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  1. Another perspective on Bennett's (2014)

    African Journals Online (AJOL)

    Kate H

    Linguistics and Language Studies Program, Glendon College, York ... [ann] within the confines of Optimality Theory (OT) and Surface Correspondence (SC). My ... Faraclas (1984), quoted in Bennett (2014): “If the initial consonant is a nasal ...

  2. Thinking Visually: An Interview with Scott Bennett.

    Science.gov (United States)

    Gamble, Harriet

    2002-01-01

    Presents an interview with Scott Bennett, an artist of abstract art and traditional craft. Focuses on issues such as the role of art in his life, how his art has developed over time, and his process of creating his works of art. Includes directions for a glazing project. (CMK)

  3. On the Education of Bennett Reimer

    Science.gov (United States)

    Woodford, Paul

    2015-01-01

    This paper reviews some of the social, historical, and political forces and events that influenced the development of Bennett Reimer's early philosophy of music education in the late 1950s and continuing to his death in 2013. John Dewey's ideas about the moral and political purposes of art education are employed as critical tools for understanding…

  4. Clinical importance of voluntary and induced Bennett movement.

    Science.gov (United States)

    Tupac, R G

    1978-07-01

    A total of 136 dentulous patients were divided into three groups for purposes of quantitative pantographic comparison of voluntary and induced Bennett movement. The effects of patient age and operator experience on recording the Bennett movement were also studied. The results indicates that for patients studied with Bennett movement iduced in the manner described: 1. Experienced operators can obtain more induced Bennett movement that inexperienced operators. 2. Inducing Bennett movement has a greater effect on the immediate side shift component than it has on the progressive side shift component. 3. For older individuals the amount and direction of induced immediate side shift is greater than for younger patients, statistically highly significant, and therefore clinically important. In conclusion, if the objective of a pantographic survey is to record the complete capacity of the joint to move, *lateral jaw movements must be induced.

  5. Entropy and Computation: The Landauer-Bennett Thesis Reexamined

    Directory of Open Access Journals (Sweden)

    Orly Shenker

    2013-08-01

    Full Text Available The so-called Landauer-Bennett thesis says that logically irreversible operations (physically implemented such as erasure necessarily involve dissipation by at least kln2 per bit of lost information. We identify the physical conditions that are necessary and sufficient for erasure and show that the thesis does not follow from the principles of classical mechanics. In particular, we show that even if one assumes that information processing is constrained by the laws of classical mechanics, it need not be constrained by the Second Law of thermodynamics.

  6. Address by William J. Bennett, United States Secretary of Education. (Harvard University, Cambridge, Massachusetts).

    Science.gov (United States)

    Bennett, William J.

    The extent to which U.S. colleges and universities contribute to the fulfillment of students' lives is discussed by Secretary of Education William Bennett in an address to Harvard University. Secretary Bennett's observations are based on his experiences as a law student, freshman proctor, and tutor at Harvard University, as well as his subsequent…

  7. Concepts - Not just yardsticks, but also heuristics: rebutting Hacker and Bennett

    NARCIS (Netherlands)

    Keestra, M.; Cowley, S.J.

    2011-01-01

    In their response to our article (Keestra and Cowley, 2009), Hacker and Bennett charge us with failing to understand the project of their book Philosophical Foundations of Neuroscience (PFN; Bennett and Hacker, 2003) and do this by discussing foundationalism, linguistic conservatism and the

  8. Skin pathology in Hawaiian goldring surgeonfish, Ctenochaetus strigosus (Bennett)

    Science.gov (United States)

    Work, Thierry M.; Aeby, Greta S.

    2014-01-01

    Twenty-eight goldring surgeonfish, Ctenochaetus strigosus (Bennett), manifesting skin lesions and originating from the north-western and main Hawaiian Islands were examined. Skin lesions were amorphous and ranged from simple dark or light discolouration to multicoloured tan to white sessile masses with an undulant surface. Skin lesions covered 2–66% of the fish surface, and there was no predilection for lesions affecting a particular part of the fish. Males appeared over-represented. Microscopy revealed the skin lesions to be hyperplasia, melanophoromas or iridophoromas. The presence of skin tumours in a relatively unspoiled area of Hawaii is intriguing. Explaining their distribution, cause and impact on survivorship of fish all merit further study because C. strigosus is an economically important fish in the region.

  9. Nuclear pursuits: The scientific biography of Wilfrid Bennett Lewis

    International Nuclear Information System (INIS)

    Fawcett, R.

    1994-01-01

    The scientific life of Wilfrid Bennett Lewis. The biography covers Lewis's role in the development of radar, his tenure as the Chief Superintendent of the Telecommunications Research Establishment at Malvern through his heading of the then fledgling Canadian nuclear research facility in Chalk River, Ontario. Lewis's drive, intelligence, and remarkable organizational skills placed him at the forefront of Canada's nuclear program. His influence lead to a collaboration between Atomic Energy of Canada Limited and Ontario Hydro that ultimately resulted in the development of the CANDU reactor. His influence was also profound in the near by town of Deep River with one prime legacy being the W.B. Lewis Library. Lewis's bibliography is included in the biography

  10. Sinkhole investigated at B.C. Hydro's Bennett Dam

    International Nuclear Information System (INIS)

    Anon.

    1996-01-01

    The cause of a sinkhole which appeared in a roadway crossing an earth filled dam in B. C., was discussed. The hole measured 6 ft. across and 20 ft. deep, and occurred in B.C. Hydro's W.A.C. Bennett Dam which measures 600 ft. high, 2,600 ft. wide at the base and 35 ft. wide at the crest. The cause of the sinkhole is not known, but it is believed that a weakness in the dam may have found its way to the surface via a pipe connected to a bedrock settlement gauge buried within the dam. Sonar and ground penetrating radar were used to examine the area. The hole has been filled with gravel and monitoring continues. Experts do not anticipate immediate risk of dam failure. 1 fig

  11. Dean C. Bennett d/b/a Affordable Tuckpointing Information Sheet

    Science.gov (United States)

    Dean C. Bennett d/b/a Affordable Tuckpointing (the Company) is located in Arnold, Missouri. The Complaint involves renovation activities conducted at property constructed prior to 1978, located in St. Louis, Missouri.

  12. WAC Bennett Dam - the characterization of a crest sinkhole

    Energy Technology Data Exchange (ETDEWEB)

    Stewart, R.A.; Gaffran, P.C. [British Columbia Hydro, Burnaby, BC (Canada); Watts, B.D. [Klohn-Crippen Consultants Ltd., Richmond, BC (Canada); Sobkowicz, J.C. [Thurber Engineering Ltd., Vancouver, BC (Canada); Kupper, A.G. [AGRA Earth and Environmental, Edmonton, AB (Canada)

    1998-11-01

    In June, 1996, a small hole was discovered in the asphaltic concrete road on the crest of the 183 m high WAC Bennett Dam on the Peace River in northeastern British Columbia. Examination of the hole resulted in a sinkhole on the dam crest. The sinkhole was 2.5 m in diameter and 7 m deep. Speculation was that the cavity was likely associated in some way with a buried survey benchmark tube. An investigation was immediately planned and executed to characterize the sinkhole, to determine the extent of damage and the safety status of this very large dam. British Columbia`s Dam Safety Regulator made the decision to lower the reservoir level. During the reservoir drawdown, various surface geophysical techniques were used to investigate the condition of the dam beyond the sinkholes. Intrusive investigations of the sinkhole were also planned. This involved trial drilling and downhole geophysical surveys in intact portions of the core at locations far from the sinkhole. The objectives and criteria developed for the investigation program are summarized. Scope of key activities at the sinkhole and important lessons learned during the investigation are also described. 9 refs., 15 figs.

  13. Review of Math for Life by Jeffrey Bennett

    Directory of Open Access Journals (Sweden)

    Eric Gaze

    2012-07-01

    Full Text Available Math for Life: Crucial Ideas You Didn’t Learn in School by Jeffrey Bennett is a general interest mathematics book focused on the topic of innumeracy, the mathematics required to be numerate and why quantitative literacy is important for an educated citizenry. This book raises the very important question of why the mathematics we need to navigate our daily world is given such short shrift in our K-12 math education system. Math for Life is directed at multiple constituencies. For those wishing to develop their quantitative literacy, it provides a primer of the crucial topics, explained with compelling examples in an accessible easy-to-read style. For educators, it provides a valuable synopsis of what the math education curriculum should have at its core. I conclude the review with an analysis of the book’s contributions to these varied domains. In particular, I call into question the algebra-centric high school curriculum and explore possible alternatives to the current myopic focus on calculus in our broken mathematics education system.

  14. Radiative collapse of a Bennett-relaxed z-pinch

    International Nuclear Information System (INIS)

    Turner, L.

    1989-01-01

    The global evolution of a z-pinch has been studied with the assumption of a relaxed state consisting of ions and electrons, each in a rigidly drifting isothermal Maxwellian distribution. This speculative approach has the pragmatic feature of possessing phenomenologically useful global parameters such as drift velocity and temperature that vary in accordance with global physical quantities such as energy and entropy. The plasma gains energy from a time-dependent electric field by means of Poynting's vector. Coulomb collisions between electrons and ions is calculated with a Fokker-Planck treatment analogous to that used by Dreicer to calculate runaways. For a variety of initial conditions and time-independent applied electric fields, the pinch evolution always culminates in a time-independent (attractor) state whose current is the Pease-Braginskii current and whose final radius is proportional to (line density)/sup 3/4//(electric field)/sup 1/2/. Before the final state is attained, the pinch may bounce toward and away from a highly collapsed state. For the case of a Bennett pinch, the classical limit of the resistivity is attained when the line density is much greater than 4πm/sub e//e 2 μ/sub o/; i.e., 3.55 /times/ 10 14 m/sup /minus/1/. 6 refs., 2 figs

  15. Calculation of crystalline lens power in chickens with a customized version of Bennett's equation.

    Science.gov (United States)

    Iribarren, Rafael; Rozema, Jos J; Schaeffel, Frank; Morgan, Ian G

    2014-03-01

    This paper customizes Bennett's equation for calculating lens power in chicken eyes from refraction, keratometry and biometry. Previously published data on refraction, corneal power, anterior chamber depth, lens thickness, lens radii of curvature, axial length and eye power in chickens aged 10-90 days were used to estimate Gullstrand's lens power and Bennett's lens power for chicken eyes, and to calculate the lens equivalent refractive index. Bennett's A and B constants for the front and back surface powers of the lens were calculated for data measured from day 10 to 90 at 10 day intervals, and mean customized constants were calculated. The mean customized constants for Bennett's equation for chicks were A=0.574±0.023 and B=0.379±0.021. As found previously, lens power decreases with age in chicks, while corneal power decreases and axial length increases. The lens equivalent refractive index decreases with age from 10 to 90 days after hatching. Bennett's equation can be used to calculate lens power in chicken eyes for studies on animal myopia, using standard biometry. Copyright © 2014 Elsevier B.V. All rights reserved.

  16. Mobile assemblies of Bennett linkages from four-crease origami patterns

    Science.gov (United States)

    Zhang, Xiao; Chen, Yan

    2018-02-01

    This paper deals with constructing mobile assemblies of Bennett linkages inspired by four-crease origami patterns. A transition technique has been proposed by taking the thick-panel form of an origami pattern as an intermediate bridge. A zero-thickness rigid origami pattern and its thick-panel form share the same sector angles and folding behaviours, while the thick-panel origami and the mobile assembly of linkages are kinematically equivalent with differences only in link profiles. Applying this transition technique to typical four-crease origami patterns, we have found that the Miura-ori and graded Miura-ori patterns lead to assemblies of Bennett linkages with identical link lengths. The supplementary-type origami patterns with different mountain-valley crease assignments correspond to different types of Bennett linkage assemblies with negative link lengths. And the identical linkage-type origami pattern generates a new mobile assembly. Hence, the transition technique offers a novel approach to constructing mobile assemblies of spatial linkages from origami patterns.

  17. Bennett replies

    International Nuclear Information System (INIS)

    Bennett, W.R. Jr.

    1989-01-01

    A detailed analysis of the systematic error in the measurements made by Bennet is given. It is also shown that Long has substantially overestimated the size of effect as applied to Bennet's measurements to show a short-range failure of the equivalence principle

  18. Bennett clocking of quantum-dot cellular automata and the limits to binary logic scaling

    International Nuclear Information System (INIS)

    Lent, Craig S; Liu Mo; Lu Yuhui

    2006-01-01

    We examine power dissipation in different clocking schemes for molecular quantum-dot cellular automata (QCA) circuits. 'Landauer clocking' involves the adiabatic transition of a molecular cell from the null state to an active state carrying data. Cell layout creates devices which allow data in cells to interact and thereby perform useful computation. We perform direct solutions of the equation of motion for the system in contact with the thermal environment and see that Landauer's Principle applies: one must dissipate an energy of at least k B T per bit only when the information is erased. The ideas of Bennett can be applied to keep copies of the bit information by echoing inputs to outputs, thus embedding any logically irreversible circuit in a logically reversible circuit, at the cost of added circuit complexity. A promising alternative which we term 'Bennett clocking' requires only altering the timing of the clocking signals so that bit information is simply held in place by the clock until a computational block is complete, then erased in the reverse order of computation. This approach results in ultralow power dissipation without additional circuit complexity. These results offer a concrete example in which to consider recent claims regarding the fundamental limits of binary logic scaling

  19. Simple proof of the unconditional security of the Bennett 1992 quantum key distribution protocol

    International Nuclear Information System (INIS)

    Zhang Quan; Tang Chaojing

    2002-01-01

    It is generally accepted that quantum key distribution (QKD) could supply legitimate users with unconditional security during their communication. Quite a lot of satisfactory efforts have been achieved on experimentations with quantum cryptography. However, when the eavesdropper has extra-powerful computational ability, has access to a quantum computer, for example, and can carry into execution any eavesdropping measurement that is allowed by the laws of physics, the security against such attacks has not been widely studied and rigorously proved for most QKD protocols. Quite recently, Shor and Preskill proved concisely the unconditional security of the Bennett-Brassard 1984 (BB84) protocol. Their method is highly valued for its clarity of concept and concision of form. In order to take advantage of the Shor-Preskill technique in their proof of the unconditional security of the BB84 QKD protocol, we introduced in this paper a transformation that can translate the Bennett 1992 (B92) protocol into the BB84 protocol. By proving that the transformation leaks no more information to the eavesdropper, we proved the unconditional security of the B92 protocol. We also settled the problem proposed by Lo about how to prove the unconditional security of the B92 protocol with the Shor-Preskill method

  20. Volar dislocation of the index carpometacarpal joint in association with a Bennett's fracture of the thumb: a rare injury pattern.

    LENUS (Irish Health Repository)

    Dillon, J P

    2012-02-03

    We describe a case of volar dislocation of the index carpometacarpal (CMC) joint in association with a Bennett\\'s fracture of the thumb following a motorcycle accident. Volar dislocation of the index carpometacarpal joint is an exceedingly rare but easily missed injury, with only a few reported cases in the literature. This report highlights the importance of a true lateral radiograph and close scrutiny of the film to detect this injury. Closed reduction supplemented with Kirschner wire fixation restored normal anatomical relations and achieved an excellent clinical result.

  1. Shor-Preskill-type security proof for concatenated Bennett-Brassard 1984 quantum-key-distribution protocol

    International Nuclear Information System (INIS)

    Hwang, Won-Young; Matsumoto, Keiji; Imai, Hiroshi; Kim, Jaewan; Lee, Hai-Woong

    2003-01-01

    We discuss a long code problem in the Bennett-Brassard 1984 (BB84) quantum-key-distribution protocol and describe how it can be overcome by concatenation of the protocol. Observing that concatenated modified Lo-Chau protocol finally reduces to the concatenated BB84 protocol, we give the unconditional security of the concatenated BB84 protocol

  2. Standard model and fine structure constant at Planck distances in the Bennett-Brene-Nielsen-Picek random dynamics

    International Nuclear Information System (INIS)

    Laperashvili, L.V.

    1994-01-01

    The first part of the present paper contains a review of papers by Nielsen, Bennett, Brene and Picek which underly the model called random dynamics. The second part of the paper is devoted to calculating the fine structure constant by means of the path integration in the U(1)-lattice gauge theory

  3. Sinkhole investigated at B.C. Hydro`s Bennett Dam

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1996-07-01

    The cause of a sinkhole which appeared in a roadway crossing an earth filled dam in B. C., was discussed. The hole measured 6 ft. across and 20 ft. deep, and occurred in B.C. Hydro`s W.A.C. Bennett Dam which measures 600 ft. high, 2,600 ft. wide at the base and 35 ft. wide at the crest. The cause of the sinkhole is not known, but it is believed that a weakness in the dam may have found its way to the surface via a pipe connected to a bedrock settlement gauge buried within the dam. Sonar and ground penetrating radar were used to examine the area. The hole has been filled with gravel and monitoring continues. Experts do not anticipate immediate risk of dam failure. 1 fig.

  4. Review: Andrew Bennett & Jeffrey T. Checkel (Eds. (2015. Process Tracing: From Metaphor to Analytic Tool

    Directory of Open Access Journals (Sweden)

    Felix Anderl

    2015-09-01

    Full Text Available In this review, I argue that this textbook edited by BENNETT and CHECKEL is exceptionally valuable in at least four aspects. First, with regards to form, the editors provide a paragon of how an edited volume should look: well-connected articles "speak to" and build on each other. The contributors refer to and grapple with the theoretical framework of the editors who, in turn, give heed to the conclusions of the contributors. Second, the book is packed with examples from research practice. These are not only named but thoroughly discussed and evaluated for their methodological potential in all chapters. Third, the book aims at improving and popularizing process tracing, but does not shy away from systematically considering the potential weaknesses of the approach. Fourth, the book combines and bridges various approaches to (mostly qualitative methods and still manages to provide abstract and easily accessible standards for making "good" process tracing. As such, it is a must-read for scholars working with qualitative methods. However, BENNETT and CHECKEL struggle with fulfilling their promise of bridging positivist and interpretive approaches, for while they do indeed take the latter into account, their general research framework remains largely unchanged by these considerations. On these grounds, I argue that, especially for scholars in the positivist camp, the book can function as a "how-to" guide for designing and implementing research. Although this may not apply equally to interpretive researchers, the book is still a treasure chest for them, providing countless conceptual clarifications and potential pitfalls of process tracing practice. URN: http://nbn-resolving.de/urn:nbn:de:0114-fqs1503187

  5. Intercept-resend attacks in the Bennett-Brassard 1984 quantum-key-distribution protocol with weak coherent pulses

    International Nuclear Information System (INIS)

    Curty, Marcos; Luetkenhaus, Norbert

    2005-01-01

    Unconditional security proofs of the Bennett-Brassard 1984 protocol of quantum key distribution have been obtained recently. These proofs cover also practical implementations that utilize weak coherent pulses in the four signal polarizations. Proven secure rates leave open the possibility that new proofs or new public discussion protocols will obtain larger rates over increased distance. In this paper we investigate limits to the error rate and signal losses that can be tolerated by future protocols and proofs

  6. Scintillation has minimal impact on far-field Bennett-Brassard 1984 protocol quantum key distribution

    Energy Technology Data Exchange (ETDEWEB)

    Shapiro, Jeffrey H. [Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

    2011-09-15

    The effect of scintillation, arising from propagation through atmospheric turbulence, on the sift and error probabilities of a quantum key distribution (QKD) system that uses the weak-laser-pulse version of the Bennett-Brassard 1984 (BB84) protocol is evaluated. Two earth-space scenarios are examined: satellite-to-ground and ground-to-satellite transmission. Both lie in the far-field power-transfer regime. This work complements previous analysis of turbulence effects in near-field terrestrial BB84 QKD [J. H. Shapiro, Phys. Rev. A 67, 022309 (2003)]. More importantly, it shows that scintillation has virtually no impact on the sift and error probabilities in earth-space BB84 QKD, something that has been implicitly assumed in prior analyses for that application. This result contrasts rather sharply with what is known for high-speed laser communications over such paths, in which deep, long-lived scintillation fades present a major challenge to high-reliability operation.

  7. 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.

  8. Use of Bennett's Hierarchical Model in the Evaluation of the Extension Education Program for Cacao Farmers in the Northeast Region of the Dominican Republic. Summary of Research 54.

    Science.gov (United States)

    De los Santos, Saturnino; Norland, Emmalou Van Tilburg

    A study evaluated the cacao farmer training program in the Dominican Republic by testing hypothesized relationships among reactions, knowledge and skills, attitudes, aspirations, and some selected demographic characteristics of farmers who attended programs. Bennett's hierarchical model of program evaluation was used as the framework of the study.…

  9. Linear and nonlinear development of m=0 instability in a diffuse Bennett Z-pinch equilibrium with sheared axial flow

    International Nuclear Information System (INIS)

    Paraschiv, I.; Bauer, B. S.; Lindemuth, I. R.; Makhin, V.

    2010-01-01

    The effect of sheared axial flow on the Z-pinch sausage instability has been examined with two-dimensional magnetohydrodynamic simulations. Diffuse Bennett equilibria in the presence of axial flows with parabolic and linear radial profiles have been considered, and a detailed study of the linear and nonlinear development of small perturbations from these equilibria has been performed. The consequences of both single-wavelength and random-seed perturbations were calculated. It was found that sheared flows changed the internal m=0 mode development by reducing the linear growth rates, decreasing the saturation amplitude, and modifying the instability spectrum. High spatial frequency modes were stabilized to small amplitudes and only long wavelengths continued to grow. Full stability was obtained for supersonic plasma flows.

  10. Selectividad de pecoreo de la abeja sin aguijón Melipona beecheii Bennett en la EEPF "Indio Hatuey", Matanzas Foraging selectivity of the stingless bee Melipona beecheii Bennett at the EEPF "Indio Hatuey", Matanzas

    Directory of Open Access Journals (Sweden)

    Leydi Fonte

    2012-09-01

    Full Text Available El trabajo se realizó en la EEPF "Indio Hatuey", con el objetivo de determinar la selectividad de pecoreo de la abeja sin aguijón (Melipona beecheii Bennett, mediante el análisis palinológico de muestras de miel y polen. Previamente se realizó un inventario florístico del área, alrededor del emplazamiento del meliponario, basado en el radio de vuelo de las abejas. En las silvopasturas se utilizó el método de la escalera, y en el caso de los cercados vivos se contaron los árboles cada 10 m y se reflejaron en el croquis del área muestreada. En las arboledas y los traspatios de las viviendas se contaron y clasificaron todos los árboles existentes, y en el estrato herbáceo se aplicó el método de los pasos. En ambos tipos de muestra predominaron los granos de polen de guayaba (Psidium guajava y almácigo (Bursera simaruba, seguidos por los de dormidera (Mimosa pudica, sensitiva (Mimosa pigra, y naranjo y limonero (Citrus spp.. Se concluye que las abejas meliponas presentaron una marcada selectividad de pecoreo por las floraciones del almácigo y la guayaba, y que la Estación cuenta con el potencial melífero suficiente para que puedan desarrollarse favorablemente, sobre una base alimentaria sustentable.The work was conducted at the EEPF "Indio Hatuey" to determine the foraging selectivity of stingless bees (Melipona beecheii Bennett through the analysis of honey and pollen samples. A floristic inventory of the area had been previously made around the apiary location, taking into consideration the bees' flight radius. The stair method was used in the silvopastures, and in the case of the living fences the trees were counted every 10 meters and this was shown in the sketch of the sampled area. In the groves and yards all trees where counted and classified, and in the herbaceous stratum the step method was applied. The pollen grains of guava (Psidium guajava and mastic tree (Bursera simaruba predominated in both kinds of samples

  11. Investigation of geophysical methods for assessing seepage and internal erosion in embankment dams : a study of through-dam seismic testing at WAC Bennett Dam

    Energy Technology Data Exchange (ETDEWEB)

    Gaffran, P.; Jeffries, M. [BC Hydro, Burnaby, BC (Canada)

    2005-07-15

    Crosshole tomography is used to establish the distribution of seismic velocity between drill holes. The through-dam mode takes advantage of the triangular cross-section of earth embankments, obviating the need for drill holes. Seismic energy, generated on one face of the dam, passes underneath the crest and is detected by sensors arrayed on the opposite face. The sinkholes discovered at WAC Bennett Dam in 1996 provided an opportunity to test the procedure. Using p-wave energy, two series of measurements were conducted, notably one immediately before remediation of one sinkhole, and a second one shortly after the sinkhole was repaired. The known defect was successfully imaged by the first round of measurements. This report presented the results of an investigation of the through-dam seismic method using propagation of seismic waves through a dam from upstream to downstream, or vice-versa. The purpose of the study was to determine if this procedure could characterize the distribution of seismic velocity within a dam in an accurate and cost effective manner. The report presented the methods of velocity testing such as crosshole and downhole, and tomography; and through-dam measurements. Background to the Bennett Dam studies was also provided, with particular reference to the Bennett Dam sinkholes; sinkhole investigations; working hypothesis for sinkhole development; sinkhole number one characterization; and sinkhole remediation. An analysis of compression wave testing at Bennett Dam and shear wave testing was then offered. Other topics that were discussed included field test procedures; methodologies for data processing; p-waves versus s-waves; applicability of the research; and costs of through-dam surveys. It was concluded that under the right circumstances, through-dam seismic testing was capable of detecting changed conditions in an embankment dam. 15 refs., 2 tabs., 41 figs., 1 appendix.

  12. Update on geographic spread of invasive lionfishes (Pterois volitans [Linnaeus, 1758] and P. miles [Bennett, 1828]) in the Western North Atlantic Ocean, Caribbean Sea and Gulf of Mexico

    Science.gov (United States)

    Schofield, Pamela J.

    2010-01-01

    The Indo-Pacific lionfishes (Pterois volitans [Linnaeus, 1758] and P. miles [Bennett, 1828]: Family Scorpaenidae) are the first nonnative marine fishes to establish in the Western North Atlantic/Caribbean region. The chronology of the invasion was reported last year (Schofield 2009) using records from the US Geological Survey's Nonindigenous Aquatic Species database. This article provides an update of lionfish geographic spread (as of October 2010) and predictions of future range.

  13. Athabasca Chipewyan First Nation inquiry : report on WAC Bennett Dam and damage to Indian Reserve no. 201 claim

    International Nuclear Information System (INIS)

    1998-03-01

    Aspects of a claim regarding the WAC Bennett Dam in British Columbia and damage to Indian Reserve 201 are discussed. An inquiry was held to determine whether the Crown owes an outstanding obligation to the Athabasca Chipewyan First Nation regarding damages sustained on their reserve as a result of the construction and operation of the dam. The claim alleges that the drying out of the Peace-Athabasca Delta severely affected the First Nation's treaty rights to hunt, trap and fish for food in the area. It was noted that the dam was constructed in the early 1960s before the establishment of mandatory environmental assessment procedures which are in place today to ensure that projects comply with certain safeguards and minimum standards. In 1971, the Peace-Athabasca Delta Project Group (PADPG) was established to review and to assess the environmental damage caused by the dam. The group was also advised to implement a strategy to mitigate the ongoing environmental deterioration in the Delta. It was concluded that Canada breached its statutory and fiduciary obligations to the Athabasca Chipewyan First nation by failing to take reasonable measures to prevent, to mitigate, or to seek compensation for unjustified infringement on its treaty rights and for environmental damages to IR 201. In this report the Commission recommends that the claim by the Athabasca Chipewyan First Nation be accepted for negotiation under Canada's specific claims policy. figs

  14. Enhanced Sampling in Free Energy Calculations: Combining SGLD with the Bennett's Acceptance Ratio and Enveloping Distribution Sampling Methods.

    Science.gov (United States)

    König, Gerhard; Miller, Benjamin T; Boresch, Stefan; Wu, Xiongwu; Brooks, Bernard R

    2012-10-09

    One of the key requirements for the accurate calculation of free energy differences is proper sampling of conformational space. Especially in biological applications, molecular dynamics simulations are often confronted with rugged energy surfaces and high energy barriers, leading to insufficient sampling and, in turn, poor convergence of the free energy results. In this work, we address this problem by employing enhanced sampling methods. We explore the possibility of using self-guided Langevin dynamics (SGLD) to speed up the exploration process in free energy simulations. To obtain improved free energy differences from such simulations, it is necessary to account for the effects of the bias due to the guiding forces. We demonstrate how this can be accomplished for the Bennett's acceptance ratio (BAR) and the enveloping distribution sampling (EDS) methods. While BAR is considered among the most efficient methods available for free energy calculations, the EDS method developed by Christ and van Gunsteren is a promising development that reduces the computational costs of free energy calculations by simulating a single reference state. To evaluate the accuracy of both approaches in connection with enhanced sampling, EDS was implemented in CHARMM. For testing, we employ benchmark systems with analytical reference results and the mutation of alanine to serine. We find that SGLD with reweighting can provide accurate results for BAR and EDS where conventional molecular dynamics simulations fail. In addition, we compare the performance of EDS with other free energy methods. We briefly discuss the implications of our results and provide practical guidelines for conducting free energy simulations with SGLD.

  15. Medición del tiempo de generación de Neutrones Prontos por los Métodos de Feynman y Bennett

    OpenAIRE

    Fiestas Urbina, Carlos Job; Fiestas Urbina, Carlos Job

    1982-01-01

    El propósito principal del presente trabajo es determinar el tiempo de generación de neutrones prontos reducidos, la constante de decaimiento de los neutrones, correspondientes a una reactividad, la eficiencia del detector de neutrones de la segunda cadena de arranque, para el reactor de potencia cero con la configuración nuclear #52; haciendo un análisis estadístico del contaje de neutrones mediante los modelos de Feyman y Bennett. La diferencia de estos métodos radica en que el primero no ...

  16. Critical analysis of the Bennett-Riedel attack on secure cryptographic key distributions via the Kirchhoff-Law-Johnson-noise scheme.

    Directory of Open Access Journals (Sweden)

    Laszlo B Kish

    Full Text Available Recently, Bennett and Riedel (BR (http://arxiv.org/abs/1303.7435v1 argued that thermodynamics is not essential in the Kirchhoff-law-Johnson-noise (KLJN classical physical cryptographic exchange method in an effort to disprove the security of the KLJN scheme. They attempted to demonstrate this by introducing a dissipation-free deterministic key exchange method with two batteries and two switches. In the present paper, we first show that BR's scheme is unphysical and that some elements of its assumptions violate basic protocols of secure communication. All our analyses are based on a technically unlimited Eve with infinitely accurate and fast measurements limited only by the laws of physics and statistics. For non-ideal situations and at active (invasive attacks, the uncertainly principle between measurement duration and statistical errors makes it impossible for Eve to extract the key regardless of the accuracy or speed of her measurements. To show that thermodynamics and noise are essential for the security, we crack the BR system with 100% success via passive attacks, in ten different ways, and demonstrate that the same cracking methods do not function for the KLJN scheme that employs Johnson noise to provide security underpinned by the Second Law of Thermodynamics. We also present a critical analysis of some other claims by BR; for example, we prove that their equations for describing zero security do not apply to the KLJN scheme. Finally we give mathematical security proofs for each BR-attack against the KLJN scheme and conclude that the information theoretic (unconditional security of the KLJN method has not been successfully challenged.

  17. Critical analysis of the Bennett-Riedel attack on secure cryptographic key distributions via the Kirchhoff-Law-Johnson-noise scheme.

    Science.gov (United States)

    Kish, Laszlo B; Abbott, Derek; Granqvist, Claes G

    2013-01-01

    Recently, Bennett and Riedel (BR) (http://arxiv.org/abs/1303.7435v1) argued that thermodynamics is not essential in the Kirchhoff-law-Johnson-noise (KLJN) classical physical cryptographic exchange method in an effort to disprove the security of the KLJN scheme. They attempted to demonstrate this by introducing a dissipation-free deterministic key exchange method with two batteries and two switches. In the present paper, we first show that BR's scheme is unphysical and that some elements of its assumptions violate basic protocols of secure communication. All our analyses are based on a technically unlimited Eve with infinitely accurate and fast measurements limited only by the laws of physics and statistics. For non-ideal situations and at active (invasive) attacks, the uncertainly principle between measurement duration and statistical errors makes it impossible for Eve to extract the key regardless of the accuracy or speed of her measurements. To show that thermodynamics and noise are essential for the security, we crack the BR system with 100% success via passive attacks, in ten different ways, and demonstrate that the same cracking methods do not function for the KLJN scheme that employs Johnson noise to provide security underpinned by the Second Law of Thermodynamics. We also present a critical analysis of some other claims by BR; for example, we prove that their equations for describing zero security do not apply to the KLJN scheme. Finally we give mathematical security proofs for each BR-attack against the KLJN scheme and conclude that the information theoretic (unconditional) security of the KLJN method has not been successfully challenged.

  18. Multiscale Free Energy Simulations: An Efficient Method for Connecting Classical MD Simulations to QM or QM/MM Free Energies Using Non-Boltzmann Bennett Reweighting Schemes

    Science.gov (United States)

    2015-01-01

    The reliability of free energy simulations (FES) is limited by two factors: (a) the need for correct sampling and (b) the accuracy of the computational method employed. Classical methods (e.g., force fields) are typically used for FES and present a myriad of challenges, with parametrization being a principle one. On the other hand, parameter-free quantum mechanical (QM) methods tend to be too computationally expensive for adequate sampling. One widely used approach is a combination of methods, where the free energy difference between the two end states is computed by, e.g., molecular mechanics (MM), and the end states are corrected by more accurate methods, such as QM or hybrid QM/MM techniques. Here we report two new approaches that significantly improve the aforementioned scheme; with a focus on how to compute corrections between, e.g., the MM and the more accurate QM calculations. First, a molecular dynamics trajectory that properly samples relevant conformational degrees of freedom is generated. Next, potential energies of each trajectory frame are generated with a QM or QM/MM Hamiltonian. Free energy differences are then calculated based on the QM or QM/MM energies using either a non-Boltzmann Bennett approach (QM-NBB) or non-Boltzmann free energy perturbation (NB-FEP). Both approaches are applied to calculate relative and absolute solvation free energies in explicit and implicit solvent environments. Solvation free energy differences (relative and absolute) between ethane and methanol in explicit solvent are used as the initial test case for QM-NBB. Next, implicit solvent methods are employed in conjunction with both QM-NBB and NB-FEP to compute absolute solvation free energies for 21 compounds. These compounds range from small molecules such as ethane and methanol to fairly large, flexible solutes, such as triacetyl glycerol. Several technical aspects were investigated. Ultimately some best practices are suggested for improving methods that seek to connect

  19. Geographic extent and chronology of the invasion of non-native lionfish (Pterois volitans [Linnaeus 1758] and P. miles [Bennett 1828]) in the Western North Atlantic and Caribbean Sea

    Science.gov (United States)

    Schofield, Pamela J.

    2009-01-01

    The Indo-Pacific lionfishes (Pterois volitans [Linnaeus 1758] and P. miles [Bennett 1828]: Family Scorpaenidae) are the first non-native marine fishes to establish in the Western North Atlantic. The chronology of the invasion is reported here using records from the US Geological Survey's Nonindigenous Aquatic Species database. Currently, lionfish are established off the Atlantic coast of the USA from the Florida Keys to Cape Hatteras (North Carolina), the Great Antilles, Bermuda, Bahamas, Cayman Islands and Turks and Caicos. The species have been reported from only one island in the Lesser Antilles (St. Croix), but it is not yet established there. Lionfish are established in Mexico, Honduras and Costa Rica. Reports have come from the Gulf of Mexico (Florida), Belize, Panama and Colombia; although lionfish are not considered established in these localities at this time (August 2009), invasion is likely imminent.

  20. Bennett's fracture: a direct volar surgical approach

    African Journals Online (AJOL)

    We performed 15 cadaver dissections of the forearm, wrist and hand at the Department of Human. Anatomy, Chiromo Campus, University of Nairobi. The median nerve was identified and exposed by dividing the superficial flexor muscles and brachioradialis. The median nerve was found entering the forearm from the cubital ...

  1. A new species of Dermopristis Kearn, Whittington & Evans-Gowing, 2010 (Monogenea: Microbothriidae), with observations on associations between the gut diverticula and reproductive system and on the presence of denticles in the nasal fossae of the host Glaucostegus typus (Bennett) (Elasmobranchii: Rhinobatidae).

    Science.gov (United States)

    Whittington, Ian D; Kearn, Graham C

    2011-09-01

    Dermopristis cairae n. sp. (Monogenea: Microbothriidae) is described from the skin and possibly from the nasal fossae of the giant shovel-nosed ray Glaucostegus typus (Bennett). The new species is distinguished from D. paradoxus Kearn, Whittington & Evans-Gowing, 2010 by its larger size, body shape, lack of transverse ridges on the ventral surface and absence of a seminal receptacle. Extensive short gut branches lie dorsal to the testes and adjacent to the coiled region of the vas deferens and the oötype, possibly reflecting high metabolic demand in these areas. Denticles are present in the lining of the nasal fossae of G. typus, providing a firm substrate for the cement-based attachment of a microbothriid. However, confirmation that D. cairae inhabits the nasal fossae of G. typus is required.

  2. Saving the Dust Bowl: "Big Hugh" Bennett's Triumph over Tragedy

    Science.gov (United States)

    Smith, Rebecca

    2007-01-01

    In the 1930s, years of injudicious cultivation had devastated 100 million acres of Kansas, Oklahoma, Texas, Colorado, and New Mexico. This was the Dust Bowl, and it exposed a problem that had silently plagued American agriculture for centuries--soil erosion. Farmers, scientists, and the government alike considered it trivial until Hugh Hammond…

  3. Ubuntu: An African Equity | Bennett | Potchefstroom Electronic Law ...

    African Journals Online (AJOL)

    AFRICAN JOURNALS ONLINE (AJOL) · Journals · Advanced Search · USING AJOL ... responsibility, trust and harmony. KEYWORDS: Ubuntu, equity, reconciliation, human dignity, humanity, social harmony, restorative justice, cultural heritage.

  4. The heart and hypothyroidism | Bennett | South African Medical ...

    African Journals Online (AJOL)

    The association of hypothyroidism with heart disease is reviewed. The. relative rarity of cardiac failure due to hypothyroidism is stressed, and structural abnormalities of the heart due to hypothyroidism are discussed. The clinical management of hypothyroid patients with heart disease is described.

  5. Biodiversity loss in Ghana: The human factor | Bennett-Lartey ...

    African Journals Online (AJOL)

    The country loses a great proportion of its biodiversity, due mainly to unacceptable practices like slash and burn agriculture, surface mining, construction activities and bushfires. Various conservation measures practiced in Ghana have been discussed. These include forest reserves, botanical gardens, arboreta, gene banks, ...

  6. Efficient algorithm for binary search enhancement | Bennett | Journal ...

    African Journals Online (AJOL)

    Log in or Register to get access to full text downloads. ... This paper presents an Enhanced Binary Search algorithm that ensures that search is performed if ... search region of the list, therefore enabling search to be performed in reduced time.

  7. Avatar, Identification, Pornography [by John Frow, with responses from Tony Bennett and Stephen Muecke

    Directory of Open Access Journals (Sweden)

    Katrina Schlunke (intro.

    2012-12-01

    Full Text Available Fictional character is textually constructed in the play between positions of enunciation and figural constructs in the storyworld, and these positions are cumulatively and complexly filled during the course of a prose narrative or a lyric or a film or gameplay. This article explores that work through a discussion of the role of avatars in digital gaming and of the inscription of the reader or viewer into pornography.

  8. The diets of littoral fish from the Cape Peninsula | Bennett | African ...

    African Journals Online (AJOL)

    Intertidal fish communities in the south·western Cape have a high density and biomass, implying that the fish are important consumers in the ntertidal zone. Stomach content analyses of 20 species were undertaken to ascertain which food resources are most heavily exploited and the extent to which the co-existing fish ...

  9. Integral Sustainable Design: Transformative Perspectives (by M. DeKay (Ed. with S. Bennett, 2011

    Directory of Open Access Journals (Sweden)

    Michael Schwartz

    2013-02-01

    Full Text Available Reviewed by Michael Schwartz Mark DeKay, Professor of Architecture and Director of Graduate Studies in the College of Architecture at the University of Tennessee, a prominent scholar-practitioner in the field of sustainable design, opens his latest book with the explicit intention that the volume “help create a breakthrough in the effectiveness of the Sustainable Design movement such that it is transformed to greater power, relevance, meaning and positive effect on people and Nature” (p. xxi. His approach is thoroughly integral, taking up Wilber’s classic integral theory, more or less a version of “Wilber-4,” clarifying and extending this meta-theory in service of creating and advancing sustainable design as discipline and practice.

  10. Basil, tea tree and clove essential oils as analgesics and anaesthetics in Amphiprion clarkii (Bennett, 1830

    Directory of Open Access Journals (Sweden)

    A. M. Correia

    2017-11-01

    Full Text Available Abstract In this study were evaluated the anaesthesia and analgesic effects of clove Eugenia caryophyllata, tea tree Melaleuca alternifolia and basil Ocimum basilicum essential oils (EO during handling of yellowtail clownfish Amphiprion clarkii. Juveniles (3.70 ± 0.75 cm and 1.03 ± 0.50 g; mean ± standard deviation were submitted to concentrations of 40, 50, 60, 70 and 80 µl L-1 of clove, 150, 200, 250, 300 and 350 µl L-1 of basil and 200, 300, 400, 500 and 600 µl L-1 of tea tree oils (n=10/concentration, previously defined in pilot tests. Individually and only once, fish from each treatment were placed in a glass recipient containing 1 L of seawater at a temperature of 25 °C, salinity of 35 g L-1 and the specific concentration of diluted EO (stock solution. Control (only seawater and blank (seawater and ethanol at the highest concentration used to dilute the oils treatments were also conducted. After reaching the stage of surgical anaesthesia, fish were submitted to biometry and a sensibility test. After that, they were transferred to clean seawater for anaesthesia recovery. The times of induction needed to reach each anaesthesia stage and anaesthesia recovery were recorded. Animals were observed for 72 hours after the procedures. All the EO provoked anaesthesia and analgesic effects in A. clarkii, but basil oil is not recommended because it caused involuntary muscle contractions and mortality in 100% and 12% of fish, respectively. The lower concentrations that promote suitable induction and recovery times are 50 µl L-1 of clove oil and 500 µl L-1 of tea tree oil. However, due to its complementary high analgesic efficiency, clove oil is recommended as the ideal anaesthetic for A. clarkii.

  11. Survey of the Fishing Cat Prionailurus viverrinus Bennett, 1833 (Carnivora: Felidae and some aspects impacting its conservation in India

    Directory of Open Access Journals (Sweden)

    S. Mukherjee

    2012-11-01

    Full Text Available The Fishing Cat Prionailurus viverrinus is a medium sized cat that is widely but patchily distributed across Asia and strongly associated with wetlands. It is among the 15 felid species that inhabit India and like other smaller cat species it is very poorly understood. Apart from a few recent surveys in specific locations, no concerted effort has been made to assess its current distribution and threats to its persistence within India. In this study we collected scats from natural habitats, through six states including five protected areas throughout India and performed informal interviews with locals to get a better overview of the current distribution and threats for Fishing Cats in India. Of the 114 scats used for molecular analysis, 37% were assigned to felids, including 19 Fishing Cats. We confirmed that Fishing Cat populations persisted in all locations where they were recorded before, including Keoladeo Ghana, from where it was reported in recent years that fishing cats are possibly extinct. Most populations face imminent threats with the worst being in the Howrah District of West Bengal where 27 dead individuals were traced during the study period of only one year. The major threats across populations include ecologically unbalanced land policies and land uses, direct persecution due to human-Fishing Cat conflicts as well as ritual hunts. To address these threats we recommend a stronger dialogue among scientists, policy makers, administrators, locals and other stake holders such as commercial fish and prawn cultivators. Further awareness campaigns for stakeholders, and surveys for monitoring fishing cat populations, studying their ecology and estimating economic losses to local people due to the Fishing Cat predation on livestock and poultry, is needed in order to design effective conservation strategies.

  12. The conservation status of the Fishing Cat Prionailurus viverrinus Bennett, 1833 (Carnivora: Felidae In Koshi Tappu Wildlife Reserve, Nepal

    Directory of Open Access Journals (Sweden)

    Iain Rothie Taylor

    2016-01-01

    Full Text Available The status of the Fishing Cat Prionailurus viverrinus in Koshi Tappu Wildlife Reserve, Nepal was assessed by camera trapping and pugmark searches from 2011 to 2014.  The reserve is a highly dynamic and unstable snow-fed braided river system with many anabranches and islands.  Evidence of Fishing Cats was found throughout most of the reserve.  They were probably more abundant on the eastern side, among the islands of the main river channel, and in the adjacent buffer zone where there was a chain of fishponds and marsh areas fed by seepage from the main river channel.  Evidence of Fishing Cats was found up to 6km north of the reserve on the Koshi River but not beyond this.  The population is probably small and may be isolated but given the endangered status of the species, is significant.  The main likely threats identified are wetland and riparian habitat deterioration caused by over exploitation and illegal grazing by villagers, overfishing of wetlands and rivers within the reserve, and direct persecution arising from perceived conflicts with fish farming and poultry husbandry.  Required conservation actions are discussed. 

  13. The Chemical Composition of the Lionfish (Pterois miles, Bennett 1828, the New Invasive Species of the Mediterranean Sea

    Directory of Open Access Journals (Sweden)

    Deniz Ayas

    2018-05-01

    Full Text Available In this study, the proximate composition of muscle tissue was investigated in lion fish (P. miles, which has a high invasion potency in the Mediterranean. At the same time, the potentials of accumulation of essential and toxic metals in brain, gill, muscle and liver tissues have been examined. The study was carried out with 4 lion fish individuals (1st individual 278 g, 28 cm, 2nd individual 55 g, 19 cm, 3rd individual 68 g, 20 cm, 4th individual 92 g, 22 cm caught from the Yeşilovacık Bay in 2016. Water, crude protein, total lipid, total mineral substance (TMS percentages were found to be 75.68-77.62%, 20.05-21.08%, 1.11-1.84%, 1.22-1.54 in P. miles, respectively. The percentage of fatty acids in lionfish ranged from 34.26% to 37.57% saturated fatty acids (SFAs, from 24.99% to 27.99 % monounsaturated fatty acids (MUFAs, and from 20.49% to 49.31% polyunsaturated fatty acids (PUFAs. Dominant fatty acids are palmitic acid and stearic acid from SFAs, palmitoleic acid, oleic acid, cetoleic acid from MUFAs, EPA and DHA from PUFAs. The accumulation levels of heavy metals in the tissues were found as Fe> Zn> As> Cu> Cr> Pb, respectively. The accumulation levels of each metal in the tissues were determined as follows: liver>gill>brain>muscle (29.19-384.43 μg g -1 dw for Fe, gill>brain>liver>muscle (16.08-56.68 μg g -1 dw for Zn, muscle>brain>gill>liver (2.69-7.88 μg g - 1 dw for As, liver> brain>gill>muscle (0.74-7.05 μg g-1 dw for Cu, brain>gill>muscle>liver (0.35-2.67 μg g -1 dw for Cr, brain>gill>muscle>liver (0.26-2.11 μg g -1 dw for Pb. As a result; while lionfish muscle tissue contains high levels of protein, unsaturated fatty acids, minerals and trace elements, it has been determined that levels of heavy metals in this consumable tissue are not at levels that could threaten human health.

  14. The Chemical Composition of the Lionfish (Pterois miles, Bennett 1828), the New Invasive Species of the Mediterranean Sea

    OpenAIRE

    Ayas, Deniz; Sen Agılkaya, Gulsemin; Kosker, Ali Rıza; Durmus, Mustafa; Ucar, Yılmaz; Bakan, Mısra

    2018-01-01

    In this study, the proximate composition of muscle tissue was investigated in lion fish (P. miles), which has a high invasion potency in the Mediterranean. At the same time, the potentials of accumulation of essential and toxic metals in brain, gill, muscle and liver tissues have been examined. The study was carried out with 4 lion fish individuals (1st individual 278 g, 28 cm, 2nd individual 55 g, 19 cm, 3rd individual 68 g, 20 cm, 4th individual 92 g, 22 cm) caught from the Yeşilovacık Bay ...

  15. Survey of the Fishing Cat Prionailurus viverrinus Bennett, 1833 (Carnivora: Felidae) and some aspects impacting its conservation in India

    OpenAIRE

    S. Mukherjee; T. Adhya; P. Thatte; U. Ramakrishnan

    2012-01-01

    The Fishing Cat Prionailurus viverrinus is a medium sized cat that is widely but patchily distributed across Asia and strongly associated with wetlands. It is among the 15 felid species that inhabit India and like other smaller cat species it is very poorly understood. Apart from a few recent surveys in specific locations, no concerted effort has been made to assess its current distribution and threats to its persistence within India. In this study we collected scats from natural habitats,...

  16. Plaadid / Heidi Purga

    Index Scriptorium Estoniae

    Purga, Heidy, 1975-

    2006-01-01

    Uutest heliplaatidest Gwen Stefani "The Sweet Escape", Errors "How Clean Is Your Acid House?", Cliff Richard "Two's Company", Jay-Z "Kingdom Come", Incubus "Light Grenades", Pogo Kreiner & Vienna Sound Orchestra "E"Magic Flute", Freddie Cruger "Soul Search"

  17. Plaadid / Aivo Vahemets

    Index Scriptorium Estoniae

    Vahemets, Aivo

    2005-01-01

    Uutest heliplaatidest Jam, Pearl "Rearviewmirror", Sibul, Riho "Must", Seal "Best 1991-2004", Carlton, Vanessa "Harmonium", Live "Awake - The Best Of", Stefani, Gwen "Love. Angel. Music. Baby", Collins, Finghin "Dear Heather"

  18. Motor Vehicle Safety (A Cup of Health with CDC)

    Centers for Disease Control (CDC) Podcasts

    In our highly mobile society, travel in vehicles is an almost daily occurrence for most Americans. Every trip places us at risk for serious injury. In this podcast, Dr. Gwen discusses ways to avoid serious injuries in motor vehicles.

  19. Feeding Your Baby in the NICU

    Science.gov (United States)

    ... at a healthy weight and avoiding alcohol and street drugs . Featured articles March of Dimes Premature Birth ... and Teresa Pitman (Prima Communications, 2000). The Womanly Art of Breastfeeding , by Gwen Gotsch and Judy Torgas ( ...

  20. Pop / Tristan Priimägi

    Index Scriptorium Estoniae

    Priimägi, Tristan, 1976-

    2005-01-01

    Heliplaatidest: Manic Street Preachers "Holy Bible - 10th Anniversary Edition", Psychoterror "Freddy, löö esimesena!", Filmimuusika "Ray", Daddy G "DJ Kicks", Gwen Stefani "Love Angel Music Baby", Tarwater "The Needle Was Travelling"

  1. Index to FAA Office of Aerospace Medicine Reports: 1961 through 2008

    Science.gov (United States)

    2009-01-01

    ng: A crtcal analyss of the concept and current practces. ADA269397 93-14 Armen a-Cope R, Marcus JH, Gowdy RV, DeWeese RL: An assessment of the...Antuñano MJ ----- 93-3, 01-15, 06-1, 06-1, 07-2 Armen a-Cope R - 93-14 Armstrong R ------ 66-17 Arnell F ------------ 97-22 Ashby FK --------- 67-8

  2. INFECCIÓN POR PROTOZOARIOS EN INDIVIDUOS DE TITÍ BEBE LECHE -S. fuscicollis-, TITÍ CABEZA BLANCA -S. oedipus-, TITÍ ARDILLA -S. sciureus-, SURICATO -S. suricatta- Y WALLABIE DE BENNETT -M. rufogriseus-: DESCRIPCIÓN DE CASOS

    Directory of Open Access Journals (Sweden)

    G. L. K. López

    2014-01-01

    Full Text Available La toxoplasmosis es una de las zoonosis parasitarias más comunes y de especial atención en medicina humana y veterinaria en todo el mundo. Toxoplasma gondii comparte mu - chos de sus parámetros biológicos con otros parásitos apicomplexa, pero es único por su extremadamente amplio rango de huéspedes y su especificidad tisular. La susceptibilidad en especies de primates del Nuevo Mundo y diprotodontos a la infección por protozoarios es alta. Bajo condiciones de cautiverio la toxoplasmosis es una de las infecciones más comunes en macrópodos australianos. En el presente trabajo se exponen los hallazgos clínicos y postmortem de 11 individuos de primates ( Saguinus oedipus, S. fuscicollis, Saimiri sciureus , carnívoros ( Suricata suricatta y diprotodontos ( Macropus rufogriseus , de la Fundación Zoológica de Cali, diagnosticados con toxoplasmosis mediante métodos paraclínicos e histopatológicos. En la mayoría de los casos el cuadro clínico se caracterizó principalmente por disnea, secreción nasal espumosa y signos neurológicos. Los hallazgos más importantes de la necropsia fueron lesiones en pulmón, hígado y encéfalo. Los casos aquí descritos corresponden a cuadros clínicos de ocurrencia natural y permiten entender el desarrollo fisiopatológico y la presentación clínica de las infecciones por protozoarios en especies de fauna silvestre, a pesar de la falta de un diagnóstico definitivo mediante técnicas específicas de inmunohistoquímica para las distintas etiologías.

  3. On setting NRC alarm thresholds for inventory differences and process unit loss estimators: Clarifying their statistical basis with hypothesis testing methods and error propagation models from Jaech, Bowen and Bennett and IAEA

    International Nuclear Information System (INIS)

    Ong, L.

    1995-01-01

    Major fuel cycle facilities in the US private sector are required to respond-at predetermined alarm levels-to various special nuclear material loss estimators in the material control and accounting (MC and A) area. This paper presents US Nuclear Regulatory Commission (NRC) policy, along with the underlying statistical rationale, for establishing and inspecting the application of thresholds to detect excessive inventory differences (ID). Accordingly, escalating responsive action must be taken to satisfy NRC's MC and A regulations for low-enriched uranium (LEU) fuel conversion/fabrication plants and LEU enrichment facilities. The establishment of appropriate ID detection thresholds depends on a site-specific goal quantity, a specified probability of detection and the standard error of the ID. Regulatory guidelines for ID significance tests and process control tests conducted by licensees with highly enriched uranium are similarly rationalized in definitive hypothesis testing including null and alternative hypotheses; statistical efforts of the first, second, third, and fourth kinds; and suitable test statistics, uncertainty estimates, prevailing assumptions, and critical values for comparisons. Conceptual approaches are described in the context of significance test considerations and measurement error models including the treatment of so called ''systematic error variance'' effects as observations of random variables in the statistical sense

  4. Installation of a Synchrotron Radiation Beamline Facility at the J. Bennett Johnston Sr. Center for Advanced Microstructures and Devices for the Science and Engineering Alliance. Phase I and II. Final Report

    International Nuclear Information System (INIS)

    Gooden, R.

    2000-01-01

    The Johnston Center presents a unique opportunity for scientists and engineers at southern institutions to initiate and carry out original research using synchrotron radiation ranging from visible light to hard x-rays. The Science and Engineering Alliance proposes to carry out a comprehensive new synchrotron radiation research initiative at CAMD in carefully phased steps of increasing risks. (1) materials research on existing CAMD beam lines and end stations; (2) design, construction and installation of end stations on existing CAMD beam lines, and research with this new instrumentation; (3) design, construction and operation of dedicated synchrotron radiation beam lines that covers the full spectral range of the CAMD storage ring and expanded research in the new facility

  5. Leptospirosis

    Science.gov (United States)

    ... It occurs when you come in contact with leptospira bacteria. ... Haake DA, Levett PN. Leptospira species (leptospirosis). In: Bennett JE, Dolin R, Blaser MJ, eds. Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases, ...

  6. Evaluating the Efficacy of ERG Targeted Therapy in vivo for Prostate Tumors

    Science.gov (United States)

    2016-06-01

    Arvin M. Gouw, Meital Gabay, Stacey J. Adam, David I. Bellovin, Phuoc T. Tran, William M. Philbricke, Adolfo Garcia-Ocanaf, Stephanie C. Casey, Yulin Li ...2016). In press. PMID: 27080744. 4. Abstracts (Year 5 only from a total of 47 since the beginning of the DoD PRTA): 1. Omar Y. Mian , Scott Robertson...Meeting. 2. Omar Y. Mian , Scott Robertson, Amol Narang, Sameer Agarwal, Hee Joon Bae, Todd McNutt, Phuoc Tran, Theodore L. DeWeese, Danny Y. Song

  7. What's so Inclusive about an Inclusion Room? Staff Perspectives on Student Participation, Diversity and Equality in an English Secondary School

    Science.gov (United States)

    Gilmore, Gwen

    2012-01-01

    This article by Gwen Gilmore, a lecturer in the School of Curriculum and Pedagogy at Massey University, draws on a research project which explored the nature, extent and characteristics of a disciplinary inclusion room (IR) in a secondary school in the south-west of England using a Cultural Historical Activity Theory framework. In five years to…

  8. The Future of American Landpower: Does Forward Presence Still Matter? The Case of the Army in the Pacific

    Science.gov (United States)

    2014-06-01

    Okinawa. Key units based there include a combat sustainment and support bat- talion, an aviation battalion consisting of UH-60 he- licopters and UC-35...chinese-firm-will-run- strategic-pakistani-port-at-gwadar.html?_r=0. Jamil Anderlini and Gwen Robinson, “China- Myanmar pipeline to open in May

  9. Restrain Yourself (A Cup of Health with CDC)

    Centers for Disease Control (CDC) Podcasts

    2015-06-04

    Any time you get behind the wheel of a motor vehicle, you’re at risk for a serious injury or death. In this podcast, Dr. Gwen Bergen discusses the importance of always wearing seat belts in motor vehicles.  Created: 6/4/2015 by MMWR.   Date Released: 6/4/2015.

  10. Health Instruction Packages: Cardiac Anatomy.

    Science.gov (United States)

    Phillips, Gwen; And Others

    Text, illustrations, and exercises are utilized in these five learning modules to instruct nurses, students, and other health care professionals in cardiac anatomy and functions and in fundamental electrocardiographic techniques. The first module, "Cardiac Anatomy and Physiology: A Review" by Gwen Phillips, teaches the learner to draw…

  11. Microcomputers in the Curriculum: Micros and the First R.

    Science.gov (United States)

    Balajthy, Ernest; Reinking, David

    1985-01-01

    Introduces the range of computer software currently available to aid in developing children's basic skills in reading, including programs for reading readiness, word recognition, vocabulary development, reading comprehension, and learning motivation. Additional information on software and computer use is provided in sidebars by Gwen Solomon and…

  12. Browse Title Index

    African Journals Online (AJOL)

    Items 1 - 50 of 63 ... Vol 4, No 2 (1999), Contested Regionalism: Southern and Central Africa in The Post-Apartheid Era, Abstract. Tandeka C Nkiwane. Vol 7, No 1 (2002), Corruption in Sub-Saharan Africa: Towards a more holistic approach, Abstract. Munyae M. Mulinge, Gwen N. Lesetedi. Vol 7, No 1 (2002), Corruption, ...

  13. FoodCORE: A New Strategy in Foodborne Outbreak Response

    Centers for Disease Control (CDC) Podcasts

    2012-11-06

    In this podcast, Gwen Biggerstaff, CDC's FoodCORE Coordinator, gives a general overview of the program, including successes.  Created: 11/6/2012 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 11/6/2012.

  14. Sometimes, It Takes a Village

    Science.gov (United States)

    Taylor, Gwen; Heflin, David

    2015-01-01

    In this article, Gwen Taylor describes the West Kentucky Community and Technical College (WKCTC) groundbreaking program, "Accelerating Opportunity" (AO), which targeted students who are deficient in math, reading, or writing. The program uses the Washington State Board for Community & Technical Colleges' (2013) Integrated Basic…

  15. Motor Vehicle Safety (A Cup of Health with CDC)

    Centers for Disease Control (CDC) Podcasts

    2014-10-16

    In our highly mobile society, travel in vehicles is an almost daily occurrence for most Americans. Every trip places us at risk for serious injury. In this podcast, Dr. Gwen discusses ways to avoid serious injuries in motor vehicles.  Created: 10/16/2014 by MMWR.   Date Released: 10/16/2014.

  16. Development of auto-antibodies towards ß2-glycoprotein I in the antiphospholipid syndrome

    NARCIS (Netherlands)

    van Os, G.M.A.

    2011-01-01

    Het plasma-eiwit ß2GPI kan binden aan oppervlakte-eiwitten van de bacterie Streptococcus pyogenes. Vier eiwitten van deze bacterie (M1-eiwit, eiwit H, SclA en SclB), kunnen binden aan ß2GPI. Alleen de binding aan eiwit H induceert een conformationele verandering in ß2GPI. Gwen van Os onderzocht de

  17. Fueling the Future: Furthering Theater Security with Burma’s Energy Industry

    Science.gov (United States)

    2014-10-30

    Worst Nightmare?” Financial Times, April 15, 2013. http://blogs.ft.com/beyond- brics /2013/04/15/myanmar-cleans-house-chinas-worst-nightmare/ 48 Ibid...Robinson, Gwen. “Myanmar Cleans House—China’s Worst Nightmare?” Financial Times, April 15, 2013. http://blogs.ft.com/beyond- brics /2013/04/15/myanmar

  18. Restrain Yourself (A Cup of Health with CDC)

    Centers for Disease Control (CDC) Podcasts

    Any time you get behind the wheel of a motor vehicle, you’re at risk for a serious injury or death. In this podcast, Dr. Gwen Bergen discusses the importance of always wearing seat belts in motor vehicles.

  19. We’re All YA Now: A Review of Graphic Novels for Children and Young Adults

    Directory of Open Access Journals (Sweden)

    Lee Skallerup Bessette

    2018-01-01

    Full Text Available 'Graphic Novels for Children and Young Adults: A Collection of Critical Essays', edited by Michelle Ann Abate and Gwen Athene Tarbox, University Press of Mississippi, 352 pages, 2017, ISBN 978-1-4968-1167-7   This article is a review of 'Graphic Novels for Children and Young Adults: A Collection of Critical Essays', edited by Michelle Ann Abate and Gwen Athene Tarbox (University Press of Mississippi, 2017. Filling a significant gap in current scholarly research in comic studies, the collection will appeal to a wide range of scholars and educators. The review argues that reading this collection is less of a chore and more of a joyful journey of discovery.

  20. The "Belles" Are Back

    Science.gov (United States)

    Hamilton, Kendra

    2009-01-01

    The "Bennett Belle." The words conjure an image that is genteel, old-fashioned--hats and gloves, brown-skinned women in flowing white dresses beaming as they take that final walk to graduation. The Bennett College for Women campus certainly reinforces the image, with its broad, tree-shaded lawns and quadrangle and its historic buildings--fully 15…

  1. Avian life history profiles for use in the Markov chain nest productivity model (MCnest)

    Science.gov (United States)

    The Markov Chain nest productivity model, or MCnest, quantitatively estimates the effects of pesticides or other toxic chemicals on annual reproductive success of avian species (Bennett and Etterson 2013, Etterson and Bennett 2013). The Basic Version of MCnest was developed as a...

  2. Fisheries management worldwide has been under the spotlight in ...

    African Journals Online (AJOL)

    denise

    lighted by several studies (Bennett et al. 1994 ... Catch per unit effort data suggest that the species were between five and 21 times more abundant in the TNP. ... (cpue) data collected during the tag and release pro- ... when handling the fish, following the methods de- ... mass using the relationships provided by Bennett and.

  3. Reply to Colom and Abad (2006)

    Science.gov (United States)

    Mackintosh, N. J.

    2007-01-01

    Mackintosh and Bennett [Mackintosh, N. J., Bennett, E. S. (2005). What do Raven's Matrices measure? An analysis in terms of sex differences. "Intelligence, 33," 663-674] reported that male students obtained higher scores than females on Raven's items that required for their solution addition/subtraction or distribution of two rules, but…

  4. Yes, Throw Money at Schools.

    Science.gov (United States)

    Baker, Keith

    1991-01-01

    The research used to bolster former U.S. Secretary of Education William Bennett's contention that spending does not affect student achievement was a 1986 article by Eric Hanushek. A reanalysis of Hanushek's data contradicts Bennett's claim. Because of the attenuation problem, the spending-achievement correlation is even stronger than the…

  5. Metagenomic Signatures of Microbial Communities in Deep-Sea Hydrothermal Sediments of Azores Vent Fields.

    Science.gov (United States)

    Cerqueira, Teresa; Barroso, Cristina; Froufe, Hugo; Egas, Conceição; Bettencourt, Raul

    2018-01-21

    The organisms inhabiting the deep-seafloor are known to play a crucial role in global biogeochemical cycles. Chemolithoautotrophic prokaryotes, which produce biomass from single carbon molecules, constitute the primary source of nutrition for the higher organisms, being critical for the sustainability of food webs and overall life in the deep-sea hydrothermal ecosystems. The present study investigates the metabolic profiles of chemolithoautotrophs inhabiting the sediments of Menez Gwen and Rainbow deep-sea vent fields, in the Mid-Atlantic Ridge. Differences in the microbial community structure might be reflecting the distinct depth, geology, and distance from vent of the studied sediments. A metagenomic sequencing approach was conducted to characterize the microbiome of the deep-sea hydrothermal sediments and the relevant metabolic pathways used by microbes. Both Menez Gwen and Rainbow metagenomes contained a significant number of genes involved in carbon fixation, revealing the largely autotrophic communities thriving in both sites. Carbon fixation at Menez Gwen site was predicted to occur mainly via the reductive tricarboxylic acid cycle, likely reflecting the dominance of sulfur-oxidizing Epsilonproteobacteria at this site, while different autotrophic pathways were identified at Rainbow site, in particular the Calvin-Benson-Bassham cycle. Chemolithotrophy appeared to be primarily driven by the oxidation of reduced sulfur compounds, whether through the SOX-dependent pathway at Menez Gwen site or through reverse sulfate reduction at Rainbow site. Other energy-yielding processes, such as methane, nitrite, or ammonia oxidation, were also detected but presumably contributing less to chemolithoautotrophy. This work furthers our knowledge of the microbial ecology of deep-sea hydrothermal sediments and represents an important repository of novel genes with potential biotechnological interest.

  6. Uudised

    Index Scriptorium Estoniae

    2007-01-01

    Eesti Filharmoonia Kammerkoori ja Tallinna Kammerorkestri kontsertidest 24. märtsil Tartu Jaani kirikus ja 25. märtsil Tallinna Metodisti kirikus, esitusel J. S. Bachi "Matteuse passioon". Ungari 15. märtsi rahvuspüha tähistamise kevadkontserdist 16. märtsil "Toompea muusikasalongis" (Teaduste Akadeemia saalis Kohtu 6 Tallinnas). Poplaulja Gwen Stefani heliplaadi "Sweet Escape" esitluskontserdist 12. okt. Helsingis Hartwall Areenal. Muusikaürituste sarjast "Atom Om" Paides (info: www.atomom.ee/)

  7. FTA-ABS test

    Science.gov (United States)

    ... Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures . 6th ed. St Louis, MO: Elsevier Saunders; 2013:533-534. Radolf JD, Tramont EC, Salazar JC. Syphilis ( Treponema pallidum ). In: Bennett JE, Dolin R, Blaser ...

  8. 76 FR 23623 - Backcountry Management Plan, Environmental Impact Statement, Grand Canyon National Park, Arizona

    Science.gov (United States)

    2011-04-27

    ...-7945, [email protected] or Rachel Bennett, Environmental Protection Specialist, P.O. Box 129, Grand Canyon, Arizona 86023, 928-638-7326, Rachel[email protected] . SUPPLEMENTARY INFORMATION: If you wish to...

  9. Guest Artist Pascal Dusapin

    CERN Multimedia

    Bennett, Sophia Elizabeth

    2016-01-01

    As part of Arts at CERN programme, the conductor and composer Pascal Dusapin visited CERN. With Mónica Bello, Sophia Bennett, Frederick Bordry, Julián Calo, Maria Dimou and Pippa Wells. CERN Data Center 22 November 2016

  10. Genetics Home Reference: vitiligo

    Science.gov (United States)

    ... SA, Fain PR, Ferrara TM, Ben S, Riccardi SL, Cole JB, Gowan K, Holland PJ, Bennett DC, Luiten ... medicine? What is newborn screening? New Pages Lyme disease Fibromyalgia White-Sutton syndrome All New & Updated Pages ...

  11. Boys Boys Boys: Gender, Race and the English Music Question

    OpenAIRE

    Laurie, Timothy

    2011-01-01

    A review of Laurie Stras (ed.), She’s So Fine: Reflections on Whiteness, Femininity, Adolescence and Class in 1960s Music and Andy Bennett and Jon Stratton (eds), Britpop and the English Music Tradition.

  12. African Zoology - Vol 39, No 1 (2004)

    African Journals Online (AJOL)

    Afrosoricida: Chrysochloridae) from KwaZulu-Natal, South Africa · EMAIL FULL TEXT EMAIL FULL TEXT DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. S Schoeman, N.C. Bennett, M van der Merwe, A.S. Schoeman, 41-46.

  13. 'I learn something new every day'.

    Science.gov (United States)

    2017-05-24

    Maggie Bennett qualified as a registered nurse in Birmingham in 1992, working initially in intensive care. Two years later she moved back to Northern Ireland, continuing in intensive care then community nursing and practice education.

  14. Storm Prediction Center Today's Storm Reports

    Science.gov (United States)

    . (GRR) 2012 100 2 SSW BENNETT CEDAR IA 4171 9099 (DVN) 2014 100 FERRIS HANCOCK IL 4047 9117 (DVN) 2017 . TIME IS APPROXIMATE. (GRR) 2014 100 FERRIS HANCOCK IL 4047 9117 (DVN) 2017 175 5 WNW BUFORD ALBANY WY

  15. Boys Boys Boys: Gender, Race and the English Music Question

    Directory of Open Access Journals (Sweden)

    Timothy Laurie

    2011-03-01

    Full Text Available A review of Laurie Stras (ed., She’s So Fine: Reflections on Whiteness, Femininity, Adolescence and Class in 1960s Music and Andy Bennett and Jon Stratton (eds, Britpop and the English Music Tradition.

  16. Acid-fast stain

    Science.gov (United States)

    ... chap 251. Murray PR. The clinician and the microbiology laboratory. In: Bennett JE, Dolin R, Blaser MJ, ... Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, ...

  17. 75 FR 13653 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2010-03-22

    ... D. Bennett, Johnny W. Bradford Sr., Levi A. Brown, Charlie F. Cook, Clifford H. Dovel, Arthur L..., Steven L. Valley, Thomas E. Voyles, Jr., Darel G. Wagner, Bernard J. Wood. These exemptions are extended...

  18. Collaboration around Research and Education (Care) in Prostate Cancer

    National Research Council Canada - National Science Library

    Price, Marva M

    2008-01-01

    ...) an historically black college or university (HBCU). Our goal is to build a collaborative relationship between Duke University and Bennett that brings together students and faculty mentors to facilitate opportunities for underrepresented minority...

  19. Molecular identification of Tribolium castaneum and T. confusum ...

    Indian Academy of Sciences (India)

    ful alternative method to identify the two sibling flour beetle species. ∗ ... represents a valuable addition or alternative to traditional phenotypic identification methods. Also, DNA ..... Buczkowski G. and Bennett G. 2009 Survey and identification.

  20. Lepromin skin test

    Science.gov (United States)

    ... if left untreated. It is caused by Mycobacterium leprae bacteria. This test is a research tool that ... Renault CA, Ernst JD. Mycobacterium leprae (leprosy). In: Bennett ... Principles and Practice of Infectious Diseases, Updated Edition . ...

  1. Lihtsalt ja lakooniliselt : Capote / Andris Feldmanis

    Index Scriptorium Estoniae

    Feldmanis, Andris, 1982-

    2006-01-01

    Ameerika kirjanik Truman Capote (1924-1984) ja mängufilm kirjanikust "Capote" : režissöör Bennett Miller : kirjanik Truman Capote' rollis Philip Seymour Hoffman : Ameerika Ühendriigid - Kanada 2005

  2. Paltinum Jubilee Lectures | Public Lectures | Events | Indian ...

    Indian Academy of Sciences (India)

    ... Boston, USA Indian Institute of Science, Bangalore, 18 December 2009 ... Max Bennett, Brain and Mind Research Institute, The University of Sydney, Sydney, Australia ... Ramaswamy R. Iyer, Centre for Policy Research, New Delhi

  3. Red River Below Denison Dam, Texas, Oklahoma, Arkansas, and Louisiana

    National Research Council Canada - National Science Library

    Copeland, Ronald

    2002-01-01

    A numerical model study was conducted to evaluate the effect that reducing bank erosion between Arthur City, TX, and Index, AR, would have on deposition rates in the J. Bennett Johnston (Red River) Waterway...

  4. Genetics Home Reference: carnitine palmitoyltransferase II deficiency

    Science.gov (United States)

    ... PubMed Isackson PJ, Bennett MJ, Lichter-Konecki U, Willis M, Nyhan WL, Sutton VR, Tein I, Vladutiu ... 27 [updated 2017 Mar 16]. In: Pagon RA, Adam MP, Ardinger HH, Wallace SE, Amemiya A, Bean ...

  5. Friends Indeed? Coalition Burden Sharing and the War In Iraq. Volume 1

    National Research Council Canada - National Science Library

    Baltrusaitis, Daniel F

    2008-01-01

    .... This research examines the conditions that influence state burden sharing behavior for ad hoc security coalitions and examines the decision making model developed by Andrew Bennett, Joseph Lepgold, and Danny...

  6. OM85. Basic Properties of Optical Materials Summaries of Papers.

    Science.gov (United States)

    1985-05-01

    1984. [2] D. Marcuse : IEEE J. QE-14, 736 (1978). 163 ... . . . .. . . .. . . CALORIMETRIC MEASUREMENT OF OPTICAL ABSORPTION IN SAPPHIRE AT VISIBLE...ARSENIDE Herbert S. Bennett Semiconductor Devices and Circuits Division National Bureau of Standards Gaithersburg, MD 20899 Introduction Lasers, opto

  7. Reviews

    OpenAIRE

    Durling, David; Barker, Philip; Jacobs, Gabriel; Milton, James; Ward, Robert

    1996-01-01

    Researching into Teaching Methods in Colleges and Universities by Clinton Bennett, Lorraine Foreman‐Peck and Chris Higgins, London: Kogan Page, 1996. ISBN: 0–7494–1768–4, 136 (+ vii) pages, paperback. £14.99.

  8. New Bottles for New Wine: Sociology and Technology of Today’s Television Industry

    Directory of Open Access Journals (Sweden)

    Vincent O'Donnell

    2012-03-01

    Full Text Available A review of Vicki Mayer, Below the Line: Producers and production studies in the new television economy (Duke, 2011 and James Bennett and Niki Strange (eds, Television as Digital Media (Duke, 2011.

  9. Partnership theory and practice.

    OpenAIRE

    Walsh, Jim

    2004-01-01

    The importance of the local arena in planning for socio-economic development has gained widespread attention over recent years both in Ireland and further afield (Stohr, 1990; Bennett and Krebs, 1991; Bennett and McCoshan, 1993; OECD, 1990; Walsh, 1996; Maillat, 1997). This section commences with a brief review of the concept of development followed by a consideration of the rationale for local development initiatives and an identification of the key components of strategies for effecti...

  10. 異文化発達質問紙(IDI)を用いた多様性トレーニング効果の検証

    OpenAIRE

    坂田, 浩; 前田, 有香

    2005-01-01

    The present study examines the general effect of a four-day diversity training program for 27 Japanese university students using the Intercultural Development Inventory (IDI) (Hammer, Bennett & Wiseman, 2003) and presents some tips to develop more effective training programs for Japanese university students. Bennett, M.J. (1986 ; 1993) presented the Developmental Model of Intercultural Sensitivity (DMIS), and IDI was developed as a tool to measure a person's intercultural sensitivity level on...

  11. Impact of mounting methods in computerized axiography on assessment of condylar inclination.

    Science.gov (United States)

    Schierz, Oliver; Wagner, Philipp; Rauch, Angelika; Reissmann, Daniel R

    2017-08-30

    Valid and reliable recording is a key requirement for accurately simulating individual jaw movements. Horizontal condylar inclination (HCI) and Bennett's angle were measured using a digital jaw tracker (Cadiax® Compact 2) in 27 young adults. Three mounting methods (paraocclusal tray adapter, periocclusal tray adapter, and tray adapter with mandibular clamp) were tested. The mean values of the HCI differed by up to 10° between the mounting methods; however, the values for Bennett's angle did not differ substantially. While the intersession reliability of the Bennett's angle assessment did not depend on the mounting method, the reliability of the HCI assessment was only fair to good for the paraocclusal mounting method but poor for both periocclusal mounting methods. For attaching the tracing bow of jaw trackers to the mandible, a paraocclusal tray adapter should be applied, to achieve the most reliable results.

  12. The doomsday lobby hype and panic from sputniks, martians, and marauding meteors

    CERN Document Server

    Bennett, James T

    2010-01-01

    From the race-to-space in the 1950s to the current furor over global warming, James Bennett traces the subtle and not-so-subtle ways in which government has co-opted scientific research and reinforced a culture in which challengers to proscribed wisdom are frozen out. Ripped from the headlines, Bennett offers a compelling, entertaining, and thought-provoking perspective on political influence in scientific research and its implications for a democratic society. Praise for The Doomsday Lobby "During the Nineteenth Century, almost entirely on private funding, American science grew from practically nothing to world class. Now, however, over fifty percent of American science is funded by the federal government. Dr. Bennett traces the path, "crisis" after "crisis," by which American science became practically an arm of the federal government. His tale is a cautionary one, warning against future "crisis mongers" who would extend the government's already majority control of American science even further. His warning...

  13. Experimental methods of effective delayed neutron fraction

    International Nuclear Information System (INIS)

    Yamaye, Yoshihiro

    1995-01-01

    The defining principle and examples of β eff measurement method: the substitutional method, Cf neutron source method, Bennett method, the coupling coefficient method and Nelson method were introduced and surveyed. Measurement errors and C/E value of the substitutional, Cf ray source and Bennett method were of the order of 3%, 5% and 3 - 6% and 0.903 - 0.965, 1.85 and 1.019 - 1.165, respectably. Evaluation of the absolute value is so hard that β eff measurement belongs to the difficult experiment. The dependence on nuclear calculation in decreasing order is the substitutional, Cf ray source, Bennett, the coupling coefficient and Nelson number method. If good substitute materials were selected, the substitutional method has possibility to determine β eff by small correction value or independent on calculation. (S.Y.)

  14. Performance of various quantum-key-distribution systems using 1.55-μm up-conversion single-photon detectors

    International Nuclear Information System (INIS)

    Diamanti, Eleni; Takesue, Hiroki; Honjo, Toshimori; Inoue, Kyo; Yamamoto, Yoshihisa

    2005-01-01

    We compare the performance of various quantum-key-distribution (QKD) systems using a single-photon detector, which combines frequency up-conversion in a periodically poled lithium niobate waveguide and a silicon avalanche photodiode (APD). The comparison is based on the secure communication rate as a function of distance for three QKD protocols: the Bennett-Brassard 1984, the Bennett-Brassard-Mermin 1992, and the coherent differential-phase-shift keying protocols. We show that the up-conversion detector allows for higher communication rates and longer communication distances than the commonly used InGaAs/InP APD for all three QKD protocols

  15. A Meta-Analysis of Distributed Leadership from 2002 to 2013: Theory Development, Empirical Evidence and Future Research Focus

    Science.gov (United States)

    Tian, Meng; Risku, Mika; Collin, Kaija

    2016-01-01

    This article provides a meta-analysis of research conducted on distributed leadership from 2002 to 2013. It continues the review of distributed leadership commissioned by the English National College for School Leadership (NCSL) ("Distributed Leadership: A Desk Study," Bennett et al., 2003), which identified two gaps in the research…

  16. 77 FR 70466 - Meeting of the Judicial Conference Committee on Rules of Practice and Procedure

    Science.gov (United States)

    2012-11-26

    ... Procedure. ACTION: Notice of open meeting. SUMMARY: The Committee on Rules of Practice and Procedure will hold a two-day meeting. The meeting will be open to public observation but not participation. DATE: January 3-4, 2013. TIME: 8:30 a.m. to 5:00 p.m. ADDRESSES: The Charles Hotel, Harvard Square, One Bennett...

  17. 75 FR 32816 - Meeting of the Judicial Conference Advisory Committee on Rules of Criminal Procedure

    Science.gov (United States)

    2010-06-09

    ... Criminal Procedure will hold a two-day meeting. The meeting will be open to public observation but not participation. DATE: September 27-28, 2010. TIME: 8:30 a.m. to 5 p.m. ADDRESSES: The Charles Hotel, 1 Bennett...

  18. Influence of spatial environment on maze learning in an African mole-rat

    CSIR Research Space (South Africa)

    Du Toit, L

    2012-05-01

    Full Text Available -1 Anim Cogn DOI 10.1007/s10071-012-0503-0 Influence of spatial environment on maze learning in an African mole-rat Lydia du Toit ? Nigel C. Bennett ? Alecia Nickless ? Martin J. Whiting L. du Toit , A. Nickless , M. J. Whiting (email) School...

  19. Tractable Quantification of Entanglement for Multipartite Pure States

    International Nuclear Information System (INIS)

    Nian-Quan, Jiang; Yu-Jian, Wang; Yi-Zhuang, Zheng; Gen-Chang, Cai

    2008-01-01

    We present kth-order entanglement measure and global kth-order entanglement measure for multipartite pure states, and extend Bennett's measure of partial entropy for bipartite pure states to a multipartite case. These measures are computable and can effectively classify and quantify the entanglement of multipartite pure states. (general)

  20. Forum: Learning Outcomes in Communication. Civic Engagement and a Communication Research Agenda

    Science.gov (United States)

    Ball, Timothy C.; Procopio, Claire H.; Goering, Beth; Dong, Qingwen; Bodary, David L.

    2016-01-01

    Civic engagement has long been a pedagogical and societal goal for communication scholars (Arnett & Arneson, 1999; Bennett, Wells, & Freelon, 2011). Kidd and Parry-Giles (2013) point out that belief in the "inherent civic value of speech to meaningful citizenship" is the "pedagogical core of the discipline" (n.p.).…

  1. Three if by Internet: Exploring the Utility of a Hacker Militia

    Science.gov (United States)

    2017-03-01

    national critical infrastructure, illustrated by state-sponsored encroachments of sovereignty in the cyber realm, underscore a growing list of “cross...on national critical infrastructure, illustrated by state- sponsored encroachments of sovereignty in the cyber realm, underscore a growing list of...27 Alexander L. George and Andrew Bennett, Case Studies and Theory Development in the Social Sciences ( Cambridge

  2. Magnetohydrodynamic studies of the strong Focus device

    International Nuclear Information System (INIS)

    Vezin, Robert

    1971-01-01

    The POTTER magnetohydrodynamic code is used. It consists of a two-dimensional fluid model with two temperatures Te, Ti and transverse transport coefficients for a fully ionized plasma. Applied to the FOCUS geometry used at Limeil, it gives temperatures consistent with the BENNETT law but much lower than those evaluated experimentally by the X-ray absorbing foils technique. (author) [fr

  3. Author Details

    African Journals Online (AJOL)

    Bennett, M. Vol 5, No 3 (2005) - Articles Crossing the digital divide: the contribution of information technology to the professional performance of malaria researchers in Africa Abstract PDF. ISSN: 1680-6905. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  4. Streamside zone width and amphibian and reptile abundance

    Science.gov (United States)

    D. Craig Rudolph; James G. Dickson

    1990-01-01

    Many natural pine-hardwood stands in the southeastern United States are being converted to pine plantations with short rotations. This forest conversion alters vertebrate communities, particularly amphibians and reptiles (Bennett et al., 1980; Rakowitz, 1983). One practice in stand conversion to accommodate vertebrate species is the retention of strips of unharvested,...

  5. 75 FR 3656 - Airworthiness Directives; The Boeing Company Model 767-200, -300, and -300F Series Airplanes

    Science.gov (United States)

    2010-01-22

    ... receipt. FOR FURTHER INFORMATION CONTACT: Robert Hettman, Aerospace Engineer, Cabin Safety and... audio select panel. An electrical current went through the support structure to a flightcrew mask... specification part number Sierra engineering Spencer fluid Puritan bennett Hydraflow 60B50059-70 835-01-70 9513...

  6. RPE65 gene: multiplex PCR and mutation screening in patients from ...

    Indian Academy of Sciences (India)

    Unknown

    The RPE65 protein is believed to play an important role in the metabolism of vitamin A in the ... PCR and mutation screening in patients from India with retinal degenerative diseases. ..... Bennett J. 2001 Gene therapy restores vision in a canine.

  7. Uudiseid maailmast / Nele-Eva Steinfeld

    Index Scriptorium Estoniae

    Steinfeld, Nele-Eva

    2013-01-01

    Lühisõnumeid muusikamaailmast: Statistikat 2012. aasta kohta. Wagner Dresdenis. Sir Simon Rattle ei pikenda lepingut Berliinis. Richard Rodney Bennett. Probleemid La Scalas ja Metropolitan Operas. Läti Riiklik Sümfooniaorkester peadirigendita. Bernard Haitink on Madalmaade Raadio orkestri partoon. Viktor Meržanov. Lisa Della Casa

  8. Design Guidelines for Collaboration and Participation with Examples from the LN4LD (Learning Network for Learning Design)

    NARCIS (Netherlands)

    Burgos, Daniel; Hummel, Hans; Tattersall, Colin; Brouns, Francis; Koper, Rob

    2007-01-01

    Burgos, D., Hummel, H. G. K., Tattersall, C., Brouns, F., & Koper, R. (2009). Design Guidelines for Collaboration and Participation with Examples from the LN4LD (Learning Network for Learning Design). In L. Lockyer, S. Bennett, S. Agostinho & B. Harper (Eds.), Handbook of Research on Learning Design

  9. Book Review: Evolutionary Ecology of Birds: Life Histories, Mating ...

    African Journals Online (AJOL)

    Abstract. Book Title: Evolutionary Ecology of Birds: Life Histories, Mating Systems and Extinction. Book Authors: P.M. Bennett & I.P.F. Owens. Oxford University. Press. 2002. Pp. 272. Price £24.95 (paperback). ISBN 0 19 851089 6.

  10. Higher Education Tarred with a Harvard Brush.

    Science.gov (United States)

    Trachtenberg, Stephen Joel

    1987-01-01

    The Secretary of Education Bennett and Michael Kinsley in an article in the Wall Street Journal claim that colleges are wasteful and ineffective, but the picture they paint of American higher education is essentially mythical. Higher education is seen as a scapegoat for politicians in an election year. (MLW)

  11. Pride and Prejudice

    NARCIS (Netherlands)

    Austen, Jane

    2005-01-01

    A tour de force of wit and sparkling dialogue, Pride and Prejudice shows how the headstrong Elizabeth Bennett and the aristocratic Mr Darcy must have their pride humbled and their prejudices dissolved before they can acknowledge their love for each other.

  12. "A Really Nice Spot": Evaluating Place, Space, and Technology in Academic Libraries

    Science.gov (United States)

    Khoo, Michael J.; Rozaklis, Lily; Hall, Catherine; Kusunoki, Diana

    2016-01-01

    This article describes a qualitative mixed-method study of students' perceptions of place and space in an academic library. The approach is informed by Scott Bennett's model of library design, which posits a shift from a "book-centered" to a technology supported "learning centered" paradigm of library space. Two surveys…

  13. Living Language through Creative Reading; Proceedings of the Annual Reading Conference (4th, Indiana State University, Terre Haute, June 13-14, 1974).

    Science.gov (United States)

    Waterman, David C., Ed.; Gibbs, Vanita M., Ed.

    These proceedings are published primarily for the purpose of helping teachers to improve their reading instruction. The contents include "Official Program"; "I Wish Children Literature" by Lee Bennett Hopkins, which discusses the importance of providing children with good reading materials; "Black English and Reading" by Ronald W. Bruton, which…

  14. Interpolation of the Radial Velocity Data from Coastal HF Radars

    Science.gov (United States)

    2013-01-01

    effectiveness of such DA approach. In a similar manner, a 3d covariance matrix for the Princeton Ocean model model has been constructed by Breivik ...1839-1856. [8] Bennett, A.F., 2002: Inverse modeling of the ocean and atmosphere. Cambridge Uni- versity Press, 256 pp [9] Breivik , O., and O

  15. Dealing with Crises: One Principal's Experience.

    Science.gov (United States)

    Foley, Charles F.

    1986-01-01

    The principal of Concord High School (New Hampshire) recounts the 1985-86 school year's four crises--the visits of teacher-astronaut Christa McAuliffe and Secretary of Education William Bennett, the shooting of a former student, and the Challenger space shuttle explosion. The greatest challenge was resuming the normal schedule and fielding media…

  16. Supersession on Rhetorical Citizenship

    DEFF Research Database (Denmark)

    Villadsen, Lisa Storm

    , and Culture, Communication Arts, University of Wisconsin-Madison, USA Jeffrey A. Bennett, Associate Professor, Communication Studies, College of Liberal Arts & Sciences, University of Iowa, USA Simone Chambers, Professor, Political Science, Director of Centre for Ethics, University of Toronto, Canada Robert...

  17. An entanglement concentration protocol for cluster states using ...

    Indian Academy of Sciences (India)

    It may be noted that these protocols are not the only approaches of gener- ating maximally entangled states. There are several other protocols such as entanglement purification [8–12], quantum entanglement distillation [13,14], etc., to this effect. The history of ECP starts in the work of Bennett et al [8] in 1996 in which he ...

  18. Peak Performance Through Nutrition and Exercise

    Science.gov (United States)

    1999-09-01

    Keith Avery, J02 Cerise Fenton , Dr. Jeffrey Bennett, and Dawn Schultz. Also, many thanks to HM1 (FMF) Otis B. Brown, the USUHS Brigade, and Morale...ability to perform physical activities. Regular physical activity leads to improved physical fitness and many other physiologic, cosmetic , and

  19. 78 FR 62012 - Transcontinental Gas Pipeline Company; Notice of Availability of the Draft Environmental Impact...

    Science.gov (United States)

    2013-10-11

    ... facility would be constructed within a historic airplane hangar complex on Floyd Bennett Field, which is... and groups; newspapers and libraries in the project area; and parties to this proceeding. Paper copy... particular project is considered a ``Comment on a Filing.'' (3) You may file a paper copy of your comments at...

  20. Berlinale terad / Kadri Kõusaar

    Index Scriptorium Estoniae

    Kõusaar, Kadri

    2006-01-01

    56. Berliini festivali filme - Jasmila Zhbanici "Grbavica", Michael Winterbottomi, Mat Whitecrossi "Teekond Guantanamosse", tailase Pen-ek Ratanaruangi "Nähtamatud lained", John Hillcoati "Ettepanek" (stsenarist ja muusika autor Nick Cave), Bennett Milleri "Capote" (nimiosas P.S. Hoffman), Yang Yong-hi dokfilm "Kallis Pyongyang", Tomer Heymanni dokfilm "Pabernukud"

  1. Integrating Cognition and Emotion: Yirat Shamayim and the Taxonomies

    Science.gov (United States)

    Scheindlin, Laurence

    2008-01-01

    Following Bennett Solomon's suggestion of the "integrating individual"--one who possesses the skill and interest to incorporate new knowledge into a larger and unified life-picture--this article explores how recognizing the coupling of the affective and cognitive can influence Jewish education. Emotions help construct our daily perceptions and our…

  2. What's so Bad about Being "Professorial"?

    Science.gov (United States)

    Vaidhyanathan, Siva

    2008-01-01

    CNN commentator Bill Bennett's invocation of "professorial" was the latest among a string of comments about Barack Obama, who used to teach constitutional law at the University of Chicago. On September 13, the "New York Times" columnist Thomas L. Friedman wrote, "Obama may be a bit professorial, but at least he is trying to unite the country to…

  3. Advances in crosshole seismic measurements to characterise and monitor the internal condition of embankment dams

    Energy Technology Data Exchange (ETDEWEB)

    Vazinkhoo, S.; Anderlini, C.; Gaffran, P. [BC Hydro, Burnaby, BC (Canada); Jefferies, M. [Golder Associates Ltd., Vancouver, BC (Canada)

    2008-07-01

    The WAC Bennett Dam Sinkhole investigation project was launched in June 1996 in British Columbia following the discovery of a sinkhole. This paper provided information on crosshole seismic velocity testing that was conducted at the WAC Bennett Dam, along with background information on the methods developed to interpret the results of crosshole seismic testing that has been conducted on an annual basis at the dam since 1996. Additional laboratory and field testing conducted at the Mica and Revelstoke dams were also reviewed with particular focus on how the results have improved the interpretation and assessment methods. This paper described the laboratory testing program which consisted of bender element tests, in which shear wave velocities were measured under controlled void ratio, stress and fines content conditions, and critical state triaxial tests to determine the Critical State Lines (CSLs). It was concluded that crosshole seismic shear wave velocity measurements have proven to be a very useful tool for monitoring void ratio and stress conditions at the WAC Bennett Dam and continue to be employed at the dam on an annual basis. Variations in shear wave velocity can be correlated to local construction features at the WAC Bennett and other BC Hydro dams. 16 refs., 4 tabs., 7 figs.

  4. Kirjanik Truman Capote ja tema teosed valgel linal / Aare Ermel

    Index Scriptorium Estoniae

    Ermel, Aare, 1957-2013

    2006-01-01

    Ameerika kirjanik Truman Capote (1924-1984) oli stsenarist viiele filmile. Tema kaks romaani on aluseks filmidele "Külmavereliselt" (RIchard Brooks, 1967) ja "Hommikueine Tiffany juures" (Blake Edwards, 1961). Edukas on mängufilm kirjanikust "Capote" : režissöör Bennett Miller : kirjanik Truman Capote' rollis Philip Seymour Hoffman : Ameerika Ühendriigid - Kanada 2005

  5. Genetic Relationships among Invasive Hydrilla (Hydrilla verticillata L.f. Royle) Biotypes in the US and Their Implications for Management

    Science.gov (United States)

    2014-02-01

    throughout this large distribution, although they may be due to environmentally induced plasticity , rather than being indicative of taxonomic...Surveys of hydrilla herbivores have been undertaken in India, Pakistan, Malaysia , Korea, Japan, Thailand, Vietnam, Africa, and Australia (Bennett and... Malaysia (Steward 1993). US monoecious hydrilla plants likely originated in Korea (Madeira et al. 2007, Benoit 2011); therefore, natural enemy

  6. A Conversation with Jessica Hellmann: Reducing the Impact of Climate Change

    Directory of Open Access Journals (Sweden)

    Riane Eisler

    2017-10-01

    Full Text Available IJPS Editor-in-Chief Riane Eisler talks with Jessica Hellmann, Director of the University of Minnesota Institute on the Environment, Russell M. and Elizabeth M. Bennett Chair in Excellence in the Department of Ecology, Evolution, and Behavior, and a pioneer in the field of reducing the impact of climate change.

  7. We shall Overcome? Bob Dylan, Complicity, and the March on Washington 1963

    NARCIS (Netherlands)

    Mehring, F.

    2016-01-01

    Contemporary reports had been surprisingly quiet about the sounds and soundtrack of the March on Washington for Jobs and Freedom on 27 August 1963 where Martin Luther King, Jr. held his famous “I have a dream” speech. When journalist Lerone Bennett Jr. from the influential magazine for the

  8. Development of Dietary Polyphenol Preparations for Treating Veterans with Gulf War Illness

    Science.gov (United States)

    2016-10-01

    research study because you are a Gulf War Veteran who was deployed to the Persian Gulf between August 1990 and August 1991 and you fit the definition of...Friday, April 01, 2016 3:16 PM To: Pasinetti, Giulio Cc: Grants; King , Michael; Bennett, Jodi H CIV USARMY MEDCOM USAMRMC (US); Dubner, Lauren; Winter

  9. 12038_2016_9592_Supplementary 1..5

    Indian Academy of Sciences (India)

    were stored at 4°C for another day, during which time we measured optical density for all the 48 plates at 590 nm (Cooper and. Lenski 2000) using a microplate .... Bennett AF and Lenski RE 1997 Phenotypic and evolutionary adaptation of a model bacterial system to stressful thermal environments; in. Environmental Stress ...

  10. Greater Expectations

    Science.gov (United States)

    McCloskey, Patrick J.

    2006-01-01

    Julius Bennett was once a disinterested student destined to become a dropout. Then he enrolled in Amistad Academy, an academically focused charter middle school intent on narrowing the achievement gap between urban and suburban kids located in New Haven, Connecticut. Now Julius is making plans for college. In this article the author details the…

  11. Yes, You Can!: A Critical Questions Approach for Developing and Incorporating Intercultural Sensitivity Efforts into ANY Classroom

    Science.gov (United States)

    Osborne, Randall

    2016-01-01

    The educational literature has blossomed with information on becoming interculturally sensitive (e.g., Bennett, 2004, 2009), discussions on theory and practice for education aimed at enhancing intercultural sensitivity in students (e.g., Bleszynska, 2008), or how to identify and assess intercultural sensitivity as a learning outcome (e.g.,…

  12. Exploring Intercultural Sensitivity in Early Adolescence: A Mixed Methods Study

    Science.gov (United States)

    Mellizo, Jennifer M.

    2017-01-01

    The purpose of this mixed methods study was to explore levels of intercultural sensitivity in a sample of fourth to eighth grade students in the United States (n = 162). "Intercultural sensitivity" was conceptualised through Bennett's Developmental Model of Sensitivity, and assessed through the Adapted Intercultural Sensitivity Index.…

  13. Exposure of precision-cut rat liver slices to ethanol accelerates fibrogenesis

    NARCIS (Netherlands)

    Schaffert, Courtney S.; Duryee, Michael J.; Bennett, Robert G.; DeVeney, Amy L.; Tuma, Dean J.; Olinga, Peter; Easterling, Karen C.; Thiele, Geoffrey M.; Klassen, Lynell W.

    Schaffert CS, Duryee MJ, Bennett RG, DeVeney AL, Tuma DJ, Olinga P, Easterling KC, Thiele GM, Klassen LW. Exposure of precision-cut rat liver slices to ethanol accelerates fibrogenesis. Am J Physiol Gastrointest Liver Physiol 299: G661-G668, 2010. First published July 1, 2010; doi:

  14. Pre-Service Teacher Intercultural Sensitivity Assessment as a Basis for Addressing Multiculturalism

    Science.gov (United States)

    Spinthourakis, J. A.; Karatzia-Stavlioti, E.; Roussakis, Y.

    2009-01-01

    The aim of the present study was to assess the cultural sensitivity of a sample of Greek University Elementary education students using an adjusted version of Chen and Starosta's Intercultural Sensitivity Scale, which is based on Bennett's Inventory on Intercultural Sensitivity. Results show that Greek student intercultural sensitivity is already…

  15. Relationship of Gender and Academic Achievement to Finnish Students' Intercultural Sensitivity

    Science.gov (United States)

    Holm, Kristiina; Nokelainen, Petri; Tirri, Kirsi

    2009-01-01

    This study examined the intercultural sensitivity of Finnish 12-16-year-old secondary school students (N=549) with a 23-item Intercultural Sensitivity Scale Questionnaire (ICSSQ). The ICSSQ is based on Bennett's (1993) Developmental Model of Intercultural Sensitivity (DMIS), which is a conceptual tool to situate certain reactions towards cultural…

  16. Haematological Effects of Leaf Extract of Moringa oleifera Lam in ...

    African Journals Online (AJOL)

    Dr Olaleye

    worldwide, congruent with the geographies where its nutritional benefits are most needed. Moringa oleifera is rich in simple sugar, rhamnose, glucosinolates and isothiocyanates. (Bennett et al., 2003; Fahey 2001). The leaves of M. oleifera contain thiamine, riboflavin and niacin. Moringa oleifera leaves are excellent source ...

  17. Principles of Mission Command Applied to Civil Military Relationships

    Science.gov (United States)

    2017-05-25

    to prevent tension and promote cohesive teams. While historians trace civil-military theory to Sun Tzu and Carl von Clausewitz, the beginning of...Conclusion – A Mission Command Approach .............................................................................. 34 Bibliography ...Civil-Military Relations,” Monograph, (School of Advanced Military Studies, Fort Leavenworth, KS, 2010): 3. 64 Bennett, 3. 36 Bibliography

  18. Kaitstud magistritööd, 1. juuni 2012

    Index Scriptorium Estoniae

    2013-01-01

    Oma töid kaitsesid Claudio Julio Rodriguez Higuera, Davi William Ferreira Gomes, Karlina Vaivade, Mohamed Gamal Abdelmeged Elmaayergy, Sigita Tamošauskaite, Eduardo Chávez Herrera, Tyler James Bennett, Felipe Cuervo Restrepo, Julia Popova, Anastasiia Sidielnik, Thomas Mark Boyle, Mirjam Männik, Sandra Preiman, Tamara Stojanovic

  19. The overlapping distribution method to compute chemical potentials of chain molecules

    NARCIS (Netherlands)

    Mooij, G.C.A.M.; Frenkel, D.

    1994-01-01

    The chemical potential of continuously deformable chain molecules can be estimated by measuring the average Rosenbluth weight associated with the virtual insertion of a molecule. We show how to generalize the overlapping-distribution method of Bennett to histograms of Rosenbluth weights. In this way

  20. Identification of a GH110 subfamily of alpha 1,3-galactosidases: novel enzymes for removal of the alpha 3Gal xenotransplantation antigen

    DEFF Research Database (Denmark)

    Liu, Qiyong P; Yuan, Huaiping; Bennett, Eric P

    2008-01-01

    and neutral pH optimum (Liu, Q. P., Sulzenbacher, G., Yuan, H., Bennett, E. P., Pietz, G., Saunders, K., Spence, J., Nudelman, E., Levery, S. B., White, T., Neveu, J. M., Lane, W. S., Bourne, Y., Olsson, M. L., Henrissat, B., and Clausen, H. (2007) Nat. Biotechnol. 25, 454-464). One member of this family from...

  1. Viewing Indians: Native Encounters with Power, Tourism, and the Camera in the Wisconsin Dells, 1866-1907

    Science.gov (United States)

    Hoelscher, Steven

    2003-01-01

    In the winter of 1883, the photographer H. H. Bennett decided to spice up his descriptive catalogue of stereo views with something new. Several years earlier, a simple listing of his photographs--mostly landscape views of the area surrounding the Wisconsin River Dells--brought the small-town studio photographer considerable renown and enhanced…

  2. Evaluation and Repair of Concrete Slabs

    Science.gov (United States)

    1992-01-01

    No. S. Oct. 1968. pp. 36-51. 17. Verbeck. George J.. "Mechanisms of Corrosion of Steel in 41. Bennett. E. W., and Dave , N. J.. "Test Performances and...Orville R. Werner Paul H. Karr ’ Robert E3. Philkeo Zenon A. Zielinski Lawrence 1. Knab Mtlos Poltvka Corresponding members Alfred G. Btshara J. P. Lloyd

  3. Materialitetens trosbekendelse

    DEFF Research Database (Denmark)

    Thomsen, Torsten Bøgh

    2016-01-01

    Populærvidenskabelig introduktion til og eksemplificering af politologen Jane Bennetts teorier om "vital materialisme" og "vibrerende materialitet", sådan som hun formulerede dem i udgivelsen "Vibrant Matter - A Political Ecology of Things" fra 2010, som allerede har opnået klassikerstatus indenf...

  4. Eliglustat tartrate for the treatment of adults with type 1 Gaucher disease [Corrigendum

    Directory of Open Access Journals (Sweden)

    Bennett LL

    2015-09-01

    Full Text Available Bennett LL, Turcotte K. Drug Des Devel Ther. 2015;9:4639–4647.On page 4642, left column, 2nd word, the drug name Cardelga® should have been Cerdelga®.On page 4643, Table 2, the drug name Cardelga® should have been Cerdelga®.Read the original article

  5. Impacts of historical mining in the Coeur d'Alene River Basin

    Science.gov (United States)

    Balistrieri, Laurie S.; Box, Stephen E.; Bookstrom, Arthur A.; Hooper, Robert L.; Mahoney, J. Brian

    2010-01-01

    Mining began in the late 1880s in the Coeur d'Alene mining district in northern Idaho (fig. 1). Although only two mines, the Galena and Lucky Friday, currently are operating, more than 90 historical mines exist in this region (Bennett and others, 1989).

  6. Short Communications Caecilians exhibit cutaneous respiration and ...

    African Journals Online (AJOL)

    1987-10-22

    Oct 22, 1987 ... animals to live on dry land (Bennett & Wake 1974). They also usually possess ... 100 ml gas syringe that was then kept in a temperature- controlled cabinet for 60 min. ... and body to ensure a tight seal. Once a value for this.

  7. Expeditions and other fieldwork

    NARCIS (Netherlands)

    NN,

    2001-01-01

    Java — Messrs. H. Wiriadinata (BO) and J. Bennett (OXF) collected 8 species of Strobilanthus between 16 and 30 September 1998, in West Java. Mr. H. Wiriadinata (BO), Dr. W. Meijer (KY), and IPB students made 10 samples of mosses on 28 March 1998, on G. Salak, Curug Nangka.

  8. This Little Planet.

    Science.gov (United States)

    Hamilton, Michael, Ed.

    In six essays considering overpopulation, pollution, and food supply from the framework of the Judeo-Christian tradition and of world ecology, three theologians (Pollard, Shinn, and Bonifazi), an ecologist (Sears), a geographer (Glacken), and a medical scientist and administrator (Bennett), conclude that the control and preservation of the natural…

  9. Incisors as digging tools in molerats (Bathyergidae)

    African Journals Online (AJOL)

    1998-03-26

    Xa and Vb) at which the upper and lower incisors (lines a- ..... JARVIS. JU.M., BENNETT. N.C. 1991. Introducing the Alriean mole-rats (family Bathyergidae). In: The biology of the naked mole-rat: 66 - 96. (Eds) Sherman. R. W ..

  10. Gender | Page 188 | IDRC - International Development Research ...

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

    La FOOD India, organisation non gouvernementale basée à Chennai, dans le Sud de l'Inde, mène des activités, ... Language French ... "Campus cultures are places in which the stakes are high," says Dr Jane Bennett, gender researcher and ...

  11. Through Ecofeminist Eyes: Le Guin's "The Ones Who Walk Away from Omelas"

    Science.gov (United States)

    Bennett, Barbara

    2005-01-01

    Barbara Bennett explains the tenets behind ecofeminism and why it is a useful and appropriate method of literary analysis for today's world. By applying the theory to Le Guin's story, she helps her students relate the issues of ecofeminism to their American lifestyle.

  12. An X-Ray Source for Lithography Based on a Quasi-Optical Maser Undulator

    Science.gov (United States)

    1989-05-09

    18, 1986, Edited by J. B. Godel, W. Marcuse and G. P. Williams, Brookhaven National Laboratory Report 52046. 2. In preparing this and the following...90278 Dr. Herbert S. Bennett Dr. John Booske National Bureau of Standards Energy Research Bldg. Bldg. 225, Rm. A352 University of Maryland Washington

  13. Human papillomavirus and tar hypothesis for squamous cell cervical ...

    Indian Academy of Sciences (India)

    2010-08-09

    Aug 9, 2010 ... Keywords. Cervical cancer; co-factors; human papillomavirus; tar-based vaginal douche; tobacco smoke; wood smoke. Author Affiliations. Christina Bennett1 Allen E Kuhn2 Harry W Haverkos3. Indiana University School of Medicine, Indianapolis, Indiana 46202-5149, USA; Suite 300, Hamilton Mason Road ...

  14. Consistent and Persistent, Distinctive and Evolving: Musical Experience as an Intellectual Human Condition

    Science.gov (United States)

    Younker, Betty Anne

    2015-01-01

    Amongst the multiple key philosophers who have addressed critical issues pertaining to music education since the mid-1900s, Bennett Reimer was one voice that began a systematic examination of the nature and value of music and music education as a foundation for a philosophy of music education. With the musical experience at the center of his…

  15. 76 FR 27175 - Quarterly Publication of Individuals Who Have Chosen To Expatriate, as Required by Section 6039G

    Science.gov (United States)

    2011-05-10

    ... name First name Middle name/initials ABA MAUREEN ABASI HAJIYA ABRAHAMS STEPHANIE JANE ABRIC ISABELLE H... BENNETT EDWARDS STEPHEN EGLI CAROLINE ANNE ELKOREK MAYA EMERSON BARBARA MARIE EMERY JEAN CHRISTOPHE... NOBUKO KEATS BARRY R KEMELMAN ARNON KERR MAYA CHANTAI KEUNG PAUL HINSUM KEUNG PAUL H KEWAIRAMANI SONALI...

  16. The Army’s Ground Combat Vehicle (GCV) Program: Background and Issues for Congress

    Science.gov (United States)

    2014-02-28

    Daily, May 13, 2009. 6 Ibid. 7 John T. Bennett, “Carter: FCS Successor Effort Could Have Many Primes,” Defense News, May 18, 2009. 8 Marjorie...2014. 40 Zachary Fryer- Biggs , “U.S. Army Official Defends GCV Against Attacks,” Defense News, February 25, 2014. 41Assistant Secretary of the Army

  17. 77 FR 45332 - Wrangell-Petersburg Resource Advisory Committee

    Science.gov (United States)

    2012-07-31

    ... North Nordic Drive in Petersburg, Alaska. Interested persons may attend in person at either location, or... 12 North Nordic Drive or the Wrangell Ranger District office at 525 Bennett Street during regular... language interpreting, assistive listening devices or other reasonable accommodation for access to the...

  18. 78 FR 54445 - Wrangell-Petersburg Resource Advisory Committee; Meeting

    Science.gov (United States)

    2013-09-04

    ... Nordic Drive in Petersburg, Alaska. Interested persons may attend in person at either location, or by... Nordic Drive or the Wrangell Ranger District office at 525 Bennett Street during regular office hours... advance for sign language interpreting, assistive listening devices or other reasonable accomodation for...

  19. Student Pressure Subject of Debate

    Science.gov (United States)

    Gewertz, Catherine

    2006-01-01

    This article discusses student pressure as a subject of debate. The latest debate about schoolwork is being fueled by three recent books: "The Homework Myth" by Alfie Kohn, "The Case Against Homework" by Sara Bennett and Nancy Kalish, and "The Overachievers", by Alexandra Robbins, which depicts overextended high…

  20. Between Transparency and Censorship

    DEFF Research Database (Denmark)

    Uldam, Julie; Krause Hansen, Hans

    Internet technologies have been celebrated for their potential to help civil society actors expose discrepancies between companies’ words and practices (Bennett, 2005). Recent reporting on dangerous and unethical business practices gestures towards an increased visibility of corporations vis-à-vi...

  1. Intensive Behavioral Treatment of Urinary Incontinence of Children with Autism Spectrum Disorders: An Archival Analysis of Procedures and Outcomes from an Outpatient Clinic

    Science.gov (United States)

    Hanney, Nicole M.; Jostad, Candice M.; LeBlanc, Linda A.; Carr, James E.; Castile, Allison J.

    2013-01-01

    LeBlanc, Crossett, Bennett, Detweiler, and Carr (2005) described an outpatient model for conducting intensive toilet training with young children with autism using a modified Azrin and Foxx, protocol. In this article, we summarize the use of the protocol in an outpatient setting and the outcomes achieved with a large sample of children with autism…

  2. Effect of nanoclay on the nonisothermal crystallization of poly(propylene) and its blend with poly[(butylene succinate)-co-adipate

    CSIR Research Space (South Africa)

    Bandyopadhyay, J

    2012-05-01

    Full Text Available and nanoclay modified PP/PBSA blend composite samples was evaluated by using Kissinger and Augis-Bennett methods. The results showed that the absolute value of the activation energy for the PP matrix crystallization was increased in the case of PP/PBSA blend...

  3. Learning about the Weather through an Integrated STEM Approach

    Science.gov (United States)

    Serin, Gokhan

    2014-01-01

    Introducing concepts through an integrated science, technology, engineering and mathematics (STEM) approach can promote interest and motivation (Bennett, Lubben and Hogarth, 2007; Bybee, 2010). However, implementing such an approach effectively in a classroom setting, with relevant links, is a challenging task. Some concepts lend themselves more…

  4. Analysis of steady-state salt-water upconing with application at Truro well field, Cape Cod, Massachusetts

    Science.gov (United States)

    Reilly, T.E.; Frimpter, M.H.; LeBlanc, D.R.; Goodman, A.S.

    1987-01-01

    Sharp interface methods have been used successfully to describe the physics of upconing. A finite-element model is developed to simulate a sharp interface for determination of the steady-state position of the interface and maximum permissible well discharges. The model developed is compared to previous published electric-analog model results of Bennett and others (1968). -from Authors

  5. 29 CFR 776.29 - Instrumentalities and channels of interstate commerce.

    Science.gov (United States)

    2010-07-01

    ... OF 1938 Construction Industry Individual Employee Coverage in the Construction Industry § 776.29... v. Brown Engineering Co., ante. (d) Construction of new facilities. (1) In a case before the United... construction employees from being engaged in commerce. 32 Mitchell v. Vollmer, ante; Bennett. v. V. P. Loftis...

  6. A Review of Models for Computer-Based Testing. Research Report 2011-12

    Science.gov (United States)

    Luecht, Richard M.; Sireci, Stephen G.

    2011-01-01

    Over the past four decades, there has been incremental growth in computer-based testing (CBT) as a viable alternative to paper-and-pencil testing. However, the transition to CBT is neither easy nor inexpensive. As Drasgow, Luecht, and Bennett (2006) noted, many design engineering, test development, operations/logistics, and psychometric changes…

  7. 77 FR 71002 - Ocean Transportation Intermediary License Applicants

    Science.gov (United States)

    2012-11-28

    ..., Washington, DC 20573, by telephone at (202) 523-5843 or by email at [email protected] . 5G Logistics Solutions LLC..., President. Application Type: New NVO & OFF License. Bennett International Transport, L.L.C. (NVO & OFF.... Castano, COO. Application Type: New NVO & OFF License. James J. Boyle & Co. dba JJB Global Logistics Co...

  8. Metal interactions between the polychaete Branchipolynoe seepensis and the mussel Bathymodiolus azoricus from Mid-Atlantic-Ridge hydrothermal vent fields.

    Science.gov (United States)

    Bebianno, Maria João; Cardoso, Cátia; Gomes, Tânia; Blasco, Julian; Santos, Ricardo Serrão; Colaço, Ana

    2018-04-01

    The vent blood-red commensal polynoid polychaete Branchipolynoe seepensis is commonly found in the pallial cavity of the vent mussel Bathymodiolus azoricus, the dominant bivalve species along the Mid-Atlantic-Ridge (MAR) and is known to be kleptoparasitic. Mussels were collected from three hydrothermal vent fields in the MAR: Menez Gwen (850 m depth, MG2, MG3 and MG4), Lucky Strike (1700 m depth, Montségur-MS and Eiffel Tower-ET) and Rainbow (2300 m depth). Polychaetes were absent in all Menez Gwen vent mussels, while the highest percentage was detected in mussels from Lucky Strike, where more than 70% of the mussels had at least one polychaete in their mantle cavity, followed by Rainbow with 33% of mussels with polychaetes. Total metal concentrations (Ag, Cd, Co, Cu, Fe, Mn, Ni and Zn) were determined in polychaetes whole body and in the mussel tissues (gills, digestive gland and mantle). To understand the possible metal interactions between symbiont and host, the activity of antioxidant defence (catalase (CAT), metallothioneins (MTs)), biotransformation enzymes (glutathione-s-transferases (GST)) activities and lipid peroxidation (LPO) were determined in polychaete whole soft tissues and in mussel tissues (gills, digestive gland and mantle). Metal concentrations in polychaetes and mussels tissues indicated that the accumulation patterns were species specific and also influenced by, and possibly dependent upon, the inter- and intra-variation of vent physico-chemistry between hydrothermal fields. Despite not detecting any strong correlations between metal and enzymes activities in polychaetes and mussels, when in presence of polychaetes, mussels presented less metal concentrations in the gills and digestive gland and lower activity of enzymatic biomarkers. This leads to infer that the polychaete plays a role on the detoxification process, and the interaction between the polychaete mussel association is probably an adaptation to metals concentrations at the

  9. Why Toilets Are About Class and Gender Wars with Introduction

    Directory of Open Access Journals (Sweden)

    Sohaila Abdulali

    2017-02-01

    Full Text Available Reprint of “Why Toilets are About Class and Gender Wars” by Sohaila Abdulali with introduction by Radical Teacher editor Michael Bennett. Sohaila Abdulali’s article, “Why Toilets are About Class and Gender Wars” has been reprinted with permission from the publisher, HT Media Ltd and can be found in it’s original format at http://www.livemint.com/Leisure/38Jqn3MImrOPK04C1Uw5hN/How-toilets-are-a-flashpoint-for-gender-wars.html. The reprinted article on pages 55-56 is copyrighted to HT Media Ltd and they reserve all rights. The introduction to this article by Michael Bennett is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License. Reprinted with permission by HT Media Ltd, all rights reserved.

  10. Pre-Analysis for Safety-Related Verification Test Using TASS/SMR Code

    Energy Technology Data Exchange (ETDEWEB)

    Ra, I. S.; Kim, H. J.; Jeon, G. H. [ACTS Ltd., Daejeon (Korea, Republic of)

    2010-01-15

    General trends of TASS/SMR simulation were similar to those in both ORNF test and BENNETT test conducted to verify core heat transfer model in TASS/SMR. In high mass flux, however, a CHF location in the analytical result of TASS/SMR was greatly deviated from BENNETT test result. TASS/SMR gave better results in heterogeneous option that in homogeneous option in both KIT test, which was a steady state test with an inlet flow, and GE-LEVEL Swell test, which a transient test without an inlet flow. TASS/SMR simulation for SMD Long and Short test gave a good agreement with the test results in showing a reasonable predictability of critical flow model. But, in the case of Marviken test, the analytical result was not similar to the test result after the timing of vapor generation

  11. Compression-after-Impact and Bend Fatigue Results of Glass/Epoxy Composites with Compliant Interlayer and Needling Interlaminar Enhancements

    Science.gov (United States)

    2017-05-22

    performance and durability observed in thick- section composites,14,15 the testing methodology presented for the 2-D materials was also extended to 3...Weapons and Materials Research Directorate, ARL Bradley D Lawrence Bennett Aerospace, Inc., Cary, NC Approved for public release...interlaminar enhancements decreased the strength and stiffness of the material but improved the durability. Needling had a larger improvement in compression

  12. Bagatellid : maailm / Nele-Eva Steinfeld, Ivo Heinloo

    Index Scriptorium Estoniae

    Steinfeld, Nele-Eva

    2011-01-01

    Muusikasõnumeid maailmast: Hollandi kultuurielu kriis. Toetus Londoni Filharmooniaorkestrist vallandatud muusikutele. Veebilehest: arkivmusic.eu. Lahkus Kurt Sanderling. Hiinas keelustati ajaloolise sisuga ooper. Dirigent Mark Gorenstein vallandati ametist. Beethoveni kvarteti taastatud osa. Värskeid plaadilepinguid. Bostoni sümfooniaorkester otsib muusikalist juhti. Fabio Luisil probleem kodumaiste ooperimajadega. Itaalia jazzi pevad New Yorgis. Värskeid plaate jazzimaailmast. Tony Bennett purustas rekordi. DownBeati aasta jazzmuusik on Jason Moran

  13. Journal of Mormon History Vol. 13, 1986

    OpenAIRE

    1986-01-01

    --Mormon Women, Other Women: Paradoxes and Challenges Anne Firor Scott, 3 --Strangers in a Strange Land: Heber J. Grant and the Opening of the Japanese Mission Ronald W. Walker, 21 --Lamanism, Lymanism, and Cornfields Richard E. Bennett, 45 --Mormon Missionary Wives in Nineteenth Century Polynesia Carol Cornwall Madsen, 61 --The Federal Bench and Priesthood Authority: The Rise and Fall of John Fitch Kinney's Early Relationship with the Mormons Michael W. Homer...

  14. The need for power, need for influence, sense of power, and directiveness in female and male superiors and subordinates

    OpenAIRE

    Dagna Kocur; Eugenia Mandal

    2017-01-01

    Background The purpose of the study was to examine the phenomenon of power within an organisation from the vantage point of gender, the occupied position, earnings, and the number of subordinates. Participants and procedure The sample group comprised 107 female and 98 male participants. The mean age was 42.14 years (SD = 11.73). The study covered 100 superiors and 105 subordinates. The research tools were: the Need for Power and Influence Questionnaire (Bennett, 1988), th...

  15. Can the problem of the observability of other minds be solved in the lab?. Comment on "Seeing mental states: An experimental strategy for measuring the observability of other minds" by Cristina Becchio et al.

    Science.gov (United States)

    Puusepp, Vivian

    2018-03-01

    In the area of social cognition, several questions that were first discussed by philosophers, have inspired empirical scientists to invent new experimental paradigms in order to tackle related issues. The results of experiments conducted within these paradigms have in turn contributed to theoretical discussions. For example, the first false belief task [1] was developed after three philosophers, Dennett, Bennett, and Harman [2-4] independently argued that possession of the concept of belief is crucial to understanding others' mental states.

  16. Reproduction of Persian Gulf anemone fish (Amphiprion clarkii) in captive system

    OpenAIRE

    Javad Sahandi

    2011-01-01

    The present study was carried out to assess the reproduction of Persian Gulf anemone fish,Amphiprion clarkii (Bennett, 1830), in captive conditions with artificial features. Persian Gulf, havinggood relation with Indian Ocean, is one of the important niches of fishes and the specific position ofthis Gulf makes its fishes popular. The yellow tail clown fish which originates to this gulf has the bestsurvival rate and health than the other areas. Live food is the most important factor in product...

  17. Advanced MRI in Acute Military TBI

    Science.gov (United States)

    2015-11-01

    N Engl J Med 358:453-463. 413 10. Kennedy, J.E., Cullen , M.A., Amador, R.R., Huey, J.C., and Leal, F.O. 2010. Symptoms in military service members...Neurosurg Psychiatry 77:1180-1184. 502 44. Dempsey, K.E., Dorlac, W.C., Martin, K., Fang, R., Fox, C., Bennett, B., Williams , K., and Flaherty, S. 2009. 503

  18. Analytic eclecticism: Not perfect, but indispensable

    OpenAIRE

    Sil, Rudra; Katzenstein, Peter

    2010-01-01

    Following the pragmatist bent of our conceptualization of analytic eclecticism, we view the four excellent commentaries offered above as a welcome opportunity to engage in open-minded dialogue and to clarify certain defining attributes of eclectic scholarship. Two commentaries are offered by Andrew Bennett and Peter Haas, who are sympathetic critics of our work: They accept our premise that research confined to paradigms has built-in limits, but then offer some frank assessments of the challe...

  19. An operator description of entanglement matching in quantum teleportation

    International Nuclear Information System (INIS)

    Kurucz, Z; Koniorczyk, M; Adam, P; Janszky, J

    2003-01-01

    The antilinear operator representation of bipartite pure states of the relative state formulation of quantum mechanics is applied to describe quantum teleportation schemes utilizing an arbitrary pure state as the entangled resource. Bennett type teleportation schemes with nonmaximally entangled pure states are characterized and the notion of 'entanglement matching' is introduced in general. Examples, including a scheme based on coherent-state superposition states of the electromagnetic field, are provided

  20. Pile-ou-face et mise-en-gage de bit quantique : bornes optimales, constructions pratiques et sécurité calculatoire

    OpenAIRE

    Chailloux , André

    2011-01-01

    Quantum computing allows us to revisit the study of quantum cryptographic primitives with information theoretic security. In 1984, Bennett and Brassard presented a protocol of quantum key distribution. In this protocol, Alice and Bob cooperate in order to share a common secret key k, which has to be unknown for a third party that has access to the communication channel. They showed how to perform this task quantumly with an information theoretic security; which is impossible classically.In my...

  1. Characterizing governance and benefits of payments for watershed services in Europe

    OpenAIRE

    Leonardi, Alessandro

    2015-01-01

    Globally, Payments for Watershed Services (PWS) make-up the largest ecosystem service market (Bennett et al., 2014b). Driven by the negative impacts of climate change and economic development for water quantity and quality provision, hydrological services are assuming a leading priority among forest and agriculture-based ecosystems. Indeed, afforestation and sustainable agriculture tend to be among the most rewarded management practices under contracts aiming to achieve additionality in upstr...

  2. Free-Space Quantum Key Distribution with a High Generation Rate KTP Waveguide Photon-Pair Source

    Science.gov (United States)

    Wilson, J.; Chaffee, D.; Wilson, N.; Lekki, J.; Tokars, R.; Pouch, J.; Lind, A.; Cavin, J.; Helmick, S.; Roberts, T.; hide

    2016-01-01

    NASA awarded Small Business Innovative Research (SBIR) contracts to AdvR, Inc to develop a high generation rate source of entangled photons that could be used to explore quantum key distribution (QKD) protocols. The final product, a photon pair source using a dual-element periodically- poled potassium titanyl phosphate (KTP) waveguide, was delivered to NASA Glenn Research Center in June of 2015. This paper describes the source, its characterization, and its performance in a B92 (Bennett, 1992) protocol QKD experiment.

  3. Current perspectives on attachment and bonding in the dog?human dyad

    OpenAIRE

    Payne, Elyssa; Bennett, Pauleen C; McGreevy, Paul D

    2015-01-01

    Elyssa Payne,1 Pauleen C Bennett,2 Paul D McGreevy1 1Faculty of Veterinary Science, University of Sydney, Sydney, NSW, Australia; 2School of Psychological Science, La Trobe University, Bendigo, VIC, Australia Abstract: This article reviews recent research concerning dog–human relationships and how attributes that arise from them can be measured. It highlights the influence of human characteristics on dog behavior, and consequently, the dog–human bond. Of particular import...

  4. Authoritarian Decision-Making and Alternative Patterns of Power and Influence: The Mexican IBM Case

    Science.gov (United States)

    1988-05-01

    de Control de Cambios," pp. 1341-1345 and " Decreto Sobre Control de Camblos," pp. 1346-1354. Acceleration of the rate of devaluation was announced in...see " Decreto para la raclonalizaclon de [a industrla automotrlz," Diarlo OfIclal, 15 September 1983 as cited by Bennett and Sharpe, Transnational...v ’ i i I . . . . . . . ". . . . 170 the rules of foreign Investment in the area of computation where IBM wanted to expand Its operations. Programa

  5. Puppy parties and beyond: the role of early age socialization practices on adult dog behavior

    OpenAIRE

    Howell, Tiffani; King,Tammie; Bennett,Pauleen

    2015-01-01

    Tiffani J Howell, Tammie King, Pauleen C Bennett School of Psychology and Public Health, La Trobe University, Bendigo, VIC, Australia Abstract: The most common role of a domestic dog in the developed world currently is that of companion. Puppy socialization practices play a large role in the development of well-adjusted adult dogs that display few undesirable behaviors, and which can establish a positive, lifelong relationship with their owner. Age-appropriate socialization practices should ...

  6. The Influence of the Competition in Contracting Act on the Volume of Competitive Prime Contract Awards for Major Hard Goods and Non-Major Hard Goods Purchased by the Department of Defense

    Science.gov (United States)

    1988-11-16

    parts was less than for sole source acquired spare parts see, Alan E. Olsen ; James E. Cunningham; and Donald J. Wilkins, "A Cost-Benefit Analysis of...Washington, D.C. Logistc Management-Institute, MUTT- I 339 I Zusman, Morris; Asher, Norman; Wetzler, Elliot; Bennett, Debbie; Gustaves, Selmer ; Higgins...Acquisition." Masters Thesis, Naval Postgraduate School, 1984. Olsen , Alan E.; Cunningham, James E.; and Wilkins, Donald J. "A Cost-Benefit Analysis of

  7. Sites and Landforms: A Phase One Archaeological Sampling Survey at Camp Ripley, Morrison County, Minnesota

    Science.gov (United States)

    1988-12-31

    research of Obadiah StoutI Bennett, an entreprenuer at the Chippewa townsite with an obvious knack for selling undeveloped lots to young women . Dr. Elden...proved a formidable challenge to settlement and agriculture. I The belief that former pine lands were of no value for farming (Anonymous 1894:12) did...cause him to slur his words and lose his train of thought. His was a challenging interview but well worth the time. Among the topics of conversation

  8. Fatigue 󈨛. Volume 3,

    Science.gov (United States)

    1987-06-01

    1985, PVP-Vol.99, ASME, NY, 1985, p 17-38. (11) C Amzallag and JL Bernard , "Proc, IAEA Specialists Mtg on Sub- critical Crack Growth", Freiburg, May...Amborski, D.J. In Microstructural Science. Edited by J.E. Bennett, L.R. Cornwell , and J.L. McCall, Elsevier, New York, 1978, pp. 143-158. (18) Wright, K

  9. Operational art in the 1962 Sino Indian War

    Science.gov (United States)

    2016-05-26

    and Theory Development in the Social Sciences.41 Structurally, the monograph will apply a set of standardized questions to the case study. These...the strategic military objectives. 42 Bennett and George, Case Studies and Theory Development in the Social Sciences, 69. 43 Ibid., 67, 70. 16...it could no longer avoid a war with India.79 The CMC developed a counterattack to destroy Indian forces and advance south into Indian territory “in

  10. An Analysis of the Relationship between Cultural- Cinematic Policies of Iran and the Movies Introduced as the Representative of Iranian Cinema to the Academy of Oskar

    OpenAIRE

    Azam Ravadrad; Amirhossein Tamannaei

    2013-01-01

    In this article the relationship between cultural policies and cinema in Iran is studied through a comparison between cultural-cinematic policies of two different Iranian states during years 1377 and 1389 and their effects on selecting the representative of Iranian cinema to the academy of Oskar. The theoretical framework of the study is based on the field of sociology of cinema, concentrating on Tony Bennett's theory relating to the effect of politics and state on form and content of cultura...

  11. Journal of Mormon History Vol. 15, 1989

    OpenAIRE

    1989-01-01

    --Irreconcilable Differences: David H. Smith's Relationship with the Muse of Mormon History Valeen Tippetts Avery, 3 --The New England Origins of Mormonism Revisited Grant Underwood, 15 --Anti-Mormonism in Illinois: Thomas C. Sharp's Unfinished History of the Mormon War, 1845 Roger D. Launius, 27 Houses with Two Fronts: The Evolution of Domestic Architectural Design in a Mormon Community Keith Bennett and Thomas Carter, 47 --The Mormon Reformation of 1856-1857: The...

  12. Nanotechnology in Medicine: Implications of converging technologies on humanity

    OpenAIRE

    Debra Bennett-Woods

    2006-01-01

    Nanotechnology holds great potential as an enabler of a wide range of biotechnologies that will change the face of medicine and may eventually alter the very definition of human health. Deb Bennett-Woods argues that these changes will also pose unprecedented challenges regarding access to health-related technologies, the meaning of consent, and the nature of human identity. Development (2006) 49, 54–59. doi:10.1057/palgrave.development.1100297

  13. Key rate of quantum key distribution with hashed two-way classical communication

    International Nuclear Information System (INIS)

    Watanabe, Shun; Matsumoto, Ryutaroh; Uyematsu, Tomohiko; Kawano, Yasuhito

    2007-01-01

    We propose an information reconciliation protocol that uses two-way classical communication. The key rates of quantum key distribution (QKD) protocols that use our protocol are higher than those using previously known protocols for a wide range of error rates for the Bennett-Brassard 1984 and six-state protocols. We also clarify the relation between the proposed and known QKD protocols, and the relation between the proposed protocol and entanglement distillation protocols

  14. #Hashtagaktivisme: En netnografisk undersøgelse af #WhatIReallyReallyWant på Twitter

    OpenAIRE

    Randeris, Sarah Schwab; Kristiansen, Nanna Würtz; Mogensen, Sofia Tolstrup

    2016-01-01

    This paper will examine a case of online activism, more precisely hashtag activism in a semiotic analysis of the #WhatIReallyReallyWant campaign, launched by the organization Global Goals on July 5th 2016. Furthermore an ethnographic examination of Twitter users’ online behavior in using the hashtag is made. Based on these examinations and the theory of Bennett & Segerberg’s The Logic of Connective Action this study will assess whether online activism is an expression of a modern tendency...

  15. Evaluation of PM-3 Chemistry Data and Possible Interpretations of 3H Observations, Revision 0

    Energy Technology Data Exchange (ETDEWEB)

    Andrews, Robert [Navarro-Intera, LLC (N-I), Las Vegas, NV (United States); Marutzky, Sam J. [Navarro-Intera, LLC (N-I), Las Vegas, NV (United States)

    2015-02-01

    This report summarizes the analyses of the groundwater results from sampling of PM-3-1 (deep) and PM-3-2 (shallow), with a particular focus of evaluating the groundwater geochemistry data in comparison to the geochemistry observed in other wells in the Thirsty Canyon area as well as to evaluate the potential source of 3H observed in these piezometers from previous sampling activities, which employed depth-discrete bailers or a Bennett submersible piston pump.

  16. Mining Tasks from the Web Anchor Text Graph: MSR Notebook Paper for the TREC 2015 Tasks Track

    Science.gov (United States)

    2015-11-20

    Mining Tasks from the Web Anchor Text Graph: MSR Notebook Paper for the TREC 2015 Tasks Track Paul N. Bennett Microsoft Research Redmond, USA pauben...anchor text graph has proven useful in the general realm of query reformulation [2], we sought to quantify the value of extracting key phrases from...anchor text in the broader setting of the task understanding track. Given a query, our approach considers a simple method for identifying a relevant

  17. Characterization of Residual Stress as a Function of Friction Stir Welding Parameters in ODS Steel MA956

    Science.gov (United States)

    2013-06-01

    dispersion strengthened - Eurofer steel ,” J. Nucl. Mater., vol. 416 , pp. 2229, Sep 1, 2011. [10] H. J. K. Lemmen and K. J. Sudmeijer, I, “Laser beam...Reynolds and W. Tang, “Structure, properties, and residual stress of 304L stainless steel friction stir welds,” Scr. Mater., vol. 48, pp. 12891294...OF RESIDUAL STRESS AS A FUNCTION OF FRICTION STIR WELDING PARAMETERS IN ODS STEEL MA956 by Martin S. Bennett June 2013 Thesis Advisor

  18. Sovremennoje iskusstvo v angliskom parke

    Index Scriptorium Estoniae

    2003-01-01

    Performance-kunsti rühmituse Virus (Alan Holligan, Stewart Bennett ja Ewan Robertson Edinburghist) projekt "Sekkumine - kaasaegne kunst inglise pargis" toimub Väliskunsti muuseumis, Mikkeli muuseumis ja selle ümbruses. Inspiratsiooniks on Kadrioru park ning parginäitused Mikkeli ja Väliskunsti muuseumis. Radical Loyalty projektist, millele pani aluse Chris Evans (Glasgow) 2002. a. ja mille raames plaanitakse skulptuuripargi rajamist Järvakandisse. Evansi projekt presentatsiooni formaadis toimub Mikkeli muuseumis video ja fotode abil

  19. A Reduced-Order Model for Evaluating the Dynamic Response of Multilayer Plates to Impulsive Loads

    Science.gov (United States)

    2016-04-12

    A REDUCED-ORDER MODEL FOR EVALUATING THE DYNAMIC RESPONSE OF MULTILAYER PLATES TO IMPULSIVE LOADS Weiran Jiang, Alyssa Bennett, Nickolas...innovative multilayer materials or structures to optimize the dynamic performance as a mechanism to absorb and spread energy from an impulsive load...models. • Optimizing the structural weight and levels of protection of the multilayer plates with a good combination of materials. Technical Approach 2016

  20. Reference: 385 [Arabidopsis Phenome Database[Archive

    Lifescience Database Archive (English)

    Full Text Available 385 http://metadb.riken.jp/db/SciNetS_ria224i/cria224u4ria224u16690816i Dharmasiri...y Science (New York, N.Y.) Bennett M J|Dharmasiri N|Dharmasiri S|Estelle M|Kowalchyk M|Marchant A|Mills S|Mockaitis K|Sandberg G|Singh S K|Swarup R

  1. Characterizing locally distinguishable orthogonal product states

    OpenAIRE

    Feng, Yuan; Shi, Yaoyun

    2007-01-01

    Bennett et al. \\cite{BDF+99} identified a set of orthogonal {\\em product} states in the $3\\otimes 3$ Hilbert space such that reliably distinguishing those states requires non-local quantum operations. While more examples have been found for this counter-intuitive ``nonlocality without entanglement'' phenomenon, a complete and computationally verifiable characterization for all such sets of states remains unknown. In this Letter, we give such a characterization for the $3\\otimes 3$ space.

  2. Er apostrofen et økologisk instrument?

    DEFF Research Database (Denmark)

    Lind, Hans

    2017-01-01

    The article investigates the relationship between the lyrical apostrophe and ecological thinking. Drawing on literary theories and ecological thinkers such as Jane Bennett and Timothy Morton, the article concludes that the apostrophe is related to the concept of ecological sensibility and is usef...... for communicating complex ecological ideas such as coexistence. These conclusions are based on an analysis of several poems containing apostrophes and a discussion of the role of poetry in society and the ability to facilitate ecological thinking and awareness....

  3. Fungal-Transformation of Surrogate Sulphides and Carbonaceous ...

    African Journals Online (AJOL)

    Michael

    2017-12-02

    Dec 2, 2017 ... ... 1 to 5 (Bennett and. Tributsch, 1978; Sand et al., 1995). 4H. 4SO. 2Fe. O. 2H. 7O. 2FeS. -2. 4 .... (50 mg/L in 1 g/L sodium hydroxide and 0.5 g/L ... adjusted to 4 using sodium hydroxide. ... Au. 1. 25 μ. (8). In Equation 8, IC and FC are the initial and final ... amount of gold cyanide complex; about 750 g/t. In.

  4. Strategic Usefulness of Conventional Force/Special Operations Force Interdependence in Irregular Warfare

    Science.gov (United States)

    2017-06-01

    surgical strike missions, often deep in denied territory like the Osama bin Laden raid in Pakistan or counterterrorism raids in Yemen . “Surgical strike...70 Rothstein, “Less is More,” 283. 71 Alexander George and Andrew Bennett, Case Studies and Theory Development in the Social Sciences... Media Network, September 16, 2011. 75 Ibid. 76 Max Boot, War Made New: Weapons, Warriors, and the Making of the Modern World (New York: Penguin

  5. Army Science Conference (16th) Proceedings Held in Fort Monroe, Virginia on 25-27 October 1988. Volume 2. Principal Authors K through R

    Science.gov (United States)

    1988-10-27

    more confident make fewer errors. 2. Mechanical Aptitude- The Bennett Mechanical Aptitude Test ( BMAT ) meas- l - ures one’s understanding of physical...relationships and consists of 68 multiple choice questions. The average score on the test was 46.25. Men scored significantly higher on the BMAT with a...scores on the BMAT (F = 6. 08, p < 473 S. POLLACK, PEREZ & PARK 0.0005) were held constant. Thus, had subjects’ mechanical aptitude been controlled for

  6. Evaluating the Efficacy of a Low-Impact Delivery System for In situ Treatment of Sediments Contaminated with Methylmercury and Other Hydrophobic Chemicals

    Science.gov (United States)

    2016-02-01

    warfare research and development activities since 1917, including laboratory research, field testing, and pilot- and full-scale chemical materials...core liners. 5.6.3 Decontamination All re-useable sampling equipment used to collect samples for chemical analysis (i.e., spoons, trowels...and Other Hydrophobic Chemicals ESTCP Project ER-200835 FEBRUARY 2016 Charles Menzie Bennett Amos Susan Kane Driscoll Exponent Upal

  7. Are Ascriptions of Intentionality to the Brain Incoherent?

    DEFF Research Database (Denmark)

    Presskorn-Thygesen, Thomas

    The ascriptions of ‘agency’ or ‘intentionality’ to the brain has long been regarded with suspicion from social scientists and philosophers. In the talk, I will argue that this suspicion is perfectly legitimate and that the standard response from the defenders of cognitive neuroscience is illegiti...... to the brain are conceptually incoherent because it commits a mereological fallacy (Bennett&Hacker 2001, 2007)....

  8. Online lurking and offline action: young people, social media, and (non-)participation

    OpenAIRE

    Gustafsson, Nils

    2017-01-01

    Research has described political participation as becoming ever more individualised (eg Bennett & Segerberg, 2013). This has been argued to be connected to the general individualisation of society, but also to affordances made possible by new media. One line of research explains political participation combining selective benefits (Olson, 1965), psychological factors (Klandermans & van Stekelburg, 2013) and social incentives (Cialdini, 2009). However, it is not clear how social media and its ...

  9. Nuclear Weapon Effect Research at PSR (Pacific-Sierra Research Corporation) - 1983. Symptomatology of Acute Radiation Effects in Humans after Exposure to Doses of 75 to 4500 Rads (cGy) Free-in-Air

    Science.gov (United States)

    1984-08-31

    David L. Auton and Cyrus P. Knowles supervised the research, and the IDP Core Group provided advisory support. Related reports include: George H. Anno...Cruiser-Destroyer Group 8 ATTN: Dir of Libraries I ATTN: Commander USA Military Academy David Taylor Naval Ship R&D Ctr ATTN: Doc Library ATTN.: Code... Shrier ATTN: V. Jackson 2 cys ATTN: Security & Subnation Conflict Horizons Technology, Inc ATTN: J. Palmer Rand CorpATTN: B. Bennett lIT Research

  10. Nuclear Weapon Effect Research at PSR (Pacific-Sierra Research Corporation) - 1983. Acute Radiation Effects on Individual Crewmember Performance

    Science.gov (United States)

    1984-08-31

    information and data from other IDP investigations. Along with the IDP Core Group, DNA staff members David L. Auton and Robert W. Young of Science and...Studies Cruier-Destroyer Group 8 ATTN: Dir of Libraries ATTN: Commander USA Military Academy David Taylor Naval Ship R&D Ctr ATTN: Doc Library ATTN: Code...ATIN: S. Shrier 2 cys ATTN: Security & Subnation Conflict Horizons Technology, Inc Rand Corp ATTN: J. Palmer ATTN: B. Bennett lIT Research Ins t itute

  11. Advanced Techniques in Crash Impact Protection and Emergency Egress from Air Transport Aircraft

    Science.gov (United States)

    1976-06-01

    Lift Technology program for generating commercial transport innovation . However, the YC-15 military version with a high wing and Mach 0.75 cruise...survival technology is constantly changing as new materials, techniques, innovations , and requirements are developed. Nevertheless, the most valid data for...la Propriete Industrielle , No. 331 926, May 11, 1903. 784. Robbins, D.H., V.L Roberts, A.W. Henke, B.F. Raney, R.O. Bennett, and J.H. McElhaney

  12. Homunculi, the mereological fallacy and crypto-dualism. Two dilemmas for the intentional stance

    OpenAIRE

    Balderas-Rosas, G.C. (Gloria del Carmen)

    2014-01-01

    Neuroscientist Maxwell Bennett and philosopher Peter Hacker defend the need to eradicate the mereological fallacy of cognitive neuroscience. This fallacy attributes to the parts of an animal psychological predicates that make sense only when applied to the whole animal. In contrast, philosopher Daniel Dennett argues that it is possible to explain behavior and cognitive abilities by applying the Intentional Stance (IS) to the brain, a stance that attributes increasingly simple psychological ca...

  13. Proceedings of the AMEDD (Army Medical Department) Clinical Psychology Short Course: Military Applications of Neuropsychology and Health Psychology Held in Presidio of San Francisco, California on 9-13 March 1987. Volume 1

    Science.gov (United States)

    1987-03-01

    syndrome. Medical Clinics of North America, 70, 708-719. Barnes, Deborah (1986) Grim projections for AIDS epidemic. Science, 232, 1589- 1590 . Bennett, J. A...65_ 96-97. Redfield, R. R., Wright, D. C. & Tramount, E. C. (1986) The Walter Reed staging classification for IfrLV-IIt/LAV Infection. The New England ... women with blood and cardiovascular findings. Circulation, 24, 1173-1184. Sackett, D., Taylor, D., Haynes, R., Johnson, A., Gibson, E., & Roberts, R

  14. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Tarun Kanti Ghosh K Adcox S S Adler N Ajitanand Y Akiba J Alexander L Aphecetche Y Arai S H Aronson R Averbeck T C Awes K N Barish P D Barnes J Barrette B Bassalleck S Bathe V Baublis A Bazilevsky S Belikov F G Bellaiche S T Belyaev M J Bennett Y Berdnikov S Botelho M L Brooks D S Brown N Bruner D Bucher ...

  15. La boîte à outil sur l'application des connaissances | CRDI - Centre ...

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

    1 nov. 2011 ... Gavin Bennett est journaliste, auteur et consultant en communications stratégiques. Nasreen Jessani est conseillère au sein du groupe de l'application des connaissances et des politiques, l'un des deux piliers du groupe de travail chargé des études par pays du Groupe de travail de référence sur ...

  16. Food-web complexity across hydrothermal vents on the Azores triple junction

    Science.gov (United States)

    Portail, Marie; Brandily, Christophe; Cathalot, Cécile; Colaço, Ana; Gélinas, Yves; Husson, Bérengère; Sarradin, Pierre-Marie; Sarrazin, Jozée

    2018-01-01

    The assessment and comparison of food webs across various hydrothermal vent sites can enhance our understanding of ecological processes involved in the structure and function of biodiversity. The Menez Gwen, Lucky Strike and Rainbow vent fields are located on the Azores triple junction of the Mid-Atlantic Ridge. These fields have distinct depths (from 850 to 2320 m) and geological contexts (basaltic and ultramafic), but share similar faunal assemblages defined by the presence of foundation species that include Bathymodiolus azoricus, alvinocarid shrimp and gastropods. We compared the food webs of 13 faunal assemblages at these three sites using carbon and nitrogen stable isotope analyses (SIA). Results showed that photosynthesis-derived organic matter is a negligible basal source for vent food webs, at all depths. The contribution of methanotrophy versus autotrophy based on Calvin-Benson-Bassham (CBB) or reductive tricarboxylic acid (rTCA) cycles varied between and within vent fields according to the concentrations of reduced compounds (e.g. CH4, H2S). Species that were common to vent fields showed high trophic flexibility, suggesting weak trophic links to the metabolism of chemosynthetic primary producers. At the community level, a comparison of SIA-derived metrics between mussel assemblages from two vent fields (Menez Gwen & Lucky Strike) showed that the functional structure of food webs was highly similar in terms of basal niche diversification, functional specialization and redundancy. Coupling SIA to functional trait approaches included more variability within the analyses, but the functional structures were still highly comparable. These results suggest that despite variable environmental conditions (physico-chemical factors and basal sources) and faunal community structure, functional complexity remained relatively constant among mussel assemblages. This functional similarity may be favoured by the propensity of species to adapt to fluid variations and

  17. Identification and activity of acetate-assimilating bacteria in diffuse fluids venting from two deep-sea hydrothermal systems.

    Science.gov (United States)

    Winkel, Matthias; Pjevac, Petra; Kleiner, Manuel; Littmann, Sten; Meyerdierks, Anke; Amann, Rudolf; Mußmann, Marc

    2014-12-01

    Diffuse hydrothermal fluids often contain organic compounds such as hydrocarbons, lipids, and organic acids. Microorganisms consuming these compounds at hydrothermal sites are so far only known from cultivation-dependent studies. To identify potential heterotrophs without prior cultivation, we combined microbial community analysis with short-term incubations using (13)C-labeled acetate at two distinct hydrothermal systems. We followed cell growth and assimilation of (13)C into single cells by nanoSIMS combined with fluorescence in situ hybridization (FISH). In 55 °C-fluids from the Menez Gwen hydrothermal system/Mid-Atlantic Ridge, a novel epsilonproteobacterial group accounted for nearly all assimilation of acetate, representing the first aerobic acetate-consuming member of the Nautiliales. In contrast, Gammaproteobacteria dominated the (13) C-acetate assimilation in incubations of 37 °C-fluids from the back-arc hydrothermal system in the Manus Basin/Papua New Guinea. Here, 16S rRNA gene sequences were mostly related to mesophilic Marinobacter, reflecting the high content of seawater in these fluids. The rapid growth of microorganisms upon acetate addition suggests that acetate consumers in diffuse fluids are copiotrophic opportunists, which quickly exploit their energy sources, whenever available under the spatially and temporally highly fluctuating conditions. Our data provide first insights into the heterotrophic microbial community, catalyzing an under-investigated part of microbial carbon cycling at hydrothermal vents. © 2014 Federation of European Microbiological Societies. Published by John Wiley & Sons Ltd. All rights reserved.

  18. Global Precipitation Measurement. Report 1; Summary of the First GPM Partners Planning Workshop

    Science.gov (United States)

    Shepherd, J. Marshall; Mehta, Amita; Smith, Eric A. (Editor); Adams, W. James (Editor)

    2002-01-01

    This report provides a synopsis of the proceedings of the First Global Precipitation Measurement (GPM) Partners Planning Workshop held at the University of Maryland, College Park, from May 16 to 18, 2001. GPM consists of a multi-member global satellite constellation (i.e., an international set of satellite missions) and the accompanying scientific research program, with the main goal of providing frequent, accurate, and globally distributed precipitation measurements essential in understanding several fundamental issues associated with the global water and energy cycle (GWEC). The exchange of scientific and technical information at this and subsequent GPM workshops between representatives from around the world represents a key step in the formulation phase of GPM mission development. The U.S. National Aeronautics and Space Agency (NASA), the National Space Development Agency of Japan (NASDA), and other interested agencies from nations around the world seek to observe, understand, and model the Earth system to learn how it is changing and what consequences these changes have on life, particularly as they pertain to hydrological processes and the availability of fresh water resources. GWEN processes are central to a broader understanding of the Earth system.

  19. Microsatellite markers in avocado (Persea americana Mill.): genealogical relationships among cultivated avocado genotypes.

    Science.gov (United States)

    Ashworth, V E T M; Clegg, M T

    2003-01-01

    Twenty-five microsatellite markers uniquely differentiated 35 avocado cultivars and two wild relatives. Average heterozygosity was high (60.7%), ranging from 32% in P. steyermarkii to 84% in Fuerte and Bacon. In a subset of 15 cultivars, heterozygosity averaged 63.5% for microsatellites, compared to 41.8% for restriction fragment length polymorphisms (RFLPs). A neighbor-joining tree, according to average shared allele distances, consisted of three clusters likely corresponding to the botanical races of avocado and intermediate clusters uniting genotypes of presumably racially hybrid origin. Several results were at odds with existing botanical assignments that are sometimes rendered difficult by incomplete pedigree information, the complexity of the hybrid status (multiple backcrossing), or both. For example, cv. Harvest clustered with the Guatemalan race cultivars, yet it is derived from the Guatemalan x Mexican hybrid cv. Gwen. Persea schiedeana grouped with cv. Bacon. The rootstock G875 emerged as the most divergent genotype in our data set. Considerable diversity was found particularly among accessions from Guatemala, including G810 (West Indian race), G6 (Mexican race), G755A (hybrid Guatemalan x P. schiedeana), and G875 (probably not P. americana). Low bootstrap support, even upon exclusion of (known) hybrid genotypes from the data matrix, suggests the existence of ancient hybridization or that the botanical races originated more recently than previously thought.

  20. The Physics and Materials Science of Superheroes

    Science.gov (United States)

    Kakalios, James

    While physicists, engineers and materials scientists don't typically consult comic books when selecting research topics; innovations first introduced in superhero adventures as fiction can sometimes find their way off the comic book page and into reality. As amazing as the Fantastic Four's powers is the fact that their costumes are undamaged when the Human Torch flames on or Mr. Fantastic stretches his elastic body. In shape memory materials, an external force or torque induces a structural change that is reversed upon warming, a feature appreciated by Mr. Fantastic. Spider-Man's wall crawling ability has been ascribed to the same van der Waals attractive force that gecko lizards employ through the millions of microscopic hairs on their toes. Scientists have developed ``gecko tape, consisting of arrays of fibers that provide a strong enough attraction to support a modest weight (if this product ever becomes commercially available, I for one will never wait for the elevator again!). All this, and important topics such as: was it ``the fall or the webbing that killed Gwen Stacy, Spider-Man's girlfriend in the classic Amazing Spider-Man # 121, and the chemical composition of Captain America's shield, will be discussed. Superhero comic books often get their science right more often than one would expect!

  1. Loch ness, special operations executive and the first surgeon in paradise: Robert Kenneth Wilson (26.1.1899-6.6.1969).

    Science.gov (United States)

    Watters, David A K

    2007-12-01

    Lieutenant Colonel Robert Kenneth Wilson (1899-1969) was a surgeon who fought in both world wars and joined the Special Operations Executive parachuting behind enemy lines into Holland, France and Borneo, the last mission being with Australian forces (Semut II). He was an expert on firearms and gave opinion on ballistics at the Old Bailey during the 1930s. He also wrote a definitive text on automatic pistols with editions published in 1943 and 1975. He was an Edinburgh Fellow (1926), who had a practice in general surgery and gynaecology in Queen Anne Street during the 1930s. He took the famous 1934 'surgeon's photo' of the Loch Ness monster that was not admitted to be a hoax until 1994. After World War II, he became the first surgical specialist to work in the public service of the then Territory of Papua and New Guinea (1950-1956), where he wrote several papers on surgical topics. He married Gwen (1924), the daughter of Henrietta Gulliver, an Australian painter. They had two sons, Richard and Phillip. After practice he retired to Melbourne where he died of carcinoma oesophagus.

  2. Free-living nematode species (Nematoda) dwelling in hydrothermal sites of the North Mid-Atlantic Ridge

    Science.gov (United States)

    Tchesunov, Alexei V.

    2015-12-01

    Morphological descriptions of seven free-living nematode species from hydrothermal sites of the Mid-Atlantic Ridge are presented. Four of them are new for science: Paracanthonchus olgae sp. n. (Chromadorida, Cyatholaimidae), Prochromadora helenae sp. n. (Chromadorida, Chromadoridae), Prochaetosoma ventriverruca sp. n. (Desmodorida, Draconematidae) and Leptolaimus hydrothermalis sp. n. (Plectida, Leptolaimidae). Two species have been previously recorded in hydrothermal habitats, and one species is recorded for the first time in such an environment. Oncholaimus scanicus (Enoplida, Oncholaimidae) was formerly known from only the type locality in non-hydrothermal shallow milieu of the Norway Sea. O. scanicus is a very abundant species in Menez Gwen, Lucky Strike and Lost City hydrothermal sites, and population of the last locality differs from other two in some morphometric characteristics. Desmodora marci (Desmodorida, Desmodoridae) was previously known from other remote deep-sea hydrothermal localities in south-western and north-eastern Pacific. Halomonhystera vandoverae (Monhysterida, Monhysteridae) was described and repeatedly found in mass in Snake Pit hydrothermal site. The whole hydrothermal nematode assemblages are featured by low diversity in comparison with either shelf or deep-sea non-hydrothermal communities. The nematode species list of the Atlantic hydrothermal vents consists of representatives of common shallow-water genera; the new species are also related to some shelf species. On the average, the hydrothermal species differ from those of slope and abyssal plains of comparable depths by larger sizes, diversity of buccal structures, presence of food content in the gut and ripe eggs in uteri.

  3. An improved experimental model for peripheral neuropathy in rats

    Directory of Open Access Journals (Sweden)

    Q.M. Dias

    2013-03-01

    Full Text Available A modification of the Bennett and Xie chronic constriction injury model of peripheral painful neuropathy was developed in rats. Under tribromoethanol anesthesia, a single ligature with 100% cotton glace thread was placed around the right sciatic nerve proximal to its trifurcation. The change in the hind paw reflex threshold after mechanical stimulation observed with this modified model was compared to the change in threshold observed in rats subjected to the Bennett and Xie or the Kim and Chung spinal ligation models. The mechanical threshold was measured with an automated electronic von Frey apparatus 0, 2, 7, and 14 days after surgery, and this threshold was compared to that measured in sham rats. All injury models produced significant hyperalgesia in the operated hind limb. The modified model produced mean ± SD thresholds in g (19.98 ± 3.08, 14.98 ± 1.86, and 13.80 ± 1.00 at 2, 7, and 14 days after surgery, respectively similar to those obtained with the spinal ligation model (20.03 ± 1.99, 13.46 ± 2.55, and 12.46 ± 2.38 at 2, 7, and 14 days after surgery, respectively, but less variable when compared to the Bennett and Xie model (21.20 ± 8.06, 18.61 ± 7.69, and 18.76 ± 6.46 at 2, 7, and 14 days after surgery, respectively. The modified method required less surgical skill than the spinal nerve ligation model.

  4. The effect of helium on ventilator performance: study of five ventilators and a bedside Pitot tube spirometer.

    Science.gov (United States)

    Oppenheim-Eden, A; Cohen, Y; Weissman, C; Pizov, R

    2001-08-01

    To assess in vitro the performance of five mechanical ventilators-Siemens 300 and 900C (Siemens-Elma; Solna, Sweden), Puritan Bennett 7200 (Nellcor Puritan Bennett; Pleasanton, CA), Evita 4 (Dragerwerk; Lubeck, Germany), and Bear 1000 (Bear Medical Systems; Riverside CA)-and a bedside sidestream spirometer (Datex CS3 Respiratory Module; Datex-Ohmeda; Helsinki, Finland) during ventilation with helium-oxygen mixtures. In vitro study. ICUs of two university-affiliated hospitals. Each ventilator was connected to 100% helium through compressed air inlets and then tested at three to six different tidal volume (VT) settings using various helium-oxygen concentrations (fraction of inspired oxygen [FIO(2)] of 0.2 to 1.0). FIO(2) and VT were measured with the Datex CS3 spirometer, and VT was validated with a water-displacement spirometer. The Puritan Bennett 7200 ventilator did not function with helium. With the other four ventilators, delivered FIO(2) was lower than the set FIO(2). For the Siemens 300 and 900C ventilators, this difference could be explained by the lack of 21% oxygen when helium was connected to the air supply port, while for the other two ventilators, a nonlinear relation was found. The VT of the Siemens 300 ventilator was independent of helium concentration, while for the other three ventilators, delivered VT was greater than the set VT and was dependent on helium concentration. During ventilation with 80% helium and 20% oxygen, VT increased to 125% of set VT for the Siemens 900C ventilator, and more than doubled for the Evita 4 and Bear 1000 ventilators. Under the same conditions, the Datex CS3 spirometer underestimated the delivered VT by about 33%. At present, no mechanical ventilator is calibrated for use with helium. This investigation offers correction factors for four ventilators for ventilation with helium.

  5. An improved experimental model for peripheral neuropathy in rats

    International Nuclear Information System (INIS)

    Dias, Q.M.; Rossaneis, A.C.; Fais, R.S.; Prado, W.A.

    2013-01-01

    A modification of the Bennett and Xie chronic constriction injury model of peripheral painful neuropathy was developed in rats. Under tribromoethanol anesthesia, a single ligature with 100% cotton glace thread was placed around the right sciatic nerve proximal to its trifurcation. The change in the hind paw reflex threshold after mechanical stimulation observed with this modified model was compared to the change in threshold observed in rats subjected to the Bennett and Xie or the Kim and Chung spinal ligation models. The mechanical threshold was measured with an automated electronic von Frey apparatus 0, 2, 7, and 14 days after surgery, and this threshold was compared to that measured in sham rats. All injury models produced significant hyperalgesia in the operated hind limb. The modified model produced mean ± SD thresholds in g (19.98 ± 3.08, 14.98 ± 1.86, and 13.80 ± 1.00 at 2, 7, and 14 days after surgery, respectively) similar to those obtained with the spinal ligation model (20.03 ± 1.99, 13.46 ± 2.55, and 12.46 ± 2.38 at 2, 7, and 14 days after surgery, respectively), but less variable when compared to the Bennett and Xie model (21.20 ± 8.06, 18.61 ± 7.69, and 18.76 ± 6.46 at 2, 7, and 14 days after surgery, respectively). The modified method required less surgical skill than the spinal nerve ligation model

  6. An improved experimental model for peripheral neuropathy in rats

    Directory of Open Access Journals (Sweden)

    Q.M. Dias

    Full Text Available A modification of the Bennett and Xie chronic constriction injury model of peripheral painful neuropathy was developed in rats. Under tribromoethanol anesthesia, a single ligature with 100% cotton glace thread was placed around the right sciatic nerve proximal to its trifurcation. The change in the hind paw reflex threshold after mechanical stimulation observed with this modified model was compared to the change in threshold observed in rats subjected to the Bennett and Xie or the Kim and Chung spinal ligation models. The mechanical threshold was measured with an automated electronic von Frey apparatus 0, 2, 7, and 14 days after surgery, and this threshold was compared to that measured in sham rats. All injury models produced significant hyperalgesia in the operated hind limb. The modified model produced mean ± SD thresholds in g (19.98 ± 3.08, 14.98 ± 1.86, and 13.80 ± 1.00 at 2, 7, and 14 days after surgery, respectively similar to those obtained with the spinal ligation model (20.03 ± 1.99, 13.46 ± 2.55, and 12.46 ± 2.38 at 2, 7, and 14 days after surgery, respectively, but less variable when compared to the Bennett and Xie model (21.20 ± 8.06, 18.61 ± 7.69, and 18.76 ± 6.46 at 2, 7, and 14 days after surgery, respectively. The modified method required less surgical skill than the spinal nerve ligation model.

  7. An improved experimental model for peripheral neuropathy in rats

    Energy Technology Data Exchange (ETDEWEB)

    Dias, Q.M.; Rossaneis, A.C.; Fais, R.S.; Prado, W.A. [Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP (Brazil)

    2013-03-15

    A modification of the Bennett and Xie chronic constriction injury model of peripheral painful neuropathy was developed in rats. Under tribromoethanol anesthesia, a single ligature with 100% cotton glace thread was placed around the right sciatic nerve proximal to its trifurcation. The change in the hind paw reflex threshold after mechanical stimulation observed with this modified model was compared to the change in threshold observed in rats subjected to the Bennett and Xie or the Kim and Chung spinal ligation models. The mechanical threshold was measured with an automated electronic von Frey apparatus 0, 2, 7, and 14 days after surgery, and this threshold was compared to that measured in sham rats. All injury models produced significant hyperalgesia in the operated hind limb. The modified model produced mean ± SD thresholds in g (19.98 ± 3.08, 14.98 ± 1.86, and 13.80 ± 1.00 at 2, 7, and 14 days after surgery, respectively) similar to those obtained with the spinal ligation model (20.03 ± 1.99, 13.46 ± 2.55, and 12.46 ± 2.38 at 2, 7, and 14 days after surgery, respectively), but less variable when compared to the Bennett and Xie model (21.20 ± 8.06, 18.61 ± 7.69, and 18.76 ± 6.46 at 2, 7, and 14 days after surgery, respectively). The modified method required less surgical skill than the spinal nerve ligation model.

  8. Accuracy of automatic tube compensation in new-generation mechanical ventilators.

    Science.gov (United States)

    Elsasser, Serge; Guttmann, Josef; Stocker, Reto; Mols, Georg; Priebe, Hans-Joachim; Haberthür, Christoph

    2003-11-01

    To compare performance of flow-adapted compensation of endotracheal tube resistance (automatic tube compensation, ATC) between the original ATC system and ATC systems incorporated in commercially available ventilators. Bench study. University research laboratory. The original ATC system, Dräger Evita 2 prototype, Dräger Evita 4, Puritan-Bennett 840. The four ventilators under investigation were alternatively connected via different sized endotracheal tubes and an artificial trachea to an active lung model. Test conditions consisted of two ventilatory modes (ATC vs. continuous positive airway pressure), three different sized endotracheal tubes (inner diameter 7.0, 8.0, and 9.0 mm), two ventilatory rates (15/min and 30/min), and four levels of positive end-expiratory pressure (0, 5, 10, and 15 cm H2O). Performance of tube compensation was assessed by the amount of tube-related (additional) work of breathing (WOBadd), which was calculated on the basis of pressure gradient across the endotracheal tube. Compared with continuous positive airway pressure, ATC reduced inspiratory WOBadd by 58%, 68%, 50%, and 97% when using the Evita 4, the Evita 2 prototype, the Puritan-Bennett 840, and the original ATC system, respectively. Depending on endotracheal tube diameter and ventilatory pattern, inspiratory WOBadd was 0.12-5.2 J/L with the original ATC system, 1.5-28.9 J/L with the Puritan-Bennett 840, 10.4-21.0 J/L with the Evita 2 prototype, and 10.1-36.1 J/L with the Evita 4 (difference between each ventilator at identical test situations, p ventilator (p <.025). Flow-adapted tube compensation by the original ATC system significantly reduced tube-related inspiratory and expiratory work of breathing. The commercially available ATC modes investigated here may be adequate for inspiratory but probably not for expiratory tube compensation.

  9. Attacking quantum key distribution with single-photon two-qubit quantum logic

    International Nuclear Information System (INIS)

    Shapiro, Jeffrey H.; Wong, Franco N. C.

    2006-01-01

    The Fuchs-Peres-Brandt (FPB) probe realizes the most powerful individual attack on Bennett-Brassard 1984 quantum key distribution (BB84 QKD) by means of a single controlled-NOT (CNOT) gate. This paper describes a complete physical simulation of the FPB-probe attack on polarization-based BB84 QKD using a deterministic CNOT constructed from single-photon two-qubit quantum logic. Adding polarization-preserving quantum nondemolition measurements of photon number to this configuration converts the physical simulation into a true deterministic realization of the FPB attack

  10. Simple security proof of quantum key distribution based on complementarity

    International Nuclear Information System (INIS)

    Koashi, M

    2009-01-01

    We present an approach to the unconditional security of quantum key distribution protocols based on a complementarity argument. The approach is applicable to, but not limited to, every case that has been treated via the argument by Shor and Preskill based on entanglement distillation, with a benefit of decoupling of the error correction from the privacy amplification. It can also treat cases with uncharacterized apparatuses. We derive a secure key rate for the Bennett-Brassard-1984 protocol with an arbitrary source characterized only by a single parameter representing the basis dependence.

  11. WAITING FOR GODOT - ABSURD TEATER

    OpenAIRE

    Thorup, Rasmus; Leitthof, Anneliese; Kock, Felizia; Johansson, Lars; Moustgaard, Mie; Rosenkrands, Tobias; Staalhøj, Sarah; Jeppesen, Freja

    2013-01-01

    This project aims to reassess and discuss the different interpretations of Samuel Beckett’s play Waiting for Godot, made by Martin Esslin and Michael Y. Bennett. The analytical tools needed to enable the reassessment is found in the dimensional courses of Philosophy and Scientific theory (Da: Filosofi og Videnskabsteori) and Text-analysis (Da: Tekst og Tegn) and the discussion is based on Esslin’s The Theatre of The Absurd and Bennett’s Reassessing The Theatre of The Absurd. The conclusion is...

  12. When employees strike back: investigating mediating mechanisms between psychological contract breach and workplace deviance.

    Science.gov (United States)

    Bordia, Prashant; Restubog, Simon Lloyd D; Tang, Robert L

    2008-09-01

    In this article, psychological contract breach, revenge, and workplace deviance are brought together to identify the cognitive, affective, and motivational underpinnings of workplace deviance. On the basis of S. L. Robinson and R. J. Bennett's (1997) model of workplace deviance, the authors proposed that breach (a cognitive appraisal) and violation (an affective response) initiate revenge seeking. Motivated by revenge, employees then engage in workplace deviance. Three studies tested these ideas. All of the studies supported the hypothesized relationships. In addition, self-control was found to be a moderator of the relationship between revenge cognitions and deviant acts; the relationship was weaker for people high in self-control.

  13. Practical Django projects

    CERN Document Server

    Bennett, James

    2009-01-01

    Build a django content management system, blog, and social networking site with James Bennett as he introduces version 1.1 of the popular Django framework. You'll work through the development of each project, implementing and running the applications while learning new features along the way. Web frameworks are playing a major role in the creation of today's most compelling web applications, because they automate many of the tedious tasks, allowing developers to instead focus on providing users with creative and powerful features. Python developers have been particularly fortunate in this area

  14. Response of Earth and Venus ionospheres to corotating solar wind stream of 3 July 1979

    International Nuclear Information System (INIS)

    Taylor, H.A. Jr.

    1985-01-01

    Corotating solar wind streams emanating from stable coronal structures provide an unique opportunity to compare the response of planetary ionospheres to the energy conveyed in the streams. For recurrent solar conditions the 'signal' propagating outward along spiral paths in interplanetary space can at times exhibit rather similar content at quite different downstream locations in the ecliptic plane. Using solar wind measurements from plasma detectors on ISEE-3, Pioneer Venus Orbiter (PVO) and Helios-A, as well as in-situ ion composition measurements from Bennett Ion Mass Spectrometers on the Atmosphere Explorer-E and PVO spacecraft, corotating stream interactions are examined at Earth and Venus. (Auth.)

  15. The Shock and Vibration Digest. Volume 16, Number 2

    Science.gov (United States)

    1984-02-01

    Shelters, Phase II R.S. Tansley, R.D. Bernard , G.J. Cuzner, and C. Wilton Scientific Service, Inc., Redwood City, CA, Rept. No. SSI-8144...compared with available experimental data. 84-396 On the Application of the Mode-Acceleration Method to Structural Engineering Problems R.E. Cornwell ...Barr, R.A J59 Barthe-batsalle, L 417 Bell,W,W 359 Beltzer, A.I 394 Bennett, C.L 388 Benson, R.C 326 Bergan, P.G 342 Bernard , R.D 360 Bert

  16. A comparative analysis of pressure sore treatment modalities in community settings

    Directory of Open Access Journals (Sweden)

    N. Small

    2002-09-01

    Full Text Available The management of pressure sores in community settings, poses a clinical problem which challenges the patient’s tolerance and the clinician’s diligence and ingenuity. Pressure sores can be painful, lead to infection and are associated with considerable morbidity and increased mortality (Patterson & Bennett, 1995:919; Bale, Banks, Hagelstein & Harding, 1998:65. Treatment costs of these wounds are high in terms of resources (Colin 1995:65; Wood, Griffiths & Stoner, 1997:256. However, since there are untold cost in terms of pain and suffering to the patient, it is impossible to calculate the true cost of pressure sores (Dealey, 1994:87.

  17. [History of cranial surgery, cerebral tumor surgery and epilepsy surgery in Mexico].

    Science.gov (United States)

    Chico-Ponce de León, F

    2009-08-01

    The first report of intra-cerebral tumor surgery was provided by Bennett & Goodle, in London, 1884. Worldwide this kind of surgery was performed in France by Chipault, in Italy by Durante, in the United States by Keen and in Deutchland by Krause & Oppenheim. Lavista in Mexico City operated on intra-cerebral tumor in 1891, and the report was printed in 1892. In the same publication, Lavista exhibited the first cases of epilepsy surgery. Since now, it is the first report of this kind of surgery in the Spanish-speaking world.

  18. Entanglement in the XY spin chain

    International Nuclear Information System (INIS)

    Its, A R; Jin, B-Q; Korepin, V E

    2005-01-01

    We consider the entanglement in the ground state of the XY model of an infinite chain. Following Bennett, Bernstein, Popescu and Schumacher, we use the entropy of a sub-system as a measure of entanglement. Vidal, Latorre, Rico and Kitaev have conjectured that the von Neumann entropy of a large block of neighbouring spins approaches a constant as the size of the block increases. We evaluate this limiting entropy as a function of anisotropy and transverse magnetic field. We use the methods based on the integrable Fredholm operators and the Riemann-Hilbert approach. It is shown how the entropy becomes singular at the phase transition points

  19. The effect of aluminium added filter on mean glandular dose using mammography machine in MINT Medical Physics Laboratory

    International Nuclear Information System (INIS)

    Asmaliza Hashim; Wan Hazlinda Ismail; Abd Aziz Mhd Ramli

    2005-01-01

    The effect of various thickness of aluminium added filter on mean glandular dose in mammography is investigated for a standard breast phantom, 4.2 cm Perspex. A mammography machine in Medical Physics Laboratory MINT, Bennett Model DMF-150 is used to provide radiation in various kV range under clinical condition. The mean glandular dose on the phantom were measured based on technique recommended by AAPM protocol (1990) report no 29. The mean glandular dose was found reducing with increasing thickness of added filter. A more detail results of this study is presented in this paper. (Author)

  20. Geotechnical characteristics of siliceous sediments from the Central Indian Basin

    Digital Repository Service at National Institute of Oceanography (India)

    Khadge, N.H.; Valsangkar, A.B.

    . East China, 2001, 10, 113–116. 13. Anon., www.agridata.gov.cn/bjdrc_web/ from/detail.aspx?p_iID=669&p_iModule ID=88&ColumnID=0&Authority=0, 2006, retrieved on 25 April 2007. 14. Flower Network, www.flower.ag365. com, 2007, retrieved on 25 April...., ASCE, 1984, 110, 539–543. 6. American Society for Testing and Mate- rials, Annual Book of ASTM Standards, 04.08 Soil and Rocks (I): D420–D4914, ASTM, Philadelphia, 1995, p. 981. 7. Bennett, R. H. and Lambert, D. N., Mar. Geol., 1971, 11, 201...

  1. Journal of Special Operations Medicine, Volume 4, Edition 4, Fall 2004

    Science.gov (United States)

    2004-01-01

    Donahue My American Journey Colin Powell (GEN Ret) & Joseph E Persico My Secret War Richard S Drury Night Jungle Operations Thomas B Bennett TITLE AUTHOR...USN Command Surgeon I keep General Colin Powell’s leadership primer on my desk top for reference and pull it out regular- ly to remind myself of what’s...point is important – immunization rates rivaled or exceeded those of the United States. Now, as Secretary of State Colin Powell may or may not have said

  2. Film and Motivation -- The ’Why We Fight’ Series.

    Science.gov (United States)

    1991-01-07

    great lengths to avoid offending foreign customers."~~oo As explained by Brock Garland, in W&r---Moyi.ee, duing the "late 30s, the film industry shied... film industry found its worst fears realized."alo "On 1 August 1941, two isolationist senators, Gerald P. Nye of North Dakota and Bennett Champ Clark...defense of the film industry , told the Senate, "If you charge that the motion picture industry as a whole and its leading executives as individuals are

  3. Can the use of the Leggett-Garg inequality enhance security of the BB84 protocol?

    Science.gov (United States)

    Shenoy H., Akshata; Aravinda, S.; Srikanth, R.; Home, Dipankar

    2017-08-01

    Prima facie, there are good reasons to answer in the negative the question posed in the title: the Bennett-Brassard 1984 (BB84) protocol is provably secure subject to the assumption of trusted devices, while the Leggett-Garg-type inequality (LGI) does not seem to be readily adaptable to the device independent (DI) or semi-DI scenario. Nevertheless, interestingly, here we identify a specific device attack, which has been shown to render the standard BB84 protocol completely insecure, but against which our formulated LGI-assisted BB84 protocol (based on an appropriate form of LGI) is secure.

  4. In Search of Authenticity: the ‘Global Popular’ and ‘Quality’ Culture—the Case of The Lord of the Rings Trilogy and Pavement

    Directory of Open Access Journals (Sweden)

    Hilary Radner

    2005-08-01

    Full Text Available Through an examination of three special issues devoted to The Lord of the Rings trilogy in Pavement, a New Zealand magazine, I propose to discuss the way in which the representation of these films suggests the complexities of the intersection between the global and the local within New Zealand culture and its consequences in particular in terms of the marginalisation of an indigenous discourse. I draw upon the work of scholars such as T. Bennett and J. Woolacott to define and examine the “reading formations” mobilized by the LOTR phenomenon within such publications as Pavement, directed towards a local NZ ‘hip’ readership.

  5. Pyroclastic sulphur eruption at Poas Volcano, Costa Rica

    Energy Technology Data Exchange (ETDEWEB)

    Francis, P.W.; Thorpe, R.S.; Brown, G.C.; Glasscock, J.

    1980-01-01

    The recent Voyager missions to Jupiter have highlighted the role of sulphur in volcanic processes on io. Although fumarolic sulphur and SO/sub 2/ gas are almost universal in terrestrial active volcanoes, and rare instances of sulphur lava flows have been reported, sulphur in a pyroclastic form has only been described from Poas Volcano, Costa Rica. Here we amplify the original descriptions by Bennett and Raccichini and describe a recent eruption of pyroclastic sulphur scoria and ejected blocks that are characterised by miniature sulphur stalactites and stalagmites.

  6. One-way entangled-photon autocompensating quantum cryptography

    Science.gov (United States)

    Walton, Zachary D.; Abouraddy, Ayman F.; Sergienko, Alexander V.; Saleh, Bahaa E.; Teich, Malvin C.

    2003-06-01

    A quantum cryptography implementation is presented that uses entanglement to combine one-way operation with an autocompensating feature that has hitherto only been available in implementations that require the signal to make a round trip between the users. Using the concept of advanced waves, it is shown that this proposed implementation is related to the round-trip implementation in the same way that Ekert’s two-particle scheme is related to the original one-particle scheme of Bennett and Brassard. The practical advantages and disadvantages of the proposed implementation are discussed in the context of existing schemes.

  7. One-way entangled-photon autocompensating quantum cryptography

    International Nuclear Information System (INIS)

    Walton, Zachary D.; Abouraddy, Ayman F.; Sergienko, Alexander V.; Saleh, Bahaa E. A.; Teich, Malvin C.

    2003-01-01

    A quantum cryptography implementation is presented that uses entanglement to combine one-way operation with an autocompensating feature that has hitherto only been available in implementations that require the signal to make a round trip between the users. Using the concept of advanced waves, it is shown that this proposed implementation is related to the round-trip implementation in the same way that Ekert's two-particle scheme is related to the original one-particle scheme of Bennett and Brassard. The practical advantages and disadvantages of the proposed implementation are discussed in the context of existing schemes

  8. Chelsea aiaparaad / Lylian Meister

    Index Scriptorium Estoniae

    Meister, Lylian, 1966-

    2008-01-01

    Muljeid Briti Kuningliku Aiandusseltsi korraldatavalt Chelsea Flower Show'lt. Vaadeldud aiad: Lloyds TSB aed (kujundas Trevor Tooth), The Savills Garden (Philip Nixon, pälvis ühe kuldmedalitest), George Harrisoni mälestuseks kujundatud aed "From Life to Life" (abikaasa Olivia ja Yvonne Innes), The Daily Telegraph'i aed (Arabella Lennox-Boyd), Austraalia aed (Jamie Durie), Laurent-Perrier aed (Tom Stuart-Smith, parim showaed), söödav mänguväljak - parim maa-aed, Bennett Garden

  9. Student Loans: Oversight of Servicemembers Interest Rate Cap Could Be Strengthened

    Science.gov (United States)

    2016-11-01

    McDonald (Analyst-in-Charge), Jeffrey G. Miller, and Jill Yost. Additional assistance was provided by Susan Aschoff, James Bennett, Mark Bird...correspondence. To have GAO e-mail you a list of newly posted products, go to http://www.gao.gov and select “E-mail Updates.” The price of each GAO publication...printed in color or black and white. Pricing and ordering information is posted on GAO’s website, http://www.gao.gov/ordering.htm. Place orders by

  10. The Material Politics of Future Airport Cities

    DEFF Research Database (Denmark)

    Jensen, Ole B.

    This paper aims to conceptualize the relationship between materiality, design and the politics of airports. The paper is conceptual and theoretical but will use as its empirical backcloth the ‘Airport City Futures’ (AirCiF) research projects. AirCiF is funded by the Danish Innovation Fund with 10...... understanding of the processing of airport passengers must include a plethora of disciplines. In relation to this there is a need to explore even further into the newer ‘material turn’ literature (Jensen 2016). In particular the connection between actor networks (Latour 2005), vibrant materialities (Bennett...

  11. Field Expedient Armor Modifications to US Armored Vehicles

    Science.gov (United States)

    2006-06-01

    Report on US vs. German Armor,” Exhibit 3, p. 42. 37Ibid., Exhibit 2, p. 38. 38Kenneth W. Estes, Marines Under Armor , The Marine Corps and the...Washington, D.C., 1945), 62. 43Estes, Marines Under Armor , 81. 44Ibid. 45Cameron, “Armor Combat Development 1917-1945,” 17. 46Mayo, The Technical...Marines Under Armor , 53. 72William E. Bennett, Charles W. Fletcher, French G. Lewis, Gerald H. Shea, Rufus J. Cleghorn, James F. Beaver and Thomas

  12. Photometrical analysis of the Neck-Line structure of Comet Bennet 1970II

    International Nuclear Information System (INIS)

    Fulle, M.; Sedmak, G.

    1988-01-01

    The Kimura and Liu (1977) analysis of the motion in space of cometary dust tail grains, which furnished information on the size-dependence of the dust ejection velocity from the inner coma and the size distribution on a millimetric scale, is presently applied to the Neck-Line Structure (NLS) displayed by Comet Bennett 1970II at the begining of May, 1970. Attention is given to two photographs of the comet which have been analyzed by digital image processing in order to extract reliable photometric data; the strong excess of millimetric grains noted is in agreement with the Fulle (1987) results for preperihelion times. 24 references

  13. Transverse two-stream instability in a matched plasma channel

    International Nuclear Information System (INIS)

    Whlttum, D.H.

    1994-01-01

    A relativistic electron beam magnetically self-focused in a plasma is subject to a transverse two stream or 'hose' instability. Linear evolution is described in terms of a tune distribution characterizing the beam, and an effective transverse impedance determined by the beam and the plasma profiles. This model is compared to cloud-in-cell simulations of three-dimensional transport of a beam with a Bennett profile, through a matched plasma channel. In the limit of large skin-depth this instability appears to be the primary limitation on stable beam transport. (author)

  14. Entropy of measurement and erasure: Szilard's membrane model revisited

    Science.gov (United States)

    Leff, Harvey S.; Rex, Andrew F.

    1994-11-01

    It is widely believed that measurement is accompanied by irreversible entropy increase. This conventional wisdom is based in part on Szilard's 1929 study of entropy decrease in a thermodynamic system by intelligent intervention (i.e., a Maxwell's demon) and Brillouin's association of entropy with information. Bennett subsequently argued that information acquisition is not necessarily irreversible, but information erasure must be dissipative (Landauer's principle). Inspired by the ensuing debate, we revisit the membrane model introduced by Szilard and find that it can illustrate and clarify (1) reversible measurement, (2) information storage, (3) decoupling of the memory from the system being measured, and (4) entropy increase associated with memory erasure and resetting.

  15. Intermediate states in quantum cryptography and Bell inequalities

    International Nuclear Information System (INIS)

    Bechmann-Pasquinucci, H.; Gisin, N.

    2003-01-01

    Intermediate states are known from intercept/resend eavesdropping in the Bennett-Brassard 1984 (BB84) quantum cryptographic protocol. But they also play fundamental roles in the optimal eavesdropping strategy on the BB84 protocol and in the CHSH (Clauser-Horne-Shimony-Holt) inequality. We generalize the intermediate states to an arbitrary dimension and consider intercept/resend eavesdropping, optimal eavesdropping on the generalized BB84 protocol and present a generalized Clauser-Horne-Shimony-Holt inequality for two entangled qudits based on these states

  16. Bound entanglement and local realism

    International Nuclear Information System (INIS)

    Kaszlikowski, Dagomir; Zukowski, Marek; Gnacinski, Piotr

    2002-01-01

    We show using a numerical approach, which gives necessary and sufficient conditions for the existence of local realism, that the bound entangled state presented in Bennett et al. [Phys. Rev. Lett. 82, 5385 (1999)] admits a local and realistic description. We also find the lowest possible amount of some appropriate entangled state that must be ad-mixed to the bound entangled state so that the resulting density operator has no local and realistic description and as such can be useful in quantum communication and quantum computation

  17. Finite-key analysis for quantum key distribution with weak coherent pulses based on Bernoulli sampling

    Science.gov (United States)

    Kawakami, Shun; Sasaki, Toshihiko; Koashi, Masato

    2017-07-01

    An essential step in quantum key distribution is the estimation of parameters related to the leaked amount of information, which is usually done by sampling of the communication data. When the data size is finite, the final key rate depends on how the estimation process handles statistical fluctuations. Many of the present security analyses are based on the method with simple random sampling, where hypergeometric distribution or its known bounds are used for the estimation. Here we propose a concise method based on Bernoulli sampling, which is related to binomial distribution. Our method is suitable for the Bennett-Brassard 1984 (BB84) protocol with weak coherent pulses [C. H. Bennett and G. Brassard, Proceedings of the IEEE Conference on Computers, Systems and Signal Processing (IEEE, New York, 1984), Vol. 175], reducing the number of estimated parameters to achieve a higher key generation rate compared to the method with simple random sampling. We also apply the method to prove the security of the differential-quadrature-phase-shift (DQPS) protocol in the finite-key regime. The result indicates that the advantage of the DQPS protocol over the phase-encoding BB84 protocol in terms of the key rate, which was previously confirmed in the asymptotic regime, persists in the finite-key regime.

  18. Turbulent flow over craters on Mars: Vorticity dynamics reveal aeolian excavation mechanism

    Science.gov (United States)

    Anderson, William; Day, Mackenzie

    2017-10-01

    Impact craters are scattered across Mars. These craters exhibit geometric self-similarity over a spectrum of diameters, ranging from tens to thousands of kilometers. The late Noachian-early Hesperian boundary marks a dramatic shift in the role of mid-latitude craters, from depocenter sedimentary basins to aeolian source areas. At present day, many craters contain prominent layered sedimentary mounds with maximum elevations comparable to the rim height. The mounds are remnants of Noachian deposition and are surrounded by a radial moat. Large-eddy simulation has been used to model turbulent flows over synthetic craterlike geometries. Geometric attributes of the craters and the aloft flow have been carefully matched to resemble ambient conditions in the atmospheric boundary layer of Mars. Vorticity dynamics analysis within the crater basin reveals the presence of counterrotating helical vortices, verifying the efficacy of deflationary models put forth recently by Bennett and Bell [K. Bennett and J. Bell, Icarus 264, 331 (2016)], 10.1016/j.icarus.2015.09.041 and Day et al. [M. Day et al., Geophys. Res. Lett. 43, 2473 (2016)], 10.1002/2016GL068011. We show how these helical counterrotating vortices spiral around the outer rim, gradually deflating the moat and carving the mound; excavation occurs faster on the upwind side, explaining the radial eccentricity of the mounds relative to the surrounding crater basin.

  19. In the eyes of the beholder: A non-self-report measure of workplace deviance.

    Science.gov (United States)

    Stewart, Susan M; Bing, Mark N; Davison, H Kristl; Woehr, David J; McIntyre, Michael D

    2009-01-01

    Because employees may be reluctant to admit to performing deviant acts, the authors of this study reexamined the commonly used self-report measure of workplace deviance developed by R. J. Bennett and S. L. Robinson (2000). Specifically, the self-report measure was modified into a non-self-report measure based on multiple other-reported assessments to address methodological concerns with self-reported information regarding deviant workplace behaviors. The authors assessed the psychometric properties of this new measure by first conducting an exploratory factor analysis, which indicated a 3-factor structure (production deviance, property deviance, and personal aggression). Subsequent confirmatory factor analysis on a different sample verified these findings. Taken together, the results suggest that the content and psychometric qualities of this non-self-report measure of workplace deviance closely represent S. L. Robinson and R. J. Bennett's (1995) original typology of workplace deviance. The potential usefulness of this measure in organizational studies is discussed. (PsycINFO Database Record (c) 2009 APA, all rights reserved).

  20. Information-theoretic security proof for quantum-key-distribution protocols

    International Nuclear Information System (INIS)

    Renner, Renato; Gisin, Nicolas; Kraus, Barbara

    2005-01-01

    We present a technique for proving the security of quantum-key-distribution (QKD) protocols. It is based on direct information-theoretic arguments and thus also applies if no equivalent entanglement purification scheme can be found. Using this technique, we investigate a general class of QKD protocols with one-way classical post-processing. We show that, in order to analyze the full security of these protocols, it suffices to consider collective attacks. Indeed, we give new lower and upper bounds on the secret-key rate which only involve entropies of two-qubit density operators and which are thus easy to compute. As an illustration of our results, we analyze the Bennett-Brassard 1984, the six-state, and the Bennett 1992 protocols with one-way error correction and privacy amplification. Surprisingly, the performance of these protocols is increased if one of the parties adds noise to the measurement data before the error correction. In particular, this additional noise makes the protocols more robust against noise in the quantum channel

  1. Crosshole seismic measurements to characterise and monitor the internal condition of embankment dams

    Energy Technology Data Exchange (ETDEWEB)

    Vazinkhoo, S. [Horizon Engineering Inc., North Vancouver, BC (Canada); Gaffran, P. [BC Hydro, Burnaby, BC (Canada)

    2002-12-01

    A sinkhole was discovered at the Bennett Dam in June 1996. The discovery was immediately followed by an investigation consisting 14 geophysical techniques, of which crosshole seismic testing was the most successful. The Bennett Dam Sinkhole Investigation Project resulted in remedial action which involved compaction grouting to repair the defects. Crosshole seismic testing has been carried out annually since 1996 to verify that the integrity of the repaired zone is being maintained. Large amounts of data have been collected since initial testing to augment other acquired data from more conventional geotechnical techniques. Both data sets have provided a unique opportunity to correlate seismic velocities to mechanical soil properties. The condition of the dam can now be readily assessed through the prediction of seismic velocities for a range of soil properties at any point in the dam. The study has resulted in a better understanding of measured velocities with respect to dam behaviour. Results confirm that seismic velocity testing is a useful, non-intrusive tool for monitoring the performance of embankment dams. 13 refs., 2 tabs., 8 figs.

  2. Fair and optimistic quantum contract signing

    Science.gov (United States)

    Paunković, N.; Bouda, J.; Mateus, P.

    2011-12-01

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N-1/2, where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  3. Fair and optimistic quantum contract signing

    Energy Technology Data Exchange (ETDEWEB)

    Paunkovic, N.; Mateus, P. [SQIG - Instituto de Telecomunicacoes, IST, TULisbon, Avenida Rovisco Pais, P-1049-001 Lisbon (Portugal); Bouda, J. [Faculty of Informatics, Masaryk University, Botanicka 68a, CZ-60200 Brno (Czech Republic)

    2011-12-15

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N{sup -1/2}, where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  4. Turbulent flow over craters on Mars: Vorticity dynamics reveal aeolian excavation mechanism.

    Science.gov (United States)

    Anderson, William; Day, Mackenzie

    2017-10-01

    Impact craters are scattered across Mars. These craters exhibit geometric self-similarity over a spectrum of diameters, ranging from tens to thousands of kilometers. The late Noachian-early Hesperian boundary marks a dramatic shift in the role of mid-latitude craters, from depocenter sedimentary basins to aeolian source areas. At present day, many craters contain prominent layered sedimentary mounds with maximum elevations comparable to the rim height. The mounds are remnants of Noachian deposition and are surrounded by a radial moat. Large-eddy simulation has been used to model turbulent flows over synthetic craterlike geometries. Geometric attributes of the craters and the aloft flow have been carefully matched to resemble ambient conditions in the atmospheric boundary layer of Mars. Vorticity dynamics analysis within the crater basin reveals the presence of counterrotating helical vortices, verifying the efficacy of deflationary models put forth recently by Bennett and Bell [K. Bennett and J. Bell, Icarus 264, 331 (2016)]ICRSA50019-103510.1016/j.icarus.2015.09.041 and Day et al. [M. Day et al., Geophys. Res. Lett. 43, 2473 (2016)]GPRLAJ0094-827610.1002/2016GL068011. We show how these helical counterrotating vortices spiral around the outer rim, gradually deflating the moat and carving the mound; excavation occurs faster on the upwind side, explaining the radial eccentricity of the mounds relative to the surrounding crater basin.

  5. Information-theoretic security proof for quantum-key-distribution protocols

    Science.gov (United States)

    Renner, Renato; Gisin, Nicolas; Kraus, Barbara

    2005-07-01

    We present a technique for proving the security of quantum-key-distribution (QKD) protocols. It is based on direct information-theoretic arguments and thus also applies if no equivalent entanglement purification scheme can be found. Using this technique, we investigate a general class of QKD protocols with one-way classical post-processing. We show that, in order to analyze the full security of these protocols, it suffices to consider collective attacks. Indeed, we give new lower and upper bounds on the secret-key rate which only involve entropies of two-qubit density operators and which are thus easy to compute. As an illustration of our results, we analyze the Bennett-Brassard 1984, the six-state, and the Bennett 1992 protocols with one-way error correction and privacy amplification. Surprisingly, the performance of these protocols is increased if one of the parties adds noise to the measurement data before the error correction. In particular, this additional noise makes the protocols more robust against noise in the quantum channel.

  6. Progress in symmetric ICF capsule implosions and wire-array z-pinch source physics for double z-pinch driven hohlraums

    International Nuclear Information System (INIS)

    Bliss, David Emery; Vesey, Roger Alan; Rambo, Patrick K.; Lebedev, Sergey V.; Hanson, David L.; Nash, Thomas J.; Yu, Edmund P.; Matzen, Maurice Keith; Afeyan, Bedros B.; Smith, Ian Craig; Stygar, William A.; Porter, John Larry Jr.; Cuneo, Michael Edward; Bennett, Guy R.; Campbell, Robert B.; Sinars, Daniel Brian; Chittenden, Jeremy Paul; Waisman, Eduardo Mario; Mehlhorn, Thomas Alan

    2005-01-01

    Over the last several years, rapid progress has been made evaluating the double-z-pinch indirect-drive, inertial confinement fusion (ICF) high-yield target concept (Hammer et al 1999 Phys. Plasmas 6 2129). We have demonstrated efficient coupling of radiation from two wire-array-driven primary hohlraums to a secondary hohlraum that is large enough to drive a high yield ICF capsule. The secondary hohlraum is irradiated from two sides by z-pinches to produce low odd-mode radiation asymmetry. This double-pinch source is driven from a single electrical power feed (Cuneo et al 2002 Phys. Rev. Lett. 88 215004) on the 20 MA Z accelerator. The double z-pinch has imploded ICF capsules with even-mode radiation symmetry of 3.1 ± 1.4% and to high capsule radial convergence ratios of 14-21 (Bennett et al 2002 Phys. Rev. Lett. 89 245002; Bennett et al 2003 Phys. Plasmas 10 3717; Vesey et al 2003 Phys. Plasmas 10 1854). Advances in wire-array physics at 20 MA are improving our understanding of z-pinch power scaling with increasing drive current. Techniques for shaping the z-pinch radiation pulse necessary for low adiabat capsule compression have also been demonstrated.

  7. The Hedge and the Labyrinth. A Holistic Vision of Dorothy Hewett´s poetry

    Directory of Open Access Journals (Sweden)

    M.S. Suárez Lafuente

    2012-11-01

    Full Text Available Dorothy Hewett´s poetry follows a complex architecture, a structure which encompasses her personal beliefs and the guiding lights that consciously and unconsciously led her life, while it also draws and deploys core elements from the literary tradition of Western culture. The primary image that pervades her poems is the garden, which is either the place where many of her poems occur or a significant component in others. Hewett´s garden retains several of the characteristics of the primordial garden, such as innocence, abundance and placid solitude, but it also partakes of its Romantic nuances, which, after all, are the same as in Eden but enhanced by feeling and intensity. The garden as literary locus sets the pace of Hewett´s poetry in that it links myth-making with literary tradition, the pillars that sustain the body of her poetic reality. This triangle, myth, tradition and reality, incorporates the main topics that the Australian writer inscribes in her work, and, while each corner retains its thematic substance, it also reflects the other two, thus giving unity to the whole poetic process. As Bruce Bennett pointed out as early as 1995, "place, appropriately conceived, is a meeting ground of mental, emotional and physical states and as such is a suitable focus for the literary imagination" (Bennett: 19.

  8. Fair and optimistic quantum contract signing

    International Nuclear Information System (INIS)

    Paunkovic, N.; Mateus, P.; Bouda, J.

    2011-01-01

    We present a fair and optimistic quantum-contract-signing protocol between two clients that requires no communication with the third trusted party during the exchange phase. We discuss its fairness and show that it is possible to design such a protocol for which the probability of a dishonest client to cheat becomes negligible and scales as N -1/2 , where N is the number of messages exchanged between the clients. Our protocol is not based on the exchange of signed messages: Its fairness is based on the laws of quantum mechanics. Thus, it is abuse free, and the clients do not have to generate new keys for each message during the exchange phase. We discuss a real-life scenario when measurement errors and qubit-state corruption due to noisy channels and imperfect quantum memories occur and argue that for a real, good-enough measurement apparatus, transmission channels, and quantum memories, our protocol would still be fair. Apart from stable quantum memories, the other segments of our protocol could be implemented by today's technology, as they require in essence the same type of apparatus as the one needed for the Bennett-Brassard 1984 (BB84) cryptographic protocol. Finally, we briefly discuss two alternative versions of the protocol, one that uses only two states [based on the Bennett 1992 (B92) protocol] and the other that uses entangled pairs, and show that it is possible to generalize our protocol to an arbitrary number of clients.

  9. Looking a gift horse in the mouth: Evaluation of wide-field asteroid photometric surveys

    Science.gov (United States)

    Harris, Alan W.; Pravec, Petr; Warner, Brian D.

    2012-09-01

    It has recently become possible to do a photometric survey of many asteroids at once, rather than observing single asteroids one (or occasionally a couple) at a time. We evaluate two such surveys. Dermawan et al. (Dermawan et al. [2011]. Publ. Astron. Soc. Jpn. 63, S555-S576) observed one night on the Subaru 8.2 m telescope, and Masiero et al. (Masiero, J., Jedicke, R., Durech, J., Gwen, S., Denneau, L., Larsen, J. [2009]. Icarus 204, 145-171) observed six nights over 2 weeks with the 3.6 m CFHT. Dermawan claimed 83 rotation periods from 127 detected asteroids; Masiero et al. claimed 218 rotation periods from 828 detections. Both teams claim a number of super-fast rotators (P < 2.2 h) among main belt asteroids larger than 250 m diameter, some up to several km in diameter. This would imply that the spin rate distribution of main belt asteroids differs from like-sized NEAs, that there are larger super-fast rotators (monolithic asteroids) in the main belt than among NEAs. Here we evaluate these survey results, applying the same criteria for reliability of results that we apply to all results listed in our Lightcurve Database (Warner, B.D., Harris, A.W., Pravec, P. [2009a]. Icarus 202, 134-146). In doing so, we assigned reliability estimates judged sufficient for inclusion in statistical studies for only 27 out of 83 (33%) periods claimed by Dermawan, and only 87 out of 218 (40%) periods reported by Masiero et al.; none of the super-fast rotators larger than about 250 m diameter claimed by either survey received a reliability rating judged sufficient for analysis. We find no reliable basis for the claim of different rotation properties between main belt and near-Earth asteroids. Our analysis presents a cautionary message for future surveys.

  10. Focus on Quantum Cryptography

    International Nuclear Information System (INIS)

    Kwiat, Paul G.

    2002-01-01

    Full text: In our modern era of telecommunications and the Internet, information has become a valuable commodity. Sometimes it must therefore be protected against theft - in this case, loss of secret information to an eavesdropper. Most of today's transactions are protected using encryption unproven to be secure against a computational attack by a classical computer and, in fact, the standardly used encryption algorithms are provably vulnerable to the mind-boggling parallelism of a quantum computer, should one ever be physically realized. Enter quantum cryptography. Underlying nearly all forms of encryption is the necessity for a truly secret key, a random string of zeros and ones; the basic notion of quantum cryptography is to employ single photon transmissions (or the closest attainable approximation to these) to distribute the random key material, while removing the threat of an undetected eavesdropper. Now, nearly twenty years since the seminal quantum cryptography paper by Bennett and Brassard (Bennett C H and Brassard G 1984 Proc. IEEE Int. Conf. on Computers, Systems, and Signal Processing (Bangalore) (New York: IEEE) pp 175-9), we take a look at several state-of-the-art implementations, and glimpse how future quantum cryptosystems might look. We start with papers from three of the world's leading experimental quantum cryptography efforts: Stucki et al and Bethune and Risk describe working systems for quantum key distribution (QKD) over telecommunications fibres (at 1550 nanometres and 1300 nanometres, respectively). The former's achievement of quantum key exchange over 67 kilometres of optical fibre is a world record, as is the experimental demonstration by Hughes et al of daylight free-space QKD over a 10 km atmospheric range. Next, Luetkenhaus and Jahma explore the possible vulnerabilities of such systems (which employ attenuated laser pulses instead of actual single photon states) to conceivable future eavesdropping technologies. Enzer et al have

  11. Althusserian Theory: From Scientific Truth to Institutional History

    Directory of Open Access Journals (Sweden)

    Philip Goldstein

    1994-01-01

    Full Text Available Scholars have emphasized the scientific and the rationalist features of Althusser's work, but few have noted its post-structuralist aspects, especially its Foucauldian accounts of discourse and power. In the early Pour Marx , Althusser divides ideological practices from objective science and theoretical norms from empirical facts; however, in several later essays Althusser repudiates his earlier faith in theory's normative force as well as his broad distinction between science and ideology. He argues that every discipline establishes its own relationship between its ideological history and its formal, scientific ideals. This argument, together with Althusser's earlier rejection of totalizing approaches, establishes important parallels with Foucault's archaeological studies. The literary theory of Tony Bennett, who develops a Foucauldian critique of traditional and Marxist aesthetics, illuminates the rich implications of these parallels for cultural analyses.

  12. Kochen-Specker theorem as a precondition for secure quantum key distribution

    International Nuclear Information System (INIS)

    Nagata, Koji

    2005-01-01

    We show that (1) the violation of the Ekert 1991 inequality is a sufficient condition for certification of the Kochen-Specker (KS) theorem, and (2) the violation of the Bennett-Brassard-Mermin 1992 (BBM92) inequality is, also, a sufficient condition for certification of the KS theorem. Therefore the success in each quantum key distribution protocol reveals the nonclassical feature of quantum theory, in the sense that the KS realism is violated. Further, it turned out that the Ekert inequality and the BBM inequality are depictured by distillable entanglement witness inequalities. Here, we connect the success in these two key distribution processes into the no-hidden-variables theorem and into witness on distillable entanglement. We also discuss the explicit difference between the KS realism and Bell's local realism in the Hilbert space formalism of quantum theory

  13. Water-Quality and Biological Assessment of the Iowa River and Tributaries Within and Contiguous to the Meskwaki Settlement of the Sac and Fox Tribe of the Mississippi in Iowa, 2006-07

    Science.gov (United States)

    Littin, Gregory R.; McVay, Jason C.

    2009-01-01

    In cooperation with the Sac and Fox Tribe of the Mississippi in Iowa (Meskwaki Nation), the U.S. Geological Survey conducted a 2-year baseline assessment of the chemical and biological quality of streams within the Meskwaki Settlement in central Iowa. The Meskwaki Nation is a federally recognized tribe that wishes to establish water-quality standards to safeguard the integrity of surface waters and aquatic biota within the settlement for the health and welfare of the tribal community. The settlement is drained by the Iowa River and four tributaries (Onion, Cattail, Raven, and Bennett Creeks). Water-quality samples were collected at three sites on the Iowa River, two sites on Onion Creek, and one site each on Cattail, Raven, and Bennett Creeks from April 2006 through July 2007. Biological and habitat assessments were conducted at all three sites on the Iowa River and the downstream-most site on Onion Creek from June through August 2007. Analysis of physical properties, major ions, nutrients, trace compounds, bacteria, and total suspended solids in water, and trace metals and organic compounds in streambed sediment provided information about the effects of anthropogenic (human related) activities on the water quality of settlement streams. Analysis of biological samples collected during the summer of 2007, including fish community, benthic macroinvertebrates, and periphyton samples, as well as physical habitat characteristics, provided information on the effects of water quality on the condition of the aquatic environment. The majority of surface water sampled within the settlement was predominately a calcium bicarbonate type. Nitrates (nitrate plus nitrite as nitrogen) exceeded the U.S. Environmental Protection Agency's (USEPA) primary drinking-water Maximum Contaminant Level of 10 ug/L in 19 of 36 samples from sites on the Iowa River and Raven and Bennett Creeks but not in samples from Onion and Cattail Creeks. None of the samples analyzed for pesticides, trace

  14. Listening to objects: an ecological approach to the decorative arts

    Directory of Open Access Journals (Sweden)

    Erin J. Campbell

    2014-12-01

    Full Text Available To transcend the divisions in art historical research between high art and decorative art, this study proposes an ecological approach. Drawing on research in the social sciences and humanities, and using the early modern domestic interior as a case study, the essay develops the concepts of environment, ecology, meshwork, assemblage, distributive agency, vital materiality, and matter as social performance, which appear in the work of political scientist Jane Bennett, feminist philosopher Karen Barad, sociologist Bruno Latour, anthropologist Tim Ingold, and others. As the study argues, such concepts provide a phenomenological, integrative, and non-hierarchical framework for the study of the decorative arts within the institutions and practices of art history, allowing art historians to analyse the processes through which the human and the material are intertwined.

  15. Mountain home known geothermal resource area: an environmental analysis

    Energy Technology Data Exchange (ETDEWEB)

    Spencer, S.G.; Russell, B.F. (eds.)

    1979-09-01

    The Mountain Home KGRA encompasses an area of 3853 hectares (ha) at the foot of the Mount Bennett Hills in Elmore County, Idaho. The site is associated with an arid climate and high winds that generate an acute dust problem. The KGRA lies adjacent to the northwest-southeast trending fault zone that reflects the northern boundary of the western Snake River Plain graben. Data indicate that a careful analysis of the subsidence potential is needed prior to extensive geothermal development. Surface water resources are confined to several small creeks. Lands are utilized for irrigated farmlands and rangeland for livestock. There are no apparent soil limitations to geothermal development. Sage grouse and mule deer are the major species of concern. The potential of locating significant heritage resources other than the Oregon Trail or the bathhouse debris appears to be relatively slight.

  16. Investigation of Shock-Induced Reactions in a Ni+Al Powder Mixture

    International Nuclear Information System (INIS)

    Eakins, D. E.; Thadhani, N. N.

    2006-01-01

    The shock-compression and reaction response of equi-volumetric micron-scale (∼50-60% dense) spherical nickel and aluminum powder mixtures is investigated in the range of the calculated crush-up pressure (P = 0.4 GPa) and up to 6 GPa. Time resolved stress measurements (using PVDF gauges) coupled with VISAR data is used to determine the shock states. Evidence of reaction or lack thereof is inferred by comparing the measured states with calculated Hugoniot state of reaction products based on the ballotechnic model proposed by Bennett and Horie, (Shock Waves 4:127-136). Post-impact micro-structural analysis of recovered material and comparison of calculated and measured product states is used to establish the criterion for reaction occurring in the shock or post-shock states

  17. Political communication research

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis

    2014-01-01

    The rise of new media and the broader set of social changes they are part of present political communication research with new challenges and new opportunities at a time when many think the field is at an intellectual impasse (e.g., Bennett & Iyengar, 2008). In this article, I argue that parts...... of the field’s problems are rooted in the way in which political communication research has developed since the 1960s. In this period, the field has moved from being interdisciplinary and mixed-methods to being more homogenous and narrowly focused, based primarily on ideas developed in social psychology......, certain strands of political science, and the effects-tradition of mass communication research. This dominant paradigm has contributed much to our understanding of some aspects of political communication. But it is struggling to make sense of many others, including questions concerning people’s experience...

  18. The free energy of locking a ring: Changing a deoxyribonucleoside to a locked nucleic acid.

    Science.gov (United States)

    Xu, You; Villa, Alessandra; Nilsson, Lennart

    2017-06-05

    Locked nucleic acid (LNA), a modified nucleoside which contains a bridging group across the ribose ring, improves the stability of DNA/RNA duplexes significantly, and therefore is of interest in biotechnology and gene therapy applications. In this study, we investigate the free energy change between LNA and DNA nucleosides. The transformation requires the breaking of the bridging group across the ribose ring, a problematic transformation in free energy calculations. To address this, we have developed a 3-step (easy to implement) and a 1-step protocol (more efficient, but more complicated to setup), for single and dual topologies in classical molecular dynamics simulations, using the Bennett Acceptance Ratio method to calculate the free energy. We validate the approach on the solvation free energy difference for the nucleosides thymidine, cytosine, and 5-methyl-cytosine. © 2017 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc. © 2017 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc.

  19. Diabat Interpolation for Polymorph Free-Energy Differences.

    Science.gov (United States)

    Kamat, Kartik; Peters, Baron

    2017-02-02

    Existing methods to compute free-energy differences between polymorphs use harmonic approximations, advanced non-Boltzmann bias sampling techniques, and/or multistage free-energy perturbations. This work demonstrates how Bennett's diabat interpolation method ( J. Comput. Phys. 1976, 22, 245 ) can be combined with energy gaps from lattice-switch Monte Carlo techniques ( Phys. Rev. E 2000, 61, 906 ) to swiftly estimate polymorph free-energy differences. The new method requires only two unbiased molecular dynamics simulations, one for each polymorph. To illustrate the new method, we compute the free-energy difference between face-centered cubic and body-centered cubic polymorphs for a Gaussian core solid. We discuss the justification for parabolic models of the free-energy diabats and similarities to methods that have been used in studies of electron transfer.

  20. Gauge glass

    International Nuclear Information System (INIS)

    Nielsen, H.B.; Brene, N.

    1984-12-01

    The fundamental laws of nature may be truely random, or they may be so complicated that a random description is adequate. With this philosophy we examine various ways in which a lattice gauge theory (at the Planck scale) can be generalized. Without here giving up a regular lattice structure (which we really ought to do) we consider two generalizations. Making the action (quenched) random has the effect that the gauge group tends to break down and some gauge bosons become massive, unless the gauge group has special properties: no noncentral corners in the geometry of conjugacy classes and furthermore a connected center. Making the concept of gauge transformation more general has a symmetry breaking effect for groups with outer automorphisms. A study of SU 5 -breaking in the context of the first breakdown mechanism (D. Bennett, E. Buturovic and H. B. Nielsen) is shortly reviewed. (orig.)

  1. Quantitative Interpretation of Gravity Anomaly Data in Geothermal Field Seulawah Agam, Aceh Besar

    Directory of Open Access Journals (Sweden)

    Aprillino Wangsa

    2018-01-01

    Keywords: Gravity Method, Density, Grav2DC, Geothermal System, Seulawah Agam REFERENSI Bennett, J.D., dkk. 1981. Peta Geologi Lembar Banda Aceh, Sumatera. Bandung: Pusat Penelitian dan Pengembangan Geologi. Hidayat, N dan Basid, A. 2011. Analisis Anomali Gravitasi Sebagai Acuan Dalam Penentuan Struktur Geologi Bawah Permukaan dan Potensi Geothermal, Jurnal Neutrino, 4.1,p-36. Muzakir. 2014. Investigasi Struktur 2D Lapangan Panasbumi Seulawah Agam Berdasarkan Data Pengukuran Magnetotellurik. Skripsi. Universitas Syiah Kuala, Banda Aceh. Saptadji, N. M. 2001. Teknik Panas Bumi. Departemen Teknik Perminyakan Fakultas Ilmu Kebumian dan Teknologi Mineral. Institut Teknologi Bandung: Bandung. Yu, G., He, Z. X., Hu, Z.Z., borbergsdottir, I. M., Strack, K. –M., dan Tulinius, H.2009. Geothermal Exploration Using MT and Gravity Techniques at Szentlorinc Area in Hungary - SEG 2009 International Expoloration and Annuad Meeting. Houston. P-4333

  2. Exoplanets Detection, Formation, Properties, Habitability

    CERN Document Server

    Mason, John W

    2008-01-01

    This edited, multi-author volume will be an invaluable introduction and reference to all key aspects in the field of exoplanet research. The reviews cover: Detection methods and properties of known exoplanets, Detection of extrasolar planets by gravitational microlensing. The formation and evolution of terrestrial planets in protoplanetary and debris disks. The brown dwarf-exoplanet connection. Formation, migration mechanisms and properties of hot Jupiters. Dynamics of multiple exoplanet systems. Doppler exoplanet surveys. Searching for exoplanets in the stellar graveyard. Formation and habitability of extra solar planets in multiple star systems. Exoplanet habitats and the possibilities for life. Moons of exoplanets: habitats for life. Contributing authors: •Rory Barnes •David P. Bennett •Jian Ge •Nader Haghighipour •Patrick Irwin •Hugh Jones •Victoria Meadows •Stanimir Metchev •I. Neill Reid •George Rieke •Caleb Scharf •Steinn Sigurdsson

  3. The participatory agenda

    DEFF Research Database (Denmark)

    Kortbek, Hjørdis Brandrup; Schwartz, Charlotte Præstegaard; Sørensen, Anne Scott

    2016-01-01

    of a “radical democracy” (Mouffe, 2014) and the “radical institution” (Bishop, 2013), respectively, we focus on key terms in the participatory agenda such as “access”, “agency” and “ownership”, and pursue a conceptual intervention in terms of a “post-critical”, “anticipatory” analysis and practice (Rogoff......In this article we address the participatory agenda defined as outreach in Danish national cultural policies, tracing specificities to other Nordic and EU cultural policies as well (Bell & Oakley 2015). The article investigates the discursive link that these policies establish between participation......, democracy and transformation, and argue that a range of paradoxes emerge once the agenda is translated at local cultural policy levels or by different institutions and adopted into daily practice. The thesis is that the agenda is a configuration of the “culture complex” as outlined by Tony Bennett (2013...

  4. Environmental monitors in the Midcourse Space Experiments (MSX)

    Science.gov (United States)

    Uy, O. M.

    1993-01-01

    The Midcourse Space Experiment (MSX) is an SDIO sponsored space based sensor experiment with a full complement of optical sensors. Because of the possible deleterious effect of both molecular and particulate contamination on these sensors, a suite of environmental monitoring instruments are also being flown with the spacecraft. These instruments are the Total Pressure Sensor based on the cold-cathode gauge, a quadrupole mass spectrometer, a Bennett-type ion mass spectrometer, a cryogenic quartz crystal microbalance (QCM), four temperature-controlled QCM's, and a Xenon and Krypton Flash Lamp Experiment. These instruments have been fully space-qualified, are compact and low cost, and are possible candidate sensors for near-term planetary and atmospheric monitoring. The philosophy adopted during design and fabrication, calibration and ground testing, and modeling will be discussed .

  5. Gendering Aboriginalism : a performative gaze on indigenous Australian women

    Directory of Open Access Journals (Sweden)

    Barney, Katelyn

    2010-01-01

    Full Text Available One of the most common Aboriginalist representations of Indigenous Australian people is, as Indigenous female performer Lou Bennett points out, ‘basically a man, out in the desert, black skin, flat nose with a lap-lap on, standing on one leg, resting against a spear’. Her comment raises many issues. In what ways are discourses of Aboriginalism gendered? How does Aboriginalism affect performance and specifically Aboriginal women performers? In exploring these questions, I examine Aboriginalist representations of Aboriginal women performers by white male scholars and the role of women anthropologists in the production of Aboriginalist discourse about Aboriginal women. Drawing on interviews with Indigenous women performers and musical examples of their songs, I explore the impact of Aboriginalism on non-Indigenous expectations of Indigenous Australian women performing in contemporary music contexts, the strategies performers use to work within and against these constructions and my own relationship to Aboriginalism.

  6. Gendering Aboriginalism: A Performative Gaze on Indigenous Australian Women

    Directory of Open Access Journals (Sweden)

    Katelyn Barney

    2010-03-01

    Full Text Available One of the most common Aboriginalist representations of Indigenous Australian people is, as Indigenous female performer Lou Bennett points out, ‘basically a man, out in the desert, black skin, flat nose with a lap-lap on, standing on one leg, resting against a spear’. Her comment raises many issues. In what ways are discourses of Aboriginalism gendered? How does Aboriginalism affect performance and specifically Aboriginal women performers? In exploring these questions, I examine Aboriginalist representations of Aboriginal women performers by white male scholars and the role of women anthropologists in the production of Aboriginalist discourse about Aboriginal women. Drawing on interviews with Indigenous women performers and musical examples of their songs, I explore the impact of Aboriginalism on non-Indigenous expectations of Indigenous Australian women performing in contemporary music contexts, the strategies performers use to work within and against these constructions and my own relationship to Aboriginalism.

  7. Hardy type inequalities on time scales

    CERN Document Server

    Agarwal, Ravi P; Saker, Samir H

    2016-01-01

    The book is devoted to dynamic inequalities of Hardy type and extensions and generalizations via convexity on a time scale T. In particular, the book contains the time scale versions of classical Hardy type inequalities, Hardy and Littlewood type inequalities, Hardy-Knopp type inequalities via convexity, Copson type inequalities, Copson-Beesack type inequalities, Liendeler type inequalities, Levinson type inequalities and Pachpatte type inequalities, Bennett type inequalities, Chan type inequalities, and Hardy type inequalities with two different weight functions. These dynamic inequalities contain the classical continuous and discrete inequalities as special cases when T = R and T = N and can be extended to different types of inequalities on different time scales such as T = hN, h > 0, T = qN for q > 1, etc.In this book the authors followed the history and development of these inequalities. Each section in self-contained and one can see the relationship between the time scale versions of the inequalities and...

  8. Practical long-distance quantum key distribution system using decoy levels

    International Nuclear Information System (INIS)

    Rosenberg, D; Peterson, C G; Harrington, J W; Rice, P R; Dallmann, N; Tyagi, K T; McCabe, K P; Hughes, R J; Nordholt, J E; Nam, S; Baek, B; Hadfield, R H

    2009-01-01

    Quantum key distribution (QKD) has the potential for widespread real-world applications, but no secure long-distance experiment has demonstrated the truly practical operation needed to move QKD from the laboratory to the real world due largely to limitations in synchronization and poor detector performance. Here, we report results obtained using a fully automated, robust QKD system based on the Bennett Brassard 1984 (BB84) protocol with low-noise superconducting nanowire single-photon detectors (SNSPDs) and decoy levels to produce a secret key with unconditional security over a record 140.6 km of optical fibre, an increase of more than a factor of five compared with the previous record for unconditionally secure key generation in a practical QKD system.

  9. Mean glandular dose measurement on various breast phantom using mammography machine in MINT Medical Physics Laboratory

    International Nuclear Information System (INIS)

    Wan Hazlinda Ismail; Asmaliza Hashim; Abd Aziz Mhd Ramli

    2005-01-01

    Until recently, mammography have been the primary means of detecting early breast cancer. Although there is a risk of radiation- induced carcinogenesis associated with the x-ray examination of the female breast, but this risk is small compared to its benefits with modern equipment and technique. Therefore, it is important to determine the dose of the tissue at risk from radiation exposure by measuring the mean glandular dose (MGD). This can help minimize the risk to the patient. This paper describe the MGD measurement done on various types and thickness of breast phantom using a Bennett mammography machine model DMF-150 in the Medical Physics laboratory at the Malaysian Institute for Nuclear Technology Research (MINT). Results of this study are discussed in this paper. (Author)

  10. A new era of fieldwork in political communication research?

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis; David, Karpf; Daniel, Kreiss

    their analytical and empirical contributions—to the exclusion of other ways of investigating social phenomena may have contributed to the problems confronting the field today. In this paper, we sketch out the history of an older tradition of interdisciplinary and mixed-methods research on political communication......Since the publication of W. Lance Bennett and Shanto Iyengar’s 2008 critique of the state of the field, more and more political communication researchers have called for a move beyond the testing and extending of existing theories and towards theory-building aimed at improving our understanding...... in the United States from the 1930s to the 1960s and chart the rise of the currently dominant methodological consensus from the 1970s onwards. We do so to highlight key examples of how this older mixed-methods tradition used field research as an integral part of both empirical work and theory-building during...

  11. Kinetic study of the sausage mode of a resistive instability of a relativistic electron beam

    International Nuclear Information System (INIS)

    Gureev, K.G.; Zolotarev, V.O.; Stolbetsov, S.D.

    1984-01-01

    The nonlinear problem of the growth of the sausage mode of the resistive instability of a relativistic electron beam propagating without collisions through a tenuous plasma is solved. The plasma conductivity is assumed to be high, so that the wave phase velocity is low in comparison with the velocity of light. A kinetic approach is taken to the description of the beam. A numerical solution of the problem shows that this instability occurs in a cold, uniform beam. In the nonlinear stage of the instability the beam goes through states with a hollow structure. Suppression of the instability is found for a beam with a Bennett distribution function. The stabilization results from phase mixing of the beam particles

  12. Sausage mode stability boundaries: enumeration and verification

    International Nuclear Information System (INIS)

    Chambers, F.W.

    1980-01-01

    An axially symmetric sausage mode instability has been observed using particle simulation codes to propagate beams with a high degree of current neutralization. In this report the stability boundaries in terms of the magnitude and location of the return current are delineated for beams with square, Gaussian, and Bennett radial current profiles using the theoretical analysis of others. For the case in which the return current is held fixed as the beam propagates, a detailed comparison is made between the theoretical predictions and the results of the RINGFAST single disk particle simulation code. Agreement between theory and code results is good although the code results do show a slightly larger than predicted unstable region

  13. Digital Student Expertise in the Making

    DEFF Research Database (Denmark)

    Stenbøg, Sofie

    student (e.g. Bennett et. al. 2008, Helsper & Eynon 2009). In this paper I go beyond the idea of digital expertise as something intrinsic. Building on STS’s central notion of performativity (e.g. Law & Singleton 2000) the paper argues that digital expertise should be studied as a temporary achievement......Digital Natives, iGens’ or New Millennium Learners (Prensky 2001, Raphelson 2014, OECD 2008). There are many labels for the generation of young (western) citizens who have grown up with digital, web based technologies as a crucial part of their everyday life. This genera-tion now inhabits schools...... all around the world and their entry has not escaped the attention from teachers, school managers and policy makers. A current trend within education management, in Denmark as well as internationally, is to incorporate the students’ digital skills or ‘expertise’ as a resource in teaching, e.g. through...

  14. Implementing Environmental Management Accounting: Status and Challenges

    DEFF Research Database (Denmark)

    Cost Accounting - and its Interaction with Eco-Efficiency Performance Measurement and Indicators; Stefan Schaltegger and Marcus Wagner. 4. Environmental Accounting Dimensions: Pros and Cons of Trajectory Convergence and Increased Efficiency; Pontus Cerin and Staffan Laestadius. 5. Process and Content......Table of contents Preface. 1. Environmental Management Accounting: Innovation or Managerial Fad?; Pall Rikhardsson, Martin Bennett, Jan Jaap Bouma and Stefan Schaltegger. Section 1 Progress. 2. Challenges for Environmental Management Accounting; Roger L. Burritt 3. Current Trends in Environmental......: Visualizing the Policy Challenges of Environmental Management Accounting; Dick Osborn. Section 2 Exploring EMA implementation issues. 6. Environmental Performance and the Quality of Corporate Environmental Reports: The Role of Environmental Management Accounting; Marcus Wagner. 7. Environmental Risk...

  15. Transverse equilibria in linear collider beam-beam collisions

    International Nuclear Information System (INIS)

    Rosenzweig, J.B.; Chen, Pisin

    1991-01-01

    It has been observed in simulations of the beam-beam interaction in linear colliders that a near equilibrium pinched state of the colliding beams develops when the disruption parameter is large (D much-gt 1). In this state the beam transverse density distributions are peaked at center, with long tails. The authors present here an analytical model of the equilibrium approached by the beams, that of a generalized Bennett pinch which develops through collisionless damping due to the strong nonlinearity of the beam-beam interaction. In order to calculate the equilibrium pinched beam size, an estimation of the rms emittance growth is made which takes into account the partial adiabaticity of the collision. This pinched beam size is used to derive the luminosity enhancement factors whose scaling is in agreement with the simulation results for both D and thermal factor A = σ z /β * large, and explains the previously noted cubic relationship between round and flat beam enhancement factors

  16. Team training in the skies: does crew resource management (CRM) training work?

    Science.gov (United States)

    Salas, E; Burke, C S; Bowers, C A; Wilson, K A

    2001-01-01

    The aviation community has invested great amounts of money and effort into crew resource management (CRM) training. Using D. L. Kirkpatrick's (1976) framework for evaluating training, we reviewed 58 published accounts of CRM training to determine its effectiveness within aviation. Results indicated that CRM training generally produced positive reactions, enhanced learning, and promoted desired behavioral changes. However, we cannot ascertain whether CRM has an effect on an organization's bottom line (i.e., safety). We discuss the state of the literature with regard to evaluation of CRM training programs and, as a result, call for the need to conduct systematic, multilevel evaluation efforts that will show the true effectiveness of CRM training. As many evaluations do not collect data across levels (as suggested by D. L. Kirkpatrick, 1976, and by G. M. Alliger, S. I. Tannenbaum, W. Bennett, Jr., & H. Traver, 1997), the impact of CRM cannot be truly determined; thus more and better evaluations are needed and should be demanded.

  17. Quantum cryptography with finite resources: unconditional security bound for discrete-variable protocols with one-way postprocessing.

    Science.gov (United States)

    Scarani, Valerio; Renner, Renato

    2008-05-23

    We derive a bound for the security of quantum key distribution with finite resources under one-way postprocessing, based on a definition of security that is composable and has an operational meaning. While our proof relies on the assumption of collective attacks, unconditional security follows immediately for standard protocols such as Bennett-Brassard 1984 and six-states protocol. For single-qubit implementations of such protocols, we find that the secret key rate becomes positive when at least N approximately 10(5) signals are exchanged and processed. For any other discrete-variable protocol, unconditional security can be obtained using the exponential de Finetti theorem, but the additional overhead leads to very pessimistic estimates.

  18. Experimental fault-tolerant quantum cryptography in a decoherence-free subspace

    International Nuclear Information System (INIS)

    Zhang Qiang; Pan Jianwei; Yin Juan; Chen Tengyun; Lu Shan; Zhang Jun; Li Xiaoqiang; Yang Tao; Wang Xiangbin

    2006-01-01

    We experimentally implement a fault-tolerant quantum key distribution protocol with two photons in a decoherence-free subspace [Phys. Rev. A 72, 050304(R) (2005)]. It is demonstrated that our protocol can yield a good key rate even with a large bit-flip error rate caused by collective rotation, while the usual realization of the Bennett-Brassard 1984 protocol cannot produce any secure final key given the same channel. Since the experiment is performed in polarization space and does not need the calibration of a reference frame, important applications in free-space quantum communication are expected. Moreover, our method can also be used to robustly transmit an arbitrary two-level quantum state in a type of decoherence-free subspace

  19. Echinobothrium chisholmae n. sp. (Cestoda, Diphyllidea) from the giant shovel-nose ray Rhinobatos typus from Australia, with observations on the ultrastructure of its scolex musculature and peduncular spines.

    Science.gov (United States)

    Jones, M K; Beveridge, I

    2001-09-01

    Echinobothrium chisholmae n. sp. is described from Rhinobatos typus Bennett (Rhinobatidae), collected from Heron Island, Great Barrier Reef, Australia. E. chisholmae differs from all congeners in possessing 11 hooks in each dorsal and ventral group on the rostellum and groups of 3-6 hooklets on either side of the hooks. A single metacestode of E. chisholmae was collected from the decapod crustacean Penaeus longistylus Kubo. Yellow pigmentation of the cephalic peduncle in immature adults is caused by the accumulation of large vesicles in the distal cytoplasm of the tegument. The vesicles probably provide materials for spine formation. Ultrastructural examination of the rostellar musculature revealed that the muscles are stratified (striated-like), consisting of a periodic repetition of sarcomeres separated by perforated Z-like lines that are oblique to the long axes of the myofilaments.

  20. Are LDC marketing units an endangered species?

    International Nuclear Information System (INIS)

    Kerr, J.

    1995-01-01

    Local distribution company (LDC) marketing affiliates are an ''endangered species,'' according to consultant Porter Bennett, president of Bentek Energy Research. This is true, he says, because the gas marketing industry is ''rapidly becoming a large-volume, low-margin business.'' As a result, the need for economies of scale will produce mergers in the gas marketing business until all that's left are six or 12 national companies. But Bruce Henning, A.G.A.'s chief economist, says don't bury LDC marketing units yet. Though he agrees that ''there is increasing pressure on marketers of energy services to reduce their margins to remain competitive,'' he adds that ''it's hard to say how big a company will have to be to capture the economies of scale necessary to be effective.'' These differing views are discussed in terms of size of company, the concerns about retail markets, and the trends towards mergers

  1. Ordinary tales from endoscopic odysseys: fiction, ethics, and the gastroenterological journey.

    Science.gov (United States)

    Meulenberg, Frans; de Beaufort, Inez D

    2014-04-01

    Fiction (i.e. novels, short stories, and movies) provides an opportunity for imaginative moral reflection and can serve as a basis for moral argument. Narratives play a role in moral reasoning because they are exemplars as well as tests. Those who care for sick people, should be interested in patient's and literary stories. Exploring the representation of gastroenterological ailments in fiction gives insight in the experience of undergoing colonoscopy, farting, pain, the borders of intimacy, hygiene and the lack of it, taboos and the doctor-patient-relationship. Included authors are, among others: Michel Faber, Alan Bennett, Charles Bukowski, Charlotte Roche and James Joyce. Several movies are discussed as well. Though in general gastroenterological problems don't seem often at foreground in fiction, in some cases they are represented in a more symbolic way, and touch upon some fundamental aspects of the human condition. Copyright © 2014 Elsevier Ltd. All rights reserved.

  2. An Exonic Insertion Encodes an Alanine Stretch in Porcine Synapsin I

    DEFF Research Database (Denmark)

    Hedegaard, Claus; Bendixen, Emøke; Jensen, Poul Henning

    2009-01-01

    regulatory roles in linking the vesicles to the cytoskeleton, supported by the identified abilities of the syns to bind both phospholipids (Schiebler et al. 1986 ) and tubulin/actin (Baines and Bennett 1986 ; Bähler and Greengard 1987 ). Originating from an alternatively spliced common transcript, syn Ia...... experiments, a nonsense mutation leading to a truncated form of syn I, without domain D and E/F, was identified in a family with frequent cases of X-linked epilepsy (Garcia et al. 2004 ). This study reports molecular cloning and characterization of the coding sequence of the porcine ortholog of syn I......, including identification and verification at the protein level of an alanine-encoding insert...

  3. RPMDrate: Bimolecular chemical reaction rates from ring polymer molecular dynamics

    KAUST Repository

    Suleimanov, Yu.V.

    2013-03-01

    We present RPMDrate, a computer program for the calculation of gas phase bimolecular reaction rate coefficients using the ring polymer molecular dynamics (RPMD) method. The RPMD rate coefficient is calculated using the Bennett-Chandler method as a product of a static (centroid density quantum transition state theory (QTST) rate) and a dynamic (ring polymer transmission coefficient) factor. The computational procedure is general and can be used to treat bimolecular polyatomic reactions of any complexity in their full dimensionality. The program has been tested for the H+H2, H+CH 4, OH+CH4 and H+C2H6 reactions. © 2012 Elsevier B.V. All rights reserved.

  4. Political Dysmetropsia – Activist tactics in the (under)formatted world of social media

    DEFF Research Database (Denmark)

    Carlsen, Hjalmar Alexander Bang; Birkbak, Andreas; Madsen, Anders Koed

    in the Arctic. Should the small but home grown salad be evaluated in relation to the precarious situation of distant polar bears? Or is the familiar relationship to the brother and his garden a reminder that there are limits to the range of issues we can care for? Such challenges can be referred...... contribution is to develop a conceptual framework for analyzing how activists handle this challenge. Thévenot proposes three different regimes of engagement ranging from the most familiar to the most public. Each of these regimes come with their specific engaged reality and specific engaged good, which means...... regimes of engagement. A central focus lies on the appropriate formatting of both the communicated object and its environment. This points towards an analysis of the role of technical infrastructures like social media in activist engagement. Bennett and Segerberg (2012:745) take a step in this direction...

  5. George Mikenberg honoured by the Sharing Knowledge Foundation

    CERN Multimedia

    CERN Bulletin

    2016-01-01

    The Sharing Knowledge Foundation Prize was presented to the ATLAS physicist at a ceremony on 18 March.   ATLAS physicist George Mikenberg receives the Sharing Knowledge Foundation Prize. From left to right: Peter Jenni, former ATLAS Spokesperson, Rolf Heuer, former CERN Director-General, Frédérick Bordry, CERN Director for Accelerators and Technology, George Mikenberg, Patrick Fassnacht, CERN International Relations sector, Eliane Jacot-Des-Combes Mikenberg, Herwig Schopper, former CERN Director-General, Constantin Lanaras, treasurer of the Sharing Knowledge Foundation, Robert Klapisch, President of the Sharing Knowledge Foundation, Federico Saldana, logistical support, Catherine Cesarsky, Vice-President of the CERN Council, Eliezer Rabinovici, Vice-President of the CERN Council and of SESAME. (Image: Sophia Bennett/CERN) The Sharing Knowledge Foundation awarded its 2016 prize to George Mikenberg, a member of the LHC's ATLAS experiment who has been...

  6. The equations of motion of a secularly precessing elliptical orbit

    Science.gov (United States)

    Casotto, S.; Bardella, M.

    2013-01-01

    The equations of motion of a secularly precessing ellipse are developed using time as the independent variable. The equations are useful when integrating numerically the perturbations about a reference trajectory which is subject to secular perturbations in the node, the argument of pericentre and the mean motion. Usually this is done in connection with Encke's method to ensure minimal rectification frequency. Similar equations are already available in the literature, but they are either given based on the true anomaly as the independent variable or in mixed mode with respect to time through the use of a supporting equation to track the anomaly. The equations developed here form a complete and independent set of six equations in time. Reformulations both of Escobal's and Kyner and Bennett's equations are also provided which lead to a more concise form.

  7. Extended analysis of the Trojan-horse attack in quantum key distribution

    Science.gov (United States)

    Vinay, Scott E.; Kok, Pieter

    2018-04-01

    The discrete-variable quantum key distribution protocols based on the 1984 protocol of Bennett and Brassard (BB84) are known to be secure against an eavesdropper, Eve, intercepting the flying qubits and performing any quantum operation on them. However, these protocols may still be vulnerable to side-channel attacks. We investigate the Trojan-horse side-channel attack where Eve sends her own state into Alice's apparatus and measures the reflected state to estimate the key. We prove that the separable coherent state is optimal for Eve among the class of multimode Gaussian attack states, even in the presence of thermal noise. We then provide a bound on the secret key rate in the case where Eve may use any separable state.

  8. Security of BB84 with weak randomness and imperfect qubit encoding

    Science.gov (United States)

    Zhao, Liang-Yuan; Yin, Zhen-Qiang; Li, Hong-Wei; Chen, Wei; Fang, Xi; Han, Zheng-Fu; Huang, Wei

    2018-03-01

    The main threats for the well-known Bennett-Brassard 1984 (BB84) practical quantum key distribution (QKD) systems are that its encoding is inaccurate and measurement device may be vulnerable to particular attacks. Thus, a general physical model or security proof to tackle these loopholes simultaneously and quantitatively is highly desired. Here we give a framework on the security of BB84 when imperfect qubit encoding and vulnerability of measurement device are both considered. In our analysis, the potential attacks to measurement device are generalized by the recently proposed weak randomness model which assumes the input random numbers are partially biased depending on a hidden variable planted by an eavesdropper. And the inevitable encoding inaccuracy is also introduced here. From a fundamental view, our work reveals the potential information leakage due to encoding inaccuracy and weak randomness input. For applications, our result can be viewed as a useful tool to quantitatively evaluate the security of a practical QKD system.

  9. The blocking technique, weighted mean operators and Hardy’s inequality

    CERN Document Server

    Grosse-Erdmann, Karl-Goswin

    1998-01-01

    This book presents the first comprehensive treatment of the blocking technique which consists in transforming norms in section form into norms in block form, and vice versa. Such norms appear throughout analysis. The blocking technique is a powerful, yet elementary, tool whose usefulnes is demonstrated in the book. In particular, it is shown to lead to the solution of three recent problems of Bennett concerning the inequalities of Hardy and Copson. The book is addressed to researchers and graduate students. An interesting feature is that it contains a dictionary of transformations between section and block norms and will thus be useful to researchers as a reference text. The book requires no knowledge beyond an introductory course in functional analysis.

  10. Mechanical ventilators availability survey in Thai ICUs (ICU-RESOURCE I Study).

    Science.gov (United States)

    Chittawatanarat, Kaweesak; Bunburaphong, Thananchai; Champunot, Ratapum

    2014-01-01

    Mechanical ventilators (MV) have been progressing rapidly. New ventilator modes and supportive equipments have been developed. However; the MV status in Thai ICUs was not available. The objective of this report was to describe the MV supply and availability in Thai ICUs and review some important characteristics regarding of the availability of MV MATERIAL AND METHOD: The ICU RESOURCE I study (Mechanical ventilator part) database was used in the present study. Hospital types, MV brands and models were recorded. Statistically significant differences between and among groups were defined as p-value ventilators were also a high proportion of the MVs in Thai ICUs. Bennette and Hamilton were the most highly available MVin this survey. Advanced MV models were more available in academic ICUs (Thai Clinical Trial Registry: TCTR-201200005).

  11. Security bound of two-basis quantum-key-distribution protocols using qudits

    International Nuclear Information System (INIS)

    Nikolopoulos, Georgios M.; Alber, Gernot

    2005-01-01

    We investigate the security bounds of quantum-cryptographic protocols using d-level systems. In particular, we focus on schemes that use two mutually unbiased bases, thus extending the Bennett-Brassard 1984 quantum-key-distribution scheme to higher dimensions. Under the assumption of general coherent attacks, we derive an analytic expression for the ultimate upper security bound of such quantum-cryptography schemes. This bound is well below the predictions of optimal cloning machines. The possibility of extraction of a secret key beyond entanglement distillation is discussed. In the case of qutrits we argue that any eavesdropping strategy is equivalent to a symmetric one. For higher dimensions such an equivalence is generally no longer valid

  12. Hot spots in Ar and Ne gas puff Z-pinch

    International Nuclear Information System (INIS)

    Krejci, A.; Krousky, E.; Renner, O.

    1989-02-01

    The hot spots in Ar and Ne pinch plasma were investigated. Two pinhole cameras with entrance diameter 13 to 250 μm and flat crystal spectrographs with Si and KAP crystals were used for spatially and spectrally resolved soft X-ray diagnostics. The diameters of Ar (25 to 30 μm) and Ne (40 μm) hot spots were found. From X-ray spectrum of Ar spots the following plasma parameters were determined: T e =1.0 to 1.1 keV and n e =(1.8 to 4.0)x10 27 m -3 . The validity of the Bennett equilibrium for unstable hot spots is discussed. (author). 1 fig., 11 refs

  13. Fast and secure key distribution using mesoscopic coherent states of light

    International Nuclear Information System (INIS)

    Barbosa, Geraldo A.

    2003-01-01

    This work shows how two parties A and B can securely share unlimited sequences of random bits at optical speeds. A and B possess true-random physical sources and exchange random bits by using a random sequence received to cipher the following one to be sent. A starting shared secret key is used and the method can be described as a one-time-pad unlimited extender. It is demonstrated that the minimum probability of error in signal determination by the eavesdropper can be set arbitrarily close to the pure guessing level. Being based on the M-ry encryption protocol this method also allows for optical amplification without security degradation, offering practical advantages over the Bennett-Brassard 1984 protocol for key distribution

  14. Electron beam dynamics in Pasotron microwave sources

    International Nuclear Information System (INIS)

    Carmel, Y.; Shkvarunets, A.; Nusinovich, G.S.; Rodgers, J.; Bliokh, Yu.P.; Goebel, D.M.

    2003-01-01

    The Pasotron is a high efficiency (∼50%), plasma-assisted microwave generator in which the beam electrons exhibit two-dimensional motion in the slow wave structure. The electron beam propagates in the ion-focusing regime (Bennett pinch regime) because there is no applied magnetic field. Since initially only the neutral gas is present in the vacuum system and the ions in the neutralizing plasma channel are produced only due to the beam impact ionization, the beam dynamics in Pasotrons is inherently a nonstationary process, and important for efficient operation. The present paper contains results of experimental studies of stationary and nonstationary effects in the beam dynamics in Pasotrons and their theoretical interpretation

  15. An objective assessment of safety to drive in an upper limb cast.

    Science.gov (United States)

    Stevenson, H L; Peterson, N; Talbot, C; Dalal, S; Watts, A C; Trail, I A

    2013-03-01

    Patients managed with upper limb cast immobilization often seek advice about driving. There is very little published data to assist in decision making, and advice given varies between healthcare professionals. There are no specific guidelines available from the UK Drivers and Vehicles Licensing Agency, police, or insurance companies. Evidence-based guidelines would enable clinicians to standardize the advice given to patients. Six individuals (three male, three female; mean age 36 years, range 27-43 years) were assessed by a mobility occupational therapist and driving standards agency examiner while completing a formal driving test in six different types of upper limb casts (above-elbow, below-elbow neutral, and below-elbow cast incorporating the thumb [Bennett's cast]) on both left and right sides. Of the 36 tests, participants passed 31 tests, suggesting that most people were able to safely drive with upper limb cast immobilization. However, driving in a left above-elbow cast was considered unsafe.

  16. Hose instability at arbitrary conductivity

    International Nuclear Information System (INIS)

    Lee, E.P.

    1975-01-01

    A model is developed for studying the dynamics of a low-current, highly relativistic beam propagating in a conducting medium. Here the conductivity (sigma) is of arbitrary magnitude, the usual assumption being that the scale beam radius (a) is small compared with the magnetic skin length (4 π sigma a 2 /c). A dispersion formula for the hose instability is derived for the case of uniform sigma and Bennett current profile J/sub b/(r) varies as (a 2 + r 2 ) -2 . The peak growth rate at fixed laboratory position, maximized with respect to sigma as well as driver frequency, is approximately 0.465 c/a. This growth rate is realized when 4 π sigma a/c = √12/5. (U.S.)

  17. RPMDrate: Bimolecular chemical reaction rates from ring polymer molecular dynamics

    KAUST Repository

    Suleimanov, Yu.V.; Allen, J.W.; Green, W.H.

    2013-01-01

    We present RPMDrate, a computer program for the calculation of gas phase bimolecular reaction rate coefficients using the ring polymer molecular dynamics (RPMD) method. The RPMD rate coefficient is calculated using the Bennett-Chandler method as a product of a static (centroid density quantum transition state theory (QTST) rate) and a dynamic (ring polymer transmission coefficient) factor. The computational procedure is general and can be used to treat bimolecular polyatomic reactions of any complexity in their full dimensionality. The program has been tested for the H+H2, H+CH 4, OH+CH4 and H+C2H6 reactions. © 2012 Elsevier B.V. All rights reserved.

  18. Electronic structure and magnetic ordering of the unconventional antiferromagnet Yb3Pt4

    KAUST Repository

    Schwingenschlögl, Udo

    2009-12-01

    Applying density functional theory within the generalized gradient approximation, we investigate the electronic and magnetic properties of the intermetallic rare-earth system Yb3Pt4. This material recently has been put forward as host for quantum criticality, while details of the magnetic ordering could not be established (Bennett N. C.et al., J. Magn. & Magn. Mater., 321 (2009) 2021). In this context, we investigate the effect of spin-orbit coupling and compare various spin patterns from the energetic point of view, which enables us to determine the electronic ground state of Yb3Pt4. The assumption of an elementary superexchange mechanism yields a magnetic-coupling constant in good agreement with the experimental ordering temperature. Copyright © 2009 EPLA.

  19. Electronic structure and magnetic ordering of the unconventional antiferromagnet Yb3Pt4

    KAUST Repository

    Schwingenschlö gl, Udo; Gó mez, Javier Alexandra M; Grau-Crespo, Ricardo

    2009-01-01

    Applying density functional theory within the generalized gradient approximation, we investigate the electronic and magnetic properties of the intermetallic rare-earth system Yb3Pt4. This material recently has been put forward as host for quantum criticality, while details of the magnetic ordering could not be established (Bennett N. C.et al., J. Magn. & Magn. Mater., 321 (2009) 2021). In this context, we investigate the effect of spin-orbit coupling and compare various spin patterns from the energetic point of view, which enables us to determine the electronic ground state of Yb3Pt4. The assumption of an elementary superexchange mechanism yields a magnetic-coupling constant in good agreement with the experimental ordering temperature. Copyright © 2009 EPLA.

  20. Mycotoxins in Meat and Processed Meat Products

    Science.gov (United States)

    Bailly, Jean-Denis; Guerre, Philippe

    Mycotoxins are toxic substances elaborated by fungi. They constitute a heterogeneous group of secondary metabolites with diverse potent pharmacological and toxic effects in humans and animals. More than 300 secondary metabolites have been identified but around 30 are of real concern for human and animal health (for review, see Bennett & Klich, 2003). These molecules are produced during mould development on plants in the field or during storage period. They can be found as natural contaminants of many vegetal foods or feeds, mainly cereals, but also fruits, nuts, grains, forage as well as compound foods intended for human or animal consumption. Most important mycotoxins are produced by moulds belonging to Aspergillus, Penicillium and Fusarium genus (Bhatnagar, Yu, & Ehrlich, 2002; Conkova, Laciakova, Kovac, & Seidel, 2003; Pitt, 2002). These molecules are usually classified depending on the fungal species that produce them (Table 4.1)

  1. Dimensionality of civic participation in a convergent media environment

    DEFF Research Database (Denmark)

    Ohme, Jakob; Albæk, Erik; de Vreese, Claes Holger

    of online and offline, active and passive as well as traditional and unconventional forms of participation. Subsequently, the influence of exposure to political information on social media on these different types of participation was tested. Considering a change in citizenship (Bennett, 2008), especially......With the digitalization of information, subsequently leading to a fragmentation of audiences (Benett & Iyengar, 2008) and a change in the prevailing media logic (Schulz, 2014), a convergent media environment has developed. Nowadays, social media offer a platform for converging streams...... of information, altering the media diet for a growing share of the population. In addition, social networks like Facebook or Twitter offer emerging ways of participation, mostly with less effort than traditional forms. Yet, the role social media play in the political media diet was not fully assed by prior...

  2. Thermodynamic free energy methods to investigate shape transitions in bilayer membranes.

    Science.gov (United States)

    Ramakrishnan, N; Tourdot, Richard W; Radhakrishnan, Ravi

    2016-06-01

    The conformational free energy landscape of a system is a fundamental thermodynamic quantity of importance particularly in the study of soft matter and biological systems, in which the entropic contributions play a dominant role. While computational methods to delineate the free energy landscape are routinely used to analyze the relative stability of conformational states, to determine phase boundaries, and to compute ligand-receptor binding energies its use in problems involving the cell membrane is limited. Here, we present an overview of four different free energy methods to study morphological transitions in bilayer membranes, induced either by the action of curvature remodeling proteins or due to the application of external forces. Using a triangulated surface as a model for the cell membrane and using the framework of dynamical triangulation Monte Carlo, we have focused on the methods of Widom insertion, thermodynamic integration, Bennett acceptance scheme, and umbrella sampling and weighted histogram analysis. We have demonstrated how these methods can be employed in a variety of problems involving the cell membrane. Specifically, we have shown that the chemical potential, computed using Widom insertion, and the relative free energies, computed using thermodynamic integration and Bennett acceptance method, are excellent measures to study the transition from curvature sensing to curvature inducing behavior of membrane associated proteins. The umbrella sampling and WHAM analysis has been used to study the thermodynamics of tether formation in cell membranes and the quantitative predictions of the computational model are in excellent agreement with experimental measurements. Furthermore, we also present a method based on WHAM and thermodynamic integration to handle problems related to end-point-catastrophe that are common in most free energy methods.

  3. Uma análise da correlação entre o EVA® e o MVA® no contexto das empresas brasileiras de capital aberto Correlation between Economic Value Added and Market Value Added for publicly owned Brazilian companies

    Directory of Open Access Journals (Sweden)

    José Odálio dos Santos

    2005-03-01

    Full Text Available Este artigo trata do tema da criação de valor, da forma como é medida pelo EVA® (Valor Econômico Adicionado e pelo MVA® (Valor de Mercado Agregado, duas metodologias desenvolvidas no final dos anos 80 pela empresa americana de consultoria Stern Stewart & Co. O EVA® é definido como a diferença entre o lucro operacional líquido depois de impostos e o custo do capital investido na empresa, enquanto o MVA® é determinado pela diferença entre o valor de mercado da empresa e o capital total nela investido. Um estudo realizado por G. Bennett Stewart III, que idealizou essas metodologias juntamente com o seu sócio Joel M. Stern, encontrou uma forte correlação entre o EVA® e o MVA®. Visando averiguar se tal resultado se aplica também ao caso das empresas brasileiras, os autores deste artigo realizaram uma pesquisa semelhante, baseada numa amostra formada por empresas de capital aberto cujas ações foram negociadas na Bovespa (Bolsa de Valores de São Paulo durante o período de 1996 a 2001.This article deals with value creation as measured by Economic Value Added (EVA® and Market Value (MVA® which are methods developed by an American consultant, Stern Stewart & Co, in the late l980's. Economic Value Added is defined as the difference between net operating profit after taxes and the cost of capital invested in a company, while Market Value Added is the difference between market value and the total capital invested in a company. G. Bennett Stewart III, who conceived this approach together with his partner Joel M. Stern, found a strong correlation between Economic Value Added and Market Value Added. Our research investigated whether this also applies to a sample of publicly owned Brazilian companies traded on the São Paulo Stock Exchange between 1996 and 2001.

  4. Feo-hifomicose subcutânea por Exophiala jeanselmei: registro de três casos em transplantados renais Subcutaneous phaeohyhomycosis caused by Exophiala jeanselmei: report of three cases in kidney transplant patients

    Directory of Open Access Journals (Sweden)

    Emil Sabbaga

    1994-04-01

    Full Text Available São registrados três casos de feo-hifornicose subcutânea em transplantados renais provocados pela Exophiala jeanselmei (Langeron McGinnis et Padhye 1977, fungo demácio capaz, também, de produzir raramente eumicetoma de grãos pretos. Este fungo, segundo KWON-CHUNG & BENNETT, 1992(27 é antigenicamente muito heterogêneo, sendo identificados até o presente momento três sorotipos com subgrupos dentro de cada um deles. A feo-hifomicose subcutânea vem se tornando cada vez mais freqüente em transplantados renais, submetidos a terapêutica imunodepressora. Como a Exophiala jeanselmei já foi isolada do meio ambiente, torna-se dificil explicar a patogenia desses casos por um despertar ou reativação de processos quiescentes. Os Autores fizeram ampla revisão da literatura, registrando principalmente os casos de feo-hifomicose publicados no Brasil. Sugerem também, eventual ação fungistática da ciclosporina A sobre a Exophiala jeanselmei.We report three cases of subcutaneous phaeohy-phomycosis due to Exophiala jeanselmei (Langeron McGinnis et Padhye 1977, in kidney transplant patients. Exophiala jeanselmei is a dematious fungus having also ability to rarely procedure eumycetoma (black grains. According to KWON-CHUNG & BENNETT (199227 such fungus is antigenically very heterogeneous, since so far three serotypes have been identified; each serotype including subgroups. Subcutaneous phaeohyphomycosis is becoming more and more frequent in kidney transplant patients submitted to an immunosupressive treatment. As Exophiala jeanselmei has already been isolated from the environment it becomes difficult to explain the pathogenicity of these cases by a reactivation of quiescent processes. The authors suggest an occasional fungistatic action of cyclosporine A upon Exophiala jeanselmei. A review of the literature was carried out with the report mainly of cases published in Brazil.

  5. Triplet transitions of neutral CO in the spectra of comets and the abundance of CO2 or molecules containing the CO group in comets

    International Nuclear Information System (INIS)

    Biermann, L.

    1976-03-01

    The high-dispersion spectra of comet Mrkos (1957 V) taken at Mt. Palomar by J. L. Greenstein and remeasured by A. Woszczyk contain many unidentified weak lines. The possibility that some of these lines belong to transitions between triplet levels of neutral CO molecules is investigated. Their presence would suggest excitation related to the dissociative recombination of a parent containing the CO group, which is first ionized by solar uv. Of 31 CO lines (of the Asundi and Triplet systems), 14 are masked by known or by questionably identified lines as statistically expected. Of the remaining 17, 13 coincide within a few tenths of an Angstrom with an unidentified line and 4 do not. These results are contrary to statistical expectations. (Some members of the third positive system of CO, which might be present, have not been included in the figures.) Although these figures strongly favor the identification proposed, the numbers are not large enough to support entirely the argument of a small statistical probability (0.2 percent) of the observed state. Also, the rotational structure of the CO bands for the triplet systems needs further investigation. C. F. Lillie's observations of comet Bennett (1970 II) between 1200 and 1800 A, especially of the fourth positive system of CO, seem to favor a cometary atmosphere characterized by a large relative abundance of CO 2 and/or molecules containing the CO group. A model outlined for comet Bennett at 0.8 a.u. seems to be approximately consistent with observations. The chemical aspects, however, especially need further consideration. New observations, particularly of the Cameron bands of CO, are needed to settle the questions raised

  6. Factors Affecting the Recreational Fishery in Moses Lake, Washington, 2000-2001 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Burgess, Dave

    2003-02-04

    The Moses Lake Project (project No. 199502800) was first funded by Bonneville Power Administration during the FY 99. Work commenced and proceeded through September 2001 when questions arouse on the Scope of Work. Due to funding issues at the beginning of FY 2001 we were unable to secure monies to continue with our proposed scope of work. Consequently, the Moses Lake Project was reduced to one full-time employee. An extension of fifty thousand dollars was granted in which the project with one remaining member by October 2001 continued to operate. By December 2001 the NWPPC granted an additional 20K in spending to secure an advisor that could assist in providing a proposal that the ISRP would find amenable. By Jan 2002, the Moses Lake staff put Dr. David Bennett, from the University of Idaho on payroll. With the guidance of Dr. Bennett the Moses Lake project staff was successful in turning in a new version of the proposal and ultimately received funding by July of 2002. Consequently, the lack of manpower and time spent revising and resubmitting said proposal hampered progress. Consequently, this report covers work conducted on the original Scope of Work (SOW) to July 2002 and then follows the new and accepted SOW from July 2002 through September 2002. Work on the tasks within the newest proposal began prior to official acceptance so as not to loose the window of opportunity to collect data during the summer field season. As of July 2000 we moved forward and began the appropriate tasks outlined in our scope of work. Therefore, portions of the FY 2001 annual report address tasks outlined in the original (appendix 1, original FY2000 SOW) and newest scope(s) of work (Appendix 2, new FY 2000 SOW).

  7. Aquatic macroinvertebrates and water quality of Sandia Canyon, Los Alamos National Laboratory, December 1992--October 1993. Status report

    International Nuclear Information System (INIS)

    Cross, S.

    1994-09-01

    In the summer of 1990, an accidental spill from the TA-3 Power Plant Environment Tank released more than 3,785 liters of sulfuric acid into upper Sandia Canyon. The Biological Resource Evaluation Team (BRET) of EM-8 at Los Alamos National Laboratory (LANL) has collected aquatic samples from the stream within Sandia Canyon since then. These field studies gather water quality measurements and collect macroinvertebrates from permanent sampling sites. An earlier report by Bennett (1994) discusses previous BRET aquatic studies in Sandia Canyon. This report updates and expands Bennett's initial findings. During 1993, BRET collected water quality data and aquatic macroinvertebrates at five permanent stations within the canyon. The substrates of the upper three stations are largely sands and silts while the substrates of the two lower stations are largely rock and cobbles. The two upstream stations are located near outfalls that discharge industrial and sanitary waste effluent. The third station is within a natural cattail marsh, approximately 0.4 km (0.25 mi) downstream from Stations SC1 and SC2. Water quality parameters are slightly different at these first three stations from those expected of natural streams, suggesting slightly degraded water quality. Correspondingly, the macroinvertebrate communities at these stations are characterized by low diversities and poorly-developed community structures. The two downstream stations appear to be in a zone of recovery, where water quality parameters more closely resemble those found in natural streams of the area. Macroinvertebrate diversity increases and community structure becomes more complex at the two lower stations, which are further indications of improved water quality downstream

  8. Tidal volume delivery from ICU ventilators at BTPS conditions: a bench study.

    Science.gov (United States)

    Duchateau, Paul; Guérin, Claude

    2013-04-01

    Even though it is not a common practice, an external filter to the expiratory limb of the breathing circuit may protect the expiratory valve from water saturation in case of nebulization, or from the environment in case of lung infection with multi-drug-resistant micro-organisms or H1N1 influenza. We added an external filter to the expiratory limb and measured tidal volume (VT) from 6 ICU ventilators: 2 with built-in expiratory filter (Avea, Puritan Bennett 840), and 4 without (Engström Carestation, Evita XL, Evita V500, and Servo-i), set in volume controlled mode, at BTPS (body temperature and pressure saturated) condition, with a heated humidifier and a lung model (compliance 16 mL/cm H2O, resistance 20 cm H2O/L/s) placed inside a neonatal incubator. The temperature was targeted at 37°C for both the heated humidifier and the incubator. The setup was run continuously for 24 hours. In the latter 4 ICU ventilators, a Hygrobac or Sterivent S external filter was placed upstream from the expiratory valve for an additional 24-hour period for each. At the end of this period, VT was measured at 4 nominal VT values (300, 400, 500, and 800 mL) with a pneumotachograph. The volume error computed from the ratio of set to measured VT (% set VT) was the primary end point. In these warm and wet conditions, volume error averaged 96 ± 3% for Avea, 100 ± 7% for Puritan Bennett 840, 90 ± 2% for Evita XL, 100 ± 7% for Evita V500, 105 ± 2% for Servo-i, and 108 ± 4% for Engström Carestation (P ventilators for VT delivery, with further significant changes occurring after addition of a filter at the distal expiratory limb.

  9. Popular music scenes and aging bodies.

    Science.gov (United States)

    Bennett, Andy

    2018-06-01

    During the last two decades there has been increasing interest in the phenomenon of the aging popular music audience (Bennett & Hodkinson, 2012). Although the specter of the aging fan is by no means new, the notion of, for example, the aging rocker or the aging punk has attracted significant sociological attention, not least of all because of what this says about the shifting socio-cultural significance of rock and punk and similar genres - which at the time of their emergence were inextricably tied to youth and vociferously marketed as "youth musics". As such, initial interpretations of aging music fans tended to paint a somewhat negative picture, suggesting a sense in which such fans were cultural misfits (Ross, 1994). In more recent times, however, work informed by cultural aging perspectives has begun to consider how so-called "youth cultural" identities may in fact provide the basis of more stable and evolving identities over the life course (Bennett, 2013). Starting from this position, the purpose of this article is to critically examine how aging members of popular music scenes might be recast as a salient example of the more pluralistic fashion in which aging is anticipated, managed and articulated in contemporary social settings. The article then branches out to consider two ways that aging members of music scenes continue their scene involvement. The first focuses on evolving a series of discourses that legitimately position them as aging bodies in cultural spaces that also continue to be inhabited by significant numbers of people in their teens, twenties and thirties. The second sees aging fans taking advantage of new opportunities for consuming live music including winery concerts and dinner and show events. Copyright © 2018 Elsevier Inc. All rights reserved.

  10. The Role of Siliceous Hydrothermal Breccias in the Genesis of Volcanic Massive Sulphide Deposits - Ancient and Recent Systems

    Science.gov (United States)

    Costa, I. A.; Barriga, F. J.; Fouquet, Y.

    2014-12-01

    Siliceous hydrothermal breccias were sampled in two Mid-Atlantic Ridge active sites: Lucky Strike and Menez Gwen. These hydrothermal fields are located in the border of the Azorean plateau, southwest of the Azores islands where the alteration processes affecting basaltic rocks are prominent (Costa et al., 2003). The hydrothermal breccias are genetically related with the circulation of low temperature hydrothermal fluids in diffuse vents. The groundmass of these breccias precipitates from the fluid and consolidates the clastic fragments mostly composed of basalt. The main sources are the surrounding volcanic hills. Breccias are found near hydrothermal vents and may play an important role in the protection of subseafloor hydrothermal deposits forming an impermeable cap due to the high content in siliceous material. The amorphous silica tends to precipitate when the fluid is conductively cooled as proposed by Fouquet et al. (1998) after Fournier (1983). The process evolves gradually from an initial stage where we have just the fragments and circulating seawater. The ascending hydrothermal fluid mixes with seawater, which favours the precipitation of the sulphide components. Sealing of the initially loose fragments begins, the temperature rises below this crust, and the processes of mixing fluid circulation and conductive cooling are simultaneous. At this stage the fluid becomes oversaturated with respect to amorphous silica. This form of silica can precipitate in the open spaces of the porous sulphides and seal the system. Normally this can happen at low temperatures. At this stage the hydrothermal breccia is formed creating a progressively less permeable, eventually impermeable cap rock at the surface. Once the fluid is trapped under this impermeable layer, conductive cooling is enhanced and mixing with seawater is restricted, making the precipitation of amorphous silica more efficient. Since the first discovery and description of recent mineralized submarine

  11. Boundary issues

    Science.gov (United States)

    Townsend, Alan R.; Porder, Stephen

    2011-03-01

    What is our point of no return? Caesar proclaimed 'the die is cast' while crossing the Rubicon, but rarely does modern society find so visible a threshold in our continued degradation of ecosystems and the services they provide. Humans have always used their surroundings to make a living— sometimes successfully, sometimes not (Diamond 2005)—and we intuitively know that there are boundaries to our exploitation. But defining these boundaries has been a challenge since Malthus first prophesied that nature would limit the human population (Malthus 1798). In 2009, Rockström and colleagues tried to quantify what the 6.8 billion (and counting) of us could continue to get away with, and what we couldn't (Rockström et al 2009). In selecting ten 'planetary boundaries', the authors contend that a sustainable human enterprise requires treating a number of environmental thresholds as points of no return. They suggest we breach these Rubicons at our own peril, and that we've already crossed three: biodiversity loss, atmospheric CO2, and disruption of the global nitrogen (N) cycle. As they clearly hoped, the very act of setting targets has provoked scientific inquiry about their accuracy, and about the value of hard targets in the first place (Schlesinger 2009). Such debate is a good thing. Despite recent emphasis on the science of human-ecosystem interactions, understanding of our planetary boundaries is still in its infancy, and controversy can speed scientific progress (Engelhardt and Caplan 1987). A few weeks ago in this journal, Carpenter and Bennett (2011) took aim at one of the more controversial boundaries in the Rockström analysis: that for human alteration of the global phosphorus (P) cycle. Rockström's group chose riverine P export as the key indicator, suggesting that humans should not exceed a value that could trigger widespread marine anoxic events—and asserting that we have not yet crossed this threshold. There are defensible reasons for a marine

  12. A Reappraisal of Combined 147,146Sm-143,142Nd Systematics for Eoarchean Rocks from the Nuvvuagittuq Supracrustal Belt, northern Québec (Canada)

    Science.gov (United States)

    Roth, A. S.; Touboul, M.; Bourdon, B.; Kleine, T.; Mojzsis, S. J.

    2009-12-01

    Coupled 147,146Sm-143,142Nd systematics represent a powerful means to unravel the scale and tempo of the earliest differentiation of the silicate Earth. While a signature of early mantle depletion has been preserved as positive 142Nd anomalies in Eoarchean crustal rocks from the Itsaq Gneiss Complex of southern West Greenland (Harper and Jacobsen 1992, Caro et al. 2006, Bennett et al. 2007) and the Narryer Gneiss Complex in Western Australia (Bennett et al. 2007), evidence for complementary early-enriched reservoirs is sparse. The first such evidence was recently reported by O’Neil et al. (2008) in the form of negative 142Nd anomalies in pre-3750 Ma rocks from the Nuvvuagittuq supracrustal belt (NSB) in northern Québec (e.g. Cates and Mojzsis 2007). Discovery of such anomalies in separate Eoarchean terranes would offer profound insight into the early history of the silicate Earth viz. our understanding of the degree of chemical heterogeneity in the primitive Earth's crust-mantle system. Such heterogeneities may have been preserved for billions of years under the lithospheric roots of cratons (Upadhyay et al. 2009). O'Neill et al. (2008) reported 142Nd/144Nd ratios lower than the terrestrial standard for some NSB rock types (ɛ142Nd = -0.07 to -0.15 that are correlated with the Sm/Nd ratios of their sources). Based on this correlation the authors derived an age of ~4.28 Ga for a cummingtonite+biotite±garnet amphibolite unit that may represent some of the oldest preserved crust on Earth. Others have however questioned this conclusion (Andreasen and Sharma, 2009) and argued instead that the Hadean age of this unit is based on a correlation between rocks that are probably not co-genetic, and that the observed negative 142Nd anomalies may rather be the result of corrections for mass fractionation during mass spectrometric analyses. The importance of identifying early enriched reservoirs in Earth motivated our study. Here we report our first Nd isotope data for rocks

  13. Influence of the Eastern California Shear Zone on deposition of the Mio-Pliocene Bouse Formation: Insights from the Cibola area, Arizona

    Science.gov (United States)

    Dorsey, Rebecca J.; O'Connell, Brennan; Homan, Mindy B.; Bennett, Scott E. K.

    2017-01-01

    The Eastern California Shear Zone (ECSZ) is a wide zone of late Cenozoic strike-slip faults and related diffuse deformation that currently accommodates ~20–25% of relative Pacific–North America plate motion in the lower Colorado River region (Fig. 1A; Dokka and Travis, 1990; Miller et al., 2001; Guest et al., 2007; Mahan et al., 2009). The ECSZ is kinematically linked southward to dextral faults in the northern Gulf of California (Bennett et al., 2016a), and it may have initiated ca. 8 Ma when major strike-slip faults developed in the northern Gulf and Salton Trough region (Bennett et al., 2016b; Darin et al., 2016; Woodburne, 2017). Thus deformation related to the ECSZ occurred in the lower Colorado River region during deposition of the Bouse Formation, which is commonly bracketed between 6.0 and 4.8 Ma (House et al., 2008; Sarna-Wojcicki et al., 2011; Spencer et al., 2013) and may be as old as 6–7 Ma in the south (McDougall and Miranda Martínez, 2014, 2016). Post-4.5 Ma broad sagging is recognized along the lower Colorado River (Howard et al., 2015), but the possibility that faults of the ECSZ influenced local to regional subsidence patterns during deposition of the Bouse Formation has received little attention to date (e.g., Homan, 2014; O’Connell et al., 2016). The Bouse Formation is a widespread sequence of late Miocene to early Pliocene deposits exposed discontinuously along the lower Colorado River corridor (Fig. 1A). In the southern Blythe basin it consists of three regionally correlative members: (1) Basal Carbonate, consisting of supratidal and intertidal mud-flat marls, intertidal and shallow subtidal bioclastic grainstone and conglomerate, and subtidal marl; (2) Siliciclastic member, consisting of Colorado River-derived green claystone, red mudstone and siltstone, and cross-bedded river channel sandstone; and (3) Upper Bioclastic member fossiliferous sandy calcarenite, coarse pebbly grainstone, and calcareous-matrix conglomerate (Homan, 2014

  14. Interkulturelles Lernen während eines kurzzeitigen, studienbegleitenden Fremdsprachenprogramms. Erfahrungen australischer Studierender in Deutschland

    Directory of Open Access Journals (Sweden)

    Rosalind Blood

    2016-04-01

    Full Text Available Studienaufenthalte im Ausland werden im Zuge der Internationalisierung des Hochschulsystems von vielen australischen Universitäten gefördert. In dieser Studie werden die Wahrnehmungen von Austauschstudierenden untersucht, die sie während ihres kurzzeitigen Studienaufenthalts über die deutsche Sprache sowie über Umgangsformen, Sitten und Gebräuche im Gastland machen. Ziel der Studie ist eine Identifizierung von Faktoren, die interkulturelles Lernen erleichtern und deshalb von TutorInnen und Lehrenden bei der Vorbereitung auf ein Auslandsstudium berücksichtigt werden sollten. Zu diesem Zweck wurden mit zehn Studierenden, die an einem sechswöchigen Austauschprogramm in Stuttgart teilgenommen hatten, semi-strukturierte Interviews durchgeführt. Die Daten wurden mit der Methode der qualitativen Inhaltsanalyse untersucht, wobei deduktiv nach dem Modell der Entwicklung interkultureller Sensibilität von Bennett (1986 vorgegangen wurde. Die Ergebnisse unserer Studie weisen darauf hin, dass die Studierenden nur unzureichend in der Lage waren, interkulturelle Situationen zu reflektieren. Dies scheint mit der sprachlichen Kompetenz in der Fremdsprache (L2 und ihren bisherigen Erfahrungen auf Auslandsreisen zusammenzuhängen. Analysen des Mobilitätskapitals (Murphy-Lejeune 2003 könnten helfen, die Studierenden vor, während und nach dem Studienaufenthalt besser zu unterstützen. The support of ‘study abroad’ programs is part of an increasing effort made by Australian universities to internationalize the student experience. This study analyses student perceptions of colloquial language, manners and customs in the host country during a short-term study abroad program. The aim of the study is to identify the factors that influence intercultural learning and thus should be taken into account in order for administrators and instructors to best support students taking part in such short-term exchanges. Bennett’s model of the development of

  15. Production of endoglucanase by the native strains of Streptomyces isolates in submerged fermentation

    Directory of Open Access Journals (Sweden)

    P. Chellapandi

    2008-03-01

    Full Text Available Cellulase is a complex enzyme system, commercially produced by filamentous fungi under solid-state and submerged cultivation. It has wide applicability in textile, food and beverage industry for effective saccharification process. In this study, cellulolytic enzyme activity, particularly endoglucanase of 26 Streptomyces strains isolated from garden soil was examined, including two isolates selected on the basis of potential cellulolytic activity on Bennett's agar medium. To enhance the endoglucanase formation in broth culture, different conditions including carbon and nitrogen sources, and growth conditions were tested. The maximum endoglucanase activity (11.25-11.90 U/mL was achieved within 72-88 h in fermentation medium containing Tween-80, followed by phosphate sources. Both cellulolytic Streptomyces isolates gave almost equal quantity of enzyme in all trials. However the effect of medium ingredients on endoglucanase induction diverged with strains in some extent.A celulase é um sistema enzimático complexo, produzido comercialmente a partir de fungos filamentosos através de cultivo em estádio sólido e submerso. Tem uma grande aplicação na indústria têxtil e de alimentos e bebidas no processo de sacarificação. Nesse estudo, examinou-se a atividade celulolítica, especialmente de englucanase, de 26 cepas de Streptomyces isoladas de solo, incluindo duas cepas selecionadas por sua atividade celulolítica no ágar Bennett. Para estimular a produção de englucanase em meio de cultura, diferentes condições de cultivo, incluindo fonte de carbono e nitrogênio e condições de crescimento, foram avaliadas. A atividade máxima de glucanase (11,25 a 11,90 U/mL foi obtida em 72-88h em meio de cultura contendo Tween-80, seguido por fontes de fosfato. Ambas as cepas celulolíticas de Streptomyces produziram quase a mesma quantidade de enzima em todos os experimentos. Entretanto, o efeito dos ingredientes do meio na indução da glucanase

  16. Paleomagnetism of Early Paleozoic Rocks from the de Long Archipelago and Tectonics of the New Siberian Islands Terrane

    Science.gov (United States)

    Metelkin, D. V.; Chernova, A. I.; Matushkin, N. Y.; Vernikovskiy, V. A.

    2017-12-01

    The De Long archipelago is located to the north of the Anjou archipelago as a part of a large group between the Laptev Sea and the East Siberian Sea - the New Siberian Islands and consists of Jeannette Island, Bennett Island and Henrietta Island. These islands have been shown to be part of a single continental terrane, whose tectonic history was independent of other continental masses at least since the Ordovician. Paleomagnetic and precise geological data for the De Long archipelago were absent until recently. Only in 2013 special international field trips to the De Long Islands could be organized and geological, isotope-geochronological and paleomagnetic studies were carried out.On Jeannette Island a volcanic-sedimentary sequence intruded by mafic dikes was described. The age of these dikes is more likely Early Ordovician, close to 480 Ma, as evidenced by the results of our 40Ar/39Ar and paleomagnetic investigations of the dolerites as well as the result from detrital zircons in the host rocks published before. On Bennett Island, there are widespread Cambrian-Ordovician mainly terrigenous rocks. Paleomagnetic results from these rocks characterize the paleogeographic position of the De Long archipelago at 465 Ma and perhaps at 530 Ma, although there is no evidence for the primary origin of magnetization for the latter. On Henrietta Island the Early Cambrian volcanic-sedimentary section was investigated. A paleomagnetic pole for 520 Ma was obtained and confirmed by new 40Ar/39Ar results. Adding to our previous paleomagnetic data for the Anjou archipelago the extended variant of the apparent polar wander path for the New Siberian Island terrane was created. The established paleolatitudes define its location in the equatorial and subtropical zone no higher than 40 degrees during the Early Paleozoic. Because there are no good confirmations for true polarity and related geographic hemisphere we present two possibilities for tectonic reconstruction. But both these

  17. Impaired glucose homeostasis in non-diabetic Greek hypertensives with diabetes family history. Effect of the obesity status.

    Science.gov (United States)

    Vyssoulis, Gregory P; Liakos, Charalampos I; Karpanou, Eva A; Triantafyllou, Athanasios I; Michaelides, Andreas P; Tzamou, Vanessa E; Markou, Maria I; Stefanadis, Christodoulos I

    2013-01-01

    Arterial hypertension (AH) and diabetes mellitus (DM) are established cardiovascular risk factors. Impaired glucose homeostasis (IGH; impaired fasting glucose or/and impaired glucose tolerance) or pre-diabetes, obesity, and DM family history identify individuals at risk for type 2 DM in whom preventive interventions are necessary. The aim of this study was to determine the glycemic profile in non-diabetic Greek adult hypertensive men and women according to DM family history and the obesity status. Diabetes family history, obesity markers (waist-to-hip ratio, WHR; body mass index, BMI), glycemic parameters (fasting and 2-hour post-load plasma glucose, if necessary; glycated hemoglobin, HbA1c; fasting insulin), insulin resistance indices (homeostasis model assessment, HOMA; quantitative insulin sensitivity check index, QUICKI; Bennett; McAuley), and IGH prevalence were determined in a large cohort of 11,540 Greek hypertensives referred to our institutions. Positive DM family history was associated with elevated fasting glucose (98.6 ± 13.1 vs 96.5 ± 12.3 mg/dL), HbA1c (5.58% ± 0.49% vs 5.50% ± 0.46%), fasting insulin (9.74 ± 4.20 vs 9.21 ± 3.63 μU/mL) and HOMA (2.43 ± 1.19 vs 2.24 ± 1.01) values, lower QUICKI (0.342 ± 0.025 vs 0.345 ± 0.023), Bennett (0.285 ± 0.081 vs 0.292 ± 0.078) and McAuley (6.73 ± 3.43 vs 6.95 ± 3.44) values, and higher IGH prevalence (45.3% vs 38.7%); P history was significant (P history present with higher IGH prevalence and worse glycemic indices levels compared with those with negative family history, especially in the higher WHR/BMI subgroups. Copyright © 2013 American Society of Hypertension. Published by Elsevier Inc. All rights reserved.

  18. Two new species and a new phyllobothriid cestode genus from sharks of the genus Negaprion Whitley (Carcharhiniformes).

    Science.gov (United States)

    Ruhnke, T R; Workman, R E

    2013-05-01

    Alexandercestus n. g. (Cestoda: Tetraphyllidea) is erected for two cestode species found parasitising the two known species of lemon sharks (Carcharhiniformes: Negaprion spp.). This new genus differs from all other phyllobothriid genera except for Hemipristicola Cutmore, Theiss, Bennett & Cribb, 2011, Marsupiobothrium Yamaguti, 1952, Nandocestus Reyda, 2008, Orectolobicestus Ruhnke, Caira & Carpenter 2006, Orygmatobothrium Diesing, 1863, Paraorygmatobothrium Ruhnke, 1994 and Phyllobothrium van Beneden, 1849 in possessing uniloculate bothridia with an apical sucker and neck scutes. Alexandercestus differs from Orectolobicestus and Nandocestus in lacking marginal loculi on the bothridia, from Paraorygmatobothrium in possessing uninterrupted vitelline follicles at the level of the ovary and from Phyllobothrium in being euapolytic as opposed to anapolytic and in lacking posteriorly bifid bothridia. The new genus lacks the central accessory bothridial organ seen in specimens of Orygmatobothrium, and lacks the central bothridial accessory sucker of specimens of Marsupiobothrium. Alexandercestus spp. compare most favourably with specimens of Hemipristicola, especially with respect to aspects of proglottid morphology, but differ in possessing aristate gladiate spinitriches rather than serrate gladiate spinitriches on the proximal bothridial surface. In addition, the bothridia of Alexandercestus spp. are comparatively more fleshy and foliose than those in specimens of Hemipristicola. Two new species of Alexandercestus n. g. are described, Alexandercestus gibsoni n. sp. from Negaprion acutidens, collected from off northern Australia and the Marshall Islands, and Alexandercestus manteri n. sp. from N. brevirostris, collected off the islands of Bimini and the Florida Keys. The two new species differ in total length and vitelline follicle distribution. Bayesian inference and parsimony analysis of the D1-D3 region of the large nuclear ribosomal DNA of 17 published and seven

  19. The effect of electromagnetic interference from mobile communication on the performance of intensive care ventilators.

    Science.gov (United States)

    Jones, R P; Conway, D H

    2005-08-01

    Electromagnetic interference produced by wireless communication can affect medical devices and hospital policies exist to address this risk. During the transfer of ventilated patients, these policies may be compromised by essential communication between base and receiving hospitals. Local wireless networks (e.g. Bluetooth) may reduce the 'spaghetti syndrome' of wires and cables seen on intensive care units, but also generate electromagnetic interference. The aim of this study was to investigate these effects on displayed and actual ventilator performance. Five ventilators were tested: Drager Oxylog 2000, BREAS LTV-1000, Respironics BiPAP VISION, Puritan Bennett 7200 and 840. Electromagnetic interference was generated by three devices: Simoco 8020 radio handset, Nokia 7210 and Nokia 6230 mobile phone, Nokia 6230 communicating via Bluetooth with a Palm Tungsten T Personal Digital Assistant. We followed the American National Standard Recommended Practice for On-Site, Ad Hoc Testing (ANSI C63) for electromagnetic interference. We used a ventilator tester, to simulate healthy adult lungs and measure ventilator performance. The communication device under test was moved in towards each ventilator from a distance of 1 m in six axes. Alarms or error codes on the ventilator were recorded, as was ventilator performance. All ventilators tested, except for the Respironics VISION, showed a display error when subjected to electromagnetic interference from the Nokia phones and Simoco radio. Ventilator performance was only affected by the radio which caused the Puritan Bennett 840 to stop functioning completely. The transfer ventilators' performance were not affected by radio or mobile phone, although the mobile phone did trigger a low-power alarm. Effects on intensive care ventilators included display reset, with the ventilator restoring normal display function within 2 s, and low-power/low-pressure alarms. Bluetooth transmission had no effect on the function of all the

  20. LP DAAC MEaSUREs Project Artifact Tracking Via the NASA Earthdata Collaboration Environment

    Science.gov (United States)

    Bennett, S. D.

    2015-12-01

    The Land Processes Distributed Active Archive Center (LP DAAC) is a NASA Earth Observing System (EOS) Data and Information System (EOSDIS) DAAC that supports selected EOS Community non-standard data products such as the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Emissivity Database (GED), and also supports NASA Earth Science programs such as Making Earth System Data Records for Use in Research Environments (MEaSUREs) to contribute in providing long-term, consistent, and mature data products. As described in The LP DAAC Project Lifecycle Plan (Daucsavage, J.; Bennett, S., 2014), key elements within the Project Inception Phase fuse knowledge between NASA stakeholders, data producers, and NASA data providers. To support and deliver excellence for NASA data stewardship, and to accommodate long-tail data preservation with Community and MEaSUREs products, the LP DAAC is utilizing NASA's own Earthdata Collaboration Environment to bridge stakeholder communication divides. By leveraging a NASA supported platform, this poster describes how the Atlassian Confluence software combined with a NASA URS/Earthdata support can maintain each project's members, status, documentation, and artifact checklist. Furthermore, this solution provides a gateway for project communities to become familiar with NASA clients, as well as educating the project's NASA DAAC Scientists for NASA client distribution.

  1. Aquatic macroinvertebrates and water quality of Sandia Canyon, Los Alamos National Laboratory, November 1993--October 1994

    Energy Technology Data Exchange (ETDEWEB)

    Cross, S.

    1995-08-01

    The Ecological Studies Team (EST) of ESH-20 at Los Alamos National Laboratory (LANL) has collected samples from the stream within Sandia Canyon since the summer of 1990. These field studies gather water quality measurements and collect aquatic macroinvertebrates from permanent sampling sites. Reports by Bennett (1994) and Cross (1994) discuss previous EST aquatic studies in Sandia Canyon. This report updates and expands those findings. EST collected water quality data and aquatic macroinvertebrates at five permanent stations within the canyon from November 1993 through October 1994. The two upstream stations are located below outfalls that discharge industrial and sanitary waste effluent into the stream, thereby maintaining year-round flow. Some water quality parameters are different at the first three stations from those expected of natural streams in the area, indicating degraded water quality due to effluent discharges. The aquatic habitat at the upper stations has also been degraded by sedimentation and channelization. The macroinvertebrate communities at these stations are characterized by low diversities and unstable communities. In contrast, the two downstream stations appear to be in a zone of recovery, where water quality parameters more closely resemble those found in natural streams of the area. The two lower stations have increased macroinvertebrate diversity and stable communities, further indications of downstream water quality improvement.

  2. Status of the Center for Advanced Microstructures and Devices (CAMD)-2010

    International Nuclear Information System (INIS)

    Roy, Amitava; Morikawa, Eizi; Bellamy, Henry; Kumar, Challa; Goettert, Jost; Suller, Victor; Morris, Kevin; Kurtz, Richard; Scott, John

    2011-01-01

    The J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices (CAMD) is a 1.3 GeV synchrotron-radiation facility owned and operated by the State of Louisiana. Fifteen beamlines provide radiation for CAMD users and cover the spectral range from the far IR to X-rays of ca. 40 keV. Eleven of them receive radiation from bending magnets and four from a 7 T wavelength shifter. A wide range of basic and applied scientific experiments as well as microfabrication are performed at these beamlines. The nanomaterial synthesis and characterization laboratory at CAMD continues to add new instruments such as SQUID magnetometer (Quantum Deign MPMS XL5) and high precision microfluidic-based nanomaterials synthesis equipment complementing already available facilities. We have recently received NSF MRI funding for a multipole 7.5 T wiggler that will become operational in 2012. Generous equipment donations from University of California at Riverside (Professor Jory Yarmoff) and University of Bonn (ELSA facility) will provide users with two additional VUV beamlines in the near future.

  3. Dense sheet Z-pinches

    International Nuclear Information System (INIS)

    Tetsu, Miyamoto

    1999-01-01

    The steady state and quasi-steady processes of infinite- and finite-width sheet z-pinches are studied. The relations corresponding to the Bennett relation and Pease-Braginskii current of cylindrical fiber z-pinches depend on a geometrical factor in the sheet z-pinches. The finite-width sheet z-pinch is approximated by a segment of infinite-width sheet z-pinch, if it is wide enough, and corresponds to a number of (width/thickness) times fiber z-pinch plasmas of the diameter that equals the sheet thickness. If the sheet current equals this number times the fiber current, the plasma created in the sheet z-pinches is as dense as in the fiber z-pinches. The total energy of plasma and magnetic field per unit mass is approximately equal in both pinches. Quasi-static transient processes are different in several aspects from the fiber z-pinch. No radiation collapse occurs in the sheet z-pinch. The stability is improved in the sheet z-pinches. The fusion criterions and the experimental arrangements to produce the sheet z-pinches are also discussed. (author)

  4. Effects of Using Graphics and Animation Online Problem-Based Learning on Visualization Skills among Students

    Science.gov (United States)

    Ariffin, A.; Samsudin, M. A.; Zain, A. N. Md.; Hamzah, N.; Ismail, M. E.

    2017-05-01

    The Engineering Drawing subject develops skills in geometry drawing becoming more professional. For the concept in Engineering Drawing, students need to have good visualization skills. Visualization is needed to help students get a start before translating into a drawing. So that, Problem Based Learning (PBL) using animation mode (PBL-A) and graphics mode (PBL-G) will be implemented in class. Problem-solving process is repeatedly able to help students interpret engineering drawings step work correctly and accurately. This study examined the effects of PBL-A online and PBL-G online on visualization skills of students in polytechnics. Sixty eight mechanical engineering students have been involved in this study. The visualization test adapted from Bennett, Seashore and Wesman was used in this study. Results showed significant differences in mean scores post-test of visualization skills among the students enrolled in PBL-G with the group of students who attended PBL-A online after effects of pre-test mean score is controlled. Therefore, the effects of animation modes have a positive impact on increasing students’ visualization skills.

  5. Rare events in many-body systems: reactive paths and reaction constants for structural transitions

    International Nuclear Information System (INIS)

    Picciani, M.

    2012-01-01

    This PhD thesis deals with the study of fundamental physics phenomena, with applications to nuclear materials of interest. We have developed methods for the study of rare events related to thermally activated structural transitions in many body systems. The first method involves the numerical simulation of the probability current associated with reactive paths. After deriving the evolution equations for the probability current, a Diffusion Monte Carlo algorithm is implemented in order to sample this current. This technique, called Transition Current Sampling was applied to the study of structural transitions in a cluster of 38 atoms with Lennard-Jones potential (LJ-38). A second algorithm, called Transition Path Sampling with local Lyapunov bias (LyTPS), was then developed. LyTPS calculates reaction rates at finite temperature by following the transition state theory. A statistical bias based on the maximum local Lyapunov exponents is introduced to accelerate the sampling of reactive trajectories. To extract the value of the equilibrium reaction constants obtained from LyTPS, we use the Multistate Bennett Acceptance Ratio. We again validate this method on the LJ-38 cluster. LyTPS is then used to calculate migration constants for vacancies and divacancies in the α-Iron, and the associated migration entropy. These constants are used as input parameter for codes modeling the kinetic evolution after irradiation (First Passage Kinetic Monte Carlo) to reproduce numerically resistivity recovery experiments in α-Iron. (author) [fr

  6. Using a tungsten rollbar to characterize the source spot of a megavoltage bremsstrahlung linac

    International Nuclear Information System (INIS)

    Schach von Wittenau, A.E.; Logan, C.M.; Rikard, R.

    2002-01-01

    In photon teletherapy, the size and functional form of the photon source spot affect both the sharpness of the penumbra of treatment fields and the sharpness of portal images. Photon source spot parameters are also used in photon teletherapy dose calculation codes. A simple method for characterizing the source spot would complement the existing, more involved methods that have been described in the medical physics literature. Such a method, using a rollbar made of tungsten or other high-Z metal, is used in industrial radiography. We describe the use of a tungsten rollbar for characterizing the source spot edge spread function (and thereby the source spot size and shape) of a megavoltage bremsstrahlung photon source. We use Monte Carlo simulations to quantify anticipated experimental artifacts of the method, assuming typical spot sizes for circ-function, Gaussian, and Bennett line shapes. We illustrate the use of the rollbar method by characterizing the source spot of a typical 9 MV linac used for industrial radiography. The source spot is analyzed using two approaches: (a) fitting the rollbar image with analytic functions and (b) using Abel inversion to obtain the cylindrically symmetric spot profile consistent with the measured rollbar image. Monte Carlo simulations, based on a 6 MV photon teletherapy accelerator, suggest that aspects of the method are applicable to medical bremsstrahlung sources

  7. Non-isothermal crystallization kinetics of Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass containing nucleation agent P{sub 2}O{sub 5}/TiO{sub 2}

    Energy Technology Data Exchange (ETDEWEB)

    Li, Bin, E-mail: stra-ceo@163.com; Wang, Yongya; Luo, Wenqin; Li, Jingfen [Huzhou University, Department of Material Chemistry (China); Li, Jianyou [Huzhou Central Hospital, Orthopedic Department (China)

    2017-03-15

    Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass ceramics containing nucleation agent P{sub 2}O{sub 5}/TiO{sub 2} were prepared by sol-gel method. The samples were characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The activation energy and kinetic parameters for crystallization of the samples were calculated by the Johnson-Mehi-Avrami (JMA) model and Augis-Bennett method according to the results of DSC. The results showed that the crystallization mechanism of Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass, whose non-isothermal kinetic parameter n = 2.3, was consistent with surface crystallization of the JMA model. The kinetics model function of Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass, f(α) = 2.3(1–α)[–ln(1–α)]{sup 0.57}, was also obtained. The addition of nucleation agent P{sub 2}O{sub 5}/TiO{sub 2} could reduce the activation energy, which made the crystal growth modes change from onedimensional to three-dimensional.

  8. Minimizing deviant behavior in healthcare organizations: the effects of supportive leadership and job design.

    Science.gov (United States)

    Chullen, C Logan; Dunford, Benjamin B; Angermeier, Ingo; Boss, R Wayne; Boss, Alan D

    2010-01-01

    In an era when healthcare organizations are beset by intense competition, lawsuits, and increased administrative costs, it is essential that employees perform their jobs efficiently and without distraction. Deviant workplace behavior among healthcare employees is especially threatening to organizational effectiveness, and healthcare managers must understand the antecedents of such behavior to minimize its prevalence. Deviant employee behavior has been categorized into two major types, individual and organizational, according to the intended target of the behavior. Behavior directed at the individual includes such acts as harassment and aggression, whereas behavior directed at the organization includes such acts as theft, sabotage, and voluntary absenteeism, to name a few (Robinson and Bennett 1995). Drawing on theory from organizational behavior, we examined two important features of supportive leadership, leader-member exchange (LMX) and perceived organizational support (POS), and two important features of job design, intrinsic motivation and depersonalization, as predictors of subsequent deviant behavior in a sample of over 1,900 employees within a large US healthcare organization. Employees who reported weaker perceptions of LMX and greater perceptions of depersonalization were more likely to engage in deviant behavior directed at the individual, whereas employees who reported weaker perceptions of POS and intrinsic motivation were more likely to engage in deviant behavior directed at the organization. These findings give rise to specific prescriptions for healthcare managers to prevent or minimize the frequency of deviant behavior in the workplace.

  9. Record Club

    CERN Multimedia

    Record Club

    2011-01-01

    http://cern.ch/Record.Club November  Selections Just in time for the holiday season, we have added a number of new CDs and DVDs into the Club. You will find the full lists at http://cern.ch/record.club; select the "Discs of the Month" button on the left side on the left panel of the web page and then Nov 2011. New films include the all 5 episodes of Fast and Furious, many of the most famous films starring Jean-Paul Belmondo and those of Louis de Funes and some more recent films such as The Lincoln Lawyer and, according to some critics, Woody Allen’s best film for years – Midnight in Paris. For the younger generation there is Cars 2 and Kung Fu Panda 2. New CDs include the latest releases by Adele, Coldplay and the Red Hot Chili Peppers. We have also added the new Duets II CD featuring Tony Bennett singing with some of today’s pop stars including Lady Gaga, Amy Winehouse and Willy Nelson. The Club is now open every Monday, Wednesday and Friday ...

  10. Converging ligand-binding free energies obtained with free-energy perturbations at the quantum mechanical level.

    Science.gov (United States)

    Olsson, Martin A; Söderhjelm, Pär; Ryde, Ulf

    2016-06-30

    In this article, the convergence of quantum mechanical (QM) free-energy simulations based on molecular dynamics simulations at the molecular mechanics (MM) level has been investigated. We have estimated relative free energies for the binding of nine cyclic carboxylate ligands to the octa-acid deep-cavity host, including the host, the ligand, and all water molecules within 4.5 Å of the ligand in the QM calculations (158-224 atoms). We use single-step exponential averaging (ssEA) and the non-Boltzmann Bennett acceptance ratio (NBB) methods to estimate QM/MM free energy with the semi-empirical PM6-DH2X method, both based on interaction energies. We show that ssEA with cumulant expansion gives a better convergence and uses half as many QM calculations as NBB, although the two methods give consistent results. With 720,000 QM calculations per transformation, QM/MM free-energy estimates with a precision of 1 kJ/mol can be obtained for all eight relative energies with ssEA, showing that this approach can be used to calculate converged QM/MM binding free energies for realistic systems and large QM partitions. © 2016 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc. © 2016 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc.

  11. Gibbs Sampler-Based λ-Dynamics and Rao-Blackwell Estimator for Alchemical Free Energy Calculation.

    Science.gov (United States)

    Ding, Xinqiang; Vilseck, Jonah Z; Hayes, Ryan L; Brooks, Charles L

    2017-06-13

    λ-dynamics is a generalized ensemble method for alchemical free energy calculations. In traditional λ-dynamics, the alchemical switch variable λ is treated as a continuous variable ranging from 0 to 1 and an empirical estimator is utilized to approximate the free energy. In the present article, we describe an alternative formulation of λ-dynamics that utilizes the Gibbs sampler framework, which we call Gibbs sampler-based λ-dynamics (GSLD). GSLD, like traditional λ-dynamics, can be readily extended to calculate free energy differences between multiple ligands in one simulation. We also introduce a new free energy estimator, the Rao-Blackwell estimator (RBE), for use in conjunction with GSLD. Compared with the current empirical estimator, the advantage of RBE is that RBE is an unbiased estimator and its variance is usually smaller than the current empirical estimator. We also show that the multistate Bennett acceptance ratio equation or the unbinned weighted histogram analysis method equation can be derived using the RBE. We illustrate the use and performance of this new free energy computational framework by application to a simple harmonic system as well as relevant calculations of small molecule relative free energies of solvation and binding to a protein receptor. Our findings demonstrate consistent and improved performance compared with conventional alchemical free energy methods.

  12. Incorporating the Principles of Nursing Practice and the 6Cs.

    Science.gov (United States)

    Foulds, Louise; Timms, Katy; Barwell, Julie; Gunning, Amanda

    This article will demonstrate how the Royal College of Nursing's (RCN's) Principles of Nursing Practice (2010) and the 6Cs (Cummings and Bennett, 2012a ; 2012b) can be applied to stoma care nursing. The multidimensional role of the stoma care nurse means that he or she is well placed to improve quality and standards in stoma nursing care. Stoma care nurses provide direct patient care and can play a vital part in helping patients with a stoma, a long-term condition, ensuring that their patients get the best possible care (RCN, 2010). The poster contained within this article was displayed at the Association of Stoma Care Nurses (ASCN) national conference in Harrogate in October 2014 and was voted the overall winner. The authors of the article and the poster are stoma care nurses working in the acute and community settings and, between 2013 and 2014, they completed the RCN's Clinical Leadership Programme (RCN, 2005). The NHS Plan (Department of Health, 2000) identified the importance of leadership and the necessity of remodelling the NHS around the needs of service users. With this in mind, using the Principles of Nursing Practice and the 6Cs within stoma care demonstrates development with a consistent focus on patient care.

  13. 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

  14. Phase-remapping attack in practical quantum-key-distribution systems

    International Nuclear Information System (INIS)

    Fung, Chi-Hang Fred; Qi, Bing; Lo, Hoi-Kwong; Tamaki, Kiyoshi

    2007-01-01

    Quantum key distribution (QKD) can be used to generate secret keys between two distant parties. Even though QKD has been proven unconditionally secure against eavesdroppers with unlimited computation power, practical implementations of QKD may contain loopholes that may lead to the generated secret keys being compromised. In this paper, we propose a phase-remapping attack targeting two practical bidirectional QKD systems (the 'plug-and-play' system and the Sagnac system). We showed that if the users of the systems are unaware of our attack, the final key shared between them can be compromised in some situations. Specifically, we showed that, in the case of the Bennett-Brassard 1984 (BB84) protocol with ideal single-photon sources, when the quantum bit error rate (QBER) is between 14.6% and 20%, our attack renders the final key insecure, whereas the same range of QBER values has been proved secure if the two users are unaware of our attack; also, we demonstrated three situations with realistic devices where positive key rates are obtained without the consideration of Trojan horse attacks but in fact no key can be distilled. We remark that our attack is feasible with only current technology. Therefore, it is very important to be aware of our attack in order to ensure absolute security. In finding our attack, we minimize the QBER over individual measurements described by a general POVM, which has some similarity with the standard quantum state discrimination problem

  15. Scale challenges of the MeerKAT Radio Telescope

    CERN Multimedia

    CERN. Geneva; Ratcliffe, Simon

    2017-01-01

    A discussion on the MeerKAT Radio Telescope, currently nearing completion in the Karoo desert region of South Africa. This talk covers a quick introduction to radio astronomy data processing and the scale challenges inherent therein. The solutions to the challenges posed will be discussed, including coverage of our MESOS based execution framework and the role of the various data storage regimes in our processing and analysis pipelines. The final third will highlight our multiple uses of CEPH, including our self-build hardware, 20PB science archive. About the speakers Simon Ratcliffe has a background in astrophysics and computer science, and is currently the technical lead for scientific computing at SKA South Africa. In this role he oversees the architecture and technical direction of the science processor for the MeerKAT radio telescope. Thomas Bennett has a masters degree in electronic engineering and is currently a developer in the scientific computing as SKA South Africa. In this role he overs...

  16. Some new experimental results on the Zr-Nb-Fe system

    Energy Technology Data Exchange (ETDEWEB)

    Ramos, C. [Departamento de Fisica - CAC - Comision Nacional de Energia Atomica, Av. Gral Paz 1499, (1650) San Martin, Buenos Aires (Argentina)]. E-mail: ciramos@cnea.gov.ar; Saragovi, C. [Departamento de Fisica - CAC - Comision Nacional de Energia Atomica, Av. Gral Paz 1499, (1650) San Martin, Buenos Aires (Argentina); Granovsky, M.S. [Departamento de Materiales - CAC - Comision Nacional de Energia Atomica, Av. Gral Paz 1499, (1650) San Martin, Buenos Aires (Argentina)

    2007-06-30

    The scope of this study is the identification and characterization of intermetallic phases and their binary and ternary fields in the Zr-Nb-Fe phase diagram. A construction of the central region of the phase diagram at 900 {sup o}C was proposed using new experimental results obtained by optical and scanning electron microscopies, X-ray diffraction and microprobe analysis. In addition to the well-known Laves C15-type (ZrNb)Fe{sub 2} phase (the polytypic C14 and C36 structures were not detected in the studied compositions), another Laves C14-type phase was found (Zr(NbFe){sub 2}). Watson and Bennett maps helped to predict the occurrence of both of these phases. Moreover, the validity of the Pettifor prediction model for Laves phases in pseudobinary systems with transition elements was checked, verifying the obtained experimental results in the Zr-Nb-Fe system. On the other hand it was determined that the Zr-Nb-Fe ternary system at 900 {sup o}C, as it happens in the binary Zr-Nb system, would have a miscibility gap ({beta}-Zr + {beta}-Nb) in the 25-70 at.% Nb composition range, accepting up to 3 at.% Fe approximately.

  17. High-dimensional quantum cloning and applications to quantum hacking.

    Science.gov (United States)

    Bouchard, Frédéric; Fickler, Robert; Boyd, Robert W; Karimi, Ebrahim

    2017-02-01

    Attempts at cloning a quantum system result in the introduction of imperfections in the state of the copies. This is a consequence of the no-cloning theorem, which is a fundamental law of quantum physics and the backbone of security for quantum communications. Although perfect copies are prohibited, a quantum state may be copied with maximal accuracy via various optimal cloning schemes. Optimal quantum cloning, which lies at the border of the physical limit imposed by the no-signaling theorem and the Heisenberg uncertainty principle, has been experimentally realized for low-dimensional photonic states. However, an increase in the dimensionality of quantum systems is greatly beneficial to quantum computation and communication protocols. Nonetheless, no experimental demonstration of optimal cloning machines has hitherto been shown for high-dimensional quantum systems. We perform optimal cloning of high-dimensional photonic states by means of the symmetrization method. We show the universality of our technique by conducting cloning of numerous arbitrary input states and fully characterize our cloning machine by performing quantum state tomography on cloned photons. In addition, a cloning attack on a Bennett and Brassard (BB84) quantum key distribution protocol is experimentally demonstrated to reveal the robustness of high-dimensional states in quantum cryptography.

  18. Maynard Participation in Alaska Forum on the Environment Panel Discussion on Increasing Input to the US National Climate Assessment (NCA) and the Intergovernmental Panel on Climate Change (IPCC) Processes from Alaska, with Emphasis on Indigenous Peoples Issues

    Science.gov (United States)

    Maynard, Nancy G.

    2012-01-01

    Dr. Nancy Maynard was invited by the Alaska Forum on the Environment to participate in a Panel Discussion to discuss (1) background about what the US NCA and International IPCC assessments are, (2) the impact the assessments have on policy-making, (3) the process for participation in both assessments, (4) how we can increase participation by Indigenous Peoples such as Native Americans and Alaska Natives, (5) How we can increase historical and current impacts input from Native communities through stories, oral history, "grey" literature, etc. The session will be chaired by Dr. Bull Bennett, a cochair of the US NCA's chapter on "Native and Tribal Lands and Resources" and Dr. Maynard is the other co-chair of that chapter and they will discuss the latest activities under the NCA process relevant to Native Americans and Alaska Natives. Dr. Maynard is also a Lead Author of the "Polar Regions" chapter of the IPCC WG2 (5th Assessment) and she will describes some of the latest approaches by the IPCC to entrain more Indigenous peoples into the IPCC process.

  19. The Associations of Lens Power With Age and Axial Length in Healthy Chinese Children and Adolescents Aged 6 to 18 Years.

    Science.gov (United States)

    Xiong, Shuyu; Zhang, Bo; Hong, Yuan; He, Xiangui; Zhu, Jianfeng; Zou, Haidong; Xu, Xun

    2017-11-01

    To investigate the relationship between lens power and age as well as the relationship between lens power and axial length (AL) in Chinese children and adolescents. The participants underwent a comprehensive ophthalmic examination that included AL, cycloplegic refraction, and Pentacam measurements. The crystalline lens power was calculated using Bennett's formula and then compared among the children of different age groups, refractive statuses, and AL categories. The association of lens power and AL was analyzed using multiple regression. A total of 1992 children and adolescents aged 6- to 18-years old were included. The difference in lens power was greater before 10-years old, followed by a relatively smaller difference in children aged 10 to 14 years and the difference in lens power came to a near plateau in adolescents after 14-years old. The negative association between lens power and AL was found to be more evident in nonmyopes than in myopes irrespective of age (younger than 10 years: nonmyopes: β = -1.499, myopes: β = -0.872; older than 10 years: nonmyopes: β = -1.288, myopes: β = -0.390, all P power in children and adolescents aged 6 to 18 years exhibited three stages. The association between lens power and AL differed between the nonmyopes and myopes. These findings suggested that less reduction in lens power might be associated with both growing age and increasing AL in myopes.

  20. Laboratory simulation of infrared astrophysical features

    International Nuclear Information System (INIS)

    Rose, L.A.

    1979-01-01

    Laboratory infrared emission and absorption spectra have been taken of terrestrial silicates, meteorites and lunar soils in the form of micrometer and sub-micrometer grains. The emission spectra were taken in a way that imitates telescopic observations. The purpose was to see which materials best simulate the 10 μm astrophysical feature. The emission spectra of dunite, fayalite and Allende give a good fit to the 10 μm broadband emission feature of comets Bennett and Kohoutek. A study of the effect of grain size on the presence of the 10 μm emission features of dunite shows that for particles larger than 37 μm no feature is seen. The emission spectrum of the Murray meteorite, a Type 2 carbonaceous chondrite, is quite similar to the intermediate resolution spectrum of comet Kohoutek in the 10 μm region. Hydrous silicates or amorphous magnesium silicates in combination with high-temperature condensates, such as olivine or anorthite, would yield spectra that match the intermediate resolution spectrum of comet Kohoutek in the 10 μm region. Glassy olivine and glassy anorthite in approximately equal proportions would also give a spectrum that is a good fit to the cometary 10 μm feature. (Auth.)

  1. Attacks exploiting deviation of mean photon number in quantum key distribution and coin tossing

    Science.gov (United States)

    Sajeed, Shihan; Radchenko, Igor; Kaiser, Sarah; Bourgoin, Jean-Philippe; Pappa, Anna; Monat, Laurent; Legré, Matthieu; Makarov, Vadim

    2015-03-01

    The security of quantum communication using a weak coherent source requires an accurate knowledge of the source's mean photon number. Finite calibration precision or an active manipulation by an attacker may cause the actual emitted photon number to deviate from the known value. We model effects of this deviation on the security of three quantum communication protocols: the Bennett-Brassard 1984 (BB84) quantum key distribution (QKD) protocol without decoy states, Scarani-Acín-Ribordy-Gisin 2004 (SARG04) QKD protocol, and a coin-tossing protocol. For QKD we model both a strong attack using technology possible in principle and a realistic attack bounded by today's technology. To maintain the mean photon number in two-way systems, such as plug-and-play and relativistic quantum cryptography schemes, bright pulse energy incoming from the communication channel must be monitored. Implementation of a monitoring detector has largely been ignored so far, except for ID Quantique's commercial QKD system Clavis2. We scrutinize this implementation for security problems and show that designing a hack-proof pulse-energy-measuring detector is far from trivial. Indeed, the first implementation has three serious flaws confirmed experimentally, each of which may be exploited in a cleverly constructed Trojan-horse attack. We discuss requirements for a loophole-free implementation of the monitoring detector.

  2. Saving lives: A meta-analysis of team training in healthcare.

    Science.gov (United States)

    Hughes, Ashley M; Gregory, Megan E; Joseph, Dana L; Sonesh, Shirley C; Marlow, Shannon L; Lacerenza, Christina N; Benishek, Lauren E; King, Heidi B; Salas, Eduardo

    2016-09-01

    As the nature of work becomes more complex, teams have become necessary to ensure effective functioning within organizations. The healthcare industry is no exception. As such, the prevalence of training interventions designed to optimize teamwork in this industry has increased substantially over the last 10 years (Weaver, Dy, & Rosen, 2014). Using Kirkpatrick's (1956, 1996) training evaluation framework, we conducted a meta-analytic examination of healthcare team training to quantify its effectiveness and understand the conditions under which it is most successful. Results demonstrate that healthcare team training improves each of Kirkpatrick's criteria (reactions, learning, transfer, results; d = .37 to .89). Second, findings indicate that healthcare team training is largely robust to trainee composition, training strategy, and characteristics of the work environment, with the only exception being the reduced effectiveness of team training programs that involve feedback. As a tertiary goal, we proposed and found empirical support for a sequential model of healthcare team training where team training affects results via learning, which leads to transfer, which increases results. We find support for this sequential model in the healthcare industry (i.e., the current meta-analysis) and in training across all industries (i.e., using meta-analytic estimates from Arthur, Bennett, Edens, & Bell, 2003), suggesting the sequential benefits of training are not unique to medical teams. Ultimately, this meta-analysis supports the expanded use of team training and points toward recommendations for optimizing its effectiveness within healthcare settings. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

  3. Off-label drug promotion and the ephemeral line between marketing and education.

    Science.gov (United States)

    Krause, Joan H

    2015-11-01

    Fueled by massive settlements and concerns about pharmaceutical company influence over medical practice, the fight over off-label promotion has become a rancorous one with little middle ground. For some, off-label restrictions are both bad law and bad medicine, violating the First Amendment while denying physicians access to crucial information. For others, the battle pits the very soul of the FDA against the excesses of a profit-driven marketplace. Far from ameliorating concerns over manufacturer influence, the New Model proposed by Bennett et al. would exacerbate them. The Model would limit FDA authority to core communications proposing immediate commercial transactions, giving manufacturers unfettered discretion over scientific exchanges and nearly free rein over truthful quasi-commercial communications. Most problematically, the New Model relies on the longstanding assumption that truly educational and scientific activities can be distinguished from simple product promotion - a dichotomy that exists not only in federal law and professional association codes, but also underlies the jurisdiction of the federal agencies overseeing the pharmaceutical sector. Experience invites skepticism that these activities can be cleanly separated, suggesting that the New Model may simply perpetuate abusive behaviors without offering concomitant benefits to physicians or patients.

  4. Anti-phytopathogen potential of endophytic actinobacteria isolated from tomato plants (Lycopersicon esculentum) in southern Brazil, and characterization of Streptomyces sp. R18(6), a potential biocontrol agent.

    Science.gov (United States)

    de Oliveira, Margaroni Fialho; da Silva, Mariana Germano; Van Der Sand, Sueli T

    2010-09-01

    Tomato plants (Lycopersicon esculentum) are highly susceptible to phytopathogen attack. The resulting intensive application of pesticides on tomato crops can affect the environment and health of humans and animals. The objective of this study was to select potential biocontrol agents among actinobacteria from tomato plants, in a search for alternative phytopathogen control. We evaluated 70 endophytic actinobacteria isolated from tomato plants in southern Brazil, testing their antimicrobial activity, siderophore production, indoleacetic acid production, and phosphate solubility. The actinomycete isolate with the highest antimicrobial potential was selected using the agar-well diffusion method, in order to optimize conditions for the production of compounds with antimicrobial activity. For this study, six growth media (starch casein-SC, ISP2, Bennett's, Sahin, Czapek-Dox, and TSB), three temperatures (25 degrees C, 30 degrees C, and 35 degrees C) and different pH were tested. Of the actinobacteria tested, 88.6% showed antimicrobial activity against at least one phytopathogen, 72.1% showed a positive reaction for indoleacetic acid production, 86.8% produced siderophores and 16.2% showed a positive reaction for phosphate solubility. Isolate R18(6) was selected due to its antagonistic activity against all phytopathogenic microorganisms tested in this study. The best conditions for production were observed in the SC medium, at 30 degrees C and pH 7.0. The isolate R18(6) showed close biochemical and genetic similarity to Streptomyces pluricolorescens. Copyright 2010 Elsevier Masson SAS. All rights reserved.

  5. Enhancing Self-Practice/Self-Reflection (SP/SR) approach to cognitive behaviour training through the use of reflective blogs.

    Science.gov (United States)

    Farrand, Paul; Perry, Jon; Linsley, Sue

    2010-07-01

    Self-Practice/Self-Reflection (SP/SR) is increasingly beginning to feature as a central component of CBT training programmes (Bennett-Levy et al., 2001). Programmes including a reflective element, however, are not unproblematic and it has been documented that simply setting time aside for reflection does not necessarily result in trainees using such time to reflect. Such limitations may be overcome by including a requirement to post reflections on reflective blogs. To examine the effect that a requirement to contribute to a reflective blog had upon a SP/SR approach to CBT training. A focus group methodology was adopted with data analyzed using a general inductive qualitative approach. The requirement to use blogs to reflect upon the self-practice of CBT techniques enhanced SP/SR, established a learning community, and improved course supervision, although some technical difficulties arose. Consideration should be given towards using reflective blogs to support a SP/SR approach to CBT training. Benefits afforded by the use of reflective blogs further establish SP/SR as a valid and flexible training approach.

  6. Molecular characterization of a CpTRIM35-like protein and its splice variants from whitespotted bamboo shark (Chiloscyllium plagiosum)

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Xinshang, E-mail: sanmaosound@163.com; Zhao, Heng, E-mail: hengzhao2000@gmail.com; Chen, Yeyu, E-mail: cyyleaf@126.com; Luo, Huiying, E-mail: luohuiying@caas.cn; Yao, Bin, E-mail: binyao@caas.cn

    2014-10-24

    Highlights: • A TRIM gene and three splice variants were firstly cloned from elasmobranch fish. • The genes were constitutively expressed with high levels in spleen and kidney. • The gene products were distributed in cytoplasm alone or cytoplasm and nucleus. • As E3 ubiquitin ligases, the proteins differed in immune responses to challenges. - Abstract: The tripartite motif (TRIM) proteins play important roles in a broad range of biological processes, including apoptosis, cell proliferation and innate immunity response. In this study, a TRIM gene and its three splice variants were cloned from an elasmobranch fish—whitespotted bamboo shark (Chiloscyllium plagiosum Bennett). Phylogenetic analysis indicated that the gene was closely related to TRIM35 homologs, thus termed CpTRIM35-like. Deduced CpTRIM35 has a RBCC-PRY/SPRY structure typical of TRIM proteins, and its splice variants (CpTRIM35-1–3) have different truncations at the C-terminus. The gene products were constitutively expressed in adult sharks with the highest levels in spleen and kidney. The different subcellular locations, upregulation upon LPS and poly I:C stimulation, and significant E3 ubiquitin ligase activities suggested their different roles in immune responses as an E3 ubiquitin ligase. This is the first TRIM protein ever characterized in elasmobranch fish.

  7. Effects of T'ai Chi exercise on fibromyalgia symptoms and health-related quality of life.

    Science.gov (United States)

    Taggart, Helen M; Arslanian, Christine L; Bae, Sejong; Singh, Karan

    2003-01-01

    Fibromyalgia (FM), one of the most common musculoskeletal disorders, is associated with high levels of impaired health and inadequate or limited symptom relief. The cause of this complex syndrome is unknown, and there is no known cure. Numerous research results indicate that a combination of physical exercise and mind-body therapy is effective in symptom management. T'ai Chi, an ancient Chinese exercise, combines physical exercise with mindbody therapy. To investigate the effects of T'ai Chi exercise on FM symptoms and health-related quality of life. Pilot study, one group pre-to-post posttest design. Participants with FM (n = 39) formed a single group for 6 weeks of 1-hour, twice weekly T'ai Chi exercise classes. FM symptoms and health-related quality of life were measured before and after exercise. Twenty-one participants completed at least 10 of the 12 exercise sessions. Although the dropout rate was higher than expected, measurements on both the Fibromyalgia Impact Questionnaire (FIQ) (Buckhardt, Clark, & Bennett, 1991) and the Short Form-36 (SE-36) (Ware & Sherbourne, 1992) revealed statistically significant improvement in symptom management and health-related quality of life. Knowledge of interventions to enhance health for the patient with musculoskeletal problems is a National Association of Orthopaedic Nurses priority. Tai Chi is potentially beneficial to patients with FM. Further research is needed to support evidence-based practice.

  8. The Structural Model of Psychological Contract Violation, Organizational Commitment, Turnover, Job Satisfaction and Deviant Behaviors

    Directory of Open Access Journals (Sweden)

    M. Golparvar

    2014-12-01

    Full Text Available This research was conducted with the purpose of studying the structural model of the relationships of psychological contract violation with organizational commitment, turnover, job satisfaction and deviant behaviors. Research method was correlation and the statistical population were male employees of an industrial company in Shiraz city, from among which 300 employees were selected using convenience sampling. Assessment instruments consisted of Psychological Contract Violation Questionnaire (Tekleab etal, 2005, Organizational Commitment Questionnaire (Speier & Vankatesh, 2002, Job Satisfaction Questionnaire (Spector, 1985, Turnover Questionnaire (Tekleab etal, 2005 and Deviant Behavior Questionnaire (Bennett & Robinson, 2000. Data was analyzed using Pearson’s correlation coefficient, structure equation modeling (SEM and mediation analysis. Findings showed that psychological contract violation explained 7.1 percent of organizational commitment variance, organizational commitment and job satisfaction explained 16.7 percent of turnover variance, organizational commitment explained 20.3 percent of job satisfaction variance and turnover explained 4.3 percent of deviant behavior variance. Mediation analysis showed that organizational commitment played the complete mediator variable in the relation of psychological contract violation with job satisfaction and job satisfaction was the partial mediator variable in the relation of organizational commitment with turnover. Finally with regard to the limitation of generalization of current research results it is suggested to industrial organizations that they should not violate their obligations to employees in anyway.

  9. Political communication research: New media, new challenges, and new opportunities

    Directory of Open Access Journals (Sweden)

    Rasmus Kleis Nielsen

    2014-06-01

    Full Text Available The rise of new media and the broader set of social changes they are part of present political communication research with new challenges and new opportunities at a time when many think the field is at an intellectual impasse (e.g., Bennett & Iyengar, 2008. In this article, I argue that parts of the field’s problems are rooted in the way in which political communication research has developed since the 1960s. In this period, the field has moved from being interdisciplinary and mixed-methods to being more homogenous and narrowly focused, based primarily on ideas developed in social psychology, certain strands of political science, and the effects-tradition of mass communication research. This dominant paradigm has contributed much to our understanding of some aspects of political communication. But it is struggling to make sense of many others, including questions concerning people’s experience of political communication processes and questions concerning the symbolic, institutional, and technological nature of these processes—especially during a time of often rapid change. To overcome this problem, I argue that the field of political communication research should re-engage with the rest of media and communication studies and embrace a broader and more diverse agenda. I discuss audience research and journalism studies as examples of adjacent fields that use a more diverse range of theoretical and methodological tools that might help political communication research engage with new media and the new challenges and new opportunities for research that they represent.

  10. High-efficiency high-energy Ka source for the critically-required maximum illumination of x-ray optics on Z using Z-petawatt-driven laser-breakout-afterburner accelerated ultrarelativistic electrons LDRD .

    Energy Technology Data Exchange (ETDEWEB)

    Sefkow, Adam B.; Bennett, Guy R.

    2010-09-01

    Under the auspices of the Science of Extreme Environments LDRD program, a <2 year theoretical- and computational-physics study was performed (LDRD Project 130805) by Guy R Bennett (formally in Center-01600) and Adam B. Sefkow (Center-01600): To investigate novel target designs by which a short-pulse, PW-class beam could create a brighter K{alpha} x-ray source than by simple, direct-laser-irradiation of a flat foil; Direct-Foil-Irradiation (DFI). The computational studies - which are still ongoing at this writing - were performed primarily on the RedStorm supercomputer at Sandia National Laboratories Albuquerque site. The motivation for a higher efficiency K{alpha} emitter was very clear: as the backlighter flux for any x-ray imaging technique on the Z accelerator increases, the signal-to-noise and signal-to-background ratios improve. This ultimately allows the imaging system to reach its full quantitative potential as a diagnostic. Depending on the particular application/experiment this would imply, for example, that the system would have reached its full design spatial resolution and thus the capability to see features that might otherwise be indiscernible with a traditional DFI-like x-ray source. This LDRD began FY09 and ended FY10.

  11. Computation of Hydration Free Energies Using the Multiple Environment Single System Quantum Mechanical/Molecular Mechanical Method.

    Science.gov (United States)

    König, Gerhard; Mei, Ye; Pickard, Frank C; Simmonett, Andrew C; Miller, Benjamin T; Herbert, John M; Woodcock, H Lee; Brooks, Bernard R; Shao, Yihan

    2016-01-12

    A recently developed MESS-E-QM/MM method (multiple-environment single-system quantum mechanical molecular/mechanical calculations with a Roothaan-step extrapolation) is applied to the computation of hydration free energies for the blind SAMPL4 test set and for 12 small molecules. First, free energy simulations are performed with a classical molecular mechanics force field using fixed-geometry solute molecules and explicit TIP3P solvent, and then the non-Boltzmann-Bennett method is employed to compute the QM/MM correction (QM/MM-NBB) to the molecular mechanical hydration free energies. For the SAMPL4 set, MESS-E-QM/MM-NBB corrections to the hydration free energy can be obtained 2 or 3 orders of magnitude faster than fully converged QM/MM-NBB corrections, and, on average, the hydration free energies predicted with MESS-E-QM/MM-NBB fall within 0.10-0.20 kcal/mol of full-converged QM/MM-NBB results. Out of five density functionals (BLYP, B3LYP, PBE0, M06-2X, and ωB97X-D), the BLYP functional is found to be most compatible with the TIP3P solvent model and yields the most accurate hydration free energies against experimental values for solute molecules included in this study.

  12. Programmable motion of DNA origami mechanisms.

    Science.gov (United States)

    Marras, Alexander E; Zhou, Lifeng; Su, Hai-Jun; Castro, Carlos E

    2015-01-20

    DNA origami enables the precise fabrication of nanoscale geometries. We demonstrate an approach to engineer complex and reversible motion of nanoscale DNA origami machine elements. We first design, fabricate, and characterize the mechanical behavior of flexible DNA origami rotational and linear joints that integrate stiff double-stranded DNA components and flexible single-stranded DNA components to constrain motion along a single degree of freedom and demonstrate the ability to tune the flexibility and range of motion. Multiple joints with simple 1D motion were then integrated into higher order mechanisms. One mechanism is a crank-slider that couples rotational and linear motion, and the other is a Bennett linkage that moves between a compacted bundle and an expanded frame configuration with a constrained 3D motion path. Finally, we demonstrate distributed actuation of the linkage using DNA input strands to achieve reversible conformational changes of the entire structure on ∼ minute timescales. Our results demonstrate programmable motion of 2D and 3D DNA origami mechanisms constructed following a macroscopic machine design approach.

  13. Programmable motion of DNA origami mechanisms

    Science.gov (United States)

    Marras, Alexander E.; Zhou, Lifeng; Su, Hai-Jun; Castro, Carlos E.

    2015-01-01

    DNA origami enables the precise fabrication of nanoscale geometries. We demonstrate an approach to engineer complex and reversible motion of nanoscale DNA origami machine elements. We first design, fabricate, and characterize the mechanical behavior of flexible DNA origami rotational and linear joints that integrate stiff double-stranded DNA components and flexible single-stranded DNA components to constrain motion along a single degree of freedom and demonstrate the ability to tune the flexibility and range of motion. Multiple joints with simple 1D motion were then integrated into higher order mechanisms. One mechanism is a crank–slider that couples rotational and linear motion, and the other is a Bennett linkage that moves between a compacted bundle and an expanded frame configuration with a constrained 3D motion path. Finally, we demonstrate distributed actuation of the linkage using DNA input strands to achieve reversible conformational changes of the entire structure on ∼minute timescales. Our results demonstrate programmable motion of 2D and 3D DNA origami mechanisms constructed following a macroscopic machine design approach. PMID:25561550

  14. Analysis of Nurses’ Organizational Deviant Behaviour: An Example of a University Hospital

    Directory of Open Access Journals (Sweden)

    Gamze Bayın

    2014-09-01

    Full Text Available Organizational deviant behavior is defined as intentionally behavior which is damaging both employees and organization and unsuitable to organization rules, norms, values, expectations and legal regulations.The aim of this study is to determine the level of organizational deviance of nurses, to expose differentiates of this level. according to the descriptive characteristics, to detect the dimensions of organizational deviance and to evaluate the relationship between these dimensions. Population of the study is nurses working at a University Hospital in Ankara. The sample is not selected and tried to reach all the nurses working at this hospital. However, 244 nurses were reached (%48,12. To measure organizational deviance, “Measure of Workplace Deviance Items”which was developed by Bennett and Robinson (2000was used. This scale consists from 15 expressions and 2 dimensions and its’ Cronbach's alpha coefficient was 0,94. As a result of the study, the mean score of nurses’ organizational deviance was found 1.85 ± 0.718. In addition, statistically significant, positive and moderately strong correlation was found between the two dimensions of organizational deviance (R= 0.701 . It can be suggested that health care managers should identify reasons and the ways of preventing of individual deviant behaviour. Thus, managers may prevent behaviour of deviation to the organization.

  15. The POLPSA lesion: MR imaging findings with arthroscopic correlation in patients with posterior instability

    International Nuclear Information System (INIS)

    Yu, Joseph S.; Ashman, Carol J.; Jones, Grant

    2002-01-01

    Objective. To evaluate the features of the posterior labrocapsular periosteal sleeve avulsion (POLPSA) lesion on MR imaging in athletes with posterior shoulder instability.Design and patients. Six male athletes (age range 19-43 years) with avulsion of the posterior glenoid periosteum were identified on MR imaging. There were four football players, one wrestler, and one competitive weightlifter. The weightlifter had a bilateral condition so that seven shoulders were evaluated. MR imaging was performed with a 1.5 T magnet utilizing conventional and fat-saturated fast spin-echo coronal oblique and sagittal oblique sequences and a 3D-GRE transaxial sequence. Surgical correlation was available in all shoulders.Results. All patients presented with pain and a joint effusion. The size of the periosteal sleeve and redundant joint recess was variable. Fibrous proliferation was noted arthroscopically in four shoulders beneath the sleeve. Although the posterior labrum was detached in all studies, only one labrum had a tear while two showed marked degeneration.Conclusion. The POLPSA lesion is an abnormality that can be associated with posterior instability. It differs from a reverse Bankart lesion because the periosteum, although detached, remains intact with the posterior capsule and detached posterior labrum. This lesion may represent an acute form of a Bennett lesion. (orig.)

  16. The study of a plasma jet injected by an on-board plasma thruster

    International Nuclear Information System (INIS)

    Grebnev, I.A.; Ivanov, G.V.; Khodnenko, V.P.

    1981-01-01

    The injection of a steady plasma jet into the ionosphere results in interactions which were studied in experiments conducted onboard two Meteor satellites in 1977-1979. The jet parameters at the propulsion system output were as follows: propulsive mass: Xe Xe (+) ion density at the nozzle section 3 x 10 to the 11th per cu cm plasma stream divergence: 20 degrees jet velocity: 10-12 km/cm ion energy: 130 eV electron temperature: 1 + 3 eV. A Bennett-type modified radio-frequency mass-spectrometer and a two-channel electromagnetic wave analyzer were used for the measurements. It was found that (1) the injected plasma jet propagation depends on the jet injection pitch angle (2) when the plasma jet was injected along the magnetic field, impactless jet spreading took place without considerable interaction with the ionospheric plasma (3) when the plasma jet was injected across the magnetic field, considerable interaction was observed between the plasma jet/ionospheric plasma and the earth's magnetic field and (4) electromagnetic fields were generated near the satellite by plasma jet interaction

  17. Converging ligand‐binding free energies obtained with free‐energy perturbations at the quantum mechanical level

    Science.gov (United States)

    Olsson, Martin A.; Söderhjelm, Pär

    2016-01-01

    In this article, the convergence of quantum mechanical (QM) free‐energy simulations based on molecular dynamics simulations at the molecular mechanics (MM) level has been investigated. We have estimated relative free energies for the binding of nine cyclic carboxylate ligands to the octa‐acid deep‐cavity host, including the host, the ligand, and all water molecules within 4.5 Å of the ligand in the QM calculations (158–224 atoms). We use single‐step exponential averaging (ssEA) and the non‐Boltzmann Bennett acceptance ratio (NBB) methods to estimate QM/MM free energy with the semi‐empirical PM6‐DH2X method, both based on interaction energies. We show that ssEA with cumulant expansion gives a better convergence and uses half as many QM calculations as NBB, although the two methods give consistent results. With 720,000 QM calculations per transformation, QM/MM free‐energy estimates with a precision of 1 kJ/mol can be obtained for all eight relative energies with ssEA, showing that this approach can be used to calculate converged QM/MM binding free energies for realistic systems and large QM partitions. © 2016 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc. PMID:27117350

  18. Perceived Peer and Parent Out-Group Norms, Cultural Identity, and Adolescents' Reasoning About Peer Intergroup Exclusion.

    Science.gov (United States)

    Brenick, Alaina; Romano, Kelly

    2016-09-01

    Cultural group identity and group norms are significantly related to social exclusion evaluations (Bennett, ). This study examined 241 Jewish-American mid (M = 14.18 years, SD = 0.42) to late (M = 17.21 years, SD = 0.43; MageTOTAL  = 15.54 years, SD = 1.57) adolescents' cultural identities and contextually salient perceived group norms in relation to their evaluations of Arab-American inclusion and exclusion across two contexts (peers vs. family at home). Results suggest that perceived group norms are related to the context in which they are applied: parents in the home and peers in the peer context. Peers remained a significant source of perceived group norms in the home context. Significant interactions emerged between perceived parent group norms and cultural identity. Findings highlight the need to address group-specific norms by context to ensure maximum effectiveness for intergroup interventions. © 2016 The Authors. Child Development © 2016 Society for Research in Child Development, Inc.

  19. Advances in crosshole seismic instrumentation for dam safety monitoring

    Energy Technology Data Exchange (ETDEWEB)

    Anderlini, G.; Anderlini, C. [BC Hydro, Burnaby, BC (Canada); Taylor, R. [RST Instruments Ltd., Coquitlam, BC (Canada)

    2009-07-01

    Since 1996, crosshole shear wave velocity measurements have been performed annually at the WAC Bennett Dam in order to monitor the performance of the dam core and integrity of the 1997 sinkhole repairs. As the testing showed to be responsive to embankment conditions and capable of detecting subtle changes, the testing program was expanded to include the development of an electrical shear wave source capable of carrying out crosshole seismic testing in Mica and Revelstoke Dams over distances of 100 metres and depths of 250 metres. This paper discussed the development and capabilities of the crosshole seismic instrumentation and presented preliminary results obtained during initial testing. Specific topics that were discussed included conventional crosshole seismic equipment; design basics; description of new crosshole seismic equipment; and automated in-situ crosshole seismic system (ACSS) system description and operation. It was concluded that the ACSS and accompanying electrical shear wave source, developed as part of the project, has advanced and improved on traditional crosshole seismic equipment. 7 refs., 9 figs.

  20. Validez convergente y discriminante del Inventario de Cociente Emocional (EQ-i

    Directory of Open Access Journals (Sweden)

    Evangelina Regner

    2008-01-01

    Full Text Available Desde la aparición del constructo de inteligencia emocional (Salovey & Mayer, 1990 el campo de las habilidades emocionales se ha ido ampliando notablemente, debido a la apa rición de diferentes conceptualizaciones, teorías e instrumentos de medición. Los desarrollos actuales se han centrado en el estudio de la validez de las pruebas utilizadas para medir la inteligencia emocional. El objetivo de la investigación que se informa fue estudiar la validez convergente y discriminante del Inventario de Cociente Emocional (EQ-i de Bar-On (1997a, 1997b en una muestra argentina de 100 personas adultas. Los instrumentos aplicados fueron: el EQ-i, el Inventario Re visado de Personalidad NEO (NEO PI-R de Costa y Mc Crae (1992 y la Prueba de Inteligencia o de Razonamiento Ver bal (RV de Bennett, Seashore y Wesman (1992. Para analizar los datos se realizaron correlaciones entre el EQ-i, el NEO PI-R y RV y regresiones múltiples por pasos sucesivos entre los factores de personalidad del NEO PI-R y las escalas de inteligencia emocional del EQ-i...

  1. A new methodology based on the two-region model and microscopic noise analysis techniques for absolute measurements of betaeff, Λ and betaeff/Λ of the IPEN-MB-01 reactor

    International Nuclear Information System (INIS)

    Kuramoto, Renato Yoichi Ribeiro

    2007-01-01

    A new method for absolute measurement of the effective delayed neutron fraction, beta eff based on microscopic noise experiments and the Two-Region Model was developed at the IPEN/MB-01 Research Reactor facility. In contrast with other techniques like the Modified Bennett Method, Nelson-Number Method and 252 Cf-Source Method, the main advantage of this new methodology is to obtain the effective delayed neutron parameters in a purely experimental way, eliminating all parameters that are difficult to measure or calculate. In this way, Rossi-a and Feynman-a experiments for validation of this method were performed at the IPEN/MB-01 facility, and adopting the present approach, beta eff was measured with a 0.67% uncertainty. In addition, the prompt neutron generation time, A, and other parameters were also obtained in an absolute experimental way. In general, the final results agree well with values from frequency analysis experiments. The theory-experiment comparison reveals that JENDL-3.3 shows deviation for beta eff lower than 1% which meets the desired accuracy for the theoretical determination of this parameter. This work supports the reduction of the 235 U thermal yield as proposed by Okajima and Sakurai. (author)

  2. The feasibility of Backfilling a Repository of Spent Fuel: An Assessment of Recent Developments by SKB

    Energy Technology Data Exchange (ETDEWEB)

    Bennett, David (TerraSalus Limited, Rutland (United Kingdom))

    2010-12-15

    In the Review Statement and Evaluation of SKB's RDandD programme 2007 (SKI Report 2008:48E), the former Swedish Nuclear Power Inspectorate (SKI) commented that considerable work remained to be done for knowledge of both practical management issues on backfilling and analysis of long-term backfill evolution to reach the same level as for the canister and the buffer. SKI considered that the backfill material had not been thoroughly reported in the RDandD programme. More concrete plans were also needed relating to large-scale demonstration experiments to investigate the performance of the backfill in as realistic conditions as possible. In the spring of 2009, noting that SKB had changed its concept for backfilling several times over the last few years, and after having visited SKB's most recent backfilling trials at Aespoe, both SSM and SSM's expert group BRITE had strong concerns regarding SKB's programme for backfilling the repository tunnels. Although the BRITE expert group has been keeping a watching brief over SKB's development work on backfilling, SSM has not undertaken a systematic assessment of SKB's work in this area since the SR-Can Safety Report was reviewed in 2006. Dr David Bennett, a member and secretary of the BRITE expert group, was asked to do such an assessment. This report describes the assessment results

  3. Critical thinking in the intercultural context: Investigating EFL textbooks

    Directory of Open Access Journals (Sweden)

    Paweł Sobkowiak

    2016-12-01

    Full Text Available The multicultural world has made intercultural teaching necessary. It should focus on students’ ability to comprehend quickly and accurately, and then act appropriately and effectively in a culturally complex environment in order to achieve the desired goal. Intercultural competence is important for successful communication across cultures, and so is critical thinking since the two, if they are not “parallel” (Bennett, 2013, at least overlap (Deardorff, 2009. This article tries to shed light on the linkage between intercultural and critical thinking skills and reports on the findings of research done on whether and to what extent EFL textbooks used in Polish schools contribute to fostering critical thinking skills in students. The study analyzed the cultural content of 20 coursebooks to check whether they go beyond merely depicting the target culture, or various foreign cultures, and involve students in practicing critical thinking, that is, prompt them to explore intercultural encounters and processes, and scrutinize how diverse cultures influence their own understanding of reality. The research revealed an insignificant and limited capacity of the textbooks to develop students’ critical thinking.

  4. Evaluation of Hanau's formula in determination of lateral condylar guidance: A clinical research study

    Science.gov (United States)

    Bhawsar, Sanjay Vasant; Marathe, Ashlesha Subhash; Ansari, Sadekh Abdul

    2015-01-01

    Statement of Problem: The accuracy and reliability of the methods used for programming the semi-adjustable articulators determine the accuracy in occlusion. The current recommended average settings using the Hanau's formula commonly used by clinicians is questionable, and thus reassessment is needed. This study was carried out to evaluate and compare the lateral condylar guidance: (1) Using the Hanau's formula and the computerized jaw tracking device (Kinesiograph). (2) On the right and left sides using both these methods. Materials and Methods: A total of 20 completely edentulous patients (14 male and 6 females) within 40–60 years of age were selected. Jaw relation was recorded followed by face bow transfer. Extraoral Gothic arch tracing was recorded; three protrusive records were obtained and condylar guidance was calculated. Lateral condylar guidance was then calculated using Hanau's formula, followed by the computerized jaw tracking device. A comparative evaluation was done of the obtained values. The same investigator worked with each of the study participants for the purpose of standardization. Results: The lateral condylar guidance values obtained using the Hanau's formula ranged from 14 to 17° while those obtained using the computerized K7 jaw tracking device ranged from 8 to 40°. Bennett angle values, obtained using the jaw tracking device and Hanau's formula showed statistically significant differences (P 0.05). Conclusion: Based on the results, dentist and dental technicians should consider reassessing the current recommended average settings and use of the Hanau's formula for programming the semi-adjustable articulators. PMID:26929535

  5. Parameter scaling toward high-energy density in a quasi-steady flow Z-pinch

    Science.gov (United States)

    Hughes, M. C.; Shumlak, U.; Nelson, B. A.; Golingo, R. P.; Claveau, E. L.; Doty, S. A.; Forbes, E. G.; Kim, B.; Ross, M. P.

    2016-10-01

    Sheared axial flows are utilized by the ZaP Flow Z-Pinch Experiment to stabilize MHD instabilities. The pinches formed are 50 cm long with radii ranging from 0.3 to 1.0 cm. The plasma is generated in a coaxial acceleration region, similar to a Marshall gun, which provides a steady supply of plasma for approximately 100 us. The power to the plasma is partially decoupled between the acceleration and pinch assembly regions through the use of separate power supplies. Adiabatic scaling of the Bennett relation gives targets for future devices to reach high-energy density conditions or fusion reactors. The applicability of an adiabatic assumption is explored and work is done experimentally to clarify the plasma compression process, which may be more generally polytropic. The device is capable of a much larger parameter space than previous machine iterations, allowing flexibility in the initial conditions of the compression process to preserve stability. This work is supported by DoE FES and NNSA.

  6. Preventing Prescription Drug Misuse in Work Settings: Efficacy of a Brief Intervention in Health Consciousness.

    Science.gov (United States)

    Lucas, Gale; Neeper, Michael; Linde, Brittany; Bennett, Joel

    2017-07-06

    It is becoming more commonplace for employees to use prescription medication outside of intended use. Opioid and other prescription misuse has implications for the health and productivity of workers. Easy-to-access webinars that help employees learn about alternatives to prescription use may decrease risk. The aim of this study was to examine the efficacy of an interactive but brief health consciousness and prescription drug intervention for a diverse sample of employees and show effectiveness via both Internet-delivered webinar and classroom delivery. Employees from a variety of workplaces filled out pre- and post-questionnaires upon completion of a one-hour long intervention. A total of 114 participants completed the pre- and post-questionnaires. Results showed that, compared with before the training, participants reported significantly more knowledge about prescription drug misuse and alternatives to prescription drug use after the training (t 113 =7.91, P<.001). Moreover, the medium of presentation (ie, face-to-face vs webinar) did not significantly impact effectiveness of the training (F 1,98 =1.15, P=.29). In both webinar and classroom formats, participants gained knowledge about alternatives to prescription drug use. This intervention appears to be beneficial to employees and assists in the awareness of prescription drug use in general and in the workplace. ©Gale Lucas, Michael Neeper, Brittany Linde, Joel Bennett. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 06.07.2017.

  7. Motor sport in France: testing-ground for the world.

    Science.gov (United States)

    Cofaigh, Eamon O

    2011-01-01

    The birth of the automobile in the late nineteenth century was greeted with a mixture of awe, scepticism and sometimes even disdain from sections of the European public. In this article, the steps taken in France to pioneer and promote this new invention are examined. Unreliable and noisy, the early automobile owes a debt of gratitude to the French aristocracy who organised and codified motor racing in an effort to test these new inventions while at the same time introduce them to a wider public. City-to-city races demonstrated the potential of the automobile before the initiative of Gordon Bennett proved to be the catalyst for the birth of international motor sport as we recognise it today. Finally this article looks at the special connection between Le Mans and the automobile. Le Mans has, through its 24-hour race, maintained a strong link with the development of everyday automobile tourism and offers the enthusiast an alternative to the machines that reach incredible speeds on modern-day closed circuits. This article examines how French roads were veritable testing grounds for the earliest cars and how the public roads of Le Mans maintain the tradition to this day.

  8. Crystalline lens power and refractive error.

    Science.gov (United States)

    Iribarren, Rafael; Morgan, Ian G; Nangia, Vinay; Jonas, Jost B

    2012-02-01

    To study the relationships between the refractive power of the crystalline lens, overall refractive error of the eye, and degree of nuclear cataract. All phakic participants of the population-based Central India Eye and Medical Study with an age of 50+ years were included. Calculation of the refractive lens power was based on distance noncycloplegic refractive error, corneal refractive power, anterior chamber depth, lens thickness, and axial length according to Bennett's formula. The study included 1885 subjects. Mean refractive lens power was 25.5 ± 3.0 D (range, 13.9-36.6). After adjustment for age and sex, the standardized correlation coefficients (β) of the association with the ocular refractive error were highest for crystalline lens power (β = -0.41; P lens opacity grade (β = -0.42; P lens power (β = -0.95), lower corneal refractive power (β = -0.76), higher lens thickness (β = 0.30), deeper anterior chamber (β = 0.28), and less marked nuclear lens opacity (β = -0.05). Lens thickness was significantly lower in eyes with greater nuclear opacity. Variations in refractive error in adults aged 50+ years were mostly influenced by variations in axial length and in crystalline lens refractive power, followed by variations in corneal refractive power, and, to a minor degree, by variations in lens thickness and anterior chamber depth.

  9. The Impact of Occupational Stress on Job Satisfaction and Counterproductive Work Behaviour

    Directory of Open Access Journals (Sweden)

    Horia D. Pitariu

    2009-01-01

    Full Text Available The present economical challenges increase the level of demand and pressure on people in their workplaces, eventually affecting the efficiency of organizations. Given the relationship between job strain and individual and organizational outcomes (Robertson, 2009, the present context places an even higher importance on understanding and dealing correctly with these issues. The research at hand examines the predictive value of different occupational sources of pressure on job satisfaction and counterproductive work behaviour, using an occupational sample in the financial services field. The participants were asked to complete two questionnaires: OSI-90 (Cooper, Sloan & Williams, 1996 and Workplace Deviance Scale (Bennett & Robinson, 2000. The results indicate that stressors related to the organizational climate, the work relationships, organizational hassles and workload predict counterproductive work behaviour. Furthermore, job satisfaction was positively related to the high quality of the work relationship and low levels of tension in the organizational climate and hassles, while the level of satisfaction with the organization was associated with the work-family balance and the organizational climate. Implications for developing programs that help employees effectively cope with these sources of stress as well as recommendations for developing healthier organizations are discussed.

  10. Continuous intra-arterial blood-gas monitoring

    Science.gov (United States)

    Divers, George A.; Riccitelli, Samuel D.; Blais, Maurice; Hui, Henry K.

    1993-05-01

    Fiber optic technology and optical fluorescence have made the continuous monitoring of arterial blood gases a reality. Practical products that continuously monitor blood gases by use of an invasive sensor are now available. Anesthesiologists and intensive care physicians are beginning to explore the practical implications of this technology. With the advent of intra- arterial blood gas monitors it is possible to assess arterial blood gas values without the labor intensive steps of drawing blood and transporting a blood sample to the lab followed by the actual analysis. These intra-arterial blood gas monitors use new optical sensor technologies that can be reduced in size to the point that the sensor can be inserted into the arterial blood flow through a 20-gauge arterial cannula. In the best of these technologies the sensors accuracy and precision are similar to those in vitro analyzers. This presentation focuses on background technology and in vivo performance of a device developed, manufactured, and marketed by Puritan-Bennett Corporation.

  11. Image enhancement by using IDL for a mammographic x-ray image in Medical Physics Laboratory

    International Nuclear Information System (INIS)

    Asmaliza Hashim; Md Saion Salikin; Wan Hazlinda Ismail; Norriza Mohd Isa; Azuhar Ripin

    2004-01-01

    Digital image enhancement technique can have a significant impact on the diagnostic quality of a radiographic image. The main aim of image enhancement is to process the image so that the enhanced image is clearer and more useful for specific application. There are three types of image enhancement namely noise reduction, edge enhancement and contrast enhancement. The objective of this project is to enhance the mammographic image by using Interactive Data Language (IDL) software in spatial and frequency domain by using various methods. In spatial domain method, direct manipulation of pixel in an image is used whereas, in frequency domain method, modifying the spectral component or Fourier Transform of an image is used In order to obtain the good quality mammographic image, breast phantom Model 12A with 4.0 cm compressed thickness and Bennett Model DMF- 150 Mammography Machine with various kV and mA are employed. The results of enhanced image with selected technique by using IDL are presented in this paper. (Author)

  12. Evaluation of a cross-cultural training program for Pakistani educators: Lessons learned and implications for program planning.

    Science.gov (United States)

    Mazur, Rebecca; Woodland, Rebecca H

    2017-06-01

    In this paper, we share the results of a summative evaluation of PEILI, a US-based adult professional development/training program for secondary school Pakistani teachers. The evaluation was guided by the theories of cultural competence (American Psychological Association, 2003; Bamberger, 1999; Wadsworth, 2001) and established frameworks for the evaluation of professional development/training and instructional design (Bennett, 1975; Guskey, 2002; King, 2014; Kirkpatrick, 1967). The explicit and implicit stakeholder assumptions about the connections between program resources, activities, outputs, and outcomes are described. Participant knowledge and skills were measured via scores on a pre/posttest of professional knowledge, and a standards-based performance assessment rubric. In addition to measuring short-term program outcomes, we also sought to incorporate theory-driven thinking into the evaluation design. Hence, we examined participant self-efficacy and access to social capital, two evidenced-based determinants or "levers" that theoretically explain the transformative space between an intervention and its outcomes (Chen, 2012). Data about program determinants were collected and analyzed through a pre/posttest of self-efficacy and social network analysis. Key evaluation findings include participant acquisition of new instructional skills, increased self-efficacy, and the formation of a nascent professional support network. Lessons learned and implications for the design and evaluation of cross-cultural teacher professional development programs are discussed. Copyright © 2017 Elsevier Ltd. All rights reserved.

  13. Aviation’s Normal Operations Safety Audit: a safety management and educational tool for health care? Results of a small-scale trial

    Directory of Open Access Journals (Sweden)

    Bennett SA

    2017-08-01

    Full Text Available Simon A Bennett Civil Safety and Security Unit, School of Business, University of Leicester, Leicester, UK Background: A National Health Service (NHS contingent liability for medical error claims of over £26 billion. Objectives: To evaluate the safety management and educational benefits of adapting aviation’s Normal Operations Safety Audit (NOSA to health care. Methods: In vivo research, a NOSA was performed by medical students at an English NHS Trust. After receiving training from the author, the students spent 6 days gathering data under his supervision. Results: The data revealed a threat-rich environment, where errors – some consequential – were made (359 threats and 86 errors were recorded over 2 weeks. The students claimed that the exercise improved their observational, investigative, communication, teamworking and other nontechnical skills. Conclusion: NOSA is potentially an effective safety management and educational tool for health care. It is suggested that 1 the UK General Medical Council mandates that all medical students perform a NOSA in fulfillment of their degree; 2 the participating NHS Trusts be encouraged to act on students’ findings; and 3 the UK Department of Health adopts NOSA as a cornerstone risk assessment and management tool. Keywords: aviation, safety audit, health care, management benefits, educational benefits

  14. Rapid invasion of the Indo-Pacific lionfishes (Pterois volitans and Pterois miles) in the Florida Keys, USA: evidence from multiple pre-and post-invasion data sets

    Science.gov (United States)

    Ruttenberg, Benjamin I.; Schofield, Pamela J.; Akins, J. Lad; Acosta, Alejandro; Feeley, Michael W.; Blondeau, Jeremiah; Smith, Steven G.; Ault, Jerald S.

    2012-01-01

    Over the past decade, Indo-Pacific lionfishes, Pterois volitans (Linnaeus, 1758) and Pterois miles (Bennett, 1828), venomous members of the scorpionfish family (Scorpaenidae), have invaded and spread throughout much of the tropical and subtropical northwestern Atlantic Ocean and Caribbean Sea. These species are generalist predators of fishes and invertebrates with the potential to disrupt the ecology of the invaded range. Lionfishes have been present in low numbers along the east coast of Florida since the 1980s, but were not reported in the Florida Keys until 2009. We document the appearance and rapid spread of lionfishes in the Florida Keys using multiple long-term data sets that include both pre- and post-invasion sampling. Our results are the first to quantify the invasion of lionfishes in a new area using multiple independent, ongoing monitoring data sets, two of which have explicit estimates of sampling effort. Between 2009 and 2011, lionfish frequency of occurrence, abundance, and biomass increased rapidly, increasing three- to six-fold between 2010 and 2011 alone. In addition, individuals were detected on a variety of reef and non-reef habitats throughout the Florida Keys. Because lionfish occurrence, abundance, and impacts are expected to continue to increase throughout the region, monitoring programs like those used in this study will be essential to document ecosystem changes that may result from this invasion.

  15. Survival and growth of invasive Indo-Pacific lionfish at low salinities

    Science.gov (United States)

    Schofield, Pamela J.; Huge, Dane H.; Rezek, Troy C.; Slone, Daniel H.; Morris, James A.

    2015-01-01

    Invasive Indo-Pacific lionfish [Pterois volitans (Linnaeus, 1758) and P. miles (Bennett, 1828)] are now established throughout the Western North Atlantic. Several studies have documented negative effects of lionfish on marine fauna including significant changes to reef fish community composition. Established populations of lionfish have been documented in several estuaries, and there is concern that the species may invade other low-salinity environments where they could potentially affect native fauna. To gain a better understanding of their low-salinity tolerance, we exposed lionfish to four salinities [5, 10, 20 and 34 (control)]. No lionfish mortality was observed at salinities of 34, 20 or 10, but all fish died at salinity = 5 within 12 days. Lionfish survived for at least a month at a salinity of 10 and an average of about a week at 5. Fish started the experiment at an average mass of 127.9 g, which increased at a rate of 0.55 g per day while they were alive, regardless of salinity treatment. Our research indicated lionfish can survive salinities down to 5 for short periods and thus may penetrate and persist in a variety of estuarine habitats. Further study is needed on effects of salinity levels on early life stages (eggs, larvae).

  16. Use of an oxygen concentrator in a Nigerian neonatal unit: economic implications and reliability.

    Science.gov (United States)

    Mokuolu, Olugbenga A; Ajayi, Oluade A

    2002-09-01

    A 3-year experience of using an oxygen concentrator in a Nigerian newborn unit and economic appraisal of its effectiveness is reported. The oxygen concentrator is a device that absorbs nitrogen from ambient air, with a resultant oxygen concentration of 85 to 95% at different flow rates. The oxygen concentrator met our oxygen needs which averaged 18 hours a day, and had a huge cost advantage over the oxygen cylinders. The cost of oxygen via cylinder for just one patient for a year exceeds the initial capital outlay for a concentrator. The Puritan-Bennett oxygen concentrator has a lifespan of at least 7 years and is virtually maintenance-free for the 1st 26,400 hours of use, after which some major components might need replacement. We conclude that in developing countries oxygen concentrators are a more cost-effective, reliable and convenient means of oxygen supply than oxygen cylinders, and recommend their use where there is a high demand for oxygen.

  17. The feasibility of Backfilling a Repository of Spent Fuel: An Assessment of Recent Developments by SKB

    International Nuclear Information System (INIS)

    Bennett, David

    2010-12-01

    In the Review Statement and Evaluation of SKB's RDandD programme 2007 (SKI Report 2008:48E), the former Swedish Nuclear Power Inspectorate (SKI) commented that considerable work remained to be done for knowledge of both practical management issues on backfilling and analysis of long-term backfill evolution to reach the same level as for the canister and the buffer. SKI considered that the backfill material had not been thoroughly reported in the RDandD programme. More concrete plans were also needed relating to large-scale demonstration experiments to investigate the performance of the backfill in as realistic conditions as possible. In the spring of 2009, noting that SKB had changed its concept for backfilling several times over the last few years, and after having visited SKB's most recent backfilling trials at Aespoe, both SSM and SSM's expert group BRITE had strong concerns regarding SKB's programme for backfilling the repository tunnels. Although the BRITE expert group has been keeping a watching brief over SKB's development work on backfilling, SSM has not undertaken a systematic assessment of SKB's work in this area since the SR-Can Safety Report was reviewed in 2006. Dr David Bennett, a member and secretary of the BRITE expert group, was asked to do such an assessment. This report describes the assessment results

  18. Holocene footprints in Namibia: the influence of substrate on footprint variability.

    Science.gov (United States)

    Morse, Sarita A; Bennett, Matthew R; Liutkus-Pierce, Cynthia; Thackeray, Francis; McClymont, Juliet; Savage, Russell; Crompton, Robin H

    2013-06-01

    We report a Holocene human and animal footprint site from the Namib Sand Sea, south of Walvis Bay, Namibia. Using these data, we explore intratrail footprint variability associated with small variations in substrate properties using a "whole foot" analytical technique developed for the studies in human ichnology. We demonstrate high levels of intratrail variability as a result of variations in grain size, depositional moisture content, and the degree of sediment disturbance, all of which determine the bearing capacity of the substrate. The two principal trails were examined, which had consistent stride and step lengths, and as such variations in print typology were primarily controlled by substrate rather than locomotor mechanics. Footprint typology varies with bearing capacity such that firm substrates show limited impressions associated with areas of peak plantar pressure, whereas softer substrates are associated with deep prints with narrow heels and reduced medial longitudinal arches. Substrates of medium bearing capacity give displacement rims and proximal movement of sediment, which obscures the true form of the medial longitudinal arch. A simple conceptual model is offered which summarizes these conclusions and is presented as a basis for further investigation into the control of substrate on footprint typology. The method, model, and results presented here are essential in the interpretation of any sites of greater paleoanthropological significance, such as recently reported from Ileret (1.5 Ma, Kenya; Bennett et al.: Science 323 (2009) 1197-1201). Copyright © 2013 Wiley Periodicals, Inc.

  19. Making the Case for Middlebrow Culture

    Directory of Open Access Journals (Sweden)

    Belinda Edmondson

    2010-03-01

    Full Text Available

    It is commonly assumed that Caribbean culture is split into elite highbrow culture—which is considered derivative of Europe and not rooted in the Caribbean—and authentic working-class culture, which is often identified with such iconic island activities as salsa, carnival, calypso, and reggae. In Caribbean Middlebrow, Belinda Edmondson recovers a middle ground, a genuine popular culture in the English-speaking Caribbean that stretches back into the nineteenth century. Edmondson shows that popular novels, beauty pageants, and music festivals are examples of Caribbean culture that are mostly created, maintained, and consumed by the Anglophone middle class. Much of middle-class culture, she finds, is further gendered as "female": women are more apt to be considered recreational readers of fiction, for example, and women's behavior outside the home is often taken as a measure of their community's respectability. Edmondson also highlights the influence of American popular culture, especially African American popular culture, as early as the nineteenth century. This is counter to the notion that the islands were exclusively under the sway of British tastes and trends. She finds the origins of today's "dub" or spoken-word Jamaican poetry in earlier traditions of genteel dialect poetry-as exemplified by the work of the Jamaican folklorist, actress, and poet Louise "Miss Lou" Bennett Coverley-and considers the impact of early Caribbean novels including Emmanuel Appadocca (1853 and Jane's Career (1913.

  20. Space and time resolved observations of plasma dynamics in a compressional gas embedded Z-pinch

    International Nuclear Information System (INIS)

    Soto, L.; Chuaqui, H.; Favre, M.; Saavedra, R.; Wyndham, E.; Aliaga-Rossel, R.; Mitchell, I.

    1996-01-01

    Recent experiments in a gas embedded compressional Z-pinch are presented. The experiments have been carried out in H 2 at 1/3 atm, using a pulse power generator capable of delivering a dl/dt > 10 12 A/s. The pinch is initiated by a focused laser pulse, which is coaxial with a cylindrical DC microdischarge. This configuration results in double column pinch at early times, which at current rise evolves into a gas embedded compressional Z-pinch. Diagnostics used are Rogowski coil, single frame holographic interferometry, and holographic shadowgraphy, visible streak camera images from which current, density, line density, pinch radius and plasma motion are obtained. The pinch is characterized by a maximum on axis density which is much higher than the expected value from the filling pressure, with a Bennett temperature of 40 eV at 130 kA. The results shown confirm the high degree of compression achievable with the composite preionization scheme. (author). 4 figs., 5 refs

  1. Face-to-face comparison of the predictive validity of two models of neuropathic pain in the rat: analgesic activity of pregabalin, tramadol and duloxetine.

    Science.gov (United States)

    Le Cudennec, Camille; Castagné, Vincent

    2014-07-15

    We compared the preclinical analgesic activity of three marketed drugs with different pharmacological properties, pregabalin, tramadol and duloxetine, described as effective against neuropathic pain in the clinic. These drugs were tested against evoked pain in two different neuropathic models in the rat, the Bennett (CCI) and the Chung (SNL) models. The selected endpoints were tactile allodynia, tactile hyperalgesia, heat hyperalgesia and cold allodynia. Although all three drugs displayed analgesic activity, the effects observed varied according to the behavioral evaluation. Pregabalin showed clear analgesic effects against cold allodynia and tactile hyperalgesia in both the CCI and Chung models. Tramadol was active against all four endpoints in the Chung model with similar effects in the CCI model, apart from tactile allodynia. Duloxetine inhibited tactile allodynia and heat hyperalgesia in both neuropathic pain models. It also displayed efficacy against tactile hyperalgesia in the CCI model and against cold allodynia in the Chung model. These data confirm that the CCI and the Chung models of neuropathic pain do not detect the activity of analgesics with the same sensitivity. Furthermore, the mode of stimulation (tactile or thermal) and the type of endpoint (allodynia or hyperalgesia) can further influence the observed efficacy of gold standards as well as novel compounds developed for treating neuropathic pain symptoms. Copyright © 2014. Published by Elsevier B.V.

  2. Single-crossover recombination in discrete time.

    Science.gov (United States)

    von Wangenheim, Ute; Baake, Ellen; Baake, Michael

    2010-05-01

    Modelling the process of recombination leads to a large coupled nonlinear dynamical system. Here, we consider a particular case of recombination in discrete time, allowing only for single crossovers. While the analogous dynamics in continuous time admits a closed solution (Baake and Baake in Can J Math 55:3-41, 2003), this no longer works for discrete time. A more general model (i.e. without the restriction to single crossovers) has been studied before (Bennett in Ann Hum Genet 18:311-317, 1954; Dawson in Theor Popul Biol 58:1-20, 2000; Linear Algebra Appl 348:115-137, 2002) and was solved algorithmically by means of Haldane linearisation. Using the special formalism introduced by Baake and Baake (Can J Math 55:3-41, 2003), we obtain further insight into the single-crossover dynamics and the particular difficulties that arise in discrete time. We then transform the equations to a solvable system in a two-step procedure: linearisation followed by diagonalisation. Still, the coefficients of the second step must be determined in a recursive manner, but once this is done for a given system, they allow for an explicit solution valid for all times.

  3. Molecular characterization of a CpTRIM35-like protein and its splice variants from whitespotted bamboo shark (Chiloscyllium plagiosum)

    International Nuclear Information System (INIS)

    Zhang, Xinshang; Zhao, Heng; Chen, Yeyu; Luo, Huiying; Yao, Bin

    2014-01-01

    Highlights: • A TRIM gene and three splice variants were firstly cloned from elasmobranch fish. • The genes were constitutively expressed with high levels in spleen and kidney. • The gene products were distributed in cytoplasm alone or cytoplasm and nucleus. • As E3 ubiquitin ligases, the proteins differed in immune responses to challenges. - Abstract: The tripartite motif (TRIM) proteins play important roles in a broad range of biological processes, including apoptosis, cell proliferation and innate immunity response. In this study, a TRIM gene and its three splice variants were cloned from an elasmobranch fish—whitespotted bamboo shark (Chiloscyllium plagiosum Bennett). Phylogenetic analysis indicated that the gene was closely related to TRIM35 homologs, thus termed CpTRIM35-like. Deduced CpTRIM35 has a RBCC-PRY/SPRY structure typical of TRIM proteins, and its splice variants (CpTRIM35-1–3) have different truncations at the C-terminus. The gene products were constitutively expressed in adult sharks with the highest levels in spleen and kidney. The different subcellular locations, upregulation upon LPS and poly I:C stimulation, and significant E3 ubiquitin ligase activities suggested their different roles in immune responses as an E3 ubiquitin ligase. This is the first TRIM protein ever characterized in elasmobranch fish

  4. Romania's flag raised at CERN

    CERN Multimedia

    Corinne Pralavorio

    2016-01-01

    A ceremony was held for the raising of the Romanian flag alongside the flags of CERN’s 21 other Member States.   The Romanian flag is raised alongside the flags of CERN’s other Member States, in the presence of the Romanian President, CERN’s Director-General, the President of the CERN Council and a large Romanian delegation. (Image: Maximilien Brice/ Sophia Bennett/CERN) On Monday, 5 September, the Romanian flag was raised in front of CERN for the first time, marking the country’s accession to Membership of the Organization. The blue, yellow and red flag joined those of the other 21 Member States of CERN in a ceremony attended by the President of Romania, Klaus Iohannis, the Romanian Minister for Education and Scientific Research, Mircea Dumitru, and several other members of the President’s office, the government and academia in Romania. The country officially became a CERN Member State on 17 July 2016, after 25 years of collaboration between the...

  5. Axial Length Variation Impacts on Superficial Retinal Vessel Density and Foveal Avascular Zone Area Measurements Using Optical Coherence Tomography Angiography.

    Science.gov (United States)

    Sampson, Danuta M; Gong, Peijun; An, Di; Menghini, Moreno; Hansen, Alex; Mackey, David A; Sampson, David D; Chen, Fred K

    2017-06-01

    To evaluate the impact of image magnification correction on superficial retinal vessel density (SRVD) and foveal avascular zone area (FAZA) measurements using optical coherence tomography angiography (OCTA). Participants with healthy retinas were recruited for ocular biometry, refraction, and RTVue XR Avanti OCTA imaging with the 3 × 3-mm protocol. The foveal and parafoveal SRVD and FAZA were quantified with custom software before and after correction for magnification error using the Littman and the modified Bennett formulae. Relative changes between corrected and uncorrected SRVD and FAZA were calculated. Forty subjects were enrolled and the median (range) age of the participants was 30 (18-74) years. The mean (range) spherical equivalent refractive error was -1.65 (-8.00 to +4.88) diopters and mean (range) axial length was 24.42 mm (21.27-28.85). Images from 13 eyes were excluded due to poor image quality leaving 67 for analysis. Relative changes in foveal and parafoveal SRVD and FAZA after correction ranged from -20% to +10%, -3% to +2%, and -20% to +51%, respectively. Image size correction in measurements of foveal SRVD and FAZA was greater than 5% in 51% and 74% of eyes, respectively. In contrast, 100% of eyes had less than 5% correction in measurements of parafoveal SRVD. Ocular biometry should be performed with OCTA to correct image magnification error induced by axial length variation. We advise caution when interpreting interocular and interindividual comparisons of SRVD and FAZA derived from OCTA without image size correction.

  6. Methods for Efficiently and Accurately Computing Quantum Mechanical Free Energies for Enzyme Catalysis.

    Science.gov (United States)

    Kearns, F L; Hudson, P S; Boresch, S; Woodcock, H L

    2016-01-01

    Enzyme activity is inherently linked to free energies of transition states, ligand binding, protonation/deprotonation, etc.; these free energies, and thus enzyme function, can be affected by residue mutations, allosterically induced conformational changes, and much more. Therefore, being able to predict free energies associated with enzymatic processes is critical to understanding and predicting their function. Free energy simulation (FES) has historically been a computational challenge as it requires both the accurate description of inter- and intramolecular interactions and adequate sampling of all relevant conformational degrees of freedom. The hybrid quantum mechanical molecular mechanical (QM/MM) framework is the current tool of choice when accurate computations of macromolecular systems are essential. Unfortunately, robust and efficient approaches that employ the high levels of computational theory needed to accurately describe many reactive processes (ie, ab initio, DFT), while also including explicit solvation effects and accounting for extensive conformational sampling are essentially nonexistent. In this chapter, we will give a brief overview of two recently developed methods that mitigate several major challenges associated with QM/MM FES: the QM non-Boltzmann Bennett's acceptance ratio method and the QM nonequilibrium work method. We will also describe usage of these methods to calculate free energies associated with (1) relative properties and (2) along reaction paths, using simple test cases with relevance to enzymes examples. © 2016 Elsevier Inc. All rights reserved.

  7. Neutron yield in experiments with Z-pinches in frozen deuterium filaments

    International Nuclear Information System (INIS)

    Meierovich, B.E.; Sukhorukov, S.T.

    1991-01-01

    Experiments on the properties of the neutron yield and stability of dense Z-pinches in frozen deuterium filaments two years ago have still not received a proper explanation. A discharge in a dielectric deuterium filament differs qualitatively in its behavior from one in a metal conductor. The authors assert attempts to interpret the experiment have not taken this fact properly into account. The enhanced stability and substantial neutron yield do not follow from the classical picture of a Bennett equilibrium in the current channel. The most important experimental characteristic of a discharge in frozen deuterium is the dependence of the neutron yield on the current strength at a given stage. The spread in the experimental points is quite large so one naturally prefers t describe the experimental data by means of a physically simple model and not go to a full-scale simulation of all the processes. When the deuterium is fully ionized the electron drift velocity is smaller than the thermal velocity, enabling calculation of the neutron yield by means of a self-similar model of the Z-pinch compression which treats electron degeneracy. To find the neutron yield it suffices to consider only the first half-period of the self-similar oscillations including the state of maximum compression. The subsequent evolution of the current channel, which is associated with radial expansion, does not contribute significantly to the neutron yield

  8. Chelle L. Gentemann Receives 2013 Charles S. Falkenberg Award: Response

    Science.gov (United States)

    Gentemann, Chelle L.

    2014-01-01

    Receiving the 2013 Charles S. Falkenberg Award of the American Geophysical Union came completely as a surprise, wonderful but humbling. It is attributable to those who have made my work possible. Peter Minnett is first on the list. He is a great friend and colleague, an example for us all of how to conduct scientific research. Unstintingly generous with his time, resources, and ideas, he always puts scientific advancement ahead of personal gain. Eric Lindstrom, program manager for NASA's physical oceanography program, has been a role model on how to run large projects and still stay focused on scientific results. His support of this project from the beginning has been instrumental in its success. I also have been lucky enough to work with Frank Wentz, one of the smartest scientists I know. My husband, David White, has put up with much as I have focused on this work, as have our 3-year-old sons, Austin and Bennett. The rest of my family has given their support, love, and inspiration. I wish that my grandfather, who encouraged my interest in science, could be here to share this honor.

  9. Heterosexual Men's Ratings of Sexual Attractiveness of Adolescent Girls: A Cross-Cultural Analysis.

    Science.gov (United States)

    Bennett, Paul; Lowe, Rob; Petrova, Hristina

    2015-11-01

    Following an identical procedure to the one we previously reported (O'Donnell, Lowe, Brotherton, & Bennett, 2014), we examined ratings of sexual attraction to photographs of (the same) adolescent girls (Tanner stages 3-4) labelled as either 14-15 years or 16-17 years old, women, and men. Ratings were made by Bulgarian heterosexual men by pressing buttons on a response box which recorded the ratings made and the time in milliseconds taken to respond. Despite the age of sexual consent in Bulgaria being 14 years, the pattern of findings did not differ from those found in the UK, where the age of consent is 16 years. That is, mean ratings of the sexual attractiveness of the girls labelled as younger were lower than those of the (same) girls labelled as older, and those of the women. In addition, correlations revealed significantly longer responding times when younger girls (and men) were rated as more highly sexually attractive. These associations were reversed in response to the photographs of women. We take these findings to indicate an inhibitory effect arising from generalized sexual norms relating to the inappropriateness of sexual attraction to young girls; the greater the attraction, the higher the inhibition. This second replication of our initial findings suggests a robust effect that may be of benefit in exploration of pedophile or sex offender groups.

  10. CERN’s annual relay a runaway success

    CERN Document Server

    Klaus Hanke for the CERN Running Club

    2016-01-01

    With a record participation of 128 teams of six runners each, this year’s CERN Relay Race took place on 19 May on the Meyrin site.   One of the many winning teams from the 2016 relay race. (Image: Sophia Bennett/CERN) With a record participation of 128 teams and 768 runners, this year’s CERN Relay Race took place on 19 May on the Meyrin site. The teams were mainly composed of CERN staff or contractors working on the CERN site.  A few external teams took also part in the race. Times ranged from 10 min 19 s to over 18 min. The Running Club website now has both the results, and the photos from race day. The CERN Relay Race is jointly organised every year by the CERN Running Club and the Staff Association. It is a tradition that is appreciated by many as a team building, rather than a competitive event. The CERN Running Club wishes to thank all runners and all volunteers for making this event a success.

  11. Cryogenic high current discharges

    International Nuclear Information System (INIS)

    Meierovich, B.E.

    1994-01-01

    Z-pinches formed from frozen deuterium fibers by a rapidly rising current have enhanced stability and high neutron yield. The efforts to understand the enhanced stability and neutron yield on the basis of classical picture of Bennett equilibrium of the current channel has not given satisfactory results. The traditional approach does not take into account the essential difference between the frozen deuterium fiber Z-pinches and the usual Z-pinches such as exploding wires or classical gas-puffed Z-pinches. The very low temperature of the fiber atoms (10 K), together with the rapidly rising current, result in the coexistence of a high current channel with unionized fiber atoms for a substantial period of time. This phenomena lasts during the risetime. This approach takes into account the difference of the breakdown in a dielectric deuterium fiber and the breakdown in a metallic wire. This difference is essential to the understanding of specific features of cryogenic high current discharges. Z-pinches in frozen deuterium fibers should be considered as a qualitatively new phenomenon on the boundary of cryogenic and high current physics. It is a start of a new branch in plasma physics: the physics of cryogenic high current discharges

  12. The principle of procreative beneficence: old arguments and a new challenge.

    Science.gov (United States)

    Hotke, Andrew

    2014-06-01

    In the last ten years, there have been a number of attempts to refute Julian Savulescu's Principle of Procreative Beneficence; a principle which claims that parents have a moral obligation to have the best child that they can possibly have. So far, no arguments against this principle have succeeded at refuting it. This paper tries to explain the shortcomings of some of the more notable arguments against this principle. I attempt to break down the argument for the principle and in doing so, I explain what is needed to properly refute it. This helps me show how and why the arguments of Rebecca Bennett, Sarah Stoller and others fail to refute the principle. Afterwards, I offer a new challenge to the principle. I attack what I understand to be a fundamental premise of the argument, a premise which has been overlooked in the literature written about this principle. I argue that there is no reason to suppose, as Savulescu does, that morality requires us to do what we have most reason to do. If we reject this premise, as I believe we have reason to do, the argument for Procreative Beneficence fails. © 2012 John Wiley & Sons Ltd.

  13. Status of the Center for Advanced Microstructures and Devices (CAMD)—2010

    Science.gov (United States)

    Roy, Amitava; Morikawa, Eizi; Bellamy, Henry; Kumar, Challa; Goettert, Jost; Suller, Victor; Morris, Kevin; Kurtz, Richard; Scott, John

    2011-09-01

    The J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices (CAMD) is a 1.3 GeV synchrotron-radiation facility owned and operated by the State of Louisiana. Fifteen beamlines provide radiation for CAMD users and cover the spectral range from the far IR to X-rays of ca. 40 keV. Eleven of them receive radiation from bending magnets and four from a 7 T wavelength shifter. A wide range of basic and applied scientific experiments as well as microfabrication are performed at these beamlines. The nanomaterial synthesis and characterization laboratory at CAMD continues to add new instruments such as SQUID magnetometer (Quantum Deign MPMS XL5) and high precision microfluidic-based nanomaterials synthesis equipment complementing already available facilities. We have recently received NSF MRI funding for a multipole 7.5 T wiggler that will become operational in 2012. Generous equipment donations from the University of California at Riverside (Professor Jory Yarmoff) and the University of Bonn (ELSA facility) will provide users with two additional VUV beamlines in the near future.

  14. Status of the Center for Advanced Microstructures and Devices (CAMD)-2010

    Energy Technology Data Exchange (ETDEWEB)

    Roy, Amitava, E-mail: reroy@lsu.edu [J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, LA 70806 (United States); Morikawa, Eizi; Bellamy, Henry; Kumar, Challa; Goettert, Jost; Suller, Victor; Morris, Kevin; Kurtz, Richard; Scott, John [J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, LA 70806 (United States)

    2011-09-01

    The J. Bennett Johnston, Sr., Center for Advanced Microstructures and Devices (CAMD) is a 1.3 GeV synchrotron-radiation facility owned and operated by the State of Louisiana. Fifteen beamlines provide radiation for CAMD users and cover the spectral range from the far IR to X-rays of ca. 40 keV. Eleven of them receive radiation from bending magnets and four from a 7 T wavelength shifter. A wide range of basic and applied scientific experiments as well as microfabrication are performed at these beamlines. The nanomaterial synthesis and characterization laboratory at CAMD continues to add new instruments such as SQUID magnetometer (Quantum Deign MPMS XL5) and high precision microfluidic-based nanomaterials synthesis equipment complementing already available facilities. We have recently received NSF MRI funding for a multipole 7.5 T wiggler that will become operational in 2012. Generous equipment donations from University of California at Riverside (Professor Jory Yarmoff) and University of Bonn (ELSA facility) will provide users with two additional VUV beamlines in the near future.

  15. Evaluating the potential efficacy of invasive lionfish (Pterois volitans removals.

    Directory of Open Access Journals (Sweden)

    Andrew B Barbour

    Full Text Available The lionfish, Pterois volitans (Linnaeus and Pterois miles (Bennett, invasion of the Western Atlantic Ocean, Caribbean Sea and Gulf of Mexico has the potential to alter aquatic communities and represents a legitimate ecological concern. Several local removal programs have been initiated to control this invasion, but it is not known whether removal efforts can substantially reduce lionfish numbers to ameliorate these concerns. We used an age-structured population model to evaluate the potential efficacy of lionfish removal programs and identified critical data gaps for future studies. We used high and low estimates for uncertain parameters including: length at 50% vulnerability to harvest (L(vul, instantaneous natural mortality (M, and the Goodyear compensation ratio (CR. The model predicted an annual exploitation rate between 35 and 65% would be required to cause recruitment overfishing on lionfish populations for our baseline parameter estimates for M and CR (0.5 and 15. Lionfish quickly recovered from high removal rates, reaching 90% of unfished biomass six years after a 50-year simulated removal program. Quantifying lionfish natural mortality and the size-selective vulnerability to harvest are the most important knowledge gaps for future research. We suggest complete eradication of lionfish through fishing is unlikely, and substantial reduction of adult abundance will require a long-term commitment and may be feasible only in small, localized areas where annual exploitation can be intense over multiple consecutive years.

  16. Evaluating the potential efficacy of invasive lionfish (Pterois volitans) removals.

    Science.gov (United States)

    Barbour, Andrew B; Allen, Micheal S; Allen, Michael S; Frazer, Thomas K; Sherman, Krista D

    2011-05-10

    The lionfish, Pterois volitans (Linnaeus) and Pterois miles (Bennett), invasion of the Western Atlantic Ocean, Caribbean Sea and Gulf of Mexico has the potential to alter aquatic communities and represents a legitimate ecological concern. Several local removal programs have been initiated to control this invasion, but it is not known whether removal efforts can substantially reduce lionfish numbers to ameliorate these concerns. We used an age-structured population model to evaluate the potential efficacy of lionfish removal programs and identified critical data gaps for future studies. We used high and low estimates for uncertain parameters including: length at 50% vulnerability to harvest (L(vul)), instantaneous natural mortality (M), and the Goodyear compensation ratio (CR). The model predicted an annual exploitation rate between 35 and 65% would be required to cause recruitment overfishing on lionfish populations for our baseline parameter estimates for M and CR (0.5 and 15). Lionfish quickly recovered from high removal rates, reaching 90% of unfished biomass six years after a 50-year simulated removal program. Quantifying lionfish natural mortality and the size-selective vulnerability to harvest are the most important knowledge gaps for future research. We suggest complete eradication of lionfish through fishing is unlikely, and substantial reduction of adult abundance will require a long-term commitment and may be feasible only in small, localized areas where annual exploitation can be intense over multiple consecutive years.

  17. Evaluation of the user interface simplicity in the modern generation of mechanical ventilators.

    Science.gov (United States)

    Uzawa, Yoshihiro; Yamada, Yoshitsugu; Suzukawa, Masayuki

    2008-03-01

    We designed this study to evaluate the simplicity of the user interface in modern-generation mechanical ventilators. We hypothesized that different designs in the user interface could result in different rates of operational failures. A laboratory in a tertiary teaching hospital. Crossover design. Twenty-one medical resident physicians who did not possess operating experience with any of the selected ventilators. Four modern mechanical ventilators were selected: Dräger Evita XL, Maquet Servo-i, Newport e500, and Puritan Bennett 840. Each subject was requested to perform 8 tasks on each ventilator. Two objective variables (the number of successfully completed tasks without operational failures and the operational time) and the overall subjective rating of the ease of use, measured with a 100-mm visual analog scale were recorded. The total percentage of operational failures made for all subjects, for all tasks, was 23%. There were significant differences in the rates of operational failures and operational time among the 4 ventilators. Subjects made more operational failures in setting up the ventilators and in making ventilator-setting changes than in reacting to alarms. The subjective feeling of the ease of use was also significantly different among the ventilators. The design of the user interface is relevant to the occurrence of operational failures. Our data indicate that ventilator designers could optimize the user-interface design to reduce the operational failures; therefore, basic user interface should be standardized among the clinically used mechanical ventilators.

  18. Evaluation of Intensive Care Unit Ventilators at Altitude.

    Science.gov (United States)

    Blakeman, Thomas; Rodriquez, Dario; Petro, Michael; Branson, Richard

    Devices may forgo US military air worthiness and safety testing in an attempt to expedite the availability of critical assets such as mechanical ventilators with a waiver for one-time use in extenuating circumstances. We evaluated two Intensive Care Unit (ICU) level ventilators: Drager Evita XL and Puritan Bennett (PB) 840 in an altitude chamber at sea level and altitudes of 8,000 and 16,000 feet. Altitude affected delivered tidal volumes (VTs) in volume control mode (VCV) and Pressure Regulated Volume Controlled (PRVC) mode at altitude with the Evita XL but the differences were not considered clinically important with the PB 840. Sixty-seven percent of the V T s were outside the ASTM standard of ± 10% of set V T with the Evita XL at altitude. The PB 840 did not deliver V T s that were larger than the ASTM standard up to an altitude of 16,000 feet while the majority of the delivered V T s with the Därger XL were greater than the ASTM standard. This could present a patient safety issue. Caregivers must be aware of the capabilities and limitations of ICU ventilators when utilized in a hypobaric environment in order to provide safe care. Copyright © 2017 Air Medical Journal Associates. All rights reserved.

  19. Effect of Three Entomopathogenic Fungi on Three Species of Stingless Bees (Hymenoptera: Apidae) Under Laboratory Conditions.

    Science.gov (United States)

    Toledo-Hernández, R A; Ruíz-Toledo, J; Toledo, J; Sánchez, D

    2016-05-04

    Development of alternative strategies for pest control with reduced effect on beneficial organisms is a priority given the increasing global loss of biodiversity. Biological control with entomopathogenic fungi arises as a viable option to control insect pests. However, few studies have focused on the consequences of using these organisms on pollinators other than the honey bee (Apis mellifera L.) or bumble bees (Bombus spp). We evaluated the pathogenicity of commercial formulations of three widely used entomopathogenic fungi, Metarhizium anisopliae (Metschnikoff) Sorokin, Beauveria bassiana Vuillemin, and Isaria fumosorosea (Wize), to three species of stingless bees: Tetragonisca angustula Latreille, Scaptotrigona mexicana Guérin-Meneville, and Melipona beecheii Bennett. Bioassays consisted of exposing groups of bees to the recommended field concentration of each fungus using a microspray tower under laboratory conditions. Susceptibility to fungi varied greatly among species. Isaria fumosorosea (strain Ifu-lu 01) and the two formulations of B. bassiana (Bea-TNK and BotanicGard) caused entomopathogenic fungi on stingless bees, further field studies are required to support this finding. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  20. Applications of AMS to hydrology

    International Nuclear Information System (INIS)

    Bentley, H.W.; Davis, S.N.

    1981-01-01

    The evaluation and management of water as a resource requires an understanding of the chemical, and geological interactions that water effects or undergoes in the hydrologic cycle. Delivery of water to the land surface by precipitation, subsequent streamflow, circulation in surface waters and evapotranspiration, infiltration, recharge, movement of waters in the subsurface, and discharge are of interest. Also important are the quality of water, water's role in mineral dissolution, transport, and deposition, and the various water-related geotechnical problems of subsidence, tectonics, slope instability, and earth structures. Mathematical modeling techniques are available and are being improved which describe these phenomena and predict future system behavior. Typically, however, models suffer from substantial uncertainties due to insufficient data. Refinement, calibration,and verification of hydrologic models require expansion of the data base. Examination of chemical constituents of water which act as tracers can often supply the needed information. Unfortunately, few tracers are available which are both mobile and chemically stable. Several long-lived radioisotopic hydrologic tracers exist, however, which have received little attention in hydrologic studies to date because of low concentration, low specific activity, or sample size limitations. Recent development of ultra-sensitive accelerator mass spectrometry techniques (AMS) by Purser and others (1977), Nelson and others (1977), Bennett and others (1978), Muller and others (1978), Raisbeck and others (1978) is now expected to provide access to many of these tracers

  1. Competencias socio-emocionales y creatividad según el nivel de inteligencia

    Directory of Open Access Journals (Sweden)

    Marta SAINZ

    2011-01-01

    Full Text Available El trabajo analiza las diferencias en las competencias socio-emocionales y la creatividad de distintos grupos organizados por niveles de inteligencia (alta, media, baja así como la relación entre las competencias socio-emocionales y la creatividad según dichos niveles. La muestra estuvo compuesta por 679 alumnos con edades comprendidas entre los 12 y 18 años (M=13.90, DT=1.28. Todos ellos cursaban sus estudios de Educación Secundaria Obligatoria en distintos centros concertados de la Comunidad Valenciana (España. Se valoraron los siguientes aspectos, a la competencia socio¿emocional total fue evaluada mediante el Inventario de Inteligencia Emocional de Bar¿On (EQ-i,YV, BAR-ON & PARKER, 2000, b la capacidad cognitiva fue evaluada mediante el Test de Aptitudes Diferenciales (DAT-5, BENNETT, SEASHORE & WESMAN, 2000, y c la creatividad fue evaluada con el Test de Pensamiento Creativo de Torrance, TTCT (TORRANCE, 1974. Los datos indicaron la existencia de diferencias estadísticamente significativas en la autopercepción de la competencia emocional total y en la dimensión elaboración de la creatividad según el nivel intelectual de los participantes. Finalmente, no se evidenciaron correlaciones estadísticamente significativas entre competencia socio-emocional y creatividad.

  2. Investigation of Partially Crystalline Zr77Ni23 Metallic Glass

    Directory of Open Access Journals (Sweden)

    Amra Salčinović Fetić

    2016-08-01

    Full Text Available This paper presents the results of an extensive research of partially crystalline Zr77Ni23 metallic glass (indicated numbers refer to atomic percentages. The partially crystalline Zr77Ni23 samples were prepared by melt-spinning using a device constructed in the Metal Physics Laboratory, Faculty of Science in Sarajevo. XRD pattern shows crystalline peaks which correspond to an orthorhombic structure of Zr3Ni superimposed on an amorphous pattern. Homogeneity and chemical composition were investigated using scanning electron microscopy (SEM and energy-dispersive X-ray spectroscopy (EDX. Crystallization was studied by differential scanning calorimetry (DSC. DSC analysis indicated a simple thermally activated process. Overall activation energy of the crystallization was calculated using Kissinger's model for nonisothermal process and compared with those given by the Augis-Bennett model. By monitoring of the electrical resistance in the temperature range 80 – 270 K a small and negative thermal coefficient of electrical resistance was observed. This means that electrical resistance varies slightly with temperature and it makes this metallic glass suitable for application in electronic circuits for which this property is an important requirement.

  3. Peace/Williston fish and wildlife compensation program: 1992-1993 public compensation report

    International Nuclear Information System (INIS)

    Bemister, C.N.

    1993-01-01

    The Peace/Williston Fish and Wildlife Compensation Program is a joint initiative by British Columbia Hydro and the provincial environment ministry to enhance and protect fish and wildlife resources and their habitat in the Williston watershed affected by the construction of the WAC Bennett and Peace Canyon dams on the Peace River. The interest from a fund of $11 million, established by BC Hydro in 1988, is used to maintain the compensation programs. Public input to the ongoing fish and wildlife programs is provided by a public consultation program. To date, the Peace/Williston compensation program has undertaken 93 projects to either conserve or enhance fish and wildlife through habitat improvement and protection. A summary is presented of the activities undertaken by the public consultation program in 1992/93 and public attitudes toward the consultation program. Activities undertaken in the fish and wildlife enhancement program are summarized in appendices. Fisheries programs included stocking, stream fertilization, small lake surveys, preparation of a side channel in Carbon Creek for multi-species spawning, and creation of an artificial spring at Windy Point for spawning purposes. Wildlife programs included channel clearance and vegetation supply improvements to enhance muskrat and beaver habitat; radio monitoring of sheep and elk; studying the feasibility of transplanting elk herds; and purchase of critical ungulate winter habitat lands. 13 figs., 4 tabs

  4. Peace/Williston fish and wildlife compensation program: 1991-1992 Public compensation report

    International Nuclear Information System (INIS)

    Becker, G.K.

    1992-01-01

    The Peace/Williston Fish and Wildlife Compensation Program is a joint initiative by British Columbia Hydro and the provincial environment ministry to enhance and protect fish and wildlife resources and their habitat in the Williston watershed affected by the construction of the WAC Bennett and Peace Canyon dams on the Peace River. The interest from a fund of $11 million, established by BC Hydro in 1988, is used to maintain the compensation programs. Public input to the ongoing fish and wildlife programs is provided by a public consultation program. A summary is presented of the activities undertaken by the public consultation program in 1991/92 and public attitudes toward the consultation program. Activities undertaken in the fish and wildlife enhancement program are summarized in appendices. Fisheries programs included stocking, stream fertilization, small lake surveys, preparation of a side channel in Carbon Creek for multi-species spawning, and creation of an artificial spring at Windy Point for spawning purposes. Wildlife programs included channel clearance and vegetation supply improvements to enhance muskrat and beaver habitat; radio monitoring of sheep and elk; studying the feasibility of transplanting elk herds; and purchase of critical ungulate winter habitat lands. 1 fig., 12 tabs

  5. Significance of Two New Pleistocene Plant Records from Western Europe

    Science.gov (United States)

    Field, Michael H.; Velichkevich, Felix Y.; Andrieu-Ponel, Valerie; Woltz, Phillipe

    2000-09-01

    The first records of extinct Caulinia goretskyi (Dorofeev) Dorofeev (synonym Najas goretskyi Dorofeev) in western Europe and of Potamogeton occidentalis M.H. Field sp. nov. were obtained from plant macrofossil analyses of Middle Pleistocene temperate stage deposits exposed at Trez Rouz, Brittany, France. Palynological assemblages recovered suggest correlation with the Holsteinian Stage. This discovery greatly expands the western limit of the paleogeographical distribution of Caulinia goretskyi. The record of Potamogeton occidentalis indicates an affinity with the eastern Asiatic flora, as the fruits resemble those of the extant Potamogeton maackianus A. Bennett. Other extinct Pleistocene species related to P. maackianus have been described, and it is possible to follow the development of this group through the Pleistocene in the European fossil record. These new finds illustrate the importance of a complete paleobotanical approach (both plant macrofossil and palynological analyses). The plant macrofossil assemblages not only provide detailed insight into local vegetation and environment, because they are often not transported long distances (in temperate areas) and can frequently be identified to species level; they can also offer the opportunity to investigate Pleistocene evolutionary trends.

  6. Eliglustat tartrate for the treatment of adults with type 1 Gaucher disease

    Directory of Open Access Journals (Sweden)

    Bennett LL

    2015-08-01

    Full Text Available Lunawati L Bennett, Kelsey TurcotteSchool of Pharmacy, Union University, Jackson, TN, USA Abstract: The purpose of this article is to review eliglustat tartrate, a substrate reduction therapy, for the treatment of Gaucher disease type 1 (GD1. GD is an rare inborn error of metabolism caused by accumulation of lipid substrates such as glucosylceramide within the monocyte-macrophage system that affects the body by causing enlargement of the spleen and liver, destruction of bone, and abnormalities of the lungs and blood, such as anemia, thrombocytopenia, and leukopenia. GD is classified into three types: GD1, a chronic and non-neuronopathic disease accounting for 95% of GD cases; and types 2 and 3 (GD2 GD3 which are more progressive diseases with no approved drugs available at this time. Treatment options for GD1 include enzyme replacement therapy and substrate reduction therapy. Eliglustat works by inhibiting UDP-glucosylceramide synthase, the first enzyme that catalyzes the biosynthesis of glycosphingolipids, thus reducing the load of glucosylceramide influx into the lysosome. Eliglustat was approved by the US Food and Drug Administration after three Phase I, two Phase II, and two Phase III clinical trials. The dose of eliglustat is 84 mg twice a day or once daily depending on the cytochrome P450 2D6 genotype of the patient. Keywords: Gaucher disease, glucocerebrosidase, glucosylceramide synthase, eliglustat tartrate, substrate reduction therapy

  7. Management of Open Pneumothorax in Tactical Combat Casualty Care: TCCC Guidelines Change 13-02.

    Science.gov (United States)

    Butler, Frank K; Dubose, Joseph J; Otten, Edward J; Bennett, Donald R; Gerhardt, Robert T; Kheirabadi, Bijan S; Gross, Kriby R; Cap, Andrew P; Littlejohn, Lanny F; Edgar, Erin P; Shackelford, Stacy A; Blackbourne, Lorne H; Kotwal, Russ S; Holcomb, John B; Bailey, Jeffrey A

    2013-01-01

    During the recent United States Central Command (USCENTCOM) and Joint Trauma System (JTS) assessment of prehospital trauma care in Afghanistan, the deployed director of the Joint Theater Trauma System (JTTS), CAPT Donald R. Bennett, questioned why TCCC recommends treating a nonlethal injury (open pneumothorax) with an intervention (a nonvented chest seal) that could produce a lethal condition (tension pneumothorax). New research from the U.S. Army Institute of Surgical Research (USAISR) has found that, in a model of open pneumothorax treated with a chest seal in which increments of air were added to the pleural space to simulate an air leak from an injured lung, use of a vented chest seal prevented the subsequent development of a tension pneumothorax, whereas use of a nonvented chest seal did not. The updated TCCC Guideline for the battlefield management of open pneumothorax is: ?All open and/ or sucking chest wounds should be treated by immediately applying a vented chest seal to cover the defect. If a vente chest seal is not available, use a non-vented chest seal. Monitor the casualty for the potential development of a subsequent tension pneumothorax. If the casualty develops increasing hypoxia, respiratory distress, or hypotension and a tension pneumothorax is suspected, treat by burping or removing the dressing or by needle decompression.? This recommendation was approved by the required two-thirds majority of the Committee on TCCC in June 2013. 2013.

  8. Reduced-Rank Array Modes of the California Current Observing System

    Science.gov (United States)

    Moore, Andrew M.; Arango, Hernan G.; Edwards, Christopher A.

    2018-01-01

    The information content of the ocean observing array spanning the U.S. west coast is explored using the reduced-rank array modes (RAMs) derived from a four-dimensional variational (4D-Var) data assimilation system covering a period of three decades. RAMs are an extension of the original formulation of array modes introduced by Bennett (1985) but in the reduced model state-space explored by the 4D-Var system, and reveal the extent to which this space is activated by the observations. The projection of the RAMs onto the empirical orthogonal functions (EOFs) of the 4D-Var background error correlation matrix provides a quantitative measure of the effectiveness of the measurements in observing the circulation. It is found that much of the space spanned by the background error covariance is unconstrained by the present ocean observing system. The RAM spectrum is also used to introduce a new criterion to prevent 4D-Var from overfitting the model to the observations.

  9. Interference of Photons from a Weak Laser and a Quantum Dot

    Science.gov (United States)

    Ritchie, David; Bennett, Anthony; Patel, Raj; Nicoll, Christine; Shields, Andrew

    2010-03-01

    We demonstrate two-photon interference from two unsynchronized sources operating via different physical processes [1]. One source is spontaneous emission from the X^- state of an electrically-driven InAs/GaAs single quantum dot with μeV linewidth, the other stimulated emission from a laser with a neV linewidth. We mix the emission from these sources on a balanced non-polarising beam splitter and measure correlations in the photons that exit using Si-avalanche photodiodes and a time-correlated counting card. By periodically switching the polarisation state of the weak laser we simultaneously measure the correlation for parallel and orthogonally polarised sources, corresponding to maximum and minimum degrees of interference. When the two sources have the same intensity, a reduction in the correlation function at time zero for the case of parallel photon sources clearly indicates this interference effect. To quantify the degree of interference, we develop a theory that predicts the correlation function. Data and experiment are then compared for a range of intensity ratios. Based on this analysis we infer a wave-function overlap of 91%, which is remarkable given the fundamental differences between the two sources. [1] Bennett A. J et al Nature Physics, 5, 715--717 (2009).

  10. Superdense Coding with GHZ and Quantum Key Distribution with W in the ZX-calculus

    Directory of Open Access Journals (Sweden)

    Anne Hillebrand

    2012-10-01

    Full Text Available Quantum entanglement is a key resource in many quantum protocols, such as quantum teleportation and quantum cryptography. Yet entanglement makes protocols presented in Dirac notation difficult to verify. This is why Coecke and Duncan have introduced a diagrammatic language for quantum protocols, called the ZX-calculus. This diagrammatic notation is both intuitive and formally rigorous. It is a simple, graphical, high level language that emphasises the composition of systems and naturally captures the essentials of quantum mechanics. In the author's MSc thesis it has been shown for over 25 quantum protocols that the ZX-calculus provides a relatively easy and more intuitive presentation. Moreover, the author embarked on the task to apply categorical quantum mechanics on quantum security; earlier works did not touch anything but Bennett and Brassard's quantum key distribution protocol, BB84. Superdense coding with the Greenberger-Horne-Zeilinger state and quantum key distribution with the W-state are presented in the ZX-calculus in this paper.

  11. [Historic evolution of psychiatric care paradigms].

    Science.gov (United States)

    Gabay, Pablo M; Fernández Bruno, Mónica

    2017-09-01

    The rehabilitation of severely mentally-ill patients and their return to the community are related to historical progress. Their potential of achieving these goals is higher or lower depending on the presence of more or less stigma attached to their condition. Watts and Bennett have divided psychiatric rehabilitation into three phases: Phase 1: Very little was done because there was not much to be done. Patients were rejected and received mistreatment. Phase 2: Their vulnerability was admitted and protection was given to the disabled; services were provided by charity and voluntary religious institutions; there was no clear distinction between illness and poverty. Phase 3: Modern psychiatric rehabilitation began after the two World Wars in the 20th century, with attempts to modify and to oppose disability with the development of other skills. Psychiatric rehabilitation programs help these patients to resume life in the community and prevent their social isolation. By ensuring continuity of their treatment, rehabilitation programs reduce relapses and hospitalizations, thereby contributing to preserve family life and social inclusion. This reduces treatment costs to both families and communities, while promoting patients' reinsertion and recovery in the community according to their individual needs.

  12. Redescription of Tripaphylus musteli (van Beneden, 1851) (Copepoda: Sphyriidae) and the relegation of Paeon Wilson, 1919 to synonymy with Tripaphylus Richiardi in Anonymous, 1878.

    Science.gov (United States)

    Benz, George W; Boxshall, Geoffrey A

    2017-07-01

    Tripaphylus musteli (van Beneden, 1851) (Copepoda, Siphonostomatoida, Sphyriidae) is redescribed from an adult female collected from the branchial chamber of a starry smooth-hound, Mustelus asterias Cloquet (Carcharhiniformes, Triakidae), captured in the English Channel off Portland, UK. The new account of T. musteli is the first based on a complete adult female and highlighted the lack of a robust distinction separating Tripaphylus Richiardi, in Anonymous, 1878 and Paeon Wilson, 1919 prompting us to relegate Paeon to a junior subjective synonym of Tripaphylus. In the light of this synonymy the eight former species of Paeon are transferred to Tripaphylus as follows: T. ferox (Wilson, 1919) new combination, T. elongatus (Wilson, 1932) new combination, T. vassierei (Delamare Deboutteville & Nuñes-Ruivo, 1954) new combination, T. lobatus (Kirtisinghe, 1964) new combination, T. asymboli (Turner, Kyne & Bennett, 2003) new combination, T. versicolor (Wilson, 1919) new combination, T. australis (Kabata, 1993) new combination, and T. triakis (Castro Romero, 2001) new combination. Comparisons between terminology used in this report and that in the literature indicate that all transformed adult females of Tripaphylus probably possess a full complement of cephalic appendages and maxillipeds. All limbs, with the exception of the maxillae share a general morphological similarity to the corresponding appendages of conspecific males. The maxilla of the transformed adult female of Tripaphylus is a small digitiform protuberance associated with a swelling in some species.

  13. Quantum Flows for Secret Key Distribution in the Presence of the Photon Number Splitting Attack

    Directory of Open Access Journals (Sweden)

    Luis A. Lizama-Pérez

    2014-06-01

    Full Text Available Physical implementations of quantum key distribution (QKD protocols, like the Bennett-Brassard (BB84, are forced to use attenuated coherent quantum states, because the sources of single photon states are not functional yet for QKD applications. However, when using attenuated coherent states, the relatively high rate of multi-photonic pulses introduces vulnerabilities that can be exploited by the photon number splitting (PNS attack to brake the quantum key. Some QKD protocols have been developed to be resistant to the PNS attack, like the decoy method, but those define a single photonic gain in the quantum channel. To overcome this limitation, we have developed a new QKD protocol, called ack-QKD, which is resistant to the PNS attack. Even more, it uses attenuated quantum states, but defines two interleaved photonic quantum flows to detect the eavesdropper activity by means of the quantum photonic error gain (QPEG or the quantum bit error rate (QBER. The physical implementation of the ack-QKD is similar to the well-known BB84 protocol.

  14. Plant maintenance and advanced reactors issue, 2008

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal [ed.

    2009-09-15

    The focus of the September-October issue is on plant maintenance and advanced reactors. Major articles/reports in this issue include: Technologies of national importance, by Tsutomu Ohkubo, Japan Atomic Energy Agency, Japan; Modeling and simulation advances brighten future nuclear power, by Hussein Khalil, Argonne National Laboratory, Energy and desalination projects, by Ratan Kumar Sinha, Bhabha Atomic Research Centre, India; A plant with simplified design, by John Higgins, GE Hitachi Nuclear Energy; A forward thinking design, by Ray Ganthner, AREVA; A passively safe design, by Ed Cummins, Westinghouse Electric Company; A market-ready design, by Ken Petrunik, Atomic Energy of Canada Limited, Canada; Generation IV Advanced Nuclear Energy Systems, by Jacques Bouchard, French Commissariat a l'Energie Atomique, France, and Ralph Bennett, Idaho National Laboratory; Innovative reactor designs, a report by IAEA, Vienna, Austria; Guidance for new vendors, by John Nakoski, U.S. Nuclear Regulatory Commission; Road map for future energy, by John Cleveland, International Atomic Energy Agency, Vienna, Austria; and, Vermont's largest source of electricity, by Tyler Lamberts, Entergy Nuclear Operations, Inc. The Industry Innovation article is titled Intelligent monitoring technology, by Chris Demars, Exelon Nuclear.

  15. Oesophageal lichen planus: the efficacy of topical steroid-based therapies.

    Science.gov (United States)

    Podboy, A; Sunjaya, D; Smyrk, T C; Murray, J A; Binder, M; Katzka, D A; Alexander, J A; Halland, M

    2017-01-01

    Oesophageal lichen planus is an idiopathic inflammatory disorder characterized by significant oesophageal stricturing. Oesophageal lichen planus is a rare, difficult to diagnose, and likely an under recognized disease. As a result, there is no standardized approach to therapy and treatment strategies vary. To examine the utility of topical steroid therapy (fluticasone or budesonide) in the management of oesophageal lichen planus. A retrospective chart review was conducted of patients diagnosed with oesophageal lichen planus who underwent baseline and follow up endoscopy pre and post topical steroid therapy between 1995 and 2016 at Mayo Clinic, Rochester MN. Average time between upper GI endoscopy was 3.2 months (0.7-11.7). Swallowed steroid preparations included fluticasone 880 μg twice daily or budesonide 3 mg twice daily. Patients were reviewed for symptomatic response to therapy using the Dakkak-Bennett dysphagia score (0-4, no dysphagia to total aphagia). Pre- and post-endoscopic findings were assessed. Additional baseline demographic, endoscopic, and histologic data were also obtained. We identified 40 patients who met the inclusion criteria. A significant reduction in median dysphagia score from 1 (0-4) to 0 (0-3) after steroid therapy (P lichen planus. © 2016 John Wiley & Sons Ltd.

  16. A new test phantom with different breast tissue compositions for image quality assessment in conventional and digital mammography

    International Nuclear Information System (INIS)

    Pachoud, Marc; Lepori, D; Valley, Jean-Francois; Verdun, Francis R

    2004-01-01

    Our objective is to describe a new test phantom that permits the objective assessment of image quality in conventional and digital mammography for different types of breast tissue. A test phantom, designed to represent a compressed breast, was made from tissue equivalent materials. Three separate regions, with different breast tissue compositions, are used to evaluate low and high contrast resolution, spatial resolution and image noise. The phantom was imaged over a range of kV using a Contour 2000 (Bennett) mammography unit with a Kodak MinR 2190-MinR L screen-film combination and a Senograph 2000D (General Electric) digital mammography unit. Objective image quality assessments for different breast tissue compositions were performed using the phantom for conventional and digital mammography. For a similar mean glandular dose (MGD), the digital system gives a significantly higher contrast-to-noise ratio (CNR) than the screen-film system for 100% glandular tissue. In conclusion, in mammography, a range of exposure conditions is used for imaging because of the different breast tissue compositions encountered clinically. Ideally, the patient dose-image quality relationship should be optimized over the range of exposure conditions. The test phantom presented in this work permits image quality parameters to be evaluated objectively for three different types of breast tissue. Thus, it is a useful tool for optimizing the patient dose-image quality relationship

  17. Thermal equilibrium properties of an intense relativistic electron beam

    International Nuclear Information System (INIS)

    Davidson, R.C.; Uhm, H.S.

    1979-01-01

    The thermal equilibrium properties of an intense relativistic electron beam with distribution function f 0 /sub b/=Z -1 /sub b/exp[-(H-β/sub b/cP/sub z/-ω/sub b/P/sub theta/) /T] are investigated. This choice of f 0 /sub b/ allows for a mean azimuthal rotation of the beam electrons (when ω/sub b/not =0), and corresponds to an important generalization of the distribution function first analyzed by Bennett. Beam equilibrium properties, including axial velocity profile V 0 /sub z/b(r), azimuthal velocity profile V 0 /sub thetab/(r), beam temperature profile T 0 /sub b/(r), beam density profile n 0 /sub b/(r), and equilibrium self-field profiles, are calculated for a broad range of system parameters. For appropriate choice of beam rotation velocity ω/sub b/, it is found that radially confined equilibrium solutions [with n 0 /sub b/(r→infinity) =0] exist even in the absence of a partially neutralizing ion background that weakens the repulsive space-charge force. The necessary and sufficient conditions for radially confined equilibria are ω - /sub b/ + /sub b/ for 0 2 /sub b/p /ω 2 /sub b/c) (1-f-β 2 /sub b/) 2 /sub b/p/ω 2 /sub b/c) (1-f-β 2 /sub b/) <0

  18. Magnetized whirls in plasma focus discharges

    International Nuclear Information System (INIS)

    Witalis, E.

    1979-05-01

    The plasma focus is briefly described with emphasis on its capabilities as a neutron source. The filamentary whirl structures observed in the discharge plasma are described. Starting with a simple, early and particularly well established case of vorticity imparted by a rotational electric field to the plasma in MHD generators, a general derivation is then outlined proving that such magnetically induced rotation is a general feature for the normally Hall-conducting magnetized plasma. Physical interpretations of the effect are given and objections to it are critically reviewed as is also a theory proposing radiation cooling as the cause of plasma filamentation. A more detailed derivation based essentially on the consistent description of the motion and the field generation of the charged plasma particles yields a theoretical model where the specific features of magnetically compressed plasmas are found. In particular, the ion collisionless skin depth is obtained as the key length parameter. This length is identified as roughly the whirl radius. In conjunction with a generalized Bennett relation theoretical whirl properties are predicted and found to agree with observations. Mechanisms that relate the whirls to nuclear fusion reaction conditions are tentatively indicated. (author)

  19. 2004 assessment of habitat improvements in Dinosaur Reservoir

    Energy Technology Data Exchange (ETDEWEB)

    Blackman, B.G.; Cowie, D.M.

    2005-01-15

    Formed in 1979 after the completion of the Peace Canyon Dam, Dinosaur Reservoir is 21 km long and backs water up to the tailrace of W.A.C. Bennett Dam. BC Hydro has funded studies to evaluate fish stocking programs and assess habitat limitations and potential enhancements as part of a water licence agreement. The Peace/Williston Fish and Wildlife Compensation Programs (PWFWCP) have undertaken a number of projects to address fish habitat limitations, entrainment and stocking assessments as a result of recommendations stemming from these studies. It was determined that existing baseline fish data was needed in order to evaluate the effectiveness of these activities. A preliminary boat electro-fishing program which was started in October 2001, noted that a propensity for rainbow trout to concentrate near woody debris. In response, a program was started in 2002 to add woody debris to embayment areas throughout the reservoir. These enhanced woody debris structures are located in small sheltered bays and consist of a series of large trees cabled together and anchored to the shore. The area between the cabled trees and the shoreline is filled with woody debris and root wads collected from along the shoreline. The 2004 assessment of habitat improvements in Dinosaur Reservoir presents the findings from a study that compares the number of fish captured using trap nets, angling, and minnow traps, at the woody debris structures to sites with similar physical characteristics where woody debris had not been added. 17 refs., 5 tabs., 4 figs.

  20. Revisiting Folk Moral Realism.

    Science.gov (United States)

    Pölzler, Thomas

    2017-01-01

    Moral realists believe that there are objective moral truths. According to one of the most prominent arguments in favour of this view, ordinary people experience morality as realist-seeming, and we have therefore prima facie reason to believe that realism is true. Some proponents of this argument have claimed that the hypothesis that ordinary people experience morality as realist-seeming is supported by psychological research on folk metaethics. While most recent research has been thought to contradict this claim, four prominent earlier studies (by Goodwin and Darley, Wainryb et al., Nichols, and Nichols and Folds-Bennett) indeed seem to suggest a tendency towards realism. My aim in this paper is to provide a detailed internal critique of these four studies. I argue that, once interpreted properly, all of them turn out in line with recent research. They suggest that most ordinary people experience morality as "pluralist-" rather than realist-seeming, i.e., that ordinary people have the intuition that realism is true with regard to some moral issues, but variants of anti-realism are true with regard to others. This result means that moral realism may be less well justified than commonly assumed.

  1. An Empty Table and an Empty Boat: Empathic Encounters with Refugee Experiences in Intermedial Installation Art

    Directory of Open Access Journals (Sweden)

    Houwen Janna

    2016-12-01

    Full Text Available This essay is an inquiry into two intermedial installations that address the experiences of people on the run from war or poverty, yet overtly hinder and problematize the viewer’s identification with the depicted refugees. By doing so, Friday Table (2013 by art collective Foundland, and Isaac Julien’s video installation Ten Thousand Waves (2010 differ from the many contemporary discourses dealing with the so-called refugee crisis that suggest a blind assumption of empathy’s benevolence. Taking theoretical texts concerning the relation between empathy, politics and the (lens-based representation of refugees by, for instance, Slavoj Zizek (2016 and Jill Bennett (2005 as a starting point, I read Friday Table and Ten Thousand Waves as reflections on the pitfalls as well as the critical political possibilities of empathy in contemporary debates on refugees. Moreover, I argue that the two lens-based installations in question are able to examine the limits of empathy and identification with refugees through their common denominator: intermediality. Both Friday Table and Ten Thousand Waves combine lens-based media (photography, video and film with non-lens-based medial forms such as drawings, graphs and calligraphy. As I will demonstrate, the interplay between different media is decisive when it comes to the way in which the three works of art produce, manage and reflect on the relation between spectators and depicted refugees.

  2. The need for power, need for influence, sense of power, and directiveness in female and male superiors and subordinates

    Directory of Open Access Journals (Sweden)

    Dagna Kocur

    2017-12-01

    Full Text Available Background The purpose of the study was to examine the phenomenon of power within an organisation from the vantage point of gender, the occupied position, earnings, and the number of subordinates. Participants and procedure The sample group comprised 107 female and 98 male participants. The mean age was 42.14 years (SD = 11.73. The study covered 100 superiors and 105 subordinates. The research tools were: the Need for Power and Influence Questionnaire (Bennett, 1988, the Personal Sense of Power Scale (Anderson, John, & Keltner, 2012, and the Directiveness Scale SD (Ray, 1976. Results The superiors scored significantly higher on the need for power, need for influence, and directiveness. They also scored higher in terms of the need for power in relations with other people, with colleagues, and in superior-subordinate relations. The number of male leaders was conspicuously greater than the number of female leaders. Furthermore, women had fewer subordinates than men and earned less than men. Female participants scored lower on the sense of power and the need for power scales. Conclusions Occupying either an executive or subordinate position differentiates between women and men in terms of sense of power in interpersonal relationships. The findings on sense of power in the professional context may be applied in organisational psychology in order to increase employees’ competence and qualifications.

  3. Bike2Work 2016 is over – keep on pedalling!

    CERN Multimedia

    Kathryn Coldham

    2016-01-01

    142 CERN teams cycled more than twice around the Earth in the thirteenth year of Switzerland’s Bike2Work initiative.   Teams cycle to work at CERN’s Meyrin site in June, as part of Bike2Work 2016. (Image: Sophia Bennett/CERN) A record number of 142 CERN teams battled June rain to achieve ninth place in this year’s SwissBike2Work competition, in terms of the number of participating teams. Close to 54,000 employees from more than 1700 companies and organisations took part in this annual, national campaign, launched in 2004. It aims to encourage commuters to grab a helmet and travel on two wheels, improving fitness and reducing congestion on the roads. Overall, the CERN teams cycled 97,091 kilometres; amounting to a 15,000 kg reduction in carbon dioxide emissions, compared to what would have been produced by cars. A 15% participation rate also placed us third among companies with 1000-5000 employees. Both the École polytechnique féd&e...

  4. Intercultural Competence – Key Competence of Multicultural Teams

    Directory of Open Access Journals (Sweden)

    Diana Bebenova - Nikolova

    2014-08-01

    Full Text Available The article deals with intercultural competence of multicultural teams elaborating European projects. Firstly, it discusses basic theoretical aspects of the related concepts: culture and intercultural competence, then presents its impact on multicultural team effectiveness and models for improving it. The article finds ground on studies of intercultural competence as a set of strategic, personal, social and professional competences. The paper uses the project cycle management theory and proves that in multi-ethnic surroundings, the project membersř communication skills might not be sufficient to generate mutual understanding. Provisionally, the study performed a standardized Internet survey on self-assessment of intercultural competence among 50 experts on European projects. Another applied approach is field observation (attendance and note-taking of the 5- day training "To become diplomats between cultures", based on Bennettřs theoretical model for "Development of Intercultural Sensitivity". A training model for improving intercultural competence of multicultural team members. Possible approach for improvement of project management of crossborder or trans-border funding programs. Building intercultural competence in European project management is important, timely and necessity-driven, especially under the framework of the Danube Region Strategy.

  5. A comparative analysis of optical and conventional axiography for the analysis of temporomandibular joint movements.

    Science.gov (United States)

    Wagner, Arne; Seemann, Rudolf; Schicho, Kurt; Ewers, Rolf; Piehslinger, Eva

    2003-11-01

    Currently available systems for pantographic tracing are heavy, bulky, and can interfere with jaw movements. This study describes the development and clinical application of optoelectronic axiography designed to overcome system inherent problems of conventional bulky frame-based registration axiography. The purpose of this study is the comparison of the newly developed system and conventional axiography. Three-dimensional recordings of condylar pathways were acquired by means of infrared digitizers interfaced to newly developed software. Ten distinct curves in each of 10 subjects were recorded by synchronous optoelectronic axiography (100 tracings) and by conventional axiography (100 tracings). Usually, two 3-dimensional (3D) light weight sensors are provisionally fixed to the facial surface of a maxillary and mandibular incisor by means of a single orthodontic bracket. To allow for direct comparison of all 100 pairs of curves in this study, the 3D sensors of the optoelectronic system were attached to the bulky double face-bow system of the axiograph. The conformity of tracings (protrusion, opening/closing, mediotrusion, and laterotrusion) was evaluated by means of correlation analysis. Resulting axiographic recordings from both systems were evaluated by 3 experts (dentists, experienced in axiographic investigations, who were blind to the source of the data), focusing on standardized qualitative criteria of the recordings (homogeneity/smoothness, pathway-characteristics, excursion, and left/right-symmetry). After testing for normal distribution of the ratio scaled data (length of pathway, horizontal condylar inclination [HCI], Bennett angle) with the Kolmogoroff-Smirnov test (alpha=.01), axiographic curves were quantitatively compared by means of an intraclass correlation coefficient ([ICC] alpha =.01). The Wilcoxon test (alpha=.01) was used to evaluate equivalence of ordinally scaled values (homogeneity of tracings) and Cohen's Kappa was used to compare excursion

  6. The impact of mixing lithologies in clast shape measurements on its discriminatory power - a case study from a temperate Alpine glacier

    Science.gov (United States)

    Lukas, S.; Coray, S.; Graf, A.; Schlüchter, C.

    2009-04-01

    Clast shape measurements have become a standard tool in the reconstruction of transport histories in a variety of depositional settings (Demir et al., 2009). In glacial environments, the combined use of clast form and roundness has become an established tool in the past 15 years or so, and environments where this tool has been used range from temperate and polythermal to cold-based glaciers. In addition, the method has been transferred to palaeo-environments where the knowledge gained in aforementioned studies has taken the degree of accuracy in sedimentological investigations to a higher level (cf. Lukas et al., 2009, and references therein). All of these studies use the approach originally advocated by Benn and Ballantyne (1994), but perhaps the most notable difference is that some researchers mix different lithologies within their samples of 50 clasts. However, the role of lithology on clast shape in a glacial environment has never been systematically analysed, except for one pilot study (Bennett et al., 1997). Likewise, some previous studies have highlighted the problem of distinguishing between fluvial and subglacially-transported clasts using co-variance plots, and thus, more work is needed in both these respects. We here present a set of clast shape data gathered from the foreland and surrounding slopes of temperate Findelengletscher, Switzerland, to (a) test the versatility of clast shape in distinguishing of populations of clasts transported along different paths and (b) assess the role of lithology on the discriminatory potential of the method, most notably using co-variance plots. The main result of this pilot study is that the sampled lithology has a marked effect on clast shape results within the same control group. This is manifest in an overlap of envelopes in both RA- or RWR-C40-covariance plots. If kept separate, all three lithologies display separate control envelopes, in this case in RWR-C40-co-variance plots, thus keeping their discriminatory

  7. Response of the brain to enrichment

    Directory of Open Access Journals (Sweden)

    MARIAN C. DIAMOND

    2001-06-01

    Full Text Available Before 1960, the brain was considered by scientists to be immutable, subject only to genetic control. In the early sixties, however, investigators were seriously speculating that environmental influences might be capable of altering brain structure. By 1964, two research laboratories proved that the morphology and chemistry or physiology of the brain could be experientially altered (Bennett et al. 1964, Hubel and Wiesel 1965. Since then, the capacity of the brain to respond to environmental input, specifically "enrichment,'' has become an accepted fact among neuroscientists, educators and others. In fact, the demonstration that environmental enrichment can modify structural components of the rat brain at any age altered prevailing presumptions about the brain's plasticity (Diamond et al. 1964, Diamond 1988. The cerebral cortex, the area associated with higher cognitive processing, is more receptive than other parts of the brain to environmental enrichment. The message is clear: Although the brain possesses a relatively constant macrostructural organization, the ever-changing cerebral cortex, with its complex microarchitecture of unknown potential, is powerfully shaped by experiences before birth, during youth and, in fact, throughout life. It is essential to note that enrichment effects on the brain have consequences on behavior. Parents, educators, policy makers, and individuals can all benefit from such knowledge.Antes de 1960, os cientistas consideravam o encéfalo como imutável, sujeito apenas ao controle genético. Entretanto, no início dos anos 60, alguns pesquisadores especulavam seriamente que influências ambientais podiam ser capazes de alterar a estrutura cerebral. Por volta de 1964, dois laboratórios de pesquisa demonstraram que a morfologia e a química ou a fisiologia do cérebro poderia ser modificada pela experiência (Bennett et al. 1964, Hubel e Wiesel 1965. Desde então, a capacidade do cérebro a responder para responder a

  8. La imagen de Venezuela en la prensa española. Una visión desde los diarios: El País, El Mundo, ABC y La Vanguardia Venezuela's image in the Spanish press. A view from the newspapers: El Pais, El Mundo, ABC and La Vanguardia

    Directory of Open Access Journals (Sweden)

    Marianela Urdaneta García

    2011-01-01

    Full Text Available La presente investigación tiene como objetivo analizar el tratamiento periodístico que los diarios El País, El Mundo, ABC y La Vanguardia hacen sobre Venezuela para difundir y proyectar su imagen. Se utilizó el análisis de contenido sustentado en autores como: McCarteney, Butler y Bennett, (2008; González, (2008; Noya y col., (2007; Igartua y Humanes, (2004; Dhoest, (2004; Martínez y Díaz, (2003; Bodas y Gragoevic, (1994; entre otros. Como conclusión se obtuvo que los tres principales temas con los que se vinculó a Venezuela fueron la situación interna del país a causa de su sistema de gobierno (31,2%, la relación con los países latinoamericanos no miembros del ALBA (21,6%, relación con los países miembros del ALBA (19,7%. Hubo un predominio de la noticia como género periodístico (58,7%, no obstante se observó que en el 53,9% de las noticias publicadas el redactor hacía juicios de valores y que el 56% de las noticias difundidas tienen entre cero y una fuente, lo cual permite señalar que las informaciones publicadas son escuetas y sin profundidad periodística. En cuanto al tratamiento que se le dio a las informaciones difundidas sobre Venezuela se precisó que el 81,7% tuvieron una cobertura negativa y sólo en un 2,8% hubo un enfoque positivo. This research aims to study the various jobs that have been made about the construction of the country's image and branding country and then analyze the press coverage that the newspapers El Pais, El Mundo, ABC and La Vanguardia made on Venezuela to disseminate and project its image. It uses the content analysis supported by authors such as: Mccarteney, Butler and Bennett, (2008; González, (2008; Noya and col., (2007; Igartúa and Humanes, (2004; Dhoest, (2004; Martínez and Díaz, (2003; Bodas and Gragoevic, (1994, among others. As a conclusion was reached that the three major issues wich were linked to Venezuela the internal situation of the country due to the established system of

  9. Becoming ecological citizens: connecting people through performance art, food matter and practices

    Science.gov (United States)

    Roe, Emma; Buser, Michael

    2016-01-01

    Engaging the interest of Western citizens in the complex food connections that shape theirs’ and others’ personal wellbeing around issues such as food security and access is challenging. This article is critical of the food marketplace as the site for informing consumer behaviour and argues instead for arts-based participatory activities to support the performance of ecological citizens in non-commercial spaces. Following the ongoing methodological and conceptual fascination with performance, matter and practice in cultural food studies, we outline what the ecological citizen, formed through food’s agentive potential, does and could do. This is an ecological citizen, defined not in its traditional relation to the state but rather to the world of humans and non-humans whose lives are materially interconnected through nourishment. The article draws on the theories of Berlant, Latour, Bennett and Massumi. Our methodology is a collaborative arts-led research project that explored and juxtaposed diverse food practices with artist Paul Hurley, researchers, community partners, volunteers and participants in Bristol, UK. It centred on a 10-day exhibition where visitors were exposed to a series of interactive explorations with and about food. Our experience leads us to outline two steps for enacting ecological citizenship. The first step is to facilitate sensory experiences that enable the agential qualities of foodstuffs to shape knowledge making. The second is to create a space where people can perform, or relate differently, in unusual manners to food. Through participating in the project and visiting the exhibition, people were invited to respond not only as ‘ethical consumers’ but also as ‘ecological citizens’. This participatory approach to research can contribute to understandings of human-world entanglements. PMID:29708123

  10. REPRODUCTIVE BIOLOGY OF INVASIVE LIONFISH (PTEROIS SPP.

    Directory of Open Access Journals (Sweden)

    Patrick G Gardner

    2015-02-01

    Full Text Available Indo-Pacific lionfishes, Pterois volitans (Linnaeus, 1758 and Pterois miles (Bennett, 1828, native to the Pacific and Indian Oceans, respectively, were first observed in the western Atlantic off Florida in 1985. They have since spread and are established throughout the broader Caribbean region. Despite potentially devastating ecological and economic effects, information on key life history characteristics for lionfish in the invaded range is sparse. Objectives of this study were to quantify 1 periodicity in gonad development and spawning, 2 spawning frequency, 3 batch fecundity and 4 female size at maturity for fish from Little Cayman. Calculation of gonadosomatic indices, histological and macroscopic staging of gonads, and counts of hydrated oocytes were applied to determine reproductive characteristics. Higher gonadosomatic indices were recorded for females during periods of stable warm or cool water temperatures indicating that extreme temperatures did not constrain reproduction. Histological and macroscopic staging suggested that male and female lionfish were capable of reproducing year-round. However, higher gonadosomatic indices in females, as expected before spawning, were most pronounced in March/April and August. Based on the proportion of females containing hydrated oocytes, mature lionfish had the potential to spawn every 2–3 d. Ovaries of mature females contained 1800–41945 oocytes that were hydrated in preparation for spawning, with greater numbers of oocytes in larger females. Female lionfish matured at 189–190 mm total length. Parameters estimated in this study can improve outputs from population dynamic models, which will help resource managers design removals and other efforts to control invasive lionfish.

  11. Basis set expansion for inverse problems in plasma diagnostic analysis

    Science.gov (United States)

    Jones, B.; Ruiz, C. L.

    2013-07-01

    A basis set expansion method [V. Dribinski, A. Ossadtchi, V. A. Mandelshtam, and H. Reisler, Rev. Sci. Instrum. 73, 2634 (2002)], 10.1063/1.1482156 is applied to recover physical information about plasma radiation sources from instrument data, which has been forward transformed due to the nature of the measurement technique. This method provides a general approach for inverse problems, and we discuss two specific examples relevant to diagnosing fast z pinches on the 20-25 MA Z machine [M. E. Savage, L. F. Bennett, D. E. Bliss, W. T. Clark, R. S. Coats, J. M. Elizondo, K. R. LeChien, H. C. Harjes, J. M. Lehr, J. E. Maenchen, D. H. McDaniel, M. F. Pasik, T. D. Pointon, A. C. Owen, D. B. Seidel, D. L. Smith, B. S. Stoltzfus, K. W. Struve, W. A. Stygar, L. K. Warne, J. R. Woodworth, C. W. Mendel, K. R. Prestwich, R. W. Shoup, D. L. Johnson, J. P. Corley, K. C. Hodge, T. C. Wagoner, and P. E. Wakeland, in Proceedings of the Pulsed Power Plasma Sciences Conference (IEEE, 2007), p. 979]. First, Abel inversion of time-gated, self-emission x-ray images from a wire array implosion is studied. Second, we present an approach for unfolding neutron time-of-flight measurements from a deuterium gas puff z pinch to recover information about emission time history and energy distribution. Through these examples, we discuss how noise in the measured data limits the practical resolution of the inversion, and how the method handles discontinuities in the source function and artifacts in the projected image. We add to the method a propagation of errors calculation for estimating uncertainties in the inverted solution.

  12. Snake River Plain Play Fairway Analysis – Phase 1 Report

    Energy Technology Data Exchange (ETDEWEB)

    Shervais, John W. [Utah State Univ., Logan, UT (United States). Dept. of Geology; Glen, Jonathan M. [US Geological Survey, Menlo Park, CA (United States); Liberty, Lee M. [Boise State Univ., ID (United States). Center for Geophysical Investigation of the Shallow Subsurface; Dobson, Patrick [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Gasperikova, Erika [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-09-01

    The Snake River volcanic province (SRP) overlies a thermal anomaly that extends deep into the mantle; it represents one of the highest heat flow provinces in North America. Our goals for this Phase 1 study are to: (1) adapt the methodology of Play Fairway Analysis for geothermal exploration to create a formal basis for its application to geothermal systems, (2) assemble relevant data for the SRP from publicly available and private sources, and (3) build a geothermal play fairway model for the SRP and identify the most promising plays, using software tools that are standard in the petroleum industry. The success of play fairway analysis in geothermal exploration depends critically on defining a systematic methodology that is grounded in theory (as developed within the petroleum industry over the last two decades) and within the geologic and hydrologic framework of real geothermal systems. Our preliminary assessment of the data suggests that important undiscovered geothermal resources may be located in several areas of the SRP, including the western SRP (associated with buried lineaments defined by gravity or magnetic anomalies, and capped by extensive deposits of lacustrine sediment), at lineament intersections in the central SRP (along the Banbury-Hagerman trend NW of Twin Falls, and along the northern margin of the Mt Bennett Hills-Camas Prairie area), and along the margins of the eastern SRP. Additional high temperature resources are likely associated with rhyolite domes and crypto-domes in the eastern SRP, but are masked by shallow groundwater flow leading to low upper crustal heat flow values. These blind resources may be exploitable with existing deep drilling technology. Groundwater modeling planned for later phases of the PFA project will address whether temperatures at viable producing depths are sufficient to support electricity production.

  13. Crystallization kinetics and magnetic properties of FeSiCr amorphous alloy powder cores

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Hu-ping [School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063 (China); Wang, Ru-wu, E-mail: ruwuwang@hotmail.com [National Engineering Research Center For Silicon Steel, Wuhan 430080 (China); College of Materials Science and Metallurgical Engineering, Wuhan University of Science and Technology, Wuhan 430081 (China); Wei, Ding [School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074 (China); Zeng, Chun [National Engineering Research Center For Silicon Steel, Wuhan 430080 (China)

    2015-07-01

    The crystallization kinetics of FeSiCr amorphous alloy, characterized by the crystallization activation energy, Avrami exponent and frequency factor, was studied by non-isothermal differential scanning calorimetric (DSC) measurements. The crystallization activation energy and frequency factor of amorphous alloy calculated from Augis–Bennett model were 476 kJ/mol and 5.5×10{sup 18} s{sup −1}, respectively. The Avrami exponent n was calculated to be 2.2 from the Johnson–Mehl–Avrami (JMA) equation. Toroid-shaped Fe-base amorphous powder cores were prepared from the commercial FeSiCr amorphous alloy powder and subsequent cold pressing using binder and insulation. The characteristics of FeSiCr amorphous alloy powder and the effects of compaction pressure and insulation content on the magnetic properties, i.e., effective permeability μ{sub e}, quality factor Q and DC-bias properties of FeSiCr amorphous alloy powder cores, were investigated. The FeSiCr amorphous alloy powder cores exhibit a high value of quality factor and a stable permeability in the frequency range up to 1 MHz, showing superior DC-bias properties with a “percent permeability” of more than 82% at H=100 Oe. - Highlights: • The crystallization kinetics of FeSiCr amorphous alloy was investigated. • The FeSiCr powder cores exhibit a high value of Q and a stable permeability. • The FeSiCr powder cores exhibit superior DC-bias properties.

  14. Gething Formation in northeast BC : the next unconventional natural gas resource blockbuster?

    Energy Technology Data Exchange (ETDEWEB)

    Karst, R.; Kleiner, S. [Canadian Spirit Resources Inc., Calgary, AB (Canada)

    2006-07-01

    The stratigraphy and geologic setting of the Gething Formation in northeastern British Columbia was presented. This rock formation hosts a huge hybrid natural gas resource including natural gas from coal (NGC), shale gas and tight sands concentrated in 150-250 metres of stratigraphy at depths less than 1000 metres. The formation has good access, a plains setting, nearby service centres and a large pipeline with spare capacity. This presentation described how adsorption and free-gas compression contributed to the creation of the large natural gas deposits. In addition to a range of geological maps, geologic cross sections and stratigraphic sections, this presentation included an illustration of a simplified Gething structure and a Mannville coal ranking map. A composite section of the Gething Formation before construction of the WAC Bennett Dam in the Peace River Canyon was also provided. In 1982, Utah Mines Ltd. correlated the fluvial and upper delta plain of the Gething Formation with a pro-grading sea environment. This presentation also included a coal desorption summary of proximate analysis used for dry ash free gas content. An adsorption isotherm revealed that the Gething coal is saturated or slightly undersaturated. The coaly shale with significant carbon in the form of disseminated particles is commonly associated with coal seams. Drilling activity in the Farrel Creek Project was also summarized. The estimated gas-in-place for the Gething coals is estimated at 12-16 Bcf per section, while gas-in-place for the Gething shales is estimated at 11-17 Bcf per section. However, the key unknown is produceability, as the pilot production is ongoing without any assigned reserves thus far. tabs., figs.

  15. Classification and clinical assessment

    Directory of Open Access Journals (Sweden)

    F. Cantini

    2012-06-01

    Full Text Available There are at least nine classification criteria for psoriatic arthritis (PsA that have been proposed and used in clinical studies. With the exception of the ESSG and Bennett rules, all of the other criteria sets have a good performance in identifying PsA patients. As the CASPAR criteria are based on a robust study methodology, they are considered the current reference standard. However, if there seems to be no doubt that they are very good to classify PsA patients (very high specificity, they might be not sensitive enough to diagnose patients with unknown early PsA. The vast clinical heterogeneity of PsA makes its assessment very challenging. Peripheral joint involvement is measured by 78/76 joint counts, spine involvement by the instruments used for ankylosing spondylitis (AS, dactylitis by involved digit count or by the Leeds dactylitis index, enthesitis by the number of affected entheses (several indices available and psoriasis by the Psoriasis Area and Severity Index (PASI. Peripheral joint damage can be assessed by a modified van der Heijde-Sharp scoring system and axial damage by the methods used for AS or by the Psoriatic Arthritis Spondylitis Radiology Index (PASRI. As in other arthritides, global evaluation of disease activity and severity by patient and physician and assessment of disability and quality of life are widely used. Finally, composite indices that capture several clinical manifestations of PsA have been proposed and a new instrument, the Psoriatic ARthritis Disease Activity Score (PASDAS, is currently being developed.

  16. Computational scheme for pH-dependent binding free energy calculation with explicit solvent.

    Science.gov (United States)

    Lee, Juyong; Miller, Benjamin T; Brooks, Bernard R

    2016-01-01

    We present a computational scheme to compute the pH-dependence of binding free energy with explicit solvent. Despite the importance of pH, the effect of pH has been generally neglected in binding free energy calculations because of a lack of accurate methods to model it. To address this limitation, we use a constant-pH methodology to obtain a true ensemble of multiple protonation states of a titratable system at a given pH and analyze the ensemble using the Bennett acceptance ratio (BAR) method. The constant pH method is based on the combination of enveloping distribution sampling (EDS) with the Hamiltonian replica exchange method (HREM), which yields an accurate semi-grand canonical ensemble of a titratable system. By considering the free energy change of constraining multiple protonation states to a single state or releasing a single protonation state to multiple states, the pH dependent binding free energy profile can be obtained. We perform benchmark simulations of a host-guest system: cucurbit[7]uril (CB[7]) and benzimidazole (BZ). BZ experiences a large pKa shift upon complex formation. The pH-dependent binding free energy profiles of the benchmark system are obtained with three different long-range interaction calculation schemes: a cutoff, the particle mesh Ewald (PME), and the isotropic periodic sum (IPS) method. Our scheme captures the pH-dependent behavior of binding free energy successfully. Absolute binding free energy values obtained with the PME and IPS methods are consistent, while cutoff method results are off by 2 kcal mol(-1) . We also discuss the characteristics of three long-range interaction calculation methods for constant-pH simulations. © 2015 The Protein Society.

  17. Coordinated airborne and satellite measurements of equatorial plasma depletions

    International Nuclear Information System (INIS)

    Weber, E.J.; Brinton, H.C.; Buchau, J.; Moore, J.G.

    1982-01-01

    A series of experiments was conducted in December 1979 to investigate the structure of plasma depletions in the low latitude, nightime ionosphere. The measurements included all sky imaging photometer (ASIP), ionosonde and amplitude scintillation observations from the AFGL Airborne Ionospheric Observatory (AIO), and in situ ion density measurements from the Atmosphere Explorer (AE-E) Bennett Ion Mass Spectrometer (BIMS). The AIO performed two flights along the Ascension Island (-18 0 MLAT) magnetic meridian: one in the southern hemisphere and one near the Ascension conjugate point in the northern hemisphere. During these flights, measurements from the AE-E satellite at 434 km altitude are compared with simultaneous remote ionospheric measurements from the AIO. Density biteouts of approximately one order of magnitude in the dominant ion O + , were mapped to lower altitudes along magnetic field lines for comparison with 6300-A and 7774-A O I airglow depletions. Because of the different airglow production mechanisms (dissociative recombination of O +2 for 6300 A and radiative recombination of O + for 7774 A) the 6300-A depletions reflect plasma depletions near the bottomside of the F layer, while those at 7774 A are located near the peak of the layer. The O + biteouts map directly into the 7774-A airglow depletions in the same hemisphere and also when traced into the opposite hemisphere, which indicates magnetic flux tube alignment over north-south distances of approx.2220 km. The 6300-A (bottomside) depletions are wider in longitude than the 7774-A (F-peak) depletions near the equatorward edge of the Appleton anomaly. This difference in topside and bottomside structure is used to infer large-scale structure near the anomaly and to relate this to structure, commonly observed near the magnetic equator by the ALTAIR radar

  18. Team Resilience Training in the Workplace: E-Learning Adaptation, Measurement Model, and Two Pilot Studies.

    Science.gov (United States)

    Bennett, Joel B; Neeper, Michael; Linde, Brittany D; Lucas, Gale M; Simone, Lindsay

    2018-05-02

    The majority of resilience interventions focus on the individual. Workplace resilience is a growing field of research. Given the ever-increasing interconnectedness in businesses, teamwork is a guarantee. There is also growing recognition that resilience functions at the team level. The objective of our work was to address three shortcomings in the study of workplace resilience interventions: lack of interventions focusing on group-level or team resilience, the need for brief interventions, and the need for more theoretical precision in intervention studies. The authors took an established evidence-based program (Team Resilience) and modified it based on these needs. A working model for brief intervention evaluation distinguishes outcomes that are proximal (perceptions that the program improved resilience) and distal (dispositional resilience). A total of 7 hypotheses tested the model and program efficacy. Two samples (n=118 and n=181) of engineering firms received the Web-based training and provided immediate reactions in a posttest-only design. The second sample also included a control condition (n=201). The findings support the model and program efficacy. For example, workplace resilience was greater in the intervention group than in the control group. Other findings suggest social dissemination effects, equal outcomes for employees at different stress levels, and greater benefit for females. This preliminary research provides evidence for the capabilities of e-learning modules to effectively promote workplace resilience and a working model of team resilience. ©Joel B Bennett, Michael Neeper, Brittany D Linde, Gale M Lucas, Lindsay Simone. Originally published in JMIR Mental Health (http://mental.jmir.org), 02.05.2018.

  19. Efficient Strategy for the Calculation of Solvation Free Energies in Water and Chloroform at the Quantum Mechanical/Molecular Mechanical Level.

    Science.gov (United States)

    Wang, Meiting; Li, Pengfei; Jia, Xiangyu; Liu, Wei; Shao, Yihan; Hu, Wenxin; Zheng, Jun; Brooks, Bernard R; Mei, Ye

    2017-10-23

    The partitioning of solute molecules between immiscible solvents with significantly different polarities is of great importance. The polarization between the solute and solvent molecules plays an essential role in determining the solubility of the solute, which makes computational studies utilizing molecular mechanics (MM) rather difficult. In contrast, quantum mechanics (QM) can provide more reliable predictions. In this work, the partition coefficients of the side chain analogs of some amino acids between water and chloroform were computed. The QM solvation free energies were calculated indirectly via a series of MM states using the multistate Bennett acceptance ratio (MBAR) and the MM-to-QM corrections were applied at the two endpoints using thermodynamic perturbation (TP). Previously, it has been shown (Jia et al. J. Chem. Theory Comput. 2016, 12, 499-511) that this method provides the minimal variance in the results without running QM simulations. However, if there is insufficient overlap in phase space between the MM and QM Hamiltonians, this method fails. In this work, we propose, for the first time, a quantity termed the reweighting entropy that serves as a metric for the reliability of the TP calculations. If the reweighting entropy is below a certain threshold (0.65 for the solvation free energy calculations in this work), this MM-to-QM correction should be avoided and two alternative methods can be employed by either introducing a semiempirical state or conducting nonequilibrium simulations. However, the results show that the QM methods are not guaranteed to yield better results than the MM methods. Further improvement of the QM methods are imperative, especially the treatment of the van der Waals and the electrostatic interactions between the QM region and the MM region in the first shell. We also propose a scheme for the calculation of the van der Waals parameters for the solute molecules in nonaqueous solvent, which improves the quality of the

  20. Radiological and pathological features of nonpalpable breast lesions marked with harpoon guided by mammography as a method for the diagnosis of early breast cancer: descriptive retrospective study of the period between January 2009 and May 2010 at the Hospital San Juan de Dios

    International Nuclear Information System (INIS)

    Diaz Silva, Lucia

    2011-01-01

    A retrospective study, descriptive was performed, whose main objective has been to analyze the radiological and pathological features of nonpalpable breast lesions for which surgical biopsy was performed guided by harpoon in the Servicio de Radiologia at the Hospital San Juan de Dios during the period between January 2009 and May 2010. The study has consisted in reviewing of all biopsies guided radio by harpoon made during this period. For each procedure was recorded the classification BI-RADS, pathological anatomy reports and epidemiological data of patients. The analysis has included the variables of age, presence or absence of previous mammograms for comparison, presence or absence of menopause, presence of early menarche (by reference to women with menarche before age 12), parity of the patients, history of breastfeeding, use or nonuse of hormone replacement therapy, personal history of relevance and a positive history for breast cancer in patients in first, second or third degree of consanguinity. A total of 129 markings were performed in the study period. Three patients were excluded because the classification BI-RADS given was 3 or 0, in which cases the biopsy is not indicated. All markings were done in an analog mammography brand Bennett and chair designed for positioning patients. Prior to the biopsy, the technical specialist in mammography interviewed patients to complete the epidemiological data sheet. Following the verification of the correct placement on the harpoon, the patients were carried to operating room for the realization of the biopsy. Subsequently, the presence or absence of surgical specimen was evaluated to verify the proper extraction of the lesion under study. (author) [es

  1. Rapid Computation of Thermodynamic Properties over Multidimensional Nonbonded Parameter Spaces Using Adaptive Multistate Reweighting.

    Science.gov (United States)

    Naden, Levi N; Shirts, Michael R

    2016-04-12

    We show how thermodynamic properties of molecular models can be computed over a large, multidimensional parameter space by combining multistate reweighting analysis with a linear basis function approach. This approach reduces the computational cost to estimate thermodynamic properties from molecular simulations for over 130,000 tested parameter combinations from over 1000 CPU years to tens of CPU days. This speed increase is achieved primarily by computing the potential energy as a linear combination of basis functions, computed from either modified simulation code or as the difference of energy between two reference states, which can be done without any simulation code modification. The thermodynamic properties are then estimated with the Multistate Bennett Acceptance Ratio (MBAR) as a function of multiple model parameters without the need to define a priori how the states are connected by a pathway. Instead, we adaptively sample a set of points in parameter space to create mutual configuration space overlap. The existence of regions of poor configuration space overlap are detected by analyzing the eigenvalues of the sampled states' overlap matrix. The configuration space overlap to sampled states is monitored alongside the mean and maximum uncertainty to determine convergence, as neither the uncertainty or the configuration space overlap alone is a sufficient metric of convergence. This adaptive sampling scheme is demonstrated by estimating with high precision the solvation free energies of charged particles of Lennard-Jones plus Coulomb functional form with charges between -2 and +2 and generally physical values of σij and ϵij in TIP3P water. We also compute entropy, enthalpy, and radial distribution functions of arbitrary unsampled parameter combinations using only the data from these sampled states and use the estimates of free energies over the entire space to examine the deviation of atomistic simulations from the Born approximation to the solvation free

  2. Newly Diagnosed Breast Cancer: Comparison of Contrast-enhanced Spectral Mammography and Breast MR Imaging in the Evaluation of Extent of Disease.

    Science.gov (United States)

    Lee-Felker, Stephanie A; Tekchandani, Leena; Thomas, Mariam; Gupta, Esha; Andrews-Tang, Denise; Roth, Antoinette; Sayre, James; Rahbar, Guita

    2017-11-01

    Purpose To compare the diagnostic performances of contrast material-enhanced spectral mammography and breast magnetic resonance (MR) imaging in the detection of index and secondary cancers in women with newly diagnosed breast cancer by using histologic or imaging follow-up as the standard of reference. Materials and Methods This institutional review board-approved, HIPAA-compliant, retrospective study included 52 women who underwent breast MR imaging and contrast-enhanced spectral mammography for newly diagnosed unilateral breast cancer between March 2014 and October 2015. Of those 52 patients, 46 were referred for contrast-enhanced spectral mammography and targeted ultrasonography because they had additional suspicious lesions at MR imaging. In six of the 52 patients, breast cancer had been diagnosed at an outside institution. These patients were referred for contrast-enhanced spectral mammography and targeted US as part of diagnostic imaging. Images from contrast-enhanced spectral mammography were analyzed by two fellowship-trained breast imagers with 2.5 years of experience with contrast-enhanced spectral mammography. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value were calculated for both imaging modalities and compared by using the Bennett statistic. Results Fifty-two women with 120 breast lesions were included for analysis (mean age, 50 years; range, 29-73 years). Contrast-enhanced spectral mammography had similar sensitivity to MR imaging (94% [66 of 70 lesions] vs 99% [69 of 70 lesions]), a significantly higher PPV than MR imaging (93% [66 of 71 lesions] vs 60% [69 of 115 lesions]), and fewer false-positive findings than MR imaging (five vs 45) (P contrast-enhanced spectral mammography depicted 11 of the 11 secondary cancers (100%) and MR imaging depicted 10 (91%). Conclusion Contrast-enhanced spectral mammography is potentially as sensitive as MR imaging in the evaluation of extent of disease in newly diagnosed

  3. Human Factors in Space Exploration

    Science.gov (United States)

    Jones, Patricia M.; Fiedler, Edna

    2010-01-01

    The exploration of space is one of the most fascinating domains to study from a human factors perspective. Like other complex work domains such as aviation (Pritchett and Kim, 2008), air traffic management (Durso and Manning, 2008), health care (Morrow, North, and Wickens, 2006), homeland security (Cooke and Winner, 2008), and vehicle control (Lee, 2006), space exploration is a large-scale sociotechnical work domain characterized by complexity, dynamism, uncertainty, and risk in real-time operational contexts (Perrow, 1999; Woods et ai, 1994). Nearly the entire gamut of human factors issues - for example, human-automation interaction (Sheridan and Parasuraman, 2006), telerobotics, display and control design (Smith, Bennett, and Stone, 2006), usability, anthropometry (Chaffin, 2008), biomechanics (Marras and Radwin, 2006), safety engineering, emergency operations, maintenance human factors, situation awareness (Tenney and Pew, 2006), crew resource management (Salas et aI., 2006), methods for cognitive work analysis (Bisantz and Roth, 2008) and the like -- are applicable to astronauts, mission control, operational medicine, Space Shuttle manufacturing and assembly operations, and space suit designers as they are in other work domains (e.g., Bloomberg, 2003; Bos et al, 2006; Brooks and Ince, 1992; Casler and Cook, 1999; Jones, 1994; McCurdy et ai, 2006; Neerincx et aI., 2006; Olofinboba and Dorneich, 2005; Patterson, Watts-Perotti and Woods, 1999; Patterson and Woods, 2001; Seagull et ai, 2007; Sierhuis, Clancey and Sims, 2002). The human exploration of space also has unique challenges of particular interest to human factors research and practice. This chapter provides an overview of those issues and reports on sorne of the latest research results as well as the latest challenges still facing the field.

  4. GENETIC BASIS OF ACTIVITY METABOLISM. I. INHERITANCE OF SPEED, STAMINA, AND ANTIPREDATOR DISPLAYS IN THE GARTER SNAKE THAMNOPHIS SIRTALIS.

    Science.gov (United States)

    Garland, Theodore

    1988-03-01

    Recent conceptual advances in physiological ecology emphasize the potential selective importance of whole-animal performance. Empirical studies of locomotor performance in reptiles have revealed surprising amounts of individual variation in speed and stamina. The present study is the first in a series examining the genetic basis of variation in locomotor performance, activity metabolism, and associated behaviors in garter snakes. Maximal sprint crawling speed, treadmill endurance, and antipredator displays (Arnold and Bennett, 1984; exhibited as snakes reached exhaustion on the treadmill) were measured for approximately six offspring (presumed to be full siblings) from each of 46 wild-caught gravid garter snakes (Thamnophis sirtalis). Each character was measured on two days; all were individually repeatable. Correlations of these characters with body mass, snout-vent length, age at testing, litter size, dam mass, and dam snout-vent length were removed by computing residuals from multiple-regression equations. These residuals were used in subsequent genetic analyses. Approximate coefficients of variation of residuals were 17% for speed, 48% for endurance, and 31% for antipredator displays. Broad-sense heritabilities were significant for all characters: speed h 2 = 0.58; stamina h 2 = 0.70; antipredator display h 2 = 0.42. All three residual characters showed positive and statistically significant phenotypic correlations (r = 0.19-0.36). Genetic correlations (estimated and tested by restricted maximum likelihood) among residuals were positive and highly significant between speed and endurance (0.58), but nonsignificant between speed and antipredator display (0.43), and between endurance and antipredator display (0.26). All environmental correlations were nonsignificant. These data suggest that, contrary to expectations based on previous physiological studies, there may be no necessary evolutionary trade-off between speed and stamina in these animals. This tentative

  5. Generation of tunable, high repetition rate frequency combs with equalized spectra using carrier injection based silicon modulators

    Science.gov (United States)

    Nagarjun, K. P.; Selvaraja, Shankar Kumar; Supradeepa, V. R.

    2016-03-01

    High repetition-rate frequency combs with tunable repetition rate and carrier frequency are extensively used in areas like Optical communications, Microwave Photonics and Metrology. A common technique for their generation is strong phase modulation of a CW-laser. This is commonly implemented using Lithium-Niobate based modulators. With phase modulation alone, the combs have poor spectral flatness and significant number of missing lines. To overcome this, a complex cascade of multiple intensity and phase modulators are used. A comb generator on Silicon based on these principles is desirable to enable on-chip integration with other functionalities while reducing power consumption and footprint. In this work, we analyse frequency comb generation in carrier injection based Silicon modulators. We observe an interesting effect in these comb generators. Enhanced absorption accompanying carrier injection, an undesirable effect in data modulators, shapes the amplitude here to enable high quality combs from a single modulator. Thus, along with reduced power consumption to generate a specific number of lines, the complexity has also been significantly reduced. We use a drift-diffusion solver and mode solver (Silvaco TCAD) along with Soref-Bennett relations to calculate the variations in refractive indices and absorption of an optimized Silicon PIN - waveguide modulator driven by an unbiased high frequency (10 Ghz) voltage signal. Our simulations demonstrate that with a device length of 1 cm, a driving voltage of 2V and minor shaping with a passive ring-resonator filter, we obtain 37 lines with a flatness better than 5-dB across the band and power consumption an order of magnitude smaller than Lithium-Niobate modulators.

  6. Neuropsychological assessment, neuroimaging, and neuropsychiatric evaluation in pediatric and adult patients with sickle cell disease (SCD

    Directory of Open Access Journals (Sweden)

    Christopher L Edwards

    2007-01-01

    Full Text Available Christopher L Edwards1, Renee Dunn Raynor1, Miriam Feliu1, Camela McDougald1, Stephanie Johnson2, Donald Schmechel3, Mary Wood1, Gary G Bennett4, Patrick Saurona5, Melanie Bonner1, Chante’ Wellington1, Laura M DeCastro6, Elaine Whitworth6, Mary Abrams6, Patrick Logue1, Lekisha Edwards1, Salutario Martinez7, Keith E Whitfield81Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, NC, USA; 2American Psychological Association, Science Directorate, Washington, DC, USA; 3Department of Medicine, Division of Neurology, Duke University Medical Center, Durham, NC, USA; 4Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA, USA; 5Taub Institute For Research on Alzheimer’s Disease and The Aging Brain, Columbia University, New York, NY, USA; 6Department of Medicine, Division of Hematology, Duke University Medical Center, Durham, NC, USA; 7Department of Radiology, Duke University Medical Center, Durham, NC, USA; 8Duke University, Durham, NC, USAAbstract: Traditionally, neuropsychological deficits due to Sickle Cell Disease (SCD have been understudied in adults. We have begun to suspect, however, that symptomatic and asymptomatic Cerebrovascular Events (CVE may account for an alarming number of deficits in this population. In the current brief review, we critically evaluated the pediatric and adult literatures on the neurocognitive effects of SCD. We highlighted the studies that have been published on this topic and posit that early detection of CVE via neurocognitive testing, neuropsychiatric evaluations, and neuroimaging may significantly reduce adult cognitive and functional morbidities.Keywords: cerebral vascular event, neuropsychological assessment, sickle cell disease, neuroimaging

  7. Long pulse, plasma cathode E-gun

    International Nuclear Information System (INIS)

    Goebel, D.M.; Schumacher, R.W.; Watkins, R.M.

    1993-01-01

    A unique, long-pulse E-gun has been developed for high-power tube applications. The Hollow-Cathode-Plasma (HCP) E-gun overcomes the limitations of conventional thermionic-cathode guns that have limited current density (typically ≤ 10 A/cm 2 ) or field-emission guns that offer high current density but suffer from short pulsewidth capability (typically 50 A/cm 2 ), long-pulse operation without gap closure, and also requires no cathode-heater power. The gun employs a low-pressure glow discharge inside a hollow cathode (HC) structure to provide a stable, uniform plasma surface from which a high current-density electron beam can be extracted. The plasma density is controlled by a low-voltage HC discharge pulser to produce the desired electron current density at the first grid of a multi-grid accelerator system. A dc high-voltage electron-beam supply accelerates the electrons across the gap, while the HC pulser modulates the beam current to generate arbitrary pulse waveforms. The electron accelerator utilizes a multi-aperture array that produces a large area, high perveance (>35 μpervs) beam consisting initially of many individual beamlets. The E-beam is normally operated without an applied magnetic field in the ion-focused regime, where the plasma produced by beam ionization of a background gas space-charge neutralizes the beam, and the Bennett self-pinch compresses the beamlets and increases the current density. The self-pinched beam has been observed to propagate over a meter without beam breakup or instabilities. The HCP E-gun has been operated at voltages up to 150 kV, currents up to 750 A, and pulse lengths of up to 120 μsec

  8. Axisymmetric instability of a self-pinched beam with rounded radial density profile

    International Nuclear Information System (INIS)

    Chen, H.C.; Uhm, H.S.

    1983-01-01

    The axisymmetric perturbations (sausage and hollowing modes) of an intense relativistic self-pinched electron beam propagating in a resistive plasma background are studied, especially for a beam with rounded radial density profile. The Bennett profiles are assumed for both the equilibrium beam current J/sub b/(r) = J/sub b/(0) (1+r 2 /R 2 /sub b/) -2 and plasma return current J/sub p/(r) = -fJ/sub b/(0) (1+r 2 /R 2 /sub p/) -2 , where R/sub b/ and R/sub p/ are the characteristic radii of the beam and plasma return currents, respectively. It is further assumed that the electric conductivity sigma(r) of the plasma channel is proportional to the return current. For a paraxial electron beam with complete space-charge neutralization by the ambient plasma, the axisymmetric modes can be destabilized by the phase lag between the magnetic field and beam current, even without the plasma return current. The plasma return current significantly modifies the growth rate of the instability such that the ratio of plasma current to beam current (-I/sub p//I/sub b/ = fR 2 /sub p// iR 2 /sub b/) largely determines the stability character of the beam. Furthermore, for the same fractional current neutralization f, the modes are highly unstable for a smaller ratio of plasma to beam radius R/sub p//R/sub b/. As compared to the resistive hose instability, the growth rates for the hollowing mode can be larger than those of the hose mode, while the sausage mode is much stabler than the hose mode. Stability properties are illustrated in detail for various system parameters

  9. Basis set expansion for inverse problems in plasma diagnostic analysis

    Energy Technology Data Exchange (ETDEWEB)

    Jones, B.; Ruiz, C. L. [Sandia National Laboratories, PO Box 5800, Albuquerque, New Mexico 87185 (United States)

    2013-07-15

    A basis set expansion method [V. Dribinski, A. Ossadtchi, V. A. Mandelshtam, and H. Reisler, Rev. Sci. Instrum. 73, 2634 (2002)] is applied to recover physical information about plasma radiation sources from instrument data, which has been forward transformed due to the nature of the measurement technique. This method provides a general approach for inverse problems, and we discuss two specific examples relevant to diagnosing fast z pinches on the 20–25 MA Z machine [M. E. Savage, L. F. Bennett, D. E. Bliss, W. T. Clark, R. S. Coats, J. M. Elizondo, K. R. LeChien, H. C. Harjes, J. M. Lehr, J. E. Maenchen, D. H. McDaniel, M. F. Pasik, T. D. Pointon, A. C. Owen, D. B. Seidel, D. L. Smith, B. S. Stoltzfus, K. W. Struve, W. A. Stygar, L. K. Warne, J. R. Woodworth, C. W. Mendel, K. R. Prestwich, R. W. Shoup, D. L. Johnson, J. P. Corley, K. C. Hodge, T. C. Wagoner, and P. E. Wakeland, in Proceedings of the Pulsed Power Plasma Sciences Conference (IEEE, 2007), p. 979]. First, Abel inversion of time-gated, self-emission x-ray images from a wire array implosion is studied. Second, we present an approach for unfolding neutron time-of-flight measurements from a deuterium gas puff z pinch to recover information about emission time history and energy distribution. Through these examples, we discuss how noise in the measured data limits the practical resolution of the inversion, and how the method handles discontinuities in the source function and artifacts in the projected image. We add to the method a propagation of errors calculation for estimating uncertainties in the inverted solution.

  10. An Analysis of the Relationship between Cultural- Cinematic Policies of Iran and the Movies Introduced as the Representative of Iranian Cinema to the Academy of Oskar

    Directory of Open Access Journals (Sweden)

    Azam Ravadrad

    2013-06-01

    Full Text Available In this article the relationship between cultural policies and cinema in Iran is studied through a comparison between cultural-cinematic policies of two different Iranian states during years 1377 and 1389 and their effects on selecting the representative of Iranian cinema to the academy of Oskar. The theoretical framework of the study is based on the field of sociology of cinema, concentrating on Tony Bennett's theory relating to the effect of politics and state on form and content of cultural products. The methodology of the article is documentary and the technic used is qualitative content analysis. The analysis of cultural policies of cinema, as an issue in the field of sociology of cinema, shows that although form and content of movies are both influenced by social conditions, to which cultural policy is a part, form has been a more important criteria for the selection of movies to present in the academy of Oskar. In other words, there is a general policy in Iran that supports the idea of entering the competition of Oskar each year in order to show that Iranian cinema is so mature that is able to compete with the cinema of other countries. This policy leads to use the form and the aesthetic quality of movies as dominant criteria for the selection. Therefore, although based on each period's policies and state it is expected that selected movies produce some special contents, the importance of form has led to a selection of movies that are not directly appropriate with their co-existing domestic policies. Considering this interesting finding, it can be theoretically concluded that the effect of cultural policies on cinema is more on the content while the form of cinema is to a great extent free from the bounds of cultural policies.

  11. Two methods of space--time energy densification

    International Nuclear Information System (INIS)

    Sahlin, R.L.

    1976-01-01

    With a view to the goal of net energy production from a DT microexplosion, we study two ideas (methods) through which (separately or in combination) energy may be ''concentrated'' into a small volume and short period of time--the so-called space-time energy densification or compression. We first discuss the advantages and disadvantages of lasers and relativistic electron-beam (E-beam) machines as the sources of such energy and identify the amplification of laser pulses as a key factor in energy compression. The pulse length of present relativistic E-beam machines is the most serious limitation of this pulsed-power source. The first energy-compression idea we discuss is the reasonably efficient production of short-duration, high-current relativistic electron pulses by the self interruption and restrike of a current in a plasma pinch due to the rapid onset of strong turbulence. A 1-MJ plasma focus based on this method is nearing completion at this Laboratory. The second energy-compression idea is based on laser-pulse production through the parametric amplification of a self-similar or solitary wave pulse, for which analogs can be found in other wave processes. Specifically, the second energy-compression idea is a proposal for parametric amplification of a solitary, transverse magnetic pulse in a coaxial cavity with a Bennett dielectric rod as an inner coax. Amplifiers of this type can be driven by the pulsed power from a relativistic E-beam machine. If the end of the inner dielectric coax is made of LiDT or another fusionable material, the amplified pulse can directly drive a fusion reaction--there would be no need to switch the pulse out of the system toward a remote target

  12. Constraint and Flight Rule Management for Space Mission Operations

    Science.gov (United States)

    Barreiro, J.; Chachere, J.; Frank, J.; Bertels, C.; Crocker, A.

    2010-01-01

    The exploration of space is one of the most fascinating domains to study from a human factors perspective. Like other complex work domains such as aviation (Pritchett and Kim, 2008), air traffic management (Durso and Manning, 2008), health care (Morrow, North, and Wickens, 2006), homeland security (Cooke and Winner, 2008), and vehicle control (Lee, 2006), space exploration is a large-scale sociotechnical work domain characterized by complexity, dynamism, uncertainty, and risk in real-time operational contexts (Perrow, 1999; Woods et al, 1994). Nearly the entire gamut of human factors issues - for example, human-automation interaction (Sheridan and Parasuraman, 2006), telerobotics, display and control design (Smith, Bennett, and Stone, 2006), usability, anthropometry (Chaffin, 2008), biomechanics (Marras and Radwin, 2006), safety engineering, emergency operations, maintenance human factors, situation awareness (Tenney and Pew, 2006), crew resource management (Salas et al., 2006), methods for cognitive work analysis (Bisantz and Roth, 2008) and the like -- are applicable to astronauts, mission control, operational medicine, Space Shuttle manufacturing and assembly operations, and space suit designers as they are in other work domains (e.g., Bloomberg, 2003; Bos et al, 2006; Brooks and Ince, 1992; Casler and Cook, 1999; Jones, 1994; McCurdy et al, 2006; Neerincx et aI., 2006; Olofinboba and Dorneich, 2005; Patterson, Watts-Perotti and Woods, 1999; Patterson and Woods, 2001; Seagull et ai, 2007; Sierhuis, Clancey and Sims, 2002). The human exploration of space also has unique challenges of particular interest to human factors research and practice. This chapter provides an overview of those issues and reports on some of the latest research results as well as the latest challenges still facing the field.

  13. Dietary partitioning of Australia's two marsupial hypercarnivores, the Tasmanian devil and the spotted-tailed quoll, across their shared distributional range.

    Directory of Open Access Journals (Sweden)

    Georgina E Andersen

    Full Text Available Australia's native marsupial fauna has just two primarily flesh-eating 'hypercarnivores', the Tasmanian devil (Sarcophilus harrisii and the spotted-tailed quoll (Dasyurus maculatus which coexist only on the island of Tasmania. Devil populations are currently declining due to a fatal transmissible cancer. Our aim was to analyse the diet of both species across their range in Tasmania, as a basis for understanding how devil decline might affect the abundance and distribution of quolls through release from competition. We used faecal analysis to describe diets of one or both species at 13 sites across Tasmania. We compared diet composition and breadth between the two species, and tested for geographic patterns in diets related to rainfall and devil population decline. Dietary items were classified into 6 broad categories: large mammals (≥ 7.0kg, medium-sized mammals (0.5-6.9kg, small mammals (< 0.5kg, birds, reptiles and invertebrates. Diet overlap based on prey-size category was high. Quoll diets were broader than devils at all but one site. Devils consumed more large and medium-sized mammals and quolls more small mammals, reptiles and invertebrates. Medium-sized mammals (mainly Tasmanian pademelon Thylogale billardierii, followed by large mammals (mainly Bennett's wallaby Macropus rufogriseus and birds, were the most important prey groups for both species. Diet composition varied across sites, suggesting that both species are flexible and opportunistic foragers, but was not related to rainfall for devils. Quolls included more large mammals but fewer small mammals and invertebrates in their diet in the eastern drier parts of Tasmania where devils have declined. This suggests that a competitive release of quolls may have occurred and the substantial decline of devils has provided more food in the large-mammal category for quolls, perhaps as increased scavenging opportunities. The high diet overlap suggests that if resources become limited in areas

  14. The Rebirth of the Musical Author in Recent Fiction Written in English

    Directory of Open Access Journals (Sweden)

    Carmen Lara-Rallo

    2012-05-01

    Full Text Available In his 2005 monograph on The Author, Andrew Bennett reflects on how “authorship is central to the way in which critical practice is currently conceptualized and theorized”. The rebirth of the author in contemporary criticism is being accompanied by a renewed fascination with the figure of the author as the subject of recent fiction. This can be seen reflected in current portrayals of real and fictional writers such as Henry James, in David Lodge’s Author, Author (2004, or Olive Wellwood, in A.S. Byatt’s The Children’s Book (2009. Moreover, the recovery of the author can be traced as well in the context of the emergence of music as a fertile referent for interartistic narratives. In terms of the dialogue between contemporary fiction and music, there seems to be a common interest in the image of the author, both in the act of creation, as a composer, and of re-creation, as a performer. Works such as Bernard MacLaverty’s Grace Notes (1997, Vikram Seth’s An Equal Music (1999, Conrad Williams’ The Concert Pianist (2006, or Kazuo Ishiguro’s Nocturnes. Five Stories of Music and Nightfall (2009 favour the author-musician’s perspective as they interact with music in different ways. In light of this, the aim of this article is to explore the process of rebirth of the musical author in recent fiction written in English, analysing this trend as part of a more general tendency to recover the author’s presence and voice in both fiction and criticism.

  15. Role of maltase in the utilization of sucrose by Candida albicans.

    Science.gov (United States)

    Williamson, P R; Huber, M A; Bennett, J E

    1993-01-01

    Two isoenzymes of maltase (EC 3.2.1.20) were purified to homogeneity from Candida albicans. Isoenzymes I and II were found to have apparent molecular masses of 63 and 66 kDa on SDS/PAGE with isoelectric points of 5.0 and 4.6 respectively. Both isoenzymes resembled each other in similar N-terminal sequence, specificity for the alpha(1-->4) glycosidic linkage and immune cross-reactivity on Western blots using a maltase II antigen-purified rabbit antibody. Maltase was induced by growth on sucrose whereas beta-fructofuranosidase activity could not be detected under similar conditions. Maltase I and II were shown to be unglycosylated enzymes by neutral sugar assay, and more than 90% of alpha-glucosidase activity was recoverable from spheroplasts. These data, in combination with other results from this laboratory [Geber, Williamson, Rex, Sweeney and Bennett (1992) J. Bacteriol. 174, 6992-6996] showing lack of a plausible leader sequence in genomic or mRNA transcripts, suggest an intracellular localization of the enzyme. To establish further the mechanism of sucrose assimilation by maltase, the existence of a sucrose-inducible H+/sucrose syn-transporter was demonstrated by (1) the kinetics of sucrose-induced [14C]sucrose uptake, (2) recovery of intact [14C]sucrose from ground cells by t.l.c. and (3) transport of 0.83 mol of H+/mol of [14C]sucrose. In total, the above is consistent with a mechanism whereby sucrose is transported into C. albicans to be hydrolysed by an intracellular maltase. Images Figure 1 Figure 2 Figure 4 PMID:8489504

  16. GPS observations of coseismic deformation following the May 20 and 29, 2012, Emilia seismic events (northern Italy: data, analysis and preliminary models

    Directory of Open Access Journals (Sweden)

    Enrico Serpelloni

    2012-10-01

    Full Text Available In May-July 2012, a seismic sequence struck a broad area of the Po Plain Region in northern Italy. The sequence included two Ml >5.5 mainshocks. The first one (Ml 5.9 occurred near the city of Finale Emilia (ca. 30 km west of Ferrara on May 20 at 02:03:53 (UTC, and the second (Ml 5.8 occurred on May 29 at 7:00:03 (UTC, about 12 km southwest of the May 20 mainshock (Figure 1, near the city of Mirandola. The seismic sequence involved an area that extended in an E-W direction for more than 50 km, and included seven Ml ≥5.0 events and more than 2,300 Ml >1.5 events (http://iside.rm.ingv.it. The focal mechanisms of the main events [Pondrelli et al. 2012, Scognamiglio et al. 2012, this volume] consistently showed compressional kinematics with E-W oriented reverse nodal planes. This sector of the Po Plain is known as a region characterized by slow deformation rates due to the northwards motion of the northern Apennines fold-and-thrust belt, which is buried beneath the sedimentary cover of the Po Plain [Picotti and Pazzaglia 2008, Toscani et al. 2009]. Early global positioning system (GPS measurements [Serpelloni et al. 2006] and the most recent updates [Devoti et al. 2011, Bennett et al. 2012] recognized that less than 2 mm/yr of SW-NE shortening are accommodated across this sector of the Po Plain, in agreement with other present-day stress indicators [Montone et al. 2012] and known active faults [Basili et al. 2008]. In the present study, we describe the GPS data used to study the coseismic deformation related to the May 20 and 29 mainshocks, and provide preliminary models of the two seismic sources, as inverted from consensus GPS coseismic deformation fields. […

  17. Post-dam vegetation changes and small mammal populations in the Peace-Athabasca delta

    International Nuclear Information System (INIS)

    Pfister, O.

    1993-01-01

    Research aimed at monitoring wildlife populations is a useful way to estimate the impact and consequences of hydroelectric projects on northern deltas. Such studies could provide valuable insights on the potential effect of the drying of deltas in the context of global climate change. The Peace-Athabasca River Delta, one of the most extensive northern inland deltas in the western hemisphere, represents a unique site to study such effects. Construction of the Bennett Dam in 1968 has had serious effects on the delta's ecological integrity; the resulting lower water levels and colonization of grass meadow communities by willows and the movement of shorelines has affected wildlife distribution and population levels. A study was conducted to estimate the impact of the invasion of grass meadows by willows on small rodent populations in the delta. Live trapping grids were established at three sites. Population estimates were obtained by the minimum number known method and used to calculate biomass of small mammals in willow and meadow grids. Mean trapping estimates (MTEs) of adult meadow voles ranged from under 1 per hectare on willow grids to 28 per hectare on meadow grids. On willow grids only, MTEs for adult populations of deer mice, red-backed voles, and meadow jumping mice reached 6, 6, and less than 1 per hectare respectively. It is estimated that the development of grass meadows into willow shrublands over the next 20-40 y could result in a loss of over 50% of the biomass of small rodents present in 1976. This should have a negative effect on the foraging efficiency and productivity of secondary consumers such as weasel and owl. 109 refs., 16 figs., 29 tabs

  18. The History of Collagenase Clostridium Histolyticum.

    Science.gov (United States)

    Yang, Kevin K; Bennett, Nelson

    2015-10-01

    After its U.S. FDA approval in 2013, Collagenase Clostridium histolyticum (CCh) has seen increasing use as a nonoperative treatment for Peyronie's disease (PD). We review the history of CCh and trials that led to its adoption. To provide a historical and contemporary context for the evolution of Collagenase Clostridium histolyticum as a treatment modality for Peyronie's disease. A comprehensive search of peer-reviewed literature was performed pertaining to CCh and its biochemical and clinical significance. The main outcome studied was the efficacy and safety profile of CCh in PD. CCh use in other diseases processes and its associated outcomes are also described. CCh injection yields objective improvement in penile curvature across multiple trials in PD patients. Recently, level 1 strength of evidence has emerged supporting its widespread use. As such, CCh stands as the only FDA-approved injectable therapy for PD. Adverse events were namely limited to local reactions. Serious systemic complications and need for intervention were rare. CCh is a safe and effective treatment for PD patients with deformities and plaque configuration amenable to injectable therapy. Multiple trials have demonstrated improvements in objective and subjective metrics such as penile curvature and bother scores. However, multiyear follow-up is needed to assess durability and its sustained clinical significance. Currently, refinement in dosing and technique has established a niche for CCh in PD patients who are affected by their symptoms but are not yet committed to surgical intervention. Yang KK and Bennett N. The history of collagenase clostridium histolyticum. Copyright © 2015 International Society for Sexual Medicine. Published by Elsevier Inc. All rights reserved.

  19. TiO2 effect on crystallization mechanism and physical properties of nano glass-ceramics of MgO-Al2O3-SiO2 glass system.

    Science.gov (United States)

    Jo, Sinae; Kang, Seunggu

    2013-05-01

    The effect of TiO2 on the degree of crystallization, thermal properties and microstructure for MgO-Al2O3-SiO2 glass-ceramics system containing 0-13 wt% TiO2 and 0-1.5 wt% B2O3 in which the cordierite is the main phase was studied. Using Kissinger and Augis-Bennett equations, the activation energy, 510 kJ/mol and Avrami constant, 1.8 were calculated showing the surface-oriented crystallization would be preferred. The alpha-cordierite phase was generated in the glass-ceramics of containing TiO2 of 0-5.6 wt%. However, for the glass-ceramics of TiO2 content above 7 wt%, an alpha-cordierite disappeared and micro-cordierite phase was formed. The glass-ceramics of no TiO2 added had spherical crystals of few tens nanometer size spread in the matrix. As TiO2 content increased up to 5.6 wt%, a lump of dendrite was formed. In the glass-ceramics containing TiO2 7-13 wt%, in which the main phase is micro-cordierite, the dendrite crystal disappeared and a few hundred nanometer sized crystal particles hold tightly each other were generated. The thermal conductivity of glass-ceramics of both a-cordierite and micro-cordierite base decreased with TiO2 contend added. The thermal conductivity of glass-ceramics of 1.5 wt% TiO2 added was 3.4 W/mK which is 36% higher than that of glass-ceramics of no TiO2 added. The sintering temperature for 1.5 wt% TiO2 glass-ceramics was 965 degrees C which could be concluded as to apply to LTCC process for LED packaging.

  20. An abstraction layer for efficient memory management of tabulated chemistry and flamelet solutions

    Science.gov (United States)

    Weise, Steffen; Messig, Danny; Meyer, Bernd; Hasse, Christian

    2013-06-01

    A large number of methods for simulating reactive flows exist, some of them, for example, directly use detailed chemical kinetics or use precomputed and tabulated flame solutions. Both approaches couple the research fields computational fluid dynamics and chemistry tightly together using either an online or offline approach to solve the chemistry domain. The offline approach usually involves a method of generating databases or so-called Lookup-Tables (LUTs). As these LUTs are extended to not only contain material properties but interactions between chemistry and turbulent flow, the number of parameters and thus dimensions increases. Given a reasonable discretisation, file sizes can increase drastically. The main goal of this work is to provide methods that handle large database files efficiently. A Memory Abstraction Layer (MAL) has been developed that handles requested LUT entries efficiently by splitting the database file into several smaller blocks. It keeps the total memory usage at a minimum using thin allocation methods and compression to minimise filesystem operations. The MAL has been evaluated using three different test cases. The first rather generic one is a sequential reading operation on an LUT to evaluate the runtime behaviour as well as the memory consumption of the MAL. The second test case is a simulation of a non-premixed turbulent flame, the so-called HM1 flame, which is a well-known test case in the turbulent combustion community. The third test case is a simulation of a non-premixed laminar flame as described by McEnally in 1996 and Bennett in 2000. Using the previously developed solver 'flameletFoam' in conjunction with the MAL, memory consumption and the performance penalty introduced were studied. The total memory used while running a parallel simulation was reduced significantly while the CPU time overhead associated with the MAL remained low.