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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. 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)

  15. 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.

  16. 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

  17. 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

  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. 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.

  3. 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

  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. 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.

  13. 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…

  14. 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…

  15. 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)

  16. 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…

  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. 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.

  4. 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.

  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. 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…

  7. 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…

  8. 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…

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

    PubMed

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

    2015-04-01

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

  10. 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....

  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'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.

  13. 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

  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. 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

  19. 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.

  20. 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

  1. 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.

  2. 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

  3. 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

  4. 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

  5. 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.

  6. 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.

  7. 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.

  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. 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.

  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. 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)

  14. 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…

  15. 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…

  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 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

  6. 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…

  7. 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…

  8. 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…

  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. 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.

  11. 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.

  12. 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

  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. 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

  19. 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.

  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 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

  6. 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

  7. 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

  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. 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

  10. 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

  11. 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

  12. 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

  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. 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

  15. 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

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  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. 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...

  5. 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

  6. 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…

  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. 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

  10. 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

  11. 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.

  12. 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

  13. 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

  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. 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

  16. 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

  17. 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.

  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. 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.

  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. 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

  3. 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

  4. 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

  5. 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

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

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

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

  7. 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

  8. 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

  9. 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

  10. 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

  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 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

  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 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  1. 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

  2. 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

  3. 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

  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. 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.

  12. 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.

  13. 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.

  14. 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.

  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

    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 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

  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. 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.

  3. 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

  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. 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…

  6. 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

  7. 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

  8. 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…

  9. 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.

  10. 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…

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

    SciTech Connect

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

    2011-10-15

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

  12. 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. 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

  14. 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

  15. 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

  16. 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.

  17. 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...

  18. 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...

  19. 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)

  20. 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)

  1. 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)

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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…

  10. 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…

  11. 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.

  12. 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.

  13. 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

  14. 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

  15. 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…

  16. 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…

  17. 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

  18. 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

  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. 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

  8. 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

  9. 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

  10. 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.

  11. 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.

  12. 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

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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

  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. 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,…

  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. 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

  4. 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

  5. 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

  6. 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

  7. 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

  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.

  11. 77 FR 57126 - Henri Wetselaar, M.D.; Decision and Order

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF JUSTICE Drug Enforcement Administration Henri Wetselaar, M.D.; Decision and Order On September 27, 2011, I, the Administrator of the Drug Enforcement Administration, issued an Order to Show Cause and Immediate Suspension of Registration to Henri Wetselaar, M.D....

  12. Into the Past through the Future: Captain Picard Meets Henry V.

    ERIC Educational Resources Information Center

    Blumrich, Ann Nord

    1994-01-01

    Describes beginning a unit on Shakespeare and his play "Henry V" by showing and discussing in class an episode from the television program "Star Trek: The Next Generation" called "The Defector," which opens with a scene from Henry V and makes allusions to the play throughout the episode. (SR)

  13. 33 CFR 80.515 - Cape Henry, VA to Cape Hatteras, NC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Cape Henry, VA to Cape Hatteras, NC. 80.515 Section 80.515 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Fifth District § 80.515 Cape Henry, VA...

  14. Assessment of water-quality conditions in the J.B. Converse Lake watershed, Mobile County, Alabama, 1990-98

    USGS Publications Warehouse

    Journey, Celeste A.; Gill, Amy C.

    2001-01-01

    J.B. Converse (Converse) Lake is a 3,600-acre, tributary-storage reservoir in Mobile County, southwestern Alabama. The lake serves as the primary drinking-water supply for the city of Mobile. The Converse Lake watershed lies within the Coastal Plain Physiographic Province. Semiconsolidated to unconsolidated sediments of sand, silt, gravel, and clay underlie the watershed, and are covered by acidic soils. Land use in the watershed is mainly forest (64 percent) and agriculture (31 percent). Residential and commercial development account for only 1 percent of the total land use in the watershed. Converse Lake receives inflow from seven major tributaries. The greatest inflows are from Big Creek, Crooked Creek, and Hamilton Creek that had mean annual streamflows of 72.2, 19.4, and 25.0 cubic feet per second, respectively, for the period 1990 to 1998, which represents about 72 percent of the total annual streamflow to the lake. The total mean annual inflow to the lake is estimated to be about 163 cubic feet per second. In general, water quality in Converse Lake and its tributaries meets the criteria established by the Alabama Department of Environmental Management (ADEM) for drinking-water supplies, whole-body contact, and aquatic life. The exceptions include acidic pH levels, iron and manganese levels above secondary or aesthetic criteria, and fecal bacterial levels in some tributaries above whole-body contact (swimmable) criteria. The pH levels throughout the watershed were commonly below the criteria level of 6.0, but this appears to have been a naturally occurring phenomenon caused by poorly buffered soil types, resistant sediments, and forested land use. Median iron and manganese levels were above aesthetic criteria levels of 300 and 50 micrograms per liter, respectively, in some tributaries. All tributary sites in the Converse Lake watershed had median and minimum dissolved-oxygen concentrations above the ADEM criteria level of 5 milligrams per liter except for

  15. Fisher information, Rényi entropy power and quantum phase transition in the Dicke model

    NASA Astrophysics Data System (ADS)

    Nagy, Á.; Romera, E.

    2012-07-01

    Fisher information, Rényi entropy power and Fisher-Rényi information product are presented for the Dicke model. There is a quantum phase transition in this quantum optical model. It is pointed out that there is an abrupt change in the Fisher information, Rényi entropy power, the Fisher, Shannon and Rényi lengths at the transition point. It is found that these quantities diverge as the characteristic length: | around the critical value of the coupling strength λc for any value of the parameter β.

  16. The entropy-corrected holographic dark energy in Brans-Dicke cosmology with varying mass fermions

    NASA Astrophysics Data System (ADS)

    Farajollahi, H.; Tayebi, F.

    2013-07-01

    We aim in this paper to study Brans-Dicke cosmology in the presence of varying mass fermions and a self-interaction potential. Furthermore, we also probe the entropy corrected holographic dark energy (ECHDE) in the model in two non-interacting and interacting scenarios. The model parameters are constrained by using the recent SNe Ia observational data and tested against observational data of Hubble parameter. For a comparison, we also constrained and tested the cosmological parameters in ΛCDM model with the same observational data. We show that in non of the scenarios the model prediction is better than ΛCDM model.

  17. Entropy, chaos, and excited-state quantum phase transitions in the Dicke model.

    PubMed

    Lóbez, C M; Relaño, A

    2016-07-01

    We study nonequilibrium processes in an isolated quantum system-the Dicke model-focusing on the role played by the transition from integrability to chaos and the presence of excited-state quantum phase transitions. We show that both diagonal and entanglement entropies are abruptly increased by the onset of chaos. Also, this increase ends in both cases just after the system crosses the critical energy of the excited-state quantum phase transition. The link between entropy production, the development of chaos, and the excited-state quantum phase transition is more clear for the entanglement entropy. PMID:27575109

  18. Inflationary phase in Brans-Dicke cosmology with a cosmological constant

    NASA Astrophysics Data System (ADS)

    Berman, Marcelo Samuel

    1989-12-01

    It has been shown earlier that, for a perfect fluid, a perfect gas law of state, and the Robertson-Walker metric, an exponential phase in Brans-Dicke cosmology is possible, with both positive pressure and density, but not with the violated energy condition p = -ρ. We demonstrate in this paper that the inclusion of a cosmological constant into the theory does not change that picture. Permanent address: Departamento de Ciencias Exatas da Faculdade de Filosofia, Ceincias e Letras da FURJ, Joinville, SC 89200, Brazil.

  19. Critical properties of entanglement in the Dicke model with the dipole-dipole interactions

    NASA Astrophysics Data System (ADS)

    Nie, J.; Huang, X. L.; Yi, X. X.

    2009-04-01

    In this paper, we investigate two aspects of entanglement properties of the ground state for the Dicke model with the dipole-dipole interaction between the atoms in the thermodynamic limit, and observe how they are affected by the quantum phase transition. The appearance of dipole-dipole interactions between the atoms does not change the maximum atom-field entanglement at the critical point, while it changes the maximum atom-atom entanglement at the critical point, and has an important influence on the atom-atom entanglement behavior.

  20. Five dimensional spherically symmetric minimally interacting holographic dark energy model in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Reddy, D. R. K.; Raju, P.; Sobhanbabu, K.

    2016-04-01

    Five dimensional spherically symmetric space-time filled with two minimally interacting fields; matter and holographic dark energy components is investigated in a scalar tensor theory of gravitation proposed by Brans and Dicke (Phys. Rev. 124:925, 1961). To obtain a determinate solution of the highly non-linear field equations we have used (i) a relation between metric potentials and (ii) an equation of state which represents disordered radiation in five dimensional universe. The solution obtained represents a minimally interacting and radiating holographic dark energy model in five dimensional universe. Some physical and Kinematical properties of the model are, also, studied.

  1. Instability analysis of a cylindrical stellar object in Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, M.; Manzoor, R.

    2016-05-01

    This paper investigates instability ranges of a cylindrically symmetric collapsing cosmic filamentary structure in the Brans-Dicke theory of gravity. For this purpose, we use a perturbating approach to the modified field equations as well as dynamic equations and construct a collapse equation. The collapse equation with an adiabatic index (Γ) is used to explore the instability ranges of both isotropic and anisotropic fluid in Newtonian and post-Newtonian approximations. It turns out that the instability ranges depend on the dynamic variables of collapsing filaments. We conclude that the system always remains unstable for 0 < Γ < 1, while Γ > 1 provides instability only in a special case.

  2. Lemaitre-Tolman-Bondi dust cloud collapse in Brans-Dicke gravity

    NASA Astrophysics Data System (ADS)

    Sharif, Muhammad; Manzoor, Rubab

    2014-11-01

    This paper investigates the phenomenon of gravitational collapse of Lemaitre-Tolman-Bondi (LTB) model in the presence of Brans-Dicke (BD) scalar field with nonzero potential field. We find a class of solutions by taking perfect fluid as well as scalar field and check the validity of weak energy conditions. It turns out that two different types of singularities are formed in the presence of scalar field. We conclude that the end state of gravitational collapse turns out to be a black hole (BH) contrary to general relativity (GR).

  3. The FRW Universes with Barotropic Fluids in Jordan-Brans-Dicke Theory

    NASA Astrophysics Data System (ADS)

    Chauvet-Alducin, P.

    The description of homogeneous and isotropic models for the expansion of the Universe represented by a perfect, barotropic, fluid pose mathematical difficulties that have been overcome when the space is non-flat in scalar-tensor theories only if the energy-stress tensor is vacuous or describes stiff matter, incoherent radiation or ultrarelativistic matter. This paper reveals the dynamics for these and the other ideal fluid models, in non-flat spaces mainly, for the Jordan-Brans-Dicke cosmological theory by showing that its field equations, when written in terms of reduced variables, allow their straightforward partial integration.

  4. Power Law and Logarithmic Entropy Corrected Ricci Dark Energy Models in Brans-Dicke Chameleon Cosmology

    NASA Astrophysics Data System (ADS)

    Pasqua, Antonio; Assaf, Khudhair A.; Aly, Ayman A.

    2013-10-01

    In this work, we study the power-law and the logarithmic entropy corrected versions of the Ricci Dark Energy (RDE) model in the framework of the Brans-Dicke cosmology non-minimally coupled with a chameleon scalar field ϕ. Considering the presence of interaction between Dark Energy (DE) and Dark Matter (DM), we derived the expressions of some relevant cosmological parameters, i.e. the equation of state parameter ω D , the deceleration parameter q and the evolution of the energy density parameter \\varOmega'D.

  5. Ultrathin atomic vapor film transmission spectroscopy: analysis of Dicke narrowing structure

    NASA Astrophysics Data System (ADS)

    Li, Yuanyuan; Zhang, Yanpeng; Gan, Chenli

    2005-11-01

    Transmission sub-Doppler spectroscopy with confined atomic vapor film between two dielectric walls is theoretically studied. Because of atoms flying from wall to wall, where they get de-excited, the atom-field interaction time is anisotropic so that the contribution of slow atoms is enhanced, a sub-Doppler transmission spectroscopy (Dicke narrowing effect) can be obtained when the thickness of the film is much small or comparable with the wavelength even at small angle oblique incidence. It is feasible to get a sub-Doppler structure in a new region (L < ?/4) in experiments.

  6. Observation of a Superradiant Mott Insulator in the Dicke-Hubbard Model

    NASA Astrophysics Data System (ADS)

    Klinder, J.; Keßler, H.; Bakhtiari, M. Reza; Thorwart, M.; Hemmerich, A.

    2015-12-01

    It is well known that the bosonic Hubbard model possesses a Mott insulator phase. Likewise, it is known that the Dicke model exhibits a self-organized superradiant phase. By implementing an optical lattice inside of a high-finesse optical cavity, both models are merged such that an extended Hubbard model with cavity-mediated infinite range interactions arises. In addition to a normal superfluid phase, two superradiant phases are found, one of them coherent and hence superfluid and one incoherent Mott insulating.

  7. Deterministic distribution of four-photon Dicke state over an arbitrary collective-noise channel with cross-Kerr nonlinearity.

    PubMed

    Wang, Mei-Yu; Yan, Feng-Li; Gao, Ting

    2016-01-01

    We present two deterministic quantum entanglement distribution protocols for a four-photon Dicke polarization entangled state resorting to the frequency and spatial degrees of freedom, which are immune to an arbitrary collective-noise channel. Both of the protocols adopt the X homodyne measurement based on the cross-Kerr nonlinearity to complete the task of the single-photon detection with nearly unit probability in principle. After the four receivers share the photons, they add some local unitary operations to obtain a standard four-photon Dicke polarization entangled state. PMID:27412489

  8. Deterministic distribution of four-photon Dicke state over an arbitrary collective-noise channel with cross-Kerr nonlinearity

    PubMed Central

    Wang, Mei-Yu; Yan, Feng-Li; Gao, Ting

    2016-01-01

    We present two deterministic quantum entanglement distribution protocols for a four-photon Dicke polarization entangled state resorting to the frequency and spatial degrees of freedom, which are immune to an arbitrary collective-noise channel. Both of the protocols adopt the X homodyne measurement based on the cross-Kerr nonlinearity to complete the task of the single-photon detection with nearly unit probability in principle. After the four receivers share the photons, they add some local unitary operations to obtain a standard four-photon Dicke polarization entangled state. PMID:27412489

  9. Deterministic distribution of four-photon Dicke state over an arbitrary collective-noise channel with cross-Kerr nonlinearity

    NASA Astrophysics Data System (ADS)

    Wang, Mei-Yu; Yan, Feng-Li; Gao, Ting

    2016-07-01

    We present two deterministic quantum entanglement distribution protocols for a four-photon Dicke polarization entangled state resorting to the frequency and spatial degrees of freedom, which are immune to an arbitrary collective-noise channel. Both of the protocols adopt the X homodyne measurement based on the cross-Kerr nonlinearity to complete the task of the single-photon detection with nearly unit probability in principle. After the four receivers share the photons, they add some local unitary operations to obtain a standard four-photon Dicke polarization entangled state.

  10. Six-photon entangled Dicke state enabled by a UV enhancement cavity as novel SPDC photon source

    NASA Astrophysics Data System (ADS)

    Wieczorek, Witlef; Krischek, Roland; Ozawa, Akira; Tóth, Géza; Kiesel, Nikolai; Michelberger, Patrick; Udem, Thomas; Weinfurter, Harald

    2010-06-01

    Photon sources for multi-photon entanglement experiments are commonly based on the process of spontaneous parametric down conversion. Due to the probabilistic photon production, such experiments suffer from low multiphoton count rates. To increase this count rate, we present a novel SPDC pump source based on a femtosecond UV enhancement cavity that increases the available pump power while maintaining a high repetition rate of 80MHz. We apply the cavity as photon source for realizing symmetric, multi-partite entangled Dicke states, which are observed with a high rate and high fidelity. We characterize the observed Dicke states of up to six photons using efficient tools exploiting the state's symmetries.

  11. Human Heat shock protein 40 (Hsp40/DnaJB1) promotes influenza A virus replication by assisting nuclear import of viral ribonucleoproteins

    PubMed Central

    Batra, Jyoti; Tripathi, Shashank; Kumar, Amrita; Katz, Jacqueline M.; Cox, Nancy J.; Lal, Renu B.; Sambhara, Suryaprakash; Lal, Sunil K.

    2016-01-01

    A unique feature of influenza A virus (IAV) life cycle is replication of the viral genome in the host cell nucleus. The nuclear import of IAV genome is an indispensable step in establishing virus infection. IAV nucleoprotein (NP) is known to mediate the nuclear import of viral genome via its nuclear localization signals. Here, we demonstrate that cellular heat shock protein 40 (Hsp40/DnaJB1) facilitates the nuclear import of incoming IAV viral ribonucleoproteins (vRNPs) and is important for efficient IAV replication. Hsp40 was found to interact with NP component of IAV RNPs during early stages of infection. This interaction is mediated by the J domain of Hsp40 and N-terminal region of NP. Drug or RNAi mediated inhibition of Hsp40 resulted in reduced nuclear import of IAV RNPs, diminished viral polymerase function and attenuates overall viral replication. Hsp40 was also found to be required for efficient association between NP and importin alpha, which is crucial for IAV RNP nuclear translocation. These studies demonstrate an important role for cellular chaperone Hsp40/DnaJB1 in influenza A virus life cycle by assisting nuclear trafficking of viral ribonucleoproteins. PMID:26750153

  12. Human Heat shock protein 40 (Hsp40/DnaJB1) promotes influenza A virus replication by assisting nuclear import of viral ribonucleoproteins.

    PubMed

    Batra, Jyoti; Tripathi, Shashank; Kumar, Amrita; Katz, Jacqueline M; Cox, Nancy J; Lal, Renu B; Sambhara, Suryaprakash; Lal, Sunil K

    2016-01-01

    A unique feature of influenza A virus (IAV) life cycle is replication of the viral genome in the host cell nucleus. The nuclear import of IAV genome is an indispensable step in establishing virus infection. IAV nucleoprotein (NP) is known to mediate the nuclear import of viral genome via its nuclear localization signals. Here, we demonstrate that cellular heat shock protein 40 (Hsp40/DnaJB1) facilitates the nuclear import of incoming IAV viral ribonucleoproteins (vRNPs) and is important for efficient IAV replication. Hsp40 was found to interact with NP component of IAV RNPs during early stages of infection. This interaction is mediated by the J domain of Hsp40 and N-terminal region of NP. Drug or RNAi mediated inhibition of Hsp40 resulted in reduced nuclear import of IAV RNPs, diminished viral polymerase function and attenuates overall viral replication. Hsp40 was also found to be required for efficient association between NP and importin alpha, which is crucial for IAV RNP nuclear translocation. These studies demonstrate an important role for cellular chaperone Hsp40/DnaJB1 in influenza A virus life cycle by assisting nuclear trafficking of viral ribonucleoproteins. PMID:26750153

  13. Stellar explosion in the weak field approximation of the Brans Dicke theory

    NASA Astrophysics Data System (ADS)

    Hamity, Victor H.; Barraco, Daniel E.

    2005-10-01

    We treat a very crude model of an exploding star, in the weak field approximation of the Brans Dicke theory, in a scenario that resembles some characteristic data of a type Ia supernova. The most noticeable feature, in the electromagnetic component, is the relationship between the absolute magnitude at maximum brightness of the star and the decline rate in one magnitude from that maximum. This characteristic has become one of the most accurate methods to measure luminosity distances to objects at cosmological distances (Phillips M M 1993 Astrophys. J. 413 L105; see www.all-science-fair-projects.com/science_fair_projects_encyclopedia/Supernova, for a brief description of supernovae types). An interesting result is that the active mass associated with the scalar field is totally radiated to infinity, representing a mass loss in the ratio of the 'tensor' component to the scalar component of 1 to (2ω + 3) (ω is the Brans Dicke parameter), in agreement with a general result of Hawking (1972 Commun. Math. Phys. 25 167). Then, this model shows explicitly, in a dynamical case, the mechanism of the radiation of a scalar field, which is necessary to understand the Hawking result.

  14. Holographic dark energy in Brans-Dicke theory with logarithmic correction

    NASA Astrophysics Data System (ADS)

    Sheykhi, A.; Karami, K.; Jamil, M.; Kazemi, E.; Haddad, M.

    2012-03-01

    In the derivation of holographic dark energy density, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum gravity, string theory and black hole physics. In this paper, we study cosmological implication of the interacting entropy-corrected holographic dark energy model in the framework of Brans-Dicke cosmology. We obtain the equation of state and the deceleration parameters of the entropy-corrected holographic dark energy in a non-flat Universe. As system's IR cutoff we choose the radius of the event horizon measured on the sphere of the horizon, defined as L = ar( t). We find out that when the entropy-corrected holographic dark energy is combined with the Brans-Dicke field, the transition from normal state where w D > -1 to the phantom regime where w D < -1 for the equation of state of interacting dark energy can be more easily achieved for than when resort to the Einstein field equations is made.

  15. Bianchi type I Universe and instability of new agegraphic dark energy in Brans-Dicke theories

    NASA Astrophysics Data System (ADS)

    Fayaz, V.

    2016-02-01

    In this paper, we consider the new agegraphic dark energy (NADE) in a Bianchi type-I metric (which is a spatially homogeneous and anisotropic) in the framework of Brans-Dicke theory. For this purpose, we use the squared sound speed vs2 whose sign determines the stability of the model. We explore the stability of this model in the presence/absence of interaction between dark energy and dark matter in both flat and non-isotropic geometry. The equation of state and the deceleration parameter of the new agegraphic dark energy in a anisotropic Universe is obtained. We show that the combination of Brans-Dicke field and new agegraphic dark energy can accommodate ω_{\\varLambda}=-1 crossing for the equation of state of noninteracting dark energy. When an interaction between dark energy and dark matter is taken into account, the transition of ω_{\\varLambda} to phantom regime can be more easily accounted when the Einstein field equations is being resort. In conclusion, we find evidences that the new agegraphic dark energy in BD theory can not lead to a stable Universe favored by observations at the present time. The anisotropy of the Universe decreases and the Universe transits to an isotropic flat FRW Universe accommodating the present acceleration.

  16. Brans-Dicke inflation in light of the Planck 2015 data

    NASA Astrophysics Data System (ADS)

    Tahmasebzadeh, B.; Rezazadeh, K.; Karami, K.

    2016-07-01

    We study inflation in the Brans-Dicke gravity as a special model of the scalar-tensor gravity. We obtain the inflationary observables containing the scalar spectral index, the tensor-to-scalar ratio, the running of the scalar spectral index and the equilateral non-Gaussianity parameter in terms of the general form of the potential in the Jordan frame. Then, we compare the results for various inflationary potentials in light of the Planck 2015 data. Our study shows that in the Brans-Dicke gravity, the power-law, inverse power-law and exponential potentials are ruled out by the Planck 2015 data. But, the hilltop, Higgs, Coleman-Weinberg and natural potentials can be compatible with Planck 2015 TT,TE,EE+lowP data at 95% CL. Moreover, the D-brane, SB SUSY and displaced quadratic potentials can be in well agreement with the observational data since their results can lie inside the 68% CL region of Planck 2015 TT,TE,EE+lowP data.

  17. Interacting new agegraphic dark energy in nonflat Brans-Dicke cosmology

    SciTech Connect

    Sheykhi, Ahmad

    2010-01-15

    We construct a cosmological model of late acceleration based on the new agegraphic dark energy model in the framework of Brans-Dicke cosmology where the new agegraphic energy density {rho}{sub D}=3n{sup 2}m{sub p}{sup 2}/{eta}{sup 2} is replaced with {rho}{sub D}=3n{sup 2{phi}2}/(4{omega}{eta}{sup 2}). We show that the combination of the Brans-Dicke field and agegraphic dark energy can accommodate a w{sub D}=-1 crossing for the equation of state of noninteracting dark energy. When an interaction between dark energy and dark matter is taken into account, the transition of w{sub D} to the phantom regime can be more easily accounted for than when we resort to the Einstein field equations. In the limiting case {alpha}=0 ({omega}{yields}{infinity}), all previous results of the new agegraphic dark energy in Einstein gravity are restored.

  18. Cosmological constraints on ghost dark energy in the Brans-Dicke theory by using MCMC approach

    NASA Astrophysics Data System (ADS)

    Alavirad, Hamzeh; Sheykhi, Ahmad

    2014-06-01

    By using a Markov Chain Monte Carlo simulation, we investigate cosmological constraints on the ghost dark energy (GDE) model in the framework of the Brans-Dicke (BD) theory. A combination of the latest observational data of the cosmic microwave background radiation data from seven-year WMAP, the baryon acoustic oscillation data form the SDSS, the supernovae type Ia data from the Union2 and the X-ray gas mass fraction data from the Chandra X-ray observations of the largest relaxed galaxy clusters are used to perform constraints on GDE in the BD cosmology. In this paper, we consider both flat and non-flat universes together with interaction between dark matter and dark energy. The main cosmological parameters are obtained as: Ωbh2=0.0223-0.0013+0.0016, Ωch2=0.1149-0.0104+0.0088 and Ωk=0.0005-0.0073+0.0025. In addition, the Brans-Dicke parameter ω is estimated as 1/ω≃0.002.

  19. Phase transition of charged Black Holes in Brans-Dicke theory through geometrical thermodynamics

    NASA Astrophysics Data System (ADS)

    Hendi, S. H.; Panahiyan, S.; Panah, B. Eslam; Armanfard, Z.

    2016-07-01

    In this paper, we take into account black hole solutions of Brans-Dicke-Maxwell theory and investigate their stability and phase transition points. We apply the concept of geometry in thermodynamics to obtain phase transition points and compare its results with those, calculated in the canonical ensemble through heat capacity. We show that these black holes enjoy second order phase transitions. We also show that there is a lower bound for the horizon radius of physical charged black holes in Brans-Dicke theory, which originates from restrictions of positivity of temperature. In addition, we find that employing a specific thermodynamical metric in the context of geometrical thermodynamics yields divergencies for the thermodynamical Ricci scalar in places of the phase transitions. It will be pointed out that due to the characteristic behavior of the thermodynamical Ricci scalar around its divergence points, one is able to distinguish the physical limitation point from the phase transitions. In addition, the free energy of these black holes will be obtained and its behavior will be investigated. It will be shown that the behavior of the free energy in the place where the heat capacity diverges demonstrates second order phase transition characteristics.

  20. Henry's law constants of diacids and hydroxypolyacids: recommended values

    NASA Astrophysics Data System (ADS)

    Compernolle, S.; Müller, J.-F.

    2013-09-01

    In spite of the importance of diacids and functionalised diacids for organic aerosol formation through aqueous-phase processes in droplets and aerosol water, there seems to be no reliable set of experimental values for their Henry's law constants (HLC). We show that their estimation through the use of infinite dilution activity coefficients is also prone to error. Here we present HLC values for diacids and hydroxy polyacids determined from solubilities, water activities and vapour pressures of solids or solutions, by employing thermodynamic relationships. The vapour pressures are found to be the largest source of error, but the analysis of the obtained HLC points to inconsistencies among specific vapour pressure data sets. Although there is considerable uncertainty, the HLC of diacids appear to be higher than estimated by the often cited review work of Saxena and Hildemann (1996).

  1. Henry's law constants of diacids and hydroxy polyacids: recommended values

    NASA Astrophysics Data System (ADS)

    Compernolle, S.; Müller, J.-F.

    2014-03-01

    In spite of the importance of diacids and functionalised diacids for organic aerosol formation through aqueous-phase processes in droplets and aerosol water, there seems to be no reliable set of experimental values for their Henry's law constants (HLCs). We show that their estimation through the use of infinite dilution activity coefficients is also prone to error. Here we present HLC values for diacids and hydroxy polyacids determined from solubilities, water activities and vapour pressures of solids or solutions, by employing thermodynamic relationships. The vapour pressures are found to be the largest source of error, but the analysis of the obtained HLC points to inconsistencies among specific vapour pressure data sets. Although there is considerable uncertainty, the HLC defined as aqueous concentration per unit gaseous partial pressure of linear α- and ω-diacids appear to be higher than estimated by the often cited review work of Saxena and Hildemann (1996).

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

    PubMed Central

    Hu, Xiaoqing; Yang, Jingli; Li, Chenghao

    2015-01-01

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

  3. Application of Henry's Law for Binding Energies of Adsorbed Hydrogen

    NASA Astrophysics Data System (ADS)

    Gillespie, Andrew; Dohnke, Elmar; Stalla, David; Sweany, Mark; Pfeifer, Peter

    2015-03-01

    The method of isosteres is the simplest method used to calculate the differential enthalpy of adsorption. However, it is incredibly sensitive to the choice of model and respective fitting parameters. For a set of isotherms measured on a specific sample, most models converge upon a similar value at high coverage, but are inconsistent in the low pressure regime. In this talk, we investigate the application of various models for localized and mobile adsorption at low pressures in order to obtain binding energy of hydrogen to the adsorbent surface. Henry's Law analysis of the Langmuir Model of adsorption yield binding energies in excellent agreement with those obtained from the Clausius Clapeyron relation. Work supported by DOE-EERE, Award No. DE-FG36-08GO18142.

  4. Henry Hutchinson Stewart (1798-1879): from page to philanthropist.

    PubMed

    Breathnach, C S

    1998-03-01

    Henry Hutchinson Stewart [1798-1879] began life as a page to the Vice-Reine and came to the study of medicine rather belatedly. After some years in general practice he was appointed Governor to the Hospitals of the Houses of Industry in Dublin. In 1856 he was responsible for the removal of forgotten, friendless mental patients from the Houses of Industry to a disused hotel at Lucan outside the city. Later on, when a committee proposed to provide a training institution for the menatlly handicapped, he handed over his premises in Lucan to them with its annual income in addition to a donation. In his will he bequeathed further substantial sums to the Institution which still bears his name, and money was also made available to the Irish Universities to found valuable scholarships. PMID:11620006

  5. Henry More and the development of absolute time.

    PubMed

    Thomas, Emily

    2015-12-01

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

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

    SciTech Connect

    Carwell, H.

    1997-09-19

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

  7. A B Dick Model 555. Mimeograph Stencil Printer. An Individualized Model for a Differentiated Secretarial Single Skills Lab.

    ERIC Educational Resources Information Center

    Elgin Community Coll., IL.

    Intended to be used by secretarial science students in a single skills laboratory, this operations manual for a mimeograph stencil printer (A B Dick Model 555) contains step-by-step instructions and simple diagrams designed to be easily understood by the students. (Two other learning modules designed for student use in a single skills laboratory…

  8. More Than Two Sides to Every Coin: Using Melville's "Moby Dick" to Teach Objective and Subjective Description.

    ERIC Educational Resources Information Center

    Drake, David B.

    1995-01-01

    Explains a descriptive analysis exercise based on Chapter 99 of "Moby Dick." Notes that students are given a description of a coin, asked to draw the coin, and then freewrite about what they and their classmates have drawn. States that the exercise is intended to illustrate the relationship between objective and subjective description. (PA)

  9. Three-dimensional pin-to-pin analyses of VVER-440 cores by the MOBY-DICK code

    SciTech Connect

    Lehmann, M.; Mikolas, P.

    1994-12-31

    Nuclear design for the Dukovany (EDU) VVER-440s nuclear power plant is routinely performed by the MOBY-DICK system. After its implementation on Hewlett Packard series 700 workstations, it is able to perform routinely three-dimensional pin-to-pin core analyses. For purposes of code validation, the benchmark prepared from EDU operational data was solved.

  10. Henry`s law solubilities and Setchenow coefficients for biogenic reduced sulfur species obtained from gas-liquid uptake measurements

    SciTech Connect

    De Bruyn, W.J.; Swartz, E.; Hu, J.H.

    1995-04-20

    Biogenically produced reduced sulfur compounds, including dimethylsulfide (DMS, CH{sub 3}SCH{sub 3}), hydrogen sulfide (H{sub 2}S), carbon disulfide (CS{sub 2}), methyl mercaptan (CH{sub 3}SH), and carbonyl sulfide (OCS), are a major source of sulfur in the marine atmosphere. This source is estimated to contribute 25-40% of global sulfur emissions. These species and their oxidation products, dimethyl sulfoxide (DMSO), dimethyl sulfone (DMSO{sub 2}), and methane sulfonic acid (MSA), dominate the production of aerosol and cloud condensation nuclei (CCN) in the clean marine atmosphere. The multiphase chemical processes for these species must be understood in order to study the evolving role of combustion-produced sulfur oxides over the oceans. Using a newly developed bubble column apparatus, a series of aqueous phase uptake studies have been completed for the reduced sulfur species DMS, H{sub 2}S, CS{sub 2}, CH{sub 3}SH, and OCS. Aqueous phase uptake has been studied as a function of temperature (278-298 K), pH (1-14), H{sub 2}O{sub 2} concentration (0-1 M), NaCl concentration (0-5 M), and (NH{sub 4}){sub 2}SO{sub 4} concentration (0-4 M). The Henry`s law coefficients for CH{sub 3}SH and CS{sub 2} were determined for the first time, as were the Setchenow coefficients for all the species studied. 33 refs., 8 figs., 2 tabs.

  11. Gravitational Collapse in Husain space-time for Brans-Dicke Gravity Theory with Power-law Potential.

    NASA Astrophysics Data System (ADS)

    Rudra, Prabir

    2016-07-01

    The motive of this work is to study gravitational collapse in Husain space-time in Brans-Dicke gravity theory. Among many scalar-tensor theories of gravity, Brans-Dicke is the simplest and the impact of it can be regulated by two parameters associated with it, namely, the Brans-Dicke parameter, ω, and the potential-scalar field dependency parameter 'n' respectively. V. Husain's work on exact solution for null fluid collapse in 1996 has influenced many authors to follow his way to find the end-state of the homogeneous/inhomogeneous dust cloud. Vaidya's metric is used all over to follow the nature of future outgoing radial null geodesics. Detecting whether the central singularity is naked or wrapped by an event horizon, by the existence of future directed radial null geodesic emitted in past from the singularity is the basic objective. To point out the existence of positive trajectory tangent solution, both particular parametric cases(through tabular forms) and wide range contouring process have been applied. Precisely, perfect fluid's equation of state satisfies a wide range of phenomena : from dust to exotic fluid like dark energy. We have used the equation of state parameter 'k' to determine the end state of collapse in different cosmological era. Our main target is to check low ω (more deviations from Einstein gravity-more Brans Dicke effect) and negative 'k' zones. This particularly throws light on the nature of the end-state of collapse in accelerated expansion in Brans Dicke gravity. It is seen that for positive values of EoS parameter 'k', the collapse results in a black hole, whereas for negative values of 'k', naked singularity is the only outcome. It is also to be noted that "low ω" leads to the possibility of getting more naked singularities even for a non-accelerating universe.

  12. Gravitational collapse in Husain space-time for Brans-Dicke gravity theory with power-law potential

    NASA Astrophysics Data System (ADS)

    Rudra, Prabir; Biswas, Ritabrata; Debnath, Ujjal

    2014-12-01

    The motive of this work is to study gravitational collapse in Husain space-time in Brans-Dicke gravity theory. Among many scalar-tensor theories of gravity, Brans-Dicke is the simplest and the impact of it can be regulated by two parameters associated with it, namely, the Brans-Dicke parameter, ω, and the potential-scalar field dependency parameter n respectively. V. Husain's work on exact solution for null fluid collapse in 1996 has influenced many authors to follow his way to find the end-state of the homogeneous/inhomogeneous dust cloud. Vaidya's metric is used all over to follow the nature of future outgoing radial null geodesics. Detecting whether the central singularity is naked or wrapped by an event horizon, by the existence of future directed radial null geodesic emitted in past from the singularity is the basic objective. To point out the existence of positive trajectory tangent solution, both particular parametric cases (through tabular forms) and wide range contouring process have been applied. Precisely, perfect fluid's EoS satisfies a wide range of phenomena: from dust to exotic fluid like dark energy. We have used the EoS parameter k to determine the end state of collapse in different cosmological era. Our main target is to check low ω (more deviations from Einstein gravity-more Brans Dicke effect) and negative k zones. This particularly throws light on the nature of the end-state of collapse in accelerated expansion in Brans Dicke gravity. It is seen that for positive values of EoS parameter k, the collapse results in a black hole, whereas for negative values of k, naked singularity is the only outcome. It is also to be noted that "low ω" leads to the possibility of getting more naked singularities even for a non-accelerating universe.

  13. On Reading, Writing, and Computers: A Conversation with John Martin Henry.

    ERIC Educational Resources Information Center

    Brandt, Ron, Ed.

    1981-01-01

    With a simplified alphabet and interactive computer programing, John Henry Martin has developed a system by which children can learn to read and write far better than usual. In this interview, he explains his approach. (Author/MLF)

  14. 78 FR 8682 - Culturally Significant Objects Imported for Exhibition Determinations: “Henri Labrouste...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-06

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

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

    EPA Science Inventory

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

  16. Henry's Law Constant of Organic Nitriles Measured with GC-FID

    NASA Astrophysics Data System (ADS)

    Brewer, B.; Gangoda, M.; Lee, S.

    2012-12-01

    Nitriles are important atmospheric VOCs that paly key roles in the atmospheric nitrogen cycle and secondary aerosol formation. Nitriles and their oxidation products also have serious health effects and thus are important air pollutants. Henry's law constant is an important physical and chemical parameter to determine how gas phase species participate into gas-to-particle conversion and cloud formation and affect human health. Yet, measurements of Henry's law constants of nitriles are entirely lacking. We have developed a simple measurement technique to detect Henry's law constants of organic compounds using gas chromatography flame ionization detector (GC-FID) coupled with a bubble column. In this presentation, we will show Henry's law constants of a number of atmospherically relevant organic nitrile compounds and their temperature dependence.

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

    Code of Federal Regulations, 2014 CFR

    2014-10-01

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

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

    Code of Federal Regulations, 2013 CFR

    2013-10-01

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

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

    Code of Federal Regulations, 2010 CFR

    2010-10-01

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

  20. Thermodynamics of charged rotating black branes in Brans-Dicke theory with quadratic scalar field potential

    SciTech Connect

    Dehghani, M. H.; Pakravan, J.; Hendi, S. H.

    2006-11-15

    We construct a class of charged rotating solutions in (n+1)-dimensional Maxwell-Brans-Dicke theory with flat horizon in the presence of a quadratic potential and investigate their properties. These solutions are neither asymptotically flat nor (anti)-de Sitter. We find that these 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. We compute the finite Euclidean action through the use of counterterm method, and obtain the conserved and thermodynamic quantities by using the relation between the action and free energy in grand-canonical ensemble. We find that these quantities satisfy the first law of thermodynamics, and the entropy does not follow the area law.

  1. Two fluid scenario for dark energy model in Brans-Dicke theory of gravitation

    NASA Astrophysics Data System (ADS)

    Reddy, D. R. K.; Anitha, S.; Umadevi, S.

    2014-04-01

    In this paper, we study the evolution of the dark energy parameter in the spatially homogeneous and isotropic Friedmann-Robertson-Walker (FRW) model filled with barotropic fluid and dark energy in the scalar-tensor theory of gravitation proposed by Brans and Dicke (Phys. Rev. 24:925, 1961). A determinate solution is presented using (i) the special law of variation for Hubble's parameter proposed by Berman (Nuovo Cimento B 74:183, 1983) and (ii) trace free energy momentum tensor of the two fluid. Two cases of interacting and non-interacting fluid (barotropic and dark energy) scenario is considered and general results are obtained. The physical aspects of the results obtained are, also, discussed.

  2. Power-Law Entropy-Corrected HDE and NADE in Brans-Dicke Cosmology

    NASA Astrophysics Data System (ADS)

    Sheykhi, A.; Karami, K.; Jamil, M.; Kazemi, E.; Haddad, M.

    2012-06-01

    Considering the power-law corrections to the black hole entropy, which appear in dealing with the entanglement of quantum fields inside and outside the horizon, the holographic energy density is modified accordingly. In this paper we study the power-law entropy-corrected holographic dark energy in the framework of Brans-Dicke theory. We investigate the cosmological implications of this model in detail. We also perform the study for the new agegraphic dark energy model and calculate some relevant cosmological parameters and their evolution. As a result we find that this model can provide the present cosmic acceleration and even the equation of state parameter of this model can cross the phantom line w D =-1 provided the model parameters are chosen suitably.

  3. Interacting Ricci Logarithmic Entropy-Corrected Holographic Dark Energy in Brans-Dicke Cosmology

    NASA Astrophysics Data System (ADS)

    Pasqua, Antonio; Khomenko, Iuliia

    2013-11-01

    In the derivation of Holographic Dark Energy (HDE), the area law of the black hole entropy assumes a crucial role. However, the entropy-area relation can be modified including some quantum effects, motivated from the Loop Quantum Gravity (LQG), string theory and black hole physics. In this paper, we study the cosmological implications of the interacting logarithmic entropy-corrected HDE (LECHDE) model in the framework of Brans-Dicke (BD) cosmology. As system’s infrared (IR) cut-off, we choose the average radius of Ricci scalar curvature, i.e. R -1/2. We obtain the Equation of State (EoS) parameter ω D , the deceleration parameter q and the evolution of energy density parameter of our model in a non-flat universe. Moreover, we study the limiting cases corresponding to our model without corrections and to the Einstein’s gravity.

  4. From Floquet to Dicke: Quantum Spin Hall Insulator Interacting with Quantum Light.

    PubMed

    Gulácsi, Balázs; Dóra, Balázs

    2015-10-16

    Time-periodic perturbations due to classical electromagnetic fields are useful to engineer the topological properties of matter using the Floquet theory. Here we investigate the effect of quantized electromagnetic fields by focusing on the quantized light-matter interaction on the edge state of a quantum spin Hall insulator. A Dicke-type superradiant phase transition occurs at arbitrary weak coupling, the electronic spectrum acquires a finite gap, and the resulting ground-state manifold is topological with a Chern number of ±1. When the total number of excitations is conserved, a photocurrent is generated along the edge, being pseudoquantized as ωln(1/ω) in the low-frequency limit and decaying as 1/ω for high frequencies with ω the photon frequency. The photon spectral function exhibits a clean Goldstone mode, a Higgs-like collective mode at the optical gap and the polariton continuum. PMID:26550853

  5. Non-existence of Brans-Dicke theory in higher dimensional FRW universe

    NASA Astrophysics Data System (ADS)

    Çaǧlar, Halife; Aygün, Sezgin

    2016-06-01

    In this paper, we have studied exact solutions of Brans-Dicke (BD) theory for higher dimensional generalized Friedmann-Robertson-Walker (FRW) universe in the presence of strange quark matter (SQM) attached to the string cloud and domain walls. We have obtained that string tension density does not survive in this model. This result agrees with Kiran and Reddy, Krori et al., Sahoo and Mishra and Reddy. Also we have obtained constant scalar field in the presence of string cloud and domain walls. Then BD theory does not observe for higher dimensional FRW universe with SQM attached to the string cloud and domain walls. Our BD solutions turn into general relativity (GR). Finally, some physical properties are discussed.

  6. Parametric fluorescence in a sequence of resonators: An analogy with Dicke superradiance

    NASA Astrophysics Data System (ADS)

    Onodera, T.; Liscidini, Marco; Sipe, J. E.; Helt, L. G.

    2016-04-01

    We investigate spontaneous four-wave mixing (SFWM) in a single-channel side-coupled integrated spaced sequence of resonators (SCISSOR). Analytic expressions for the number of photon pairs generated, as well as the biphoton wave function (joint spectral amplitude) describing the pairs, are derived and numerically computed for different pump pulse durations and numbers of ring resonators. In the limit of a long input pump pulse, we show a strong analogy between super-linear scaling of generation efficiency with respect to the number of rings in the structure and Dicke superradiance. More generally, we discuss in detail the factors that influence the shape of the biphoton wave function, as well as the conditions for observing super-SFWM.

  7. Speed-dependent effects and Dicke narrowing in nitrogen-broadened oxygen

    NASA Astrophysics Data System (ADS)

    Wójtewicz, S.; Masłowski, P.; Cygan, A.; Wcisło, P.; Zaborowski, M.; Piwiński, M.; Ciuryło, R.; Lisak, D.

    2015-11-01

    We present the line-shape analysis of the nitrogen-broadened P9 P9 oxygen B-band transition measured by the optical frequency comb-assisted Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectrometer. Perturbation by both oxygen and nitrogen molecules is taken into account simultaneously in the line-shape analysis. Several line-shape models describing physical effects such as Dicke narrowing, the speed dependence of collisional broadening and shifting, and the correlation between velocity- and phase-changing collisions were used in the analysis. The comparison between the hypergeometric and quadratic approximations of the speed-dependent effects is presented. Observed line narrowing is mostly determined by the speed dependence of the collisional broadening.

  8. On holographic dark energy in non-isotropic Universe with Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Hossienkhani, H.

    2016-07-01

    A spatially homogeneous and anisotropic Bianchi type I Universe has been studied with the interacting holographic dark energy (HDE) in the framework of Brans-Dicke theory. At first, we obtain the equation of state parameter, the deceleration parameter and the evolution equation of the interacting HDE in BD theory. We find that, in this case, ω_{Λ} can cross the phantom line (ω_{Λ}>-1) and eventually the Universe approaches a de-Sitter phase of expansion (ω_{Λ}→-1). Then, we extend our study to the case of stability of the interacting HDE in BI Universe according to BD theory. In case of we find that the squared sound speed of the interacting HDE is either positive or negative. This implies that the interacting HDE in BD theory can lead to a stable Universe favored by observations at the present time in an anisotropic Universe.

  9. Entanglement dynamics of the ultrastrong-coupling three-qubit Dicke model

    NASA Astrophysics Data System (ADS)

    Mao, Lijun; Liu, Yanxia; Zhang, Yunbo

    2016-05-01

    We give an analytical description of the dynamics of the three-qubit Dicke model using the adiabatic approximation in the parameter regime where the qubit transition frequencies are far off-resonance with the field frequency and the interaction strengths reach the ultrastrong-coupling regimes. Qualitative differences arise upon comparison to single- and two-qubit systems. Simple analytic formulas show that three revival sequences produce a three-frequency beat note in the time evolution of the population. We find an explicit way to estimate the dynamics for qubit-field and qubit-qubit entanglement inside the three-qubit system in the ultrastrong-coupling regime, and the resistance to sudden death proves that the entanglement in the Greenberger-Horne-Zeilinger state is more robust than that in the W state.

  10. Particle collisions near a Kerr-like black hole in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Sultana, Joseph; Bose, Benjamin

    2015-11-01

    A recent discovery in 2009 by Bañados, Silk and West (BSW), which generated a lot of interest, involves the arbitrary high center-of-mass (c.m.) energies for free particle collisions at the horizon of an extreme kerr black hole when one of the free particles has a critical value of the angular momentum. In light of this we consider the rotating Kerr-like black hole solution in Brans-Dicke theory and study the motion of scalar test charges in the vicinity of the black hole horizon. We show that the interaction of the test scalar charges with the background scalar field in this spacetime suppresses the c.m. energy for collisions occurring near the event horizon, and the value of the c.m. energy there, is finite irrespective of whether the black hole is extreme or not and its value is also independent of the angular momenta of the colliding test charges.

  11. Modified Brans–Dicke cosmology with matter-scalar field interaction

    NASA Astrophysics Data System (ADS)

    Kofinas, Georgios; Papantonopoulos, Eleftherios; Saridakis, Emmanuel N.

    2016-08-01

    We discuss the cosmological implications of an extended Brans–Dicke theory presented recently, in which there is an energy exchange between the scalar field and ordinary matter, determined by the theory. A new mass scale is generated in the theory which modifies the Friedmann equations with field-dependent corrected kinetic terms. In a radiation Universe the general solutions are found and there are branches with complete removal of the initial singularity, while at the same time a transient accelerating period can occur within deceleration. Entropy production is also possible in the early Universe. In the dust era, late-times acceleration has been found numerically in agreement with the correct behavior of the density parameters and the dark energy equation of state, while the gravitational constant has only a slight variation over a large redshift interval in agreement with observational bounds.

  12. Cosmic microwave background with Brans-Dicke gravity. II. Constraints with the WMAP and SDSS data

    NASA Astrophysics Data System (ADS)

    Wu, Feng-Quan; Chen, Xuelei

    2010-10-01

    Using the covariant formalism developed in a companion paper [F.-Q. Wu, L. E. Qiang, X. Wang, and X. Chen, preceding Article, Phys. Rev. DPRVDAQ1550-7998 82, 083002 (2010)] (paper I), we derive observational constraints on the Brans-Dicke model in a flat Friedmann-Lemaître-Robertson-Walker universe with a cosmological constant and cold dark matter. The CMB observations we use include the Wilkinson Microwave Anisotropy Probe 5 yr data, the Arcminute Cosmology Bolometer Array Receiver 2007 data, the Cosmic Background Imager polarization data, and the Balloon Observations of Millimetric Extragalactic Radiation and Geophysics 2003 flight data. For the large scale structure we use the matter power spectrum data measured with the luminous red galaxy survey of the Sloan Digital Sky Survey Data Release 4. We parametrize the Brans-Dicke parameter ω with a new parameter ζ=ln⁡(1/ω+1), and use the Markov-Chain Monte Carlo method to explore the parameter space. We find that using CMB data alone, one could place some constraints on positive ζ or ω, but negative ζ or ω could not be constrained effectively. However, with additional large scale structure data, one could break the degeneracy at ζ<0. The 2σ (95.5%) bound on ζ is -0.00837<ζ<0.01018 (corresponding to ω<-120.0 or ω>97.8). We also obtained constraints on G˙/G, the rate of change of G at present, as -1.75×10-12yr-1

  13. The head that wears the crown: Henry VIII and traumatic brain injury.

    PubMed

    Ikram, Muhammad Qaiser; Sajjad, Fazle Hakim; Salardini, Arash

    2016-06-01

    Henry VIII of England is one of the most controversial figures in European history. He was born on 28 June 1491 as the second son of Henry VII and Elizabeth of York and became the heir to the English throne after his elder brother died prematurely. A contradictory picture of Henry's character emerges from history: the young Henry was a vigorous, generous and intelligent king who saw early military and naval successes. In contrast, in his later years he became cruel, petty and tyrannical. His political paranoia and military misjudgements are in direct contrast to his earlier successes and promise. Several hypotheses have been put forward regarding his transformation from a renaissance king to a later medieval tyrant, including endocrinopathies, psychiatric illnesses and traumatic brain injury. In this paper we examine the historical evidence linking the change in Henry's personality and health problems to traumatic brain injury. To our knowledge this is the first systematic neurological study of traumatic brain injury in Henry VIII. PMID:26857293

  14. Henry's voices: the representation of auditory verbal hallucinations in an autobiographical narrative.

    PubMed

    Demjén, Zsófia; Semino, Elena

    2015-06-01

    The book Henry's Demons (2011) recounts the events surrounding Henry Cockburn's diagnosis of schizophrenia from the alternating perspectives of Henry himself and his father Patrick. In this paper, we present a detailed linguistic analysis of Henry's first-person accounts of experiences that could be described as auditory verbal hallucinations. We first provide a typology of Henry's voices, taking into account who or what is presented as speaking, what kinds of utterances they produce and any salient stylistic features of these utterances. We then discuss the linguistically distinctive ways in which Henry represents these voices in his narrative. We focus on the use of Direct Speech as opposed to other forms of speech presentation, the use of the sensory verbs hear and feel and the use of 'non-factive' expressions such as I thought and as if. We show how different linguistic representations may suggest phenomenological differences between the experience of hallucinatory voices and the perception of voices that other people can also hear. We, therefore, propose that linguistic analysis is ideally placed to provide in-depth accounts of the phenomenology of voice hearing and point out the implications of this approach for clinical practice and mental healthcare. PMID:25505160

  15. Enzyme-Catalyzed Henry Reaction in Choline Chloride-Based Deep Eutectic Solvents.

    PubMed

    Tian, Xuemei; Zhang, Suoqin; Zheng, Liangyu

    2016-01-01

    The enzyme-catalyzed Henry reaction was realized using deep eutectic solvents (DESs) as a reaction medium. The lipase from Aspergillus niger (lipase AS) showed excellent catalytic activity toward the substrates aromatic aldehydes and nitromethane in choline chloride:glycerol at a molar ratio of 1:2. Addition of 30 vol% water to DES further improved the lipase activity and inhibited DES-catalyzed transformation. A final yield of 92.2% for the lipase AS-catalyzed Henry reaction was achieved under optimized reaction conditions in only 4 h. In addition, the lipase AS activity was improved by approximately 3-fold in a DES-water mixture compared with that in pure water, which produced a final yield of only 33.4%. Structural studies with fluorescence spectroscopy showed that the established strong hydrogen bonds between DES and water may be the main driving force that affects the spatial conformation of the enzyme, leading to a change in lipase activity. The methodology was also extended to the aza-Henry reaction, which easily occurred in contrast to that in pure water. The enantioselectivity of both Henry and aza-Henry reactions was not found. However, the results are still remarkable, as we report the first use of DES as a reaction medium in a lipase-catalyzed Henry reaction. PMID:26437947

  16. Henri Poincaré and the principle of relativity

    NASA Astrophysics Data System (ADS)

    Messager, Valérie; Gilmore, Robert; Letellier, Christophe

    2012-09-01

    Often considered as the last 'encyclopedist', Henri Poincaré died one hundred years ago. If he was a prominent man in 1900 French Society, his heritage is not so clearly recognised, particularly in France. Among his too often misunderstood works is his contribution to the theory of relativity, mainly because it is almost never presented within Poincaré's general approach to science, including his philosophical writings. Our aim is therefore to provide an historical account of the main steps (experimental as well as theoretical) which led Poincaré to contribute to the theory of relativity. Starting from the optical experiments which led to the inconsistency of the classical (Galilean) composition law for velocities to explain light propagation, we introduce the FitzGerald and Lorentz contraction which was viewed as the 'sole hypothesis' to explain the Michelson and Morley experiment. We then show that Poincaré's contribution starts with a discussion of the principles governing the mechanics and was built step by step up to express in all its generality the principle of relativity. Poincaré thus showed the invariance of the Maxwell equations under the Lorentz transformation. In doing so, he also discovered the right composition law for velocities. Poincaré's approach to philosophy is detailed to help the reader to understand what a theory meant to him.

  17. James Henry Marriott: New Zealand's first professional telescope-maker

    NASA Astrophysics Data System (ADS)

    Orchiston, Wayne; Romick, Carl; Brown, Pendreigh.

    2015-11-01

    James Henry Marriott was born in London in 1799 and trained as an optician and scientific instrument- maker. In 1842 he emigrated to New Zealand and in January 1843 settled in the newly-established town of Wellington. He was New Zealand's first professional telescope-maker, but we have only been able to locate one telescope made by him while in New Zealand, a brass 1-draw marine telescope with a 44-mm objective, which was manufactured in 1844. In 2004 this marine telescope was purchased in Hawaii by the second author of this paper. In this paper we provide biographical information about Marriott, describe his 1844 marine telescope and speculate on its provenance. We conclude that although he may have been New Zealand's first professional telescope-maker Marriot actually made very few telescopes or other scientific instruments. As such, rather than being recognised as a pioneer of telescope-making in New Zealand he should be remembered as the founder of New Zealand theatre.

  18. The enigmatic figure of Dr Henry Maudsley (1835-1918).

    PubMed

    Pantelidou, Maria; Demetriades, Andreas K

    2014-08-01

    In spite of his contribution to psychiatry in 19th century Britain, Henry Maudsley remains a mysterious figure, a man mostly known for his donation to the London County Council for the building of the Maudsley Hospital and for The Maudsley Annual Lecture created in honour of his benevolence. Besides Sir Aubrey Lewis' article in 1951 and Michael Collie's attempt in 1988 to construct a biographical study on Maudsley, there does not seem to be any current endeavour to tell the story of his life, whereas Trevor Turner's contribution to the 2004 Oxford Dictionary of National Biography gives a somewhat scathing but unattributed account of Maudsley's personality. This essay attempts to explore his contributions to the Medico-Psychological Association (MPA), the current Royal College of Psychiatrists, his editorship of the Journal of Mental Health (currently named the British Journal of Psychiatry), his literary contributions and his vision for a psychiatric hospital. This essay is an attempt to demystify his figure and to explore some of the rumours and criticisms surrounding his name and the reasons why so little has been written about him. It is also a venture to unravel his complex personality and his intricate philosophy. PMID:24944050

  19. Genetic Analysis of the Henry Mountains Bison Herd.

    PubMed

    Ranglack, Dustin H; Dobson, Lauren K; du Toit, Johan T; Derr, James

    2015-01-01

    Wild American plains bison (Bison bison) populations virtually disappeared in the late 1800s, with some remnant animals retained in what would become Yellowstone National Park and on private ranches. Some of these private bison were intentionally crossbred with cattle for commercial purposes. This forced hybridization resulted in both mitochondrial and nuclear introgression of cattle genes into some of the extant bison genome. As the private populations grew, excess animals, along with their history of cattle genetics, provided founders for newly established public bison populations. Of the US public bison herds, only those in Yellowstone and Wind Cave National Parks (YNP and WCNP) appear to be free of detectable levels of cattle introgression. However, a small free-ranging population (~350 animals) exists on public land, along with domestic cattle, in the Henry Mountains (HM) of southern Utah. This isolated bison herd originated from a founder group translocated from YNP in the 1940s. Using genetic samples from 129 individuals, we examined the genetic status of the HM population and found no evidence of mitochondrial or nuclear introgression of cattle genes. This new information confirms it is highly unlikely for free-living bison to crossbreed with cattle, and this disease-free HM bison herd is valuable for the long-term conservation of the species. This bison herd is a subpopulation of the YNP/WCNP/HM metapopulation, within which it can contribute significantly to national efforts to restore the American plains bison to more of its native range. PMID:26673758

  20. Henry Beecher's Contributions to the Ethics of Clinical Research.

    PubMed

    Veatch, Robert M

    2016-01-01

    In the 1950s and '60s, Henry Beecher pioneered the discussion of the ethics of clinical research, leading eventually to the publication of the famous New England Journal of Medicine article summarizing 22 research studies that Beecher suggests were unethical. Those studies generally showed a pattern of posing serious risks to subjects without anticipated proportional benefit. Beecher famously claimed that the problem was not that researchers were malicious or evil; rather, he claimed the problem was they manifested thoughtlessness or carelessness. He called for more rigorous self-scrutiny rather than public review.This article argues that Beecher's reliance on conscientious investigators is problematic. In particular, it focuses on benefits and harms to the exclusion of other moral criteria. However, both research subjects and public regulators are also concerned about autonomy and the consent requirement, confidentiality, and fairness in subject selection and research design. The movement in the 1970s toward more public scrutiny was critical, even though Beecher was right in holding that it was not "vicious disregard for subject welfare" that explained unethical protocols. PMID:27499481

  1. The contributions of Henry E. Sigerist to health service organization.

    PubMed

    Terris, M

    1975-01-01

    Henry E. Sigerist made profound and strikingly original contributions to health service organization. Not only did he expand greatly our concepts of the functions of medicine, but he redefined health in a manner which was later to be paraphrased by the World Health Organization. Sigerist's account of the evolution of the physician and his discussion of the role of the people in the fight for health provide important new insights into current realities, while his remarkable analysis of the genesis of national health insurance makes it possible to understand its continued absence in the United States. Although he was in the forefront of the campaign for national health insurance, Sigbrist always considered it inferior to a national health service. His thorough studies of the Soviet national health service opened new vistas in the promotion of health and prevention of disease and the development of team practice in health centers. Sigerist's impact was world-wide, and was particularly important in Chile, Cuba, China, and Great Britain. PMID:765888

  2. Genetic Analysis of the Henry Mountains Bison Herd

    PubMed Central

    du Toit, Johan T.; Derr, James

    2015-01-01

    Wild American plains bison (Bison bison) populations virtually disappeared in the late 1800s, with some remnant animals retained in what would become Yellowstone National Park and on private ranches. Some of these private bison were intentionally crossbred with cattle for commercial purposes. This forced hybridization resulted in both mitochondrial and nuclear introgression of cattle genes into some of the extant bison genome. As the private populations grew, excess animals, along with their history of cattle genetics, provided founders for newly established public bison populations. Of the US public bison herds, only those in Yellowstone and Wind Cave National Parks (YNP and WCNP) appear to be free of detectable levels of cattle introgression. However, a small free-ranging population (~350 animals) exists on public land, along with domestic cattle, in the Henry Mountains (HM) of southern Utah. This isolated bison herd originated from a founder group translocated from YNP in the 1940s. Using genetic samples from 129 individuals, we examined the genetic status of the HM population and found no evidence of mitochondrial or nuclear introgression of cattle genes. This new information confirms it is highly unlikely for free-living bison to crossbreed with cattle, and this disease-free HM bison herd is valuable for the long-term conservation of the species. This bison herd is a subpopulation of the YNP/WCNP/HM metapopulation, within which it can contribute significantly to national efforts to restore the American plains bison to more of its native range. PMID:26673758

  3. Henry Duret (1849-1921): a surgeon and forgotten neurologist.

    PubMed

    Walusinski, Olivier; Courrivaud, Philippe

    2014-01-01

    Henri Duret (1849-1921) was a surgeon whose training started in the laboratory of Jean-Martin Charcot and Alfred Vulpian at La Salpêtrière in 1874. Using injections of colored gelatine, Duret was the first to describe the distribution of supply arteries in the brainstem and then in the cortex. His descriptions correlated irrigated territories, infarcted zones and secondary neurological deficits. He focused his 1878 thesis on experimental studies of brain trauma and localized the origin of disturbances in autonomic function and vigilance to the brainstem. He linked these disturbances to microhemorrhages affecting the medulla and pons, which are now known as Duret hemorrhages. Over 40 years, he authored numerous publications on digestive and gynecological surgery and on teaching in these areas. In 1905, another of his innovative works was published, which covered brain tumours, their clinical manifestations, the pathophysiological consequences of intracranial hypertension and the corresponding surgical treatments. This little-known treatise is in fact a pioneering work in neurosurgery, published well before the more familiar works of Victor Horsley and Harvey Cushing. PMID:25227400

  4. Extended phase space thermodynamics and P-V criticality of charged black holes in Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Hendi, S. H.; Armanfard, Z.

    2015-10-01

    Motivated by conformal relation between dilaton gravity and Brans-Dicke theory, in this paper, we are taking into account extended phase space thermodynamics to investigate phase transition of charged black holes. We regard spherically symmetric charged black hole solutions in the presence of a scalar field in both Einstein and Jordan frames and calculate related conserved and thermodynamic quantities. Then, we study the analogy of the black hole solution with the Van der Waals liquid-gas system in the extended phase space by considering the cosmological constant proportional to thermodynamical pressure. We obtain critical values of thermodynamic coordinates and plot P-V and G-T diagrams to study the phase transition points and compare the results of dilaton gravity and Brans-Dicke theory.

  5. Interaction of Gravitational field and Brans-Dicke field in R/W universe containing Dark Energy like fluid

    NASA Astrophysics Data System (ADS)

    Priyokumar Singh, Kangujam; Manihar Singh, Koijam; Dewri, Mukunda

    2016-04-01

    On studying some new models of Robertson-Walker universes with a Brans-Dicke scalar field, it is found that most of these universes contain a dark energy like fluid which confirms the present scenario of the expansion of the universe. In one of the cases, the exact solution of the field equations gives a universe with a false vacuum, while in another it reduces to that of dust distribution in the Brans-Dicke cosmology when the cosmological constant is not in the picture. In one particular model it is found that the universe may undergo a Big Rip in the future, and thus it will be very interesting to investigate such models further.

  6. On the Non- k-Separability of Dicke Class of States and N-Qudit W States

    NASA Astrophysics Data System (ADS)

    Ananth, N.; Senthilvelan, M.

    2016-03-01

    In this paper, we present the separability criteria to identify non- k-separability and genuine multipartite entanglement in mixed multipartite states using elements of density matrices. Our criteria can detect the non- k-separability of Dicke class of states, anti W states and mixtures thereof and higher dimensional W class of states. We then investigate the performance of our criteria by considering N-qubit Dicke states with arbitrary excitations added with white noise and mixture of N-qudit W state with white noise. We also study the robustness of our criteria against white noise. Further, we demonstrate that our criteria are experimentally implementable by means of local observables such as Pauli matrices and generalized Gell-Mann matrices.

  7. The Works of Henry Moseley, 1887-1915

    NASA Astrophysics Data System (ADS)

    Scerri, Eric

    2013-04-01

    In 1913 Henry Moseley, an unknown young English physicist published an article in the Philosophical Magazine under the title of ``The High Frequency Spectra of the Elements.'' The 10-page article was to have far reaching implications in both chemistry and physics and helped to resolve a major conundrum in the periodic table of the elements. The talk will briefly examine the life and work of Moseley who died tragically while fighting in the trenches of World War I in 1915. The build-up to the discovery of atomic number took several different avenues including contributions from Rutherford and Barkla. However the more direct motivation for Moseley's work, as he readily acknowledged, were the articles of an unknown Dutch econometrician Anton Van den Broek who attempted to improve on Mendeleev's periodic table. Moseley began as a student of Rutherford at Manchester and took a keen interest in the development of research using X-rays following the work of Roentgen, von Laue and Bragg. Although Rutherford was at first reluctant to enter this new field he soon yielded to young Moseley's request and sent him to Leeds for brief training with Bragg. On returning to Manchester, Moseley devised an ingenious apparatus in which a set of metal samples could be rotated so as to become the target for a beam of electrons in order to measure the frequencies of the emitted K X-rays. The first set of such experiments used nine successive elements in the periodic table, from titanium to zinc. Moseley's now immense fame rests with the results of this study as well as a subsequent one which extended the study into a further 30 elements, in addition to the use that his method was put to by himself as well as subsequent chemists and physicists.

  8. Solute and heat transport model of the Henry and Hilleke laboratory experiment

    USGS Publications Warehouse

    Langevin, C.D.; Dausman, A.M.; Sukop, M.C.

    2010-01-01

    SEAWAT is a coupled version of MODFLOW and MT3DMS designed to simulate variable-density ground water flow and solute transport. The most recent version of SEAWAT, called SEAWAT Version 4, includes new capabilities to represent simultaneous multispecies solute and heat transport. To test the new features in SEAWAT, the laboratory experiment of Henry and Hilleke (1972) was simulated. Henry and Hilleke used warm fresh water to recharge a large sand-filled glass tank. A cold salt water boundary was represented on one side. Adjustable heating pads were used to heat the bottom and left sides of the tank. In the laboratory experiment, Henry and Hilleke observed both salt water and fresh water flow systems separated by a narrow transition zone. After minor tuning of several input parameters with a parameter estimation program, results from the SEAWAT simulation show good agreement with the experiment. SEAWAT results suggest that heat loss to the room was more than expected by Henry and Hilleke, and that multiple thermal convection cells are the likely cause of the widened transition zone near the hot end of the tank. Other computer programs with similar capabilities may benefit from benchmark testing with the Henry and Hilleke laboratory experiment. Journal Compilation ?? 2009 National Ground Water Association.

  9. Solute and heat transport model of the Henry and hilleke laboratory experiment.

    PubMed

    Langevin, Christian D; Dausman, Alyssa M; Sukop, Michael C

    2010-01-01

    SEAWAT is a coupled version of MODFLOW and MT3DMS designed to simulate variable-density ground water flow and solute transport. The most recent version of SEAWAT, called SEAWAT Version 4, includes new capabilities to represent simultaneous multispecies solute and heat transport. To test the new features in SEAWAT, the laboratory experiment of Henry and Hilleke (1972) was simulated. Henry and Hilleke used warm fresh water to recharge a large sand-filled glass tank. A cold salt water boundary was represented on one side. Adjustable heating pads were used to heat the bottom and left sides of the tank. In the laboratory experiment, Henry and Hilleke observed both salt water and fresh water flow systems separated by a narrow transition zone. After minor tuning of several input parameters with a parameter estimation program, results from the SEAWAT simulation show good agreement with the experiment. SEAWAT results suggest that heat loss to the room was more than expected by Henry and Hilleke, and that multiple thermal convection cells are the likely cause of the widened transition zone near the hot end of the tank. Other computer programs with similar capabilities may benefit from benchmark testing with the Henry and Hilleke laboratory experiment. PMID:19563419

  10. Temperature-Dependent Henry's Law Constants of Atmospheric Amines.

    PubMed

    Leng, Chunbo; Kish, J Duncan; Roberts, Jason E; Dwebi, Iman; Chon, Nara; Liu, Yong

    2015-08-20

    There has been growing interest in understanding atmospheric amines in the gas phase and their mass transfer to the aqueous phase because of their potential roles in cloud chemistry, secondary organic aerosol formation, and the fate of atmospheric organics. Temperature-dependent Henry's law constants (KH) of atmospheric amines, a key parameter in atmospheric chemical transport models to account for mass transfer, are mostly unavailable. In this work, we investigated gas-liquid equilibria of five prevalent atmospheric amines, namely 1-propylamine, di-n-propylamine, trimethylamine, allylamine, and 4-methylmorpholine using bubble column technique. We reported effective KH, intrinsic KH, and gas phase diffusion coefficients of these species over a range of temperatures relevant to the lower atmosphere for the first time. The measured KH at 298 K and enthalpy of solution for 1-propylamine, di-n-propylamine, trimethylamine, allylamine, and 4-methylmorpholine are 61.4 ± 4.9 mol L(-1) atm(-1) and -49.0 ± 4.8 kJ mol(-1); 14.5 ± 1.2 mol L(-1) atm(-1) and -72.5 ± 6.8 kJ mol(-1); 8.9 ± 0.7 mol L(-1) atm(-1) and -49.6 ± 4.7 kJ mol(-1); 103.5 ± 10.4 mol L(-1) atm(-1) and -42.7 ± 4.3 kJ mol(-1); and 952.2 ± 114.3 mol L(-1) atm(-1) and -82.7 ± 9.7 kJ mol(-1), respectively. In addition, we evaluated amines' characteristic times to achieve gas-liquid equilibrium for partitioning between gas and aqueous phases. Results show gas-liquid equilibrium can be rapidly established at natural cloud droplets surface, but the characteristic times may be extended substantially at lower temperatures and pHs. Moreover, our findings imply that atmospheric amines are more likely to exist in cloud droplets, and ambient temperature, water content, and pH of aerosols play important roles in their partitioning. PMID:26200814

  11. [Henry Toussaint and Louis Pasteur. Rivalry over a vaccine].

    PubMed

    Chevallier-Jussiau, Nadine

    2010-01-01

    Henry Toussaint (1847-1890) is a veterinary who studied in Veterinary School of Lyon with his great master Auguste Chauveau the famous physiologist. This place is the First School founded in Europe at the end of the XVIIIth century and has opened a way of thinking. His carrer brilliant and rich begins first in Lyon and then when he is named Professor of Anatomy and Physiology at the Veterinary School of Toulouse. Doctor of Science and Doctor of Medecine Toussaint applies "the experimental method" to his research in his laboratory and makes a lot of publications. He starts with Anatomy, then Physiology and soon he prioritizes his research to infestious diseases which cause serious damage to cattle in this time. He developes his own methods about anthrax an its "bacteridie", its nature, its way of culture and especially he studies the physiopathology of this disease. Pasteur is a renowned scientist who does study Microbiology at the same time in his laboratory in Paris, and precisely anthrax. He has explained his theories about "microbes" and has predominant advice. Toussaint admires Pasteur; in the year 1879 he finds first and isolates the microbe of "cholera des poules" (now Pasteurella) and gives Pasteur this new germ which will be used by Pasteur for his particular works about reducing of virulence by successive subcultures. In 1880 with his publishing on July 12 at the Academy of Science, Toussaint presents his successful result with an attenuated vaccine against anthrax: he has got protection against anthrax for dogs and sheep by using a vaccine which he has reduced off virulence by chemical manner. Academy congratulates him. Pasteur jealous of one's reputation contests the demonstration of Toussaint because he does not believe in the chemical method too different from his tests but will make use of this method for an experience open to the public in Pouilly-le-Fort in 1881. After this promotional event Pasteur will product and sell vaccines maked in his

  12. Annie Jump Cannon: `` Life after The Henry Draper Catalogue.''

    NASA Astrophysics Data System (ADS)

    Welther, B. L.

    1993-05-01

    Seventy-five years ago the first three volumes of The Henry Draper Catalogue were published. The pages printed in 1918 contain the spectral types, revised magnitudes, and updated positions for more than 77,000 stars. For the nine volumes of the catalogue, Cannon classified spectra for 225,300 stars; and in her lifetime, spectra for almost 400,000 stars. This work netted her half a dozen honorary degrees, the Draper Medal of the NAS, and numerous other prizes and honors. In his preface to Volume 1, Edward Pickering noted that it took two years to process the copy for the initial volumes and estimated that it would take two more years to complete the copy for the remaining volumes. But shortly after he wrote the preface for Volume 3 in December 1918, Pickering died. And it proved to take three times as long as he had predicted to complete the publication of all nine volumes of the catalogue by the spring of 1924. Although Cannon had enjoyed much more independence and status than the other women at HCO, she had looked to Pickering for guidance and financial support for her astronomical projects. Without him, she had to develop other resources and also had to represent the Harvard Classification for the first IAU meeting in Rome in 1922. Although she did not attend the meeting, she corresponded with Frederick Seares at Mount Wilson Observatory about various questions that astronomers had raised about classifying spectra. Meanwhile, in 1921 Harlow Shapley was appointed Director of HCO. He oversaw the publication of the final volumes of the HD and encouraged Cannon to extend it for stars in special regions. For the HD Extension, he hired Margaret Walton to assist Cannon. But the cost of labor to determine positions and magnitudes was prohibitive, so for many stars the HDE lists only the BD number and spectral type. Even that format proved too costly in the depression and war years. Consequently, the last volume of the HDE was published as charts after World War II.

  13. The ability of 2-deoxyglucose to promote the lysis of Streptococcus bovis JB1 via a mechanism involving cell wall stability.

    PubMed

    Russell, J B; Wells, J E

    1997-11-01

    The non-metabolizable glucose analog, 2-deoxyglucose (2-DG), decreased the growth rate and optical density of Streptococcus bovis JB1 20%, but it had an even greater effect on stationary phase cultures. Control cultures receiving only glucose (2 mg/ml) lysed very slowly (<5% decline in optical density in 48 h), but cultures that had been grown with glucose and 2-DG (2 mg/ml each) lysed much faster (>85% decline in optical density in 48 h). Cultures that were treated with inhibitors that decreased intracellular ATP (sodium fluoride, nigericin, and valinomycin or tetrachlorosalicylanilide) or membrane potential (sodium fluoride, nigericin, and valinomycin, tetrachlorosalicylanilide, or phenylmethylsulfonyl fluoride) did not promote lysis. 2-DG had its greatest effect when it was added at inoculation. If 2-DG was added at later times, less lysis was observed, and cells that were given 2-DG just prior to stationary phase were unaffected. Cells that were grown with glucose and 2-DG were more susceptible to cell wall-degrading enzymes (lysozyme and mutanolysin) than cells that had been grown only with glucose, but sublethal doses of penicillin during growth did not promote lysis after the cells had reached stationary phase. The idea that 2-DG might be affecting autolytic activity was supported by the observation that cultures washed and resuspended in fresh medium with or without 2-DG lysed at a slower rate than cultures that were not centrifuged or were resuspended in the culture supernatant. PMID:9462960

  14. Agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers Local 1650, 1987-1990.

    ERIC Educational Resources Information Center

    Henry Ford Community Coll., Dearborn, MI.

    This collective bargaining agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers establishes conditions of employment for all full-time teachers, counselors, librarians, placement officers, and selected other professional personnel. The articles in the agreement set…

  15. Agreement Between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers, Local 1650, 1973-75.

    ERIC Educational Resources Information Center

    Henry Ford Community Coll., Dearborn, MI.

    This agreement between the Board of Trustees of Henry Ford Community College and the Henry Ford Community College Federation of Teachers, American Federation of Teachers, Local 1650 covers the period of 1973-1975. Contents of the agreement cover recognition, board of trustee rights, union-board relations, conditions of employment, seniority, the…

  16. Expanding (n+1)-dimensional wormhole solutions in Brans-Dicke cosmology

    SciTech Connect

    Ebrahimi, E.; Riazi, N.

    2010-01-15

    We have obtained two classes of (n+1)-dimensional wormhole solutions using a traceless energy-momentum tensor in the Brans-Dicke theory of gravity. The first class contains wormhole solutions in an open geometry, while the second contains wormhole solutions in both open and closed universes. In addition to wormhole geometries, naked singularities and maximally symmetric space-time also appear among the solutions as special cases. We have also considered the traversability of the wormhole solutions and have shown that they are indeed traversable. Finally, we have discussed the energy-momentum tensor which supports this geometry and have checked for the energy conditions. We have found that wormhole solutions in the first class of solutions violate the weak energy condition (WEC). In the second class, the wormhole geometries in a closed universe do violate the WEC, but in an open universe with a suitable choice of constants the supporting matter energy-momentum tensor can satisfy the WEC. However, even in this case the full effective energy-momentum tensor including the scalar field and the matter energy-momentum tensor still violates the WEC.

  17. Health assessment for William Dick Lagoons, Honeybrook, Pennsylvania, Region 3. CERCLIS No. PAD980537773. Preliminary report

    SciTech Connect

    Not Available

    1988-09-30

    The William Dick Lagoon site consists of three unlined lagoons (approximately 2.5 acres total area) which previously contained over four million gallons of rinse water from cleaning chemical tank trailers. In 1970, two of the lagoons breached and released approximately 300,000 gallons of wastewater into the nearby area and a small tributary. Trichloroethylene, toluene, 4,4-DDE, and polynuclear aromatic hydrocarbons have been reported in the soil on the site. Trichloroethylene was detected in a nearby spring, previously used as a water source by a small number of residents. Potential human exposure pathways include ingestion of contaminated water, dermal exposure to contaminated water and soil, and inhalation of contaminated dust and organics in the contaminated groundwater. The site is considered to be of potential public health concern because of the risk to human health caused by the possibility of exposure to hazardous substances. However, it does not appear that a human population is currently exposed to site contaminants at levels of health concern.

  18. Dynamical many-body phases of the parametrically driven, dissipative Dicke model

    NASA Astrophysics Data System (ADS)

    Chitra, R.; Zilberberg, O.

    2015-08-01

    Control and manipulation of quantum engineered systems allows for the utilization of time-dependent parametric modulations for accessing novel out-of-equilibrium phenomena. In the absence of such driving, the dissipative Dicke model exhibits a fascinating out-of-equilibrium many-body phase transition as a function of a coupling between a driven photonic cavity and numerous two-level atoms. We study the effect of a parametric modulation of this coupling and discover a rich phase diagram as a function of the modulation strength. We find that in addition to the established normal and super-radiant phases, a new phase with pulsed superradiance, which we term dynamical normal phase, appears when the system is parametrically driven. Employing different methods, we characterize the different phases and the transitions between them. Specific heed is paid to the role of dissipation in determining the phase boundaries. Our analysis paves the road for the experimental study of dynamically stabilized phases of interacting light and matter.

  19. Brans-Dicke cosmology in 4D from scalar-vacuum in 5D

    NASA Astrophysics Data System (ADS)

    Ponce de Leon, J.

    2010-03-01

    We show that Brans-Dicke (BD) theory in 5D may explain the present cosmic accelerated expansion without recurring to matter fields in 5D or dark energy in 4D. Without making any assumption on the nature of the extra coordinate or the matter content in 5D, here we demonstrate that the vacuum BD field equations in 5D are equivalent, on every hypersurface orthogonal to the extra dimension, to a BD theory in 4D with a self interacting potential and an effective matter field. The potential is not introduced by hand, instead the reduction procedure provides an expression that determines its shape up to a constant of integration. It also establishes the explicit formulae for the effective matter in 4D. In the context of FRW cosmologies, we show that the reduced BD theory gives rise to models for accelerated expansion of a matter-dominated universe which are consistent with current observations and with a decelerating radiation-dominated epoch.

  20. Reversible and irreversible spacetime thermodynamics for general Brans-Dicke theories

    SciTech Connect

    Chirco, Goffredo; Eling, Christopher; Liberati, Stefano

    2011-01-15

    We derive the equations of motion for Palatini F(R) gravity by applying an entropy balance law TdS={delta}Q+{delta}N to the local Rindler wedge that can be constructed at each point of spacetime. Unlike previous results for metric F(R), there is no bulk viscosity term in the irreversible flux {delta}N. Both theories are equivalent to particular cases of Brans-Dicke scalar-tensor gravity. We show that the thermodynamical approach can be used ab initio also for this class of gravitational theories and it is able to provide both the metric and scalar equations of motion. In this case, the presence of an additional scalar degree of freedom and the requirement for it to be dynamical naturally imply a separate contribution from the scalar field to the heat flux {delta}Q. Therefore, the gravitational flux previously associated to a bulk viscosity term in metric F(R) turns out to be actually part of the reversible thermodynamics. Hence we conjecture that only the shear viscosity associated with Hartle-Hawking dissipation should be associated with irreversible thermodynamics.

  1. Economics and feasibility of co-composting solid waste in McHenry County. Final report

    SciTech Connect

    Alpert, J.

    1987-07-01

    The purpose of the study was to evaluate the feasibility of composting various segments of the waste stream produced in McHenry County, IL. In particular, the study emphasized co-composting of municipal solid waste (MSW) with septage, co-composting of MSW with septage and sludge, leaf- and yard-waste composting, and composting various animal wastes. In addition to specific analysis of co-composting in McHenry, the report includes chapters on the technical description and implementation of composting, environmental considerations of co-composting, comparisons of different proprietary systems, the economics of composting, and an analysis of compost markets.

  2. 76 FR 50171 - Notice of Intent To Prepare an Environmental Impact Statement for the Henrys Fork Salinity...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-12

    ... the Henrys Fork Salinity Control Project Plan, Sweetwater and Uinta Counties, WY; Daggett and Summit... Statement (EIS) for the Henrys Fork Salinity Control Project Plan (SCPP). The NRCS will be the lead agency... Improvements'' alternative assumes a salinity control project will be implemented. Existing financial...

  3. Conflict, Retrenchment, and Reappraisal: The Administration of Higher Education. The David D. Henry Lectures, 1972-78.

    ERIC Educational Resources Information Center

    1979

    The first five David D. Henry lectures, and discussion and response to the first four, are presented in this book. Following a brief introduction by John E. Corbally and a biography of David Dobbs Henry, Clark Kerr's paper, "The Administration of Higher Education in an Era of Change and Conflict" (presented in October, 1972) focuses on change and…

  4. Henry`s law gas-solid chromatography and correlations of virial coefficients for hydrocarbons, chlorofluorocarbons, ethers, and sulfur hexafluoride adsorbed onto carbon

    SciTech Connect

    Rybolt, T.R.; Epperson, M.T.; Weaver, H.W.; Thomas, H.E.; Clare, S.E.; Manning, B.M.; McClung, J.T.

    1995-07-01

    Gas-solid chromatography was used to determine the Henry`s law second gas-solid virial coefficients within the temperature range of 314--615 K for ethane, propane, butane, isobutane, pentane, hexane, heptane, chloromethane, dichloromethane, trichloromethane, tetrachloromethane, trichlorofluoromethane (Freon 11), chlorodifluoromethane (Freon 22), dichlorodifluoromethane (Freon 12), methyl ether, ethyl ether, and sulfur hexafluoride with Carbopack B, a microporous carbon adsorbent. The temperature dependence of the second gas-solid virial coefficients of these adsorbates was used in conjunction with analyses based on a graphical method, a single-surface numeric integration method, a single-surface analytic expression method, and a two-surface analytic expression method to determine the gas-solid interaction energies and other parameters. The interaction energies were correlated with a ratio of the critical temperature divided by the square root of the critical pressure. The four methods were compared in their abilities to successfully calculate second gas-solid virial coefficient values.

  5. Cr(VI) induces mitochondrial-mediated and caspase-dependent apoptosis through reactive oxygen species-mediated p53 activation in JB6 Cl41 cells

    SciTech Connect

    Son, Young-Ok; Hitron, J. Andrew; Wang Xin; Chang Qingshan; Pan Jingju; Zhang Zhuo; Liu Jiankang; Wang Shuxia; Lee, Jeong-Chae; Shi Xianglin

    2010-06-01

    Cr(VI) compounds are known to cause serious toxic and carcinogenic effects. Cr(VI) exposure can lead to a severe damage to the skin, but the mechanisms involved in the Cr(VI)-mediated toxicity in the skin are unclear. The present study examined whether Cr(VI) induces cell death by apoptosis or necrosis using mouse skin epidermal cell line, JB6 Cl41 cells. We also investigated the cellular mechanisms of Cr(VI)-induced cell death. This study showed that Cr(VI) induced apoptotic cell death in a dose-dependent manner, as demonstrated by the appearance of cell shrinkage, the migration of cells into the sub-G1 phase, the increase of Annexin V positively stained cells, and the formation of nuclear DNA ladders. Cr(VI) treatment resulted in the increases of mitochondrial membrane depolarization and caspases activation. Electron spin resonance (ESR) and fluorescence analysis revealed that Cr(VI) increased intracellular levels of reactive oxygen species (ROS) such as hydrogen peroxide and superoxide anion radical in dose-dependent manner. Blockage of p53 by si-RNA transfection suppressed mitochondrial changes of Bcl-2 family composition, mitochondrial membrane depolarization, caspase activation and PARP cleavage, leading to the inhibition of Cr(VI)-induced apoptosis. Further, catalase treatment prevented p53 phosphorylation stimulated by Cr(VI) with the concomitant inhibition of caspase activation. These results suggest that Cr(VI) induced a mitochondrial-mediated and caspase-dependent apoptosis in skin epidermal cells through activation of p53, which are mainly mediated by reactive oxidants generated by the chemical.

  6. The Imaginary World of Henri Rousseau. Teacher's Guide. School Arts: Looking/Learning.

    ERIC Educational Resources Information Center

    Henderson, Anne

    While Henri Rousseau's work was not easily classified into any definitive artistic style of the time--impressionism, post-impressionism, fauvism, or cubism--it has been considered a forerunner of surrealism because of its dreamlike sensibility. This teaching guide provides information about Rousseau and his work, focusing on "Tropical Forest with…

  7. Henry David Thoreau, Martin Luther King Jr., and the American Tradition of Protest.

    ERIC Educational Resources Information Center

    Powell, Brent

    1995-01-01

    Maintains that Henry David Thoreau and Martin Luther King, Jr. fundamentally altered the tradition of protest and reform. Compares and contrasts the role of each man in U.S. social and constitutional history. Concludes that while Thoreau lacked the broad influence of King, his writings influenced both King and Mohandas Gandhi. (CFR)

  8. James McHenry: Soldier-Statesmen of the Constitution. A Bicentennial Series, No. 4.

    ERIC Educational Resources Information Center

    Army Center of Military History, Washington, DC.

    Less than five years after his first landing in the American colonies, James McHenry, a well-education Scots-Irish immigrant, was serving with the Continental Army outside Boston (Massachusetts), and his military experience led him into a lengthy career of public service where he forcefully and consistently upheld the ideal of a strong central…

  9. Development of a Career Student Guide for the Tech Prep Program for Henry County High School.

    ERIC Educational Resources Information Center

    Winchester, Ruth Ann

    This practicum report describes the research conducted in preparation for developing a career student guide to acquaint students attending Henry County High School (HCHS) in McDonough, Georgia, with the school's new tech prep program. Chapters 1 and 2 contain background information about HCHS' tech prep program and a review of literature regarding…

  10. Community Arts Programs: Cohesion and Difference Case Studies. Henry Street Settlement and El Museo del Barrio

    ERIC Educational Resources Information Center

    Kiebert-Gruen, Cathleen

    2009-01-01

    A comparative case study of two cultural institutions, Henry Street Settlement and El Museo del Barrio, founded almost eighty years apart, were involved in social justice causes and community arts. Although both of these institutions participated in the political activism of their time, they also demonstrated an important adaptability. They were…

  11. From Romantic Idealism to Enlightenment Rationalism: Lucretia Coffin Mott Responds to Richard Henry Dana, Sr.

    ERIC Educational Resources Information Center

    Sillars, Malcolm O.

    1995-01-01

    Suggests that the contrast between speeches by Richard Henry Dana Sr. and Lucretia Coffin Mott lies not only in their two views of the woman's place and role in society but also in the respective orientation toward Romantic idealism and Enlightenment rationalism. (TB)

  12. Fin-de-Siecle Advances in Neuroeducation: Henry Herbert Donaldson and Reuben Post Halleck

    ERIC Educational Resources Information Center

    Theodoridou, Zoe D.; Triarhou, Lazaros C.

    2009-01-01

    This article focuses on two early attempts at bridging neuroscience and education, made by Henry Herbert Donaldson (1857-1938), a neurologist, and Reuben Post Halleck (1859-1936), an educator. Their works, respectively entitled "The Growth of the Brain: A Study of the Nervous System in Relation to Education" (1895) and "The Education of the…

  13. Henri Matisse: Color and Light. Teacher's Guide. School Arts: Looking/Learning.

    ERIC Educational Resources Information Center

    Brenner, Carla

    Henri Matisse painted "Open Window, Collioure" in the summer of 1905, when he and Andre Derain worked together in Collioure (France), a small Mediterranean fishing port near the Spanish border. This teaching guide discusses the painting "Open Window, Collioure" and Matisse's use of light and vibrant color. The guide provides information on…

  14. 75 FR 28068 - Christopher Henry Lister, P.A.; Revocation of Registration

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-19

    ... factors are * * * considered in the disjunctive.'' Robert A. Leslie, M.D., 68 FR 15227, 15230 (2003). I... requirement for holding a registration under the CSA. See, e.g., John B. Freitas, 74 FR 17524, 17525 (2009... Enforcement Administration Christopher Henry Lister, P.A.; Revocation of Registration On November 3, 2009,...

  15. Movement, Memory and Mathematics: Henri Bergson and the Ontology of Learning

    ERIC Educational Resources Information Center

    de Freitas, Elizabeth; Ferrara, Francesca

    2015-01-01

    Using the work of philosopher Henri Bergson (1859-1941) to examine the nature of movement and memory, this article contributes to recent research on the role of the body in learning mathematics. Our aim in this paper is to introduce the ideas of Bergson and to show how these ideas shed light on mathematics classroom activity. Bergson's monist…

  16. Henry Evelyn Bliss--The Other Immortal, or a Prophet without Honour?

    ERIC Educational Resources Information Center

    Broughton, Vanda

    2008-01-01

    The paper takes a retrospective look at the work of Henry Evelyn Bliss, classificationist theorist and author of the "Bibliographic Classification". Major features of his writings and philosophy are examined and evaluated for the originality of their contribution to the corpus of knowledge in the discipline. Reactions to Bliss's work are analysed,…

  17. An examination of Shneidman's application of Henry Murray's classification of needs to suicidal individuals.

    PubMed

    Lester, D

    1998-08-01

    30 suicidal deaths were examined for the presence of needs described by Henry Murray. The most common needs identified were harmavoidance and infavoidance. Other needs were present rarely and typically only in unusual suicides such as double suicides or seppuku. PMID:9760622

  18. BUBBLE STRIPPING TO DETERMINE HYDROGEN CONCENTRATIONS IN GROUND WATER: A PRACTICAL APPLICATION OF HENRY'S LAW

    EPA Science Inventory

    The Bubble Stripping Method is a chemical testing method that operates on the principle of Henry's Law. It is useful for determining concentrations of hydrogen in well water, and it is capable of detecting concentrations on the order of nanomoles per liter. The method provides ...

  19. Assessing the Teaching and Student Learning Outcomes of the Katz/Henry Faculty Development Model.

    ERIC Educational Resources Information Center

    Finkelstein, Martin

    The impact of the Katz/Henry Faculty Development Model on teaching behaviors and student learning outcomes was assessed with 24 faculty members at 4 institutions in New Jersey. This model, known as "Partners in Learning" involved: faculty pairs who observe one another's class, partner meetings to discuss shared experience in the classroom, several…

  20. A new understanding of the first electromagnetic machine: Joseph Henry's vibrating motor

    NASA Astrophysics Data System (ADS)

    Littman, Michael G.; Stern, Lucas E.

    2011-02-01

    In 1831, Henry invented a battery-powered rocking-beam motor that he later described as the first electromagnetic machine. He repeatedly modified the design over his career, but only one version of a motor actually constructed by Henry is known to exist. This version is in a collection of Henry instruments at Princeton University. We found that the Princeton motor cannot have operated in the form that was displayed as early as 1884. We found evidence in several historical documents and in the instrument itself that the field magnet shown with the motor is a mistake. Instead of a single horizontal bar magnet, the motor was designed to use two elliptical magnets. We presume the error was made by whoever assembled the first public display. We modeled the dynamics of Henry's vibrating motor and compared our results to the operation of a replica motor. Modeling provides insight into how the motor is able to vibrate indefinitely even in the presence of energy loss due to friction.

  1. Fort McHenry National Monument and Historic Shrine. Teacher's Guide.

    ERIC Educational Resources Information Center

    Rogers, Jim

    This teacher's guide explores Fort McHenry and the British attack on Baltimore Harbor (Maryland) in 1814. The guide contains 11 lessons: (1) "Where in the World Is Baltimore?" (no handout-use classroom resources); (2) "Why Baltimore?" (Handout-Why Baltimore?); (3) "Now Where Do We Place the Fort?" (Handout-Map of Patapsco River/Baltimore Harbor);…

  2. "Once More unto the Breach, Dear Friends": Shakespeare's "Henry V" as a Primer for Leaders.

    ERIC Educational Resources Information Center

    McCombs, Gillian M.

    1992-01-01

    The qualities of strong leadership and their applications in library administration are discussed in terms of Shakespeare's "Henry V." It is argued that, unlike the checklists found in management literature, timeless classic texts embody leadership qualities, dynamically illustrating their relevance and applicability. (10 references) (EA)

  3. The Rhetoric of Bishop Henry McNeal Turner, Renowned Speaker and Journalist.

    ERIC Educational Resources Information Center

    Cummings, Melbourne S.

    Bishop Henry McNeal Turner, a journalist and speaker, headed a back-to-Africa movement in the second half of the nineteenth century that was one of the first black rhetorical movements to meet the challenges of institutionalized racism in the United States. Turner was a preacher in the African Methodist Episcopal Church, becoming first an elder…

  4. Highly enantioselective Henry reactions of aromatic aldehydes catalyzed by an amino alcohol-copper(II) complex.

    PubMed

    Qin, Dan-Dan; Lai, Wen-Han; Hu, Di; Chen, Zheng; Wu, An-An; Ruan, Yuan-Ping; Zhou, Zhao-Hui; Chen, Hong-Bin

    2012-08-20

    Amino alcohol-Cu(II) catalyst: Highly enantioselective Henry reactions between aromatic aldehydes and nitromethane have been developed. The reactions were catalyzed by an easily available and operationally simple amino alcohol-copper(II) catalyst. In total, 38 substrates were tested and the R-configured products were obtained in good yields with excellent enantioselectivities. PMID:22791567

  5. On New Rhetoric, John Henry Newman and the Language of Metaphors: Implications for Branding Higher Education

    ERIC Educational Resources Information Center

    Lawler-Brunner, Jennifer Lynne

    2012-01-01

    This project interprets how John Henry Newman's (1801-1890) system of thought informs the philosophical and theoretical grounds for rhetorical praxis in the marketplace. His seminal lessons in "An Essay in Aid of a Grammar of Assent" (1870) and "The Idea of a University" (1873 ed.) demonstrate the metaphoric power of words…

  6. Effective Henry's Law constant measurements for glyoxal in model aerosols containing sulfate

    NASA Astrophysics Data System (ADS)

    Kampf, C.; Waxman, E.; Slowik, J.; Dommen, J.; Prevot, A.; Baltensperger, U.; Noziere, B.; Hoffmann, T.; Volkamer, R.

    2012-04-01

    Traditional models represent secondary organic aerosol (SOA) formation based on the gas-phase oxidation of a limited set of precursor molecules. However, these models tend to under-estimate the amounts and degree of oxygenation of actual SOA, indicating missing processes. One such source that has become increasingly important in recent years is glyoxal (CHOCHO, the smallest alpha-dicarbonyl). Unlike traditional SOA precursors, glyoxal forms SOA by partitioning to the aqueous phase according to Henry's Law. This work presents an analysis of Henry's Law constants for glyoxal uptake to laboratory-generated aerosols in a dynamically coupled gas-aerosol system. We combine CU LED-CE-DOAS measurements of gas-phase glyoxal with online HR-Tof-AMS and time-resolved HPLC ESI MS/MS particle-phase measurements to characterize the time resolved evolution of glyoxal partitioning, and relate molecular-specific measurements to AMS mass spectra. The experiments were performed in the simulation chamber facility at PSI, Switzerland, and investigate ammonium sulfate (AS), and mixed AS / fulvic acid seed aerosols under relative humidity conditions ranging from 50 to 85% RH. The Henry's Law and effective Henry's Law constants are compared with other values reported in the literature.

  7. Effective Henry's Law constant measurements for glyoxal in model aerosols containing sulfate

    NASA Astrophysics Data System (ADS)

    Kampf, C. J.; Waxman, E.; Slowik, J. G.; Dommen, J.; Prevot, A. S.; Noziere, B.; Hoffmann, T.; Volkamer, R.

    2011-12-01

    Traditional models represent secondary organic aerosol (SOA) formation based on the gas-phase oxidation of a limited set of precursor molecules. However, these models tend to under-estimate the amounts and degree of oxygenation of actual SOA, indicating missing processes. One such source that has become increasingly important in recent years is glyoxal (CHOCHO, the smallest alpha-dicarbonyl). Unlike traditional SOA precursors, glyoxal forms SOA by partitioning to the aqueous phase according to Henry's Law. This work presents an analysis of Henry's Law constants for glyoxal uptake to laboratory-generated aerosols in a dynamically coupled gas-aerosol system. We combine CU LED-CE-DOAS measurements of gas-phase glyoxal with online HR-Tof-AMS and time-resolved HPLC ESI MS/MS particle-phase measurements to characterize the time resolved evolution of glyoxal partitioning, and relate molecular-specific measurements to AMS mass spectra. The experiments were performed in the simulation chamber facility at PSI, Switzerland, and investigate ammonium sulfate (AS), and mixed AS / fulvic acid seed aerosols under relative humidity conditions ranging from 50 to 85% RH. The Henry's Law and effective Henry's Law constants are compared with other values reported in the literature.

  8. Visualizing the Life and Legacy of Henry VIII: Guiding Students with Eight Types of Graphic Organizers

    ERIC Educational Resources Information Center

    Gallavan, Nancy P.; Kottler, Ellen

    2010-01-01

    Delving into the life and legacy of Henry VIII is both complex and captivating. People seem compelled to learn more abut his critical contributions and controversial conduct that range from the significant to the scandalous. Reflecting on the history of the world would be incomplete without investigating the events and escapades associated with…

  9. [Portrait of a Confederate secret agent: the dentis Henry A. Parr].

    PubMed

    Hyson, J M; Swanson, B Z

    1998-11-01

    Dr. Henry A. Parr had many aspects in his career, beginning life as secret confederate agent during the Civil War, and finally ending as the president's dentist. The way he played these roles, as a pirate, accused of murder, as a pharmacist, inventor and dental teacher, makes up a real odysey, well documented. PMID:11639043

  10. High School Decision-Making at Henry Lord Middle School in Fall River

    ERIC Educational Resources Information Center

    Bronhard, Aimee A.

    2012-01-01

    The purpose of this qualitative study was to investigate how students at Henry Lord Middle School in Fall River take into consideration their initial college and career aspirations when making their decision for high school. Self-efficacy theory, critical theory, and a literature review related to high school decision-making inform the analysis of…

  11. Henry Giroux and the Politics of Higher Education under George W. Bush: An Interview

    ERIC Educational Resources Information Center

    Pozo, Mike Alexander

    2005-01-01

    In May of 2004 Henry Giroux, a creator of the field of critical pedagogy and a leading advocate for young people, democracy, and education in the United States, reluctantly left Penn State University after twelve years as a Distinguished Professor in the education department. He has been a critic of the corporatization of and conservative…

  12. Nursing Program Associate in Applied Science Degree, Patrick Henry Community College. Evaluation Report.

    ERIC Educational Resources Information Center

    Williams, Jean

    In 1988, a quantitative and qualitative analysis was conducted to determine the effectiveness, quality, and image of Patrick Henry Community College's (PHCC's) nursing program. The study was initiated in response to faculty and administrator concern about the low passing rates of nursing graduates on the state licensing board examination. The…

  13. Neostusakia, a new name for preoccupied Stusakia Kment and Henry, 2008 (Hemiptera: Heteroptera: Berytidae)

    Technology Transfer Automated Retrieval System (TEKTRAN)

    A case of homonymy in the heteropteran family Berytidae is addressed. The genus Stusakia Kment and Henry, 2008 (Hemiptera) is preoccupied by Stusakia Frýda, 1998 (Mollusca: Gastropoda). As a consequence, the replacement name Neostusakia, new name, is proposed. In addition, the only two included s...

  14. Intensive Language Instruction at a Small Liberal Arts College: The Dartmouth Model at Emory & Henry.

    ERIC Educational Resources Information Center

    Byrd, Charles W., Jr.

    1980-01-01

    Describes Emory & Henry College's adoption and succesful use of the Dartmouth method based on attraction of students to program, retention of students, enthusiasm of college community and improved performance of students when compared to proficiency of students in simultaneously taught traditional courses. (Author/BK)

  15. The Heuristic Method, Precursor of Guided Inquiry: Henry Armstrong and British Girls' Schools, 1890-1920

    ERIC Educational Resources Information Center

    Rayner-Canham, Geoff; Rayner-Canham, Marelene

    2015-01-01

    Though guided-inquiry learning, discovery learning, student-centered learning, and problem-based learning are commonly believed to be recent new approaches to the teaching of chemistry, in fact, the concept dates back to the late 19th century. Here, we will show that it was the British chemist, Henry Armstrong, who pioneered this technique,…

  16. Pickering, Edward Charles (1846-1919) and Pickering, William Henry (1858-1938)

    NASA Astrophysics Data System (ADS)

    Murdin, P.

    2000-11-01

    Astronomers—two brothers. Born in Boston, MA, Edward became director of the Harvard College Observatory and observed the brightnesses of 45 000 stars. He hired a number of women, including WILLIAMINA P FLEMING, ANNIE J CANNON, Antonia Maury and HENRIETTA LEAVITT, and produced the Henry Draper Catalog, classifying the spectra of hundreds of thousands of stars. He and HERMANN CARL VOGEL independent...

  17. Mounting a Curricular Revolution: An Interview with Henry Louis Gates, Jr.

    ERIC Educational Resources Information Center

    von Zastrow, Claus

    2009-01-01

    This article presents an interview with Henry Louis Gates, Jr., Harvard professor and cultural critic who has captured 25 million viewers with his PBS documentary series, African American Lives (WNET). Using genealogical research and DNA science, Gates traces the family history of 19 famous African Americans. What results is a rich and moving…

  18. Neoliberalism, Democracy and the University as a Public Sphere: An Interview with Henry A. Giroux

    ERIC Educational Resources Information Center

    Harper, Victoria

    2014-01-01

    "Truthout" contributor, director of "Truthout's" Public Intellectual Project (truth-out.org/public-intellectual-project) and Truthout board member Henry A. Giroux responds to questions about how the excesses of neoliberal politics have reshaped and subverted the democratic mission of higher education.

  19. Control-Structure Ratings on the Fox River at McHenry and Algonquin, Illinois

    USGS Publications Warehouse

    Straub, Timothy D.; Johnson, Gary P.; Hortness, Jon E.; Parker, Joseph R.

    2009-01-01

    The Illinois Department of Natural Resources-Office of Water Resources operates control structures on a reach of the Fox River in northeastern Illinois between McHenry and Algonquin. The structures maintain water levels in the river for flood-control and recreational purposes. This report documents flow ratings for hinged-crest gates, a broad-crested weir, sluice gates, and an ogee spillway on the control structures at McHenry and Algonquin. The ratings were determined by measuring headwater and tailwater stage along with streamflow at a wide range of flows at different gate openings. Standard control-structure rating techniques were used to rate each control structure. The control structures at McHenry consist of a 221-feet(ft)-long broad-crested weir, a 4-ft-wide fish ladder, a 50-ft-wide hinged-crest gate, five 13.75-ft-wide sluice gates, and a navigational lock. Sixty measurements were used to rate the McHenry structures. The control structures at Algonquin consist of a 242-ft-long ogee spillway and a 50-ft-wide hinged-crest gate. Forty-one measurements were used to rate the Algonquin control structures.

  20. Dicke coupling by feasible local measurements at the superradiant quantum phase transition

    NASA Astrophysics Data System (ADS)

    Bina, M.; Amelio, I.; Paris, M. G. A.

    2016-05-01

    We address characterization of many-body superradiant systems and establish a fundamental connection between quantum criticality and the possibility of locally estimating the coupling constant, i.e., extracting its value by probing only a portion of the whole system. In particular, we consider Dicke-like superradiant systems made of an ensemble of two-level atoms interacting with a single-mode radiation field at zero effective temperature, and address estimation of the coupling by measurements performed only on radiation. At first, we obtain analytically the quantum Fisher information (QFI) and show that optimal estimation of the coupling may be achieved by tuning the frequency of the radiation field to drive the system toward criticality. The scaling behavior of the QFI at the critical point is obtained explicitly upon exploiting the symplectic formalism for Gaussian states. We then analyze the performances of feasible detection schemes performed only on the radiation subsystem, namely homodyne detection and photon counting, and show that the corresponding Fisher informations (FIs) approach the global QFI in the critical region. We thus conclude that criticality is a twofold resource. On the one hand, global QFI diverges at the critical point, i.e., the coupling may be estimated with the arbitrary precision. On the other hand, the FIs of feasible local measurements (which are generally smaller than the QFI out of the critical region), show the same scaling of the global QFI; i.e., optimal estimation of coupling may be achieved by locally probing the system, despite its strongly interacting nature.

  1. Dissolved-Solids Load in Henrys Fork Upstream from the Confluence with Antelope Wash, Wyoming, Water Years 1970-2009

    USGS Publications Warehouse

    Foster, Katharine; Kenney, Terry A.

    2010-01-01

    Annual dissolved-solids load at the mouth of Henrys Fork was estimated by using data from U.S. Geological Survey streamflow-gaging station 09229500, Henrys Fork near Manila, Utah. The annual dissolved-solids load for water years 1970-2009 ranged from 18,300 tons in 1977 to 123,300 tons in 1983. Annual streamflows for this period ranged from 14,100 acre-feet in 1977 to 197,500 acre-feet in 1983. The 25-percent trimmed mean dissolved-solids load for water years 1970-2009 was 44,300 tons per year at Henrys Fork near Manila, Utah. Previous simulations using a SPAtially Referenced Regression On Watershed attributes (SPARROW) model for dissolved solids specific to water year 1991 conditions in the Upper Colorado River Basin predicted an annual dissolved-solids load of 25,000 tons for the Henrys Fork Basin upstream from Antelope Wash. On the basis of computed dissolved-solids load data from Henrys Fork near Manila, Utah, together with estimated annual dissolved-solids load from Antelope Wash and Peoples Canal, this prediction was adjusted to 37,200 tons. As determined by simulations with the Upper Colorado River Basin SPARROW model, approximately 56 percent (14,000 tons per year) of the dissolved-solids load at Henrys Fork upstream from Antelope Wash is associated with the 21,500 acres of irrigated agricultural lands in the upper Henrys Fork Basin.

  2. Thermodynamics of topological black holes in Brans-Dicke gravity with a power-law Maxwell field

    NASA Astrophysics Data System (ADS)

    Zangeneh, M. Kord; Dehghani, M. H.; Sheykhi, A.

    2015-11-01

    In this paper, we present a new class of higher-dimensional exact topological black hole solutions of the Brans-Dicke theory in the presence of a power-law Maxwell field as the matter source. For this aim, we introduce a conformal transformation which transforms the Einstein-dilaton-power-law Maxwell gravity Lagrangian to the Brans-Dicke-power-law Maxwell theory one. Then, by using this conformal transformation, we obtain the desired solutions. Next, we study the properties of the solutions and conditions under which we have black holes. Interestingly enough, we show that there is a cosmological horizon in the presence of a negative cosmological constant. Finally, we calculate the temperature and charge and then by calculating the Euclidean action, we obtain the mass, the entropy and the electromagnetic potential energy. We find that the entropy does not respect the area law, and also the conserved and thermodynamic quantities are invariant under conformal transformation. Using these thermodynamic and conserved quantities, we show that the first law of black hole thermodynamics is satisfied on the horizon.

  3. Superradiance, Berry phase, photon phase diffusion, and number squeezed state in the U(1) Dicke (Tavis-Cummings) model

    SciTech Connect

    Ye Jinwu; Zhang Cunlin

    2011-08-15

    Recently, strong-coupling regimes of superconducting qubits or quantum dots inside a microwave circuit cavity and BEC atoms inside an optical cavity were achieved experimentally. The strong-coupling regimes in these systems were described by the Dicke model. Here, we solve the Dicke model by a 1/N expansion. In the normal state, we find a {radical}(N) behavior of the collective Rabi splitting. In the superradiant phase, we identify an important Berry phase term that has dramatic effects on both the ground state and the excitation spectra of the strongly interacting system. The single photon excitation spectrum has a low-energy quantum phase diffusion mode in imaginary time with a large spectral weight and also a high-energy optical mode with a low spectral weight. The photons are in a number squeezed state that may have wide applications in high sensitive measurements and quantum-information processing. Comparisons with exact diagonalization studies are made. Possible experimental schemes to realize the superradiant phase are briefly discussed.

  4. Age of the universe constrained from the primordial nucleosynthesis in the Brans-Dicke theory with a varying cosmological term.

    NASA Astrophysics Data System (ADS)

    Etoh, T.; Hashimoto, M.; Arai, K.; Fujimoto, S.

    1997-09-01

    The age of the universe is investigated from a viewpoint of the primordial nucleosynthesis in the Brans-Dicke model with a varying {LAMBDA} term. It is shown that the age can be long enough compared with that of the globular clusters using two critical quantities recently reported from the HST observations: the Hubble constant, and deuterium abundances. Then it is shown that the present rate of variation in the gravitational ``constant'' can be predicted. From the observational constraint in the primordial nucleosynthesis, the baryon density relative to the critical density is found to be {OMEGA}_b_=0.047-0.14 from the observation by Songaila et al. (1996) and {OMEGA}_b_=0.16-0.22 from that by Tytler et al. (1996), where the critical density is ρ_c_=6.0x10^-30^g/cm^3^ for H_0_=80km/s/Mpc and a parameter characteristic to the Brans-Dicke theory. It is concluded that most of the matter consists of the non-baryonic dark matter if the universe is flat.

  5. 78 FR 34428 - Missouri Central Railroad Company-Abandonment Exemption-in Cass, Henry, Johnson, and Pettis...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-07

    ..., Johnson, and Pettis Counties, MO; Central Midland Railway Company--Discontinuance of Service Exemption--in Cass, Henry, Johnson, and Pettis Counties, MO Missouri Central Railroad Company (MCRR) and...

  6. Henry's law constant for phosphine in seawater: determination and assessment of influencing factors

    NASA Astrophysics Data System (ADS)

    Fu, Mei; Yu, Zhiming; Lu, Guangyuan; Song, Xiuxian

    2013-07-01

    The Henry's Law constant ( k) for phosphine in seawater was determined by multiple phase equilibration combined with headspace gas chromatography. The effects of pH, temperature, and salinity on k were studied. The k value for phosphine in natural seawater was 6.415 at room temperature (approximately 23°C). This value increases with increases in temperature and salinity, but no obvious change was observed at different pH levels. At the same temperature, there was no significant difference between the k for phosphine in natural seawater and that in artificial seawater. This implies that temperature and salinity are major determining factors for k in marine environment. Double linear regression with Henry's Law constants for phosphine as a function of temperature and salinity confirmed our observations. These results provide a basis for the measurement of trace phosphine concentrations in seawater, and will be helpful for future research on the status of phosphine in the oceanic biogeochemical cycle of phosphorus.

  7. DNA-catalyzed Henry reaction in pure water and the striking influence of organic buffer systems.

    PubMed

    Häring, Marleen; Pérez-Madrigal, Maria M; Kühbeck, Dennis; Pettignano, Asja; Quignard, Françoise; Díaz, David Díaz

    2015-01-01

    In this manuscript we report a critical evaluation of the ability of natural DNA to mediate the nitroaldol (Henry) reaction at physiological temperature in pure water. Under these conditions, no background reaction took place (i.e., control experiment without DNA). Both heteroaromatic aldehydes (e.g., 2-pyridinecarboxaldehyde) and aromatic aldehydes bearing strong or moderate electron-withdrawing groups reacted satisfactorily with nitromethane obeying first order kinetics and affording the corresponding β-nitroalcohols in good yields within 24 h. In contrast, aliphatic aldehydes and aromatic aldehydes having electron-donating groups either did not react or were poorly converted. Moreover, we discovered that a number of metal-free organic buffers efficiently promote the Henry reaction when they were used as reaction media without adding external catalysts. This constitutes an important observation because the influence of organic buffers in chemical processes has been traditionally underestimated. PMID:25749682

  8. Observation of Henry's Law in Low-Density Measurements of Adsorption on Carbon Nanotubes

    NASA Astrophysics Data System (ADS)

    Dzyubenko, Boris; Schmitz, Denise; Lee, Hao-Chun; Vilches, Oscar E.; Cobden, David H.

    2014-03-01

    We have studied the adsorption of noble gases on pristine suspended single-walled carbon nanotubes at low temperatures in the limit of low density (coverage), as determined from the shift of the mechanical resonance frequency of the nanotube due to mass loading. The high homogeneity of the nanotube substrate and the sensitivity of the technique allow us to observe Henry's law, in which the coverage is proportional to the gas pressure. In this limit the adsorption isotherm is determined by single-atom effects, allowing unprecedentedly accurate (+/- 2%) determination of the single-particle binding energies to a nanotube. Also, by measuring the deviation from Henry's law as coverage increases we obtain information about the pairwise interactions between the adsorbed atoms using the virial expansion.

  9. Keratin Protein-Catalyzed Nitroaldol (Henry) Reaction and Comparison with Other Biopolymers.

    PubMed

    Häring, Marleen; Pettignano, Asja; Quignard, Françoise; Tanchoux, Nathalie; Díaz Díaz, David

    2016-01-01

    Here we describe a preliminary investigation on the ability of natural keratin to catalyze the nitroaldol (Henry) reaction between aldehydes and nitroalkanes. Both aromatic and heteroaromatic aldehydes bearing strong or moderate electron-withdrawing groups were converted into the corresponding β-nitroalcohol products in both DMSO and in water in the presence of tetrabutylammonium bromide (TBAB) as a phase transfer catalyst. Negligible background reactions (i.e., negative control experiment in the absence of keratin protein) were observed in these solvent systems. Aromatic aldehydes bearing electron-donating groups and aliphatic aldehydes showed poor or no conversion, respectively. In general, the reactions in water/TBAB required twice the amount of time than in DMSO to achieve similar conversions. Moreover, comparison of the kinetics of the keratin-mediated nitroaldol (Henry) reaction with other biopolymers revealed slower rates for the former and the possibility of fine-tuning the kinetics by appropriate selection of the biopolymer and solvent. PMID:27571051

  10. William Henry Welch (1850–1934): the road to Johns Hopkins

    PubMed Central

    2011-01-01

    William Henry Welch's selection in 1884 as the first faculty member of the new medical school at Johns Hopkins created the invigorating atmosphere that generated the revolutionary changes in medical training and laboratory medicine that transformed medicine in America. Dr. Welch's family traditions, his New England upbringing, Yale education, and German university experience prepared a unique individual to lead American medicine into the 20th century. PMID:21738298

  11. Total Synthesis of Anti-Influenza Agents Zanamivir and Zanaphosphor via Asymmetric Aza-Henry Reaction.

    PubMed

    Lin, Long-Zhi; Fang, Jim-Min

    2016-09-01

    The potent anti-influenza agents, zanamivir and its phosphonate congener, are synthesized by using a nitro group as the latent amino group at C4 for asymmetric aza-Henry reaction with a chiral sulfinylimine, which is derived from inexpensive d-glucono-δ-lactone to establish the essential nitrogen-containing substituent at C5. This method provides an efficient way to construct the densely substituted dihydropyran core of zanamivir and zanaphosphor without using the hazardous azide reagent. PMID:27541804

  12. Speculative Truth - Henry Cavendish, Natural Philosophy, and the Rise of Modern Theoretical Science

    NASA Astrophysics Data System (ADS)

    McCormmach, Russell

    2004-03-01

    With a never-before published paper by Lord Henry Cavendish, as well as a biography on him, this book offers a fascinating discourse on the rise of scientific attitudes and ways of knowing. A pioneering British physicist in the late 18th and early 19th centuries, Cavendish was widely considered to be the first full-time scientist in the modern sense. Through the lens of this unique thinker and writer, this book is about the birth of modern science.

  13. William Henry Welch (1850-1934): the road to Johns Hopkins.

    PubMed

    Silverman, Barry D

    2011-07-01

    William Henry Welch's selection in 1884 as the first faculty member of the new medical school at Johns Hopkins created the invigorating atmosphere that generated the revolutionary changes in medical training and laboratory medicine that transformed medicine in America. Dr. Welch's family traditions, his New England upbringing, Yale education, and German university experience prepared a unique individual to lead American medicine into the 20th century. PMID:21738298

  14. Documentation for the machine-readable version of the Henry Draper Catalogue (edition 1985)

    NASA Technical Reports Server (NTRS)

    Roman, N. G.; Warren, W. H., Jr.

    1985-01-01

    An updated, corrected and extended machine-readable version of the catalog is described. Published and unpublished errors discovered in the previous version was corrected; letters indicating supplemental stars in the BD have been moved to a new byte to distinguish them from double-star components; and the machine readable portion of The Henry Draper Extension (HDE) (HA 100) was converted to the same format as the main catalog, with additional data added as necessary.

  15. Mineral resources of the Henry's Lake Wilderness Study Area, Fremont County, Idaho

    SciTech Connect

    Tysdal, R.G. ); Peters, T.J. )

    1988-01-01

    The authors report on the 350-acre Henry's Lake Wilderness Study Area in the southern part of the Madison Range. Fremont County, Idaho, and is about 17 miles north of the hamlet of Islan Park. The southwestern part of the wilderness study area, along the Madison Range Fault, is rated as having a moderate energy resource potential for geothermal water, and the remainder of the study area has a low potential for this resource.

  16. A Century of Chemical Dynamics Traced through the Nobel Prizes. 1983: Henry Taube

    NASA Astrophysics Data System (ADS)

    van Houten, J.

    2002-07-01

    The 1983 Nobel Prize was awarded to Henry Taube for his work on the mechanisms of electron transfer reactions, especially in metal complexes. Taube's work represents a watershed in the development of the mechanistic chemistry of inorganic transition metal complexes. His studies of those reactions is a central feature in courses in mechanistic inorganic chemistry, and his description of inner-sphere and outer-sphere electron transfer mechanisms remain as the textbook examples.

  17. John Henry Active Coping, education, and blood pressure among urban blacks.

    PubMed Central

    Fernander, Anita F.; Durán, Ron E. F.; Saab, Patrice G.; Schneiderman, Neil

    2004-01-01

    The John Henryism hypothesis posits that individuals who actively cope with psychosocial stressors in the face of low socioeconomic resources are more likely to exhibit higher blood pressure levels than those with greater socioeconomic resources. It has been proposed that John Henryism may contribute to the disproportionately high rates of hypertension among blacks. Previous studies which support the John Henryism hypothesis have been conducted among blacks who reside in primarily southern rural settings. However, more recent studies conducted among urban blacks, have yielded contrasting results. This study examined the John Henryism hypothesis in a middle-aged urban sample of blacks in south Florida. The results of the study confirmed that there is indeed a relationship among John Henry Active Coping, years of education, and blood pressure among urban blacks in south Florida. Upon closer examination, higher John Henry Active Coping scores were associated with higher systolic and diastolic blood pressure among higher educated men, and John Henry Active Coping scores were associated with higher systolic and diastolic blood pressure among women with lower levels of education. The findings are discussed in terms of sociocultural factors that may influence the coping styles of black men and women in different communities and environments. PMID:14977286

  18. The last ride of Henry II of France: orbital injury and a king's demise.

    PubMed

    Eftekhari, Kian; Choe, Christina H; Vagefi, M Reza; Eckstein, Lauren A

    2015-01-01

    Jousting was a popular pastime for royalty in the Renaissance era. Injuries were common, and the eye was particularly at risk from the splinters of the wooden lance. On June 30, 1559, Henry II of France participated in a jousting tournament to celebrate two royal weddings. In the third match, Gabriel de Montgomery struck Henry on the right shoulder and the lance splintered, sending wooden shards into his face and right orbit. Despite being cared for by the prominent physicians Ambroise Paré and Andreas Vesalius, the king died 10 days later and was found to have a cerebral abscess. The wound was not explored immediately after the injury; nevertheless, wooden foreign bodies were discovered in the orbit at the time of autopsy. The dura had not been violated, suggesting that an infection may have traveled from the orbit into the brain. Nostradamus and Luca Guarico, the astrologer to the Medici family, had prophesied the death of Henry II of France, but he ignored their warnings and thus changed the course of history in Renaissance Europe. PMID:25890627

  19. Intermediate accelerated solutions as generic late-time attractors in a modified Jordan-Brans-Dicke theory

    NASA Astrophysics Data System (ADS)

    Cid, Antonella; Leon, Genly; Leyva, Yoelsy

    2016-02-01

    In this paper we investigate the evolution of a Jordan-Brans-Dicke scalar field, Φ, with a power-law potential in the presence of a second scalar field, phi, with an exponential potential, in both the Jordan and the Einstein frames. We present the relation of our model with the induced gravity model with power-law potential and the integrability of this kind of models is discussed when the quintessence field phi is massless, and has a small velocity. The fact that for some fine-tuned values of the parameters we may get some integrable cosmological models, makes our choice of potentials very interesting. We prove that in Jordan-Brans-Dicke theory, the de Sitter solution is not a natural attractor. Instead, we show that the attractor in the Jordan frame corresponds to an ``intermediate accelerated'' solution of the form a(t) simeq eα1 tp1, as t → ∞ where α1 > 0 and 0 < p1 < 1, for a wide range of parameters. Furthermore, when we work in the Einstein frame we get that the attractor is also an ``intermediate accelerated'' solution of the form fraktur a(fraktur t) simeq eα2 fraktur tp2 as fraktur t → ∞ where α2 > 0 and 0

  20. The Complete Friedman Cosmology with Barotropic Fluids for the Brans-Dicke Theory

    NASA Astrophysics Data System (ADS)

    Chauvet-Alducin, P.

    2002-12-01

    The different ways in which an homogeneous and isotropic Universe in the form of a barotropic fluid expands in the cosmological theory of Brans-Dicke [1] can be completly rendered, even if the space is not flat, almost only for the special stress-energy tensor that represents incoherent radiation or ultrarelativistic matter because the original, and well known, nonlinear field equations comprise two unknowns which makes their integration difficult, and more so when the space is non-flat, in contrast with the General Relativity case which only has a single unknown function to determine -the scale factor-. Therefore, a fruitful avenue that can be used to obtain cosmological solutions for this, and other scalar-tensor theories, originally developed in Chauvet [2], and extended elsewhere [3] has been to procure equations for a single variable by combining the two aforementioned functions into a single one. So far this, and other methods to obtain perfect fluid, analytic solutions for a non-flat space, have given the sought after, and complete results, mostly for the vacuum, incoherent radiation, and stiff "matter" cases in this, and in similar but more general scalar-tensor theories [4]. A salient fact for a non-flat space is that radiation, and the remaining fluids as well, can expand linearly in time which is the limit for accelerating universes that, nowadays, turn out to be significant [5]. This expansion comes about as the end product of the special form that the composite function assumes: a second degree polynomial whose discriminant is equal to zero, which then permits a time inversion onto "cosmic time" which translates into a common behavior for the non-flat FRW models, and is moreover the general cosmic solution to the flat space [6]. For the polynomial function different fluids, and different spaces as well, are distinguished essentially by the three constant factors some of which depend on the equation of state through n, and the coupling parameter

  1. Superfund record of decision (EPA Region 3): William Dick Lagoons, West Caln Township, Chester County, PA, March 1993

    SciTech Connect

    Not Available

    1993-03-31

    This decision document presents the selected remedial action for Operable Unit 3 of the William Dick Lagoons Site (Site), in West Caln Township, Pennsylvania. The remedy described in this Record of Decision is for Operable Unit 3 at the Site. The remedy selected for Operable Unit 3 will reduce the concentrations of hazardous substances in the Site soils so that leaching of contaminants into the groundwater will be minimized. Reduction of the volatile organic compounds and semi-volatile organic compounds in the soils is necessary in order the groundwater will not continue to be impacted above acceptable levels. In addition, the installation of a vegetative soil cover or multi-layer cap will prevent the surrounding community from exposure to Site-related contaminants through inhalation, ingestion, and dermal contact.

  2. Fano-Agarwal couplings and non-rotating wave approximation in single-photon timed Dicke subradiance

    NASA Astrophysics Data System (ADS)

    Mirza, Imran M.; Begzjav, Tuguldur

    2016-04-01

    Recently a new class of single-photon timed Dicke (TD) subradiant states has been introduced with possible applications in single-photon–based quantum information storage and on demand ultrafast retrieval (Scully M. O., Phys. Rev. Lett., 115 (2015) 243602). However, the influence of any kind of virtual processes on the decay of these new kind of subradiant states has been left as an open question. In the present paper, we focus on this problem in detail. In particular, we investigate how pure Fano-Agarwal couplings and other virtual processes arising from non-rotating wave approximation impact the decay of otherwise sub- and superradiant states. In addition to the overall virtual couplings among all TD states, we also focus on the dominant role played by the couplings between specific TD states.

  3. Collapse and revival of a Dicke-type coherent narrowing in a sub-micron thick vapor cell transmission spectroscopy

    NASA Astrophysics Data System (ADS)

    Dutier, G.; Yarovitski, A.; Saltiel, S.; Papoyan, A.; Sarkisyan, D.; Bloch, D.; Ducloy, M.

    2003-07-01

    In a thin cell of dilute vapour, the absorption spectrum exhibits sub-Doppler features due to the relative enhancement of the slow atom contribution, with respect to the transient nature of the interaction with moving atoms. For a two-level system in the linear regime, the narrowest response is predicted to be found for a λ/2 thickness, as an effect of the coherent character of the dipole response as early described by Romer and Dicke (Phys. Rev., 99 (1955) 532) in the microwave regime. We report here on the direct observation of this effect in the optical regime in an ultra-thin vapour cell. This effect is shown to vanish for a thickness equal to λ, and a revival is observed at 3λ/2, as expected from the predicted λ-periodicity. The experiment is performed on the D1 resonance line of Cs vapour (λ = 894 nm), in a specially designed cell, whose thickness varies locally.

  4. Three Averaging Techniques for Reduction of Antenna Temperature Variance Measured by a Dicke Mode, C-Band Radiometer

    NASA Technical Reports Server (NTRS)

    Mackenzie, Anne I.; Lawrence, Roland W.

    2000-01-01

    As new radiometer technologies provide the possibility of greatly improved spatial resolution, their performance must also be evaluated in terms of expected sensitivity and absolute accuracy. As aperture size increases, the sensitivity of a Dicke mode radiometer can be maintained or improved by application of any or all of three digital averaging techniques: antenna data averaging with a greater than 50% antenna duty cycle, reference data averaging, and gain averaging. An experimental, noise-injection, benchtop radiometer at C-band showed a 68.5% reduction in Delta-T after all three averaging methods had been applied simultaneously. For any one antenna integration time, the optimum 34.8% reduction in Delta-T was realized by using an 83.3% antenna/reference duty cycle.

  5. On the relationship between the classical Dicke-Jaynes-Cummings-Gaudin model and the nonlinear Schroedinger equation

    SciTech Connect

    Du, Dianlou; Geng, Xue

    2013-05-15

    In this paper, the relationship between the classical Dicke-Jaynes-Cummings-Gaudin (DJCG) model and the nonlinear Schroedinger (NLS) equation is studied. It is shown that the classical DJCG model is equivalent to a stationary NLS equation. Moreover, the standard NLS equation can be solved by the classical DJCG model and a suitably chosen higher order flow. Further, it is also shown that classical DJCG model can be transformed into the classical Gaudin spin model in an external magnetic field through a deformation of Lax matrix. Finally, the separated variables are constructed on the common level sets of Casimir functions and the generalized action-angle coordinates are introduced via the Hamilton-Jacobi equation.

  6. Henri Wallon's Theory of Early Child Development: The Role of Emotions

    PubMed

    Veer

    1996-12-01

    The present paper gives an account of part of the stage theory of early child development of the French theorist Henri Wallon (1879-1962). Unlike his contemporary Jean Piaget, Wallon concentrated his efforts upon a description of the child's emotional development and the role emotions play in establishing the bond between child and caregiver. The description of Wallon's stage theory is preceded by biographical information and a presentation of his methodological views. It is argued that Wallon's theory is unique in its focus, exerted influence upon theorists such as Lev Vygotsky, and is basically compatible with modern insights about the nature of child development and the growth of intersubjectivity. PMID:8979855

  7. Ground-water aspects of the lower Henrys Fork region, Idaho

    USGS Publications Warehouse

    Crosthwaite, E.J.; Mundorff, M.J.; Walker, E.H.

    1967-01-01

    The lower Henrys Fork region includes the plains and low benches between Ashton and the junction of Henrys Fork and Snake River in eastern Idaho. The northwestern and western parts of the area are part of the Snake River lava plain. The central part of the area is occupied by alluvial plains of the Snake, Teton, and Falls Rivers, and Henrys Fork. The southeastern part of the area is a bench (Rexburg Bench), chiefly on silicic and basaltic volcanic rocks, which rises gradually to mountain peaks southeast of the area. The basalt, and the sand and gravel under the alluvial plains are good aquifers and yield large amounts of water with small drawdowns. The silicic volcanic rocks and the interbedded ash, pyroclastics, and sedimentary deposits generally yield much less water than the basalt and alluvium. The regional water table slopes southward beneath the basalt and alluvial plains. Seepage from stream channels and irrigated tracts has resulted in an extensive body of ground water perched above the regional water table. The perched water in part moves vertically down to the regional water table and in part laterally to the streams. Ground water beneath the Rexburg Bench moves generally northwestward to join the regional ground-water body beneath the alluvial plain. The regional water table is below the level of the streams in the area and ground water in the main aquifer, therefore is not tributary to the streams. Recharge to the regional water table is estimated to average 725,000 acre-feet annually. Pumping from the regional ground-water reservoir for irrigation or other uses would have no effect on streamflow or surface-water rights within the study area. However, depletion of the underflow would eventually reduce the inflow to American Falls Reservoir unless the depletion was offset by additional recharge. Total withdrawals of ground water for irrigation in 1962 were estimated to be 25,000 acre-feet and caused no significant decline in the water table. In the

  8. A new revision of the Hdec (Henry Draper Extension Charts) catalog

    NASA Astrophysics Data System (ADS)

    Ashimbaeva, N.; Sementsov, V.

    A new version of the HDEC (Henry Draper Extension Charts) catalog is presented. The catalog includes 88,548 entries, more than 3500 of which (components of binary systems) were earlier corrupted by an algorithmic error (1579 multiple systems were revealed). Spectral classification of these objects has been corrected manually using the CDS data. We also corrected some mistakes of the catalog detected by the measurement model and cross-matching with other CDS catalogs, and, in some cases, by the authors of the catalog and through collaboration of the HDEC users.

  9. The Henry Cecil Ranson McBay Chair in Space Science

    NASA Technical Reports Server (NTRS)

    Bota, Kofi B.; King, James, Jr.

    1999-01-01

    The goals and objectives of the Henry Cecil Ransom McBay Chair in Space Sciences were to: (1) provide leadership in developing and expanding Space Science curriculum; (2) contribute to the research and education endeavors of NASA's Mission to Planet Earth program; (3) expand opportunities for education and hands-on research in Space and Earth Sciences; (4) enhance scientific and technological literacy at all educational levels and to increase awareness of opportunities in the Space Sciences; and (5) develop a pipeline, starting with high school, of African American students who will develop into a cadre of well-trained scientists with interest in Space Science Research and Development.

  10. Influence of counter-rotating interaction on quantum phase transition in Dicke-Hubbard lattice: an extended coherent-state approach

    NASA Astrophysics Data System (ADS)

    Lu, Yongchuan; Wang, Chen

    2016-07-01

    We investigate the ground-state behavior of the Dicke-Hubbard model including counter-rotating terms. By generalizing an extended coherent-state approach within mean-field theory, we self-consistently obtain the ground-state energy and delocalized order parameter. Localization-delocalization quantum phase transition of photons is clearly observed by breaking the parity symmetry. Particularly, Mott lobes are fully suppressed, and the delocalized order parameter shows monotonic enhancement by increasing qubit-cavity coupling strength, in sharp contrast to the Dicke-Hubbard model under rotating-wave approximation. Moreover, the corresponding phase boundaries are stabilized by decreasing photon hopping strength, compared to the Rabi-Hubbard model.

  11. General integrable n-level, many-mode Janes-Cummings-Dicke models and classical r-matrices with spectral parameters

    SciTech Connect

    Skrypnyk, T. E-mail: tskrypnyk@imath.kiev.ua

    2015-02-15

    Using the technique of classical r-matrices and quantum Lax operators, we construct the most general form of the quantum integrable “n-level, many-mode” spin-boson Jaynes-Cummings-Dicke-type hamiltonians describing an interaction of a molecule of N n-level atoms with many modes of electromagnetic field and containing, in general, additional non-linear interaction terms. We explicitly obtain the corresponding quantum Lax operators and spin-boson analogs of the generalized Gaudin hamiltonians and prove their quantum commutativity. We investigate symmetries of the obtained models that are associated with the geometric symmetries of the classical r-matrices and construct the corresponding algebra of quantum integrals. We consider in detail three classes of non-skew-symmetric classical r-matrices with spectral parameters and explicitly obtain the corresponding quantum Lax operators and Jaynes-Cummings-Dicke-type hamiltonians depending on the considered r-matrix.

  12. ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS: Generation of Entangled Multi-atom Dicke States in Cavity Quantum Electrodynamics

    NASA Astrophysics Data System (ADS)

    Shu, Jing; Liu, Zhong

    2010-06-01

    We propose a scheme to generate two-atom maximally entangled state in cavity quantum electrodynamics (QED). The scheme can be extended to generation of entangled multi-atom Dicke states if we control the interaction time of atoms with cavity modes. We use adiabatically state evolution under large atom-cavity detuning, so the scheme is insensitive to atomic spontaneous decay. The influence of cavity decay on fidelity and success probability is discussed.

  13. Biological and molecular mechanisms of sulfur mustard analogue-induced toxicity in JB6 and HaCaT cells: possible role of ataxia telangiectasia-mutated/ataxia telangiectasia-Rad3-related cell cycle checkpoint pathway.

    PubMed

    Tewari-Singh, Neera; Gu, Mallikarjuna; Agarwal, Chapla; White, Carl W; Agarwal, Rajesh

    2010-06-21

    Effective medical treatment and preventive measures for chemical warfare agent sulfur mustard (HD)-caused incapacitating skin toxicity are lacking, because of limited knowledge of its mechanism of action. The proliferating basal epidermal cells are primary major sites of attack during HD-caused skin injury. Therefore, employing mouse JB6 and human HaCaT epidermal cells, here, we investigated the molecular mechanism of HD analogue 2-chloroethyl ethyl sulfide (CEES)-induced skin cytotoxicity. As compared to the control, up to 1 mM CEES treatment of these cells for 2, 4, and 24 h caused dose-dependent decreases in cell viability and proliferation as measured by DNA synthesis, together with S and G2-M phase arrest in cell cycle progression. Mechanistic studies showed phosphorylation of DNA damage sensors and checkpoint kinases, ataxia telangiectasia-mutated (ATM) at ser1981 and ataxia telangiectasia-Rad3-related (ATR) at ser428 within 30 min of CEES exposure, and modulation of S and G2-M phase-associated cell cycle regulatory proteins, which are downstream targets of ATM and ATR kinases. Hoechst-propidium iodide staining demonstrated that CEES-induced cell death was both necrotic and apoptotic in nature, and the latter was induced at 4 and 24 h of CEES treatment in HaCaT and JB6 cells, respectively. An increase in caspase-3 activity and both caspase-3 and poly(ADP-ribose)polymerase (PARP) cleavage coinciding with CEES-caused apoptosis in both cell lines suggested the involvement of the caspase pathway. Together, our findings suggest a DNA-damaging effect of CEES that activates ATM/ATR cell cycle checkpoint signaling as well as caspase-PARP pathways, leading to cell cycle arrest and apoptosis/necrosis in both JB6 and HaCaT cells. The identified molecular targets, quantitative biomarkers, and epidermal cell models in this study have the potential and usefulness in rapid development of effective prophylactic and therapeutic interventions against HD-induced skin toxicity

  14. Volatility dependence of Henry's law constants of condensable organics: Application to estimate depositional loss of secondary organic aerosols

    NASA Astrophysics Data System (ADS)

    Hodzic, A.; Aumont, B.; Knote, C.; Lee-Taylor, J.; Madronich, S.; Tyndall, G.

    2014-07-01

    The water solubility of oxidation intermediates of volatile organic compounds that can condense to form secondary organic aerosol (SOA) is largely unconstrained in current chemistry-climate models. We apply the Generator of Explicit Chemistry and Kinetics of Organics in the Atmosphere to calculate Henry's law constants for these intermediate species. Results show a strong negative correlation between Henry's law constants and saturation vapor pressures. Details depend on precursor species, extent of photochemical processing, and NOx levels. Henry's law constants as a function of volatility are made available over a wide range of vapor pressures for use in 3-D models. In an application using the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem) over the U.S. in summer, we find that dry (and wet) deposition of condensable organic vapors leads to major reductions in SOA, decreasing surface concentrations by ~50% (10%) for biogenic and ~40% (6%) for short chain anthropogenic precursors under the considered volatility conditions.

  15. Experimental determination of Henry's law constants of trifluoroacetic acid at 278-298 K

    NASA Astrophysics Data System (ADS)

    Kutsuna, Shuzo; Hori, Hisao

    Equilibrium partial pressures of trifluoroacetic acid ( P C(O)OH) over aqueous trifluoroacetic acid test solutions were determined at 278.15, 288.15, and 298.15 K. The concentration of undissociated trifluoroacetic acid ( C C(O)OH) in each test solution was determined by means of attenuated total reflection IR spectroscopy and window factor analysis. From the linear relationship between P C(O)OH and C C(O)OH, the Henry's law constant of trifluoroacetic acid ( KH) at 298.15 K was determined to be 5800±700 mol dm -3 atm -1 and KH at temperature T in K was determined to be KH=5780 exp[-4120×(1/298.15-1/ T)] in mol dm -3 atm -1. The KH value at 298.15 K was 0.65 times the reported value [Bowden, D.J., Clegg, S.L., Brimblecombe, P., 1996. The Henry's law constant of trifluoroacetic acid and its partitioning into liquid water in the atmosphere. Chemosphere 32, 405-420] for p Ka=0.47 and it was equal to that for p Ka=0.2.

  16. Calculating henry adsorption constants of molecular hydrogen at 77 K on alumophosphate zeolites with different microchannel sizes

    NASA Astrophysics Data System (ADS)

    Grenev, I. V.; Gavrilov, V. Yu.

    2014-01-01

    Adsorption isotherms of molecular hydrogen are measured at 77 K in a series of AlPO alumophosphate zeolites with different microchannel sizes. The potential of the intermolecular interaction of H2 is calculated within the model of a cylindrical channel of variable size. Henry constants are calculated for this model for arbitrary orientations of the adsorbate molecules in microchannels. The experimental and calculated values of the Henry adsorption constant of H2 are compared at 77 K on AlPO zeolites. The constants of intermolecular interaction are determined for the H2-AlPO system.

  17. Data set for background investigation of atmospheric constituents for Cape Henry site: August 5-22, 1974

    NASA Technical Reports Server (NTRS)

    1975-01-01

    The laboratory was located within the Fort Story Military Reservation at Cape Henry between 5 August and 21 August 1974. Total sulfur, total hydrocarbons, NO, NO2, Nox, and O3 were monitored and reported as hourly averages. Visibility was measured using an integrating nephelometer and reported as hourly averages. Twenty-four hour averaged mass loading was determined using two high volume air samplers located on different levels (25' and 50') at the site. Temperature, wind speed, relative humidity, barometric pressure and solar radiation intensity were measured at the site or supplemented by readings taken by the U. S. Coast Guard at the Cape Henry Light House.

  18. The Politics of Knowledge and the Revitalization of American Democracy: A Response to Henry Giroux's "The University in Chains: Confronting the Military-Industrial-Academic Complex"

    ERIC Educational Resources Information Center

    Fraser, Cary

    2009-01-01

    This article presents the author's response to Henry Giroux's "The University in Chains: Confronting the Military-Industrial-Academic Complex." Henry Giroux has written a provocative assessment of the contemporary challenges facing the United States as a society, which over the course of the 20th century had assumed the role of leader and exemplar…

  19. Ground-water aspects of the lower Henrys Fork region, eastern Idaho

    USGS Publications Warehouse

    Crosthwaite, E.G.; Mundorff, Maurice John; Walker, Eugene H.

    1970-01-01

    The lower Henrys Fork region in eastern Idaho includes the plains and low benches between Ashton and the junction of Henrys Fork and Snake River. The northwestern and western parts of the area are part of the Snake River basalt plain. The central part of the area is occupied by alluvial plains of the Snake, Teton, and Falls Rivers and of Henrys Fork. The alluvial deposits are underlain by basalt. The southeastern part of the area is a bench (Rexburg Bench), chiefly on silicic and basaltic volcanic rocks, which rises gradually to mountain peaks (Big Hole Mountains) southeast of the area. Irrigation wells open to the basalt under the Snake River Plain and the basalt and sands and gravels under the alluvial plains yield large amounts of water with small drawdowns. Irrigation wells in the silicic volcanic rocks and the interbedded ash, pyroclastics, and sedimentary deposits beneath the Rexburg Bench generally yield much less water. The regional water table slopes southwestward beneath the basalt and alluvial plains. It is recharged by precipitation that infiltrates into the ground in the headwaters of Henrys Fork and Falls, and Teton Rivers and by water that moves downward from an extensive perched water body caused by seepage from stream channels and surface-water irrigation. The perched water in part moves vertically down to the regional water table and in part laterally to the streams. Ground water beneath the Rexburg Bench moves generally northwestward to join the regional ground-water body beneath the alluvia,1 and basalt plain, but this area contributes very little recharge to the main aquifer body. Recharge to the regional water table is estimated to average 725,000 acre-feet annually. The regional water table is below the level of the streams in the area, and ground water in the main aquifer, therefore, is not tributary to the streams. Pumping from the regional ground-water reservoir for irrigation or other uses would have no effect on streamflow or surface

  20. Mapping Henry: Synchrotron-sourced X-ray fluorescence mapping and ultra-high-definition scanning of an early Tudor portrait of Henry VIII

    NASA Astrophysics Data System (ADS)

    Dredge, Paula; Ives, Simon; Howard, Daryl L.; Spiers, Kathryn M.; Yip, Andrew; Kenderdine, Sarah

    2015-11-01

    A portrait of Henry VIII on oak panel c. 1535 has recently undergone technical examination to inform questions regarding authorship and the painting's relationship to a group of similar works in the collections of the National Portrait Gallery, London, and the Society of Antiquaries. Due to previous conservation treatments of the painting, the conventional transmission X-radiograph image was difficult to interpret. As a result, the painting underwent high-definition X-ray fluorescence (XRF) elemental mapping on the X-ray fluorescence microscopy beamline of the Australian Synchrotron. Scans were conducted at 12.6 and 18.5 keV, below and above the lead (Pb) L edges, respectively. Typical scan parameters were 120 μm pixel size at 7 ms dwell time, with the largest scan covering an area 545 × 287 mm2 collected in 23 h (10.8 MP). XRF mapping of the panel has guided the conservation treatment of the painting and the revelation of previously obscured features. It has also provided insight into the process of making of the painting. The informative and detailed elemental maps, alongside ultra-high-definition scans of the painting undertaken before and after varnish and over-paint removal, have assisted in comparison of the finely painted details with the London paintings. The resolution offered by the combination of imaging techniques identifies pigment distribution at an extremely fine scale, enabling a new understanding of the artist's paint application.

  1. Detecting the existence of Majorana fermions via the Dicke-like effect in a triple quantum-dot system

    NASA Astrophysics Data System (ADS)

    Zhang, Rong; Duan, Chen-Long; He, J. F.; Zhao, Yue-Min

    2015-09-01

    We have proposed a feasible scheme to detect the Majorana fermions via a triple quantum-dot structure coupled a normal-metal lead and a Majorana nanowire. Our results show that the conductance spectrum display the clear Dicke-like effect, and the increase of the coupling strength between the central dot and the quantum nanowire can enhance the pronounced property. The nonzero Majorana level induce the split of the conductance peak, the dip with zero value is permanently pinned at the zero Fermi level, we find that the conductance spectrum exhibit the symmetrical feature with respect to the energy levels of two side quantum dots, and the strong coupling coefficient can reduce the region of the zero conductance. Moreover, the current-noise Fano factor can approach 2 at low bias and the large Majorana level due to the Majorana-assisted resonant transport, the significant dips of the Fano curve also indicate the coherent oscillations resulting from the nonzero Majorana level. These results are expected to serve as a sensitive indication for the detection of the Majorana bound states.

  2. Smog chamber experiments to investigate Henry's law constants of glyoxal using different seed aerosols

    NASA Astrophysics Data System (ADS)

    Jakob, Ronit

    2014-05-01

    Aerosols play an important role in the chemistry and physics of the atmosphere. Hence, they have a direct as well as an indirect impact on the earth's climate. Depending on their formation, one distinguishes between primary and secondary aerosols[1]. Important groups within the secondary aerosols are the secondary organic aerosols (SOAs). In order to improve predictions about these impacts on the earth's climate the existing models need to be optimized, because they still underestimate SOA formation[2]. Glyoxal, the smallest α-dicarbonyl, not only acts as a tracer for SOA formation but also as a direct contributor to SOA. Because glyoxal has such a high vapour pressure, it was common knowledge that it does not take part in gas-particle partitioning and therefore has no impact on direct SOA formation. However, the Henry's law constant for glyoxal is surprisingly high. This has been explained by the hydration of the aldehyde groups, which means that a species with a lower vapour pressure is produced. Therefore the distribution of glyoxal between gas- and particle phase is atmospherically relevant and the direct contribution of glyoxal to SOA can no longer be neglected. A high salt concentration present in chamber seed aerosols leads to an enhanced glyoxal uptake into the particle. This effect is called "salting-in". The salting effect depends on the composition of the seed aerosol as well as the soluble compound. For very polar compounds, like glyoxal, a "salting-in" is observed[3]. Glyoxal particle formation during a smog chamber campaign at Paul-Scherrer-Institut (PSI) in Switzerland was examined using different seed aerosols such as ammonium sulfate, sodium chloride and sodium nitrate. The aim of this campaign was to investigate Henry's law constants for different seed aerosols. During the campaign filter samples were taken to investigate the amount of glyoxal in the particle phase. After filter extraction, the analyte was derivatized and measured using UHPLC

  3. 40 CFR Appendix Vi to Part 265 - Compounds With Henry's Law Constant Less Than 0.1 Y/X

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 26 2014-07-01 2014-07-01 false Compounds With Henry's Law Constant Less Than 0.1 Y/X VI Appendix VI to Part 265 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Law Constant Less Than 0.1 Y/X Compound name CAS No. Acetaldol 107-89-1 Acetamide 60-35-5...

  4. 40 CFR Appendix Vi to Part 265 - Compounds With Henry's Law Constant Less Than 0.1 Y/X

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 26 2011-07-01 2011-07-01 false Compounds With Henry's Law Constant Less Than 0.1 Y/X VI Appendix VI to Part 265 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Law Constant Less Than 0.1 Y/X Compound name CAS No. Acetaldol 107-89-1 Acetamide 60-35-5...

  5. "Undoubtedly a Powerful Influence": Victor Henry's "Antinomies linguistiques" (1896) with an Annotated Translation of the First Chapter.

    ERIC Educational Resources Information Center

    Joseph, John E.

    1996-01-01

    Discusses Victor Henry's innovative presentation of some underlying contradictions in the premises on which linguistics is founded, cast in the Kantian form of antinomies. The review argues that no science remains more strongly contested than linguistics, a science whose origins are paradoxical and that contains outdated concepts. (30 references)…

  6. The functions of writing: transmission between generations and role assignment within the family, in Henry James and his family.

    PubMed

    Green, A

    1994-06-01

    The Jameses provide abundant material for this study of the function of writing within a family, combining a relationship between generations and between the sexes among siblings. The starting point is Henry's dream of the Galerie d'Apollon, which can be referred to its sources in reality; its autobiographical account; and its transformation into a story. This material gives clues to some central features of his unconscious conflicts with both his father and elder brother. The father's writings deal with his concern with religion, which expresses his relationship with his own father. William transforms his father's theology into philosophy and becomes one of the pioneers of modern psychology. Alice's diary recounts her identification with her father's infirmity through her hysterical paralysis. Henry's work reveals that he is the one who really succeeded in solving his conflicts with the father. His literature is transgressive according to his father's and brother's values, though he shares their ideal of a consciousness common to the Jameses. Through fiction, Henry has indirect access to the drives; but only in his work did he acknowledge these, overcoming his oedipal conflicts. Thus Henry is the closest of the Jameses to psychoanalysis; his work enables us to make some hypotheses regarding the creative process. PMID:7960433

  7. Teacher as Actor--Henry David Thoreau--From Room One-Eleven to Walden Pond and Beyond.

    ERIC Educational Resources Information Center

    Barto, David

    To help maintain class interest in the important themes addressed in "Walden" and "The Duties of Civil Disobedience," a high school English teacher has presented a dramatic monologue as Henry David Thoreau to his students. After much library research, the teacher used some of the props characteristic of the author, such as a walking stick and a…

  8. Asymmetric Synthesis of Substituted Thiolanes through Domino Thia-Michael–Henry Dynamic Covalent Systemic Resolution using Lipase Catalysis

    PubMed Central

    Zhang, Yan; Vongvilai, Pornrapee; Sakulsombat, Morakot; Fischer, Andreas; Ramström, Olof

    2014-01-01

    Dynamic systems based on consecutive thia-Michael and Henry reactions were generated and transformed using lipase-catalyzed asymmetric transformation. Substituted thiolane structures with three contiguous stereocenters were resolved in the process in high yields and high enantiomeric excesses. PMID:26190961

  9. Measurement of Henry's Law Constants Using Internal Standards: A Quantitative GC Experiment for the Instrumental Analysis or Environmental Chemistry Laboratory

    ERIC Educational Resources Information Center

    Ji, Chang; Boisvert, Susanne M.; Arida, Ann-Marie C.; Day, Shannon E.

    2008-01-01

    An internal standard method applicable to undergraduate instrumental analysis or environmental chemistry laboratory has been designed and tested to determine the Henry's law constants for a series of alkyl nitriles. In this method, a mixture of the analytes and an internal standard is prepared and used to make a standard solution (organic solvent)…

  10. "Young People Are No Longer at Risk--They Are the Risk": Henry Giroux's "Youth in a Suspect Society"

    ERIC Educational Resources Information Center

    McClennen, Sophia A.

    2012-01-01

    This article analyzes Henry Giroux's recent book Youth in a Suspect Society: democracy or disposability? (Palgrave, 2009) and situates it within his post-9/11 critical interventions. Giroux has focused his recent work on theorizing, critiquing and challenging the confluence of militarization, corporatization and right-wing ideology that has…

  11. Plastic (wire-combed) grooving of a slip-formed concrete runway overlay at Patrick Henry Airport: An initial evaluation

    NASA Technical Reports Server (NTRS)

    Marlin, E. C.; Horne, W. B.

    1977-01-01

    A wire-comb technique is described for transversely grooving the surface of a freshly laid (plastic state) slip-formed concrete overlay installed at Patrick Henry Airport. This method of surface texturing yields better water drainage and pavement skid resistance than that obtained with an older conventional burlap drag concrete surface treatment installed on an adjacent portion of the runway.

  12. Searching for Politics with Henry Giroux: Through Cultural Studies to Public Pedagogy and the "Terror of Neoliberalism"

    ERIC Educational Resources Information Center

    Robbins, Christopher G.

    2009-01-01

    Henry A. Giroux is recognized as one of the fifty most significant thinkers on education in the 20th century. He is also considered a scholar of immense influence in a number of fields internationally, hardly an inconsequential accolade in a century noted for a glut of educational and social thinkers. Yet, its wide-ranging and ever-expanding…

  13. Life of Henry Barnard: The First United States Commissioner of Education, 1867-1870. Bulletin, 1919, No. 8

    ERIC Educational Resources Information Center

    Steiner, Bernard C.

    1919-01-01

    Henry Barnard was "one of the men who revitalized the American common-school system", and as such, he is clearly worthy of a biography. Not only was his service a noted one to elementary education, but as college president and as the organizer of the United States Bureau of Education his activity also touched other parts of the country's…

  14. Disposable Youth/Damaged Democracy: Youth, Neoliberalism, and the Promise of Pedagogy in the Work of Henry Giroux

    ERIC Educational Resources Information Center

    Robbins, Christopher G.

    2012-01-01

    Perhaps more extensively and provocatively than any other contemporary theorist, Henry Giroux has theorized the relationship between youth and democratic public life. Beginning arguably with his first book, Ideology, Culture, and the Process of Schooling (Temple University Press, 1981), and continuing across a number of critically acclaimed works…

  15. Constituting Antebellum African American Identity: Resistance, Violence, and Masculinity in Henry Highland Garnet's (1843) "Address to the Slaves"

    ERIC Educational Resources Information Center

    Jasinski, James

    2007-01-01

    In August 1843 Presbyterian minister Henry Highland Garnet delivered his "Address to the Slaves of the United States of America" to the National Convention of Colored Citizens in Buffalo, NY. While often read (and almost as often dismissed) as either an unqualified call for a violent slave rebellion or, at the least, a celebration of prior acts of…

  16. Marse Henry and His Lady Insurrecto: A Case of Fictional Reminiscences for the High School History Classroom.

    ERIC Educational Resources Information Center

    May, Robert E.

    1992-01-01

    Discusses the use of autobiography and personal memoirs as teaching tools in the history classroom. Presents information from Henry Watterson's autobiography that discusses the life of Jane Cazneau. Points out flaws in which incorrect information is presented as true. Includes a complete lesson plan for use with the example. (DK)

  17. Significance of the Henri-Michaelis-Menten theory in abiotic catalysis: catechol oxidation by δ-MnO 2

    NASA Astrophysics Data System (ADS)

    Naidja, A.; Huang, P. M.

    2002-05-01

    The Henri-Michaelis-Menten theory, for more than eight decades, was only restricted to homogeneous enzymatic catalysis. A mimic of an enzymatic kinetics based on the Henri-Michaelis-Menten concept was experimentally observed in heterogeneous catalysis in the present study with δ-MnO 2 as an abiotic catalyst in the oxidation of catechol (1,2-dihydroxybenzene). Using the derived linear forms of Lineweaver-Burk or Hofstee, the data show that similar to the enzyme tyrosinase, the kinetics of the catechol oxidation catalyzed by δ-MnO 2 can be described by the Henri-Michaelis-Menten equation, V0= VmaxS/( Km+ S), where Vmax is the maximum velocity and Km the concentration of the substrate ( S) corresponding to an initial velocity ( V0) half of Vmax. By analogy to the enzymatic kinetics, the parameters Vmax and Km for an heterogeneous abiotic catalysis were derived for the first time. Further, based on the concentration of the active centers of the mineral oxide, the kinetic constants kcat and kcat/ Km, respectively, representing the turnover frequency and the efficiency of the mineral catalyst, were also determined from the derived general rate equation of Briggs and Haldane. As an abiotic catalyst, δ-MnO 2 has a paramount role in the oxidation of phenolic compounds in soil, sediment and water environments. Therefore, the present observation is of fundamental and practical significance in elucidating the affinity between an abiotic catalyst and a substrate based on the Henri-Michaelis-Menten theory.

  18. 40 CFR Appendix Vi to Part 265 - Compounds With Henry's Law Constant Less Than 0.1 Y/X

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 27 2012-07-01 2012-07-01 false Compounds With Henry's Law Constant Less Than 0.1 Y/X VI Appendix VI to Part 265 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL...

  19. "Extraordinary Understandings" of Composition at the University of Chicago: Frederick Champion Ward, Kenneth Burke, and Henry W. Sams

    ERIC Educational Resources Information Center

    Beasley, James P.

    2007-01-01

    While Richard Weaver, R. S. Crane, Richard McKeon, and Robert Streeter have been most identified with rhetoric at the University of Chicago and its institutional return in the 1950s, the archival record demonstrates that Frederick Champion Ward, dean of the undergraduate "College" from 1947 to 1954, and Henry W. Sams, director of English in the…

  20. All Are Worthy to Know the Earth: Henry De la Beche and the Origin of Geological Literacy

    ERIC Educational Resources Information Center

    Clary, Renee M.; Wandersee, James H.

    2009-01-01

    Henry T. De la Beche (1796-1855) began his geological career within an elite circle (Geological Society of London, 1817; FRS, 1819), collaborating with influential gentlemen geologists and publishing original research. When his independent income dwindled, De la Beche managed to secure governmental funding for his mapping projects. This led to…

  1. Henry's law constants for paint solvents and their implications on volatile organic compound emissions from automotive painting

    SciTech Connect

    Kim, B.R.; Kalis, E.M.; DeWulf, T.; Andrews, K.M.

    2000-02-01

    This paper describes experimental results of equilibrium partitioning of several significant paint solvents and formaldehyde between air and water to quantify the potential for capturing and retaining the constituents in spraybooth scrubber water during automotive painting. The compounds studied are toluene, n-butanol, methyl ethyl ketone methyl propyl ketone, methyl isobutyl ketone, methyl amyl ketone, butyl cellosolve, butyl cellosolve acetate, butyl carbitol, and n-methyl-2-pyrrolidinone. A set of field data collected at a Ford Motor Company assembly plant was also analyzed to determine whether data were consistent with the equilibrium phenomenon. The primary findings include: (a) There were more than six orders of magnitude difference in the Henry's law constants among the solvents studied. A solvent with a smaller constant is less easily stripped from water. The Henry's law constants decrease in the following order: toluene and xylenes > methyl ethyl ketone > n-butanol > butyl cellosolve acetate > butyl cellosolve > formaldehyde > butyl carbitol > n-methyl-2-pyrrolidinone. (b) Field data showed accumulation of n-methyl-2-pyrrolidinone and stable concentrations of butyl carbitol, butyl cellosolve, and n-butanol in the paint-sludge pit water during a 2-month period. Stable concentrations indicate a continuous, balanced capture and stripping of the solvents. Data were consistent with measured Henry's law constants. (c) The low Henry's law constant for formaldehyde is the result of the fact that it is hydrated when dissolved in water.

  2. A Vision for the Future: Henry G. Bennett Memorial Library, Southeastern Oklahoma State University Strategic Plan, 2002-2007.

    ERIC Educational Resources Information Center

    Davis, Dorothy

    This document presents the five-year strategic plan developed by the library director, staff, and the Library Committee for the Henry G. Bennett Memorial Library, Southeastern Oklahoma State University. The goal of this plan is to provide a framework that the library can use to focus energy and resources in fulfilling the mission of the library…

  3. The biologist as psychologist: Henry Fairfield Osborn's early mental ability investigations.

    PubMed

    Young, Jacy L

    2012-01-01

    In the early 1880s, biologist Henry Fairfield Osborn conducted some of the first questionnaire research in American psychology. This article details how he came to distribute Francis Galton's questionnaire on mental imagery in the United States, as well as how he altered it to suit his own burgeoning psychological research interests. The development and circulation of questionnaires at the very beginning of American scientific psychology, first by Osborn and later by G. Stanley Hall, is discussed in terms of the new psychology's often-overlooked methodological plurality. Further, Osborn's late nineteenth century interest in individual variation and group differences in mental imagery ability are discussed in relation to his pervasive educational and social concerns, as well as his eventual status as a prominent eugenicist in the twentieth century United States. This research into mental imagery ability foreshadows the eugenic-oriented intelligence testing that developed in the early twentieth century. PMID:22589139

  4. The diary of assistant surgeon Henry Piers, HMS Investigator, 1850-54.

    PubMed

    Savours, A

    1990-01-01

    From the 16th to the mid 19th century, many voyages were made from England to discover a North West Passage between the Atlantic and the Pacific oceans. The Investigator was one of some 40 vessels that searched for the lost North West Passage expedition of 1845-48 under the command of Sir John Franklin in HM Ships Erebus and Terror, which became beset among what are now known as the Canadian Arctic Islands. The "Investigators" found no trace of Franklin, but were the first to traverse the North West Passage, although their ship had to be abandoned in Mercy Bay on Banks Island after two winters there. The diary of Assistant Surgeon Henry Piers, from the manuscript collection of the National Maritime Museum, Greenwich, is here examined. Reference is also made to the narrative and report published by the senior surgeon of the Investigator, Dr Alexander Armstrong. PMID:2197406

  5. Henry George's contribution to modern environmental policy: Part II, The theory applied

    SciTech Connect

    Backhaus, J. ); Krabbe, J.J. )

    1992-01-01

    Many natual resources are inefficiently used in advanced western economies. Overuse of common property resources such as air occurs. The assignment of property rights through grandfathering established uses can have disincentive effects as an entry barrier to new industry and allow the continuation of pernicious uses. A Henry George type alternative remedial system of legal and tax treatment is developed. It systematically covers all natural resources and their deteriorations, as well as improvements. This updating will be extremely useful to everyone concerned with ecology. Also the task of industrial siting can be accomplished so as to ensure an efficient use of natural resources. Present problems of dealing with pollution and hazardous waste sites under tort law would be avoided. This part of the two-part paper covers the application of the theory. The last issue of this journal presented the basic theoretical considerations.

  6. An improved approach for measuring Henry's law coefficients of atmospheric organics

    NASA Astrophysics Data System (ADS)

    Kish, J. Duncan; Leng, Chunbo; Kelley, Judas; Hiltner, Joseph; Zhang, Yunhong; Liu, Yong

    2013-11-01

    In this work, we present an improved method for Henry's law constant, KH, measurements by coupling a bubble column system with a gas cell/infrared spectrometer. To demonstrate the feasibility of this approach, we measured KH of atmospheric organics from three different classes, namely, toluene (hydrocarbon), sec-butylamine (amine), and cineole (ether). We also reported temperature and ionic strength effects on the KH values of sec-butylamine for the first time. As shown in this work, the method is highly capable of determining KH of atmospheric organic species regardless the presence of heteroatoms and the occurrence of hydration in water. It is very versatile, easy to use, reliable, and efficient. It is also well-suited for undergraduate students to conduct environmental chemical science research during academic semesters.

  7. Henry H. Cheek and transformism: new light on Charles Darwin's Edinburgh background

    PubMed Central

    Jenkins, Bill

    2015-01-01

    Evidence for the transformist ideas espoused by Henry H. Cheek (1807–33), a contemporary of Charles Darwin's at the University of Edinburgh, sheds new light on the intellectual environment of Edinburgh in the late 1820s and early 1830s. Cheek was the author of several papers dealing with the transmutation of species influenced by the theories of Étienne Geoffroy Saint-Hilaire (1772–1844), Jean-Baptiste Lamarck (1744–1829) and the Comte de Buffon (1707–88). Some of these were read to student societies, others appeared in the Edinburgh Journal of Natural and Geographical Science, which Cheek edited between 1829 and 1831. His writings give us a valuable window onto some of the transformist theories that were circulating among Darwin's fellow medical students in the late 1820s, to which Darwin would have been exposed during his time in Edinburgh, and for which little other concrete evidence survives. PMID:26665300

  8. HENRY H. CHEEK AND TRANSFORMISM: NEW LIGHT ON CHARLES DARWIN'S EDINBURGH BACKGROUND.

    PubMed

    Jenkins, Bill

    2015-06-20

    Evidence for the transformist ideas espoused by Henry H. Cheek (1807-33), a contemporary of Charles Darwin's at the University of Edinburgh, sheds new light on the intellectual environment of Edinburgh in the late 1820s and early 1830s. Cheek was the author of several papers dealing with the transmutation of species influenced by the theories of Etienne Geoffroy Saint-Hilaire (1772-1844), Jean-Baptiste Lamarck (1744-1829) and the Comte de Buffon (1707-88). Some of these were read to student societies, others appeared in the Edinburgh Journal of Natural and Geographical Science, which Cheek edited between 1829 and 1831. His writings give us a valuable window onto some of the transformist theories that were circulating among Darwin's fellow medical students in the late 1820s, to which Darwin would have been exposed during his time in Edinburgh, and for which little other concrete evidence survives. PMID:26665300

  9. From bench to bedside: Claude Bernard, Henry K. Beecher, MD, and science in anesthesia.

    PubMed

    Edwards, Matthew L

    2013-04-01

    Success with the medical management of pain grew tremendously after William Thomas Green Morton's successful demonstration of surgical anesthesia in 1846: Henry K. Beecher's clinical and experimental contributions to anesthesia during and after World War II had a profound impact on how clinicians and experimentalists study human populations in medicine. Beecher found that pain research required human subjects because pain was different for each individual. Nearly 100 years before Beecher, Claude Bernard similarly considered the complexity and uniqueness of human research subjects. Bernard and Beecher both preferred animal subjects in research when appropriate, but suggested that studies involving some mental, bodily, and cognitive processes required human subjects. Although Beecher and Bernard's lives did not overlap, these two men similarly confronted the issues of complexity in human and animal research, particularly in those phenomena involving higher cognitive functions. PMID:24205750

  10. Anarchism and homosexuality in Wilhelmine Germany: Senna Hoy, Erich Mühsam, John Henry Mackay.

    PubMed

    Fähnders, W

    1995-01-01

    Homosexuality and its social and legal suppression were heatedly discussed in early twentieth-century Germany, including on the left. Among the anarchists, positions with markedly diverse forms of argument were espoused by such prominent advocates of individualist anarchism as John Henry Mackay and by others coming from the Bakuninist tradition, such as Senna Hoy and Erich Mühsam. Their writings evidence that prior to World War I and into the 1920s, German anarchists--especially when compared with the Social Democrats--intervened consistently on behalf of individual self-determination extending into the sexual sphere, even though an undercurrent of hostility toward homosexuals persisted within the leftist movement as a whole. PMID:8666752

  11. Analytical Phase Equilibrium Function for Mixtures Obeying Raoult's and Henry's Laws

    NASA Astrophysics Data System (ADS)

    Hayes, Robert

    When a mixture of two substances exists in both the liquid and gas phase at equilibrium, Raoults and Henry's laws (ideal solution and ideal dilute solution approximations) can be used to estimate the gas and liquid mole fractions at the extremes of either very little solute or solvent. By assuming that a cubic polynomial can reasonably approximate the intermediate values to these extremes as a function of mole fraction, the cubic polynomial is solved and presented. A closed form equation approximating the pressure dependence on mole fraction of the constituents is thereby obtained. As a first approximation, this is a very simple and potentially useful means to estimate gas and liquid mole fractions of equilibrium mixtures. Mixtures with an azeotrope require additional attention if this type of approach is to be utilized. This work supported in part by federal Grant NRC-HQ-84-14-G-0059.

  12. Analytical Phase Equilibrium Function for Mixtures Obeying Raoult's and Henry's Laws

    NASA Astrophysics Data System (ADS)

    Hayes, Robert

    When a mixture of two substances exists in both the liquid and gas phase at equilibrium, Raoults and Henry's laws (ideal solution and ideal dilute solution approximations) can be used to estimate the gas and liquid mole fractions at the extremes of either very little solute or solvent. By assuming that a cubic polynomial can reasonably approximate the intermediate values to these extremes as a function of mole fraction, the cubic polynomial is solved and presented. A closed form equation approximating the pressure dependence on mole fraction of the constituents is thereby obtained. As a first approximation, this is a very simple and potentially useful means to estimate gas and liquid mole fractions of equilibrium mixtures. Mixtures with an azeotrope require additional attention if this type of approach is to be utilized. This work paid for under NRC-HQ-84-14-G-0059.

  13. Acid Brothers: Henry Beecher, Timothy Leary, and the psychedelic of the century.

    PubMed

    Moreno, Jonathan D

    2016-01-01

    Henry Knowles Beecher, an icon of human research ethics, and Timothy Francis Leary, a guru of the counterculture, are bound together in history by the synthetic hallucinogen lysergic acid diethylamide (LSD). Both were associated with Harvard University during a critical period in their careers and of drastic social change. To all appearances the first was a paragon of the establishment and a constructive if complex hero, the second a rebel and a criminal, a rogue and a scoundrel. Although there is no evidence they ever met, Beecher's indirect struggle with Leary over control of the 20th century's most celebrated psychedelic was at the very heart of his views about the legitimate, responsible investigator. That struggle also proves to be a revealing bellwether of the increasingly formalized scrutiny of human experiments that was then taking shape. PMID:27499488

  14. Why Henry III of Navarre's Hair Probably did not Turn White Overnight.

    PubMed

    Navarini, Alexander A; Trüeb, Ralph M

    2010-01-01

    Although a rare event, sudden whitening of hair (canities subita) has reportedly affected a number of well-known historical figures, usually in relation to dramatic events in their lives. Although early accounts are substantiated by more recent case reports in scientific literature, we suspect that the phenomenon is not only used as a literary means in fiction, with the aim of dramatizing, but probably also in historical accounts. For this purpose, we examine the case history of Henry III of Navarre who allegedly turned white on the evening of the Saint Bartholomew's day massacre, and challenge this claim, due to inconsistencies in his biography, with the current pathophysiological understanding of canities subita. PMID:21188015

  15. The Henry street consortium population-based competencies for educating public health nursing students.

    PubMed

    Schaffer, Marjorie A; Cross, Sharon; Keller, Linda O; Nelson, Pamela; Schoon, Patricia M; Henton, Pat

    2011-01-01

    The Henry Street Consortium, a collaboration of nurse educators from universities and colleges and public health nurses (PHNs) from government, school, and community agencies, developed 11 population-based competencies for educating nursing students and the novice PHN. Although many organizations have developed competency lists for experts, the Consortium developed a set of competencies that clearly define expectations for the beginning PHN. The competencies are utilized by both education and practice. They guide nurse educators and PHNs in the creation of learning experiences that develop population-based knowledge and skills for baccalaureate nursing students. Public health nursing leaders use the competencies to frame their expectations and orientations for nurses who are new to public health nursing. This paper explains the meaning of each of the 11 population-based competencies and provides examples of student projects that demonstrate competency development. Strategies are suggested for nurse educators and PHNs to promote effective population-based student projects in public health agencies. PMID:21198818

  16. New Hypersonic Shock Tunnel at the Laboratory of Aerothermodynamics and Hypersonics Prof. Henry T. Nagamatsu

    SciTech Connect

    Toro, P. G. P.; Minucci, M. A. S.; Chanes, J. B. Jr; Oliveira, A. C.; Gomes, F. A. A.; Myrabo, L. N.; Nagamatsu, Henry T.

    2008-04-28

    The new 0.60-m. nozzle exit diameter hypersonic shock tunnel was designed to study advanced air-breathing propulsion system such as supersonic combustion and/or laser technologies. In addition, it may be used for hypersonic flow studies and investigations of the electromagnetic (laser) energy addition for flow control. This new hypersonic shock tunnel was designed and installed at the Laboratory for of Aerothermodynamics and Hypersonics Prof. Henry T. Nagamatsu, IEAv-CTA, Brazil. The design of the tunnel enables relatively long test times, 2-10 milliseconds, suitable for the experiments performed at the laboratory. Free stream Mach numbers ranging from 6 to 25 can be produced and stagnation pressures and temperatures up to 360 atm. and up to 9,000 K, respectively, can be generated. Shadowgraph and schlieren optical techniques will be used for flow visualization.

  17. The Impact of the Henry Draper Catalogue on 20th-century Astronomy

    NASA Astrophysics Data System (ADS)

    Welther, B. L.

    1999-12-01

    By 1900 there was a definite need to update the great star catalogues of the 19th century. First of all, the coordinates in them were pinned to the epoch of 1875. Then, too, the magnitudes were not on any systematic scale. Finally, they were all published before astronomers had any ideas or data for classifying large numbers of stars by their spectra. Under the leadership of Edward Pickering and the financing of Anna Palmer Draper, the work on the Henry Draper Memorial began at Harvard College Observatory in the late 1880s. Its primary goal was to gather and classify the photographic spectra of about 100,000 stars. As a test case, Pickering had Williamina Fleming develop a simple classification scheme and apply it to the spectra of about 10,000 stars. The Draper Catalogue was published in 1890. For the next two decades, Pickering worked to have astronomers approve the Harvard Classification scheme. After that happened in 1910 at the meeting of the International Solar Union, Annie Jump Cannon began the project of classifying 100,000 stars. She was so efficient that she completed the work in two years. Rather than limiting it to that number at that time, she continued classifying spectra for another two years for a total of 225,300 stars. Although Cannon completed the classification in 1915, it was not until 1918 that the first of nine volumes of the Henry Draper Catalogue was published. At that time, it was greeted with enthusiasm and congratulations from eminent astronomers around the world: Jacobus Kapteyn in the Netherlands, Herbert Hall Turner in England, Harlow Shapley in California, to name a few. Today, the HD Catalogue is now online and endures as a source of coherent data for a wide variety of ongoing investigations of the Milky Way.

  18. Style and non-style in anatomical illustration: From Renaissance Humanism to Henry Gray

    PubMed Central

    Kemp, Martin

    2010-01-01

    Style is a familiar category for the analysis of art. It is less so in the history of anatomical illustration. The great Renaissance and Baroque picture books of anatomy illustrated with stylish woodcuts and engravings, such as those by Charles Estienne, Andreas Vesalius and Govard Bidloo, showed figures in dramatic action in keeping with philosophical and theological ideas about human nature. Parallels can be found in paintings of the period, such as those by Titian, Michelangelo and Hans Baldung Grien. The anatomists also claimed to portray the body in an objective manner, and showed themselves as heroes of the discovery of human knowledge. Rembrandt’s painting of Dr Nicholas Tulp is the best-known image of the anatomist as hero. The British empirical tradition in the 18th century saw William Cheselden and William Hunter working with techniques of representation that were intended to guarantee detailed realism. The ambition to portray forms life-size led to massive volumes, such as those by Antonio Mascagni. John Bell, the Scottish anatomist, criticized the size and pretensions of the earlier books and argued for a plain style adapted to the needs of teaching and surgery. Henry Gray’s famous Anatomy of 1858, illustrated by Henry Vandyke Carter, aspired to a simple descriptive mode of functional representation that avoided stylishness, resulting in a style of its own. Successive editions of Gray progressively saw the replacement of Gray’s method and of all his illustrations. The 150th anniversary edition, edited by Susan Standring, radically re-thinks the role of Gray’s book within the teaching of medicine. PMID:20447244

  19. Style and non-style in anatomical illustration: From Renaissance Humanism to Henry Gray.

    PubMed

    Kemp, Martin

    2010-02-01

    Style is a familiar category for the analysis of art. It is less so in the history of anatomical illustration. The great Renaissance and Baroque picture books of anatomy illustrated with stylish woodcuts and engravings, such as those by Charles Estienne, Andreas Vesalius and Govard Bidloo, showed figures in dramatic action in keeping with philosophical and theological ideas about human nature. Parallels can be found in paintings of the period, such as those by Titian, Michelangelo and Hans Baldung Grien. The anatomists also claimed to portray the body in an objective manner, and showed themselves as heroes of the discovery of human knowledge. Rembrandt's painting of Dr Nicholas Tulp is the best-known image of the anatomist as hero. The British empirical tradition in the 18th century saw William Cheselden and William Hunter working with techniques of representation that were intended to guarantee detailed realism. The ambition to portray forms life-size led to massive volumes, such as those by Antonio Mascagni. John Bell, the Scottish anatomist, criticized the size and pretensions of the earlier books and argued for a plain style adapted to the needs of teaching and surgery. Henry Gray's famous Anatomy of 1858, illustrated by Henry Vandyke Carter, aspired to a simple descriptive mode of functional representation that avoided stylishness, resulting in a style of its own. Successive editions of Gray progressively saw the replacement of Gray's method and of all his illustrations. The 150th anniversary edition, edited by Susan Standring, radically re-thinks the role of Gray's book within the teaching of medicine. PMID:20447244

  20. Henry Solomon Wellcome: A philanthropist and a pioneer sponsor of medical research in the Sudan

    PubMed Central

    Adeel, Ahmed Awad A.

    2013-01-01

    Henry Solomon Wellcome, the famous drug manufacturer had a fascinating association with the Sudan. Besides supporting tropical medicine research in this country, he established an extensive project in the Sudan that aimed at combining archeological excavations, philanthropy and social reform. This article is an archives-based account on this side of Wellcome’s association with the Sudan. The article starts with Wellcome’s early years in the American Midwest and the evolution of his career and his rise as a world-renowned drug manufacturer. After the battle of Omdurman, Wellcome visited Sudan in 1900 – 1901 where he offered to support the establishment of the research laboratories which later came to be known as the Wellcome Tropical Research Laboratories in Khartoum. He then became directly involved in the planning and running of extensive archeological excavations in the central Sudan. This project served as a field in which Wellcome found an outlet for his philanthropy. More than 4000 labourers were employed in Jebel Moya. Professional archeologists and anatomists were recruited by Wellcome to supervise the work, and all the requirements in terms of equipment were catered for. Wellcome devised a Savings Bank System whereby part of the earnings of each labourer were saved to him till the end of the season. He also introduced one of his innovations: aerial photography using box kite which was used for the first time in archeology. Wellcome made it a rule that no applicant should be turned away. The Camp Commandant had to find suitable work for each applicant, including the handicapped who were assigned to appropriate jobs like mending baskets or cutting grass for building huts. Wellcome’s welfare work had a significant impact on the local inhabitants of Jebel Moya. Henry Solomon Wellcome, 1906. Oil painting by Hugh Goldwin Riviere. Credit: Wellcome Library PMID:27493379

  1. Tropospheric light alcohols, carbonyls, and acetonitrile: Concentrations in the southwestern United States and Henry's Law data

    NASA Astrophysics Data System (ADS)

    Snider, Jefferson R.; Dawson, G. A.

    1985-04-01

    Aliphatic alcohols (C1 - C4), aldehydes (C1 - C2) and ketones (C3 - C4) have been determined at Tucson, Arizona, and at two rural sites about 40 km distant. Acetonitrile was also measured at the rural sites. The method involved condensation sampling, condensate preconcentration, and gas chromatography. Henry's law coefficients were required for all components and were determined. Mean concentrations in Tucson were higher than those in the rural areas by factors typically between 2 and 8; urban formaldehyde was only slightly elevated. Mean alcohol concentrations ranged from 7.9 ppb (C1) to 0.12 ppb (C4) within the city and from 2.6 ppb (C1) to 0.06 ppb (C4) at the rural sites. Acetone was found at 12 ppb in the city and 2.8 ppb at the rural sites. Concentrations of butanone were a factor of 5 lower. Acetaldehyde, at 23 ppb (city) and 6.9 ppb (rural), far exceeded formaldehyde concentrations (1.8 ppb in the city, and 1.5 ppb at the rural sites). Acetonitrile was found at the rural sites at a mean concentration of 60 ppt. A dimensionless Henry's law coefficient (mol L-1 of liquid/mol L-1 of vapor) was suprisingly similar for the alcohols at 0°C, ranging between 2×104 and 3.4×104 (900-1500 mol L-1 atm-1) the ketones were a factor of 10 lower. For acetaldehyde the coefficient was 1.7×103 (76 mol L-1 atm-1) and for acetonitrile 3.7×103 (165 mol L-1 atm-1). Concentrations of oxygenated organics in the condensates and in precipitation were compared; it was tentatively concluded that concentration differences of the carbonyls were consistent with these species being produced within the cloud, for example, by aqueous photochemistry.

  2. FRW cosmological models in Brans-Dicke theory of gravity with variable q and dynamical \\varLambda-term

    NASA Astrophysics Data System (ADS)

    Chand, Avtar; Mishra, R. K.; Pradhan, Anirudh

    2016-02-01

    Exact solution of modified Einstein's field equations are considered within the scope of spatially homogeneous and isotropic Fraidmann-Robertson-Walker (FRW) space-time filled with perfect fluid in the frame work of Brans-Dicke scalar-tensor theory of gravity. In this paper we have investigated the flat, open and closed FRW models and the effect of dynamic cosmological term on the evolution of the universe. Two types of FRW cosmological models are obtained by setting the power law between the scalar field φ and the scale factor a and deceleration parameter (DP) q as a time dependent. The concept of time dependent DP with some proper assumptions yield two type of the average scale factors (i) a(t)=[sinh(α t)]^{1/n} and (ii) a(t)=[t^{α}et]^{1/n}, α and n≠ 0 are arbitrary constants. In case (i), for 0 < n ≤ 1, it generates a class of accelerating models while for n > 1, the models of the universe exhibit phase transition from early decelerating to present accelerating phase and the transition redshift zt has been calculated and found to be in good agreement with the results from recent astrophysical observations. In case (ii), for n ≥ 2 and α = 1, we obtain a class of transit models of the universe from early decelerating to present accelerating phase. Taking into consideration the observational data, we conclude that the cosmological constant behaves as a positive decreasing function of time. The physical and geometric properties of the models are also discussed with the help of graphical presentations.

  3. Experimentally feasible set of criteria detecting genuine multipartite entanglement in n-qubit Dicke states and in higher-dimensional systems

    SciTech Connect

    Huber, Marcus; Erker, Paul; Schimpf, Hans; Gabriel, Andreas; Hiesmayr, Beatrix

    2011-04-15

    We construct a set of criteria detecting genuine multipartite entanglement in arbitrary dimensional multipartite systems. These criteria are optimally suited for detecting multipartite entanglement in n-qubit Dicke states with m excitations, as shown in exemplary cases. Furthermore, they can be employed to detect multipartite entanglement in different states related to quantum cloning, decoherence-free communication, and quantum secret sharing. In a detailed analysis, we show that the criteria are also more robust to noise than any other criterion known so far, especially with increasing system size. Furthermore, it is shown that the number of required local observables scales only polynomially with size, thus making the criteria experimentally feasible.

  4. Cecilia Payne-Gaposchkin, Henry Norris Russell Lecture: Fifty Years of Novae

    NASA Astrophysics Data System (ADS)

    Burbidge, E. M.

    1999-05-01

    It is easy to pick out my most memorable meeting of the AAS: the 149th meeting held in January, 1977, and hosted by the University of Hawaii, in Honolulu, HI. It was the meeting at which two traditions of the Society were broken, and we moved into the era of equal opportunity for women astronomers. Cecilia Payne-Gaposchkin received the highest award of the AAS: the Henry Norris Russell Lectureship. This award had never before been available to women, otherwise Cecilia would, years earlier, have been honored for the many achievements in her lifetime of renowned astronomical research. And I, the first woman to be elected President of the AAS, had the honor of presenting the illuminated scroll to Cecilia, and of introducing her on the platform where she delivered the Henry Norris Russell Prize Lecture, entitled ``Fifty Years of Novae"(1) . Cecilia opened by comparing the experience of young and old scientists in achieving exciting results from their research, and then led us through the history of the discoveries of and about some famous novae. She described the physical picture that emerged from studies of their light curves, their spectra, and the discovery of their binary nature. Three important tables were included, listing data on cataclysmic binaries (dwarf novae) and their link to the nova phenomenon in general. She recalled that she and Sergei Gaposchkin had hesitated between the names catastrophic and cataclysmic for the dwarf novae, and decided on the latter, from the dictionary definitions of those two terms: ``a cataclysm is a great and general flood" while a catastrophe ``is a final event". The nova phenomenon is recurrent, as are the dwarf novae, and both involve an outpouring of a flood of energy. She concluded by describing her 50 years' experience with novae as presenting ``the contemporary portrait of a nova", rather than a final picture, and by forecasting that the next 50 years of discovering and studying novae will be as full of surprises as the

  5. Discharge ratings for control structures at McHenry Dam on the Fox River, Illinois

    USGS Publications Warehouse

    Fisk, G.G.

    1988-01-01

    Twenty-three measurement of discharge were used to determine discharge ratings for the five adjustable sluice gates, spillway and fish ladder at McHenry Dam on the Fox River in Illinois. Discharge ratings were determined for free weir, free orifice, and submerged orifice flow regimes. Hydraulic conditions that identify flow regimes at McHenry Dam are defined by ratios between headwater depth (h1), tailwater depth (h3), and gate opening (hg). Flow under the sluice gates is identified as weir flow when the ratio of gate opening to headwater depth is greater than 0.73, and as orifice flow when hg/H1 is less than 0.73. Free orifice flow occurs when the ratio of tailwater depth to gate opening is less than 1.3, and submerged orifice flow occurs when h3/hg is greater than 1.3. Flow under the sluice gates is identified as free weir flow when the ratio of tailwater depth to headwater depth is less than 0.75, and as submerged weir flow when h3/h1 is greater than 0.75. Flow over the spillway is identified as free weir flow when the ratio of tailwater depth to headwater depth is less than 0.60, and as submerged weir flow when h3/h1 is greater than 0.60. Discharge coefficients to be used in equations to compute discharge for various hydraulic conditions were determined. Four discharge measurement, ranging from 169 to 2990 cu ft/sec, were used to define discharge coefficients that varies from 2.61 to 3.14 for free weir flow over the spillway. Nineteen discharge measurements, ranging from 180 to 4050 cu ft/sec, were used to define discharge coefficients for free weir, free orifice, and submerged orifice flow under the sluice gates. The average value of the discharge coefficient for free weir flow under the sluice gates is 3.17. Discharge coefficients for free orifice flow varied from 0.48 to 0.66 and the discharge coefficients for submerged orifice flow from the two measurements were 0.59 and 0.67. (Author 's abstract)

  6. Superfund Record of Decision (EPA Region 3): William Dick Lagoons, West Caln Township, Chester County, PA. (First remedial action), June 1991

    SciTech Connect

    Not Available

    1991-09-28

    The 4.4-acre William Dick Lagoons site is a chemical wastewater disposal site in West Caln Township, Chester County, Pennsylvania. An estimated 30 residences located within 1,000 feet of the site use private wells for their drinking water supply. Two other Superfund sites are near the site. From the 1950's to 1970, Mr. William Dick used the lagoons to dispose of wastewater left from cleaning the interiors of chemical and petroleum tank trailers owned primarily by Chemical Leaman Tank Lines, (CLTL), and residual chemical products. Later in 1970, vandalism caused the release of an estimated 300,000 gallons of wastewater into Birch Run, a tributary of the West Branch of Brandywine Creek. As a result of this discharge, more than 2,600 fish died, and water supplies that used Brandywine Creek as a water source were closed. The Record of Decision (ROD) provides an interim remedy and addresses contaminated residential water as Operable Unit 1 (OU1) and ground water as OU2. A future ROD will address source control and will provide a remedy for the cleanup of contaminated soil. The primary contaminants of concern affecting the ground water are VOCs including benzene, PCE, and TCE; other organics including phenols; and metals. The selected remedial action for the site is included.

  7. William Henry, Duke of Gloucester (1689-1700), son of Queen Anne (1665-1714), could have ruled Great Britain.

    PubMed

    Holmes, G E F; Holmes, F F

    2008-02-01

    Hope for continuation of the Stuart dynasty in Britain ended with the death, from pneumonia in 1700, of the 11-year-old son of Princess Anne and Prince George, William Henry Duke of Gloucester. Considered by some to have been physically and mentally unfit to reign, careful examination of primary source materials shows him to have been a bright and interesting boy with mild hydrocephalus. Had he lived, he could have ruled. PMID:18463064

  8. Apportionment of NMHC tailpipe vs non-tailpipe emissions in the Fort McHenry and Tuscarora mountain tunnels

    NASA Astrophysics Data System (ADS)

    Gertler, Alan W.; Fujita, Eric M.; Pierson, William R.; Wittorff, David N.

    Measurements of on-road emissions of non-methane hydrocarbons (NMHCs) were made in the Fort McHenry Tunnel (Baltimore) and Tuscarora Mountain Tunnel (Pennsylvania) during the summer of 1992. Measurements were made during 11 one-hour periods in the Fort McHenry Tunnel and during 11 one-hour periods in the Tuscarora Mountain Tunnel. The observed light-duty fleets were quite new, with a median model year of approximately 1989. Speciated NMHC values were obtained from analyses of canister and Tenax samples, and light-duty speciated emission factors were calculated for the two tunnels. Fuel samples were collected in the area around the tunnels for use in constructing headspace and liquid fuel profiles for the chemical mass balance (CMB) receptor model. Profiles of tailpipe emissions were obtained from the literature. The CMB was used to apportion tailpipe from non-tailpipe emissions. Non-tailpipe sources were found to constitute approximately 15% of the light-duty NMHC emissions. The Federal automotive emission-rate models, MOBILE4.1 and MOBILE5, underpredicted non-tailpipe emissions, assigning approximately 9% and 6.5%, respectively, to non-tailpipe sources. In terms of total absolute emissions, MOBILE5 predictions were approximately a factor of 2 greater than MOBILE4.1 predictions. Both MOBILE4.1 and MOBILE5 underestimated the NMHC emissions in the Fort McHenry Tunnel and overpredicted the NMHC emissions in the Tuscarora Mountain Tunnel. In all cases, the MOBILE models underestimated the absolute value of the non-tailpipe emissions. The ability of the MOBILE models to account for observed emissions when conditions are more variable than those studies in the Fort McHenry and Tuscarora Mountain tunnels is still an open question.

  9. Synthesis of novel Schiff base ligands from gluco- and galactochloraloses for the Cu(II) catalyzed asymmetric Henry reaction.

    PubMed

    Alkan, Sevda; Telli, Fatma Ç; Salman, Yeşim; Astley, Stephen T

    2015-04-30

    A series of chiral Schiff base ligands has been prepared using aminochloralose derivatives of glucose and galactose. These ligands were used as catalysts in the asymmetric Henry reaction in the presence of Cu(II) ions giving yields of up to 95%. An interesting solvent dependency on enantiomeric control was observed with the best enantiomeric excesses (up to 91%) being obtained in the presence of water. PMID:25742867

  10. Noncovalent immobilization of ionic-tagged box-Cu(OAc)2 complex and its application in asymmetric Henry reaction.

    PubMed

    Li, Zhi-Huai; Zhou, Zhi-Ming; Hao, Xiao-Yan; Zhang, Jun; Dong, Xiao; Liu, Ying-Qiang

    2012-12-01

    Immobilized Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding by SBA-15 was applied to asymmetric Henry reaction, and good enantioselectivities were obtained (up to 83% ee) between 2-methoxybenzaldehyde and CH(3)NO(2) in isopropyl alcohol (iPrOH). The catalyst could be reused seven times without any obvious loss in enantioselectivity. For the first time, this facile and clean immobilization method is applied to the use of bis(oxazolines) complexes. PMID:23001750

  11. Henry's law constant of N,N-dichloromethylamine: application to the contamination of the atmosphere of indoor swimming pools.

    PubMed

    Cimetiere, Nicolas; De Laat, Joseph

    2009-10-01

    The volatility of N,N-dichloromethylamine (DCMA), a disinfection by-product formed during chlorination of swimming pool water, has been investigated in the present work. The Henry's law constants for DCMA were experimentally determined at five temperatures (5, 15, 25, 35 and 45 degrees C) using the single equilibrium technique. The volumic ratio between the gas and the water phases in the headspace vessels ranged from 1 to 60 and the initial concentration of DCMA in the aqueous solutions was approximately 2mM. The values obtained for the dimensionless Henry's law constant varied from 0.047 at 5 degrees C to 0.312 at 45 degrees C. The temperature dependence of the Henry's law constants followed the van't Hoff equation. Trace levels of DCMA (16-70 microg m(-3)) were detected in the atmosphere of an indoor swimming pool whereas the concentrations of DCMA in water pools were in the range 8.8-15 microg L(-1). PMID:19700184

  12. Genetic comparison of the head of Henri IV and the presumptive blood from Louis XVI (both Kings of France).

    PubMed

    Charlier, Philippe; Olalde, Iñigo; Solé, Neus; Ramírez, Oscar; Babelon, Jean-Pierre; Galland, Bruno; Calafell, Francesc; Lalueza-Fox, Carles

    2013-03-10

    A mummified head was identified in 2010 as belonging to Henri IV, King of France. A putative blood sample from the King Louis XVI preserved into a pyrographically decorated gourd was analyzed in 2011. Both kings are in a direct male-line descent, separated by seven generations. We have retrieved the hypervariable region 1 of the mitochondrial DNA as well as a partial Y-chromosome profile from Henri IV. Five STR loci match the alleles found in Louis XVI, while another locus shows an allele that is just one mutation step apart. Taking into consideration that the partial Y-chromosome profile is extremely rare in modern human databases, we concluded that both males could be paternally related. The likelihood ratio of the two samples belonging to males separated by seven generations (as opposed to unrelated males) was estimated as 246.3, with a 95% confidence interval between 44.2 and 9729. Historically speaking, this forensic DNA data would confirm the identity of the previous Louis XVI sample, and give another positive argument for the authenticity of the head of Henri IV. PMID:23283403

  13. The death of Henry II, King of France (1519-1559). From myth to medical and historical fact.

    PubMed

    Zanello, Marc; Charlier, Philippe; Corns, Robert; Devaux, Bertrand; Berche, Patrick; Pallud, Johan

    2015-01-01

    On 30 June 1559, Henry II, King of France, was mortally wounded in the head by a lance during a jousting match. Despite the best efforts of his physicians, Ambroise Paré and Andreas Vesalius, King Henry died 11 days later. This article, based on previously unpublished evidence, aims at examining the historical account of his death against modern medical practice to establish the probable cause of the king's death. We also discuss what treatments the doctors in the sixteenth century may have had to offer. Historical accounts of the joust provide details of the incident including the position of the visor of the king's helmet. Descriptions of the wood fragments removed from the right orbit by Italian observers and a new translation of the autopsy by Andreas Vesalius allow an accurate description of the actual injury. Our research counters previous theories and concludes that Henry II was the victim of craniofacial trauma involving the right eye and that he died from periorbital cellulitis caused by a retained foreign body in the wound, complicated by a left interhemispheric empyema preceded by a traumatic interhemispheric haematoma. It would appear that the royal court doctors advocated a wait-and-see strategy, with little actual input from Ambroise Paré or Andreas Vesalius, with a clearly regrettable outcome. PMID:25421951

  14. The pleasures and perils of prophetic advocacy: Henry E. Sigerist and the politics of medical reform.

    PubMed Central

    Fee, E

    1996-01-01

    Henry E. Sigerist, an internationally renowned medical historian, played a surprisingly important and visible role in American medical politics in the 1930s and 1940s. Born in Paris of Swiss parents, he was professor in Leipzig, Germany, before coming to the United States in 1932 as professor of the history of medicine at Johns Hopkins University. Once in America. Sigerist became deeply involved in medical politics and the campaign for national health insurance. He argued that individualized medical practice was outdated and should gradually be superseded by state-run and state-financed health services. National health insurance was but one step in this historical progression. Sigerist thus lent the weight of history itself to the cause of medical care reform. The charming and erudite Sigerist was welcomed by the leaders of academic medicine in America. Soon, he emerged as a spokesman of the left wing of the medical profession, an effective and popular speaker and an impassioned advocate of socialized medicine. This paper traces Sigerist's political ideas and activities, and his contributions toward medical care reform in the United States. Images p1639-a p1642-a PMID:8916536

  15. Effects of temperature, pH, and ionic strength on the Henry's law constant of triethylamine

    NASA Astrophysics Data System (ADS)

    Leng, Chun-Bo; Roberts, Jason E.; Zeng, Guang; Zhang, Yun-Hong; Liu, Yong

    2015-05-01

    The Henry's law constants (KH) of triethylamine (TEA) in pure water and in 1-octanol were measured for the temperatures pertinent to the lower troposphere (278-298 K) using a bubble column system coupled to a Fourier transform infrared spectrometer. The KH values of TEA in water and 1-octanol at 298 K are 5.75 ± 0.86 mol L-1 atm-1 and 115.62 ± 5.78 mol L-1 atm-1. The KH values display strong dependence on temperature, pH, and ionic strength. The characteristic times for TEA to establish an equilibrium between gas and droplet with a size of 5.6 µm are ~33 s (298 K, pH = 5.6); ~8.9 × 102 s (278 K, pH = 5.6); ~1.3 × 103 s (298 K, pH = 4.0); and 3.6 × 104 s (278 K, pH = 4.0). The evaluation of TEA partitioning between gas phase and condensed phase implies that TEA predominantly resides in rainwater, and TEA loss to organic aerosol is negligible.

  16. Mineral resources of the Henry's Lake Wilderness Study Area, Fremont County, Idaho

    SciTech Connect

    Tysdal, R.G.; Kulik, D.M.; Peters, T.J.

    1988-06-10

    A mineral-resource survey of the 350-acre Henry's Lake Wilderness Study Area (ID-035-077) was made in 1986-87. No identified resources (known) or currently active claims exist within or adjacent to the wilderness study area. There is potential for several types of undiscovered mineral resources within the study area. The southwestern part of the wilderness study area, along the Madison Range fault, is rated as having a moderate energy-resource potential for geothermal water; the remainder of the study area has a low potential for resources of this commodity. A small outcrop of marble in the southernmost part of the study area has a low mineral-resource potential for talc; for talc in marble possibly concealed beneath the study area the mineral-resource potential is rated as unknown. The study area has a low mineral-resource potential for iron in hematite-mineralized amphibolite gneiss, and for gold, silver, and uranium. The area has no mineral-resource potential for phosphate, because the host strata have been eroded; and no resource potential for oil and gas.

  17. Water in sand and gravel deposits in McHenry County, Illinois

    SciTech Connect

    Nicholas, J.R.; Krohelski, J.T.

    1984-01-01

    Two general types of sand and gravel occur in McHenry County - unconfined aquifers, which are at or near the land surface, and semiconfined aquifers, which are overlain by one or more till members. Water levels in both types of aquifers are mapped from measurements made in the spring of 1979. The water-level configuration roughly parallels the land surface. Moraines and other topographically high features coincide with ground-water divides of local flow systems. Flow paths from divides to low-lands are relatively short - a few miles or less. Recharge predominates in uplands, whereas discharge predominates in lowlands. Water levels change seasonally in response to variations in recharge and discharge conditions. The highest water levels occur during spring and decline during the rest of the year. Ground water is of the calcium magnesium bicarbonate type and is of acceptable quality for most uses. However, for domestic and some industrial uses, treatment may be required to reduce hardness and to remove iron. Hardness ranged from 130 to 600 milligrams per liter as calcium carbonate, and dissolved iron concentrations ranges from less than 10 to 6200 micrograms per liter. The specific conductance of ground water ranged from 260 to 1170 micromhos per centimeter. Specific conductance exceeded 1000 micromhos per centimeter near Huntley and Hebron. Nitrate concentration was generally less than 0.68 milligrams per liter. 22 refs., 9 figs., 3 tabs.

  18. Henry Cavendish (1731-1810): hydrogen, carbon dioxide, water, and weighing the world.

    PubMed

    West, John B

    2014-07-01

    Henry Cavendish (1731-1810) was an outstanding chemist and physicist. Although he was not a major figure in the history of respiratory physiology he made important discoveries concerning hydrogen, carbon dioxide, atmospheric air, and water. Hydrogen had been prepared earlier by Boyle but its properties had not been recognized; Cavendish described these in detail, including the density of the gas. Carbon dioxide had also previously been studied by Black, but Cavendish clarified its properties and measured its density. He was the first person to accurately analyze atmospheric air and reported an oxygen concentration very close to the currently accepted value. When he removed all the oxygen and nitrogen from an air sample, he found that there was a residual portion of about 0.8% that he could not characterize. Later this was shown to be argon. He produced large amounts of water by burning hydrogen in oxygen and recognized that these were its only constituents. Cavendish also worked on electricity and heat. However, his main contribution outside chemistry was an audacious experiment to measure the density of the earth, which he referred to as "weighing the world." This involved determining the gravitational attraction between lead spheres in a specially constructed building. Although this was a simple experiment in principle, there were numerous complexities that he overcame with meticulous attention to experimental details. His result was very close to the modern accepted value. The Cavendish Experiment, as it is called, assures his place in the history of science. PMID:24793169

  19. Health-hazard evaluation report HETA 87-288-1828, Henry Ford High School, Detroit, Michigan

    SciTech Connect

    Crandall, M.S.

    1987-08-01

    In response to a request from teachers in the Henry Ford High School (SIC-8211) located in Detroit, Michigan, a study was made of possible malfunctions of polychlorinated biphenyl (PCB)-containing fluorescent-light ballasts which were suspected of being causally related to increased occurrences of respiratory symptoms, sore throats, and headaches. Surface wipe samples and air samples were analyzed in four classrooms where complaints had originated and in three reference rooms where no symptoms had been reported. No levels of PCB air concentrations were found exceeding 0.1 microgram/cubic meter (microg/m/sup 3/) in any reference room. In three of four index rooms, PCB concentrations were recorded at 0.2, 0.3, and 0.4 microg/m/sup 3/, which were below the NIOSH recommended exposure level (1microg/m3 time weighted average). Surface-wipe samples from student and teacher desk tops averaged 1.3 micrograms per square meter (microg/m/sup 2/), with a maximum of 2.4microg/m/sup 2/. On low contact surfaces, PCB concentrations ranged from 1.6 to 9.2microg/m/sup 2/.

  20. Dr Walter Henry Anderson (1870-1937) and the mission hospital at Safed, Palestine.

    PubMed

    Stokes, Gordon S

    2013-02-01

    Walter Henry Anderson, a brewer's clerk in Burton-upon-Trent, became a missionary doctor, supported by a society promoting welfare and evangelism in Jewish communities abroad. His family background was rich in pastoral ministry at home and adventure abroad. Arguably, this background played a part in his decision to serve the Jews of Safed. His life in Palestine entailed much enterprise and hardship as he raised a family, fought disease and set up a mission hospital serving not only the Jewish community but persons of all faiths. His years in Palestine, from 1894 to 1915, were times of peace in the Middle East before the turmoil unleashed by the Great War. Jews from the Diaspora were gaining an increasing foothold in Palestine, their 'Promised Land'. Themes of that era - the rise of Zionism, confrontation between Judaism and evangelical Christianity, conflict between immigrant Jew and Palestinian Arab and the remarkable travels of Lawrence of Arabia were interwoven with the lives of Dr Anderson and his family. PMID:23610230

  1. Henry James's "The Ambassadors": the promise to lonely adolescents that there will be a future.

    PubMed

    Young, Barbara

    2009-01-01

    Adolescence is a lonely time for all of us, as we shift our emotional attachment from our parents to our own autonomous selves and to those people outside our families who will be essential to our emotional growth. Perhaps because Henry James's novel The Ambassadors (1903) deals so masterfully with this subject, it promised the author that there would be a future beyond her senior year in college. The novel has two protagonists: a young American who has arrived at his maturity in Paris, and a middle-aged man who lives in a gray, ungratifying world because he has missed the opportunity to complete his unfolding into an independent sexual being. For background material, James called upon two periods from his own life: his unhappy adolescence, which he overcame by making a life for himself as a writer in England, and his continuing emotional growth at the time he wrote the novel, at the age of 56. The author deals with both adolescence itself and with the ways in which we use the coping skills and creative strengths we developed in adolescence to enrich our lives and sustain ourselves at times of crisis. PMID:19684376

  2. Henry's Law vaporization studies and thermodynamics of einsteinium-253 metal dissolved in ytterbium

    SciTech Connect

    Kleinschmidt, P.D.; Ward, J.W.; Matlack, G.M.; Haire, R.G.

    1984-07-01

    The cohesive energy of metallic einsteinium determines whether einsteinium is a trivalent or divalent metal. The enthalpy of sublimation, a measure of the cohesive energy, is calculated from the partial pressures of einsteinium over an alloy. The partial pressure of /sup 253/Es has been measured over the range 470--870 K, using combined target and mass spectrometric Knudsen effusion techniques. An alloy was prepared with einsteinium dissolved in a ytterbium solvent to produce a very dilute solution. Partial pressure measurements on the alloy were amenable to the experimental technique and a data analysis using a Henry's law treatment of the data. Vapor pressure data are combined with an estimated crystal entropy S/sup 0//sub 298/ and ..delta..C/sup 0//sub p/ for ytterbium, to produce enthalpy, entropy, and free energy functions from 298 to 1300 K. The vapor pressure of einsteinium in a dilute einsteinium--ytterbium alloy is described by the equation log P(atm) = -(6815 +- 216)/T+2.576 +- 0.337, from which we calculate for the enthalpy of sublimation of pure einsteinium ..delta..H/sup 0//sub 298/ (second law) = 31.76 kcal/mol. The value of the enthalpy of sublimation is consistent with the conclusion that Es is a divalent metal.

  3. Comparing and interpreting three-dimensional fabric results, Henry Mountains porphyry, Utah, U.S.A.

    NASA Astrophysics Data System (ADS)

    Horsman, E.; Ketcham, R. A.

    2006-12-01

    We compare and interpret results of several rock fabric analysis techniques, as applied to samples of plagioclase-hornblende porphyry from a well-exposed small intrusion in the Henry Mountains of southern Utah, U.S.A. The fabric analysis techniques considered include field measurements of phenocryst shape-preferred orientation, anisotropy of magnetic susceptibility, anisotropy of anhysteric remanent magnetization, high- resolution X-ray computed tomography, and three-dimensional shape-preferred orientation calculated from two- dimensional image analysis. The exceptional exposure of the studied intrusion allows us to confidently infer magma flow kinematics and to estimate the minimum amount of shear strain accommodated by the magma during emplacement. Our study therefore provides an important contrast to most studies, in which flow kinematics and magmatic strain are inferred from rock fabric in incompletely exposed intrusions. We find that observed fabric orientations often closely mimic local intrusion geometry, making it difficult to infer general magmatic flow kinematics from fabric near contacts. At each analysis location, orientation results from each technique generally agree but fabric shape and magnitude parameters vary widely between techniques. Fabric shape may therefore not provide useful information about flow kinematics (e.g. constrictional vs. flattening flow). Similarly, fabric magnitudes plateau at moderate values and do not provide a useful strain gauge. Because each technique provides unique information, it is invariably beneficial to use more than one fabric analysis technique. Failure to check results from one technique against those from another can results in misinterpretation of intrusion flow kinematics.

  4. [The turn of the screw: complex visual hallucinations in the Henry James' novel].

    PubMed

    Alvaro, L C; Martín Del Burgo, A

    2002-03-01

    The turn of the screw is one of the most celebrated stories by Henry James. It is also a top writing within the so-called fantastic literature, whose narrative strength comes from the intermittent visions suffered by the main character. The vividness and dramatic content that represent the firstly unidentified human figures, that moreover recur as brief, stereotyped and fragmentary images, are constitutive of complex visual hallucinations. These characteristics, alongside acute premonitory symptoms such as emotional changes (fear, anxiety) or altered thinking (forced, "dejà vu", "jamais vu"), and the final altered awareness or loss of consciousness, allow us to infer an epileptic nature of the ten episodes described. Postictal psychosis, that follows a lucid interval and may last up to the several weeks encompassed by the story, would account for the paranoia featured, in the setting of a temporal lobe epilepsy. The accurate descriptions prompted us to search for autobiographical, scientific or literary influences: The alcoholism and visual hallucinations suffered by his father, the knowledge on hallucinations provided by his brother Williams on his paramount and former The Principles of Psychology, and an early devotion to Poe's writings, an epileptic himself with excellent descriptions of seizures in his writings, might have enabled the author to perform his story with such a hallmark of neurological details. PMID:11927104

  5. New Quartz Oscillator Switching Method for Nano-Henry Range Inductance Measurements

    PubMed Central

    Matko, Vojko; Jezernik, Karel

    2012-01-01

    This article introduces a new method for nano-Henry inductance measurements at the frequency of 4.999 MHz with a single quartz crystal oscillating in the switching oscillating circuit. The real novelty of this method, however, lies in a considerable reduction of the temperature influence of AT-cut crystal frequency change in the temperature range between 0 °C and 50 °C through a switching method which compensates for the crystal’s natural temperature characteristics. This allows for the compensation of any influences on the crystal such as the compensation of the non-linear temperature characteristics and the ageing of both the crystal and other oscillating circuit elements, as well as the reduction of the output frequency measurement errors with the help of an additional reference frequency. The experimental results show that the switching method greatly improves the measurement of small inductance changes in the range between μH and nH, allowing as a result high-precision measurements (∼0.35 fH) in this range. PMID:22736995

  6. Henry Knowles Beecher, Jay Katz, and the Transformation of Research with Human Beings.

    PubMed

    Capron, Alexander Morgan

    2016-01-01

    The modern history of experimentation with human beings is notable for its ethical lacunae, when even the clearest directives fail to prevent violations of subjects' rights and welfare. One such lacuna occurred during the 25 years between 1947, when the Nuremberg Code was articulated in the judgment passed on the men who had performed medical experiments in the Nazi concentration camps, and 1972, when the revelation of the 40-year-long Tuskegee Syphilis Study shocked the public and pushed Congress to adopt legislation that eventually transformed the governance of human subjects research. The work that Henry Beecher and Jay Katz did on the ethics of human experimentation beginning in 1964-which was mutually supportive but also divergent in its premises and prescriptions-played a prominent role in the policy-making processes. Beecher, whose detailed disclosure of the ethical lapses of leading researchers in his renowned 1966 New England Journal of Medicine article initiated the policy reform process, proved less influential in shaping those reforms than Katz. Ultimately, Beecher was one of the last and best exemplars of "medical ethics," while Katz-in his service on the Tuskegee Syphilis Study Ad Hoc Advisory Panel and in his testimony before, and work with, the Senate Health subcommittee-was an early practitioner of bioethics, a field in which the rules are not all written and applied by the medical profession but arise through a messier process involving outsiders and formal regulatory decisions. PMID:27499485

  7. Ernest Henry Starling (1866-1927) on the glomerular and tubular functions of the kidney.

    PubMed

    Fine, Leon G

    2014-01-01

    Around the turn of the 20th century, Ernest Henry Starling (1866-1927) made many fundamental contributions to the understanding of human physiology. With a deep interest in how fluid balance is regulated, he naturally turned to explore the intricacies of kidney function. Early in his career he focused upon the process of glomerular filtration and was able to substantiate the view of Carl Ludwig that this process can be explained entirely upon the basis of hydrostatic and oncotic pressure gradients across the glomerular capillary wall and that the process can be regulated by alterations in the tone of the afferent and efferent arterioles. To explore renal tubular function he employed a heart-lung-kidney model in the dog and was able to infer that certain substances are reabsorbed by the tubules (e.g. sodium chloride) and certain by tubular secretion (e.g. uric acid, indigo carmine dye). By temporarily blocking tubular function using hydrocyanic acid he was able to conclude that secreted substances must be taken up on the peritubular side of the cell and concentrated within the cell to drive the secretory process. Finally, he was able to appreciate that the kidney is an organ which is regulated according to the needs of the organism and that the processes of glomerular filtration, tubular secretion and reabsorption are all subject to regulatory influences, which have evolved to conserve the normal chemical composition of the cells and fluids of the body. PMID:24970544

  8. Interviews on Freud and Jung with Henry A. Murray in 1965.

    PubMed

    Roazen, Paul

    2003-02-01

    Henry Murray became one of the legendary figures in the history of American psychology. Not only was he a leading pioneer in the field of personality theory, but he created (with Christiana Morgan) the Thematic Apperception test. He also took a leading role in making psychological profiles for the American government's Office of Strategic Services during World War II. For years Murray headed the Harvard Psychological Clinic, and also worked on the writings of Herman Melville for almost half of his long life. Murray took a wholly independent path from Freudian and Jungian organizations, yet his memories of contact with Freud and Jung are worth recording. These interviews with Murray were conducted in 1965. To take only one example, the circumstances of Jung's getting his honorary degree from Harvard in 1936 are elucidated, as well as Freud's inquiry to Murray about why he himself had missed out on that occasion. A postscript to the interview, illustrating Murray's capacities as a writer, concerns his spirited response to the Princeton philosopher Walter Kaufmann's inquiry about Roazen's account of the 1936 honorary degree in his 1975 Freud and His Followers. PMID:12664714

  9. 7,3',4'-Trihydroxyisoflavone inhibits epidermal growth factor-induced proliferation and transformation of JB6 P+ mouse epidermal cells by suppressing cyclin-dependent kinases and phosphatidylinositol 3-kinase.

    PubMed

    Lee, Dong Eun; Lee, Ki Won; Song, Nu Ry; Seo, Sang Kwon; Heo, Yong-Seok; Kang, Nam Joo; Bode, Ann M; Lee, Hyong Joo; Dong, Zigang

    2010-07-01

    Numerous in vitro and in vivo studies have shown that isoflavones exhibit anti-proliferative activity against epidermal growth factor (EGF) receptor-positive malignancies of the breast, colon, skin, and prostate. 7,3',4'-Trihydroxyisoflavone (7,3',4'-THIF) is one of the metabolites of daidzein, a well known soy isoflavone, but its chemopreventive activity and the underlying molecular mechanisms are poorly understood. In this study, 7,3',4'-THIF prevented EGF-induced neoplastic transformation and proliferation of JB6 P+ mouse epidermal cells. It significantly blocked cell cycle progression of EGF-stimulated cells at the G(1) phase. As shown by Western blot, 7,3',4'-THIF suppressed the phosphorylation of retinoblastoma protein at Ser-795 and Ser-807/Ser-811, which are the specific sites of phosphorylation by cyclin-dependent kinase (CDK) 4. It also inhibited the expression of G(1) phase-regulatory proteins, including cyclin D1, CDK4, cyclin E, and CDK2. In addition to regulating the expression of cell cycle-regulatory proteins, 7,3',4'-THIF bound to CDK4 and CDK2 and strongly inhibited their kinase activities. It also bound to phosphatidylinositol 3-kinase (PI3K), strongly inhibiting its kinase activity and thereby suppressing the Akt/GSK-3beta/AP-1 pathway and subsequently attenuating the expression of cyclin D1. Collectively, these results suggest that CDKs and PI3K are the primary molecular targets of 7,3',4'-THIF in the suppression of EGF-induced cell proliferation. These insights into the biological actions of 7,3',4'-THIF provide a molecular basis for the possible development of new chemoprotective agents. PMID:20444693

  10. J.B. Nash Lecture Series.

    ERIC Educational Resources Information Center

    Gray, Howard R., Comp.; And Others

    The following lectures are presented in this publication: (1) "The Dynamics of Recreation" (Betty Van der Smissen); (2) "Recreation Prospects" (Edith L. Ball); (3) "A View of the Past--A Bridge to the Future" (Allen V. Sapora); (4) "Coming to Grips with the New Leisure" (Richard G. Kraus); (5) "The Mild Blue Yonder--Changing Lifestyles and…

  11. Apatite (U-Th)/He Thermochronology from the Henry Mountains Laccolith Complex, Southeastern Utah, USA

    NASA Astrophysics Data System (ADS)

    Murray, K. E.; Reiners, P. W.

    2010-12-01

    The Henry Mountains are one of several laccolith-cored ranges on the Colorado Plateau that clearly preserve contact and structural relationships between Oligocene intrusions and the thick (~2.5 km) late Paleozoic and Mesozoic sedimentary package, which locally upwarped to accommodate laccolith emplacement. Here, we use the Henrys not only to add to the understanding of the thermal and geomorphic evolution of the Colorado Plateau, but also as a laboratory to explore possible links between pluton emplacement, localized rock uplift and exhumation. Published hornblende 40Ar/39Ar ages indicate intrusion between 31 and 23 Ma. The range comprises five main peaks (Ellen, Pennell, Hillers, Ellsworth and Holmes), each cored by a central laccolith and satellite intrusions emplaced at varying stratigraphic levels throughout the range. Regional stratigraphic correlation suggests the Mt. Hillers laccolith, which intruded the Permain Cutler Group, was at the time of emplacement overlain by at least the entire ~2.5 km Permian-Cretaceous sedimentary package. On the south side of Mt. Hillers these country rocks dip vertically, folded against the side of the main laccolith body and ramped at least one kilometer above local baselevel for these units; this is the classic example of localized uplift as a primary accommodation mechanism for magma emplacement, and at such shallow depths this roof lifting was surely itself accommodated by surface uplift and probably erosion. Despite these intriguing uplift indicators, apatite (U-Th)/He (AHe) dates from a 600 m vertical profile in these country rock sandstones and interbedded porphyry sills are nearly all 10-14 Ma, significantly younger than the age of emplacement and localized uplift. These data are consistent with intrusion at depths at least as deep as the AHe partial retention zone (PRZ; >~50-70°C, >~2-3 km), which agrees with stratigraphic estimates of emplacement depth. Also consistent with these data is cooling and exhumation of

  12. Effect of Henry's law constant and operating parameters on vacuum-assisted headspace solid phase microextraction.

    PubMed

    Psillakis, Elefteria; Mousouraki, Antonia; Yiantzi, Evangelia; Kalogerakis, Nicolas

    2012-06-29

    Nonequilibrium headspace solid-phase microextraction (HSSPME) sampling under vacuum conditions may dramatically improve extraction kinetics compared to regular HSSPME at room temperature. This paper investigates the effects of organic analyte properties and sampling parameters (headspace volume and sample agitation) on vacuum-assisted HSSPME (Vac-HSSPME). It was found that at room temperature, acceleration effects on extraction rates induced by reducing the total pressure of the sample container are important for those compounds where the Henry's law constant, K(H), is close or below the reported threshold values for low K(H) solutes. For these compounds evaporation rate is controlled by mass transfer resistance in the thin gas-film adjacent to the gas/sample interface and reducing the total pressure will increase evaporation rates and result in a faster overall extraction process. Conversely, for analytes with an intermediate K(H) value, Vac-HSSPME is not expected to improve extraction rates compared to regular HSSPME given that mass transfer resistance in the liquid-film becomes important. In accordance with the theory, at equilibrium, the amount of analyte extracted by the SPME fiber is not affected by the pressure conditions inside the sample container. Furthermore, Vac-HSSPME extraction kinetics for low K(H) analytes were marginally affected by the tested change in headspace volume as evaporation rates dramatically increase under reduced pressure conditions and the sample responds much faster to the concentration drops in the headspace when compared to regular HSSPME. At equilibrium however, increasing the headspace volume may result in a loss of sensitivity for Vac-HSSPME similar to that observed for regular HSSPME. As expected, stirring the liquid sample was found to improve Vac-HSSPME. Finally, the method yielded a linearity of 0.998 and detection limits in the ppt level. The precision varied between 1.8% and 8.4%. PMID:22621889

  13. Flexure and faulting of sedimentary host rocks during growth of igneous domes, Henry Mountains, Utah

    USGS Publications Warehouse

    Jackson, M.D.; Pollard, D.D.

    1990-01-01

    A sequence of sedimentary rocks about 4 km thick was bent, stretched and uplifted during the growth of three igneous domes in the southern Henry Mountains. Mount Holmes, Mount Ellsworth and Mount Hillers are all about 12 km in diameter, but the amplitudes of their domes are about 1.2, 1.85 and 3.0 km, respectively. These mountains record successive stages in the inflation of near-surface diorite intrusions that are probably laccolithic in origin. The host rocks deformed along networks of outcrop-scale faults, or deformation bands, marked by crushed grains, consolidation of the porous sandstone and small displacements of sedimentary beds. Zones of deformation bands oriented parallel to the beds and formation contacts subdivided the overburden into thin mechanical layers that slipped over one another during doming. Measurements of outcrop-scale fault populations at the three mountains reveal a network of faults that strikes at high angles to sedimentary beds which themselves strike tangentially about the domes. These faults have normal and reverse components of slip that accommodated bending and stretching strains within the strata. An early stage of this deformation is displayed at Mount Holmes, where states of stress computed from three fault samples correlate with the theoretical distribution of stresses resulting from bending of thin, circular, elastic plates. Field observations and analysis of frictional driving stresses acting on horizontal planes above an opening-mode dislocation, as well as the paleostress analysis of faulting, indicate that bedding-plane slip and layer flexure were important components of the early deformation. As the amplitude of doming increased, radial and circumferential stretching of the strata and rotation of the older faults in the steepening limbs of the domes increased the complexity of the fault patterns. Steeply-dipping, map-scale faults with dip-slip displacements indicate a late-stage jostling of major blocks over the central

  14. Dick Crane's California Days

    NASA Astrophysics Data System (ADS)

    Holbrow, Charles H.

    2011-03-01

    Horace Richard Crane (1907-2007) was born and educated in California. His childhood was full of activities that helped him become an outstanding experimental physicist. As a graduate student at the California Institute of Technology (1930-1934), he had the good fortune to work with Charles C. Lauritsen (1892-1968) just as he introduced accelerator-based nuclear physics to Caltech. They shared the euphoric excitement of opening up a new field with simple, ingenious apparatus and experiments. This work prepared Crane for his career at the University of Michigan (1935-1973) where in the 1950s, after making the first measurement of the electron's magnetic moment, he devised the g-2 technique and made the first measurement of the anomaly in the electron's magnetic moment. A man of direct, almost laconic style, he made lasting contributions to the exposition of physics to the general public and to its teaching in high schools, community colleges, four-year colleges, and universities. I tell how he became a physicist and describe some of his early achievements.

  15. Extended phase space thermodynamics and P- V criticality: Brans-Dicke-Born-Infeld vs. Einstein-Born-Infeld-dilaton black holes

    NASA Astrophysics Data System (ADS)

    Hendi, S. H.; Tad, R. Moradi; Armanfard, Z.; Talezadeh, M. S.

    2016-05-01

    Motivated by a thermodynamic analogy of black holes and Van der Waals liquid/gas systems, in this paper, we study P- V criticality of both dilatonic Born-Infeld black holes and their conformal solutions, Brans-Dicke-Born-Infeld solutions. Due to the conformal constraint, we have to neglect the old Lagrangian of dilatonic Born-Infeld theory and its black hole solutions, and introduce a new one. We obtain spherically symmetric nonlinearly charged black hole solutions in both Einstein and Jordan frames and then we calculate the related conserved and thermodynamic quantities. After that, we extend the phase space by considering the proportionality of the cosmological constant and thermodynamical pressure. We obtain critical values of the thermodynamic coordinates through numerical methods and plot the relevant P- V and G- T diagrams. Investigation of the mentioned diagrams helps us to study the thermodynamical phase transition. We also analyze the effects of varying different parameters on the phase transition of black holes.

  16. Femtosecond time resolved coherent anti-Stokes Raman spectroscopy of H(2)-N(2) mixtures in the Dicke regime: Experiments and modeling of velocity effects.

    PubMed

    Tran, H; Chaussard, F; Le Cong, N; Lavorel, B; Faucher, O; Joubert, P

    2009-11-01

    In this paper, we present measurements and modeling of femtosecond time resolved coherent anti-Stokes Raman spectroscopy (CARS) signal in H(2)-N(2) mixtures at low densities. Three approaches have been used to model the CARS response. The first is the usual sum of Voigt profiles. In the second approach, the speed dependent Voigt profile is used. In the last approach, a model of the temporal CARS signal is developed, which takes into account the velocity changes induced by collisions and the speed dependence of the collisional parameters. The velocity changes are modeled using the Keilson and Storer memory function; the radiator speed dependences of the collisional parameters are determined from their temperature dependences. The results obtained are consistent with previous studies in the frequency domain, showing that the changes of the velocity have important effects for the H(2)/N(2) system in the Dicke narrowing density regime. PMID:19895015

  17. Femtosecond time resolved coherent anti-Stokes Raman spectroscopy of H2-N2 mixtures in the Dicke regime: Experiments and modeling of velocity effects

    NASA Astrophysics Data System (ADS)

    Tran, H.; Chaussard, F.; Le Cong, N.; Lavorel, B.; Faucher, O.; Joubert, P.

    2009-11-01

    In this paper, we present measurements and modeling of femtosecond time resolved coherent anti-Stokes Raman spectroscopy (CARS) signal in H2-N2 mixtures at low densities. Three approaches have been used to model the CARS response. The first is the usual sum of Voigt profiles. In the second approach, the speed dependent Voigt profile is used. In the last approach, a model of the temporal CARS signal is developed, which takes into account the velocity changes induced by collisions and the speed dependence of the collisional parameters. The velocity changes are modeled using the Keilson and Storer memory function; the radiator speed dependences of the collisional parameters are determined from their temperature dependences. The results obtained are consistent with previous studies in the frequency domain, showing that the changes of the velocity have important effects for the H2/N2 system in the Dicke narrowing density regime.

  18. Methods to recover the narrow Dicke sub-Doppler feature in evacuated wall-coated cells without restrictions on cell size

    NASA Technical Reports Server (NTRS)

    Robinson, H. G.

    1984-01-01

    The hyperfine resonance observed in evacuated wall-coated cells with dimensions lambda/2 (lambda is the hyperfine resonance wavelength) consists of a narrow Dicke sub-Doppler linewidth feature, the spike, superimposed on a broad pedestal. The hydrogen maser provides a classic example of this lineshape. As cell size is increased, an effect unique to evacuated wall-coated cells occurs. Certain combinations of microwave field distribution and cell size result in a lineshape having a pedestal with a small spike feature or only the broad pedestal with no spike. Such conditions are not appropriate for atomic frequency standard applications. The cause of the evacuated wall-coated cell lineshape is reviewed and methods to recover the narrow spike feature without restrictions on cell size is discussed. One example is a cell with dimensions having equal volumes of exposure to opposite phases of the microwave magnetic field.

  19. Enantioselective synthesis of bicylco[3.2.1]octan-8-ones using a tandem Michael-Henry reaction

    PubMed Central

    Ding, Derong; Zhao, Cong-Gui; Guo, Qunsheng; Arman, Hadi

    2010-01-01

    Bicyclo[3.2.1]octan-8-ones have been prepared from a tandem Michael-Henry reaction between cyclohexane-1,2-diones and nitroalkenes using a quinine-derived thiourea as the catalyst. Although four stereogenic centers were created during the reaction, only two diastereomers were obtained in good diastereoselectivity and high enantioselectivity (92-99% ee). When 3-methylcyclohexane-1,2-dione (R1 = Me) was used as the substrate, only the regioisomeric product of the corresponding thermodynamic enolate was obtained. PMID:20532185

  20. Constraining emplacement geometry of large igneous dome growth: new evidence from Mt. Ellsworth, Henry Mountains, UT

    NASA Astrophysics Data System (ADS)

    Nushart, N.; Wetmore, P. H.

    2013-12-01

    Surface displacements resulting from upper-crustal intrusions are a paramount concern for communities and facilities located near active volcanic areas (e.g. Campi Flegrei, Yucca Mtn.). Study of active intrusions is limited to remote observations through geophysical/geodetic methods. While surface displacements due to intrusions can be measured easily, intrusion shapes and depths are often based on simplified assumptions (e.g. spheres and ellipsoids). These models benefit from data constraining both the geometries of the individual intrusions, and the kinematics and mechanics of deformation within the overlying strata. Mount Ellsworth, a sub-volcanic intrusion within the Henry Mtns., is an ideal natural laboratory for the study of near surface intrusions because it was emplaced into relatively flat-lying stratigraphy ~24 Ma when the stress field was largely isotropic. Previous studies of Mt. Ellsworth (i.e. Hunt, 1953; Jackson and Pollard, 1988) present competing emplacement models (e.g. single vs. multiple batch construction) based on slightly different geologic maps. Through a combination of 1:5000 scale field mapping and profile-oriented gravity study, we have produced new detailed geologic maps and cross sections of Mt. Ellsworth. These were intended to be used to test emplacement models. However, the results suggest that the initial goals set out for this study could not be realized due to the lack of exposed intrusion, the relatively small dimensions of the exposed sills, and the largely uncapped nature of the mountain. Mapping results demonstrate, however, that some of the assumptions of the models theorized by previous researchers were inappropriately applied to Mt. Ellsworth. These assumptions include the thickness and separation of stratigraphic units, the size and distribution of sills and smaller intrusions, structural attitudes of beds and sills, and the presence of exposure of the main body of the intrusion. Based on balanced cross sections