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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

  2. Dicke, Robert Henry (1916-)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Physicist, born in St Louis, MO, professor at Princeton (1946-84). He did not believe EINSTEIN's general theory of relativity and conducted numerous experiments to challenge its famous tests. He attempted to determine whether the Sun was oblate (squashed at the poles) and could thus cause alterations to the orbit of Mercury which had been interpreted in Einstein's favor. He re- measured the gravi...

  3. Moby Dick.

    ERIC Educational Resources Information Center

    Stern, Milton R.

    1986-01-01

    Discusses examples in "Moby Dick" of Melvillean words symptomatic of the significance of Ishmael's rhetorical energy, in order to suggest that Ishmael's language reflects Melville's search for lexical and rhetorical forms that express the democratic impulse. (SRT)

  4. 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…

  5. J.B. v. M.B.

    PubMed

    2000-01-01

    Court Decision: 751 Atlantic Reporter, 2d Series 613; 2003 Jun 1 (date of decision). The Superior Court of New Jersey held that a contract made between a now divorced couple and their in vitro fertilization (IVF) provider is not enforceable because it constitutes a contract to procreate, and thus it is contrary to state public policy and is unenforceable. During IVF treatment J.B. became pregnant and gave birth to a healthy child. The extra embryos were cryopreserved. Subsequently J.B. and M.B. divorced. An agreement with their IVF provider specified that control over the frozen embryos was to be relinquished to the provider if the couple divorced, unless specified by a court order. M.B., the former husband, alleged that he and J.B. had agreed to donate the unused embryos to infertile couples. J.B., the former wife, wished to have the embryos destroyed. The court found that enforcing the alleged contract to donate the embryos would impair the former wife's constitutional right to not procreate. Furthermore, M.B.'s right to procreate would not be impaired if the contract were not enforced because M.B. was not infertile and was capable of having children with another person. The Superior Court affirmed the trial court's judgment in favor of the former wife and ordered the destruction of the frozen embryos. PMID:16285110

  6. 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…

  7. Richard Henry Dana (1927-2015).

    PubMed

    Allen, James

    2016-01-01

    Richard Henry Dana was born on June 14, 1927, in Bronxville, New York. Dick was accepted to Princeton University in 1944 on a scholarship and graduated in 1949. He then became a student leader in the Congress of Racial Equality and participated in a series of nonviolent sit-in protests. He completed studies for his doctoral degree at the University of Illinois in clinical psychology (1953). He briefly held a series of clinical and university positions until finally settling down at the University of Arkansas (1969- 1988). It was during his long tenure in Arkansas that Dick authored one of the foundational textbooks in clinical psychology. His groundbreaking work, Multicultural Assessment Perspectives for Professional Psychology (1993), provided the first comprehensive book on the topic. Over a remarkable 10-year period, he produced a flurry of scholarly and professional activity. He passed away peacefully at his home in Portland, Oregon, on August 17, 2015. PMID:26866992

  8. Liverpool Telescope Spectrum of ASASSN-16jb

    NASA Astrophysics Data System (ADS)

    Williams, S. C.; Darnley, M. J.

    2016-08-01

    We obtained an optical spectrum of ASASSN-16jb (see ASAS-SN Transients; Shappee et al. 2014) with the FRODOSpec spectrograph (Barnsley et al. 2012) on the 2.0m Liverpool Telescope (Steele et al. 2004) on 2016 August 20.87 UT. The spectrum was taken using the higher resolution mode, which gives a wavelength coverage of 3900 to 5100 & Aring and 5900 to 8000 & Aring, with a resolution of R ~ 5400.

  9. Henry's Law: A Retrospective

    ERIC Educational Resources Information Center

    Rosenberg, Robert M.; Peticolas, Warner L.

    2004-01-01

    A retrospective view of Henry's law and its applicability in any specific system at a finite concentration is tested. It can be concluded that Henry's law is only a limiting law and is adequate at low mole fractions but is useful for practical purposes where high precision is not required.

  10. 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…

  11. John Henry: Then and Now.

    ERIC Educational Resources Information Center

    Nikola-Lisa, W.

    1998-01-01

    Compares three children's books retelling the legend of John Henry: "John Henry: An American Legend" by Ezra Jack Keats (1965), "John Henry" by Julius Lester (1994), and "The Legend of John Henry" by Terry Small (1994). Differences in imagery, language, symbolism, and themes are discussed. (MAK)

  12. 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.

  13. 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.

  14. 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.

  15. 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)

  16. Quantum Criticality in the Biased Dicke Model

    PubMed Central

    Zhu, Hanjie; Zhang, Guofeng; Fan, Heng

    2016-01-01

    The biased Dicke model describes a system of biased two-level atoms coupled to a bosonic field, and is expected to produce new phenomena that are not present in the original Dicke model. In this paper, we study the critical properties of the biased Dicke model in the classical oscillator limits. For the finite-biased case in this limit, We present analytical results demonstrating that the excitation energy does not vanish for arbitrary coupling. This indicates that the second order phase transition is avoided in the biased Dicke model, which contrasts to the original Dicke model. We also analyze the squeezing and the entanglement in the ground state, and find that a finite bias will strongly modify their behaviors in the vicinity of the critical coupling point. PMID:26786239

  17. Quantum Criticality in the Biased Dicke Model.

    PubMed

    Zhu, Hanjie; Zhang, Guofeng; Fan, Heng

    2016-01-01

    The biased Dicke model describes a system of biased two-level atoms coupled to a bosonic field, and is expected to produce new phenomena that are not present in the original Dicke model. In this paper, we study the critical properties of the biased Dicke model in the classical oscillator limits. For the finite-biased case in this limit, We present analytical results demonstrating that the excitation energy does not vanish for arbitrary coupling. This indicates that the second order phase transition is avoided in the biased Dicke model, which contrasts to the original Dicke model. We also analyze the squeezing and the entanglement in the ground state, and find that a finite bias will strongly modify their behaviors in the vicinity of the critical coupling point. PMID:26786239

  18. Henry County School Questionnaire.

    ERIC Educational Resources Information Center

    Goolsby, Thomas M., Jr.; Frary, Robert B.

    This 14-item questionnaire was designed to measure parent opinion regarding the effect of integration on third grade pupils in Henry County Schools. The questionnaire is not standardized, and field testing has been on a small scale. (See also TM 000 940 for a description of the study, and 942, 943 for the desegregation and school integration…

  19. 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.

  20. 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 φ 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 ΛCDM model.

  1. 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 ω≠-(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.

  2. Henry Gray, plagiarist.

    PubMed

    Richardson, Ruth

    2016-03-01

    The first edition of Anatomy Descriptive and Surgical (1858) was greeted with accolades, but also provoked serious controversy concerning Henry Gray's failure to acknowledge the work of earlier anatomists. A review in the Medical Times (1859) accused Gray of intellectual theft. The journal took the unusual step of substantiating its indictment by publishing twenty parallel texts from Gray and from a pre-existing textbook, Quain's Anatomy. At the recent "Vesalius Continuum" conference in Zakynthos, Greece (2014) Professor Brion Benninger disputed the theft by announcing from the floor the results of a computer analysis of both texts, which he reported exonerated Gray by revealing no evidence of plagiarism. The analysis has not been forthcoming, however, despite requests. Here the historian of Gray's Anatomy supplements the argument set out in the Medical Times 150 years ago with data suggesting unwelcome personality traits in Henry Gray, and demonstrating the utility of others' work to his professional advancement. Fair dealing in the world of anatomy and indeed the genuineness of the lustre of medical fame are important matters, but whether quantitative evidence has anything to add to the discussion concerning Gray's probity can be assessed only if Benninger makes public his computer analysis. PMID:26696521

  3. Rim of Henry Crater

    NASA Technical Reports Server (NTRS)

    2002-01-01

    (Released 02 April 2002) This portion of the rim of Henry Crater has numerous dark streaks located on the slopes of the inner crater wall. These dark slope streaks have been suggested to have formed when the relatively bright dust that mantles the slopes slides downhill, either exposing a dust-free darker surface or creating a darker surface by increasing its roughness. The topography in this region appears muted, indicating the presence of regional dust mantling. The materials on floor of the crater (middle to lower left) are layered, with differing degrees of hardness and resistance to erosion producing cliffs (resistant layers) and ledges (easily eroded layers). These layered materials may have been originally deposited in water, although deposition by other means, such as windblown dust and sand, is also possible. Henry Crater, named after a 19th Century French astronomer, is 170 km in diameter and is located at 10.9o N, 336.7o W (23.3o E) in a region called Arabia Terra.

  4. Take a Hike with Henry.

    ERIC Educational Resources Information Center

    Joseph, Linda C.

    2000-01-01

    Presents activities and relevant Web sites associated with the picture book "Henry Hikes to Fitchburg" which is based on a passage from "Walden" by Henry David Thoreau. Includes author sites, Library of Congress sites, town profiles and histories, nature crafts, and recipes. (LRW)

  5. 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.

  6. JB-9322, a new selective histamine H2-receptor antagonist with potent gastric mucosal protective properties.

    PubMed Central

    Palacios, B.; Montero, M. J.; Sevilla, M. A.; Román, L. S.

    1995-01-01

    1. JB-9322 is a selective histamine H2-receptor antagonist with gastric antisecretory activity and mucosal protective properties. 2. The affinity of JB-9322 for the guinea-pig atria histamine H2-receptor was approximately 2 times greater than that of ranitidine. 3. In vivo, the ID50 value for the inhibition of gastric acid secretion in pylorus-ligated rats was 5.28 mg kg-1 intraperitoneally. JB-9322 also dose-dependently inhibited gastric juice volume and pepsin secretion. In gastric lumen-perfused rats, intravenous injection of JB-9322 dose-dependently reduced histamine-, pentagastrin- and carbachol-stimulated gastric acid secretion. 4. JB-9322 showed antiulcer activity against aspirin and indomethacin-induced gastric lesions and was more potent than ranitidine. 5. JB-9322 effectively inhibited macroscopic gastric haemorrhagic lesions induced by ethanol. Intraperitoneal injection was effective in preventing the lesions as well as oral treatment. The oral ID50 value for these lesions was 1.33 mg kg-1. By contrast, ranitidine (50 mg kg-1) failed to reduce these lesions. In addition, the protective effect of JB-9322 was independent of prostaglandin synthesis. 6. These results indicate that JB-9322 is a new antiulcer drug that exerts a potent cytoprotective effect in addition to its gastric antisecretory activity. PMID:7647984

  7. 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

  8. 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

  9. Axially Symmetric Brans-Dicke-Maxwell Solutions

    NASA Astrophysics Data System (ADS)

    Chatterjee, S.

    1981-05-01

    Following a method of John and Goswami new solutions of coupled Brans-Dicke-Maxwell theory are generated from Zipoy's solutions in oblate and prolate spheroidal coordinates for source-free gravitational field. All these solutions become Euclidean at infinity. The asymptotic behavior and the singularity of the solutions are discussed and a comparative study made with the corresponding Einstein-Maxwell solutions. The possibility of a very large red shift from the boundary of the spheroids is also discussed.

  10. Selective control of the symmetric Dicke subspace in trapped ions

    SciTech Connect

    Lopez, C. E.; Retamal, J. C.; Solano, E.

    2007-09-15

    We propose a method of manipulating selectively the symmetric Dicke subspace in the internal degrees of freedom of N trapped ions. We show that the direct access to ionic-motional subspaces, based on a suitable tuning of motion-dependent ac Stark shifts, induces a two-level dynamics involving previously selected ionic Dicke states. In this manner, it is possible to produce, sequentially and unitarily, ionic Dicke states with increasing excitation number. Moreover, we propose a probabilistic technique to produce directly any ionic Dicke state assuming suitable initial conditions.

  11. 4. Photocopy of watercolor by J.B. Taylor, September 3, 1840 ...

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

    4. Photocopy of watercolor by J.B. Taylor, September 3, 1840 (original in the Chester County Historical Society, West Chester Pennsylvania) WEST FRONT, 1840 - Bank of Chester County, 17 North High Street, West Chester, Chester County, PA

  12. Josh Billings (Henry Wheeler Shaw).

    ERIC Educational Resources Information Center

    Kesterson, David B.

    Designed for use by the general reader, the college student, and the teacher, this book analyzes the life and literary career of Josh Billings (Henry Wheeler Shaw), emphasizing his literary ventures and artistic talents. The analysis reveals Billings' talents as a subtle humorist, homespun philosopher, and artist of the essay. Chapters include…

  13. 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.

  14. A Conversation with Henry Pollak.

    ERIC Educational Resources Information Center

    Albers, Donald J.; Thibodeaux, Michael J.

    1984-01-01

    Presents an interview with Henry Pollak. Areas considered include how and why he chose mathematics, his international activities, teaching in industry, model building in schools, applied mathematics, experiences with the School Mathematics Study Group (SMSG), and failure of the SMSG at the elementary level, and others. (JN)

  15. 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…

  16. Henry Giroux and the Arts

    ERIC Educational Resources Information Center

    Trend, David

    2012-01-01

    Henry A. Giroux is well known for pushing the definitions of education. From his early forays into what has been termed the "New Sociology of Education" in the early 1980s to his more recent discussions of "public pedagogy", Giroux has methodically challenged existing orthodoxies. This essay will focus on the interdisciplinary broadening of…

  17. Electrically tunable Dicke effect in a double-ring resonator

    SciTech Connect

    Cetin, A. E.; Muestecaplioglu, Oe. E.

    2010-04-15

    We study the finite-element method analysis of the Dicke effect using numerical simulations in an all-optical system of an optical waveguide side-coupled to two interacting ring resonators in a liquid crystal environment. The system is shown to exhibit all the signatures of the Dicke effect under active and reversible control by an applied voltage.

  18. 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…

  19. Solar oblateness from Archimedes to Dicke

    NASA Astrophysics Data System (ADS)

    Sigismondi, C.; Oliva, P.

    2005-10-01

    The non-spherical shape of the Sun has been invoked to explain the anomalous precession of Mercury. A brief history of some methods for measuring the solar diameter is presented. Archimedes was the first to give upper and lower values for the solar diameter in the third century before Christ. Then there followed the method of total eclipses, used after Halley's observative campaign of 1715 eclipse. We will also discuss the variant of partial eclipses, useful to measure different chords of the solar disk and the method of Dicke, which correlates oblateness with luminous excess in the equatorial zone.

  20. Henry Morgenthau's voice in history.

    PubMed

    Steiner, Pamela

    2015-01-01

    Henry Morgenthau (1856-1946) distinguished himself as the U.S. Ambassador to the Ottoman Empire, 1913-1916, and as the chairman of the League of Nations Refugee Settlement Commission (RSC) for Greece, 1923-24. I describe aspects of his early life that shaped the man he became, his accomplishments in these two posts, and his feelings about himself over time. At the end I briefly describe his attitude toward a possible Jewish state in Palestine. PMID:25630196

  1. Elucidating Dicke superradiance by quantum uncertainty

    NASA Astrophysics Data System (ADS)

    dos Santos, Eduardo M.; Duzzioni, Eduardo I.

    2016-08-01

    Recently it was shown by Wolfe and Yelin [E. Wolfe and S. F. Yelin, Phys. Rev. Lett. 112, 140402 (2014), 10.1103/PhysRevLett.112.140402] that in the idealized Dicke model of superradiance there is no entanglement among any partitions of the system during the total evolution time of the system. This result immediately causes us to question if other measures from quantum information theory can explain the characteristic release of energy in a short time interval. In this work we identify the uncertainty of purely quantum origin as the property responsible for Dicke superradiance. The quantum uncertainty on the population of each emitter of the sample captured by the Wigner-Yanase skew information (WYSI) is proportional to the correlation radiation rate, which is the part of the total radiated power coming from dipole correlations and responsible for releasing in a short time a great intensity of radiation energy. We also show that the correlation measure called local quantum uncertainty, which is the minimization of the WYSI over all local observables, presents a double sudden change induced by the environment. The time window between these two sudden changes is used to define the interval in which symmetric global observables of the system behave classically for N →∞ , although the emitters remain strongly quantum correlated.

  2. 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.

  3. 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.

  4. Henry's law constants of polyols

    NASA Astrophysics Data System (ADS)

    Compernolle, S.; Müller, J.-F.

    2014-05-01

    Henry's law constants (HLC) are derived for several polyols bearing between 2 and 6 hydroxyl groups, based on literature data for water activity, vapour pressure and/or solubility. Depending on the case, infinite dilution activity coefficients (IDACs), solid state pressures or activity coefficient ratios are obtained as intermediary results. For most compounds, these are the first values reported, while others compare favourably with literature data in most cases. Using these values and those from a previous work (Compernolle and Müller, 2014), an assessment is made on the partitioning of polyols, diacids and hydroxy acids to droplet and aqueous aerosol.

  5. 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.

  6. 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

  7. 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…

  8. 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....

  9. The Don Henry Story. Teaching with Documents.

    ERIC Educational Resources Information Center

    National Archives and Records Administration, Washington, DC.

    Don Henry was a student at the University of Kansas (Lawrence, Kansas) who experienced a profound political change during his years on campus. Henry became a leader in radical campus organizations, volunteered to fight in the Spanish Civil War with the Lincoln Brigade, and died on the battlefield in Aragon (Spain) in September 1937. An article in…

  10. 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…

  11. Henry (Hank) J. Moore (1928-1998)

    NASA Astrophysics Data System (ADS)

    Thompson, Thomas W.

    Henry (Hank) J. Moore, a member of the AGU Planetary Sciences section, died of a heart attack on September 21, 1998. He was in Utah while on a family trip to visit his daughter. His 70th birthday occurred just 3 weeks before his death. Henry, who was born in Albuquerque, New Mexico, took great pride in having found and visited the small town of Albuquerque in the Extremadura region of Spain, noting the geologic similarities between that part of Spain and his birthplace in America.Henry, known for his contributions to the Apollo,Viking, Magellan, and Mars Pathfinder missions, attributed his career to a chance encounter with Gene Shoemaker in 1960. Henry was completing his Ph.D. work in geology at Stanford University and Gene obviously had spotted Henry's keen analytical mind. I suspect this pivotal meeting was far from a chance encounter.

  12. Henry Leland (1923-2013).

    PubMed

    Rogers, Sally J

    2015-01-01

    This article memorializes Henry Leland (1923-2013). Leland was an advocate for persons with intellectual and developmental disabilities (IDD). He was a skilled clinician and developmentalist, and his application of play therapy to affect specific outcomes in children with IDD was far ahead of its time. His legacy is reflected in the current Diagnostic and Statistical Manual of Mental Disorders (5th ed.) definition of IDD, in which severity levels are defined by a person's current adaptive capacities rather than their IQ scores. It is reflected in the fact that many states in the country have no institutions at all for persons with IDD because community living and working are now the standard. It is reflected in the social justice actions supporting persons with IDD in prisons and on death row. It is reflected in the empirically supported and widely accepted practices involving service delivery to young children with IDD and their families through use of play strategies. PMID:25581008

  13. Henry's law constants of polyols

    NASA Astrophysics Data System (ADS)

    Compernolle, S.; Müller, J.-F.

    2014-12-01

    Henry's law constants (HLC) are derived for several polyols bearing between 2 and 6 hydroxyl groups, based on literature data for water activity, vapour pressure and/or solubility. While deriving HLC and depending on the case, also infinite dilution activity coefficients (IDACs), solid state vapour pressures or activity coefficient ratios are obtained as intermediate results. An error analysis on the intermediate quantities and the obtained HLC is included. For most compounds, these are the first values reported, while others compare favourably with literature data in most cases. Using these values and those from a previous work (Compernolle and Müller, 2014), an assessment is made on the partitioning of polyols, diacids and hydroxy acids to droplet and aqueous aerosol.

  14. 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 < ζ < 0.33 × 10-2 at the 68% confidence level (CL) and -0.01 × 10-2 < ζ < 0.43 × 10-2 at the 95% CL, where ζ is related to the BD parameter ω by ζ = ln(1 + 1/ω).

  15. Reactive flow modeling of initial density effect on divergence JB-9014 detonation driving

    NASA Astrophysics Data System (ADS)

    Yu, Xin; Huang, Kuibang; Zheng, Miao

    2016-06-01

    A serious of experiments were designed and the results were represented in this paper, in which 2mm thickness cooper shells were impacted by explosives named JB-9014 with different densities, and the surface velocities of the OFHC shells were measured. The comparison of experimental data shows the free surface velocity of the OFHC shell increase with the IHE density. Numerical modeling, which occupied phenomenological reactive flow rate model using the two-dimensional Lagrange hydrodynamic code, were carried out to simulate the above experiments, and empirical adjustments on detonation velocity and pressure and Pier Tang's adjustments on EOS of detonation products were both introduced in our numerical simulation work. The computational results agree well with that of experiments, and the numerical results with original parameters of products and the adjusted ones of JB-9014 could describe the density effect distinctly.

  16. Joseph Henry and the American Philosophical Society

    ERIC Educational Resources Information Center

    Gross, Walter E.

    1972-01-01

    A study of the extent to which Henry was affiliated with the Society and its influence on his work including his evolving relationship with the Society in the scope of the changing nature of American scientific institutions. (DF)

  17. 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-κB (NF-κB) 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-κB, 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

  18. 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.

  19. Dynamical phase transition in the open Dicke model.

    PubMed

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

    2015-03-17

    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

  20. 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.

  1. 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

  2. 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

  3. The elusive Henry Jones Shrapnell.

    PubMed

    McGovern, F H

    1983-07-01

    In a small series of articles published in The London Gazette in 1830 Henry Jones Shrapnell, surgeon, first described the correct form and structure of the tympanic membrane. He divided the drum membrane into two parts, the pars tensa and the pars flaccida. To this day the latter structure is known to every otologist and to most medical students as Shrapnell's membrane. In addition he wrote on the function of the membrana tympani, the nerves of the ear, and the true anatomy of the os incus. Heretofore the lenticular process of the incus was considered a separate bone in the ossicular chain. In spite of his distinctive contribution to medicine, a search of over a decade failed to uncover little basic information about Shrapnell's life, and for this reason he has been called by a distinguished librarian, the elusive Mr. Shrapnell. Recently, from my continued investigation, and with the help of many fine London scholars, a clearer picture has emerged of Shrapnell's forebearers, his family, his education and his death. PMID:6345977

  4. 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

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

    SciTech Connect

    Artymowski, Michał; Lalak, Zygmunt; Lewicki, Marek

    2015-06-17

    We consider the Brans-Dicke theory motivated by the f(R)=R+αR{sup n}−βR{sup 2−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 ω.

  6. Negative Correlations and Entanglement in Higher-Spin Dicke States

    NASA Astrophysics Data System (ADS)

    Wang, Xiaoqian; Zhong, Wei; Wang, Xiaoguang

    2016-06-01

    We consider entanglement criteria based on the spin squeezing inequalities for arbitrary spin systems. Here we use the negative correlations to detect the entanglement in the system with exchange symmetry. For arbitrary spin systems, we can find that the state is entangled, when the minimal pairwise correlation is negative. Then we give a parameter which is defined by the collective angular momentum operator, to detect the entanglement for the Dicke state with N spin -1 particles, and the results are as the same as negative correlation. We also consider the directions of negative correlation, the state is entangled in two orthogonal directions for the superposition of Dicke state without parity.

  7. Counterdiabatic driving in spin squeezing and Dicke-state preparation

    NASA Astrophysics Data System (ADS)

    Opatrný, Tomáš; Saberi, Hamed; Brion, Etienne; Mølmer, Klaus

    2016-02-01

    A method is presented to transfer a system of two-level atoms from a spin coherent state to a maximally spin squeezed Dicke state, relevant for quantum metrology and quantum information processing. The initial state is the ground state of an initial linear Hamiltonian that is gradually turned into a final quadratic Hamiltonian whose ground state is the selected Dicke state. We use compensating operators to suppress diabatic transitions to unwanted states that would occur if the change were not slow. We discuss the possibilities of constructing the compensating operators by sequential application of quadratic Hamiltonians available in experiments.

  8. Experimental Realization of Dicke States of up to Six Qubits for Multiparty Quantum Networking

    NASA Astrophysics Data System (ADS)

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

    2009-07-01

    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.

  9. William S. Gray and the Dick and Jane Readers.

    ERIC Educational Resources Information Center

    Mavrogenes, Nancy A.

    William S. Gray, Professor of Education and Dean of the College of Education at the University of Chicago, began work in 1929 on a major revision of the "Elson Readers," a popular basal series published by Scott, Foresman and Company. Organized around the daily life of two ordinary children, the "Dick and Jane" readers ultimately became the most…

  10. TEACHING "MOBY DICK," A METHOD AND AN APPROACH.

    ERIC Educational Resources Information Center

    JOSEPHS, LOIS

    "MOBY DICK" IS SINGULARLY APPROPRIATE FOR HIGH SCHOOL STUDENTS IN ITS PHILOSOPHICAL, PSYCHOLOGICAL, AND SOCIAL EMPHASIS. HOWEVER, TO GUIDE THE STUDENTS INTO THE THEMATIC INTRICACIES OF THE WORK, THE TEACHER MUST USE A CAREFULLY PLANNED, INDUCTIVE APPROACH THAT DEMANDS CLOSE TEXTUAL STUDY IN CLASS. ALTHOUGH EACH TEACHER SHOULD CONCENTRATE ON THE…

  11. Religion as a Quest for Wholeness: Melville's Moby-Dick

    ERIC Educational Resources Information Center

    Vaught, Carl G.

    1974-01-01

    Author attempted to indicate the ways in which Melville's novel, Moby-Dick, may be understood as a concrete embodiment of the religious quest, and as a set of clues about ways in which the language of a quest may finally be transcended. (Author/RK)

  12. 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…

  13. 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…

  14. 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)

  15. Joseph Henry's Conception of Scientific Knowledge

    NASA Astrophysics Data System (ADS)

    Theerman, Paul

    1997-04-01

    Joseph Henry, America's premier physicist and physics teacher in the mid-nineteenth century, had decided views of scientific knowledge. These were expressed in two ways. First of all, scientific knowledge led to moral betterment. Thus the study of science was a morally good thing. This was not only because it led to the contemplation of God's creation, which was a standard reason justifying the study of science dating from the Scientific Revolution and even earlier. More importantly, the study of science itself was a moral discipline, imparting to scientists the habits and virtues of truthfulness, respect for others, care and diligence, and the discernment of meaningful patterns from experience. The moral ideals of science were expressed most strongly in Henry's upholding the international "Republic of Science"; conversely, cheapening science was a sign of moral failure. Second, for Henry and his generation, science provided a path to sure truth, separate from falsehood of both the politics and the quackery that characterized mid-century public life. Henry promoted this in his championing of the Smithsonian Institution a scientific establishment, against the ideas of others who wanted to make it a literary establishment or a training school for teachers. For Henry, the Smithsonian's scientific reputation would be established by relying on careful peer review in its publications, and supporting established scientists to write authoritative popular works. The purpose of both these activities was to raise the profile of science in the United States and further establish science and the scientific method as a guide to public life.

  16. Xenobiotics enhance laccase activity in alkali-tolerant γ-proteobacterium JB

    PubMed Central

    Singh, Gursharan; Batish, Mona; Sharma, Prince; Capalash, Neena

    2009-01-01

    Various genotoxic textile dyes, xenobiotics, substrates (10 µM) and agrochemicals (100 µg/ml) were tested for enhancement of alkalophilic laccase activity in γ-proteobacterium JB. Neutral Red, Indigo Carmine, Naphthol Base Bordears and Sulphast Ruby dyes increased the activity by 3.7, 2.7, 2.6 and 2.3 fold respectively. Xenobiotics/substrates like p-toluidine, 8-hydroxyquinoline and anthracine increased it by 3.4, 2.8 and 2.3 fold respectively. Atrazine and trycyclozole pesticides enhanced the activity by 1.95 and 1.5 fold respectively. PMID:24031313

  17. 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.

  18. 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)

  19. 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 μg/ml, respectively. PMID:22038095

  20. Lou Henry Hoover and the Girl Scouts: A Tribute.

    ERIC Educational Resources Information Center

    McMullin, Dare Stark

    This booklet is a special tribute to Lou Henry Hoover, wife of President Herbert Hoover, from a close friend, social secretary, and chief research assistant to the First Lady. The small booklet provides a look at the social history of the era by focusing on Lou Henry Hoover and her interest in the outdoors. Lou Henry Hoover was the first women to…

  1. 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)

  2. 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…

  3. Henry James on the Art of Acting.

    ERIC Educational Resources Information Center

    Thompson, David W.

    Henry James, the nineteenth-century American novelist, also served on occasion as a theatre critic. Between 1875 and 1890 he reviewed several productions in Boston, New York, London, and Paris for "Atlantic Monthly" and other periodicals. The reviews are of interest because of James' high standards regarding acting and his often devasting comments…

  4. Livres d'Artiste: Henri Matisse, Jazz.

    ERIC Educational Resources Information Center

    Godlewski, Susan Glover

    1990-01-01

    Outlines the life of Henri Matisse and how he created his paper cut-outs, which were reproduced in a book. Discusses the importance of artists' books. Suggests some creative activities for all grades in book making and paper cut-outs that could be worked in conjunction with a language arts program. (KM)

  5. Henri Matisse's "Beasts of the Sea"

    ERIC Educational Resources Information Center

    Graff, Robert

    2010-01-01

    Henri Matisse (1869-1954) was a very prolific Impressionist/Post-Impressionist artist whose longevity allowed him to produce many wonderful, brightly colored pieces of art that spanned different styles, movements and media. Elementary-school children love color and appreciate any project that does not require their work to be exact or totally…

  6. 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…

  7. 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…

  8. Henri Hubert, racial science and political myth.

    PubMed

    Strenski, I

    1987-10-01

    Henri Hubert developed early Durkheimian critiques of racial sciences such as anthroposociology from his perspective as an archeologist, historian, and ethnographer of primitive European religions. His major works on the "primitive" Celts and Germans continue these critiques of racism. But Hubert also engaged in the political mythologizing of French national identity by trading in the republican myth of "celtisme." PMID:3312403

  9. Dicke simulators with emergent collective quantum computational abilities.

    PubMed

    Rotondo, Pietro; Cosentino Lagomarsino, Marco; Viola, Giovanni

    2015-04-10

    Using an approach inspired from spin glasses, we show that the multimode disordered Dicke model is equivalent to a quantum Hopfield network. We propose variational ground states for the system at zero temperature, which we conjecture to be exact in the thermodynamic limit. These ground states contain the information on the disordered qubit-photon couplings. These results lead to two intriguing physical implications. First, once the qubit-photon couplings can be engineered, it should be possible to build scalable pattern-storing systems whose dynamics is governed by quantum laws. Second, we argue with an example of how such Dicke quantum simulators might be used as a solver of "hard" combinatorial optimization problems. PMID:25910121

  10. Digital Quantum Rabi and Dicke Models in Superconducting Circuits

    NASA Astrophysics Data System (ADS)

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

    2014-12-01

    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.

  11. Information geometry and quantum phase transitions in the Dicke model.

    PubMed

    Dey, Anshuman; Mahapatra, Subhash; Roy, Pratim; Sarkar, Tapobrata

    2012-09-01

    We study information geometry of the Dicke model, in the thermodynamic limit. The scalar curvature R of the Riemannian metric tensor induced on the parameter space of the model is calculated. We analyze this both with and without the rotating wave approximation, and show that the parameter manifold is smooth even at the phase transition, and that the scalar curvature is continuous across the phase boundary. PMID:23030896

  12. Compilation of Henry's law constants, version 3.99

    NASA Astrophysics Data System (ADS)

    Sander, R.

    2014-11-01

    Many atmospheric chemicals occur in the gas phase as well as in liquid cloud droplets and aerosol particles. Therefore, it is necessary to understand the distribution between the phases. According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution. Henry's law constants of trace gases of potential importance in environmental chemistry have been collected and converted into a uniform format. The compilation contains 14775 values of Henry's law constants for 3214 species, collected from 639 references. It is also available on the internet at henrys-law.org">http://www.henrys-law.org.

  13. Brans–Dicke Galileon and the variational principle

    NASA Astrophysics Data System (ADS)

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

    2016-09-01

    This paper is aimed at a (mostly) pedagogical exposition of the derivation of the motion equations of certain modifications of general relativity. Here we derive in all detail the motion equations in the Brans–Dicke theory with cubic self-interaction. This is a modification of the Brans–Dicke theory by the addition of a term in the Lagrangian which is non-linear in the derivatives of the scalar field: it contains second-order derivatives. This is the basis of the so-called Brans–Dicke Galileon. We pay special attention to the variational principle and to the algebraic details of the derivation. It is shown how higher order derivatives of the fields appearing in the intermediate computations cancel out leading to second order motion equations. The reader will find useful tips for the derivation of the field equations of modifications of general relativity such as the scalar–tensor theories and f(R) theories, by means of the (stationary action) variational principle. The content of this paper is particularly recommended to those graduate and postgraduate students who are interested in the study of the mentioned modifications of general relativity.

  14. 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.

  15. 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

  16. Fyn Is a Novel Target of (−)-Epigallocatechin Gallate in the Inhibition of JB6 Cl41 Cell Transformation

    PubMed Central

    He, Zhiwei; Tang, Faqing; Ermakova, Svetlana; Li, Ming; Zhao, Qing; Cho, Yong-Yeon; Ma, Wei-Ya; Choi, Hong-Seok; Bode, Ann M.; Yang, Chung S.; Dong, Zigang

    2010-01-01

    The cancer preventive action of (−)-epigallocatechin gallate (EGCG), found in green tea, is strongly supported by epidemiology and laboratory research data. However, the mechanism by which EGCG inhibits carcinogenesis and cell transformation is not clear. In this study, we report that EGCG suppressed epidermal growth factor (EGF)-induced cell transformation in JB6 cells. We also found that EGCG inhibited EGF-induced Fyn kinase activity and phosphorylation in vitro and in vivo. Fyn was implicated in the process because EGF-induced JB6 cell transformation was inhibited by small interfering RNA (siRNA)-Fyn-JB6 cells. With an in vitro protein-binding assay, we found that EGCG directly bound with the GST-Fyn-SH2 domain but not the GST-Fyn-SH3 domain. The Kd value for EGCG binding to the Fyn SH2 domain was 0.367 ± 0.122 µM and Bmax was 1.35 ± 0.128 nmol/mg. Compared with control JB6 Cl41 cells, EGF-induced phosphorylation of p38 MAP kinase (p38 MAPK) (Thr180/Tyr182), ATF-2 (Thr71) and signal transducer and activator of transcription 1 (STAT1) (Thr727) was decreased in siRNA-Fyn-JB6 cells. EGCG could inhibit the phosphorylation of p38 MAPK, ATF-2, and STAT1. The DNA binding ability of AP-1, STAT1, and ATF-2 was also decreased in siRNA-Fyn-JB6 cells. Overall, these results demonstrated that EGCG interacted with Fyn and inhibited Fyn kinase activity and thereby regulated EGF-induced cell transformation. Inhibition of Fyn kinase activity is a novel and important mechanism that may be involved in EGCG-induced inhibition of cell transformation. PMID:18095272

  17. A New Empirical Thermospheric Density Model JB2006 using New Solar Indices

    NASA Technical Reports Server (NTRS)

    Bowman, Bruce R.; Tobiska, W. Kent; Marcos, Frank A.

    2006-01-01

    A new empirical atmospheric density model is developed using the CIRA72 (Jacchia 71) model as the basis for the diffusion equations. New solar indices based on orbit based sensor data are used for the solar irradiances in the extreme and far ultraviolet wavelengths. New exospheric temperature and semiannual density equations are employed to represent the major thermospheric density variations. Temperature correction equations are also developed for diurnal and latitudinal effects, and finally density correction factors are used for model corrections required at high altitude (1500-4000 km). The new model, Jacchia-Bowman 2006, is validated through comparisons of accurate daily density drag data previously computed for numerous satellite. For 400 km altitude the standard deviation of 16% for the standard Jacchia model is reduced to 10% for the new JB2006 model for periods of low geomagnetic storm activity.

  18. 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.

  19. 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

  20. 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

  1. 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.

  2. Henri Laborit and the inhibition of action

    PubMed Central

    Kunz, Edward

    2014-01-01

    Henri Laborit was one of the founders of modern neuropsychopharmacology, having discovered, or participated in, the discovery of chlorpromazine, gamma-OH, clomethiazole, and minaprine. He also put forward a theory regarding the necessity of counteracting the negative consequences of defense mechanisms during anesthesia or behavioral inhibition. The scope of his work covers neurophysiology, pharmacology, psychiatry, and psychosomatics. His independence of spirit meant that most of his research was not done within university settings. PMID:24733976

  3. The legacy of William Henry Welch.

    PubMed

    Malkin, H M

    2000-08-01

    This paper is a brief biography of William Henry Welch, generally considered not only the father of American pathology but also the dean of medicine in the United States during the first quarter of the 20th century. This biography emphasizes Welch's seldom-recognized contribution to the development and understanding of wound and surgical infection that resulted in the delayed universal acceptance of aseptic procedure by surgeons. PMID:10982305

  4. 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 ,ℓ )> are uniquely determined, among arbitrary states, by their (ℓ +1 ) -partite reduced density matrices, and (n -1 ℓ ) 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 (ℓ +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 ,ℓ )> . Moreover, we find two kinds of subsets of the (ℓ +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 ℓ ) .

  5. An instance of sleep paralysis in Moby-Dick.

    PubMed

    Herman, J

    1997-07-01

    It is suggested that picturesque medical conditions can, at times, be encountered in literary works composed prior to their clinical delineation. This is true of sleep paralysis, of which the first scientific description was given by Silas Weir Mitchell in 1876. A quarter of a century earlier, Herman Melville, in Moby-Dick, gave a precise account of a case, including the predisposing factors and sexual connotations, all in accord with modern theory. The details of Ishmael's attack of sleep paralysis, the stresses leading up to it, and the associations causing him to recall the experience are given here. PMID:9322274

  6. The limits of pity in Bartleby and Moby Dick.

    PubMed

    Rosenblatt, L

    2008-12-01

    Failures in the emotional connection between doctors and their patients tend to be reported in terms of compassion fatigue, burn-out, secondary trauma and depression in overlapping and somewhat interchangeable ways. In Moby Dick and Bartleby, Melville interrogates the culturally accepted descriptions of pity and explores the reasons for the limits in human pity he observed and depicted. In an attempt to understand whether the feelings of pity that a patient's suffering can evoke in physicians are sustainable, desirable, or counter-productive, Melville's narratives, along with that of a woman who, while living with advanced cancer experiences the breakdown of a key medical relationship, will be considered. PMID:23674582

  7. 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

  8. Stellar filaments in self-interacting Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, M.; Manzoor, Rubab

    2016-05-01

    This paper is devoted to the study of the cylindrically symmetric stellar filaments in self-interacting Brans-Dicke gravity. For this purpose, we construct polytropic filamentary models through a generalized Lane-Emden equation in the Newtonian regime. The resulting models depend upon the values of the cosmological constant (due to the scalar field) along with the polytropic index and represent a generalization of the corresponding models in general relativity. We also investigate the fragmentation of the filaments by exploring the radial oscillations through a stability analysis. This stability criterion depends only upon the adiabatic index.

  9. Purification and characterization of the extracellular alpha-amylase from Streptococcus bovis JB1.

    PubMed Central

    Freer, S N

    1993-01-01

    The extracellular alpha-amylase (1,4-alpha-D-glucanglucanohydrolase; EC 3.2.1.1) from maltose-grown Streptococcus bovis JB1 was purified to apparent homogeneity by ion-exchange chromatography (Mono Q). The enzyme had an isoelectric point of 4.50 and an apparent molecular mass of 77,000 Da, as estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The enzyme was rich in acidic and hydrophobic amino acids. The 15-amino-acid NH2-terminal sequence was 40% homologous with the Bacillus subtilis saccharifying alpha-amylase and 27% homologous with the Clostridium acetobutylicum alpha-amylase. alpha-Amylase activity on soluble starch was optimal at pH 5.0 to 6.0. The enzyme was relatively stable between pH 5.5 and 8.5 and at temperatures below 50 degrees C. When soluble potato starch was used as the substrate, the enzyme had a Km of 0.88 mg.ml-1 and a kcat of 2,510 mumol of reducing sugar.min-1.mg of protein-1. The enzyme exhibited neither pullulanase nor dextranase activity and was 40 to 70% as active on amylopectin as on amylose. The major end products of amylose hydrolysis were maltose, maltotriose, and maltotetraose. Images PMID:8517735

  10. Vanadate induces apoptosis in epidermal JB6 P+ cells via hydrogen peroxide-mediated reactions.

    PubMed

    Ye, J; Ding, M; Leonard, S S; Robinson, V A; Millecchia, L; Zhang, X; Castranova, V; Vallyathan, V; Shi, X

    1999-12-01

    Apoptosis is a physiological mechanism for the control of DNA integrity in mammalian cells. Vanadium induces both DNA damage and apoptosis. It is suggested that vanadium-induced apoptosis serves to eliminate DNA-damaged cells. This study is designed to clarify a role of reactive oxygen species in the mechanism of apoptosis induced by vanadium. We established apoptosis model with murine epidermal JB6 P+ cells in the response to vanadium stimulation. Apoptosis was detected by a cell death ELISA assay and morphological analysis. The result shows that apoptosis induced by vanadate is dose-dependent, reaching its saturation level at a concentration of 100 microM vanadate. Vanadyl (IV) can also induce apoptosis albeit with lesser potency. A role of reactive oxygen species was analyzed by multiple reagents including specific scavengers of different reactive oxygen species. The result shows that vanadate-induced apoptosis is enhanced by NADPH, superoxide dismutase and sodium formate, but was inhibited by catalase and deferoxamine. Cells exposed to vanadium consume more molecular oxygen and at the same time, produce more H2O2 as measured by the change in fluorescence of scopoletin in the presence of horseradish peroxidase. This change in oxygen consumption and H2O2 production is enhanced by NADPH. Taken together, these results show that vanadate induces apoptosis in epidermal cells and H2O2 induced by vanadate plays a major role in this process. PMID:10705990

  11. Eupatilin inhibits EGF-induced JB6 cell transformation by targeting PI3K.

    PubMed

    Li, Feng; Tao, Ya; Qiao, Yan; Li, Ke; Jiang, Yanan; Cao, Chang; Ren, Shuxin; Chang, Xiaobin; Wang, Xiaona; Wang, Yanhong; Xie, Yifei; Dong, Ziming; Zhao, Jimin; Liu, Kangdong

    2016-09-01

    Phosphatidylinositol 3-kinases (PI3Ks) are lipid kinases that play fundamental roles in regulation of multiple signaling pathways, including cell proliferation, survival and cell cycle. Increasing evidence has shown that abnormal activation of PI3K pathway contributes to tumorigenesis and progression of various malignant tumors. Therefore, it is an attractive target of chemoprevention and chemotherapy. Eupatilin, a natural flavone compound extracted from Artemisia vulgaris, has antitumor and anti-inflammation efficacy. However, the direct target(s) of eupatilin in cancer chemoprevention are still elusive. In the present study, we reported eupatilin suppressed JB6 cell proliferation and its EGF-induced colony formation. Eupatilin attenuated phosphorylation of PI3K downstream signaling molecules. Downregulation of cyclin D1 expression and arresting in G1 phase were induced through eupatilin treatment. Furthermore, we found it could bind to the p110α, a catalytic subunit of PI3K, by computational docking methods. Pull down assay outcomes also verified the binding of eupatilin with PI3K. Taken together, our results suggest that epatilin is a potential chemopreventive agent in inhibition of skin cell transformation by targeting PI3K. PMID:27573489

  12. Purification and characterization of the extracellular alpha-amylase from Streptococcus bovis JB1.

    PubMed

    Freer, S N

    1993-05-01

    The extracellular alpha-amylase (1,4-alpha-D-glucanglucanohydrolase; EC 3.2.1.1) from maltose-grown Streptococcus bovis JB1 was purified to apparent homogeneity by ion-exchange chromatography (Mono Q). The enzyme had an isoelectric point of 4.50 and an apparent molecular mass of 77,000 Da, as estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The enzyme was rich in acidic and hydrophobic amino acids. The 15-amino-acid NH2-terminal sequence was 40% homologous with the Bacillus subtilis saccharifying alpha-amylase and 27% homologous with the Clostridium acetobutylicum alpha-amylase. alpha-Amylase activity on soluble starch was optimal at pH 5.0 to 6.0. The enzyme was relatively stable between pH 5.5 and 8.5 and at temperatures below 50 degrees C. When soluble potato starch was used as the substrate, the enzyme had a Km of 0.88 mg.ml-1 and a kcat of 2,510 mumol of reducing sugar.min-1.mg of protein-1. The enzyme exhibited neither pullulanase nor dextranase activity and was 40 to 70% as active on amylopectin as on amylose. The major end products of amylose hydrolysis were maltose, maltotriose, and maltotetraose. PMID:8517735

  13. 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

  14. Dynamical complexity of the Brans-Dicke cosmology

    NASA Astrophysics Data System (ADS)

    Hrycyna, Orest; Szydłowski, 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 ωBD 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 ωBD < -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.

  15. Simulating Dicke-like superradiance with classical light sources

    NASA Astrophysics Data System (ADS)

    Bhatti, D.; Oppel, S.; Wiegner, R.; Agarwal, G. S.; von Zanthier, J.

    2016-07-01

    In this paper we investigate the close relationship between Dicke superradiance, originally predicted for an ensemble of two-level atoms in entangled states, and the Hanbury Brown and Twiss effect, initially established in astronomy to determine the dimensions of classical light sources such as stars. By studying the state evolution of the fields produced by classical sources—defined by a positive Glauber-Sudarshan P function—when recording intensity correlations of higher order in a generalized Hanbury Brown and Twiss setup we find that the angular distribution of the last detected photon, apart from an offset, is identical to the superradiant emission pattern generated by an ensemble of two-level atoms in entangled symmetric Dicke states. We show that the phenomenon derives from projective measurements induced by the measurement of photons in the far field of the sources and the permutative superposition of quantum paths identical to those leading to superradiance in the case of single photon emitters. We thus point out an important similarity between classical sources and quantum emitters upon detection of photons if the particular photon source remains unknown. We finally present a compact result for the characteristic functional which generates intensity correlations of arbitrary order for any kind of light source.

  16. Stationary axially symmetric solutions in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Kirezli, Pınar; 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.

  17. Dynamical complexity of the Brans-Dicke cosmology

    SciTech Connect

    Hrycyna, Orest; Szydłowski, 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 ω{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 ω{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.

  18. The medical life of Henry Norman Bethune

    PubMed Central

    Deslauriers, Jean; Goulet, Denis

    2015-01-01

    BACKGROUND: Henry Norman Bethune is one of the most exciting and incredible surgeons that Canada has ever produced. Indeed, he is often characterized as one of the world’s best-known surgeons. He was an innovator and his scientific contributions have stood the test of time. In Canada, he will forever be remembered as a social activist committed to the welfare of the poor and to the reform of the health care system. In the People’s Republic of China, he is idolized and remains the only foreigner to ever become a national hero. OBJECTIVE: To detail the numerous and significant achievements of Henry Norman Bethune in the field of thoracic surgery and as a social activist and describe his heroic war-time actions on the battlefields of both Spain and China. METHOD: Information was gathered through the reading of the numerous publications written about the life and work of Bethune, interviews with knowledgeable people from Canadian and Chinese universities, analysis of Bethune’s own publications, and extensive experience of one of the authors in China. RESULTS: In the social sense, Henry Norman Bethune had a difficult personality, but he was deeply caring about the plight of his patients, especially the poor. As a thoracic surgeon, he could be ingenious, thoughtful and effective but he could also be abrasive, restless and temperamental. His scientific contributions were sound and, at the time, gained worldwide attention. As an activist, he led a crusade to reform the Canadian health care system, demanding free health care for all. His outstanding work during the Spanish Civil War, where he organized the first ever mobile blood transfusion unit, and during the Sino-Japanese war, where he was totally committed to the welfare of both soldiers and civilian population, were deliberate acts of resistance against Fascist onslaught and enthusiasm for the Communist cause. CONCLUSIONS: Henry Norman Bethune was unconventional and a revolutionary, but he was brilliant. He will

  19. The operation and death of Henry Schliemann.

    PubMed

    McGovern, F H

    1977-10-01

    Henry Schliemann's reputation as an archeologist, a linquist, a financial genius and a scholar is seldom recognized by Americans. His discovery of the ruins of Troy changed Homeric myths and legends into history and made him the founder of Aegean archeology. Recent popular books on Schliemann sketchily describe him otologic problems which eventually led to his death of an otogenic brain abscess. From a number of bibliographic sources, the details of Schliemann's ear history and the final months of his illness are recounted. The important information of Schliemann's ear operation by the famous Professor Swartze is presented. PMID:333214

  20. Dialogue of Differences: The Writing of Henry Holmes Smith.

    ERIC Educational Resources Information Center

    Bossen, Howard

    In addition to surveying the writings of Henry Holmes Smith, this paper explains his importance as a theoretician and practitioner of photography. After a discussion of Smith's ideas on "reading photographs" and his concerns with the ethics of photography, particularly of photojournalism, the essays in the book, "Henry Holmes Smith: Selected…

  1. The Rice University Press Initiative: An Interview with Charles Henry

    ERIC Educational Resources Information Center

    Trevitte, Chad; Henry, Charles

    2007-01-01

    In this interview Charles Henry, publisher of the Rice University Press (RUP), discusses RUP's rebirth as a fully digital university press. Henry addresses the circumstances that led to this decision, and he further outlines the RUP business model whereby the press will publish its own titles--both digitally and in print-on-demand--while…

  2. Memory Drum Theory's C Movement: Revelations from Franklin Henry

    ERIC Educational Resources Information Center

    Fischman, Mark G.; Christina, Robert W.; Anson, J. Greg

    2008-01-01

    Franklin Henry's "memory drum" theory of neuromotor reaction (Henry & Rogers, 1960) was one of the most influential studies of the response programming stage of information processing. The paper is the most-cited study ever published in the "Research Quarterly for Exercise and Sport." However, few people know there is a noteworthy error in the…

  3. Henry Hudson Bridge over Harlem River Shipping Canal at confluence ...

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

    Henry Hudson Bridge over Harlem River Shipping Canal at confluence with Hudson River, from Isham Park, view northeast. Inwood Hill Park on left, Spuyten Duyvil Shorefront Park on right, Palisades Interstate Park in background. - Henry Hudson Parkway, Extending 11.2 miles from West 72nd Street to Bronx-Westchester border, New York County, NY

  4. 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.

  5. 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...

  6. Henry Hudson Bridge upper deck and pedestrian walkway showing parapets ...

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

    Henry Hudson Bridge upper deck and pedestrian walkway showing parapets with pipe rails. View of Inwood Hill Park in background, with a faint view of the Empire State Building amidst distant highrises at left, looking south. - Henry Hudson Parkway, Extending 11.2 miles from West 72nd Street to Bronx-Westchester border, New York County, NY

  7. 77 FR 70159 - Knueppel, Henry W.; Notice of Filing

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Knueppel, Henry W.; Notice of Filing Take notice that on November 15, 2012, Henry W. Knueppel submitted for filing, an application for authority to hold interlocking...

  8. Teaching Students about the Environment with Henry David Thoreau

    ERIC Educational Resources Information Center

    Curriculum Review, 2008

    2008-01-01

    "Walden: The Ballad of Thoreau" is a two-act four-character play about the final two days writer Henry David Thoreau spent in his cabin before leaving Walden Pond. Teachers can use this play to teach about preserving the earth to students. This article presents a brief synopsis of the play and a brief biography of Henry David Thoreau.

  9. 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

  10. A novel chimeric prophage vB_LdeS-phiJB from commercial Lactobacillus delbrueckii subsp. bulgaricus.

    PubMed

    Guo, Tingting; Zhang, Chenchen; Xin, Yongping; Xin, Min; Kong, Jian

    2016-05-01

    Prophage vB_LdeS-phiJB (phiJB) was induced by mitomycin C and UV radiation from the Lactobacillus delbrueckii subsp. bulgaricus SDMCC050201 isolated from a Chinese yoghurt sample. It has an isometric head and a non-contractile tail with 36,969 bp linear double-stranded DNA genome, which is classified into the group a of Lb. delbrueckii phages. The genome of phiJB is highly modular with functionally related genes clustered together. Unexpectedly, there is no similarity of its DNA replication module to any phages that have been reported, while it consists of open-reading frames homologous to the proteins of Lactobacillus strains. Comparative genomic analysis indicated that its late gene clusters, integration/lysogeny modules and DNA replication module derived from different evolutionary ancestors and integrated into a chimera. Our results revealed a novel chimeric phage of commercial Lb. delbrueckii and will broaden the knowledge of phage diversity in the dairy industry. PMID:26831651

  11. 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

  12. The deviation of light path in Einstein-Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Huang, Z. G.; Lu, H. Q.; Pan, P. P.

    2005-02-01

    Both Jordan-Brans-Dicke (shortened JBD) theory and Brans-Dicke theory in the Einstein’s frame (shortened EBD) are treated as Brans-Dicke theory. However, we learn that only Pauli metric represents the massless spin-two graviton and thus, should be identified as physical. If one just considers the weak field approximation and Newtonian limit, EBD theory gives the same results with Einstein’s general relativity. So, it is necessary to consider strong field effects and cosmological model. The purpose of this paper is to find the exact spherically symmetric metric in the strong field situation, and deduce the deviation of light path in EBD theory.

  13. Henry VIII, McLeod syndrome and Jacquetta's curse.

    PubMed

    Stride, P; Lopes Floro, K

    2013-01-01

    The mental decline of King Henry VIII from being a jovial, charismatic and athletic young man into an increasingly paranoid, brutal tyrant in later life, ever more concerned at his lack of one or more male heirs, has attracted many medical diagnostic theories. Previous hypotheses have included diabetes, syphilis and hypothyroidism, among others. However, these inadequately explain Henry's failure to produce a male heir, despite multiple pairings. The latest postulated diagnoses for Henry are the coexistence of both Kell blood group antigenicity (possibly inherited from Jacquetta Woodville, Henry's maternal great grandmother) causing related impaired fertility, and McLeod syndrome, causing psychotic changes. As the mutated McLeod protein of the syndrome significantly reduces the expression, effectively inactivating the Kell antigen, we critically review this theory, examining in detail the pathophysiology of these conditions and assessing the genealogy of Henry VIII and its effect in subsequent generations. PMID:24350322

  14. 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.

  15. Cosmic string configuration in a five dimensional Brans-Dicke theory

    SciTech Connect

    Bezerra, V. B.; Ferreira, C. N.; Marques, G. de A

    2010-01-15

    We consider a scalar field interacting with a cosmic string configuration. The origin of the scalar field is given by a compactification mechanism in the context of a five-dimensional Brans-Dicke theory. We analyze the behavior of a charged cosmic string given by the Maxwell-Chern-Simons term on the 3-brane. The Cosmic Microwave Background Radiation constraint is used to analyze the possibility of optical activity effect in connection with the Brans-Dicke parameter {omega}. We show that the dilatons produced by a cosmic string can decay into gauge bosons with masses given by the compactification modes. The Brans-Dicke parameter {omega} imposes stringent constraints on the mass of the dilaton and help us to understand the energy scales. In this scenario the lifetime of the dilaton which decays into light gauge bosons as well as the dependence of this phenomenon with the Brans-Dicke parameter are estimated.

  16. Henry Oldenburg - Shaping the Royal Society

    NASA Astrophysics Data System (ADS)

    Boas Hall, Marie

    2002-03-01

    Henry Oldenburg, born in 1619 in Bremen, Germany, first came to England as a diplomat on a mission to see Oliver Cromwell. He stayed on in England and in 1662 became the Secretary of the Royal Society, and its best known member to the entire learned world of his time. Through his extensive correspondence, now published, he disseminated the Society's ideals and methods at home and abroad. He fostered and encouraged the talents of many scientists later to be far more famous than he, including Newton, Flamsteed, Malpighi, and Leeuwenhoek with whom, as with many others, he developed real friendship. He founded and edited the Philosophical Transactions, the world's oldest scientific journal.His career sheds new light on the intellectual world of his time, especially its scientific aspects, and on the development of the Royal Society; his private life expands our knowledge of social mobility, the urban society, and the religious views of his time.

  17. 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

  18. 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.

  19. 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

  20. Local cosmic strings in Brans-Dicke theory with a cosmological constant

    SciTech Connect

    Delice, Oezguer

    2006-09-15

    It is known that Vilenkin's phenomenological equation of state for static straight cosmic strings is inconsistent with Brans-Dicke theory. We will prove that, in the presence of a cosmological constant, this equation of state is consistent with Brans-Dicke theory. The general solution of the full nonlinear field equations, representing the interior of a cosmic string with a cosmological constant, is also presented.

  1. Cosmic microwave background with Brans-Dicke gravity. I. Covariant formulation

    NASA Astrophysics Data System (ADS)

    Wu, Feng-Quan; Qiang, Li-E.; Wang, Xin; Chen, Xuelei

    2010-10-01

    In the covariant cosmological perturbation theory, a 1+3 decomposition ensures that all variables in the frame-independent equations are covariant and gauge invariant and that they have clear physical interpretations. We develop this formalism in the case of Brans-Dicke gravity, and apply this method to the calculation of CMB anisotropy and large scale structures. We modify the publicly available Boltzmann code CAMB to calculate numerically the evolution of the background and adiabatic perturbations, and obtain the temperature and polarization spectra of Brans-Dicke theory for both scalar and tensor modes; the tensor mode results for Brans-Dicke gravity are obtained numerically for the first time. We first present our theoretical formalism in detail, and then explicitly describe the techniques used in modifying the CAMB code. These techniques are also very useful for other gravity models. Next we compare the CMB and large scale structure spectra in Brans-Dicke theory with those in the standard general relativity theory. At last, we investigate the integrated Sachs-Wolfe effect and the CMB lensing effect in Brans-Dicke theory. Constraints on the Brans-Dicke model with current observational data are presented in a companion paper [F. Wu and X. Chen, following Article, Phys. Rev. D 82, 083003 (2010)] (paper II).

  2. 1. Henry Beardsley standing in front of his store in ...

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

    1. Henry Beardsley standing in front of his store in Ohio. Photographer unknown, 1887. Source: William M. Beardsley - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

  3. James McHenry, MD: physician, patriot, politician and poet.

    PubMed

    Spiegel, Allen D; Kavaler, Florence

    2003-08-01

    James McHenry emigrated from Ireland to the American colonies in 1771. He studied medicine with Dr. Benjamin Rush in Philadelphia and immediately volunteered as an Army surgeon when the Revolutionary War began. After serving in the medical department in Massachusetts, New York and at Valley Forge in Pennsylvania, he became an aide to General George Washington and subsequently an aide to the Marquis de Lafayette. President Washington appointed McHenry Secretary of War and he continued in that post under president John Adams. While Secretary, he revised military regulations, established a professional standing Army, pacified the Indians, enlarged the naval forces, organized the armed forces under civilian authority and initiated plans for a military academy. Baltimore's Fort Whetstone was renamed Fort McHenry in his honor. During the War of 1812, Fort McHenry gained fame as the birthplace of the national anthem of the United States. PMID:12856797

  4. Henri Poincaré: Death centenary (1854-1912)

    NASA Astrophysics Data System (ADS)

    Heinzmann, Gerhard; Villani, Cédric

    2014-08-01

    The year 2012 marked the centenary of the death of Henri Poincaré (Nancy, 1854-Paris, 1912), and through the agency of the Henri-Poincaré Institute in Paris, the Henri-Poincaré Archives in Nancy and The London Mathematical Society, brought with it several exhibitions and meetings commemorating one of the greatest minds in contemporary times. Often referred to as the last polymath, Poincaré embraced multiple branches of mathematics, theoretical physics and celestial mechanics, and made significant contributions to philosophy of science (Heinzmann & Stump, Henri Poincaré, 2013). He wrote 25 textbooks and monographs, 500-plus articles, and was deeply involved in the organization and administration of science at both the national and international levels.1

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

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

    12. Historic American Buildings Survey Photographed by Henry F. Withey May 1937 S. W. CORRIDOR OF PATIO. - Casa del Rancho Santa Margarita y Los Flores, U.S. Highway 101, Oceanside, San Diego County, CA

  6. 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 May 1937 GENERAL VIEW (FROM SOUTH) - Casa del Rancho Santa Margarita y Los Flores, U.S. Highway 101, Oceanside, San Diego County, CA

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

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

    7. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 VIEW OF SANCTUARY OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  8. 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 June 1936 NORTH FACADE OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  9. 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 June 1936 EAST FACADE OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  10. 9. Historic American Buildings Survey Photographed by Henry F. Withey ...

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

    9. Historic American Buildings Survey Photographed by Henry F. Withey April 1937 RUINS OF TANNERY (FROM WEST CORNER) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  11. 8. Historic American Buildings Survey Photographed by Henry F. Withey ...

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

    8. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 SANCTUARY OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

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

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

    4. Historic American Buildings Survey Photographed by Henry F. Withey April 1937 RUINS OF SMITHY FROM SO. WEST CORNER. - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  13. 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 April 1937. RUINS OF SMITHY (LOOKING S.W.) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

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

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

    4. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 WEST FACADE OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  15. 9. Historic American Buildings Survey Photographed by Henry F. Withey ...

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

    9. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 PULPIT IN SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

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

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

    6. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 INTERIOR OF SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange 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 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

  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 April 1937 RUINS OF FOUNTAIN, SMITHY AND SOAP FACTORY (LOOKING EAST) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  19. 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 April 1937 RUINS OF SMITHY AND SOAP FACTORY (LOOKING SOUTH) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  20. 8. Historic American Buildings Survey Photographed by Henry F. Withey ...

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

    8. Historic American Buildings Survey Photographed by Henry F. Withey April 1937 RUINS OF SOAP FACTORY FROM EAST CORNER. - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

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

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

    7. Historic American Buildings Survey Photographed by Henry F. Withey April 1937 RUINS OF SOAP FACTORY (S. W. Side) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  2. 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

  3. 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

  4. Non-Singular BRANS-DICKE-Λ 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 ΛCDM 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.

  5. Rotating black branes in Brans-Dicke-Born-Infeld theory

    NASA Astrophysics Data System (ADS)

    Hendi, S. H.

    2008-08-01

    In this paper, we present a new class of charged rotating black brane solutions in the higher dimensional Brans-Dicke-Born-Infeld theory and investigate their properties. Solving the field equations directly is a nontrivial task because they include the second derivatives of the scalar field. We remove this difficulty through a conformal transformation. Also, we find that the suitable Lagrangian of Einstein-Born-Infeld-dilaton gravity is not the same as presented by Dehghani et al. [J. Cosmol. Astropart. Phys. 0702, 020 (2007)]. We show that the given solutions can present black brane, with inner and outer event horizons, an extreme black brane, or a naked singularity provided the parameters of the solutions are chosen suitably. These black brane solutions are neither asymptotically flat nor (anti-)de Sitter. Then we calculate finite Euclidean action, the conserved, and thermodynamic quantities through the use of counterterm method. Finally, we argue that these quantities satisfy the first law of thermodynamics, and the entropy does not follow the area law.

  6. 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.

  7. From the Jaynes-Cummings-Hubbard to the Dicke model

    NASA Astrophysics Data System (ADS)

    Schmidt, S.; Blatter, G.; Keeling, J.

    2013-11-01

    We discuss the Jaynes-Cummings-Hubbard model describing the superfluid-Mott insulator transition of polaritons (i.e., dressed photon-qubit states) in coupled qubit-cavity arrays in the crossover from strong to weak correlations. In the strongly correlated regime the phase diagram and the elementary excitations of lattice polaritons near the Mott lobes are calculated analytically using a slave-boson theory (SBT). The opposite regime of weakly interacting polariton superfluids is described by a weak-coupling mean-field theory for a generalized multi-mode Dicke model. We show that a remarkable relation between the two theories exists in the limit of large photon bandwidth and large negative detuning, i.e., when the nature of polariton quasiparticles becomes qubit-like. In this regime, the weak-coupling theory predicts the existence of a single Mott lobe with a change of the universality class of the phase transition at the tip of the lobe, in perfect agreement with the SBT. Moreover, the spectra of low energy excitations, i.e., the sound velocity of the Goldstone mode and the gap of the amplitude mode match exactly as calculated from both theories.

  8. Shot noise in quantum dots in presence of Fano and Dicke effects in Kondo regime

    NASA Astrophysics Data System (ADS)

    Orellana, Pedro; Cortes, Natalia; Apel, Victor

    The quantum dots allow studying systematically quantum-interference effects as Fano and Dicke effects due to the possibility of continuous tuning the relevant parameters governing the properties of these resonances, in equilibrium and nonequilibrium regimes. The condition for the Fano resonance is the existence of two scattering channels: a discrete level and a broad continuum band. On the other hand, the electronic version of the Dicke effect is analogous to the Dicke effect in optics, which takes place in the spontaneous emission of two closely-lying atoms radiating a photon into the same environment. In quantum dots this effect is due to quantum interference in the passage of an electron through two closely lying resonant states of the quantum dots coupled to common leads. In this work, we present a systematic investigation of the influence of the Dicke effect on shot-noise and Fano factor in a cross-shaped quantum dot array. The relevant quantities are obtained by the non-equilibrium Green's function technique. Our results show that at zero temperature, the electrical current, shot-noise and Fano factor exhibit characteristics of the Dicke effect. This work was partially supported by FONDECYT under Grant 140571.

  9. NOTE: Some power-law cosmological solutions derived from the 5D Brans-Dicke vacuum theory

    NASA Astrophysics Data System (ADS)

    Lee, Tae Hoon

    2009-07-01

    We solve vacuum field equations in five-dimensional Brans-Dicke gravity to find power-law growth for the cosmological scale factor, with the range of its parameter values extended by the Brans-Dicke field. We discuss its implications for the onset of late-time cosmic acceleration.

  10. 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

  11. 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 ω{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.

  12. Cosmology of some holographic dark energy models in chameleonic Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, M.; Waheed, Saira

    2013-11-01

    We study some holographic dark energy models in chameleonic Brans-Dicke field gravity by taking interaction between the dark energy components in FRW universe. Firstly, we take the holographic dark energy model with Granda-Oliveros cut-off and discuss interacting as well as non-interacting cases. Secondly, we consider the holographic dark energy with both power-law as well as logarithmic corrections using Hubble scale as infrared cut-off in interacting case only. We describe the evolution of some cosmological parameters for these holographic dark energy models. It is concluded that the phantom crossing can be achieved more easily in the presence of chameleonic Brans-Dicke field as compared to simple Brans-Dicke as well as Einstein's gravity. Also, the deceleration parameter strongly confirms the accelerated expanding behavior of the universe.

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

    NASA Astrophysics Data System (ADS)

    ten Brinke, Nicolai; Schützhold, Ralf

    2016-04-01

    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.

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

    NASA Astrophysics Data System (ADS)

    Brinke, Nicolai ten; Schützhold, Ralf

    2016-05-01

    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.

  15. Late time cosmic acceleration from vacuum Brans-Dicke theory in 5D

    NASA Astrophysics Data System (ADS)

    Ponce de Leon, J.

    2010-05-01

    We show that the scalar-vacuum Brans-Dicke equations in 5D are equivalent to Brans-Dicke theory in 4D with a self-interacting potential and an effective matter field. The cosmological implication, in the context of FRW models, is that the observed accelerated expansion of the universe comes naturally from the condition that the scalar field is not a ghost, i.e. ω > -3/2. We find an effective matter-dominated 4D universe which shows accelerated expansion if -3/2 < ω < -1. We study the question of whether accelerated expansion can be made compatible with large values of ω, within the framework of a 5D scalar-vacuum Brans-Dicke theory with variable, instead of constant, parameter ω. In this framework, and based on a general class of solutions of the field equations, we demonstrate that accelerated expansion is incompatible with large values of ω.

  16. Human Dendritic Cell DC-SIGN and TLR-2 Mediate Complementary Immune Regulatory Activities in Response to Lactobacillus rhamnosus JB-1

    PubMed Central

    Konieczna, Patrycja; Schiavi, Elisa; Ziegler, Mario; Groeger, David; Healy, Selena; Grant, Ray; O’Mahony, Liam

    2015-01-01

    The microbiota is required for optimal host development and ongoing immune homeostasis. Lactobacilli are common inhabitants of the mammalian large intestine and immunoregulatory effects have been described for certain, but not all, strains. The mechanisms underpinning these protective effects are beginning to be elucidated. One such protective organism is Lactobacillus rhamnosus JB-1 (Lb. rhamnosus JB-1). Lb. murinus has no such anti-inflammatory protective effects and was used as a comparator organism. Human monocyte-derived dendritic cells (MDDCs) were co-incubated with bacteria and analysed over time for bacterial adhesion and intracellular processing, costimulatory molecule expression, cytokine secretion and induction of lymphocyte polarization. Neutralising antibodies were utilized to identify the responsible MDDC receptors. Lb. rhamnosus JB-1 adhered to MDDCs, but internalization and intracellular processing was significantly delayed, compared to Lb. murinus which was rapidly internalized and processed. Lb. murinus induced CD80 and CD86 expression, accompanied by high levels of cytokine secretion, while Lb. rhamnosus JB-1 was a poor inducer of costimulatory molecule expression and cytokine secretion. Lb. rhamnosus JB-1 primed MDDCs induced Foxp3 expression in autologous lymphocytes, while Lb. murinus primed MDDCs induced Foxp3, T-bet and Ror-γt expression. DC-SIGN was required for Lb. rhamnosus JB-1 adhesion and influenced IL-12 secretion, while TLR-2 influenced IL-10 and IL-12 secretion. Here we demonstrate that the delayed kinetics of bacterial processing by MDDCs correlates with MDDC activation and stimulation of lymphocytes. Thus, inhibition or delay of intracellular processing may be a novel strategy by which certain commensals may avoid the induction of proinflammatory responses. PMID:25816321

  17. Human dendritic cell DC-SIGN and TLR-2 mediate complementary immune regulatory activities in response to Lactobacillus rhamnosus JB-1.

    PubMed

    Konieczna, Patrycja; Schiavi, Elisa; Ziegler, Mario; Groeger, David; Healy, Selena; Grant, Ray; O'Mahony, Liam

    2015-01-01

    The microbiota is required for optimal host development and ongoing immune homeostasis. Lactobacilli are common inhabitants of the mammalian large intestine and immunoregulatory effects have been described for certain, but not all, strains. The mechanisms underpinning these protective effects are beginning to be elucidated. One such protective organism is Lactobacillus rhamnosus JB-1 (Lb. rhamnosus JB-1). Lb. murinus has no such anti-inflammatory protective effects and was used as a comparator organism. Human monocyte-derived dendritic cells (MDDCs) were co-incubated with bacteria and analysed over time for bacterial adhesion and intracellular processing, costimulatory molecule expression, cytokine secretion and induction of lymphocyte polarization. Neutralising antibodies were utilized to identify the responsible MDDC receptors. Lb. rhamnosus JB-1 adhered to MDDCs, but internalization and intracellular processing was significantly delayed, compared to Lb. murinus which was rapidly internalized and processed. Lb. murinus induced CD80 and CD86 expression, accompanied by high levels of cytokine secretion, while Lb. rhamnosus JB-1 was a poor inducer of costimulatory molecule expression and cytokine secretion. Lb. rhamnosus JB-1 primed MDDCs induced Foxp3 expression in autologous lymphocytes, while Lb. murinus primed MDDCs induced Foxp3, T-bet and Ror-γt expression. DC-SIGN was required for Lb. rhamnosus JB-1 adhesion and influenced IL-12 secretion, while TLR-2 influenced IL-10 and IL-12 secretion. Here we demonstrate that the delayed kinetics of bacterial processing by MDDCs correlates with MDDC activation and stimulation of lymphocytes. Thus, inhibition or delay of intracellular processing may be a novel strategy by which certain commensals may avoid the induction of proinflammatory responses. PMID:25816321

  18. Five dimensional spherically symmetric cosmological model in Brans-Dicke theory of gravitation

    NASA Astrophysics Data System (ADS)

    Rao, V. U. M.; Jaysudha, V.

    2015-08-01

    In this paper, we consider the spherically symmetric space-time in five dimensions in Brans-Dicke (Phys. Rev. 124:925, 1961) theory of gravitation in the presence of perfect fluid distribution. A determinate solution of the highly non-linear field equations is presented using (i) relation between metric potentials and (ii) an equation of state which represents disordered radiation in five dimensional universe. The solution obtained describes five dimensional radiating model in Brans-Dicke theory. Some physical and kinematical properties of the model are also discussed.

  19. Dicke coherent narrowing in two-photon and Raman spectroscopy of thin vapor cells

    NASA Astrophysics Data System (ADS)

    Dutier, Gabriel; Todorov, Petko; Hamdi, Ismahène; Maurin, Isabelle; Saltiel, Solomon; Bloch, Daniel; Ducloy, Martial

    2005-10-01

    The principle of coherent Dicke narrowing in a thin vapor cell, in which sub-Doppler spectral line shapes are observed under a normal irradiation for a λ/2 thickness, is generalized to two-photon spectroscopy. Only the sum of the two wave vectors must be normal to the cell, making the two-photon scheme highly versatile. A comparison is provided between the Dicke narrowing with copropagating fields, and the residual Doppler broadening occurring with counterpropagating geometries. The experimental feasibility is discussed on the basis of a first observation of a two-photon resonance in a 300-nm-thick Cs cell. Extension to the Raman situation is finally considered.

  20. Dicke-like quantum phase transition and vacuum entanglement with two coupled atomic ensembles

    NASA Astrophysics Data System (ADS)

    Zheng, Shi-Biao

    2011-09-01

    We study the coherent cooperative phenomena of the system composed of two interacting atomic ensembles in the thermodynamic limit. Remarkably, the system exhibits the Dicke-like quantum phase transition and entanglement behavior although the governing Hamiltonian is fundamentally different from the spin-boson Dicke Hamiltonian, offering the opportunity for investigating collective matter-light dynamics with pure matter waves. The model can be realized with two Bose-Einstein condensates or atomic ensembles trapped in two optical cavities coupled to each other. The interaction between the two separate samples is induced by virtual photon exchange.

  1. {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].

  2. Parametrial fat tissue from high fat diet-treated SKH-1 mice stimulates transformation of mouse epidermal JB6 cells

    PubMed Central

    Bernard, Jamie J.; Lou, You-Rong; Peng, Qing-Yun; Li, Tao; Vakil, Priyal R.; Ding, Ning; Laskin, Jeffrey D.; Dong, Zigang; Conney, Allan H.; Lu, Yao-Ping

    2015-01-01

    Our previous studies indicated that decreasing visceral adipose tissue by surgical removal of the parametrial fat pads inhibited UVB-induced carcinogenesis in SKH-1 mice fed a high fat diet (HFD), but not a low fat diet (LFD) indicating that the parametrial fat tissue from mice fed a HFD played a role in skin carcinogenesis. Objective In the present study, we sought to investigate how a HFD may influence the intrinsic properties of the parametrial fat tissue to influence UVB-induced skin tumor formation. Methods and results Immunohistochemical staining, adipokine array, and flow cytometry showed that parametrial fat tissue from mice fed a HFD had a higher density of macrophage-fused dead adipocytes (crown-like structures), more adipokines, and stimulated the production of more reactive oxygen species compared with parametrial fat tissue from mice fed a LFD. These differences between parametrial fat tissue from mice fed a HFD and LFD were associated with their effect on the in vitro transformation of mouse epidermal JB6 cells. Our results indicated that fat tissue filtrate (an aqueous filtrate made from the parametrial fat pad) from mice fed a HFD enhanced the conversion of JB6 cells from an epithelial-like morphology to cells with a fibroblast-like morphology to a greater extent than fat tissue filtrate from mice fed a LFD. Studies indicated that the fibroblast-like cells had decreased levels of E-cadherin, increased levels of Twist as assayed by western blot. Fat tissue filtrate made from the parametrial fat tissue of mice fed a HFD had 160% more transforming activity than that from mice fed a LFD and formed malignant mesenchymal tumors in vivo. Conclusion These studies provide the first in vitro demonstration of a parametrial fat tissue-induced transformation of an epidermal cell. PMID:25821644

  3. Science Advisor and Applied Physicist: Joseph Henry Serves His Country

    NASA Astrophysics Data System (ADS)

    Rothenberg, Marc

    1997-04-01

    When Joseph Henry accepted the postion of secretary of the Smithsonian in 1846, his career changed radically. Although he never ceased thinking of himself as a research scientist and educator, thereafter his chief roles were those of science administrator and advisor to both the executive and legislative branches of the federal government for both science and technology. His effectiveness as an advocate became more important than his skill as an experimental physicist. Even when he entered the laboratory, his role had changed. No longer was he concerned with basic research. As a member of various government boards and committees, Henry spent the last three decades of his life concerned with the application of fundamental knowledge for the improvement of the human condition. This paper will discuss Henry's service on behalf of his country.

  4. 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

  5. Isolation and overexpression of a gene encoding an extracellular beta-(1,3-1,4)-glucanase from Streptococcus bovis JB1.

    PubMed Central

    Ekinci, M S; McCrae, S I; Flint, H J

    1997-01-01

    Streptococcus bovis JB1 was found to produce a 25-kDa extracellular enzyme active against beta-(1,3-1,4)-glucans. A gene was isolated encoding a specific beta-(1,3-1,4)-glucanase that corresponds to this size and belongs to glycoside hydrolase family 16. A 4- to 10-fold increase in supernatant beta-glucanase activity was obtained when the cloned beta-glucanase gene was reintroduced into S. bovis JB1 by use of constructs based on the plasmid vector pTRW10 or pIL253. The beta-(1,3-1,4)-glucanase gene was also expressed upon introduction of the pTRW10 construct pTRWL1R into Lactococcus lactis IL2661 and Enterococcus faecalis JH2-SS, although extracellular activity was 8- to 50-fold lower than that in S. bovis JB1. The beta-(1,3-1,4)-glucanase purified from the culture supernatant of S. bovis JB1 carrying pTRWL1R showed a K(m) of 2.8 mg per ml and a Vmax of 338 mumol of glucose equivalents per min per mg of protein with barley beta-glucan as the substrate. The S. bovis beta-(1,3-1,4)-glucanase may contribute to the ability of this bacterium to utilize starch by degrading structural polysaccharides present in endosperm cell walls. PMID:9327538

  6. Inhibition of Nickel Nanoparticles-Induced Toxicity by Epigallocatechin-3-Gallate in JB6 Cells May Be through Down-Regulation of the MAPK Signaling Pathways

    PubMed Central

    Bowman, Linda; Mao, Guochuan; Zou, Baobo; Xu, Jin; Liu, Yu; Liu, Kui; Zhao, Jinshun; Ding, Min

    2016-01-01

    With the rapid development in nanotechnology, nickel nanoparticles (Ni NPs) have emerged in the application of nanomedicine in recent years. However, the potential adverse health effects of Ni NPs are unclear. In this study, we examined the inhibition effects of epigallocatechin-3-gallate (EGCG) on the toxicity induced by Ni NPs in mouse epidermal cell line (JB6 cell). MTT assay showed that Ni NPs induced cytotoxicity in a dose-dependent manner while EGCG exerted a certain inhibition on the toxicity. Additionally, EGCG could reduce the apoptotic cell number and the level of reactive oxygen species (ROS) in JB6 cells induced by Ni NPs. Furthermore, we observed that EGCG could down-regulate Ni NPs-induced activator protein-1 (AP-1) and nuclear factor-κB (NF-κB) activation in JB6 cells, which has been shown to play pivotal roles in tumor initiation, promotion and progression. Western blot indicated that EGCG could alleviate the toxicity of Ni NPs through regulating protein changes in MAPK signaling pathways. In summary, our results suggest that careful evaluation on the potential health effects of Ni NPs is necessary before being widely used in the field of nanomedicine. Inhibition of EGCG on Ni NPs-induced cytotoxicity in JB6 cells may be through the MAPK signaling pathways suggesting that EGCG might be useful in preventing the toxicity of Ni NPs. PMID:26943640

  7. 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…

  8. 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.

  9. 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…

  10. Quantum phase transitions and spontaneous symmetry-breaking in Dicke model

    SciTech Connect

    Puebla, R.; Retamosa, J.

    2013-06-10

    A method to find the Excited-States Quantum Phase Transitions (ESQPT's) from paritysymmetry in the Dicke model is studied and presented. This method allows us to stablish a critical energy where ESQPT's take places, and divides the whole energy spectrum in two regions with different properties.

  11. Pursuing "Moby-Dick" in the Classroom, the Museum, Back in the Classroom, and Beyond.

    ERIC Educational Resources Information Center

    Wallace, Robert K.; Zlatkin, Aaron; Hixson, Lindsay; Kallmeyer, Robert J.; Sekowski, Kristen; Brock, Gina R.; Gallagher, Michael; Fletcher, William Ryan

    1997-01-01

    Describes a university course that explored the novel "Moby Dick" by Herman Melville and its relation to art highlighting the two student initiatives. Provides the opening statements from each of the 12 students at the National Association for Humanities Education Convention from their presentation on the course where they each related their…

  12. Classical and quantum solutions in Brans-Dicke cosmology with a perfect fluid

    NASA Astrophysics Data System (ADS)

    Paliathanasis, Andronikos; Tsamparlis, Michael; Basilakos, Spyros; Barrow, John D.

    2016-02-01

    We consider the application of group invariant transformations in order to constrain a flat isotropic and homogeneous cosmological model, containing 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 ωBD 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 wave function 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 in general relativity containing two perfect fluids. This provides us with different models for specific values of the parameters ωBD , and w . Finally, the results hold for the specific case where the Brans-Dicke parameter ωBD is zero, that is, for the O'Hanlon massive dilaton theory and, consequently, for f (R ) gravity in the metric formalism.

  13. La Vie et L'oeuvre d'Henri Wallon.

    ERIC Educational Resources Information Center

    Aubrey, Carol

    1987-01-01

    Outlines the life and philosophy of noted French child psychologist, Henri Wallon (1879-1962). Reviews the philosophical origins of the Wallonian Approach including the theory of emotions, the development of representational thought, the role of imitation in the formation of representation, and the role of language in the development of thought…

  14. A Conservation with...Henry Louis Gates, Jr.

    ERIC Educational Resources Information Center

    Cheney, Lynne V.

    1991-01-01

    Presents an interview between National Endowment for the Humanities chairman, Lynne V. Cheney, and Harvard professor, Henry Louis Gates, Jr. Includes discussion of multiculturalism as it relates to free speech, sexism, racism, hate speech, and ethnocentrism. Emphasizes both the open tradition of Western culture and the recent pressure for…

  15. 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

  16. 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

  17. 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

  18. Challenging Texts: Teaching Deliberately--Reading Henry David Thoreau's "Walden"

    ERIC Educational Resources Information Center

    Davis, Andrea

    2011-01-01

    One of the more difficult 19th-century American texts for high school students to read is undoubtedly Henry David Thoreau's "Walden." His erudite allusions, often page-long sentences, and sophisticated sense of the ironic initially leave many students cold. Still, the author encourages them to read amid the din of a cultural cacophony that shouts…

  19. 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…

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

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

    16. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 STONE CHURCH, SANCTUARY EAST WALL (LOOKING EAST) - Mission San Juan Capistrano, Stone Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  1. 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

  2. 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

  3. 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.

  4. 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...

  5. USING THE STATIC HEADSPACE METHOD TO DETERMINE HENRY'S LAW CONSTANTS

    EPA Science Inventory

    A new, accurate, and experimentally simple method has been developed to determine dimensionless Henry's law constants using the static headspace method. he method appears applicable to a wide range of volatile and semivolatile organic compounds. he method work well even for methy...

  6. 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)

  7. The Failed Educations of John Stuart Mill and Henry Adams.

    ERIC Educational Resources Information Center

    Crossley, Robert

    1979-01-01

    Analyzes and contrasts Mill's "Autobiography" and Adams'"The Education of Henry Adams" in order to present two approaches to the nature of education and of failure. Maintains that their perspectives may serve as catalysts and cautions for contemporary theories of education and its utility and relevance. (CAM)

  8. The Teaching Approach of Henry Schaefer-Simmern.

    ERIC Educational Resources Information Center

    Abrahamson, Roy E.

    1980-01-01

    This description of the teaching approach of Henry Schaefer-Simmern emphasizes his use of questioning to evoke student self-evaluation and to develop clarity of vision and interfunctional unity in students' art products and their mental, artistic conceiving. Two case reports of his work with elementary students are included. (Author/SJL)

  9. 22. Historic American Buildings Survey Photographed by Henry F. Withey ...

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

    22. Historic American Buildings Survey Photographed by Henry F. Withey June 1936 STONE CHURCH, ARCHES OF SANCTUARY AND WEST TRANSEPT - Mission San Juan Capistrano, Stone Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  10. 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 DOORWAY FROM CLOISTER TO SANCTUARY, SERRA'S CHURCH - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  11. 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 EXTERIOR OF SERRA'S CHURCH NORTH-WEST CORNER - Mission San Juan Capistrano, Serra's Church, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  12. 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, June 1936 FOUNTAIN IN A COURT, AND WEST WALL OF SERRA'S CHURCH - Mission San Juan Capistrano, Fountain, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

  13. 15. Photocopy of map, drawn by Henry Hagey, circa 1900 ...

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

    15. Photocopy of map, drawn by Henry Hagey, circa 1900 (from Willing Inhabitants, original in possession of author, Joyce Munro). FRANCONIA TOWNSHIP MAP. BRIDGE LOCATION IN BOTTOM CENTER - Allentown Road Bridge, Spanning Skippack Creek on Allentown Road, Franconia, Montgomery County, PA

  14. 7. Historic American Buildings Survey Photographed by Henry F. Withey, ...

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

    7. Historic American Buildings Survey Photographed by Henry F. Withey, MaY 1937 SHOP RUINS (DETAIL OF SOAP OVEN) - Mission San Juan Capistrano, Industrial Shops, Olive Street, between U.S. Highway 101 & Main Street, San Juan Capistrano, Orange County, CA

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

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

    6. Historic American Buildings Survey Photographed by Henry F. Withey April 1937 RUINS OF SOAP FACTORY & SMITHY (FROM S. E. END OF SOAP FACTORY) - Mission San Gabriel Arcangel, Industrial Shop (Ruins), West Mission Drive & Junipero Serra Street, San Gabriel, Los Angeles County, CA

  16. Portrait of a confederate secret agent: Henry A. Parr, DDS.

    PubMed

    Hyson, J M; Swanson, B Z

    1996-07-01

    Dr. Henry Albert Parr wore many faces during his career beginning with his Civil War service as a Confederate secret service agent and ending as a presidential dentist. How he played the roles in between as a pirate, accused murderer, pharmacist, inventor, and dental educator is a real odyssey--and worthy of documentation. PMID:9459850

  17. 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.

  18. Lagrangian circulation study near Cape Henry, Virginia. [Chesapeake Bay

    NASA Technical Reports Server (NTRS)

    Johnson, R. E.

    1981-01-01

    A study of the circulation near Cape Henry, Virginia, was made using surface and seabed drifters and radar tracked surface buoys coupled to subsurface drag plates. Drifter releases were conducted on a line normal to the beach just south of Cape Henry. Surface drifter recoveries were few; wind effects were strongly noted. Seabed drifter recoveries all exhibited onshore motion into Chesapeake Bay. Strong winds also affected seabed recoveries, tending to move them farther before recovery. Buoy trajectories in the vicinity of Cape Henry appeared to be of an irrotational nature, showing a clockwise rotary tide motion. Nearest the cape, the buoy motion elongated to almost parallel depth contours around the cape. Buoy motion under the action of strong winds showed that currents to at least the depth of the drag plates substantially are altered from those of low wind conditions near the Bay mouth. Only partial evidence could be found to support the presence of a clockwise nontidal eddy at Virginia Beach, south of Cape Henry.

  19. The structure, rearrangement, and ontogenic expression of DB and JB gene segments of the Mexican axolotl T-cell antigen receptor beta chain (TCRB).

    PubMed

    Kerfourn, F; Charlemagne, J; Fellah, J S

    1996-01-01

    We sequenced a total of 189 independent rearrangements in which the VB7.1 element is associated with CB1 (99 clones) or CB2 (90 clones) isotypes of the T-cell receptor (TCR) beta chain in the Mexican axolotl. Three stages of development were analyzed: 2.5 months, 10 months, and 25 months. Three JB1 segments were associated with the VB-CB1 rearrangements and six JB2 segments with VB-CB2. As in other vertebrates, some amino acid positions were conserved in all Jbetas (e. g., Phe-108, Gly-109, Gly-111, Thr-112, and Val-116). Two 11 nucleotides DB-like sequences, differed by one (A or T) central residue and could be productively read in the three putative reading frames. Most of the DB1 and JB1 segments were in the VB-CB1 clones, and most of the DB2 and JB2 segments were in the VB-CB2 clones, suggesting that the TCRB locus is organized into independent DB-JB-CB clusters that used the same collection of VB segments. About 40% of the beta-chain VDJ junctions in 2.5-month-old larvae had N nucleotides, compared with about 73% in 10 - 25-month old animals. The beta-chain VDJ junctions had about 30% of defective rearrangements at all stages of development, which could be due to the slow rate of cell division in the axolotl lymphoid organs, and the large genome in this urodele. Many of the axolotl CDRbeta3 sequences deduced for in frame VDJ rearrangements are the same in animals of different origins. Such redundancy could be a statistical effect due to the small number of thymocytes in the developing axolotl, rather than to some bias due to junctional preferences. PMID:8753858

  20. SN 2008jb: A 'LOST' CORE-COLLAPSE SUPERNOVA IN A STAR-FORMING DWARF GALAXY AT {approx}10 Mpc

    SciTech Connect

    Prieto, J. L.; Lee, J. C.; Drake, A. J.; Djorgovski, S. G.; McNaught, R.; Garradd, G.; Beacom, J. F.; Beshore, E.; Catelan, M.; Pojmanski, G.; Stanek, K. Z.; Szczygiel, D. M.

    2012-01-20

    We present the discovery and follow-up observations of SN 2008jb, a core-collapse supernova in the southern dwarf irregular galaxy ESO 302-14 (M{sub B} = -15.3 mag) at 9.6 Mpc. This nearby transient was missed by galaxy-targeted surveys and was only found in archival optical images obtained by the Catalina Real-time Transient Survey and the All-Sky Automated Survey. The well-sampled archival photometry shows that SN 2008jb was detected shortly after explosion and reached a bright optical maximum, V{sub max} {approx_equal} 13.6 mag (M{sub V,max} {approx_equal} -16.5). The shape of the light curve shows a plateau of {approx}100 days, followed by a drop of {approx}1.4 mag in the V band to a slow decline with an approximate {sup 56}Co decay slope. The late-time light curve is consistent with 0.04 {+-} 0.01 M{sub Sun} of {sup 56}Ni synthesized in the explosion. A spectrum of the supernova obtained two years after explosion shows a broad, boxy H{alpha} emission line, which is unusual for normal Type II-Plateau supernovae at late times. We detect the supernova in archival Spitzer and WISE images obtained 8-14 months after explosion, which show clear signs of warm (600-700 K) dust emission. The dwarf irregular host galaxy, ESO 302-14, has a low gas-phase oxygen abundance, 12 + log(O/H) = 8.2 ({approx}1/5 Z{sub Sun }), similar to those of the Small Magellanic Cloud and the hosts of long gamma-ray bursts and luminous core-collapse supernovae. This metallicity is one of the lowest among local ({approx}< 10 Mpc) supernova hosts. We study the host environment using GALEX far-UV, R-band, and H{alpha} images and find that the supernova occurred in a large star formation complex. The morphology of the H{alpha} emission appears as a large shell (R {approx_equal} 350 pc) surrounding the FUV and optical emission. Using the H{alpha}-to-FUV ratio and FUV and R-band luminosities, we estimate an age of {approx}9 Myr and a total mass of {approx}2 Multiplication-Sign 10{sup 5} M{sub Sun

  1. Compilation of Henry's law constants (version 4.0) for water as solvent

    NASA Astrophysics Data System (ADS)

    Sander, R.

    2015-04-01

    Many atmospheric chemicals occur in the gas phase as well as in liquid cloud droplets and aerosol particles. Therefore, it is necessary to understand the distribution between the phases. According to Henry's law, the equilibrium ratio between the abundances in the gas phase and in the aqueous phase is constant for a dilute solution. Henry's law constants of trace gases of potential importance in environmental chemistry have been collected and converted into a uniform format. The compilation contains 17 350 values of Henry's law constants for 4632 species, collected from 689 references. It is also available at henrys-law.org"target="_blank">http://www.henrys-law.org.

  2. 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

  3. Dicke-model phase transition in the quantum motion of a Bose-Einstein condensate in an optical cavity.

    PubMed

    Nagy, D; Kónya, G; Szirmai, G; Domokos, P

    2010-04-01

    We show that the motion of a laser-driven Bose-Einstein condensate in a high-finesse optical cavity realizes the spin-boson Dicke model. The quantum phase transition of the Dicke model from the normal to the superradiant phase corresponds to the self-organization of atoms from the homogeneous into a periodically patterned distribution above a critical driving strength. The fragility of the ground state due to photon measurement induced backaction is calculated. PMID:20481867

  4. 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

  5. [Assassination of Henri IV, mental disorders and criminal responsibility].

    PubMed

    Bouchard, Jean-Pierre

    2010-01-01

    On 14th May 1610, François Ravaillac, a delusional mystic, assassinated King Henri IV. Under the Ancien Regime, regicide was considered as a supreme act of patricide and received the ultimate punishment even if the perpetrator showed obvious signs of insanity. What would the situation be today? A study of this notorious historical episode provides a reflection on the way dangerousness linked to mental disorders has been viewed and treated over the last four centuries. PMID:21155330

  6. Twilight of the gods: John Henry Mackay's Der Unschuldige.

    PubMed

    Kennedy, H

    1993-01-01

    The writings of the Scotch-German John Henry Mackay are important for the early cultural history of the modern gay movement. This article recalls this unjustly neglected anarchist writer and advocate of man/boy love by tracing his biography and pointing out his contacts with others in the movement. His late novella Der Unschuldige is analyzed to show that Mackay has encoded homosexuality there in a unique and individual way. PMID:8113599

  7. 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.

  8. From Casimir-Polder Force to Dicke Physics: Interaction between Atoms and a Topological Insulator

    NASA Astrophysics Data System (ADS)

    Fuchs, Sebastian; Buhmann, Stefan

    We apply the theory of macroscopic quantum electrodynamics in dispersing and absorbing media to study the Casimir-Polder force between an atom and a topological insulator. The electromagnetic response of a topological insulator surface leads to a mixing of electric and magnetic fields, breaking the time-reversal symmetry. The coupling of these fields to an atom causes shifts of the atom's eigenenergies and modified decay rates near the surface of the topological insulator. Energy shifts and modified decay rates cannot only be triggered by the presence of a material, but can be caused by other atoms in close proximity as well. The collective dynamics of atoms (Dicke Physics) leads to a superradiant burst. Combining macroscopic QED and Dicke physics opens the door to the investigation of cooperative atom-surface interactions.

  9. Delocalized single-photon Dicke states and the Leggett-Garg inequality in solid state systems

    PubMed Central

    Chen, Guang-Yin; Lambert, Neill; Li, Che-Ming; Chen, Yueh-Nan; Nori, Franco

    2012-01-01

    We show how to realize a single-photon Dicke state in a large one-dimensional array of two-level systems, and discuss how to test its quantum properties. The realization of single-photon Dicke states relies on the cooperative nature of the interaction between a field reservoir and an array of two-level-emitters. The resulting dynamics of the delocalized state can display Rabi-like oscillations when the number of two-level emitters exceeds several hundred. In this case, the large array of emitters is essentially behaving like a “mirror-less cavity”. We outline how this might be realized using a multiple-quantum-well structure or a dc-SQUID array coupled to a transmission line, and discuss how the quantum nature of these oscillations could be tested with an extension of the Leggett-Garg inequality. PMID:23162693

  10. 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

  11. 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

  12. 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

  13. Omega 3 but not omega 6 fatty acids inhibit AP-1 activity and cell transformation in JB6 cells

    PubMed Central

    Liu, Guangming; Bibus, Douglas M.; Bode, Ann M.; Ma, Wei-Ya; Holman, Ralph T.; Dong, Zigang

    2001-01-01

    Epidemiological and animal-based investigations have indicated that the development of skin cancer is in part associated with poor dietary practices. Lipid content and subsequently the derived fatty acid composition of the diet are believed to play a major role in the development of tumorigenesis. Omega 3 (ω3) fatty acids, including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), can effectively reduce the risk of skin cancer whereas omega 6 (ω6) fatty acids such as arachidonic acid (AA) reportedly promote risk. To investigate the effects of fatty acids on tumorigenesis, we performed experiments to examine the effects of the ω3 fatty acids EPA and DHA and of the ω6 fatty acid AA on phorbol 12-tetradecanoate 13-acetate (TPA)-induced or epidermal growth factor (EGF)-induced transcription activator protein 1 (AP-1) transactivation and on the subsequent cellular transformation in a mouse epidermal JB6 cell model. DHA treatment resulted in marked inhibition of TPA- and EGF-induced cell transformation by inhibiting AP-1 transactivation. EPA treatment also inhibited TPA-induced AP-1 transactivation and cell transformation but had no effect on EGF-induced transformation. AA treatment had no effect on either TPA- or EGF-induced AP-1 transactivation or transformation, but did abrogate the inhibitory effects of DHA on TPA- or EGF-induced AP-1 transactivation and cell transformation in a dose-dependent manner. The results of this study demonstrate that the inhibitory effects of ω3 fatty acids on tumorigenesis are more significant for DHA than for EPA and are related to an inhibition of AP-1. Similarly, because AA abrogates the beneficial effects of DHA, the dietary ratio of ω6 to ω3 fatty acids may be a significant factor in mediating tumor development. PMID:11416221

  14. Generation of Symmetric Dicke States of Remote Qubits with Linear Optics

    SciTech Connect

    Thiel, C.; Zanthier, J. von; Bastin, T.; Solano, E.; Agarwal, G. S.

    2007-11-09

    We propose a method for generating all symmetric Dicke states, either in the long-lived internal levels of N massive particles or in the polarization degrees of freedom of photonic qubits, using linear optical tools only. By means of a suitable multiphoton detection technique, erasing Welcher-Weg information, our proposed scheme allows the generation and measurement of an important class of entangled multiqubit states.

  15. Production of an X-band horn after a design of Dick Turrin, W2IMU

    NASA Astrophysics Data System (ADS)

    Monstein, Christian

    2015-08-01

    While looking for a nice, easy to perform and cheap students' project in 2009, we investigated X-band (8 to 12 GHz) microwave devices. A 5 m parabolic dish antenna and an X-band down-converter were already available, but we had no antenna feed in our tool box. A web search yielded a simple feed horn design and found sketches and descriptions by Dick Turrin (W2IMU) from 1991.

  16. 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 ω 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 χ 2 test. We present the observational data analysis mechanism for Stern, Stern+BAO and Stern+BAO+CMB observations. Minimising χ 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.

  17. Stability analysis and observational measurement in chameleonic generalised Brans-Dicke cosmology

    SciTech Connect

    Farajollahi, Hossein; Salehi, Amin E-mail: a.salehi@guilan.ac.ir

    2011-07-01

    We investigate the dynamics of the chameleonic Generalised Brans-Dicke model in flat FRW cosmology. In a new approach, a framework to study stability and attractor solutions in the phase space for the model is developed by simultaneously best fitting the stability and model parameters with the observational data. The results show that for an accelerating universe the phantom crossing does not occur in the past and near future.

  18. Hydrodynamics of a gaseous system in massive Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, M.; Manzoor, Rubab

    2016-03-01

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

  19. Cylindrically symmetric, static strings with a cosmological constant in Brans-Dicke theory

    SciTech Connect

    Delice, Oezguer

    2006-12-15

    The static cylindrically symmetric vacuum solutions with a cosmological constant in the framework of the Brans-Dicke theory are investigated. Some of these solutions admitting Lorentz boost invariance along the symmetry axis correspond to local, straight cosmic strings with a cosmological constant. Some physical properties of such solutions are studied. These strings apply attractive or repulsive forces on the test particles. A smooth matching is also performed with a recently introduced interior thick string solution with a cosmological constant.

  20. c-Jun/AP-1 pathway-mediated cyclin D1 expression participates in low dose arsenite-induced transformation in mouse epidermal JB6 Cl41 cells

    SciTech Connect

    Zhang Dongyun; Li Jingxia; Gao Jimin; Huang Chuanshu

    2009-02-15

    Arsenic is a well-documented human carcinogen associated with skin carcinogenesis. Our previous work reveals that arsenite exposure is able to induce cell transformation in mouse epidermal cell JB6 Cl41 through the activation of ERK, rather than JNK pathway. Our current studies further evaluate downstream pathway in low dose arsenite-induced cell transformation in JB6 Cl41 cells. Our results showed that treatment of cells with low dose arsenite induced activation of c-Jun/AP-1 pathway, and ectopic expression of dominant negative mutant of c-Jun (TAM67) blocked arsenite-induced transformation. Furthermore, our data indicated that cyclin D1 was an important downstream molecule involved in c-Jun/AP-1-mediated cell transformation upon low dose arsenite exposure, because inhibition of cyclin D1 expression by its specific siRNA in the JB6 Cl41 cells resulted in impairment of anchorage-independent growth of cells induced by low dose arsenite. Collectively, our results demonstrate that c-Jun/AP-1-mediated cyclin D1 expression is at least one of the key events implicated in cell transformation upon low dose arsenite exposure.

  1. Brans-Dicke Theory with Λ>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 Λ and parameter ω. First, it is shown that regular stationary black-hole solutions not only have constant Brans-Dicke field ϕ, but can exist only for ω=∞, 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 ω>0 or ω≲-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 Λ=0 spacetimes. PMID:26565454

  2. Brans-Dicke Theory with Λ >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 Λ and parameter ω . First, it is shown that regular stationary black-hole solutions not only have constant Brans-Dicke field ϕ , but can exist only for ω =∞, 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 ω >0 or ω ≲-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 Λ =0 spacetimes.

  3. Reconstructing Henry: Or, Why Everything You Needed to Know about Wilderness Philosophy You Could Have Learned from Henry David Thoreau

    ERIC Educational Resources Information Center

    Glover, Jim

    2006-01-01

    Henry David Thoreau has gotten a bad rap lately. He's been pigeon-holed as a "romantic" by resource managers who do not have a tiny fragment of his wisdom and don't know anything about him. He's been accused of hypocrisy because his cabin at Walden Pond was not, after all, very remote. His wilderness trips, in this age of fly-in mountaineering,…

  4. Henri Ey's neojacksonism and the psychopathology of disintegrated mind.

    PubMed

    Farina, Benedetto; Ceccarelli, Maurizio; Di Giannantonio, Massimo

    2005-01-01

    The French psychiatrist Henri Ey developed his organo-dynamic theory of the mind function and consciousness 50 years ago incorporating Hughling Jackson's thinking, along with psychiatric and philosophical theorizations by Janet and Bergson. This model has not received the attention it deserved, but recent advances in neuroscience rekindled interest for Ey's theory. By overcoming the Cartesian mind-body dualism and treating the mind-body unit as an inseparable whole, this model opens the way for the integrated treatment of mental disorders. Ey's conceptualization of consciousness as being simultaneously both synchronous and diachronic anticipates current theories of consciousness (Damasio, Edelman, Mesulam). PMID:16179816

  5. Henry Charlton Bastian (1837-1915): neglected neurologist and scientist.

    PubMed

    Pearce, J M S

    2010-01-01

    Henry Charlton Bastian was born in Truro, Cornwall. He graduated in 1861 at the University College, London, where he worked most of his life. He was one of the first neurologists appointed to the National Hospital, Queen Square. There, he conducted original investigations and pursued wide interests both in medical and biological sciences. He was elected a Fellow of the Royal Society in 1868. In addition to his reputation as a neurological diagnostician and intellectual, he became an advocate of the vexed doctrine of abiogenesis. PMID:20093838

  6. Silibinin Inhibits Ultraviolet B Radiation-Induced DNA-Damage and Apoptosis by Enhancing Interleukin-12 Expression in JB6 Cells and SKH-1 Hairless Mouse Skin

    PubMed Central

    Narayanapillai, Sreekanth; Agarwal, Chapla; Deep, Gagan; Agarwal, Rajesh

    2013-01-01

    Recent studies have demonstrated silibinin efficacy against ultraviolet B (UVB)-induced skin carcinogenesis via different mechanisms in cell lines and animal models; however, its role in regulating interleukin-12 (IL-12), an immunomodulatory cytokine that reduces UVB-induced DNA damage and apoptosis, is not known. Here, we report that UVB irradiation causes caspase 3 and PARP cleavage and apoptosis, and addition of recombinant IL-12 or silibinin immediately after UVB significantly protects UVB-induced apoptosis in JB6 cells. IL-12 antibody-mediated blocking of IL-12 activity compromised the protective effects of both IL-12 and silibinin. Both silibinin and IL-12 also accelerated the repair of UVB-caused cyclobutane-pyrimidine dimers (CPDs) in JB6 cells. Additional studies confirmed that indeed silibinin causes a significant increase in IL-12 levels in UVB-irradiated JB6 cells as well as in mouse skin epidermis, and that similar to cell-culture findings, silibinin topical application immediately after UVB exposure causes a strong protection against UVB-induced TUNEL positive cells in epidermis possibly through a significantly accelerated repair of UVB-caused CPDs. Together, these findings for the first time provide an important insight regarding the pharmacological mechanism wherein silibinin induces endogenous IL-12 in its efficacy against UVB-caused skin damages. In view of the fact that an enhanced endogenous IL-12 level could effectively remove UVB-caused DNA damage and associated skin cancer, our findings suggest that the use of silibinin in UVB-damaged human skin would also be a practical and translational strategy to manage solar radiation-caused skin damages as well as skin cancer. PMID:23359305

  7. Porcine enteritis associated with Eimeria spinosa Henry, 1931 infection.

    PubMed

    Lindsay, David S; Neiger, Regg; Hildreth, Michael

    2002-12-01

    Coccidia of the genus Eimeria are present in most pigs raised on dirt in the United States. They are generally considered nonpathogenic in weaned pigs. Oocysts of Eimeria spinosa Henry, 1931 were observed in tissue sections and intestinal contents of a weaned male pig that died suddenly on a farm in Iowa. Microscopically, necrotizing enteritis associated with many thick-walled coccidial oocysts was present in intestinal sections. Examination of intestinal contents demonstrated oocysts that were thick-walled and had small projections on the surface of the oocyst wall, characteristic of E. spinasa Henry, 1931 of swine. Twenty-live oocysts in intestinal contents measured 20.4 by 14.2 microm. No pathogenic bacteria were detected in the pig by culture methods, but lesions suggestive of salmonellosis were observed in some tissues. The specific cause of death was not determined; however, E. spinosa infection was considered to have contributed to the death of this pig. The results suggest that E. spinosa may be pathogenic for pigs. PMID:12539745

  8. 77 FR 71190 - Henry County, Iowa; Notice of Preliminary Permit Application Accepted for Filing and Soliciting...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission Henry County, Iowa; Notice of Preliminary Permit Application Accepted for Filing and Soliciting Comments, Motions To Intervene, and Competing Applications On October 3, 2012, Henry County, Iowa, filed an application...

  9. 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)

  10. A Henry's Law Test for Experimental Partitioning Studies of Iron Meteorites

    NASA Technical Reports Server (NTRS)

    Chabot, N. L.; Campbell, A. J.; Humayun, M.; Agee, C. B.

    2001-01-01

    Low-level doped solid metal/liquid metal experiments analyzed by laser ablation ICP-MS allow Henry's Law to be tested. The results indicate Henry's Law is obeyed and the experimental partition coefficients can be applied to iron meteorites. Additional information is contained in the original extended abstract.