We discuss the empirical bases of this proposal in relation to rodent studies and highlight how the proposed computational principles can shed light on the mechanisms of future-oriented cognition in humans. © 2017 New York Academy of Sciences.

76 FR 58716 - Telemarketing Sales Rule

Science.gov (United States)

2011-09-22

... FEDERAL TRADE COMMISSION 16 CFR Part 310 Telemarketing Sales Rule AGENCY: Federal Trade Commission... Telemarketing Sales Rule in the Federal Register on August 10, 2010 (75 FR 48458), with new provisions to..., Division of Marketing Practices, Bureau of Consumer Protection, Federal Trade Commission, Washington, DC...

75 FR 9725 - Free Annual File Disclosures

Science.gov (United States)

2010-03-03

... activities of companies that attempt to trick people into buying something that they are entitled by Federal... maintain the file disclosure for future reference. 74 FR at 52917- 918. Cf. Franchise Rule, 16 CFR 436.6(b...

76 FR 21879 - Energy Conservation Program for Consumer Products: Decision and Order Granting a Waiver to LG...

Science.gov (United States)

2011-04-19

... granted waivers to Electrolux (76 FR 11440 (March 2, 2011)) and Samsung (76 FR 13169 (March 10, 2011... granted to Whirlpool, GE, Samsung and Electrolux, as well as previously to LG, the clothes washer test... make representations about the energy use of its clothes washer products for compliance, marketing, or...

77 FR 77064 - Notice of Petition for Waiver of BSH Corporation From the Department of Energy Residential...

Science.gov (United States)

2012-12-31

... at http://water.usgs.gov/owq/hardness-alkalinity.html ). Calculations Water Use Based on the DOE... petitions on October 1, 2012 (77 FR 59916 and 77 FR 59918, respectively). BSH states that ``hard'' water can... a water softener will minimize pre-rinsing and rewashing, and consumers will have less reason to...

78 FR 74012 - Approval and Promulgation of Implementation Plans; State of Oregon; Revised Format for Materials...

Science.gov (United States)

2013-12-10

... technical standards; thus the requirements of section 12(d) of the National Technology Transfer and.... Technology. 226-0140 Additional Control 7/1/2001 1/22/2003, 68 FR Requirements for 2891. Stationary Sources... Who is Subject to 4/12/2007 12/19/2011, 76 FR ECO? 78571. 242-0030 What Does ECO 4/12/2007 12/19/2011...

Exploring the liminality: properties of haloes and subhaloes in borderline f(R) gravity

Science.gov (United States)

Shi, Difu; Li, Baojiu; Han, Jiaxin; Gao, Liang; Hellwing, Wojciech A.

2015-09-01

We investigate the properties of dark matter haloes and subhaloes in an f(R) gravity model with |fR0| = 10-6, using a very-high-resolution N-body simulation. The model is a borderline between being cosmologically interesting and yet still consistent with current data. We find that the halo mass function in this model has a maximum 20 per cent enhancement compared with the Λ-cold-dark-matter (ΛCDM) predictions between z = 1 and 0. Because of the chameleon mechanism which screens the deviation from standard gravity in dense environments, haloes more massive than 1013 h-1 M⊙ in this f(R) model have very similar properties to haloes of similar mass in ΛCDM, while less massive haloes, such as that of the Milky Way, can have steeper inner density profiles and higher velocity dispersions due to their weaker screening. The halo concentration is remarkably enhanced for low-mass haloes in this model due to a deepening of the total gravitational potential. Contrary to the naive expectation, the halo formation time zf is later for low-mass haloes in this model, a consequence of these haloes growing faster than their counterparts in ΛCDM at late times and the definition of zf. Subhaloes, especially those less massive than 1011 h-1 M⊙, are substantially more abundant in this f(R) model for host haloes less massive than 1013 h-1 M⊙. We discuss the implications of these results for the Milky Way satellite abundance problem. Although the overall halo and subhalo properties in this borderline f(R) model are close to their ΛCDM predictions, our results suggest that studies of the Local Group and astrophysical systems, aided by high-resolution simulations, can be valuable for further tests of it.

75 FR 7956 - Changes in Flood Elevation Determinations

Science.gov (United States)

2010-02-23

... Executive Order 12866 of September 30, 1993, Regulatory Planning and Review, 58 FR 51735. Executive Order... Springs, 212 D Rocket Miner. Street, Rock Springs, WY 82901. (Catalog of Federal Domestic Assistance No...

78 FR 23252 - Ocean Transportation Intermediary License Revocations

Science.gov (United States)

2013-04-18

.... Address: Giralda Farms, Madison Avenue, Madison, NJ 07940. Date Revoked: March 29, 2013. Reason: Failed to... maintain a valid bond. James A. Nussbaumer, Deputy Director, Bureau of Certification and Licensing. [FR Doc...

76 FR 33395 - Tennessee; Disaster Number TN-00052

Science.gov (United States)

2011-06-08

..., Johnson, Lake, Madison, Mcminn, Mcnairy, Monroe, Rhea, Shelby, Weakley. All other information in the...) James E. Rivera, Associate Administrator for Disaster Assistance. [FR Doc. 2011-14163 Filed 6-7-11; 8:45...

Erfolgreiche Koordination durch Kultur? : Herrschaftsmythen der Frühen Neuzeit und die Organizational-Culture-These

OpenAIRE

Ewert, Ulf Christian

1998-01-01

Herrschaftsmythen können als spezifische Gestaltungselemente einer Organisationskultur interpretiert werden. Sie waren in den frühneuzeitlichen Systemen Mittel des politischen Zusammenwirkens, gerichtet auf Integration und Definition der jeweiligen Organisation. Gegenstand der Untersuchung sind neun frühneuzeitliche Mythen, darunter der Roi Soleil, Neues Israel und Wilhelm Tell. Hinterfragt wurden wahrgenommene Ähnlichkeiten zwischen den neun Mythen, deren integrative und revolutionäre Muster...

75 FR 22240 - Cyprodinil; Pesticide Tolerances

Science.gov (United States)

2010-04-28

... commodities. In addition, a high performance liquid chromatography with mass spectrometry (HPLC/MS) method... Executive Order Reviews This final rule establishes tolerances under section 408(d) of FFDCA in response to... types of actions from review under Executive Order 12866, entitled Regulatory Planning and Review (58 FR...

77 FR 17034 - Procurement List; Addition

Science.gov (United States)

2012-03-23

...: Base Supply Center, National Maritime Intelligence Center/Office of Naval Intelligence, 4251 Suitland... Activity: Dept. of the Navy, Office Of Naval Intelligence, Washington, DC. Barry S. Lineback, Director, Business Operations. [FR Doc. 2012-7006 Filed 3-22-12; 8:45 am] BILLING CODE 6353-01-P ...

77 FR 3772 - Economic Impact Policy

Science.gov (United States)

2012-01-25

... new petrochemical facility in Mexico. The financed amount associated with the U.S. export contract... its products primarily within Mexico, and also to the U.S., Central America, and South America... in the Federal Register. Angela Mariana Freyre, Senior Vice President and General Counsel. [FR Doc...

77 FR 71833 - Tribal Consultation Policy

Science.gov (United States)

2012-12-04

... Relationship and Tribal Self- Determination B. Open Communications and Respect for Cultural Values and... viewed online in their entirety at: http://www.regulations.gov/#!docketDetail ;dct=FR%252BPR%252BN%252BO...-Government Relationship and Tribal Self-Determination One commenter recommended editing this section to...

77 FR 71400 - Procurement List, Additions

Science.gov (United States)

2012-11-30

.... Contracting Activity: DEFENSE LOGISTICS AGENCY TROOP SUPPORT, PHILADELPHIA, PA. Coverage: C-List for 100% of the requirement of the Department of Defense, as aggregated by the Defense Logistics Agency Troop... ARMY, W071 ENDIST KANSAS CITY, KANSAS CITY, MO. Barry S. Lineback, Director, Business Operations. [FR...

78 FR 34016 - Wireline Competition Bureau Seeks Comment on Options To Promote Rural Broadband in Rate-Of-Return...

Science.gov (United States)

2013-06-06

... document is available for inspection and copying during normal business hours in the FCC Reference... carriers supports such networks, and indeed, under the USF/ICC Transformation Order, 76 FR 73830, November... originally sought comment on this proposal in the USF/ICC Transformation Order FNPRM, 76 FR 73830, November...

AREVA Technical Days (ATD) session 3: operations of the reactors and services division, technical and economic aspects

International Nuclear Information System (INIS)

2003-01-01

These technical days organized by the Areva Group aims to explain the group activities in a technological and economic point of view, to provide an outlook of worldwide energy trends and challenges and to present each of their businesses in a synthetic manner. This third session deals with the reactors technologies basics, the EPR and SWR 1000 issues and outlook, the nuclear systems of the future, the business opportunities and business models. (A.L.B.)

AREVA Technical Days (ATD) session 3: operations of the reactors and services division, technical and economic aspects; AREVA Technical Days (ATD) session 3: les activites du pole reacteurs et services, aspects techniques et economiques

Energy Technology Data Exchange (ETDEWEB)

NONE

2003-07-01

These technical days organized by the Areva Group aims to explain the group activities in a technological and economic point of view, to provide an outlook of worldwide energy trends and challenges and to present each of their businesses in a synthetic manner. This third session deals with the reactors technologies basics, the EPR and SWR 1000 issues and outlook, the nuclear systems of the future, the business opportunities and business models. (A.L.B.)

The simplest non-minimal matter-geometry coupling in the f(R, T) cosmology

Energy Technology Data Exchange (ETDEWEB)

Moraes, P.H.R.S. [ITA - Instituto Tecnologico de Aeronautica, Departamento de Fisica, Sao Paulo (Brazil); Sahoo, P.K. [Birla Institute of Technology and Science-Pilani, Department of Mathematics, Hyderabad (India)

2017-07-15

f(R, T) gravity is an extended theory of gravity in which the gravitational action contains general terms of both the Ricci scalar R and the trace of the energy-momentum tensor T. In this way, f(R, T) models are capable of describing a non-minimal coupling between geometry (through terms in R) and matter (through terms in T). In this article we construct a cosmological model from the simplest non-minimal matter-geometry coupling within the f(R, T) gravity formalism, by means of an effective energy-momentum tensor, given by the sum of the usual matter energy-momentum tensor with a dark energy contribution, with the latter coming from the matter-geometry coupling terms. We apply the energy conditions to our solutions in order to obtain a range of values for the free parameters of the model which yield a healthy and well-behaved scenario. For some values of the free parameters which are submissive to the energy conditions application, it is possible to predict a transition from a decelerated period of the expansion of the universe to a period of acceleration (dark energy era). We also propose further applications of this particular case of the f(R, T) formalism in order to check its reliability in other fields, rather than cosmology. (orig.)

The simplest non-minimal matter-geometry coupling in the f(R, T) cosmology

International Nuclear Information System (INIS)

Moraes, P.H.R.S.; Sahoo, P.K.

2017-01-01

f(R, T) gravity is an extended theory of gravity in which the gravitational action contains general terms of both the Ricci scalar R and the trace of the energy-momentum tensor T. In this way, f(R, T) models are capable of describing a non-minimal coupling between geometry (through terms in R) and matter (through terms in T). In this article we construct a cosmological model from the simplest non-minimal matter-geometry coupling within the f(R, T) gravity formalism, by means of an effective energy-momentum tensor, given by the sum of the usual matter energy-momentum tensor with a dark energy contribution, with the latter coming from the matter-geometry coupling terms. We apply the energy conditions to our solutions in order to obtain a range of values for the free parameters of the model which yield a healthy and well-behaved scenario. For some values of the free parameters which are submissive to the energy conditions application, it is possible to predict a transition from a decelerated period of the expansion of the universe to a period of acceleration (dark energy era). We also propose further applications of this particular case of the f(R, T) formalism in order to check its reliability in other fields, rather than cosmology. (orig.)

Study of some chaotic inflationary models in f(R) gravity

Science.gov (United States)

Sharif, M.; Nawazish, Iqra

2018-04-01

In this paper, we discuss an inflationary scenario via scalar field and fluid cosmology for an anisotropic homogeneous universe model in f(R) gravity. We consider an equation of state which corresponds to a quasi-de Sitter expansion and investigate the effect of the anisotropy parameter for different values of the deviation parameter. We evaluate potential models like linear, quadratic and quartic models which correspond to chaotic inflation. We construct the observational parameters for a power-law model of f(R) gravity and construct the graphical analysis of tensor-scalar ratio and spectral index which indicates the consistency of these parameters with Planck 2015 data.

77 FR 34344 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final Results of the Antidumping...

Science.gov (United States)

2012-06-11

... of Korea, Mexico, and Venezuela, 61 FR 11608 (March 21, 1996). In accordance with this determination... Proceedings: Assessment of Antidumping Duties, 68 FR 23954 (May 6, 2003) (``Assessment Policy Notice''). This... transaction. See Assessment Policy Notice for a full discussion of this clarification. Cash Deposit...

76 FR 67197 - Small Entity Compliance Guide: Required Warnings for Cigarette Packages and Advertisements...

Science.gov (United States)

2011-10-31

...The Food and Drug Administration (FDA) is correcting a notice that appeared in the Federal Register of October 25, 2011 (76 FR 66074). The document announced the availability of a guidance for industry entitled ``Required Warnings for Cigarette Packages and Advertisements--Small Entity Compliance Guide'' for a final rule that published in the Federal Register of June 22, 2011 (76 FR 36628). The notice published with an incorrect docket number. This document corrects that error.

78 FR 51129 - Endangered and Threatened Wildlife and Plants; 6-Month Extension of Final Determination for the...

Science.gov (United States)

2013-08-20

.... DATES: The comment period for the proposed rule published August 22, 2012, at 77 FR 50768, is reopened..., Austin Ecological Services Field Office, 10711 Burnet Rd, Suite 200, Austin, TX 78758; by telephone 512...: Background On August 22, 2012, we published in the Federal Register a proposed rule (77 FR 50768) to list the...

75 FR 60281 - National Public Lands Day, 2010

Science.gov (United States)

2010-09-29

.... Every September, thousands of Americans volunteer their time and talents to protect our parks, national... hundred and thirty-fifth. (Presidential Sig.) [FR Doc. 2010-24646 Filed 9-28-10; 11:15 am] Billing code...

78 FR 53732 - Marine Mammals; File No. 14325

Science.gov (United States)

2013-08-30

... the identity of the Principal Investigator from Dr. Lorrie Rea to Michael Rehberg. The permit was amended on July 12, 2012 (77 FR 38587), to include: manual restraint of pups in the eastern Distinct...

76 FR 39812 - Modoc County Resource Advisory Committee

Science.gov (United States)

2011-07-07

... Coordinator, Stephen Riley at (530) 233-8705. SUPPLEMENTARY INFORMATION: The business meeting on July 11, 2011... meeting. Dated: June 23, 2011. Kimberly H. Anderson, Forest Supervisor. [FR Doc. 2011-17022 Filed 7-6-11...

75 FR 79049 - Final Regulatory Guide: Issuance, Availability

Science.gov (United States)

2010-12-17

... opened in transit. This guide also incorporates suggestions for ensuring that TIDs are properly applied..., Division of Engineering, Office of Nuclear Regulatory Research. [FR Doc. 2010-31729 Filed 12-16-10; 8:45 am...

Standard cosmological evolution in the f(R) model to Kaluza-Klein cosmology

International Nuclear Information System (INIS)

Aghmohammadi, A; Abolhassani, M R; Saaidi, Kh; Vajdi, A

2009-01-01

In this paper, using f(R) theory of gravity we explicitly calculate cosmological evolution in the presence of a perfect fluid source in four- and five-dimensional space-time in which this cosmological evolution in self-creation is presented by Reddy et al (2009 Int. J. Theor. Phys. 48 10). An exact cosmological model is presented using a relation between Einstein's gravity field equation components due to a metric with the same component from f(R) theory of gravity. Some physics and kinematical properties of the model are also discussed.

77 FR 43520 - Significant New Use Rules on a Certain Chemical Substance; Removal of Significant New Use Rules

Science.gov (United States)

2012-07-25

... April 27, 2012 (77 FR 25236) (FRL-9343-4). If you have questions regarding the applicability of this... (77 FR 25236). If you have questions, consult the technical person listed under FOR FURTHER... 2070-AB27 Significant New Use Rules on a Certain Chemical Substance; Removal of Significant New Use...

76 FR 79666 - Decision and Order Granting a Waiver to LG from the Department of Energy Residential Clothes...

Science.gov (United States)

2011-12-22

..., 2011)) and Samsung (76 FR 13169 (Mar. 10, 2011); 76 FR 50207 (Aug. 12, 2011)). DOE notes that its... was submitted by LG, the waivers granted to Whirlpool, GE, Samsung and Electrolux, as well as... may make representations about the energy use of its clothes washer products for compliance, marketing...

77 FR 66434 - Certain Frozen Warmwater Shrimp From the People's Republic of China: Notice of Court Decision Not...

Science.gov (United States)

2012-11-05

... Canned Warmwater Shrimp From the People's Republic of China, 69 FR 70997 (December 8, 2004) (``PRC Final... Devi Sea Foods Ltd. (``Devi''), rather than data for Nekkanti, as the basis for calculating the raw... Determination: Certain Frozen and Canned Warmwater Shrimp From the People's Republic of China, 69 FR 42654 (July...

76 FR 53903 - Delegation of Authorities

Science.gov (United States)

2011-08-30

... DEPARTMENT OF HEALTH AND HUMAN SERVICES Delegation of Authorities Notice is hereby given that I... Delegations of Authority, last published at 55 FR 9363 (March 13, 1990). Title I--Quality, Affordable Health... the Public Health Service Act. The delegation includes, but does not limit the authority to, directing...

78 FR 18594 - Delegation of Authorities

Science.gov (United States)

2013-03-27

... DEPARTMENT OF HEALTH AND HUMAN SERVICES Delegation of Authorities Notice is hereby given that I... Delegations of Authority, last published at 55 FR 9363 (March 13, 1990). Affordable Care Act Title I--Quality... Programs. This delegation of authorities excludes the authority to issue regulations and to submit reports...

76 FR 76815 - Business Opportunity Rule

Science.gov (United States)

2011-12-08

... Used Throughout This Statement of Basis and Purpose ``Amended Franchise Rule'' refers to the amended Franchise Rule published at 72 FR 15444 (Mar. 30, 2007) and codified at 16 CFR 436. ``ANPR'' refers to the.../bcp/workshops/bizopps/disclosure-form-report.pdf . ``Original Franchise Rule'' refers to the original...

78 FR 32991 - Connect America Fund

Science.gov (United States)

2013-06-03

..., 2013. The full text of this document is available for public inspection during regular business hours.... Introduction 1. In the USF/ICC Transformation Order, 76 FR 73830, November 29, 2011, the Commission... the USF/ICC Transformation Order, an unsubsidized competitor in areas where the price cap carrier will...

78 FR 70881 - Connect America Fund

Science.gov (United States)

2013-11-27

... this document is available for inspection and copying during normal business hours in the FCC Reference.../Daily_Releases/Daily_Business/2013/db1031/DA-13-2115A1.pdf . I. Introduction 1. In the USF/ICC Transformation Order, 78 FR 38227, June 26, 2013, the Federal Communications Commission (Commission...

76 FR 18348 - Required Scale Tests

Science.gov (United States)

2011-04-04

... RIN 0580-AB10 Required Scale Tests AGENCY: Grain Inspection, Packers and Stockyards Administration... published a document in the Federal Register on January 20, 2011 (76 FR 3485), defining required scale tests... the last sentence of paragraph (a) to read as follows: Sec. 201.72 Scales; testing of. (a...

75 FR 43491 - Sunshine Act Meetings

Science.gov (United States)

2010-07-26

....-10:30 a.m., Wednesday July 21, 2010. Changes to Meeting: Meeting postponed. For a recorded message containing the latest agenda information, call (301) 504-7948. FOR FURTHER INFORMATION CONTACT: Contact..., Bethesda, MD 20814 (301) 504-7923. Dated: July 21, 2010. . Todd A. Stevenson, Secretary. [FR Doc. 2010...

Koedukation als pädagogische Aufgabe

Directory of Open Access Journals (Sweden)

Renate Niekant

2007-07-01

Full Text Available Was ist reflexive Koedukation? Es ist eine Pädagogik „aufgeklärter Heterogenität“ (Annedore Prengel, die über die Diskussion der Geschlechterfrage an der Schule und auch über bloß formale Gleichheit (z. B. im Geschlechterverhältnis hinaus differenzierte pädagogische Handlungsperspektiven im Umgang mit Vielfalt/Differenzen im Schulalltag eröffnen will. Ihr Ziel ist es, „gute Bedingungen für Lernprozesse“ (Kreienbaum/Urbaniak zu schaffen, die individuelle Freiheit, Kreativität und Entwicklungsprozesse von Kindern und Jugendlichen im Interesse der Herstellung von Chancengleichheit ermöglichen.

Berufskrankheiten, die Schaffung am Subjekt und politische Arbeit im Talkshow-Format

Directory of Open Access Journals (Sweden)

Ruben Marc Hackler

2008-03-01

Full Text Available In ihrer Analyse der Sprecherpositionen, die subalternen Frauen in Indien zugestanden wird, formuliert Gayatri Chakravorty Spivak eine Kritik am fehlenden Verantwortungsbewusstsein westlicher Intellektueller. Zugleich entwickelt sie eine anspruchsvolle Vorgabe für die Untersuchung kolonialer Herrschaftspraktiken. Während die Forderung nach Verantwortung allerdings hinter dem eigenen Anspruch zurückbleibt, die institutionellen und historischen Bedingungen akademischer Arbeit zu berücksichtigen, birgt ihre Theorie des unterworfenen Subjektes ein großes Analysepotential. Das Gespräch zwischen Spivak und Judith Butler enttäuscht hingegen die Erwartungen an eine informierte politische Öffentlichkeit.

Rezension von: Sally Macarthur: Towards a Twenty-First-Century Feminist Politics of Music. Aldershot: Ashgate 2010.

Directory of Open Access Journals (Sweden)

Kordula Knaus

2011-09-01

Full Text Available Sally Macarthur unternimmt mit Rückgriff auf Philosophien von Deleuze und Guattari bzw. deren feministische Weiterentwicklung u. a. durch Grosz und Braidotti eine Neupositionierung der Figur der Komponistin in der zeitgenössischen Musikproduktion. Auf der Grundlage von Denkkonzepten wie ‚Differenz‘, ‚Virtualität‘, ‚Werden‘ oder ‚Deterritorialisierung‘ dekonstruiert Macarthur die Master-Narrative von autonomer, innovativer, schöpferischer, männlicher Musikproduktion. Ihre Thesen exemplifiziert Macarthur durch die Analyse der Musik der Komponistinnen Sofia Gubaidulina, Elena Kats-Chernin und Anne Boyd sowie in der Auseinandersetzung mit den Bedingungen und Inhalten des gegenwärtigen Kompositionsunterrichts.

Bedingungen mütterlicher Reaktivität / Sensitivität im ersten Lebensjahr

OpenAIRE

Mertesacker, Bettina

2000-01-01

In der vorliegenden längsschnittlich konzipierten Studie wurde der Einfluß verschiedener Faktoren auf die Adäquatheit mütterlichen Interaktionsverhaltens im Verlauf des ersten Lebensjahres überprüft. Auf der Grundlage der interaktionalen Modelle von BELSKY (1984) und PAPOUŠEK & PAPOUŠEK (1990) wurde angenommen, daß sowohl Charakteristiken der am Interaktionsgeschehen beteiligten Personen, also Bezugsperson und Kind, als auch der Kontext, in welchem sich die Interaktion abspielt,...

75 FR 30074 - Notice of Docketing, Proposed Action, and Opportunity for a Hearing for Renewal of Special...

Science.gov (United States)

2010-05-28

... hearing, in accordance with the NRC E-Filing rule, which the NRC promulgated on August 28, 2007 (72 FR... entities participating under 10 CFR 2.315(c), must be filed in accordance with the NRC E-Filing rule (72 FR 49139, August 28, 2007). The E-Filing process requires participants to submit and serve all adjudicatory...

77 FR 17325 - Special Conditions: Airbus, A350-900 Series Airplane; Passenger Seats With Non-Traditional, Large...

Science.gov (United States)

2012-03-26

... accommodates side-by-side placement of LD-3 containers in the cargo compartment. The basic A350-900 series... special conditions consist of applying the identical test conditions required of all other large panels in...), Notice No. 85-10 (50 FR 15038, April 16, 1985) and the Final Rule at Amendment 25-61 (51 FR 26206, July...

A Fröhlich effect and representational gravity in memory for auditory pitch.

Science.gov (United States)

Hubbard, Timothy L; Ruppel, Susan E

2013-08-01

Memory for the initial pitch of an auditory target that increased or decreased in auditory frequency was examined. Memory was displaced forward in the direction of pitch motion, and this is consistent with the Fröhlich effect previously observed for visual targets moving in visual physical space. The Fröhlich effect for pitch increased with faster target velocity and decreased if an auditory cue with the same pitch as the initial pitch of the target was presented before the target was presented. The Fröhlich effect was larger for descending pitch motion than for ascending pitch motion, and this is consistent with an influence of representational gravity. The data suggest that representation of auditory frequency space exhibits some of the same biases as representation of visual physical space, and implications for theories of attention in displacement and for crossmodal and multisensory representation of space are discussed. 2013 APA, all rights reserved

75 FR 29211 - Changes in Flood Elevation Determinations

Science.gov (United States)

2010-05-25

..., Regulatory Planning and Review, 58 FR 51735. Executive Order 13132, Federalism. This final rule involves no...-0320P). 21, 2009; Rock Kaumo, Mayor, City of Springs Daily Rock Springs, 212 D Rocket[dash]Miner. Street...

76 FR 25692 - Ocean Transportation Intermediary License; Revocation

Science.gov (United States)

2011-05-05

...: 169094N. Name : Trans Port Agencies, Inc. Address: 1790 Yardley-Langhorne Road, Suite 202, Yardley, PA... Certification and Licensing. [FR Doc. 2011-10932 Filed 5-4-11; 8:45 am] BILLING CODE 6730-01-P ...

78 FR 663 - Decommissioning Planning During Operations

Science.gov (United States)

2013-01-04

...] Decommissioning Planning During Operations AGENCY: Nuclear Regulatory Commission. ACTION: Regulatory guide..., ``Decommissioning Planning During Operations.'' The guide describes a method that the NRC staff considers acceptable for use by holders of licenses in complying with the NRC's Decommissioning Planning Rule (DPR) (76 FR...

76 FR 38143 - Proposed Agency Information Collection

Science.gov (United States)

2011-06-29

..., Solar Energy Technologies Program, Office of Energy Efficiency and Renewable Energy. [FR Doc. 2011-16307... DEPARTMENT OF ENERGY Office of Energy Efficiency and Renewable Energy Proposed Agency Information Collection AGENCY: U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy. ACTION...

78 FR 72451 - Net Investment Income Tax

Science.gov (United States)

2013-12-02

... Net Investment Income Tax AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Withdrawal of... computation of net investment income. The regulations affect individuals, estates, and trusts whose incomes meet certain income thresholds. DATES: The proposed rule published December 5, 2012 (77 FR 72612), is...

76 FR 21034 - Dell Products LP, Winston-Salem (WS-1) Division, Including On-Site Leased Workers From Adecco...

Science.gov (United States)

2011-04-14

... Carolina. The workers are engaged in employment related to the production of desktop computers. The notice was published in the Federal Register on April 23, 2010 (75 FR 21361). The notices were amended on.... The notices were published in the Federal Register on April 19, 2010 (75 FR 20385), September 13, 2010...

76 FR 71867 - Addition of Certain Persons to the Entity List; and Implementation of Entity List Annual Review...

Science.gov (United States)

2011-11-21

... Kabul, Afghanistan, and A2 Ground Floor, City Computer Plaza, Shar-e-Naw, Kabul, Afghanistan; (3) Fazal..., Peshawar, Pakistan; (3) Fazal Rahim Farid, a.k.a., the following three aliases: --Fazel Rahim Farid... Afghanistan EAR). Fazal Rahim Farid, a.k.a., the For all items Presumption of denial........ 76 FR [INSERT FR...

76 FR 24538 - Draft Regulatory Guide: Issuance, Availability

Science.gov (United States)

2011-05-02

... with the motor starter for electric motors on motor-operated valves. This method would ensure that the..., Division of Engineering, Office of Nuclear Regulatory Research. [FR Doc. 2011-10561 Filed 4-29-11; 8:45 am...

78 FR 56837 - 2012 Liquid Chemical Categorization Updates

Science.gov (United States)

2013-09-16

..., liquefied gases, and compressed gases that have been approved for maritime transportation in bulk, and that... Commercial Regulations and Standards, U.S. Coast Guard. [FR Doc. 2013-22412 Filed 9-13-13; 8:45 am] BILLING...

78 FR 1708 - Regulatory Flexibility Agenda

Science.gov (United States)

2013-01-08

... and Sale of Securities Through Crowdfunding Under Section 4(6) of the Securities Act of 1933. 534... Rule Stage 533. Rules Governing the Offer and Sale of Securities Through Crowdfunding Under Section 4(6... securities through crowdfunding under new section 4(6) of the Securities Act. Timetable: Action Date FR Cite...

76 FR 1402 - Sunshine Act Notice

Science.gov (United States)

2011-01-10

..., Washington, DC 20425. Briefing Agenda This briefing is open to the public. Topic: Gender and the Wage Gap I... COMMISSION ON CIVIL RIGHTS Sunshine Act Notice AGENCY: United States Commission on Civil Rights. ACTION: Notice of cancelled meeting. SUMMARY: On December 8, 2010 (75 FR 76395), the U.S. Commission on...

75 FR 75187 - Sunshine Act Meeting

Science.gov (United States)

2010-12-02

... SECURITIES AND EXCHANGE COMMISSION Sunshine Act Meeting Notice is hereby given, pursuant to the provisions of the Government in the Sunshine Act, Public Law 94-409, that the Securities and Exchange.... Elizabeth M. Murphy, Secretary. [FR Doc. 2010-30407 Filed 11-30-10; 4:15 pm] BILLING CODE 8011-01-P ...

78 FR 68480 - National Science Board

Science.gov (United States)

2013-11-14

... business, as follows: Date and Time: Monday, November 18, 2013 at 11:00 a.m. EST. Subject Matter: Consideration of nominations for honorary awards. Status: Closed. This meeting will be held by teleconference... 22230. Telephone: (703) 292-7000. Ann Bushmiller, NSB Senior Legal Counsel. [FR Doc. 2013-27199 Filed 11...

High temperature fatigue properties of the 316 FR steel

International Nuclear Information System (INIS)

Kobayashi, Kazuo; Yamaguchi, Koji; Kato, Seiichi; Nishijima, Satoshi; Fujioka, Terutaka; Nakazawa, Takanori; Koto, Hiroyuki; Date, Shingo

1998-01-01

Type 316 FR stainless steel has been developed as a candidate material for fast breeder reactor of next century. For the structural integrity design of high temperature components including reactor vessel, long-term data and analysis method are investigated for the new 316 FR steel especially to evaluate its time-dependent low-cycle fatigue behavior. The present paper reports dependencies of fatigue life on the strain rate from 10 -2 to 10 -5 s -1 , and on the temperature dependencies from 500degC to 600degC. Data are analyzed by a parametric method formerly proposed by the authors. It is shown that the method has a good predictability of the fatigue life up to very low strain rate of 10 -6 s -1 . (author)

Technical meeting (TM) to 'Review of national programmes on fast reactors and accelerator driven systems (ADS)'. Technical Working Group on Fast Reactors (TWG-FR) (37th annual meeting). Working material

Energy Technology Data Exchange (ETDEWEB)

NONE

2004-07-01

The objectives of the 37th Annual Meeting of the Technical Working Group on Fast Reactors, were to: 1) exchange information on the national programmes on Fast Reactors (FR) and Accelerator Driven Systems (ADS); 2) review the progress since the 36th TWG-FR Annual Meeting, including the status of the actions; 3) consider meeting arrangements for 2004 and 2005; 4) review the Agency's co-ordinated research activities in the field of FRs and ADS, as well as co-ordination of the TWG-FR's activities with other organizations. The participants made presentations on the status of the respective national programmes on FR and ADS development. A summary of the highlights for the period since the 36th TWG-FR Annual Meeting is included in this proceedings. Annex IV contains the Review of National Programs on Fast Reactors and Accelerator Driven Systems (ADS), and the TWG-FR Activity Report for the Period May 2003-April 2004.

X-ray study of a sample of FR0 radio galaxies: unveiling the nature of the central engine

Science.gov (United States)

Torresi, E.; Grandi, P.; Capetti, A.; Baldi, R. D.; Giovannini, G.

2018-06-01

Fanaroff-Riley type 0 radio galaxies (FR0s) are compact radio sources that represent the bulk of the radio-loud active galactic nuclei (AGN) population, but they are still poorly understood. Pilot studies on these sources have been already performed at radio and optical wavelengths: here we present the first X-ray study of a sample of 19 FR0 radio galaxies selected from the Sloan Digital Sky Survey/NRAO VLA Sky Survey/Faint Images of the Radio Sky at Twenty-cm sample of Best & Heckman, with redshift ≤0.15, radio size ≤10 kpc, and optically classified as low-excitation galaxies. The X-ray spectra are modelled with a power-law component absorbed by Galactic column density with, in some cases, a contribution from thermal extended gas. The X-ray photons are likely produced by the jet as attested by the observed correlation between X-ray (2-10 keV) and radio (5 GHz) luminosities, similar to Fanaroff-Riley type I radio galaxies (FRIs). The estimated Eddington-scaled luminosities indicate a low accretion rate. Overall, we find that the X-ray properties of FR0s are indistinguishable from those of FRIs, thus adding another similarity between AGN associated with compact and extended radio sources. A comparison between FR0s and low-luminosity BL Lacs rules out important beaming effects in the X-ray emission of the compact radio galaxies. FR0s have different X-ray properties with respect to young radio sources (e.g. gigahertz-peaked spectrum/compact steep spectrum sources), generally characterized by higher X-ray luminosities and more complex spectra. In conclusion, the paucity of extended radio emission in FR0s is probably related to the intrinsic properties of their jets that prevent the formation of extended structures, and/or to intermittent activity of their engines.