Illocutionary Acts on Liz Gilbert's Dialogue in Eat Pray Love Movie

OpenAIRE

Sri Juriati Ownie, Riandi and

2015-01-01

This thesis deals with the type of illocutionary acts on Liz Gilbert's dialogue inEat Pray Love movie. The objectives of the study were to describe the types ofillocutionary acts used by Liz Gilbert in Eat Pray Love movie, the dominant typeof illocutionary acts used by Liz Gilbert in Eat Pray Love movie and the reasonwhy the dominant type of illocutionary acts occur on Liz Gilbert's dialogue in EatPray Love movie. This research was conducted by using descriptive qualitativedesign. Descriptive...

GILBERT'S SYNDROME - A CONCEALED ADVERSITY FOR PHYSICIANS AND SURGEONS.

Science.gov (United States)

Rasool, Ahsan; Sabir, Sabir; Ashlaq, Muhammad; Farooq, Umer; Khan, Muhammad Zatmar; Khan, Faisal Yousaf

2015-01-01

Gilbert's syndrome (often abbreviated as GS) is most common hereditary cause of mild unconjugated (indirect) hyperbilirubinemia. Various studies have been published depicting clinical and pharmacological effects of Gilbert's syndrome (GS). However GS as a sign of precaution for physician and surgeons has not been clearly established. A systematic study of the available literature was done. Key words of Gilbert's syndrome, hyperbilirubinemia and clinical and pharmacological aspects of GS were searched using PubMed as search engine. Considering the study done in last 40 years, 375 articles were obtained and their abstracts were studied. The criterion for selecting the articles for through study was based on their close relevance with the topic. Thus 40 articles and 2 case reports were thoroughly studied. It was concluded that Gilbert's syndrome has immense clinical importance because the mild hyperbilirubinemia can be mistaken for a sign of occult, chronic, or progressive liver disease. GS is associated with lack of detoxification of few drugs. It is related with spherocytosis, cholithiasis, haemolytic anaemia, intra-operative toxicity, irinotecan toxicity, schizophrenia and problems in morphine metabolism. It also has profound phenotypic effect as well. The bilirubin level of a GS individual can rise abnormally high in various conditions in a person having Gilbert's syndrome. This can mislead the physicians and surgeons towards false diagnosis. Therefore proper diagnosis of GS should be ascertained in order to avoid the concealed adversities of this syndrome.

Isonebula acanthopleon sp.n. (Isopoda, Cymothoidae nuevo ectoparásito de peces curimátidos Isonebula acanthopleon sp.n. (Isopoda, Cymothoidae a new ecto-parasit of Curimatidae

Directory of Open Access Journals (Sweden)

Roberto Taberner

1998-01-01

Full Text Available lsonebula acanthopleon a new species is described and illustrated from specimens of both sexes. The species name refers to the pointed process of the 5th pleonite. Its known hosts are Cyphocharax platanus (Günther, 1880, C. voga (Hensel, 1869 and C. spilotus (Vari, 1987 of the family Curitmatidae (Pisces.

Lewis, Prof. Gilbert Newton

Indian Academy of Sciences (India)

Home; Fellowship. Fellow Profile. Elected: 1935 Honorary. Lewis, Prof. Gilbert Newton. Date of birth: 25 October 1875. Date of death: 24 March 1946. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 January 2018. The 29th Mid-year meeting of the Academy will be held ...

2016 Gilbert W. Beebe symposium

Science.gov (United States)

The National Academies of Sciences, Engineering, and Medicine is hosting the 2016 Gilbert W. Beebe Symposium. Its focus will be on commemorating the 1986 Chernobyl nuclear reactor accident and discussing the achievements of 30 years of studies on the radiation health effects following the accident and future research directions.

Conversion Matrix Analysis of GaAs HEMT Active Gilbert Cell Mixers

DEFF Research Database (Denmark)

Jiang, Chenhui; Johansen, Tom Keinicke; Krozer, Viktor

2006-01-01

In this paper, the nonlinear model of the GaAs HEMT active Gilbert cell mixer is investigated. Based on the model, the conversion gain expression of active Gilbert cell mixers is derived theoretically by using conversion matrix analysis method. The expression is verified by harmonic balance simul...

77 FR 64973 - Don W. Gilbert Hydro Power, LLC; Notice of Application Accepted for Filing With the Commission...

Science.gov (United States)

2012-10-24

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14367-001] Don W. Gilbert...: Original Minor License. b. Project No.: 14367-001. c. Date filed: May 30, 2012. d. Applicant: Don W...(a)-825(r). (2006). h. Applicant Contact: Don W. Gilbert and DeAnn G. Somonich, Don W. Gilbert Hydro...

77 FR 37031 - Don W. Gilbert Hydro Power, LLC; Notice of Application Tendered for Filing With the Commission...

Science.gov (United States)

2012-06-20

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 14367-001] Don W. Gilbert... No.: 14367-001. c. Date filed: May 30, 2012. d. Applicant: Don W. Gilbert Hydro Power, LLC. e. Name... Utility Regulatory Policies Act of 1978, 16 U.S.C. 2705, 2708.] h. Applicant Contact: Don W. Gilbert and...

The Partition of the Gilbert and Ellice Islands

Directory of Open Access Journals (Sweden)

W. David McIntyre

2012-05-01

Full Text Available This paper reviews the separation of the Ellice Islands from the Gilbert and Ellice Islands Colony, in the central Pacific, in 1975: one of the few agreed boundary changes that were made during decolonization. Under the name Tuvalu, the Ellice Group became the world’s fourth smallest state and gained independence in 1978. The Gilbert Islands, (including the Phoenix and Line Islands, became the Republic of Kiribati in 1979. A survey of the tortuous creation of the colony is followed by an analysis of the geographic, ethnic, language, religious, economic, and administrative differences between the groups. When, belatedly, the British began creating representative institutions, the largely Polynesian, Protestant, Ellice people realized they were doomed to permanent minority status while combined with the Micronesian, half-Catholic, Gilbertese. To protect their identity they demanded separation, and the British accepted this after a UN-observed referendum.

Backus-Gilbert inversion of travel time data

Science.gov (United States)

Johnson, L. E.

1972-01-01

Application of the Backus-Gilbert theory for geophysical inverse problems to the seismic body wave travel-time problem is described. In particular, it is shown how to generate earth models that fit travel-time data to within one standard error and having generated such models how to describe their degree of uniqueness. An example is given to illustrate the process.

Portrait Face-Off: Gilbert Stuart vs. Peter Max

Science.gov (United States)

Crumpecker, Cheryl

2012-01-01

When art classes are short and infrequent, it is always a challenge to meet required state and national standards. A unit comparing and contrasting Peter Max's Pop art portraits with the realistic style of Gilbert Stuart's presidential portraits provides an opportunity to address a huge number of these requirements. Focus can change with the age…

"The nature of morality‟ in Gilbert Harman: As appraisal | Oyedola ...

African Journals Online (AJOL)

"The nature of morality‟ in Gilbert Harman: As appraisal. ... characteristic of scientific beliefs, as espoused by Harman has not undermined the nature of ... Nevertheless, the study concedes that the fact that liar man's grounds are appealing, his ...

Temperature-dependent Gilbert damping of Co2FeAl thin films with different degree of atomic order

Science.gov (United States)

Kumar, Ankit; Pan, Fan; Husain, Sajid; Akansel, Serkan; Brucas, Rimantas; Bergqvist, Lars; Chaudhary, Sujeet; Svedlindh, Peter

2017-12-01

Half-metallicity and low magnetic damping are perpetually sought for spintronics materials, and full Heusler compounds in this respect provide outstanding properties. However, it is challenging to obtain the well-ordered half-metallic phase in as-deposited full Heusler compound thin films, and theory has struggled to establish a fundamental understanding of the temperature-dependent Gilbert damping in these systems. Here we present a study of the temperature-dependent Gilbert damping of differently ordered as-deposited Co2FeAl full Heusler compound thin films. The sum of inter- and intraband electron scattering in conjunction with the finite electron lifetime in Bloch states governs the Gilbert damping for the well-ordered phase, in contrast to the damping of partially ordered and disordered phases which is governed by interband electronic scattering alone. These results, especially the ultralow room-temperature intrinsic damping observed for the well-ordered phase, provide fundamental insights into the physical origin of the Gilbert damping in full Heusler compound thin films.

Replication and Pedagogy in the History of Psychology IV: Patrick and Gilbert (1896) on Sleep Deprivation

Science.gov (United States)

Fuchs, Thomas; Burgdorf, Jeffrey

2008-01-01

We report an attempted replication of G. T. W. Patrick and J. A. Gilbert's pioneering sleep deprivation experiment "Studies from the psychological laboratory of the University of Iowa. On the effects of loss of sleep", conducted in 1895/96. Patrick and Gilbert's study was the first sleep deprivation experiment of its kind, performed by some of the…

Statutory Instrument No. 125, The Nuclear Installations (Gilbert and Ellice Islands) Order 1972

International Nuclear Information System (INIS)

1972-01-01

This Order extends to the Gilbert and Ellice Islands, with the exceptions, adaptations and modifications specified in the Schedule to the Order, certain provisions of the Nuclear Installations Act 1965, as amended. It is the 1965 Act which implements the provisions of the Paris Convention and the Brussels Supplementary Convention in the United Kingdom. The provisions so extended impose a duty on the nuclear operator to secure that no nuclear occurrence taking place within the territorial limits of the Gilbert and Ellice Islands causes nuclear injury or damage, and relate to the right to compensation for breach of that duty, the bringing and satisfaction of claims and other matters. (NEA) [fr

On computation of relaxation constant α in Landau–Lifshitz–Gilbert equation

Energy Technology Data Exchange (ETDEWEB)

Gladkov, Serguey, E-mail: sglad@newmail.ru; Bogdanova, Sofiya, E-mail: sonjaf@list.ru

2014-11-15

Due to the quasi-classical kinetic equation (QKE) for the magnon distribution function to calculate the velocity of the domain wall motion V in magnetic fields H>H{sub a}, where H{sub a}− magnetic anisotropy field. Based on the comparison of this formula for Vthe analytic expression of relaxation constant α in Landau–Lifshitz–Gilbert equation was found. We used the detected correlation between the system's entropy and the environment's resistance force, and obtained an expression for the spin-lattice braking force that is applied to the moving domain wall. We calculated the mobility ratio of the domain wall. - Highlights: • The resistance force acting on the domain wall was calculated. • Mobility coefficient of domain wall was calculated. • The strict calculation of relaxation constant in equation Landau-Lifshitz- Gilbert.

Lower Badenian coarse-grained Gilbert deltas in the southern margin of the Western Carpathian Foredeep basin

Science.gov (United States)

Nehyba, Slavomír

2018-02-01

Two coarse-grained Gilbert-type deltas in the Lower Badenian deposits along the southern margin of the Western Carpathian Foredeep (peripheral foreland basin) were newly interpreted. Facies characterizing a range of depositional processes are assigned to four facies associations — topset, foreset, bottomset and offshore marine pelagic deposits. The evidence of Gilbert deltas within open marine deposits reflects the formation of a basin with relatively steep margins connected with a relative sea level fall, erosion and incision. Formation, progradation and aggradation of the thick coarse-grained Gilbert delta piles generally indicate a dramatic increase of sediment supply from the hinterland, followed by both relatively continuous sediment delivery and an increase in accommodation space. Deltaic deposition is terminated by relatively rapid and extended drowning and is explained as a transgressive event. The lower Gilbert delta was significantly larger, more areally extended and reveals a more complicated stratigraphic architecture than the upper one. Its basal surface represents a sequence boundary and occurs around the Karpatian/Badenian stratigraphic limit. Two coeval deltaic branches were recognized in the lower delta with partly different stratigraphic arrangements. This different stratigraphic architecture is mostly explained by variations in the sediment delivery and /or predisposed paleotopography and paleobathymetry of the basin floor. The upper delta was recognized only in a restricted area. Its basal surface represents a sequence boundary probably reflecting a higher order cycle of a relative sea level rise and fall within the Lower Badenian. Evidence of two laterally and stratigraphically separated coarse-grained Gilbert deltas indicates two regional/basin wide transgressive/regressive cycles, but not necessarily of the same order. Provenance analysis reveals similar sources of both deltas. Several partial source areas were identified (Mesozoic

Spin dynamics in ferromagnets: Gilbert dymping and two-magnon scattering

Czech Academy of Sciences Publication Activity Database

Zakeri, Kh.; Lindner, J.; Barsukov, I.; Meckenstock, R.; Farle, M.; von Horsten, U.; Wende, H.; Keune, W.; Rocker, J.; Kalarickal, S.S.; Lenz, K.; Kuch, W.; Baberschke, K.; Frait, Zdeněk

2007-01-01

Roč. 76, č. 10 (2007), 104416/1-104416/8 ISSN 1098-0121 Grant - others:Deutsche Forschunggemeinschaft(DE) Sfb 491; EC Marie Curie Research Training Network(XE) MRTN-CT-2004-005567, 2004-2008 Institutional research plan: CEZ:AV0Z10100520 Keywords : ferromagnetic resonance * Gilbert damping * two-magnon scattering * Fe 3 Si films Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 3.172, year: 2007

Ab Initio theory of the Gilbert damping in random ferromagnetic alloys

Czech Academy of Sciences Publication Activity Database

Drchal, Václav; Turek, I.; Kudrnovský, Josef

2017-01-01

Roč. 30, č. 6 (2017), s. 1669-1672 ISSN 1557-1939 R&D Projects: GA ČR GA15-13436S Institutional support: RVO:68378271 Keywords : Gilbert damping * ferromagnetic alloys * ab initio * nonlocal torques Subject RIV: BM - Solid Matter Physics ; Magnetism OBOR OECD: Condensed matter physics (including formerly solid state physics, supercond.) Impact factor: 1.180, year: 2016

Rapid subsidence and stacked Gilbert-type fan deltas, Pliocene Loreto basin, Baja California Sur, Mexico

Science.gov (United States)

Dorsey, Rebecca J.; Umhoefer, Paul J.; Renne, Paul R.

1995-08-01

Pliocene nonmarine to marine sedimentary rocks exposed in the Loreto basin, Baja California Sur, provide a record of syntectonic subsidence and sedimentation in a transform-rift basin that developed along the western margin of the Gulf of California. A thick sequence of twelve Gilbert-type fan deltas, having a total measured thickness of about 615 m, accumulated near the fault-bounded southwestern margin of this basin. Based on stratal geometries and lithofacies associations, sedimentary rocks are divided into Gilbert-delta topset, foreset and bottomset strata, shell beds and background shallow-marine shelf deposits. Topset strata of each Gilbert-type delta cycle are capped by laterally persistent molluscan shell beds containing diverse assemblages of bivalves, pectens, oysters, gastropods and echinoids. These shell beds are interpreted to be condensed intervals that record sediment starvation during abandonment of the fan-delta plain. Delta abandonment may have been caused by large episodic faulting events, which submerged each pre-existing fan-delta plain, substantially slowed detrital input by drowning of alluvial feeder channels, and created new accommodation space for each new Gilbert-type fan delta. Alternatively, it is possible that delta-plain abandonment was caused by upstream avulsions and autocyclic lateral switching of fan-delta lobes during relatively uniform rates of slip along the basin-bounding fault. Two contrasting, plausible basin models are proposed for the Loreto basin: (1) asymmetric subsidence along a high-angle oblique-slip normal fault, producing a classic half-graben basin geometry with vertically stacked Gilbert-type fan deltas; or (2) lateral stacking and horizontal displacement of strata away from a relatively fixed depocenter due to fault movement in the releasing bend of a listric strike-slip fault. We favor the first model because field relations and simple geometric constraints suggest that most of the total measured section

Galvanomagnetic transport properties and Gilbert damping in ferromagnetic PdCo alloy

Czech Academy of Sciences Publication Activity Database

Kudrnovský, Josef; Drchal, Václav; Turek, I.

2017-01-01

Roč. 30, č. 5 (2017), s. 1367-1370 ISSN 1557-1939 R&D Projects: GA ČR GA15-13436S Institutional support: RVO:68378271 Keywords : anomalous Hall effect * Gilbert damping * partial order * first-principles Subject RIV: BM - Solid Matter Physics ; Magnetism OBOR OECD: Condensed matter physics (including formerly solid state physics, supercond.) Impact factor: 1.180, year: 2016

A Response to Shelby Gilbert's "A Study of Ogbu and Simons' Thesis"

Science.gov (United States)

Hawkins, C. Matthew

2009-01-01

This article responds to Shelby Gilbert's "A Study of Ogbu and Simon's Thesis." The author begins by saying that he thinks that this study of examining Ogbu and Simons' thesis (to investigate school performance of Black immigrant and non-immigrant students in the United States) makes a thought-provoking contribution to overall discussions…

Polynomial-time computability of the edge-reliability of graphs using Gilbert's formula

Directory of Open Access Journals (Sweden)

Marlowe Thomas J.

1998-01-01

Full Text Available Reliability is an important consideration in analyzing computer and other communication networks, but current techniques are extremely limited in the classes of graphs which can be analyzed efficiently. While Gilbert's formula establishes a theoretically elegant recursive relationship between the edge reliability of a graph and the reliability of its subgraphs, naive evaluation requires consideration of all sequences of deletions of individual vertices, and for many graphs has time complexity essentially Θ (N!. We discuss a general approach which significantly reduces complexity, encoding subgraph isomorphism in a finer partition by invariants, and recursing through the set of invariants. We illustrate this approach using threshhold graphs, and show that any computation of reliability using Gilbert's formula will be polynomial-time if and only if the number of invariants considered is polynomial; we then show families of graphs with polynomial-time, and non-polynomial reliability computation, and show that these encompass most previously known results. We then codify our approach to indicate how it can be used for other classes of graphs, and suggest several classes to which the technique can be applied.

Geometric size effect on the extrinsic Gilbert damping in laterally confined magnetic structures

Energy Technology Data Exchange (ETDEWEB)

Song, Hyon-Seok [Department of Emerging Materials Science, DGIST, Daegu 42988 (Korea, Republic of); Lee, Kyeong-Dong [Department of Materials Science and Engineering, KAIST, Daejeon 34141 (Korea, Republic of); You, Chun-Yeol [Department of Physics, Inha University, Incheon 22212 (Korea, Republic of); Park, Byong-Guk [Department of Materials Science and Engineering, KAIST, Daejeon 34141 (Korea, Republic of); Hong, Jung-Il, E-mail: jihong@dgist.ac.kr [Department of Emerging Materials Science, DGIST, Daegu 42988 (Korea, Republic of); Research Centre for Emerging Materials, DGIST, Daegu 42988 (Korea, Republic of)

2016-05-15

We investigated spin dynamics in micron-length scale patterned thin films using the GPU-based micromagnetic simulation program. Spin precessional motion was induced by a Gaussian-pulse magnetic field. The effective Gilbert damping was examined by tracking the precessional motion of the spins, and we found that the damping constant depends on the size and shape of the pattern as well as the externally applied magnetic field. Additional extrinsic damping generated around the edge region was attributed to the dephasing effect between the fundamental spin wave and other spin wave modes. We find that the effect of extrinsic damping could be eliminated by proper adjustments of sample size, external bias field, position, and area of observation. - Highlights: • GPU based micromagnetic simulation of spin dynamics in the micropatterned ferromagnetic films. • Effect of edge regions of the pattern on the Gilbert damping behaviors. • Guide for the analyses of intrinsic magnetic damping in the micron scale patterned films.

Satire politique et sociale dans les opérettes de Gilbert et Sullivan Political and Social Satire in Gilbert and Sullivan’s Operettas

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Anita Cornic

2009-11-01

Full Text Available Although Gilbert and Sullivan’s Operas were first and foremost light, humorous works devised to entertain their mostly middle-class audience, they are characterised by a certain amount of political and social satire, as this paper aims to show through telling examples. Beyond the merry and pleasant songs which remain part and parcel of the English cultural heritage, the shafts directed against the social and political institutions (especially the House of Lords and the class system have lost none of their piquancy and even relevance for today’s audience.

Gilbert Newton Lewis: his influence on physical-organic chemists at Berkeley

Energy Technology Data Exchange (ETDEWEB)

Calvin, M.

1982-03-01

A review is presented of the historical contributions of Gilbert N. Lewis to science and a discussion of the influence of Lewis on the research of the members of the physical-organic staff at Berkeley, including Melvin Calvin, during the twenties, thirties and forties. Some specific examples are discussed. Also, the effect of Lewis, his science and administrative concepts in the creation of excellence in a department of chemistry are reviewed.

Gilbert Newton Lewis: his influence on physical-organic chemists at Berkeley

International Nuclear Information System (INIS)

Calvin, M.

1982-03-01

A review is presented of the historical contributions of Gilbert N. Lewis to science and a discussion of the influence of Lewis on the research of the members of the physical-organic staff at Berkeley, including Melvin Calvin, during the twenties, thirties and forties. Some specific examples are discussed. Also, the effect of Lewis, his science and administrative concepts in the creation of excellence in a department of chemistry are reviewed

Ginzburg-Landau vortices driven by the Landau-Lifshitz-Gilbert equation

Energy Technology Data Exchange (ETDEWEB)

Kurzke, Matthias; Melcher, Christof; Moser, Roger; Spirn, Daniel

2009-06-15

A simplified model for the energy of the magnetization of a thin ferromagnetic film gives rise to a version of the theory of Ginzburg-Landau vortices for sphere-valued maps. In particular we have the development of vortices as a certain parameter tends to 0. The dynamics of the magnetization is ruled by the Landau-Lifshitz-Gilbert equation, which combines characteristic properties of a nonlinear Schroedinger equation and a gradient flow. This paper studies the motion of the vortex centers under this evolution equation. (orig.)

Ginzburg-Landau vortices driven by the Landau-Lifshitz-Gilbert equation

International Nuclear Information System (INIS)

Kurzke, Matthias; Melcher, Christof; Moser, Roger; Spirn, Daniel

2009-01-01

A simplified model for the energy of the magnetization of a thin ferromagnetic film gives rise to a version of the theory of Ginzburg-Landau vortices for sphere-valued maps. In particular we have the development of vortices as a certain parameter tends to 0. The dynamics of the magnetization is ruled by the Landau-Lifshitz-Gilbert equation, which combines characteristic properties of a nonlinear Schroedinger equation and a gradient flow. This paper studies the motion of the vortex centers under this evolution equation. (orig.)

Perfluorocarbons and Gilbert syndrome (phenotype) in the C8 Health Study Population

Energy Technology Data Exchange (ETDEWEB)

Fan, Hongmin [Cancer Center, School of Public Health, West Virginia University, Morgantown, WV 265050-9190 (United States); Department of Epidemiology and Statistics, School of Public Health, Hebei United University, Hebei 063000 (China); Ducatman, Alan [Department of Occupational and Environmental Health, School of Public Health, West Virginia University (United States); Department of Medicine, School of Medicine, West Virginia University (United States); Clinical Translational Science Institute, West Virginia University (United States); Zhang, Jianjun [Department of Biostatistics, School Public Health, West Virginia University (United States)

2014-11-15

Background: Gilbert syndrome (GS) is an inherited defect of bilirubin conjugation, most commonly caused by a gene mutation for the enzyme UGT1A. GS is known to affect the metabolism and excretion of drugs and xenobiotics. Perfluorocarbon compounds (PFCs) are bio-persistent environmental contaminants that affect metabolic regulation. In this study, we examined the associations of GS phenotype and serum PFCs in the C8 Health Study Population. Materials and methods: Using 2005–2006 data from a large PFC-exposure population survey, we compared serum PFCs concentrations between GS and non GS clinical phenotypes, in a cross sectional design, adjusting for standard risk factors, including age, BMI, smoking status, socioeconomic status and gender. Results: Among 10 PFC compounds considered, only perfluorohexanoic acid (PFHxA) was seen at a significantly higher concentration in GS men and women. Conclusion: PFHxA exposure may be associated with GS. Our findings do not support increased exposure in GS for other PFCs. - Highlights: • Most serum PFCs are not associated with clinically evident Gilbert syndrome. • However, serum perfluorohexanoic acid is positively associated. • The investigation addresses the clinical presentation, not the genetic mutation.

Engineering Gilbert damping by dilute Gd doping in soft magnetic Fe thin Films

NARCIS (Netherlands)

Zhang, W.; Jiang, S.; Wong, P.K.J.; Sun, Li; Wang, Y.K.; Wang, Kai; de Jong, Machiel Pieter; van der Wiel, Wilfred Gerard; van der Laan, G.; Zhai, Y.

2014-01-01

By analyzing the ferromagnetic resonance linewidth, we show that the Gilbert damping constant in soft magnetic Fe thin films can be enhanced by ∼6 times with Gd doping of up to 20%. At the same time, the magnetic easy axis remains in the film plane while the coercivity is strongly reduced after Gd

Spin pumping in ion-beam sputtered C o2FeAl /Mo bilayers: Interfacial Gilbert damping

Science.gov (United States)

Husain, Sajid; Kumar, Ankit; Barwal, Vineet; Behera, Nilamani; Akansel, Serkan; Svedlindh, Peter; Chaudhary, Sujeet

2018-02-01

The spin-pumping mechanism and associated interfacial Gilbert damping are demonstrated in ion-beam sputtered C o2FeAl (CFA)/Mo bilayer thin films employing ferromagnetic resonance spectroscopy. The dependence of the net spin-current transportation on Mo layer thickness, 0 to 10 nm, and the enhancement of the net effective Gilbert damping are reported. The experimental data have been analyzed using spin-pumping theory in terms of spin current pumped through the ferromagnet/nonmagnetic metal interface to deduce the real spin-mixing conductance and the spin-diffusion length, which are estimated to be 1.56 (±0.30 ) ×1019m-2 and 2.61 (±0.15 )nm , respectively. The damping constant is found to be 8.8 (±0.2 ) ×10-3 in the Mo(3.5 nm)-capped CFA(8 nm) sample corresponding to an ˜69 % enhancement of the original Gilbert damping 5.2 (±0.6 ) ×10-3 in the Al-capped CFA thin film. This is further confirmed by inserting the Cu dusting layer which reduces the spin transport across the CFA/Mo interface. The Mo layer thickness-dependent net spin-current density is found to lie in the range of 1 -4 MA m-2 , which also provides additional quantitative evidence of spin pumping in this bilayer thin-film system.

Attacking Urban Poverty: The Role of the SNDT Women's University, Mumbai, India--The "Gilbert Hill Programme". Strategies of Education and Training for Disadvantaged Groups.

Science.gov (United States)

Kamath, M.; Udipi, S. A.; Varghese, M. A.

This study examined the role of the SNDT (formerly Shreemati Nathibai Damodar Thackersey) University in reducing poverty in the Gilbert Hill-Gamdevi Dongri area of Mumbai, India. The Gilbert Hill area accommodates around 1 million people, most of whom are migrants form other parts of India. The Department of Post-Graduate Studies and Research in…

Size stratification in a Gilbert delta due to a varying base level: flume experiments.

Science.gov (United States)

Chavarrias, Victor; Orru, Clara; Viparelli, Enrica; Vide, Juan Pedro Martin; Blom, Astrid

2014-05-01

A foreset-dominated Gilbert delta is a delta that is dominated by sediment avalanches (i.e., discontinuous grain flows) over its front. It forms when a river flows into a basin or sea characterized by a flow depth that is much larger than the one in the fluvial reach, and the conditions are such that the transported sediment passing the brinkpoint forms a wedge at the topmost part of the foreset, which results in avalanches down the foreset and a fining upward pattern within the foreset deposit. A Gilbert delta is typically described in terms of a low-slope topset (resulting from deposition over the fluvial reach), a steep-slope foreset (resulting from sediment avalanches over the lee face), and a bottomset (resulting from deposition of fine sediment passing the brinkpoint as suspended load). The objective of the present study is to gain insight into the mechanisms taking part in Gilbert delta formation and progradation under variable base level conditions. In order to do so, three flume experiments were conducted in which the water discharge and sediment feed rate were maintained constant but the base level varied between the experiments: (I) constant base level, (II) a gradually rising base level, and (III) a slowly varying base level. The stratigraphy within the delta deposit was measured using image analysis combined with particle coloring. A steady base level resulted in aggradation over the fluvial reach in order to maintain a slope required to transport the supplied sediment downstream. Sea level rise enhanced the amount of aggradation over the fluvial reach due to the presence of an M1 backwater curve. The aggrading flux to the substrate was slightly coarser than the fed sediment. The sediment at the base of the foreset deposit appeared to become coarser in streamwise direction. Eventually, a fall of the base level induced an M2 backwater curve over the fluvial reach that caused degradation of the fluvial reach. Base level fall first induced erosion of the

Individuação, percepção, ambiente: Merleau-Ponty e Gilbert Simondon Individuation, perception, environment: Merleau-Ponty and Gilbert Simondon

Directory of Open Access Journals (Sweden)

Andréia A. Marin

2009-12-01

Full Text Available Este trabalho trata da individuação e da percepção a partir de duas filosofias contemporâneas: os fundamentos fenomenológicos da percepção (Merleau-Ponty e as relações entre percepção e individuação (Gilbert Simondon. Essas duas composições teóricas podem criar outros espaços de reflexão para as pesquisas em percepção ambiental. A percepção primordial, a importância da corporeidade como redescoberta do mundo vivido e a experiência estética que instaura os espaços de criação nas artes são categorias merleau-pontianas que permitem redimensionar os significados da relação humano-ambiente. O "diálogo" entre essas experiências de criação (discutidas por Merleau-Ponty e os processos de individuação da/com a percepção (Simondon pode suscitar novas abordagens de partida para estudos em percepção ambiental, inspirando novas possibilidades no domínio da Educação Ambiental.This work deals with individuation and perception from two contemporary philosophies. Phenomenological foundations of perception (Merleau-Ponty and the connections between perception and individuation (Gilbert Simondon. These two theoretical compositions may encourage reflections on researches into environmental perception. The primordial perception, the importance of corporeity as the rediscovery of a living world and the aesthetic experience that may restore spaces of creation in the arts are Merleau-Ponty's categories which allow a re-evaluation of the human-environment relationship. The "dialog" between these creation experiences (Merleau-Ponty and the processes of individuation of/with perception (Simondon may suggest new approaches to studies in environmental perception, inspire new possibilities in environmental education.

An Interpretation of Part of Gilbert Gottlieb's Legacy: Developmental Systems Theory Contra Developmental Behavior Genetics

Science.gov (United States)

Molenaar, Peter C. M.

2015-01-01

The main theme of this paper concerns the persistent critique of Gilbert Gottlieb on developmental behavior genetics and my reactions to this critique, the latter changing from rejection to complete acceptation. Concise characterizations of developmental behavior genetics, developmental systems theory (to which Gottlieb made essential…

Preface to anthropogenic fluvial sedimentation: Centennial celebration of G.K. Gilbert's Hydraulic-Mining Débris in the Sierra Nevada

Science.gov (United States)

James, L. Allan; Phillips, Jonathan D.; Lecce, Scott A.

2017-10-01

This special issue celebrates the centennial of the publication of G.K. Gilbert's (1917) monograph, Hydraulic-Mining Débris in the Sierra Nevada, U.S. Geological Survey Professional Paper 105 (PP105). Reasons to celebrate PP105 are manifold. It was the last of four classic monographs that Gilbert wrote in a career that spanned five decades. The monograph, PP105, introduced several important concepts and provided an integrated view of watersheds that was uncommon in its day. It also provided an extreme, lucid example of anthropogenic changes and legacy sediment and how to approach such large-scale phenomena from an objective, quantitative basis.

Generalized Landau-Lifshitz-Gilbert equation for uniformly magnetized bodies

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Serpico, C. [Dipartimento di Ingegneria Elettrica, Universita di Napoli ' FedericoII' , Via Claudio 21, I-80125 Naples (Italy)], E-mail: serpico@unina.it; Mayergoyz, I.D. [ECE Department and UMIACS, University of Maryland, College Park, MD 20742 (United States); Bertotti, G. [Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Turin (Italy); D' Aquino, M. [Dipartimento per le Tecnologie, University of Napoli ' Parthenope' , I-80133 Naples (Italy); Bonin, R. [Istituto Nazionale di Ricerca Metrologica (INRiM), I-10135 Turin (Italy)

2008-02-01

We consider generalized Landau-Lifshitz-Gilbert (LLG) deterministic dynamics in uniformly magnetized bodies. The dynamics take place on the unit sphere {sigma}, and are characterized by a vector field v tangential to {sigma}. By using Helmholtz decomposition on {sigma}, it is proven that v is uniquely defined by two potentials {chi} and {psi}. Potential {chi} can be identified with the free energy of the system, while {psi} describes non-conservative interactions of the system with the environment. The presence of {psi} modifies the usual energy balance of LLG dynamics. Instead of purely relaxation dynamics we may have steady injection of energy through non-conservative interactions. The implications of the new form of the energy balance are discussed in detail.

The role of sediment supply in large-scale stratigraphic architecture of ancient Gilbert-type deltas (Pliocene Siena-Radicofani Basin, Italy)

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Martini, Ivan; Ambrosetti, Elisa; Sandrelli, Fabio

2017-04-01

Aggradation, progradation and retrogradation are the main patterns that define the large-scale architecture of Gilbert-type deltas. These patterns are governed by the ratio between the variation in accommodation space and sediment supply experienced during delta growth. Sediment supply variations are difficult to estimate in ancient settings; hence, it is rarely possible to assess its significance in the large-scale stratigraphic architecture of Gilbert-type deltas. This paper presents a stratigraphic analysis of a Pliocene deltaic complex composed of two coeval and narrowly spaced deltaic branches. The two branches recorded the same tectonic- and climate-induced accommodation space variations. As a result, this deltaic complex represents a natural laboratory for testing the effects of sediment supply variations on the stratigraphic architecture of Gilbert-type deltas. The field data suggest that a sediment supply which is able to counteract the accommodation generated over time promotes the aggradational/progradational attitude of Gilbert-type deltas, as well as the development of thick foreset deposits. By contrast, if the sediment supply is not sufficient for counterbalancing the generated accommodation, an aggradational/retrogradational stratigraphic architecture is promoted. In this case, the deltaic system is forced to withdraw during the different phases of generation of accommodation, with the subsequent flooding of previously deposited sub-horizontal topset deposits (i.e., the delta plain). The subsequent deltaic progradation occurs above these deposits and, consequently, the available space for foresets growth is limited to the water depth between the base-level and the older delta plain. This leads to the vertical stacking of relatively thin deltaic deposits with an overall aggradatational/retrogradational attitude.

Redescription of Teratotrema dubium, Travassos, Artigas & Pereira, 1928 (Callodistomidae: Digenea

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Anna Kohn

1987-03-01

Full Text Available Teratotrema dubium Travassos, Artigas & Pereira, 1928, a digenetic trematode parasite of Pseudocurimata plumbea (Curimatidae: Pisces is redescribed with additional morphological data, confirming the presence of a single testis.Teratotrema dubium Travassos, Artigas & Pereira, 1928, trematódeo digenético parasita de Pseudocurimata plumbea (Curimatidae: Pisces é redescrito com novos dados morfológicos e figuras originais.

Metafísica de la violencia y de la paz. Análisis agustiniano de una definición de Paul Gilbert

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Rosales Meana, Diego I.

2017-01-01

Resumen: En este trabajo me aproximo al problema de la violencia política y de la paz desde un paradigma metafísico. Para ello, seguiré una estrategia argumentativa basada en los postulados agustinianos sobre los que descansa la definición de "violencia" que da el filósofo francés Paul Gilbert en su libro La paciencia de ser. La definición de Gilbert se pondrá a prueba en tres pasos. En primer lugar, exploraré lo que implica hablar de la violencia desde la metafísica concebida ésta como una "...

Bilirubin and beyond : A review of lipid status in Gilbert's syndrome and its relevance to cardiovascular disease protection

NARCIS (Netherlands)

Bulmer, A. C.; Verkade, H. J.; Wagner, K. -H.

Gilbert's syndrome (GS) is characterized by a benign, mildly elevated bilirubin concentration in the blood. Recent reports show clear protection from cardiovascular disease in this population. Protection of lipids, proteins and other macromolecules from oxidation by bilirubin represents the most

Metafísica de la violencia y de la paz. Análisis agustiniano de una definición de Paul Gilbert

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Diego I. Rosales Meana

2017-07-01

Full Text Available En este trabajo intentaré trazar los lineamientos básicos de una metafísica de la violencia y de la paz en Paul Gilbert y Agustín de Hipona. Para ello, explicitaré los postulados agustinianos sobre los que descansa una definición Gilbert da de la violencia en su libro La paciencia de ser. La definición de Gilbert se pondrá a prueba en tres pasos. En primer lugar, exploraré lo que implica hablar de la violencia en metafísica concebida ésta como una «filosofía primera». En segundo lugar, recuperaré la fenomenología que Agustín de Hipona elabora principalmente en De libero arbitrio. En tercer lugar analizaré la libertad política y su sustitución a través de la noción de «legalidad». De este modo, la violencia quedará caracterizada como la renuncia a lo propiamente político, como la afirmación unilateral de la libertad individual y, por lo tanto, la negación de esa misma libertad.

National Geographic Education. An Interview with Gilbert M. Grosvenor, President and Chairman of the Board, National Geographic Society.

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Jumper, Sidney R.

1991-01-01

Presents an interview with Gilbert Grosvenor, president and chairman of the board of the National Geographic Society. Examines student and public ignorance about geography. Describes the Society's Geography Education Project, Geographic Alliance Project, and Education Foundation. Includes Grosvenor's call for greater emphasis on geography in…

Polynomial-time computability of the edge-reliability of graphs using Gilbert's formula

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Thomas J. Marlowe

1998-01-01

Full Text Available Reliability is an important consideration in analyzing computer and other communication networks, but current techniques are extremely limited in the classes of graphs which can be analyzed efficiently. While Gilbert's formula establishes a theoretically elegant recursive relationship between the edge reliability of a graph and the reliability of its subgraphs, naive evaluation requires consideration of all sequences of deletions of individual vertices, and for many graphs has time complexity essentially Θ (N!. We discuss a general approach which significantly reduces complexity, encoding subgraph isomorphism in a finer partition by invariants, and recursing through the set of invariants.

Situation Report--Dominican Republic, Ethiopia, Gilbert and Ellice Islands, Laos, Liberia, Republic of Vietnam, Seychelles, Tahiti (French Polynesia).

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International Planned Parenthood Federation, London (England).

Data relating to population and family planning in eight foreign countries are presented in these situation reports. Countries included are Dominical Republic, Ethiopia, Gilbert and Ellice Islands, Laos, Liberia, Republic of Vietnam, Seychelles, and Tahiti (French Polynesia). Information is provided, where appropriate and available, under two…

Constitutional hepatic dysfunction (Gilbert's disease), about eleven cases studied in the Hospital Obrero de Lima

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León Navarro, Oswaldo

2014-01-01

We report eleven cases of Constitutional Hepatic dysfunction (Gilbert's disease), studied at the Department of Gastroenterology of the Hospital Obrero de Lima. We place this disease in the group of non Chronicles Hemolytic jaundice due to congenital defects in bilirubin metabolism. It is noted, according to the new concepts of bilirubin metabolism, the pathogenic mechanism of this disease is related to deficient activity of glucuronyltransferase, the enzyme responsible for bilirubin conjugati...

Combined effect of regulatory polymorphisms on transcription of UGT1A1 as a cause of Gilbert syndrome

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Sato Hiroshi

2010-06-01

Full Text Available Abstract Background Gilbert syndrome is caused by defects in bilirubin UDP-glucuronosyltransferase (UGT1A1. The most common variation believed to be involved is A(TA7TAA. Although several polymorphisms have been found to link with A(TA7TAA, the combined effect of regulatory polymorphisms in the development of Gilbert syndrome remains unclear. Methods In an analysis of 15 patients and 60 normal subjects, we detected 14 polymorphisms and nine haplotypes in the regulatory region. We classified the 4-kbp regulatory region of the patients into: the TATA box including A(TA7TAA; a phenobarbital responsive enhancer module including c.-3275T>G; and a region including other ten linked polymorphisms. The effect on transcription of these polymorphisms was studied. Results All haplotypes with A(TA7TAA had c.-3275T>G and additional polymorphisms. In an in-vitro expression study of the 4-kbp regulatory region, A(TA7TAA alone did not significantly reduce transcription. In contrast, c.-3275T>G reduced transcription to 69% of that of wild type, and the linked polymorphisms reduced transcription to 88% of wild type. Transcription of the typical regulatory region of the patients was 56% of wild type. Co-expression of constitutive androstane receptor (CAR increased the transcription of wild type by a factor of 4.3. Each polymorphism by itself did not reduce transcription to the level of the patients, however, even in the presence of CAR. Conclusions These results imply that co-operation of A(TA7TAA, c.-3275T>G and the linked polymorphisms is necessary in causing Gilbert syndrome.

Direct detection of metal-insulator phase transitions using the modified Backus-Gilbert method

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Ulybyshev Maksim

2018-01-01

Full Text Available The detection of the (semimetal-insulator phase transition can be extremely difficult if the local order parameter which characterizes the ordered phase is unknown. In some cases, it is even impossible to define a local order parameter: the most prominent example of such system is the spin liquid state. This state was proposed to exist in the Hubbard model on the hexagonal lattice in a region between the semimetal phase and the antiferromagnetic insulator phase. The existence of this phase has been the subject of a long debate. In order to detect these exotic phases we must use alternative methods to those used for more familiar examples of spontaneous symmetry breaking. We have modified the Backus-Gilbert method of analytic continuation which was previously used in the calculation of the pion quasiparticle mass in lattice QCD. The modification of the method consists of the introduction of the Tikhonov regularization scheme which was used to treat the ill-conditioned kernel. This modified Backus-Gilbert method is applied to the Euclidean propagators in momentum space calculated using the hybrid Monte Carlo algorithm. In this way, it is possible to reconstruct the full dispersion relation and to estimate the mass gap, which is a direct signal of the transition to the insulating state. We demonstrate the utility of this method in our calculations for the Hubbard model on the hexagonal lattice. We also apply the method to the metal-insulator phase transition in the Hubbard-Coulomb model on the square lattice.

Comics and the Structure of Childhood Feeling: Sublimation and the Play of Pretending in Gilbert Hernandez's "Marble Season"

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Lewkowich, David

2016-01-01

In this paper, I study the narrative structure of comics as a means to describe the ways that indeterminate modes of representation can allow the reader to imagine that which in childhood can never be fully expressed. Analyzing a number of panels from Gilbert Hernandez's graphic novel, "Marble Season," I describe a conceptual link…

Author's Response to Commentaries on: "An Interpretation of Part of Gilbert Gottlieb's Legacy: Developmental Systems Theory Contra Developmental Behavior Genetics"

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Molenaar, Peter C. M.

2015-01-01

In this article, Peter Molenaar responds to three commentaries (this issue) on his article, "An Interpretation of Part of Gilbert Gottlieb's Legacy: Developmental Systems Theory Contra Developmental Behavior Genetics." He addresses aspects of relational developmental systems (RDS) mentioned and questions raised in each of the…

Differential Treatment of Pregnancy in Employment: The Impact of "General Electric Co. v. Gilbert" and "Nashville Gas Co. v. Satty."

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Taylor, Ellen T.

1978-01-01

After discussing the facts and reasoning of the two cases (General Electric Co. vs Gilbert and Nashville Gas Co. vs Satty), the author argues that the decisions are largely the product of pregnancy stereotypes and that the Court's reasoning is flawed and should not be applied outside the context of pregnancy. Journal availability: see EA 511 481.…

Integrative taxonomy detects cryptic and overlooked fish species in a neotropical river basin.

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Gomes, Laís Carvalho; Pessali, Tiago Casarim; Sales, Naiara Guimarães; Pompeu, Paulo Santos; Carvalho, Daniel Cardoso

2015-10-01

The great freshwater fish diversity found in the neotropical region makes management and conservation actions challenging. Due to shortage of taxonomists and insufficient infrastructure to deal with such great biodiversity (i.e. taxonomic impediment), proposed remedies to accelerate species identification and descriptions include techniques that combine DNA-based identification and concise morphological description. The building of a DNA barcode reference database correlating meristic and genetic data was developed for 75 % of the Mucuri River basin's freshwater fish. We obtained a total of 141 DNA barcode sequences from 37 species belonging to 30 genera, 19 families, and 5 orders. Genetic distances within species, genera, and families were 0.74, 9.5, and 18.86 %, respectively. All species could be clearly identified by the DNA barcodes. Divergences between meristic morphological characteristics and DNA barcodes revealed two cryptic species among the Cyphocharax gilbert and Astyanax gr. bimaculatus specimens, and helped to identify two overlooked species within the Gymnotus and Astyanax taxa. Therefore, using a simplified model of neotropical biodiversity, we tested the efficiency of an integrative taxonomy approach for species discovery, identification of cryptic diversity, and accelerating biodiversity descriptions.

Informational Ontology: The Meaning of Gilbert Simondon’s Concept of Individuation

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Andrew Iliadis

2013-09-01

Full Text Available The French philosopher Gilbert Simondon (1924-1989 was the first true philosopher of information, yet he remains relatively unknown outside of his native France. This situation is curious, given the warm reception his work has received from a small group of internationally renowned thinkers. Simondon’s lifelong project was to expound the appearance of what I call an “informational ontology,” a subject that deserves to be addresses at length. This article limits itself by focusing on three aspects of Simondon’s philosophy of information. First, it situates Simondon within the French intellectual scene in post-World War II Europe to get sense of his cultural milieu. Second, it positions Simondon’s work in the context of the American cybernetic tradition from which it emerged. Finally, it offers an exegesis of Simondon’s informational ontology, a radically new materialism that stands to change contemporary debates surrounding issues related to information, communication, and technology.

Transient analysis of scattering from ferromagnetic objects using Landau-Lifshitz-Gilbert and volume integral equations

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Sayed, Sadeed Bin

2016-11-02

An explicit marching on-in-time scheme for analyzing transient electromagnetic wave interactions on ferromagnetic scatterers is described. The proposed method solves a coupled system of time domain magnetic field volume integral and Landau-Lifshitz-Gilbert (LLG) equations. The unknown fluxes and fields are discretized using full and half Schaubert-Wilton-Glisson functions in space and bandlimited temporal interpolation functions in time. The coupled system is cast in the form of an ordinary differential equation and integrated in time using a PE(CE)m type linear multistep method to obtain the unknown expansion coefficients. Numerical results demonstrating the stability and accuracy of the proposed scheme are presented.

Transient analysis of scattering from ferromagnetic objects using Landau-Lifshitz-Gilbert and volume integral equations

KAUST Repository

Sayed, Sadeed Bin; Ulku, Huseyin Arda; Bagci, Hakan

2016-01-01

An explicit marching on-in-time scheme for analyzing transient electromagnetic wave interactions on ferromagnetic scatterers is described. The proposed method solves a coupled system of time domain magnetic field volume integral and Landau-Lifshitz-Gilbert (LLG) equations. The unknown fluxes and fields are discretized using full and half Schaubert-Wilton-Glisson functions in space and bandlimited temporal interpolation functions in time. The coupled system is cast in the form of an ordinary differential equation and integrated in time using a PE(CE)m type linear multistep method to obtain the unknown expansion coefficients. Numerical results demonstrating the stability and accuracy of the proposed scheme are presented.

Review: Devan Pillay, Gilbert M. Khadiagala, Prishani Naidoo and Roger Southall (eds, New South African Review 4: A Fragile Democracy – Twenty Years On (2014

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Ian Taylor

2015-01-01

Full Text Available Review of the edited volume:Devan Pillay, Gilbert M. Khadiagala, Prishani Naidoo and Roger Southall (eds, New South African Review 4: A Fragile Democracy – Twenty Years On, Johannesburg: Wits University Press, 2014, ISBN 9781868147632, 380 pp.

Individuation, Cosmogenesis and Technology: Sri Aurobindo and Gilbert Simondon

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Debashish Banerji

2015-02-01

Full Text Available The turn of the 19th/20th centuries saw a number of philosophers of conscious evolution emerging from different cultural backgrounds. This paper argues that this phenomenon, which has sometimes been seen as a philosophical consequence of Darwin’s evolutionary theory in the life sciences, is more importantly related to the enhanced scope of human subjectivity made possible by technology at this time. Yet technology remains the “unthought within the thought” of its times, an ambiguous presence, derided for its alienating effects and praised for its enhancement of human capacities and comforts. A later generation of thinkers, belonging to the post World War II era renews the thought of conscious evolution, now in engagement with new technologies of a planet spanning scope. This essay considers the ideas of these two generations of thinkers, focusing on Sri Aurobindo (1872-1950 from the earlier generation and Gilbert Simondon (1924-1989 from the more recent era, questioning the consequences of contemporary technology in their thoughts, goals and practices. In developing the historical continuity of ideas, it tracks the question of technology from the earlier to the later generation, highlighting the understanding of both its promise and its ills and engaging with it the possibilities of conscious evolution.

LA ESPIRITUALIDAD EN LA OBRA DE GILBERT SIMONDON

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María de Lourdes Solís Plancarte

2013-06-01

Full Text Available El objetivo de este artículo es presentar el tema de la espiritualidad, una de las tesis más polémicas dentro del pensamiento de Gilbert Simondon. Planteamos la espiritualidad a partir de  la obra más conocida de Simondon, El modo de existencia de los objetos técnicos (MEOT, así como de la última parte de su obra capital La individuación a la luz de las nociones de forma e información (ILFI, junto con el curso Imagination et invention. Se argumenta que la espiritualidad emerge de la relación del individuo con otros individuos y con el mundo, es decir, la transindividualidad, fase que atraviesa la composición de un sistema de relaciones que se extiende más allá de la percepción humana, bajo la forma de puntos claves. En otras palabras, intentamos mostrar cierto vínculo entre lo transindividual en ILFI y los puntos-clave en MEOT. El artículo ofrece una breve introducción al autor y su obra,  describe el sistema afectivo-emotivo que Jung descubrió en su análisis del subconsciente, para abordar el tema de la espiritualidad bajo la égida del mundo mágico primitivo, realizado a través de ciertos enfoques Mircea Eliade. El plano de la cultura es discutido desde la individuación psíquica colectiva.

Influence of the Gilbert damping constant on the flux rise time of write head fields

International Nuclear Information System (INIS)

Ertl, Othmar; Schrefl, Thomas; Suess, Dieter; Schabes, Manfred E.

2005-01-01

Magnetic recording at fast data rates requires write heads with rapid rise times of the magnetic flux during the write process. We present three-dimensional (3D) micromagnetic finite element calculations of an entire ring head including 3D coil geometry during the writing of magnetic bits in granular media. The simulations demonstrate how input current profiles translate into magnetization processes in the head and which in turn generate the write head field. The flux rise time significantly depends on the Gilbert damping constant of the head material. Low damping causes incoherent magnetization processes, leading to long rise times and low head fields. High damping leads to coherent reversal of the magnetization in the head. As a consequence, the gap region can be quickly saturated which causes high head fields with short rise times

Replication and Pedagogy in the History of Psychology IV: Patrick and Gilbert (1896) on Sleep Deprivation

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Fuchs, Thomas; Burgdorf, Jeffrey

2008-05-01

We report an attempted replication of G. T. W. Patrick and J. A. Gilbert’s pioneering sleep deprivation experiment ‘Studies from the psychological laboratory of the University of Iowa. On the effects of loss of sleep’, conducted in 1895/96. Patrick and Gilbert’s study was the first sleep deprivation experiment of its kind, performed by some of the first formally trained psychologists. We attempted to recreate the original experience in two subjects, using similar apparatus and methodology, and drawing direct comparisons to the original study whenever possible. We argue for a strong influence of an ‘Americanized’ Wundtian psychology on Patrick and Gilbert, a claim supported biographically by their education and by their experimental methods. The replication thus opens interesting new perspectives, which are unlikely to be generated by any other historical approach.

ELEMENTOS SOBRE LA HISTORIA DEL CONCEPTO DE DESARROLLO SEGÚN LOS ECONOMISTAS THEOTONIO DOS SANTOS Y GILBERT RIST

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Francisco Javier Criollo

2009-01-01

Full Text Available El artículo tiene como propósito presentar la percepción y las inquietudes que dos importantes pensadores económicos ofrecen a través de sus obras sobre dependencia económica y desarrollo, como punto de partida en la reflexión que se ha iniciado sobre algunos conceptos que se convierten en clave para una discusión o debate. El estudio de una de las obras de Theotonio Dos Santos y otra de Gilbert Rist sobre la temática mencionada, le deja al grupo de investigación importantes inquietudes para la construcción de un pensamiento propio y alternativo.

APC-PC Combined Scheme in Gilbert Two State Model: Proposal and Study

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Bulo, Yaka; Saring, Yang; Bhunia, Chandan Tilak

2017-04-01

In an automatic repeat request (ARQ) scheme, a packet is retransmitted if it gets corrupted due to transmission errors caused by the channel. However, an erroneous packet may contain both erroneous bits and correct bits and hence it may still contain useful information. The receiver may be able to combine this information from multiple erroneous copies to recover the correct packet. Packet combining (PC) is a simple and elegant scheme of error correction in transmitted packet, in which two received copies are XORed to obtain the bit location of erroneous bits. Thereafter, the packet is corrected by bit inversion of bit located as erroneous. Aggressive packet combining (APC) is a logic extension of PC primarily designed for wireless communication with objective of correcting error with low latency. PC offers higher throughput than APC, but PC does not correct double bit errors if occur in same bit location of erroneous copies of the packet. A hybrid technique is proposed to utilize the advantages of both APC and PC while attempting to remove the limitation of both. In the proposed technique, applications of APC-PC on Gilbert two state model has been studied. The simulation results show that the proposed technique offers better throughput than the conventional APC and lesser packet error rate than PC scheme.

Gilbert Simondon’s ‘Transduction’ as Radical Immanence in Performance

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Paulo de Assis

2017-12-01

Full Text Available Transduction is Gilbert Simondon’s key concept for understanding processes of differentiation and of individuation in a number of fields, including scientific disciplines, social and human sciences, technological devices, and artistic domains. Originating from the sciences and crucially developed in its philosophical implications by Simondon, transduction refers to a dynamic operation by which energy is actualized, moving from one state to the next, in a process that individuates new materialities. This chapter appropriates this concept for musical practice, aiming at establishing a foundational conceptual layer for a broader research effort that crucially includes artistic practice—both composition and performance—as its starting and end points. After an introductory depiction of what transduction might mean for a music performer, this paper focuses on the presentation of different definitions of transduction, mainly stemming from Simondon himself, but including two further extensions: one to Deleuze’s concept of haecceity (and via Deleuze, to my own micro-haecceity, the other to Brian Massumi’s notion of corporeality. Keeping in mind the potential of these definitions for the making of music, this essay explores eight different, yet complementary ways of thinking transduction, which are presented in a growing scale of complexity from the incandescent light bulb (3.1. to the intricacies of decision-making in living organisms (3.8., passing by the question of time and temporality (3.2., thermodynamics (3.3., information theory (3.4., a redesigned theory of haecceities (3.5., Riemannian topology (3.6., and corporeality (3.7.. All these topics are presented here in short, as opening gates to wider fields of inquiry, suggesting future avenues of research, rather than claiming to offer finished thought.

Ideias sobre progresso técnico em Vilém Flusser e Gilbert Simondon

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Angélica Beatriz Castro Guimarães

2013-07-01

Full Text Available http://dx.doi.org/10.5007/1807-9288.2013v9n1p172   Esse artigo apresenta algumas ideias sobre o progresso técnico e a relação humano-máquina em Vilém Flusser e Gilbert Simondon. Os dois autores apresentam conceitos bem diferentes sobre a técnica, mas ambos projetam seus argumentos para a situação de intensificação técnica que ocorre a partir de meados do século XX. Simondon pensa a geração de objetos técnicos como modulação de intensidades. Flusser concebe o progresso técnico como uma escalada de abstração que não se encerra como modelo linear e acumulativo. Os dois autores pensam a situação de desorientação diante da aparente intencionalidade dos objetos técnicos. A partir dos conceitos propostos é possível pensar sobre a modulação do fluxo técnico pela arte no campo da sensibilidade.

Spectral Resolution for Five-Element, Filtered, X-Ray Detector (XRD) Arrays Using the Methods of Backus and Gilbert

International Nuclear Information System (INIS)

FEHL, DAVID LEE; BIGGS, F.; CHANDLER, GORDON A.; STYGAR, WILLIAM A.

2000-01-01

The generalized method of Backus and Gilbert (BG) is described and applied to the inverse problem of obtaining spectra from a 5-channel, filtered array of x-ray detectors (XRD's). This diagnostic is routinely fielded on the Z facility at Sandia National Laboratories to study soft x-ray photons ((le)2300 eV), emitted by high density Z-pinch plasmas. The BG method defines spectral resolution limits on the system of response functions that are in good agreement with the unfold method currently in use. The resolution so defined is independent of the source spectrum. For noise-free, simulated data the BG approximating function is also in reasonable agreement with the source spectrum (150 eV black-body) and the unfold. This function may be used as an initial trial function for iterative methods or a regularization model

Gilbert damping constant of FePd alloy thin films estimated by broadband ferromagnetic resonance

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Kawai T.

2014-07-01

Full Text Available Magnetic relaxation of FePd alloy epitaxial thin films with very flat surfaces prepared on MgO(001 substrate are measured by in-plane broadband ferromagnetic resonance (FMR. Magnetic relaxation is investigated as Δω for FMR absorption peak by frequency sweep measurements. ΔH is calculated by using the measured Δω. Gilbert damping constant, α, is estimated by employing a straight line fitting of the resonant frequency dependence of ΔH. The α value for an FePd film deposited at 200 ˚C, which shows disordered A1 structure, is 0.010 and ΔH0, which is frequency independent part of ΔH, is 10 Oe. The α value for a film annealed at 400 ˚C, which shows partially L10 ordered structure (S=0.32, is 0.013, which is slightly larger than that for the disorder A1 structure film. However, ΔH0 for the annealed film is 85 Oe, which is much larger than that for the film with disordered structure. The results show that the magnetic relaxation of the 400 ˚C annealed film is mainly dominated by ΔH0, which is related with magnetic in-homogeneity caused by the appearance of perpendicular anisotropy of partially ordered phase.

Antimalarial Activity of the Chemical Constituents of the Leaf Latex of Aloe pulcherrima Gilbert and Sebsebe.

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Teka, Tekleab; Bisrat, Daniel; Yeshak, Mariamawit Yonathan; Asres, Kaleab

2016-10-28

Malaria is one of the three major global public health threats due to a wide spread resistance of the parasites to the standard antimalarial drugs. Considering this growing problem, the ethnomedicinal approach in the search for new antimalarial drugs from plant sources has proven to be more effective and inexpensive. The leaves of Aloe pulcherrima Gilbert and Sebsebe, an endemic Ethiopian plant, are locally used for the treatment of malaria and other infectious diseases. Application of the leaf latex of A. pulcherrima on preparative silica gel TLC led to the isolation of two C -glycosylated anthrones, identified as nataloin ( 1 ) and 7-hydroxyaloin ( 2 ) by spectroscopic techniques (UV, IR, ¹H- and 13 C-NMR, HR-ESIMS). Both the latex and isolated compounds displayed antimalarial activity in a dose-independent manner using a four-day suppressive test, with the highest percent suppression of 56.2% achieved at 200 mg/kg/day for 2 . The results indicate that both the leaf latex of A. pulcherrima and its two major constituents are endowed with antiplasmodial activities, which support the traditional use of the leaves of the plant for the treatment of malaria.

The absence of intraband scattering in a consistent theory of Gilbert damping in pure metallic ferromagnets.

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Edwards, D M

2016-03-02

Damping of magnetization dynamics in a ferromagnetic metal, arising from spin-orbit coupling, is usually characterised by the Gilbert parameter α. Recent calculations of this quantity, using a formula due to Kambersky, find that it is infinite for a perfect crystal owing to an intraband scattering term which is of third order in the spin-orbit parameter ξ. This surprising result conflicts with recent work by Costa and Muniz who study damping numerically by direct calculation of the dynamical transverse susceptibility in the presence of spin-orbit coupling. We resolve this inconsistency by following the approach of Costa and Muniz for a slightly simplified model where it is possible to calculate α analytically. We show that to second order in ξ one retrieves the Kambersky result for α, but to higher order one does not obtain any divergent intraband terms. The present work goes beyond that of Costa and Muniz by pointing out the necessity of including the effect of long-range Coulomb interaction in calculating damping for large ξ. A direct derivation of the Kambersky formula is given which shows clearly the restriction of its validity to second order in ξ so that no intraband scattering terms appear. This restriction has an important effect on the damping over a substantial range of impurity content and temperature. The experimental situation is discussed.

Genetic susceptibility to Gilbert's syndrome in a valencian population; efficacy of the fasting test.

Science.gov (United States)

Torres, A K; Escartín, N; Monzó, C; Guzmán, C; Ferrer, I; González-Muñoz, C; Peña, P; Monzó, V; Marcaida, G; Rodríguez-López, R

To describe the populational distribution of the UGT1A1*28 variant (genetic variant code rs8175347) located in the promotor of the UGT gene and correlate its genotypes with the results of the fasting test, as well as its relationship with the biochemical disorder of Gilbert's syndrome (GS) in a Valencian population. We studied the prevalence of the genotypes (TA) 6/6 (TA) 6/7 and (TA) 7/7 of the deleterious variant rs8175347 in 144 patients with hyperbilirubinemia, 38 of whom had previously undergone the fasting test to diagnose GS, and in 150 control patients. By analysing the genomic region of the TATA box of the UGT1A1 gene promotor using Sanger sequencing, we established the correlation between the rs8175347 genotypes and the fasting test results and with the patients' biochemical disorders. The rate of heterozygosity of allele (TA) 7 in the control population was 32% and increased to 87.59% among the patients with suspected GS. The rate of genotype TA 7/7 was 81.94% among the patients with hyperbilirubinemia, compared with 11.33% in the control patients. The fasting test showed a 15.79% rate of false negatives and a 5.26% rate of false positives. The high frequency of allele (TA) 7 among the Valencian control population, almost double the 5% reported for European control patients, confirms the high rate of GS reported in the Spanish population, without observing significant differences between the geographical ends of the country. The efficacy and reliability of the fasting test for the diagnosis of GS is questionable. Copyright © 2016 Elsevier España, S.L.U. and Sociedad Española de Medicina Interna (SEMI). All rights reserved.

Embryonic and larval development in barfin flounder Verasper moseri (Jordan and Gilbert)

Science.gov (United States)

Du, Rongbin; Wang, Yongqiang; Jiang, Haibin; Liu, Liming; Wang, Maojian; Li, Tianbao; Zhang, Shubao

2010-01-01

Broodstock of Verasper moseri (Jordan and Gilbert) aged 3-4 years old were selected, and reinforced cultivation was conducted to promote maturation under controlled water temperature and photoperiod conditions. Fertilized eggs were obtained by artificial fertilization, and the development of embryos, larvae and juveniles was observed continuously. The results showed that the fertilized eggs of V. moseri were spherical, with transparent yolk and homogeneous bioplasm, and had no oil globule inside. The average diameter of the eggs was 1.77±0.02 mm. The eggs of V. moseri were buoyant in water with salinity above 35. The cleavage type was typical discoidal. Young pigment cells appeared when olfactory plates began to form. Hatching occurred at 187 h after fertilization at a water temperature of 8.5°C. The newly hatched larvae, floating on the water surface, were transparent with an average total length of 4.69±0.15 mm. During the cultivation period, when the water temperature was raised from 9 to 14.5°C, 4-day old larvae showed more melanophores on the body surface, making the larvae gray in color. The pectoral fins began to develop, which enabled the larvae to swim horizontally and in a lively manner. On days 7-8, the digestive duct formed. The yolk sac was small and black. The yolk sac was absorbed on day 11. Larvae took food actively, and body length and body height clearly increased. The rudiments of dorsal and anal fin pterygiophores were discernible and caudal fin ray elements formed on day 19. On day 24, the larval notochord flexed upwards, and the rays of unpaired fins began to differentiate. Pigment cells converged on the dorsal and anal fin rays, and the mastoid teeth on the mandible appeared. On day 29, the left eyes of juveniles began to move upwards. Depigmentation began in some juveniles and they became sandy brown in color on day 37. Most juveniles began to settle on the bottom of the tank. The left eyes of juveniles migrated completely to the right

The damping of spin motions in ultrathin films: Is the Landau-Lifschitz-Gilbert phenomenology applicable?

International Nuclear Information System (INIS)

Mills, D.L.; Arias, Rodrigo

2006-01-01

The Landau-Lifschitz-Gilbert (LLG) equation is used widely in device design to describe spin motions in magnetic nanoscale structures. The damping term in this equation plays an essential role in the description of the magnetization dynamics. The form of this term is simple and appealing, but it is derived through use of elementary phenomenological considerations. An important question is whether or not it provides a proper description of the damping of the magnetization in real materials. Recently, it was predicted that a mechanism called two magnon damping should contribute importantly to linewidths and consequently spin damping in ultrathin ferromagnetic films. This process yields ferromagnetic resonance (FMR) linewidths whose frequency dependence is incompatible with the linear variation expected from the Landau-Lifschitz equation. This prediction has now been confirmed experimentally. Furthermore, subsequent experimental and theoretical studies have demonstrated that the damping rate depends strongly on wave vector as well. It is thus clear that for many samples, the LLG equation fails to account for the systematics of the damping of the magnetization in ultrathin ferromagnets, at the linear response level. The paper will review the recent literature on this topic relevant to this issue. One must then inquire into the nature of a proper phenomenology to describe these materials. At the linear response level, the theory of the two magnon mechanism is sufficiently complete that one can describe the response of these systems without resort to LLG phenomenology. However, currently there is very great interest in the large amplitude response of the magnetization in magnetic nanostructures. In the view of the authors, it is difficult to envision a generally applicable extension of linear response theory into the large amplitude regime

Epidemiología de las lesiones por presión en los pacientes internados en el Hospital de Niños Dr. Roberto Gilbert Elizalde desde el mes de enero del 2013 a junio del 2014.

OpenAIRE

Neira Morante, Martha Leticia

2015-01-01

Determinar la epidemiología de las lesiones por presión en los pacientes internados en el hospital de niños Dr. Roberto Gilbert E. desde enero de 2013 a junio de 2014. -Objetivos Específicos. ¿ Identificar la causa de las lesiones por presión ¿ Establecer la edad, sexo, tipo y ubicación de la lesión más frecuentes. ¿ Relacionar el estado nutricional de los pacientes y la aparición de lesiones por presión. ¿ Describir la respuesta al tratamiento empleado Método. Estudio pr...

Hiperbilirrubinemia neonatal prolongada devido à associação entre síndrome de Gilbert e doença hemolítica por incompatibilidade RhD Persistent neonatal hyperbilirubinemia resulting from Gilbert's syndrome in association with RhD hemolytic disease

Directory of Open Access Journals (Sweden)

Fernando P. Facchini

2005-10-01

Full Text Available OBJETIVO: Relatar associação infreqüente de patologia que cause aumento considerável de produção de bilirrubina e outra diminuição importante na sua excreção. DESCRIÇÃO: Mãe tercigesta, Rh negativo. Na primeira gestação, gerou recém-nascido normal, de termo, não tendo recebido imunoglobulina humana anti-RhD. A segunda gestação complicou-se por isoimunização Rh, dando à luz neonato de termo, o qual necessitou três exsanguinotransfusões e faleceu com 8 dias de vida. Na gestação atual, conseguiu dar à luz a termo recém-nascido tipo ORh positivo, Coombs direto positivo, bilirrubina de cordão 6,5 mg/dl e hematócrito 44%. Com 5 horas de vida, estava ictérico, tendo sido iniciados fenobarbital (por 3 dias e fototerapia intensiva. A hiperbilirrubinemia foi logo controlada, porém ascendia rapidamente sempre que a fototerapia era suspensa. No 10° dia de vida, a criança foi transfundida por anemia importante. Em vista da persistência da icterícia, no 13° dia de vida pensou-se em associação com síndrome de Gilbert, e o seqüenciamento de DNA foi solicitado. O resultado mostrou genótipo mutante homozigoto UDPT1A1[TA]7TAA. Permaneceu em fototerapia até o 17° dia de vida. Recebeu alta no dia seguinte, após controle de bilirrubinemia. Voltou para acompanhamento ambulatorial e apresentou desenvolvimentos pondo-estatural e neurológico normais. COMENTÁRIOS: O caso ressalta a importância da associação do aumento de produção/diminuição de excreção de bilirrubina na gênese de hiperbilirrubinemias prolongadas, intensas e passíveis de causar kernicterus, se não tratadas vigorosamente. Demonstra, ainda, a eficácia da fototerapia intensiva, reduzindo os riscos de tratamentos mais agressivos. Ressalta, também, a importância do acompanhamento das icterícias neonatais até a completa remissão dos sintomas.OBJECTIVE: To report on an infrequent association of pathologies causing considerable increase in bilirubin

New wine in old bottles: the historiography of a paradigm change

Science.gov (United States)

Sack, Dorothy

1992-08-01

This paper historiographically analyzes the enunciation of the American, systemic-process geomorphology paradigm in the mid-20th century, with particular focus on notions concerning Gilbert and systems. Selected contributions by Strahler, Hack, and Chorley are emphasized because of their influential roles in pronouncing and elaborating process geomorphology. Articulation of the emerging paradigm contributed to the installation of Gilbert as its figurehead and established systems analysis as a fundamental tool. Gilbert was an appropriate figurehead for the new paradigm because he had worked outside of the Davisian paradigm during the Davisian era, had done process geomorphology, had applied the method of systems analysis, and was very well respected. Identifying Gilbert as the archetypal process geomorphologist helped sanction the process paradigm, distance it from Davisian geomorphology, and ease the paradigm change. Strahler's portrayal of Gilbert, however, incorrectly implies that Gilbert had actively advocated process geomorphology in a competition with Davis and the Davisian geographical cycle. Gilbert, Strahler, and Hack each applied the thermodynamically based method of systems analysis to process geomorphology, but Chorley advocated von Bertalanffy's philosophically based general system theory instead. Gilbert, Strahler, and Hack did not apply general system theory to geomorphology, as Chorley suggested they had. Recognizing these and other notions as revisionist aids in recovering a truer understanding of the actual contributions of people important in the history of geomorphology.

Obituary: James Gilbert Baker, 1914-2005

Science.gov (United States)

Baker, Neal Kenton

2005-12-01

Dr. James Gilbert Baker, renowned astronomer and optical physicist, died 29 June 2005 at his home in Bedford, New Hampshire at the age of 90. Although his scientific interest was astronomy, his extraordinary ability in optical design led to the creation of hundreds of optical systems that supported astronomy, aerial reconnaissance, instant photography (Polaroid SX70 camera), and the US space programs. He was the recipient of numerous awards for his creative work. He was born in Louisville, Kentucky, on 11 November 1914, the fourth child of Jesse B. Baker and Hattie M. Stallard. After graduating from Louisville DuPont Manual High, he went on to attend the University of Louisville majoring in Mathematics. He became very close to an Astronomy Professor, Dr. Moore, and many times used his telescopes to do nightly observations. While at the university, he built mirrors for his own telescopes and helped form the Louisville Astronomical Society in 1933. At the University of Louisville, he also met his future wife, Elizabeth Katherine Breitenstein of Jefferson County, Kentucky. He received his BA in 1935 at the height of the Depression. He began his graduate work in astronomy at the Harvard College Observatory. After his MA (1936), he was appointed a Junior Fellow (1937-1943) in the Prestigious Harvard Society of Fellows. He received his PhD in 1942 from Harvard in rather an unusual fashion, which is worth retelling. During an Astronomy Department dinner, Dr. Harlow Shapley (the director) asked him to give a talk. According to the "Courier-Journal Magazine", "Dr. Shapley stood up and proclaimed an on-the-spot departmental meeting and asked for a vote on recommending Baker for a Ph.D. on the basis of the 'oral exam' he had just finished. The vote was unanimous." It was at Harvard College Observatory during this first stage of his career that he collaborated with Donald H. Menzel, Lawrence H. Aller, and George H. Shortley on a landmark set of papers on the physical processes

La rue et ses légendes

DEFF Research Database (Denmark)

Reeh, Henrik

1997-01-01

Bykultur, kartografi, kunst, semiotik, Paris, Pierre Alechinsky, Gilbert Lascault, Walter Benjamin, Michel de Certeau......Bykultur, kartografi, kunst, semiotik, Paris, Pierre Alechinsky, Gilbert Lascault, Walter Benjamin, Michel de Certeau...

Computers and geophysics: Requirements outlined

Science.gov (United States)

The use of computers to process enormous volumes of data is likely to improve our abilities to predict earthquakes and issue tsunami warnings, geophysicist J. Freeman Gilbert recently told a House of Representatives task force on science policy. Gilbert, of the Scripps Institution of Oceanography at the University of California, San Diego, testified before the task force on September 11, in one of a series of hearings intended to explore the “impact of the information age on science.” Scientists and administrators from universities and private industry served as witnesses during the 3 days of hearings.Rep. George E. Brown, J r . , (D-Calif.) asked Gilbert to compare the amount of damage done by tsunamis in the United States to the cost of improved detection and warning systems. “I think it's worth the effort,” Gilbert responded, adding that as in the case of hurricane warnings, tsunami warnings would affect only a small proportion of the nation's population but could be crucial to protect their lives and property. Such a system, Gilbert said, “represents technology that is easy to implement.”

Liz’s Bali Journey Ends In Love In Elizabeth Gilbert’s Novel “Eat Pray Love”

OpenAIRE

Simanjuntak, Lenni

2011-01-01

This paper entitled "Liz's Bali Love Ends with Love in Elizabeth Gilbert's Eat Pray Love". There are three main characters in the novel, namely: Elizabeth Gilbert, Felipe and Ketut Liyer. Elizabeth Gilbert is 31-year-old who is a widow and worked as a writer in New York. Liz experienced hard times after having broken up several times and felt could never find a man who is match for her. All this makes her to search her true identity. Liz traveled alone across in the three countries. Although ...

Bay-scale population structure in coastal Atlantic cod in Labrador and Newfoundland, Canada

DEFF Research Database (Denmark)

Ruzzante, D.E.; Wroblewski, J.S.; Taggart, C.T.

2000-01-01

Polymorphisms at five microsatellite DNA loci provide evidence that Atlantic cod Gadus morhua inhabiting Gilbert Bay, Labrador are genetically distinguishable from offshore cod on the north- east Newfoundland shelf and from inshore cod in Trinity Bay, Newfoundland. Antifreeze activity in the blood...... of population structure suggest that important barriers to gene flow exist among five components that include two inshore (Gilbert and Trinity Bay) and three offshore cod aggregations on the north-east Newfoundland Shelf and the Grand Bank. D-A and D-SW estimates of genetic distance that involve Gilbert Bay cod...

Sir Gilbert Thomas Walker

Indian Academy of Sciences (India)

playa fundamental role in the variability of the earth's climate. Walker noted a tendency of ... Walker was however not able to ascertain the physical mechanism governing these oscillations. In the first two ... In 1927, he made the follow- ing prophetic statement: "There is, to-day, always a risk that specialists in two subjects,.

Sir Gilbert Thomas Walker

Indian Academy of Sciences (India)

He was educated at St Paul's School and later at the. Trinity College ... Walker spent the next 21 years doing research on monsoon ... J Bjerknes in 1969, 11 years after Walker's death. ... water-colours of landscapes at the Shimla Art Exhibition.

Magnetization dissipation in ferromagnets from scattering theory

NARCIS (Netherlands)

Brataas, A.; Tserkovnyak, Y.; Bauer, G.E.W.

2011-01-01

The magnetization dynamics of ferromagnets is often formulated in terms of the Landau-Lifshitz-Gilbert (LLG) equation. The reactive part of this equation describes the response of the magnetization in terms of effective fields, whereas the dissipative part is parametrized by the Gilbert damping

Semi-inner-products in Banach Spaces with Applications to Regularized Learning, Sampling, and Sparse Approximation

Science.gov (United States)

2016-03-13

7.00 8.00 Praveen K. Yenduri, Anna C. Gilbert, Jun Zhang. Integrate-and-fire neuron modeled as a low-rate sparse time-encoding device, 2012 Third...International Conference on Intelligent Control and Information Processing (ICICIP). 15-JUL- 12, Dalian, China. : , Praveen K. Yenduri, Anna C. Gilbert

Four new species of Aloe (Aloaceae) from Ethiopia, with notes on the ethics of describing new taxa from foreign countries

DEFF Research Database (Denmark)

Demissw, Sebsebe; Friis, Ib; Awas, Tesfaye

2011-01-01

Subsequent to the treatment of the Aloaceae, with 38 species of Aloe, in the Flora of Ethiopia (Sebsebe Demissew & Gilbert 1997), four more species, Aloe bertemariae Sebsebe & Dioli (2000), A. friisii Sebsebe & M. G. Gilbert (2000), A. clarkei L. E. Newton (2002) and A. elkerriana Dioli & T. A. M...

Fulltext PDF

Indian Academy of Sciences (India)

Gilbert S. F. 2000 Diachronic biology meets evo-devo: C.H.. Waddington's approach to evolutionary developmental biology. Am. Zool. 40, 729–737. Gilbert S. F. 2006 Developmental biology, 8th edition. Sinauer, Sun- derland. Robert J. S., Hall B. K. and Olson W. M. 2001 Bridging the gap between developmental systems ...

Journal of Biosciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

Home; Journals; Journal of Biosciences. Scott F Gilbert. Articles written in Journal of Biosciences. Volume 26 Issue 3 September 2001 pp 293-298. Commentary: New vistas for developmental biology · Scott F Gilbert Rocky S Tuan · More Details Fulltext PDF. Volume 27 Issue 5 September 2002 pp 445-446. Commentary: ...

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Directory of Open Access Journals (Sweden)

Fernanda Blauth de Lima

2009-08-01

Full Text Available Morphology of the gills of Steindachnerina brevipinna (Eigenmann & Eigenmann, 1889 (Characiformes, Curimatidae. The Birú, Steindachnerina brevipinna, is a fish of detritivorous habit. This study describes the respiratory morphology, which contributes to the determination of the species’ feeding habits. The material was processed according to the methodology of paraffin inclusion, pigmented with Hematoxylin & Eosin, Tricomic of Goldner, and P.A.S. The gills have arches with small and numerous filaments, which are short and close to one other, when compared to other species. Gustative corpuscles, mucous cells, pavement, cells and chloride cells were in evidence, among others. In the lamellae, the epithelium is stratified, with pillars and mucous cells. The structural characteristics observed in the gills of S. brevipinna reflect the narrow commitment with the feeding habit in addition to the intense agility of this species.

Accommodation Paralysis after Pheniramine Maleate Injection: A Case Report.

Science.gov (United States)

Bingol Kiziltunc, Pinar; Atilla, Huban; Yalcindag, F Nilufer

2013-01-01

We present a case in which Gilbert syndrome was diagnosed following a neuro-ophthalmic complaint. Adverse effects of drugs as well as various systemic, neurological, and local ocular pathologies can cause accommodative insufficiency and loss of accommodation. A 29-year-old man was admitted to an ophthalmology department with blurred vision and diagnosed as suffering from acute accommodation paralysis. He had a history of being given a pheniramine maleate injection for pruritus 20 days previously. Symptoms began immediately following the injection. After systemic evaluation and laboratory tests, he was diagnosed as having Gilbert syndrome. His complaints and symptoms recovered in approximately a further 10 days. Metabolism of pheniramine maleate can be impaired in Gilbert syndrome and anticholinergic effects can cause accommodation paralysis.

A Biography of Distinguished Scientist Gilbert Newton Lewis (by Edward S. Lewis)

Science.gov (United States)

Harris, Reviewed By Harold H.

1999-11-01

The Edward Mellen Press: Lewiston, NY, 1998. 114 pp + index. ISBN 0-7734-8284-9. $69.95. There may not be a surname better known to students of chemistry than Lewis, from the Lewis electron-dot diagrams and the Lewis theory of acids and bases. More advanced students may know of the groundbreaking textbook Thermodynamics, by Lewis and Randall. Yet few Americans know much about this remarkable U.S.-born scholar, whose contributions equal those of the greatest scientists. He is a chemist-educator of whom we should be as proud and as well informed as we are of Linus Pauling, who was part of the westward movement of science in this country that G. N. Lewis began, or of the recently deceased Glenn Seaborg, who was one of the many students of Lewis who achieved renown. Gilbert N. Lewis was born in Weymouth, Massachusetts, in 1875, but his family moved to near Lincoln, Nebraska, in 1884. He spent two years at the University of Nebraska, but then moved to Harvard when his father became an executive at Merchants Trust Company in Boston. Young Lewis (then only 17) was also said to have been disappointed with the quality of education in Nebraska, and this may have been part of the impetus for the family's move east. After earning his baccalaureate at Harvard, he taught for a year at Phillips Andover Academy before returning to Harvard to study for his doctorate, which he completed 100 years ago, in 1899, under T. W. Richards. Lewis's doctoral work was on the thermodynamics of zinc and cadmium amalgams. At that time, physical chemistry was only beginning to achieve recognition as a branch of science, and its boundaries were ill defined. Edward Lewis quotes his father as often saying, "Physical chemistry is anything interesting." Like many chemists of his time, Lewis went to Europe to complete his preparation for a career; he was in the laboratories of Ostwald in Leipzig and Nernst in Göttingen in 1900-1901. On his return to the United States, he was an instructor at Harvard

Study of spin dynamics and damping on the magnetic nanowire arrays with various nanowire widths

Energy Technology Data Exchange (ETDEWEB)

Cho, Jaehun [Department of Physics, Inha University, Incheon, 402-751 (Korea, Republic of); Fujii, Yuya; Konioshi, Katsunori [Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan); Yoon, Jungbum [Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore); Kim, Nam-Hui; Jung, Jinyong [Department of Physics, Inha University, Incheon, 402-751 (Korea, Republic of); Miwa, Shinji [Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan); Jung, Myung-Hwa [Department of Physics, Sogang University, Seoul, 121-742 (Korea, Republic of); Suzuki, Yoshishige [Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan); You, Chun-Yeol, E-mail: cyyou@inha.ac.kr [Department of Physics, Inha University, Incheon, 402-751 (Korea, Republic of)

2016-07-01

We investigate the spin dynamics including Gilbert damping in the ferromagnetic nanowire arrays. We have measured the ferromagnetic resonance of ferromagnetic nanowire arrays using vector-network analyzer ferromagnetic resonance (VNA-FMR) and analyzed the results with the micromagnetic simulations. We find excellent agreement between the experimental VNA-FMR spectra and micromagnetic simulations result for various applied magnetic fields. We find that the same tendency of the demagnetization factor for longitudinal and transverse conditions, N{sub z} (N{sub y}) increases (decreases) as increasing the nanowire width in the micromagnetic simulations while N{sub x} is almost zero value in transverse case. We also find that the Gilbert damping constant increases from 0.018 to 0.051 as the increasing nanowire width for the transverse case, while it is almost constant as 0.021 for the longitudinal case. - Highlights: • We investigate the spin dynamic properties in the ferromagnetic nanowire arrays. • The demagnetization factors have similar tendency with the prism geometry results. • The Gilbert damping constant is increased from 0.018 to 0.051 as the increasing nanowire width for the transverse. • The Gilbert damping constant is almost constant as 0.021 for the longitudinal case.

Genetics Home Reference: Gilbert syndrome

Science.gov (United States)

... instance because of dehydration, prolonged periods without food (fasting), illness, vigorous exercise, or menstruation. Some people with ... to conjugated bilirubin. Glucuronidation makes bilirubin dissolvable in water so that it can be removed from the ...

RSM Outlook Winter 2013: Growing Tomorrow's Entrepreneurs

OpenAIRE

Whittern, Justine; Schreiner, Dorine

2013-01-01

markdownabstract#### Innovation and the path to value (Russell Gilbert) At the RSM Leadership Summit in October, Frans van Houten, CEO of Royal Philips (pictured), gave a uniquely insightful presentation about the benefits of organisational transformation, innovation, and the importance of keeping abreast of technological and societal changes. In an exclusive interview, Mr Van Houten discusses these issues with Russell Gilbert, Managing Editor of RSM Outlook. #### Ready for lift off!! (Bennet...

Fish community composition, seasonality and abundance in Fortaleza Lagoon, cidreira

Directory of Open Access Journals (Sweden)

Lúcia Cabral Schifino

2004-09-01

Full Text Available The Fortaleza Lagoon belongs to the Southern Tramandaí subsystem, formed by lagoons disposed linearly on the north-south direction (30º 08’S, 50º 13’W. The objective of this study was to describe some aspects related to the composition of the fish community of Fortaleza Lagoon. Samples were collected monthly from November 1998 to October 1999. The specimens were captured at four previously determined points in the lagoon, and classified in five orders, 12 families and 22 species. Cyphocharax voga, Hyphessobrycon luetkenii, Oligosarcus jenynsii, Oligosarcus robustus and Loricariichthys anus were more abundant species. Amongst the sampled species only two could not be characterised as freshwater species: Centropomus sp (marine and Lycengraulius grossidens (estuarine. The ichthyofauna of the lagoon was predominantly composed by constant species.A Planície Costeira do Rio Grande do Sul é formada por uma série de corpos d’água, dispostos em seqüência ao longo da costa. A lagoa da Fortaleza pertence ao subsistema lagunar Tramandaí-Sul que é composto por lagoas, dispostas linearmente no sentido norte-sul. O do presente estudo teve como objetivo descrever alguns aspectos relacionados à composição da comunidade de peixes da Lagoa da Fortaleza. As amostragens foram realizadas, mensalmente, no período de novembro de 1998 a outubro de 1999. Os exemplares foram capturados em 4 pontos da lagoa previamente determinados e classificados em 5 ordens, 11 famílias e 22 espécies. As espécies Cyphocharax voga, Hyphessobrycon luetkenii, Oligosarcus jenynsii, Oligosarcus robustus e Loricariichthys anus mostraram-se as mais abundantes. Entre as espécies coletadas apenas duas não caracterizam espécies de água doce: Centropomus sp (marinha and Lycengraulius grossidens (estuarina. A ictiofauna da lagoa caracterizou-se por uma predominância de espécies constantes.

Inputs and internal cycling of nitrogen to a causeway influenced, hypersaline lake, Great Salt Lake, Utah, USA

Science.gov (United States)

Naftz, David L.

2017-01-01

Nitrogen inputs to Great Salt Lake (GSL), located in the western USA, were quantified relative to the resident nitrogen mass in order to better determine numeric nutrient criteria that may be considered at some point in the future. Total dissolved nitrogen inputs from four surface-water sources entering GSL were modeled during the 5-year study period (2010–2014) and ranged from 1.90 × 106 to 5.56 × 106 kg/year. The railroad causeway breach was a significant conduit for the export of dissolved nitrogen from Gilbert to Gunnison Bay, and in 2011 and 2012, net losses of total nitrogen mass from Gilbert Bay via the Causeway breach were 9.59 × 105 and 1.51 × 106 kg. Atmospheric deposition (wet + dry) was a significant source of nitrogen to Gilbert Bay, exceeding the dissolved nitrogen load contributed via the Farmington Bay causeway surface-water input by >100,000 kg during 2 years of the study. Closure of two railroad causeway culverts in 2012 and 2013 likely initiated a decreasing trend in the volume of the higher density Deep Brine Layer and associated declines in total dissolved nitrogen mass contained in this layer. The large dissolved nitrogen pool in Gilbert Bay relative to the amount of nitrogen contributed by surface-water inflow sources is consistent with the terminal nature of GSL and the predominance of internal nutrient cycling. The opening of the new railroad causeway breach in 2016 will likely facilitate more efficient bidirectional flow between Gilbert and Gunnison Bays, resulting in potentially substantial changes in nutrient pools within GSL.

Guide Manual for Preparation of Water Balances

Science.gov (United States)

1980-11-01

boundaries for the AGUA study (39). This figure was developed from a LANDSAT photograph of the Albuquerque, New Mexico area. It clearly shows the boundaries of...Guide to Water-Management Alternatives. USGS Professional Paper 627-F. 12. Gilbert, J. B. and Associates, 1977. Report on Water Conservation Reuse and...Report on Water Conservation Reuse and Supply, San Francisco Bay Region, prepared by J. B. Gilbert and Associates, 1978. (12) Purposes of this study

Features of an altered AMPK metabolic pathway in Gilbert’s Syndrome, and its role in metabolic health

OpenAIRE

Christine Mölzer; Marlies Wallner; Carina Kern; Anela Tosevska; Ursula Schwarz; Rene Zadnikar; Daniel Doberer; Rodrig Marculescu; Karl-Heinz Wagner

2016-01-01

Energy metabolism, involving the ATP-dependent AMPK-PgC-Ppar pathway impacts metabolic health immensely, in that its impairment can lead to obesity, giving rise to disease. Based on observations that individuals with Gilbert?s syndrome (GS; UGT1A1 *28 promoter mutation) are generally lighter, leaner and healthier than controls, specific inter-group differences in the AMPK pathway regulation were explored. Therefore, a case-control study involving 120 fasted, healthy, age- and gender matched s...

Disease: H00208 [KEGG MEDICUS

Lifescience Database Archive (English)

Full Text Available er-Najjar syndrome, type II (CN2); Familial neonatal hyperbilirubinemia; Gilbert Syndrome; Dubin-Johnson syn...drome (DJS); Roter syndrome (RS) Gilbert disease and Crigler-Najjar syndromes result in unconjugated hyperbilirubin...gn familial disorder characterized by low-grade chronic hyperbilirubinemia, while Crigler-Najjar syndromes a...erbilirubinemia. The hepatocyte pigment deposits is typical of DJS. Total urinary e...igns of hemolysis, and routine hematologic and clinical-biochemistry test results are normal, aside from the primarily conjugated hyp

Diferencias en la predicción afectiva entre población general y clínica : un estudio prelimina

OpenAIRE

Nebot Garcia, Juan Enrique

2015-01-01

Treball Final de Màster Universitari en Psicopatologia, Salut i Neuropsicologia. Codi: SAL132. Curs: 2014/2015 Introducción: Los pronósticos que hacemos sobre cómo nos sentiremos ante eventos futuros son conocidos como "predicciones afectivas" (Wilson y Gilbert, 2003). Diversos estudios han identificado que tendemos a sobreestimar la intensidad de nuestras emociones (p. ej., Loewenstein, 2011; Wilson y Gilbert, 2003); esto es definido como "sesgo de intensidad" (Buehler y McFar...

Violence, Colonization and Henry VIII’s Conquest of France, 1544–1546

OpenAIRE

Murphy, Neil

2016-01-01

In 1579 the English writer Thomas Churchyard explained to his readers the military strategy that Sir Humphrey Gilbert had used in Ireland during the suppression of the First Desmond Rebellion ten years earlier. He wrote that ‘when soeuer he [Gilbert] made any ostyng, or inrode, into the enemies Countrey, he killed manne, woman, and child, and spoiled, wasted, and burned, by the grounde all that he might: leauyng nothyng of the enemies in saffetie, whiche he could possiblie waste, or consume’....

ESH&Q Joule: Greg Gilbert | News

Science.gov (United States)

Financial Officer Finance Section Office of the Chief Operating Officer Facilities Engineering Services Accelerator Division Accelerator Physics Center Office of the Chief Safety Officer Environment, Safety, Health and Quality Section Office of the Chief Project Officer Office of Project Support Services Office of

2154-IJBCS-Article-Gilbert Tite Layeye

African Journals Online (AJOL)

hp

fécaux dans l'eau des échantillons révèle que la contamination provient de la surface. Pour caractériser le seuil ... durée de vie de E. Coli dans divers types de sols, les résultats .... de Contrôle Qualité des Eaux et Aliments. (LCQEA) de la ...

Gilbert Arenas ekstravertne introvert / Tanel Kapp

Index Scriptorium Estoniae

Kapp, Tanel

2006-01-01

NBA ühest ekstsentrilisemast mängijast, kes on meedia tähelepanu keskmes olnud juba esimesest hooajast peale, ent seda eelkõige oma pöörase käitumise ja koomiliste kommentaaride tõttu. Lisa: Statistika

Evaluation of the nucledyne passive containment system

International Nuclear Information System (INIS)

1981-04-01

This reports contains: (1) an evaluation by Gilbert/Commonwealth (G/C) of the NucleDyne passive Containment System (PCS) as that conceptual design is applied to a Westinghouse, two loop, Pressurized Water Reactor; (2) an evaluation by Westinghouse of two questions about the impact of the PCS on the Nuclear Steam Supply System (NSSS), which were posed by G/C and best answered by an NSSS vendor; and (3) replies to both the Gilbert/Commonwealth report and the Westinghoue report by NucleDyne Engineering Corporation

Anti-Genotoxic Potential of Bilirubin In Vivo

DEFF Research Database (Denmark)

Wallner, Marlies; Antl, Nadja; Rittmannsberger, Barbara

2013-01-01

The bile pigment bilirubin is a known antioxidant and is associated with protection from cancer and cardiovascular disease (CVD) when present in too strong concentrations. Unconjugated bilirubin (UCB) might also possess anti-genotoxic potential by preventing oxidative damage to DNA. Moderately...... elevated bilirubin levels are found in individuals with Gilbert syndrome and more severe in the hyperbilirubinemic Gunn rat model. This study was therefore aimed to assess the levels of oxidative damage to DNA in Gilbert syndrome subjects and Gunn rats compared to matched controls. Seventy-six individuals...

Cono extendido, nueva variante técnica en la cirugía de la hernia inguinal Extended cone a new technical variant in the inguinal hernia surgery

Directory of Open Access Journals (Sweden)

Hiram Rodríguez Blanco

2011-06-01

Full Text Available INTRODUCCIÓN. El tratamiento de la hernia inguinal continúa siendo un tema controvertido y no existe un punto común de acción en cuanto a la modalidad terapéutica que se emplea. Con el desarrollo de las técnicas protésicas la controversia continúa a pesar de las demostradas ventajas de estas. El objetivo de este estudio fue evaluar los primeros casos intervenidos quirúrgicamente mediante la técnica del cono extendido, una modificación de las técnicas clásicas de Liechtenstein y Rutkow. MÉTODOS. Se realizó un estudio prospectivo lineal en 45 pacientes operados mediante una técnica protésica denominada cono extendido. Los pacientes fueron operados en un período de 2 años en la Clínica Multiperfil de Luanda (Angola y para clasificarlos se utilizó la clasificación de Gilbert modificada. RESULTADOS. Hubo un predominio del sexo masculino. La localización más frecuente fue la región inguinal derecha. Predominaron los pacientes clasificados de grado III según la clasificación de Gilbert. Hubo 6 complicaciones menores y hasta el momento no han ocurrido recidivas. CONCLUSIONES. La técnica del cono extendido es una opción más para el tratamiento de los pacientes que presenten hernias inguinales de grado III y VI de la clasificación de Gilbert.INTRODUCTION. The treatment of the inguinal hernia remains being a controversial subject and there is not a common point of action as regards the therapeutic modality used. With the development of the prosthetic techniques the controversy remains despite their demonstrated advantages. The objective of present study was to assess the first cases operated on with the extended cone technique a modification of the classic Liechtenstein's and Rutkow's techniques. METHODS. A linear and prospective study was conducted in 45 patients operated on by a prosthetic technique called extended cone. The patients were operated on in a period of two years in the Multiprofile Clinic of Luanda (Angola and

Damping Dependence of Reversal Magnetic Field on Co-based Nano-Ferromagnetic with Thermal Activation

Directory of Open Access Journals (Sweden)

Nadia Ananda Herianto

2015-02-01

Full Text Available Currently, hard disk development has used HAMR technology that applies heat to perpendicular media until near Curie temperature, then cools it down to room temperature. The use of HAMR technology is significantly influence by Gilbert damping constants. Damping affects the magnetization reversal and coercivity field. Simulation is used to evaluate magnetization reversal by completing Landau-Lifshitz-Gilbert explicit equation. A strong ferromagnetic cobalt based material with size 50×50×20 nm3 is used which parameters are anisotropy materials 3.51×106 erg/cm3, magnetic saturation 5697.5 G, exchange constant 1×10-7 erg/cm, and various Gilbert damping from 0.09 to 0.5. To observe the thermal effect, two schemes are used which are Reduced Barrier Writing and Curie Point Writing. As a result, materials with high damping is able to reverse the magnetizations faster and reduce the energy barrier. Moreover, it can lower the minimum field to start the magnetizations reversal, threshold field, and probability rate. The heating near Curie temperature has succeeded in reducing the reversal field to 1/10 compared to writing process in absence of thermal field.

Shared Agency on Gilbert and deep continuity

Directory of Open Access Journals (Sweden)

Smith Thomas H.

2015-01-01

Full Text Available I compare Bratman’s theory with Gilbert’s. I draw attention to their ­similarities, query Bratman’s claim that his theory is the more parsimonious, and point to one theoretical advantage of Gilbert’s theory.

Ultra-low damping in lift-off structured yttrium iron garnet thin films

Science.gov (United States)

Krysztofik, A.; Coy, L. E.; Kuświk, P.; Załeski, K.; Głowiński, H.; Dubowik, J.

2017-11-01

We show that using maskless photolithography and the lift-off technique, patterned yttrium iron garnet thin films possessing ultra-low Gilbert damping can be accomplished. The films of 70 nm thickness were grown on (001)-oriented gadolinium gallium garnet by means of pulsed laser deposition, and they exhibit high crystalline quality, low surface roughness, and the effective magnetization of 127 emu/cm3. The Gilbert damping parameter is as low as 5 ×10-4. The obtained structures have well-defined sharp edges which along with good structural and magnetic film properties pave a path in the fabrication of high-quality magnonic circuits and oxide-based spintronic devices.

Perchlorate: environmental occurrence, interactions and treatment

National Research Council Canada - National Science Library

Gu, Baohua, Ph. D; Coates, John D

2006-01-01

..... ... . ... .. ... .. ... . ... ... .. . . . . , . , . , .. ... ... .. 14 Chapter 2. The Chemistry of Perchlorate in the Environment Gilbert M Brown and Baohua Gu Introduction ... 17 Redox Properties of Chlorine Compounds ... 18...

Effect of different level density prescriptions on the calculated neutron nuclear reaction cross sections

International Nuclear Information System (INIS)

Garg, S.B.

1991-01-01

A detailed investigation is carried out to determine the effect of different level density prescriptions on the computed neutron nuclear data of Ni-58 in the energy range 5-25 MeV. Calculations are performed in the framework of the multistep Hauser-Feshbach statistical theory including the Kalbach exciton model and Brink-Axel giant dipole resonance model for radiative capture. Level density prescriptions considered in this investigation are based on the original Gilbert-Cameron, improved Gilbert-Cameron, backshifted Fermi-gas and the Ignatyuk, et al. approaches. The effect of these prescriptions is discussed, with special reference to (n,p), (n,2n), (n,alpha) and total particle-production cross sections. (author). 17 refs, 8 figs

jfewr ©2017 - jfewr Publications

African Journals Online (AJOL)

AWE FEMI

2017-12-04

Dec 4, 2017 ... JOURNAL OF RESEARCH IN FORESTRY, WILDLIFE AND ENVIRONMENT VOLUME 9, No. .... agricultural share of international economics which contributes to ..... deforestation, Bioscience, 52: 143 150. Gilbert, N., S.

Copepod parasites of Curimatella lepidura (Characiformes, Curimatidae from the Três Marias Reservoir, Brazil Copépodes parasitos de Curimatella lepidura (Characiformes, Curimatidae do reservatório de Três Marias, Brasil

Directory of Open Access Journals (Sweden)

M.C. Albuquerque

2008-10-01

Full Text Available Copépodes ergasilídeos coletados nas brânquias de Curimatella lepidura do reservatório de Três Marias, alto rio São Francisco, Minas Gerais, Brasil e identificados como Miracetyma etimaruya e Ergasilus sp., constituem o primeiro registro de parasitos nesse peixe forrageiro e endêmico. A ocorrência foi independente do sexo e do tamanho dos peixes. A distribuição geográfica conhecida das espécies de Miracetyma Malta, 1993, restrita à bacia do rio Amazonas, é ampliada neste estudo para a bacia do rio São Francisco.

Biodiversity Monitoring Using NGS Approaches on Unusual Substrates (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

Energy Technology Data Exchange (ETDEWEB)

Gilbert, Tom

2013-03-01

Tom Gilbert of the Natural History Museum of Denmark on "Biodiversity monitoring using NGS approaches on unusual substrates" at the 8th Annual Genomics of Energy & Environment Meeting in Walnut Creek, Calif.

78 FR 42890 - Fisheries of the Northeastern United States; Atlantic Sea Scallop Fishery and Northeast...

Science.gov (United States)

2013-07-18

...: Emily Gilbert, Fishery Policy Analyst, 978-281-9244; fax 978-281-9135. SUPPLEMENTARY INFORMATION... paragraph (b)(4) is revised to read as follows: Sec. 648.53 Acceptable biological catch (ABC), annual catch...

PERFORMANCE IN ART NATURE AND MEANING

African Journals Online (AJOL)

USER

2012-04-25

Apr 25, 2012 ... Graduate Employees for Effective Job Performance in. Organizations ... increase employee motivation and satisfaction (Stonner, Gilbert and. Freeman, 2000). .... The ability to cooperate with others, work under stress and to.

75 FR 4622 - Qualification of Drivers; Exemption Applications; Diabetes

Science.gov (United States)

2010-01-28

.... Bauer, Michael P. Berger, William D. Blosch, Michael Bohlen, Bradley N. Brown, Victor M. Brunner, Tom L..., Eugene G. Friedman, Edward L. Gilbert, Donald W. Hansen, Joseph S. Hernandez, Corrine J. Hoffman, Robert...

77 FR 26316 - Progress Energy Florida; Final Environmental Impact Statement for Combined Licenses for Levy...

Science.gov (United States)

2012-05-03

... at 600 Gilbert Street, Bronson. FOR FURTHER INFORMATION CONTACT: Mr. Douglas Bruner, Environmental.... Bruner may be contacted by telephone at 301-415-2730 or via email at Douglas.Bruner@nrc.gov . Dated at...

Uma ilha de competência: a história do Instituto de Química Agrícola na memória de seus cientistas An island of scientific competence: a history of Brazil's Institute of Agricultural Chemistry in the memory of its scientists

Directory of Open Access Journals (Sweden)

Line Rodrigues de Faria

1997-06-01

Full Text Available Este artigo apresenta a história do IQA, mostrando sua importância para o desenvolvimento da ciência brasileira, bem como os motivos e circunstâncias históricas que provocaram sua desestruturação. A evolução desse instituto está associada às trajetórias de Walter Mors, Otto Gottlieb e Benjamin Gilbert, cujas pesquisas contribuíram para a formação de cientistas na área de química do produtos naturais. Na década de 1950, o instituto se projetou como "ilha de competência", mas foi afetado pelas mudanças ocorridas no Ministério da Agricultura e no setor agrícola nacional. A extinção desse centro de excelência não significou o fim das importantes tradições científicas que brotaram. Em grupos e instituições que surgiram em vários estados brasileiros, Mors, Gottheb a Gilbert deram continuidade às pesquisas que vinham implementando no instituto de origem.This history of Brazil's IQA, underscores the role the institution played in the development of Brazilian science as well as the historical motives and circumstances that led to its demise. The IQA's history is linked to the stories of Walter Mors, Otto Gottlieb, and Benjamin Gilbert whose research contributed to the training of scientists in the field of natural product chemistry. Although the institute earned a reputation as an "island of competence" during the 195Os, it was affected by changes within the Ministry of Agriculture and Brazil's farm sector. The closing of this center of excellence did not mean the end of important scientific traditions that blossomed there. As part of groups and institutions that emerged in different states around Brazil, Mors, Gottlieb, and Gilbert ensured the continuity of the research steadies they had been conducting within the IQA.

Assessment of soil-pollution by slag from an automobile battery ...

African Journals Online (AJOL)

Administrator

automobile battery manufacturing plant in Nigeria. Gilbert U. Adie1* and .... Contamination of the environment with heavy metals .... assessment of heavy metal contamination using ..... contact with the soil or through food chain with water,.

Implementation of a high performance parallel finite element micromagnetics package

International Nuclear Information System (INIS)

Scholz, W.; Suess, D.; Dittrich, R.; Schrefl, T.; Tsiantos, V.; Forster, H.; Fidler, J.

2004-01-01

A new high performance scalable parallel finite element micromagnetics package has been implemented. It includes solvers for static energy minimization, time integration of the Landau-Lifshitz-Gilbert equation, and the nudged elastic band method

Neuro-Oncology Branch

Science.gov (United States)

... BTTC are experts in their respective fields. Neuro-Oncology Clinical Fellowship This is a joint program with ... can increase survival rates. Learn more... The Neuro-Oncology Branch welcomes Dr. Mark Gilbert as new Branch ...

Sphincterodiplostomum musculosum (Digenea, Diplostomidae infecting Steindachnerina insculpta (Characiformes, Curimatidae in the Chavantes Reservoir, Southeastern Brazil Sphincterodiplostomum musculosum (Digenea, Diplostomidae infectando Steindachnerina insculpta (Characiformes, Curimatidae no reservatório de Chavantes, Sudeste do Brasil

Directory of Open Access Journals (Sweden)

Aline Cristina Zago

2013-03-01

Full Text Available This study aimed to report the infection by Sphincterodiplostomum musculosum metacercariae in Steindachnerina insculpta from the Chavantes Reservoir, medium Paranapanema River, municipality of Ipaussu, State of São Paulo, Brazil. Thirty specimens of S. insculpta were collected and 29 were infected with S. musculosum metacercariae (prevalence = 96.67% in the eyes and visceral cavity. The mean intensity of infection and abundance were 96.6 ± 29.41 (7-846 and 93.3 ± 28.6 (0-846, respectively. Positive correlation was observed between parasite abundance in the eyes and standard length (rs = 0.5, p = 0.005, total weight (rs = 0.649, p = 0.0001, and condition factor (rs = 0.439, p = 0.0154. The high parasitism rates by S. musculosum metacercariae in S. insculpta can be an indicative that this fish species is highly susceptible to infection by this diplostomid, and even reflect the presence of a large abundance of the intermediate host. Moreover, S. musculosum metacercariae are reported for the first time in S. insculpta.O presente estudo tem como objetivo relatar a infecção por metacercárias de Sphincterodiplostomum musculosum em Steindachnerina insculpta provenientes do Reservatório de Chavantes, médio Paranapanema, município de Ipaussu, Estado de São Paulo, Brasil. Foram coletados 30 espécimes de S. insculpta, sendo que 29 estavam infectados por metacercárias de S. musculosum (prevalência = 96,67% nos olhos e na cavidade visceral. A intensidade média de infecção e abundância apresentaram valores de 96,6 ± 29,41 (7-846 e 93,3 ± 28,6 (0-846, respectivamente. Foi observada correlação positiva entre a abundância dos parasitas presentes nos olhos com relação ao comprimento padrão (rs = 0.5, p = 0.005, peso (rs = 0.649, p = 0.0001 e fator de condição (rs = 0.439, p = 0.0154. As altas taxas de parasitismo de metacercárias de S. musculosum em S. insculpta podem ser um indicativo de que esta espécie de peixe é altamente susceptível à infecção por este diplostomídeo, e até mesmo refletir a presença de grande oferta do hospedeiro intermediário. Além disso, este é o primeiro relato de parasitismo por metacercárias de S. musculosum em S. insculpta.

Impact of current on static and kinetic depinning fields of domain ...

Indian Academy of Sciences (India)

Landau–Lifshitz–Gilbert equation with adiabatic and non-adiabatic ... Domain wall; pinning; depinning; spin-transfer torque; spin-polarized current; Landau– ..... The displacement (X) of the domain wall vs.time plotted for the field-driven and.

New vistas for developmental biology

Indian Academy of Sciences (India)

Author Affiliations. Scott F Gilbert1 Rocky S Tuan2. Department of Biology, Swarthmore College, 500 College Avenue, Swarthmore, PA 19081, USA; Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street, Philadelphia, PA 19107, USA ...

6 Common Cancers - Skin Cancer

Science.gov (United States)

... Bar Home Current Issue Past Issues 6 Common Cancers - Skin Cancer Past Issues / Spring 2007 Table of Contents ... AP Photo/Herald-Mail, Kevin G. Gilbert Skin Cancer Skin cancer is the most common form of cancer ...

Valga teatrikuukolmik on poole peal / Helju Keskpalu

Index Scriptorium Estoniae

Keskpalu, Helju

1999-01-01

Marc-Gilbert Sauvagoni "Ciao!", Ugala külalislavastus, Nukuteatri "Luikede järv", Ivan Menchelli "Armastan sind igavesti ehk Kalmistuklubi", Vene Draamateatri külalisetendus, Charles Laurence'i "Minu armas paksuke", Rakvere Teatri külalisetendus

American Liver Foundation

Science.gov (United States)

... Cirrhosis Clinical Trials Galactosemia Gilbert Syndrome Hemochromatosis Hepatic Encephalopathy Hepatitis A Hepatitis B Hepatitis C Hepatocellular Carcinoma Lysosomal Acid Lipase Deficiency(LALD) Intrahepatic Cholestasis of Pregnancy (ICP) Liver Biopsy Liver Cancer Liver Cysts Liver Function Tests ...

La “caja negra” de la política exterior estadounidense en Oriente Medio

Directory of Open Access Journals (Sweden)

Marcela Ulloa

2013-07-01

Full Text Available Reseña del siguiente libro:CHOMSKY, Noam y Gilbert Achar (2007. Estados peligrosos: oriente medio y la política exterior estadounidense. Barcelona: Ediciones Paidós Ibérica, 349 pp.

When proteome meets genome: the alpha helix and the beta strand ...

Indian Academy of Sciences (India)

Unknown

mics, designing of cloning strategies, and in the mutual verification of genome sequences with protein structures. ...... Gilbert W 1987 The exon theory of genes; Cold Spring Harb. ... bination between self-splicing introns of bacteriophage T4;.

Causes of blindness and career choice among pupils in a blind ...

African Journals Online (AJOL)

available eye care services Furthermore there is need for career talk in schools for the blind to ... career where their potential can be fully maximized. .... tropicamide 1% eye drops. .... Foster A, Gilbert C. Epidemiology of childhood blindness.

The ISOLDE experimental hall, wth the isotope separator in the upper left corner.

CERN Multimedia

CERN PhotoLab

1969-01-01

Beam tubes branch out from a switchyard, which by electrostatic deflectors direct beams of short-lived isotopes to various spectroscopic equipment. From left to right, Rudi Stoeckli at the separator control panel, Gilbert Droz and Henri Bersinger.

Journal of Biosciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

pp 495-501 Articles. How phenotypic plasticity made its way into molecular biology ... Human pancreatic islet progenitor cells demonstrate phenotypic plasticity in vitro · Maithili P .... Ageing and cancer as diseases of epigenesis · Scott F Gilbert.

MODELING THE 1958 LITUYA BAY MEGA-TSUNAMI, II

Directory of Open Access Journals (Sweden)

Charles L. Mader

2002-01-01

Full Text Available Lituya Bay, Alaska is a T-Shaped bay, 7 miles long and up to 2 miles wide. The two arms at the head of the bay, Gilbert and Crillon Inlets, are part of a trench along the Fairweather Fault. On July 8, 1958, an 7.5 Magnitude earthquake occurred along the Fairweather fault with an epicenter near Lituya Bay.A mega-tsunami wave was generated that washed out trees to a maximum altitude of 520 meters at the entrance of Gilbert Inlet. Much of the rest of the shoreline of the Bay was denuded by the tsunami from 30 to 200 meters altitude.In the previous study it was determined that if the 520 meter high run-up was 50 to 100 meters thick, the observed inundation in the rest of Lituya Bay could be numerically reproduced. It was also concluded that further studies would require full Navier-Stokes modeling similar to those required for asteroid generated tsunami waves.During the Summer of 2000, Hermann Fritz conducted experiments that reproduced the Lituya Bay 1958 event. The laboratory experiments indicated that the 1958 Lituya Bay 524 meter run-up on the spur ridge of Gilbert Inlet could be caused by a landslide impact.The Lituya Bay impact landslide generated tsunami was modeled with the full Navier- Stokes AMR Eulerian compressible hydrodynamic code called SAGE with includes the effect of gravity.

Vulture News - Vol 55 (2006)

African Journals Online (AJOL)

First record of Himalayan Griffon vulture Gyps himalyensis in Chhep, Preah Vihear, northern Cambodia · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Martin Gilbert, Song Chansocheat, Nadia Sureda, 4-5 ...

Regge expansion of a casual spectral function in electroproduction

International Nuclear Information System (INIS)

Ahmed, M.A.; Taha, M.O.

1975-01-01

The conjecture that a term in the Regge espansion of the Deser-Gilbert-Sudarshan spectral function in electroproduction may identically vanish is investigated. It is shown that this conjecture does not appear to be in agreement with experiment

Effect of spacer layer on the magnetization dynamics of permalloy/rare-earth/permalloy trilayers

International Nuclear Information System (INIS)

Luo, Chen; Yin, Yuli; Zhang, Dong; Jiang, Sheng; Yue, Jinjin; Zhai, Ya; Du, Jun; Zhai, Hongru

2015-01-01

The permalloy/rare-earth/permalloy trilayers with different types (Gd and Nd) and thicknesses of spacer layer are investigated using frequency dependence of ferromagnetic resonance (FMR) measurements at room temperature, which shows different behaviors with different rare earth spacer layers. By fitting the frequency dependence of the FMR resonance field and linewidth, we find that the in-plane uniaxial anisotropy retains its value for all samples, the perpendicular anisotropy remains almost unchanged for different thickness of Gd layer but the values are tailored by different thicknesses of Nd layer. The Gilbert damping is almost unchanged with different thicknesses of Gd; however, the Gilbert damping is significantly enhanced from 8.4×10 −3 to 20.1×10 −3 with 6 nm of Nd and then flatten out when the Nd thickness rises above 6 nm

The sixgill shark Hexanchus griseus is one of the most common ...

African Journals Online (AJOL)

denise

2002-11-01

Pisces, Selachii) de Angola. Notas Cent. Biol. Aquat. Trop., Lisboa 32: 1–23. SPRINGER, S. 1967 — Social organization of shark populations. In Sharks, Skates, and Rays. Gilbert, P. W., Mathewson, R. F. and D. P. Rall (Eds).

Large-angle magnetization dynamics investigated by vector-resolved magnetization-induced optical second-harmonic generation

NARCIS (Netherlands)

Gerrits, T.; Silva, T.J.; Nibarger, J.P.; Rasing, T.H.M.

2004-01-01

We examine the relationship between nonlinear magnetic responses and the change in the Gilbert damping parameter alpha for patterned and unpatterned thin Permalloy films when subjected to pulsed magnetic fields. An improved magnetization-vector-resolved technique utilizing magnetization-induced

Making a difference with Vision 2020: The Right to Sight? Lessons ...

African Journals Online (AJOL)

2014-05-09

May 9, 2014 ... states to adopt the Vision 2020 principles. More than 90 ..... adapt the Vision 2020 principles and advocate to stakeholders to address the ... Foster A, Gilbert C, Johnson G. Changing patterns in global blindness: 1988‑2008.

Pattern of Refractive Errors Among Ophthalmic Outpatients of ...

African Journals Online (AJOL)

The etiologic mechanism of RE can be both genetic ... system of a nonaccommodating eye fails to bring parallel rays of light to focus on the .... homatropine 1% eye‑drops. .... Abdull MM, Sivasubramaniam S, Murthy GV, Gilbert C, Abubakar T,.

Londoni jõujaamast sai moodsa kunsti muuseum / Tambet Kaugema

Index Scriptorium Estoniae

Kaugema, Tambet

2000-01-01

Moodsa kunsti muuseum Tate Modern sisaldab 20. saj. kunsti. Tate Britaini (seni Tate Gallery) jääb inglise kunst. Ümberehituse projekti tegid šveitsi arhitektid Jacques Herzog ja Pierre de Meuron. Jõujaama projekteeris Sir Giles Gilbert Scott

Lithium-enhanced radioactive iodine ablation of hyperthyroid patients

African Journals Online (AJOL)

accordance with department protocols on management of hyperthyroid ... variables or by the Pearson chi-square test or Fisher's exact test for ..... Medicine. 16th ed.. London: McGraw Hill; 2005. p. 2104–26. 5. Nordyke RA, Gilbert Jr. FI .

A new species of Besleria (Gesneriaceae) from the western Amazon rainforest

OpenAIRE

Gabriel Emiliano Ferreira; Andréa Onofre De Araújo; Michael John Gilbert Hopkins; Alain Chautems

2017-01-01

Gabriel Emiliano Ferreira, Andréa Onofre De Araújo, Michael John Gilbert Hopkins, Alain Chautems (2017): A new species of Besleria (Gesneriaceae) from the western Amazon rainforest. Brittonia 69 (2): 241-245, DOI: 10.1007/s12228-017-9464-6

Amplification factor variable amplifier

NARCIS (Netherlands)

Akitsugu, Oshita; Nauta, Bram

2007-01-01

PROBLEM TO BE SOLVED: To provide an amplification factor variable amplifier capable of achieving temperature compensation of an amplification factor over a wide variable amplification factor range. ; SOLUTION: A Gilbert type amplification factor variable amplifier 11 amplifies an input signal and

Popolnenije art-kollektsii

Index Scriptorium Estoniae

2008-01-01

Londoni kunstikoguja Anthony d'Offray kinkis oma kaasaegse kunsti kogu kunstigaleriile Tate Modern. Kogus on 232 tööd Andy Warholilt ja 69 fotot Diane Arbusilt. Esindatud on Jeff Koons, Gilbert ja George, Damien Hirst, Willem de Kooning, Robert Mapplethorpe

Health Education Intervention. An Annotated Bibliography. Nutrition Education Series Issue 13.

Science.gov (United States)

United Nations Educational, Scientific, and Cultural Organization, Paris (France).

This annotated bibliography contains 73 citations describing health education programs around the world. Countries represented include: Bangladesh, Egypt, Gambia, Gilbert Islands, Guatemala, Haiti, Honduras, Jamaica, Kenya, Indonesia, Nicaragua, Peru, Philippines, Swaziland, Thailand, Tunisia, Australia, Colombia, India, United Kingdom, Canada,…

CCAA Learning Paper 1 Integrating meteorological and indigenous ...

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

2011-03-29

Mar 29, 2011 ... Contributing authors: Ignitius Chagonda; Jacob Churi; Amadou Dieye; Boris Houenou; Said Hounkponou; Eric Kisiangani; Evans Kituyi; Cromwel Lukorito; Ayub Macharia; Henry Mahoo; Amos Majule; Paul Mapfumo; Florence Mtambanengwe; Francis Mugabe; Laban Ogallo; Gilbert Ouma; Amadou Sall; ...

RSM Outlook Winter 2013 : Growing Tomorrow's Entrepreneurs

NARCIS (Netherlands)

J. Whittern (Justine); D. Schreiner (Dorine)

2013-01-01

markdownabstract#### Innovation and the path to value (Russell Gilbert) At the RSM Leadership Summit in October, Frans van Houten, CEO of Royal Philips (pictured), gave a uniquely insightful presentation about the benefits of organisational transformation, innovation, and the importance of

RSM Outlook Summer 2012 : Blueprints for Greener Energy

NARCIS (Netherlands)

J. Whittern (Justine)

2012-01-01

markdownabstract#### Taking a global view (Russell Gilbert) Ruth Cairnie, Executive Vice President of Strategy and Planning for Royal Dutch Shell, discusses the forces driving the increasingly urgent need for sustainable energy and the factors that may determine whether we find solutions sooner

Bay-scale population structure in coastal Atlantic cod in Labrador and Newfoundland, Canada

DEFF Research Database (Denmark)

Ruzzante, D.E.; Wroblewski, J.S.; Taggart, C.T.

2000-01-01

Polymorphisms at five microsatellite DNA loci provide evidence that Atlantic cod Gadus morhua inhabiting Gilbert Bay, Labrador are genetically distinguishable from offshore cod on the north- east Newfoundland shelf and from inshore cod in Trinity Bay, Newfoundland. Antifreeze activity in the bloo...

Amplification factor variable amplifier

NARCIS (Netherlands)

Akitsugu, Oshita; Nauta, Bram

2010-01-01

PROBLEM TO BE SOLVED: To provide an amplification factor variable amplifier capable of achieving temperature compensation of an amplification factor over a wide variable amplification factor range. ;SOLUTION: A Gilbert type amplification factor variable amplifier 11 amplifies an input signal and can

Institute for Genomics and Systems Biology

Science.gov (United States)

Institute for Genomics and Systems Biology Discover. Predict. Improve. Advancing Human and , 2015 See all Research Papers Featured Video Introduction to Systems Biology Video: Introduction to Systems Biology News Jack Gilbert Heading UChicago Startup that Aims to Predict Behavior of Trillions of

L. Harrison: Mass (to St. Anthony); A. Pärt: Berliner Messe / Robert Cowan

Index Scriptorium Estoniae

Cowan, Robert

1994-01-01

Uuest heliplaadist "L. Harrison: Mass (to St. Anthony); A. Pärt: Berliner Messe. Oregon Repertory Singers / Gilbert Seeley. Koch International Classics CD 37 177-2; Pärt - comparative version: Estonian Phil. Chbr. Ch., Tallinn CO / Kaljuste" (11/93)(ECM) 439 162-2

Download this PDF file

African Journals Online (AJOL)

egyptian hak

Even where larvae are mobile and can make their own choices to a ... (Sadeghi & Gilbert 2000c): there appears to be a weak preference-performance correlation in .... 40) to give a rough idea of colony size: other features affecting prey usage ...

The Life of the Mind: A Tribute to Three Professors.

Science.gov (United States)

Yamamoto, Kaoru

2000-01-01

This speech by a distinguished scholar in educational psychology recounts, with appreciation, his educational experiences under three distinguished professors: Toshio Maki, his undergraduate thesis supervisor in Japan; E. Paul Torrance, the prominent educational psychologist; and C. Gilbert Wrenn, his doctoral advisor. (DB)

Vulnerability of semi-enclosed marine systems to environmental disturbances

Digital Repository Service at National Institute of Oceanography (India)

MacCracken, M.; Escobar-Briones, E; Gilbert, D.; Korotaev, G.; Naqvi, S.W.A.; Perillo, G.M.E; Rixen, T.; Stanev, E; Sundby, B.; Thomas, H.; Unger, D.; Urban, E

Semi-Enclosed Marine Systems to Environmental Disturbances Michael MacCracken t Elva Escobar-Briones t Denis Gilbert, Gennady Korotaev, Wajih Naqvi, Gerardo M.E. Perillo, Tim Rixen, Emil Stanev, Bj0rn Sundby, Helmuth Thomas t Daniela Unger, and Edward R. Urban, Jr...

Closing the Gap: An Analysis of Options for Improving the USAF Fighter Fleet from 2105 to 2035

Science.gov (United States)

2015-10-01

Lanchester Equations. Graduate Research Paper, (Wright Patterson AFB: Air Force Institute of Technology, 2011), 45 58 John P. Geiss,. et al. Blue...Gilbert, Ronald E. Strategic Implications of US Fighter Force Reductions: Air to Air Combat Modelling Using Lanchester Equations. Graduate Research Paper

Egyptian Journal of Biology

African Journals Online (AJOL)

Dragonflies and damselflies of the St Katherine Protectorate · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. A Power, F Gilbert, 95-100. http://dx.doi.org/10.4314/ejb.v16i1.13 ...

Bulk and edge spin transport in topological magnon insulators

NARCIS (Netherlands)

Rückriegel, A.; Brataas, A.; Duine, R.A.

2018-01-01

We investigate the spin transport properties of a topological magnon insulator, a magnetic insulator characterized by topologically nontrivial bulk magnon bands and protected magnon edge modes located in the bulk band gaps. Employing the Landau-Lifshitz-Gilbert phenomenology, we calculate the spin

Gossypiboma of the Abdomen and Pelvis; A Recurring Error

African Journals Online (AJOL)

Moi Hospital, Voi, Kenya. Correspondence to: Dr. Gilbert Maranya, P.O Box 91066-80103 Mombasa, Kenya. Email: gilbertmaranya@gmail.com. CASE SERIES. Abstract. Introduction: Gossypiboma is a retained surgical sponge commonly in the abdomen and pelvis. Risk factors include emergency and prolonged surgery.

Sphincterodiplostomum musculosum (Digenea, Diplostomidae) infecting Steindachnerina insculpta (Characiformes, Curimatidae) in the Chavantes Reservoir, Southeastern Brazil.

Science.gov (United States)

Zago, Aline Cristina; Franceschini, Lidiane; Ramos, Igor Paiva; Zica, Erica de Oliveira Penha; Wunderlich, Alison Carlos; Carvalho, Edmir Daniel; Silva, Reinaldo José da

2013-01-01

This study aimed to report the infection by Sphincterodiplostomum musculosum metacercariae in Steindachnerina insculpta from the Chavantes Reservoir, medium Paranapanema River, municipality of Ipaussu, State of São Paulo, Brazil. Thirty specimens of S. insculpta were collected and 29 were infected with S. musculosum metacercariae (prevalence = 96.67%) in the eyes and visceral cavity. The mean intensity of infection and abundance were 96.6 ± 29.41 (7-846) and 93.3 ± 28.6 (0-846), respectively. Positive correlation was observed between parasite abundance in the eyes and standard length (rs = 0.5, p = 0.005), total weight (rs = 0.649, p = 0.0001), and condition factor (rs = 0.439, p = 0.0154). The high parasitism rates by S. musculosum metacercariae in S. insculpta can be an indicative that this fish species is highly susceptible to infection by this diplostomid, and even reflect the presence of a large abundance of the intermediate host. Moreover, S. musculosum metacercariae are reported for the first time in S. insculpta.

Francis Gilbert * & Samy Zalat Introduction In collaboration with the ...

African Journals Online (AJOL)

Francis

1 School of Biology, University Park, University of Nottingham, Nottingham ... UK is in general very good at scientific research, and why Egypt, in general, is not. The reasons concern the level and distribution method of funding, the way PhD ...

HIRS-AMTS satellite sounding system test - Theoretical and empirical vertical resolving power. [High resolution Infrared Radiation Sounder - Advanced Moisture and Temperature Sounder

Science.gov (United States)

Thompson, O. E.

1982-01-01

The present investigation is concerned with the vertical resolving power of satellite-borne temperature sounding instruments. Information is presented on the capabilities of the High Resolution Infrared Radiation Sounder (HIRS) and a proposed sounding instrument called the Advanced Moisture and Temperature Sounder (AMTS). Two quite different methods for assessing the vertical resolving power of satellite sounders are discussed. The first is the theoretical method of Conrath (1972) which was patterned after the work of Backus and Gilbert (1968) The Backus-Gilbert-Conrath (BGC) approach includes a formalism for deriving a retrieval algorithm for optimizing the vertical resolving power. However, a retrieval algorithm constructed in the BGC optimal fashion is not necessarily optimal as far as actual temperature retrievals are concerned. Thus, an independent criterion for vertical resolving power is discussed. The criterion is based on actual retrievals of signal structure in the temperature field.

ISSN 2073-9990 East Cent Afr J Surg

African Journals Online (AJOL)

Background: Knowledge of the causes of poor vision among children will contribute to interventions and ... secondary eye care clinic at State Specialist Hospital in Osogbo, Nigeria. .... Dilated fundoscopy using a combination of cyclopentolate and tropicamide eye drops ..... Gilbert C. New issues in childhood blindness.

A Review of Research Related to Unmanned Aircraft System Visual Observers

Science.gov (United States)

2014-10-01

simulation of visual detection performance derived from published data. Proceedings of the 2nd International Symposium on Aviation Psychology at the Ohio...State University, 465-471. Gilbert, M. (1950). Colour perception in parafoveal vision. Proceedings of the Physical Society, Section B. 63(2), 83-89

The Interplay of Silent Reading, Reading-While-Listening and Listening-Only

Science.gov (United States)

Nakashima, Kohji; Stephens, Meredith; Kamata, Suzanne

2018-01-01

Leading scholars (Gilbert, 2009; Walter, 2008) have highlighted the importance of phonological processing in learning to read. Nevertheless, reading in Japan has traditionally been taught without adequate attention to the role of phonological processing. Accordingly, it was speculated that Japanese university students would demonstrate superior…

Cultural Resources Inventory of the Montz Freshwater Diversion Project Corridor, St. Charles Parish, Louisiana. Volume 1.

Science.gov (United States)

1986-06-23

o’uisiana. Genealogical Publishing Company, Inc., Baltimore. Din, Gilbert C. (editor) 1917 Louisiana in 1776: A Memoria of Francisco Bouliiney...of Engineers. Shelford, Victor E. 1963 The Ecology of North America. University o- T-IlinoTis Press, Urbana . Sitterson, J. Carlyle 1953 Sugar

Strategic Implications of U.S. Fighter Force Reductions: Air-to-Air Combat Modeling Using Lanchester Equations

Science.gov (United States)

2011-06-01

STRATEGIC IMPLICATIONS OF US FIGHTER FORCE REDUCTIONS: AIR-TO-AIR COMBAT MODELING USING LANCHESTER ...TO-AIR COMBAT MODELING USING LANCHESTER EQUATIONS GRADUATE RESEARCH PAPER Presented to the Faculty Department of Operational Sciences...MODELING USING LANCHESTER EQUATIONS Ronald E. Gilbert, BS, MBA Major, USAF Approved

Tanks Within The Marine Air Ground Task Force: A N/A Versatile Combat Multiplier Throughout the Full Spectrum of Operations

Science.gov (United States)

2010-04-26

Estes, Marines Under Armor : The Marine Corps and the Armored Fighting Vehicle, 1916- 2000. Naval Institute Press, Annapolis MD, 2000. Prior to WWIT...Marines Under Armor : The Marine Corps and the Armored Fighting Vehicle, 1916-2000. Naval Institute Press, Annapolis, MA: 2000 Gilbert, Oscar E

Research

African Journals Online (AJOL)

abp

Dioulasso,. Burkina Faso. Aimé Arsène Yaméogo1,2,&, Carole Gilberte .... recommandations de la Mayo Clinic aux USA [11] révèlent d'ailleurs que les primo infections tuberculeuses devraient faire l'objet d'un traitement à ...

77 FR 2975 - Roosevelt Water Conservation District; Notice of Termination of Exemption by Implied Surrender...

Science.gov (United States)

2012-01-20

.... Project No.: 11572-001. c. Date Initiated: January 9, 2012. d. Exemptee: Roosevelt Water Conservation District. e. Name and Location of Project: The Roosevelt Water Conservation District Conduit Hydropower..., Roosevelt Water Conservation District, 2344 S. Higley Road, Gilbert, AZ 82595-4794, (480) 988-9586. [[Page...

'Tom & Viv' ehk Elulugu kunstiks / Jaak Rähesoo

Index Scriptorium Estoniae

Rähesoo, Jaak, 1941-

1996-01-01

Mängufilm Thomas Stearns Eliotist Michael Hastingsi näidendi põhjal, stsenaristid Michael Hastings ja Adrian Hodges, re̓issöör Brian Gilbert : Suurbritannia, 1994. Ka autori suhtumisest Madis Kõivu ja Jaan Krossi biograafilistesse teostesse. Järg: 26. jaan., lk. 12

Untitled

African Journals Online (AJOL)

Biodiversity And Spatial Distribution of Rotifera in a Shallow Hypereutrophic. Tropical Lake (Cameroon) ... Key words : Rotifera, biodiversity, hypereutrophic lake, spatial distribution, tropical zone. RÉSUME. Une étude qualitative de la ...... Malaysia and Singapour with remark on some species. Hydrobiol, 78: 205-219. Gilbert ...

[Pictures of autism in the American cinema].

Science.gov (United States)

Matusevich, Mauricio; Matusevich, Daniel

2005-01-01

The aim of this article is to analyze the different ways in which the autism appears in the american cinema; the genres chosen are comedy, thriller and road movie because they represent classical movie patterns. The movies commented are: Mercury rising, Rainman, Who eats Gilbert Grape.

Imagination, Perceptual Engagement and Sound Mediation. Thinking Technologically-Produced Sound Through Simondon's Concept of the Image

NARCIS (Netherlands)

Paiuk, G.

2018-01-01

Applying French philosopher Gilbert Simondon’s concept of image to the domain of the sonorous, this article aims to tackle how imagination is constitutional in our grasp of sound, and how this grasp is informed by the protocols and affordances of technological tools of sound reproduction and

Muusikauudiseid maailmast / Nele-Eva Steinfeld

Index Scriptorium Estoniae

Steinfeld, Nele-Eva

2015-01-01

Lühisõnumeid maailmast: Grammy võitjad selgunud. Suri metsosoproan Jelena Obraztsova. Dubaisse kerkib läbipaistev ooperimaja. Lahkus pianist Aldo Ciccolini. Alan Gilbert lahkub New Yorgi Filharmoonikute juurest. Šveitsi-Romaani orkestri uueks peadirigendiks saab Jonathan Nott. Taani kammerorkester loodab "Hooandja"-laadsele toetussüsteemile jne.

Comparison of Escherichia coli tRNAPhe in the free state, in the ternary complex and in the ribosomal A and P sites by chemical probing

DEFF Research Database (Denmark)

Douthwaite, S; Garrett, R A; Wagner, R

1983-01-01

tRNAPheE.coli was modified at accessible guanosine, cytidine, and adenosine residues using the chemical modification method described by Peattie and Gilbert [Proc. Natl Acad. Sci. USA, 77, 4679-4689 (1980)]. Modification characteristics of the tRNA in the free state, in the ternary complex...

Don't "Short Circuit" STEM Instruction

Science.gov (United States)

Bruxvoort, Crystal; Jadrich, James

2016-01-01

Science students should undertake engineering design projects and carry out scientific investigations, as recommended by the "Next Generation Science Standards" (NGSS Lead States 2013). However, studies show that students misconstrue the goals of science and engineering and are uncertain about their respective practices (Gilbert and Wade…

Flora of St Katherine Protectorate: key to families and genera ...

African Journals Online (AJOL)

Flora of St Katherine Protectorate: key to families and genera. Wafaa Kamel, Magda Gazar, Samy Zalat, Francis Gilbert. Abstract. Egyptian Journal of Natural History Vol.1 1999: 1-39. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT.

A novel approach to negative feedback in RX front-ends

DEFF Research Database (Denmark)

Vandi, Luca; Andreani, Pietro; Tired, Tobias

2006-01-01

A new approach to negative feedback is proposed and applied to active mixer cells based on Gilbert multiplier. The feedback can be exploited in several ways, and different configurations are derived. A dual-loop topology provides a solution for inductor-less broad-band receiver stages. The nature...

Egyptian Journal of Biology - Vol 12 (2010)

African Journals Online (AJOL)

Monitoring of the endemic Sinai Baton Blue butterfly Pseudophilotes sinaicus in the St Katherine Protectorate, South Sinai · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. S Rashad, M Kamel, F Gilbert, AED Ismail, M James, S Zalat ...

Spin dynamics and frequency dependence of magnetic damping study in soft ferromagnetic FeTaC film with a stripe domain structure

Energy Technology Data Exchange (ETDEWEB)

Samantaray, B., E-mail: iitg.biswanath@gmail.com; Ranganathan, R.; Mandal, P. [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700 064 (India); Singh, Akhilesh K.; Perumal, A. [Department of Physics, Indian Institute of Technology Guwahati, Guwahati - 781039 (India)

2015-06-15

Perpendicular magnetic anisotropy (PMA) and low magnetic damping are the key factors for the free layer magnetization switching by spin transfer torque technique in magnetic tunnel junction devices. The magnetization precessional dynamics in soft ferromagnetic FeTaC thin film with a stripe domain structure was explored in broad band frequency range by employing micro-strip ferromagnetic resonance technique. The polar angle variation of resonance field and linewidth at different frequencies have been analyzed numerically using Landau-Lifshitz-Gilbert equation by taking into account the total free energy density of the film. The numerically estimated parameters Landé g-factor, PMA constant, and effective magnetization are found to be 2.1, 2 × 10{sup 5} erg/cm{sup 3} and 7145 Oe, respectively. The frequency dependence of Gilbert damping parameter (α) is evaluated by considering both intrinsic and extrinsic effects into the total linewidth analysis. The value of α is found to be 0.006 at 10 GHz and it increases monotonically with decreasing precessional frequency.

The science behind the smile. Interview by Gardiner Morse.

Science.gov (United States)

Gilbert, Daniel

2012-01-01

Only recently have we been able to apply science to one of the world's oldest questions: "What is the nature of happiness?" In this edited interview, the author of the 2006 best seller Stumbling on Happiness surveys the field. Gilbert explores the sudden emergence of happiness as a discipline, reviews the major findings (including the mistakes we all make in predicting how happy or miserable we'll be), and examines the role of happiness in productivity on the job. He describes what makes us truly happy-it's not a promotion or a new house-and sketches out a "happiness diet" that emphasizes small, routine efforts. Looking forward, Gilbert discusses the breakthrough work of his colleague Matthew Killingsworth, whose iPhoneenabled real-time surveys of people's moods are providing an ultra-high-resolution picture of how our emotional states shift from minute to minute. A sidebar by Killingsworth offers a preliminary look at his findings and their implications for our personal and workplace lives.

Nuclear level density effects on the evaluated cross-sections of nickel isotopes

International Nuclear Information System (INIS)

Garg, S.B.

1995-01-01

A detailed investigation has been made to estimate the effect of various level density options on the computed neutron induced reaction cross-sections of Ni-58 and Ni-60 covering the energy range 5-25 MeV in the framework of the multistep Hauser-Feshbach statistical model scheme which accounts for the pre-equilibrium decay according to the Kalbach exciton model and gamma-ray competition according to the giant dipole radiation model of Brink and Axel. Various level density options considered in this paper are based on the Original Gilbert-Cameron, Improved Gilbert-Cameron, Back-Shifted Fermi gas and the Ingatyuk-Smirenkin-Tishin approaches. The effect of these different level density prescriptions is brought out with special reference to (n,p) (n,2n) (n,α) and total production cross-sections for neutron, hydrogen, helium and gamma-rays which are of technological importance for fission and fusion based reactor systems. (author). 18 refs, 2 figs

ISO 9000 for the U.S. nuclear industry? Why not?

International Nuclear Information System (INIS)

Wilson, R.B.

1993-01-01

The growing popularity of the recently developed International Standard for Quality, ISO 9000, is challenging the traditional approach to ensuring quality in the nuclear industry and raising new questions as to whether this standard with its likely worldwide acceptance could become a successor to 10CFR50, Appendix B. The experience of a jointly owned British-American engineering consulting firm may be a harbinger of the future. Halcrow Gilbert Associates, Limited (HGA), was established in the fall of 1988 as a joint venture between two of the world's largest consulting engineering firms, Sir William Halcrow ampersand Partners, Ltd., of the United Kingdom and Gilbert/Commonwealth, Inc., of the United States. Although it initially concentrated on nonpower infrastructure markets, such as environmental, transportation, and alternative energy systems, it has broadened its focus to include the electric power industry over the past 2 yr and expects to play a major role in the U.K. market for this sector

The first metatarsal web space: its applied anatomy and usage in tracing the first dorsal metatarsal artery in thumb reconstruction.

Science.gov (United States)

Xu, Yong-Qing; Li, Jun; Zhong, Shi-Zhen; Xu, Da-Chuan; Xu, Xiao-Shan; Guo, Yuan-Fa; Wang, Xin-Min; Li, Zhu-Yi; Zhu, Yue-Liang

2004-12-01

To clarify the anatomical relationship of the structures in the first toe webbing space for better dissection of toes in thumb reconstruction. The first dorsal metatarsal artery, the first deep transverse metatarsal ligament and the extensor expansion were observed on 42 adult cadaveric lower extremities. Clinically the method of tracing the first dorsal metatarsal artery around the space of the extensor expansion was used in 36 cases of thumb reconstruction. The distal segments of the first dorsal metatarsal artery of Gilbert types I and II were located superficially to the extensor expansion. The harvesting time of a toe was shortened from 90 minutes to 50 minutes with 100% survival of reconstructed fingers. The distal segment of the first dorsal metatarsal artery lies constantly at the superficial layer of the extensor expansion. Most of the first metatarsal arteries of Gilbert types I and II can be easily located via the combined sequential and reverse dissection around the space of the extensor expansion.

Staff members with 25 years' service at CERN in 2005

CERN Multimedia

2005-01-01

The 74 staff members who have spent 25 years at CERN in 2005 were invited by the Director-General to a reception in their honour on 22 November. ADRIAN Gilbert / AB ALLIOD Marie-Noëlle / AB ANTOINET Gérard / SC AUBERT Marc / TS AUQUIER Christian / SC BAIRD Simon / AB BARRAS Suzanne / PH BAUD Richard / AT BELLONI Jean / SC BERTUOL Gilbert / SC BLANC Jean-Luc / AB BONVALLET Guy / SC BOSSUS Patrice / SC BROERE Johannes / AB BRU Yvon / TS BURDAIRON Alain / TS CANARD Philippe / AT CAVALLO Patrice / SC CHARRA Patrick / PH CHATAIGNEAU Marc / SC COLIN Gilles / SC DAHLEN Pierre / AB DE GROOT Johannes / PH DEDOBBELER Bernard / TS DELCAMBRE Jean Pierre / SC DELENCLOS Yves / TS DEROYER Patrick / SC DESBISSONS Christian / SC DRAPER Mick / AB DROUX Pascal / FI DUCASTEL Claude / TS DUMUR Alain / SC FOCKER Gerrit / AB FOFFANO Giuseppe / TS FORRAT Isabelle / IT FREI Marie-José / DSU FRESSARD Michel / TS GAGNIERE Daniel / TS GIUDICI Pierre-Ange / PH GOICOECHEA Bernard / TS GUEHO Alain / TS GUENEHEC François / SC JE...

Saw-toothed pattern of sedimentary paleointensity records explained by cumulative viscous remanence

NARCIS (Netherlands)

Kok, Yvo S.; Tauxe, Lisa

1996-01-01

The relative paleointensity of the earth's magnetic field from ODP Site 851 has been characterized by progressive decay w x towards polarity reversals, followed by sharp recovery of pre-reversal values 1 . We resampled the Gilbert-Gaub reversal boundary of this deep-sea core, and show that during

Psychophysics of Complex Auditory and Speech Stimuli

Science.gov (United States)

1993-10-31

indices (dl were then calculated from this matrix following the ABX response model suggested by Macmillan 5 and Creelman (1991: also Pierce & Gilbert, 1958...ofSpechi Pceceptio Thle Htague: Nijhoff Macmillan, N. A, & Creelman , C. D (1990). Detection Tbeorx,. A IUs,-es Cnide Cambnidge: Cambridge. Mart, 1). (1982

Management Textbooks as Propaganda.

Science.gov (United States)

Cameron, Kim S.; Ireland, R. Duane; Lussier, Robert N.; New, J. Randolph; Robbins, Stephen P.

2003-01-01

Four management textbook authors react to the metaphor of textbooks as propaganda. All write to support managerial ideology and are aware of the market, but believe their role in shaping the field is limited. Includes two responses: "Propaganda, Trusteeship, and Artifact" (Daniel R. Gilbert) and "The Hegemonic Discourse of…

Biological and technological effects of some mulberry varieties and ...

African Journals Online (AJOL)

egyptian hak

environment. Evolution 50: 434-437. Mahmoud MAM, Zalat SM, El-Akkad SS & Gilbert F (2008) Genetic variability in the endemic bee Anthophora pauperata among wadis in St Katherine Protectorate. Egyptian Journal of Biology 10: 77-86. Marden JH (1989) Bodybuilding dragonflies: costs and benefits of maximizing flight ...

Kalanchoe hypseloleuce (Crassulaceae), a new species from eastern Ethiopia, with notes on its habitat

DEFF Research Database (Denmark)

Friis, Ib; Gilbert, Michael G.; van Breugel, Paulo

2017-01-01

A new species of Kalanchoe, K. hypseloleuce Friis & M. G. Gilbert, was found during field work in Ethiopia in 2015, and is established here. It is characterised by its tall stature (2 – 3 m), entire, sessile, lanceolate leaves and pure white flowers with abaxially minutely papillose corolla lobes...

Grain-size sorting in grainflows at the lee side of deltas

NARCIS (Netherlands)

Kleinhans, M.G.

2005-01-01

The sorting of sediment mixtures at the lee slope of deltas (at the angle of repose) is studied with experiments in a narrow, deep flume with subaqueous Gilbert-type deltas using varied flow conditions and different sediment mixtures. Sediment deposition and sorting on the lee slope of the delta

Generalized density-functional theory: Conquering the N ...

Indian Academy of Sciences (India)

Unknown

mension – computational costs grow exponentially with increasing numbers of electrons. This motivates work that uses .... tional cost.7–10 In approaches based on Γ2, we trade the daunting problem of representing a high-dimen- .... mately accounting for N-representability. Moving forward another decade, Gilbert,13 Don-.

A flicker noise/IM3 cancellation technique for active mixer using negative impedance

NARCIS (Netherlands)

Cheng, W.; Annema, Anne J.; Wienk, Gerhardus J.M.; Nauta, Bram

2013-01-01

Abstract—This paper presents an approach to simultaneously cancel flicker noise and IM3 in Gilbert-type mixers, utilizing negative impedances. For proof of concept, two prototype double-balanced mixers in 0.16- m CMOS are fabricated. The first demonstration mixer chip was optimized for full IM3

Wideband Monolithic Microwave Integrated Circuit Frequency Converters with GaAs mHEMT Technology

DEFF Research Database (Denmark)

Krozer, Viktor; Johansen, Tom Keinicke; Djurhuus, Torsten

2005-01-01

We present monolithic microwave integrated circuit (MMIC) frequency converter, which can be used for up and down conversion, due to the large RF and IF port bandwidth. The MMIC converters are based on commercially available GaAs mHEMT technology and are comprised of a Gilbert mixer cell core...

Polistes olivaceous decreases biotic surface colonization

African Journals Online (AJOL)

PRECIOUS

2009-12-15

Dec 15, 2009 ... grown under planktonic conditions (Brown and Gilbert,. 1993 ... barrier that prevents the diffusion of acids produced by ... Medicine as an anti-oxygenation agent for treat-ing renal ... were performed on supplemented Brain Heart Infusion (BHI) Agar .... new antibiotics and 61% of new antitumor drugs appro-.

Reversible decisions: The grass isn't merely greener on the other side; it's also very brown over here

NARCIS (Netherlands)

Bullens, L.; van Harreveld, F.; Förster, J.; van der Pligt, J.

2013-01-01

People generally say they prefer to have the opportunity to revise decisions at a later point in time. Research has shown, however, that reversible decision-making leads to lower as opposed to higher levels of post-choice satisfaction (Gilbert & Ebert, 2002). In three studies we aimed to gain

Euthanasia and assisted suicide: a Christian ethical perspective | De ...

African Journals Online (AJOL)

This article introduces and compares the contrasting views of two well-known theologians, Gilbert Meilaender and Harry Kuitert, on euthanasia and medically assisted suicide. Meilaender rejects euthanasia and medically assisted suicide, but accepts refusal of treatment, as long as it is not done with the intention to cause ...

Association of human liver bilirubin UDP-glucuronyltransferase activity with a polymorphism in the promoter region of the UGT1A1 gene

NARCIS (Netherlands)

Raijmakers, MTM; Jansen, PLM; Steegers, EAP; Peters, WHM

Background/Aims: Gilbert's syndrome is a benign form of a deficiency in bilirubin glucuronidation. It is associated with a homozygous polymorphism, A(TA)(7)TAA instead of A(TA)(6)TAA, in the TATA-box of the promoter region of the bilirubin UDP-glucuronyltransferase gene. In this study the

Egyptian Journal of Biology - Vol 16 (2014)

African Journals Online (AJOL)

Host preferences of aphidophagous hoverflies from field distribution of their larvae · EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. H Sadeghi, G Rotheray, P Laska, F Gilbert, 1-16. http://dx.doi.org/10.4314/ejb.v16i1.1 ...

Effective Teaching and Learning in Interprofessional Education in Child Welfare

Science.gov (United States)

Whiteley, Robert F.; Gillespie, Judy; Robinson, Cathy; Watts, Wilda; Carter, Deb

2014-01-01

This article reports on research regarding interprofessional education (IPE) in child welfare conducted in 2009 and 2010. Pre service nursing, social worker and teacher education candidates participated in a workshop that "exposed" (Charles, Bainbridge & Gilbert, 2010) students to IPE in child welfare. This paper addresses a gap in…

James Dwight Dana and John Strong Newberry in the US Pacific Northwest: The roots of American fluvialism

Science.gov (United States)

O'Connor, Jim E.

2018-01-01

Recognition of the power of rivers to carve landscapes transformed geology and geomorphology in the late nineteenth century. Wide acceptance of this concept—then known as “fluvialism”—owes to many factors and people, several associated with exploration of western North America. Especially famous are the federal geographic and geologic surveys of the US Southwest with John Wesley Powell and Grove Karl Gilbert, which produced key insights regarding river processes. Yet earlier and less-known surveys also engaged young geologists embarking on tremendously influential careers, particularly the 1838–1842 US Exploring Expedition with James Dwight Dana and the 1853–1855 railroad surveys including John Strong Newberry. Informed but little constrained by European and British perspectives on landscape formation, Dana and Newberry built compelling cases for the erosive power of rivers, largely from observations in the US Pacific Northwest. They seeded the insights of the later southwestern surveys, Dana by his writings and station at Yale and his hugely influential Manual of Geology, published in 1863, and Newberry by becoming the first geologist to explore the dramatic river-carved canyons of the Southwest and then a forceful proponent of the federal surveys spotlighting the erosional landscapes. Newberry also gave Gilbert his start as a geologist. Although Dana and Newberry are renowned early American geologists, their geomorphic contributions were overshadowed by the works of Powell, Gilbert, and William Morris Davis. Yet Dana and Newberry were the first ardent American proponents of fluvialism, providing strong roots that in just a few decades transformed western geology, roots nourished in large measure by the geologically fertile landscapes of the US Pacific Northwest.

Processes controlling the retreat of the Isles Dernieres, a Louisiana barrier-island chain

Science.gov (United States)

Dingler, John R.; Reiss, Thomas E.

1991-01-01

The Isles Dernieres is a low-lying, transgressive barrier-island chain situated about 150 km west of the modern Mississippi delta. Much of the Isles Dernieres consists of highly dissected salt-marsh muds that lie at or slightly above sea level and are covered by a veneer of sand along the shoreline facing the Gulf of Mexico. Maximum berm elevations are generally less than 1.5 m above mean sea level. Since the mid-1800s, the initial island has been fragmented into four islands, and the beach face has retreated landward at a rate of more than 10 m/yr. The dominant processes controlling degradation of the chain are cold fronts that pass through the area several times each year and occasional hurricanes. Beach surveys over a 2-year period on the Isles Dernieres document irreversible beach-face retreat in conjunction with multiple cold fronts and one major hurricane (Gilbert). Although both the hurricane and the cold fronts caused the island to erode, the erosional patterns of the two storm types differed from each other. During the two years, over 60 cold fronts collectively caused about 37 m of beach-face retreat, whereas Gilbert itself produced more than 40 m of retreat. A major difference between the two storm types was in the percentage of washover sand produced by each. Commonly, the cold fronts did not create enough of a storm surge to overtop the berm, so most of the material removed from the beach face must have moved offshore or alongshore. Gilbert, in contrast, inundated the study site, and essentially all the sand removed from the beach face moved to the backshore.

Updated estimates of 239240Pu + 241Am inventory, spatial pattern, and soil tonnage for removal at Nuclear Site-201, NTS

International Nuclear Information System (INIS)

Simpson, J.C.; Gilbert, R.O.

1982-04-01

Updated estimates of 239 240 Pu + 241 Am inventory and spatial pattern in surface soil are given for Nuclear Site (NS)-201 in Area 18 of the Nevada Test Site (NTS). These new estimates are based on 712 241 Am soil concentrations including 185 data values not previously available. Estimates were obtained using essentially the same Kriging techniques and the estimated average 239 240 Pu to 241 Am ratio of 7.5 used by Simpson and Gilbert (1980) to obtain previous results. Estimated concentration contours, 68% confidence bands for the contours and estimated median concentrations for 50 x 50 ft blocks are given. The total Pu + Am inventory estimated to be in the top 5 cm of soil over the 109 hectare study (an area 5.2 hectares larger than used by Simpson and Gilbert, 1980) is approximately 16.3 curies. The approximate 68% confidence interval on this inventory estimate is about 6.7 to 45.6 curies. It is estimated that about 58 acres (approx. = 23 hectares) of land in the study are contaminated at levels greater than 40 pCi/g which includes about 40 acres (approx. = 16 hectares) at levels greater than 160 pCi/g. Approximately 28,000 tons of soil would need to be removed (to 15 cm depth) to clean up all areas with estimated concentrates greater than or equal to 160 pCi/g. About 41,000 tons would require removal at the 40 pCi/g level. These new estimates of inventory and spatial patterns are within the range of sampling error of previous estimates obtained by Simpson and Gilbert

Assessing the impacts of climate change and dams on floodplain inundation and wetland connectivity in the wet-dry tropics of northern Australia

Science.gov (United States)

Karim, Fazlul; Dutta, Dushmanta; Marvanek, Steve; Petheram, Cuan; Ticehurst, Catherine; Lerat, Julien; Kim, Shaun; Yang, Ang

2015-03-01

Floodplain wetlands and their hydrological connectivity with main river channels in the Australian wet-dry tropics are under increasing pressure from global climate change and water resource development, and there is a need for modelling tools to estimate the time dynamics of connectivity. This paper describes an integrated modelling framework combining conceptual rainfall-runoff modelling, river system modelling and hydrodynamic (HD) modelling to estimate hydrological connectivity between wetlands and rivers in the Flinders and Gilbert river catchments in northern Australia. Three historical flood events ranging from a mean annual flood to a 35-year return period flood were investigated using a two dimensional HD model (MIKE 21). Inflows from upstream catchments were estimated using a river network model. Local runoff within the HD modelling domain was simulated using the Sacramento rainfall-runoff model. The Shuttle Radar Topography Mission (SRTM) derived 30 m DEM was used to reproduce floodplain topography, stream networks and wetlands in the HD model. The HD model was calibrated using stream gauge data and inundation maps derived from satellite (MODIS: MODerate resolution Imaging Spectroradiometer) imagery. An algorithm was developed to combine the simulated water heights with the DEM to quantify inundation and flow connection between wetlands and rivers. The connectivity of 18 ecologically important wetlands on the Flinders floodplain and 7 on the Gilbert floodplain were quantified. The impacts of climate change and water resource development on connectivity to individual wetlands were assessed under a projected dry climate (2nd driest of 15 GCMs), wet climate (2nd wettest of 15 GCMs) and dam conditions. The results indicate that changes in rainfall under a wetter and drier future climate could have large impacts on area, duration and frequency of inundation and connectivity. Topographic relief, river bank elevation and flood magnitude were found to be the key

Rivers turned to rock: Late Quaternary alluvial induration influencing the behaviour and morphology of an anabranching river in the Australian monsoon tropics

Science.gov (United States)

Nanson, Gerald C.; Jones, Brian G.; Price, David M.; Pietsch, Timothy J.

2005-09-01

Late Quaternary alluvial induration has greatly influenced contemporary channel morphology on the anabranching Gilbert River in the monsoon tropics of the Gulf of Carpentaria. The Gilbert, one of a number of rivers in this region, has contributed to an extensive system of coalescing low-gradient and partly indurated riverine plains. Extensive channel sands were deposited by enhanced flow conditions during marine oxygen isotope (OI) Stage 5. Subsequent flow declined, probably associated with increased aridity, however, enhanced runoff recurred again in OI Stages 4-3 (˜65-50 ka). Aridity then capped these plains with 4-7 m of mud. A widespread network of sandy distributary channels was incised into this muddy surface from sometime after the Last Glacial Maximum (LGM) to the mid Holocene during a fluvial episode more active than the present but less so than those of OI Stages 5 and 3. This network is still partly active but with channel avulsion and abandonment now occurring largely proximal to the main Gilbert flow path. A tropical climate and reactive catchment lithology have enhanced chemical weathering and lithification of alluvium along the river resulting in the formation of small rapids, waterfalls and inset gorges, features characteristic more of bedrock than alluvial systems. Thermoluminescence (TL) and comparative optically stimulated luminescence (OSL) ages of the sediments are presented along with U/Th ages of pedogenic calcrete and Fe/Mn oxyhydroxide/ oxide accumulations. They show that calcrete precipitated during the Late Quaternary at times similar to those that favoured ferricrete formation, possibly because of an alternating wet-dry climate. Intense chemical alteration of the alluvium leading to induration appears to have prevailed for much of the Late Quaternary but, probably due to exceptional dryness, not during the LGM. The result has been restricted channel migration and a reduced capacity for the channel to adjust and accommodate sudden

Magnetization damping in two-component metal oxide micropowder and nanopowder compacts by broadband ferromagnetic resonance measurements

Science.gov (United States)

Youssef, Jamal Ben; Brosseau, Christian

2006-12-01

The microwave damping mechanisms in magnetic inhomogeneous systems have displayed a richness of phenomenology that has attracted widespread interest over the years. Motivated by recent experiments, we report an extensive experimental study of the Gilbert damping parameter of multicomponent metal oxides micro- and nanophases. We label the former by M samples, and the latter by N samples. The main thrust of this examination is the magnetization dynamics in systems composed of mixtures of magnetic (γ-Fe2O3) and nonmagnetic (ZnO and epoxy resin) materials fabricated via powder processing. Detailed ferromagnetic resonance (FMR) measurements on N and M samples are described so to determine changes in the microwave absorption over the 6-18GHz frequency range as a function of composition and static magnetic field. The FMR linewidth and the field dependent resonance were measured for the M and N samples, at a given volume fraction of the magnetic phase. The asymmetry in the form and change in the linewidth for the M samples are caused by the orientation distribution of the local anisotropy fields, whereas the results for the N samples suggest that the linewidth is very sensitive to details of the spatial magnetic inhomogeneities. For N samples, the peak-to-peak linewidth increases continuously with the volume content of magnetic material. The influence of the volume fraction of the magnetic phase on the static internal field was also investigated. Furthermore, important insights are gleaned through analysis of the interrelationship between effective permeability and Gilbert damping constant. Different mechanisms have been considered to explain the FMR linewidth: the intrinsic Gilbert damping, the broadening induced by the magnetic inhomogeneities, and the extrinsic magnetic relaxation. We observed that the effective Gilbert damping constant of the series of N samples are found to be substantially smaller in comparison to M samples. This effect is attributed to the surface

Fulltext PDF

Indian Academy of Sciences (India)

Stellera chamaejasme L. is a perennial weed of the family. Thymelaeaceae, has wide geographical range, from Altai of eastern Russia, northern China and Mongolia towards south as far as the dry regions of the western Himalaya, the Tibetan plateau and south-western China (Wang and Gilbert 2007). S. chamaejasme is ...

JPRS Report, Latin America

Science.gov (United States)

1987-07-02

yesterday announced that the Defense and Air Traffic Control System [ Sistema de Defensa e Control de Trafico Aereo] of the southern region, SIDACTA-2, will...Duvalier’s prisons, as Jean Brierre, Marcel Gilbert, Stenio Fethieres, and so many other jail companions at the national penitentiary can attest. I might

Cue Representation and Situational Awareness in Task Analysis

Science.gov (United States)

Carl, Diana R.

2009-01-01

Task analysis in human performance technology is used to determine how human performance can be well supported with training, job aids, environmental changes, and other interventions. Early work by Miller (1953) and Gilbert (1969, 1974) addressed cue processing in task execution and recommended cue descriptions in task analysis. Modern task…

Replacing lactose from calf milk replacers : effects on digestion and post-absorptive metabolism

NARCIS (Netherlands)

Gilbert, M.S.

2015-01-01

Summary PhD thesis Myrthe S. Gilbert

Replacing lactose from calf milk replacers – Effects on digestion and post-absorptive metabolism

Veal calves are fed milk replacer (MR) and solid feed. The largest part of the energy provided to veal calves

The nucleotide sequence of the right-hand terminus of adenovirus type 5 DNA: Implications for the mechanism of DNA replication

NARCIS (Netherlands)

Steenbergh, P.H.; Sussenbach, J.S.

The nucleotide sequence of the right-hand terminal 3% of adenovirus type 5 (Ad5) DNA has been determined, using the chemical degradation technique developed by Maxam and Gilbert (1977). This region of the genome comprises the 1003 basepair long HindIII-I fragment and the first 75 nucleotides of the

A thermodynamically-consistent theory of the ferro/paramagnetic transition

Czech Academy of Sciences Publication Activity Database

Podio-Guidugli, P.; Roubíček, Tomáš; Tomassetti, G.

2010-01-01

Roč. 198, č. 3 (2010), s. 1057-1094 ISSN 0003-9527 Institutional research plan: CEZ:AV0Z20760514 Keywords : phase transitions * thermodynamics of continua * landau-lifshitz/gilbert equation Subject RIV: BJ - Thermodynamics Impact factor: 2.277, year: 2010 http://www.springerlink.com/content/u705l057177m6526/

Bridging the Performance Gap with Ergonomics: A Case Study

Science.gov (United States)

Rethaber, James D.

2011-01-01

Faced with increased incidences of work-related strain and sprain injuries and OSHA-recordable injuries, the organization in this case study details how it resolved these performance-related issues. This case study also demonstrates the effectiveness of Thomas Gilbert's (1978) Behavior Engineering Model as a tool for analyzing, defining, and…

Proceedings of the Second International Congress on Recent Developments in Air- and Structure-Borne Sound and Vibration (2nd) Held in Auburn University, Alabama on 4-6 March 1992. Volume 2

Science.gov (United States)

1992-03-06

METHOD OF SOUND FIELDS IN INDUSTRIAL HALLS .................. 1669 V.L Ledenyov and A.L Antonov, Tambov Institute of Chemical Machine Building, Russia...1163 Njunin, Boris N., 667 Lebedeva, I.V., 1327 Norris, Andrew, 753 Ledenyov , V.I., 1669 Norton, M.P., 621 Lee, Gilbert F., 763 Novikov, 1.1., 725

Journal of Biosciences | Indian Academy of Sciences

Indian Academy of Sciences (India)

Vidyanand Nanjundiah, Stuart A. Newman and Scott F. Gilbert. pp 249-358 Volume 28 Issue 3 April 2003. Viral Evasion of Host Responses. Shahid Jameel. pp 1-134 Volume 28 Issue 1 February 2003. Oxygen/Nitrogen Radicals: Cell Injury and Disease. Val Vallyathan, Rajiv K. Saxena and Vince Castranova. pp 553-627 ...

Radium and uranium

International Nuclear Information System (INIS)

Bothwell, R.

1983-01-01

This is a history of Eldorado Nuclear Ltd. in its early days and during the Second World War. It outlines the activities of the company's president, Gilbert Labine, and it's agent, Boris Pregel, as well as the Canadian government's role during the war years up until the nationalization of the company in 1944

How Well Do Americans Know Geography? "National Geographic" Editor Discusses Meaning for Schools (Interview).

Science.gov (United States)

Koerner, Thomas

1987-01-01

Gilbert Grosvenor, editor of "National Geographic," is interviewed about the importance of geography for Americans. He claims our lack of geographic knowledge impedes our ability to act and compete in the world market as a world power and points out that geographic ignorance extends to people employed at high levels of government. (MD)

A Category Mistake: Why Contemporary Australian Religious Education in Catholic Schools May Be Doomed to Failure

Science.gov (United States)

Hyde, Brendan

2013-01-01

Assuming religious education to be the same as other subject areas of a Catholic school's curriculum by, for example, applying the outcomes based philosophy and language of other subject areas to religious education renders a category mistake. A prominent notion in the work of metaphysical philosopher Gilbert Ryle, a category mistake arises when…

Browse Title Index

African Journals Online (AJOL)

Items 1 - 13 of 13 ... Vol 2, No 1 (2000), Diving beetles (Coleoptera: Dytiscidae and Noteridae) of Egypt, Abstract. Samy Zalat, Rowaida Saleh, Robert Angus, Ahmed Kaschef. Vol 3, No 1 (2001), Flora of St Katherine Protectorate: key to families and genera, Abstract PDF. Wafaa Kamel, Magda Gazar, Samy Zalat, Francis Gilbert.

Great progress in the domesticated silkworm (Bombyx mori L.)

African Journals Online (AJOL)

akpobome

2013-03-13

Mar 13, 2013 ... 2College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China. ... biosynthesis and metabolism (Gilbert et al., 2000; Li et ... feeding Kang-20 to the 4th instar larvae and could spin ... was 800 m, the neatness defect was 95 points, and the ..... Chinese Forest Press, Beijing, China.

Key Informant Models for Measuring Group-Level Variables in Small Groups: Application to Plural Subject Theory

Science.gov (United States)

Algesheimer, René; Bagozzi, Richard P.; Dholakia, Utpal M.

2018-01-01

We offer a new conceptualization and measurement models for constructs at the group-level of analysis in small group research. The conceptualization starts with classical notions of group behavior proposed by Tönnies, Simmel, and Weber and then draws upon plural subject theory by philosophers Gilbert and Tuomela to frame a new perspective…

Commentary on "Childhood Leukemia Survivors and Their Return to School: A Literature Review, Case Study, and Recommendations"

Science.gov (United States)

Long, Lori A.

2011-01-01

This is a commentary on the article, "Childhood Leukemia Survivors and Their Return to School: A Literature Review, Case Study, and Recommendations" by D. Scott Hermann, Jill R. Thurber, Kenneth Miles, and Gloria Gilbert in this issue (2011). This article addresses issues related to the compatibility of the suggested practices with contemporary…

Inquiry Based Learning and Meaning Generation through Modelling on Geometrical Optics in a Constructionist Environment

Science.gov (United States)

Kotsari, Constantina; Smyrnaiou, Zacharoula

2017-01-01

The central roles that modelling plays in the processes of scientific enquiry and that models play as the outcomes of that enquiry are well established (Gilbert & Boulter, 1998). Besides, there are considerable similarities between the processes and outcomes of science and technology (Cinar, 2016). In this study, we discuss how the use of…

Stochastic ferromagnetism analysis and numerics

CERN Document Server

Brzezniak, Zdzislaw; Neklyudov, Mikhail; Prohl, Andreas

2013-01-01

This monograph examines magnetization dynamics at elevated temperatures which can be described by the stochastic Landau-Lifshitz-Gilbert equation (SLLG). Comparative computational studies with the stochastic model are included. Constructive tools such as e.g. finite element methods are used to derive the theoretical results, which are then used for computational studies.

Employee response to harassment by immediate supervisor / Moeti Gilbert Maibi

OpenAIRE

Maibi, Moeti Gilbert

2013-01-01

Workplace harassment is a major problem in all employment relationships. It has negative implications for employee satisfaction, performance and productivity. This in turn leads to poor organisational performance, and often causes formal grievances and labour disputes which are not in the best interest of the employee or the employer. The constitution of the Republic of South Africa and other related acts like Employment Equity Act (EEA) protect employees against any form of un...

Gilbert's De Magnete: An early study of magnetism and electricity

Science.gov (United States)

Malin, Stuart; Barraclough, David

Four hundred years might seem an excessively long time to wait for a book review, but there are reasons why a prompt review would have been difficult. Not only is De Magnete written in Latin, but it is also in the form of a scientific textbook. The language problem was overcome by Paul Fleury Mottelay and Silvanus P. Thompson, who translated the book into English in 1893 and 1900, respectively. The latter was published in connection with a beautiful tercentenary limited edition by the Chiswick Press that retains much of the flavor and appearance of the original. But the notion of a scientific textbook was unfamiliar when De Magnete first appeared in 1600. Certainly, scientific subjects and even geomagnetism had been written about (for example, by Petrus Peregrinus in his Epistola De Magnete, 1269), but as reports of equipment and phenomena rather than as in-depth investigations of a subject with experimental evidence and interpretation.

Topographic shear and the relation of ocular dominance columns to orientation columns in primate and cat visual cortex.

Science.gov (United States)

Wood, Richard J.; Schwartz, Eric L.

1999-03-01

Shear has been known to exist for many years in the topographic structure of the primary visual cortex, but has received little attention in the modeling literature. Although the topographic map of V1 is largely conformal (i.e. zero shear), several groups have observed topographic shear in the region of the V1/V2 border. Furthermore, shear has also been revealed by anisotropy of cortical magnification factor within a single ocular dominance column. In the present paper, we make a functional hypothesis: the major axis of the topographic shear tensor provides cortical neurons with a preferred direction of orientation tuning. We demonstrate that isotropic neuronal summation of a sheared topographic map, in the presence of additional random shear, can provide the major features of cortical functional architecture with the ocular dominance column system acting as the principal source of the shear tensor. The major principal axis of the shear tensor determines the direction and its eigenvalues the relative strength of cortical orientation preference. This hypothesis is then shown to be qualitatively consistent with a variety of experimental results on cat and monkey orientation column properties obtained from optical recording and from other anatomical and physiological techniques. In addition, we show that a recent result of Das and Gilbert (Das, A., & Gilbert, C. D., 1997. Distortions of visuotopic map match orientation singularities in primary visual cortex. Nature, 387, 594-598) is consistent with an infinite set of parameterized solutions for the cortical map. We exploit this freedom to choose a particular instance of the Das-Gilbert solution set which is consistent with the full range of local spatial structure in V1. These results suggest that further relationships between ocular dominance columns, orientation columns, and local topography may be revealed by experimental testing.

Taking Your Talents to Business Communications: Analyzing Effective Communication through LeBron James's Career Moves

Science.gov (United States)

Manisaligil, Alperen; Bilimoria, Diana

2016-01-01

We describe an in-class activity that helps students improve their skills in media selection and use to reinforce effective communication. The activity builds on media richness and channel expansion theories through an examination of the media selection and use of NBA athlete LeBron James and Cleveland Cavaliers majority owner Dan Gilbert during…

Quality-assurance approach for the Elmo Bumpy Torus Proof-of-Principal experiment

International Nuclear Information System (INIS)

Sticksel, F.M.

1981-01-01

Components, subsystems and systems will be subjected to inspection and test as necessary to ensure compliance to applicable specifications, Acceptance Test Procedures and/or customer requirements. Quality Assurance will inspect each component, subsystem and system for selected mechanical and electrical defects. In addition, Quality Assurance will either perform, or verify performance of, and analyze, or verify analysis of, all required field and laboratory tests. If hardware is modified, repaired or replaced after final testing, necessary re-inspection and retest must be performed. Insofar as possible the component, subsystem or system will be released as acceptable upon completion of these activities. When nonconformances are detected during the course of site surveillance activities, MDAC or Gilbert/Commonwealth will initiate a Nonconformance Record for review by MDAC Quality Assurance and Project Engineering personnel. These nonconformances will be identified and dispositioned per MDAC Standard Practices with the advice and concurrence of Gilbert/Commonwealth personnel, if deemed appropriate. MDAC Quality Assurance personnel will witness the pre-operational testing and review the test data

Československo 1945–1948: Případ hybridního režimu?

Directory of Open Access Journals (Sweden)

Jaroslav Bílek

2014-08-01

Full Text Available This article presents an interpretative case study utilizing the concept of hybrid regimes as presented by Leah Gilbert and Payam Mohseni to analyse the political regime of Czechoslovakia between the years 1945–1948. Our aim is to demonstrate that rather than a mere transitional phase on the road from democracy to authoritarianism or an episode of final tremors of the pre-war (democratic regime, the 1945–1945 regime represents a full-fledged hybrid, rooted in the specific conditions of the post-war period. One of the major problems in contemporary discussions about hybrid regimes is the blurred and somewhat unstable boundary between democratic and authoritarian regimes, especially when viewed only as a function of the electoral processes and mechanics. Gilbert and Mohseni’s classification of hybrid regimes attempts to overcome this problem by including two additional analytic dimensions, allowing to point at the dynamic development of the political regime in post-war Czechoslovakia and its rather lively movement on the scale between authoritarianism and democracy.

Angle-dependent spin-wave resonance spectroscopy of (Ga,Mn)As films

Science.gov (United States)

Dreher, L.; Bihler, C.; Peiner, E.; Waag, A.; Schoch, W.; Limmer, W.; Goennenwein, S. T. B.; Brandt, M. S.

2013-06-01

A modeling approach for standing spin-wave resonances based on a finite-difference formulation of the Landau-Lifshitz-Gilbert equation is presented. In contrast to a previous study [C. Bihler , Phys. Rev. BPRBMDO1098-012110.1103/PhysRevB.79.045205 79, 045205 (2009)], this formalism accounts for elliptical magnetization precession and magnetic properties arbitrarily varying across the layer thickness, including the magnetic anisotropy parameters, the exchange stiffness, the Gilbert damping, and the saturation magnetization. To demonstrate the usefulness of our modeling approach, we experimentally study a set of (Ga,Mn)As samples grown by low-temperature molecular-beam epitaxy by means of angle-dependent standing spin-wave resonance spectroscopy and electrochemical capacitance-voltage measurements. By applying our modeling approach, the angle dependence of the spin-wave resonance data can be reproduced in a simulation with one set of simulation parameters for all external field orientations. We find that the approximately linear gradient in the out-of-plane magnetic anisotropy is related to a linear gradient in the hole concentrations of the samples.

Sequential hepato-biliary scintigraphy of the patients with constitutional jaundices and ICG excretory defect disease with sup(99m)Tc-HIDA and sup(99m)Tc-PI

International Nuclear Information System (INIS)

Ueda, Hideo; Asahara, Akira; Hishinuma, Sanpei; Toogin, Masayuki; Takagi, Masao

1979-01-01

The hepato-biliary scintigraphy with sup(99m)Tc-HIDA and sup(99m)Tc-PI and the measurement of hepatic clearance have been studied on constitutional hyperbilirubinemia and ICG excretory defect disease. The results obtained are as follows: 1) In Dubin-Johnson's syndrome cases, the hepatic uptake of sup(99m)Tc-HIDA was faster, but the excretion was extremely slower than in normal cases. 2) Hepatic uptake and excretion of sup(99m)Tc-PI were both almost normal in Dubin-Johnson's syndrome. 3) In Rotor's disease, hepatic uptake of sup(99m)Tc-HIDA was very poor, showing almost no hepatic image. 4) In Gilbert's disease and ICG excretory defect disease, hepatic uptake and excretion of sup(99m)Tc-HIDA were both within normal limit. From these results it can be presumed that Dubin-Johnson's syndrome and Rotor's disease differ in morbid condition. Dubin-Johnson's syndrome, Rotor's disease and Gilbert's disease show the different patterns between hepatic uptake and excretion on sup(99m)Tc-HIDA hepatoscintigraphy and the patterns contribute to the differential diagnosis of constitutional jaundice. (author)

2nd ISAAC Congress

CERN Document Server

Gilbert, Robert; Kajiwara, Joji

2000-01-01

This book is the Proceedings of the Second ISAAC Congress. ISAAC is the acronym of the International Society for Analysis, its Applications and Computation. The president of ISAAC is Professor Robert P. Gilbert, the second named editor of this book, e-mail: gilbert@math.udel.edu. The Congress is world-wide valued so highly that an application for a grant has been selected and this project has been executed with Grant No. 11-56 from *the Commemorative Association for the Japan World Exposition (1970). The finance of the publication of this book is exclusively the said Grant No. 11-56 from *. Thus, a pair of each one copy of two volumes of this book will be sent to all contributors, who registered at the Second ISAAC Congress in Fukuoka, free of charge by the Kluwer Academic Publishers. Analysis is understood here in the broad sense of the word, includ­ ing differential equations, integral equations, functional analysis, and function theory. It is the purpose of ISAAC to promote analysis, its applications, and...

Computational micromagnetics: prediction of time dependent and thermal properties

International Nuclear Information System (INIS)

Schrefl, T.; Scholz, W.; Suess, Dieter; Fidler, J.

2001-01-01

Finite element modeling treats magnetization processes on a length scale of several nanometers and thus gives a quantitative correlation between the microstructure and the magnetic properties of ferromagnetic materials. This work presents a novel finite element/boundary element micro-magnetics solver that combines a wavelet-based matrix compression technique for magnetostatic field calculations with a BDF/GMRES method for the time integration of the Gilbert equation of motion. The simulations show that metastable energy minima and nonuniform magnetic states within the grains are important factors in the reversal dynamics at finite temperature. The numerical solution of the Gilbert equation shows how reversed domains nucleate and expand. The switching time of submicron magnetic elements depends on the shape of the elements. Elements with slanted ends decrease the overall reversal time, as a transverse demagnetizing field suppresses oscillations of the magnetization. Thermal activated processes can be included adding a random thermal field to the effective magnetic field. Thermally assisted reversal was studied for CoCrPtTa thin-film media

Annual Report on Electronics Research at The University of Texas at Austin.

Science.gov (United States)

1982-05-15

erence laser is a Mark-Tech Model 5800 Lamb -dip stabilized He-Ne laser. Not yet implemented is a scheme for providing tunability of the reference...NJ 0701 ATTN . DRSEL-FU-M (Mr. John Walker) AT"M, STEWS -ID0-D (DR. Al L. Gilbert) Fort Monm,th. N.J 07703 White lendsSMissile Range. Ism $0002 Director

Resonance – Journal of Science Education | News

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 11; Issue 8. Issue front cover thumbnail Issue back cover thumbnail. Volume 11, Issue 8. August 2006, pages 1-106. pp 1-2 Editorial. Editorial · S Mahadevan · More Details Fulltext PDF. pp 3-5 Article-in-a-Box. Sir Gilbert Thomas Walker · J Srinivasan M ...

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African Journals Online (AJOL)

egyptian hak

Egypt, a biodiversity hotspot and so is likely to provide habitat for arid-adapted odonate fauna. The IUCN have declared the area as one of the most important centres for plant diversity in the. Middle East (Grainger & Gilbert, 2008). The area is also important for insects; two-thirds of the butterfly species found in Egypt have ...

Command and Control: US Army Staffs and the Operations Process

Science.gov (United States)

2016-05-26

Architecture , 2nd ed. (New York: Elsevier, 2006). 2...Mainly technical experts in logistics and engineering, these proto-staff officers enabled both the Egyptian and Assyrian empires to conquer many of...Platform for Designing Business Architecture . New York: Elsevier, 2006, 2d edition. Gilbert, Felix. “Machiavelli: The Renaissance of the Art of War.” In

The JEDBURGHS: Combat Operations Conducted in the Finistere Region of Brittany, France from July-September 1944

Science.gov (United States)

1990-06-01

LrpAvomworth, .3. ABSTRACT (Maximum 200wods) An h1itot-icnl "arrltive of Jndhurr-h Team~s Giles, Gilbert, ’Ronald, Horace, Hilar -rl Francis. T~i- T-r1)t1...demobilization paper, textile ration card, certificate of domicile, work permit and driving license. These all seemed authentic, as they had been produced

Developmental regulation of silk protein P25 in the silkworm ...

Indian Academy of Sciences (India)

tribpo

anti-P25 sera were raised in rabbit and mice. The relative ... of B. mori. Couble et al (1983) identified a new mRNA species in the posterior ... quantitative changes in P25 protein level during development in B. mori. 2 . ..... physiology biochemistry and pharmacology (eds) G A Kerkut and L I Gilbert (New York: Pergamon.

Effect of Fishmeal Supplementation on Egg Production of Rhode ...

African Journals Online (AJOL)

fed on CD. Feed intake and egg production were significantly (P < 0.001) improved by jishmeal ... cost per egg was lower for layers fed on FMD compared with those fed on CD. Keywords: ... provide a good balance of essential amino acids ..... ovary. Gilbert (1972) divides the life of a follicle ..... work of Jensen et al. (1974).

Audit of Visual Outcome of Cataract Surgeries in a Private Eye ...

African Journals Online (AJOL)

tulyasys

Ophthalmologists can only ensure quality control and be beer armed ... [2] This will help to achieve the targets of the VISION 2020 ... 85% of operated eyes should have good outcome (≥6/18 vision) and less .... may not be instilling their eye drops according to ... Limburg H, Foster A, Gilbert C, Johnson GJ, Kyndt M. Routine.

From Chemical Analysis to Analyzing Chemical Education: An Interview with Joseph J. Lagowski

Science.gov (United States)

Cardellini, Liberato

2010-01-01

This interview provides glimpses of Joseph J. Lagowski and his life from the time he played with a Gilbert chemistry set, to his tenure at The University of Texas at Austin. His initial interest in chemistry was further nurtured and developed thanks to an excellent high school teacher. In the interview, Lagowski discusses his research in…

Inverse problems of geophysics

International Nuclear Information System (INIS)

Yanovskaya, T.B.

2003-07-01

This report gives an overview and the mathematical formulation of geophysical inverse problems. General principles of statistical estimation are explained. The maximum likelihood and least square fit methods, the Backus-Gilbert method and general approaches for solving inverse problems are discussed. General formulations of linearized inverse problems, singular value decomposition and properties of pseudo-inverse solutions are given

The Design and Validation of an Instrument To Identify Preservice Elementary Teachers' Intuitive and School Knowledge of the Concepts of Surface Area/Volume and States of Matter.

Science.gov (United States)

Rice, Diana C.; And Others

In order to take into account in a more productive, effective manner children's prior science knowledge in the development of science curricula and in the teaching of science, it is important "to know how to explore it, to know about its nature, and to consider the various ways it may, or may not be modified" (Gilbert, Osborne, and Fensham, 1982).…

Exchange and spin-orbit induced phenomena in diluted (Ga, Mn) As from first principles

Czech Academy of Sciences Publication Activity Database

Kudrnovský, Josef; Drchal, Václav; Turek, Ilja

2016-01-01

Roč. 94, č. 5 (2016), 1-8, č. článku 054428. ISSN 2469-9950 R&D Projects: GA ČR GA15-13436S Institutional support: RVO:68378271 ; RVO:68081723 Keywords : GaMnAs * Curie temperature * spin-stiffness * anisotropic magnetoresistance * anomalous Hall effect * Gilbert damping Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 3.836, year: 2016

La 'mutilation anthropologique' et le réalignement de la littérature ...

African Journals Online (AJOL)

28 mars 2016 ... pologique et blessure existentielle: traversées intergénéra-tionnelles de la littérature camerounaise”. Les sessions qui réunissaient entre autres Frieda Ekoto, Gilbert Doho,. Juliana (Makuchi) Nfah-Abbenyi, Célestin Monga, Ambroise Kom et Nathalie Etoke reflétaient ce que je détectais comme le mal-être ...

On the ionic equilibrium between complexes in molten fluoroaluminates

International Nuclear Information System (INIS)

Akdeniz, Z.; Tankeshwar, K.; Tosi, M.P.

1991-02-01

We discuss theoretically (i) the effect of the alkali cation species on the ionic equilibrium between (AlF 6 ) 3- and (AlF 4 ) - complexes in molten alkali fluoroaluminates, and (ii) the possible presence of (AlF 5 ) 2 - complexes in molten cryolite, in relation to very recent Raman scattering experiments by Gilbert and Materne. (author). 7 refs, 2 tabs

The Relationship Between Acoustic Target Strength and Body Length for Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus)

Science.gov (United States)

2010-10-01

sturgeon feeding portray them as opportunistic benthivores, feeding primar- ily on mollusks, polychaete worms, amphipods, isopods, shrimp and small bottom...dwelling fishes and insect larvae (Gilbert 1989; Smith 1985). The Atlantic sturgeon is anadromous, entering freshwater rivers to spawn at water...bottom (small rubble, gravel, hard clay, and limestone) is required for successful egg attachment and incubation, while also protecting larvae from

Air-to-Air and Air-to-Ground Attack Strategies in Trained Birds of Prey

Science.gov (United States)

2014-09-30

running   after   prey   (Gilbert,   1997),   and   fish   swimming   after   sinking   food   ( Lanchester   &   Mark...J.  Exp.  Biol.  217,  225-­‐234.   Lanchester  B.  S.,  and  Mark  R.  F.  (1975).  Pursuit  and  prediction  in

Composición de especies y diversidad de peces en tres cuerpos de agua en la cuenca alta del río Itaya

Directory of Open Access Journals (Sweden)

Javier del Águila Chávez

2013-06-01

Full Text Available En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación rápida en los meses de junio y julio del 2012. Se colectaron datos y muestras de peces en Lamas cocha (LC, cocha Anguilla (CA y Tipishca Luz de Oriente (TLO. Los peces fueron colectados utilizando una batería de redes de diferentes medidas 1.5, 2, 2.5, 3, 3.5 y 4 pulgadas de de abertura de malla. Se reportan 17 familias taxonómicas, de las cuales 9 familias pertenecen al orden Characiformes (53%, 3 familias pertenecen al orden de los Siluriformes (17%, 2 familias pertenecen al orden de los Gymnotiformes (12% y al orden Perciformes (12% y una familia pertenece al orden Beloniformes (6%. La predominancia de las familias taxonómicas en los tres ambientes fueron Characidae, Curimatidae, Acestrorhynchidae (Characiformes y Cichlidae (Perciformes. Sin embargo, la ocurrencia de exclusividad de una determinada familia fue observada en los tres cuerpos de aguas; tenemos de esta forma la familia Hemiodontidae solo tienen ocurrencia en Lamas cocha, la ocurrencia de la familia Prochilodontidae (Characiformes y Callichthyidae (Siluriformes en Cocha Anguillal y finalmente la ocurrencia de las familias Pimelodidae (Siluriformes, Sciaenidae (Perciformes y Belonidae (Beloniformes en la Tipishca Luz de Oriente.

Composición de especies y diversidad de peces en tres cuerpos de agua en la cuenca alta del río Itaya

Directory of Open Access Journals (Sweden)

Javier del Águila Chávez

2013-06-01

Full Text Available En el presente trabajo se describe sobre la diversidad en tres cuerpos de agua de la cuenca alta del río Itaya, concesión de conservación de la universidad científica del Perú, en una evaluación  rápida en los meses de junio y julio del 2012. Se colectaron datos y muestras de peces en Lamas cocha (LC, cocha Anguilla (CA y Tipishca Luz de Oriente (TLO. Los peces fueron colectados utilizando una batería de redes de diferentes medidas 1.5, 2, 2.5, 3, 3.5 y 4 pulgadas de de abertura de malla. Se reportan 17 familias taxonómicas, de las cuales 9 familias pertenecen al orden Characiformes (53%, 3 familias pertenecen al orden de los Siluriformes (17%, 2 familias pertenecen al orden de los Gymnotiformes (12%  y al orden Perciformes (12% y una familia pertenece al orden Beloniformes (6%. La predominancia de las familias taxonómicas en los tres ambientes fueron Characidae, Curimatidae, Acestrorhynchidae (Characiformes y Cichlidae (Perciformes. Sin embargo, la ocurrencia de exclusividad de una determinada familia fue observada en los tres cuerpos de aguas; tenemos de esta forma la familia Hemiodontidae solo tienen ocurrencia en Lamas cocha, la ocurrencia de la familia Prochilodontidae (Characiformes y Callichthyidae (Siluriformes en Cocha Anguillal y finalmente la ocurrencia de las familias Pimelodidae (Siluriformes, Sciaenidae (Perciformes y Belonidae (Beloniformes en la Tipishca Luz de Oriente.

Erratum: Spin dynamics in ferromagnets: Gilbert damping and two-magnon scattering

Czech Academy of Sciences Publication Activity Database

Zakeri, Kh.; Lindner, J.; Barsukov, I.; Meckenstock, R.; Farle, M.; von Horsten, U.; Wende, H.; Keune, W.; Rocker, J.; Kalarickal, S.S.; Lenz, K.; Kuch, W.; Baberschke, K.; Frait, Zdeněk

2009-01-01

Roč. 80, č. 5 (2009), 059901/1-059901/3 ISSN 1098-0121 Institutional research plan: CEZ:AV0Z10100520 Keywords : ferromagnetic resonance * Heusler alloys Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 3.475, year: 2009

75 FR 65663 - Gilbert Eugene Johnson, M.D.; Revocation of Registration

Science.gov (United States)

2010-10-26

... doctor-patient relationship and a legitimate medical need for the prescription) and directed the employee... practitioner must establish a bona fide doctor-patient relationship in order to act `in the usual course of... patient relationship''; (2) Respondent ``engaged in indiscriminate or excessive prescribing, dispensing or...

Imaginary Documentary: reflecting upon contemporary documental photography Documentário Imaginário: reflexões sobre a fotografia documental contemporânea

Directory of Open Access Journals (Sweden)

Kátia Hallak Lombardi

2008-01-01

Full Text Available This article pursues the idea of an Imaginary Documentary – a possible new inflexion on the practices of contemporary documental photography. The text establishes its theoretical foundations through a forthcoming approach of the discussions about documental photography to the concept of imaginary, by Gilbert Durand, and the notion of Imaginary Museum, by André Malraux. Photographers that are part of documental photography history are the elected objects in which we shall confront the potentialities of the Imaginary Documentary. Este artigo tem como propósito buscar a estruturação da idéia de Documentário Imaginário – uma possível inflexão na prática da fotografia documental contemporânea. O texto assenta suas bases teóricas por meio da aproximação de reflexões sobre a fotografia documental ao conceito de imaginário em Gilbert Durand e à noção de Museu Imaginário de André Malraux. Fotógrafos que fazem parte da história da fotografia documental são os objetos eleitos para aferir as potencialidades do Documentário Imaginário.

The Younger Dryas phase of Great Salt Lake, Utah, USA

Science.gov (United States)

Oviatt, Charles G.; Miller, D.M.; McGeehin, J.P.; Zachary, C.; Mahan, S.

2005-01-01

Field investigations at the Public Shooting Grounds (a wildlife-management area on the northeastern shore of Great Salt Lake) and radiocarbon dating show that the Great Salt Lake rose to the Gilbert shoreline sometime between 12.9 and 11.2 cal ka. We interpret a ripple-laminated sand unit exposed at the Public Shooting Grounds, and dated to this time interval, as the nearshore sediments of Great Salt Lake deposited during the formation of the Gilbert shoreline. The ripple-laminated sand is overlain by channel-fill deposits that overlap in age (11.9-11.2 cal ka) with the sand, and by wetland deposits (11.1 to 10.5 cal ka). Consistent accelerator mass spectrometry radiocarbon ages were obtained from samples of plant fragments, including those of emergent aquatic plants, but mollusk shells from spring and marsh deposits yielded anomalously old ages, probably because of a variable radiocarbon reservoir effect. The Bonneville basin was effectively wet during at least part of the Younger Dryas global-cooling interval, however, conflicting results from some Great Basin locations and proxy records indicate that the regional effects of Younger Dryas cooling are still not well understood. ?? 2005 Elsevier B.V. All rights reserved.

Shark tooth weapons from the 19th Century reflect shifting baselines in Central Pacific predator assemblies.

Science.gov (United States)

Drew, Joshua; Philipp, Christopher; Westneat, Mark W

2013-01-01

The reefs surrounding the Gilbert Islands (Republic of Kiribati, Central Pacific), like many throughout the world, have undergone a period of rapid and intensive environmental perturbation over the past 100 years. A byproduct of this perturbation has been a reduction of the number of shark species present in their waters, even though sharks play an important in the economy and culture of the Gilbertese. Here we examine how shark communities changed over time periods that predate the written record in order to understand the magnitude of ecosystem changes in the Central Pacific. Using a novel data source, the shark tooth weapons of the Gilbertese Islanders housed in natural history museums, we show that two species of shark, the Spot-tail (Carcharhinus sorrah) and the Dusky (C. obscurus), were present in the islands during the last half of the 19(th) century but not reported in any historical literature or contemporary ichthyological surveys of the region. Given the importance of these species to the ecology of the Gilbert Island reefs and to the culture of the Gilbertese people, documenting these shifts in baseline fauna represents an important step toward restoring the vivid splendor of both ecological and cultural diversity.

Agents of Change: Interpreters as Witnesses of Transition

Directory of Open Access Journals (Sweden)

Kristina Mullamaa

2014-08-01

Full Text Available In this article we would like to share the preliminary results of our on-going research on the memories of interpreters. From 2011-2012 we have carried out in-depth interviews with representatives of two different samples: experienced dialogue interpreters a in Estonia and  b in Sweden, most of whom have worked from the 1960s till today. This article sums up the preliminary results on the sample from Estonia. The focus is on the development of the interpreter´s role as reflecting the changes in society, cultural and social practices. As for the theoretical background, we view the processes within the framework of Transition Studies (cf. Lauristin, Vihalemm 2010;  Kennedy 2002. The methodological framework is ethnographic research. More specifically:  we combine narrative studies and memory research ( Kõresaar, Kirss 2004; Riessman 1993, Middleton, Brown 2005, Gilbert 2008; method:  semi-structured interviews (cf. Nunan 1992, Van Maanen 1983, Gilbert 2008. The analysis of our on-going research also enables us to test and share with our readers the pros and cons of the chosen methodology and methods.

progressive problemshifts between different research programs in science education: A lakatosian perspective

Science.gov (United States)

Niaz, Mansoor

Given the importance of epistemology and philosophy of science, the Lakatos (1970) methodology is particularly suited to evaluate competing research programs in science education. This article has two objectives: (a) to evaluate critically the interpretations of Gilbert and Swift (1985) and Rowell and Dawson (1989), and (b) to postulate a progressive problemshift between Piaget's epistemic subject and Pascual-Leone's metasubject. Regarding the Gilbert and Swift interpretation, it is concluded that the alternative conceptions movement at its present stage of development cannot explain the previous success of its rival (Piagetian school) nor supersede it by a further display of heuristic power as required by Lakatos. If we accept the Rowell and Dawson thesis it would amount to the postulation of Piagetian and integrated (Piagetian and schema) theories as rival research programs. It appears that the Rowell and Dawson approach would enrich Piagetian theory with descriptive content rather than explanatory constructs, and thus would not lead to a progressive problemshift. It is concluded that Pascual-Leone's theory extends Piaget's negative heuristic by introducing antecedent variables, and at the same time enriches the positive heuristic by introducing metasubjective task analysis, which leads to a progressive problemshift.

Uudiseid maailmast / Nele-Eva Steinfeld

Index Scriptorium Estoniae

Steinfeld, Nele-Eva

2012-01-01

Lühisõnumeid muusikamaailmast: Suri maailma vanim helilooja Elliott Carter. Lahkus Hans Werner Henze. Uusi teoseid Beethovenilt. Joseph Joachimi viiuldajate konkursi võitjad selgunud. Pianist Pavel Kolesnikov võitis Esther Honensi nimelise konkursi. Lõuna-Korea ringhäälingu sümfooniaorkestri uueks peadirigendiks saab Mihhail Pletnjov. Tokyo sümfooniaorkestri uueks muusikajuhis sai Jonathan Nott. Pikendatakse Alan Gilbert'i lepingut. Robert Schumanni auhind

U.S. Military Civic Action in Honduras, 1982-1985: Tactical Success, Strategic Uncertainty. CLIC Papers

Science.gov (United States)

1988-09-01

four doctors treated about 600 patients, mostly for upper respiratory infections, malnutrition, skin infections and anemia . One villager, Jose Nolasco...gastro-intestinal problems, upper respiratory and skin infection, anemia , and malnutrition. Captain Gilbert Handal, a US Army doctor and a native of Chile...created by government opponents, but have been exploited by them. As former President of Peru , Fernando Belaunde-Terry argued "The enemies of democracy

Adília Lopes and Sylvia Plath: a body in difference

Directory of Open Access Journals (Sweden)

Ana Beatriz Affonso Penna

2017-06-01

Full Text Available This article intends to discuss the works of the poets Adília Lopes and Sylvia Plath based upon the relations between body and writing, with focus on gender issues. For this discussion, Henri Bergson’s and Gilbert Simondon’s reflections on the notion of image will be employed.--- DOI: http://dx.doi.org/10.22409/abriluff.2017n18a391

Applications of Human Performance Models to System Design: Defense Research Series. Volume 2

Science.gov (United States)

1989-01-01

Animation of Human Figures ... ........... .. 375 Norman I. Badler SAFEWORK: Software to Analyse and Design Workplaces ... .......... .389 Robert Gilbert...workload estimation is generally associated with Senders’ research on monitoring tasks (e.g., Senders, Elkind, Grignetti, & Smallwood , 1966; Senders...controller’s workload, IEEE Transactions on Systems, Man, and Cybernetics, SMC-8(6) :492-493. Senders, J. W., Elkind, J. I., Grignetti, M. C., and Smallwood , R

Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann (Pisces, Curimatidae in Juramento reservoir, Minas Gerais, Brazil Biologia reprodutiva e alimentação de Curimatella lepidura (Eigenmann & Eigenmann (Pisces, Curimatidae no reservatório de Juramento, Minas Gerais, Brasil

Directory of Open Access Journals (Sweden)

Érika R. de Alvarenga

2006-06-01

Full Text Available Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann, 1889 were studied in Juramento reservoir, São Francisco River basin, Southeastern Brazil. Histological analyses and gonadosomatic indexes revealed females and males in reproductive activity from October to March and total spawning occurring from January to March coupled with the peak of spermiating males. In the dry season, the fishes accumulated energetic reserves for reproduction during a short rainy season. The species presented sexual dimorphism, being females larger than males and sexual maturation occurring close to 7.7 cm standard length for females and 7.1 cm for males. C. lepidura presented iliophagous feeding habit, ingesting mainly sediment/detritus and a small amount of acari, algae, Tricoptera insects and Ostracoda crustaceans, suggesting a probable role in nutrient recycling of the Juramento reservoir.A biologia reprodutiva e alimentação de Curimatella lepidura (Eigenmann & Eigenmann, 1889 foram estudadas no reservatório de Juramento, Bacia do rio São Francisco, Sudeste do Brasil. Análises histológicas e índices gonadosomáticos mostraram fêmeas e machos em atividade reprodutiva de outubro a março e desova total ocorrendo de janeiro a março coincidindo com pico de espermiação. Na estação seca, os peixes acumularam reservas energéticas para a reprodução durante curta estação chuvosa. A espécie apresentou dimorfismo sexual, sendo as fêmeas maiores do que os machos e, a maturação gonadal ocorreu em torno de 7,7 cm de comprimento padrão para as fêmeas e 7,1 cm para os machos. C. lepidura apresentou hábito alimentar iliófago, ingerindo predominantemente sedimento/detrito e, em menor proporção, ácaros, algas, insetos Tricoptera e crustáceos Ostracodas sugerindo provável papel na reciclagem de nutrientes do reservatório de Juramento.

Position-specific isotope analysis by on-line pyrolysis coupled to IRMS

Science.gov (United States)

Gilbert, A.; Suda, K.; Yamada, K.; Ueno, Y.; Yoshida, N.

2016-12-01

Position-specific isotopic analyses (PSIA) provide unique information regarding the sources, sinks and processes related to natural molecules. For instance, PSIA of short-chain hydrocarbons could lead to temperature of formation and maturity of natural gas reservoirs [1][2]. In the last decade, quantitative Nuclear Magnetic Resonance (NMR) specrometry has been used for PSIA of organic molecules such as glucose or n-alkanes [3][4]. However, due to its low sensitivity, application to low amount geochemical samples remains challenging. In 1997, Corso & Brenna proposed to adapt a pyrolysis furnace to an isotope ratio mass spectrometer, making it possible the thermal degradation of the target molecule and the subsequent analysis of the d13C values of the fragments formed [5]. Starting from fatty acid methyl esters they demonstrated the absence of rearrangement during pyrolytic degradation and could determine the d13C value of carboxyl C-atom position. We adapted the system for the full characterization of position-specific isotope composition of small molecules (ethanol, acetic acid, alanine, propane). Nanomole amount of sample can be analyzed with a precision on intramolecular d13C values of 1‰ or lower [2]. We recently analyzed abiotic and thermogenic propane samples both from the field and from lab simulations. PSIA of propane shows systematic differences of position-specific isotope composition between thermogenic and abiotic samples. While the former show 13C-depletion on the terminal C-atom position - consistent with thermal cracking kinetic models [6] - abiotic samples show little or no preference for terminal or central 13C-isotopomer. These results emphasize the potential of PSIA to trace the the processes associated with organic molecules production. [1] Piasecki et al. 2016 GCA 188, 58 [2] Gilbert et al. 2016 GCA 177, 205 [3] Gilbert et al. 2012 PNAS, 109, 18204 [4] Gilbert et al. 2013 Org. Geochem, 62, 56 [5] Corso & Brenna 1997 PNAS, 94, 1049 [6] Tang et

Fisheries and fishing effort at the Indigenous Reserves Ashaninka/Kaxinawá, river Breu, Brazil/Peru As pescarias e esforço de pesca na Reserva Indígena Ashaninka/Kaxinawá, rio Breu, Brasil/Peru

Directory of Open Access Journals (Sweden)

Benedito Domingues do Amaral

2005-06-01

Full Text Available This article aimed to describe the subsistence fisheries of traditional populations of three ethnic groups, one Ashaninka and two Kaxinawá, lying on the banks of the River Breu. Initially, monitors were trained to fill logbooks with data from fisheries of the villages during an annual cycle (august/1995 august/1996. Based on these data, it was realized an inventory of the most common fish species caught as well as one about the fishing environment. The following results were obtained: i Indians prefer to use pools, locally known as "poços", for fishing; ii the most common caught species are the "mandis" (35%, Pimelodidae, armored catfishes (Loricariidae, specially Hypostomus sp. (25%, the "curimatá" (9%, Prochilodus sp. and the "saburus" (8%, Curimatidae, among others; iii the fishing gears that lead to a high rate of fishing are the native "tingui", nets and bow and arrows; iv fisheries are more intensive during summer; v the fishing effort and their associated factors statistically significant in predicting the catches in the Indian Reserve were f1 = number of fishermen, f2 = (number of fishermen*total time devoted to fishing, f3 = [(number of fishermen*(total time devoted to fishing-(the time displacement] and the factor villages and fishing gears; vi although almost all the fisheries are done by walking to the fishing places, catches increase when paddle boats are used; and vii the most active fishermen belong to Kaxinawá tribe.Este artigo tem o objetivo de descrever a pesca de subsistência das populações tradicionais de uma aldeia Ashaninka e duas Kaxinawá vivendo à beira do rio Breu. Inicialmente, foram treinados monitores para preencher fichas de coleta de dados das pescarias nas aldeias durante um ciclo anual (agosto/1995 agosto/1996. A partir desses dados realizaram-se os inventários das espécies de peixes capturadas e dos ambientes pesqueiros. A análise dos dados foi efetuada por meio de estatística descritiva e explorat

Transmateriality: Toward an Energetics of Signal in Contemporary Mediatic Assemblages

Directory of Open Access Journals (Sweden)

Anna Munster

2014-03-01

Full Text Available This article focuses on signal as an aspect of modern technicity that precedes—or supersedes—codification. Examining DIY drone videos found on YouTube and the video art of Nam June Paik, among other sources, the article explores how each tests the flow of signal and signal processing as forms of transmateriality and transduction. the author draws particularly on the work of Gilbert Simondon and Adrian Mackenzie.

Mediation Outcomes from the Second Sudan Civil War: An Analysis of Abuja and Igad Peace Initiatives

Science.gov (United States)

2013-12-01

Grasping the Nettle : Analyzing Cases of Intractable Conflict, eds. Chester A. Crocker, Fen Osler Hampson, and Pamela Aall (Washington, DC: United...Issues: The Root Causes of Sudan’s Civil Wars (Bloomington, IN: Indiana University, 2003): xi; Ruth Iyob and Gilbert M. Khadiagala, Sudan: The Elusive...however, considered the possibility of a unified identity in the New Sudan.148 Countering the GoS’s assertions that Sudan had historical roots in

Tactical Web Services: Using XML and Java Web Services to Conduct Real-Time Net-Centric Sonar Visualization

Science.gov (United States)

2004-09-01

Rosetti USN U.S. Navy Chesterton, IN 6. Erik Chaum NUWC Newport, RI 7. David Bellino NPRI Newport, RI 8. Dick Nadolink NUWC Newport, RI...found at (http://www.parallelgraphics.com/products/cortona). G. JFREECHART JFreeChart is an open source Java API created by David Gilbert and...www.xj3d.org/. Accessed 3 September 2004. Hunter, David , Kurt Cagle, and Chris Dix, eds. Beginning XML, Second Edition. Indianapolis, IN

Friction in the U.S. Army During Irregular Warfare

Science.gov (United States)

2014-05-22

PowerPlus Books, 2002), 86–97. 29Niccolo Machiavelli and Harvey C Mansfield, The Prince (Chicago, IL: University of Chicago Press, 1985), 21–25...Gilbert, eds., Makers of Modern Strategy: From Machiavelli to the Nuclear Age (Princeton, N.J: Princeton University Press, 1986), 155. 5... Machiavelli , influenced by Greek and Roman writings, provided the basic underpinning for acquisition of land and wealth.29 Of particular importance was the

Nab-paclitaxel plus gemcitabine in the treatment of metastatic pancreatic cancer: utility and experience from the clinic

OpenAIRE

Dragovich, Tomislav; Kundranda,Madappa

2016-01-01

Madappa N Kundranda, Tomislav Dragovich Division of Hematology and Oncology, Banner MD Anderson Cancer Center, Gilbert, AZ, USA Abstract: Pancreatic ductal adenocarcinoma remains one of the deadliest epithelial cancers, primarily due to late diagnosis, early metastasis and the lack of effective treatments. With recent advances in systemic therapies, the median survival for metastatic disease has essentially doubled to approximately 1 year, and a significant number of patients are receiving m...

Nigeria’s Rising Hegemony is Essential to Peace and Stability in West-Africa

Science.gov (United States)

2002-04-18

agricultural sector was particularly on wise for the Nigerian government considering the teeming population that can be gainfully employed by the sector...United Nations Institute for Disarmament Research Geneva Switzerland . UNIDR/2000/3. P.7 3. Ibid p 4 4 M.A. Vogt The Liberian Crises and... Switzerland p.13 3 Ibid p.15. 4 Gilbert M. Khadiagala, et al African Foreign Policies. Powers and perspective: A . . Foreign policy

JPRS Report, Science & Technology Europe

Science.gov (United States)

1988-09-08

France’s Research Tax Credit in 1987 [Gilbert Pointout; INDUSTRIES ET TECHNIQUES, 20 Apr 88] 38 PASOK Charged with Downgrading of DIMOKRITOS Research...Precision equipment Source: Ministry of Research and Higher Education 9294 PASOK Charged with Downgrading of DIMOKRITOS Research Institute...35210122 Athens PONDIKI in Greek 23 Jun 88 p 19 [Text] Since the Panhellenic Socialist Movement Party ( PASOK ) came to power, for some strange reason it

249-IJBCS-Article-Dr Adomou Aristide

African Journals Online (AJOL)

Dr Gatsing

MPE and Traoré D (eds). CAB. International: UK and Cambridge; 19-39. INSAE 2002. Troisième recensement général de la population et de l'habitat. Résultats définitifs: Tableaux statistiques Cotonou,. Bénin, 4p. Lebrun J, Gilbert G. 1954. Une classification écologique des forêts du Congo. Publ. I.N.E.A.C., sér. Sc., 63: 89.

Prolonged Cycle Times and Schedule Growth in Defense Acquisition: A Literature Review

Science.gov (United States)

2014-01-01

10, 1979. DAU—See Defense Acquisition University. Decker, Gilbert F., Louis C. Wagner, William H. Forster, David M. Maddox, George T. Singley, and...March 2008. Bibliography 77 Johnson, Collie J., “Pentagon Systems Acquisition Director Speaks to Graduates of APMC 99-1,” PM Magazine, May–June...1999, pp. 8–11. Kassing, David , R. William Thomas, Frank Camm, and Carolyn Wong, How Funding Instability Affects Army Programs, Santa Monica, Calif

Stereoselective total synthesis of the potent anti-asthmatic compound CMI-977 (LDP-977)

Energy Technology Data Exchange (ETDEWEB)

Dias, Luiz Carlos; Farina, Lui Strambi; Ferreira, Marco Antonio Barbosa, E-mail: ldias@iqm.unicamp.br [Universidade de Campinas (UNICAMP), SP (Brazil). Instituto de Quimica

2013-02-15

A short and efficient stereoselective total synthesis of CMI-977 (LDP-977), a potent and orally active anti-asthmatic compound, was developed. The key steps involve a highly diastereoselective Mukaiyama oxidative cyclization, which provides the trans-THF (tetrahydrofuran) unit and a Seyferth-Gilbert homologation to construct the triple bond in the target molecule. The synthesis of the key chiral building block was performed using Jacobsen hydrolytic kinetic resolution. (author)

Self-compassion and social anxiety in adolescents: a systematic review of the association between shame and social anxiety and an empirical study of the relationship between selfcompassion and social anxiety in adolescents

OpenAIRE

Gill, Ciara Síobhan

2015-01-01

Background: Compassion Focused Therapy aims to reduce shame through the development of compassion towards the self (Gilbert & Proctor, 2006). In a recent meta-analysis, MacBeth & Gumley (2012), identified self-compassion as a good predictor of mental wellbeing in adult populations. In addition, Werner et al (2012) provided preliminary evidence that difficulties with self-compassion may contribute to the development and maintenance of social anxiety. Despite wide recognition tha...

Stereoselective total synthesis of the potent anti-asthmatic compound CMI-977 (LDP-977)

International Nuclear Information System (INIS)

Dias, Luiz Carlos; Farina, Lui Strambi; Ferreira, Marco Antonio Barbosa

2013-01-01

A short and efficient stereoselective total synthesis of CMI-977 (LDP-977), a potent and orally active anti-asthmatic compound, was developed. The key steps involve a highly diastereoselective Mukaiyama oxidative cyclization, which provides the trans-THF (tetrahydrofuran) unit and a Seyferth-Gilbert homologation to construct the triple bond in the target molecule. The synthesis of the key chiral building block was performed using Jacobsen hydrolytic kinetic resolution. (author)

Multifractal resilience and viability

Science.gov (United States)

Tchiguirinskaia, I.; Schertzer, D. J. M.

2017-12-01

The term resilience has become extremely fashionable and there had been many attempts to provide operational definition and in fact metrics going beyond a set of more or less ad-hoc indicators. The viability theory (Aubin and Saint-Pierre, 2011) have been used to give a rather precise mathematical definition of resilience (Deffuant and Gilbert, 2011). However, it does not grasp the multiscale nature of resilience that is rather fundamental as particularly stressed by Folke et al (2010). In this communication, we first recall a preliminary attempt (Tchiguirinskaia et al., 2014) to define multifractal resilience with the help of the maximal probable singularity. Then we extend this multifractal approach to the capture basin of the viability, therefore the resilient basin. Aubin, J P, A. Bayen, and P Saint-Pierre (2011). Viability Theory. New Directions. Springer, Berlin,. Deffuant, G. and Gilbert, N. (eds) (2011) Viability and Resilience of Complex Systems. Springer Berlin.Folke, C., S R Carpenter, B Walker, M Sheffer, T Chapin, and J Rockstroem (2010). Resilience thinking: integrating re- silience, adaptability and transformability. Ecology and So- ciety, 14(4):20, Tchiguirinskaia,I., D. Schertzer, , A. Giangola-Murzyn and T. C. Hoang (2014). Multiscale resilience metrics to assess flood. Proceedings of ICCSA 2014, Normandie University, Le Havre, France -.

Late quaternary geomorphology of the Great Salt Lake region, Utah, and other hydrographically closed basins in the western United States: A summary of observations

Science.gov (United States)

Currey, Donald R.

1989-01-01

Attributes of Quaternary lakes and lake basins which are often important in the environmental prehistory of semideserts are discussed. Basin-floor and basin-closure morphometry have set limits on paleolake sizes; lake morphometry and basin drainage patterns have influenced lacustrine processes; and water and sediment loads have influenced basin neotectonics. Information regarding inundated, runoff-producing, and extra-basin spatial domains is acquired directly from the paleolake record, including the littoral morphostratigraphic record, and indirectly by reconstruction. Increasingly detailed hypotheses regarding Lake Bonneville, the largest late Pleistocene paleolake in the Great Basin, are subjects for further testing and refinement. Oscillating transgression of Lake Bonneville began about 28,000 yr B.P.; the highest stage occurred about 15,000 yr B.P., and termination occurred abruptly about 13,000 yr B.P. A final resurgence of perennial lakes probably occurred in many subbasins of the Great Basin between 11,000 and 10,000 yr B.P., when the highest stage of Great Salt Lake (successor to Lake Bonneville) developed the Gilbert shoreline. The highest post-Gilbert stage of Great Salt Lake, which has been one of the few permanent lakes in the Great Basin during Holocene time, probably occurred between 3,000 and 2,000 yr B.P.

Refractory obstructive jaundice in a child affected with thalassodrepanocytosis: a new endoscopic approach

Directory of Open Access Journals (Sweden)

Barresi Luca

2010-10-01

Full Text Available Abstract Background Liver involvement, including elevated direct-reacting bilirubin levels, is common in patients with sickle cell disease. Fifty to seventy percent of sickle cell patients have pigmented gallstones due to precipitation of unconjugated bilirubin, and cholelithiasis or choledocholithiasis are common complications. The highest prevalence of these complications occurs in patients with Gilbert's syndrome because of the combined effect of increased bilirubin production and reduced bilirubin-diphosphate-glucuronosyltransferase enzyme activity. Cholelithiasis is also a common complication in patients with thalassemia. Endoscopic removal of choledochal stones does not always resolve the clinical picture, as in cases of dysfunction of the Vater's papilla, increased bile density due to persistently impaired bile flow or distortion of the choledocus due to dilatation, or inflammation secondary to gallstone. Case presentation We report here a case of severe and persistent obstructive jaundice in a child affected with thalassodrepanocytosis and Gilbert's syndrome, previously, and unsuccessfully, treated with endoscopic removal of choledochal stones. Deep and thorough biliary washing, and stenting with a new removable polytetrafluoroethylene (PTFE-covered flared-type stent led to complete resolution of the obstructive jaundice. Conclusions This report shows that an aggressive endoscopic approach in this select category of patients can help resolve the severe complication of hemolytic anemia, thus avoiding surgery.

Shark tooth weapons from the 19th Century reflect shifting baselines in Central Pacific predator assemblies.

Directory of Open Access Journals (Sweden)

Joshua Drew

Full Text Available The reefs surrounding the Gilbert Islands (Republic of Kiribati, Central Pacific, like many throughout the world, have undergone a period of rapid and intensive environmental perturbation over the past 100 years. A byproduct of this perturbation has been a reduction of the number of shark species present in their waters, even though sharks play an important in the economy and culture of the Gilbertese. Here we examine how shark communities changed over time periods that predate the written record in order to understand the magnitude of ecosystem changes in the Central Pacific. Using a novel data source, the shark tooth weapons of the Gilbertese Islanders housed in natural history museums, we show that two species of shark, the Spot-tail (Carcharhinus sorrah and the Dusky (C. obscurus, were present in the islands during the last half of the 19(th century but not reported in any historical literature or contemporary ichthyological surveys of the region. Given the importance of these species to the ecology of the Gilbert Island reefs and to the culture of the Gilbertese people, documenting these shifts in baseline fauna represents an important step toward restoring the vivid splendor of both ecological and cultural diversity.

On the possibility of localizing of electron group functions using the notion of antisymmetrical orthogonality

International Nuclear Information System (INIS)

Puchin, V.E.; Zapol, B.P.

1990-11-01

The authors try to solve the following problems: provided that variation freedom is not restricted and intragroup correlation is taken into account in a given approximation, is it possible to develop for group functions any analogue of the well known (in the case of orbitals) Adams-Gilbert-Kunz method that could give one a possibility to go from delocalized group functions to localized ones seeking for minimization of the intergroup correlation? 20 refs, 1 tab

Drug and Alcohol Studies (Volume 5: Interventions)

OpenAIRE

MacGregor, S; Thom, B

2014-01-01

VOLUME FIVE: INTERVENTIONS Natural Recovery from Alcohol Problems Harald Klingemann School-Based Programmes to Prevent Alcohol, Tobacco and Other Drug Use Gilbert Botvin and Kenneth Griffin Community Prevention of Alcohol Problems Harold Holder Can Screening and Brief Intervention Lead to Population-Level Reductions in Alcohol-Related Harm? Nick Heather Sharpening the Focus of Alcohol Policy from Aggregate Consumption to Harm and Risk Reduction Tim Stockwell et al A Review of the Efficacy and...

Ensuring Operational Access: Leveraging Engineering Contractors in the Pacific

Science.gov (United States)

2015-05-21

Flyvbjerg, ed., “Case Study” in The Sage Handbook of Qualitative Research (Sage Handbooks), 4th ed., ed. Norman K. Denzin and Yvonna S. Lincoln ...Research (Sage Handbooks). 4th ed, edited by Norman K. Denzin and Yvonna S. Lincoln , 301-16. Thousand Oaks: 60 Sage Publications, Inc., 2011...William Urwin, Facing Fearful Odds: The Siege of Wake Island ( Lincoln : University of Nebraska Press, 1997), 72. 93 Gilbert, Building for War, 13

Critical current density for spin transfer torque switching with composite free layer structure

OpenAIRE

You, Chun-Yeol

2009-01-01

Critical current density of composite free layer (CFL) in magnetic tunneling junction is investigated. CFL consists of two exchange coupled ferromagnetic layers, where the coupling is parallel or anti-parallel. Instability condition of the CFL under the spin transfer torque, which is related with critical current density, is obtained by analytic spin wave excitation model and confirmed by macro-spin Landau-Lifshitz-Gilbert equation. The critical current densities for the coupled two identical...

Manipulation of magnetic Skyrmions with a Scanning Tunneling Microscope

OpenAIRE

Wieser, R.

2016-01-01

The dynamics of a single magnetic Skyrmion in an atomic spin system under the influence of Scanning Tunneling Microscope is investigated by computer simulations solving the Landau-Lifshitz-Gilbert equation. Two possible scenarios are described: manipulation with aid of a spin-polarized tunneling current and by an electric field created by the scanning tunneling microscope. The dynamics during the creation and annihilation process is studied and the possibility to move single Skyrmions is showed.

MFM observation of spin structures in nano-magnetic-dot arrays fabricated by damascene technique

International Nuclear Information System (INIS)

Sato, K.; Yamamoto, T.; Tezuka, T.; Ishibashi, T.; Morishita, Y.; Koukitu, A.; Machida, K.; Yamaoka, T.

2006-01-01

Regularly aligned arrays of magnetic nano dots buried in silicon wafers have been fabricated using damascene technique with the help of electron beam lithography. Arrays of square, rectangular, cross-shaped and Y-shaped structures of submicron size have been obtained. Spin distributions have been observed by means of magnetic force microscopy and analyzed by a micromagnetic simulation with Landau-Lifshitz-Gilbert equations. Importance of magnetostatic interactions working between adjacent dots has been elucidated

Spin-orbit driven phenomena in the isoelectronic L1.sub.0./sub.-Fe(Pd,Pt) alloys from first principles

Czech Academy of Sciences Publication Activity Database

Kudrnovský, Josef; Drchal, Václav; Turek, Ilja

2017-01-01

Roč. 96, č. 21 (2017), s. 1-7, č. článku 214437. ISSN 2469-9950 R&D Projects: GA ČR GA15-13436S Institutional support: RVO:68378271 ; RVO:68081723 Keywords : anomalous Hall effect * Gilbert damping * partial order * first-principles * Fe(Pd,Pt) alloys Subject RIV: BM - Solid Matter Physics ; Magnetism OBOR OECD: Condensed matter physics (including formerly solid state physics, supercond.) Impact factor: 3.836, year: 2016

Far red bioluminescence from two deep-sea fishes.

Science.gov (United States)

Widder, E A; Latz, M I; Herring, P J; Case, J F

1984-08-03

Spectral measurements of red bioluminescence were obtained from the deep-sea stomiatoid fishes Aristostomias scintillans (Gilbert) and Malacosteus niger (Ayres). Red luminescence from suborbital light organs extends to the near infrared, with peak emission at approximately 705 nanometers in the far red. These fishes also have postorbital light organs that emit blue luminescence with maxima between 470 and 480 nanometers. The red bioluminescence may be due to an energy transfer system and wavelength-selective filtering.

Reinnervation of Paralyzed Muscle by Nerve-Muscle-Endplate Band Grafting

Science.gov (United States)

2015-10-01

Antoniadis G, Braun V, Rath SA, Richter HP. Evaluation of iatrogenic lesions in 722 surgically treated cases of peripheral nerve trauma. J Neurosurg...achieved by end-to-end approximation: review of 2,181 nerve lesions . Microsurgery. 1993;14(4):244- 246. 18 25. McAllister RM, Gilbert SE, Calder JS...innervation through irreparable damage to its nerve . DNI has been used for selective reinnervation of paralyzed laryngeal and facial muscles [15,16] as well

Sedimentary record of relay zone evolution, Central Corinth Rift (Greece): Role of fault propagation and structural inheritance.

Science.gov (United States)

Hemelsdaël, Romain; Ford, Mary; Meyer, Nicolas

2013-04-01

Relay zones along rift border fault systems form topographic lows that are considered to allow the transfer of sediment from the footwall into hanging wall depocentres. Present knowledge focuses on the modifications of drainage patterns and sediment pathways across relay zones, however their vertical motion during growth and interaction of faults segments is not well documented. 3D models of fault growth and linkage are also under debate. The Corinth rift (Greece) is an ideal natural laboratory for the study of fault system evolution. Fault activity and rift depocentres migrated northward during Pliocene to Recent N-S extension. We report on the evolution of a relay zone in the currently active southern rift margin fault system from Pleistocene to present-day. The relay zone lies between the E-W East Helike (EHF) and Derveni faults (DF) that lie just offshore and around the town of Akrata. During its evolution the relay zone captured the antecedent Krathis river which continued to deposit Gilbert-type deltas across the relay zone during fault interaction, breaching and post linkage phases. Moreover our work underlines the role that pre-existing structure in the location of the transfer zone. Offshore fault geometry and kinematics, and sediment distribution were defined by interpretation and depth conversion of high resolution seismic profiles (from Maurice Ewing 2001 geophysical survey). Early lateral propagation of the EHF is recorded by synsedimentary fault propagation folds while the DF records tilted block geometries since initiation. Within the relay zone beds are gradually tilted toward the basin before breaching. These different styles of deformation highlight mechanical contrasts and upper crustal partition associated with the development of the Akrata relay zone. Onshore detailed lithostratigraphy, structure and geomorphological features record sedimentation across the subsiding relay ramp and subsequent footwall uplift after breaching. The area is

不在の子宮 -メアリー・シェリーの『フランケンシュタイン』を読む-

OpenAIRE

渡部, 充; Watanabe, Mitsuru

1993-01-01

The female characters of Mary Shelley's Frankenstein play essentially the same role of a subservient and fall so vulnerably and innocently into the hands of the nameless creature,`Monster.'Such feminist critics as Moers,Poovey,Gilbert and Gubar,and Johnson, however, have shown that the male-dominance of the narrative and the monstrosity of the solitary heroes indicate that the consideration of relationship between and her text is very important to understand this seminal modern horror fully....

Circulant Matrices and Affine Equivalence of Monomial Rotation Symmetric Boolean Functions

Science.gov (United States)

2015-01-01

degree of the MRS is, we have a similar result as [40, Theorem 1.1] for n = 4p (p prime), or squarefree integers n, which along with our Theorem 5.2...Boolean functions: Construction and analysis in terms of algebraic immunity, in: H. Gilbert, H. Handschuh (Eds.), Fast Software Encryption, in: LNCS...vol. 1403, Springer-Verlag, 1998, pp. 475–488. [20] J.E. Fuller, Analysis of affine equivalent Boolean functions for cryptography (Ph.D. thesis

Elmo Bumpy Torus proof of principle. Phase II - title 1 report. Volume I. Device summary

International Nuclear Information System (INIS)

Haas, D.W.

1982-02-01

This document presents a summary of the EBT-P Preliminary Design (Title I) effort. The work was performed, under the direction of ORNL, for the Department of Energy by MDAC-St. Louis. Major subcontractors assisting MDAC included General Dynamics for the magnet system, Gilbert Associates for the device utilities and facility architecture and engineering, and Lockheed - Oak Ridge for engineering support services. The Title I period of performance was from 1 October 1980 to 1 March 1982

Exploiting the Automatic Dependent Surveillance-Broadcast System via False Target Injection

Science.gov (United States)

2012-03-01

IEEE Xplore . 8. Hal Stoen. (2001) VFR Flight. Retrieved February 15, 2012 from http://stoenworks.com/vfr%20flight.html 9. Cohen, B., & Smith, A...7. Gilbert, G. (1973). Historical development of the air traffic control system. IEEE Transactions on Communications, 364-375. Retrieved from...1998. Proceedings., 17th DASC. the AIAA/ IEEE /SAE,2 F44/1- F44/8 vol.2. 10. Livack, G. S., McDaniel, J. I., Battiste, V., & Johnson, W. W. (2000

Magnetic properties of a Cr trimer on Au(1 1 1) surface

International Nuclear Information System (INIS)

Antal, A.; Udvardi, L.; Ujfalussy, B.; Lazarovits, B.; Szunyogh, L.; Weinberger, P.

2007-01-01

A Cr trimer on Au(1 1 1) surface has been studied by means of a relativistic Green's function embedding technique [B. Ujfalussy, B. Lazarovits, L. Szunyogh, G.M. Stocks, P. Weinberger, Phys. Rev. B 70 (2004) 100404(R)]. In terms of the magnetic force theorem we fit parameters of an extended Heisenberg model. We then solve the Landau-Lifshitz-Gilbert equations in order to find the ground-state and to study the spin-dynamical properties of the cluster

Bridging the Gulf: A New Paradigm for Emergency Management on America’s Third Border

Science.gov (United States)

2012-03-01

of GDP.  1989—Hurricane Hugo caused Montserrat losses equal to or greater than 200 percent of GDP.  1994—Tropical Storm Debbie caused floods and...Each year one or more hurricanes strike the Caribbean region. Particularly destructive ones, such as Gilbert in 1988 and Hugo in 1989, can cause...CEDERA: Paul A. Bisek, 2001).  1995—Volcanic eruptions began in Montserrat totally wiping out the economy.  1998—Hurricane Georges affected 85

Dual Career Families within the Coast Guard Officer Corps.

Science.gov (United States)

1981-09-01

April 1979). Holahan, Carole K., and Lucia A. Gilbert, "Interrole Con- flict for Working Women: Careers Versus Jobs,"Journal of Applied Psychology, Vol...John-Parsons, Donald, "Continuous Dual-Career Families, A Case Study," Psychology of Women Quarterly, Vol. 3 (Fall 1978). Suter, Della J., The Two...U.S.C.G. 2 2904 Seminole Rd. Woodbridge, Virginia 22192 9. LT Della Suter 1 Naval Military Personnel Command (NMPC-6) Arlington Annex Washington, D

In vivo MR detection of fluorine-labeled human MSC using the bSSFP sequence

OpenAIRE

Ribot, Emeline J; Gaudet, Jeffrey M; Chen, Yuhua; Gilbert, Kyle M; Foster, Paula J

2014-01-01

Emeline J Ribot,1 Jeffrey M Gaudet,1,2 Yuhua Chen,1 Kyle M Gilbert,1 Paula J Foster1,2 1Imaging Research Laboratories, Robarts Research Institute, London, ON, Canada; 2Department of Medical Biophysics, University of Western Ontario, London, ON, Canada Abstract: Mesenchymal stem cells (MSC) are used to restore deteriorated cell environments. There is a need to specifically track these cells following transplantation in order to evaluate different methods of implantation, to follow their migra...

Libertarianism & Category-Mistake

OpenAIRE

Carlos G. Patarroyo G.

2009-01-01

This paper offers a defense against two accusations according to which libertarianism incurs in a category-mistake. The philosophy of Gilbert Ryle will be used to explain the reasons which ground these accusations. Further, it will be shown why, although certain sorts of libertarianism based on agent-causation or Cartesian dualism incur in these mistakes, there is at least one version of libertarianism to which this criticism does not necessarily apply: the version that seeks to find in physi...

Reliability of Calderbank-Shor-Steane codes and security of quantum key distribution

International Nuclear Information System (INIS)

Hamada, Mitsuru

2004-01-01

After Mayers (1996 Advances in Cryptography: Proc. Crypto'96 pp 343-57; 2001 J. Assoc. Comput. Mach. 48 351-406) gave a proof of the security of the Bennett-Brassard (1984 Proc. IEEE Int. Conf. on Computers, Systems and Signal Processing (Bangalore, India) pp 175-9) (BB84) quantum key distribution protocol, Shor and Preskill (2000 Phys. Rev. Lett. 85 441-4) made a remarkable observation that a Calderbank-Shor-Steane (CSS) code had been implicitly used in the BB84 protocol, and suggested its security could be proved by bounding the fidelity, say F n , of the incorporated CSS code of length n in the form 1-F n ≤ exp[-nE + o(n)] for some positive number E. This work presents such a number E = E(R) as a function of the rate of codes R, and a threshold R 0 such that E(R) > 0 whenever R 0 , which is larger than the achievable rate based on the Gilbert-Varshamov bound that is essentially given by Shor and Preskill. The codes in the present work are robust against fluctuations of channel parameters, which fact is needed to establish the security rigorously and was not proved for rates above the Gilbert-Varshamov rate before in the literature. As a byproduct, the security of a modified BB84 protocol against any joint (coherent) attacks is proved quantitatively

O imaginário do lazer e do lúdico anunciado em práticas espontâneas do corpo brincante The imaginary of leisure and ludic announced in spontaneous practices of a playful self body

Directory of Open Access Journals (Sweden)

Soraia Chung Saura

2013-01-01

Full Text Available Esta pesquisa apresenta investigação acerca do imaginário do lazer inscrito no corpo à luz da antropologia do imaginário, valendo-se da fenomenologia da imaginação material em Gaston Bachelard e da filosofia da imagem em Gilbert Durand, dentro de um quadro de educação de sensibilidade, voltada para a temática do brincar em crianças da educação infantil. Os gestos revelados enquanto brincam espontaneamente delineiam um imaginário corporal mítico, ancestral, deflagrador de vivências relacionadas à cultura humana, formador e estruturante da pessoa, justificando assim sua presença no espaço escolar.This research presents an investigation with leisure imaginary inscribed in the body with the phenomenology of material imagination in Gaston Bachelard's work and at the philosophy of image at Gilbert Durand's work in a perspective of sensible education, where the play and leisure practices occur spontaneously taking into account the reality of children's play. The gestures that are reveled when children are in spontaneous play make mythic recurrence evident, showing a corporality full of ancestral images, related to the human culture, structural to the children, which shows it to be not only important, but necessary into the school contest.

Bibliography of Joint Aircraft Survivability Reports and Related Documents

Science.gov (United States)

1994-07-01

the GEN-X Model from ESAMS 1.5 to ESAMS 1.7 (U) 82 NWSC0CRAflfl JTCG/AS-91-SM-008 ROCOCO COLUMN Warhead Threat Performance Model (U) 83 JTCG/AS-91-SM...of the transition. 82 SM-3-17 JTCG/AS-91-SM-008 SECRET Title: ROCOCO COLUMN Warhead Threat Performance Model (U) Issued: February 1991 DTIC AD # Not...Lillard Gilbert Abstract: (U) The ROCOCO COLUMN Warhead Threat characterization program was conducted specifically to provide fragment weight, shape

Characteristics of crosstalk in the reproduced output of a newly developed multi-channel MR head

International Nuclear Information System (INIS)

Machida, K.; Hayashi, N.; Yoneda, Y.; Numazawa, J.; Kohro, M.; Tanabe, T.

2001-01-01

We prepared the multi-channel magnetoresistive head with a simple structural design and it has the advantages of high-density recording and ultra-high transfer rate. Characteristics of crosstalk in the reproduced output of our head have been estimated by a micromagnetic calculation using the Landau-Lifshitz-Gilbert (LLG) equation, while the specimen head was fabricated and evaluated. As a result, by applying a magnetic field of 40 Oe only between adjacent channels, the crosstalk was much decreased without reducing the reproduced output

Effect of thermal fluctuations in spin-torque driven magnetization dynamics

International Nuclear Information System (INIS)

Bonin, R.; Bertotti, G.; Serpico, C.; Mayergoyz, I.D.; D'Aquino, M.

2007-01-01

Nanomagnets with uniaxial symmetry driven by an external field and spin-polarized currents are considered. Anisotropy, applied field, and spin polarization are all aligned along the symmetry axis. Thermal fluctuations are described by adding a Gaussian white noise stochastic term to the Landau-Lifshitz-Gilbert equation for the deterministic dynamics. The corresponding Fokker-Planck equation is derived. It is shown that deterministic dynamics, thermal relaxation, and transition rate between stable states are governed by an effective potential including the effect of current injection

Effect of thermal fluctuations in spin-torque driven magnetization dynamics

Energy Technology Data Exchange (ETDEWEB)

Bonin, R. [INRiM, I-10135 Turin (Italy)]. E-mail: bonin@inrim.it; Bertotti, G. [INRiM, I-10135 Turin (Italy); Serpico, C. [Dipartimento di Ingegneria Elettrica, Universita di Napoli ' Federico II' I-80125 Naples (Italy); Mayergoyz, I.D. [Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742 (United States); D' Aquino, M. [Dipartimento per le Tecnologie, Universita di Napoli ' Parthenope' , I-80133 Naples (Italy)

2007-09-15

Nanomagnets with uniaxial symmetry driven by an external field and spin-polarized currents are considered. Anisotropy, applied field, and spin polarization are all aligned along the symmetry axis. Thermal fluctuations are described by adding a Gaussian white noise stochastic term to the Landau-Lifshitz-Gilbert equation for the deterministic dynamics. The corresponding Fokker-Planck equation is derived. It is shown that deterministic dynamics, thermal relaxation, and transition rate between stable states are governed by an effective potential including the effect of current injection.

Tilted bending magnet for SPS target area TCC2

CERN Multimedia

CERN PhotoLab

1976-01-01

A slow-extracted proton beam from the SPS goes to the underground target zone TCC2. The part of the primary beam which traverses target T4 is recuperated and transported over some 800 m, for further use in the North Area High Intensity facility (NAHIF). The curved and sloped trajectory required 4 of the bending magnets to be tilted. Here we see one of them being attended by Gilbert Françon in hall 867, ready for installation in TCC2.

Child neurology residency: system implications of new training models.

Science.gov (United States)

Heiser, Karen

2012-02-01

From limitations on residents' duty hours, to ways in which outcomes are measured, changes to graduate medical education are sweeping the nation. In this issue of the journal, Gilbert and Greenwood present thoughtful, if somewhat disparate, opinions on ways to improve the educational experience of child neurology trainees. As the Designated Institutional Officer of a large children's hospital, I have focused my commentary on "the big picture." That is, what systemwide impact can changes in child neurology trainees' education have.

Mutual synchronization of spin-torque oscillators consisting of perpendicularly magnetized free layers and in-plane magnetized pinned layers

Science.gov (United States)

Taniguchi, Tomohiro; Tsunegi, Sumito; Kubota, Hitoshi

2018-01-01

A mutual synchronization of spin-torque oscillators coupled through current injection is studied theoretically. Models of electrical coupling in parallel and series circuits are proposed. Solving the Landau-Lifshitz-Gilbert equation, excitation of in-phase or antiphase synchronization, depending on the ways the oscillators are connected, is found. It is also found from both analytical and numerical calculations that the current-frequency relations for both parallel and series circuits are the same as that for a single spin-torque oscillator.

Materials Research Society Symposium Proceedings. Volume 723. Molecularly Imprinted Materials - Sensors and Other Devices. Symposia Held in San Francisco, California on April 2-5, 2002

Science.gov (United States)

2002-04-05

Ana Rego for the XPS measurements. This work was supported by the Fundaqo para a Ciencia e Tecnologia (FCT) through their POCTI program (#: 34022/99). F...Buchheit, H. Kahn, 2002, ISBN: 1-55899-623-0 Volume 688- Ferroelectric Thin Films X, S.R. Gilbert, Y . Miyasaka, D. Wouters, S. Trolier-McKinstry...Surface Engineering 2001--Fundamentals and Applications, W.J. Meng, A. Kumar, Y -W. Chung, G.L. Doll, Y -T. Cheng, S. Veprek, 2002, ISBN: 1-55899-633-8 Volume

A Natural Way to Stay Sweet

Science.gov (United States)

2004-01-01

A revolutionary, low-calorie sugar is now available to the food and beverage market, offering an all-natural alternative to table sugar and artificial sweeteners. Tagatose, a sugar that appears in nature in small quantities, began its unusual journey to the commercial market nearly 30 years ago, when Dr. Gilbert V. Levin invented a life detection experiment to place aboard NASA s Mars Viking 1 and Viking 2 landers. The experiment involved using radiation-laced nutrients to determine the presence of microbial life in Martian soil samples.

Vector geometry

CERN Document Server

Robinson, Gilbert de B

2011-01-01

This brief undergraduate-level text by a prominent Cambridge-educated mathematician explores the relationship between algebra and geometry. An elementary course in plane geometry is the sole requirement for Gilbert de B. Robinson's text, which is the result of several years of teaching and learning the most effective methods from discussions with students. Topics include lines and planes, determinants and linear equations, matrices, groups and linear transformations, and vectors and vector spaces. Additional subjects range from conics and quadrics to homogeneous coordinates and projective geom

Wideband Monolithic Microwave Integrated Circuit Frequency Converters with GaAs mHEMT Technology

OpenAIRE

Krozer, Viktor; Johansen, Tom Keinicke; Djurhuus, Torsten; Vidkjær, Jens

2005-01-01

We present monolithic microwave integrated circuit (MMIC) frequency converter, which can be used for up and down conversion, due to the large RF and IF port bandwidth. The MMIC converters are based on commercially available GaAs mHEMT technology and are comprised of a Gilbert mixer cell core, baluns and combiners. Single ended and balanced configurations DC and AC coupled have been investigated. The instantaneous 3 dB bandwidth at both the RF and the IF port of the frequency converters is ∼ 2...

Relationship of clonogenic cells and 'tumour-rescuing cells', modelled in irradiated spheroids in vitro

International Nuclear Information System (INIS)

Moore, J.V.; Hendry, J.H.

1984-01-01

Using the method of double negative logs (Gilbert, 1974), in which the probability of death (Pm) of a structure (e.g. spheroid, tumour or organism) after a given dose D, is related to the survival characteristics after irradiation of target cells (TRC) within the structure, the authors have reexamined the data of Durand (1975) for spheroids of V79-171 Chinese hamster cells grown in spinner culture, and of Pourreau-Schneider and Malaise (1981) for Na II human melanoma grown on agar. (U.K.)

Skyrmionic spin Seebeck effect via dissipative thermomagnonic torques

Science.gov (United States)

Kovalev, Alexey A.

2014-06-01

We derive thermomagnonic torque and its "β-type" dissipative correction from the stochastic Landau-Lifshitz-Gilbert equation. The β-type dissipative correction describes viscous coupling between magnetic dynamics and magnonic current and it stems from spin mistracking of the magnetic order. We show that thermomagnonic torque is important for describing temperature gradient induced motion of skyrmions in helical magnets while dissipative correction plays an essential role in generating transverse Magnus force. We propose to detect such skyrmionic motion by employing the transverse spin Seebeck effect geometry.

Libertarismo & Error Categorial

OpenAIRE

PATARROYO G, CARLOS G

2009-01-01

En este artículo se ofrece una defensa del libertarismo frente a dos acusaciones según las cuales éste comete un error categorial. Para ello, se utiliza la filosofía de Gilbert Ryle como herramienta para explicar las razones que fundamentan estas acusaciones y para mostrar por qué, pese a que ciertas versiones del libertarismo que acuden a la causalidad de agentes o al dualismo cartesiano cometen estos errores, un libertarismo que busque en el indeterminismo fisicalista la base de la posibili...

(s, μ)-similar operators in the Banach spaces

International Nuclear Information System (INIS)

Samarskij, V.G.

1978-01-01

The theory of the operator ideals formed by means of S function is developed. The problem of the construction of the operator acting from one Banach space to another whose S numbers are near to the given ones, is solved. Several conditions, sufficient for that any wholly continuous operator in the Gilbert space were transferred to the given pair of the Banach spaces without distorting too much the values of its S-numbers, are given. All the considered operators are assumed to be linear and continuous ones

Bottoms up design of the Elmo Bumpy Torus - proof of principal (EBT-P) fusion research facility

International Nuclear Information System (INIS)

Erickson, D.T.

1981-01-01

The McDonnell Douglas Astronautics Company, under subcontract to the Union Carbide Corporation Nuclear Division at the DOE Oak Ridge National Laboratory has committed to furnish the EBT-P research facility. Gilbert Associates, Inc. of Reading, Pennysylvania, as the Architect and Engineering subcontractor has been selected for design and construction of this facility. The bottoms up effort to provide the EBT-P facility is now alive and well, with the property purchased, dedication ceremonies conducted, the Preliminary Design effort completed and detail design currently active

Perioperative Anaesthetic Management of a Patient of Gilbert’s Syndrome with Adult Congenital Heart Disease - A Rare Presentation

Directory of Open Access Journals (Sweden)

Sambhunath Das

2014-11-01

Full Text Available Gilbert's syndrome is a hereditary condition with the genetic mutation of the enzyme uridine diphosphate glucuronosyltransferase, characterized by intermittent jaundice in the absence of hemolysis or underlying liver disease. These patients develop jaundice when subjected to fasting, stress and exercise. Majority of anaesthetics are metabolized by liver. Anaesthesia, surgery and cardiopulmonary bypass (CPB can act as triggers to hepatic injury. The successful perioperative management of an adult congenital heart disease patient for atrial septal defect closure under cardiopulmonary bypass was discussed in this report.

Domain walls in (Ga,Mn)As diluted magnetic semiconductor

Czech Academy of Sciences Publication Activity Database

Sugawara, A.; Kasai, H.; Tonomura, A.; Brown, P.D.; Campion, R. P.; Edmonds, K. W.; Gallagher, B. L.; Zemen, Jan; Jungwirth, Tomáš

2008-01-01

Roč. 100, č. 4 (2008), 047202/1-047202/4 ISSN 0031-9007 R&D Projects: GA MŠk LC510; GA ČR GEFON/06/E002; GA ČR GA202/05/0575; GA ČR GA202/04/1519 EU Projects: European Commission(XE) 015728 - NANOSPIN Institutional research plan: CEZ:AV0Z10100521 Keywords : dilute ferromagnetic semiconductor * Néel domain walls * electron holography * Landau-Lifshitz-Gilbert simulation Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 7.180, year: 2008

Post-middle Miocene Tuffs of Bodie Hills and Mono Basin, California: Paleomagnetic Reference Directions and Vertical Axis Rotation

Science.gov (United States)

Lindeman, J. R.; Pluhar, C. J.; Farner, M. J.

2013-12-01

The relative motions of the Pacific and North American plates about the Sierra Nevada-North American Euler pole is accommodated by dextral slip along the San Andreas Fault System (~75%) and the Walker Lane-Eastern California Shear Zone system of faults, east of the Sierra Nevada microplate (~25%). The Bodie Hills and Mono Basin regions lie within the Walker Lane and partially accommodate deformation by vertical axis rotation of up to 60o rotation since ~9.4 Ma. This region experienced recurrent eruptive events from mid to late Miocene, including John et al.'s (2012) ~12.05 Ma Tuff of Jack Springs (TJS) and Gilbert's (1968) 11.1 - 11.9 Ma 'latite ignimbrite' east of Mono Lake. Both tuffs can be identified by phenocrysts of sanidine and biotite in hand specimens, with TJS composed of a light-grey matrix and the latite ignimbrite composed of a grey-black matrix. Our paleomagnetic results show these units to both be normal polarity, with the latite ignimbrite exhibiting a shallow inclination. TJS's normal polarity is consistent with emplacement during subchron C5 An. 1n (12.014 - 12.116 Ma). The X-ray fluorescence analyses of fiamme from TJS in Bodie Hills and the latite ignimbrite located east of Mono Lake reveal them both to be rhyolites with the latite ignimbrite sharing elevated K composition seen in the slightly younger Stanislaus Group (9.0 - 10.2 Ma). We establish a paleomagnetic reference direction of D = 352.8o I = 42.7o α95 = 7.7o n = 5 sites (42 samples) for TJS in the Bodie Hills in a region hypothesized by Carlson (2012) to have experienced low rotation. Our reference for Gilbert's latite ignimbrite (at Cowtrack Mountain) is D = 352.9o I = 32.1o α95 = 4.7o. This reference locality is found on basement highland likely to have experienced less deformation then the nearby Mono Basin since ignimbrite emplacement. Paleomagnetic results from this latite ignimbrite suggests ~98.2o × 5.5o of clockwise vertical axis rotation of parts of eastern Mono Basin since

The Sense in Image: the Communication of Contemporary Strategies of facing the World through the Picture O Sentido Posto em Imagem: a Comunicação de Estratégias Contemporâneas de Enfrentamento do Mundo Através da Fotografia

Directory of Open Access Journals (Sweden)

Ana Taís Martins Portanova Barros

2010-07-01

Full Text Available This work verifies to what extent the picture, product of a mediation strongly technique, can reveal an imaginary. With the presupposition that the pictures constitute communicative actions to share world visions, we examined phtographs done by amateurs. The aim is to use the Studies of the Imaginary by Gilbert Durand to look symbolic images for the photographic images. It is ended that the symbolic imagination is present also in an activity eminently technique as the picture, and that the abundance of pictures of the intimate banalities indicates a conversion of the objetictiv and warlike imaginary to an euphemistic and subjetctiv imaginary. Este trabalho tem como objetivo verificar até que ponto a fotografia, produto de uma mediação fortemente técnica, pode revelar um imaginário. Com o pressuposto de que as fotografias constituem atos comunicativos que desejam partilhar visões de mundo, são examinadas fotografias do cotidiano feitas por amadores. Utilizam-se os Estudos do Imaginário encetados por Gilbert Durand para buscar as imagens simbólicas movimentadas pelas imagens fotográficas. Conclui-se que a imaginação simbólica está presente também numa atividade eminentemente técnica como a fotografia, e que a abundância de fotografias das banalidades íntimas indica uma conversão do imaginário objetivante e bélico a um imaginário eufemizador e subjetivante.

O JARDIM DE SI: o imaginário de CLAUDIA ROQUETTE-PINTO

Directory of Open Access Journals (Sweden)

Antonio Rediver Guizzo

2014-12-01

Full Text Available A lírica de Claudia Roquette-Pinto encontra no ambiente do jardim, simulacro miniaturizado do mundo natural, as imagens que compõem a representação simbólica do conflito surgido entre o eu e o mundo, e intensa reflexão metapoética. As imagens recorrentes da queda, da flor, da escuridão e do corpo que enformam a materialidade simbólica de Roquette-Pinto revelam uma lírica constituída em uma zona de transição, estabelecida entre saturação da ordem social orientada pelo aproveitamento racional do mundo e pela dominação da natureza, e a insurgência pós-moderna de uma ordem ecológica, na qual se privilegia a fruição mais livre do presente. A abordagem metodológica escolhida para adentrar a lírica de Claudia Roquette-Pinto orienta-se a partir da teoria das estruturas antropológicas do imaginário proposta por Gilbert Durand conjuntamente com as reflexões sobre a sociedade contemporânea presentes na obra do sociólogo Michel Maffesoli. Na primeira e segunda seção do artigo, apresentam-se brevemente considerações sobre o imaginário e o estruturalismo figurativo de Gilbert Durand; na terceira seção analisa-se um pequeno recorte da lírica de Roquette-Pinto.

Biomass gasification hot gas cleanup for power generation

Energy Technology Data Exchange (ETDEWEB)

Wiant, B.C.; Bachovchin, D.M. [Westinghouse Electric Corp., Orlando, FL (United States); Carty, R.H.; Onischak, M. [Institute of Gas Technology, Chicago, IL (United States); Horazak, D.A. [Gilbert/Commonwealth, Reading, PA (United States); Ruel, R.H. [The Pacific International Center for High Technology Research, Honolulu, HI (United States)

1993-12-31

In support of the US Department of Energy`s Biomass Power Program, a Westinghouse Electric led team consisting of the Institute of Gas Technology (IGT), Gilbert/Commonwealth (G/C), and the Pacific International Center for High Technology Research (PICHTR), is conducting a 30 month research and development program. The program will provide validation of hot gas cleanup technology with a pressurized fluidized bed, air-blown, biomass gasifier for operation of a gas turbine. This paper discusses the gasification and hot gas cleanup processes, scope of work and approach, and the program`s status.

Spatio-temporal dynamics of global H5N1 outbreaks match bird migration patterns

CSIR Research Space (South Africa)

Si, Y

2009-11-01

Full Text Available , Chaitaweesub P, Songserm T, Chaisingh A, Hoonsuwan W, Buranathai C, Parakamawongsa T, Premashthira S, Amonsin A, Gilbert M, Nielen M, Stegeman A, 2005. Highly pathogenic avian influenza H5N1, Thailand, 2004. Emerg Infect Dis 11, 1664-1672. Ward MP, Maftei... (Fig. 4IIIa-b), eight clusters were located in western Russia and Kazakhstan. In southeast Asia, clusters were identified in Thailand between July and September (Fig. 4IIIa-c), reappearing in south Y. Si et al. - Geospatial Health 4(1), 2009, pp. 65...

Magnetization Reversal Process of Single Crystal α-Fe Containing a Nonmagnetic Particle

International Nuclear Information System (INIS)

Li Yi; Xu Ben; Li Qiu-Lin; Liu Wei; Hu Shen-Yang; Li Yu-Lan

2015-01-01

The magnetization reversal process and hysteresis loops in a single crystal α-iron with nonmagnetic particles are simulated in this work based on the Landau—Lifshitz—Gilbert equation. The evolutions of the magnetic domain morphology are studied, and our analyses show that the magnetization reversal process is affected by the interaction between the moving domain wall and the existing nonmagnetic particles. This interaction strongly depends on the size of the particles, and it is found that particles with a particular size contribute the most to magnetic hardening. (paper)

Minimizing Communication in All-Pairs Shortest Paths

Science.gov (United States)

2013-02-13

on a 16,384 vertex, 5% dense graph, is slightly faster using our approach (18.6 vs . 22.6 seconds) than using the replicated Johnson’s algorithm...Oracle and Samsung , as well as MathWorks. Research is also supported by DOE grants DE-SC0004938, DE-SC0005136, DE-SC0003959, DE-SC0008700, and AC02...Brickell, I. S. Dhillon, S. Sra, and J. A. Tropp. The metric nearness problem. SIAM J. Matrix Anal. Appl ., 30:375–396, 2008. [11] A. Buluç, J. R. Gilbert

Libertarianism & Category-Mistake

Directory of Open Access Journals (Sweden)

Carlos G. Patarroyo G.

2009-12-01

Full Text Available This paper offers a defense against two accusations according to which libertarianism incurs in a category-mistake. The philosophy of Gilbert Ryle will be used to explain the reasons which ground these accusations. Further, it will be shown why, although certain sorts of libertarianism based on agent-causation or Cartesian dualism incur in these mistakes, there is at least one version of libertarianism to which this criticism does not necessarily apply: the version that seeks to find in physical indeterminism the grounding of human free will.

Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)

Energy Technology Data Exchange (ETDEWEB)

Langner, Matthew C.; Kantner, Colleen L.S.; Chu, Y.H.; Martin, Lane M.; Yu, Pu; Ramesh, R.; Orenstein, Joe

2008-12-03

We report the observation of ferromagnetic resonance (FMR) in SrRuO3 using the time-resolved magnetooptical Kerr effect. The FMR oscillations in the time-domain appear in response to a sudden, optically induced change in the direction of easy-axis anistropy. The high FMR frequency, 250 GHz, and large Gilbert damping parameter, alpha ~;; 1, are consistent with strong spin-orbit coupling. We find that the parameters associated with the magnetization dynamics, including alpha, have a non-monotonic temperature dependence, suggestive of a link to the anomalous Hall effect.

Decoding LDPC Convolutional Codes on Markov Channels

Directory of Open Access Journals (Sweden)

Kashyap Manohar

2008-01-01

Full Text Available Abstract This paper describes a pipelined iterative technique for joint decoding and channel state estimation of LDPC convolutional codes over Markov channels. Example designs are presented for the Gilbert-Elliott discrete channel model. We also compare the performance and complexity of our algorithm against joint decoding and state estimation of conventional LDPC block codes. Complexity analysis reveals that our pipelined algorithm reduces the number of operations per time step compared to LDPC block codes, at the expense of increased memory and latency. This tradeoff is favorable for low-power applications.

Decoding LDPC Convolutional Codes on Markov Channels

Directory of Open Access Journals (Sweden)

Chris Winstead

2008-04-01

Full Text Available This paper describes a pipelined iterative technique for joint decoding and channel state estimation of LDPC convolutional codes over Markov channels. Example designs are presented for the Gilbert-Elliott discrete channel model. We also compare the performance and complexity of our algorithm against joint decoding and state estimation of conventional LDPC block codes. Complexity analysis reveals that our pipelined algorithm reduces the number of operations per time step compared to LDPC block codes, at the expense of increased memory and latency. This tradeoff is favorable for low-power applications.

Inherited Disorders of Bilirubin Clearance

Science.gov (United States)

Memon, Naureen; Weinberger, Barry I; Hegyi, Thomas; Aleksunes, Lauren M

2016-01-01

Inherited disorders of hyperbilirubinemia may be caused by increased bilirubin production or decreased bilirubin clearance. Reduced hepatic bilirubin clearance can be due to defective 1) unconjugated bilirubin uptake and intrahepatic storage, 2) conjugation of glucuronic acid to bilirubin (e.g. Gilbert syndrome, Crigler-Najjar syndrome, Lucey-Driscoll syndrome, breast milk jaundice), 3) bilirubin excretion into bile (Dubin-Johnson syndrome), or 4) conjugated bilirubin re-uptake (Rotor syndrome). In this review, the molecular mechanisms and clinical manifestations of these conditions are described, as well as current approaches to diagnosis and therapy. PMID:26595536

A SiGe High Gain and Highly Linear F-Band Single-Balanced Subharmonic Mixer

OpenAIRE

Seyedhosseinzadeh, Neda; Nabavi, Abdolreza; Carpenter, Sona; He, Zhongxia Simon; Bao, Mingquan; Zirath, Herbert

2017-01-01

A compact, broadband, high gain, second-order active down-converter subharmonic mixer is demonstrated using a 130-nm SiGe BiCMOS technology. The mixer adopts a bottom-LO Gilbert topology, on-chip RF and LO baluns and two emitter-follower buffers to realize a high gain wideband operation in both RF and IF frequencies. The measured performance exhibits a flat conversion gain (CG) of about 11 dB from 90 to 130 GHz with an average LO power of +3 dBm and high 2LO-RF isolation better than 60 dB. Th...

Game design from blue sky to green light

CERN Document Server

Todd, Deborah

2007-01-01

Just Cause, Avalanche Studios, Just Cause, March 2007 pulled off a remarkable feat: she's produced a book that's both inspirational and practical. Listen to her and the other video game industry experts she interviews, and save yourself years of forehead-slapping."""" -Corey Bridges, Multiverse, Multiverse, March 2007 Chapter 3: The Yin and Yang of Brainstorming """"Every good brainstorming session starts with a 15-minute discussion of Star Trek."""" - Noah Falstein , quoting Ron Gilbert -Game Career Guide, February 2007 """"Next-Gen.Biz Podcast Episode 22: Deborah Todd, author of the book Ga

Dynamic response in a finite size composite multiferroic thin film

Energy Technology Data Exchange (ETDEWEB)

Wang, Zidong, E-mail: Zidong.Wang@auckland.ac.nz; Grimson, Malcolm J. [Department of Physics, The University of Auckland, Auckland 1010 (New Zealand)

2016-03-28

Composite multiferroics, heterostructures of ferromagnetic and ferroelectric materials, are characterized by a remarkable magnetoelectric effect at the interface. Previous work has supported the ferromagnetic structure with magnetic spins and the ferroelectric with pseudospins which act as electric dipoles in a microscopic model, coupled with a magnetoelectric interaction [Wang and Grimson, J. Appl. Phys. 118, 124109 (2015)]. In this work, by solving the stochastic Landau-Lifshitz-Gilbert equation, the electric-field-induced magnetization switching in a twisted boundary condition has been studied, and a behavior of domain wall in the ferromagnetic structure is discussed.

The Danish Euro

DEFF Research Database (Denmark)

Ravn Sørensen, Anders

2014-01-01

In this article, I analyse the political debate leading up to the Danish euro referendum in 2000. I show how the euro-positive government unintentionally reinforced the arguments of the euro-sceptics by framing the euro as something belonging to the nation-state. I argue that this paradoxical...... campaign strategy stems from the Danish conceptualisation of nation and state and from the close connection between national currencies and feelings of community and citizenship more general. The analysis confirms the suggestion made by Gilbert that new monetary organisation, such as European Monetary...

Effect of fenofibrate on blood pressure reduction

Directory of Open Access Journals (Sweden)

A K Lipatenkova

2013-03-01

Full Text Available Реферат по материалам статей 1. Gilbert K, Nian H, Yu C, Luther JM, Brown NJ. Fenofibrate lowers blood pressure in salt-sensitive but not salt-resistant hypertension. J Hypertens. 2013 Apr;31(4:820-9. doi: 10.1097/HJH.0b013e32835e8227. 2. Kwang K. K. Does Fenofibrate Lower Blood Pressure? Hypertension. 2013 Mar;61(3:e27. doi: 10.1161/HYPERTENSIONAHA.111.00792.

The shadow, the tyrant and the insane: the east and west dualism in the visual journalism

Directory of Open Access Journals (Sweden)

Alberto Klein

2014-07-01

Full Text Available This paper explores the East and West dualism considering three images: the shadow, the tyrant and the insane, respectively linked to Osama Bin Laden, Saddam Hussein and Mahmoud Ahmadinejad. These representations, given their occurrence in the media, appear as stereotypes in the visual journalism, being in total opposition to western values, such as illuminism, democracy and reason. From the perspective of the concept of Orientalism, the text also analyzes semiotic procedures which constitute the process of demonization, according to the contribuitions of Ivan Bystrina, Gilbert Durand and Stuart Clark.

Synchronization of spin torque nano-oscillators through dipolar interactions

International Nuclear Information System (INIS)

Chen, Hao-Hsuan; Wu, Jong-Ching; Horng, Lance; Lee, Ching-Ming; Chang, Ching-Ray; Chang, Jui-Hang

2014-01-01

In an array of spin-torque nano-oscillators (STNOs) that combine a perpendicular polarized fixed layer with strong in-plane anisotropy in the free layers, magnetic dipolar interactions can effectively phase-lock the array, thus further enhancing the power of the output microwave signals. We perform a qualitative analysis of the synchronization of an array based on the Landau-Lifshitz-Gilbert equation, with a spin-transfer torque that assumes strong in-plane anisotropy. Finally, we present the numerical results for four coupled STNOs to provide further evidence for the proposed theory

Synchronization of spin torque nano-oscillators through dipolar interactions

Energy Technology Data Exchange (ETDEWEB)

Chen, Hao-Hsuan, E-mail: d95222014@ntu.edu.tw; Wu, Jong-Ching, E-mail: phjcwu@cc.ncue.edu.tw; Horng, Lance [Department of Physics, National Changhua University of Education, Changhua 500, Taiwan (China); Lee, Ching-Ming [Graduate School of Materials Science, National Yunlin University of Science and Technology, Douliou, 64002, Taiwan (China); Chang, Ching-Ray, E-mail: crchang@phys.ntu.edu.tw; Chang, Jui-Hang [Department of Physics and Center for Quantum Sciences and Engineering, National Taiwan University, Taipei 10617, Taiwan (China)

2014-04-07

In an array of spin-torque nano-oscillators (STNOs) that combine a perpendicular polarized fixed layer with strong in-plane anisotropy in the free layers, magnetic dipolar interactions can effectively phase-lock the array, thus further enhancing the power of the output microwave signals. We perform a qualitative analysis of the synchronization of an array based on the Landau-Lifshitz-Gilbert equation, with a spin-transfer torque that assumes strong in-plane anisotropy. Finally, we present the numerical results for four coupled STNOs to provide further evidence for the proposed theory.

About the inclusion of eddy currents in micromagnetic computations

International Nuclear Information System (INIS)

Torres, L.; Martinez, E.; Lopez-Diaz, L.; Alejos, O.

2004-01-01

A three-dimensional dynamic micromagnetic model including the effect of eddy currents and its application to magnetization reversal processes in permalloy nanostructures is presented. Model assumptions are tangential current on the nanostructure surface, electrical neutrality and negligible displacement current. The method for solving Landau Lifschitz Gilbert equation coupled to Maxwell equations incorporating the Faraday's law is discussed in detail. The results presented for Permalloy nanocubes of 40 nm side show how the effect of eddy currents can anticipate the magnetization switching. The dependence of the calculations on computational cell size is also reported

La comunidad del naciente : por una biopolítica afirmativa del exceso

OpenAIRE

Gómez Montañez, César Mario

2010-01-01

Quisiéramos, en respuesta a Jean-Luc Nancy, arriesgar un desarrollo de la cuestión de la comunidad que, a su vez, nos permita resignificar la individualidad y la inmanencia. En otras palabras, se trata de rearticular individuo y comunidad desde nuevos supuestos. La cuestión es retomar el tono extático que demanda Nancy, esa figura del exceso propuesta por Bataille, y evidenciarlo en el modelo que propone Gilbert Simondon para la individuación, y Roberto Esposito para la communitas. El trabajo...

On the energy spectrum of the Bethe-Salpeter equation; Ob ehnergeticheskom spektre uravneniya Bete-Solpitera

Energy Technology Data Exchange (ETDEWEB)

Dorkin, S M [Dal` nevostochnyj Gosudarstvennyj Univ., Vladivostok (Russian Federation); Kaptar` , L P; Semikh, S S [Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Theoretical Physics

1997-12-31

The problem of calculating the energy spectrum of a two-fermion bound state within the Bethe-Salpeter formalism is discussed. An expansion of the kernel of the spinor-spinor Bethe-Salpeter equation in the ladder approximation is found in terms of a bi-orthogonal basis of the generalized Gilbert-Schmidt series for symmetric equations of the Fredholm type. According to this expansion, a new method of solving the Bethe-Salpeter equation and finding the mass spectrum is proposed. Methodological result of numerical solutions of equations with scalar interaction is presented. (author). 20 refs., 3 figs.

Descarte de peixes na pesca comercial em Tefé, médio Solimões, Amazônia Central = Discarded catches from commercial fisheries in the middle Solimões river, Central Amazon region

Directory of Open Access Journals (Sweden)

Vandick da Silva Batista

2008-01-01

Full Text Available Descartes são comuns na pesca comercial, sendo avaliados para apoiar o manejo da pesca na região. Por meio de acompanhamentos diários das pescarias da frota comercial de Tefé, foi descrito o descarte de pescado no médio Solimões. Utilizando análises de correlação e covariância, foram avaliados fatores que determinam o descarte com três modalidades distintas de pesca. Os pescadores selecionaram o pescado no momento da captura por espécie e tamanho. As espécies de pescados mais descartados foram jaraquis, tucunarés e branquinhas, porém os mais freqüentes, no descarte, foram espécies dos Siluriformes. Os apetrechos de pesca analisados apresentaram diferenças nas características de seu descarte. O descarte foi menor na enchente-cheia (5-17% da captura, conforme apetrecho que durante a vazante-seca (20-62%, conforme apetrecho. Discards are common in commercial fishery, and are evaluated in order to support fisheries management in the region. Fish discards in themiddle Solimões River were described through daily monitoring of fishing activities by the commercial fleet of the town of Tefé. By making use of analyses of correlation and covariance, determinant factors for discards in three different types of fisheries wereevaluated. The crew selected the fish at the moment of capture, by species and size. Among the most discarded fish species were jaraquis Semaprochilodus spp., tucunarés Cichla spp. and branquinhas Curimatidae; however, the most frequently discarded were Siluriform species. The fishing gear analyzed featured differences in their discarding characteristics. Discard was lower during the flood period (5-17% of catches, depending on gear than during the dry season (20-62% of catches, depending on gear.

Ten questions to Gilbert Ruelle: the wind energy, an energy for the 21. century

International Nuclear Information System (INIS)

2009-01-01

The author gives explanations and answers and comments data on issues related to wind energy. He discusses why this energy which is one of the oldest, emerges in the 21. century again, what is its share in electricity production and what it may become, how to compare KWh costs (wind and other sources), what are the other consequences of wind intermittence, whether wind energy is actually a promising way to reduce greenhouse gas emissions, where this energy is growing the fastest, what are the best wind sites, what is the potential of offshore wind facilities, what are the other limits of the wind energy development, whether wind energy has a different behaviour than other generators with respect to network disturbances, what are the selling condition, what is the role of the European Union in the development of solar energy in France

Terrestrial analogs, planetary geology, and the nature of geological reasoning

Science.gov (United States)

Baker, Victor R.

2014-05-01

Analogical reasoning is critical to planetary geology, but its role can be misconstrued by those unfamiliar with the practice of that science. The methodological importance of analogy to geology lies in the formulation of genetic hypotheses, an absolutely essential component of geological reasoning that was either ignored or denigrated by most 20th century philosophers of science, who took the theoretical/ experimental methodology of physics to be the sole model for all of scientific inquiry. Following the seminal 19th century work of Grove Karl Gilbert, an early pioneer of planetary geology, it has long been recognized that broad experience with and understanding of terrestrial geological phenomena provide geologists with their most effective resource for the invention of potentially fruitful, working hypotheses. The actions of (1) forming such hypotheses, (2) following their consequences, and (3) testing those consequences comprise integral parts of effective geological practice in regard to the understanding of planetary surfaces. Nevertheless, the logical terminology and philosophical bases for such practice will be unfamiliar to most planetary scientists, both geologists and nongeologists. The invention of geological hypotheses involves both inductive inferences of the type Gilbert termed “empiric classification” and abductive inferences of a logical form made famous by the 19th century American logician Charles Sanders Peirce. The testing and corroboration of geological hypotheses relies less on the correspondence logic of theoretical/ experimental sciences, like physics, and more on the logic of consistency, coherence, and consilience that characterizes the investigative and historical sciences of interpretation exemplified by geology.

O Behaviorismo Radical como filosofia da mente Radical Behaviorism as philosophy of mind

Directory of Open Access Journals (Sweden)

Carlos Eduardo Lopes

2003-01-01

Full Text Available O Behaviorismo Radical de B. F. Skinner é constantemente acusado de eliminar a mente de sua explicação do comportamento humano. Uma análise do livro The Concept of Mind, de Gilbert Ryle, sugere a possibilidade de defender a existência de uma mente relacional, diferente da categoria de existência da mente defendida em interpretações cartesianas (mente substancial. A análise de alguns textos de Skinner sugere que o conceito de uma mente relacional também pode ser defendido no Behaviorismo Radical. Esse fato, culminaria na possibilidade de que, além de filosofia da Ciência do Comportamento, o Behaviorismo Radical, também pode ser uma filosofia da mente, o que traria conseqüências ao estudo e à aplicação da Análise do Comportamento.B. F. Skinner's Radical Behaviorism has been repeatedly accused of eliminating the mind from its explanation of human behavior. An analysis of Gilbert Ryle's book, The Concept of Mind, suggests the possibility of defending the existence of a relational mind, different from the category of existence of mind defended in Cartesian interpretations (substantial mind. The analysis of some texts of Skinner suggests that the concept of a relational mind can also be defended in Radical Behaviorism. This fact would lead to the possibility that, beyond a philosophy of Behavior Science, Radical Behaviorism may also be a philosophy of mind, which would bring consequences to the study and application of Analysis of Behavior.

Progress on reference input parameter library for nuclear model calculations of nuclear data (III)

International Nuclear Information System (INIS)

Su Zongdi; Liu Jianfeng; Huang Zhongfu

1997-01-01

A new set of the average neutron resonance spacings D 0 and neutron strength functions S 0 for 309 nuclei were reestimated on the basis of the resolved resonance parameters reevaluated from BNL-325, ENDF/B-6, JEF-2, and JENDL-3, and the cumulative number N 0 of low low lying levels for 344 nuclei were also reevaluated by means of histograms. Three sets of level density parameters for the Gilbert-Cameron (GC) formula, back-shifted Fermi gas model(BS) and generated superfluid model (GSM) have been reesitmated by fitting the D 0 and N 0 values of CENPL.LRD-2

LAS CAPACIDADES TECNOLÓGICAS COMO BASE PARA EL DESARROLLO

OpenAIRE

Álvaro Carbajal Villaplana

2010-01-01

En este artículo interesa determinar la estructura lógica del concepto de capacidades tecnológicas para establecer las características y los componentes más relevantes, esto con la intención de proponer una definición filosófica a partir de las ideas de capacidades y funcionamientos de Amartya Sen y del concepto de disposiciones de Gilbert Ryle. Se trata de una ampliación o aplicación de esas nociones a la idea de capacidades tecnológicas con el fin de obtener dicho concepto operativo y aprop...

Tilted spin torque-driven ferromagnetic resonance in a perpendicular-analyzer magnetic trilayer

International Nuclear Information System (INIS)

Wang Rixing; He Pengbin; Liu Quanhui; Li Zaidong; Pan Anlian; Zou Bingsuo; Wang Yanguo

2010-01-01

A theoretical study is presented on the current-driven ferromagnetic resonance in the magnetic trilayers. On the basis of the Landau-Lifshitz-Gilbert-Slonczewski equation, we derive the output dc voltage for arbitrary anisotropy in the free and pinned layers by the linearization method. As an example, the resonance spectra of the tilted-polarizer and perpendicular-analyzer trilayer show that the equilibrium position, the resonant linewidth and the resonant location can be tuned by changing the magnitude and the direction of spin torque. The effective damping can be minimized through adjusting the current and the pinned-layer magnetization direction.

LIBERTARISMO & ERROR CATEGORIAL

Directory of Open Access Journals (Sweden)

Carlos G. Patarroyo G.

2009-01-01

Full Text Available En este artículo se ofrece una defensa del libertarismo frente a dos acusaciones según las cuales éste comete un error categorial. Para ello, se utiliza la filosofía de Gilbert Ryle como herramienta para explicar las razones que fundamentan estas acusaciones y para mostrar por qué, pese a que ciertas versiones del libertarismo que acuden a la causalidad de agentes o al dualismo cartesiano cometen estos errores, un libertarismo que busque en el indeterminismo fisicalista la base de la posibilidad de la libertad humana no necesariamente puede ser acusado de incurrir en ellos.

Men of physics

CERN Document Server

Seeger, Raymond J

2013-01-01

Men of Physics: Galileo Galilei, His Life and His Works deals with Galileo Galilei's radical discoveries and trail during the Inquisition. The book describes the life of Galileo and his many interests in art and music, in addition to science. Galileo is born in Pisa in 1564, and at age 25, he is appointed to the Chair of Mathematics at the University of Pisa. He writes several papers, for example, mathematical continuum as contrasted with physical atomism, and investigates the behavior of magnetic poles. He believes in William Gilbert's experiment that the earth itself is a large magnet. He c

(R)évolution américaine : Les peintres de la jeune République

OpenAIRE

Dambre, François

2009-01-01

Qu’y a-t-il de commun entre le portrait compassé de George Washington par Gilbert Stuart (George Washington, 1803) et l’image pieuse d’un Mao Zedong revue et corrigée par Andy Warhol près de deux siècles plus tard (Mao, 1973) ? Telle était la question liminaire que posait l’exposition de la Corcoran Gallery, The American Evolution : a History through Art. Délaissant la chronologie au profit d’une approche thématique et comparative, The American Evolution rassemblait près de 200 peintures, pho...

(Révolution américaine : Les peintres de la jeune République

Directory of Open Access Journals (Sweden)

François Dambre

2009-09-01

Full Text Available Qu’y a-t-il de commun entre le portrait compassé de George Washington par Gilbert Stuart (George Washington, 1803 et l’image pieuse d’un Mao Zedong revue et corrigée par Andy Warhol près de deux siècles plus tard (Mao, 1973 ? Telle était la question liminaire que posait l’exposition de la Corcoran Gallery, The American Evolution : a History through Art. Délaissant la chronologie au profit d’une approche thématique et comparative, The American Evolution rassemblait près de 200 peintures, pho...

Las Estructuras Antropológicas del Imaginario Orfico. El Cetro, La Crátera y el Niño

OpenAIRE

Martínez Villarroya, Javier

2008-01-01

[spa] Partiendo de la postmodernidad como situación, y con la pregunta filofósica de fondo sobre la universalidad de algunos símbolos, la investigación estudia el fondo mítico del pensamiento arcaico y clásico griego a partir del corpus de textos órficos. Para ello aplica a dichos textos el método de convergencia expuesto por Gilbert Durand en Las Estructuras Antropológicas del Imaginario, proponiendo una taxonomía simbólica concreta que permite dotar de sentido pasajes órficos oscuros. En la...

Estructuras Antropológicas del Imaginario Orfico. El Cetro, La Crátera y el Niño, Las

OpenAIRE

Martínez Villarroya, Javier

2008-01-01

Partiendo de la postmodernidad como situación, y con la pregunta filofósica de fondo sobre la universalidad de algunos símbolos, la investigación estudia el fondo mítico del pensamiento arcaico y clásico griego a partir del corpus de textos órficos. Para ello aplica a dichos textos el método de convergencia expuesto por Gilbert Durand en Las Estructuras Antropológicas del Imaginario, proponiendo una taxonomía simbólica concreta que permite dotar de sentido pasajes órficos oscuros. En la prim...

CULTURE AND TECHNOLOGY: AUTOMATION IN THE CREATIVE PROCESSES OF NARRATIVE

Directory of Open Access Journals (Sweden)

Fernando Fogliano

2013-12-01

Full Text Available The objective here is to think on the problem raised by the progressively opaque presence of technology in the contemporary artistic production. Automation is the most evident aspect of technology of devices used for production, post-production and dissemination of this cultural activity. Along the text the philosophers Vilém Flusser and Gilbert Simon are put in confrontation so that a more profound insight can be obtained. Language is considered here as the integrative factor in the search for a new convergent conceptual scenario that enable us understand the consequences of the technological convergence

O imaginário do herói na trilogia Mass Effect: estudo sobre o mito e o imaginário no processo criativo do herói em jogos digitais

OpenAIRE

Silva, Thiago Tadeu R.

2014-01-01

O presente trabalho tem como objetivo pesquisar o imaginário do herói em jogos digitais sendo que para isso, temos como nosso objeto de pesquisa principal a trilogia de jogos digitais Mass Effect. Para tal, buscamos de início estabelecer um diálogo com teorias fundamentais da antropologia estrutural do imaginário do teórico francês Gilbert Durand, em paralelo com estudos sobre o mito do herói e da narratologia. Consideramos as características semióticas da mídia que pesquisamos, o videogame, ...

Anthropology and the Theory of Drama

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Radmila Nastić

2016-02-01

Full Text Available The paper is an attempt at a systematic account of the history of influences between anthropology and the theory of drama in the twentieth century. The starting point is the definition of drama as a mimesis of the movement towards self-knowledge as rebirth. It is described as a variation of the original spring dance in honour of the regeneration of life represented in the figure of the twice-born Dionysus. Anthropologists whose contribution to the theory of drama has been acknowledged are Jane Harrison, Gilbert Murray, Arnold Van Genep, Joseph Campbell and Victor Turner.

Accurate evaluation of exchange fields in finite element micromagnetic solvers

Science.gov (United States)

Chang, R.; Escobar, M. A.; Li, S.; Lubarda, M. V.; Lomakin, V.

2012-04-01

Quadratic basis functions (QBFs) are implemented for solving the Landau-Lifshitz-Gilbert equation via the finite element method. This involves the introduction of a set of special testing functions compatible with the QBFs for evaluating the Laplacian operator. The results by using QBFs are significantly more accurate than those via linear basis functions. QBF approach leads to significantly more accurate results than conventionally used approaches based on linear basis functions. Importantly QBFs allow reducing the error of computing the exchange field by increasing the mesh density for structured and unstructured meshes. Numerical examples demonstrate the feasibility of the method.

Entanglement manipulation by a magnetic pulse in Gd3N@C80 endohedral metallofullerenes on a Cu(0 0 1) surface

Science.gov (United States)

Farberovich, Oleg V.; Gritzaenko, Vyacheslav S.

2018-04-01

In this paper we present the results of theoretical calculation of entanglement within a spin structure of Gd3N@C80 under the influence of rectangular impulses. Research is conducted using general spin Hamiltonian within SSNQ (spin system of N-qubits). The calculations of entanglement with various impulses are performed using the time-dependent Landau-Lifshitz-Gilbert equation with spin-spin correlation function. We show that long rectangular impulse (t = 850 ps) can be used for sustaining entanglement value. This allows us to offer a new algorithm which can be used to solve the problem of decoherence in the logical scheme optimization.

Sequential hepatobiliary scintigraphy of the patients with constitutional jaundice, ICG excretory defect disease and hepatocellular carcinoma with 99mTc-PI, 99mTc-HIDA and 99mTc-EHIDA

International Nuclear Information System (INIS)

Mitani, Tsuyoshi

1987-01-01

Sequential 2 min scintiphotos were obtained with a scintilation camera after intravenous injection of 3 mCi of 99m Tc-HIDA or 99m Tc-PI. Digital matrix images were simultaneously recorded with computer. Sequential samples for the blood clearance of 99m Tc-HIDA or 99m Tc-PI were obtained for 120 min following injection to the patient of constitutional hyperbilirubinemia and ICG excretory defect disease. In Dubin-Johnson syndrome, the hepatic uptake of 99m Tc-HIDA was faster or normal but the excretion was extremely slower than in normal cases. Both hepatic uptake and excretion of 99m Tc-PI were almost normal. In Rotor's disease, hepatic uptake of 99m Tc-HIDA or 99m Tc-PI was very poor, showing almost no hepatic images in all time. In Gilbert's disease and ICG excretory defect disease, hepatic uptake and excretion of 99m Tc-HIDA or 99m Tc-PI were within normal limit. From these results, Dubin-Johnson syndrome, Rotor's disease and Gilbert's disease show the different patterns between hepatic uptake and excretion of 99m Tc-HIDA and 99m Tc-PI hepatobiliary scintigraphy and these patterns contribute to the differential diagnosis of constitutional jaundice. The usefulness of hepatobiliary imaging with 99m Tc-EHIDA in diagnosis of hepatocellular carcinoma was studied in 15 patients with histologically verified HCC. In 15 patients, 3 patients (20 %) showed increased radioactivity with 99m Tc-EHIDA image, where liver scan with 99m Tc-Sn colloid showed filling defect. These results indicate that use of 99m Tc-EHIDA scan and 67 Ga-citrate imaging is useful for positive visualization of HCC. (author)

Problemas fundamentales de la ética en Gilbert Hottois; alacances del paradigma bioético

OpenAIRE

Célida Godina

2007-01-01

En este escrito expongo la ética de G. Hottois y las correspondientes tres vías que propone: hay que hacer todo lo que es posible hacer; no hay que hacer todo lo que es posible hacer; o bien tomar una vía intermedia. Este filósofo observa que la técnica ha extendido de forma extraordinaria nuestro campo de acción y con ello la pregunta ética se ha ampliado también. De ahí que sea indispensable tomar conciencia de cuáles son las consecuencias, incluso las que no podemos ver en nuestro horizont...

Nonlocal torque operators in ab initio theory of the Gilbert damping in random ferromagnetic alloys

Czech Academy of Sciences Publication Activity Database

Turek, Ilja; Kudrnovský, Josef; Drchal, Václav

2015-01-01

Roč. 92, č. 21 (2015), 214407-1-214407-11 ISSN 1098-0121 R&D Projects: GA ČR GA15-13436S Institutional support: RVO:68081723 ; RVO:68378271 Keywords : magnetic damping * spin torque Subject RIV: BM - Solid Matter Physics ; Magnetism Impact factor: 3.736, year: 2014

Geomagnetic polarity transitions of the Gilbert and Gauss chrons recorded in marine marls from Sicily

NARCIS (Netherlands)

van Hoof, A.A.M.

1993-01-01

One of the most fascinating phenomena of geophysics is the fact that in the geological past the Earth's magnetic field has frequently reversed its polarity. These polarity transitions are accurately established during at least the past 165 Myr - from their recording in the ocean floor: the marine

Geomagnetic polarity transitions of the Gilbert and Gauss chrons recorded in marine marls from Sicily

NARCIS (Netherlands)

Hoof, A.A.M. van

1993-01-01

One of the most fascinating phenomena of geophysics is the fact that in the geological past the Earth's magnetic field has frequently reversed its polarity. These polarity transitions are accurately established during at least the past 165 Myr - from their recording in the ocean floor: the

78 FR 52172 - Don W. Gilbert Hydro Power, LLC; Notice of Availability of Environmental Assessment

Science.gov (United States)

2013-08-22

... character of the area would reduce visual effects. Avoiding reflective materials and highly-contrasting... stated that the proposed project would not affect any of its trust species (email communication on March... an average low of 10.2 degrees Fahrenheit in January to an [[Page 52180

Role of phase breaking processes on resonant spin transfer torque nano-oscillators

Science.gov (United States)

Sharma, Abhishek; Tulapurkar, Ashwin A.; Muralidharan, Bhaskaran

2018-05-01

Spin transfer torque nano-oscillators (STNOs) based on magnetoresistance and spin transfer torque effects find potential applications in miniaturized wireless communication devices. Using the non-coherent non-equilibrium Green's function spin transport formalism self-consistently coupled with the stochastic Landau-Lifshitz-Gilbert-Slonczewski's equation and the Poisson's equation, we elucidate the role of elastic phase breaking on the proposed STNO design featuring double barrier resonant tunneling. Demonstrating the immunity of our proposed design, we predict that despite the presence of elastic dephasing, the resonant tunneling magnetic tunnel junction structures facilitate oscillator designs featuring a large enhancement in microwave power up to 8μW delivered to a 50Ω load.

Depletion of petroleum reserves and oil price trends

International Nuclear Information System (INIS)

Babusiaux, D.; Bauquis, P.R.

2007-11-01

This document is the report of the 'Petroleum' working group from the French Academy of Technology, coordinated by the authors in the framework of the Energy and Climate Change Commission chaired by Gilbert Ruelle. Firstly, it present a synthesis of the different points of view about reserves and the peak of world oil production (optimists, pessimists and official organizations). Secondly, it analyzes the mechanisms of oil price formation focusing on the long term without addressing the question of short term market behaviour. The last section is devoted to possible scenarios of the evolution of production profiles and prices in the medium and long term. (authors)

Critical analysis and remedy of switching failures in straintronic logic using Bennett clocking in the presence of thermal fluctuations

Energy Technology Data Exchange (ETDEWEB)

Roy, Kuntal, E-mail: royk@purdue.edu [School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

2014-01-06

Straintronic logic is a promising platform for beyond Moore's law computing. Using Bennett clocking mechanism, information can propagate through an array of strain-mediated multiferroic nanomagnets, exploiting the dipolar coupling between the magnets without having to physically interconnect them. Here, we perform a critical analysis of switching failures, i.e., error in information propagation due to thermal fluctuations through a chain of such straintronic devices. We solved stochastic Landau-Lifshitz-Gilbert equation considering room-temperature thermal perturbations and show that magnetization switching may fail due to inherent magnetization dynamics accompanied by thermally broadened switching delay distribution. Avenues available to circumvent such issue are proposed.

Pairing correction of particle-hole state densities for two kinds of Fermions

International Nuclear Information System (INIS)

Fu, C.Y.

1985-01-01

Pairing corrections in particle-hole (exciton) state-density formulas used in precompound nuclear reaction theories are, strictly speaking, dependent on the nuclear excitation energy U and the exciton number n. A general formula for (U,n)-dependent pairing corrections has been derived in an earlier paper for exciton state-density formulas for one kind of Fermion. In the present paper, a similar derivation is made for two kinds of Fermions. It is shown that the constant-pairing-energy correction used in standard level-density formulas, such as U 0 in Gilbert and Cameron, is a limiting case of the present general (U,n)-dependent results

Africanidades e educação: ancestralidade, identidade e oralidade no pensamento de Kabengele Munanga

OpenAIRE

Julvan Moreira de Oliveira

2010-01-01

O objetivo deste trabalho foi analisar a contribuição do pensamento de Kabengele Munanga para o ideário pedagógico brasileiro, tendo como base epistemológica a arquetipologia do imaginário de Gilbert Durand e sua heurística mitodológica, a qual engloba a mitocrítica e a mitanálise. A pesquisa indicou que o mitema, fio condutor presente em toda obra de Munanga, é o ser, ou seja, é a questão da identidade e o processo de interação dialógica entre o eu e o outro, compreendido como uma relação de...

Biological effects of DNA repair, including mutagenesis. Progress report, June 15, 1980-May 1, 1981

International Nuclear Information System (INIS)

Hutchinson, F.

1981-01-01

A mutagen of interest is used to create mutations in the cI gene of lambda phage, producing a clear plaque phenotype. Genetic mapping is used to determine which restriction fragment in the gene contains the mutation. The fragment is then isolated and sequenced by the Maxam-Gilbert technique. Thus, the actual changes in base sequence produced by the action of the mutagen may be determined and also the base sequence surrounding the mutation. Such studies will be useful in understanding the mechanisms by which a mutation occurs, since any proposed mechanism must be consistent with the observations. The results also give information on the specificity of mutagens

Informatisation de la gestion des compétences : évaluation de la démarche dans une collectivité territoriale

OpenAIRE

Bachelet, Catherine; Galey, Béatrice

2013-01-01

Notion répandue mais difficile à cerner, la gestion des compétences peut être définie comme une instrumentation sur laquelle les acteurs professionnels de la GRH se fondent pour instruire leurs décisions de gestion (Gilbert, 2003). Constituée d'un « ensemble de pratiques visant à acquérir, stimuler et réguler les compétences des salariés » (Defélix et Retour, 2003), elle permet d'améliorer l'adéquation entre les compétences nécessaires et les compétences disponibles, pour optimiser la compéti...

Verbal understanding: Integrating the conceptual analyses of Skinner, Ryle, and Wittgenstein.

Science.gov (United States)

Schoneberger, T

1991-01-01

Gilbert Ryle's (1949) and Ludwig Wittgenstein's (1953; 1958; 1974/78) conceptual analyses of verbal understanding are presented. For Ryle, the term understanding signifies simultaneously an acquired disposition and a behavioral episode. For Wittgenstein, it signifies simultaneously a skill and a criterial behavior. Both argued that episodes of understanding comprise heterogenious classes of behaviors, and that each member of such a class is neither a necessary nor a sufficient condition of understanding. Next, an approach integrating the analyses of Ryle and Wittgenstein with that of Skinner is presented. Lastly, it is argued that this integrated analysis adequately counters Parrott's (1984) argument that understanding, for Skinner, is potential behavior and not an event.

Spin torque on the surface of graphene in the presence of spin orbit splitting

Directory of Open Access Journals (Sweden)

Ji Chen

2013-06-01

Full Text Available We study theoretically the spin transfer torque of a ferromagnetic layer coupled to (deposited onto a graphene surface in the presence of the Rashba spin orbit coupling (RSOC. We show that the RSOC induces an effective magnetic field, which will result in the spin precession of conduction electrons. We derive correspondingly the generalized Landau-Lifshitz-Gilbert (LLG equation, which describes the precessional motion of local magnetization under the influence of the spin orbit effect. Our theoretical estimate indicates that the spin orbit spin torque may have significant effect on the magnetization dynamics of the ferromagnetic layer coupled to the graphene surface.

Report on the lands of the arid region of the United States with a more detailed account of the land of Utah with maps

Science.gov (United States)

Powell, John Wesley

1879-01-01

A report from Maj. J. W.Powell, geologist in charge of the United States Geographical and Geological Survey of the Rocky Mountain Region, upon the lands of the Arid Region of the United States, setting forth the extent of said region, and making suggestions as to the conditions under which the lands embraced within its limit may be rendered available for agricultural and grazing purposes. With the report is transmitted a statement of the rainfall of the western portion of the United States, with reports upon the subject of irrigation by Capt. C. E. Button, U. S. A., Prof. A. H. Thompson, and Mr. G. K. Gilbert.

The Cult of 'Krazy Kat': Memory and Recollection in the Age of Mechanical Reproduction

Directory of Open Access Journals (Sweden)

Aaron Humphrey

2017-06-01

Full Text Available George Herriman’s comic strip 'Krazy Kat' has been discussed in mythic terms for more than half a century. This article argues that much of this ‘mythology’ has not been founded on the material itself, but rather on memories and recollections of readers and critics. Using Walter Benjamin’s notions of cult value and exhibition value, this article investigates the historical circumstances that shaped the most prominent of these recollections to show how writers like Gilbert Seldes and E. E. Cummings shaped the myth of 'Krazy Kat' to create an ‘aura’ of genius around a work that was largely inaccessible to most readers.

Investigation of the temperature-dependence of ferromagnetic resonance and spin waves in Co{sub 2}FeAl{sub 0.5}Si{sub 0.5}

Energy Technology Data Exchange (ETDEWEB)

Loong, Li Ming; Kwon, Jae Hyun; Deorani, Praveen; Yang, Hyunsoo, E-mail: eleyang@nus.edu.sg [Department of Electrical and Computer Engineering, National University of Singapore, 117576 Singapore (Singapore); Tung Yu, Chris Nga [Department of Physics, The University of York, York YO10 5DD (United Kingdom); Hirohata, Atsufumi, E-mail: atsufumi.hirohata@york.ac.uk [Department of Electronics, The University of York, York YO10 5DD (United Kingdom)

2014-06-09

Co{sub 2}FeAl{sub 0.5}Si{sub 0.5} (CFAS) is a Heusler compound that is of interest for spintronics applications, due to its high spin polarization and relatively low Gilbert damping constant. In this study, the behavior of ferromagnetic resonance as a function of temperature was investigated in CFAS, yielding a decreasing trend of damping constant as the temperature was increased from 13 to 300 K. Furthermore, we studied spin waves in CFAS using both frequency domain and time domain techniques, obtaining group velocities and attenuation lengths as high as 26 km/s and 23.3 μm, respectively, at room temperature.

Duplicação [TA] na região promotora do gene UGT1A1 : revisão sistemática e meta - análise

OpenAIRE

Monteiro, Susana Cristina Fidalgo

2012-01-01

O Síndroma de Gilbert (SG) é uma entidade clínica comum caracterizada por uma forma benigna de hiperbilirrubinemia não conjugada, na ausência de disfunção hepática e de hemólise. O seu diagnóstico, inicialmente de carácter presuntivo, passou a dispor de caracterização molecular quando, em 1995, foram descritas as primeiras mutações no gene UridinoDifosfato-glucuronosil transferase-1 (UGT1A1). Em particular, uma duplicação de 2 nucleotídeos [TA] na região promotora do gene, que tem vindo a rev...

Lake size and fish diversity in southern Brazil coastal lagoons

Directory of Open Access Journals (Sweden)

Lucia Ribeiro Rodrigues

2015-10-01

Full Text Available The coastal plain of Rio Grande do Sul, southern Brazil, presents a series of shallow lagoons with diverse size and morphology. The objective of this study is to determine whether the size of the lagoon is an effective factor for structuring fish diversity. In this regard, nine lagoons with distinct areas were sampled: three with an area up to 40 hectares, three with area between 40 and 80 hectares, and three with an area of over 80 hectares. Each lagoon was sampled once on the littoral and pelagic zones. At each point, fish were captured through a set of gill nets with different mesh sizes. Captured specimens were identified, quantified and evaluated for weight and length. A total of 24 fish species belonging to 10 families was obtained, with Characidae presenting the highest species richness. Cyanocharax alburnus was the only species that occurred in all lagoons. Cyphocharax voga, Astyanax eigenmmaniorum, Oligosarcus jenynsii and O. robustus were also frequent species, present in most of the sampled lagoons. Lycengraulis grossidens was captured in just two lagoons with increased conductivity. The community structure showed the highest species richness in lakes with an area over 40 ha, however the highest mean diversity values were observed in ponds up to 40 ha. Cluster Analysis yielded the formation of two groups: a group formed by just one lagoon and a second one cluster grouping all the other lagoons. This pattern may be associated with the presence of Lycengraulis grossidens as a dominant species in this lagoon clustered apart. The results indicate that lagoons with up to 40 ha present greater homogeneity on the species composition and higher average values of diversity; while intermediate ponds (between 40 and 80 ha have lower average diversity for the fish fauna due to increased heterogeneity in species abundance.

Distribution of fish assemblages in Lajes Reservoir, Rio de Janeiro, Brazil

Directory of Open Access Journals (Sweden)

F. G. ARAÚJO

Full Text Available Spatial distribution of fish assemblages in Lajes Reservoir, a 30 km² impoundment in Rio de Janeiro State (Lat. 22º42'-22º50'S; Long. 43º53'-44º05'W was assessed to detect patterns of available habitat use by the fish. A standardized monthly sampling program was carried out from January to December 1994 at three zones of the reservoir (upper, near tributary mouths; middle; and lower, near the dam. Fishes were caught by gillnets, (50 m long, 3 m height, with mesh ranging having from 25 to 45 mm between knots, submerged during 12 hours. A total of 5,089 fishes were collected comprising 15 species, 14 genera and 9 families. Loricariichthys spixii, Astyanax bimaculatus, Parauchenipterus striatulus, Astyanax fasciatus parahybae, Oligosarchus hepsetus, Rhamdia parahybae, Hypostomus affinis, and Geophagus brasiliensis were the most abundant species, each contributing above 1% of the total number. Loricariichthys spixii was the dominant species, contributing over 80% of total number and biomass. Fish abundance, number of species, and biomass were higher in the upper zone, but differences from this overall pattern were shown by some species. Loricariichthys spixii and Rhamdia parahybae were more abundant in the upper zone, while all other species showed no differences in their abundance among the zones. Seasonal environmental variables of temperature, pH, transparency, and water level did not show a clear association with fish occurrence. Most fish used the different zones of the reservoir with no clear sign of spatial separation. High dominance of L. spixii, reduced abundance of reolific species Leporinus copelandii and Cyphocharax gilberti, and presence of introduced species such as Cichla monoculus and Tilapia rendalli are indications of antropic effects in the fish community.

Downstream lightening and upward heavying, sorting of sediments of uniform grain size but differing in density

Science.gov (United States)

Viparelli, E.; Solari, L.; Hill, K. M.

2014-12-01

Downstream fining, i.e. the tendency for a gradual decrease in grain size in the downstream direction, has been observed and studied in alluvial rivers and in laboratory flumes. Laboratory experiments and field observations show that the vertical sorting pattern over a small Gilbert delta front is characterized by an upward fining profile, with preferential deposition of coarse particles in the lowermost part of the deposit. The present work is an attempt to answer the following questions. Are there analogous sorting patterns in mixtures of sediment particles having the same grain size but differing density? To investigate this, we performed experiments at the Hydrosystems Laboratory at the University of Illinois at Urbana-Champaign. During the experiments a Gilbert delta formed and migrated downstream allowing for the study of transport and sorting processes on the surface and within the deposit. The experimental results show 1) preferential deposition of heavy particles in the upstream part of the deposit associated with a pattern of "downstream lightening"; and 2) a vertical sorting pattern over the delta front characterized by a pattern of "upward heavying" with preferential deposition of light particles in the lowermost part of the deposit. The observed downstream lightening is analogous of the downstream fining with preferential deposition of heavy (coarse) particles in the upstream part of the deposit. The observed upward heavying was unexpected because, considering the particle mass alone, the heavy (coarse) particles should have been preferentially deposited in the lowermost part of the deposit. Further, the application of classical fractional bedload transport relations suggests that in the case of mixtures of particles of uniform size and different densities equal mobility is not approached. We hypothesize that granular physics mechanisms traditionally associated with sheared granular flows may be responsible for the observed upward heavying and for the

Bilirubin Decreases Macrophage Cholesterol Efflux and ATP-Binding Cassette Transporter A1 Protein Expression.

Science.gov (United States)

Wang, Dongdong; Tosevska, Anela; Heiß, Elke H; Ladurner, Angela; Mölzer, Christine; Wallner, Marlies; Bulmer, Andrew; Wagner, Karl-Heinz; Dirsch, Verena M; Atanasov, Atanas G

2017-04-28

Mild but chronically elevated circulating unconjugated bilirubin is associated with reduced total and low-density lipoprotein cholesterol concentration, which is associated with reduced cardiovascular disease risk. We aimed to investigate whether unconjugated bilirubin influences macrophage cholesterol efflux, as a potential mechanism for the altered circulating lipoprotein concentrations observed in hyperbilirubinemic individuals. Cholesterol efflux from THP-1 macrophages was assessed using plasma obtained from normo- and hyperbilirubinemic (Gilbert syndrome) humans (n=60 per group) or (heterozygote/homozygote Gunn) rats (n=20 per group) as an acceptor. Hyperbilirubinemic plasma from patients with Gilbert syndrome and Gunn rats induced significantly reduced cholesterol efflux compared with normobilirubinemic plasma. Unconjugated bilirubin (3-17.1 μmol/L) exogenously added to plasma- or apolipoprotein A1-supplemented media also decreased macrophage cholesterol efflux in a concentration- and time-dependent manner. We also showed reduced protein expression of the ATP-binding cassette transporter A1 (ABCA1), a transmembrane cholesterol transporter involved in apolipoprotein A1-mediated cholesterol efflux, in THP-1 macrophages treated with unconjugated bilirubin and in peripheral blood mononuclear cells obtained from hyperbilirubinemic individuals. Furthermore, we demonstrated that bilirubin accelerates the degradation rate of the ABCA1 protein in THP-1 macrophages. Cholesterol efflux from THP-1 macrophages is decreased in the presence of plasma obtained from humans and rats with mild hyperbilirubinemia. A direct effect of unconjugated bilirubin on cholesterol efflux was demonstrated and is associated with decreased ABCA1 protein expression. These data improve our knowledge concerning bilirubin's impact on cholesterol transport and represent an important advancement in our understanding of bilirubin's role in cardiovascular disease. © 2017 The Authors. Published on

Organizational intellectual capital and the role of the nurse manager: A proposed conceptual model.

Science.gov (United States)

Gilbert, Jason H; Von Ah, Diane; Broome, Marion E

Nurse managers must leverage both the human capital and social capital of the teams they lead in order to produce quality outcomes. Little is known about the relationship between human capital and social capital and how these concepts may work together to produce organizational outcomes through leadership of nurses. The purpose of this article was to explore the concepts of human capital and social capital as they relate to nursing leadership in health care organizations. Specific aims included (a) to synthesize the literature related to human capital and social capital in leadership, (b) to refine the conceptual definitions of human capital and social capital with associated conceptual antecedents and consequences, and (c) to propose a synthesized conceptual model guiding further empirical research of social capital and human capital in nursing leadership. A systematic integrative review of leadership literature using criteria informed by Whittemore and Knafl (2005) was completed. CINAHL Plus with Full Text, Academic Search Premier, Business Source Premier, Health Business FullTEXT, MEDLINE, and PsychINFO databases were searched for the years 1995 to 2016 using terms "human capital," "social capital," and "management." Analysis of conceptual definitions, theoretical and conceptual models, antecedents and consequences, propositions or hypotheses, and empirical support for 37 articles fitting review criteria resulted in the synthesis of the proposed Gilbert Conceptual Model of Organizational Intellectual Capital. The Gilbert Conceptual Model of Organizational Intellectual Capital advances the propositions of human capital theory and social capital theory and is the first model to conceptualize the direct and moderating effects that nurse leaders have on the human capital and social capital of the teams they lead. This model provides a framework for further empirical study and may have implications for practice, organizational policy, and education related to nursing

Simulation of magnetic hysteresis loops and magnetic Barkhausen noise of α-iron containing nonmagnetic particles

International Nuclear Information System (INIS)

Li, Yi; Li, Qiulin; Liu, Wei; Xu, Ben; Hu, Shenyang; Li, Yulan

2015-01-01

The magnetic hysteresis loops and Barkhausen noise of a single α-iron with nonmagnetic particles are simulated to investigate into the magnetic hardening due to Cu-rich precipitates in irradiated reactor pressure vessel (RPV) steels. Phase field method basing Landau-Lifshitz-Gilbert (LLG) equation is used for this simulation. The results show that the presence of the nonmagnetic particle could result in magnetic hardening by making the nucleation of reversed domains difficult. The coercive field is found to increase, while the intensity of Barkhausen noise voltage is decreased when the nonmagnetic particle is introduced. Simulations demonstrate the impact of nucleation field of reversed domains on the magnetization reversal behavior and the magnetic properties

Consistent energy barrier distributions in magnetic particle chains

International Nuclear Information System (INIS)

Laslett, O.; Ruta, S.; Chantrell, R.W.; Barker, J.; Friedman, G.; Hovorka, O.

2016-01-01

We investigate long-time thermal activation behaviour in magnetic particle chains of variable length. Chains are modelled as Stoner–Wohlfarth particles coupled by dipolar interactions. Thermal activation is described as a hopping process over a multidimensional energy landscape using the discrete orientation model limit of the Landau–Lifshitz–Gilbert dynamics. The underlying master equation is solved by diagonalising the associated transition matrix, which allows the evaluation of distributions of time scales of intrinsic thermal activation modes and their energy representation. It is shown that as a result of the interaction dependence of these distributions, increasing the particle chain length can lead to acceleration or deceleration of the overall relaxation process depending on the initialisation procedure.

Self-consistent mean field theory studies of the thermodynamics and quantum spin dynamics of magnetic Skyrmions.

Science.gov (United States)

Wieser, R

2017-05-04

A self-consistent mean field theory is introduced and used to investigate the thermodynamics and spin dynamics of an S  =  1 quantum spin system with a magnetic Skyrmion. The temperature dependence of the Skyrmion profile as well as the phase diagram are calculated. In addition, the spin dynamics of a magnetic Skyrmion is described by solving the time dependent Schrödinger equation with additional damping term. The Skyrmion annihilation process driven by an electric field is used to compare the trajectories of the quantum mechanical simulation with a semi-classical description for the spin expectation values using a differential equation similar to the classical Landau-Lifshitz-Gilbert equation.

Control of the magnetic in-plane anisotropy in off-stoichiometric NiMnSb

International Nuclear Information System (INIS)

Gerhard, F.; Schumacher, C.; Gould, C.; Molenkamp, L. W.

2014-01-01

NiMnSb is a ferromagnetic half-metal which, because of its rich anisotropy and very low Gilbert damping, is a promising candidate for applications in information technologies. We have investigated the in-plane anisotropy properties of thin, molecular beam epitaxy-grown NiMnSb films as a function of their Mn concentration. Using ferromagnetic resonance to determine the uniaxial and four-fold anisotropy fields, (2K U )/(M s ) and (2K 1 )/(M s ) , we find that a variation in composition can change the strength of the four-fold anisotropy by more than an order of magnitude and cause a complete 90° rotation of the uniaxial anisotropy. This provides valuable flexibility in designing new device geometries

Final Report - BRER Core Support

International Nuclear Information System (INIS)

Evan B. Douple

2007-01-01

This contract provided core support for activities of the advisory committee of experts comprising the Board on Radiation Effects Research (BRER), in The National Academies Division on Earth and Life Studies. That committee met two times during the funding period. The committee members provided oversight and advice regarding ongoing BRER projects and also assisted in the identification of potential committee members for new studies and the development of proposals for projects in the radiation sciences worthy for future study. In addition, funding provided support for the planning, advertisement, and invited speakers travel-expense reimbursement for the Third and Fourth Gilbert W. Beebe Symposia held at The National Academies on December 1, 2004 and on November 30, 2005, respectively

Adaptive Injection-locking Oscillator Array for RF Spectrum Analysis

International Nuclear Information System (INIS)

Leung, Daniel

2011-01-01

A highly parallel radio frequency receiver using an array of injection-locking oscillators for on-chip, rapid estimation of signal amplitudes and frequencies is considered. The oscillators are tuned to different natural frequencies, and variable gain amplifiers are used to provide negative feedback to adapt the locking band-width with the input signal to yield a combined measure of input signal amplitude and frequency detuning. To further this effort, an array of 16 two-stage differential ring oscillators and 16 Gilbert-cell mixers is designed for 40-400 MHz operation. The injection-locking oscillator array is assembled on a custom printed-circuit board. Control and calibration is achieved by on-board microcontroller.

Comparison of field swept ferromagnetic resonance methods - A case study using Ni-Mn-Sn films

Science.gov (United States)

Modak, R.; Samantaray, B.; Mandal, P.; Srinivasu, V. V.; Srinivasan, A.

2018-05-01

Ferromagnetic resonance spectroscopy is used to understand the magnetic behavior of Ni-Mn-Sn Heusler alloy film. Two popular experimental methods available for recording FMR spectra are presented here. In plane angular (φH) variation of magnetic relaxation is used to evaluate the in plane anisotropy (Ku) of the film. The out of plane (θH) variation of FMR spectra has been numerically analyzed to extract the Gilbert damping coefficient, effective magnetization and perpendicular magnetic anisotropy (K1). Magnetic homogeneity of the film had also been evaluated in terms of 2-magnon contribution from FMR linewidth. The advantage and limitations of these two popular FMR techniques are discussed on the basis of the results obtained in this comparative study.

Annealing effects on the microwave linewidth broadening of FeCuNbSiB ferromagnetic films

Energy Technology Data Exchange (ETDEWEB)

Alves, M. J. P.; Gonzalez-Chavez, D. E.; Sommer, R. L. [Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, Urca, 22290-180 Rio de Janeiro, RJ (Brazil); Bohn, F. [Departamento de Física Teórica e Experimental, Universidade Federal do Rio Grande do Norte, 59078-900 Natal, RN (Brazil)

2015-03-28

We systematically investigate the annealing effects on the microwave linewidth broadening of FeCuNbSiB ferromagnetic films with thickness of 100 nm. We correlate the non-uniform residual stress obtained from grazing incidence x-ray diffraction measurements with the ferromagnetic resonance (FMR) linewidth due to effective field inhomogeneities measured from broadband ferromagnetic resonance absorption measurements. We also estimate the annealing temperature effect on the Gilbert and two-magnon scattering contributions to the total ferromagnetic resonance FMR linewidth. We show that the effective field inhomogeneities constitute the main contribution to the microwave linewidth, while this contribution is related to the non-uniform residual stress in the films which is reduced by thermal annealing.

Detection limits for radioanalytical counting techniques

International Nuclear Information System (INIS)

Hartwell, J.K.

1975-06-01

In low-level radioanalysis it is usually necessary to test the sample net counts against some ''Critical Level'' in order to determine if a given result indicates detection. This is an interpretive review of the work by Nicholson (1963), Currie (1968) and Gilbert (1974). Nicholson's evaluation of three different computational formulas for estimation of the ''Critical Level'' is discussed. The details of Nicholson's evaluation are presented along with a basic discussion of the testing procedures used. Recommendations are presented for calculation of confidence intervals, for reporting of analytical results, and for extension of the derived formula to more complex cases such as multiple background counts, multiple use of a single background count, and gamma spectrometric analysis

Anomalous feedback and negative domain wall resistance

International Nuclear Information System (INIS)

Cheng, Ran; Xiao, Di; Zhu, Jian-Gang

2016-01-01

Magnetic induction can be regarded as a negative feedback effect, where the motive-force opposes the change of magnetic flux that generates the motive-force. In artificial electromagnetics emerging from spintronics, however, this is not necessarily the case. By studying the current-induced domain wall dynamics in a cylindrical nanowire, we show that the spin motive-force exerting on electrons can either oppose or support the applied current that drives the domain wall. The switching into the anomalous feedback regime occurs when the strength of the dissipative torque β is about twice the value of the Gilbert damping constant α . The anomalous feedback manifests as a negative domain wall resistance, which has an analogy with the water turbine. (paper)

An alternative method for processing northern blots after capillary transfer.

Science.gov (United States)

Nilsen, Timothy W

2015-03-02

Different laboratories use different methods for the prehybridization, hybridization, and washing steps of the northern blotting procedure. In this protocol, a northern blot is pretreated with Church and Gilbert hybridization buffer to block nonspecific probe-binding sites. The immobilized RNA is then hybridized to a DNA probe specific for the RNA of interest. Finally, the membrane is washed and subjected to autoradiography or phosphorimaging. The solutions and conditions described here may be ideal for those who prefer to use fewer ingredients in their solutions. This protocol is designed to achieve the same goals as other northern blotting approaches. It minimizes background (nonspecific adherence of probe to membrane and nonspecific hybridization) and maximizes specific hybridization to RNAs immobilized on a membrane. © 2015 Cold Spring Harbor Laboratory Press.

Magnetization process of heat assisted magnetic recording by micro-magnetic simulation

International Nuclear Information System (INIS)

Shiiki, Kazuo; Motojima, Hisanori

2010-01-01

Magnetization reversal in a uniform magnetic field and one bit recording process by a thin film head in the heat assisted magnetic recording system of TbFeCo medium are studied by using the micro-magnetic simulation and the heat equation. The Landau-Lifsitz-Gilbert equation is solved for magnetic parameters at temperatures as the time goes by. It is found that magnetization proceeds as a progressive wave, although this behaviour may not limit the recording speed. The recording bit is expanded by the thermal fluctuation. The expansion can be suppressed as the medium thickness increases, because the thermal fluctuation is small in the thick medium. So the control of the medium thickness is important very much to achieve a high-density heat-assisted recording.

The molecular basis of jaundice: An old symptom revisited.

Science.gov (United States)

Gazzin, Silvia; Masutti, Flora; Vitek, Libor; Tiribelli, Claudio

2017-08-01

Increased serum bilirubin level is a widely used diagnostic marker for hepatic illnesses. Nevertheless, mild elevation of unconjugated serum bilirubin (such as in Gilbert syndrome) has been recently demonstrated to correlate with low risk of chronic inflammatory and/or oxidative stress-mediated diseases. In accord, a low serum bilirubin level has emerged as an important predisposing factor or a biomarker of these pathologic conditions including cardiovascular, tumour, and possibly neurodegenerative diseases. Bilirubin possesses multiple biological actions with interaction in a complex network of enzymatic and signalling pathways. The fact that the liver is the main organ controlling the bioavailability of bilirubin emphasizes the central role of this organ in human health. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

[Neonatal hyperbilirubinemia and molecular mechanisms of jaundice].

Science.gov (United States)

Jirsa, M; Sticová, E

2013-07-01

The introductory summarises the classical path of heme degradation and classification of jaundice. Subsequently, a description of neonatal types of jaundice is given, known as Crigler Najjar, Gilberts, DubinJohnson and Rotor syndromes, emphasising the explanation of the molecular mechanisms of these metabolic disorders. Special attention is given to a recently discovered molecular mechanism of the Rotor syndrome. The mechanism is based on the inability of the liver to retrospectively uptake the conjugated bilirubin fraction primarily excreted into the blood, not bile. A reduced ability of the liver to uptake the conjugated bilirubin contributes to the development of hyperbilirubinemia in common disorders of the liver and bile ducts and to the toxicity of xenobiotics and drugs using transport proteins for conjugated bilirubin.

Low energy level density and surface instabilities in heavy transition nuclei

International Nuclear Information System (INIS)

Wieclawik, W. de; Foucher, R.; Dionisio, J.S.; Vieu, C.; Hoglund, A.; Watzig, W.

1975-01-01

A statistical analysis of Au, Pt, Hg nuclear levels was performed with Ericson's method. The odd mass gold experimental number of levels distributions are compared to the theoretical distributions corresponding to vibrational (Alaga and Kisslinger-Sorensen) and rotational (Stephens, Meyer-ter-Vehn) models. The Alaga model gives the most complete description of 193 Au, 195 Au levels and fits the lowest part of Gilbert-Cameron high energy distributions (deduced from the statistical model and neutron capture data). The Ericson's method shows other interesting features of Pt and Hg isotopes (i.e. level density dependence on nuclear shape and pairing correlations, evidence for phase transitions). Consequently, this method is a useful tool for guiding experimental as well as theoretical investigations of transition nuclei [fr

‘I Wish I Could Work in my Spare Time’

DEFF Research Database (Denmark)

Raastrup Kristensen, Anders; Pedersen, Michael

2017-01-01

Work–life balance has become an important topic for both mainstream and critical scholars. We will provide here an empirical analysis of work–life balance from the theoretical perspective of Gilbert Simondon. In such a perspective, individuals’ efforts to balance work with life should be viewed...... as part of an individuation process, neither reducible to the sphere of work nor of life. Qualitative data gathered at a global biotech firm has demonstrated how problems related to work–life balance, such as working while ill and working from home, illustrate ways employees become individuated....... The article ends by discussing the contribution and relevance of Simondon’s thinking to current theories of work–life balance in relation to research methodology and ethics....

AEC authorizing legislation, fiscal year 1975. Part 3. Hearings before the Joint Committee on Atomic Energy, Congress of the United States, Ninety-Third Congress, Second Session on Physical Research and Regulatory, February 28, 1974

International Nuclear Information System (INIS)

1974-01-01

This volume contains testimony on the proposed budget for the physical research program presented at public hearings of the Joint Committee on Atomic Energy on the proposed AEC authorizing legislation for fiscal year 1975. Atomic Energy Commission witnesses were Commissioner William O. Doub; Director of Regulation L. Manning Muntzing; Dr. Wolfgang K. H. Panofsky, Director, SLAC; Dr. John M. Teem, Assistant General Manager for Physical Research and Laboratory Coordination; and Dr. Robert R. Wilson, Director, NAL. Other witnesses included B. James Porter, Donald C. Gilbert, Hon. Sterling Cole, and Wyatt M. Rogers, Jr. Prepared statements, questions and answers, a letter from AEC Chairman Ray, and the report of the ad hoc panel on heavy-ion facilities are included. (U.S.)

Micromagnetic modeling of the effects of stress on magnetic properties

International Nuclear Information System (INIS)

Zhu, B.; Lo, C. C. H.; Lee, S. J.; Jiles, D. C.

2001-01-01

A micromagnetic model has been developed for investigating the effect of stress on the magnetic properties of thin films. This effect has been implemented by including the magnetoelastic energy term into the Landau - Lifshitz - Gilbert equation. Magnetization curves of a nickel film were calculated under both tensile and compressive stresses of various magnitudes applied along the field direction. The modeling results show that coercivity increased with increasing compressive stress while remanence decreased with increasing tensile stress. The results are in agreement with the experimental data in the literature and can be interpreted in terms of the effects of the applied stress on the irreversible rotation of magnetic moments during magnetization reversal under an applied field. [copyright] 2001 American Institute of Physics

Relativistic and thermal effects on the magnon spectrum of a ferromagnetic monolayer.

Science.gov (United States)

Rózsa, L; Udvardi, L; Szunyogh, L

2013-12-18

A spin model including magnetic anisotropy terms and Dzyaloshinsky-Moriya interactions is studied for the case of a ferromagnetic monolayer with C2v symmetry like Fe/W(110). Using the quasiclassical stochastic Landau-Lifshitz-Gilbert equations, the magnon spectrum of the system is derived using linear response theory. The Dzyaloshinsky-Moriya interaction leads to asymmetry in the spectrum, while the anisotropy terms induce a gap. It is shown that, in the presence of lattice defects, both the Dzyaloshinsky-Moriya interactions and the two-site anisotropy lead to a softening of the magnon energies. Two methods are developed to investigate the magnon spectrum at finite temperatures. The theoretical results are compared to atomistic spin dynamics simulations and good agreement is found between them.

Bulk and edge spin transport in topological magnon insulators

Science.gov (United States)

Rückriegel, Andreas; Brataas, Arne; Duine, Rembert A.

2018-02-01

We investigate the spin transport properties of a topological magnon insulator, a magnetic insulator characterized by topologically nontrivial bulk magnon bands and protected magnon edge modes located in the bulk band gaps. Employing the Landau-Lifshitz-Gilbert phenomenology, we calculate the spin current driven through a normal metal |topological magnon insulator |normal metal heterostructure by a spin accumulation imbalance between the metals, with and without random lattice defects. We show that bulk and edge transport are characterized by different length scales. This results in a characteristic system size where the magnon transport crosses over from being bulk dominated for small systems to edge dominated for larger systems. These findings are generic and relevant for topological transport in systems of nonconserved bosons.

Brownian motion of massive skyrmions in magnetic thin films

International Nuclear Information System (INIS)

Troncoso, Roberto E.; Núñez, Álvaro S.

2014-01-01

We report on the thermal effects on the motion of current-driven massive magnetic skyrmions. The reduced equation for the motion of skyrmion has the form of a stochastic generalized Thiele’s equation. We propose an ansatz for the magnetization texture of a non-rigid single skyrmion that depends linearly with the velocity. By using this ansatz it is found that the skyrmion mass tensor is closely related to intrinsic skyrmion parameters, such as Gilbert damping, skyrmion-charge and dissipative force. We have found an exact expression for the average drift velocity as well as the mean-square velocity of the skyrmion. The longitudinal and transverse mobility of skyrmions for small spin-velocity of electrons is also determined and found to be independent of the skyrmion mass

Brownian motion of massive skyrmions in magnetic thin films

Energy Technology Data Exchange (ETDEWEB)

Troncoso, Roberto E., E-mail: r.troncoso.c@gmail.com [Centro para el Desarrollo de la Nanociencia y la Nanotecnología, CEDENNA, Avda. Ecuador 3493, Santiago 9170124 (Chile); Núñez, Álvaro S., E-mail: alnunez@dfi.uchile.cl [Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 487-3, Santiago (Chile)

2014-12-15

We report on the thermal effects on the motion of current-driven massive magnetic skyrmions. The reduced equation for the motion of skyrmion has the form of a stochastic generalized Thiele’s equation. We propose an ansatz for the magnetization texture of a non-rigid single skyrmion that depends linearly with the velocity. By using this ansatz it is found that the skyrmion mass tensor is closely related to intrinsic skyrmion parameters, such as Gilbert damping, skyrmion-charge and dissipative force. We have found an exact expression for the average drift velocity as well as the mean-square velocity of the skyrmion. The longitudinal and transverse mobility of skyrmions for small spin-velocity of electrons is also determined and found to be independent of the skyrmion mass.

A contribution to the physically and geometrically nonlinear computer analysis of general reinforced concrete shells

International Nuclear Information System (INIS)

Zahlten, W.

1990-02-01

Starting from a Kirchhoff-Love type shell theory of finite rotations a layered shell element for reinforced concrete is developed. The plastic-fracturing theory due to Bazant/Kim is used to describe the uncracked concrete. Tension cracking is controlled by a principle tensile stress criterion. An elasto-plastic law with kinematic hardening models the reinforcing steel. The tension stiffening concept of Gilbert/Warner allows an averaged consideration of the concrete between cracks. By discretization of the displacement field the element matrices are obtained which are derived via tensor notation. The nonlinear structural response is computed by incremental-iterative path-tracing algorithms. The range of applicability of the model is finally be proven by several examples with time-invariant and time-dependent loading. (orig.) [de

Electric-field tunable spin diode FMR in patterned PMN-PT/NiFe structures

Energy Technology Data Exchange (ETDEWEB)

Ziętek, Slawomir, E-mail: zietek@agh.edu.pl; Skowroński, Witold; Stobiecki, Tomasz [AGH University of Science and Technology, Department of Electronics, Al. Mickiewicza 30, 30-059 Kraków (Poland); Ogrodnik, Piotr, E-mail: piotrogr@if.pw.edu.pl [AGH University of Science and Technology, Department of Electronics, Al. Mickiewicza 30, 30-059 Kraków (Poland); Faculty of Physics, Warsaw University of Technology, ul. Koszykowa 75, 00-662 Warszawa (Poland); Stobiecki, Feliks [Institute of Molecular Physics, Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznań (Poland); Dijken, Sebastiaan van [NanoSpin, Department of Applied Physics, Aalto University School of Science, P.O. Box 15100, FI-00076 Aalto (Finland); Barnaś, Józef [Faculty of Physics, Adam Mickiewicz University, ul. Umultowska 85, 61-614 Poznań (Poland); Institute of Molecular Physics, Polish Academy of Sciences, ul. Smoluchowskiego 17, 60-179 Poznań (Poland)

2016-08-15

Dynamic properties of NiFe thin films on PMN-PT piezoelectric substrate are investigated using the spin-diode method. Ferromagnetic resonance (FMR) spectra of microstrips with varying width are measured as a function of magnetic field and frequency. The FMR frequency is shown to depend on the electric field applied across the substrate, which induces strain in the NiFe layer. Electric field tunability of up to 100 MHz per 1 kV/cm is achieved. An analytical model based on total energy minimization and the Landau-Lifshitz-Gilbert equation, taking into account the magnetostriction effect, is used to explain the measured dynamics. Based on this model, conditions for optimal electric-field tunable spin diode FMR in patterned NiFe/PMN-PT structures are derived.

Transient analysis of electromagnetic wave interactions on ferrite structures using Landau-Lifshitz-Gilbert and volume integral equations

KAUST Repository

Sayed, Sadeed Bin

2015-10-26

Magnetization of a ferrite can be dynamically tuned using a biasing DC magnetic field. This makes ferrites a good choice of substrate for reconfigurable microwave devices and antenna designs. For example, antenna patterns and resonance frequencies can be shifted by adjusting the biasing DC magnetic field during the operation of the antenna or the device (A. Ustinov et al., Appl. Phys. Lett., 90, (031913), 2007).

Transient analysis of electromagnetic wave interactions on ferrite structures using Landau-Lifshitz-Gilbert and volume integral equations

KAUST Repository

Sayed, Sadeed Bin; Ulku, Huseyin Arda; Bagci, Hakan

2015-01-01

Magnetization of a ferrite can be dynamically tuned using a biasing DC magnetic field. This makes ferrites a good choice of substrate for reconfigurable microwave devices and antenna designs. For example, antenna patterns and resonance frequencies can be shifted by adjusting the biasing DC magnetic field during the operation of the antenna or the device (A. Ustinov et al., Appl. Phys. Lett., 90, (031913), 2007).

Pulsed laser deposition of epitaxial yttrium iron garnet films with low Gilbert damping and bulk-like magnetization

Directory of Open Access Journals (Sweden)

M. C. Onbasli

2014-10-01

Full Text Available Yttrium iron garnet (YIG, Y 3Fe5O12 films have been epitaxially grown on Gadolinium Gallium Garnet (GGG, Gd3Ga5O12 substrates with (100 orientation using pulsed laser deposition. The films were single-phase, epitaxial with the GGG substrate, and the root-mean-square surface roughness varied between 0.14 nm and 0.2 nm. Films with thicknesses ranging from 17 to 200 nm exhibited low coercivity (<2 Oe, near-bulk room temperature saturation moments (∼135 emu cm−3, in-plane easy axis, and damping parameters as low as 2.2 × 10−4. These high quality YIG thin films are useful in the investigation of the origins of novel magnetic phenomena and magnetization dynamics.

Dynamics of magnetization in ferromagnet with spin-transfer torque

Science.gov (United States)

Li, Zai-Dong; He, Peng-Bin; Liu, Wu-Ming

2014-11-01

We review our recent works on dynamics of magnetization in ferromagnet with spin-transfer torque. Driven by constant spin-polarized current, the spin-transfer torque counteracts both the precession driven by the effective field and the Gilbert damping term different from the common understanding. When the spin current exceeds the critical value, the conjunctive action of Gilbert damping and spin-transfer torque leads naturally the novel screw-pitch effect characterized by the temporal oscillation of domain wall velocity and width. Driven by space- and time-dependent spin-polarized current and magnetic field, we expatiate the formation of domain wall velocity in ferromagnetic nanowire. We discuss the properties of dynamic magnetic soliton in uniaxial anisotropic ferromagnetic nanowire driven by spin-transfer torque, and analyze the modulation instability and dark soliton on the spin wave background, which shows the characteristic breather behavior of the soliton as it propagates along the ferromagnetic nanowire. With stronger breather character, we get the novel magnetic rogue wave and clarify its formation mechanism. The generation of magnetic rogue wave mainly arises from the accumulation of energy and magnons toward to its central part. We also observe that the spin-polarized current can control the exchange rate of magnons between the envelope soliton and the background, and the critical current condition is obtained analytically. At last, we have theoretically investigated the current-excited and frequency-adjusted ferromagnetic resonance in magnetic trilayers. A particular case of the perpendicular analyzer reveals that the ferromagnetic resonance curves, including the resonant location and the resonant linewidth, can be adjusted by changing the pinned magnetization direction and the direct current. Under the control of the current and external magnetic field, several magnetic states, such as quasi-parallel and quasi-antiparallel stable states, out

Slow Onsets, Abrupt Changes, and Fast Reflexes: Learning from Climate Hazards in a Changing World

Science.gov (United States)

Pulwarty, R. S.

2016-12-01

Adaptation is higher than ever before on the global agenda. Awareness of risks across the weather-climate continuum has increased pressure for information to support planning under changing rates and emergence of multiple hazards (e.g. drought, heat waves, floods). In recognition of this demand, the global community is developing a Global Framework for Climate Services, implementing the Sendai Framework on disaster risk reduction, and formulating climate-sensitive development and research initiatives aimed at nations and communities. The gap between conceptual feasibility and practical implementation remains immense. One of Gilbert White's many important contributions was in developing a framework for structuring adjustment decisions in the context of longer-term risks. The physical environment at a given stage of technology sets the theoretical range of choice while the practical range of choice is set by culture, capacity and institutions. These factors facilitate or impede efficient and equitable responses, with the latter being key in the underestimation of the complexities of adaptation. This presentation will focus on the scientific research, monitoring and information needed to address challenges in (1) Understanding thresholds in the relationship between physical and social changes, including those in connected systems such as water, food and energy, (2) Designing and diffusion of decision support tools and smart practices, and (3) Understanding the links between capacity-building and implementation, including the need to focus researchers and institutions on improving decision quality (not just meeting "user needs"). The author will engage the audience in a discussion of the drivers of social transitions and transformations, drawing on cases from around the world. Key questions, include "What leads to proactive collaboration and action?"; "How often should we revise our assumptions about the direction and magnitude of changes as events unfold?"; and "What

Anomalously large ferromagnetic resonance linewidth in the Gd/Cr/Fe film plane

Science.gov (United States)

Sun, Li; Zhang, Wen; Wong, Ping Kwan Johnny; Yin, Yuli; Jiang, Sheng; Huang, Zhaocong; Zhai, Ya; Yao, Zhongyu; Du, Jun; Sui, Yunxia; Zhai, Hongru

2018-04-01

As an important parameter for characterizing the magnetization dynamics, Gilbert damping constant α in a thin film or a multilayer is generally extracted from the linear fitting of the frequency-dependence of the ferromagnetic resonance linewidth, sometimes accompanied with a tiny deviation of the linewidth to a smaller value at the low-frequency or high-frequency region due to the two-magnon scattering with an in-plane-field configuration, in which an in-plane magnetic field H perpendicular to a microwave field h was applied in film plane during measurement. In contrast, here we report, in ultrathin Gd/Cr/Fe multilayers, an anomalously large linewidth in the film plane at the low-frequency region. For the first time, we have successfully extracted the Gilbert damping constant from perfect theoretical fitting to the experimental data, by considering the effective direction of the magnetization around in precession staying out of the film plane when the in-pane H at which the precession starts is below the saturation field. This magnetization deviation from the film plane is found to have an obvious contribution to the enhanced linewidth caused by two magnon scattering, while slightly reduce the intrinsic linewidth. Under the same resonance frequency, the deviation angle reaches the maximum values at tCr = 1.0 nm while decreases when tCr increases to 1.5 nm, which coincides with the trend of the surface perpendicular anisotropy constant K⊥. A reduced intrinsic damping constant α is obtained as the introduction of Gd layer and Cr layer as a result of the competition between the spin pumping effect and the interfacial effects at the Fe/Gd and Fe/Cr interfaces. While the decreasing α for film with Cr layer thickness increasing to 1.5 nm might means the contribution of the electron density of states at the Fermi energy n(EF). This study offers an effective way to accurately obtain the intrinsic damping constant of spintronic materials/devices, which is essential

Hillslope Soils and Life (Invited)

Science.gov (United States)

Amundson, R.; Owen, J. J.; Heimsath, A. M.; Yoo, K.; Dietrich, W. E.

2013-12-01

That hillslope processes are impacted by biology has been long understood, but the complexities of the abiotic-biotic processes and their feedbacks are quantitatively emerging with the growing body of pertinent literature. The concept that plants modulate both the disaggregation and transport of soil particles on hillslopes was clearly articulated by G.K. Gilbert. Yet earlier, James Hutton (starting from very different intellectual boundary conditions) argued that soil, which results from the dynamic balance of rock destruction and removal, is a prerequisite for plants - a concept that underscores the need to more deeply examine the feedback of geomorphic processes on terrestrial ecosystems. We compiled the results of recent studies that have been conducted on gentle convex hillslopes across a broad range of rainfall. We found that vegetated landscapes appear to have strong controls on hillslope soil thickness, landscape denudation rates, and soil residence times. The restricted range in residence times - despite large differences in climate - appear in turn to sustain relatively high levels of both nitrogen (N) and phosphorus (P) fertility, suggesting ecological resilience and resistance to non-anthropogenic environmental perturbations. At the most arid end of Earth's climate vegetation disappears, but not all water. The loss of plants shifts soil erosion to abiotic processes, with a corresponding thinning or loss of the soil mantle. This reinforces the hypothesis that a planet without vegetation, but with a hydrologic cycle, would be largely devoid of soil-mantled hillslopes and would be driven toward hillslope morphologies that differ from the familiar convex-up forms of biotic landscapes. While our synthesis of the effects of vegetation on soil production and soil thickness provides a quantitative view of the suggestions of Gilbert, it also identifies that vegetation itself responds to the geomorphic processes, as believed by Hutton. There is a complex

Factor structure of a conceptual model of oral health tested among 65-year olds in Norway and Sweden.

Science.gov (United States)

Astrøm, Anne Nordrehaug; Ekbäck, Gunnar; Ordell, Sven

2010-04-01

No studies have tested oral health-related quality of life models in dentate older adults across different populations. To test the factor structure of oral health outcomes within Gilbert's conceptual model among 65-year olds in Sweden and Norway. It was hypothesized that responses to 14 observed indicators could be explained by three correlated factors, symptom status, functional limitations and oral disadvantages, that each observed oral health indicator would associate more strongly with the factor it is supposed to measure than with competing factors and that the proposed 3-factor structure would possess satisfactory cross-national stability with 65-year olds in Norway and Sweden. In 2007, 6078 Swedish- and 4062 Norwegian adults borne in 1942 completed mailed questionnaires including oral symptoms, functional limitations and the eight item Oral Impacts on Daily Performances inventory. Model generation analysis was restricted to the Norwegian study group and the model achieved was tested without modifications in Swedish 65-year olds. A modified 3-factor solution with cross-loadings, improved the fit to the data compared with a 2-factor- and the initially proposed 3-factor model among the Norwegian [comparative fit index (CFI) = 0.97] and Swedish (CFI = 0.98) participants. All factor loadings for the modified 3-factor model were in the expected direction and were statistically significant at CR > 1. Multiple group confirmatory factor analyses, with Norwegian and Swedish data simultaneously revealed acceptable fit for the unconstrained model (CFI = 0.97), whereas unconstrained and constrained models were statistically significant different in nested model comparison. Within construct validity of Gilbert's model was supported with Norwegian and Swedish 65-year olds, indicating that the 14-item questionnaire reflected three constructs; symptom status, functional limitation and oral disadvantage. Measurement invariance was confirmed at the level of factor structure

Pacific plate slab pull and intraplate deformation in the early Cenozoic

Directory of Open Access Journals (Sweden)

N. P. Butterworth

2014-08-01

Full Text Available Large tectonic plates are known to be susceptible to internal deformation, leading to a~range of phenomena including intraplate volcanism. However, the space and time dependence of intraplate deformation and its relationship with changing plate boundary configurations, subducting slab geometries, and absolute plate motion is poorly understood. We utilise a buoyancy-driven Stokes flow solver, BEM-Earth, to investigate the contribution of subducting slabs through time on Pacific plate motion and plate-scale deformation, and how this is linked to intraplate volcanism. We produce a series of geodynamic models from 62 to 42 Ma in which the plates are driven by the attached subducting slabs and mantle drag/suction forces. We compare our modelled intraplate deformation history with those types of intraplate volcanism that lack a clear age progression. Our models suggest that changes in Cenozoic subduction zone topology caused intraplate deformation to trigger volcanism along several linear seafloor structures, mostly by reactivation of existing seamount chains, but occasionally creating new volcanic chains on crust weakened by fracture zones and extinct ridges. Around 55 Ma, subduction of the Pacific-Izanagi ridge reconfigured the major tectonic forces acting on the plate by replacing ridge push with slab pull along its northwestern perimeter, causing lithospheric extension along pre-existing weaknesses. Large-scale deformation observed in the models coincides with the seamount chains of Hawaii, Louisville, Tokelau and Gilbert during our modelled time period of 62 to 42 Ma. We suggest that extensional stresses between 72 and 52 Ma are the likely cause of large parts of the formation of the Gilbert chain and that localised extension between 62 and 42 Ma could cause late-stage volcanism along the Musicians volcanic ridges. Our models demonstrate that early Cenozoic changes in Pacific plate driving forces only cause relatively minor changes in Pacific

The study of the digestive absorption of water in patients suffering from cirrhosis of the liver, by using two hydrogen tracers; etude de l'absorption digestive de l'eau chez les malades atteints de cirrhose du foie a l'aide de deux indicateurs de l'hydrogene

Energy Technology Data Exchange (ETDEWEB)

Laine-Boszormenyi, M. [Institut National d' Hygiene (France); Fallot, P.; Masson, J.; Calvet, P. [Commissariat a l' energie atomique et aux energies alternatives - CEA, Service de, CEA Saclay (France)

1960-07-01

We have studied the rate of appearance of ingested water in the peripheral blood of four patients suffering from cirrhosis of the liver with ascites. For this purpose, oral administration of deuterium oxide and intravenous administration of tritiated water were made simultaneously. This double experiment enables the phenomenon of diffusion of the tracer outside the vascular regions to be observed and calculation to be made of the amounts absorbed by the digestive tract and transferred to the peripheral circulation. The rate of absorption observed under the above conditions proves to be distinctly less (1.2 percent per minute of the ingested dose) than that observed by Scholer and Code in normal subjects (9 percent per minute of the ingested dose). Hypotheses are advanced which could account for the facts observed and which offer a satisfactory explanation of Gilbert's opsiuria. Reprint of a paper published in International Journal of Applied Radiation and Isotopes, vol. 7, p. 233-243, 1960 [French] Nous avons etudie chez quatre malades atteints de cirrhose du foie avec ascite, la vitesse d'apparition dans le sang peripherique de l'eau ingeree. A cet effet, nous avons administre simultanement a nos malades de l'oxyde de deuterium par voie orale et de l'eau tritiee par voie intraveineuse. Cette double epreuve permet de faire la part du phenomene de diffusion de 11 indicateur hors des territoires vasculaires et de calculer les quantites absorbees par le tube digestif et transferees dans la circulation peripherique. La vitesse d'absorption appreciee dans les conditions precedentes (1,2 pour cent par minute de la dose ingeree) s'avere notablement inferieure a celle observee par SCHOLER et CODE chez les sujets normaux (9 pour cent par minute de la dose ingeree). Nous avons evoque des hypotheses susceptibles de rendre compte des faits observes qui apportent une explication satisfaisante a l'opsiurie de Gilbert. Reproduction d'un article publie dans International Journal

Induced voltage due to time-dependent magnetisation textures

International Nuclear Information System (INIS)

Kudtarkar, Santosh Kumar; Dhadwal, Renu

2010-01-01

We determine the induced voltage generated by spatial and temporal magnetisation textures (inhomogeneities) in metallic ferromagnets due to the spin diffusion of non-equilibrium electrons. Using time dependent semi-classical theory as formulated in Zhang and Li and the drift-diffusion model of transport it is shown that the voltage generated depends critically on the difference in the diffusion constants of up and down spins. Including spin relaxation results in a crucial contribution to the induced voltage. We also show that the presence of magnetisation textures results in the modification of the conductivity of the system. As an illustration, we calculate the voltage generated due to a time dependent field driven helimagnet by solving the Landau-Lifshitz equation with Gilbert damping and explicitly calculate the dependence on the relaxation and damping parameters.

CERN in the park

CERN Multimedia

2002-01-01

CERN will be the centre of debate at a 'Café scientifique' on Monday 29 April. The aim of the Cafés scientifiques, which are organised by the association of Bancs Publics, is to kindle discussion between ordinary people and specialists in a scientific field. This Monday, Maurice Bourquin, President of the CERN Council, Hans Hoffmann, Director of Technology Transfer and Scientific Computing at CERN, Gilbert Guignard, a physicist at CERN, and Ruhal Floris, who teaches mathematical didactics at the University of Geneva, will explain the usefulness and contributions to science of the world's biggest laboratory for particle physics. What is CERN for? Monday 29 April at 18.30 Musée d'histoire des sciences, Geneva (in the park Perle du Lac) Entry free Wine and buffet after the discussion

New quantum codes constructed from quaternary BCH codes

Science.gov (United States)

Xu, Gen; Li, Ruihu; Guo, Luobin; Ma, Yuena

2016-10-01

In this paper, we firstly study construction of new quantum error-correcting codes (QECCs) from three classes of quaternary imprimitive BCH codes. As a result, the improved maximal designed distance of these narrow-sense imprimitive Hermitian dual-containing quaternary BCH codes are determined to be much larger than the result given according to Aly et al. (IEEE Trans Inf Theory 53:1183-1188, 2007) for each different code length. Thus, families of new QECCs are newly obtained, and the constructed QECCs have larger distance than those in the previous literature. Secondly, we apply a combinatorial construction to the imprimitive BCH codes with their corresponding primitive counterpart and construct many new linear quantum codes with good parameters, some of which have parameters exceeding the finite Gilbert-Varshamov bound for linear quantum codes.

Collaborations Between Scott and Skidmore

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Alicia Robinson

2017-04-01

Full Text Available This essay examines the collaboration between architect and designer George Gilbert Scott and metalworker Francis Skidmore. It compares their metalwork screens at the cathedrals of Hereford, Lichfield, and Salisbury—projects which sometimes overlapped and were all completed in the relatively short time span between 1861 and 1870—within the wider context of Skidmore’s career. While Scott was lauded in his lifetime and has been much studied since, Skidmore has not often been written about, despite having achieved an impressive scale and pace of work in British cathedrals, parish churches, and town halls. This essay therefore shines particular light on Skidmore’s work as designer and maker, and particularly the high profile commissions for these great cathedrals, restored and enhanced with the aesthetics and ambition of the Victorian era.

A self-consistent spin-diffusion model for micromagnetics

KAUST Repository

Abert, Claas; Ruggeri, Michele; Bruckner, Florian; Vogler, Christoph; Manchon, Aurelien; Praetorius, Dirk; Suess, Dieter

2016-01-01

We propose a three-dimensional micromagnetic model that dynamically solves the Landau-Lifshitz-Gilbert equation coupled to the full spin-diffusion equation. In contrast to previous methods, we solve for the magnetization dynamics and the electric potential in a self-consistent fashion. This treatment allows for an accurate description of magnetization dependent resistance changes. Moreover, the presented algorithm describes both spin accumulation due to smooth magnetization transitions and due to material interfaces as in multilayer structures. The model and its finite-element implementation are validated by current driven motion of a magnetic vortex structure. In a second experiment, the resistivity of a magnetic multilayer structure in dependence of the tilting angle of the magnetization in the different layers is investigated. Both examples show good agreement with reference simulations and experiments respectively.

‘Space’ Interpretation in Contemporary English Fictional Discourse: Female Perspective

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Anna I. Dzyubenko

2016-12-01

Full Text Available The article reveals the set of transformations that the space being a vital element of the fictional discourse structure undergoes being introduced into the narration by the modern female authors (S. Townsend, C. Alliott, K. Swan, E. Gilbert. The article also represents the basic characteristics attributed to ‘space’ as a key component reinforcing the whole narrative structure of the female discourse. The author states that the space in such discourse proves to be much influenced and strongly correlated with the emotional background the protagonists have creating suspense and climax or, on the contrary, anticlimax in the narration. It is suggested that the fictional space is most often graded in size, in its morphological characteristics and qualities. Moreover, the space is prone to be moving and developing than being stagnant.

A self-consistent spin-diffusion model for micromagnetics

KAUST Repository

Abert, Claas

2016-12-17

We propose a three-dimensional micromagnetic model that dynamically solves the Landau-Lifshitz-Gilbert equation coupled to the full spin-diffusion equation. In contrast to previous methods, we solve for the magnetization dynamics and the electric potential in a self-consistent fashion. This treatment allows for an accurate description of magnetization dependent resistance changes. Moreover, the presented algorithm describes both spin accumulation due to smooth magnetization transitions and due to material interfaces as in multilayer structures. The model and its finite-element implementation are validated by current driven motion of a magnetic vortex structure. In a second experiment, the resistivity of a magnetic multilayer structure in dependence of the tilting angle of the magnetization in the different layers is investigated. Both examples show good agreement with reference simulations and experiments respectively.

An Analog Correlator for Ultra-Wideband Receivers

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Tu Chunjiang

2005-01-01

Full Text Available We present a new analog circuit exhibiting high bandwidth and low distortion, specially designed for signal correlation in an ultra-wideband receiver front end. The ultra-wideband short impulse signals are correlated with a local pulse template by the correlator. A comparator then samples the output for signal detection. A typical Gilbert mixer core is adopted for multiplication of broadband signals up to . As a result of synchronization of the received signal and the local template, the output voltage level after integration and sampling can reach up to , which is sufficient for detection by the comparator. The circuit dissipates about from double voltage supplies of and using SiGe BiCMOS technology. Simulation results are presented to show the feasibility of this circuit design for use in ultra-wideband receivers.

LA REPRESENTACIÓN DE LA IDENTIDAD INDIVIDUAL EN LA NARRATIVA MEXICANA DE LOS ALBORES DEL SIGLO XXI

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LILIA LETICIA GARCĺA PEÑA

2010-11-01

Full Text Available This work analyzes the transformations that exist in the representation of the individual identity in the Mexican narrative works published between 1995 and 2010 by the writers: Guillermo Fadanelli, Carlos Fuentes, Patricia Laurent Kullick, Héctor Manjarrez, Eduardo Antonio Parra, Aline Pettersson, Pedro Ángel Palou, Xavier Velasco y Socorro Venegas. The article has a general perception with the aim of emphasizing, from the individual poetics, the process of symbolization of the “I” in the Mexican narrative from the beginnings of the 21st century, that as cultural phenomenon unfolds in the borders of literariness and society. The theoretical perspective that encourages the analysis starts off, mainly, from the proposal of the North American psychologist Kenneth Gergen, the sociologist Zigmunt Bauman and the mythocritic proposal of Gilbert Durand.

How Does Emotion Influence Collaboration? - An Agent Based Simulation of the Dynamic of Confrontation

Science.gov (United States)

2011-08-01

Gilbert, N., & Terna, P. (2000). How to Build and Use Agent‐based Models in  Social Science. Retrieved March 3, 2008, from Facoltà di  Economia ...American , pp.  50–57.  Li, S., & Roloff, M. E. (2006). Strategic Emotion in Negotiation: Cognition,  Emotion, and  Culture . In Communication to Presence...Cognition, Emotions and  Culture  towards the Ultimate Communicative Experience. Amsterdam: IOS Press.  Macy, M. W., & Willer, R. (2002). From Factors

Magnetic anisotropy, damping, and interfacial spin transport in Pt/LSMO bilayers

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H. K. Lee

2016-05-01

Full Text Available We report ferromagnetic resonance measurements of magnetic anisotropy and damping in epitaxial La0.7Sr0.3MnO3 (LSMO and Pt capped LSMO thin films on SrTiO3 (001 substrates. The measurements reveal large negative perpendicular magnetic anisotropy and a weaker uniaxial in-plane anisotropy that are unaffected by the Pt cap. The Gilbert damping of the bare LSMO films is found to be low α = 1.9(1 × 10−3, and two-magnon scattering is determined to be significant and strongly anisotropic. The Pt cap increases the damping by 50% due to spin pumping, which is also directly detected via inverse spin Hall effect in Pt. Our work demonstrates efficient spin transport across the Pt/LSMO interface.

Magnetic anisotropy, damping, and interfacial spin transport in Pt/LSMO bilayers

Energy Technology Data Exchange (ETDEWEB)

Lee, H. K., E-mail: hankl@uci.edu; Barsukov, I.; Yang, L.; Krivorotov, I. N. [Physics and Astronomy, University of California, Irvine, California 92697 (United States); Swartz, A. G.; Kim, B. [Geballe Laboratory for Advanced Materials, Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Hwang, H. Y. [Geballe Laboratory for Advanced Materials, Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)

2016-05-15

We report ferromagnetic resonance measurements of magnetic anisotropy and damping in epitaxial La{sub 0.7}Sr{sub 0.3}MnO{sub 3} (LSMO) and Pt capped LSMO thin films on SrTiO{sub 3} (001) substrates. The measurements reveal large negative perpendicular magnetic anisotropy and a weaker uniaxial in-plane anisotropy that are unaffected by the Pt cap. The Gilbert damping of the bare LSMO films is found to be low α = 1.9(1) × 10{sup −3}, and two-magnon scattering is determined to be significant and strongly anisotropic. The Pt cap increases the damping by 50% due to spin pumping, which is also directly detected via inverse spin Hall effect in Pt. Our work demonstrates efficient spin transport across the Pt/LSMO interface.

Separating read and write units in multiferroic devices.

Science.gov (United States)

Roy, Kuntal

2015-06-18

Strain-mediated multiferroic composites, i.e., piezoelectric-magnetostrictive heterostructures, hold profound promise for energy-efficient computing in beyond Moore's law era. While reading a bit of information stored in the magnetostrictive nanomagnets using a magnetic tunnel junction (MTJ), a material selection issue crops up since magnetostrictive materials in general cannot be utilized as the free layer of the MTJ. This is an important issue since we need to achieve a high magnetoresistance for technological applications. We show here that magnetically coupling the magnetostrictive nanomagnet and the free layer e.g., utilizing the magnetic dipole coupling between them can circumvent this issue. By solving stochastic Landau-Lifshitz-Gilbert equation of magnetization dynamics in the presence of room-temperature thermal fluctuations, we show that such design can eventually lead to a superior energy-delay product.

Voltage-Driven Magnetization Switching and Spin Pumping in Weyl Semimetals

Science.gov (United States)

Kurebayashi, Daichi; Nomura, Kentaro

2016-10-01

We demonstrate electrical magnetization switching and spin pumping in magnetically doped Weyl semimetals. The Weyl semimetal is a three-dimensional gapless topological material, known to have nontrivial coupling between the charge and the magnetization due to the chiral anomaly. By solving the Landau-Lifshitz-Gilbert equation for a multilayer structure of a Weyl semimetal, an insulator and a metal while taking the charge-magnetization coupling into account, magnetization dynamics is analyzed. It is shown that the magnetization dynamics can be driven by the electric voltage. Consequently, switching of the magnetization with a pulsed electric voltage can be achieved, as well as precession motion with an applied oscillating electric voltage. The effect requires only a short voltage pulse and may therefore be energetically favorable for us in spintronics devices compared to conventional spin-transfer torque switching.

Spin-orbit driven phenomena in the isoelectronic L 10 -Fe(Pd,Pt) alloys from first principles

Science.gov (United States)

Kudrnovský, J.; Drchal, V.; Turek, I.

2017-12-01

The anomalous Hall effect (AHE) and the Gilbert damping (GD) are studied theoretically for the partially ordered L 10 -Fe(Pd,Pt) alloys. The varying alloy order and the spin-orbit coupling, which are due to the change in the Pd/Pt composition, allow for a chemical tuning of both phenomena which play an important role in the spintronic applications. The impact of the antisite disorder on the residual resistivity, AHE, and GD is studied from first principles using recently developed methods employing the Kubo-Bastin approach and the nonlocal torque operator method. The most interesting result is a different behavior of samples with low and high chemical orders. Good agreement between calculated and measured concentration trends is obtained for all quantities studied, while the absolute GD values are underestimated.

Use of IUDs for emergency contraception: current perspectives

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McKay R

2014-08-01

Full Text Available Rebecca McKay,1 Lynne Gilbert2 1Department of Obstetrics and Gynaecology, Peterborough City Hospital, Peterborough, Cambridgeshire, United Kingdom; 2Department of Contraception and Sexual Health, Cambridgeshire Community Services NHS Trust, Cambridge, Cambridgeshire, United Kingdom Abstract: Emergency contraception is an essential intervention for the prevention of unplanned pregnancy worldwide. The copper intrauterine device (IUD is highly effective at preventing pregnancy after unprotected sex or contraceptive failure. Unfortunately, its usage in this context is low and far exceeded by hormonal forms of emergency contraception. These have higher failure rates and, unlike the IUD, are not effective post-fertilization. This review aims to summarize the literature surrounding IUD use as emergency contraception, contrast it with the hormonal options, and provide suggestions for increased usage. Keywords: levonorgestrel, ulipristal acetate, copper intrauterine device

Persistent organic pollutants (POPs) in fish with different feeding habits inhabiting a shallow lake ecosystem.

Science.gov (United States)

Barni, María F Silva; Ondarza, Paola M; Gonzalez, Mariana; Da Cuña, Rodrigo; Meijide, Fernando; Grosman, Fabián; Sanzano, Pablo; Lo Nostro, Fabiana L; Miglioranza, Karina S B

2016-04-15

The occurrence of persistent organic pollutants (POPs) in the environment can affect organisms inhabiting aquatic systems, in particular shallow lakes that are vulnerable to environmental stressors. This study aimed to assess POPs accumulation and changes at histological and physiological levels in tissues of three fish species with different trophic habits. Gills, brain, muscle, liver and gonads of Odontesthes bonariensis, Oligosarcus jenynsii and Cyphocharax voga were collected from the shallow lake La Peregrina, located in an agricultural area from Argentina. In addition, contaminant levels in surface water (SW), suspended particulate matter (SPM) and bottom sediments (BS) were assessed. Histological lesions were evaluated in fish tissues and levels of vitellogenin (VTG) were assessed in plasma of male fish in order to correlate these alterations with the presence of POPs in the environment. Organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) were determined by GC-ECD. Biotic and abiotic samples showed the same POPs distribution pattern: OCPs>PCBs>PBDEs. Although tissue distribution of OCPs was species-specific, muscle showed the lowest levels in all species. The most abundant contaminants were endosulfans, suggesting their widespread use in the area. O. bonariensis showed the highest endosulfans levels in liver (184.2-219ngg(-1)wet w), which was associated with the high SPM levels considering this species is a filter feeder. The occurrence of PCBs and PBDEs shows the ubiquity of these pollutants in the area. Histological lesions in gills and liver of O. bonariensis and O. jenynsii, might be related with the high levels of endosulfans in these organs. The detection of VTG in males warns about a possible exposure to estrogenic compounds in the environment. In conclusion, the simultaneous exposure of fish to multiple environmental pollutants leads to different alterations, so measures should be taken in

Variation of the ichthyofauna along the Goioerê River: an important tributary of the Piquiri-Paraná basin

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Claudenice Dei Tos

2014-03-01

Full Text Available The construction of reservoirs is considered an important source of impacts on the fish fauna, severely altering the structure of the assemblage. This paper aimed to describe the structure of the fish assemblage of the Goioerê River, determining its longitudinal distribution and patterns of species dominance. The evaluation of its longitudinal variation in the diversity and abundance of the fish assemblage was conducted in July and October 2004 and January and May 2005. The collections were carried out near the headwaters (Gurucaia, middle stretch (Olaria, just above the falls (Paiquerê and downstream (Foz. Forty-four species were captured. The Gurucaia fish assemblages differed significantly from Olaria, Paiquerê and Foz. The Olaria assemblages differed significantly from the Foz. Gurucaia showed the lowest diversity and abundance of species. Astyanax aff paranae Eigenmann,1914 (78% of the total was found to be dominant at this site. Almost the same species richness was found at Olaria and Paiquerê, although Olaria had the greatest abundance of individuals. Astyanax aff paranae, Cyphocharax modestus (Fernández-Yépez, 1948 and Astyanax altiparanae Garutti & Britski, 2000 were the top three dominants and comprised over 71% of the total number of fish caught. At Paiquerê, Astyanax altiparanae, Hypostomus aff ancistroides (Ihering, 1911 and Loricariichthys platymetopon Isbrücker & Nijssen, 1979 composed 58% of the catches. Thirty-one species were recorded at Foz, which presented the greatest richness. The most abundant species were Apareiodon affinis (Steindachner, 1879, Galeocharax knerii (Steindachner, 1879 and A.altiparanae, which contributed to 50% of the total catches in this environment.These results record the fish biodiversity and how the community is longitudinally structured in the Goioerê River, and also demonstrate how this type of evaluation is important to understanding the fish community patterns and finding solutions to

Population and feeding structure of Steindachnerina notonota Miranda-Ribeiro, 1937 (Actinopterygii, Characiformes, Curimatidae in Taperoá II dam, semi-arid region of Paraíba, Brazil Estrutura populacional e alimentar de Steindachnerina notonota Miranda Ribeiro, 1937 (Actinopterygii, Characiformes, Curimatidae no Açude Taperoá II, na região do semi-árido da Paraíba, Brasil

Directory of Open Access Journals (Sweden)

Ana Karla Araujo Montenegro

2011-09-01

Full Text Available AIM: The present study investigated population structure, weight-length relationships, sex ratio and associations between feeding activity and reproductive period, diet and alimentary regime of Steindachnerina notonota at Taperoá II dam, semi-arid region of Paraíba State. METHODS: The region has the lowest pluviometric rates of Brazil. Fishes were collected during six sampling periods (October and December/2005, and March, June, August and October of 2006 encompassing two dry periods, and one rainy period. Cast, seine and gill nets were used to collect the individuals. RESULTS: Throughout the study period 120 individuals were collected, with total length ranging between 2.2 and 10.7 cm and weight between 0.31 and 43.1 g. A recruitment period, identified due to a higher abundance of small individuals in the population, was observed in the beginning of the rainy period of 2006, lasting until the beginning of the dry season. S. notonota showed a negative allometric growth type, i.e., individuals 'elongate' during their development. A significantly higher proportion of females were observed throughout the study period. The relationship between feeding and reproductive activities were not significant, given that individuals showed high feeding rates regardless of the intensity of their reproductive activities. Although the diet of S. notonota comprised several items such as plant debris, eggs, organic matter, phytoplankton, zooplankton, Nematoda, Ostracada, Conchostraca, among others, the most important feeding item was detritus, suggesting a predominant detritivirous feeding habit. CONCLUSIONS: Biological aspects of S. notonota observed in the present study suggest that this species has potential to attain great population sizes, as consequence of both diet and feeding dynamics, as well as its reproductive characteristics and growth type.OBJETIVO: O presente estudo investigou a estrutura da população, a relação peso-comprimento, a razão sexual, as associações entre atividade alimentar e período de reprodução, dieta e regime alimentar de Steindachnerina notonota, no açude Taperoá II, semi-árido paraibano. MÉTODOS: A região tem os menores índices pluviométricos do Brasil. Os peixes foram coletados em seis amostragens (Outubro e Dezembro de 2005, e Março, Junho, Agosto e Outubro de 2006, compreendendo 2 períodos de estiagem e 1 chuvoso. Para a captura dos exemplares, utilizou-se tarrafa, redes de espera e de arrasto. RESULTADOS: Ao longo do estudo capturou-se um total de 120 indivíduos, que mediram entre 2,2 e 10,7 cm de comprimento total e pesaram de 0,31 a 43,1 g. Evidenciou‑se intenso recrutamento durante todo o período estudado, demonstrado pela maior abundância de indivíduos em estádios gonadais “em maturação” (2 e “maduros (3”. S. notonota apresentou um crescimento do tipo alométrico negativo (quando os indivíduos se tornam mais “alongados” durante o seu desenvolvimento, com uma proporção sexual significativamente maior de fêmeas ao longo do período estudado. Observou-se que a relação entre a atividade alimentar e a atividade reprodutiva não foi significativa, tendo em vista que os indivíduos apresentaram alta atividade alimentar independente da intensidade da atividade reprodutiva. Embora a dieta alimentar de S. notonota tenha sido composta por diversos itens, a exemplo de restos vegetais, ovos, matéria orgânica, fitoplâncton, zooplâncton, Nematoda, Ostracoda, Conchostraca, dentre outros, o item de maior importância alimentar foi detritos, indicando um regime alimentar predominantemente detritívoro. CONCLUSÕES: Os aspectos da biologia de S. notonota observados no presente estudo, remetem a uma espécie com potencial para atingir grandes tamanhos populacionais, tanto pela sua dieta e dinâmica alimentar, quanto pelas suas características reprodutivas, e tipo de crescimento.

Dynamics of domain wall driven by spin-transfer torque

International Nuclear Information System (INIS)

Chureemart, P.; Evans, R. F. L.; Chantrell, R. W.

2011-01-01

Spin-torque switching of magnetic devices offers new technological possibilities for data storage and integrated circuits. We have investigated domain-wall motion in a ferromagnetic thin film driven by a spin-polarized current using an atomistic spin model with a modified Landau-Lifshitz-Gilbert equation including the effect of the spin-transfer torque. The presence of the spin-transfer torque is shown to create an out-of-plane domain wall, in contrast to the external-field-driven case where an in-plane wall is found. We have investigated the effect of the spin torque on domain-wall displacement, domain-wall velocity, and domain-wall width, as well as the equilibration time in the presence of the spin-transfer torque. We have shown that the minimum spin-current density, regarded as the critical value for domain-wall motion, decreases with increasing temperature.

Spin pumping damping and magnetic proximity effect in Pd and Pt spin-sink layers

Science.gov (United States)

Caminale, M.; Ghosh, A.; Auffret, S.; Ebels, U.; Ollefs, K.; Wilhelm, F.; Rogalev, A.; Bailey, W. E.

2016-07-01

We investigated the spin pumping damping contributed by paramagnetic layers (Pd, Pt) in both direct and indirect contact with ferromagnetic Ni81Fe19 films. We find a nearly linear dependence of the interface-related Gilbert damping enhancement Δ α on the heavy-metal spin-sink layer thicknesses tN in direct-contact Ni81Fe19 /(Pd, Pt) junctions, whereas an exponential dependence is observed when Ni81Fe19 and (Pd, Pt) are separated by 3 nm Cu. We attribute the quasilinear thickness dependence to the presence of induced moments in Pt, Pd near the interface with Ni81Fe19 , quantified using x-ray magnetic circular dichroism measurements. Our results show that the scattering of pure spin current is configuration-dependent in these systems and cannot be described by a single characteristic length.

Ultrafast generation of skyrmionic defects with vortex beams: Printing laser profiles on magnets

Science.gov (United States)

Fujita, Hiroyuki; Sato, Masahiro

2017-02-01

Controlling electric and magnetic properties of matter by laser beams is actively explored in the broad region of condensed matter physics, including spintronics and magneto-optics. Here we theoretically propose an application of optical and electron vortex beams carrying intrinsic orbital angular momentum to chiral ferro- and antiferromagnets. We analyze the time evolution of spins in chiral magnets under irradiation of vortex beams by using the stochastic Landau-Lifshitz-Gilbert equation. We show that beam-driven nonuniform temperature leads to a class of ring-shaped magnetic defects, what we call skyrmion multiplex, as well as conventional skyrmions. We discuss the proper beam parameters and the optimal way of applying the beams for the creation of these topological defects. Our findings provide an ultrafast scheme of generating topological magnetic defects in a way applicable to both metallic and insulating chiral (anti-) ferromagnets.

Thresholds of surface codes on the general lattice structures suffering biased error and loss

International Nuclear Information System (INIS)

Tokunaga, Yuuki; Fujii, Keisuke

2014-01-01

A family of surface codes with general lattice structures is proposed. We can control the error tolerances against bit and phase errors asymmetrically by changing the underlying lattice geometries. The surface codes on various lattices are found to be efficient in the sense that their threshold values universally approach the quantum Gilbert-Varshamov bound. We find that the error tolerance of the surface codes depends on the connectivity of the underlying lattices; the error chains on a lattice of lower connectivity are easier to correct. On the other hand, the loss tolerance of the surface codes exhibits an opposite behavior; the logical information on a lattice of higher connectivity has more robustness against qubit loss. As a result, we come upon a fundamental trade-off between error and loss tolerances in the family of surface codes with different lattice geometries

Tailoring of magnetic properties of ultrathin epitaxial Fe films by Dy doping

Directory of Open Access Journals (Sweden)

A. A. Baker

2015-07-01

Full Text Available We report on the controlled modification of relaxation parameters and magnetic moments of epitaxial Fe thin films through Dy doping. Ferromagnetic resonance measurements show that an increase of Dy doping from 0.1% to 5% gives a tripling in Gilbert damping, and more importantly a strongly enhanced anisotropic damping that can be qualitatively understood through the slow-relaxing impurity model. X-ray magnetic circular dichroism measurements show a pronounced suppression of the orbital moment of the Fe with Dy doping, leading to an almost threefold drop in the orbital to spin moment ratio, ml/ms. Doping with Dy can therefore be used to control both dynamic and static properties of thin ferromagnetic films for improved performance in spintronics device applications, mediated through the antiferromagnetic interaction of the 4f and 3d states.

Tailoring of magnetic properties of ultrathin epitaxial Fe films by Dy doping

Energy Technology Data Exchange (ETDEWEB)

Baker, A. A. [Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU (United Kingdom); Magnetic Spectroscopy Group, Diamond Light Source, Didcot, OX11 0DE (United Kingdom); Figueroa, A. I.; Laan, G. van der [Magnetic Spectroscopy Group, Diamond Light Source, Didcot, OX11 0DE (United Kingdom); Hesjedal, T. [Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU (United Kingdom)

2015-07-15

We report on the controlled modification of relaxation parameters and magnetic moments of epitaxial Fe thin films through Dy doping. Ferromagnetic resonance measurements show that an increase of Dy doping from 0.1% to 5% gives a tripling in Gilbert damping, and more importantly a strongly enhanced anisotropic damping that can be qualitatively understood through the slow-relaxing impurity model. X-ray magnetic circular dichroism measurements show a pronounced suppression of the orbital moment of the Fe with Dy doping, leading to an almost threefold drop in the orbital to spin moment ratio, m{sub l}/m{sub s}. Doping with Dy can therefore be used to control both dynamic and static properties of thin ferromagnetic films for improved performance in spintronics device applications, mediated through the antiferromagnetic interaction of the 4f and 3d states.

Magnetic field driven domain-wall propagation in magnetic nanowires

International Nuclear Information System (INIS)

Wang, X.R.; Yan, P.; Lu, J.; He, C.

2009-01-01

The mechanism of magnetic field induced magnetic domain-wall (DW) propagation in a nanowire is revealed: A static DW cannot exist in a homogeneous magnetic nanowire when an external magnetic field is applied. Thus, a DW must vary with time under a static magnetic field. A moving DW must dissipate energy due to the Gilbert damping. As a result, the wire has to release its Zeeman energy through the DW propagation along the field direction. The DW propagation speed is proportional to the energy dissipation rate that is determined by the DW structure. The negative differential mobility in the intermediate field is due to the transition from high energy dissipation at low field to low energy dissipation at high field. For the field larger than the so-called Walker breakdown field, DW plane precesses around the wire, leading to the propagation speed oscillation.

Micromagnetic simulation of exchange coupled ferri-/ferromagnetic heterostructures

Energy Technology Data Exchange (ETDEWEB)

Oezelt, Harald, E-mail: harald.oezelt@fhstp.ac.at [Industrial Simulation, St. Pölten University of Applied Sciences, Matthias Corvinus-Straße 15, A-3100 St. Pölten (Austria); Kovacs, Alexander; Reichel, Franz; Fischbacher, Johann; Bance, Simon [Industrial Simulation, St. Pölten University of Applied Sciences, Matthias Corvinus-Straße 15, A-3100 St. Pölten (Austria); Gusenbauer, Markus [Center for Integrated Sensor Systems, Danube University Krems, Viktor Kaplan-Straße 2, A-2700 Wiener Neustadt (Austria); Schubert, Christian; Albrecht, Manfred [Institute of Physics, Chemnitz University of Technology, Reichenhainer Straße 70, D-09126 Chemnitz (Germany); Institute of Physics, University of Augsburg, Universitätsstraße 1, D-86159 Augsburg (Germany); Schrefl, Thomas [Industrial Simulation, St. Pölten University of Applied Sciences, Matthias Corvinus-Straße 15, A-3100 St. Pölten (Austria); Center for Integrated Sensor Systems, Danube University Krems, Viktor Kaplan-Straße 2, A-2700 Wiener Neustadt (Austria)

2015-05-01

Exchange coupled ferri-/ferromagnetic heterostructures are a possible material composition for future magnetic storage and sensor applications. In order to understand the driving mechanisms in the demagnetization process, we perform micromagnetic simulations by employing the Landau–Lifshitz–Gilbert equation. The magnetization reversal is dominated by pinning events within the amorphous ferrimagnetic layer and at the interface between the ferrimagnetic and the ferromagnetic layer. The shape of the computed magnetization reversal loop corresponds well with experimental data, if a spatial variation of the exchange coupling across the ferri-/ferromagnetic interface is assumed. - Highlights: • We present a model for exchange coupled ferri-/ferromagnetic heterostructures. • We incorporate the microstructural features of the amorphous ferrimagnet. • A distribution of interface exchange coupling is assumed to fit experimental data. • The reversal is dominated by pinning within the ferrimagnet and at the interface.

Performance of current-in-plane pseudo-spin-valve devices on CMOS silicon-on-insulator underlayers

Science.gov (United States)

Katti, R. R.; Zou, D.; Reed, D.; Schipper, D.; Hynes, O.; Shaw, G.; Kaakani, H.

2003-05-01

Prior work has shown that current-in-plane (CIP) giant magnetoresistive (GMR) pseudo-spin-valve (PSV) devices grown on bulk Si wafers and bulk complementary metal-oxide semiconductor (CMOS) underlayers exhibit write and read characteristics that are suitable for application as nonvolatile memory devices. In this work, CIP GMR PSV devices fabricated on silicon-on-insulator CMOS underlayers are shown to support write and read performance. Reading and writing fields for selected devices are shown to be approximately 25%-50% that of unselected devices, which provides a margin for reading and writing specific bits in a memory without overwriting bits and without disturbing other bits. The switching characteristics of experimental devices were compared to and found to be similar with Landau-Lifschitz-Gilbert micromagnetic modeling results, which allowed inferring regions of reversible and irreversible rotations in magnetic reversal processes.

Voltage induced magnetostrictive switching of nanomagnets: Strain assisted strain transfer torque random access memory

International Nuclear Information System (INIS)

Khan, Asif; Nikonov, Dmitri E.; Manipatruni, Sasikanth; Ghani, Tahir; Young, Ian A.

2014-01-01

A spintronic device, called the “strain assisted spin transfer torque (STT) random access memory (RAM),” is proposed by combining the magnetostriction effect and the spin transfer torque effect which can result in a dramatic improvement in the energy dissipation relative to a conventional STT-RAM. Magnetization switching in the device which is a piezoelectric-ferromagnetic heterostructure via the combined magnetostriction and STT effect is simulated by solving the Landau-Lifshitz-Gilbert equation incorporating the influence of thermal noise. The simulations show that, in such a device, each of these two mechanisms (magnetostriction and spin transfer torque) provides in a 90° rotation of the magnetization leading a deterministic 180° switching with a critical current significantly smaller than that required for spin torque alone. Such a scheme is an attractive option for writing magnetic RAM cells.

Voltage induced magnetostrictive switching of nanomagnets: Strain assisted strain transfer torque random access memory

Science.gov (United States)

Khan, Asif; Nikonov, Dmitri E.; Manipatruni, Sasikanth; Ghani, Tahir; Young, Ian A.

2014-06-01

A spintronic device, called the "strain assisted spin transfer torque (STT) random access memory (RAM)," is proposed by combining the magnetostriction effect and the spin transfer torque effect which can result in a dramatic improvement in the energy dissipation relative to a conventional STT-RAM. Magnetization switching in the device which is a piezoelectric-ferromagnetic heterostructure via the combined magnetostriction and STT effect is simulated by solving the Landau-Lifshitz-Gilbert equation incorporating the influence of thermal noise. The simulations show that, in such a device, each of these two mechanisms (magnetostriction and spin transfer torque) provides in a 90° rotation of the magnetization leading a deterministic 180° switching with a critical current significantly smaller than that required for spin torque alone. Such a scheme is an attractive option for writing magnetic RAM cells.

Thresholds of surface codes on the general lattice structures suffering biased error and loss

Energy Technology Data Exchange (ETDEWEB)

Tokunaga, Yuuki [NTT Secure Platform Laboratories, NTT Corporation, 3-9-11 Midori-cho, Musashino, Tokyo 180-8585, Japan and Japan Science and Technology Agency, CREST, 5 Sanban-cho, Chiyoda-ku, Tokyo 102-0075 (Japan); Fujii, Keisuke [Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531 (Japan)

2014-12-04

A family of surface codes with general lattice structures is proposed. We can control the error tolerances against bit and phase errors asymmetrically by changing the underlying lattice geometries. The surface codes on various lattices are found to be efficient in the sense that their threshold values universally approach the quantum Gilbert-Varshamov bound. We find that the error tolerance of the surface codes depends on the connectivity of the underlying lattices; the error chains on a lattice of lower connectivity are easier to correct. On the other hand, the loss tolerance of the surface codes exhibits an opposite behavior; the logical information on a lattice of higher connectivity has more robustness against qubit loss. As a result, we come upon a fundamental trade-off between error and loss tolerances in the family of surface codes with different lattice geometries.

Soliton–antisoliton interaction in a parametrically driven easy-plane magnetic wire

Energy Technology Data Exchange (ETDEWEB)

Urzagasti, D., E-mail: deterlino@yahoo.com [Instituto de Investigaciones Físicas, UMSA, P.O. Box 8635, La Paz (Bolivia, Plurinational State of); Aramayo, A. [Instituto de Investigaciones Físicas, UMSA, P.O. Box 8635, La Paz (Bolivia, Plurinational State of); Laroze, D. [Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica (Chile); Max Planck Institute for Polymer Research, 55021 Mainz (Germany)

2014-07-11

In the present work we study the soliton–antisoliton interaction in an anisotropic easy-plane magnetic wire forced by a transverse uniform and oscillatory magnetic field. This system is described in the continuous framework by the Landau–Lifshitz–Gilbert equation. We find numerically that the spatio-temporal magnetization field exhibits both annihilative and repulsive soliton–antisoliton interactions. We also describe this system with the aim of the associated Parametrically Driven and Damped Nonlinear Schrödinger amplitude equation and give an approximate analytical solution that roughly describes the repulsive interaction. - Highlights: • We study the interactions of solitons with opposite polarity with the LLG equation. • We found that there exists both annihilative and repulsive interactions. • Similar results we found for the Parametrically Driven and Damped NLS equation. • We obtain an approximate analytical solution for the repulsive interaction.

Don quijote, Christelike geloof en natuurwetenskap 1

Directory of Open Access Journals (Sweden)

H. P.P. Lötter

1987-03-01

Full Text Available The story about Don Qulchote and the windmills is used in this article as an analogy to typify the debates that have taken place in history between natural science and representatives of Christian religion. The analogy is tested on debates that took place around Galileo. Darwin, Newton, Cuvier and the Big Bang theory. The analogy matches these debates quite well and this Is explained by the view that scientific claims to knowledge, and claims to knowledge based on Christian faith, belong to different categories and are thus not concurrents for the same truth. Gilbert Ryle's criticism on Descartes' mind-body dualism is used here to strengthen this argument. The article is concluded by pointing out in what ways one can engage in a meaningful debate on the nature of the relationship between science and Christian religion.

Data Analysis Methods for Paleogenomics

DEFF Research Database (Denmark)

Avila Arcos, Maria del Carmen

(Danmarks Grundforskningfond) 'Centre of Excellence in GeoGenetics' grant, with additional funding provided by the Danish Council for Independent Research 'Sapere Aude' programme. The thesis comprises five chapters, all of which represent different projects that involved the analysis of massive amounts......, thanks to the introduction of NGS and the implementation of data analysis methods specific for each project. Chapters 1 to 3 have been published in peer-reviewed journals and Chapter 4 is currently in review. Chapter 5 consists of a manuscript describing initial results of an ongoing research project......The work presented in this thesis is the result of research carried out during a three-year PhD at the Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, under supervision of Professor Tom Gilbert. The PhD was funded by the Danish National Research Foundation...

The level density parameters for fermi gas model

International Nuclear Information System (INIS)

Zuang Youxiang; Wang Cuilan; Zhou Chunmei; Su Zongdi

1986-01-01

Nuclear level densities are crucial ingredient in the statistical models, for instance, in the calculations of the widths, cross sections, emitted particle spectra, etc. for various reaction channels. In this work 667 sets of more reliable and new experimental data are adopted, which include average level spacing D D , radiative capture width Γ γ 0 at neutron binding energy and cumulative level number N 0 at the low excitation energy. They are published during 1973 to 1983. Based on the parameters given by Gilbert-Cameon and Cook the physical quantities mentioned above are calculated. The calculated results have the deviation obviously from experimental values. In order to improve the fitting, the parameters in the G-C formula are adjusted and new set of level density parameters is obsained. The parameters is this work are more suitable to fit new measurements

Origins of Life Research: a Bibliometric Approach

Science.gov (United States)

Aydinoglu, Arsev Umur; Taşkın, Zehra

2018-03-01

This study explores the collaborative nature and interdisciplinarity of the origin(s) of life (OoL) research community. Although OoL research is one of the oldest topics in philosophy, religion, and science; to date there has been no review of the field utilizing bibliometric measures. A dataset of 5647 publications that are tagged as OoL, astrobiology, exobiology, and prebiotic chemistry is analyzed. The most prolific authors (Raulin, Ehrenfreund, McKay, Cleaves, Cockell, Lazcano, etc.), most cited scholars and their articles (Miller 1953, Gilbert 1986, Chyba & Sagan 1992, Wolchtershauser 1988, etc.), and popular journals ( Origins of Life and Evolution of Biospheres and Astrobiology) for OoL research are identified. Moreover, interdisciplinary research conducted through research networks, institutions (NASA, Caltech, University of Arizona, University of Washington, CNRS, etc.), and keywords & concepts (astrobiology, life, Mars, amino acid, prebiotic chemistry, evolution, RNA) are explored.

Gilbert’s Syndrome: Terminology, Epidemiology, Genetics, Pathogenesis (Part I

Directory of Open Access Journals (Sweden)

T.V. Sorokman

2016-11-01

Full Text Available The aim of the review was the analysis of the literature about the prevalence, etiology, genetics and pathogenesis of Gilbert’s syndrome (GS. The scientific literature regarding GS with the keywords «Gilbert's syndrome», «hyperbilirubinemia», «uridine diphosphate glucuronosyltransferase (UGT-1A» using PubMed as a search engine was reviewed. The abstracts of 75 articles, based on investigations held within the last 10 years were analyzed. The criterion for the selection of articles for the study was based on their close relevance to the topic. The results of researches covered in 10 articles and two reports were of the top interest and deep study. In medical litera­ture GS is described under the names of different syndromes: Gilbert’s syndrome, Meulengracht’s syndrome, Gilbert — Meulengracht syndrome, Gilbert — Lereboullet syndrome, and also such as: constitutional hepatic dysfunction, familial nonhemolytic jaundice, Gilbert’s type of hyperbilirubinemia, idiopathic unconjugated hyperbilirubinemia, Crigler — Najjar hyperbilirubinemia, Arias’ type (HBLRCN, hyperbilirubinemia I. GS is a predominantly hereditary unconjugated hyperbilirubinemia associated with the reduced activity of uridine diphosphate glucuronosyltransferase (UGT-1A in liver, which is encrypted in external resources as ICD-10 — E80.4; OMIM — 143500; DiseasesDB — 5218; MedlinePlus — 000301; eMedici­nemed — 870; MeSHD — 005878. UGT-1A isoforms are found in different parts of the gastrointestinal tract (UGT1A1, UGT1A3, UGT1A4, UGT1A6, in the li­ver — UGT1A9, in the esophagus and stomach — UGT1A7, in the esophagus and intestines — UGT1A8, in the esophagus, bile ducts, stomach, intestines — UGT1A10, in kidneys — UGT1A19. The patients with GS have signs of disorders in all phases of metabolism of bilirubin — from its production to excretion: the lack of bilitranslocase which is responsible for the capture of bilirubin from the blood

Magnetization reversal processes of isotropic permanent magnets with various inter-grain exchange interactions

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Hiroshi Tsukahara

2017-05-01

Full Text Available We performed a large-scale micromagnetics simulation on a supercomputing system to investigate the properties of isotropic nanocrystalline permanent magnets consisting of cubic grains. In the simulation, we solved the Landau–Lifshitz–Gilbert equation under a periodic boundary condition for accurate calculation of the magnetization dynamics inside the nanocrystalline isotropic magnet. We reduced the inter-grain exchange interaction perpendicular and parallel to the external field independently. Propagation of the magnetization reversal process is inhibited by reducing the inter-grain exchange interaction perpendicular to the external field, and the coercivity is enhanced by this restraint. In contrast, when we reduce the inter-grain exchange interaction parallel to the external field, the coercivity decreases because the magnetization reversal process propagates owing to dipole interaction. These behaviors show that the coercivity of an isotropic permanent magnet depends on the direction of the inter-grain exchange interaction.

Evolution of the knowledge of electricity and electrotherapeutics with special reference to X-rays and cancer. Part 1. Ancient Greeks to Luigi Galvani

International Nuclear Information System (INIS)

Mould, R. F.; Aronowitz, J. N.

2006-01-01

We present a chronological review of the growth points in the knowledge of electricity, especially as applied to medicine. Commencing with the ancient Greeks and ending with cancer electrotherapeutics at the turn of the 20 t h century, our history is arranged in chronological order by years of the investigators. William Gilbert (1540-1603) initiated the era of scientific investigation, followed by advances in later centuries by Otto von Guericke (1602-1686), Abbe Nollet (1700-1770), Luigi Galvani (1737-1798), Alessandro Volta ( 1745-1827), Michael Faraday (1791-1867) and Nikola Tesla (1856-1943) among others. Although electrotherapy was infrequently used to treatment malignancy, it was to make a major contribution to cancer therapy because the experience gained in electrotherapeutics paved the way for the rapid adoption of diagnostic and therapeutic radiology. Within a year of rontge's discovery, more than a thousand books, pamphlets and papers about X-rays were published. (author)

Current-induced Rashba spin orbit torque in silicene

Energy Technology Data Exchange (ETDEWEB)

Chen, Ji, E-mail: muze7777@hdu.edu.cn [Department of Mathematics, School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China); Peng, Yingzi [Department of Physics, School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China); Center for Integrated Spintronic Devices, Hangzhou Dianzi University, Hangzhou 310018 (China); Zhou, Jie [Department of Mathematics, School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China)

2017-06-15

Highlights: • The spin dynamics of a ferromagnetic layer coupled to a silicene is investigated. • The Rashba spin orbit torque is obtained and the well-known LLG equation is modified. • The explicit forms of spin orbit torques in Domain Wall and vortex is also obtained. - Abstract: We study theoretically the spin torque of a ferromagnetic layer coupled to a silicene in the presence of the intrinsic Rashba spin orbit coupling (RSOC) effect. By using gauge field method, we find that under the applied current, the RSOC can induce an effective field which will result in the spin precession of conduction electron without applying any magnetic field. We also derive the spin torques due to the RSOC, which generalize the Landau-Lifshitz-Gilbert (LLG) equation. The spin torques are related to the applied current, the carrier density and Rashba strength of the system.

O imaginário de um grupo de cuidadores de idosos institucionalizados no cotidiano asilar

Directory of Open Access Journals (Sweden)

Elman Moreira Coelho Grison

2015-05-01

Full Text Available Trata-se de estudo realizado com cuidadores de idosos institucioinalizados. Objetivou-se conhecer o imaginário de um grupo de cuidadores em relação a seu cotidiano. O imaginário é entendido  a partir da antropologia de Gilbert Durand focada nas imagens e nos símbolos culturais. Os dados foram coletados por meio do instrumento denominado Arquétipo Teste de Nove Elementos – o AT-9, de Yves Durand e por meio da “Pedagogia da Escuta”. As teorias gerontológicas do envelhecimento também fundamentaram a análise. Evidenciou-se nesse grupo a predominância de representações mítico-simbólicas com estrutura sintética, ou seja, que pretende harmonizar os contrários, com uma tendência mística que signifca busca de união.  

Programmatic Assessment of Radioactive Waste Management Nuclear Fuel And Waste Programs. Operational Planning and Development (Activity No. AR OS 10 05 K; ONL-WN06)

Energy Technology Data Exchange (ETDEWEB)

None, None

1980-06-30

Gilbert/Commonwealth (G/C) has performed an assessment of the waste management operations at Oak Ridge National Laboratory (ORNL). The objective of this study was to review radioactive waste management as practiced at ORNL and to recommend improvements or alternatives for further study. The study involved: 1) an on-site survey of ORNL radioactive waste management operations; 2) a review of radioactive waste source data, records, and regulatory requirements; 3) an assessment of existing and planned treatment, storage, and control facilities; and 4) identification of alternatives for improving waste management operations. Information for this study was obtained from both personal interviews and written reports. The G/C suggestions for improving ORNL waste management operations are summarized. Regulatory requirements governing ORNL waste management operations are discussed. Descriptions and discussions of the radioactive liquid, solid, and gaseous waste systems are presented. The waste operations control complex is discussed.

The fourth edition of the ASP took place in Kigali

CERN Multimedia

CERN Bulletin

2016-01-01

The fourth biennial African School of Fundamental Physics and Applications (ASP) took place on 1-19 August in Africa’s cleanest city, Kigali in Rwanda.   The students of the fourth African School of Fundamental Physics and Applications pose for the traditional conference group picture. Many lecturers flew in from CERN to give lectures and mentor students. (Photo: Gilbert Tekoute) Seventy-five students from around the African continent, chosen from 439 applicants, were hosted in the University of Rwanda’s College of Sciences and Technology for about 3 weeks. The school received financial support from CERN and 19 other institutions in total, including the International Centre for Theoretical Physics (ICTP), Brookhaven National Laboratory, the South African National Research Foundation and Department of Technology, the Rwandan Ministry of Education, INFN, and other major particle physics laboratories, as well as governmental institutions in Africa, Europe and the United States....

Bathymetry and acoustic backscatter data collected in 2010 from Cat Island, Mississippi

Science.gov (United States)

Buster, Noreen A.; Pfeiffer, William R.; Miselis, Jennifer L.; Kindinger, Jack G.; Wiese, Dana S.; Reynolds, B.J.

2012-01-01

Scientists from the U.S. Geological Survey (USGS), St. Petersburg Coastal and Marine Science Center (SPCMSC), in collaboration with the U.S. Army Corps of Engineers (USACE), conducted geophysical and sedimentological surveys around Cat Island, the westernmost island in the Mississippi-Alabama barrier island chain (fig. 1). The objectives of the study were to understand the geologic evolution of Cat Island relative to other barrier islands in the northern Gulf of Mexico and to identify relationships between the geologic history, present day morphology, and sediment distribution. This report contains data from the bathymetry and side-scan sonar portion of the study collected during two geophysical cruises. Interferometric swath bathymetry and side-scan sonar data were collected aboard the RV G.K. Gilbert September 7-15, 2010. Single-beam bathymetry was collected in shallow water around the island (Field Activity Collection System (FACS) logs, and formal Federal Geographic Data Committee (FDGC) metadata.

The medical collections at the University of Glasgow.

Science.gov (United States)

Reilly, Maggie; McDonald, Stuart W

2009-01-01

The medical and other collections in the University of Glasgow have at their core the generous bequest of Dr William Hunter (1718 - 1783), a local man who rose to become an internationally renowned anatomist and obstetrician. The University does not have a Medical Museum as such but an Anatomy Museum, a Zoology Museum, a Pathology Collection, medical displays in the main halls of the Hunterian Museum in the Gilbert Scott Building and a rich collection of antiquarian medical books and archives as well as contemporary libraries. The Hunterian Collection, since its inauguration at the University of Glasgow in 1807, has engendered a spirit of diversity and scholarship that embraces many disciplines across the campus. The Hunterian Museum was the first public museum in Scotland and service to the local, national and international communities and response to their academic needs is very much at heart of its function today.

Optimal spin current pattern for fast domain wall propagation in nanowires

Science.gov (United States)

Yan, Peng; Sun, Zhouzhou; Schliemann, John; Wang, Xiangrong

2011-03-01

One of the important issues in nanomagnetism is to lower the current needed for a technologically useful domain wall (DW) propagation speed. Based on the modified Landau-Lifshitz-Gilbert (LLG) equation with both Slonczewski spin-transfer torque and the field-like torque, we derive an optimal temporally and spatially varying spin current pattern for fast DW propagation along nanowires. Under such conditions, the DW velocity in biaxial wires can be enhanced as much as tens of times higher than that achieved in experiments so far. Moreover, the fast variation of spin polarization can efficiently help DW depinning. Possible experimental realizations are discussed. This work is supported by Hong Kong RGC grants (#603508, 604109, RPC10SC05 and HKU10/CRF/08-HKUST17/CRF/08), and by Deutsche Forschungsgemeinschaft via SFB 689. ZZS thanks the Alexander von Humboldt Foundation (Germany) for a grant.

Marketing overseas: What are the pitfalls a company faces

International Nuclear Information System (INIS)

Stephens, D.J.

1986-01-01

America's technological superiority in many fields is one of this country's strongest assets. Our national security requires that sensitive or defense related American technology be protected where necessary. However, American technology is an essential part of this country's international trade. Together with other companies in the audience, Gilbert hopes to contribute to restoring a favorable balance in U.S. trade with other countries. This objective is, however, frustrated to a substantial degree by American regulatory requirements which are unnecessary, outdated, technologically unjustified, or duplicative. In the authors's view, the concerned government agencies should work with the American nuclear industry to bring applicable regulations up-to-date and to streamline procedures without sacrificing basic non-proliferation objectives. By improving the reliability of American suppliers, such an effort could assist this country in realizing its non-proliferation objectives. At the same time, the competitiveness of the American nuclear industry could be substantially improved

Finalmente, um novo texto de autores brasileiros sobre teorias de marketing

Directory of Open Access Journals (Sweden)

José Rafael Motta Neto

2007-12-01

Full Text Available  Até recentemente, o ensino de marketing nas universidades e faculdades brasileiras tinha o suporte bibliográfico de autores clássicos da literatura da área. Pontificavam nomes como Philip Kotler, o mais tradicional dos autores de marketing, com suas obras em português nos servindo desde os anos 60, até obras mais recentes como a de Gilbert A. Churchill Jr e J. Paul Peter, passando por consagrados autores nacionais como Marcos Cobra e Alexandre Las Casas. Obviamente estamos falando de obras que fazem referência à teoria do marketing, abordando integralmente o conteúdo que permite ao leitor entender todos os conceitos desta área, numa seqüência didaticamente adequada, além de facilitar, para o professor, a transmissão da matéria, como na disciplina de Administração Mercadológica.

Effect of resistance feedback on spin torque-induced switching of nanomagnets

International Nuclear Information System (INIS)

Garzon, Samir; Webb, Richard A.; Covington, Mark; Kaka, Shehzaad; Crawford, Thomas M.

2009-01-01

In large magnetoresistance devices spin torque-induced changes in resistance can produce GHz current and voltage oscillations which can affect magnetization reversal. In addition, capacitive shunting in large resistance devices can further reduce the current, adversely affecting spin torque switching. Here, we simultaneously solve the Landau-Lifshitz-Gilbert equation with spin torque and the transmission line telegrapher's equations to study the effects of resistance feedback and capacitance on magnetization reversal of both spin valves and magnetic tunnel junctions. While for spin valves parallel (P) to anti-parallel (AP) switching is adversely affected by the resistance feedback due to saturation of the spin torque, in low resistance magnetic tunnel junctions P-AP switching is enhanced. We study the effect of resistance feedback on the switching time of magnetic tunnel junctions, and show that magnetization switching is only affected by capacitive shunting in the pF range.

The need for control of magnetic parameters for energy efficient performance of magnetic tunnel junctions

Science.gov (United States)

Farhat, I. A. H.; Gale, E.; Alpha, C.; Isakovic, A. F.

2017-07-01

Optimizing energy performance of Magnetic Tunnel Junctions (MTJs) is the key for embedding Spin Transfer Torque-Random Access Memory (STT-RAM) in low power circuits. Due to the complex interdependencies of the parameters and variables of the device operating energy, it is important to analyse parameters with most effective control of MTJ power. The impact of threshold current density, Jco , on the energy and the impact of HK on Jco are studied analytically, following the expressions that stem from Landau-Lifshitz-Gilbert-Slonczewski (LLGS-STT) model. In addition, the impact of other magnetic material parameters, such as Ms , and geometric parameters such as tfree and λ is discussed. Device modelling study was conducted to analyse the impact at the circuit level. Nano-magnetism simulation based on NMAGTM package was conducted to analyse the impact of controlling HK on the switching dynamics of the film.

Pathogenic microbial ancient DNA: a problem or an opportunity?

DEFF Research Database (Denmark)

Willerslev, Eske; Cooper, Alan

2006-01-01

cloning. Yet these studies have used mobile insertion elements (e.g. IS 6110 in tuberculosis) or conserved loci (e.g. 16S) to detect the presence of pathogens, and very similar or identical sequences have been reported from environmental bacteria (Gilbert et al. 2004). For example, Rollo & Marota (1999......We agree with Donoghue & Spigelman (2005) that, although pathogen studies hold great potential, any discussion requires a critical assessment of the results to date. However, we did note, as did Pääbo et al. (2004), that the field of ancient pathogen DNA still lacks a series of well......-controlled and rigorous studies that address technical issues and reliability criteria. This is unfortunate, as the rapid evolutionary rate of many pathogens offers a unique means to establish the authenticity of ancient pathogen sequences-since they should clearly be ancestral to modern genetic diversity (e.g. Reid et...

Control of magnetic relaxation by electric-field-induced ferroelectric phase transition and inhomogeneous domain switching

Energy Technology Data Exchange (ETDEWEB)

Nan, Tianxiang; Emori, Satoru; Wang, Xinjun; Hu, Zhongqiang; Xie, Li; Gao, Yuan; Lin, Hwaider; Sun, Nian, E-mail: n.sun@neu.edu [Department of Electrical and Computer Engineering, Northeastern University, Boston, Massachusetts 02115 (United States); Peng, Bin; Liu, Ming, E-mail: mingliu@mail.xjtu.edu.cn [Electronic Materials Research Laboratory, Xi' an Jiaotong University, Xi' an 710049 (China); Jiao, Jie; Luo, Haosu [Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800 (China); Budil, David [Department of Chemistry, Northeastern University, Boston, Massachusetts 02115 (United States); Jones, John G.; Howe, Brandon M.; Brown, Gail J. [Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States)

2016-01-04

Electric-field modulation of magnetism in strain-mediated multiferroic heterostructures is considered a promising scheme for enabling memory and magnetic microwave devices with ultralow power consumption. However, it is not well understood how electric-field-induced strain influences magnetic relaxation, an important physical process for device applications. Here, we investigate resonant magnetization dynamics in ferromagnet/ferroelectric multiferroic heterostructures, FeGaB/PMN-PT and NiFe/PMN-PT, in two distinct strain states provided by electric-field-induced ferroelectric phase transition. The strain not only modifies magnetic anisotropy but also magnetic relaxation. In FeGaB/PMN-PT, we observe a nearly two-fold change in intrinsic Gilbert damping by electric field, which is attributed to strain-induced tuning of spin-orbit coupling. By contrast, a small but measurable change in extrinsic linewidth broadening is attributed to inhomogeneous ferroelastic domain switching during the phase transition of the PMN-PT substrate.

APPROACHING COMPETITIVENESS AT THE LEVEL OF MULTINATIONAL COMPANIES

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DORINA NIŢĂ

2011-01-01

Full Text Available The competitiveness of multinational corporations is a particularly complex concept due to the fact that at present this type of company represents economic entities which continue to develop in the context of the process of internationalization and the transition to the use of global strategies. Competitiveness is a competition between corporations for new positions on the markets. With regard to the competitiveness of multinational corporations, the most accurate description was given by Gilbert Abraham Frois who believed these businesses must think globally, but act locally. In the competitive global market, emphasis is laid on plus – the value given by the competitiveness of the human element, taking into account the fact that the human resource doesn’t run out, and its value doesn’t decrease over time, but on the contrary, its value increases on condition that it is rigorously managed and developed.

Aproximacion a la semanticidad de lo sobrenatural en la fábula garciamarquiana

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Moreno Blanco Juan

1997-06-01

Full Text Available La búsqueda de la semanticidad del discurso narrativo de Gabriel García Márquez se lleva a cabo en este trabajo siguiendo el dinamismo del símbolo entre su concreción sincrónica (el mitema y su proceso de transformación diacrónica en la profundidad que reúne por isomorfismo (esquema arquetipal, superficies aparentemente diferentes, distanciadas por la linealidad del signo lingüístico. La tesis fundamental es que el corpus discursivo que hemos aislado, no es representación de una exterioridad histórica o social, sino su eufemización en virtud de los imperativos ontológicos del sujeto imaginante. El paradigma teórico que este trabajo instrumentaliza en la interpretación de la ficción literaria es la propuesta de Gilbert Durand, conocida como "mitocrítica".

The magnetic monopole and the separation between fast and slow magnetic degrees of freedom.

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Wegrowe, J-E; Olive, E

2016-03-16

The Landau-Lifshitz-Gilbert (LLG) equation that describes the dynamics of a macroscopic magnetic moment finds its limit of validity at very short times. The reason for this limit is well understood in terms of separation of the characteristic time scales between slow degrees of freedom (the magnetization) and fast degrees of freedom. The fast degrees of freedom are introduced as the variation of the angular momentum responsible for the inertia. In order to study the effect of the fast degrees of freedom on the precession, we calculate the geometric phase of the magnetization (i.e. the Hannay angle) and the corresponding magnetic monopole. In the case of the pure precession (the slow manifold), a simple expression of the magnetic monopole is given as a function of the slowness parameter, i.e. as a function of the ratio of the slow over the fast characteristic times.

Guma, nobre cavaleiro do mar, e a lusitanidade mítica em Mar Morto = Guma, noble knight of the sea and the mythical lusitanidade in Mar Morto

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Angelini, Paulo Ricardo Kralik

2011-01-01

Full Text Available Mar Morto, um dos textos mais representativos do escritor Jorge Amado, reatualiza importantes mitos de tradição lusitana, percebidos por Gilbert Durand, e apresenta um personagem que corporifica os ideais de uma lusitanidade mítica, através de seu caráter guerreiro. Guma, o marítimo mais popular de Amado, traz em sua trajetória uma conduta heroica digna do imaginário cavalheiresco. Sujeito predestinado, que não se conforma com os limites impostos, Guma carrega com ele uma audácia do impossível que o faz ser escolhido pela deusa Iemanjá, sua fiel protetora. Ao Galaaz da Bahia, em diálogo com A Demanda do Santo Graal, será destinado um lugar heroico no imaginário do povo do cais: o salvador oculto que um dia retornará

Magnetohydrodynamic Turbulence and the Geodynamo

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Shebalin, John V.

2014-01-01

The ARES Directorate at JSC has researched the physical processes that create planetary magnetic fields through dynamo action since 2007. The "dynamo problem" has existed since 1600, when William Gilbert, physician to Queen Elizabeth I, recognized that the Earth was a giant magnet. In 1919, Joseph Larmor proposed that solar (and by implication, planetary) magnetism was due to magnetohydrodynamics (MHD), but full acceptance did not occur until Glatzmaier and Roberts solved the MHD equations numerically and simulated a geomagnetic reversal in 1995. JSC research produced a unique theoretical model in 2012 that provided a novel explanation of these physical observations and computational results as an essential manifestation of broken ergodicity in MHD turbulence. Research is ongoing, and future work is aimed at understanding quantitative details of magnetic dipole alignment in the Earth as well as in Mercury, Jupiter and its moon Ganymede, Saturn, Uranus, Neptune, and the Sun and other stars.