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Sample records for dick henry jb

  1. What I Learned From Henry Dick: Highlights and What's Left for Us?

    NASA Astrophysics Data System (ADS)

    Kelemen, P.

    2006-12-01

    (1) Slow spreading ridges have lots of peridotite outcrops, especially at segment ends. This dove-tailed with seismic and gravity observations, and geodynamic modeling, to yield a community consensus on 3D crustal accretion. However there are an increasingly large number of abysmal peridotite outcrops known at segment centers, so what is happening to the simple 3D picture? (2) There are global systematics in abysmal peridotite compositions, and in corresponding MORB, that define apparent melting trends. However (a) Why do the peridotite trends slope the wrong way on phase diagrams? (b) How come local variability in some fracture zones is almost as large as global variability? (c) What are the pyroxene proportions when corrected to magmatic temperature? (d) To what extent are the modal data affected by density changes during hydrous alteration? (e) To what extent are pyroxene and olivine contents affected by reactive dissolution and/or "impregnation"? (f) What does it mean when highly depleted peridotites are sampled from very cold parts of the ridge system? (3) Fractional melting is likely. Well, OK, near fractional. However (a) How many of those clinopyroxenes analyzed by Johnson et al (JGR 90) and Johnson & Dick (JGR 92) are igneous? Particularly the most depleted ones must be metamorphic. Given the diffusion data, what do the trace element concentrations really tell us? (b) What about the whole rock data? (4) The average composition of oceanic gabbros from ODP Hole 735B = average MORB, for trace as well as major elements. How does this work? Average MORB results from ~ 50% crystal fractionation. Where are the corresponding cumulates to balance lavas & 735B style gabbro sections? (5) Re-circulating, depleted peridotites can melt over and over again, provided they are reheated to `ambient' potential temperature during their residence in the convecting mantle. (6) There are important feedbacks between localized melt transport and localized deformation, in the mantle and probably in the oceanic lower crust. (7) A lot of abysmal peridotites from 14-16 N on the MAR lack subsolidus deformation, despite having made a journey through the lithosphere to the seafloor. (8) Oblique spreading segments probably have slower mantle upwelling rates than orthogonal segments in the same region. (9) There are large offset, low angle normal faults that expose peridotite and gabbro at slow spreading ridges. (10) Inside corner highs are commonly underlain by peridotite. (penultimate) I did not LEARN much about dunites from Henry. However, we AGREED from an early date that dunites are very interesting conduits for olivine-saturated melt passing through pyroxene-bearing wall rocks, that formed at least in part by pyroxene dissolution during porous flow, and that could be important for understanding disequilibrium between MORB and shallow mantle peridotite. (last and least) Some horizontal dunites MAY form by vertical migration of melt across pre-existing, horizontal pyroxene layers. At this point in the talk, I will eat my hat.

  2. JB6 Mouse Model

    Cancer.gov

    JB6 References 1993 Chang PL & Prince CW: 1 alpha,25-Dihydroxyvitamin D3 enhances 12-O- tetradecanoylphorbol-13- acetate- induced tumorigenic transformation and osteopontin expression in mouse JB6 epidermal cells. Cancer Res 53: 2217-2220, 1993.  Abstract

  3. JB6 Mouse Model

    Cancer.gov

    JB6 References 1981 Colburn NH & Gindhart T. Specific binding of transforming growth factor correlates with promotion of anchorage independence in EGF receptorless JB6 cells. Biochem Biophys Res Commun 102: 799-807, 1981.  Abstract  Colburn NH, Wendel E,

  4. JB6 Mouse Model

    Cancer.gov

    JB6 References 1984 Srinivas L & Colburn NH. Preferential oxidation of cell surface sialic acid by periodate leads to promotion of transformation in JB6 cells. Carcinogenesis 5: 515-519, 1984.  Abstract  Srinivas L & Colburn NH. Reduced trisialogangliosid

  5. JB6 Mouse Model

    Cancer.gov

    JB6 References 1985 Colburn NH, Lerman MI, Hegamyer GA, & Gindhart TD. A transforming activity not detectable by DNA transfection to NIH 3T3 cells is detected by JB6 mouse epidermal cells. Mol Cell Biol 5: 890-893, 1985.  Abstract   Full Text    Colburn N

  6. JB6 Mouse Model

    Cancer.gov

    JB6 References 1992 Amstad PA, Krupitza G, Cerutti PA. Mechanism of c-fos induction by active oxygen. Cancer Res 52: 3952-3960, 1992.  Abstract  Ben-Ari ET, Bernstein LR, & Colburn NH. Differential c-jun expression in response to tumor promoters in JB6 ce

  7. JB6 Mouse Model

    Cancer.gov

    JB6 References 1997 Amstad PA, Liu H, Ichimiya M, Chang S, Berezesky IK, & Trump BF. Bcl-2 enhancement of malignant transformation in mouse epidermal JB6 cells. Mol Carcinog 20: 231-239, 1997.  Abstract  Amstad PA, Liu H, Ichimiya M, Berezesky IK, & Trump

  8. JB6 Mouse Model

    Cancer.gov

    JB6 References 1989 Bernstein LR & Colburn NH. AP-1/jun function is differentially induced in promotion sensitive and resistant JB6 cells. Science 244: 566-569, 1989.  Abstract  Cerutti P, Larsson R, Krupitza G, Muehlematter D, Crawford D, & Amstad P. Pat

  9. JB6 Mouse Model

    Cancer.gov

    JB6 References 1982 Colburn NH, Dion LD, & Wendel EJ. The role of mitogenic stimulation and specific glycoprotein changes in the mechanism of late-stage promotion in JB-6 epidermal cell lines. In Hecker E, Fusening NE, Kunz W, Marks F, & Thielmann HW (Eds

  10. JB6 Mouse Model

    Cancer.gov

    JB6 Mouse Model The mouse Balb/C JB6 model (1) is the only well characterized model of genetic variants for a neoplastic transformation response to tumor promoters. These cells are not differentially sensitive to tumor promoter induced mitogenesis or diff

  11. JB6 Mouse Model

    Cancer.gov

    JB6 References 1983 Bondy GP & Denhardt DT. Exposure of JB6 mouse epidermal cells to 12-0-tetradecanoyl- phorbol-13-acetate is not accompanied by a significant change in total DNA-cytosine methylation. Carcinogenesis 4: 1599-1603, 1983.  Abstract  Colburn

  12. JB6 Mouse Model

    Cancer.gov

    JB6 References 1995 Chang PL, Yang WC, Prince CW. Effects of okadaic acid on calcitriol- and phorbol ester-induced expression and phosphorylation of osteopontin in mouse JB6 epidermal cells. Ann NY Acad Sci 760: 24-34, 1995.  Pub Med link    Dong Z, Lavro

  13. JB6 Mouse Model

    Cancer.gov

    JB6 References 2000 Berdyshev EV, Schmid PC, Dong Z, & Schmid HH. Stress-induced generation of N- acylethanolamines in mouse epidermal JB6 P+ cells. Biochem J 346 Pt 2: 369-74, 2000.  Abstract  Full Text    Borowski P, Resch K, Schmitz H, & Heiland M. A s

  14. JB6 Mouse Model

    Cancer.gov

    JB6 References 2004 Lin MH, Wang CJ, Huang HP, Chou MY, & Chou FP. The tumorigenic haracteristics of lime-piper betel quid-transformed JB6 cells. Arch Toxicol. 78(3): 167-73, 2004.  Abstract  Hou DX, Kai K, Li JJ, Lin S, Terahara N, Wakamatsu M, Fujii M,

  15. JB6 Mouse Model

    Cancer.gov

    JB6 References 2007 Nomura M, Yamazaki R, Takaya M, Kikuchi M, Takahashi-Nishioka T, Akiyama K, Akiyama N, Moritani S, & Kobayashi S. Inhibition of tetrandrine on epidermal growth factor-induced cell transformation and its signal transduction. Anticancer

  16. JB6 Mouse Model

    Cancer.gov

    JB6 References 1978 Colburn NH, Vorder Bruegge WF, Bates JR, Gray RH, Rossen JD, Kelsey WH, & Shimada T. Correlation of anchorage independent growth with tumorigenicity of chemically transformed mouse epidermal cells. Cancer Res 38: 624-634, 1978.  Abstra

  17. JB6 Mouse Model

    Cancer.gov

    JB6 References 1979 Colburn NH, Former BF, Nelson KA, & Yuspa SH. Tumor promoter induces anchorage independence irreversibly. Nature 281: 589-591, 1979.  Abstract  Colburn NH. The use of tumor promoter responsive epidermal cell lines to study preneoplasti

  18. JB6 Mouse Model

    Cancer.gov

    JB6 References 1990 Amstad P & Cerutti P. Genetic modulation of the cellular antioxidant defense capacity. Environ Health Perspect 88: 77-82, 1990.  Abstract  Full Text  DeBenedetti F, Colburn NH, Oppeneheim JJ, & Faltynek CR. Tumor necrosis factor induce

  19. JB6 Mouse Model

    Cancer.gov

    JB6 References 1988 Cerutti P, Krupitza G, Larsson R, Muehlematter D, Crawford D, Amstad P. Physiological and pathologic effects of oxidants in mouse epidermal cells. Ann NY Acad Sci 551: 75-82, 1988.  Abstract  Cerutti P. Commentary Response modification

  20. JB6 Mouse Model

    Cancer.gov

    JB6 References 1987 Colburn NH. The genetics of tumor promotion. In Barrett JC (Ed). Mechanisms of Environmental Carcinogenesis, Vol 1, Boca Raton, CRC Press, Inc, 1987, pp 81-95. Colburn NH, Farber E, Weinstein IB, Diamond L, & Slaga TJ. Meeting Report.

  1. JB6 Mouse Model

    Cancer.gov

    JB6 References 2008 Zheng D, Cho YY, Lau AT, Zhang J, Ma WY, Bode AM, & Dong Z. Cyclin-dependent kinase 3-mediated activating transcription factor 1 phosphorylation enhances cell transformation. Cancer Res 68(18): 7650-60, 2008. Abstract Full Text Lee KW,

  2. JB6 Mouse Model

    Cancer.gov

    JB6 References 2002 Young MR, Nair R, Bucheimer N, Tulsian P, Hsu T-C, & Colburn NH. Transactivation of Fra-1 and consequent activation of AP-1 occur Erk dependently. Mole Cell Biol 22: 587-598, 2002.  Abstract  Full Text    Liu G, Zhang Y, Bode AM, Ma WY

  3. JB6 Mouse Model

    Cancer.gov

    JB6 References 2001 Berdyshev EV, Schmid PC, Krebsbach RJ, Hillard CJ, Huang C, Chen N, Dong Z, Schmid HH. Cannabinoid-receptor-independent cell signaling by N-acylethanolamines. Biochem J 360: 67-75, 2001.  Abstract  Full Text    Chung JY, Park JO, Phyu

  4. JB6 Mouse Model

    Cancer.gov

    JB6 References 1991 Amstad P, Peskin A, Shah G, Mirault ME, Moret R, Zbinden I, & Cerutti P. The balance between Cu,Zn-superoxide dismutase and catalase affects the sensitivity of mouse epidermal cells to oxidative stress. Biochemistry 30: 9305-9313, 1991

  5. JB6 Mouse Model

    Cancer.gov

    JB6 References 2005 Wang L, Bowman L, Lu Y, Rojanasakul Y, Mercer RR, Castranova V, & Ding M. Essential role of p53 in silica-induced apoptosis. Am J Physiol Lung Cell Mol Physiol 288(3). L488-96, 2005.  Abstract  Zykova TA, Zhang Y, Zhu F, Bode AM, & Don

  6. JB6 Mouse Model

    Cancer.gov

    JB6 References 1980 Colburn NH. Tumor promotion and preneoplastic progression. In Slaga TJ (Ed). Carcinogenesis; Modifiers of Carcinogenesis, Vol 5 NY, Raven Press, 1980, pp 33-56.  Colburn NH, Koehler B, & Nelson KA. A cell culture assay for tumor promot

  7. JB6 Mouse Model

    Cancer.gov

    JB6 References 1996 Bian J, Wang Y, Smith MR, Kim H, Jacobs C, Jackman J, Kung HF, Colburn NH, & Sun Y. Suppression of in vivo tumor growth and induction of suspension cell death by tissue inhibitor of metallo-proteinases (TIMP)-3. Carcinogenesis 17: 1805

  8. JB6 Mouse Model

    Cancer.gov

    JB6 References 1999 Bae GU, Seo DW, Kwon HK, Lee HY, Hong S, Lee ZW, Ha KS, Lee HW, Han JW. Hydrogen peroxide activates p70(S6k) signaling pathway. J Biol Chem 274: 32596- 32602, 1999.  Abstract  Bernstein LR & Walker SE. Tumor promotion resistant cells a

  9. JB6 Mouse Model

    Cancer.gov

    JB6 References 1998 Cmarik JL, Li Y, Ogram SA, Reeves R & Colburn NH. Tumor promoter induces high mobility group HMG-Y protein expression in transformation-sensitive but not resistant cells. Oncogene 16: 3387-3396, 1998.  Abstract  Dong Z, Huang C, Ma WY,

  10. JB6 Mouse Model

    Cancer.gov

    JB6 References 1986 Greenfield AR, Taffet SM, Haddox MK. Immunocytochemical localization of ornithine decarboxylase in cultured murine cells. Cell Tissue Res 243: 33-40, 1986.  Abstract  Hosoi J, Abe E, Suda T, Colburn NH, & Kuroki T. Induction of anchora

  11. JB6 Mouse Model

    Cancer.gov

    JB6 References 1994 Amstad P, Moret R, & Cerutti P. Glutathione peroxidase compensates for the hypersensitivity of Cu,Zn- superoxide dismutase overproducers to oxidant stress. J Biol Chem 269: 1606-1609, 1994.  Abstract  Banbura M, Ackland-Berglund C, Lee

  12. JB6 Mouse Model

    Cancer.gov

    JB6 References 2009 Hwang MK, Song NR, Kang NJ, Lee KW, & Lee HJ. Activation of phosphatidylinositol 3-kinase is required for tumor necrosis factor-alpha-induced upregulation of matrix metalloproteinase-9. Its direct inhibition by quercetin. Int J Biochem

  13. JB6 Mouse Model

    Cancer.gov

    Kim JE, Son JE, Jang YJ, Lee DE, Kang NJ, Jung SK, Heo YS, Lee KW, Lee HJ.  Luteolin, a novel natural inhibitor of TPL2 kinase, inhibits tumor necrosis factor-alpha-induced cyclooxygenase-2 expression in JB6 mouse epidermis cells.  Pharmacol Exp Ther. [Ep

  14. JB6 Mouse Model

    Cancer.gov

    Keene AM, Allaway RJ, Sadrieh N, Tyner KM.  Gold nanoparticle trafficking of typically excluded compounds across the cell membrane in JB6 Cl 41-5a cells causes assay interference.  Nanotoxicology, 2010.  Abstract    Son YO, Hitron JA, Cheng S, Budhraja A,

  15. JB6 Mouse Model

    Cancer.gov

    JB6 References 2003 Wei SJ, Trempus CS, Cannon RE, Bortner CD, & Tennant RW. Identification of Dss1 as a TPA-responsive gene expressed in keratinocyte progenitor cells, with possible involvement in early skin tumorigenesis. J Biol Chem 278(3): 1758-68, 20

  16. JB6 Mouse Model

    Cancer.gov

    JB6 References 2006 Feng G, Ohmori Y, & Chang PL. Production of chemokine CXCL1/KC by okadaic acid through the nuclear factor-kappaB pathway. Carcinogenesis 27(1): 43-52, 2006.  Abstract Ding M, Huang C, Lu Y, Bowman L, Castranova V, & Vallyathan V. Invol

  17. Patrick Henry.

    ERIC Educational Resources Information Center

    Scanlon, Thomas M.

    Patrick Henry dominated the politics of Virginia and was a powerful voice in the affairs of the early United States. He became a lawyer at age 23 and rose to prominence following his victory in "The Parsons Case." Soon after, he was elected to the House of Burgesses where he challenged the control of the wealthy, established members and shocked…

  18. Henry Candelari 

    E-print Network

    Unknown

    2011-08-17

    ., Superintendent **J. c. ~!TEPH&S: d. A.. Junior Agrono No. 5. Temple. Bell County: No. I4 Sonora Sntton-Edwards Countiec HENRY DUNLAW M S Superintendent W. k. DAMF&RON. B. S.. Superintendent B F DANA M S' ~iant'~atho1ogist E. A. TUNNICLIFF, D. V. M.. M. S., H... in this manner. "Strip planting" is a local term applied to interspersing cotton rows with some other crop. Usually 50 to 90 rows of cotton are alternated with 10 to 25 rows of corn or sorghum. Some growers reported that this practice was effective...

  19. Interview with Dick Whiteside

    ERIC Educational Resources Information Center

    Winarski, Kathy

    2005-01-01

    Dick Whiteside, Vice President for Enrollment Management at Tulane University, is one of the leading strategists in the field of enrollment management. Dr. Whiteside has held influential positions at the University of Hartford, in West Hartford, Connecticut, The Johns Hopkins University in Baltimore, Maryland, the City University of New York in…

  20. -modules are JB Jose M. Isidro

    E-print Network

    Hilbert C -modules are JB -triples. Jos´e M. Isidro Facultad de Matem´aticas, Universidad de Hilbert C -module E is a JB -triple in a canonical way and establish an explicit expres- sion of complex Banach spaces called JB -triples. In 1983 he proved that, except for a biholomorphic bijection

  1. THE DAUGAVET PROPERTY OF C -ALGEBRAS, JB

    E-print Network

    THE DAUGAVET PROPERTY OF C -ALGEBRAS, JB -TRIPLES, AND OF THEIR ISOMETRIC PREDUALS Julio Becerra + T . We give geometric characterizations of this property in the settings of C -algebras, JB -triples-algebra; von Neumann predual; JB-triple; predual of a JBW-triple; Daugavet equation; Daugavet property; rough

  2. On Summing Operators on JB*-triples Antonio M. Peralta

    E-print Network

    On Summing Operators on JB*-triples Antonio M. Peralta Departamento de An´alisis Matem In this paper we introduce 2-JB*-triple-summing operators on real and complex JB*-triples. These operators in the setting of 2-JB*-triple-summing operators on JB*- triples. Mathematics Subject Classification: 17C65, 46L

  3. jb@doc.ic.ac.uk jb@doc.ic.ac.uk

    E-print Network

    Bradley, Jeremy

    Stochastic Probes Jeremy Bradley jb@doc.ic.ac.uk Imperial College London LFCS, Edinburgh -- 28 October 2003 #12; LFCS, Edinburgh jb@doc.ic.ac.uk 28th October 2003 1 Stochastic Probes Stochastic Probes in stochastic process algebra models #12; LFCS, Edinburgh jb@doc.ic.ac.uk 28th October 2003 2 Stochastic Probes

  4. Subdomain (Partition) Testing Dick Hamlet

    E-print Network

    Hamlet, Richard

    Subdomain (Partition) Testing Dick Hamlet Department of Computer Science Portland State University Portland, OR 97207 USA +1 503 725 4036 hamlet@cs.pdx.edu Abstract In subdomain testing, the input space

  5. HENRY'S DAUGHTERS Paul Martin

    E-print Network

    Chen, Xinzhong

    , what's in it for me? I mean, it seems like the fix is in. HENRY It's a non-zero sum game; everybody benefits. It's a win-win-win. Bob, the transportation industry needs a shot in the arm. It needs a champion's some sexy futuristic video for your campaign commercials when it comes time to run... HENRY ...for

  6. Parallel and Distributed Systems Speaker: Dick Epema

    E-print Network

    Kuzmanov, Georgi

    Alexandru Iosup Grids/Clouds P2P systems Big Data Online gaming Dick Epema Grids/Clouds e-Science P2P1 Parallel and Distributed Systems Speaker: Dick Epema Group: Alex Iosup, Johan Pouwelse, Henk Sips

  7. Henry Ford Health Systems

    Cancer.gov

    Henry Ford Health Systems evolved from a hospital into a system delivering care to 2.5 million patients and includes the Cancer Epidemiology, Prevention and Control Program, which focuses on epidemiologic and public health aspects of cancer.

  8. Moby-Dick. [Lesson Plan].

    ERIC Educational Resources Information Center

    Soderquist, Alisa

    Based on Herman Melville's novel "Moby-Dick," this lesson plan presents activities designed to help students understand that the novel is grounded in facts that Melville acquired in his own experiences at sea; New England was the center of a prospering whaling industry in the 19th century; and journal keeping was not uncommon among 19th-century…

  9. Henry's Law and Noisy Knuckles.

    ERIC Educational Resources Information Center

    Kimbrough, Doris R.

    1999-01-01

    Discusses Henry's Law which describes the relationship between the pressure of gas and the concentration of that gas in a solution. Presents an application of Henry's Law to the cracking of knuckles. (CCM)

  10. Geometric characterization of tripotents in real and complex JB

    E-print Network

    Peralta, Antonio M.

    Geometric characterization of tripotents in real and complex JB -triples Francisco J. Fern@ugr.es, and aperalta@ugr.es Abstract We establish a geometric characterization of tripotents in real and complex JB -triples. As a consequence we obtain an alternative proof of Kaup's Banach-Stone theorem for JB -triples. 1

  11. ON THE AXIOMATIC DEFINITION OF REAL JB*-TRIPLES

    E-print Network

    ON THE AXIOMATIC DEFINITION OF REAL JB*B-triples include real C*-algebras and complex JB*-triples. However, concerning J*B-triples, an im*B-triple is a complex JB*-triple in some norm extending the original norm. T. Dang and B. Russo solved

  12. LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES

    E-print Network

    LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES ANTONIO M. PERALTA* Abstract We prove that given a real JB show that if A is a JB-algebra and T : A ! H is a bounded linear operator then there exists

  13. ON THE AXIOMATIC DEFINITION OF REAL JB*-TRIPLES

    E-print Network

    ON THE AXIOMATIC DEFINITION OF REAL JB*-TRIPLES ANTONIO M. PERALTA Abstract. In the last twenty the concept of J*B-triple. These J*B-triples include real C*-algebras and complex JB*-triples. However#12;cation of a J*B-triple is a complex JB*-triple in some norm extending the original norm. T. Dang

  14. On Summing Operators on JB*-triples Antonio M. Peralta*

    E-print Network

    On Summing Operators on JB*-triples Antonio M. Peralta-mail: aperalta@goliat.ugr.es Abstract In this paper we introduce 2-JB*-triple-summing operators on real and complex JB*-triples. These operators generalize 2-C*-summing operators

  15. AUTOMATIC CONTINUITY OF DERIVATIONS ON -ALGEBRAS AND JB

    E-print Network

    Russo, Bernard

    AUTOMATIC CONTINUITY OF DERIVATIONS ON C -ALGEBRAS AND JB -TRIPLES ANTONIO M. PERALTA AND BERNARD conditions under which every derivation from a JB-triple E into a Banach (Jordan) triple E-module is continuous. In particular, every derivation from a real or complex JB-triple into its dual space is automati

  16. Manifolds of algebraic elements in JB Jose M. Isidro

    E-print Network

    Manifolds of algebraic elements in JB -triples Jos´e M. Isidro Facultad de Matem. Similar results are established for the manifold of algebraic elements in an abstract JB -triple. Keywords. JB -triples, Grassmann manifolds, Riemann manifolds. AMS 2000 Subject Classification. 48G20, 72H51. 1

  17. UAV Photogrammetry Henri Eisenbei

    E-print Network

    Giger, Christine

    UAV Photogrammetry Henri Eisenbeiß Zurich, 2009 #12;#12;This publication is an edited version of: DISS. ETH NO. 18515 UAV Photogrammetry A dissertation submitted to ETH ZURICH for the degree of Doctor, Switzerland Prof. Dr. Impyeong Lee, co-examiner Seoul, Korea 2009 #12;ii IGP Mitteilungen Nr. 105 UAV

  18. Comment on 'New Brans-Dicke wormholes'

    SciTech Connect

    Bhadra, Arunava; Simaciu, Ion; Nandi, Kamal Kanti; Zhang Yuanzhong

    2005-06-15

    It is shown that the recently claimed two new Brans-Dicke wormhole solutions [F. He and S-W. Kim, Phys. Rev. D 65, 084022 (2002)] are not really new solutions. They are just the well known Brans-Dicke solutions of Class I and II in a different conformal gauge.

  19. Brans-Dicke cylindrical wormholes

    NASA Astrophysics Data System (ADS)

    Eiroa, Ernesto F.; Simeone, Claudio

    2010-10-01

    Static axisymmetric thin-shell wormholes are constructed within the framework of the Brans-Dicke scalar-tensor theory of gravity. Examples of wormholes associated with vacuum and electromagnetic fields are studied. All constructions must be threaded by exotic matter, except in the case of geometries with a singularity of finite radius, associated with an electric field, which can have a throat supported by ordinary matter. These results are achieved with any of the two definitions of the flare-out condition considered.

  20. Herbert and Lou Henry Hoover.

    ERIC Educational Resources Information Center

    Frese, Millie K., Ed.

    1999-01-01

    This issue of the children's magazine, "The Goldfinch," focuses on Herbert and Lou Henry Hoover. The articles included are: (1) "Getting To Know Herbert Clark Hoover"; (2) "Lou Henry Hoover"; (3) "Meet an Iowa Author"; (4) "The Great Depression"; (5) "A Different Kind of Coupon"; (6) "The President's Mountain School"; (6) "Where are the Books?";…

  1. WILLIAM HENRY: CHRISTIAN CHURCH MINISTER

    E-print Network

    Page 1 WILLIAM HENRY: CHRISTIAN CHURCH MINISTER WATERLOO TOWNSHIP COUNCILLOR FARMER By Rosemary was Elder William Henry of the Christian Church, who first ministered to members of his faith from his base at the Christian Church east of Kossuth in Waterloo Township from 1853-1869. He then moved to Minto Township

  2. LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES

    E-print Network

    LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES ANTONIO M. PERALTA Abstract We prove that given a real JB*-triple E, and a real Hilbert space H, then the set of those bounded linear operators T from E from E to H. As a tool for the above result, we show that if A is a JB-algebra and T : A H

  3. LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES

    E-print Network

    Peralta, Antonio M.

    LITTLE GROTHENDIECK`S THEOREM FOR REAL JB*-TRIPLES ANTONIO M. PERALTA Abstract We prove that given a real JB*-triple E, and a real Hilbert space H, then the set of those bounded linear operators T from E operators from E to H. As a tool for the above result, we show that if A is a JB-algebra and T : A ! H

  4. Cosmic acceleration and Brans-Dicke theory

    SciTech Connect

    Sharif, M. Waheed, S.

    2012-10-15

    We study the accelerated expansion of the universe by exploring the Brans-Dicke parameter in different eras. For this, we take the FRW universe model with a viscous fluid (without potential) and the Bianchi type-I universe model with a barotropic fluid (with and without a potential). We evaluate the deceleration parameter and the Brans-Dicke parameter to explore cosmic acceleration. It is concluded that accelerated expansion of the universe can also be achieved for higher values of the Brans-Dicke parameter in some cases.

  5. Cosmic Acceleration and Brans-Dicke Theory

    E-print Network

    M. Sharif; Saira Waheed

    2013-03-08

    This paper is devoted to study the accelerated expansion of the universe by exploring the Brans-Dicke parameter in different eras. For this purpose, we take FRW universe model with viscous fluid (without potential) and Bianchi type I universe model with barotropic fluid (with and without potential). We evaluate deceleration parameter as well as Brans-Dicke parameter to explore cosmic acceleration. It is concluded that accelerated expansion of the universe can also be achieved for higher values of the Brans-Dicke parameter in some cases.

  6. Generalized Brans-Dicke theories

    SciTech Connect

    De Felice, Antonio; Tsujikawa, Shinji E-mail: shinji@rs.kagu.tus.ac.jp

    2010-07-01

    In Brans-Dicke theory a non-linear self interaction of a scalar field ? allows a possibility of realizing the late-time cosmic acceleration, while recovering the General Relativistic behavior at early cosmological epochs. We extend this to more general modified gravitational theories in which a de Sitter solution for dark energy exists without using a field potential. We derive a condition for the stability of the de Sitter point and study the background cosmological dynamics of such theories. We also restrict the allowed region of model parameters from the demand for the avoidance of ghosts and instabilities. A peculiar evolution of the field propagation speed allows us to distinguish those theories from the ?CDM model.

  7. Collaboration Among Software Components Dick Hamlet

    E-print Network

    Hamlet, Richard

    Collaboration Among Software Components Dick Hamlet Department of Computer Science Portland State University Portland, OR 97207 hamlet@cs.pdx.edu #12;Summary of the Talk Questions · What can unit testing do

  8. Loop quantum Brans-Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Zhang, Xiangdong; Artymowski, Michal; Ma, Yongge

    2013-04-01

    The spatially flat and isotropic cosmological model of Brans-Dicke theory with coupling parameter ??-(3)/(2) is quantized by the approach of loop quantum cosmology. An interesting feature of this model is that although the Brans-Dicke scalar field is nonminimally coupled with curvature, it can still play the role of an emergent time variable. In the quantum theory, the classical differential equation which represents cosmological evolution is replaced by a quantum difference equation. The effective Hamiltonian and modified dynamical equations of loop quantum Brans-Dicke cosmology are also obtained, which lay a foundation for the phenomenological investigation to possible quantum gravity effects in cosmology. The effective equations indicate that the classical big bang singularity is again replaced by a quantum bounce in loop quantum Brans-Dicke cosmology.

  9. Quantum Metrology with Dicke Squeezed States

    E-print Network

    Zhen Zhang; Luming Duan

    2014-07-02

    We introduce a new class of quantum many-particle entangled states, called the Dicke squeezed (or DS) states, which can be used to improve the precision in quantum metrology beyond the standard quantum limit. We show that the enhancement in measurement precision is characterized by a single experimentally detectable parameter, called the Dicke squeezing $\\xi_{D}$, which also bounds the entanglement depth for this class of states. The measurement precision approaches the ultimate Heisenberg limit as $\\xi_{D}$ attains the minimum in an ideal Dicke state. Compared with other entangled states, we show that the Dicke squeezed states are more robust to decoherence and give better measurement precision under typical experimental noise.

  10. Joseph Henry and Astronomy

    NASA Astrophysics Data System (ADS)

    Rothenberg, Marc

    2016-01-01

    Joseph Henry (1797-1878) is best known for his work in electromagnetism and as the first secretary of the Smithsonian Institution. But he was also a pioneer solar physicist, an early advocate of US participation in astrophysics, and a facilitator of international cooperation in astronomy. This paper will briefly trace his role in the development of the US astronomical community from the time he taught astronomy at Princeton in the 1830s through his death, focusing on failed efforts to persuade US astronomers and patrons of astronomy that the best path for US astronomy should be astrophysics. He thought that the US could make a more significant contribution to astronomy science by striking out on a less travelled path rather than competing with the established European observatories.

  11. Supporting the Dick Vet The Royal (Dick) School ofVeterinary Studies was

    E-print Network

    Edinburgh, University of

    Supporting the Dick Vet The Royal (Dick) School ofVeterinary Studies was founded in 1823 by William ­ teaching excellent students to become excellent vets · Our Hospital for Small Animals, Equine Hospital providing our students with the best possible training environment · Vets from throughout the UK refer

  12. New advances on the Grothendieck's inequality problem for bilinear forms on JB*-triples

    E-print Network

    Peralta, Antonio M.

    New advances on the Grothendieck's inequality problem for bilinear forms on JB*-triples Antonio M spaces known as JB*-triples (see definition and examples below). JB*-triples were intro- duced by Kaup [14] in the study of bounded symmetric domains in complex Banach spaces. The class of JB*-triples has

  13. Ph D course, History of ecological ideas 2015 jb -2015-10-23

    E-print Network

    Ph D course, History of ecological ideas 2015 jb - 2015-10-23 Ph D student course: History3 at Ekologicentrum at Ultuna. Introduction to reading of Worster. etc. (JB) II. Reading) Day 1 Book discussion (JB et al.) Reading Day 2 Discussion: Ecology as a discipline (JB) Discussion

  14. Nonsingular Brans-Dicke-? cosmology

    NASA Astrophysics Data System (ADS)

    Tretyakova, D. A.; Shatskiy, A. A.; Novikov, I. D.; Alexeyev, S.

    2012-06-01

    We discuss a Brans-Dicke model with a cosmological constant, a negative value of the w parameter, and an arbitrary (in general nonvanishing) scale factor at the big bang. The Friedmann equations for a flat universe are considered. The current observational values for Hubble constant H0 and deceleration parameter q0 play the role of initial conditions. We follow the approach of Uehara and Kim in order to solve field equations analytically. In K. Uehara and C. W. Kim [Phys. Rev. DPRVDAQ0556-2821 26, 2575 (1982)]10.1103/PhysRevD.26.2575 only positive values of w were considered; we extend the study to a complete set of possible w values. Our main result is that the scale factor (during its evolution back in time direction) may not vanish, unlike in the standard ?CDM case. In other words, the considered model demonstrates a cosmological bounce instead of the initial singularity. The famous formula , that leads to the bounce, is valid only for the dust-filled universe with p=0 and, therefore, is not adequate for the early universe hot stage when the bounce happens. So, our results are qualitative in nature and must be used to obtain initial values for the hot stage of the Universe.

  15. Detecting multiparticle entanglement of Dicke states.

    PubMed

    Lücke, Bernd; Peise, Jan; Vitagliano, Giuseppe; Arlt, Jan; Santos, Luis; Tóth, Géza; Klempt, Carsten

    2014-04-18

    Recent experiments demonstrate the production of many thousands of neutral atoms entangled in their spin degrees of freedom. We present a criterion for estimating the amount of entanglement based on a measurement of the global spin. It outperforms previous criteria and applies to a wider class of entangled states, including Dicke states. Experimentally, we produce a Dicke-like state using spin dynamics in a Bose-Einstein condensate. Our criterion proves that it contains at least genuine 28-particle entanglement. We infer a generalized squeezing parameter of -11.4(5)??dB. PMID:24785048

  16. The universal enveloping TRO of a JB*-triple system

    E-print Network

    Bohle, Dennis

    2010-01-01

    We associate to every JB*-triple system a so-called universal enveloping TRO and show some functorial properties of this correspondence. We compute the universal enveloping TROs of the finite dimensional Cartan factors.

  17. THE RESEARCH ENTERPRISE OF HENRY FORD HOSPITAL

    E-print Network

    Finley Jr., Russell L.

    THE RESEARCH ENTERPRISE OF HENRY FORD HOSPITAL Margot C. LaPointe, Ph.D. Vice President Systems in Michigan Henry Ford Health System (# of awards) 49 $18,457,877 William Beaumont Hosp. 5 $1,057,553 Wayne State University ­ SOM 167 $52,339,733 Henry Ford Health System 49 $18,457,877 MSU College

  18. Auxiliary material for Paper 2012JB009540 Structure of the subduction system in southern Peru from seismic array data

    E-print Network

    Clayton, Robert W.

    Auxiliary material for Paper 2012JB009540 Structure of the subduction system.1029/2012JB009540. Introduction This data set contains four additional figures to supplement the figures contained in the paper. 1. 2012jb009540-fs01.tif

  19. Understanding Human Experience Henry Kautz

    E-print Network

    Kautz, Henry

    Understanding Human Experience Henry Kautz One of the earliest goals of research in artificial intelligence was to create systems that can interpret and understand day to day human experience. Early work on the goal of building systems that understand human experience. Each of the previous barriers is weakened

  20. The Right Fit for Henry

    ERIC Educational Resources Information Center

    Gould, J. Christine; Staff, Linda K.; Theiss, Heather M.

    2012-01-01

    When Henry was enrolled in a gifted program in 3rd grade, he showed many of the classic signs of giftedness, but his reading and writing skills were below grade level. An evaluation revealed that he was twice-exceptional--he was gifted and he had a learning disability. Believing that both his giftedness and his learning disability warranted…

  1. Joseph Henry and the Telegraph

    NASA Astrophysics Data System (ADS)

    Hochfelder, David

    1997-04-01

    Morse's telegraph rested upon three scientific advances which occured between 1800 and 1830: the development of battery technology, the formulation of laws governing the behavior of electrical components in circuits, and the discovery of electromagnetic phenomena. Joseph Henry was crucial to the development of the early telegraph. His work on electromagnetism made it possible for the electric current to manifest itself as useful mechanical work. Henry developed electromagnets of sufficient lifting power, but which drew relatively small currents; these magnets were the heart of Morse's telegraph receiver. Morse also used electromagnets as relays, which allowed him to transmit signals over great distances. Morse often acknowledged his debt to Henry, and the two enjoyed a cordial working relationship until the mid-1840s. But during the bitter and protracted litigation over Morse's patent, Henry testified (unwillingly, he claimed) against the inventor. This began a lifelong quarrel between the two men, the specifics of which were tedious and petty. In general terms, however, their conflict arose over different notions regarding scientific discovery and technological innovation.

  2. Measure Zero Henry Y. Chan

    E-print Network

    May, J. Peter

    Measure Zero Henry Y. Chan July 1, 2013 1 Measure Zero Lebesgue measure gives a concrete way to measure the volume (or area) of subsets of Rn . For simplicity, we will only discuss the special case about sets which have Lebesgue measure zero. These sets are "small" in some senses, but they can behave

  3. The progressive solutions for the Dicke Hamiltonian

    NASA Astrophysics Data System (ADS)

    Bao, Lina; Pan, Feng; Li, Xiaotong; Liang, Xiao; Draayer, J. P.

    2015-07-01

    A progressive diagonalization scheme for the Dicke Hamiltonian, which describes the interaction of N two-level atoms with a single-mode radiation field via a dipole interaction, is proposed. It is shown that the ground state of the Dicke Hamiltonian with a finite number of atoms can be solved almost exactly by using a progressive diagonalization scheme that involves a one-variable equation at each step. The scheme is efficient for the lower part of the spectrum. Calculated results for ground-state energies, photon numbers, atomic inversions, fluctuations in the latter two quantities, entanglement measures, and Shanon information entropies at resonance points for some finite j cases as functions of the coupling parameter are given. These outcomes show significant changes in the photon number, atomic inversion, and their fluctuations near the critical point where the entanglement measure reaches its maximum value.

  4. A Soliloquy for Art and Dick.

    PubMed

    Dooling, Robert J

    2016-01-01

    Art Popper and Dick Fay are probably the most prolific scientists in the history of auditory research. In fact, they should probably be listed among the most prolific authors anywhere given their number of Springer Handbook of Auditory Research volumes, alone, now reaching 51 volumes and still continuing! To give them their proper due, I channeled another very prolific author from years ago and produced a soliloquy to honor their contributions to us and our field of auditory science. PMID:26515310

  5. Spontaneous Leptogenesis in Brans-Dicke Cosmology

    E-print Network

    Chi-Yi Chen; You-Gen Shen; Bo Feng

    2005-08-04

    The role of the auxiliary scalar field $\\phi$ of Brans-Dicke theory played in baryon number asymmetry is discussed in this paper. We consider a derivative coupling of this gravitational scalar field to the baryon current ${J^{\\mu}}_B$ or the current of the baryon number minus lepton number ${J^{\\mu}}_{B-L}$ based on a series of works of R. Morganstern about the Brans-Dicke cosmology. We find that the spontaneous baryogenesis by this coupling is capable to yield a sufficient baryon asymmetry $n_B/s\\sim 10^{10} $ for the time of the grand unification is in a little advanced. In addition, Davoudiasl et al have recently introduced a new type of interaction between the Ricci scalar $R$ and the bayon current $J^{\\mu}$, $\\partial_{\\mu}R J^{\\mu}$ and also proposed a mechanism for baryogenesis, the gravitational baryogenesis. However, the Einstein equation tell us that $\\dot{R}=0$ in the radiation-dominated epoch of the standard FRW cosmology. In this paper we reconsider the feasibility of having gravitational baryongenesis with such a form of interaction in radiation-filled Brans-Dicke cosmology. We will show that $\\dot{R}$ does not vanish in this case and the required baryon number asymmetry can also be achieved.

  6. Closed tripotents and weak compactness in the dual space of a JB*-triple

    E-print Network

    Peralta, Antonio M.

    Closed tripotents and weak compactness in the dual space of a JB*-triple Francisco J. Fern of dual spaces of JB*-triples the study of weak compactness has been developed by Chu and Iochum [12 concerning weak compactness in the dual space of a JB*-triple give characterizations in terms of the abelian

  7. Relatively weakly open sets in closed balls of Banach spaces, and real JB

    E-print Network

    Peralta, Antonio M.

    Relatively weakly open sets in closed balls of Banach spaces, and real JB -triples of finite rank. We prove that, given a real JB -triple X, there exists a nonempty relatively weakly open subset to a Hilbert space. Moreover we give the structure of real JB -triples whose Banach spaces are isomorphic

  8. AUTOMATIC CONTINUITY OF DERIVATIONS ON C-ALGEBRAS AND JB-TRIPLES

    E-print Network

    AUTOMATIC CONTINUITY OF DERIVATIONS ON C-ALGEBRAS AND JB-TRIPLES ANTONIO M. PERALTA AND BERNARD under which every derivation from a JB -triple E into a Banach (Jordan) triple E-module is continuous. In particular, every derivation from a real or complex JB -triple into its dual space is automatically

  9. Isometries between JB*-triples Cho-Ho Chu, Michael Mackey

    E-print Network

    Isometries between JB*-triples Cho-Ho Chu, Michael Mackey 1 School of Mathematical Sciences, Queen, University College Dublin, Belfield, Dublin 4, Ireland Email:michael.mackey@ucd.ie Abstract Let Z and W be JB spaces, called JB*-triples. One can therefore study the geometry of symmetric domains via the algebraic

  10. On the manifold of tripotents in JB*-triples Laszlo L. Stacho

    E-print Network

    Stachó, László

    On the manifold of tripotents in JB*-triples L´aszl´o L. Stach´o October 29, 2007 Abstract. Tripotents are natural generalizations of partial isometries in C*-algebras to the context of JB,7,8,6] concerning the structure of the tripotents as a direct real-analytic submanifold in a JB*-triple. We also

  11. Some remarks on weak compactness in the dual space of a JB*-triple

    E-print Network

    Peralta, Antonio M.

    Some remarks on weak compactness in the dual space of a JB*-triple Antonio M. Peralta Abstract We]. Every von Neumann algebra belongs to a more general class of Banach spaces known as JBW*-triples. A JB properties (see definition below). JB*-triples were introduced by Kaup [19] in the study of bounded symmetric

  12. Compact tripotents and the Stone-Weierstrass Theorem for C*-algebras and JB*-triples

    E-print Network

    Peralta, Antonio M.

    Compact tripotents and the Stone-Weierstrass Theorem for C*-algebras and JB*-triples Francisco J for the hull- kernel structure in the setting of JB*-triples. These results are the natural extensions of those with the classical Stone-Weierstrass problem for C*-algebras and JB*-triples. 1 Introduction Let K be a topological

  13. doi:10.1128/JB.01628-09. J. Bacteriol. 192(11):2852-2860.Proteomics.

    E-print Network

    Clemmer, David E.

    doi:10.1128/JB.01628-09. J. Bacteriol. 192(11):2852-2860.Proteomics. Membrane Complex Proteins. Proteomics Complex Proteins by Differential Outer Membranetrachomatis ChlamydiaIdentification of http://jb http://jb.asm.org/cgi/content/full/192/11/2852/DC1 CONTENT ALERTS more>>cite this article), eTOCs, free

  14. DERIVATIONS ON REAL AND COMPLEX JB*-TRIPLES TONY HO, JUAN MARTiNEZ MORENO,

    E-print Network

    DERIVATIONS ON REAL AND COMPLEX JB*-TRIPLES TONY HO, JUAN MART´iNEZ MORENO, ANTONIO M. PERALTA, AND BERNARD RUSSO Abstract We prove that the real JB*-triple of all bounded linear operators from one real of California, Irvine in 1985 [24], Harald Upmeier posed three basic questions regarding derivations on JB

  15. A jB sequence code for pathway-specific innate immune responses

    E-print Network

    A jB sequence code for pathway-specific innate immune responses Matthew S Busse, Christopher P- mune responses in Drosophila by activating NF-jB pro- teins that bind jB target sites. Here, we delineate a jB site sequence code that directs pathway-specific expression of innate immune loci. Using

  16. Hilbert C*-modules are JB*-triples. Jos'e M. Isidro *

    E-print Network

    Hilbert C*-modules are JB*-triples. Jos'e M Abstract We show that every Hilbert C*-module E is a JB*-triple in a canonical way* * and establish spaces called JB*-triples. In 1983 he proved that, except for a biholomorphic bijection, every

  17. A Sait^o-Tomita-Lusin Theorem for JB*-triples and Applications

    E-print Network

    Peralta, Antonio M.

    A Sait^o-Tomita-Lusin Theorem for JB*-triples and Applications Leslie J. Bunce, Francisco J. Fern-ordered context of JB*- triples. This is applied to obtain versions of a general transitivity theorem and to deduce refinements of facial structure in closed unit balls of JB*-triples and duals. 1 Introduction

  18. DERIVATIONS ON REAL AND COMPLEX JB*-TRIPLES TONY HO, JUAN MART'iNEZ MORENO,

    E-print Network

    DERIVATIONS ON REAL AND COMPLEX JB*-TRIPLES TONY HO, JUAN MART Abstract We prove that the real JB*-triple of all bounded linear operators from one r* *eal Hilbert three basic questions regarding derivations on JB*- triples: Q1: Are derivations automatically

  19. Purification, molecular cloning, and biochemical characterization of subtilisin JB1 from a newly isolated Bacillus subtilis JB1.

    PubMed

    Sung, Ji Hea; Ahn, Sang Jung; Kim, Na Young; Jeong, Soo-Kyoung; Kim, Joong Kyun; Chung, Joon Ki; Lee, Hyung Ho

    2010-10-01

    An extracellular gelatinolytic enzyme obtained from the newly isolated Bacillus subtilis JB1, a thermophilic microorganism relevant to the aerobic biodegradation process of fish-meal production, was purified via ammonium sulfate precipitation, Sephadex G-200 Gel filtration chromatography, and one-dimensional gel electrophoresis separation and subsequently identified via peptide mass fingerprinting and chemically assisted fragmentation matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The subtilisin JB1 gene was sequenced and its recombinant protein prosubtilisin JB1 was expressed in Escherichia coli, and the purified prosubtilisin JB1 (62 kDa) protein was digested with gelatin, bovine serum albumin, azocasein, fibrinogen, and the fluorogenic peptide substrate Ala-Ala-Phe-7-amido-4-methylcoumarin hydrochloride, whereas the serine protease inhibitors phenylmethylsulfonyl fluoride and chymostatin completely inhibited its enzyme activity at an optimal pH of 7.5. Thus, our results show that subtilisin JB1 may serve as a potential source material for use in industrial applications of proteolytic enzymes and microorganisms for fishery waste degradation and fish by-product processing. PMID:19902383

  20. Genetic Characterization of Bacillus anthracis 17 JB strain

    PubMed Central

    Seyed-Mohamadi, Sakineh; Moradi Bidhendi, Soheila; Tadayon, Keyvan; Ghaderi, Rainak

    2015-01-01

    Background and Objectives: Bacillus anthracis is one of the most homogenous bacteria ever described. Some level of diversity. Bacillus anthracis 17JB is a laboratory strain It is broadly used as a challenge strain in guinea pigs for potency test of anthrax vaccine. Material and Methods: This work describes genetic characterization of B. anthracis 17 JB strain using the SNPs and MLVA genotyping. Results and Conclusion: In SNPs typing, the originally French 17JB strain represented the A.Br. 008/009 subgroup. In Levy's genotyping method, 843, 451 and 864 bp long fragments were identified at AA03, AJ03 and AA07 loci, respectively. In the vaccine manufacturer perspective these findings are much valuable on their own account, but similar research is required to extend molecular knowledge of B. anthracis epidemiology in Persia. PMID:26668705

  1. JB-300: An advanced medium size transport for 2005

    NASA Technical Reports Server (NTRS)

    Debrouwer, Giles; Graham, Katherine; Ison, Jim; Juarez, Vince; Moskalik, Steve; Pankonin, Jon; Weinstein, Arnold

    1993-01-01

    In the fall of 1992, the TAC Team was presented with a Request for Proposal (PFP) for a mid-size (250-350 passenger) commercial transport. The aircraft was to be extremely competitive in the areas of passenger comfort, performance, and economic aspects. Through the use of supercritical airfoils, a technologically advanced Very High By-pass Ratio (VHBR) turbofan engine, a low overall drag configuration, a comparable interior layout, and mild use of composites, the JB-300 offers an economically viable choice to the airlines. The cents per passenger mile of the JB-300 is 1.76, which is considerably lower than current aircraft in the same range. Overall, the JB-300 is a technologically advanced aircraft, which will meet the demands of the 21st century.

  2. What We Talk around when We Talk about "The Dick"

    ERIC Educational Resources Information Center

    Savage, Elizabeth

    2011-01-01

    Some years ago, the author had her first opportunity to teach an undergraduate American Romanticism course, which meant she had a chance to teach "Moby-Dick" the way she thought it should be taught. Meeting two days a week, her course was set up so that students read about thirty pages of "Moby-Dick" for one class meeting a week paired with…

  3. Brane cosmic string compactification in Brans-Dicke theory

    SciTech Connect

    Abdalla, M. C. B.; Hoff da Silva, J. M.; Guimaraes, M. E. X.

    2007-04-15

    We investigate an alternative compactification of extra dimensions using local cosmic string in the Brans-Dicke gravity framework. In the context of dynamical systems it is possible to show that there exist a stable field configuration for the Einstein-Brans-Dicke equations. We explore the analogies between this particular model and the Randall-Sundrum scenario.

  4. Brans-Dicke Scalar Field as a Chameleon

    E-print Network

    Sudipta Das; Narayan Banerjee

    2008-07-01

    In this paper it is shown that in Brans - Dicke theory, if one considers a non-minimal coupling between the matter and the scalar field, it can give rise to a late time accelerated expansion for the universe preceded by a decelerated expansion for very high values of the Brans - Dicke parameter $\\omega$.

  5. Brans-Dicke scalar field as a chameleon

    SciTech Connect

    Das, Sudipta; Banerjee, Narayan

    2008-08-15

    In this paper it is shown that in Brans-Dicke theory, if one considers a nonminimal coupling between the matter and the scalar field, it can give rise to a late time accelerated expansion for the Universe preceded by a decelerated expansion for very high values of the Brans-Dicke parameter {omega}.

  6. 75 FR 23718 - Orders Finding That the Henry Financial Basis Contract, Henry Financial Index Contract and Henry...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ...Commission does not at this time regard ICE as a registered entity in...price for natural gas at the Henry Hub on a specified...2,500 mmBtu of gas at a particular location on a specific day and is settled...price of natural gas at the Henry Hub on a...

  7. Gravitation and the earth sciences: the contributions of Robert Dicke

    E-print Network

    Kragh, Helge

    2015-01-01

    The American physicist Robert Dicke (1916-1997) is primarily known for his important contributions to gravitation, cosmology, and microwave physics. Much less known is his work in geophysics and related areas of the earth sciences in which he engaged himself and several of his collaborators in the period from about 1957 to 1969. Much of Dicke's work in geophysics was motivated by his wish to obtain evidence in support of the non-Einstenian Brans-Dicke theory of gravitation. The idea of a decreasing gravitational constant, as entertained by Dicke and some other physicists (including Pascual Jordan), played some role in the process that transformed the static picture of the Earth to a dynamical picture. It is not by accident that Dicke appears as a minor actor in histories of the plate tectonic revolution in the 1960s.

  8. Anisotropy due to Brans-Dicke Theory

    E-print Network

    Seokcheon Lee

    2008-11-11

    It is well known that the viscous Bianchi type-I metric of the Kasner form is not able to describe an anisotropic universe, which satisfies the second law of thermodynamics and the dominant energy condition in Einstein's theory of gravity. We investigate this problem in Brans-Dicke theory of gravity using the Bianchi type-I metric with the perfect fluid. We show that it is possible to have the dominant energy condition and the growth of entropy in this model. Also we apply this model to explain the anomaly concerning the low quadrupole amplitude of the angular power spectrum of the temperature anisotropy observed in WMAP data.

  9. Anisotropy due to Brans-Dicke Theory

    E-print Network

    Lee, Seokcheon

    2008-01-01

    It is well known that the viscous Bianchi type-I metric of the Kasner form is not able to describe an anisotropic universe, which satisfies the second law of thermodynamics and the dominant energy condition in Einstein's theory of gravity. We investigate this problem in Brans-Dicke theory of gravity using the Bianchi type-I metric with the perfect fluid. We show that it is possible to have the dominant energy condition and the growth of entropy in this model. Also we apply this model to explain the anomaly concerning the low quadrupole amplitude of the angular power spectrum of the temperature anisotropy observed in WMAP data.

  10. Origins Program Update Henry Throop, NASA HQ

    E-print Network

    Throop, Henry

    Origins Program Update Henry Throop, NASA HQ Program officer: Origins of Solar Systems (OSS Overview · Origins is one of NASA's core research & analysis (R&A) programs, focusing on... · # 1, 2, 3: NASA Planetary Science Division (Henry Throop), $6M/yr · # 4, 5: NASA Astrophysics Division (Mario

  11. John Henry--The Steel Driving Man

    ERIC Educational Resources Information Center

    Murphy, David E.; Gulley, Laura L.

    2005-01-01

    The story of John Henry provided the setting for sixth-grade class to participate in a John Henry Day of mathematics experiments. The students collected data from experiments where students competed against machines and technology. The student analyzed the data by comparing two box plots, a box plot of human data, and a box plot of machine or…

  12. The Intergalactic Medium Richard C. Henry

    E-print Network

    90 The Intergalactic Medium Richard C. Henry Center for Astrophysical Sciences The Henry A. Rowland, the capability of detection of the dark matter of the universe, and in particular, detection of the intergalactic) play in the search for the intergalactic medium and the search for the dark matter of the Universe. I

  13. L'indice de Maslov dans les $JB^*$-triples

    E-print Network

    Stephane Merigon

    2009-06-16

    We construct a homotopy invariant index for pathes in the set of invertible tripotents in a JB*-triple that satisfy a Fredholm type condition with respect to a fixed invertible tripotent. That index generalizes the Maslov index in the Fredholm-Lagrangian of a symplectic Hilbert space.

  14. Published Ahead of Print 18 May 2012. 2012, 194(15):3913. DOI: 10.1128/JB.00583-12.J. Bacteriol.

    E-print Network

    Baldwin, Enoch

    Published Ahead of Print 18 May 2012. 2012, 194(15):3913. DOI: 10.1128/JB.00583-12.J. Bacteriol of the Bacillus subtilis Linker Differentially Affect Output from the Two Surfaces of a Conserved Interdomain http://jb plemental.html http://jb.asm.org/content/suppl/2012/07/06/JB.00583-12.DCSup REFERENCES http://jb

  15. On the Chameleon Brans-Dicke Cosmology

    E-print Network

    Yousef Bisabr

    2012-12-13

    We consider a generalized Brans-Dicke model in which the scalar field has a potential function and is also allowed to couple non-minimally with the matter sector. We assume a power law form for the potential and the coupling functions as the inputs of the model and show that acceleration of the universe can be realized for a constrained range of exponent of the potential function. We also argue that this accelerating phase is consistent with a large and positive Brans-Dicke parameter. In our analysis, the potential plays a more important role with respect to the coupling function in dynamics of the universe as the latter does not contribute to any of the relations characterizing evolution of scale factor of the universe and the scalar field. However, we will show that the coupling function is closely related to magnitude and direction of the energy transfer between matter and the scale field. We use this fact and some thermodynamic aspects of the model to put some constraints on the coupling function. In particular, we argue that the second law of thermodynamics constrains direction of the overall energy transfer.

  16. First day in Princeton The Joseph Henry Project

    E-print Network

    Petta, Jason

    in Alexander Graham Bell's discovery of sound Bell Meets with Henry at the Smithsonian Institute Bell writes by Henry Recreate experiments he did with others (Bell, Faraday, etc.) Research the history of his-inductance/mutual inductance Professor at Princeton #12;http://www.princeton.edu/ssp/ #12;Bell & Henry Henry's interest

  17. Radiation Dominated Universe for Jordan-Brans-Dicke Cosmology

    E-print Network

    M. Arik; L. Amon Susam

    2011-11-17

    Jordan-Brans-Dicke cosmology with a standard kinetic term for the scalar field and no mass term has the same radiation dominated solution as standard Einstein cosmology without the cosmological constant. Because of this, the primordial nucleosynthesis (Big - Bang nucleosynthesis) result obtained for standard cosmology remains the same for Jordan-Brans-Dicke cosmology. We show that Jordan-Brans-Dicke cosmology with a mass term for the scalar field as well as explaining dark energy for the present era, can also explain radiation dominated cosmology for the primordial nucleosynthesis era.

  18. False vacuum decay in Jordan-Brans-Dicke cosmologies

    SciTech Connect

    Holman, R.; Wang, Yun . Dept. of Physics); Kolb, E.W.; Vadas, S.L. Chicago Univ., IL ); Weinberg, E.J. . Dept. of Physics)

    1989-12-01

    We examine the bubble nucleation rate in a first-order phase transition taking place in a background Jordan-Brans-Dicke cosmology. We compute the leading order terms in the nucleation rate when the Jordan-Brans-Dicke field is large (i.e., late times) by means of a Weyl rescaling of the fields in the theory. We find that despite the fact that the Jordan-Brans-Dicke field (hence the effective gravitational constant) has a time dependence in the false vacuum, at late times the nucleation rate is time independent. 21 refs.

  19. False vacuum decay in Jordan-Brans-Dicke cosmologies

    NASA Technical Reports Server (NTRS)

    Holman, Richard; Kolb, Edward W.; Vadas, Sharon L.; Wang, Yun; Weinberg, Erick J.

    1989-01-01

    The bubble nucleation rate in a first-order phase transition taking place in a background Jordan-Brans-Dicke cosmology is examined. The leading order terms in the nucleation rate when the Jordan-Brans-Dicke field is large (i.e., late times) are computed by means of a Weyl rescaling of the fields in the theory. It is found that despite the fact that the Jordan-Brans-Dicke field (hence the effective gravitational constant) has a time dependence in the false vacuum at late times the nucleation rate is time independent.

  20. Einstein metrics and Brans-Dicke superfields

    SciTech Connect

    Marques, S.

    1988-01-01

    It is obtained here a space conformal to the Einstein space-time, making the transition from an internal bosonic space, constructed with the Majorana constant spinors in the Majorana representation, to a bosonic ''superspace,'' through the use of Einstein vierbeins. These spaces are related to a Grassmann space constructed with the Majorana spinors referred to above, where the ''metric'' is a function of internal bosonic coordinates. The conformal function is a scale factor in the zone of gravitational radiation. A conformal function dependent on space-time coordinates can be constructed in that region when we introduce Majorana spinors which are functions of those coordinates. With this we obtain a scalar field of Brans-Dicke type. 11 refs.

  1. Connecting Test Coverage to Software Dependability Dick Hamlet

    E-print Network

    Hamlet, Richard

    Connecting Test Coverage to Software Dependability Dick Hamlet Portland State University Center of mutation coverage [Hamlet77, DeM- illo78, Howden82], in which the computational struc- ture of a program

  2. Relaxing nucleosynthesis constraints on Brans-Dicke theories

    SciTech Connect

    De Felice, Antonio; Mangano, Gianpiero; Serpico, Pasquale D.; Trodden, Mark

    2006-11-15

    We reconsider constraints on Brans-Dicke theories arising from the requirement of successful big bang nucleosynthesis. Such constraints typically arise by imposing that the universe be radiation-dominated at early times, and therefore restricting the contribution that a Brans-Dicke scalar could make to the energy budget of the universe. However, in this paper we show how the dynamics of the Brans-Dicke scalar itself can mimic a radiation-dominated kinematics, thereby allowing successful nucleosynthesis with a sizable contribution to the total cosmic energy density. In other words Newton's constant may dynamically acquire values quite different from that today, even though the evolution mimics radiation domination. This possibility significantly relaxes the existing bounds on Brans-Dicke fields, and opens the door to new possibilities for early universe cosmology. The necessary fine tunings required by such an arrangement are identified and discussed.

  3. Math. Nachr. 237 (2002), 26 39 Prime JB*Triples and Extreme Dual Ball Density

    E-print Network

    Stachó, László

    2002-01-01

    Math. Nachr. 237 (2002), 26 ­ 39 Prime JB*­Triples and Extreme Dual Ball Density By L. J. Bunce of the extreme points e(E 1 ) of the closed dual ball E 1 of a JB*­triple E are studied. It is shown, known as JB*­triples, which have received considerable recent attention, occur naturally in op- erator

  4. "Cold Venal Advocate": Henry Fielding's lawyers 

    E-print Network

    Lee, Joshua R

    2013-02-22

    Henry Fielding wrote frequently and harshly about lawyers. While many commentators have noted Fielding's criticism of lawyers and studied Fielding's concern with legal institutions generally, none have yet undertaken a ...

  5. Determination of Henry’s Law Constants Using Internal Standards with Benchmark Values

    EPA Science Inventory

    It is shown that Henry’s law constants can be experimentally determined by comparing headspace content of compounds with known constants to interpolate the constants of other compounds. Studies were conducted over a range of water temperatures to identify temperature dependence....

  6. Obituary: Henry Emil Kandrup, 1955-2003

    NASA Astrophysics Data System (ADS)

    Merritt, David; Gottesman, Stephen T.

    2004-12-01

    Henry Emil Kandrup died on 18 October 2003 at his home in Gainesville Florida. Henry was a theoretical astrophysicist specializing in the application of chaotic dynamics to stellar systems. At the time of his death, Henry was a Professor at the University of Florida where he had taught for 13 years. Henry was born in Manhasset, New York on July 24, 1955 and spent most of his childhood in Great Neck. His parents, Jytte and Fred, were immigrants from Denmark where his father had worked as a silver smith. Henry was a precocious child, skipping both third and fifth grades. With the help of Sidney Spivack, a professor of sociology at Columbia University, his parents enrolled Henry in the Brooks Preparatory School in Andover, Massachusetts. After graduating at age 16, Henry enrolled at Cornell, transferring to Princeton the following year. Henry's parents adored their only child and worked hard to provide him with intellectual opportunities. Henry became an accomplished musician (organ, piano, French horn) and linguist (English, Danish, German) and was a passionate devotee of opera and ballet. Henry received his PhD in 1980 from the University of Chicago, where his thesis advisor was James Ipser. He taught at Oakland University in Michigan and Syracuse University in New York before coming to the University of Florida in 1990. Henry was sui generis. He shunned conventionality in his personal appearance and in his public demeanor, and always chose forthrightness and candor over polite silence. But to those of us who knew Henry well, his bluntness was a reflection of his intellectual consistency. Henry always said exactly what he thought, both in his published work and his public presentations, and never compromised himself for the sake of appearances. Nothing that he said or wrote was less than fully thought out. Henry's PhD thesis was entitled "Stochastic Problems in Stellar Dynamics," and most of his subsequent research was in this field. Motion in stellar systems can be stochastic for three reasons: deflection of trajectories by close encounters; non-integrability of the smoothed-out potential; and an oscillating mean field. Henry made important contributions to our understanding of all three sorts of chaos. In a series of papers from the early 1990's, Henry developed the idea of ``chaotic phase mixing," the process by which an ensemble of points evolves toward a uniform coarse-grained population of phase space. Prior to Henry's work, the evolution of stellar systems to a steady state was attributed loosely to "violent relaxation," defined as phase-space repopulation driven by changes in the smooth potential. Henry pointed out that changes in the gravitational potential do not by themselves constitute relaxation; at best, they can contribute to relaxation by inducing a degree of chaos in the stellar trajectories. But it is the chaos that is responsible for the mixing and hence for the approach to a steady state. Among his other important contributions to stellar dynamics were a formal demonstration of the equivalence of Landau damping and phase mixing, and a proof (with J. F. Sygnet) of the linear stability of a broad class of stellar systems. Shortly before his death, Henry was working on the chaotic dynamics of charged particle beams and on the influence of binary super massive black holes on orbital motion in galaxies. Henry was one of the principle organizers of more than a dozen workshops on non-linear dynamics in astronomy and astrophysics that were held at the University of Florida. At the time of his death, he was negotiating with Springer Verlag over publication of a monograph, Hamiltonian Galactic Dynamics. Henry was famous for the energetic quality of his lectures. Like many other excellent teachers, he drew upon his research to enliven his undergraduate teaching. Under Research Interests, his web site lists "creative utilization of playdough, margaritas, and spirographs in graduate and undergraduate teaching." Henry received numerous teaching citations and awards; he was consiste

  7. Last revised: 14/08/12 Page 1 of 2 JB Senior Tutor representation on University and intercollegiate committees

    E-print Network

    Jackson, Sophie

    Last revised: 14/08/12 Page 1 of 2 JB Senior Tutor representation on University and intercollegiate Steering Group #12;Last revised: 14/08/12 Page 2 of 2 JB West and North West Cambridge Project Board

  8. 2012 Tasha Seiter Feeding behavior of the lobster Paper: JB Thuma, KH Hobbs, HJ Burstein, NS Seiter, SL Hooper (2013)

    E-print Network

    Hooper, Scott

    2013-01-01

    2012 Tasha Seiter Feeding behavior of the lobster Paper: JB Thuma, KH Hobbs, HJ Burstein, NS Seiter East Coast Nerve Net meeting (competitive awards). Paper: JB Thuma, PI Harness, TJ Koehnle, LG Morris

  9. Thomas Henry Huxley and neuroscience.

    PubMed

    Smith, C U

    1999-01-01

    In the latter decades of the nineteenth century Thomas Henry Huxley was at the heart of British Science: President of the British Association for the Advancement of Science (1870), President of the Royal Society (1883-86), Chairman of innumerable committees. His thought in many ways characterises the spirit of the 'high' Victorian age in Britain. He was not only the most eminent academic biologist of his time but also deeply interested in philosophical issues. His re-examination of the evolution of the brain in response to Richard Owen's 'telenomic' views formed the kernel of the notorious debate at the 1860 meeting of the British Association in Oxford. From his early youth until old age he thought long and hard about the mind/body problem. This paper follows the development of his ideas and shows how in debate with many of the leading thinkers of his age, in the X-club and the Metaphysical Society, he struggled to develop a biologically-based account of the relationship between mind and brain. However, at the end, he seems to have recognized that his position was not entirely satisfactory and ultimately famously confessing himself 'agnostic' turned from metaphysics to devote himself to more practical issues. The unresolved problems of mind and brain which perplexed Huxley remain to torment his epigoni. PMID:11640239

  10. Complete Genome Sequence of Leuconostoc carnosum Strain JB16, Isolated from Kimchi

    PubMed Central

    Jung, Ji Young; Lee, Se Hee

    2012-01-01

    Leuconostoc carnosum strain JB16 was isolated from kimchi, the traditional Korean fermented food. Here, we report the complete genome sequence of L. carnosum strain JB16, consisting of a 1,645,096-bp circular chromosome with a G+C content of 37.24% and four plasmids. PMID:23144413

  11. Complete Genome Sequence of Leuconostoc gelidum Strain JB7, Isolated from Kimchi

    PubMed Central

    Jung, Ji Young; Lee, Se Hee

    2012-01-01

    A strain of Leuconostoc gelidum, designated strain JB7, was isolated from kimchi, the representative Korean traditional fermented food. Here we announce the complete genome sequence of L. gelidum strain JB7, consisting of a 1,893,499-bp circular chromosome with a G+C content of 36.68%, and provide a description of its annotation. PMID:23144409

  12. GRASSMANN MANIFOLDS OF JORDAN ALGEBRAS Abstract. We show that, in a JB-algebra, the projections form a Banach manifold

    E-print Network

    GRASSMANN MANIFOLDS OF JORDAN ALGEBRAS Cho-Ho Chu Abstract. We show that, in a JB and geometry is well-known (cf. [10]). Recently, various differentiable manifolds associated with a JB B(H) of bounded operators on a Hilbert space H have been studied in [1, 5], via the complex JB

  13. GEOMETRIC UNITARIES IN JB-ALGEBRAS CHI-WAI LEUNG, CHI-KEUNG NG AND NGAI-CHING WONG

    E-print Network

    Wong, Ngai-Ching

    GEOMETRIC UNITARIES IN JB-ALGEBRAS CHI-WAI LEUNG, CHI-KEUNG NG AND NGAI-CHING WONG Abstract. In this note, we study geometric unitaries of JB-algebras (in particular, self- adjoint parts of C -algebras). By using order theoretical arguments, we show that the geometric unitaries of a JB-algebra are precisely

  14. Auxiliary material for Paper 2007JB005263 Seismic array detection of subducted oceanic crust in the lower mantle

    E-print Network

    Garnero, Ed

    Auxiliary material for Paper 2007JB005263 Seismic array detection of subducted oceanic crust of subducted oceanic crust in the lower mantle, J. Geophys. Res., 113, B06303, doi:10.1029/2007JB005263 of fast seismic velocities below the Mariana and Tonga/Fiji subduction zones. 1. 2007jb005263-fs01.eps

  15. The Dunford-Pettis and the Kadec-Klee properties on tensor products of JB*-triples

    E-print Network

    Peralta, Antonio M.

    The Dunford-Pettis and the Kadec-Klee properties on tensor products of JB*-triples Julio Becerra of 1. When this result is particularized to the class of Banach spaces called JB*-triples (see definition below) we conclude that the projective tensor product of two JB*-triples E and F has the DPP

  16. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 111, B05305, doi:10.1029/2004JB003270, 2006 Auxiliary Material

    E-print Network

    Garnero, Ed

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 111, B05305, doi:10.1029/2004JB003270, 2006 Auxiliary discussion of ULVZ attributes is included. Auxiliary Material for Paper 2004JB003270 Shear velocity variation, doi:10.1029/2005JB003270. Introduction This auxiliary material contains supplemental details

  17. Non-Singular BRANS-DICKE-? Cosmology

    NASA Astrophysics Data System (ADS)

    Alexeyev, Stanislov O.; Tretyakova, Darya A.; Shatskiy, Alexander A.; Novikov, Igor D.

    2015-01-01

    We discuss a Brans-Dicke model with a cosmological constant, negative value of the w parameter and an arbitrary (in general non-vanishing) scale factor at the Big Bang. The Friedman equations for a flat universe are considered. The current observational values for Hubble constant H0 and deceleration parameter q0 play the role of initial conditions. We follow the approach of Ref. 1 in order to solve field equations analytically. In Ref. 1 only positive values of w were considered, we extend the study to a complete set of possible w values. Our main result is that the scale factor (during it's evolution back in time direction) may not vanish, unlike in the standard ?CDM case. In other words, the considered model demonstrates a cosmological bounce instead of the initial singularity. The famous formula, that leads to the bounce, is valid only for the dust-filled universe with p = 0 and, therefore, is not adequate for the Early Universe hot stage when the bounce happens. So, our results are qualitative in nature and must be used to obtain initial values for the hot stage of the Universe.

  18. Cosmological constraint on Brans-Dicke Model

    NASA Astrophysics Data System (ADS)

    Li, Ji-Xia; Wu, Feng-Quan; Li, Yi-Chao; Gong, Yan; Chen, Xue-Lei

    2015-12-01

    We combine new Cosmic Microwave Background (CMB) data from Planck with Baryon Acoustic Oscillation (BAO) data to constrain the Brans-Dicke (BD) theory, in which the gravitational constant G evolves with time. Observations of type Ia supernovae (SNeIa) provide another important set of cosmological data, as they may be regarded as standard candles after some empirical corrections. However, in theories that include modified gravity like the BD theory, there is some risk and complication when using the SNIa data because their luminosity may depend on G. In this paper, we assume a power law relation between the SNIa luminosity and G, but treat the power index as a free parameter. We then test whether the difference in distances measured with SNIa data and BAO data can be reduced in such a model. We also constrain the BD theory and cosmological parameters by making a global fit with the CMB, BAO and SNIa data set. For the CMB+BAO+SNIa data set, we find 0.08 × 10?2 < ? < 0.33 × 10?2 at the 68% confidence level (CL) and ?0.01 × 10?2 < ? < 0.43 × 10?2 at the 95% CL, where ? is related to the BD parameter ? by ? = ln(1 + 1/?).

  19. Cosmological constraint on Brans-Dicke Model

    E-print Network

    Li, Ji-Xia; Li, Yi-Chao; Gong, Yan; Chen, Xue-Lei

    2015-01-01

    We combine new Cosmic Microwave Background (CMB) data from Planck with Baryon Acoustic Oscillation (BAO) data to constrain the Brans-Dicke (BD) theory, in which the gravitational constant $G$ evolves with time. Observations of type Ia supernovae (SNeIa) provide another important set of cosmological data, as they may be regarded as standard candles after some empirical corrections. However, in theories that include modified gravity like the BD theory, there is some risk and complication when using the SNIa data because their luminosity may depend on $G$. In this paper, we assume a power law relation between the SNIa luminosity and $G$, but treat the power index as a free parameter. We then test whether the difference in distances measured with SNIa data and BAO data can be reduced in such a model. We also constrain the BD theory and cosmological parameters by making a global fit with the CMB, BAO and SNIa data set. For the CMB+BAO+SNIa data set, we find $0.08\\times10^{-2} < \\zeta <0.33\\times10^{-2} $ at ...

  20. History into Drama: The Perspective of "1 Henry IV."

    ERIC Educational Resources Information Center

    Champion, Larry S.

    1978-01-01

    Contrasts Shakespeare's "Henry V" and "Henry IV" series, in which human interaction becomes history, with plays such as "Julius Caesar," which focus on psychological analysis and the internalized protagonist. (MB)

  1. Ternary Weakly Amenable C*-algebras and JB*-triples

    E-print Network

    Ho, Tony; Russo, Bernard

    2012-01-01

    A well known result of Haagerup from 1983 states that every C*-algebra A is weakly amenable, that is, every (associative) derivation from A into its dual is inner. A Banach algebra B is said to be ternary weakly amenable if every continuous Jordan triple derivation from B into its dual is inner. We show that commutative C*-algebras are ternary weakly amenable, but that B(H) and K(H) are not, unless H is finite dimensional. More generally, we inaugurate the study of weak amenability for Jordan Banach triples, focussing on commutative JB*-triples and some Cartan factors.

  2. Possible Pasts: Historiography and Legitimation in "Henry VIII."

    ERIC Educational Resources Information Center

    Kamps, Ivo

    1996-01-01

    Aims to rehabilitate the reputation of Shakespeare's "Henry VIII" and emphasizes its potential usefulness in the classroom by reconsidering it in the context of Renaissance history writing. Shows how "Henry VIII" can be taught as a commentary on or seen as a continuation of incipient themes in "The Tempest" and "Henry V." (TB)

  3. On Stationary Axially Symmetric Solutions in Brans-Dicke Theory

    E-print Network

    Kirezli, P?nar

    2015-01-01

    Stationary axially symmetric Brans-Dicke-Maxwell solutions are re-examined in the framework of the Brans-Dicke theory. We see that, employing a particular parametrization of the standard axially symmetric metric simplifies the procedure of obtaining the Ernst equations for axially symmetric electro-vacuum space-times for this theory. This analysis also permit us to construct a two parameter extension in both Jordan and Einstein frames of an old solution generating technique frequently used to construct axially symmetric solutions for Brans-Dicke theory from a seed solution of General Relativity. As applications of this technique, several known and new solutions are constructed including a general axially symmetric BD-Maxwell solution of Plebanski-Demianski with vanishing cosmological constant, i.e. the Kinnersley solution and general magnetized Kerr-Newman type solutions. Some physical properties and circular motion of test particles for a particular subclass of Kinnersley solution, i.e. Kerr-Newman-NUT type ...

  4. Dynamical phase transition in the open Dicke model

    PubMed Central

    Klinder, Jens; Keßler, Hans; Wolke, Matthias; Mathey, Ludwig; Hemmerich, Andreas

    2015-01-01

    The Dicke model with a weak dissipation channel is realized by coupling a Bose–Einstein condensate to an optical cavity with ultranarrow bandwidth. We explore the dynamical critical properties of the Hepp–Lieb–Dicke phase transition by performing quenches across the phase boundary. We observe hysteresis in the transition between a homogeneous phase and a self-organized collective phase with an enclosed loop area showing power-law scaling with respect to the quench time, which suggests an interpretation within a general framework introduced by Kibble and Zurek. The observed hysteretic dynamics is well reproduced by numerically solving the mean-field equation derived from a generalized Dicke Hamiltonian. Our work promotes the understanding of nonequilibrium physics in open many-body systems with infinite range interactions. PMID:25733892

  5. Cosmic Evolution in Brans-Dicke Chameleon Cosmology

    E-print Network

    Mubasher Jamil; Ibrar Hussain; D. Momeni

    2011-08-02

    We have investigated the Brans-Dicke Chameleon theory of gravity and obtained exact solutions of the scale factor $a(t)$, scalar field $\\phi(t)$, an arbitrary function $f(\\phi)$ which interact with the matter Lagrangian in the action of the Brans-Dicke Chameleon theory and potential $V(\\phi)$ for different epochs of the cosmic evolution. We plot the functions $a(t)$, $\\phi(t)$, $f(t)$ and $V(\\phi)$ for different values of the Brans-Dicke parameter. In our models, there is no accelerating solution, only decelerating one with $q>0$. The physical cosmological distances have been investigated carefully. Further the statefinder parameters pair and deceleration parameter are discussed.

  6. Ya B Zeldovich's ideas and modern Brans - Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Novikov, I. D.; Shatskii, A. A.; Alexeyev, S. O.; Tret'yakova, D. A.

    2014-04-01

    We compare Ya B Zeldovich's ideas about Brans-Dicke theory and Mach's principles, contained in now-classical books, with modern results in this field. Our recent results on the Brans-Dicke cosmology with the cosmological term are presented. The Friedmann-Brans-Dicke equations are written for the flat Universe. The initial conditions for the model are provided by the presently observed Hubble constant, its first time derivative (the deceleration parameter), and matter density. The cosmological scenario with the scale factor not vanishing in the past, corresponding to the absence of the cosmological singularity, is analytically calculated. Instead of the singularity, the scale factor experiences a 'bounce' and demonstrates regular behavior at all times. Some ideas related to Mach's principle are also discussed.

  7. General class of vacuum Brans-Dicke wormholes

    SciTech Connect

    Lobo, Francisco S. N.; Oliveira, Miguel A.

    2010-03-15

    Recently, traversable wormhole geometries were constructed in the context of f(R) gravity. The latter is equivalent to a Brans-Dicke theory with a coupling parameter {omega}=0, which is apparently excluded from the narrow interval, -3/2<{omega}<-4/3, extensively considered in the literature of static wormhole solutions in vacuum Brans-Dicke theory. However, this latter interval is only valid for a specific choice of an integration constant of the field equations derived on the basis of a post-Newtonian weak field approximation, and there is no reason for it to hold in the presence of compact objects with strong gravitational fields. In this context, we construct a general class of vacuum Brans-Dicke wormholes that include the value of {omega}=0.

  8. Interacting Ghost Dark Energy in Brans-Dicke Theory

    E-print Network

    Esmaeil Ebrahimi; Ahmad Sheykhi

    2011-06-09

    We investigate the QCD ghost model of dark energy in the framework of Brans-Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans-Dicke theory. In this case we obtain the EoS and the deceleration parameters and a differential equation governing the evolution of ghost energy density. Interestingly enough, we find that the EoS parameter of the non-interacting ghost dark energy can cross the phantom line ($w_D=-1$) provided the parameters of the model are chosen suitably. Then, we generalize the study to the interacting ghost dark energy in both flat and non-flat Brans-Dicke framework and find out that the transition of $w_D$ to phantom regime can be more easily achieved for than when resort to the Einstein field equations is made.

  9. Published Ahead of Print 20 May 2011. 2011, 193(14):3662. DOI: 10.1128/JB.00201-11.J. Bacteriol.

    E-print Network

    Li, Yat

    Published Ahead of Print 20 May 2011. 2011, 193(14):3662. DOI: 10.1128/JB.00201-11.J. Bacteriol oneidensis MR-1 Pathway for Graphene Oxide Reduction by Deciphering the Electron Transport http://jb http://jb.asm.org/content/suppl/2011/06/22/193.14.3662.DC1.ht REFERENCES http://jb.asm.org/content/193

  10. A review of "The Isle of Pines, 1668: Henry Neville's Uncertain Utopia" by John Scheckter and Henry Neville 

    E-print Network

    Mills, Dan

    2012-01-01

    to the emerging history of human joy. John Scheckter and Henry Neville. ?e Isle of Pines, 1668: Henry Neville?s Uncertain Utopia. Farnham: Ashgate, 2011. xvii + 222 pp. $99.95. Review by ??? ?? ?, ? ????? ????? ??????????. Henry Neville?s 1688 text ?e Isle..., 1668: Henry Neville?s Uncertain Utopia, also includes ?ve chapters of interpretation that analyze this enigmatic utopian text, a text that has largely been neglected in seventeenth-century English literary studies. Such an edition of ?e Isle of Pines...

  11. Detecting metrologically useful entanglement in the vicinity of Dicke states

    NASA Astrophysics Data System (ADS)

    Apellaniz, Iagoba; Lücke, Bernd; Peise, Jan; Klempt, Carsten; Tóth, Géza

    2015-08-01

    We present a method to verify the metrological usefulness of noisy Dicke states of a particle ensemble with only a few collective measurements, without the need for a direct measurement of the sensitivity. Our method determines the usefulness of the state for the usual protocol for estimating the angle of rotation with Dicke states, which is based on the measurement of the second moment of a total spin component. It can also be used to detect entangled states that are useful for quantum metrology. We apply our method to recent experimental results.

  12. Inflation and dark energy from the Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Artymowski, Micha?; Lalak, Zygmunt; Lewicki, Marek

    2015-06-01

    We consider the Brans-Dicke theory motivated by the f(R) = R + ? Rn ? ? R2?n model to obtain a stable minimum of the Einstein frame scalar potential of the Brans-Dicke field. As a result we have obtained an inflationary scalar potential with non-zero value of residual vacuum energy, which may be a source of dark energy. In addition we discuss the probability of quantum tunnelling from the minimum of the potential. Our results can be easily consistent with PLANCK or BICEP2 data for appropriate choices of the value of n and ?.

  13. $?$ Parameter and Solar System constraint in Chameleon Brans Dick Theory

    E-print Network

    Khaled Saaidi; Abolhassan Mohammadi; Haidar Sheikhahmadi

    2011-12-31

    The post Newtonian parameter is considered in the Chameleon-Brans-Dicke frame. In the first step, the general form of this parameter and also effective gravitational constant is obtained. An arbitrary function for $f(\\Phi)$, which indicates the coupling between matter and scalar field, is introduced to investigate validity of solar system constraint. It is shown that Chameleon-Brans-Dicke model can satisfy the solar system constraint and gives us an $\\omega$ parameter of order $10^4$, which is in comparable to the constraint which has been indicated in {\\cite{17-a}}.

  14. Experimental realization of Dicke states of up to six qubits for multiparty quantum networking.

    PubMed

    Prevedel, R; Cronenberg, G; Tame, M S; Paternostro, M; Walther, P; Kim, M S; Zeilinger, A

    2009-07-10

    We report the first experimental generation and characterization of a six-photon Dicke state. The produced state shows a fidelity of F=0.56+/-0.02 with respect to an ideal Dicke state and violates a witness detecting genuine six-qubit entanglement by 4 standard deviations. We confirm characteristic Dicke properties of our resource and demonstrate its versatility by projecting out four- and five-photon Dicke states, as well as four-photon Greenberger-Horne-Zeilinger and W states. We also show that Dicke states have interesting applications in multiparty quantum networking protocols such as open-destination teleportation, telecloning, and quantum secret sharing. PMID:19659190

  15. Appreciating Gantos' Jack Henry as an Archetype.

    ERIC Educational Resources Information Center

    Watson, Jinx Stapleton

    2001-01-01

    Examines the contemporary realism of the literary character Jack Henry, a middle school child, as representative of two classic literary elements, the quest cycle and the lone hero. Concludes that classic structures of plots and characteristics of hero offer many modern protagonists a shape for their realistic and ordinary adventures. (SG/47)

  16. The Ideas of Henry Jenkins and Libraries

    ERIC Educational Resources Information Center

    Anderson, Byron

    2008-01-01

    Henry Jenkins, director of the Comparative Media Studies Program at the Massachusetts Institute of Technology and keynote speaker at the 2007 American Library Association's "Gaming, Learning and Libraries Symposium" in Chicago is a visionary leader in the areas of new media and media convergence. In a white paper on digital media and learning…

  17. McHenryBoone CarrollWhiteside

    E-print Network

    Lake Michigan 94 94 294 355 294 355 90 88 90 290 57 80 39 20 39 55 47 47 80 12 Lake McHenryBoone Winnebago Stephenson Ogle DuPageKane Kendall Will Cook CarrollWhiteside Lee DeKalb La Salle Bureau Putnam

  18. Henry Dyer: Engineer and Educational Innovator.

    ERIC Educational Resources Information Center

    Allsobrook, David; Mitchell, Gordon

    1997-01-01

    Describes the life and contributions of Scottish engineer Henry Dyer to educational developments in Japan and Scotland around the turn of the century. Relates his success in founding the Imperial College of Technology, Tokyo (Japan), and the lessons he brought back to Scotland after that experience. (DSK)

  19. Henry Ward Beecher: A Nation's Tribune.

    ERIC Educational Resources Information Center

    Chandler, Daniel Ross

    Henry Ward Beecher was America's most prominent 19th century liberal preacher and a major spokesperson for New England Transcendentalism. His philosophy integrated four fundamental themes: the creation of a moral code based on the internalization of values and peer group pressures, the establishment of the reform ideal of the impartial nonpartisan…

  20. Build A Comet! Dr. Henry Throop

    E-print Network

    Throop, Henry

    Build A Comet! Dr. Henry Throop Planetary Science Institute Tucson,Arizona, USA SciFest Africa, March 2013 #12;Comet Basics Comets are icy snowballs.They are made of the same things the rest of the planets are made of: rock and ice, mixed with a small amount of junk and goo (organic molecules) #12;Comet

  1. In the Style of Henry Moore

    ERIC Educational Resources Information Center

    Hinshaw, Craig

    2010-01-01

    In this article, the author describes an art project inspired by Henry Moore's sculptures. This project consists of two activities. In the first activity, students select, sand and stain a wood block that would become a base for their plaster sculpture. This activity would keep the students independently engaged (classroom management) while the…

  2. Thermodynamics Henri J.F. Jansen

    E-print Network

    Jansen, Henri J. F.

    Thermodynamics Henri J.F. Jansen Department of Physics Oregon State University August 19, 2010 #12;II #12;Contents PART I. Thermodynamics Fundamentals 1 1 Basic Thermodynamics. 3 1.1 Introduction of Thermodynamics. . . . . . . . . . . . . . . . . . 12 1.4 First law: Energy

  3. Some aspects of cylindrical solutions in Brans-Dicke gravity

    E-print Network

    Andres Arazi; Claudio Simeone

    2011-02-17

    Several points regarding cylindrical Brans-Dicke geometries are studied. The issue of particle trajectories for the vacuum cylindrical solution is revisited. The possible particular nature of a global string metric is analysed. The general form of the junction conditions for matching cylindrical solutions within this theory is written down, and the relation with the general relativity limit is discussed.

  4. Vacuum less global monopole in Brans-Dicke theory

    E-print Network

    Rahaman, F; Kalam, M; Mukherjee, R; Roy, T

    2007-01-01

    In the present work, the gravitational field of a vacuum less global monopole has been investigated in Brans-Dicke theory under weak field assumption of the field equations. It has been shown that the vacuum less global monopole exerts attractive gravitational effects on a test particle. It is dissimilar to the case studied in general relativity.

  5. Vacuum less global monopole in Brans-Dicke theory

    E-print Network

    F. Rahaman; M. Kalam; R. Mukherjee; S. Das; T. Roy

    2007-02-28

    In the present work, the gravitational field of a vacuum less global monopole has been investigated in Brans-Dicke theory under weak field assumption of the field equations. It has been shown that the vacuum less global monopole exerts attractive gravitational effects on a test particle. It is dissimilar to the case studied in general relativity.

  6. Constraints from CMB in the intermediate Brans-Dicke inflation

    E-print Network

    Antonella Cid; Sergio del Campo

    2011-01-24

    We study an intermediate inflationary stage in a Jordan-Brans-Dicke theory. In this scenario we analyze the quantum fluctuations corresponding to adiabatic and isocurvature modes. Our model is compared to that described by using the intermediate model in Einstein general relativity theory. We assess the status of this model in light of the seven-year WMAP data.

  7. Intermediate Inflation in the Jordan-Brans-Dicke Theory

    E-print Network

    Antonella Cid; Sergio del Campo

    2012-10-18

    We present an intermediate inflationary stage in a Jordan-Brans-Dicke theory. In this scenario we analyze the quantum fluctuations corresponding to adiabatic and isocurvature modes. The model is compared to that described by using the intermediate model in Einstein General Relativity theory. We assess the status of this model in light of the WMAP7 data.

  8. Cosmic Evolution in Generalised Brans-Dicke Theory

    E-print Network

    B. K. Sahoo; L. P. Singh

    2002-11-12

    We have studied the Generalised Brans-Dicke theory and obtained exact solutions of a(t),phi(t),and omega(t) for different epochs of the cosmic evolution .We discuss how inflation,decceleration,cosmic acceleration can result from this solution.The time variation of G(t) is also examined.

  9. The Truth of the Thing: Nonfiction in "Moby Dick"

    ERIC Educational Resources Information Center

    Hilbert, Betsy

    1986-01-01

    Looks at Melville's narrative construction of "onion-like...layers of truth" that combine romance and textbook, presents critics' discussion and scholars' treatment of the cetological information present in the text, offers an explanation for the lack of recognition due to the nonfictional parts of "Moby Dick." (JK)

  10. Author! Author! The Gallant Children's Author: Dick King-Smith

    ERIC Educational Resources Information Center

    Brodie, Carolyn S.

    2005-01-01

    This column presents a brief biography of Dick King-Smith. Born on March 27, 1922 and raised in Gloucestershire, England, he grew up with animals of all kinds. King-Smith was a farmer for twenty years and then became a school teacher. He was also a soldier during wartime, a traveling salesman, shoe factory worker, and television presenter. He…

  11. Using Herman Melville's "Moby-Dick" to Explore Geographic Themes

    ERIC Educational Resources Information Center

    Gesler, Wil

    2004-01-01

    The classic American novel, Herman Melville's "Moby-Dick", can be used in geography and English classes at the high school and college levels to explore five themes that have a geographic component or are of interest to geography students: (1) the journey, (2) human/environment interactions, (3) social relationships in space, (4) acquiring…

  12. Wiggly Strings in Linearized Brans-Dicke Gravity

    E-print Network

    Arazi, A; Arazi, Andres; Simeone, Claudio

    2000-01-01

    The metric around a wiggly cosmic string is calculated in the linear approximation of Brans-Dicke theory of gravitation. The equations of motion for relativistic and non-relativistic particles in this metric are obtained. Light propagation is also studied and it is shown that photon trajectories can be bounded.

  13. Contaminant Monitoring Strategy for Henrys Lake, Idaho

    SciTech Connect

    John S. Irving; R. P. Breckenridge

    1992-12-01

    Henrys Lake, located in southeastern Idaho, is a large, shallow lake (6,600 acres, {approx} 17.1 feet maximum depth) located at 6,472 feet elevation in Fremont Co., Idaho at the headwaters of the Henrys Fork of the Snake River. The upper watershed is comprised of high mountains of the Targhee National Forest and the lakeshore is surrounded by extensive flats and wetlands, which are mostly privately owned. The lake has been dammed since 1922, and the upper 12 feet of the lake waters are allocated for downriver use. Henrys Lake is a naturally productive lake supporting a nationally recognized ''Blue Ribbon'' trout fishery. There is concern that increasing housing development and cattle grazing may accelerate eutrophication and result in winter and early spring fish kills. There has not been a recent thorough assessment of lake water quality. However, the Department of Environmental Quality (DEQ) is currently conducting a study of water quality on Henrys Lake and tributary streams. Septic systems and lawn runoff from housing developments on the north, west, and southwest shores could potentially contribute to the nutrient enrichment of the lake. Many houses are on steep hillsides where runoff from lawns, driveways, etc. drain into wetland flats along the lake or directly into the lake. In addition, seepage from septic systems (drainfields) drain directly into the wetlands enter groundwater areas that seep into the lake. Cattle grazing along the lake margin, riparian areas, and uplands is likely accelerating erosion and nutrient enrichment. Also, cattle grazing along riparian areas likely adds to nutrient enrichment of the lake through subsurface flow and direct runoff. Stream bank and lakeshore erosion may also accelerate eutrophication by increasing the sedimentation of the lake. Approximately nine streams feed the lake (see map), but flows are often severely reduced or completely eliminated due to irrigation diversion. In addition, subsurface flows can occur as a result of severe cattle grazing along riparian areas and deltas. Groundwater and springs also feed the lake, and are likely critical for oxygen supply during winter stratification. During the winter of 1991, Henrys Lake experienced low dissolved oxygen levels resulting in large fish kills. It is thought that thick ice cover combined with an increase in nutrient loads created conditions resulting in poor water quality. The Idaho Department of Health and Welfare, DEQ is currently conducting a study to determine the water quality of Henrys Lake, the sources contributing to its deterioration, and potential remedial actions to correct problem areas.

  14. GS-Lab Report 2011 by J.B. de Smeth, 1 GeoScience-Laboratory

    E-print Network

    samples as part of her research work :"Investigation of Gully Erosion: Integrating objects from high resolution image analysis and spatially dynamic erosion modeling" #12;GS-Lab Report 2011 by J.B. de Smeth, 4

  15. Nonclassical effects in a highly nonlinear generalized homogeneous Dicke model

    SciTech Connect

    Grinberg, Horacio

    2011-11-15

    An intensity dependent nonlinear coupling model of N two-level atoms (generalized Dicke model) interacting dispersively with a bimodal cavity field via two-photon transitions is investigated in a scenario where the rotating wave approximation is assumed. The model becomes homogeneous in the sense that the spin transition frequency is the same for all atoms and the coupling constants emerging from the collective interactions of the atomic system with the cavity field depend only on the particular radiation field mode. This allows us to represent the Dicke Hamiltonian entirely in terms of the total angular momentum J. It is assumed that, initially, the atomic system and the field are in a disentangled state where the field modes are in Glauber coherent states and the atomic system is a superposition of states |JM> (Dicke states). The model is numerically tested against simulations of normal squeezing variance of the field, squeezing factors based on the Heisenberg uncertainty principle, along with the statistical properties of the light leading to the possible production of nonclassical effects, such as degree of second-order coherence in the modes, degree of intermode correlation, as well as violation of the Cauchy-Schwartz inequality. Analytical expression of the total density operator matrix elements at t>0 shows the present nonlinear model to be strongly entangled, which is reflected in the time evolution of the linear entropy, where the superposition states are reduced to statistical mixtures. Thus, the present generalized Dicke model does not preserve the modulus of the Bloch vector. The computations, performed in the weak coupling and strong field limits, were conducted via second-order Dyson perturbative expansion of the time evolution operator matrix elements for the totality of the angular momentum states of the atomic system. - Highlights: > The present highly nonlinear generalized Dicke model involves two-photon transitions. > Quantum coherences significantly affect the dynamics of the atomic system. > At t>0 the time-dependent density operator matrix becomes strongly entangled. > Linear entropy shows that the superposition states turn into statistical mixtures. > The present Dicke model does not preserve the modulus of the Bloch vector.

  16. 2012, 194(6):1615. DOI: 10.1128/JB.06715-11.J. Bacteriol. Teresa A. Coutinho

    E-print Network

    2012, 194(6):1615. DOI: 10.1128/JB.06715-11.J. Bacteriol. Teresa A. Coutinho Goesmann, Jürg E. Frey of Clinical http://jb.asm.org/content/194/6/1615 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/194/6/1615#ref-list-1 This article cites 14 articles, 8

  17. Images of Moby-Dick: An exhibition of editions of Herman Melville's great novel of whaling

    E-print Network

    Mason, Alexandra; Helyar, James

    1995-01-01

    -Dick An exhibition of editions of Herman Melville's great novel of whaling Department of Special Collections KENNETH SPENCER RESEARCH LIBRARY The University of Kansas Images of Moby-Dick U E AI > OUT. Images of Mo by-Dick An exhibition of editions... of Herman Melville's great novel of whaling Department of Special Collections KENNETH SPENCER RESEARCH LIBRARY The University of Kansas Lawrence, Kansas: 1995 Catalogue and exhibition by ALEXANDRA MASON; designed by JAMES HELYAR This publication...

  18. The action of the complete Brans-Dicke theory

    E-print Network

    Kofinas, Georgios

    2015-01-01

    Recently the most general completion of Brans-Dicke theory was appeared with energy exchanged in a uniquely defined way between the scalar field and ordinary matter, given that the equation of motion for the scalar field keeps the simple wave form of Brans-Dicke. Here, it is found the action that provides the whole set of the field equations. The matter turns out to be non-minimally coupled even in the Jordan frame. The action in the Einstein frame is also found and the condition for the scalar field being non-ghost is identified. A symmetry transformation of the vacuum action in the Jordan frame is found which consists of a conformal transformation of the metric together with a redefinition of the scalar field.

  19. Unified dark fluid in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Tripathy, Sunil K.; Behera, Dipanjali; Mishra, Bivudutta

    2015-04-01

    Anisotropic dark energy cosmological models are constructed in the frame work of generalised Brans-Dicke theory with a self-interacting potential. A unified dark fluid characterised by a linear equation of state is considered as the source of dark energy. The shear scalar is considered to be proportional to the expansion scalar simulating an anisotropic relationship among the directional expansion rates. The dynamics of the universe in the presence of a unified dark fluid in anisotropic background have been discussed. The presence of an evolving scalar field makes it possible to get an accelerating phase of expansion even for a linear relationship among the directional Hubble rates. It is found that the anisotropy in expansion rates does not affect the scalar field, the self-interacting potential, but it controls the non-evolving part of the Brans-Dicke parameter.

  20. Unified dark fluid in Brans-Dicke theory

    E-print Network

    Sunil K. Tripathy; Dipanjali Behera; Bivudutta Mishra

    2015-03-30

    Anisotropic dark energy cosmological models are constructed in the frame work of generalised Brans-Dicke theory with a self interacting potential. Wet dark fluid characterized by a linear equation of state is considered as the source of dark energy. Shear scalar is considered to be proportional to the expansion scalar simulating an anisotropic relationship among the directional expansion rates. The dynamics of the universe in presence of wet dark fluid in anisotropic background have been discussed. The presence of evolving scalar field makes it possible to get accelerating phase of expansion even for a linear relationship among the directional Hubble rates. It is found that, the anisotropy in expansion rates does not affect the scalar field, self interacting potential but it controls the non-evolving part of the Brans- Dicke parameter.

  1. Ricci Dark Energy in Brans-Dicke theory

    E-print Network

    Chao-Jun Feng

    2008-06-04

    A holographic dark energy from Ricci scalar curvature called Ricci dark energy was proposed recently. In this model the future event horizon area is replaced by the inverse of the Ricci scalar curvature. We study the evolution of equation of state of the Ricci dark energy and the transition from decelerated to accelerated expansion of the universe in the Brans-Dicke theory, which is a natural extension of general relativity. We find that the current acceleration of our universe is well explained.

  2. Digital Quantum Rabi and Dicke Models in Superconducting Circuits

    PubMed Central

    Mezzacapo, A.; Las Heras, U.; Pedernales, J. S.; DiCarlo, L.; Solano, E.; Lamata, L.

    2014-01-01

    We propose the analog-digital quantum simulation of the quantum Rabi and Dicke models using circuit quantum electrodynamics (QED). We find that all physical regimes, in particular those which are impossible to realize in typical cavity QED setups, can be simulated via unitary decomposition into digital steps. Furthermore, we show the emergence of the Dirac equation dynamics from the quantum Rabi model when the mode frequency vanishes. Finally, we analyze the feasibility of this proposal under realistic superconducting circuit scenarios. PMID:25500735

  3. Cylindrical sources in full Einstein and Brans-Dicke gravity

    E-print Network

    Arazi, A; Arazi, Andres; Simeone, Claudio

    2000-01-01

    It was shown by Hiscock that the energy-momentum tensor commonly used to model local cosmic strings in linearized Einstein gravity can be extended and used in the full theory, obtaining a metric in the exterior of the source with the same deficit angle. Here we show that this tensor is an exception within a family for which a static solution does not exist in full Einstein nor in Brans-Dicke gravity.

  4. Hydrodynamics of Gaseous System in Massive Brans-Dicke Gravity

    E-print Network

    M. Sharif; Rubab Manzoor

    2015-10-16

    This paper explores hydrodynamics and hydrostatic of a star in post-Newtonian approximation of massive Bran-Dicke gravity. We study approximated solution of the field equations upto $O(c^{-4})$ and generalize Euler equation of motion. We then formulate equations governing hydrodynamics, stability and instability of the system. Finally, we discuss spherically symmetric stars for a specific barptropic case like dust, cosmic string and domain wall in this scenario.

  5. Antigravity in F( R) and Brans-Dicke theories

    NASA Astrophysics Data System (ADS)

    Oikonomou, V. K.; Karagiannakis, N.

    2014-12-01

    We study antigravity in F( R)-theory originating scalar-tensor theories and also in Brans-Dicke models without cosmological constant. For the F( R) theory case, we obtain the Jordan frame antigravity scalar-tensor theory by using a variant of the Lagrange multipliers method and we numerically study the time dependent effective gravitational constant. As we shall demonstrate in detail by using some viable F( R) models, although the initial F( R) models have no antigravity, their scalar-tensor counterpart theories might or not have antigravity, a fact mainly depending on the parameter that characterizes antigravity. Similar results hold true in the Brans-Dicke model, which we also studied numerically. In addition, regarding the Brans-Dicke model we also found some analytic cosmological solutions. Since antigravity is an unwanted feature in gravitational theories, our findings suggest that in the case of F( R) theories, antigravity does not occur in the real world described by the F( R) theory, but might occur in the Jordan frame scalar-tensor counterpart of the F( R) theory, and this happens under certain circumstances. The central goal of our study is to present all different cases in which antigravity might occur in modified gravity models.

  6. The Life and Experiences of Sir Henry Enfield Roscoe : Selected Roscoe, Henry Enfield

    E-print Network

    Gertz, Michael

    , 1862 #12;Robert W. Bunsen #12;Hermann von Helmholtz #12;, Kirchhoff and Roscoe, Photo Manchester 1862 78/79 [59] Robert W. Bunsen, Photo 94/95 [60] Hermann von Helmholtz, Photo #12;Henry E. Roscoe, 1906 #12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12;#12

  7. James McHenry, M.D. of Fort McHenry in Baltimore Towne.

    PubMed

    Miller, J M

    1992-05-01

    James McHenry, M.D., whose name is best known for the fort immortalized in the Star Spangled Banner, was one of the early members of Med Chi. In addition, he was secretary to George Washington; aide to Lafayette; member of the Maryland Senate, the General Assembly of Maryland, and the US Congress; and signer of the Constitution. PMID:1625535

  8. Uncorrectedproofs-JohnBenjaminsPublishingCompany JB[v.20020404] Prn:30/10/2006; 15:03 F: HCP20309.tex / p.1 (48-114)

    E-print Network

    Hespos, Susan J.

    Uncorrectedproofs-JohnBenjaminsPublishingCompany JB[v.20020404] Prn:30/10/2006; 15:03 F: HCP20309, Landau, & Dosher 2001; Slobin 2000). #12;Uncorrectedproofs-JohnBenjaminsPublishingCompany JB[v.20020404

  9. Obituary: Richard L. (Dick) Walker, Jr., 1938-2005

    NASA Astrophysics Data System (ADS)

    Pier, Jeffrey R.; Mason, Brian

    2005-12-01

    Dick Walker, 67, died 30 March 2005 in Flagstaff, AZ, following a long illness. He was born on 9 March 1938 in Hampton, Iowa and grew up in Waterloo, Iowa. As a child, Dick was fascinated with astronomy and built his own telescope. He saved his pennies and bought and read every book on the subject he could find. He also raised pigeons, naming four of them Hertzsprung, Hoyle, Gamow, and Kron. In 1957, the year Sputnik was launched, Dick began his college studies at the University of Northern Iowa in Cedar Falls. In 1959, he transferred to the State University of Iowa (subsequently renamed the University of Iowa) in Iowa City, where he earned a BA degree in astronomy and physics in 1963. He joined the staff of the U.S. Naval Observatory in Washington, DC, where he worked in the Time Service Division for a year before his assignment to the Astrometry and Astrophysics Division. Dick relocated to Flagstaff, AZ, in 1966 to continue his Naval Observatory service at the Flagstaff Station. His retirement in May 1999, ended a thirty-six-year career with USNO. Dick was first and foremost an observational astronomer. From the mid 1960s through the late 1970s, much of Dick's time was devoted to the measurement of binary stars, observing with the 12-inch and 26-inch refractors in Washington and later the 40-inch and 61-inch reflectors in Flagstaff. He also made many trips to Lick Observatory to work with the 36-inch Clark Refractor there. During this time he consulted with Charles Worley, who was observing on the 26-inch, to make sure time was well-spent examining doubles that could not be observed in Washington. This period of observing overlapped with the early years of speckle interferometry, and Dick's observations, made with the largest telescope used for micrometry at the time, were very important for ascertaining the veracity of this new technique. He was a studious and very careful observer of doubles and made over 8,000 measures, resulting in almost 3,000 mean positions. While measuring known systems for orbital analysis, he discovered 22 pairs (mostly additional components to these systems) and moving pairs, and his highlighting the rapid motion of these systems resulted in them being placed on many programs and led to the more definitive orbits of today. As a staff member of the Flagstaff Station, Dick was, for over 30 years, one of the principal observers on the 61-inch parallax program. He also ventured into other areas of astronomy, including planetary systems. He is credited with discovering the moon of Saturn, Epimetheus, in December 1966, with the USNO Flagstaff Station 61-inch Kaj Strand Astrometric Reflector. He also obtained photographic plates to determine accurate positions of the outer planets for the Voyager 2 approaches to Uranus in 1986 and Neptune in 1989. It is interesting to note that Dick's career in observational astronomy spanned three different eras of astronomical instrumentation and technique. He began his career doing eyeball astronomy, using a filar micrometer to measure double star separations. Photographic astronomy then became dominant and he took many thousands of plates. During the last ten years of his career, electronic cameras, primarily CCDs, replaced photographic plates. He readily adapted to the changing technologies. A man of many interests, Dick was fascinated by the history of astronomy, especially archeoastronomy, as well as Egyptology. He taught himself the language of hieroglyphics. In 1977, having accumulated several weeks of vacation time, he set off on a trek to walk the Nile for 500 miles from Aswan to Cairo. One night, in the town Asyut along the Nile, he was brought into the police station. The local inhabitants found it hard to credit his story that he was simply on a walk and questioned him as a possible Israeli spy. Following his retirement from the Naval Observatory, Dick consulted in a couple of construction projects. He designed the analemma and the skywalk star fields for the Koch Center for Science, Math, and Technology at Deerfield Academy in Massachusetts. He also c

  10. An Integrated View Into Multivariate Associations Inferred From TCGA Cancer Data - Dick Kreisberg, TCGA Scientific Symposium 2011

    Cancer.gov

    Home News and Events Multimedia Library Videos An Integrated View Into Multivariate Associations Inferred From TCGA Cancer Data - Dick Kreisberg An Integrated View Into Multivariate Associations Inferred From TCGA Cancer Data - Dick Kreisberg, TCGA

  11. Do massive Brans-Dicke theories of gravitation imitate Brans-Dicke theories with nonzero divergence of energy-momentum tensor

    NASA Technical Reports Server (NTRS)

    Smalley, L. L.

    1974-01-01

    Acharya and Hogan (1973) have introduced a massive scalar field into the usual Brans-Dicke (1961) theory of gravitation. Formally they obtain certain field equations. The assumption of a nonzero divergence for T mu nu (or equivalently the introduction of sources) formally imitates a massive Brans-Dicke and satisfies the condition of Acharya and Hogan that the theory be indistinguishable with the classical test of the Einstein theory. Although it was shown elsewhere that the modified Brans-Dicke theory agrees with the classical test under certain conditions, there were no specified limits on omega, a similar circumstance discovered by Acharya and Hogan for the massive scalar field.

  12. A critical bibliography of Dr. Henry Sacheverell

    E-print Network

    Madan, F. F. (Francis Falconer); Speck, W. A. (William Arthur)

    1978-01-01

    of Sir John Pac\\ington against William Bishop of Wor cester and Mr. Lloyd his son, 1702. On p. 11 appears a letter of Lloyd's dated 29 July 1702 denying his authorship of The Character of a Churchman as alleged in "a rccendy published piece..., that wellwishcrs to die Church should "hang out the bloody flag and banner of defiance" was long remembered. William Bisset was to call Sacheverell "the bloody flag officer" in 1709. 1 June 1702. Henry Sacheverell The political Union. A discourse shewing...

  13. Teaching Special Relativity: Minkowski trumps Einstein Richard Conn Henry

    E-print Network

    Teaching Special Relativity: Minkowski trumps Einstein Richard Conn Henry The Johns Hopkins by Maryland Space Grant Consortium Teaching Special Relativity: Minkowski trumps Einstein Richard Conn Henry badly we teach special relativity encapsulates the practical problem of teaching physics to the freshman

  14. Professor Henry, Mr. Faraday, and the Hunt for Electromagnetic Induction

    NASA Astrophysics Data System (ADS)

    Moyer, Albert E.

    1997-04-01

    On different sides of the Atlantic but about the same time, Michael Faraday and Joseph Henry announced success in a quest that had preoccupied the scientific community for a decade: coaxing electricity from magnetism. "Mutual induction," what Faraday and Henry had identified in the early 1830s, would turn out to be not only a foundational concept in the physics of electricity and magnetism but also the principle behind the technology of electrical transformers and generators--two mainstays of industrialization. Although Faraday's breakthrough in London and Henry's in Albany might appear to be classic examples of "independent discovery," they were not. The two natural philosophers shared a similar orientation toward their research and, moreover, a distinctive laboratory instrument: Henry's new, powerful electromagnet. Thus, the story of Henry's and Faraday's search for induction illuminates not only the workings of Victorian science but also the crucial part that an instrument--the unadorned hardware--can play in scientific inquiry. Albert Moyer takes this story from his biography of Joseph Henry that Smithsonian Institution Press is about to publish in commemoration of the 200th anniversary of Henry's birth. The biography focuses on Henry's early and middle years, 1797-1847, from his emergence as America's foremost physical scientist to his election as the Smithsonian Institution's first director.

  15. 75 FR 21288 - Henry Gas Storage LLC; Notice of Application

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-23

    ... Energy Regulatory Commission Henry Gas Storage LLC; Notice of Application April 16, 2010. Take notice that on April 5, 2010, Henry Gas Storage LLC (HGS), 1010 Lamar, Suite 1720, Houston, Texas 77002, filed... section 7(c)(1)(B) of the Natural Gas Act (NGA), to perform specific temporary activity related to...

  16. THE WHOLESOMENESS OF' OYSTERS AS FOOD By Henry C. Rowe

    E-print Network

    THE WHOLESOMENESS OF' OYSTERS AS FOOD J1. By Henry C. Rowe President Connecticut Oyster Growers' Association and New York and New E1zgland . Oyster Skippers' Association, New Haven, Conn. ~ Paper presented 259 #12;Blank page retained for pagination #12;THE WHOLESOMENESS OF OYSTERS AS FOOD. ~ By HENRY C

  17. Published Ahead of Print 6 May 2011. 2011, 193(13):3397. DOI: 10.1128/JB.05139-11.J. Bacteriol.

    E-print Network

    McFall-Ngai, Margaret

    Published Ahead of Print 6 May 2011. 2011, 193(13):3397. DOI: 10.1128/JB.05139-11.J. Bacteriol Member of the Draft Genome of Phaeobacter gallaeciensis http://jb.asm.org/content/193/13/3397 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/193/13/3397#ref

  18. Published Ahead of Print 25 May 2012. 2012, 194(15):3977. DOI: 10.1128/JB.00290-12.J. Bacteriol.

    E-print Network

    Courcelle, Justin

    Published Ahead of Print 25 May 2012. 2012, 194(15):3977. DOI: 10.1128/JB.00290-12.J. Bacteriol Characterization of the Primosome http://jb.asm.org/content/194/15/3977 Updated information and services can be found at: These include: SUPPLEMENTAL MATERIAL Supplemental material REFERENCES http://jb

  19. Published Ahead of Print 4 May 2012. 2012, 194(14):3636. DOI: 10.1128/JB.00333-12.J. Bacteriol.

    E-print Network

    Published Ahead of Print 4 May 2012. 2012, 194(14):3636. DOI: 10.1128/JB.00333-12.J. Bacteriol Thermophilic Synechococcus Strains and Novel Miniature Transposable Elements in http://jb.asm.org/content/194/14/3636 Updated information and services can be found at: These include: SUPPLEMENTAL MATERIAL ml http://jb

  20. Published Ahead of Print 30 September 2011. 2011, 193(23):6517. DOI: 10.1128/JB.05488-11.J. Bacteriol.

    E-print Network

    Zhang, Yang

    Published Ahead of Print 30 September 2011. 2011, 193(23):6517. DOI: 10.1128/JB.05488-11.J Validation for Chlamydia Structural Modeling of andAb Initio http://jb.asm.org/content/193/23/6517 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/193/23/6517#ref

  1. Published Ahead of Print 1 July 2011. 2011, 193(17):4549. DOI: 10.1128/JB.00415-11.J. Bacteriol.

    E-print Network

    Alvarez-Cohen, Lisa

    Published Ahead of Print 1 July 2011. 2011, 193(17):4549. DOI: 10.1128/JB.00415-11.J. Bacteriol, dioxanivoransStrain CB1190 1,4-Dioxane-Degrading Pseudonocardia Genome Sequence of the http://jb.asm.org/content/193/17/4549 Updated information and services can be found at: These include: REFERENCES http://jb

  2. Published Ahead of Print 14 March 2014. 2014, 196(10):1901. DOI: 10.1128/JB.01489-14.J. Bacteriol.

    E-print Network

    Gage, Daniel J.

    Published Ahead of Print 14 March 2014. 2014, 196(10):1901. DOI: 10.1128/JB.01489-14.J. BacteriolNtrReveals that Enzyme EI Nitrogen-Type Phosphotransferase System Biochemical Characterization of a http://jb.asm.org/content/196/10/1901 Updated information and services can be found at: These include: REFERENCES http://jb

  3. Published Ahead of Print 21 October 2011. 2012, 194(1):185. DOI: 10.1128/JB.05926-11.J. Bacteriol.

    E-print Network

    McFall-Ngai, Margaret

    Published Ahead of Print 21 October 2011. 2012, 194(1):185. DOI: 10.1128/JB.05926-11.J. Bacteriol That Depend on the Production of Antigenically Distinct Outer Sensor Kinase RscS Induces the http://jb.asm.org/content/194/1/185 Updated information and services can be found at: These include: REFERENCES http://jb

  4. Published Ahead of Print 16 March 2012. 2012, 194(10):2637. DOI: 10.1128/JB.06725-11.J. Bacteriol.

    E-print Network

    Courcelle, Justin

    Published Ahead of Print 16 March 2012. 2012, 194(10):2637. DOI: 10.1128/JB.06725-11.J. Bacteriol Damage in Transcription following UV-Induced DNA Mfd Is Required for Rapid Recovery of http://jb.asm.org/content/194/10/2637 Updated information and services can be found at: These include: REFERENCES http://jb

  5. JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH, VOL. 118, 116, doi:10.1002/2013JB010215, 2013 On the effects of thermally weakened ductile shear zones

    E-print Network

    Fialko, Yuri

    JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH, VOL. 118, 1­16, doi:10.1002/2013JB010215, 2013. Res. Solid Earth, 118, doi:10.1002/2013JB010215. 1. Introduction [2] Large earthquakes are often. (ctakeuchi@ucsd.edu) ©2013. American Geophysical Union. All Rights Reserved. 2169-9313/13/10.1002/2013JB

  6. Published Ahead of Print 22 July 2011. 2011, 193(19):5164. DOI: 10.1128/JB.05188-11.J. Bacteriol.

    E-print Network

    Igoshin, Oleg

    Published Ahead of Print 22 July 2011. 2011, 193(19):5164. DOI: 10.1128/JB.05188-11.J. Bacteriol xanthus Development Quantifying Aggregation Dynamics during http://jb.asm.org/content/193/19/5164 Updated information and services can be found at: These include: SUPPLEMENTAL MATERIAL ml http://jb

  7. JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH, VOL. 118, 58885902, doi:10.1002/2013JB010231, 2013 Effect of fault heterogeneity on rupture dynamics: An experimental

    E-print Network

    Nicolas, Chamot-Rooke

    JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH, VOL. 118, 5888­5902, doi:10.1002/2013JB010231, 2013.1002/2013JB010231. 1. Introduction [2] Strong motions records show that the rupture pro- cess occurring Geophysical Union. All Rights Reserved. 2169-9313/13/10.1002/2013JB010231 understood as complex slipping

  8. Published Ahead of Print 25 May 2012. 2012, 194(15):3995. DOI: 10.1128/JB.00108-12.J. Bacteriol.

    E-print Network

    McFall-Ngai, Margaret

    Published Ahead of Print 25 May 2012. 2012, 194(15):3995. DOI: 10.1128/JB.00108-12.J. Bacteriol of Squid Aminopeptidase and Evidence for Its Characterization of a Vibrio fischeri http://jb.asm.org/content/194/15/3995 Updated information and services can be found at: These include: REFERENCES http://jb

  9. 2012, 194(5):1275. DOI: 10.1128/JB.06710-11.J. Bacteriol. DeSalle and Daniel H. Fine

    E-print Network

    DeSalle, Rob

    2012, 194(5):1275. DOI: 10.1128/JB.06710-11.J. Bacteriol. DeSalle and Daniel H. Fine Maribasappa actinomycetemcomitans RHAA1, Isolated Genome Sequence of Aggregatibacter http://jb.asm.org/content/194/5/1275 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/194/5/1275#ref

  10. Published Ahead of Print 27 June 2008. 2008, 190(17):5879. DOI: 10.1128/JB.00685-08.J. Bacteriol.

    E-print Network

    Elliot, Marie A.

    Published Ahead of Print 27 June 2008. 2008, 190(17):5879. DOI: 10.1128/JB.00685-08.J. Bacteriol in Aerial Hypha Function and Redundancy of the Chaplin http://jb.asm.org/content/190/17/5879 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/190/17/5879#ref

  11. Published Ahead of Print 20 July 2012. 2012, 194(19):5245. DOI: 10.1128/JB.00671-12.J. Bacteriol.

    E-print Network

    Redfield, Rosemary J. "Rosie"

    Published Ahead of Print 20 July 2012. 2012, 194(19):5245. DOI: 10.1128/JB.00671-12.J. Bacteriol Transformation in Receptor Protein Site-Regulated Genes Are Seventeen Sxy-Dependent Cyclic AMP http://jb.asm.org/content/194/19/5245 Updated information and services can be found at: These include: REFERENCES http://jb

  12. Published Ahead of Print 4 April 2014. 2014, 196(12):2178. DOI: 10.1128/JB.01475-14.J. Bacteriol.

    E-print Network

    Powers, Robert

    Published Ahead of Print 4 April 2014. 2014, 196(12):2178. DOI: 10.1128/JB.01475-14.J. Bacteriol, and Transcription Staphylococcus aureus Growth, Influence of Iron and Aeration on http://jb.asm.org/content/196 material REFERENCES http://jb.asm.org/content/196/12/2178#ref-list-1at: This article cites 65 articles, 34

  13. Published Ahead of Print 9 June 2014. 2014, 196(16):3002. DOI: 10.1128/JB.01811-14.J. Bacteriol.

    E-print Network

    Murray, Andrew W.

    Published Ahead of Print 9 June 2014. 2014, 196(16):3002. DOI: 10.1128/JB.01811-14.J. Bacteriol Specificity: a Cross-Reacting DNA-Binding A Model for the Evolution of Biological http://jb Supplemental material REFERENCES http://jb.asm.org/content/196/16/3002#ref-list-1at: This article cites 32

  14. Determination of Dicke states equivalent under stochastic local operations and classical communication

    NASA Astrophysics Data System (ADS)

    Wu, Xia; Yang, Ying-hui; Wen, Qiao-yan; Qin, Su-juan; Gao, Fei

    2015-11-01

    It has been proven by Rana et al. that the n -qubit generic Dicke states |GD (n ,? )> are uniquely determined, among arbitrary states, by their (? +1 ) -partite reduced density matrices, and (n -1 ? ) number of them which have one party common to all are sufficient. We show that among arbitrary states, Dicke-type states are also uniquely determined by their (? +1 ) -partite reduced density matrices. Here, by Dicke-type states, we mean all multiqubit pure states that are stochastic local operations and classical communication equivalent to the n -qubit standard Dicke state |D (n ,? )> . Moreover, we find two kinds of subsets of the (? +1 ) -partite reduced density matrices set, both of which can determine the Dicke-type states. More importantly, the number of elements in these two subsets is much smaller than (n -1 ? ) .

  15. Five-dimensional Brans-Dicke theory and cosmic acceleration

    NASA Astrophysics Data System (ADS)

    Qiang, Li-E.; Ma, Yongge; Han, Muxin; Yu, Dan

    2005-03-01

    We consider a 5-dimensional scalar-tensor theory which is a direct generalization of the original 4-dimensional Brans-Dicke theory to five dimensions. By assuming that there is a hypersurface-orthogonal spacelike Killing vector field in the underlying 5-dimensional spacetime, the theory is reduced to a 4-dimensional theory where the 4-metric is coupled with two scalar fields. The cosmological implication of this reduced theory is then studied in the Robertson-Walker model. It turns out that the two scalar fields may account naturally for the present accelerated expansion of our universe. The observational restriction of the reduced cosmological model is also analyzed.

  16. Exploring Symmetry Breaking at the Dicke Quantum Phase Transition

    SciTech Connect

    Baumann, K.; Mottl, R.; Brennecke, F.; Esslinger, T.

    2011-09-30

    We study symmetry breaking at the Dicke quantum phase transition by coupling a motional degree of freedom of a Bose-Einstein condensate to the field of an optical cavity. Using an optical heterodyne detection scheme, we observe symmetry breaking in real time and distinguish the two superradiant phases. We explore the process of symmetry breaking in the presence of a small symmetry-breaking field and study its dependence on the rate at which the critical point is crossed. Coherent switching between the two ordered phases is demonstrated.

  17. Interacting HDE and NADE in Brans-Dicke Chameleon Cosmology

    E-print Network

    Ahmad Sheykhi; Mubasher Jamil

    2010-12-21

    Motivated by the recent work of one of us [1], we generalize this work to the case where the pressureless dark matter and the holographic dark energy do not conserve separately but interact with each other. We investigate the cosmological applications of interacting holographic dark energy in Brans-Dicke theory with chameleon scalar field which is non-minimally coupled to the matter field. We find out that in this model the phantom crossing can be constructed if the model parameters are chosen suitably. We also perform the study for the new agegraphic dark energy model and calculate some relevant cosmological parameters and their evolution.

  18. An interview with Dick Davidson. Interview by Mary Grayson.

    PubMed

    Davidson, D

    1998-07-01

    Dick Davidson, president of the American Hospital Association since 1991, has witnessed--and advocated--a revolution among the members. Hospitals have become much more than providers of acute care. Many of them now strive to manage a continuum of coordinated services to their communities. Their next big step is learning to manage risk for Medicare patients by becoming provider sponsored organizations. None of this is made easier, Davidson believes, by the public's sagging confidence in hospitals. In fact, he sees regaining that trust and respect as health care's top priority. PMID:9697606

  19. Diplomatic Metonymy and Antithesis in 3 Henry VI

    E-print Network

    Craigwood, J.

    2014-06-19

    ://res.oxfordjournals.org/ D ow nloaded from represents’ and so constructs the sender he apparently represents.3 The Henry VI plays dramatize this construction and replacement of sender by delegate in exag- gerated form: 1 and 2 Henry VI show Suffolk replacing Henry as lover... of the stage a father enters with a body he discovers to be his son. A series of antitheses highlight these horrors of civil division: the antithesis of father and son and the antithesis of expected reward transformed into sudden pain—‘is this our foeman’s face...

  20. The death of Henry II of France.

    PubMed

    Faria, M A

    1992-12-01

    On June 30, 1559, King Henry II of France (1519-1559), against the advice of his court ministers, participated in a fateful joust. The wooden lance of his younger opponent pierced the King's headgear, shattered into fragments, and penetrated his right orbit and temple. The King survived for 11 days following the mortal wound and was treated by two of the most distinguished physicians of the Renaissance: Ambroise Paré (1510-1590), the master surgeon, and Andreas Vesalius (1514-1564), the great anatomist. The unfortunate event, the nature of the injury, and the medical consultation between these eminent physicians should all be of interest to neurosurgeons. The historical consequences of this event are briefly reviewed. PMID:1432144

  1. Henry Norris Russell and the Expanding Universe

    E-print Network

    DeVorkin, David H

    2013-01-01

    Henry Norris Russell, one of the most influential American astronomers of the first half of the 20th Century, had a special place in his heart for the Lowell Observatory. Although privately critical of the founder for his pronouncements about life on Mars and the superiority of the Mars Hill observing site, he always supported the Observatory in public and professional circles. He staunchly supported Tombaugh's detection of a planet as leading from Lowell's prediction, and always promoted V. M. Slipher's spectroscopic investigations of planetary and stellar phenomena. But how did he react to Slipher's puzzling detection of the extreme radial velocities of spiral nebulae starting in 1912, and how did he regard the extension and interpretation of those observations by Hubble and others in following decades? Here we describe the arc of Russell's reactions, dating from Slipher's first detection, as an indicator of how mainstream stellar astronomers reacted to the concept of an expanding universe.

  2. Henry Norris Russell and the Expanding Universe

    NASA Astrophysics Data System (ADS)

    DeVorkin, D.

    2013-04-01

    Henry Norris Russell, one of the most influential American astronomers of the first half of the 20th Century, had a special place in his heart for the Lowell Observatory. Although privately critical of the founder for his pronouncements about life on Mars and the superiority of the Mars Hill observing site, he always supported the Observatory in public and professional circles. He staunchly supported Tombaugh's detection of a planet as leading from Lowell's prediction, and always promoted V. M. Slipher's spectroscopic investigations of planetary and stellar phenomena. But how did he react to Slipher's puzzling detection of the extreme radial velocities of spiral nebulae starting in 1912, and how did he regard the extension and interpretation of those observations by Hubble and others in following decades? Here we describe the arc of Russell's reactions, dating from Slipher's first detection, as an indicator of how mainstream stellar astronomers reacted to the concept of an expanding universe.

  3. Obituary: Henry Albers (1925-2009)

    NASA Astrophysics Data System (ADS)

    Chromey, Fred

    2011-12-01

    Henry Albers, professor of astronomy at Vassar College for over thirty years, died March 29, 2009, in Fairhope, Alabama. For his work at Vassar, where he held the Maria Mitchell Chair, Albers received the first Maria Mitchell Women in Science Award for his inspiration of women astronomers. He said "In the final analysis it is the students who bring the joy into teaching." As a professional astronomer, Albers did observational work on Galactic structure in the southern Milky Way, and on the structure of the Magellanic Clouds. In retirement, Albers published Maria Mitchell - A Life in Journals and Letters, the firsthand account of America's first woman astronomer. Albers's research was on photographic near-infrared spectroscopy of red giant stars in the southern Milky Way, some proper motion studies, and on the structure of the Magellanic Clouds. A series of seven NSF grants supported his six trips to Chile to make spectroscopic observations, as well as his sabbatical collaborations at Minnesota, Leiden, and the Royal Observatory in Edinburgh. Henry Albers arrived at Vassar in 1958, to find an astronomy program that had been recently absorbed by the physics department, and that was suffering neglect after the retirement of Maud Makemson. For the next 31 years, with incredible energy -- he sometimes taught seven courses a year -- he built the astronomy program into one double in size (from one to two tenure lines), whose th century facilities have been replaced with a st century observatory. For a remarkable stretch of 20-some-years, Albers and physicist Bob Stearns, with considerable grace, alternated chairmanship of the joint department of physics and astronomy. Henry Albers was a devoted citizen of Vassar College and an enthusiastic participant in the process of faculty governance at that institution. He would have been the first to concede that his enthusiasm was sometimes excessive, and that his contributions at faculty meetings occasionally failed to move the discussion forward. Before more than one meeting, he was known to make a note to himself on his copy of the agenda, which read, in large block letters: "shut up." Fortunately, Albers was seldom able to repress his concern for the College or his dedication to its improvement. He served on all major committees and most minor ones as well. For example, he chaired a committee that eventually got telephones in faculty offices, another that lobbied for establishment of an academic computing center, and another that constructed Vassar's system of post-tenure review of senior faculty. It was Henry Albers who introduced the motion on the floor of the faculty, which passed by a vote of 100 to 2, moving that Vassar College accept coeducation. Albers was a caring mentor and although fundamentally compassionate, had a somewhat prankish sense of humor - unfailingly directed at the most pompous targets in sight. Although deeply dedicated to the College, Albers had an admirable ability to disengage from his life at Vassar. He regularly spent college breaks as the resident astronomer on cruise ships. Every May, he would celebrate his last class by sharing a jug of wine in the faculty commons with his regular lunchtime group. After retiring in 1989, he continued his hobbies of gardening, painting, and choral singing, but also immediately began work as a math and science volunteer in the local public schools on Cape Cod. He completed his final scholarly project, his edition of the Letters and Journals of Maria Mitchell, in 2002.

  4. Stationary axially symmetric solutions in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Kirezli, P?nar; Delice, Özgür

    2015-11-01

    Stationary, axially symmetric Brans-Dicke-Maxwell solutions are reexamined in the framework of the Brans-Dicke (BD) theory. We see that, employing a particular parametrization of the standard axially symmetric metric simplifies the procedure of obtaining the Ernst equations for axially symmetric electrovacuum spacetimes for this theory. This analysis also permits us to construct a two parameter extension in both Jordan and Einstein frames of an old solution generating technique frequently used to construct axially symmetric solutions for BD theory from a seed solution of general relativity. As applications of this technique, several known and new solutions are constructed including a general axially symmetric BD-Maxwell solution of Plebanski-Demianski with vanishing cosmological constant, i.e., the Kinnersley solution and general magnetized Kerr-Newman-type solutions. Some physical properties and the circular motion of test particles for a particular subclass of Kinnersley solution, i.e., a Kerr-Newman-NUT-type solution for BD theory, are also investigated in some detail.

  5. Frequency comparison of optical lattice clocks beyond the Dick limit

    NASA Astrophysics Data System (ADS)

    Takamoto, Masao; Takano, Tetsushi; Katori, Hidetoshi

    2011-05-01

    The supreme accuracy of atomic clocks relies on the universality of atomic transition frequencies. The stability of a clock, meanwhile, measures how quickly the clock's statistical uncertainties are reduced. The ultimate measure of stability is provided by the quantum projection noise, which improves as 1/?N by measuring N uncorrelated atoms. Quantum projection noise limited stabilities have been demonstrated in caesium clocks and in single-ion optical clocks, where the quantum noise overwhelms the Dick effect attributed to local oscillator noise. Here, we demonstrate a synchronous frequency comparison of two optical lattice clocks using 87Sr and 88Sr atoms, respectively, for which the Allan standard deviation reached 1 × 10-17 in an averaging time of 1,600 s by cancelling out the Dick effect to approach the quantum projection noise limit. The scheme demonstrates the advantage of using a large number (N ~ 1,000) of atoms in optical clocks and paves the way to investigating the inherent uncertainties of clocks and relativistic geodesy on a timescale of tens of minutes.

  6. On Stationary Axially Symmetric Solutions in Brans-Dicke Theory

    E-print Network

    P?nar Kirezli; Özgür Delice

    2015-11-26

    Stationary, axially symmetric Brans-Dicke-Maxwell solutions are reexamined in the framework of the Brans-Dicke (BD) theory. We see that, employing a particular parametrization of the standard axially symmetric metric simplifies the procedure of obtaining the Ernst equations for axially symmetric electrovacuum space-times for this theory. This analysis also permits us to construct a two parameter extension in both Jordan and Einstein frames of an old solution generating technique frequently used to construct axially symmetric solutions for BD theory from a seed solution of general relativity. As applications of this technique, several known and new solutions are constructed including a general axially symmetric BD-Maxwell solution of Plebanski-Demianski with vanishing cosmological constant, i.e. the Kinnersley solution and general magnetized Kerr-Newman--type solutions. Some physical properties and the circular motion of test particles for a particular subclass of Kinnersley solution, i.e., a Kerr-Newman-NUT--type solution for BD theory, are also investigated in some detail.

  7. Dynamical complexity of the Brans-Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Hrycyna, Orest; Szyd?owski, Marek

    2013-12-01

    The dynamics of the Brans-Dicke theory with a quadratic scalar field potential function and barotropic matter is investigated. The dynamical system methods are used to reveal complexity of dynamical evolution in homogeneous and isotropic cosmological models. The structure of phase space crucially depends on the parameter of the theory ?BD as well as barotropic matter index wm. In our analysis these parameters are treated as bifurcation parameters. We found sets of values of these parameters which lead to generic evolutional scenarios. We show that in isotropic and homogeneous models in the Brans-Dicke theory with a quadratic potential function the de Sitter state appears naturally. Stability conditions of this state are fully investigated. It is shown that these models can explain accelerated expansion of the Universe without the assumption of the substantial form of dark matter and dark energy. The Poincare construction of compactified phase space with a circle at infinity is used to show that phase space trajectories in a physical region can be equipped with a structure of a vector field on nontrivial topological closed space. For ?BD < -3/2 we show new types of early and late time evolution leading from the anti-de Sitter to the de Sitter state through an asymmetric bounce. In the theory without a ghost we find bouncing solutions and the coexistence of the bounces and the singularity. Following the Peixoto theorem some conclusions about structural stability are drawn.

  8. Dynamical complexity of the Brans-Dicke cosmology

    SciTech Connect

    Hrycyna, Orest; Szyd?owski, Marek E-mail: marek.szydlowski@uj.edu.pl

    2013-12-01

    The dynamics of the Brans-Dicke theory with a quadratic scalar field potential function and barotropic matter is investigated. The dynamical system methods are used to reveal complexity of dynamical evolution in homogeneous and isotropic cosmological models. The structure of phase space crucially depends on the parameter of the theory ?{sub BD} as well as barotropic matter index w{sub m}. In our analysis these parameters are treated as bifurcation parameters. We found sets of values of these parameters which lead to generic evolutional scenarios. We show that in isotropic and homogeneous models in the Brans-Dicke theory with a quadratic potential function the de Sitter state appears naturally. Stability conditions of this state are fully investigated. It is shown that these models can explain accelerated expansion of the Universe without the assumption of the substantial form of dark matter and dark energy. The Poincare construction of compactified phase space with a circle at infinity is used to show that phase space trajectories in a physical region can be equipped with a structure of a vector field on nontrivial topological closed space. For ?{sub BD} < ?3/2 we show new types of early and late time evolution leading from the anti-de Sitter to the de Sitter state through an asymmetric bounce. In the theory without a ghost we find bouncing solutions and the coexistence of the bounces and the singularity. Following the Peixoto theorem some conclusions about structural stability are drawn.

  9. Biosorption of cationic basic dye and cadmium by the novel biosorbent Bacillus catenulatus JB-022 strain.

    PubMed

    Kim, Su Young; Jin, Mi Ra; Chung, Chang Ho; Yun, Yeoung-Sang; Jahng, Kwang Yeop; Yu, Kang-Yeol

    2015-04-01

    Biosorption of heavy metals and dyes is a promising technology that involves the removal of toxic metals from industrial wastes. The present study aims to screen the bacterial strains isolated from soils and polluted pond for their potential biosorption of both cationic dye and cadmium. Bacillus catenulatus JB-022 strain removed 58% and 66% of cationic basic blue 3 (BB3) and cadmium (Cd(II)) at the respective concentrations of 2000 mg/L and 150 mg/L. The biosorption equilibrium data were well fitted by the Langmuir adsorption isotherm, and the kinetic studies indicated that the biosorption followed the pseudo-second-order model. The biosorption kinetics showed that the equilibrium was reached within 10 min and 5 min for BB3 and Cd(II), respectively. According to the Langmuir model, the maximum uptakes of BB3 and Cd(II) by the JB-022 biomass were estimated to be 139.74 and 64.28 mg/g, respectively. To confirm the surface morphology and functional groups, field emission scanning electron microscope, energy-dispersive X-ray spectrometer, X-ray diffraction, and Fourier transform infrared spectroscopy analyses were carried out, and the results revealed that the biomass of JB-022 has carboxyl and phosphonate groups as potential surface functional groups capable of binding to cationic pollutants. In conclusion, B. catenulatus JB-022 is proposed as an excellent biosorbent with potentially important applications in removal of cationic pollutants from wastewaters. PMID:25454694

  10. A GIS-based Hydraulic Bulking Factor Map for New Mexico Gallegos, J.B.1

    E-print Network

    Cal, Mark P.

    1 A GIS-based Hydraulic Bulking Factor Map for New Mexico Gallegos, J.B.1 ; Richardson, C design, the bulking factor provides for an increased hydraulic capacity for culvert sizing under sediment of hydraulic structures (bridge or culvert) that intersect a perennial or ephemeral waterway requires

  11. KLA-Tencor is Hiring! Position: Manufacturing Systems Engineer (JB-193)

    E-print Network

    Rimon, Elon

    in Engineering / Biomedicine / Physics / Optics. · At least 4 years' experience in a multi-discipline system as an engineer / system interfaces and integration processes - must. · Work experience with optical modulesKLA-Tencor is Hiring! Position: Manufacturing Systems Engineer (JB-193) Job Requirements: · BSC

  12. Paenibacillus polymyxa JB05-01-1 and its perspectives for food conservation and medical applications.

    PubMed

    Naghmouchi, Karim; Paterson, Lyn; Forster, Bob; McAllister, Tim; Ohene-Adjei, Sam; Drider, Djamel; Teather, Ron; Baah, John

    2011-03-01

    The aim of this study was to isolate a novel bacterial strain with strong and broad spectrum antibacterial activity from a livestock feed prebiotic supplement. A novel strain, termed Paenibacillus polymyxa JB05-01-1, was isolated using traditional microbiological methods and identified on the basis of its phenotypic and biochemical properties as well as its 16S rRNA gene sequence. This strain was able to inhibit growth of gram-negative bacteria including Escherichia coli RR1, Pseudomonas fluorescens R73, Pantoea agglomerans BC1, Butyrivibrio fibrisolvens OR85, and Fibrobacter succinogenes. The above antagonism against the aforementioned bacteria was attributed to production of an antimicrobial substance(s) termed "JB05-01-1." Its production was optimal during the stationary phase. JB05-01-1 has a molecular weight of 2.5 KDa, its mode of action is bactericidal, and the divalent cations, Ca(2+) and Mn(2+), reduced its lethality. The antibacterial activity was heat-stable and was effective at a pH range of 2-9. Enzymes like trypsin, ?-chymotrypsin, and proteinase K have abolished the antibacterial activity of JB05-01-1 indicating a proteinaceous motif. This type of naturally occurring bacteria and inhibitory substance(s) could represent an additional value in livestock feed supplements. The natural presence of antibacterial activity indicates an opportunity to decrease the addition of antibiotics. PMID:21132276

  13. Tablet PCs in Engineering Mathematics Courses at the J.B. Speed School of Engineering

    ERIC Educational Resources Information Center

    Hieb, Jeffrey L.; Ralston, Patricia A. S.

    2010-01-01

    In fall 2007, J.B. Speed School of Engineering at the University of Louisville joined the ranks of universities requiring the purchase of Tablet PCs for all new entering students. This article presents a description of how the Department of Engineering Fundamentals incorporated Tablet PCs into their instruction, a review of the literature…

  14. Draft genome sequences of Streptococcus bovis strains ATCC 33317 and JB1

    Technology Transfer Automated Retrieval System (TEKTRAN)

    We report the draft genome sequences of Streptococcus bovis type strain ATTC 33317 (CVM42251) isolated from cow dung and strain JB1 (CVM42252) isolated from a cow rumen in 1977. Strains were subjected to Next Generation sequencing and the genome sizes are approximately 2 MB and 2.2 MB, respectively....

  15. The Local Interstellar Ultraviolet Radiation Field Richard Conn Henry

    E-print Network

    The Local Interstellar Ultraviolet Radiation Field Richard Conn Henry Maryland Space Grant interstellar ultraviolet radiation field, under various assumptions concerning the albedo a of the interstellar that ultraviolet radiation is capable of profoundly affecting the chemistry of the interstellar medium

  16. 1. Historic American Buildings Survey Photographed by Henry F. Withey ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey Photographed by Henry F. Withey September, 1936 SOUTH AND WEST FRONT. HOUSE #2 - Guadalupe Rancho Adobes, Adobe No. 2, 120 Third Avenue, Guadalupe, Santa Barbara County, CA

  17. 2. Historic American Buildings Survey Photographed by Henry F. Withey, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Historic American Buildings Survey Photographed by Henry F. Withey, September, 1936 HALL ENTRANCE ON EAST FRONT. HOUSE #1 - Guadalupe Rancho Adobes, Adobe No. 1, 114 Third Avenue, Guadalupe, Santa Barbara County, CA

  18. 2. Historic American Buildings Survey Photographed by Henry F. Withey, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Historic American Buildings Survey Photographed by Henry F. Withey, September 1936 SOUTH AND EAST FRONT. HOUSE #2 - Guadalupe Rancho Adobes, Adobe No. 2, 120 Third Avenue, Guadalupe, Santa Barbara County, CA

  19. 1. Historic American Buildings Survey Photographed by Henry F. Withey ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    1. Historic American Buildings Survey Photographed by Henry F. Withey September, 1936 STREET FRONT, SOUTH HOUSE #1 - Guadalupe Rancho Adobes, Adobe No. 1, 114 Third Avenue, Guadalupe, Santa Barbara County, CA

  20. 3. Historic American Buildings Survey Photographed by Henry F. Withey, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Historic American Buildings Survey Photographed by Henry F. Withey, September, 1936 HALL ENTRANCE, SOUTH FRONT HOUSE #2 - Guadalupe Rancho Adobes, Adobe No. 2, 120 Third Avenue, Guadalupe, Santa Barbara County, CA

  1. Multi-physics and particle methods Georges-Henri Cottet

    E-print Network

    Cottet, Georges-Henri

    1296 Multi-physics and particle methods Georges-Henri Cottet LMC-IMAG Université Joseph Fourier displacement. x and are respectively the Euler and Lagrange coordinates and (t) is the moving interface

  2. Rethinking Things in Henry James's The Spoils of Poynton 

    E-print Network

    Nozaki, Naoyuki

    2012-07-16

    The main objectives of this thesis are to examine the relations between people and things in American novelist Henry James's 1897 novel The Spoils of Poynton, and thus to deepen our understanding of James's engagement with material culture. Critics...

  3. 23. Henry Whitehead place in Cades Cove looking ESE. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    23. Henry Whitehead place in Cades Cove looking ESE. - Great Smoky Mountains National Park Roads & Bridges, Cades Cove Road & Laurel Creek Road, From Townsend Wye to Cades Cove, Gatlinburg, Sevier County, TN

  4. Liberty Mutual Insurance Lisa Henry, Liberty Mutual Insurance

    E-print Network

    Cai, Jin-Yi

    Liberty Mutual Insurance Lisa Henry, Liberty Mutual Insurance Behavior Based Interviewing #12;Liberty Mutual Insurance Liberty Mutual Insurance "...helping people live safer, more secure lives by the National Association of Insurance Commissioners. #12;Liberty Mutual Insurance Information Technology: More

  5. 24. Historic American Buildings Survey Photographed by Henry F. Withey, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    24. Historic American Buildings Survey Photographed by Henry F. Withey, November, 1936 RUINS OF GATEWAY TO OLD LAUNDRY AND SWIMMING POOL - Mission San Luis Rey de Francia, Mission Road, Oceanside, San Diego County, CA

  6. 2. Historic American Buildings Survey Photographed by Henry F. Withey ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    2. Historic American Buildings Survey Photographed by Henry F. Withey March 1936 VIEW OF FOUNTAIN IN MISSION PARK, MISSION PROPERTY AT ONE TIME. - Mission San Fernando Rey de Espana, Fountains, Mission Boulevard, San Fernando, Los Angeles County, CA

  7. Modified Brans-Dicke theory of gravity from five-dimensional vacuum

    E-print Network

    Jose Edgar Madriz Aguilar; Carlos Romero; Adriano Barros

    2007-05-03

    We investigate, in the context of five-dimensional (5D) Brans-Dicke theory of gravity, the idea that macroscopic matter configurations can be generated from pure vacuum in five dimensions, an approach first proposed in the framework of general relativity. We show that the 5D Brans-Dicke vacuum equations when reduced to four dimensions lead to a modified version of Brans-Dicke theory in four dimensions (4D). As an application of the formalism, we obtain two five-dimensional extensions of four-dimensional O'Hanlon and Tupper vacuum solution and show that they lead two different cosmological scenarios in 4D.

  8. Experimental quantum networking protocols via four-qubit hyperentangled Dicke states.

    PubMed

    Chiuri, A; Greganti, C; Paternostro, M; Vallone, G; Mataloni, P

    2012-10-26

    We report the experimental demonstration of two quantum networking protocols, namely quantum 1?3 telecloning and open-destination teleportation, implemented using a four-qubit register whose state is encoded in a high-quality two-photon hyperentangled Dicke state. The state resource is characterized using criteria based on multipartite entanglement witnesses. We explore the characteristic entanglement-sharing structure of a Dicke state by implementing high-fidelity projections of the four-qubit resource onto lower-dimensional states. Our work demonstrates for the first time the usefulness of Dicke states for quantum information processing. PMID:23215188

  9. Phase transition in the periodically pulsed Dicke model

    NASA Astrophysics Data System (ADS)

    Dasgupta, Sayak; Bhattacharya, Utso; Dutta, Amit

    2015-05-01

    We study the effect of pulsed driving and kicked driving of the interaction term on the nonequilibrium phase transition in the Dicke model. Within the framework of Floquet theory, we observe the emergence of new nontrivial phases on impingement by such periodic pulses. Notably, our study reveals that a greater control over the dynamical quantum criticality is possible through the variation of multiple parameters related to the pulse, as opposed to a single parameter control in a monochromatic drive. Furthermore, the probability of the system remaining trapped in a metastable state during the observed first order transition from the superradiant to normal phase is found to be higher for small number of kicks (or pulses) in comparison to the sinusoidal perturbation.

  10. Non-equilibrium Dynamics of an Optomechanical Dicke Model

    NASA Astrophysics Data System (ADS)

    Kamanasish, Debnath; Aranya, B. Bhattacherjee

    2015-07-01

    Motivated by the experimental realization of Dicke model in optical cavities, we model an optomechanical system consisting of two-level BEC atoms with transverse pumping. We investigate the transition from normal and inverted state to the superradiant phase through a detailed study of the phase portraits of the system. The rich phase portraits generated by analytical arguments display two types of superradiant phases, regions of coexistence and some portion determining the persistent oscillations. We study the time evolution of the system from any phase and discuss the role of mirror frequency in reaching their attractors. Further, we add an external mechanical pump to the mirror which is capable of changing the mirror frequency through radiation pressure and study the impact of the pump on the phase portraits and the dynamics of the system. We find the external mirror frequency changing the phase portraits and even shifting the critical transition point, thereby predicting a system with controllable phase transition.

  11. Generalized ghost dark energy in Brans-Dicke theory

    E-print Network

    A. Sheykhi; E. Ebrahimi; Y. Yosefi

    2013-07-23

    It was argued that the vacuum energy of the Veneziano ghost field of QCD, in a time-dependent background, can be written in the general form, $H + O(H^2)$, where $H$ is the Hubble parameter. Based on this, a phenomenological dark energy model whose energy density is of the form $\\rho=\\alpha H+\\beta H^{2}$ was recently proposed to explain the dark energy dominated universe. In this paper, we investigate this generalized ghost dark energy model in the setup of Brans-Dicke cosmology. We study the cosmological implications of this model. In particular, we obtain the equation of state and the deceleration parameters and a differential equation governing the evolution of this dark energy model. It is shown that the equation of state parameter of the generalized ghost dark energy can cross the phantom line ($w_D=-1$) in some range of the parameters spaces.

  12. Wormholes and naked singularities in Brans-Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Tretyakova, D. A.; Latosh, B. N.; Alexeyev, S. O.

    2015-09-01

    We perform an analytical and numerical study of static spherically symmetric solutions in the context of the Brans-Dicke-like cosmological model by Elizalde et al (2004 Phys. Rev. D 70 043539) with an exponential potential. In this model the phantom regime arises without the appearance of any ghost degree of freedom due to the specific form of coupling. For certain parameter ranges the model contains a regular solution that we interpret as a wormhole in an otherwise de Sitter Universe. We put several bounds on the parameter values: ? \\lt 0,{? }2/| ? | \\lt {10}-5,22.7? {? }0? 25. The numerical solution could mimic the Schwarzschild one, so the original model is consistent with astrophysical and cosmological observational data. However, differences between our solution and the Schwarzschild one can be quite large, so black hole candidate observations could probably place further limits on the {? }0 value.

  13. Motional frequency shifts of trapped ions in the Lamb-Dicke regime

    SciTech Connect

    Lizuain, I.; Muga, J. G.; Eschner, J.

    2007-09-15

    First order Doppler effects are usually ignored in laser driven trapped ions when the recoil frequency is much smaller than the trapping frequency (Lamb-Dicke regime). This means that the central, carrier excitation band is supposed to be unaffected by vibronic transitions in which the vibrational number changes. While this is strictly true in the Lamb-Dicke limit (infinitely tight confinement), the vibronic transitions do play a role in the Lamb-Dicke regime. In this paper we quantify the asymptotic behavior of their effect with respect to the Lamb-Dicke parameter. In particular, we give analytical expressions for the frequency shift, 'pulling' or 'pushing', produced in the carrier absorption band by the vibronic transitions both for Rabi and Ramsey schemes. This shift is shown to be independent of the initial vibrational state.

  14. Motional frequency shifts of trapped ions in the Lamb-Dicke regime

    E-print Network

    I. Lizuain; J. G. Muga; J. Eschner

    2007-07-09

    First order Doppler effects are usually ignored in laser driven trapped ions when the recoil frequency is much smaller than the trapping frequency (Lamb-Dicke regime). This means that the central, carrier excitation band is supposed to be unaffected by vibronic transitions in which the vibrational number changes. While this is strictly true in the Lamb-Dicke limit (infinitely tight confinement), the vibronic transitions do play a role in the Lamb-Dicke regime. In this paper we quantify the asymptotic behaviour of their effect with respect to the Lamb-Dicke parameter. In particular, we give analytical expressions for the frequency shift, ``pulling'' or ``pushing'', produced in the carrier absorption band by the vibronic transitions both for Rabi and Ramsey schemes. This shift is shown to be independent of the initial vibrational state.

  15. Gravitating monopole and its black hole solution in Brans-Dicke Theory

    E-print Network

    Tamaki, T; Maeda, K I; Tamaki, Takashi; Torii, Takashi; Maeda, Kei-ichi

    1999-01-01

    We find a self-gravitating monopole and its black hole solution in Brans-Dicke theory. We mainly discuss the properties of these solutions in the Einstein frame and compare the solutions with those in general relativity.

  16. Henry Darcy in his own words

    NASA Astrophysics Data System (ADS)

    Bobeck, Patricia

    2006-09-01

    A recently published English translation of the Les Fontaines publiques de la ville de Dijon1 provides access to Henry Darcy's own words on the importance of water for public sanitation and on questions engineers face in building water supply systems. Written near the end of Darcy's life, the book is a compendium of the water knowledge he had gained over decades and his opinions on these topics reveal his personality. In the 1840s, Darcy built a water supply system to provide water to 120 street fountains for domestic purposes, street washing and firefighting. Surrounded by poverty, Darcy insisted on free water for the poor and on sharing the spring water with towns located along the aqueduct that brought it to Dijon. In the preface to the book, Darcy introduces his experiment on water flow through sand with the modest words “to my knowledge, no one has experimentally demonstrated the laws of water flow through sand.” This article provides a sampling of the book's insights into the personality of this remarkable man.

  17. Henry W. Riecken Jr. (1917-2012).

    PubMed

    Boruch, Robert F

    2013-01-01

    Presents an obituary for Henry (Hank) W. Riecken Jr. In 1950, Riecken received his doctorate from Harvard University, having studied in the Department of Social Relations, which enjoyed a well-known relationship with the Department of Psychology. A thought leader, and a follower and booster of interesting thoughts (more prescience), Riecken was the first director of the National Science Foundation's (NSF's) Office of Social Sciences (later called a division) in 1959. As vice president and then president of the Social Science Research Council (SSRC) from 1966 to 1971, Hank led the development of the first state-of-the-art monograph on randomized controlled trials in the United States. Riecken was a member of the first Director's Advisory Committee at the National Institutes of Health. He became a member of the National Academy of Sciences' Board on Medicine in 1969 (one of two social scientists) and, as a founding member, assisted in the challenging effort to create the Institute of Medicine (IOM) in 1971. Hank is survived by his children Gilson, Susan, and Anne. He talked about them often, gently, and proudly and clearly loved them. The current Riecken Foundation, whose mission aims at substantial enhancements to libraries in Guatemala, is a testimony to Riecken's beneficence and to the intellectually generous spirit of him and his family. PMID:23895610

  18. James Paget Henry--a retrospective.

    PubMed

    Meehan, J P; Meehan, W P

    1997-01-01

    James Paget Henry really began his productive research career at the outset of the second world war. His studies of acceleration and the anoxia of high altitude were supported by the development of then new techniques of measuring and recording critical physiologic parameters such as vascular pressures, respiratory functions and haemoglobin saturation. His inquisitive mind made productive use of the instruments that had to be made by skilled instrument makers working in university shops. Much of this instrumentation has now found its way into the clinical arena where it is now the main armamentarium of cardiac diagnostic and respiratory function laboratories. His work in the space program preceeded that of the Russians but did not get recognition until Sputnik awakened the world to the possibilities of space flight. His development of the concept of a cardiovascular basis for fluid volume control and the supportive investigative work undertaken constitute a milestone in the annals of experimental physiology. The chimpanzees used in Project Mercury were found to be hypertensive which was related to the method of capture used by the commercial suppliers. This lead Jim to study the effect of early experience on resting blood pressure, an effort that soon developed into provocative studies of the biological basis of the stress response. PMID:9401600

  19. Role of Brans-Dicke Theory with or without self-interacting potential in cosmic acceleration

    E-print Network

    Writambhara Chakraborty; Ujjal Debnath

    2008-07-11

    In this work we have studied the possibility of obtaining cosmic acceleration in Brans-Dicke theory with varying or constant $\\omega$ (Brans- Dicke parameter) and with or without self-interacting potential, the background fluid being barotropic fluid or Generalized Chaplygin Gas. Here we take the power law form of the scale factor and the scalar field. We show that accelerated expansion can also be achieved for high values of $\\omega$ for closed Universe.

  20. Applicability of Henry's Law to helium solubility in olivine

    NASA Astrophysics Data System (ADS)

    Jackson, C.; Parman, S. W.; Kelley, S. P.; Cooper, R. F.

    2013-12-01

    Applicability of Henry's Law to helium solubility in olivine We have experimentally determined helium solubility in San Carlos olivine across a range of helium partial pressures (PHe) with the goal of quantifying how noble gases behave during partial melting of peridotite. Helium solubility in olivine correlates linearly with PHe between 55 and 1680 bar. This linear relationship suggests Henry's Law is applicable to helium dissolution into olivine up to 1680 bar PHe, providing a basis for extrapolation of solubility relationships determined at high PHe to natural systems. This is the first demonstration of Henry's Law for helium dissolution into olivine. Averaging all the data of the PHe series yields a Henry's coefficient of 3.8(×3.1)×10-12 mol g-1 bar-1. However, the population of Henry's coefficients shows a positive skew (skewness = 1.17), i.e. the data are skewed to higher values. This skew is reflected in the large standard deviation of the population of Henry's coefficients. Averaging the median values from each experiment yields a lower Henry's coefficient and standard deviation: 3.2(× 2.3)×10-12 mol g-1 bar-1. Combining the presently determined helium Henry's coefficient for olivine with previous determinations of helium Henry's coefficients for basaltic melts (e.g. 1) yields a partition coefficient of ~10-4. This value is similar to previous determinations obtained at higher PHe (2). The applicability of Henry's Law here suggests helium is incorporated onto relatively abundant sites within olivine that are not saturated by 1680 bar PHe or ~5×10-9 mol g-1. Large radius vacancies, i.e. oxygen vacancies, are energetically favorable sites for noble gas dissolution (3). However, oxygen vacancies are not abundant enough in San Carlos olivine to account for this solubility (e.g. 4), suggesting the 3x10-12 mol g-1 bar-1 Henry's coefficient is associated with interstitial dissolution of helium. Helium was dissolved into olivine using an externally heated pressure vessel (Brown University). The starting materials were prepared by cutting gem-quality San Carlos olivine (~Fo90) into small blocks (~4×2×1 mm) using a diamond wafering blade saw and polishing with alumina slurries and colloidal silica. Analysis was completed by laser ablation-mass spectrometry using a 193 nm excimer laser and a MAP 215-50 specifically tuned for He (Open University, UK). Laser ablation pit depth varied from 2 to 40 ?m, and no correlation between pit depth and [He] is observed after accounting for variations PHe across the different experiments. This lack of correlation indicates a close approach to equilibrium was achieved over the experimental durations. Two analyses yielded spuriously high [He] (>3 std. dev. from the population mean, n = 85), and these analyses were not used to calculate Henry's coefficients. The two spuriously high analyses, in combination with the right skew of Henry's coefficients calculated from individual data points, suggests gem-quality San Carlos olivine contains volumes with anomalously high helium solubility. The nature of these volumes is currently under investigation. However, despite their presence, helium is still highly incompatible in olivine during partial melting. [1] Lux GCA 1987 [2] Heber et al. GCA 2007 [3] Shcheka & Keppler Nature 2012 [4] Walker et al. PEPI 2009

  1. Colistin A and colistin B among inhibitory substances of Paenibacillus polymyxa JB05-01-1.

    PubMed

    Naghmouchi, Karim; Hammami, Riadh; Fliss, Ismail; Teather, Ron; Baah, John; Drider, Djamel

    2012-05-01

    Recently, we isolated and reported the antagonism of Paenibacillus polymyxa JB05-01-1 (P. polymyxa JB05-01-1) against Gram-negative bacteria. Here, we provide more insights and attribute the abovementioned antagonism to the production of colistins A and B, which were purified by Amberlite column exchange, C18 column hydrophobicity, superdex 75 16/60 gel filtration chromatography connected to fast protein liquid chromatography and identified by MALDI TOF/TOF, and manual nanospray analysis. The amount of colistin A and colistin B recovered from 500 ml of culture supernatant was about 0.05 mg. The specific activity and the average recovery of the eluted substances were 5,120 AU/mg and 1.1%, respectively. The minimal inhibitory concentrations of the purified colistins against Escherichia coli O157:H7 and Pseudomonas fluorescens LRC R73 were 0.13 and 0.62 ?g/ml, respectively. PMID:22038095

  2. RUDIN-KEISLER POSETS OF COMPLETE BOOLEAN PETER JIPSEN, ALEXANDER PINUS, HENRY ROSE

    E-print Network

    Jipsen, Peter

    RUDIN-KEISLER POSETS OF COMPLETE BOOLEAN ALGEBRAS PETER JIPSEN, ALEXANDER PINUS, HENRY ROSE-01-00571. 1 #12;2 PETER JIPSEN, ALEXANDER PINUS, HENRY ROSE We wish to extend this ordering to complete (but

  3. 4. PHOTOGRAPHIC PORTRAIT OF HENRY OSSAWA TANNER Photocopy of pre1930 ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. PHOTOGRAPHIC PORTRAIT OF HENRY OSSAWA TANNER Photocopy of pre-1930 photograph, courtesy of Archives of American Art, Smithsonian Institution, Washington, D. C. - Henry O. Tanner House, 2908 West Diamond Street, Philadelphia, Philadelphia County, PA

  4. Published Ahead of Print 26 March 2010. 2010, 192(11):2936. DOI: 10.1128/JB.00060-10.J. Bacteriol.

    E-print Network

    Published Ahead of Print 26 March 2010. 2010, 192(11):2936. DOI: 10.1128/JB.00060-10.J. BacteriolGenome Sequence of http://jb.asm.org/content/192/11/2936 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/192/11/2936#ref-list-1 This article cites 9 articles, 6

  5. Dynamical manifestations of Hamiltonian monodromy J.B. Delos a,*, G. Dhont b

    E-print Network

    Zhilinskií, Boris

    physique, UMR 8101 du CNRS, Université du Littoral Côte d'Opale, 59140 Dunkerque, France a r t i c l e i n author. E-mail addresses: jbdelo@wm.edu (J.B. Delos), guillaume.dhont@univ-littoral.fr (G. Dhont), sadovski@univ-littoral.fr (D.A. Sadovskií), zhilin@univ-littoral.fr (B.I. Zhilinskií). Annals of Physics

  6. Metallic Nickel Nanoparticles May Exhibit Higher Carcinogenic Potential than Fine Particles in JB6 Cells

    PubMed Central

    Bowman, Linda; Zou, Baobo; Mao, Guochuan; Xu, Jin; Castranova, Vincent; Zhao, Jinshun; Ding, Min

    2014-01-01

    While numerous studies have described the pathogenic and carcinogenic effects of nickel compounds, little has been done on the biological effects of metallic nickel. Moreover, the carcinogenetic potential of metallic nickel nanoparticles is unknown. Activator protein-1 (AP-1) and nuclear factor-?B (NF-?B) have been shown to play pivotal roles in tumor initiation, promotion, and progression. Mutation of the p53 tumor suppressor gene is considered to be one of the steps leading to the neoplastic state. The present study examines effects of metallic nickel fine and nanoparticles on tumor promoter or suppressor gene expressions as well as on cell transformation in JB6 cells. Our results demonstrate that metallic nickel nanoparticles caused higher activation of AP-1 and NF-?B, and a greater decrease of p53 transcription activity than fine particles. Western blot indicates that metallic nickel nanoparticles induced a higher level of protein expressions for R-Ras, c-myc, C-Jun, p65, and p50 in a time-dependent manner. In addition, both metallic nickel nano- and fine particles increased anchorage-independent colony formation in JB6 P+ cells in the soft agar assay. These results imply that metallic nickel fine and nanoparticles are both carcinogenetic in vitro in JB6 cells. Moreover, metallic nickel nanoparticles may exhibit higher carcinogenic potential, which suggests that precautionary measures should be taken in the use of nickel nanoparticles or its compounds in nanomedicine. PMID:24691273

  7. Exhuming Henry VIII's Court: The Tudor Household on the Jacobean Stage

    E-print Network

    Moore, Gaywyn

    2011-12-31

    The Jacobean plays that perform Henry VIII and his court struggle with Henry's paradoxical image and his troubling legacy of discarded advisors, wives, and heirs. Sir Thomas More, Thomas Lord Cromwell, When You See Me, You Know Me, and King Henry...

  8. Henry Giroux on Democracy Unsettled: From Critical Pedagogy to the War on Youth--An Interview

    ERIC Educational Resources Information Center

    Peters, Michael A.

    2012-01-01

    This interview conducted with Henry Giroux begins by probing Henry's childhood, upbringing and undergraduate years to discover where his sense of social justice took hold. It also questions Henry about his working-class background and the major influences on his thought, including his relationships with Paulo Freire and Howard Zinn. The interview…

  9. Wanda Henry Scholarships in Photonics (293/2015) THE AUSTRALIAN NATIONAL UNIVERSITY

    E-print Network

    Rawlinson, Nick

    Wanda Henry Scholarships in Photonics (293/2015) THE AUSTRALIAN NATIONAL UNIVERSITY RESEARCH SCHOOL OF PHYSICS AND ENGINEERING COLLEGE of PHYSICAL and MATHEMATICAL SCIENCES WANDA HENRY SCHOLARSHIPS School") may award two scholarships to be known as the Wanda Henry Scholarship in Photonics ("the

  10. Concordance to the Poems of Henry Howard, Earl of Surrey

    E-print Network

    Wilson, Louise A.

    1926-05-17

    Henry Homrd, Earl of Surrey, m o probably born during the year 1517 at Kenninghall, a minor wixich belonged to his crandfather, Thooao Howard. Surrey claimed connection Tritli the court of England tiirough M s illustrious ancestors. In the fifteenth... of Henry VI I , Thanhs was imprisoned, but later coined the King's favor and was restored to position and giveii the hand of Lady Anne Planta^enet, daughter of Edward IV* Surrey's lin- eage was noble, but hi a home life was one of strife. The mother...

  11. Lillian Wald at Henry Street, 1893-1895.

    PubMed

    Silverstein, N G

    1985-01-01

    This article presents historical research into the origins of the Henry Street Settlement on the lower East Side of New York City. It is about Lillian D. Wald and her contributions. Wald used techniques and approaches to deal with problems that exist today: health care equity and financial support from public and private sources. Keys to her success include effective leadership, assertive management, and knowledge of the power structure. The Henry Street Settlement, from its humble origins, set precedents for innovations in public health nursing that have profoundly affected health care in the United States. PMID:3917642

  12. The spin-Dicke effect in OLED magnetoresistance

    NASA Astrophysics Data System (ADS)

    Waters, D. P.; Joshi, G.; Kavand, M.; Limes, M. E.; Malissa, H.; Burn, P. L.; Lupton, J. M.; Boehme, C.

    2015-11-01

    Pairs of charge-carrier spins in organic semiconductors constitute four-level systems that can be driven electromagnetically. Given appropriate conditions for ultrastrong coupling--weak local hyperfine fields Bhyp, large magnetic resonant driving fields B1 and low static fields B0 that define Zeeman splitting--the spin-Dicke effect, a collective transition of spin states, has been predicted. This parameter range is challenging to probe by electron paramagnetic resonance spectroscopy because thermal magnetic polarization is negligible. It is accessed through spin-dependent conductivity that is controlled by electron-hole pairs of singlet and triplet spin-permutation symmetry without the need of thermal spin polarization. Signatures of collective behaviour of carrier spins are revealed in the steady-state magnetoresistance of organic light-emitting diodes (OLEDs), rather than through radiative transitions. For intermediate B1, the a.c.-Zeeman effect appears. For large B1, a collective spin-ensemble state arises, inverting the current change under resonance and removing power broadening, thereby offering a unique window to ambient macroscopic quantum coherence.

  13. [A legend of tropical veterinary medicine: Dick Zwart].

    PubMed

    Dwinger, Ron; Uilenberg, Gerrit

    2014-01-01

    An overview is given of the achievements of Professor Dr. D. Zwart (1930-2005). Following a brief introduction dealing with his background, his first eleven years of working in tropical countries are reviewed. Initially he was employed as a government veterinarian in Dutch New Guinea, followed by five years as a scientist at the agricultural faculty in Kumasi, Ghana, where he completed his PhD on liver cirrhosis in local pigs. He was seconded by the Department of Tropical Veterinary Medicine at Utrecht University to work as a virologist in Vom, Nigeria. Once back in The Netherlands, he was selected to take over the position of head of the Department due to the unexpected death of Professor S. G. Wilson. He stayed for 20 years at Utrecht University and was for another nine years department head at the Agricultural University of Wageningen. He was an influential man during this long period as department head, not only for his students, but also in the international field. Four aspects of the achievements by Dick are highlighted in detail: as a scientist, as an educator, as a stimulating figure, and as a visionary. PMID:25029758

  14. f(R) Gravities à la Brans-Dicke

    E-print Network

    Tonguç Rador

    2007-07-10

    We extend f(R) theories via the addition of a fundamental scalar field. The approach is reminiscent of the dilaton field of string theory and the Brans-Dicke model. f(R) theories attracted much attention recently in view of their potential to explain the acceleration of the universe. Extending f(R) models to theories with scalars can be motivated from the low energy effective action of string theory. There, a fundamental scalar (the dilaton), has a non-minimal coupling to the Ricci scalar. Furthermore beyond tree level actions will contain terms having higher (or lower) powers of R compared to the canonical Einstein-Hilbert term. Theories with f(R) will contain an extra scalar degree on top of the ad-hoc dilaton and mixing of these two modes around a stable solution is a concern. In this work we show that no mixing condition mandates the form $V_{1}(\\phi)f(R)+V_{2}(\\phi)R^{2}$ for the action.

  15. Non-singular Brans-Dicke cosmology with cosmological constant

    E-print Network

    Tretyakova, Darya; Novikov, Igor; Alexeyev, Stanislav

    2011-01-01

    We consider Brans-Dicke cosmology with cosmological constant with negative w parameter and an arbitrary (in general non-vanishing) scale factor at the Big Bang. The field equations describe the flat universe, current observational values for Hubble constant H and deceleration parameter q play a role of initial conditions. In order to solve field equations we adopt the approach of Uehara and Kim (1982). They considered only positive values of w, hence our solution is a new one and has not been described in their paper. Our main result is that unlike the standard cosmology the scale factor may not vanish in it's evolution back in time. In other words our model displays a cosmological bounce and avoids the initial singularity. The formula for the scale factor, leading to the bounce, is only valid for the dust-filled universe and hence cannot be adequate for the hot stage in the early universe when the bounce happens. So, the results of this paper are only qualitative in nature and must be used to obtain initial ...

  16. Variational treatment of entanglement in the Dicke model

    NASA Astrophysics Data System (ADS)

    Bakemeier, L.; Alvermann, A.; Fehske, H.

    2015-10-01

    We introduce a variational ansatz for the Dicke model that extends mean-field theory through the inclusion of spin-oscillator correlations. The correlated variational state is obtained from the mean-field product state via a unitary transformation. The ansatz becomes correct in the limit of large oscillator frequency and in the limit of a large spin, for which it captures the leading quantum corrections to the classical limit exactly including the spin-oscillator entanglement entropy. We explain the origin of the unitary transformation before we show that the ansatz improves substantially upon mean-field theory, giving near exact results for the ground state energy and very good results for other observables. We then discuss why the ansatz still encounters problems in the transition regime at moderate spin lengths, where it fails to capture the precursors of the superradiant quantum phase transition faithfully. This observation illustrates the principal limits of semi-classical formulations, even after they are extended with correlations and entanglement.

  17. Engineering quantum pure states of a trapped cold ion beyond the Lamb-Dicke limit L. F. Wei,1,2

    E-print Network

    Nori, Franco

    Engineering quantum pure states of a trapped cold ion beyond the Lamb-Dicke limit L. F. Wei,1,2 Yu generate quantum pure states of a single trapped cold ion without performing the Lamb-Dicke approximation states. Unlike previous schemes operating in the Lamb-Dicke regime, the present one does well

  18. THE LOCAL INTERSTELLAR ULTRAVIOLET RADIATION FIELD Richard Conn Henry1

    E-print Network

    THE LOCAL INTERSTELLAR ULTRAVIOLET RADIATION FIELD Richard Conn Henry1 Center for Astrophysical interstellar ultraviolet radiation field, under various assumptions concerning the albedo a of the interstellar grains. (This ultraviolet radiation field is of particular interest because of the fact that ultraviolet

  19. Thomas Henry Huxley's developmental view of the cell.

    PubMed

    Richmond, Marsha L

    2002-01-01

    In 1853, the British physiologist Thomas Henry Huxley roundly criticized German cell theory. Historians have had difficulty explaining how such a 'progressive' biologist could have rejected cellular autonomy and the central role of the nucleus in cell life. The key to Huxley's thinking is provided by understanding his 'epigenetic' philosophy of biology. PMID:11823799

  20. Determination of Henry's law constant for elemental mercury.

    PubMed

    Andersson, Maria E; Gårdfeldt, Katarina; Wängberg, Ingvar; Strömberg, Dan

    2008-09-01

    The assessment of the global mercury cycle involves estimations of the evasion of mercury form oceanic waters. In such estimations Henry's law constant is often used. In this study the Henry's law constant for elemental mercury has been re-determined in MQ water and artificial sea water. Moreover, for the first time it has been determined for 1.5M sodium chloride (NaCl) solution which is of relevance for modeling of atmospheric waters at coastal locations. For all solutions, experiments has been conducted at five different temperatures between 278 and 308K, using a novel technique, for mercury, based on direct measurements of the portioning of mercury between the aqueous and gaseous phase. Elemental mercury was extracted from the water column and the logarithm of the mass of extracted mercury was plotted against time. A dimensionless Henry's law constant, defined as: [see text] was obtained from the slope of the curve. Almost no difference was observed in the values comparing the Milli-Q water and artificial sea water, however for the 1.5M NaCl solution a salting-out effect was seen, i.e. the solubility of mercury in the water phase decreased. The decreased solubility will generate an increase in the value of Henry's law constant. PMID:18653209

  1. The explosion problem in a flow Henri Berestycki

    E-print Network

    Novikov, Alexei

    The explosion problem in a flow Henri Berestycki Alexander Kiselev Alexei Novikov Lenya Ryzhik§ March 19, 2008 Abstract We consider the explosion problem in an incompressible flow introduced in [5]. We use a novel Lp - L estimate for elliptic advection-diffusion problems to show that the explosion

  2. Henry's law constants for dimethylsulfide in freshwater and seawater

    NASA Technical Reports Server (NTRS)

    Dacey, J. W. H.; Wakeham, S. G.; Howes, B. L.

    1984-01-01

    Distilled water and several waters of varying salinity were subjected, over a 0-32 C temperature range, to measurements for Henry's law constants for dimethylsulfide. Values for distilled water and seawater of the solubility parameters A and C are obtained which support the concept that the concentration of dimethylsulfide in the atmosphere is far from equilibrium with seawater.

  3. 4. Historic American Buildings Survey Photocopy, Henry Austin's Drawing c. ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    4. Historic American Buildings Survey Photocopy, Henry Austin's Drawing c. 1845 Restricted: Permission for use must be obtained in writing from Beinecke Rare Book and Manuscript Library Yale University, New Haven, Conn. - Grove Street Cemetery Entrance, 227 Grove Street, New Haven, New Haven County, CT

  4. 10. Historic American Buildings Survey Photocopy, Henry Austin's Drawing EAST ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    10. Historic American Buildings Survey Photocopy, Henry Austin's Drawing EAST SIDE ELEVATION Restricted: Permission for use must be obtained in writing from the Beinecke Rare Book and Manuscript Library Yale University, New Haven, Conn. - Willis Bristol House, 584 Chapel Street, New Haven, New Haven County, CT

  5. Henry M. Jackson School of International Studies middle east center

    E-print Network

    Van Volkenburgh, Elizabeth

    challenges do immigrant students from Muslim-majority countries face in the US classroom and school Students from Muslim-Majority Countries Succeed in the American Educational System MIDDLE EAST CENTER Henry from Muslim-Majority Countries Succeed in the American Educational System These topics, along with many

  6. Memory concepts Yadin Dudai, Henry L. Roediger Ill

    E-print Network

    Dudai, Yadin

    1 Memory concepts Yadin Dudai, Henry L. Roediger Ill and Endel Tulving A new science of memory that a direct confrontation of the issue at what we regard as the most funda- mental level of knowledge, but also what they are not. Concepts are: 1. Mental representations that encode sets of attributes

  7. DETERMINATION OF HENRY'S LAW CONSTANTS OF SELECTED PRIORITY POLLUTANTS

    EPA Science Inventory

    The Henry's law constants (H) for 41 selected priority pollutants were determined to characterize these pollutants and provide information on their fate as they pass through wastewater treatment systems. All experimental values presented for H are averages of two or more replicat...

  8. Sculptures in S3 Saul Schleimer and Henry Segerman

    E-print Network

    Schleimer, Saul

    Sculptures in S3 Saul Schleimer and Henry Segerman Abstract We describe the construction of a number of sculptures. Each is based on a geometric design native to the three- sphere: the unit sphere space. All of the sculptures are then fabricated by the 3D printing service Shapeways. 1 Introduction

  9. Sculptures in S3 Saul Schleimer Henry Segerman

    E-print Network

    Schleimer, Saul

    Sculptures in S3 Saul Schleimer Henry Segerman Mathematics Institute Department of Mathematics Australia s.schleimer@warwick.ac.uk segerman@unimelb.edu.au Abstract We construct a number of sculptures we transfer the design from the three-sphere to ordinary Euclidean space. All of the sculptures

  10. Henry David Thoreau and Martin Luther King, Jr. Lesson Plan.

    ERIC Educational Resources Information Center

    Powell, Brent

    1995-01-01

    Presents a five-lesson, high school instructional unit on the ideas and activities of Henry David Thoreau and Martin Luther King, Jr. Includes student objectives, step-by-step instructional procedures, and discussion questions. Provides quotations by Thoreau and King. (CFR)

  11. The Visual Language of Experts in Graphic Design Henry Lieberman

    E-print Network

    The Visual Language of Experts in Graphic Design Henry Lieberman Media Laboratory Massachusetts Institute of Technology Cambridge, Mass. USA lieber@media.mit.edu ABSTRACT Graphic designers and other is communicated between humans in graphic design. Nowhere is the process of design communication more critical

  12. SUPERMASSIVE BLACK HOLE BINARIES AS GALACTIC BLENDERS Henry E. Kandrup

    E-print Network

    Terzi, Bal?a

    elliptical galaxies. The presence of a binary comprised of black holes executing nearly periodic orbits leads to the possibility of a broad resonant coupling between the black holes and various stars in the galaxy. This canSUPERMASSIVE BLACK HOLE BINARIES AS GALACTIC BLENDERS Henry E. Kandrup Department of Astronomy

  13. Battling for Liberty: Tecumseh's and Patrick Henry's Language of Resistance.

    ERIC Educational Resources Information Center

    Gardner, Traci

    The reading program described in this lesson plan extends the study of Patrick Henry's "Give Me Liberty or Give Me Death" speech to demonstrate the ways Native Americans also resisted oppression through rhetoric. During five 50-minute lessons, students will: develop an awareness of both Native and non-Native movements to resist oppression and…

  14. Patrick Henry Community College Institutional Master Plan, 1987-1992.

    ERIC Educational Resources Information Center

    Williams, Jean; And Others

    Patrick Henry Community College's (PHCC's) 1987-1992 institutional master plan was developed to inform readers of the college's mission, goals, history, current status, and plans for the future. Section 1 presents a description of the college and projections for the future in terms of: (1) PHCC's contributions to the community, such as its…

  15. Patrick Henry Community College Master Plan, 1993-1998.

    ERIC Educational Resources Information Center

    Patrick Henry Community Coll., Martinsville, VA.

    This master plan for 1993-98 is Patrick Henry Community College's (PHCC's) long-range planning document, designed to guide the college through the 5-year period. Section I provides background information on the history of the college; community characteristics; population trends in Martinsville, Virginia, and the surrounding counties of Patrick,…

  16. America's Earliest Revolutionary Voice: Po-Pay--Not Patrick Henry.

    ERIC Educational Resources Information Center

    Owen, Gordon R.

    A full century before Patrick Henry's persuasive battle for the rights of oppressed people, a San Juan Pueblo Indian medicine man known only as Po-Pay was the masterful communicator and agitator who orchestrated the first American revolution to drive the Spanish back into Mexico. Seeking mineral wealth, cheap labor, and the maximum number of…

  17. Patrick Henry Community College Community Needs Assessment: Comprehensive Report.

    ERIC Educational Resources Information Center

    Needham, Roberta Lee

    An impact study/needs assessment of the Patrick Henry Community College (PHCC) service area was conducted as the informational base for PHCC's 3-year plan. Five groups were surveyed to gather demographic data and information on educational needs: 295 randomly selected citizens, 71 selected employers, 14 selected social service agency leaders, 40…

  18. Patrick Henry Community College Staff Needs Assessment: Comprehensive Report.

    ERIC Educational Resources Information Center

    Needham, Roberta Lee

    As part of a comprehensive community impact/needs assessment, Patrick Henry Community College (PHCC) conducted surveys of faculty, classified staff, and administrators. Questionnaires solicited information on respondent characteristics, PHCC's mission and goals, the purpose of postsecondary education, the adequacy of PHCC's services and programs,…

  19. An arithmetic Riemann-Roch theorem in higher Henri Gillet

    E-print Network

    S­oulé­, Christophe

    An arithmetic Riemann-Roch theorem in higher degrees Henri Gillet , Damian R¨ossler and C. Soul´e December 16, 2007 Abstract We prove an analogue in Arakelov geometry of the Grothendieck-Riemann- Roch theorem. Keywords: Arakelov Geometry, Grothendieck-Riemann-Roch theorem, analytic torsion form, arithmetic

  20. Data Mining Social Media for Public Health Applications Henry Kautz

    E-print Network

    Kautz, Henry

    be applied to study mental health dis- orders, such as depression, that have strong contagion pat- ternsData Mining Social Media for Public Health Applications Henry Kautz University of Rochester health at a population scale. Researchers have shown, for example, that Twitter postings can be used

  1. "Audacity or Precision": The Paradoxes of Henri Villat's Fluid Mechanics

    E-print Network

    Aubin, David

    1 "Audacity or Precision": The Paradoxes of Henri Villat's Fluid Mechanics in Interwar France David researches on fluid mechanics. Most of his original work was done before the First Word War; it was highly on, he held the fluid mechanics chair established by the Air Ministry at the Sorbonne in Paris

  2. REDUNDANCY ELIMINATION IN MOTIF DISCOVERY HENRY LEUNG AND FRINCIS CHIN

    E-print Network

    Chin, Francis Y.L.

    motif discovery algorithm MEME. 1 Introduction A gene is a segment of DNA that is the blueprint1 REDUNDANCY ELIMINATION IN MOTIF DISCOVERY ALGORITHMS HENRY LEUNG AND FRINCIS CHIN Department that a standard EM-based motif discovery algorithm enhanced with RME has a better performance than the popular

  3. 3. Historic American Buildings Survey Photographed by Henry F. Withey ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 RUINS OF INDUSTRIAL SHOPS, TAKEN FROM NORTH WEST CORNER. - Mission San Juan Capistrano, Industrial Shops, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  4. 5. Historic American Buildings Survey Photographed by Henry F. Withey ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    5. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 EAST WALL OF INDUSTRIAL SHOPS (LOOKING NORTH) - Mission San Juan Capistrano, Industrial Shops, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  5. Formalizing Anonymous Blacklisting Systems1 Ryan Henry and Ian Goldberg

    E-print Network

    Goldberg, Ian

    Formalizing Anonymous Blacklisting Systems1 Ryan Henry and Ian Goldberg Cheriton School of Computer Science University of Waterloo Waterloo, ON, Canada N2L 3G1 {rhenry,iang}@cs.uwaterloo.ca Abstract--Anonymous to communicate privately over the Internet. However, in doing so, anonymous communications networks introduce

  6. The Transformative Intellectual: An Examination of Henry Giroux's Ethics

    ERIC Educational Resources Information Center

    Kashani, Tony

    2012-01-01

    This article explores Henry Giroux's contributions to critical pedagogy. The author demonstrates how Giroux, as a public intellectual, has found his Ethics in the right place. The author further argues that Giroux's Ethics of virtue are present not only in the public person but also in his transformative writing.

  7. 77 FR 35373 - Duke Energy Dicks Creek, LLC; Supplemental Notice That Initial Market-Based Rate Filing Includes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-13

    ...Regulatory Commission [Docket No. ER12-1951-000] Duke Energy Dicks Creek, LLC; Supplemental Notice That Initial Market-Based...supplemental notice in the above-referenced proceeding of Duke Energy Dicks Creek, LLC's application for market-based rate...

  8. Dicke superradiance as nondestructive probe for the state of atoms in optical lattices

    E-print Network

    Nicolai ten Brinke; Ralf Schützhold

    2015-11-20

    We present a proposal for a probing scheme utilizing Dicke superradiance to obtain information about ultracold atoms in optical lattices. A probe photon is absorbed collectively by an ensemble of lattice atoms generating a Dicke state. The lattice dynamics (e.g., tunneling) affects the coherence properties of that Dicke state and thus alters the superradiant emission characteristics -- which in turn provides insight into the lattice (dynamics). Comparing the Bose-Hubbard and the Fermi-Hubbard model, we find similar superradiance in the strongly interacting Mott insulator regime, but crucial differences in the weakly interacting (superfluid or metallic) phase. Furthermore, we study the possibility to detect whether a quantum phase transition between the two regimes can be considered adiabatic or a quantum quench.

  9. Modified Brans-Dicke gravitational theory with nonzero divergence of the energy-momentum tensor

    NASA Technical Reports Server (NTRS)

    Smalley, L. L.

    1974-01-01

    The Brans-Dicke theory of gravitation is modified by assuming that the divergence of the energy-momentum tensor is proportional to the covariant derivative of the scalar curvature. No ad hoc additions to the usual Brans-Dicke field equations are required as in Rastall's modification of the Einstein theory or as in the steady-state theories, of which this is a natural possibility. Three parameters emerge from the theory - namely, the unnormalized gravitational constant, the usual Brans-Dicke parameter, and the proportionality constant. In the post-Newtonian approximation, these parameters can be fixed by experiment. However, there exists a certain choice of the parameters for which the theory reduces to an Einstein theory with constant scalar curvature.

  10. Modified Brans-Dicke theory with space-time anisotropic parameters

    SciTech Connect

    Moon, Taeyoon; Oh, Phillial E-mail: ploh@skku.edu

    2014-03-01

    We consider the ADM formalism of the Brans-Dicke theory and propose a space-time anisotropic extension of the theory by introducing five free parameters. We find that the resulting theory reveals many interesting aspects which are not present in the original BD theory. We first discuss the ghost instability and strong coupling problems which are present in the gravity theory without the full diffeomorphism symmetry and show that they can be avoided in a region of the parameter space. We also perform the post-Newtonian approximation and show that the constraint of the Brans-Dicke parameter ?{sub BD} being large to be consistent with the solar system observations could be evaded in the extended theory. We also discuss that accelerating Universe can be achieved without the need of the potential for the Brans-Dicke scalar.

  11. Holographic dark energy in Brans-Dicke cosmology with chameleon scalar field

    E-print Network

    M. R. Setare; Mubasher Jamil

    2010-06-02

    We study a cosmological implication of holographic dark energy in the Brans-Dicke gravity. We employ the holographic model of dark energy to obtain the equation of state for the holographic energy density in non-flat (closed) universe enclosed by the event horizon measured from the sphere of horizon named $L$. Our analysis shows that one can obtain the phantom crossing scenario if the model parameter $\\alpha$ (of order unity) is tuned accordingly. Moreover, this behavior is achieved by treating the Brans-Dicke scalar field as a Chameleon scalar field and taking a non-minimal coupling of the scalar field with matter. Hence one can generate phantom-like equation of state from a holographic dark energy model in non-flat universe in the Brans-Dicke cosmology framework.

  12. Thermodynamical Behaviors of Nonflat Brans-Dicke Gravity with Interacting New Agegraphic Dark Energy

    NASA Astrophysics Data System (ADS)

    Wu, Ya-Bo; Zhang, Xue; Lu, Jian-Bo; Zhao, Yue-Yue; Lu, Jun-Wang; Yu, Fang

    2014-12-01

    The dynamical behaviors of Brans-Dicke gravity with the interacting new agegraphic dark energy (NADE) model are studied in this paper. First of all, by considering the dark energy density ?de = 3n2??-2, the evolutions of the equation of state and the deceleration parameter can be described in the framework of Friedmann-Robertson-Walker universe. Moreover, the field equations of the Brans-Dicke gravity can be cast to the form of the first law of thermodynamics with the so-called entropy production term d˜ {S}. Furthermore, the generalized second law of thermodynamics can be given in nonflat Brans-Dicke gravity with the interacting NADE enclosed by the dynamical apparent horizon with Hawking temperature. Finally, when the interaction between NADE and dark matter is considered as a fluctuation around the thermal equilibrium, it can be written to a form of logarithmic correction, and the expression of the interaction term can be obtained.

  13. Schmerr, N., and E. Garnero (2006), Investigation of upper mantle discontinuity structure beneath the central Pacific using SS precursors, J. Geophys. Res., 111, B08305, doi:10.1029/2005JB004197.

    E-print Network

    Garnero, Ed

    2006-01-01

    the central Pacific using SS precursors, J. Geophys. Res., 111, B08305, doi:10.1029/2005JB004197. Auxiliary Material for Paper 2005JB004197 Investigation of upper mantle discontinuity structure beneath the central.1029/2005JB004197. Introduction Figures S1-S9 show topologies for stacking parameters not explored in Figure

  14. Modified spontaneous emission spectra of laser dye in inverse opal photonic crystals Henry P. Schriemer,* Henry M. van Driel,

    E-print Network

    Vos, Willem L.

    Modified spontaneous emission spectra of laser dye in inverse opal photonic crystals Henry P crystals made of inverse opals in titania (TiO2). We identify stop bands with large relative widths of 15 constants 15,16 . These so-called air-sphere crystals, or inverse opals, interact so strongly with light

  15. 2015/01/15http://reikisv.kj.yamagata-u.ac.jp/joureikun-web/basic/act/JB809/ActPrint/View.do 2015/01/15http://reikisv.kj.yamagata-u.ac.jp/joureikun-web/basic/act/JB809/ActPrint/View.do

    E-print Network

    Tomimatsu,, Hiroshi

    /6 2015/01/15http://reikisv.kj.yamagata-u.ac.jp/joureikun-web/basic/act/JB809/ActPrint/View.do #12;() 7 () 15 2/6 2015/01/15http://reikisv.kj.yamagata-u.ac.jp/joureikun-web/basic/act/JB809/Act 2 3 () 24 3/6 2015/01/15http://reikisv.kj.yamagata-u.ac.jp/joureikun-web/basic/act/JB809/Act

  16. Shear and Vorticity in an Accelerating Brans-Dicke Lambda-Universe with Torsion

    E-print Network

    Marcelo Samuel Berman

    2008-08-06

    We study accelerating Universes with power-law scale-factors. We include shear and vorticity, a cosmological "constant" term, and spin from torsion, as in Einstein-Cartan's theory when a scalar-field of Brans-Dicke type acts in the model. We find a "no-hair" result, for shear and vorticity; we also make contact with the alternative Machian picture of the Universe. Keywords: Cosmology; Einstein; Brans-Dicke; Cosmological term; Shear; Spin; Vorticity; Inflation; Einstein-Cartan; Torsion; Accelerating Universe

  17. Drude weight, cyclotron resonance, and the Dicke model of graphene cavity QED

    E-print Network

    Luca Chirolli; Marco Polini; Vittorio Giovannetti; Allan H. MacDonald

    2012-07-30

    The Dicke model of cavity quantum electrodynamics is approximately realized in condensed matter when the cyclotron transition of a two-dimensional electron gas is nearly resonant with a cavity photon mode. We point out that in the strong coupling limit the Dicke model of cavity cyclotron resonance must be supplemented by a term that is quadratic in the cavity photon field and suppresses the model's transition to a super-radiant state. We develop the theory of graphene cavity cyclotron resonance and show that the quadratic term, which is absent in graphene's low-energy Dirac model Hamiltonian, is in this case dynamically generated by virtual inter-band transitions.

  18. Vacuum Energy Accretion and Primordial Black Holes in Brans-Dicke theory

    E-print Network

    D. Dwivedee; B. Nayak; L. P. Singh

    2013-10-10

    In this paper, we investigate the evolution of primordial black hole (PBH) in vacuum-dominated era within Brans-Dicke cosmology. We consider the accretion of vacuum energy by PBHs and found that vacuum energy accretion efficiency should be less than 0.61. We also study the evaporation of PBHs where we conclude that larger the value of accretion efficiency longer live the PBHs. We also find that PBHs evaporate at a quicker rate in Brans-Dicke theory compared with Standard Cosmology.

  19. {gamma} parameter and Solar System constraint in chameleon-Brans-Dicke theory

    SciTech Connect

    Saaidi, Kh.; Mohammadi, A.; Sheikhahmadi, H.

    2011-05-15

    The post Newtonian parameter is considered in the chameleon-Brans-Dicke model. In the first step, the general form of this parameter and also effective gravitational constant is obtained. An arbitrary function for f({Phi}), which indicates the coupling between matter and scalar field, is introduced to investigate validity of solar system constraint. It is shown that the chameleon-Brans-Dicke model can satisfy the solar system constraint and gives us an {omega} parameter of order 10{sup 4}, which is in comparable to the constraint which has been indicated in [19].

  20. Development of a New Shielding Model for JB-Line Dose Rate Calculations

    SciTech Connect

    Buckner, M.R.

    2001-08-09

    This report describes the shielding model development for the JB-Line Upgrade project. The product of this effort is a simple-to-use but accurate method of estimating the personnel dose expected for various operating conditions on the line. The current techniques for shielding calculations use transport codes such as ANISN which, while accurate for geometries which can be accurately approximated as one dimensional slabs, cylinders or spheres, fall short in calculating configurations in which two-or three-dimensional effects (e.g., streaming) play a role in the dose received by workers.

  1. Obituary: Roy Henry Garstang (1925-2009)

    NASA Astrophysics Data System (ADS)

    Malville, J.

    2011-12-01

    Roy Henry Garstang 84 passed away on November 1, 2009 in Boulder Colorado. He was born in Southport, England in September of 1925 to Percy Brocklehurst and Eunice (Gledhill) Garstang. He won a scholarship to Caius College in Cambridge University. Because it was wartime, he could spend only two years at his studies. However, he managed to complete three years of required work during that time, and then spent 1945-46 as a Junior Scientific Officer at the Royal Aircraft Establishment at Farnborough. He received his BA in 1946 from Cambridge, his MA in 1950, and his PhD in Mathematics in 1954, with a thesis: "Atomic Transitions in Astrophysics," working under D. R. Hartree. He also received a ScD from Cambridge in Physics and Chemistry in 1983. He married Ann in August 1959. She and two daughters, Jennifer and Susan, survive him. While still pursuing his PhD, Roy Garstang served as a Research Associate at the Yerkes Observatory, from 1951-1952, working under Subrahmanyan Chandrasekhar. During that time he continued with his own calculations of atomic structure and transition probabilities, although these were not part of Chandra's research interests. After earning his PhD, he went to teach at the University of London, where he also served as the Assistant Director of the University of London Observatory (1959-1964). He was editor of "The Observatory" Magazine form 1953-1960. The continuing theme of this research was to help meet the needs of astrophysicists for atomic data. In 1964, he left England for the United States, where he joined the faculty at the University of Colorado, Boulder, where he would remain for the rest of his professional career. It was entirely fitting, considering his interest in performing calculations of interest to astrophysicists, that soon after arriving in Boulder he was appointed Chairman of JILA - Joint Institute for Laboratory Astrophysics (1966-1967). He was Director of the Division of Physics and AstroGeophysics (1979-80), acting Director of the Fiske Planetarium (1980-81), Chair of the Faculty Assembly (1988-1989) and recipient of the Faculty Assembly Excellence in Service Award in 1990. During his career Garstang was active in a number of professional organizations, including the British Astronomical Association (two-term Vice President) and Sigma Xi for which he was the Secretary of the University of Colorado for 20 years. He was a Fellow of the American Association for the Advancement of Science, the American Physical Society the American Physical Society, the Optical Society of America, the Royal Astronomical Society, the Institute of Physics (British), the Royal Statistical Society, and the Cambridge Philosophical Society. He published more than 150 articles in scientific journals. Roy Garstang was the consummate resource for atomic calculations needed by the astrophysical community. His first scientific paper published when he was a graduate student in 1950 was "Some line strengths for ionized neon" (Monthly Notices of the Royal Astronomical Society 110: 612-614) and some 55 papers later, in 1981 he published calculations on neutral technetium "Oscillator strengths for neutral technetium" (PASP 93:641. 1981). A continuing interest of his was forbidden transitions, such as are important in the solar corona, aurora, planetary nebula, and nova shells. He made important calculations of the energy levels and spectra of highly ionized species of iron and worked extensively on magnetic quadrupole radiation, which proved to be important in the solar corona. Garstang also studied the effects of strong magnetic field on atomic spectra, ranging from the thousand gauss fields of sunspots to megagauss fields of white dwarfs. He was internationally recognized for his work on light pollution, which turned into a major course change for him, becoming his primary research interest after 1984. Between 1984 and 2007, he published 40 scientific papers of which 37 concerned sky brightness in one way or another. He constructed and modified a light pollution model (Dus

  2. John Henry was a steel-drivin man... John Henry worked on the railroad, he drove steel. This consisted of driv-

    E-print Network

    Rao, Satish

    of men to build. One day, a man brought a steam engine to the tunnel and said it could drive steel better than any man. So, a contest was made between John Henry and the steam engine.. For twelve long hours, John Henry hammered and the steam engine drilled. At the end, the tape was brought in to measure

  3. Henry’s Law Constant and Overall Mass Transfer Coefficient for Formaldehyde Emission from Small Water Pools under Simulated Indoor Environmental Conditions

    EPA Science Inventory

    The Henry’s law constant (HLC) and the overall mass transfer coefficient are both important parameters for modeling formaldehyde emissions from aqueous solutions. In this work, the apparent HLCs for aqueous formaldehyde solutions were determined in the concentration range f...

  4. Air-Liquid Partition Coefficient for a Diverse Set of Organic Compounds: Henry’s Law Constant in Water and Hexadecane

    EPA Science Inventory

    The SPARC vapor pressure and activity coefficient models were coupled to estimate Henry’s Law Constant (HLC) in water and in hexadecane for a wide range of non-polar and polar solute organic compounds without modification to/or additional parameterization of the vapor pressure or...

  5. Nonequilibrium thermodynamics--A tool to describe heterogeneous Dick Bedeaux,bc

    E-print Network

    Kjelstrup, Signe

    Nonequilibrium thermodynamics--A tool to describe heterogeneous catalysis Dick Bedeaux,bc Signe are questionable. Using nonequilibrium thermodynamics we discuss how to integrate the coupling between heat as a separate thermodynamic system where the coupling between the vectorial heat flux and the scalar reaction

  6. Teaching Psychology and Literature: Melancholia as Motivation in the Novels of Dick Francis

    ERIC Educational Resources Information Center

    Wagner, Elaine

    2010-01-01

    Teaching literature from a psychological perspective provides a basis for the study and analysis of human motivation and behavior, as psychology and literature make mutual contributions to the study of both disciplines. Melancholia is a recurring theme in the novels of Dick Francis, and the first-person accounts of despair and depression are…

  7. Rangeland and Oak Relationships1 Dick R. McCleery2

    E-print Network

    Rangeland and Oak Relationships1 Dick R. McCleery2 Abstract: Hardwood rangelands are becoming guidelines for the management of coast live oak and blue oak. These methods and management outlines are those in this paper are from Soil Conservation Service Handbooks and field investigation, unless otherwise noted. OAK

  8. Free Boundary TRANSP Upgrade Dick Wieland John Schivell Doug McCune

    E-print Network

    Budny, Robert

    Free Boundary TRANSP Upgrade Dick Wieland John Schivell Doug Mc.1 Overview The free boundary equilibrium TRANSP upgrade (code name BRAZIL) is pro- ceeding in two stages, as described in more detail below. In the first stage, code name BRAZIL-0, the results of a standalone free

  9. Can hyperbolic phase of Brans-Dicke field account for Dark Matter?

    E-print Network

    Arik, M; Cifter, F

    2008-01-01

    We show that the introduction of a hyperbolic phase for Brans-Dicke (BD) field results in a flat vacuum cosmological solution of Hubble parameter H and fractional rate of change of BD scalar field, F which asymptotically approach constant values. At late stages, hyperbolic phase of BD field behaves like dark matter.

  10. Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick1

    E-print Network

    Barkan, Christopher P.L.

    Page 1 Design of Bulk Railway Terminals for the Shale Oil and Gas Industry C. Tyler Dick1 , P.E., M: Railway transportation is playing a key role in the development of many new shale oil and gas reserves in North America. In the rush to develop new shale oil and gas plays, sites for railway transload terminals

  11. Possible observational manifestations of wormholes in the Brans-Dicke theory

    SciTech Connect

    Alexeyev, S. O. Rannu, K. A.; Gareeva, D. V.

    2011-10-15

    The energy flux emitted during the accretion of matter onto a wormhole in the Brans-Dicke theory has been calculated. This characteristic is compared with its values calculated previously for wormholes in general relativity and for a Schwarzschild black hole.

  12. Chameleonic Generalized Brans--Dicke model and late-time acceleration

    E-print Network

    H. Farajollahi; M. Farhoudi; A. Salehi; H. Shojaie

    2011-08-22

    In this paper we consider Chameleonic Generalized Brans--Dicke Cosmology in the framework of FRW universes. The bouncing solution and phantom crossing is investigated for the model. Two independent cosmological tests: Cosmological Redshift Drift (CRD) and distance modulus are applied to test the model with the observation.

  13. Can Brans-Dicke scalar field account for dark energy and dark matter?

    E-print Network

    M. Arik M. C. Calik

    2006-04-21

    By using a linearized non-vacuum late time solution in Brans-Dicke cosmology we account for the seventy five percent dark energy contribution but not for approximately twenty-three percent dark matter contribution to the present day energy density of the universe.

  14. ORIGINAL PAPER Tribute to Dick Post on His 90th Birthday

    E-print Network

    has always done, longer than I have known him, and I have known him for 50 years. Maybe the new idea, the topic will turn to fusion mirror machines. Dick was introduced to fusion research through lectures mirror machines otherwise subject to MHD instability, and its application to the Kinetically Stabilized

  15. Antitumor-promoting constituents from Dioscorea bulbifera L. in JB6 mouse epidermal cells.

    PubMed

    Gao, Huiyuan; Kuroyanagi, Masanori; Wu, Lijun; Kawahara, Nobuo; Yasuno, Takeaki; Nakamura, Yoshiyuki

    2002-09-01

    An antitumor-promoting effect was found in the extracts/ingredients of a plant used as a traditional medicine in mainland China, using the neoplastic transformation assay of mouse epidermal JB6 cell lines. The ethyl acetate soluble fraction of 75% ethanol extract of the rhizomes of Dioscorea bulbifera L. showed an inhibitory effect against the tumor promotion of JB6 (Cl 22 and Cl 41) cells induced by a promoter, 12-O-tetradecanoylphorbol-13-acetate (TPA). Further investigation on the constituents of the EtOAc fraction from the rhizomes revealed the chemical structure to be kaempferol-3,5-dimethyl ether (1), caryatin (2), (+)-catechin (3), myricetin (4), quercetin-3-O-galactopyranoside (5), myricetin-3-O-galactopyranoside (6), myricetin-3-O-glucopyranoside (7) and diosbulbin B (8). Constituent antitumor-promoting activities were also examined in the same way. Compounds 1-7, characterized as flavonoids with the two hydroxyl groups at C-7 and C-4', showed the most potent inhibitory effect, but there seemed to be differences in the inhibitory effect between flavonol aglycones and flavonol glycosides. Compared with (-)-epicatechin, (+)-catechin exhibited much stronger inhibitory activity which suggested that chemical stereo structures of compounds affect the efficiency of inhibition. Compound 8 showed moderate activity. The constituents with antitumor-promoting activity from this plant are reported for the first time. PMID:12230129

  16. In praise of the literary eponym—Henry V sign

    PubMed Central

    Houlihan, C.; Marks, J. Charles

    2013-01-01

    The use of eponyms in medicine is often discouraged. However, the literary eponym should be an exception as it is not linked with many of the difficulties associated with conventional eponyms and offers descriptive brevity and accuracy. Here, we illustrate the point with Henry V sign, which will be familiar to many who have cared for patients in the terminal stage of illness. PMID:23108030

  17. Constructing the Cayley Graphs of Fd/Dp Henry Bradford

    E-print Network

    Lackenby, Marc

    Constructing the Cayley Graphs of Fd/Dp n(Fd) Henry Bradford 2010 1 Introduction For any group G dimension subgroup Dp n(G) of G is the group {g G | g - e In} G. It is immediate from the definition). The natural (group) homomorphism : Dp n(G) In/In+1, given by (g) = g - e, induces a monomorphism ^: Dp n(G)/Dp

  18. Sarcophilia, cremation and Sir Henry Thompson (1820-1904).

    PubMed

    Jellinek, E H

    2009-11-01

    Sarcophilia, a neologism for an attachment to human remains, is set in a review of the history of the disposal of the dead. The ancient practice of cremation was relaunched late in the 19th century by the urological surgeon cum social reformer Sir Henry Thompson. He was stimulated by Edwin Chadwick and Charles Dickens, and by Charles Darwin's observations on the earthworm. Sarcophilia is the reason for the controversial Human Tissue Act of 2004. PMID:20029076

  19. Temperature dependencies of Henry's law constants for different plant sesquiterpenes.

    PubMed

    Copolovici, Lucian; Niinemets, Ülo

    2015-11-01

    Sesquiterpenes are plant-produced hydrocarbons with important ecological functions in plant-to-plant and plant-to-insect communication, but due to their high reactivity they can also play a significant role in atmospheric chemistry. So far, there is little information of gas/liquid phase partition coefficients (Henry's law constants) and their temperature dependencies for sesquiterpenes, but this information is needed for quantitative simulation of the release of sesquiterpenes from plants and modeling atmospheric reactions in different phases. In this study, we estimated Henry's law constants (Hpc) and their temperature responses for 12 key plant sesquiterpenes with varying structure (aliphatic, mono-, bi- and tricyclic sesquiterpenes). At 25 °C, Henry's law constants varied 1.4-fold among different sesquiterpenes, and the values were within the range previously observed for monocyclic monoterpenes. Hpc of sesquiterpenes exhibited a high rate of increase, on average ca. 1.5-fold with a 10 °C increase in temperature (Q10). The values of Q10 varied 1.2-fold among different sesquiterpenes. Overall, these data demonstrate moderately high variation in Hpc values and Hpc temperature responses among different sesquiterpenes. We argue that these variations can importantly alter the emission kinetics of sesquiterpenes from plants. PMID:26291755

  20. BOOK REVIEW: Joseph Henry: The Rise of an American Scientist

    NASA Astrophysics Data System (ADS)

    Crawford, Elspeth

    1998-09-01

    Albert Moyer has clearly done his research into the events of Joseph Henry's life. The personal, professional, sociological and scientific aspects have been meticulously detailed throughout and the ordering, as in the chapter headings, is chronological, so that there is some element of each of these aspects in each chapter. This is unfortunately both the strength and the weakness of the biography, as the detail seemed to me to be the most remarkable characteristic of the writing. But, the bigger stories, or the themes, which might have been possible, seemed to get lost. Hence, I found this a book for those who are seriously interested in Joseph Henry; but for those whose interest might be more general, say having an interest in nineteenth century growth of scientific institutions, or wanting to understand the conceptual development of electromagnetism, there seemed to be too much which came from the Henry point of view, rather than locating Henry within his time and context. This is a remark about style, rather than omission of content, as the myriad of details in each paragraph certainly inform the reader about the context. For instance, some sociology of the USA in the nineteenth century could be inferred, say showing how a young man from a modest background might make his way into a professional life, but the information is so particularly a description of Henry's experience that one has to rely on prior knowledge or make assumptions in order to create a sociological perspective. That is, I now know, what happened to Henry, but I do not know if his case was in any sense typical or atypical. Similarly there is information about education in general at that time, and scientific education, research and its publication, as it applied to Henry. The relationships between science in the USA and in Europe have a place, and there is quite a bit of information about the institutions in which Henry worked, particularly Albany Academy, Princeton and the Smithsonian. Henry's marriage and family, and his beliefs are addressed; we hear how his work kept him from his family at times, but also how much they meant to him. And, of course, there are scientific questions and factual information about the field in which he is renowned - electromagnetism. It is hard to find fault with the quantity and breadth of what is offered, and very easy to criticize the way in which it is offered; nevertheless it seems to me that this is a superb record of events, but without the themes or pictures that would make it a biography. Before reading the book, I was acquainted with some of Henry's writing on electromagnetism (researched as part of my own work on Michael Faraday). I looked in vain for the personality whom I had met in a few scientific papers, a person who had written of new experimentation and results, who knew that new theory was needed also, and who, when he could not think of any, said disarmingly, `this part of the investigation, was, for a time, given up almost in despair'. Moyer does not seem to convey this personality whose words engage other people, even at a distance in time. In spite of this severe criticism, the book has an enticing quality, probably best summarized by its introduction. This recounts the quite staggering attendance at Henry's funeral service and the tenor of obituary notices: this man was loved, by many. Hence, while reading, one continually looks for biography which would in some measure account for this loving and high regard. That is, we are given a measure of this man, and then it is as if the nature of the measure remains unknown however often mentioned. Maybe this beginning in a sense creates the disappointment. It would seem that Henry signifies something greater than wide achievements for those who actually knew him or who read his writing. Could this be the willingness to learn and keep trying, to put others' needs in front of his own, to have both modesty and enthusiasm for enquiry, not-knowing as well as knowing, etc? In other words, the humanness which is needed and needs, achievement, is hidden here a

  1. Henry's law constants of some environmentally important aldehydes

    SciTech Connect

    Betterton, E.A.; Hoffmann, M.R.

    1988-12-01

    The Henry's law constants of seven aldehydes have been determined as a function of temperature by bubble-column and by head-space techniques. The compounds were chosen for their potential importance in the polluted troposphere and to allow structure-reactivity patterns to be investigated. The results (at 25/degree/C) are as follows (in units of M atm/sup /minus/1/): chloral, 3.44 /times/ 10/sup 5/; glyoxal, greater than or equal to3 /times/ 10/sup 5/; methylglyoxal, 3.71 /times/ 10/sup 3/; formaldehyde, 2.97 /times/ 10/sup 3/; benzaldehyde, 3.74 /times/ 10/sup 1/; hydroxyacetaldehyde, 4.14 /times/ 10/sup 4/; acetaldehyde, 1.14 /times/ 10/sup 1/. A plot of Taft's parameter, ..sigma..sigma*, vs log H* (the apparent Henry's law constant) gives a straight line with a slope of 1.72. H* for formaldehyde is anomalously high, as expected, but the extremely high value for hydroxyacetaldehyde was unexpected and may indicate that ..cap alpha..-hydroxy-substituted aldehydes could have an usually high affinity for the aqueous phase. The intrinsic Henry's law constants, H, corrected for hydration, do not show a clear structure-reactivity pattern for this series of aldehydes.

  2. Optimal Learning in Multilayer Neural Networks O. Winther a;\\Lambda B. Lautrup a;b , and JB. Zhang c

    E-print Network

    Winther, Ole

    Optimal Learning in Multilayer Neural Networks O. Winther a;\\Lambda B. Lautrup a;b , and J­B. Zhang­layer network, a com­ mittee machine, and in the second the task is defined by the so­called prototype problem. The architecture of the learning machine is in both cases defined to be a committee machine. For both tasks

  3. A paracrine signal mediates the cell transformation response to low dose gamma radiation in JB6 cells

    SciTech Connect

    Weber, Thomas J.; Siegel, Robert W.; Markillie, Lye Meng; Chrisler, William B.; Lei, Xingye C.; Colburn, Nancy H.

    2005-05-01

    Radiation at low doses (? 50 cGy) can enhance or reduce tumor incidence in the mouse skin multistage model of carcinogenesis, depending on the timing of radiation exposure relative to chemical initiator. Here we have used JB6 mouse epidermal cells, an in vitro model of late stage tumor promotion, to evaluate the effects of low dose gamma radiation on cell transformation response. JB6 cells were isolated from the DNA-dependent Protein Kinase (DNA-PK) deficient Balb/c mouse that exhibits an unusually sensitive mammary tumor response to ionizing radiation. Exposure of JB6 cells to low dose (2-20 cGy) gamma radiation increased cell transformation response in a dose- and cell density-dependent fashion. JB6 cells were transfected with a membrane targeted enhanced yellow fluorescent protein (EYFP-membrane) and used as bystander cells in a co-culture model. Co-culture of 10 cGy irradiated JB6 cells with na?ve EYFP-membrane cells resulted in a significant increase in EYFP-expressing colonies, relative to co-cultures of sham exposed P+ cells/na?ve EYFP-membrane cells. In contrast, low dose gamma radiation (20 cGy) reduced tumor promoter (epidermal growth factor; 12-O-tetradecanoyl phorbol-13-acetate)-induced transformation response and cell survival in a clonogenic assay to a comparable extent (40%). Our results demonstrate different selective pressures depending on whether low dose radiation modulated the cell transformation response of irradiated or bystander cells, or whether irradiation occurred in conjunction with tumor promoter treatment. The co-culture system developed here is a promising model to define positive and negative selective pressures induced by low dose radiation in a DNA damage repair deficient context that are relevant to carcinogenesis responses.

  4. Development of Monopole Interaction Models for Ionic Compounds. Part I: Estimation of Aqueous Henry’s Law Constants for Ions and Gas Phase pKa Values for Acidic Compounds

    EPA Science Inventory

    The SPARC (SPARC Performs Automated Reasoning in Chemistry) physicochemical mechanistic models for neutral compounds have been extended to estimate Henry’s Law Constant (HLC) for charged species by incorporating ionic electrostatic interaction models. Combinations of absolute aq...

  5. Experimentally determined Henry's Law coefficients of phenol, 2-methylphenol and 2-nitrophenol in the temperature range 281-302 K 

    E-print Network

    Harrison, Mark A J; Cape, J Neil; Heal, Mathew R

    2002-01-01

    The Henry’s Law coefficient is a key physical parameter in the partitioning, and hence environmental fate, of a chemical species between air and water. Despite the acknowledged polluting potential of phenol, 2-methylphenol (o-cresol) and 2...

  6. 76 FR 50171 - Notice of Intent To Prepare an Environmental Impact Statement for the Henrys Fork Salinity...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-12

    ...Impact Statement for the Henrys Fork Salinity Control Project Plan, Sweetwater and...Statement (EIS) for the Henrys Fork Salinity Control Project Plan (SCPP). The NRCS...Improvements'' alternative assumes a salinity control project will be...

  7. Basic Fibroblast Growth Factor Regulates Persistent ERK Osciliations in Premaligant but not Malignant JB6 Cells

    SciTech Connect

    Weber, Thomas J.; Shankaran, Harish; Wiley, H. S.; Opresko, Lee K.; Chrisler, William B.; Quesenberry, Ryan D.

    2010-05-02

    basic fibroblast growth factor (bFGF or FGF2) plays an important role in epidermal wound healing in vivo and is associated with a persistent increased in the extracellular signal-regulated kinase (ERK) pathway in vitro. Here we have examined whether bFGF induces the closure of an experimental scratch wound in JB6 mouse epidermal cells and have explored the regulation of the ERK pathway by bFGF in the context of kinase oscillations. bFGF stimulation is associated with increases in cellular phospho-ERK and phospho-c-Jun levels. In addition, bFGF increases cell proliferation and a change in cell morphology (stellate appearance) in a dose-dependent fashion (0.1 – 100 ng/ml). bFGF treatment also promoted the closure of an experimental scratch wound in vitro. JB6 cells were stably transfected with an ERK1-GFP chimera to follow temporal ERK subcellular distribution patterns. We observe a persistent upregulation of the ERK pathway, as evidenced by a significant increase in nuclear ERK1-GFP levels at time points up to 24 hr after bFGF treatment. Interestingly, at the single cell level, ERK is observed to oscillate between nuclear and cytosolic compartments in response to bFGF treatment. Because this oscillatory behavior is asynchronous in the cell population, it is only clearly resolved at the single cell level. Collectively, data presented here are consistent with an important role for bFGF in wound healing and suggest a more complex regulation of the ERK pathway by bFGF than has previously been appreciated.

  8. Mitochondrial Uncoupling Inhibits p53 Mitochondrial Translocation in TPA-Challenged Skin Epidermal JB6 Cells

    PubMed Central

    Wang, Fei; Fu, Xueqi; Chen, Xia; Chen, Xinbin; Zhao, Yunfeng

    2010-01-01

    The tumor suppressor p53 is known to be able to trigger apoptosis in response to DNA damage, oncogene activation, and certain chemotherapeutic drugs. In addition to its transcriptional activation, a fraction of p53 translocates to mitochondria at the very early stage of apoptosis, which eventually contributes to the loss of mitochondrial membrane potential, generation of reactive oxygen species (ROS), cytochrome c release, and caspase activation. However, the mitochondrial events that affect p53 translocation are still unclear. Since mitochondrial uncoupling has been suggested to contribute to cancer development, herein, we studied whether p53 mitochondrial translocation and subsequent apoptosis were affected by mitochondrial uncoupling using chemical protonophores, and further verified the results using a siRNA approach in murine skin epidermal JB6 cells. Our results showed that mitochondrial uncoupling blocked p53 mitochondrial translocation induced by 12-O-tetradecanoylphorbol 13-acetate (TPA), a known tumor promoter to induce p53-mediated apoptosis in skin carcinogenesis. This blocking effect, in turn, led to preservation of mitochondrial functions, and eventually suppression of caspase activity and apoptosis. Moreover, uncoupling protein 2 (UCP2), a potential suppressor of ROS in mitochondria, is important for TPA-induced cell transformation in JB6 cells. UCP2 knock down cells showed enhanced p53 mitochondrial translocation, and were less prone to form colonies in soft agar after TPA treatment. Altogether, our data suggest that mitochondrial uncoupling may serve as an important regulator of p53 mitochondrial translocation and p53-mediated apoptosis during early tumor promotion. Therefore, targeting mitochondrial uncoupling may be considered as a novel treatment strategy for cancer. PMID:20976134

  9. Louvain-la-Neuve, le 25 septembre 2012 L'UCL lance la deuxime dition du Prix Henry Bauchau

    E-print Network

    Nesterov, Yurii

    internationale Henry Bauchau ; - Christian et Patrick Bauchau, fils de l'écrivain. Le Fonds Henri Bauchau En 2006Louvain-la-Neuve, le 25 septembre 2012 Culture L'UCL lance la deuxième édition du Prix Henry Bauchau Quelques jours après sa disparition, à quelques mois du 100ème anniversaire d'Henry Bauchau, l

  10. Editing Cavendish: Maxwell and The Electrical Researches of Henry Cavendish

    E-print Network

    Falconer, Isobel

    2015-01-01

    During the last five years of his life, 1874-79, James Clerk Maxwell was absorbed in editing the electrical researches of Henry Cavendish, performed 100 years earlier. This endeavour is often assumed to be a work of duty to the Cavendish family, and an unfortunate waste of Maxwell's time. By looking at the history of Cavendish's papers, and the editorial choices that Maxwell made, this paper questions this assumption, considering the importance of Cavendish's experiments in Maxwell's electrical programme, and the implications that he may have derived for developing a doctrine of experimental method.

  11. Henry Cavendish, Johann von Soldner, and the deflection of light

    NASA Astrophysics Data System (ADS)

    Will, Clifford M.

    1988-05-01

    The gravitational deflection of light based on Newtonian theory and the corpuscular model of light was calculated, but never published, around 1784 by Henry Cavendish, almost 20 years earlier than the first published calculation by Johann Georg von Soldner. The two results are slightly different because, while Cavendish treated a light ray emitted from infinity, von Soldner treated a light ray emitted from the surface of the gravitating body. At the first order of approximation, they agree with each other; both are one-half the value predicted by general relativity and confirmed by experiment.

  12. www.imstat.org/aihp Annales de l'Institut Henri Poincar -Probabilits et Statistiques

    E-print Network

    Chen, Xia

    www.imstat.org/aihp Annales de l'Institut Henri Poincaré - Probabilités et Statistiques 2009, Vol. 45, No. 3, 626­666 DOI: 10.1214/08-AIHP181 © Association des Publications de l'Institut Henri [9] and Kendall [10]). They also arise in the theory of intersections and self intersections

  13. Ann. Inst. Henri Poincar, Vol. 35, n 6, 1999, p. 765-791. Probabilits et Statistiques

    E-print Network

    Thalmaier, Anton

    Ann. Inst. Henri Poincaré, Vol. 35, n 6, 1999, p. 765-791. Probabilités et Statistiques Manifold. This gives a probabilistic alternative to the coupling technique used by Kendall (1994). © Elsevier, Paris@wiener.iam.uni-bonn.de. Annales de l'Institut Henri Poincaré - Probabilités et Statistiques - 0246-0203 Vol. 35/99/06/© Elsevier

  14. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 1 2013-10-01 2013-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES APPLICABLE TO THE PUBLIC BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  15. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 1 2011-10-01 2011-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES APPLICABLE TO THE PUBLIC BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  16. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 1 2014-10-01 2014-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES APPLICABLE TO THE PUBLIC BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  17. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 1 2012-10-01 2012-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES APPLICABLE TO THE PUBLIC BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  18. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PROCEDURES APPLICABLE TO THE PUBLIC BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  19. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...2013-10-01 2013-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD...BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  20. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...2012-10-01 2012-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD...BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  1. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...2010-10-01 2010-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD...BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  2. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...2014-10-01 2014-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD...BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  3. 46 CFR 7.55 - Cape Henry, VA to Cape Fear, NC.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...2011-10-01 2011-10-01 false Cape Henry, VA to Cape Fear, NC. 7.55 Section 7.55 Shipping COAST GUARD...BOUNDARY LINES Atlantic Coast § 7.55 Cape Henry, VA to Cape Fear, NC. (a) A line drawn from Rudee Inlet Jetty Light “2”...

  4. BARNACLES OF JAPAN AND BERING SEA By Henry A. Pilsbry, Sc. D.

    E-print Network

    BARNACLES OF JAPAN AND BERING SEA .:1- By Henry A. Pilsbry, Sc. D. Curator Department of ., 1909. ~J· ·,.,' · " .~,.,-' 3 P L AT E VIII. #12;BARNACLES OF JAPAN AND BERING SEA. ,;I. By HENRY the expedition of 1906. With a single exception, all are from Japanese waters and Bering Sea. The stations

  5. 15. Historic American Buildings Survey. Plan of Fort McHenry, by ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. Historic American Buildings Survey. Plan of Fort McHenry, by William Tell Poussin, 1819. National Archives, Records of the War Department, Cartographic Section, Record Group 77, drawer 51, sheet 2. - Fort McHenry National Monument & Historic Shrine, East Fort Avenue at Whetstone Point, Baltimore, Independent City, MD

  6. Estimation of Henry's Law Constant for a Diverse Set of Organic Compounds from Molecular Structure

    EPA Science Inventory

    The SPARC (SPARC Performs Automated Reasoning in Chemistry) vapor pressure and activity coefficient models were coupled to estimate Henry’s Law Constant (HLC) in water and in hexadecane for a wide range of non-polar and polar organic compounds without modification or additional p...

  7. Henry's law, surface tension, and surface adsorption in dilute binary mixtures

    E-print Network

    Henry's law, surface tension, and surface adsorption in dilute binary mixtures Akira Onukia. The solute partitioning between gas and liquid Henry's law and the surface tension change are discussed fraction X and the temperature-derivative / T cx,p of the surface tension at fixed pressure p

  8. 1787 and 1776: Patrick Henry, James Madison, and the Revolutionary Legitimacy of the Constitution.

    ERIC Educational Resources Information Center

    Banning, Lance

    1988-01-01

    Discusses Patrick Henry's and James Madison's opinions on how the U.S. Constitution should be constructed. Describes how Henry introduced a set of substantive objections which were shared by Antifederalists throughout the country and persuaded many Revolutionaries that the Constitution was essentially at odds with the principles of 1776. (BSR)

  9. From Classrooms to Careers: The Senior Mastery Process at Henry Ford Academy.

    ERIC Educational Resources Information Center

    Parizek, Deborah; Kesavan, Sandy

    The Henry Ford Academy is the nations first charter school developed jointly by a global corporation, public education, and a non-profit cultural institution. The Senior Mastery Process at Henry Ford Academy is an innovative, challenging program of career exploration and research project for high school seniors. Beginning with initial job…

  10. Collaborative Research Opportunities with Henry Ford Health System: Bones, Brains, Blood Pressure, and Beyond

    E-print Network

    Finley Jr., Russell L.

    Collaborative Research Opportunities with Henry Ford Health System: Bones, Brains, Blood Pressure Programs Moderators: Margot LaPointe, Ph.D. Vice President, Research, Henry Ford Health System mlapoin1 Medicine's Hypertension and Vascular Research Division HFHS Josephine Ford Cancer Center's Cancer Research

  11. Dissipative Dicke model with non-linear atom-photon interaction

    E-print Network

    A L Grimsmo; A S Parkins

    2013-05-01

    We study a generalized Dicke model, as recently realized in an atomic quantum gas experiment, describing the collective interaction of N two-level atoms with a single cavity mode. The model takes account of dissipation of the cavity field, and includes a non-linear atom-photon coupling, not present in the conventional Dicke model. We extend previous theoretical investigations of a semiclassical model by including all quantum effects and considering finite atom number N . Our results show good agreement between quantum expectation values and the semiclassical model as N is increased, but also show exotic behaviour for the corresponding quantum state as the non-linear atom-photon coupling is varied.

  12. Higher Dimensional Szekeres' Space-time in Brans-Dicke Scalar Tensor Theory

    E-print Network

    Asit Banerjee; Ujjal Debnath; Subenoy Chakraborty

    2004-04-21

    The generalized Szekeres family of solution for quasi-spherical space-time of higher dimensions are obtained in the scalar tensor theory of gravitation. Brans-Dicke field equations expressed in Dicke's revised units are exhaustively solved for all the subfamilies of the said family. A particular group of solutions may also be interpreted as due to the presence of the so-called C-field of Hoyle and Narlikar and for a chosen sign of the coupling parameter. The models show either expansion from a big bang type of singularity or a collapse with the turning point at a lower bound. There is one particular case which starts from the big bang, reaches a maximum and collapses with the in course of time to a crunch.

  13. Collapse to Black Holes in Brans-Dicke Theory: II. Comparison with General Relativity

    E-print Network

    Mark A. Scheel; Stuart L. Shapiro; Saul A. Teukolsky

    1994-11-10

    We discuss a number of long-standing theoretical questions about collapse to black holes in the Brans-Dicke theory of gravitation. Using a new numerical code, we show that Oppenheimer-Snyder collapse in this theory produces black holes that are identical to those of general relativity in final equilibrium, but are quite different from those of general relativity during dynamical evolution. We find that there are epochs during which the apparent horizon of such a black hole passes {\\it outside\\/} the event horizon, and that the surface area of the event horizon {\\it decreases\\/} with time. This behavior is possible because theorems which prove otherwise assume $R_{ab}l^al^b \\ge 0$ for all null vectors $l^a$. We show that dynamical spacetimes in Brans-Dicke theory can violate this inequality, even in vacuum, for any value of $\\omega$.

  14. Chameleon effect in the Jordan frame of the Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Quiros, Israel; García-Salcedo, Ricardo; Gonzalez, Tame; Horta-Rangel, F. Antonio

    2015-08-01

    In this paper we investigate the chameleon effect in the different conformal frames of the Brans-Dicke (BD) theory. Given that, in the standard literature on the subject, the chameleon is described in the Einstein frame almost exclusively, here we pay special attention to the description of this effect in the Jordan and in the string frames. It is shown that, in general, terrestrial and solar system bounds on the mass of the BD scalar field, and bounds of cosmological origin, are difficult to reconcile at once through a single chameleon potential. We point out that, in a cosmological context, provided that the effective chameleon potential has a minimum within a region of constant density of matter, the Brans-Dicke theory transmutes into general relativity with a cosmological constant, in that region. This result, however, can be only locally valid.

  15. Uniqueness of the Machian Solution in the Brans-Dicke Theory

    E-print Network

    Miyazaki, A

    2001-01-01

    Machian solutions of which the scalar field exhibits the asymptotic behavior $\\phi =O(\\rho /\\omega)$ are generally explored for the homogeneous and isotropic universe in the Brans-Dicke theory. It is shown that the Machian solution is unique for the closed and the open space. Such a solution is restricted to one that satisfies the relation $GM/c^{2}a=const$, which is fixed to $\\pi $ in the theory for the closed model. Another type of solution satisfying $\\phi =O(\\rho /\\omega)$ with the arbitrary coupling constant $% \\omega $ is obtained for the flat space. This solution has the scalar field $% \\phi \\propto \\rho t^{2}$ and also keeps the relation $GM/c^{2}R=const$ all the time. This Machian relation and the asymptotic behavior $\\phi =O(\\rho /\\omega)$ is equivalent to each other in the Brans-Dicke theory.

  16. Uniqueness of the Machian Solution in the Brans-Dicke Theory

    E-print Network

    A. Miyazaki

    2001-01-29

    Machian solutions of which the scalar field exhibits the asymptotic behavior $\\phi =O(\\rho /\\omega)$ are generally explored for the homogeneous and isotropic universe in the Brans-Dicke theory. It is shown that the Machian solution is unique for the closed and the open space. Such a solution is restricted to one that satisfies the relation $GM/c^{2}a=const$, which is fixed to $\\pi $ in the theory for the closed model. Another type of solution satisfying $\\phi =O(\\rho /\\omega)$ with the arbitrary coupling constant $% \\omega $ is obtained for the flat space. This solution has the scalar field $% \\phi \\propto \\rho t^{2}$ and also keeps the relation $GM/c^{2}R=const$ all the time. This Machian relation and the asymptotic behavior $\\phi =O(\\rho /\\omega)$ is equivalent to each other in the Brans-Dicke theory.

  17. Collapse to Black Holes in Brans-Dicke Theory: I. Horizon Boundary Conditions for Dynamical Spacetimes

    E-print Network

    Mark A. Scheel; Stuart L. Shapiro; Saul A. Teukolsky

    1994-11-10

    We present a new numerical code that evolves a spherically symmetric configuration of collisionless matter in the Brans-Dicke theory of gravitation. In this theory the spacetime is dynamical even in spherical symmetry, where it can contain gravitational radiation. Our code is capable of accurately tracking collapse to a black hole in a dynamical spacetime arbitrarily far into the future, without encountering either coordinate pathologies or spacetime singularities. This is accomplished by truncating the spacetime at a spherical surface inside the apparent horizon, and subsequently solving the evolution and constraint equations only in the exterior region. We use our code to address a number of long-standing theoretical questions about collapse to black holes in Brans-Dicke theory.

  18. Integrability vs exact solvability in the quantum Rabi and Dicke models

    E-print Network

    Murray T. Batchelor; Huan-Qiang Zhou

    2015-01-05

    The Rabi model describes the simplest interaction between light and matter via a two-level quantum system interacting with a bosonic field. We demonstrate that the fully quantised version of the Rabi model is integrable in the Yang-Baxter sense at two parameter values. The model is argued to be not Yang-Baxter integrable in general. This is in contrast to the claim that the quantum Rabi model is integrable based on a phenomenological criterion of quantum integrability not presupposing the existence of a set of commuting operators. Similar Yang-Baxter integrable points are identified for the generalised Rabi model and the fully quantised Dicke model. The integrable points have particular implications for the level statistics of the Dicke model.

  19. Functional integral approach to a full Dicke model with nearest-neighbour interaction

    NASA Astrophysics Data System (ADS)

    Inoue, Jun-ichi

    2012-08-01

    We discuss a possible phase transition in a full Dicke model that allows a local excitation in a two-level system to migrate to the nearest-neighbour sites. This model is found to be singular in the sense that a conventional scheme to handle a Dicke model with a generic interaction is not applicable. We thus begin with devising an appropriate method for the present model, and then evaluate a partition function associated with the model within a framework of imaginary time functional integral method. Through the stationary phase analysis of the partition function, we show that a condensation of a coupling mode of two degrees of freedom that constitute the model, photon and the local excitation, would occur. The result demonstrates contrasting features of the phase, depending on the sign of the migration term. A connection of our findings with an experimental realization, Frenkel exciton polariton condensation in an organic dye aggregate, is pointed out.

  20. Improving the worthiness of the Henry problem as a benchmark for density-dependent groundwater flow models

    E-print Network

    Clement, Prabhakar

    Improving the worthiness of the Henry problem as a benchmark for density-dependent groundwater flow), Improving the worthiness of the Henry problem as a benchmark for density- dependent groundwater flow models January 2004. [1] This study considers the worthiness of the Henry saltwater intrusion problem as a test

  1. A Laboratory Experiment To Measure Henry's Law Constants of Volatile Organic Compounds with a Bubble Column and a Gas

    E-print Network

    Lee, Shan-Hu

    experiment is described to measure Henry's law constants of organic compounds using a bubble column and gas system. By measuring the relative concentrations of the solute in the gas and liquid phases, Henry's lawA Laboratory Experiment To Measure Henry's Law Constants of Volatile Organic Compounds

  2. The economics of evolution: Henry Ford and the Model T Robert A. Laird and Thomas N. Sherratt

    E-print Network

    Laird, Robert

    The economics of evolution: Henry Ford and the Model T Robert A. Laird and Thomas N. Sherratt R. A rarely damaged in scrapped Model T automobiles, Henry Ford is alleged to have concluded that the kingpins centering on the business acumen of Henry Ford to help explain why organisms should not be `over

  3. Exact solutions to Brans-Dicke cosmologies in flat Friedmann universes.

    NASA Technical Reports Server (NTRS)

    Morganstern, R. E.

    1971-01-01

    The Brans-Dicke cosmological equations for flat Friedmann-type expanding universes are solved parametrically for time, density, expansion parameter, and scalar field. These results reduce to a previously obtained exact solution to the radiation cosmology. Although the scalar field may be undetectable at the present epoch, it is felt that, if it exists, it must play an important role as one approaches the initial singularity of the cosmology.

  4. Constraining red-shift parametrization parameters in Brans-Dicke theory: evolution of open confidence contours

    NASA Astrophysics Data System (ADS)

    Biswas, Ritabrata; Debnath, Ujjal

    2014-10-01

    In Brans-Dicke theory of gravity, from the nature of the scalar field-potential considered, the dark energy, dark matter, radiation densities predicted by different observations and the closedness of the universe considered, we can fix our ? BD , the Brans-Dicke parameter, keeping only the thing in mind that from different solar system constrains it must be greater than 5×105. Once we have a value, satisfying the required lower boundary, in our hand we proceed for setting unknown parameters of the different dark energy models' EoS parameter. In this paper we work with three well known red shift parametrizations of dark energy EoS. To constrain their free parameters for Brans Dicke theory of gravity we take twelve point red shift vs Hubble's parameter data and perform ? 2 test. We present the observational data analysis mechanism for Stern, Stern+BAO and Stern+BAO+CMB observations. Minimising ? 2, we obtain the best fit values and draw different confidence contours. We analyze the contours physically. Also we examine the best fit of distance modulus for our theoretical models and the Supernovae Type Ia Union2 sample. For Brans Dicke theory of gravity the difference from the mainstream confidence contouring method of data analysis id that the confidence contours evolved are not at all closed contours like a circle or a ellipse. Rather they are found to be open contours allowing the free parameters to float inside a infinite region of parameter space. However, negative EoSs are likely to evolve from the best fit values.

  5. Constraining Red-shift Parametrization Parameters in Brans-Dicke Theory: Evolution of Open Confidence Contours

    E-print Network

    Ritabrata Biswas; Ujjal Debnath

    2013-12-04

    In Brans Dicke theory of gravity, from the nature of the scalar field-potential considered, the dark energy, dark matter, radiation densities predicted by different observations and the closedness of the universe considered, we can fix our $\\omega_{BD}$, the Brans Dicke parameter, keeping only the thing in mind that from different solar system constrains it must be greater than $5\\times 10^{5}$. Once we have a value, satisfying the required lower boundary, in our hand we proceed for setting unknown parameters of the different dark energy models' EoS parameter. In this paper we work with three well known red shift parametrizations of dark energy EoS. To constrain their free parameters for Brans Dicke theory of gravity we take twelve point red shift vs Hubble's parameter data and perform $\\chi^{2}$ test. We present the observational data analysis mechanism for Stern, Stern+BAO and Stern+BAO+CMB observations. Minimising $\\chi^2$, we obtain the best fit values and draw different confidence contours. We analyze the contours physically. Also we examine the best fit of distance modulus for our theoretical models and the Supernovae Type Ia Union2 sample. For Brans Dicke theory of gravity the difference from the mainstream confidence contouring method of data analysis id that the confidence contours evolved are not at all closed contours like a circle or a ellipse. Rather they are found to be open contours allowing the free parameters to float inside a infinite region of parameter space. However, negative EoSs are likely to evolve from the best fit values.

  6. Role of Chameleon Field in presence of Variable Modified Chaplygin gas in Brans-Dicke Theory

    E-print Network

    Shuvendu Chakraborty; Ujjal Debnath

    2011-08-23

    In this work, we have considered FRW model of the universe for Brans-Dicke (BD) theory with BD scalar field as a Chameleon field. First we have transformed the field equations and conservation equation from Jordan's frame to Einstein's frame. We have shown in presence of variable modified Chaplygin gas, the potential function $V$ and another analytic function $f$ always increase with respect to BD-Chameleon scalar field $\\phi$.

  7. Shear and Vorticity in an Accelerating Brans-Dicke Lambda-Universe with Torsion

    E-print Network

    Berman, Marcelo Samuel

    2008-01-01

    We study accelerating Universes with power-law scale-factors. We include shear and vorticity, a cosmological "constant" term, and spin from torsion, as in Einstein-Cartan's theory when a scalar-field of Brans-Dicke type acts in the model. We find a "no-hair" result, for shear and vorticity; we also make contact with the alternative Machian picture of the Universe.

  8. Bianchi type-V dark energy model in Brans-Dicke theory of gravitation

    NASA Astrophysics Data System (ADS)

    Rao, V. U. M.; Jaya Sudha, V.

    2015-05-01

    Spatially homogeneous and anisotropic Bianchi type-V with variable equation of state (EOS) parameter and constant deceleration parameter is investigated in the presence of anisotropic dark energy in Brans-Dicke (Phys. Rev. 124:925, 1961) scalar-tensor theory of gravitation. The field equations of this theory have been solved by using the variation law for generalized Hubble's parameter proposed by Bermann (Nuovo Cimento B 74:82, 1983). Some physical and kinematical properties of the model are also discussed.

  9. Symmetry analysis and exact solutions of modified Brans-Dicke cosmological equations

    SciTech Connect

    Arik, Metin; Sheftel, Mikhail B.

    2008-09-15

    We perform a symmetry analysis of modified Brans-Dicke cosmological equations and present exact solutions. We discuss how the solutions may help to build models of cosmology where, for the early universe, the expansion is linear and the equation of state just changes the expansion velocity but not the linearity. For the late universe the expansion is exponential and the effect of the equation of state on the rate of expansion is just to change the constant Hubble parameter.

  10. Bianchi type-III models with anisotropic dark energy in Brans-Dicke-Rastall theory

    NASA Astrophysics Data System (ADS)

    Salako, Ines G.; Jawad, Abdul

    2015-10-01

    In this paper, we consider the Bianchi type-III metric (which is a spatially homogeneous and anisotropic) in the framework of a newly proposed Brans-Dicke-Rastall theory of gravitation by Caramês et al. (Eur. Phys. J. C 74:3145, 2014. In this scenario, we obtain the generalized form of the anisotropy parameter of the expansion, the dynamically anisotropic equation of state parameter, and a dynamical energy density in the presence of a single diagonal imperfect fluid. By assuming the anisotropy of the fluid, and exponential and power-law volumetric expansions, we find the exact solutions of the Brans-Dicke-Rastall field equations. We examine the isotropy of the fluid, of space, and of the expansion of the universe. It is observed that the universe can approach the isotropy monotonically even in the presence of an anisotropic fluid. We also note that the strong anisotropy observed in RG, respectively, is diminished considerably in the Rastall theory and Brans-Dicke-Rastall theory because of the influence of the parameters and.

  11. The Chameleon Effect in the Jordan Frame of the Brans--Dicke Theory

    E-print Network

    Quiros, Israel; Gonzalez, Tame; Horta-Rangel, F Antonio

    2015-01-01

    In this paper we investigate the chameleon effect in the different conformal frames of the Brans--Dicke theory. Given that, in the standard literature on the subject, the chameleon is described in the Einstein frame almost exclusively, here we pay special attention to the description of this effect in the Jordan and in the string frames. It is shown that, in general, terrestrial and solar system bounds on the mass of the BD scalar field, and bounds of cosmological origin, are difficult to reconcile at once through a single chameleon potential. We point out that, in a cosmological context, provided that the effective chameleon potential has a minimum within a region of constant density of matter, the Brans--Dicke theory transmutes into general relativity with a cosmological constant, in that region. This result, however, can be only locally valid. In cosmological settings de Sitter--general relativity is a global attractor of the Brans--Dicke theory only for the quadratic potential $V(\\phi)=M^2\\phi^2$, or for ...

  12. The Chameleon Effect in the Jordan Frame of the Brans--Dicke Theory

    E-print Network

    Israel Quiros; Ricardo García-Salcedo; Tame Gonzalez; F. Antonio Horta-Rangel

    2015-06-20

    In this paper we investigate the chameleon effect in the different conformal frames of the Brans--Dicke theory. Given that, in the standard literature on the subject, the chameleon is described in the Einstein frame almost exclusively, here we pay special attention to the description of this effect in the Jordan and in the string frames. It is shown that, in general, terrestrial and solar system bounds on the mass of the BD scalar field, and bounds of cosmological origin, are difficult to reconcile at once through a single chameleon potential. We point out that, in a cosmological context, provided that the effective chameleon potential has a minimum within a region of constant density of matter, the Brans--Dicke theory transmutes into general relativity with a cosmological constant, in that region. This result, however, can be only locally valid. In cosmological settings de Sitter--general relativity is a global attractor of the Brans--Dicke theory only for the quadratic potential $V(\\phi)=M^2\\phi^2$, or for potentials that asymptote to $M^2\\phi^2$.

  13. Constraining Red-shift Parametrization Parameters in Brans-Dicke Theory: Evolution of Open Confidence Contours

    E-print Network

    Biswas, Ritabrata

    2013-01-01

    In Brans Dicke theory of gravity, from the nature of the scalar field-potential considered, the dark energy, dark matter, radiation densities predicted by different observations and the closedness of the universe considered, we can fix our $\\omega_{BD}$, the Brans Dicke parameter, keeping only the thing in mind that from different solar system constrains it must be greater than $5\\times 10^{5}$. Once we have a value, satisfying the required lower boundary, in our hand we proceed for setting unknown parameters of the different dark energy models' EoS parameter. In this paper we work with three well known red shift parametrizations of dark energy EoS. To constrain their free parameters for Brans Dicke theory of gravity we take twelve point red shift vs Hubble's parameter data and perform $\\chi^{2}$ test. We present the observational data analysis mechanism for Stern, Stern+BAO and Stern+BAO+CMB observations. Minimising $\\chi^2$, we obtain the best fit values and draw different confidence contours. We analyze th...

  14. Brans-Dicke Theory with ?>0: Black Holes and Large Scale Structures.

    PubMed

    Bhattacharya, Sourav; Dialektopoulos, Konstantinos F; Romano, Antonio Enea; Tomaras, Theodore N

    2015-10-30

    A step-by-step approach is followed to study cosmic structures in the context of Brans-Dicke theory with positive cosmological constant ? and parameter ?. First, it is shown that regular stationary black-hole solutions not only have constant Brans-Dicke field ?, but can exist only for ?=?, which forces the theory to coincide with the general relativity. Generalizations of the theory in order to evade this black-hole no-hair theorem are presented. It is also shown that in the absence of a stationary cosmological event horizon in the asymptotic region, a stationary black-hole horizon can support a nontrivial Brans-Dicke hair. Even more importantly, it is shown next that the presence of a stationary cosmological event horizon rules out any regular stationary solution, appropriate for the description of a star. Thus, to describe a star one has to assume that there is no such stationary horizon in the faraway asymptotic region. Under this implicit assumption generic spherical cosmic structures are studied perturbatively and it is shown that only for ?>0 or ??-5 their predicted maximum sizes are consistent with observations. We also point out how, many of the conclusions of this work differ qualitatively from the ?=0 spacetimes. PMID:26565454

  15. Brans-Dicke Theory with ? >0 : Black Holes and Large Scale Structures

    NASA Astrophysics Data System (ADS)

    Bhattacharya, Sourav; Dialektopoulos, Konstantinos F.; Romano, Antonio Enea; Tomaras, Theodore N.

    2015-10-01

    A step-by-step approach is followed to study cosmic structures in the context of Brans-Dicke theory with positive cosmological constant ? and parameter ? . First, it is shown that regular stationary black-hole solutions not only have constant Brans-Dicke field ? , but can exist only for ? =?, which forces the theory to coincide with the general relativity. Generalizations of the theory in order to evade this black-hole no-hair theorem are presented. It is also shown that in the absence of a stationary cosmological event horizon in the asymptotic region, a stationary black-hole horizon can support a nontrivial Brans-Dicke hair. Even more importantly, it is shown next that the presence of a stationary cosmological event horizon rules out any regular stationary solution, appropriate for the description of a star. Thus, to describe a star one has to assume that there is no such stationary horizon in the faraway asymptotic region. Under this implicit assumption generic spherical cosmic structures are studied perturbatively and it is shown that only for ? >0 or ? ?-5 their predicted maximum sizes are consistent with observations. We also point out how, many of the conclusions of this work differ qualitatively from the ? =0 spacetimes.

  16. Classical and Quantum Solutions in Brans-Dicke Cosmology with a Perfect Fluid

    E-print Network

    Paliathanasis, Andronikos; Basilakos, Spyros; Barrow, John D

    2015-01-01

    We consider the application of group invariant transformations in order to constrain a flat isotropic and homogeneous cosmological model, containing of a Brans-Dicke scalar field and a perfect fluid with a constant equation of state parameter $w$, where the latter is not interacting with the scalar field in the gravitational action integral. The requirement that the Wheeler-DeWitt equation be invariant under one-parameter point transformations provides us with two families of power-law potentials for the Brans-Dicke field, in which the powers are functions of the Brans-Dicke parameter $\\omega_{BD}$ and the parameter $w$. The existence of the Lie symmetry in the Wheeler-DeWitt equation is equivalent to the existence of a conserved quantity in field equations and with oscillatory terms in the wavefunction of the universe. This enables us to solve the field equations. For a specific value of the conserved quantity, we find a closed-form solution for the Hubble factor, which is equivalent to a cosmological model ...

  17. A Look at the Abandoned Contributions to Cosmology of Dirac, Sciama and Dicke

    E-print Network

    Alexander Unzicker

    2008-12-16

    The separate contributions to cosmology of the above researchers are revisited and a cosmology encompassing their basic ideas is proposed. We study Dirac's article on the large number hypothesis (1938), Sciama's proposal of realizing Mach's principle (1953), and Dicke's considerations (1957) on a flat-space representation of general relativity with a variable speed of light (VSL). Dicke's tentative theory can be formulated in a way which is compatible with Sciama's hypothesis on the gravitational constant G. Additionally, such a cosmological model is shown to satisfy Dirac's second `large number' hypothesis on the total number of particles in the universe being proportional to the square of the epoch. In the same context, Dirac's first hypothesis on an epoch-dependent G-contrary to his prediction- does not necessarily produce a visible time dependence of G. While Dicke's proposalreproduces the classical tests of GR in first approximation, the cosmological redshift is described by a shortening of measuring rods rather than an expansion of space. Since the temporal evolution of the horizon R is governed by \\dot R(t) =c(t), the flatness and horizon problems do not arise in the common form.

  18. Temperature Dependence of Henry’s Law Constant for Hydrogen Cyanide. Generation of Trace Standard Gaseous Hydrogen Cyanide

    PubMed Central

    Ma, Jian; Blackledge, William; Boss, Gerry R.

    2010-01-01

    Primary data for the temperature dependent solubility of HCN in water do not presently exist for low concentrations of HCN at environmentally or physiologically relevant temperatures. Henry’s Law constant (KH, M/atm) for the vapor-solution equilibrium of HCN was determined in 0.1 M sodium phosphate buffer (adjusted to pH 9.00±0.03 at 296.6±0.1 K) from 287–311 K. Stable gas phase concentrations of HCN are generated by established techniques, via air equilibration of aqueous cyanide partitioned by a microporous membrane. The effluent gaseous HCN, in equilibrium with the constant temperature aqueous cyanide, was collected in dilute NaOH and determined by a spectrophotometrically using cobinamide. The KH of HCN may be expressed as ln KH (M/atm) = (8205.7±341.9)/T ? (25.323±1.144); r2 = 0.9914) where T is the absolute temperature in K. This corresponds to 9.02 and 3.00 M/atm at 25 and 37.4 °C, respectively, compared to actual measurements of 9.86 and 3.22 at 25.0 and 37.8 °C, respectively. The technique also allows for convenient generation of trace levels of HCN at ppbv-ppmv levels that can be further diluted. PMID:20302333

  19. Pathways of Barotrauma in Juvenile Salmonids Exposed to Simulated Hydroturbine Passage: Boyle’s Law vs. Henry’s Law

    SciTech Connect

    Brown, Richard S.; Pflugrath, Brett D.; Colotelo, Alison HA; Brauner, Colin J.; Carlson, Thomas J.; Deng, Zhiqun; Seaburg, Adam

    2012-06-01

    On their seaward migration, juvenile salmonids commonly pass hydroelectric dams. Fish passing by the turbine blade may experience rapid decompression, the severity of which can be highly variable and may result in a number of barotraumas. The mechanisms of these injuries can be due to expansion of existing bubbles or gases coming out of solution; governed by Boyle’s Law and Henry’s Law, respectively. This paper combines re-analysis of published data with new experiments to gain a better understanding of the mechanisms of injury and mortality for fish experiencing rapid decompression associated with hydroturbine passage. From these data it appears that the majority of decompression related injuries are due to the expansion of existing bubbles in the fish, particularly the expansion and rupture of the swim bladder. This information is particularly useful for fisheries managers and turbine manufacturers, demonstrating that reducing the rate of swim bladder ruptures by reducing the frequency of occurrence and severity of rapid decompression during hydroturbine passage could reduce the rates of injury and mortality for hydroturbine passed juvenile salmonids.

  20. W.E. Henry Symposium compendium: The importance of magnetism in physics and material science

    SciTech Connect

    Carwell, H.

    1997-09-19

    This compendium contains papers presented at the W. E. Henry Symposium, The Importance of Magnetism in Physics and Material Science. The one-day symposium was conducted to recognize the achievements of Dr. Warren Elliot Henry as educator, scientist, and inventor in a career spanning almost 70 years. Dr. Henry, who is 88 years old, attended the symposium. Nobel Laureate, Dr. Glenn Seaborg, a friend and colleague for over 40 years, attended the event and shared his personal reminiscences. Dr. Seaborg is Associate Director-At-Large at the Lawrence Berkeley National Laboratory. The Compendium begins with three papers which demonstrate the ongoing importance of magnetism in physics and material science. Other contributions cover the highlights of Dr. Henry`s career as a researcher, educator, and inventor. Colleagues and former students share insights on the impact of Dr. Henry`s research in the field of magnetism, low temperature physics, and solid state physics; his influence on students as an educator; and his character, intellect and ingenuity, and passion for learning and teaching. They share a glimpse of the environment and times that molded him as a man, and the circumstances under which he made his great achievements despite the many challenges he faced.

  1. Emily Dickinson's ophthalmic consultation with Henry Willard Williams, MD.

    PubMed

    Blanchard, Donald L

    2012-12-01

    Emily Dickinson is one of America's premier poets of the 19th century. Henry Willard Williams, MD, was one of the very first physicians to limit his practice to ophthalmology and was the established leader in his field in Boston, Massachusetts. They met during the time of the Civil War, when Emily consulted him about her ophthalmic disorder. No records of the diagnosis survive. Photophobia, aching eyes, and a restriction in her ability to work up close were her main symptoms. Iritis, exotropia, or psychiatric problems are the most frequent diagnoses offered to explain her difficulties. Rather than attempt a definitive conclusion, this article will offer an additional possibility that Dr Williams likely considered (ie, hysterical hyperaesthesia of the retina). This was a common diagnosis at that time, although it has currently faded from use. PMID:23229703

  2. Henry Cavendish and the density of the earth

    NASA Astrophysics Data System (ADS)

    Lally, Sean P.

    1999-01-01

    From the fall of 1797 through the spring of 1798, Henry Cavendish performed a series of experiments, which now bear his name, that were aimed at determining the density of Earth. While Cavendish is rightfully considered a brilliant experimenter by many historians, he is often credited (in both popular and historical literature) as the scientist who first accurately weighed the Earth and determined the universal constant of gravitation, G. While the universal constant of gravitation and the mass (or weight) of the Earth can indeed be calculated from the density of the Earth, this was neither Cavendish's result nor his intent in writing "Experiments to Determine the Density of the Earth." Rather, Cavendish's interest lies in solving an eighteenth-century dispute: what is the mean density of the Earth?

  3. Henry More and the development of absolute time.

    PubMed

    Thomas, Emily

    2015-12-01

    This paper explores the nature, development and influence of the first English account of absolute time, put forward in the mid-seventeenth century by the 'Cambridge Platonist' Henry More. Against claims in the literature that More does not have an account of time, this paper sets out More's evolving account and shows that it reveals the lasting influence of Plotinus. Further, this paper argues that More developed his views on time in response to his adoption of Descartes' vortex cosmology and cosmogony, providing new evidence of More's wider project to absorb Cartesian natural philosophy into his Platonic metaphysics. Finally, this paper argues that More should be added to the list of sources that later English thinkers - including Newton and Samuel Clarke - drew on in constructing their absolute accounts of time. PMID:26568082

  4. Transcriptomic Response to Nitric Oxide Treatment in Larix olgensis Henry

    PubMed Central

    Hu, Xiaoqing; Yang, Jingli; Li, Chenghao

    2015-01-01

    Larix olgensis Henry is an important coniferous species found in plantation forests in northeastern China, but it is vulnerable to pathogens. Nitric oxide (NO) is an important molecule involved in plant resistance to pathogens. To study the regulatory role of NO at the transcriptional level, we characterized the transcriptomic response of L. olgensis seedlings to sodium nitroprusside (SNP, NO donor) using Illumina sequencing and de novo transcriptome assembly. A significant number of putative metabolic pathways and functions associated with the unique sequences were identified. Genes related to plant pathogen infection (FLS2, WRKY33, MAPKKK, and PR1) were upregulated with SNP treatment. This report describes the potential contribution of NO to disease resistance in L. olgensis as induced by biotic stress. Our results provide a substantial contribution to the genomic and transcriptomic resources for L. olgensis, as well as expanding our understanding of the involvement of NO in defense responses at the transcriptional level. PMID:26633380

  5. Transcriptomic Response to Nitric Oxide Treatment in Larix olgensis Henry.

    PubMed

    Hu, Xiaoqing; Yang, Jingli; Li, Chenghao

    2015-01-01

    Larix olgensis Henry is an important coniferous species found in plantation forests in northeastern China, but it is vulnerable to pathogens. Nitric oxide (NO) is an important molecule involved in plant resistance to pathogens. To study the regulatory role of NO at the transcriptional level, we characterized the transcriptomic response of L. olgensis seedlings to sodium nitroprusside (SNP, NO donor) using Illumina sequencing and de novo transcriptome assembly. A significant number of putative metabolic pathways and functions associated with the unique sequences were identified. Genes related to plant pathogen infection (FLS2, WRKY33, MAPKKK, and PR1) were upregulated with SNP treatment. This report describes the potential contribution of NO to disease resistance in L. olgensis as induced by biotic stress. Our results provide a substantial contribution to the genomic and transcriptomic resources for L. olgensis, as well as expanding our understanding of the involvement of NO in defense responses at the transcriptional level. PMID:26633380

  6. Calmodulin Involvement in Stress-Activated Nuclear Localization of Albumin in JB6 Epithelial Cells.

    SciTech Connect

    Weber, Thomas J.; Negash, Sewite; Smallwood, Heather S.; Ramos, Kenneth S.; Thrall, Brian D.; Squier, Thomas C.

    2004-06-15

    We report that in response to oxidative stress, albumin is translocated to the nucleus where it binds in concert with known transcription factors to an antioxidant response element (ARE), which controls the expression of glutathione-S-transferase and other antioxidant enzymes, functioning to mediate adaptive cellular responses. To investigate the mechanisms underlying this adaptive cell response, we have identified linkages between calcium signaling and the nuclear translocation of albumin in JB6 epithelial cells. Under resting conditions, albumin and the calcium regulatory protein, calmodulin (CaM), co-immunoprecipitate using antibodies against either protein, indicating a tight association. Calcium activation of CaM disrupts the association between CaM and albumin, suggesting that transient increases in cytosolic calcium levels function to mobilize intracellular albumin to facilitate its translocation into the nucleus. Likewise, nuclear translocation of albumin is induced by exposure of cells to hydrogen peroxide or a phorbol ester, indicating a functional linkage between reactive oxygen species, calcium, and PKC-signaling pathways. Inclusion of an antioxidant enzyme (i.e., superoxide dismutase) blocks nuclear translocation, suggesting that the oxidation of sensitive proteins functions to coordinate the adaptive cellular response. These results suggest that elevated calcium transients, and associated increases in reactive oxygen species, contribute to adaptive cellular responses through the mobilization and nuclear translocation of cellular albumin to mediate the transcriptional regulation of antioxidant responsive elements.

  7. HABS DC,WASH,515A (sheet 1 of 4) Captain Henry Saunders ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    HABS DC,WASH,515A- (sheet 1 of 4) - Captain Henry Saunders House, Virginia Room, National Museum of American History, Smithsonian Institution (moved from VA, Windsor vicinity, U.S. Route 460), Washington, District of Columbia, DC

  8. Henry H. Wheeler Jr. Brain Imaging Center Research Day 2014 Highlights

    E-print Network

    Walker, Matthew P.

    Henry H. Wheeler Jr. Brain Imaging Center Research Day 2014 Highlights Thursday, January 8, 2015 in healthy older adults Bryce Mander (Walker lab) [5 minute stretch break] 11:15 "The enigma of intermediate

  9. Henry H. Wheeler Jr. Brain Imaging Center Research Day 2010 Highlights

    E-print Network

    Walker, Matthew P.

    Henry H. Wheeler Jr. Brain Imaging Center Research Day 2010 Highlights Friday, December 10, 2010 forget and remember human memories Jared Saletin (Walker lab) 12.05 Assessing top-down modulation using

  10. Henry H. Wheeler Jr. Brain Imaging Center Research Day 2012 Highlights

    E-print Network

    Walker, Matthew P.

    Henry H. Wheeler Jr. Brain Imaging Center Research Day 2012 Highlights Thursday, January 17, 2013 disruption: A novel pathway contributing to cognitive decline?" Bryce Mander (Walker lab) [5 minute stretch

  11. Henry H. Wheeler Jr. Brain Imaging Center Research Day 2007 Highlights

    E-print Network

    Walker, Matthew P.

    Henry H. Wheeler Jr. Brain Imaging Center Research Day 2007 Highlights Monday, December 10th, 2007 to remodel the brain and regulate emotion, Matt Walker 9.50 Fluid reasoning ability: Neural underpinnings

  12. The 2015 Henry R. and Gladys V. Irons Lecture in Physics and Astronomy

    E-print Network

    Gustafsson, Torgny

    The 2015 Henry R. and Gladys V. Irons Lecture in Physics and Astronomy The Irons Lectures are free, a host of powerful telescopes in space and on the ground have revealed our cosmic past how the Galaxy

  13. Distances in random graphs with infinite mean degrees Henri van den Esker

    E-print Network

    Hooghiemstra, Gerard

    Distances in random graphs with infinite mean degrees Henri van den Esker , Remco van der Hofstad, Mathematics and Computer Science, P.O. Box 5031, 2600 GA Delft, The Netherlands. E-mail: H.vandenEsker

  14. Seeking the sabbath of life: figuring the theological self after Michel Henry 

    E-print Network

    Rivera, Joseph Manuel

    2013-07-05

    This thesis introduces and examines the work of French philosopher Michel Henry with particular focus on his phenomenological-theological analyses of the self. Given its thematic emphasis, the thesis incorporates several ...

  15. HENRY'S FORK AND SNAKE RIVER BASIN, IDAHO - WATER QUALITY REPORT, 1973

    EPA Science Inventory

    Reported problems in the Henrys Fork and Snake River Basin (17040202, 17040203, 17040201) include bacteria levels exceeding water quality standards, dissolved oxygen standards violations, and excessive algal blooms resulting in aesthetic problems and contributing to DO depression...

  16. The Henry's law coefficient of 2-nitrophenol over the temperature range 278–303 K 

    E-print Network

    Heal, Mathew R

    2001-01-01

    Although 2-nitrophenol has been identified as an important environmental chemical there is scarcity in the literature regarding the temperature dependence of its Henry's law coefficient, H. Here a bubble purge method was ...

  17. Architecture and urbanism in Henri IV's Paris : the Place Royale, Place Dauphine, and Hôpital St. Louis

    E-print Network

    Ballon, Hilary Meg

    1985-01-01

    This dissertation concerns the extensive building program which Henri IV undertook in Paris from 1600 to 1610. Focusing on the place Royale (now called the place des Vosges) , the place Dauphine, rue Dauphine, and Pont ...

  18. 78 FR 8682 - Culturally Significant Objects Imported for Exhibition Determinations: “Henri Labrouste...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-06

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF STATE Culturally Significant Objects Imported for Exhibition Determinations: ``Henri Labrouste: Structure Brought to Light'' SUMMARY: Notice is hereby given of the following determinations: Pursuant to the...

  19. "Art is a Hardy Plant:" : Benjamin Henry Latrobe and the cultivation of a transitional aesthetics

    E-print Network

    Chuong, Jennifer Y

    2012-01-01

    This thesis suggests that architect Benjamin Henry Latrobe's engagement with American scientific discourses gave rise to a transitional aesthetics that radically refigured his European-derived notions of art and architecture. ...

  20. Revisiting the VLAD image representation Jonathan Delhumeau , Philippe-Henri Gosselin , Herv Jgou and Patrick Prez

    E-print Network

    Gosselin, Philippe-Henri

    Revisiting the VLAD image representation Jonathan Delhumeau , Philippe-Henri Gosselin , Hervé Jégou and Patrick Pérez· : INRIA Rennes · : Technicolor R&I, Rennes ABSTRACT Recent works on image retrieval have

  1. Design and construction techniques of an American vernacular architect : the work of Dr. Henry Chapman Mercer

    E-print Network

    Eichenberger, Kurt Frederick

    1982-01-01

    The design and building process of Dr. Henry Chapman Mercer is explored for its relationship to vernacular design. The vehicle for this exploration is 'Fonthill,' the home of Dr. Mercer constructed by him in 1908. Complete ...

  2. Mythologies of an American everyday landscape : Henry Ford at the Wayside Inn

    E-print Network

    Wortham, Brooke Danielle

    2006-01-01

    Ford purchased property in 1923 in Sudbury, Massachusetts in order to preserve an historic inn associated with the poet Henry Wadsworth Longfellow. Over the next twenty years, his mission expanded to create an idealized ...

  3. UNIVERSITY OF CALIFORNIA HENRY SAMUELI SCHOOL OF ENGINEERING AND APPLIED SCIENCE

    E-print Network

    Kodambaka, Suneel

    UNIVERSITY OF CALIFORNIA HENRY SAMUELI SCHOOL OF ENGINEERING AND APPLIED SCIENCE Instruction Hazard Assessment and Personal Protective Equipment Use 3) Chemical Use Hazards It is your responsibility SCIENCE KEY REQUEST FORM Requester Name _______________________________ EMAIL

  4. Large Dynamical System Analysis for Anisotropic Universe in Brans-Dicke Theory

    E-print Network

    Jhumpa Bhadra; Shuvendu Chakraborty; Ujjal Debnath

    2011-12-27

    In this work, we have studied the Brans-Dicke (BD) cosmology in anisotropic models. We present three dimensional dynamical system describing the evolution of anisotropic models containing perfect fluid and BD scalar field with self-interacting potential. The relevant equations have been transformed into the dynamical system. The critical points and the corresponding eigen values have been found in radiation, dust, dark energy, $\\Lambda$CDM and phantom phases of the universe. The natures and the stability around the critical points have also been investigated.

  5. Extended JC-Dicke model for a two-component atomic BEC inside a cavity

    E-print Network

    Yong Li; Peng Zhang; Z. D. Wang

    2010-02-25

    We consider a trapped two-component atomic Bose-Einstein condensate (BEC), where each atom with three energy-levels is coupled to an optical cavity field and an external classical optical field as well as a microwave field to form the so-called $\\Delta$-type configuration. After adiabatically eliminating the atomic excited state, an extended JC-Dicke model is derived under the rotating-wave approximation. The scaled ground-state energy and the phase diagram of this model Hamiltonian are investigated in the framework of mean-field approach. A new phase transition is revealed when the amplitude of microwave field changes its sign.

  6. Exact solutions of Brans-Dicke cosmology and the cosmic coincidence problem

    E-print Network

    S. Carneiro; A. E. Montenegro Jr

    2005-10-28

    We present some cosmological solutions of Brans-Dicke theory, characterized by a decaying vacuum energy density and by a constant relative matter density. With these features, they shed light on the cosmological constant problems, leading to a presently small vacuum term, and to a constant ratio between the vacuum and matter energy densities. By fixing the only free parameter of our solutions, we obtain cosmological parameters in accordance with observations of the relative matter density, the universe age and redshift-distance relations.

  7. Long-lived mesoscopic entanglement outside the Lamb-Dicke regime

    E-print Network

    M. J. McDonnell; J. P. Home; D. M. Lucas; G. Imreh; B. C. Keitch; D. J. Szwer; N. R. Thomas; S. C. Webster; D. N. Stacey; A. M. Steane

    2006-11-02

    We create entangled states of the spin and motion of a single $^{40}$Ca$^+$ ion in a linear ion trap. The motional part consists of coherent states of large separation and long coherence time. The states are created by driving the motion using counterpropagating laser beams. We theoretically study and experimentally observe the behaviour outside the Lamb-Dicke regime, where the trajectory in phase space is modified and the coherent states become squeezed. We directly observe the modification of the return time of the trajectory, and infer the squeezing. The mesoscopic entanglement is observed up to $\\Delta \\alpha = 5.1$ with coherence time 170 microseconds and mean phonon excitation $\

  8. Attractors, statefinders and observational measurement for chameleonic Brans-Dicke cosmology

    SciTech Connect

    Farajollahi, Hossein; Salehi, Amin E-mail: a.salehi@guilan.ac.ir

    2010-11-01

    We investigate chameleonic Brans-Dicke model applied to the FRW universes. A framework to study stability and attractor solutions in the phase space is developed for the model. We show that depending on the matter field and stability conditions, it is possible to realize phantom-like behavior without introducing phantom filed in the model while the stability is fulfilled and phantom crossing occurs. The statefinder parameters to the model for different kinds of matter interacting with the chameleon scalar field are studied. We also compare our model with present day observations.

  9. Propagation of quantum particles in Brans-Dicke spacetime: The case of gamma ray bursts

    NASA Astrophysics Data System (ADS)

    Capozziello, Salvatore; Lambiase, Gaetano

    2015-06-01

    The propagation of boson particles in a gravitational field described by the Brans-Dicke (BD) theory of gravity is analyzed. We derive the wave function of the scalar particles, and the effective potential experienced by the quantum particles considering the role of the varying gravitational coupling. Besides, we calculate the probability to find the scalar particles near the region where a naked singularity is present. The extremely high energy radiated in such a situation could account for the huge emitted power observed in gamma ray bursts (GRBs).

  10. Big-bang nucleosynthesis in Brans-Dicke cosmology with a varying $?$ term related to WMAP

    E-print Network

    R. Nakamura; M. Hashimoto; S. Gamow; K. Arai

    2005-09-05

    We investigate the big-bang nucleosynthesis in a Brans-Dicke model with a varying $\\Lambda$ term using the Monte-Carlo method and likelihood analysis. It is found that the cosmic expansion rate differs appreciably from that of the standard model. The produced abundances of $^4$He, D, and barely Li are consistent with the observed ones within the uncertainties in nuclear reaction rates when the baryon to photon ratio $\\eta = (5.47 - 6.64)\\times 10^{-10}$, which is in agreement with the value deduced from WMAP.

  11. Comment on "Exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo"

    NASA Astrophysics Data System (ADS)

    García-Mata, Ignacio; Roncaglia, Augusto J.; Wisniacki, Diego A.

    2015-03-01

    In a recent paper [Phys. Rev. E 90, 022920 (2014), 10.1103/PhysRevE.90.022920] a study of the ground-state fidelity of the Dicke model as a function of the coupling parameter is presented. Abrupt jumps of the fidelity in the superradiant phase are observed and are assumed to be related to the transition to chaos. We show that this conclusion results from a misinterpretation of the numerics. In fact, if the parity symmetry is taken into account, the unexpected jumps disappear.

  12. Self-gravitating spherically symmetric fluid models in Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, M.; Manzoor, Rubab

    2015-09-01

    This paper is devoted to study self-gravitating spherically symmetric fluid models in Brans-Dicke gravity. We formulate a set of equations which govern the dynamics of evolving gravitating fluids through Weyl tensor, shear tensor, expansion scalar, anisotropy, energy inhomogeneity, dissipation as well as scalar field. We also discuss some particular cases according to different dynamical conditions. It is concluded that fluid models for regular distribution of scalar field are consistent with general relativity and models due to irregular distribution of scalar field deviate from theory of general relativity.

  13. PPN Parameter $?$ and Solar System Constraints of Massive Brans-Dicke Theories

    E-print Network

    L. Perivolaropoulos

    2010-01-19

    Previous solar system constraints of the Brans-Dicke (BD) parameter $\\omega$ have either ignored the effects of the scalar field potential (mass terms) or assumed a highly massive scalar field. Here, we interpolate between the above two assumptions and derive the solar system constraints on the BD parameter $\\omega$ for {\\it any} field mass. We show that for $\\omega=O(1)$ the solar system constraints relax for a field mass $m \\gsim 20 \\times m_{AU}= 20\\times 10^{-27}GeV$.

  14. Behaviour of Brans-Dicke parameter in generalised chameleon cosmology with Kantowski-Sachs space-time

    NASA Astrophysics Data System (ADS)

    Satish, J.; Venkateswarlu, R.

    2014-12-01

    In this paper we consider chameleonic generalized Brans-Dicke cosmology in the framework of Kantwoski-Sacks universes. We investigate the time dependence of the Brans-Dicke parameter ?( t) for an expanding Universe, and obtain an explicit dependence of ?( t) in different expansion phases of the Universe. Here we take the power law form of the scale factor. The behaviour of ?( t) is studied for matter-dominated, vacuum-energy-dominated universe, radiation-dominated and mass-less scalar-field-dominated era. It is also proposed to study the nature of the deceleration parameter.

  15. A review of "Full of Soup and Gold: The Life of Henry Jermyn" by Anthony Adolph 

    E-print Network

    Maureen E. Mulvihill

    2007-01-01

    ) membership included Sir Francis Bacon, Elias Ashmole, Sir John Denham, Sir Christopher Wren, Inigo Jones, Sir Robert Moray, George Villiers second Duke of Buckingham, Thomas (Savage) third Earl Rivers, Henry (Bennet) first Earl of Arlington, Charles II, et... named in the volume?s Ac- 108 SEVENTEENTH-CENTURY NEWS Henry Jermyn (Germain), first Earl of St Alban (baptized 1605, died 1684). Principal Stuart Statesman & Courtier. Knight of the Garter Portrait (investiture, 1672) by Sir Peter Lely. Kedleston...

  16. Henry's voices: the representation of auditory verbal hallucinations in an autobiographical narrative.

    PubMed

    Demjén, Zsófia; Semino, Elena

    2015-06-01

    The book Henry's Demons (2011) recounts the events surrounding Henry Cockburn's diagnosis of schizophrenia from the alternating perspectives of Henry himself and his father Patrick. In this paper, we present a detailed linguistic analysis of Henry's first-person accounts of experiences that could be described as auditory verbal hallucinations. We first provide a typology of Henry's voices, taking into account who or what is presented as speaking, what kinds of utterances they produce and any salient stylistic features of these utterances. We then discuss the linguistically distinctive ways in which Henry represents these voices in his narrative. We focus on the use of Direct Speech as opposed to other forms of speech presentation, the use of the sensory verbs hear and feel and the use of 'non-factive' expressions such as I thought and as if. We show how different linguistic representations may suggest phenomenological differences between the experience of hallucinatory voices and the perception of voices that other people can also hear. We, therefore, propose that linguistic analysis is ideally placed to provide in-depth accounts of the phenomenology of voice hearing and point out the implications of this approach for clinical practice and mental healthcare. PMID:25505160

  17. N. Jb. Miner. Abh. 2008, Vol. 184/3, p. 243253, Stuttgart, March 2008, published online 2008

    E-print Network

    Ma, Chi

    , vanadium-bearing, magnesium-rich tourmaline from the mountain Weinberg, approximately 500 m west that these tourmaline samples are vanadium-bearing. From the same locality, Hughes et al. (Submitted) described V-rich 2%). Hawthorne & Henry (1999) gave the general chem- ical formula of the tourmaline-group minerals as X Y3 Z6 [T6

  18. Antibacterial Activity of Pseudonocardia sp. JB05, a Rare Salty Soil Actinomycete against Staphylococcus aureus

    PubMed Central

    Jafari, Nesa; Behroozi, Reza; Farajzadeh, Davoud; Farsi, Mohammad; Akbari-Noghabi, Kambiz

    2014-01-01

    Staphylococcus aureus is a Gram-positive bacterium that causes many harmful and life-threatening diseases. Some strains of this bacterium are resistant to available antibiotics. This study was designed to evaluate the ability of indigenous actinomycetes to produce antibacterial compounds against S. aureus and characterize the structure of the resultant antibacterial compounds. Therefore, a slightly modified agar well diffusion method was used to determine the antibacterial activity of actinomycete isolates against the test microorganisms. The bacterial extracts with antibacterial activity were fractionated by silica gel and G-25 sephadex column chromatography. Also, the active fractions were analyzed by thin layer chromatography. Finally, the partial structure of the resultant antibacterial compound was characterized by Fourier transform infrared spectroscopy. One of the isolates, which had a broad spectrum and high antibacterial activity, was designated as Pseudonocardia sp. JB05, based on the results of biochemical and 16S rDNA gene sequence analysis. Minimum inhibitory concentration for this bacterium was 40?AU?mL?1 against S. aureus. The antibacterial activity of this bacterium was stable after autoclaving, 10% SDS, boiling, and proteinase K. Thin layer chromatography, using anthrone reagent, showed the presence of carbohydrates in the purified antibacterial compound. Finally, FT-IR spectrum of the active compound illustrated hydroxyl groups, hydrocarbon skeleton, and double bond of polygenic compounds in its structure. To the best of our knowledge, this is the first report describing the efficient antibacterial activity by a local strain of Pseudonocardia. The results presented in this work, although at the initial stage in bioactive product characterization, will possibly contribute toward the Pseudonocardia scale-up for the production and identification of the antibacterial compounds. PMID:25202705

  19. Cosmological constraints on ghost dark energy in the Brans-Dicke theory by using MCMC approach

    NASA Astrophysics Data System (ADS)

    Alavirad, Hamzeh; Sheykhi, Ahmad

    2014-06-01

    By using a Markov Chain Monte Carlo simulation, we investigate cosmological constraints on the ghost dark energy (GDE) model in the framework of the Brans-Dicke (BD) theory. A combination of the latest observational data of the cosmic microwave background radiation data from seven-year WMAP, the baryon acoustic oscillation data form the SDSS, the supernovae type Ia data from the Union2 and the X-ray gas mass fraction data from the Chandra X-ray observations of the largest relaxed galaxy clusters are used to perform constraints on GDE in the BD cosmology. In this paper, we consider both flat and non-flat universes together with interaction between dark matter and dark energy. The main cosmological parameters are obtained as: ?bh2=0.0223-0.0013+0.0016, ?ch2=0.1149-0.0104+0.0088 and ?k=0.0005-0.0073+0.0025. In addition, the Brans-Dicke parameter ? is estimated as 1/??0.002.

  20. Interacting new agegraphic dark energy in nonflat Brans-Dicke cosmology

    SciTech Connect

    Sheykhi, Ahmad

    2010-01-15

    We construct a cosmological model of late acceleration based on the new agegraphic dark energy model in the framework of Brans-Dicke cosmology where the new agegraphic energy density {rho}{sub D}=3n{sup 2}m{sub p}{sup 2}/{eta}{sup 2} is replaced with {rho}{sub D}=3n{sup 2{phi}2}/(4{omega}{eta}{sup 2}). We show that the combination of the Brans-Dicke field and agegraphic dark energy can accommodate a w{sub D}=-1 crossing for the equation of state of noninteracting dark energy. When an interaction between dark energy and dark matter is taken into account, the transition of w{sub D} to the phantom regime can be more easily accounted for than when we resort to the Einstein field equations. In the limiting case {alpha}=0 ({omega}{yields}{infinity}), all previous results of the new agegraphic dark energy in Einstein gravity are restored.

  1. Quark-hadron phase transition in Brans-Dicke brane gravity

    E-print Network

    K. Atazadeh; A. M. Ghezelbash; H. R. Sepangi

    2011-03-01

    A standard picture in cosmology has been emerging over the past decade in which a phase transition, associated with chiral symmetry breaking after the electroweak transition, has occurred at approximately $10^{-6}$ seconds after the Big Bang to convert a plasma of free quarks and gluons into hadrons. In this paper, we consider the quark-hadron phase transition in a Brans-Dicke brane world scenario within an effective model of QCD. We study the evolution of the physical quantities relevant to quantitative description of the early universe, namely, the energy density, temperature and the scale factor before, during, and after the phase transition. We show that for different values of the Brans-Dicke coupling, $\\omega$, phase transition occurs and results in decreasing the effective temperature of the quark-gluon plasma and of the hadronic fluid. We then move on to consider the quark-hadron transition in the smooth crossover regime at high and low temperatures and show that such a transition occurs and results in decreasing the effective temperature of the quark-gluon plasma during the process of quark-hadron phase transition.

  2. Dilatonic Brans-Dicke Anisotropic Collapsing Fluid Sphere And de Broglie Quantum Wave Motion

    E-print Network

    Hossein Ghaffarnejad

    2014-12-18

    Two dimensional analogue of vacuum sector of the Brans Dicke gravity [1] is studied to obtain dynamics of anisotropic spherical symmetric perfect fluid. Solutions of dynamical field equations are obtained in terms of time and radial coordinates. In static regime the obtained solutions leads to a dark matter fluid with state equation $\\gamma=\\frac{p(\\rho)}{\\varrho}=-0.25.$ For non-static regime the fluid can be treat as a regular matter with positive barotropic index $\\gamma>0.$ Evaluation of total mass of the fluid leads to choose particular values on the Brans Dick parameter as $\\omega>\\frac{2}{3};\\omegaevent and apparent) of the collapsing fluid are obtained in its static regime. In case $\\omega>0$ the apparent horizon is covered by event horizon and hence the cosmic censorship hypothesis is still maintained as valid. \\\\ In second part of the paper we obtain de Broglie pilot wave of our fluid model. It can be describe particles ensemble which are distinguished from each other by $\\omega.$ Incident current density of particles ensemble is evaluated on the event and apparent horizon describing the `Hawking radiation` in statistical mechanics perspective. The quantum potential is calculated on the event horizon which is independent from $\\omega$ but the evaluated quantum potential on the apparent horizon is depended to particular value of $\\omega$.

  3. Spherically symmetric thin shells in Brans-Dicke theory of gravity

    NASA Astrophysics Data System (ADS)

    Letelier, Patricio S.; Wang, Anzhong

    1993-07-01

    The dynamics of spherically symmetric thin shells (or bubbles) is studied in the framework of the Brans-Dicke theory of gravity, using the Newman-Penrose formalism. The Brans-Dicke (BD) gravitational field equations on the bubble wall are given explicitly in terms of the discontinuities of the metric coefficients and the BD scalar field. Consequently, once the space-time geometry outside of the wall is given, these equations, together with the equation of state of the wall, uniquely determine the motion of the bubble. Using the ``generalized'' Bianchi identities, the interaction of a bubble with gravitational and matter fields is investigated. In particular, it is found that a bubble does not interact with an electromagnetic field, but it does with a scalar field or a fluid. The attraction and repulsion of a bubble are also studied. Exact solutions are constructed, and it is found that some of these solutions represent wormholes. However, these wormholes are different from the ones in Einstein's theory of gravity, in the sense that the throats of the wormholes are not necessarily built with ``exotic'' matter.

  4. Bose–Einstein condensation versus Dicke–Hepp–Lieb transition in an optical cavity

    SciTech Connect

    Piazza, Francesco; Strack, Philipp; Zwerger, Wilhelm

    2013-12-15

    We provide an exact solution for the interplay between Bose–Einstein condensation and the Dicke–Hepp–Lieb self-organization transition of an ideal Bose gas trapped inside a single-mode optical cavity and subject to a transverse laser drive. Based on an effective action approach, we determine the full phase diagram at arbitrary temperature, which features a bi-critical point where the transitions cross. We calculate the dynamically generated band structure of the atoms and the associated suppression of the critical temperature for Bose–Einstein condensation in the phase with a spontaneous periodic density modulation. Moreover, we determine the evolution of the polariton spectrum due to the coupling of the cavity photons and the atomic field near the self-organization transition, which is quite different above or below the Bose–Einstein condensation temperature. At low temperatures, the critical value of the Dicke–Hepp–Lieb transition decreases with temperature and thus thermal fluctuations can enhance the tendency to a periodic arrangement of the atoms. -- Highlights: •Atoms inside a driven cavity can undergo two transitions: self-organization and BEC. •The phase diagram has four phases which coexist at a bi-critical point. •Atom–cavity coupling creates a dynamical lattice for the atoms. •Finite temperature can enhance the tendency towards self-organization. •We calculate the detailed spectrum of the polaritonic excitations.

  5. Feature extraction in shared weights neural networks Dick de Ridder, Aarnoud Hoekstra and Robert P.W. Duin \\Lambda

    E-print Network

    van Vliet, Lucas J.

    Feature extraction in shared weights neural networks Dick de Ridder, Aarnoud Hoekstra and Robert P been numerous reports about shared weights neural net­ works: feed­forward networks performing very papers propose that the networks somehow extract local features from the image, combining them at deeper

  6. The Life and Times of Dick Ruggles: The Disappearance of the Squire's Ham and Other Village Stories

    E-print Network

    Lanham, Neil

    gamekeeping exploits including when loading he potted his governor’s pheasant after Royalty down the line had missed it and he still had enough guile to retain his job. Whose garden is it? The gardener’s or the governor’s? Lord Sainsbury, a man who Dick had...

  7. Derivation of conditions for a Brans-Dicke coupling constant of order unity be consistent with solar system bounds

    E-print Network

    Jean Paul Mbelek

    2013-04-30

    We provide proofs of some assumptions recently made by F. O. Minotti to conclude on the possibility that an additional scalar field minimally coupled to gravity may help to reconcile a Brans-Dicke coupling constant $\\omega$ of the order unity with solar system bounds.

  8. Genetic Analysis of the Henry Mountains Bison Herd

    PubMed Central

    du Toit, Johan T.; Derr, James

    2015-01-01

    Wild American plains bison (Bison bison) populations virtually disappeared in the late 1800s, with some remnant animals retained in what would become Yellowstone National Park and on private ranches. Some of these private bison were intentionally crossbred with cattle for commercial purposes. This forced hybridization resulted in both mitochondrial and nuclear introgression of cattle genes into some of the extant bison genome. As the private populations grew, excess animals, along with their history of cattle genetics, provided founders for newly established public bison populations. Of the US public bison herds, only those in Yellowstone and Wind Cave National Parks (YNP and WCNP) appear to be free of detectable levels of cattle introgression. However, a small free-ranging population (~350 animals) exists on public land, along with domestic cattle, in the Henry Mountains (HM) of southern Utah. This isolated bison herd originated from a founder group translocated from YNP in the 1940s. Using genetic samples from 129 individuals, we examined the genetic status of the HM population and found no evidence of mitochondrial or nuclear introgression of cattle genes. This new information confirms it is highly unlikely for free-living bison to crossbreed with cattle, and this disease-free HM bison herd is valuable for the long-term conservation of the species. This bison herd is a subpopulation of the YNP/WCNP/HM metapopulation, within which it can contribute significantly to national efforts to restore the American plains bison to more of its native range. PMID:26673758

  9. Genetic Analysis of the Henry Mountains Bison Herd.

    PubMed

    Ranglack, Dustin H; Dobson, Lauren K; du Toit, Johan T; Derr, James

    2015-01-01

    Wild American plains bison (Bison bison) populations virtually disappeared in the late 1800s, with some remnant animals retained in what would become Yellowstone National Park and on private ranches. Some of these private bison were intentionally crossbred with cattle for commercial purposes. This forced hybridization resulted in both mitochondrial and nuclear introgression of cattle genes into some of the extant bison genome. As the private populations grew, excess animals, along with their history of cattle genetics, provided founders for newly established public bison populations. Of the US public bison herds, only those in Yellowstone and Wind Cave National Parks (YNP and WCNP) appear to be free of detectable levels of cattle introgression. However, a small free-ranging population (~350 animals) exists on public land, along with domestic cattle, in the Henry Mountains (HM) of southern Utah. This isolated bison herd originated from a founder group translocated from YNP in the 1940s. Using genetic samples from 129 individuals, we examined the genetic status of the HM population and found no evidence of mitochondrial or nuclear introgression of cattle genes. This new information confirms it is highly unlikely for free-living bison to crossbreed with cattle, and this disease-free HM bison herd is valuable for the long-term conservation of the species. This bison herd is a subpopulation of the YNP/WCNP/HM metapopulation, within which it can contribute significantly to national efforts to restore the American plains bison to more of its native range. PMID:26673758

  10. A citation analysis of Henri Tajfel's work on intergroup relations.

    PubMed

    Dumont, Kitty; Louw, Johann

    2009-02-01

    The late Henri Tajfel (1919-1982) is one of the central figures who shaped the development of post-war European social psychology. His contributions range from the establishment of an infrastructure for a European social psychology, and the start of a new intellectual movement within social psychology, to the formulation of a set of concepts addressing intergroup relations that were finally integrated into Social Identity Theory. The present study provides an empirical examination of Tajfel's contribution to intergroup research over the last 30 years via a citation analysis of five journals: the Journal of Personality and Social Psychology, the British Journal of Social Psychology, the European Journal of Social Psychology, the South African Journal of Psychology, and the German Journal of Social Psychology (Zeitschrift für Sozialpsychologie). The results indicate that Tajfel's work on intergroup relations is increasingly cited, especially since the 1990s, and the international recognition of his work is substantial. Three possible reasons for the recognition his work still enjoys are proposed: its potential to generate theoretical and empirical controversies; its explanatory power; and the extent to which his work is used as a referential framework. PMID:22029442

  11. Henry Duret (1849-1921): a surgeon and forgotten neurologist.

    PubMed

    Walusinski, Olivier; Courrivaud, Philippe

    2014-01-01

    Henri Duret (1849-1921) was a surgeon whose training started in the laboratory of Jean-Martin Charcot and Alfred Vulpian at La Salpêtrière in 1874. Using injections of colored gelatine, Duret was the first to describe the distribution of supply arteries in the brainstem and then in the cortex. His descriptions correlated irrigated territories, infarcted zones and secondary neurological deficits. He focused his 1878 thesis on experimental studies of brain trauma and localized the origin of disturbances in autonomic function and vigilance to the brainstem. He linked these disturbances to microhemorrhages affecting the medulla and pons, which are now known as Duret hemorrhages. Over 40 years, he authored numerous publications on digestive and gynecological surgery and on teaching in these areas. In 1905, another of his innovative works was published, which covered brain tumours, their clinical manifestations, the pathophysiological consequences of intracranial hypertension and the corresponding surgical treatments. This little-known treatise is in fact a pioneering work in neurosurgery, published well before the more familiar works of Victor Horsley and Harvey Cushing. PMID:25227400

  12. John Mather Nobel Scholars Named Press Release 2008 July 21 from The Henry Foundation, Inc. http://henry.pha.jhu.edu/

    E-print Network

    Mather Nobel Scholarships by The Henry Foundation, Inc. The funding for the scholarships originated in a generous contribution from the John and Jane Mather Foundation for Science and the Arts, which in turn was funded from the award of the 2006 Nobel Prize for Physics to Dr. Mather. The awardees were selected

  13. John Mather Nobel Scholars Named Press Release: 2009 July 21 from The Henry Foundation, Inc. http://henry.pha.jhu.edu/

    E-print Network

    Mather Nobel Scholarships by The Henry Foundation, Inc. The funding for the scholarships originated in a generous contribution from the John and Jane Mather Foundation for Science and the Arts, which in turn was funded from the award of the 2006 Nobel Prize for Physics to Dr. Mather. The awardees were selected

  14. Gravitational collapse in Husain space-time for Brans-Dicke gravity theory with power-law potential

    NASA Astrophysics Data System (ADS)

    Rudra, Prabir; Biswas, Ritabrata; Debnath, Ujjal

    2014-12-01

    The motive of this work is to study gravitational collapse in Husain space-time in Brans-Dicke gravity theory. Among many scalar-tensor theories of gravity, Brans-Dicke is the simplest and the impact of it can be regulated by two parameters associated with it, namely, the Brans-Dicke parameter, ?, and the potential-scalar field dependency parameter n respectively. V. Husain's work on exact solution for null fluid collapse in 1996 has influenced many authors to follow his way to find the end-state of the homogeneous/inhomogeneous dust cloud. Vaidya's metric is used all over to follow the nature of future outgoing radial null geodesics. Detecting whether the central singularity is naked or wrapped by an event horizon, by the existence of future directed radial null geodesic emitted in past from the singularity is the basic objective. To point out the existence of positive trajectory tangent solution, both particular parametric cases (through tabular forms) and wide range contouring process have been applied. Precisely, perfect fluid's EoS satisfies a wide range of phenomena: from dust to exotic fluid like dark energy. We have used the EoS parameter k to determine the end state of collapse in different cosmological era. Our main target is to check low ? (more deviations from Einstein gravity-more Brans Dicke effect) and negative k zones. This particularly throws light on the nature of the end-state of collapse in accelerated expansion in Brans Dicke gravity. It is seen that for positive values of EoS parameter k, the collapse results in a black hole, whereas for negative values of k, naked singularity is the only outcome. It is also to be noted that "low ?" leads to the possibility of getting more naked singularities even for a non-accelerating universe.

  15. Agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers Local 1650, 1987-1990.

    ERIC Educational Resources Information Center

    Henry Ford Community Coll., Dearborn, MI.

    This collective bargaining agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers establishes conditions of employment for all full-time teachers, counselors, librarians, placement officers, and selected other professional personnel. The articles in the agreement set…

  16. Agreement Between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers, Local 1650, 1973-75.

    ERIC Educational Resources Information Center

    Henry Ford Community Coll., Dearborn, MI.

    This agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers, Local 1650 covers the period of 1973-1975. Contents of the agreement cover recognition, board of trustee rights, union-board relations, conditions of employment, seniority, the…

  17. The Works of Henry Moseley, 1887-1915

    NASA Astrophysics Data System (ADS)

    Scerri, Eric

    2013-04-01

    In 1913 Henry Moseley, an unknown young English physicist published an article in the Philosophical Magazine under the title of ``The High Frequency Spectra of the Elements.'' The 10-page article was to have far reaching implications in both chemistry and physics and helped to resolve a major conundrum in the periodic table of the elements. The talk will briefly examine the life and work of Moseley who died tragically while fighting in the trenches of World War I in 1915. The build-up to the discovery of atomic number took several different avenues including contributions from Rutherford and Barkla. However the more direct motivation for Moseley's work, as he readily acknowledged, were the articles of an unknown Dutch econometrician Anton Van den Broek who attempted to improve on Mendeleev's periodic table. Moseley began as a student of Rutherford at Manchester and took a keen interest in the development of research using X-rays following the work of Roentgen, von Laue and Bragg. Although Rutherford was at first reluctant to enter this new field he soon yielded to young Moseley's request and sent him to Leeds for brief training with Bragg. On returning to Manchester, Moseley devised an ingenious apparatus in which a set of metal samples could be rotated so as to become the target for a beam of electrons in order to measure the frequencies of the emitted K X-rays. The first set of such experiments used nine successive elements in the periodic table, from titanium to zinc. Moseley's now immense fame rests with the results of this study as well as a subsequent one which extended the study into a further 30 elements, in addition to the use that his method was put to by himself as well as subsequent chemists and physicists.

  18. Dick Winters 

    E-print Network

    Unknown

    2011-08-17

    CD4^(+) effector T cell subsets (e.g., Th1, Th17) are implicated in autoimmune and inflammatory disorders such as multiple sclerosis, psoriasis and rheumatoid arthritis. For optimal activation, IL-6 induces Th17 polarization and signals through...

  19. JOURNAL OF BACTERIOLOGY, Aug. 2009, p. 52245231 Vol. 191, No. 16 0021-9193/09/$08.00 0 doi:10.1128/JB.00085-09

    E-print Network

    Alvarez-Cohen, Lisa

    .1128/JB.00085-09 Copyright © 2009, American Society for Microbiology. All Rights Reserved. Investigation of Carbon Metabolism in "Dehalococcoides ethenogenes" Strain 195 by Use of Isotopomer and Transcriptomic Laboratory, Cyclotron Rd., Berkeley, California 947203 ; Section of Microbiology, Cornell University, Ithaca

  20. D. Tarapore and J.B. Mouret. Evolvability signatures of generative encodings: beyond standard perfor-mance benchmarks. Information Sciences, 2015 (in press).

    E-print Network

    the best evolvability signature, and was always foremost in recov- ering an effective gait following robotD. Tarapore and J.B. Mouret. Evolvability signatures of generative encodings: beyond standard perfor- mance benchmarks. Information Sciences, 2015 (in press). Evolvability signatures of generative

  1. JOURNAL OF BACTERIOLOGY, Dec. 2007, p. 87938800 Vol. 189, No. 24 0021-9193/07/$08.00 0 doi:10.1128/JB.01361-07

    E-print Network

    Singer, Mitchell

    of nutrients, the soil bacterium Myxococcus xanthus undergoes a complex developmental program leading.1128/JB.01361-07 Copyright © 2007, American Society for Microbiology. All Rights Reserved. The Myxococcus xanthus Developmental Program Can Be Delayed by Inhibition of DNA Replication Christopher J. Rosario

  2. JOURNAL OF BACTERIOLOGY, Dec. 2007, p. 84748483 Vol. 189, No. 23 0021-9193/07/$08.00 0 doi:10.1128/JB.00894-07

    E-print Network

    Singer, Mitchell

    for the landmark morphological events that occur during Myxococcus xanthus fruiting body development. Enhancer fruiting body development. In soil, vegetative swarms of Myxococcus xanthus feed on prey bacteria to obtain.1128/JB.00894-07 Copyright © 2007, American Society for Microbiology. All Rights Reserved. The Myxococcus

  3. JOURNAL OF BACTERIOLOGY, Nov. 2002, p. 62256234 Vol. 184, No. 22 0021-9193/02/$04.00 0 DOI: 10.1128/JB.184.22.62256234.2002

    E-print Network

    Church, George M.

    JOURNAL OF BACTERIOLOGY, Nov. 2002, p. 6225­6234 Vol. 184, No. 22 0021-9193/02/$04.00 0 DOI: 10.1128/JB.184.22.6225­6234.2002 Copyright © 2002, American Society for Microbiology. All Rights Reserved January 2002/Accepted 22 August 2002 To investigate the function of the EvgA response regulator, we

  4. JOURNAL OF BACTERIOLOGY, Aug. 2002, p. 000 Vol. 184, No. 16 0021-9193/02/$04.00 0 DOI: 10.1128/JB.184.16.000000.2002

    E-print Network

    Church, George M.

    JOURNAL OF BACTERIOLOGY, Aug. 2002, p. 000 Vol. 184, No. 16 0021-9193/02/$04.00 0 DOI: 10.1128/JB.184.16.000­000.2002 Genome-Scale Metabolic Model of Helicobacter pylori 26695 Christophe H. Schilling Received 17 January 2002/Accepted 14 May 2002 A genome-scale metabolic model of Helicobacter pylori 26695

  5. JOURNAL OF BACTERIOLOGY, Nov. 2006, p. 76867688 Vol. 188, No. 21 0021-9193/06/$08.00 0 doi:10.1128/JB.00700-06

    E-print Network

    Buckling, Angus

    .1128/JB.00700-06 Copyright © 2006, American Society for Microbiology. All Rights Reserved. NOTES Agr and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom1 ; Peter Medawar Building 2006 Repression of virulence by Staphylococcus aureus strains from different Agr groups has been

  6. Time Irreversibility of Cycle-by-Cycle Engine Combustion Variations J.B. Green, Jr., C.S. Daw, J.S. Armfield

    E-print Network

    Tennessee, University of

    engines under lean fueling. We propose that the time-irreversible patterns can be explained as the resultTime Irreversibility of Cycle-by-Cycle Engine Combustion Variations J.B. Green, Jr., C.S. Daw, J-ignition engines exhibit patterns of increasing in- stability as engine fueling goes from stoichiometric to lean

  7. JOURNAL OF BACTERIOLOGY, Feb. 2007, p. 12791287 Vol. 189, No. 4 0021-9193/07/$08.00 0 doi:10.1128/JB.01175-06

    E-print Network

    Nizet, Victor

    is required for capsule polymerization and export in group B Streptococcus and Streptococcus pneumoniae.1128/JB.01175-06 Copyright © 2007, American Society for Microbiology. All Rights Reserved. Streptococcus of the fish pathogen Streptococcus iniae, though indirect evidence suggests that capsule could represent

  8. A critical-density closed Universe in Brans-Dicke theory

    E-print Network

    S. del Campo; N. Cruz

    2000-04-28

    In a Brans-Dicke (BD) cosmological model, the energy density associated with some scalar field decreases as $\\displaystyle a^{{-2}(\\frac{\\omega_{o}+ {\\frac12}%}{\\omega_{o}+1})} $ with the scale factor $a(t)$ of the Universe, giving a matter with an Equation of state $\\displaystyle p=-{1/3}(\\frac{2+\\omega_{o}}{1+\\omega_{o}}) \\rho $. In this model, the Universe could be closed but still have a nonrelativistic-matter density corresponding to its critical value, $\\Omega_{o}=1$. Different cosmological expressions, such as, luminosity distance, angular diameter, number count and ratio of the redshift tickness-angular size, are determined in terms of the redshift for this model.

  9. The Bianchi type-V Dark Energy Cosmology in Self Interacting Brans Dicke Theory of Gravity

    E-print Network

    Singh, J K

    2016-01-01

    This paper deals with a spatially homogeneous and totally anisotropic Bianchi type-V cosmological model within the framework of self interacting Brans Dicke theory of gravity in the background of anisotropic dark energy (DE) with variable equation of state (EoS) parameter and constant deceleration parameter. Constant deceleration parameter leads to two models of universe, i.e. power law model and exponential model. EoS parameter {\\omega} and its existing range for the models is in good agreement with the most recent observational data. We notice that {\\omega} given by (37) i.e {\\omega}(t) = log(k1t) is more suitable in explaining the evolution of the universe. The physical behaviors of the solutions have also been discussed using some physical quantities. Finally, we observe that despite having several prominent features, both of the DE models discussed fail in details.

  10. From Floquet to Dicke: Quantum Spin Hall Insulator Interacting with Quantum Light.

    PubMed

    Gulácsi, Balázs; Dóra, Balázs

    2015-10-16

    Time-periodic perturbations due to classical electromagnetic fields are useful to engineer the topological properties of matter using the Floquet theory. Here we investigate the effect of quantized electromagnetic fields by focusing on the quantized light-matter interaction on the edge state of a quantum spin Hall insulator. A Dicke-type superradiant phase transition occurs at arbitrary weak coupling, the electronic spectrum acquires a finite gap, and the resulting ground-state manifold is topological with a Chern number of ±1. When the total number of excitations is conserved, a photocurrent is generated along the edge, being pseudoquantized as ?ln(1/?) in the low-frequency limit and decaying as 1/? for high frequencies with ? the photon frequency. The photon spectral function exhibits a clean Goldstone mode, a Higgs-like collective mode at the optical gap and the polariton continuum. PMID:26550853

  11. Varying alpha and cosmic acceleration in Brans-Dicke-BSBM theory: stability analysis and observational tests

    SciTech Connect

    Farajollahi, H.; Salehi, A. E-mail: a.salehi@guilan.ac.ir

    2012-11-01

    By integration of generalized BSBM and Brans-Dicke cosmological models, in this article, we investigate the theoretical framework of fine structure constant variation and current cosmic acceleration. We first develop a mathematical formalism to analyse the stability of the model. By employing observational data to constrain the model parameters, phase space is performed and the attractor solutions of the model are detected. We then examine the model against observational data such as observational Hubble parameter dataset and quasar absorption spectra. The results confirm current universe acceleration and also predicts fine structure constant variation. Furthermore, extrapolation of the best fitted model in high redshift (z > 15) illustrates a significantly larger variation of fine structure constant in earlier epoch of the universe.

  12. Comparing cavity and ordinary laser cooling within the Lamb-Dicke regime

    E-print Network

    Tony Blake; Andreas Kurcz; Almut Beige

    2010-11-28

    Cavity-mediated cooling has the potential to become one of the most efficient techniques to cool molecular species down to very low temperatures. In this paper we analyse cavity cooling with single-laser driving for relatively large cavity decay rates kappa and relatively large phonon frequencies nu. It is shown that cavity cooling and ordinary laser cooling are essentially the same within the validity range of the Lamb-Dicke approximation. This is done by deriving a closed set of rate equations and calculating the corresponding stationary state phonon number and cooling rate. For example, when nu is either much larger or much smaller than kappa, the minimum stationary state phonon number scales as kappa^2/16 nu^2 (strong confinement regime) and as kappa / 4 nu (weak confinement regime), respectively.

  13. Modified Holographic Ricci Dark Energy in Chameleon Brans-Dicke Cosmology and Its Thermodynamic Consequence

    NASA Astrophysics Data System (ADS)

    Jawad, A.; Chattopadhyay, S.; Bhattacharya, S.; Pasqua, A.

    2015-04-01

    The objective of this paper is to discuss the Chameleon Brans-Dicke gravity with non-minimally matter coupling of scalar field. We take modified Holographic Ricci dark energy model in this gravity with its energy density in interaction with energy density of cold dark matter. We assume power-law ansatz for scale factor and scalar field to discuss potential as well as coupling functions in the evolving universe. These reconstructed functions are plotted versus scalar field and time for different values of power component of scale factor n. We observe that potential and coupling functions represent increasing behavior, in particular, consistent results for a specific value of n. Finally, we have examined validity of the generalized second law of thermodynamics and we have observed its validity for all values of n. The financial Supported from Department of Science and Technology, Govt. of India under Project Grant No. SR/FTP/PS-167/2011 is thankfully acknowledged by SC

  14. Observations of Dicke Narrowing and Speed-Dependence in CO2 Lineshapes Near 2060NM

    NASA Astrophysics Data System (ADS)

    Bui, Thinh Quoc; Long, David A.; Agata, Cygan; Sironneau, Vincent; Hogan, Daniel; Rapusinghe, Priyanka Milinda; Okumura, Mitchio

    2014-06-01

    To achieve NASA's strategic scientific mission of monitoring global atmospheric CO_2 at a target precision of 0.25%, we perform laser based measurements and lineshape studies of the reference atmospheric target CO_2 band (20013)gets(00001) centered at 2060nm to meet the precision requirements of current (ACOS/GOSAT/TCCON) and future (OCO-2/OCO-3/ASCENDS) remote sensing applications. We utilize a frequency-stabilized cavity ringdown spectrometer, (FS-CRDS), to provide high precision and high spectral resolution for probing non-Voigt lineshape features (Dicke narrowing, speed dependence) of CO_2 currently unaccounted for in databases like HITRAN. We discuss our results for two R-branch lines R(24) and R(30) near 2055nm, which display concurrent collisional narrowing and speed dependence effects.

  15. Brans-Dicke-Maxwell solutions for higher dimensional static cylindrical symmetric spacetime

    NASA Astrophysics Data System (ADS)

    ?iftci, Dilek K.; Delice, Ögür

    2015-07-01

    In this paper, Brans-Dicke-Maxwell type vacuum solutions are considered for a static cylindrically symmetric spacetime in arbitrary dimensions. Exact solutions are obtained by directly solving the field equations for the case where an azimuthal magnetic field is present. Other configurations such as axial magnetic field case can be obtained by suitably relabeling the coordinates. We have also considered conformally related "Einstein frame" to relate the solutions we have obtained with the dilaton-Maxwell type solutions that exist in the literature. We see that for a special case the general solution we present reduces to dilaton-Melvin spacetime. The general relativistic limit of these solutions is also discussed and we found that this limit is different from the four dimensional case.

  16. From Floquet to Dicke: Quantum Spin Hall Insulator Interacting with Quantum Light

    NASA Astrophysics Data System (ADS)

    Gulácsi, Balázs; Dóra, Balázs

    2015-10-01

    Time-periodic perturbations due to classical electromagnetic fields are useful to engineer the topological properties of matter using the Floquet theory. Here we investigate the effect of quantized electromagnetic fields by focusing on the quantized light-matter interaction on the edge state of a quantum spin Hall insulator. A Dicke-type superradiant phase transition occurs at arbitrary weak coupling, the electronic spectrum acquires a finite gap, and the resulting ground-state manifold is topological with a Chern number of ±1 . When the total number of excitations is conserved, a photocurrent is generated along the edge, being pseudoquantized as ? ln (1 /? ) in the low-frequency limit and decaying as 1 /? for high frequencies with ? the photon frequency. The photon spectral function exhibits a clean Goldstone mode, a Higgs-like collective mode at the optical gap and the polariton continuum.

  17. Particle collisions near a Kerr-like black hole in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Sultana, Joseph; Bose, Benjamin

    2015-11-01

    A recent discovery in 2009 by Bañados, Silk and West (BSW), which generated a lot of interest, involves the arbitrary high center-of-mass (c.m.) energies for free particle collisions at the horizon of an extreme kerr black hole when one of the free particles has a critical value of the angular momentum. In light of this we consider the rotating Kerr-like black hole solution in Brans-Dicke theory and study the motion of scalar test charges in the vicinity of the black hole horizon. We show that the interaction of the test scalar charges with the background scalar field in this spacetime suppresses the c.m. energy for collisions occurring near the event horizon, and the value of the c.m. energy there, is finite irrespective of whether the black hole is extreme or not and its value is also independent of the angular momenta of the colliding test charges.

  18. Brans-Dicke model constrained from Big Bang nucleosynthesis and magnitude redshift relations of Supernovae

    E-print Network

    Thushari, E P B A; Hashimoto, M; Arai, K

    2010-01-01

    The Brans-Dicke model with a variable cosmological term ($BD\\Lambda$) has been investigated with use of the coupling constant of $\\omega=10^4$. Parameters inherent in this model are constrained from comparison between Big Bang nucleosynthesis and the observed abundances. Furthermore, the magnitude redshift ($m-z$) relations are studied for $BD\\Lambda$ with and without another constant cosmological term in a flat universe. Observational data of Type Ia Supernovae are used in the redshift range of $0.01

  19. Exploring chaos in the Dicke model using ground-state fidelity and Loschmidt echo.

    PubMed

    Bhattacharya, Utso; Dasgupta, Sayak; Dutta, Amit

    2014-08-01

    We study the quantum critical behavior of the Dicke Hamiltonian with finite number of atoms and explore the signature of quantum chaos using measures like the ground-state fidelity and the Loschmidt echo and the time-averaged Loschmidt echo. We show that these quantities clearly point to the classically chaotic nature of the system in the superradiant (SR) phase. While the ground-state fidelity shows aperiodic oscillations as a function of the coupling strength, the echo shows aperiodic oscillations in time and decays rapidly when the system is in the SR phase. We clearly demonstrate how the time-averaged value of the echo already incorporates the information about the ground-state fidelity and stays much less than unity, indicating the classically chaotic nature of the model in the SR phase. PMID:25215812

  20. Spin squeezing as an indicator of quantum chaos in the Dicke model.

    PubMed

    Song, Lijun; Yan, Dong; Ma, Jian; Wang, Xiaoguang

    2009-04-01

    We study spin squeezing, an intrinsic quantum property, in the Dicke model without the rotating-wave approximation. We show that the spin squeezing can reveal the underlying chaotic and regular structures in phase space given by a Poincaré section, namely, it acts as an indicator of quantum chaos. Spin squeezing vanishes after a very short time for an initial coherent state centered in a chaotic region, whereas it persists over a longer time for the coherent state centered in a regular region of the phase space. We also study the distribution of the mean spin directions when quantum dynamics takes place. Finally, we discuss relations among spin squeezing, bosonic quadrature squeezing, and two-qubit entanglement in the dynamical processes. PMID:19518325

  1. Stability analysis of agegraphic dark energy in Brans-Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Farajollahi, H.; Sadeghi, J.; Pourali, M.; Salehi, A.

    2012-05-01

    Stability analysis of agegraphic dark energy in Brans-Dicke theory is presented in this paper. We constrain the model parameters with the observational data and thus the results become broadly consistent with those expected from experiment. Stability analysis of the model without best fitting shows that universe may begin from an unstable state passing a saddle point and finally become stable in future. However, with the best fitted model, There is no saddle intermediate state. The agegraphic dark energy in the model by itself exhibits a phantom behavior. However, contribution of cold dark matter on the effective energy density modifies the state of the universe from phantom phase to quintessence one. The statefinder diagnosis also indicates that the universe leaves an unstable state in the past, passes the LCDM state and finally approaches the sable state in future.

  2. Kaluza-Klein dark energy model in Brans-Dicke theory of gravitation

    NASA Astrophysics Data System (ADS)

    Reddy, D. R. K.; Vijaya Lakshmi, G. V.

    2015-05-01

    A five dimensional Kaluza-Klein dark energy model with a variable equation of state (EoS) parameter and a constant deceleration parameter is considered in the scalar-tensor theory proposed by Brans and Dicke (Phys. Rev. 24:925, 1961). We have introduced three different skew ness parameters along spatial directions which are time dependent. The field equations have been solved by using (i) the trace of the energy tensor of the fluid vanishes, (ii) shear scalar is proportional to scalar expansion and (iii) special law of variation for Hubble's parameter proposed by Bermann (Nuovo Cimento B 74:182, 1983). It is observed that in this case the EoS parameter turns out to be constant. Some physical and kinematical properties of the model obtained are also discussed.

  3. 40 CFR Appendix Vi to Part 265 - Compounds With Henry's Law Constant Less Than 0.1 Y/X

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ...2011-07-01 false Compounds With Henry's Law Constant...Appendix VI to Part 265—Compounds With Henry's Law Constant Less Than 0.1 Y/X Compound name CAS No. Acetaldol...106-48-9 Chlorophenol polymers (2-chlorophenol &...

  4. Basic Assumptions in the Virginia Ratification Debates: Patrick Henry vs. James Madison on the Nature of Man and Reason.

    ERIC Educational Resources Information Center

    Einhorn, Lois

    The identifiably different rhetorical behaviors of Patrick Henry and James Madison, as expressed in their Virginia debates, reflect each man's philosophical view of human nature and the role of reason in human behavior. Patrick Henry, expressing the pessimism of Calvinistic tradition, believed that people are intrinsically evil with a dominant…

  5. Security Analysis of Accountable Anonymity in Dissent EWA SYTA, HENRY CORRIGAN-GIBBS, SHU-CHUN WENG, DAVID WOLINSKY,

    E-print Network

    Johnson, Aaron

    4 Security Analysis of Accountable Anonymity in Dissent EWA SYTA, HENRY CORRIGAN-GIBBS, SHU-CHUN WENG, DAVID WOLINSKY, and BRYAN FORD, Yale University AARON JOHNSON, U.S. Naval Research Laboratory: Anonymous communication, accountable anonymity, provable security ACM Reference Format: Ewa Syta, Henry

  6. Prediction of Henry's law constants of triazine derived herbicides from quantum chemical continuum solvation models.

    PubMed

    Delgado, Eduardo J; Alderete, Joel B

    2003-01-01

    The Henry's law constants (H) for triazine derived herbicides are calculated using quantum chemical solvation models, SM2, SM3, PCM-DFT, and CPCM-DFT, and their performances are discussed. The results show considerable differences in performance among the different levels of theory. The values of H calculated by the semiempirical methods agree much better with the experimental values than those obtained at the DFT level. The differences are discussed in terms of the different contributions, electrostatic and no-electrostatic, to Gibbs free energy of solvation. In addition, the Henry's law constants of some triazine derived herbicides whose values have not been reported earlier are predicted as well. PMID:12870915

  7. A review of "Henry Ireton and the English Revolution." by David Farr 

    E-print Network

    Mcjimsey, Robert

    2007-01-01

    stream_source_info V65-I1-04-McJimsey.pdf.txt stream_content_type text/plain stream_size 7750 Content-Encoding ISO-8859-1 stream_name V65-I1-04-McJimsey.pdf.txt Content-Type text/plain; charset=ISO-8859-1 10 SEVENTEENTH.... David Farr. Henry Ireton and the English Revolution. Rochester, New York: Boydell Press, 2006. ix+277 pp. $90.00. Reviewed by ROBERT MCJIMSEY, COLORADO COLLEGE. This work is not a biography of Henry Ireton. Rather, its author?s aim is to relate...

  8. Temperature-Dependent Henry's Law Constants of Atmospheric Amines.

    PubMed

    Leng, Chunbo; Kish, J Duncan; Roberts, Jason E; Dwebi, Iman; Chon, Nara; Liu, Yong

    2015-08-20

    There has been growing interest in understanding atmospheric amines in the gas phase and their mass transfer to the aqueous phase because of their potential roles in cloud chemistry, secondary organic aerosol formation, and the fate of atmospheric organics. Temperature-dependent Henry's law constants (KH) of atmospheric amines, a key parameter in atmospheric chemical transport models to account for mass transfer, are mostly unavailable. In this work, we investigated gas-liquid equilibria of five prevalent atmospheric amines, namely 1-propylamine, di-n-propylamine, trimethylamine, allylamine, and 4-methylmorpholine using bubble column technique. We reported effective KH, intrinsic KH, and gas phase diffusion coefficients of these species over a range of temperatures relevant to the lower atmosphere for the first time. The measured KH at 298 K and enthalpy of solution for 1-propylamine, di-n-propylamine, trimethylamine, allylamine, and 4-methylmorpholine are 61.4 ± 4.9 mol L(-1) atm(-1) and -49.0 ± 4.8 kJ mol(-1); 14.5 ± 1.2 mol L(-1) atm(-1) and -72.5 ± 6.8 kJ mol(-1); 8.9 ± 0.7 mol L(-1) atm(-1) and -49.6 ± 4.7 kJ mol(-1); 103.5 ± 10.4 mol L(-1) atm(-1) and -42.7 ± 4.3 kJ mol(-1); and 952.2 ± 114.3 mol L(-1) atm(-1) and -82.7 ± 9.7 kJ mol(-1), respectively. In addition, we evaluated amines' characteristic times to achieve gas-liquid equilibrium for partitioning between gas and aqueous phases. Results show gas-liquid equilibrium can be rapidly established at natural cloud droplets surface, but the characteristic times may be extended substantially at lower temperatures and pHs. Moreover, our findings imply that atmospheric amines are more likely to exist in cloud droplets, and ambient temperature, water content, and pH of aerosols play important roles in their partitioning. PMID:26200814

  9. Annie Jump Cannon: `` Life after The Henry Draper Catalogue.''

    NASA Astrophysics Data System (ADS)

    Welther, B. L.

    1993-05-01

    Seventy-five years ago the first three volumes of The Henry Draper Catalogue were published. The pages printed in 1918 contain the spectral types, revised magnitudes, and updated positions for more than 77,000 stars. For the nine volumes of the catalogue, Cannon classified spectra for 225,300 stars; and in her lifetime, spectra for almost 400,000 stars. This work netted her half a dozen honorary degrees, the Draper Medal of the NAS, and numerous other prizes and honors. In his preface to Volume 1, Edward Pickering noted that it took two years to process the copy for the initial volumes and estimated that it would take two more years to complete the copy for the remaining volumes. But shortly after he wrote the preface for Volume 3 in December 1918, Pickering died. And it proved to take three times as long as he had predicted to complete the publication of all nine volumes of the catalogue by the spring of 1924. Although Cannon had enjoyed much more independence and status than the other women at HCO, she had looked to Pickering for guidance and financial support for her astronomical projects. Without him, she had to develop other resources and also had to represent the Harvard Classification for the first IAU meeting in Rome in 1922. Although she did not attend the meeting, she corresponded with Frederick Seares at Mount Wilson Observatory about various questions that astronomers had raised about classifying spectra. Meanwhile, in 1921 Harlow Shapley was appointed Director of HCO. He oversaw the publication of the final volumes of the HD and encouraged Cannon to extend it for stars in special regions. For the HD Extension, he hired Margaret Walton to assist Cannon. But the cost of labor to determine positions and magnitudes was prohibitive, so for many stars the HDE lists only the BD number and spectral type. Even that format proved too costly in the depression and war years. Consequently, the last volume of the HDE was published as charts after World War II.

  10. Thermodynamics of topological black holes in Brans-Dicke gravity with a power-law Maxwell field

    E-print Network

    Zangeneh, M Kord; Sheykhi, A

    2015-01-01

    In this paper, we present a new class of higher dimensional exact topological black hole solutions of the Brans-Dicke theory in the presence of a power-law Maxwell field as the matter source. For this aim, we introduce a conformal transformation which transforms the Einstein-dilaton-power-law Maxwell gravity Lagrangian to the Brans-Dicke-power-law Maxwell theory one. Then, by using this conformal transformation, we obtain the desired solutions. Next, we study the properties of the solutions and conditions under which we have black holes. Interestingly enough, we show that there is a cosmological horizon in the presence of a negative cosmological constant. Finally, we calculate the temperature and charge and then by calculating the Euclidean action, we obtain the mass, the entropy and the electromagnetic potential energy. We find that the entropy does not respect the area law, and also the conserved and thermodynamic quantities are invariant under conformal transformation. Using these thermodynamic and conserv...

  11. Extended phase space thermodynamics and P-V criticality of charged black holes in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Hendi, S. H.; Armanfard, Z.

    2015-10-01

    Motivated by conformal relation between dilaton gravity and Brans-Dicke theory, in this paper, we are taking into account extended phase space thermodynamics to investigate phase transition of charged black holes. We regard spherically symmetric charged black hole solutions in the presence of a scalar field in both Einstein and Jordan frames and calculate related conserved and thermodynamic quantities. Then, we study the analogy of the black hole solution with the Van der Waals liquid-gas system in the extended phase space by considering the cosmological constant proportional to thermodynamical pressure. We obtain critical values of thermodynamic coordinates and plot P-V and G-T diagrams to study the phase transition points and compare the results of dilaton gravity and Brans-Dicke theory.

  12. Stationary axially symmetric exterior solutions in the five-dimensional representation of the Brans-Dicke-Jordan theory of gravitation

    SciTech Connect

    Bruckman, W.

    1986-11-15

    The inverse scattering method of Belinsky and Zakharov is used to investigate axially symmetric stationary vacuum soliton solutions in the five-dimensional representation of the Brans-Dicke-Jordan theory of gravitation, where the scalar field of the theory is an element of a five-dimensional metric. The resulting equations for the spacetime metric are similar to those of solitons in general relativity, while the scalar field generated is the product of a simple function of the coordinates and an already known scalar field solution. A family of solutions is considered that reduce, in the absence of rotation, to the five-dimensional form of a well-known Weyl-Levi Civita axially symmetric static vacuum solution. With a suitable choice of parameters, this static limit becomes equivalent to the spherically symmetric solution of the Brans-Dicke theory. An exact metric, in which the Kerr-scalar McIntosh solution is a special case, is given explicitly.

  13. Preparation of Schrödinger cat states with cold ions in a cavity beyond the Lamb-Dicke limit

    E-print Network

    Dagoberto S Freitas; Jairo R Rocha

    2010-11-04

    We investigate the dynamics of a cold trapped ion coupled to the quantized field inside a high-finesse cavity. We have used an approach for preparing the SC states of motion of ion. This approach, based on unitary transformating the Hamiltonian, allows its exact diagonalization without performing the Lamb-Dicke aproximation. We show that is possible to generate a SC states having rather simple initial state preparation, e.g., the vacuum sate for both cavity field and the ion motion.

  14. Planning in Public Education: Lessons from Horace Mann and Henry Barnard

    ERIC Educational Resources Information Center

    Henkin, Alan B.; Ignasias, C. Dennis

    1978-01-01

    A handful of educational reformers from each generation effectively muster and sustain public support in efforts to advance their visions for education. Here is an account of the efforts of Horace Mann and Henry Barnard acting as educational advocates and consensus builders who evoked public responsiveness and guided their constituencies toward…

  15. Validating LR(1) Parsers Jacques-Henri Jourdan1,2

    E-print Network

    . However, Barthwal and Norrish's proof is specific to a particular parser generator that only accepts SLR validation of an LR(1) automaton produced by an untrusted parser generator, as depicted in Fig. 1. AfterValidating LR(1) Parsers Jacques-Henri Jourdan1,2 , Fran¸cois Pottier2 , and Xavier Leroy2 1 ´Ecole

  16. 83:1315-1328, 2000.J Neurophysiol Henry Matzner, Yoram Gutfreund and Binyamin Hochner

    E-print Network

    Hochner, Binyamin

    83:1315-1328, 2000.J Neurophysiol Henry Matzner, Yoram Gutfreund and Binyamin Hochner Octopus Yekutieli, Roni Sagiv-Zohar, Binyamin Hochner and Tamar Flash Dynamic Model of the Octopus Arm. II. Control Model of the Octopus Arm. I. Biomechanics of the Octopus Reaching Movement [PDF][Full Text

  17. Control-Structure Ratings on the Fox River at McHenry and Algonquin, Illinois

    USGS Publications Warehouse

    Straub, Timothy D.; Johnson, Gary P.; Hortness, Jon E.; Parker, Joseph R.

    2009-01-01

    The Illinois Department of Natural Resources-Office of Water Resources operates control structures on a reach of the Fox River in northeastern Illinois between McHenry and Algonquin. The structures maintain water levels in the river for flood-control and recreational purposes. This report documents flow ratings for hinged-crest gates, a broad-crested weir, sluice gates, and an ogee spillway on the control structures at McHenry and Algonquin. The ratings were determined by measuring headwater and tailwater stage along with streamflow at a wide range of flows at different gate openings. Standard control-structure rating techniques were used to rate each control structure. The control structures at McHenry consist of a 221-feet(ft)-long broad-crested weir, a 4-ft-wide fish ladder, a 50-ft-wide hinged-crest gate, five 13.75-ft-wide sluice gates, and a navigational lock. Sixty measurements were used to rate the McHenry structures. The control structures at Algonquin consist of a 242-ft-long ogee spillway and a 50-ft-wide hinged-crest gate. Forty-one measurements were used to rate the Algonquin control structures.

  18. BUBBLE STRIPPING TO DETERMINE HYDROGEN CONCENTRATIONS IN GROUND WATER: A PRACTICAL APPLICATION OF HENRY'S LAW

    EPA Science Inventory

    The Bubble Stripping Method is a chemical testing method that operates on the principle of Henry's Law. It is useful for determining concentrations of hydrogen in well water, and it is capable of detecting concentrations on the order of nanomoles per liter. The method provides ...

  19. COASTAL CONDITIONS IN THE VIRGINIAN PROVINCE (CAPE COD TO CAPE HENRY)

    EPA Science Inventory

    The U.S. EPA Environmental Monitoring and Assessment Program (EMAP) collected ecological condition data during 1990 through 1993 from the estuarine waters of the Virginian Biogeographic Province (Cape Henry to Cape Cod) to answer broad-scale questions on environmental conditions...

  20. Neostusakia, a new name for preoccupied Stusakia Kment and Henry, 2008 (Hemiptera: Heteroptera: Berytidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A case of homonymy in the heteropteran family Berytidae is addressed. The genus Stusakia Kment and Henry, 2008 (Hemiptera) is preoccupied by Stusakia Frýda, 1998 (Mollusca: Gastropoda). As a consequence, the replacement name Neostusakia, new name, is proposed. In addition, the only two included s...