WorldWideScience

Sample records for hugh van horn

  1. Hugh Maaskant : architect van de vooruitgang

    NARCIS (Netherlands)

    Provoost, M.

    2003-01-01

    Hugh Maaskant (1907–1977) is best known as the architect who made the biggest mark on the post-war reconstruction of Rotterdam with such buildings as the Groothandelsgebouw, the Hilton Hotel and the Lijnbaan flats. Beginning his career in 1937 as the partner of Willem van Tijen, Maaskant embarked on

  2. Implementation of Linus Programme Based on the Model of Van Meter and Van Horn

    Science.gov (United States)

    Sani, Nazariyah bt; Idris, Abdul Rahman

    2013-01-01

    The purpose of this study is to identify the understanding of school leaders on the implementation of LINUS programme that based on the features contained in the Implementation Model of Van Meter and Van Horn (1975). The study was carried out in the form of qualitative method and particularly, the multiple case studies that were conducted in four…

  3. magnetic horn

    CERN Document Server

    Neutrinos and antineutrinos are ideal for probing the weak force because it is effectively the only force they feel. How were they made? Protons fired into a metal target produce a tangle of secondary particles. A magnetic horn like this one, invented by Simon Van der Meer, selected pions and focused them into a sharp beam. Pions decay into muons and neutrinos or antineutrinos. The muons were stopped in a wall of 3000 tons of iron and 1000 tons of concrete, leaving the neutrinos or antineutrinos to reach the Gargamelle bubble chamber. A simple change of magnetic field direction on the horn flipped between focusing positively- or negatively-charged pion beams, and so between neutrinos and antineutrinos.

  4. die geboortedatum van christus as 'n historiese probleem

    African Journals Online (AJOL)

    een maal goewerneur van Sirië (Carrier 2001:12-29; Turner 1965: 61-62; Hughes 1979:50-51; Hoehner 1977:18-23). 3. DOOD VAN HERODES DIE GROTE. Herodes se dood is 'n belangrike datum omdat Christus tydens sy heer- skappy en oënskynlik kort voor sy dood gebore is. Dit word vandag algemeen aanvaar dat ...

  5. Focusing horn

    CERN Multimedia

    1980-01-01

    This was the first magnetic horn developed by Simon Van der Meer to collect antiprotons in the AD complex. It was used for the AA (antiproton accumulator). Making an antiproton beam took a lot of time and effort. Firstly, protons were accelerated to an energy of 26 GeV/c (protons at 26GeV/c, antiprotons at 3.6GeV/c) in the PS and ejected onto a metal target. From the spray of emerging particles, a magnetic horn picked out 3.6 GeV antiprotons for injection into the AA through a wide-aperture focusing quadrupole magnet. For a million protons hitting the target, just one antiproton was captured, 'cooled' and accumulated. It took 3 days to make a beam of 3 x 10^11 -, three hundred thousand million - antiprotons. The development of this technology was a key step to the functioning of CERN's Super Proton Synchrotron as a proton - antiproton collider.

  6. Some remarks on Cicindela saetigera Horn

    NARCIS (Netherlands)

    Jong, de C.

    1937-01-01

    In 1936 five specimens of the beautiful beetle Cicindela saetigera Horn (fig. 1) were collected by Prof. Dr. L. G. M. Baas Becking and Dr. J. Reuter on their journey in Australia and kindly given to the Rijksmuseum van Natuurlijke Historie at Leiden. As this rather uncommon species was new to the

  7. Quality control and biophysical characterisation data of VanSA

    Directory of Open Access Journals (Sweden)

    C.S. Hughes

    2017-10-01

    Full Text Available This data article presents the results from quality control experiments including N-terminal sequencing, SEC-MALS and Mass Spectrometry for purified VanSA used in experiments described in (Hughes et al., 2017 [1]; in addition to ligand interaction measurements and thermal melting curves of VanSA in the presence of screened ligands from circular dichroism measurements as well as UV–vis absorbance spectra for the binding interaction of VanSA in the presence of screened ligands.

  8. Die krisis van ongeloof in Numeri 13-14

    African Journals Online (AJOL)

    Die ver- haal gebruik die aanloklikheid van die land as 'n submotief om 'n groter drama uit te beeld: die konflik tussen Israel en sy God. ISSN 0259 9422 ... In aansluiting by Eksodus 34 laat die liefde en trou van die Here aan Horn die ...... langs die weg van die tema van veertig jaar dat 'de hoofdstukken 13-14 een sleutel-.

  9. Geskiedsfilosofie in 'n krisis: Die noodwendigheid en aktualiteit van ...

    African Journals Online (AJOL)

    Die filosofie is deel van die mens se lewenspraxis wat horn altyd voltrek binne die raamw^erk van wat een- maal genoem is die 'polis', en wat ons vandag breedweg kan bestempel as die politieke proses waardeur mense in staatlike en interstaatlike verband poog om iets van die goeie lewe (the good life) te verwerklik.

  10. Die noodsaaklikheid van ’n veelsydige persoon- likheidsontwikkeling en in waiter mate die lees van keurleesstof daartoe kan hydra

    Directory of Open Access Journals (Sweden)

    J. L. du Plooy

    1962-03-01

    Full Text Available Dit is vleieiu] om te verneem dat u of ’11 I>ekciulc oor ’n sterk en innemende persoonliklieid beskik. In die meeste gevalle voel u aan wat daarmee bedoel word en dit prikkel 11 trots. Dit streel u Ego. Diep-in is u van die waarlieid van die bewering oortuig, al is u taamlik onl>cwus van wat alles tot u persoonlikbeidsvorming bygedra liet. So ’n opmerking laat u vir die eerste maal ervaar watter invloed u op u medemens uitoefen en die krag wat van u uitstraal. U liet u medemens sodanig beïndriik dat liy nie kon nalaat om die nawerking van u ]ersooidiklieid op horn kenbaar te maak nie.

  11. Die na-binne of introverte gengtheid van ^Kerk en wêreld 2000'

    African Journals Online (AJOL)

    gebeur horn aangaan. Hierdie is dan ook een van die redes waarom die NHKA daartoe oorgegaan bet om 'n werkdokument soos Kerk en wêreld 2000 daar te stel. Hy wou duidelik uitspel dat, alhoewel hy teologies dink, hy dit doen ten behoewe van die wêreld. Nadat die Kerk dit oor die verstaan van sy fondamente gesé ...

  12. Sandy ja Hugh - paar või mitte? / Hugh Grant, Sandra Bullock

    Index Scriptorium Estoniae

    Grant, Hugh, 1960-

    2003-01-01

    Romantilises komöödias "Kaks nädalat armumiseks" ("Two Weeks Notice"), režissöör Marc Lawrence, mängivad kaks kuulsat näitlejat. Staarid oma suhetest : Hugh Grant : "Sandra on geenius"; Sandra Bullock : "Oleme temaga nagu kaksikud!"

  13. Aerial gamma ray and magnetic survey, Van Horn and Pecos Quadrangles, Texas. Volume I. Final report

    International Nuclear Information System (INIS)

    1977-10-01

    A high sensitivity, airborne radiometric and magnetic survey of portions of the Big Bend, Texas area was conducted. The project area comprising the Van Horn and Pecos 1:250,000 NTMS sheets, consists of approximately 16,400 square miles. A total of 6,666 line miles of high sensitivity radiometric and magnetic data were collected. Traverse lines were flown at a spacing of 3.125 miles in an east/west direction with tie lines flown in a north/south direction at a 18.375 miles separation. All data were collected utilizing a fixed wing aircraft, Grumman G-89 and over 3,500 cubic inches of NaI crystal detector. Magnetometer data were collected utilizing a high sensitivity, 0.25 gamma, proton magnetometer. Data were digitally recorded at 0.5 second intervals. All field data were returned to the computer facilities for processing, statistical analysis, and interpretation. Other data are presented which include corrected profiles of all radiometric variables, magnetic data, radar altimeter data, barometric altimeter data, air temperature and airborne Bismuth contributions. Data presented have been summed to provide 1.0 second equivalent sample intervals, corrected for Compton Scatter, altitude dependence and atmospheric Bismuth. These data are presented in the form of strip charts, microfiche, and digital magnetic tapes containing raw spectral data, single record data, magnetic data, and statistical analysis results. In addition, computer generated anomaly maps along with interpretation maps are presented relating mapped geology to the collected radiometric data

  14. Langston Hughes Curriculum Packet: Dig and Be Dug in Return.

    Science.gov (United States)

    Danielson, Susan

    Designed in a flexible format for use by college instructors, high school teachers, and community education workers, this curriculum packet serves as an introduction to the life and works of black poet Langston Hughes. The major component of the packet is a critical essay that explores the thematic highlights of Hughes's career. The remaining…

  15. Solving non-linear Horn clauses using a linear Horn clause solver

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick; Ganty, Pierre

    2016-01-01

    In this paper we show that checking satisfiability of a set of non-linear Horn clauses (also called a non-linear Horn clause program) can be achieved using a solver for linear Horn clauses. We achieve this by interleaving a program transformation with a satisfiability checker for linear Horn...... clauses (also called a solver for linear Horn clauses). The program transformation is based on the notion of tree dimension, which we apply to a set of non-linear clauses, yielding a set whose derivation trees have bounded dimension. Such a set of clauses can be linearised. The main algorithm...... dimension. We constructed a prototype implementation of this approach and performed some experiments on a set of verification problems, which shows some promise....

  16. Francesca Hughes: Architecture of Error: Matter, Measure and the Misadventure of Precision

    DEFF Research Database (Denmark)

    Foote, Jonathan

    2016-01-01

    Review of "Architecture of Error: Matter, Measure and the Misadventure of Precision" by Francesca Hughes (MIT Press, 2014)......Review of "Architecture of Error: Matter, Measure and the Misadventure of Precision" by Francesca Hughes (MIT Press, 2014)...

  17. 77 FR 52264 - Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems...

    Science.gov (United States)

    2012-08-29

    ... Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate... Airworthiness Directive (AD): Hughes Helicopters Inc., and McDonnel Douglas Helicopter Systems (Type Certificate...

  18. Chlamydia trachomatis-induced Fitz-Hugh-Curtis syndrome: a case report.

    Science.gov (United States)

    Ekabe, Cyril Jabea; Kehbila, Jules; Njim, Tsi; Kadia, Benjamin Momo; Tendonge, Celestine Ntemlefack; Monekosso, Gottlieb Lobe

    2017-01-03

    Fitz-Hugh-Curtis syndrome is defined as perihepatitis associated with pelvic inflammatory disease. Chlamydia trachomatis is one of its most common aetiologies. This syndrome usually presents with right upper quadrant abdominal pain mimicking other hepatobiliary and gastrointestinal pathologies, hence, posing a diagnostic dilemma in settings with limited diagnostic tools. A 32 year old African female presented with acute right upper quadrant abdominal pain and vaginal discharge, for which she had previously received treatment in another health center with no improvement. Clinical and laboratory findings were suggestive of Fitz-Hugh-Curtis syndrome. Five days after treatment with oral doxycycline, the patient showed marked clinical improvement. Fitz-Hugh-Curtis syndrome is a common cause of right upper quadrant pain which is often under diagnosed in poor communities. Hence, it should be included as a differential diagnosis in patients presenting with right upper quadrant pain, especially in females of reproductive age.

  19. 78 FR 18226 - Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems...

    Science.gov (United States)

    2013-03-26

    ... Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate... directive (AD): 2013-05-16 Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type...

  20. Nonlinear oscillations of the FitzHugh-Nagumo equations under combined external and two-frequency parametric excitations

    International Nuclear Information System (INIS)

    Tatchim Bemmo, D.; Siewe Siewe, M.; Tchawoua, C.

    2011-01-01

    The continuous FitzHugh-Nagumo (FHN for short) model is transformed into modified van der Pol oscillator with asymmetry under external and two-frequency parametric excitations. At the first, the dependence of the solutions on a combined external and two-frequency parametric stimulus forcing is investigated. By using the multiple scale method, ranges of applied current and/or parametric forcing in which nonlinear oscillations are observed are described. Second, when the multiple scale method cannot be used, we numerically prove that in the modified van der Pol oscillator with asymmetry under external and two-frequency parametric excitations, chaos and periodic solution depending on the combination between different frequencies of the model should appear. We also show that the amplitude of the oscillations can be reduced or increased. To do this, we perform the study of the FHN model by choosing a range of parameters exhibiting Hopf bifurcation and two qualitative different regimes in phase portrait. - Highlights: → We model both external and two-frequency parametric excitations in FHN equations. → We examine effects of harmonic forcing on coupled nonlinear oscillator. → Jump and hysteresis phenomena are observed in the dynamical response. → By increasing the constant stimulus we obtain limit cycle. → Some combinations of frequencies produce limit cycle and chaos for other.

  1. Hugh Hefner - maailma esi-playboy / Neeme Raud

    Index Scriptorium Estoniae

    Raud, Neeme, 1969-

    2004-01-01

    Ajakirja Playboy asutajast Hugh Hefner'ist, tema elufilosoofiast ja põhimõtetest erootikaväljaande sisu kujundamisel. Ärijuhi Christie Hefner'i sõnul on rahvusvahelise multimeedia-meelelahutusfirma praeguseks eesmärgiks brändi sobitamine erinevatesse meediavormidesse. Lisa: Mis on Playboy?

  2. On the Hughes model and numerical aspects

    KAUST Repository

    Gomes, Diogo A.; Machado Velho, Roberto

    2017-01-01

    We study a crowd model proposed by R. Hughes in [11] and we describe a numerical approach to solve it. This model comprises a Fokker-Planck equation coupled with an eikonal equation with Dirichlet or Neumann data. First, we establish a priori

  3. Hugh Blairs Lectures on Rhetoric and Belles Lettres

    DEFF Research Database (Denmark)

    Schatz-Jakobsen, Claus

    1989-01-01

    Artiklen nærlæser dekonstruktivt dele af den skotske retorikprofessor Hugh Blairs Lecures on Rhetoric and Belles Lettres (1783) og påviser splittelsen mellem to vidt forskellige retorik- og liltteraturhistoriske interesser, neoklassicistiske vs. romantiske....

  4. On the Hughes' model for pedestrian flow: The one-dimensional case

    KAUST Repository

    Di Francesco, Marco

    2011-02-01

    In this paper we investigate the mathematical theory of Hughes\\' model for the flow of pedestrians (cf. Hughes (2002) [17]), consisting of a non-linear conservation law for the density of pedestrians coupled with an eikonal equation for a potential modelling the common sense of the task. For such an approximated system we prove existence and uniqueness of entropy solutions (in one space dimension) in the sense of Kružkov (1970) [22], in which the boundary conditions are posed following the approach of Bardos et al. (1979) [7]. We use BV estimates on the density ρ and stability estimates on the potential Π in order to prove uniqueness. Furthermore, we analyze the evolution of characteristics for the original Hughes\\' model in one space dimension and study the behavior of simple solutions, in order to reproduce interesting phenomena related to the formation of shocks and rarefaction waves. The characteristic calculus is supported by numerical simulations. © 2010 Elsevier Inc.

  5. Responses to Hugh Heclo's "On Thinking Institutionally"

    Science.gov (United States)

    Fennell, Robert C.; Ascough, Richard S.; Liew, Tat-siong Benny; McLain, Michael; Westfield, Nancy Lynne

    2010-01-01

    Hugh Heclo's recent book "On Thinking Institutionally" (Paradigm Publishers, 2008) analyzes changes that have taken place in the past half century in how North Americans tend to think and act in institutions. The volume is receiving particular attention as it can be applied to higher education and to religious denominations, and so deserves…

  6. Symposium Festschrift Hughes (Vernon W) to Celebrate his 70th birthday

    CERN Document Server

    1992-01-01

    The contents of this book are derived from a celebration of the 70th birthday of Vernon W Hughes. Professor Hughes' career has touched on several areas in modern physics ranging from precision measurements of the fundamental properties of atoms to measurements of spin structure functions of the proton via deep inelastic muon scattering at the world's highest energy fixed target machines. This observance of his 70th birthday brings together experimental and theoretical physicists who are leaders of the many fields in which he has made contributions.

  7. Hugh de Wardener - the Man and the Scientist.

    Science.gov (United States)

    Phillips, M E; de Wardener, S

    2016-02-01

    Hugh de Wardener died on 29th September 2013, ten days before his 98th birthday. He had a diverse upbringing and qualified in Medicine in 1939. He joined the army but was captured in 1942 and imprisoned in Singapore and Thailand until 1945. His clinical care of fellow prisoners was highly regarded. He preserved their clinical records and used them, post-war, to write two Lancet papers. One showed, for the first time, that Wernickes encephalopathy could be caused by severe malnutrition and cured by small doses of vitamin B1. His later academic interests were based on the emphasis he placed on renal physiology. This applied to the topic most associated with his name-Natriuretic Hormone. Whilst de Wardener never isolated this hormone, his early experiments, demonstrating that a third factor other than GFR and aldosterone affected renal sodium transport, were substantiated by others. Hugh had many research interests: pyelonephritis, renal histology, maintenance dialysis and metabolic/renal bone disease. In his later years he researched intensively into the role of sodium and salt in the aetiology of essential hypertension. Hugh was president of the International Society of Nephrology (1969-72) and the UK Renal Association (1975-78). He received many awards and recognitions from across the world, many of them after his (so-called) retirement. Throughout his career he never neglected the care of his patients. As Bob Schrier wrote in his obituary of de Wardener in Kidney International he was a caring physicianwhose dedication to his patients welfare was exemplary.

  8. A Director's Guide to High School Horns.

    Science.gov (United States)

    Conway, Collen

    1998-01-01

    Conveys that the horn (French horn) is the most difficult instrument for band and orchestra directors to teach because playing the horn requires students to have very strong aural skills. Identifies the horn specific techniques students should know, such as hand positions, alternate fingerings, and transposition. Provides different methods for…

  9. Fuzzy reasoning on Horn Set

    International Nuclear Information System (INIS)

    Liu, X.; Fang, K.

    1986-01-01

    A theoretical study in fuzzy reasoning on Horn Set is presented in this paper. The authors first introduce the concepts of λ-Horn Set of clauses and λ-Input Half Lock deduction. They then use the λ-resolution method to discuss fuzzy reasoning on λ-Horn set of clauses. It is proved that the proposed λ-Input Half Lock resolution method is complete with the rules in certain format

  10. The audiological health of horn players.

    Science.gov (United States)

    Wilson, Wayne J; O'Brien, Ian; Bradley, Andrew P

    2013-01-01

    Among orchestral musicians, horn players are one of the most at-risk groups for noise-induced hearing loss (NIHL). To investigate this group further, pure tone audiometry and a 14-item questionnaire were used to assess the hearing health, as well as attitudes and practices regarding hearing conservation, among 142 French horn players attending an international horn conference in Brisbane, Australia. Of this study's French horn players, 11.1% to 22.2%, and 17.7% to 32.9% of those aged ≤40 years, showed some form of hearing loss (corrected for age and gender) typical of NIHL, using conservative versus lenient criteria, respectively. Stepwise multiple regression analyses showed no obvious predictor of hearing loss in this study's participants. Of the 18% of participants who reported using hearing protection, 81% used this protection "sometimes" and 50% used generic, foam, or other inferior forms of protection. Continued efforts to better manage the hearing health of horn players is warranted particularly as any hearing loss will affect a horn player's ability to perform and therefore his or her livelihood. Managing the hearing health of horn players will be challenging, however, with no simple predictor of NIHL loss being identified in this study's sample.

  11. Non-communicating Rudimentary Uterine Horn Pregnancy

    Directory of Open Access Journals (Sweden)

    I Upadhyaya

    2011-12-01

    Full Text Available Pregnancy in a non-communicating rudimentary horn is an extremely rare form of ectopic gestation. The rudimentary horn may or may not communicate with the uterine cavity with the majority of cases being non-communicating. The patient exhibits features of acute abdomen and carries a high risk of maternal death. Even modern scans remain elusive whereas laparatomy remains the confi rmatory procedure for the diagnosis. Because of the varied muscular constitution in the thickness and distensibility of the wall of the rudimentary horn, pregnancy is accommodated for a variable period of gestation. Here, we report three cases of pregnancy in a non-communicating rudimentary horn of the uterus in different periods of gestation, their outcome and a review of the available literature. Keywords: Mullerian anomalies, non-communicating rudimentary horn pregnancy, surgical management.

  12. Dr. Vernon W. Hughes, 81, authority on the subatomic

    CERN Multimedia

    Lavietes, S

    2002-01-01

    "Dr. Vernon W. Hughes, a Yale physicist whose investigation of particles called muons poked holes in standard subatomic theory and provided evidence for the existence of previously undetected matter, died at Yale-New Haven Hospital last Tuesday" (1/2 page).

  13. Hugh Grant's Image Restoration Discourse: An Actor Apologizes.

    Science.gov (United States)

    Benoit, William L.

    1997-01-01

    Examines the strategies used by actor Hugh Grant (in his appearances on talk shows) to help restore his reputation after he was arrested for lewd behavior with a prostitute. Uses this case as a springboard to contrast entertainment image repair with political and corporate image repair, arguing that important situational differences can be…

  14. Unfettered expression and human dignity: Langston Hughes's not ...

    African Journals Online (AJOL)

    In literature as in other disciplines, freedom of speech entails the unburdening of one's intent from the innermost recesses of one's mind. It is a great relief and a ventilation of the conscious and sub-conscious being. Langston Hughes and Chinua Achebe are noted human rights proponents in their American and Nigerian ...

  15. Some Numerical Aspects on Crowd Motion - The Hughes Model

    KAUST Repository

    Gomes, Diogo A.; Machado Velho, Roberto

    2016-01-01

    Here, we study a crowd model proposed by R. Hughes in [5] and we describe a numerical approach to solve it. This model comprises a Fokker-Planck equation coupled with an Eikonal equation with Dirichlet or Neumann data. First, we establish a priori

  16. Additional Responses to Hugh Heclo's "On Thinking Institutionally"

    Science.gov (United States)

    Lincoln, Timothy D.; Fennell, Robert C.

    2011-01-01

    Issue 13:3 of this journal (July 2010) included a "Conversation" on Hugh Heclo's recent publication "On Thinking Institutionally" (Paradigm Publishers, 2008) with a book review by Robert Fennell and responses by Richard Ascough, Tat-siong Benny Liew, Michael McLain, and Lynne Westfield. Here we publish two additional responses to this same book.…

  17. Prurigo Nodularis With Cutaneous Horn

    Directory of Open Access Journals (Sweden)

    Thadeus Joseph

    1997-01-01

    Full Text Available Cutaneous horns are rare horny excrescences which occur in various dermatoses. We report a girl with prurigo nodularis who developed a horn on one of the nodules. This unique association has not been reported so far.

  18. Synchronization of FitzHugh-Nagumo neurons in external electrical stimulation via nonlinear control

    International Nuclear Information System (INIS)

    Wang Jiang; Zhang Ting; Deng Bin

    2007-01-01

    Synchronization of FitzHugh-Nagumo neural system under external electrical stimulation via the nonlinear control is investigated in this paper. Firstly, the different dynamical behavior of the nonlinear cable model based on the FitzHugh-Nagumo model responding to various external electrical stimulations is studied. Next, using the result of the analysis, a nonlinear feedback linearization control scheme and an adaptive control strategy are designed to synchronization two neurons. Computer simulations are provided to verify the efficiency of the designed synchronization schemes

  19. Ted Hughes: The Development of a Children's Poet

    Science.gov (United States)

    Lockwood, Michael

    2009-01-01

    This article looks at how Ted Hughes' poetry for children developed over more than 30 years of publication. It traces the movement from his earlier, more conventional rhyming poems, such as "Meet My Folks!" (1961) and "Nessie the Mannerless Monster" (1964), to the mature, free verse "animal poems" for older readers of "Season Songs" (1976c),…

  20. Horn amplification at a tyre/road interface. Pt. 1. Experiment and computation; Tire/romenkan ni okeru horn koka. Jikken to keisan

    Energy Technology Data Exchange (ETDEWEB)

    Fujikawa, T. [Japan Automobile Research Institute Inc., Tsukuba (Japan)

    2000-01-01

    Tyre/road interface noise can be amplified by a horn type space formed by the tread face of the tyre and the road. This paper is a report on studies on experiment and computation to elucidate the above phenomenon in detail. Measurement and computation were carried out on a tyre replaced with a single cylinder, whereas it was verified that the horn effect by each frequency can be calculated by BEM computation. Then, discussions were given on actual tyres combined with the BEM computation, and the following results were acquired: (1) the horn effect is small in zones of low frequencies; (2) the larger the tread width, the larger the horn effect increases; (3) the relationship between the tread width and the horn effect is governed by the ratio of the road contact width to noise wavelength; (4) the frequency characteristics of the horn effect vary largely according to whether the sound source exists in forward or rearward locations; (5) the relationship between the forward and rearward locations of the sound source with the horn effect is governed by the distance between the front and rear ends of the road contact face of the tyre; (6) the smaller the radius of the tread shoulder, the greater the horn effect; (7) tread deformation due to load applied on the tyre slightly changes the frequency characteristics of the horn effect; (8) with the sound source existing closer to the center of ground contacting width, the horn effect increases; and (9) the present study has verified the horn effect of 22 dB as the maximum. If the sound source is not present at the center of ground contacting width, the horn effect is reduced to about 10 dB, but the value cannot be ignored as the influence on traffic noise. (translated by NEDO)

  1. “And time future contained in time past”: British Modernist Poetry from T.S. Eliot to Ted Hughes

    Directory of Open Access Journals (Sweden)

    Tatiana N. Krasavchenko

    2017-09-01

    Full Text Available It seems that T.S. Eliot (1888–1965 and Ted Hughes (1930–1998 are poets of different individual talents and epochs. Hughes, a poet of the second half of the 20 th century, concentrated on the conflict between Nature and the human being destroying Nature and thus preparing the end of the humanity. T.S. Eliot was a poet of urban civilization, a reformer of the Anglophone modernist poetry. In his days, the “poetry of Nature” rooted in the pastoral poetry of the 17 th –18 th centuries and in Romanticism, existed but only at the margins of mainstream poetic trends. Nevertheless, one can find it even in Eliot’s poetry, particularly in his Landscapes — poems written at the beginning of the 1930s. Also, both Eliot and Hughes were modernists. Eliot standing at the beginning of modernism, Hughes at its end; though the latter lived in the time of postmodernism, he was not a postmodernist himself since he was not engaged in the deconstruction and fragmentation of the “world model.” Like Eliot, he was a poet with integral Weltanschauung and a bright individual talent. Like Eliot, he was a traditionalist, though Eliot being an American was a “conscious traditionalist,” while Hughes, an Englishman, was most likely a “born” traditionalist: instead of deconstructing tradition, he was bearing on it. His “great tradition” included Shakespeare, Blake, Coleridge, Kipling, Graves, and Dylan Thomas. Both Eliot and Hughes are poets of eschatological trend and mythologists. However, one will not find Eliot among the authorities enlisted by Hughes in his “great tradition.” In the time of Hughes, Eliot was rejected due to the regular change of mainstreams trends. British poetry in the second half of the 20 th century is “tired” of urban poetry, of “Nature denial,” so it comes back to its track, and the motives that existed in Eliot’s poetry only in the background are now brought to the forefront.

  2. Using Hughes' Salvo Model to Examine Ship Characteristics in Surface Warfare

    National Research Council Canada - National Science Library

    Haug, Kevin

    2004-01-01

    ...? Using Hughes' Salvo equations, the author conducted combat simulations to investigate the singular and pairwise effects of providing one force an advantage in its offensive power, defensive power...

  3. Actively adjustable step-type ultrasonic horns in longitudinal vibration

    Science.gov (United States)

    Lin, Shuyu; Guo, Hao; Xu, Jie

    2018-04-01

    Actively adjustable longitudinal step-type ultrasonic horns are proposed and studied. The horn is composed of a traditional ultrasonic horn and piezoelectric material. In practical applications, this kind of step-type ultrasonic horn is mechanically excited by an ultrasonic transducer and the piezoelectric material is connected to an adjustable electric impedance. In this research, the effects of the electric impedance and of the location of the piezoelectric material on the performance of the horn are studied. It is shown that when the electric resistance is increased, the resonance frequency of the horn is increased; the displacement magnification is increased when the piezoelectric material is located in the large end and decreased when the piezoelectric material is located in the small end of the horn. The displacement magnification for the piezoelectric material in the large end is larger than that for the piezoelectric material in the small end of the horn. Some step-type ultrasonic horns are designed and manufactured; the resonance frequency and the displacement magnification are measured by means of POLYTEC Laser Scanning vibrometer. It is shown that the theoretical resonance frequency and the displacement magnification are in good agreement with the measured results. It is concluded that by means of the insertion of the piezoelectric material in the longitudinal horn, the horn performance can be adjusted by changing the electric impedance and the location of the piezoelectric material in the horn. It is expected that this kind of adjustable ultrasonic horns can be used in traditional and potential ultrasonic technologies where the vibrational performance adjustment is needed.

  4. Next steps in propositional horn contraction

    CSIR Research Space (South Africa)

    Booth, R

    2009-06-01

    Full Text Available not opted for this choice.) Our start- ing point for defining Horn e-contraction is in terms of Del- grande’s definition of e-remainder sets. Definition 3.1 (Horn e-Remainder Sets) For a belief setH , X ∈ H ↓e Φ iff (i) X ⊆ H , (ii) X 6|= Φ, and (iii...) for every X ′ s.t. X ⊂ X ′ ⊆ H , X ′ |= Φ. We refer to the elements of H ↓eΦ as the Horn e-remainder sets of H w.r.t. Φ. It is easy to verify that all Horn e-remainder sets are belief sets. Also, H ↓eΦ = ∅ iff |= Φ. We now proceed to define selection...

  5. The Fat-Dachsous signaling pathway regulates growth of horns in Trypoxylus dichotomus, but does not affect horn allometry.

    Science.gov (United States)

    Hust, James; Lavine, Mark D; Worthington, Amy M; Zinna, Robert; Gotoh, Hiroki; Niimi, T; Lavine, Laura

    Males of the Asian rhinoceros beetle, Trypoxylus dichotomus, possess exaggerated head and thoracic horns that scale dramatically out of proportion to body size. While studies of insulin signaling suggest that this pathway regulates nutrition-dependent growth including exaggerated horns, what regulates disproportionate growth has yet to be identified. The Fat signaling pathway is a potential candidate for regulating disproportionate growth of sexually-selected traits, a hypothesis we advanced in a previous paper (Gotoh et al., 2015). To investigate the role of Fat signaling in the growth and scaling of the sexually dimorphic, condition-dependent traits of the in the Asian rhinoceros beetle T. dichotomus, we used RNA interference to knock down expression of fat and its co-receptor dachsous. Knockdown of fat, and to a lesser degree dachsous, caused shortening and widening of appendages, including the head and thoracic horns. However, scaling of horns to body size was not affected. Our results show that Fat signaling regulates horn growth in T. dichotomus as it does in appendage growth in other insects. However, we provide evidence that Fat signaling does not mediate the disproportionate, positive allometric growth of horns in T. dichotomus. Copyright © 2018 Elsevier Ltd. All rights reserved.

  6. A Haphazard Reading of McHugh and Barlow (2010)

    Science.gov (United States)

    McHugh, R. Kathryn; Barlow, David H.

    2010-01-01

    Replies to comments on Do haphazard reviews provide sound directions for dissemination efforts? by Eileen Gambrill and Julia H. Littell on the current authors' article The dissemination and implementation of evidence-based psychological treatments: A review of current efforts by Kathryn R. McHugh and David H. Barlow. In their commentary, Gambrill…

  7. Bifurcaciones del Sistema de FitzHugh-Nagumo (FHN

    Directory of Open Access Journals (Sweden)

    Fernando Ongay Larios

    2011-01-01

    Full Text Available La familia paramétrica de los sistemas de FitzHugh-Nagumo es rica en bifurcaciones (Rocsoreanu et al., 2000. En este artículo estudiamos las bifurcaciones silla-nodo y de Hopf desde el punto de vista matemático de esta familia y se describen completamente los conjuntos de bifurcación en el espacio de parámetros.

  8. Horn installed in CNGS tunnel

    CERN Multimedia

    Maximilien Brice

    2005-01-01

    The horn is installed for the CERN Neutrinos to Gran Sasso (CNGS) project. Protons collide with a graphite target producing charged particles that are focussed by the magnetic field in the horn. These particles will then pass into a decay tube where they decay into neutrinos, which travel towards a detector at Gran Sasso 732 km away in Italy.

  9. AA, sandwich line with magnetic horn

    CERN Multimedia

    CERN PhotoLab

    1980-01-01

    The magnetic horn, focusing the antiprotons emanating from the target, was affixed to a sandwich line through which the 150 kA pulses were supplied. Expecting to have to change from time to time the fragile horn (inner conductor only 0.7 mm thick), the assembly was designed for quick exchange. At the lower end of the sandwich line we see the connectors for the high-current cables, at the upper end the magnet horn. It has just been lifted from the V-supports which held it aligned downstream of the target. Continue with 8010293.

  10. On the Hughes model and numerical aspects

    KAUST Repository

    Gomes, Diogo A.

    2017-01-05

    We study a crowd model proposed by R. Hughes in [11] and we describe a numerical approach to solve it. This model comprises a Fokker-Planck equation coupled with an eikonal equation with Dirichlet or Neumann data. First, we establish a priori estimates for the solutions. Second, we study radial solutions and identify a shock formation mechanism. Third, we illustrate the existence of congestion, the breakdown of the model, and the trend to the equilibrium. Finally, we propose a new numerical method and consider two examples.

  11. Horn belief change: A contraction core

    CSIR Research Space (South Africa)

    Booth, R

    2010-08-01

    Full Text Available , and counterfactuals’, Artificial Intelligence, 57(2–3), 227–270, (1992). [5] S.O. Hansson, ‘Kernel contraction’, Journal of Symbolic Logic, 59(3), 845–859, (1994). [6] M. Langlois, R. Sloan, B. Szo¨re´nyi, and G. Thra´n, ‘Horn complements: Towards Horn... e-contractions. The argument is based on the observation that the convexity result for full propositional logic [2, Proposition 2.1] does not hold for Horn logic. Example 1 Let H = CnHL(fp! q; q ! rg). Then, for the e- contraction of H with p ! r...

  12. Simon van der Meer in the AA Control Room

    CERN Multimedia

    CERN PhotoLab

    1984-01-01

    Simon van der Meer, spiritus rector of the Antiproton Accumulator, in the AA Control Room. Inventor of stochastic cooling, on which the AA was based, and of the magnetic horn, with which the antiprotons were focused, he also wrote most of the software with which the AA was controlled, and spent uncountable numbers of hours in this chair to tickle the AA to top performance. 8 months after this picture was taken, he received, in October 1984, the Nobel prize, together with Carlo Rubbia, the moving force behind the whole Proton-Antiproton Collider project that led to the discovery, in 1983, of the W and Z intermediate bosons.

  13. Neutrino horn

    CERN Multimedia

    1967-01-01

    View of the new neutrino horn installed in its blockhouse from the target end. Protons pass through the 2mm hole in the centre of the small fluorescent screen, hitting the target immediately behind it. The circular tubes carry pressurized cooling water.

  14. One Hundred Years of Psychiatry at Johns Hopkins: A Story of Meyer to McHugh.

    Science.gov (United States)

    DePaulo, J Raymond

    2017-04-01

    This article describes a history of clinical methods and constructs that guide Psychiatry at Johns Hopkins Phipps Clinic today. The contributions of Adolf Meyer and Paul McHugh are central and closely connected. Both emphasize the clinical examination as the central practice of psychiatry as a specialty within medicine. Meyer's comprehensive examination of the patient became the centerpiece of his approach and was the standard for psychiatrists in the English-speaking world. McHugh, with Phillip Slavney, developed a pluralistic and practical framework for interpreting that history and examination. Both argued against the uncritical use of the modern disease construct. McHugh argues that the disease construct, although fundamental, is but one of four useful "perspectives of psychiatry" and is, thus, an insufficient basis for psychiatric practice. The perspectives could be used as an organizing framework by all physicians who seek a practical and truly personalized approach to the care of patients.

  15. Evaluation and combined geophysical interpretations of NURE and related geoscience data in the Van Horn, Pecos, Marfa, Fort Stockton, Presidido, and Emory Peak quadrangles, Texas. Volume 1. Final report

    International Nuclear Information System (INIS)

    Keller, G.R.; Hinze, W.J.; Aiken, C.L.V.; Goodell, P.C.; Roy, R.F.; Pingitore, N.E.

    1981-09-01

    This report (two volumes) is the culmination of a two-year study of the six Trans-Pecos Texas quadrangles (Van Horn, Pecos, Marfa, Fort Stockton, Presidio, and Emory Park) surveyed as part of the National Uranium Resource Evaluation (NURE) program. Volume I contains a discussion of the aeromagnetic, gravity and geochemical data, their processing, and their analysis. The geologic history and setting of the Trans-Pecos are discussed along with the uranium potential of the region. Uranium anomalies and occurrences characteristic of numerous different NURE classes are present in the study area, and information is presented on 33 drill holes into these targets. Volume II is a folio of maps reduced to a scale of 1:500,000. Geologic maps for each of the six quadrangles are included and the geophysical maps have been prepared to be overlays for the goelogic maps. In addition to the geologic maps, residual aeromagnetic anomaly, complete Bouguer gravity anomaly, flight line index, gravity station index, and anomaly interpretative maps were prepared for each quadrangle. A large suite of digitally processed maps of gravity and aeromagnetic data were prepared and are included in Volume II

  16. Computed tomography of the temporal horns at Alzheimer's disease

    International Nuclear Information System (INIS)

    Gerber, U.; Vogel

    1989-01-01

    In the literature there are different opinions referring to the involvement of the temporal lobes or horns at Alzheimer's disease. Conventionally computed tomogram of the head does not include the temporal horn in its full length. A simple method to demonstrate the temporal horns after cranial computer tomography is described. It allows the evaluation of temporal lobe and temporal horn if questionable alterations at Alzheimer's disease are to be discussed. (orig.) [de

  17. Eerste inschatting van vrijkomen van plastics als gevolg van slijtage van Mosselzaad-Invagsystemen (MZI's)

    NARCIS (Netherlands)

    Hartog, E.; Brink, van den A.M.; Kamermans, P.

    2014-01-01

    IMARES heeft onderzoek uitgevoerd naar het ontstaan en de aanwezigheid van microplastic zwerfvuil afkomstig van mosselzaad invangsystemen (hierna MZI’s genoemd). Deze studie is onderdeel van een opdracht van het ministerie van EL&I, om de ecologische effecten van opschaling van MZI’s in de

  18. On the Hughes' model for pedestrian flow: The one-dimensional case

    KAUST Repository

    Di Francesco, Marco; Markowich, Peter A.; Pietschmann, Jan-Frederik; Wolfram, Marie-Therese

    2011-01-01

    of Bardos et al. (1979) [7]. We use BV estimates on the density ρ and stability estimates on the potential Π in order to prove uniqueness. Furthermore, we analyze the evolution of characteristics for the original Hughes' model in one space dimension

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

    Science.gov (United States)

    Smith, Rebecca

    2007-01-01

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

  20. Solving Winfree's puzzle: The isochrons in the FitzHugh-Nagumo model

    International Nuclear Information System (INIS)

    Langfield, Peter; Krauskopf, Bernd; Osinga, Hinke M.

    2014-01-01

    We consider the FitzHugh-Nagumo model, an example of a system with two time scales for which Winfree was unable to determine the overall structure of the isochrons. An isochron is the set of all points in the basin of an attracting periodic orbit that converge to this periodic orbit with the same asymptotic phase. We compute the isochrons as one-dimensional parametrised curves with a method based on the continuation of suitable two-point boundary value problems. This allows us to present in detail the geometry of how the basin of attraction is foliated by isochrons. They exhibit extreme sensitivity and feature sharp turns, which is why Winfree had difficulties finding them. We observe that the sharp turns and sensitivity of the isochrons are associated with the slow-fast nature of the FitzHugh-Nagumo system; more specifically, it occurs near its repelling (unstable) slow manifold

  1. An Annotated Guide and Interactive Database for Solo Horn Repertoire

    Science.gov (United States)

    Schouten, Sarah

    2012-01-01

    Given the horn's lengthy history, it is not surprising that many scholars have examined the evolution of the instrument from the natural horn to the modern horn and its expansive repertoire. Numerous dissertations, theses, and treatises illuminate specific elements of the horn's solo repertoire; however, no scholar has produced a…

  2. Pollution chronology of the Golden Horn sediments

    International Nuclear Information System (INIS)

    Teksoez, G.; Yetis, U.; Tuncel, G.; Balkas, T.I.

    1990-01-01

    Sediment accumulation in the Golden Horn has been established by means of a useful geochronological technique; 210 Pb Radiometric Dating Method. The 210 Pb dating technique revealed a sediment accumulation rate of 3.5 cm yr -1 which is very reasonable given the characteristics of the Golden Horn. The 210 Pb profile also revealed three distinct levels in the sediments of the Golden Horn: a surface layer with nearly uniform activities, an exponential decay interval and a lower region with almost constant low activity. (author)

  3. AA, sandwich line with magnetic horn

    CERN Multimedia

    CERN PhotoLab

    1980-01-01

    Continuation from 8010293: Finally, the sandwich line with the horn is placed on the ground, for the horn to be inspected and, if needed, exchanged for a new one. The whole procedure was trained with several members of the AA team, for quick and safe handling, and to share the radiation dose amongst them.

  4. 75 FR 71069 - Big Horn County Resource Advisory Committee

    Science.gov (United States)

    2010-11-22

    ....us , with the words Big Horn County RAC in the subject line. Facsimilies may be sent to 307-674-2668... DEPARTMENT OF AGRICULTURE Forest Service Big Horn County Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Big Horn County Resource Advisory Committee...

  5. 76 FR 26240 - Big Horn County Resource Advisory Committee

    Science.gov (United States)

    2011-05-06

    ... words Big Horn County RAC in the subject line. Facsimilies may be sent to 307-674-2668. All comments... DEPARTMENT OF AGRICULTURE Forest Service Big Horn County Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Big Horn County Resource Advisory Committee...

  6. Ultra-wideband horn antenna with abrupt radiator

    Science.gov (United States)

    McEwan, Thomas E.

    1998-01-01

    An ultra-wideband horn antenna transmits and receives impulse waveforms for short-range radars and impulse time-of flight systems. The antenna reduces or eliminates various sources of close-in radar clutter, including pulse dispersion and ringing, sidelobe clutter, and feedline coupling into the antenna. Dispersion is minimized with an abrupt launch point radiator element; sidelobe and feedline coupling are minimized by recessing the radiator into a metallic horn. Low frequency cut-off associated with a horn is extended by configuring the radiator drive impedance to approach a short circuit at low frequencies. A tapered feed plate connects at one end to a feedline, and at the other end to a launcher plate which is mounted to an inside wall of the horn. The launcher plate and feed plate join at an abrupt edge which forms the single launch point of the antenna.

  7. Ruptured rudimentary horn at 22 weeks | Dhar | Nigerian Medical ...

    African Journals Online (AJOL)

    Rudimentary horn is a developmental anomaly of the uterus. Pregnancy in a noncommunicating rudimentary horn is very difficult to diagnose before it ruptures. A case of undiagnosed rudimentary horn pregnancy at 22 weeks presented to Nizwa regional referral hospital in shock with features of acute abdomen. Chances of ...

  8. Magnetic Focusing Horn

    CERN Multimedia

    1974-01-01

    This magnetic focusing horn was used for the AA (antiproton accumulator). Its development was an important step towards using CERN's Super Proton Synchrotron as a proton - antiproton collider. This eventually led to the discovery of the W and Z particles in 1983. Making an antiproton beam took a lot of time and effort. Firstly, protons were accelerated to an energy of 26 GeV in the PS and ejected onto a metal target. From the spray of emerging particles, a magnetic horn picked out 3.6 GeV antiprotons for injection into the AA through a wide-aperture focusing quadrupole magnet. For a million protons hitting the target, just one antiproton was captured, 'cooled' and accumulated. It took 3 days to make a beam of 3 x 10^11 -, three hundred thousand million - antiprotons.

  9. EST and microarray analysis of horn development in Onthophagus beetles

    Directory of Open Access Journals (Sweden)

    Tang Zuojian

    2009-10-01

    Full Text Available Abstract Background The origin of novel traits and their subsequent diversification represent central themes in evo-devo and evolutionary ecology. Here we explore the genetic and genomic basis of a class of traits that is both novel and highly diverse, in a group of organisms that is ecologically complex and experimentally tractable: horned beetles. Results We developed two high quality, normalized cDNA libraries for larval and pupal Onthophagus taurus and sequenced 3,488 ESTs that assembled into 451 contigs and 2,330 singletons. We present the annotation and a comparative analysis of the conservation of the sequences. Microarrays developed from the combined libraries were then used to contrast the transcriptome of developing primordia of head horns, prothoracic horns, and legs. Our experiments identify a first comprehensive list of candidate genes for the evolution and diversification of beetle horns. We find that developing horns and legs show many similarities as well as important differences in their transcription profiles, suggesting that the origin of horns was mediated partly, but not entirely, by the recruitment of genes involved in the formation of more traditional appendages such as legs. Furthermore, we find that horns developing from the head and prothorax differ in their transcription profiles to a degree that suggests that head and prothoracic horns are not serial homologs, but instead may have evolved independently from each other. Conclusion We have laid the foundation for a systematic analysis of the genetic basis of horned beetle development and diversification with the potential to contribute significantly to several major frontiers in evolutionary developmental biology.

  10. Mode stability analysis in the beam—wave interaction process for a three-gap Hughes-type coupled cavity chain

    International Nuclear Information System (INIS)

    Luo Ji-Run; Zhu Min; Guo Wei; Cui Jian

    2013-01-01

    Based on space-charge wave theory, the formulae of the beam—wave coupling coefficient and the beam-loaded conductance are given for the beam—wave interaction in an N-gap Hughes-type coupled cavity chain. The ratio of the non-beam-loaded quality factor of the coupled cavity chain to the beam quality factor is used to determine the stability of the beam—wave interaction. As an example, the stabilities of the beam—wave interaction in a three-gap Hughes-type coupled cavity chain are discussed with the formulae and the CST code for the operations of the 2π, π, and π/2 modes, respectively. The results show that stable operation of the 2π, π, and π/2 modes may all be realized in an extended-interaction klystron with the three-gap Hughes-type coupled cavity chain

  11. The stationary tower notes on a course by W. Hugh Woodin

    CERN Document Server

    Larson, Paul B

    2004-01-01

    The stationary tower is an important method in modern set theory, invented by Hugh Woodin in the 1980s. It is a means of constructing generic elementary embeddings and can be applied to produce a variety of useful forcing effects. Hugh Woodin is a leading figure in modern set theory, having made many deep and lasting contributions to the field, in particular to descriptive set theory and large cardinals. This book is the first detailed treatment of his method of the stationary tower that is generally accessible to graduate students in mathematical logic. By giving complete proofs of all the main theorems and discussing them in context, it is intended that the book will become the standard reference on the stationary tower and its applications to descriptive set theory. The first two chapters are taken from a graduate course Woodin taught at Berkeley. The concluding theorem in the course was that large cardinals imply that all sets of reals in the smallest model of set theory (without choice) containing the re...

  12. Assembly of the magnetic horns under way

    CERN Multimedia

    2003-01-01

    One of the key components of the CNGS facility is the system of magnetic lenses, known as horns, which are to point the pions and kaons that will decay into muons and muon-neutrinos in the direction of the Gran Sasso Laboratory. Positioned at the end of the target, which produces the pions and kaons, the system comprises two of these horns. The first focuses the positively charged pions and kaons, which have an energy of approximately 35 GeV, and defocuses the negative particles. Unfortunately, it has a tendency to cause excessive deflection of particles that have energies of less than 35 GeV and insufficient deflection of those with energies of more than 35 GeV. These negative effects are corrected by the second horn (also known as the reflector), which is positioned 40 metres from the first. Ahmed Cherif of the EST Division's Metrology Service checks the straightness of the inner conductor of the first magnetic horn for CNGS. The tolerance is less than one millimetre over a length of approximately 6.5 metre...

  13. Síndrome de Hughes-Stovin

    Directory of Open Access Journals (Sweden)

    Sonia Pankl

    2015-04-01

    Full Text Available El síndrome de Hughes-Stovin es una entidad infrecuente caracterizada por trombosis venosa profunda y aneurismas de la arteria pulmonar, siendo su etiología y patogenia desconocida. Algunos autores la consideran una variante de la enfermedad de Behcet. Su curso natural es generalmente fatal. Se presenta con tos, disnea, hemoptisis, dolor torácico y fiebre. El tratamiento es con esteroides y agentes citotóxicos hasta la cirugía. Presentamos el caso de un hombre de 41 años que consultó por disnea, hemoptisis y dolor torácico, llegándose al diagnóstico de trombosis venosa profunda de miembro inferior derecho, trombo-embolismo de pulmón y aneurismas de arterias pulmonares. Recibió tratamiento con corticoides en altas dosis y 6 pulsos de ciclofosfamida de 1 gramo durante 6 meses, con regresión completa de los aneurismas y de la sintomatología.

  14. Contraction core for horn belief change: preliminary report

    CSIR Research Space (South Africa)

    Booth, R

    2010-05-01

    Full Text Available In this paper the authors continue recent investigations into belief change for Horn logic. The main contribution is a result which shows that the construction method for Horn contraction for belief sets based on infraremainder sets, as recently...

  15. Dog-Bone Horns for Piezoelectric Ultrasonic/Sonic Actuators

    Science.gov (United States)

    Sherrit, Stewart; Bar-Cohen, Yoseph; Chang, Zensheu; Bao, Xiaoqi

    2007-01-01

    A shape reminiscent of a dog bone has been found to be superior to other shapes for mechanical-amplification horns that are components of piezoelectrically driven actuators used in a series of related devices denoted generally as ultrasonic/sonic drill/corers (USDCs). The first of these devices was reported in Ultrasonic/Sonic Drill/Corers With Integrated Sensors (NPO-20856), NASA Tech Briefs, Vol. 25, No. 1 (January 2001), page 38. The dog-bone shape was conceived especially for use in a more recent device in the series, denoted an ultrasonic/ sonic gopher, that was described in Ultrasonic/Sonic Mechanisms for Drilling and Coring (NPO-30291), NASA Tech Briefs, Vol. 27, No. 9 (September 2003), page 65. The figure shows an example of a dog-bone-shaped horn and other components of an ultrasonic gopher. Prerequisite to a meaningful description of this development is an unavoidably lengthy recapitulation of the principle of operation of a USDC and, more specifically, of the ultrasonic/sonic gopher as described previously in NASA Tech Briefs. The ultrasonic actuator includes a stack of piezoelectric rings, the horn, a metal backing, and a bolt that connects the aforementioned parts and provides compressive pre-strain to the piezoelectric stack to prevent breakage of the rings during extension. The stack of piezoelectric rings is excited at the resonance frequency of the overall ultrasonic actuator. Through mechanical amplification by the horn, the displacement in the ultrasonic vibration reaches tens of microns at the tip of the horn. The horn hammers an object that is denoted the free mass because it is free to move longitudinally over a limited distance between hard stops: The free mass bounces back and forth between the ultrasonic horn and a tool bit (a drill bit or a corer). Because the longitudinal speed of the free mass is smaller than the longitudinal speed of vibration of the tip of the horn, contact between the free mass and the horn tip usually occurs at a

  16. Isolamento e caracterização de Pseudomonas maltophilia (Hugh & Ryschenkow, 1960 de material clínico humano, na cidade do Rio de Janeiro Isolating and characterization of Pseudomonas maltophilia (Hugh & Ryschenkow, 1960 from human clinical specimens, in Rio de Janeiro, Guanabara, Brazil

    Directory of Open Access Journals (Sweden)

    Altair A. Zebral

    1973-01-01

    Full Text Available Os autores estudaram as propriedades morfo-bioquímicas e a sensibilidade às substâncias antimicrobianas, de uma nova e rara espécie de Pseudomonas, a Pseudomonas maltophilia (Hugh & Ryschenkow, 1960, isolada de secração vaginal. Como características marcantes, dentre mais de 65 testadas, as amostras estudadas mostraram ser: oxidase negativa e lisina descarboxilase positiva; produziram desoxiribonuclease e um pigmento escuro que se difunde no meio; atacaram oxidativamente a maltose tanto em meio complexo nitrogenado como em meio de Hugh & Leifson e hidrolisaram a esculina. As amostras foram sensíveis ao cloranfenicol, gentamicina, kanamicina, colistin e gabromicina.The authors have studied the morpho-biochemical properties and the sensibility at antimicrobial drugs, of specie of Pseudomonas, the Pseudomonas maltophilia, (Hugh & Ryschenkow, 1960, isolated from vaginal secretion. Since important characteristics among more of sixty-five tested, the strains studied show to be: oxidase negative and lysine decarboxylase positive; to present deoxyrononuclease activity and produced a diffusible brown pigment: acid was produced by oxidation of maltose as much in nitrogenous complex medium as in Hugh & Leifson medium and they hydrolise the esculin. the strains was sensible, for the colistin chloranfenicol, gabromycin, gentamycin and nalidix acid.

  17. Versterking van de loopbaanladder van leraren : wat kunnen we leren van Singapore?

    NARCIS (Netherlands)

    Elffers, L.

    2015-01-01

    In de Lerarenagenda 2013-2020 is een aantal doelstellingen geformuleerd ten aanzien van de bevordering van de loopbaan en professionele ontwikkeling van leraren. Enerzijds wordt ingezet op het stimuleren van professionalisering van leraren na hun initiële opleiding, anderzijds op het versterken van

  18. Tree automata-based refinement with application to Horn clause verification

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick

    2015-01-01

    In this paper we apply tree-automata techniques to refinement of abstract interpretation in Horn clause verification. We go beyond previous work on refining trace abstractions; firstly we handle tree automata rather than string automata and thereby can capture traces in any Horn clause derivation...... compare the results with other state of the art Horn clause verification tools....

  19. The White goddess, Ariadne and myth of the poetic self: The role of myth in forming creative-destructive relation Ted Hughes - Sylvia Plath

    Directory of Open Access Journals (Sweden)

    Mušović Azra A.

    2012-01-01

    Full Text Available Ted Hughes and Sylvia Plath were husband and wife; they were also two of the most remarkable poets of the twentieth century. Both Hughes and Plath were fond of mythic language - their attempts to find meaning in painful events of life took the form of a journey through myth. Just as Song contains a founding image in the work of Ted Hughes, Ariadne can be identified as a founding image in the work of Sylvia Plath. Both of these poems employ mythic language to identify the emotional pattern of each poet's creative stance toward the distinctive subject matter his or her art will seize on. Since Plath was, indeed, the form taken by the White Goddess in Hughes's life, it had been her destiny to inflict devastation on Hughes, as well as release his creative energy. These were the two aspects of her gift, as Robert Graves defined it: creativity and destruction. This paper is concerned with presenting an up-close look at a couple who saw each other as the means to becoming who they wanted to be: writers and mythic figures representing their generation.

  20. Entanglement Classification of extended Greenberger-Horne-Zeilinger-Symmetric States

    OpenAIRE

    Jung, Eylee; Park, DaeKil

    2013-01-01

    In this paper we analyze entanglement classification of extended Greenberger-Horne-Zeilinger-symmetric states $\\rho^{ES}$, which is parametrized by four real parameters $x$, $y_1$, $y_2$ and $y_3$. The condition for separable states of $\\rho^{ES}$ is analytically derived. The higher classes such as bi-separable, W, and Greenberger-Horne-Zeilinger classes are roughly classified by making use of the class-specific optimal witnesses or map from the extended Greenberger-Horne-Zeilinger symmetry t...

  1. Coursing with Coils: The Only Orchestral Instrument Harder Than the French Horn

    Directory of Open Access Journals (Sweden)

    Sarah R. Plumley

    2016-04-01

    Full Text Available Playing the horn has become not only more sophisticated and accurate, but simpler and more efficient for the horn player. The natural horn, used in a variety ways in early history, demanded an incredible level of skill and precision, more than our valved horn today in some ways because it required a more accurate ear, more embouchure dexterity, and the necessity of wrangling crooks for different keys. Thus, it required many practiced skills of the player that are no longer as necessary as they once were. This paper discusses each of these demands along with the history of the horn, its uses and popularity, and how it compares in construction to the valved horn.

  2. Giant cutaneous horn in an African woman: a case report

    Directory of Open Access Journals (Sweden)

    Nthumba Peter M

    2007-12-01

    Full Text Available Abstract Introduction A cutaneous horn is a conical projection of hyperkeratotic epidermis. Though grossly resembling an animal horn, it lacks a bony core. These lesions have been well described in Caucasian patients, as well as in a number of Arabic and Asian patients. Case presentation A young female presented with a large 'horn' of five-year duration, arising from a burn scar. Excision and scalp reconstruction were performed. Histology was reported as verrucoid epidermal hyperplasia with cutaneous horn. Conclusion This may be the first documentation of this lesion in a black African. Although likely rare, it should be considered in the differential diagnosis of dermatologic lesions. Up to 40% of cutaneous horns occur as part of a premalignant or malignant lesion, and surgical extirpation with histological examination is thus more important than the curiosity surrounding these lesions.

  3. Horn's Biologically Active Substances - Can We Replace Horns of Critically Endangered Species (Saiga) by Horns of More Abundant Animals?

    Czech Academy of Sciences Publication Activity Database

    Mikšík, Ivan; Romanov, O.

    2017-01-01

    Roč. 7, č. 1 (2017), s. 3-11 ISSN 2210-3155 R&D Projects: GA ČR(CZ) GA15-01948S Institutional support: RVO:67985823 Keywords : biologically active compounds * horn * rhinoceros * saiga * traditional Chinese medicine Subject RIV: CB - Analytical Chemistry, Separation OBOR OECD: Analytical chemistry

  4. A rat uterine horn model of genital tract wound healing.

    Science.gov (United States)

    Schlaff, W D; Cooley, B C; Shen, W; Gittlesohn, A M; Rock, J A

    1987-11-01

    A rat uterine horn model of genital tract wound healing is described. Healing was reflected by acquisition of strength and elasticity, measured by burst strength (BS) and extensibility (EX), respectively. A tensiometer (Instron Corp., Canton, MA) was used to assess these characteristics in castrated and estrogen-supplemented or nonsupplemented animals. While the horn weights (HW), BS, and EX of contralateral horns were not significantly different, the intra-animal variation of HW was 7.2%, BS was 17.7% and EX was 38.2%. In a second experiment, one uterine horn was divided and anastomosed, and the animal given estrogen supplementation or a placebo pellet. Estrogen administration was found to increase BS and EX of anastomosed horns prior to 14 days, but had no beneficial effect at 21 or 42 days. The data suggest that estrogen may be required for optimal early healing of genital tract wounds.

  5. Wave propagation inside the Agbo horn | Nwachukwu | Nigerian ...

    African Journals Online (AJOL)

    ... comparable to that of modern horns and other musical instruments in emitting harmonious vibrations of even and odd harmonics when excited. This investigation has further shown that the “agbo” horns can be used for fourier analysis and amplitude modulation. They also have characteristics similar to violin, piano, oboe, ...

  6. Clinical significance of neonatal parafrontal horn cysts detected by cranial sonography

    International Nuclear Information System (INIS)

    Woo, Jeong Joo; Jung, Myung Ja; Kim, Eun Ryung

    2005-01-01

    The describe the significance, incidence and characteristics of sonographic findings and long term outcomes of parafrontal horn cysts detected by screening cranial sonography done within the first week following birth. 2122 first cranial ultrasound scans performed over a five year period were retrospectively evaluated and 23 neonates with parafrontal horn cysts were found (which are different from secondary cystic lesions). 17 cases had a birth weight of 2400 gm with gestation between 34 and 41 weeks. The size, shape and location of the parafrontal horn cysts and other associated abnormalities shown on the cranial sonogram were evaluated and sequential ultrasound study, maternal records, neonatal events and neurodevelopmental evaluations were retrospectively assessed. Of the 23 subjects, 21 had isolated parafrontal horn cysts and 2 had subependymal hemorrhages. There was no record of any abnormal perinatal history. The cysts were bilateral in 20 neonates and unilateral in the others. The size of the cysts ranged from 3 to 18 mm in diameter (mean 9 mm). Sonographic features of the parafrontal horn cysts were distinctive morphology (elliptical, thin walled) and location (adjacent to the tip of the frontal horn). In 17 of the cases a follow-up cranial sonography was performed, and all parafrontal horn cysts disappeared within 3 to 6 months. Neurodevelopmental outcomes were normal in those 17 cases. Screening cranial sonography of neonates discovers isolated parafrontal horn cyst. The incidence of parafrontal horn cysts in neonates in our study was 1.1%. They are present in the first week following birth and resolve themselves without medical treatment within a few months. In addition, they show normal neurodevelopment. The parafrontal cysts are suspected to be a benign variant of normal neurodevelopment

  7. Duurzame inzetbaarheid van ouderen: resultaten van de eerste twee metingen van STREAM

    NARCIS (Netherlands)

    Heuvel, S. van den; Ybema, J.F; Leijten, F.; Wind, A. de

    2013-01-01

    In deze notitie richten we ons op voorspellers van duurzame inzetbaarheid, waarbij we gebruik maken van de resultaten van de eerste twee metingen van STREAM en van een interviewstudie bij deelnemers aan STREAM. Meer specifiek gaan we na hoe personen met gezondheidsproblemen toch productief kunnen

  8. Studies on thermo-elastic heating of horns used in ultrasonic plastic welding.

    Science.gov (United States)

    Roopa Rani, M; Prakasan, K; Rudramoorthy, R

    2015-01-01

    Ultrasonic welding horn is half wavelength section or tool used to focus the ultrasonic vibrations to the components being welded. The horn is designed in such a way that it maximizes the amplitude of the sound wave passing through it. The ends of the horn represent the displacement anti-nodes and the center the 'node' of the wave. As the horns perform 20,000 cycles of expansion and contraction per second, they are highly stressed at the nodes and are heated owing to thermo-elastic effects. Considerable temperature rise may be observed in the horn, at the nodal region when working at high amplitudes indicating high stress levels leading to failure of horns due to cyclic loading. The limits for amplitude must therefore be evaluated for the safe working of the horn. Horns made of different materials have different thermo-elastic behaviors and hence different temperatures at the nodes and antinodes. This temperature field can be used as a control mechanism for setting the amplitude/weld parameters. Safe stress levels can be predicted using modal and harmonic analyses followed by a stress analysis to study the effect of cyclic loads. These are achieved using 'Ansys'. The maximum amplitude level obtained from the stress analysis is used as input for 'Comsol' to predict the temperature field. The actual temperature developed in the horn during operation is measured using infrared camera and compared with the simulated temperature. From experiments, it is observed that horn made of titanium had the lowest temperature rise at the critical region and can be expected to operate at amplitudes up to 77 μm without suffering failure due to cyclic loading. The method of predicting thermo-elastic stresses and temperature may be adopted by the industry for operating the horn within the safe stress limits thereby extending the life of the horn. Copyright © 2014 Elsevier B.V. All rights reserved.

  9. Horn clause verification with convex polyhedral abstraction and tree automata-based refinement

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick

    2017-01-01

    In this paper we apply tree-automata techniques to refinement of abstract interpretation in Horn clause verification. We go beyond previous work on refining trace abstractions; firstly we handle tree automata rather than string automata and thereby can capture traces in any Horn clause derivations...... underlying the Horn clauses. Experiments using linear constraint problems and the abstract domain of convex polyhedra show that the refinement technique is practical and that iteration of abstract interpretation with tree automata-based refinement solves many challenging Horn clause verification problems. We...... compare the results with other state-of-the-art Horn clause verification tools....

  10. 76 FR 47141 - Big Horn County Resource Advisory Committee

    Science.gov (United States)

    2011-08-04

    ....us , with the words Big Horn County RAC in the subject line. Facsimilies may be sent to 307-674-2668... DEPARTMENT OF AGRICULTURE Forest Service Big Horn County Resource Advisory Committee AGENCY: Forest Service, USDA. [[Page 47142

  11. Some Numerical Aspects on Crowd Motion - The Hughes Model

    KAUST Repository

    Gomes, Diogo A.

    2016-01-06

    Here, we study a crowd model proposed by R. Hughes in [5] and we describe a numerical approach to solve it. This model comprises a Fokker-Planck equation coupled with an Eikonal equation with Dirichlet or Neumann data. First, we establish a priori estimates for the solution. Second, we study radial solutions and identify a shock formation mechanism. Third, we illustrate the existence of congestion, the breakdown of the model, and the trend to the equilibrium. Finally, we propose a new numerical method and consider two numerical examples.

  12. Dynamics of delay-coupled FitzHugh-Nagumo neural rings

    Science.gov (United States)

    Mao, Xiaochen; Sun, Jianqiao; Li, Shaofan

    2018-01-01

    This paper studies the dynamical behaviors of a pair of FitzHugh-Nagumo neural networks with bidirectional delayed couplings. It presents a detailed analysis of delay-independent and delay-dependent stabilities and the existence of bifurcated oscillations. Illustrative examples are performed to validate the analytical results and to discover interesting phenomena. It is shown that the network exhibits a variety of complicated activities, such as multiple stability switches, the coexistence of periodic and quasi-periodic oscillations, the coexistence of periodic and chaotic orbits, and the coexisting chaotic attractors.

  13. AA, Inner Conductor of Magnetic Horn

    CERN Multimedia

    CERN PhotoLab

    1979-01-01

    Antiprotons emerging at large angles from the production target (hit by an intense 26 GeV proton beam from the PS), were focused into the acceptance of the injection line of the AA by means of a "magnetic horn" (current-sheet lens). Here we see an early protype of the horn's inner conductor, machined from solid aluminium to a thickness of less than 1 mm. The 1st version had to withstand pulses of 150 kA, 15 us long, every 2.4 s. See 8801040 for a later version.

  14. IN SITU STEAM ENHANCED RECOVERY PROCESS - HUGHES ENVIRONMENTAL SYSTEMS, INC. - INNOVATIVE TECHNOLOGY EVALUATION REPORT

    Science.gov (United States)

    This Innovative Technology Evaluation report summarizes the findings of an evaluation of the in situ Steam Enhanced Recovery Process (SERP) operated by Hughes Environmental Systems, Inc. at the Rainbow Disposal facility in Huntington Beach, California. he technology demonstration...

  15. Elaborate horns in a giant rhinoceros beetle incur negligible aerodynamic costs.

    Science.gov (United States)

    McCullough, Erin L; Tobalske, Bret W

    2013-05-07

    Sexually selected ornaments and weapons are among nature's most extravagant morphologies. Both ornaments and weapons improve a male's reproductive success; yet, unlike ornaments that need only attract females, weapons must be robust and functional structures because they are frequently tested during male-male combat. Consequently, weapons are expected to be particularly costly to bear. Here, we tested the aerodynamic costs of horns in the giant rhinoceros beetle, Trypoxylus dichotomus. We predicted that the long, forked head horn would have three main effects on flight performance: increased body mass, an anterior shift in the centre of mass and increased body drag. We found that the horns were surprisingly lightweight, and therefore had a trivial effect on the male beetles' total mass and mass distribution. Furthermore, because beetles typically fly at slow speeds and high body angles, horns had little effect on total body drag. Together, the weight and the drag of horns increased the overall force required to fly by less than 3 per cent, even in the largest males. Because low-cost structures are expected to be highly evolutionarily labile, the fact that horns incur very minor flight costs may have permitted both the elaboration and diversification of rhinoceros beetle horns.

  16. Bepaling van de kwaliteit van reinigingsprocessen.

    NARCIS (Netherlands)

    Terpstra, P.M.J.

    1993-01-01

    Ingegaan wordt op de operationalisering van het begrip schoon voor verschillende toepassingen. Daarna worden twee recent ontwikkelde onderzoekmethoden gepresenteerd voor de meting van respectievelijk het reinigingseffect van textiel reinigen en het reinigen van harde vloeroppervlakken en enkele met

  17. Verbeteren van functionele fitheid van brandweermensen

    NARCIS (Netherlands)

    van Orden, Claudia Y.D.

    Posterpresentatie over IAG4-project 'Functional Fitness Monitor', een methodiek voor het verbeteren van functionele fitheid van brandweermensen door een combinatie van meten, presenteren van feedback en coaching. Gepresenteerd op Symposium Healthy Work: Good for Business, gehouden op 29 april 2016

  18. Clinical significance of neonatal parafrontal horn cysts detected by cranial sonography

    Energy Technology Data Exchange (ETDEWEB)

    Woo, Jeong Joo [Eulji University of Medicine, Daejeon (Korea, Republic of); Jung, Myung Ja [Sanggye Paik Hospital, Inje University of Medicine, Seoul (Korea, Republic of); Kim, Eun Ryung [Sungae General Hospital, Seoul (Korea, Republic of)

    2005-07-15

    The describe the significance, incidence and characteristics of sonographic findings and long term outcomes of parafrontal horn cysts detected by screening cranial sonography done within the first week following birth. 2122 first cranial ultrasound scans performed over a five year period were retrospectively evaluated and 23 neonates with parafrontal horn cysts were found (which are different from secondary cystic lesions). 17 cases had a birth weight of < 2400 gm with gestation between 30 and 35 weeks, 6 cases had a birth weight of > 2400 gm with gestation between 34 and 41 weeks. The size, shape and location of the parafrontal horn cysts and other associated abnormalities shown on the cranial sonogram were evaluated and sequential ultrasound study, maternal records, neonatal events and neurodevelopmental evaluations were retrospectively assessed. Of the 23 subjects, 21 had isolated parafrontal horn cysts and 2 had subependymal hemorrhages. There was no record of any abnormal perinatal history. The cysts were bilateral in 20 neonates and unilateral in the others. The size of the cysts ranged from 3 to 18 mm in diameter (mean 9 mm). Sonographic features of the parafrontal horn cysts were distinctive morphology (elliptical, thin walled) and location (adjacent to the tip of the frontal horn). In 17 of the cases a follow-up cranial sonography was performed, and all parafrontal horn cysts disappeared within 3 to 6 months. Neurodevelopmental outcomes were normal in those 17 cases. Screening cranial sonography of neonates discovers isolated parafrontal horn cyst. The incidence of parafrontal horn cysts in neonates in our study was 1.1%. They are present in the first week following birth and resolve themselves without medical treatment within a few months. In addition, they show normal neurodevelopment. The parafrontal cysts are suspected to be a benign variant of normal neurodevelopment.

  19. a Design of the Driver Airbag Module with Floating Horn Assembly

    Science.gov (United States)

    Suh, Chang-Min; Lee, Young-Hoon; Suh, Duck-Young

    The driver airbag system is designed as a supplemental restraint system in addition to the seatbelt, and is designed to protect the driver's head and chest against severe injury by a device that is actuated in case of vehicle's fronted impact. Deployment of an airbag module with floating horn assembly is a highly dynamic process. The concept of driver airbag module with floating horn assembly and aluminum emblem is presented as a useful parameter when the airbag deploys and the energy is evaluated as performance factor in airbag module. Floating horn assembly is also one of the major factors for driver airbag module design to perform its horn function and check the package between driver airbag module and steering wheel. This study on the design of driver airbag module with floating horn assembly proved the feasibility as a new safety device. However, the system level study is needed for decrease of passenger injury. This study can be used for the implementation of a prototype of DABM with floating horn device.

  20. Blood Brothers: Albert and Allen Hughes in the Belly of the Hollywood Beast.

    Science.gov (United States)

    Gates, Henry Louis, Jr.

    1994-01-01

    Recounts an interview with the Hughes brothers, who are twin black men who produced the film "Menace 2 Society," which is a film about urban delinquency and crime among black adolescents. Their comments include thoughts on racism, media stereotyping, being black in America, and their experiences with Hollywood. (GLR)

  1. Radial tear of posterior horn of the medial meniscus and osteonecrosis of the knee

    International Nuclear Information System (INIS)

    Motoyama, Tatsuo; Ihara, Hidetoshi; Kawashima, Mahito

    2003-01-01

    We studied the relation between a radial tear of the posterior horn of the medial meniscus and osteonecrosis of the knee. Thirty-eight knees of 37 patients were diagnosed as medial meniscus tear and received arthroscopic knee surgery. We divided them into two groups: knees having radial tear of the posterior horn of the medial meniscus (posterior horn group) and knees containing radial tear except for posterior horn, horizontal tear, degenerative tear, and flap tear of the medial meniscus (non-posterior horn group). The posterior horn group consisted of 14 knees (average age: 65.1 years old) and the non-posterior horn group consisted of 24 knees (average age: 59.6 years old). All cases underwent MRI before arthroscopy. MRI findings were classified into three types (typical osteonecrosis, small osteonecrosis, and non-osteonecrosis). In the posterior horn group, typical osteonecrosis were five knees and small osteonecrosis were five knees, while in the non-posterior horn group only three knees were small osteonecrosis. These findings suggest the relevance between radial tear of the posterior horn of the medial meniscus and osteonecrosis of the knee (Mann-Whitney test p<0.01). The etiology of spontaneous osteonecrosis of the knee joint is unknown, however one etiology could be the radial tear of the posterior horn of the medial meniscus. (author)

  2. 76 FR 7810 - Big Horn County Resource Advisory Committee

    Science.gov (United States)

    2011-02-11

    ..., Wyoming 82801. Comments may also be sent via e-mail to [email protected] , with the words Big... DEPARTMENT OF AGRICULTURE Forest Service Big Horn County Resource Advisory Committee AGENCY: Forest Service, USDA. ACTION: Notice of meeting. SUMMARY: The Big Horn County Resource Advisory Committee...

  3. Overview of recent focussing horns for the BNL neutrino program

    International Nuclear Information System (INIS)

    Carroll, A.; Leonhardt, W.; Monaghan, R.

    1987-01-01

    In this paper we present an overview of the two magnetic focussing horn systems recently constructed, installed, and operated in the fast extracted beam for the neutrino physics program at the AGS. These horn systems consist of a number of interrelated subsystems which operate together to produce a very intense, parallel beam of pions. The strong magnetic focussing is generated by pulsing the coaxial structures of the horns with currents of up to 300kA during the 2.5 μsec proton beam spill. Because of their high levels of induced radioactivity, these horns had to be designed for reliability and ease in installation. Both horn systems built had the same overall features, but the broad band system focussed pions over as large a momentum band as possible to maximize the neutrino flux. The narrow band systems restricted the momentum to +-15% of 3 GeV/c to provide kinematic constraints for the experiment. A synopsis of the design concepts and critical engineering requirements is given. Detailed discussion of the subsystems follows in the subsequent papers

  4. Coursing with Coils: The Only Orchestral Instrument Harder Than the French Horn

    OpenAIRE

    Sarah R. Plumley

    2016-01-01

    Playing the horn has become not only more sophisticated and accurate, but simpler and more efficient for the horn player. The natural horn, used in a variety ways in early history, demanded an incredible level of skill and precision, more than our valved horn today in some ways because it required a more accurate ear, more embouchure dexterity, and the necessity of wrangling crooks for different keys. Thus, it required many practiced skills of the player that are no longer as necessary as the...

  5. Occupational cow horn eye injuries in Ibadan, Nigeria | Ibrahim ...

    African Journals Online (AJOL)

    This case series aims to describe the clinical features, management, and outcome of occupational eye injuries caused by cow horns and to recommend possible preventive measures. A review of patients with cow horn inflicted eye injuries seen at the University College Hospital, Ibadan between January 2006, and ...

  6. Preference of redear sunfish on zebra mussels and rams-horn snails

    Science.gov (United States)

    French, John R. P.; Morgan, Michael N.

    1995-01-01

    We tested prey preferences of adult (200- to 222-mm long) redear sunfish (Lepomis microlophus) on two size classes of zebra mussels (Dreissena polymorpha) and two-ridge rams-horns (Helisoma anceps) in experimental aquaria. We also tested physical limitations on consuming these mollusks and determined prey bioenergetic profitability. Redear sunfish strongly preferred rams-horns over zebra mussels, but they displayed no size preference for either prey. Ingestion was not physically limited since both prey species up to 15-mm long fit within the pharyngeal gapes of redear sunfish. Rams-horns were more bioenergetically profitable than zebra mussels and ingestion of rams-horn shell fragments was about three times less than zebra mussels. Rams-horns were somewhat more resistant to shell-crushing, but all size ranges of both prey species tested were crushable by redear sunfish. These studies suggested that the redear sunfish should not be considered a panacea for biological control of zebra mussels.

  7. Combating Rhino Horn Trafficking: The Need to Disrupt Criminal Networks.

    Directory of Open Access Journals (Sweden)

    Timothy C Haas

    Full Text Available The onslaught on the World's wildlife continues despite numerous initiatives aimed at curbing it. We build a model that integrates rhino horn trade with rhino population dynamics in order to evaluate the impact of various management policies on rhino sustainability. In our model, an agent-based sub-model of horn trade from the poaching event up through a purchase of rhino horn in Asia impacts rhino abundance. A data-validated, individual-based sub-model of the rhino population of South Africa provides these abundance values. We evaluate policies that consist of different combinations of legal trade initiatives, demand reduction marketing campaigns, increased anti-poaching measures within protected areas, and transnational policing initiatives aimed at disrupting those criminal syndicates engaged in horn trafficking. Simulation runs of our model over the next 35 years produces a sustainable rhino population under only one management policy. This policy includes both a transnational policing effort aimed at dismantling those criminal networks engaged in rhino horn trafficking-coupled with increases in legal economic opportunities for people living next to protected areas where rhinos live. This multi-faceted approach should be the focus of the international debate on strategies to combat the current slaughter of rhino rather than the binary debate about whether rhino horn trade should be legalized. This approach to the evaluation of wildlife management policies may be useful to apply to other species threatened by wildlife trafficking.

  8. Markov chain Monte Carlo approach to parameter estimation in the FitzHugh-Nagumo model

    DEFF Research Database (Denmark)

    Jensen, Anders Christian; Ditlevsen, Susanne; Kessler, Mathieu

    2012-01-01

    Excitability is observed in a variety of natural systems, such as neuronal dynamics, cardiovascular tissues, or climate dynamics. The stochastic FitzHugh-Nagumo model is a prominent example representing an excitable system. To validate the practical use of a model, the first step is to estimate...

  9. The natural horn as an efficient sound radiating system ...

    African Journals Online (AJOL)

    Results obtained showed that the locally made horn are efficient sound radiating systems and are therefore excellent for sound production in local musical renditions. These findings, in addition to the portability and low cost of the horns qualify them to be highly recommended for use in music making and for other purposes ...

  10. Verdeling van oxytetraxycline (afkomstig van versleping) in diervoeders

    NARCIS (Netherlands)

    Stolker, A.A.M.; Zuidema, T.; Egmond, van H.J.; Jong, de J.; Haelermans, P.J.M.; Hooglugt, J.H.

    2012-01-01

    De laatste jaren is er een toenemende aandacht voor de mogelijke bijdrage van therapeutisch gebruik van antibiotica in de dierhouderij op de ontwikkeling van antimicrobiële resistentie. Een additionele bron van blootstelling van landbouwhuisdieren aan antibiotica is versleping via diervoeders. In

  11. Derivation of Conditions for the Normal Gain Behavior of Conical Horns

    Directory of Open Access Journals (Sweden)

    Chin Yeng Tan

    2007-01-01

    Full Text Available Monotonically increasing gain-versus-frequency pattern is in general expected to be a characteristic of aperture antennas that include the smooth-wall conical horn. While optimum gain conical horns do naturally exhibit this behavior, nonoptimum horns need to meet certain criterion: a minimum axial length for given aperture diameter, or, alternatively, a maximum aperture diameter for the given axial length. In this paper, approximate expressions are derived to determine these parameters.

  12. Preliminary AD-Horn Thermomechanical and Electrodynamic Simulations

    CERN Document Server

    AUTHOR|(CDS)2095747; Horvath, David; Calviani, Marco

    2016-01-01

    As part of the Antiproton Decelerator (AD) target area consolidation activities planned for LS2, it has been necessary to perform a comprehensive study of the thermo-structural behaviour of the AD magnetic horn during operation, in order to detail specific requirements for the upgrade projects and testing procedures. The present work illustrates the preliminary results of the finite element analysis carried out to evaluate the thermal and structural behaviour of the device, as well as the methodology used to model and solve the thermomechanical and electrodynamic simulations performed in the AD magnetic horn.

  13. Alpine ibex males grow large horns at no survival cost for most of their lifetime.

    Science.gov (United States)

    Toïgo, Carole; Gaillard, Jean-Michel; Loison, Anne

    2013-12-01

    Large horns or antlers require a high energy allocation to produce and carry both physiological and social reproductive costs. Following the principle of energy allocation that implies trade-offs among fitness components, growing large weapons early in life should thus reduce future growth and survival. Evidence for such costs is ambiguous, however, partly because individual heterogeneity can counterbalance trade-offs. Individuals with larger horns or antlers may be of better quality and thus have a greater capacity to survive. We investigated trade-offs between male early horn growth and future horn growth, baseline mortality, onset of actuarial senescence, and rate of ageing in an Alpine ibex (Capra ibex ibex) population. Horn growth of males in early life was positively correlated to their horn length throughout their entire life. Cohort variation and individual heterogeneity both accounted for among-individual variation in horn length, suggesting both long-lasting effects of early life conditions and individual-specific horn growth trajectories. Early horn growth did not influence annual survival until 12 years of age, indicating that males do not invest in horn growth at survival costs over most of their lifetime. However, males with fast-growing horns early in life tended to have lower survival at very old ages. Individual heterogeneity, along with the particular life-history tactic of male ibex (weak participation to the rut until an old age after which they burn out in high mating investment), are likely to explain why the expected trade-off between horn growth and survival does not show up, at least until very old ages.

  14. Pyrosequencing-based analysis of the microbiome associated with the horn fly, Haematobia irritans.

    Directory of Open Access Journals (Sweden)

    Azhahianambi Palavesam

    Full Text Available The horn fly, Haematobia irritans, is one of the most economically important pests of cattle. Insecticides have been a major element of horn fly management programs. Growing concerns with insecticide resistance, insecticide residues on farm products, and non-availability of new generation insecticides, are serious issues for the livestock industry. Alternative horn fly control methods offer the promise to decrease the use of insecticides and reduce the amount of insecticide residues on livestock products and give an impetus to the organic livestock farming segment. The horn fly, an obligatory blood feeder, requires the help of microflora to supply additional nutrients and metabolize the blood meal. Recent advancements in DNA sequencing methodologies enable researchers to examine the microflora diversity independent of culture methods. We used the bacterial 16S tag-encoded FLX-titanium amplicon pyrosequencing (bTEFAP method to carry out the classification analysis of bacterial flora in adult female and male horn flies and horn fly eggs. The bTEFAP method identified 16S rDNA sequences in our samples which allowed the identification of various prokaryotic taxa associated with the life stage examined. This is the first comprehensive report of bacterial flora associated with the horn fly using a culture-independent method. Several rumen, environmental, symbiotic and pathogenic bacteria associated with the horn fly were identified and quantified. This is the first report of the presence of Wolbachia in horn flies of USA origin and is the first report of the presence of Rikenella in an obligatory blood feeding insect.

  15. Selectie van Italiaanse werkwoordsvormen op basis van frequentieonderzoek

    NARCIS (Netherlands)

    Boer, M.G. de

    2009-01-01

    SAMENVATTING Dit artikel is een vroege recensie (mei 1972) van het LIF, de frequentielijst van IBM Italia uit 1971. De auteur concentreert zich op de verschillen met het project van Juilland, dat als uitgangspunt voor het LIF heeft gefungeerd. Op grond van de gegevens van het LIF is een basislijst

  16. Novel Insights into the Bovine Polled Phenotype and Horn Ontogenesis in Bovidae

    Science.gov (United States)

    Allais-Bonnet, Aurélie; Grohs, Cécile; Medugorac, Ivica; Krebs, Stefan; Djari, Anis; Graf, Alexander; Fritz, Sébastien; Seichter, Doris; Baur, Aurélia; Russ, Ingolf; Bouet, Stéphan; Rothammer, Sophie; Wahlberg, Per; Esquerré, Diane; Hoze, Chris; Boussaha, Mekki; Weiss, Bernard; Thépot, Dominique; Fouilloux, Marie-Noëlle; Rossignol, Marie-Noëlle; van Marle-Köster, Este; Hreiðarsdóttir, Gunnfríður Elín; Barbey, Sarah; Dozias, Dominique; Cobo, Emilie; Reversé, Patrick; Catros, Olivier; Marchand, Jean-Luc; Soulas, Pascal; Roy, Pierre; Marquant-Leguienne, Brigitte; Le Bourhis, Daniel; Clément, Laetitia; Salas-Cortes, Laura; Venot, Eric; Pannetier, Maëlle; Phocas, Florence; Klopp, Christophe; Rocha, Dominique; Fouchet, Michel; Journaux, Laurent; Bernard-Capel, Carine; Ponsart, Claire; Eggen, André; Blum, Helmut; Gallard, Yves; Boichard, Didier; Pailhoux, Eric; Capitan, Aurélien

    2013-01-01

    Despite massive research efforts, the molecular etiology of bovine polledness and the developmental pathways involved in horn ontogenesis are still poorly understood. In a recent article, we provided evidence for the existence of at least two different alleles at the Polled locus and identified candidate mutations for each of them. None of these mutations was located in known coding or regulatory regions, thus adding to the complexity of understanding the molecular basis of polledness. We confirm previous results here and exhaustively identify the causative mutation for the Celtic allele (PC) and four candidate mutations for the Friesian allele (PF). We describe a previously unreported eyelash-and-eyelid phenotype associated with regular polledness, and present unique histological and gene expression data on bovine horn bud differentiation in fetuses affected by three different horn defect syndromes, as well as in wild-type controls. We propose the ectopic expression of a lincRNA in PC/p horn buds as a probable cause of horn bud agenesis. In addition, we provide evidence for an involvement of OLIG2, FOXL2 and RXFP2 in horn bud differentiation, and draw a first link between bovine, ovine and caprine Polled loci. Our results represent a first and important step in understanding the genetic pathways and key process involved in horn bud differentiation in Bovidae. PMID:23717440

  17. ’n Oorsig van die bepaling van die vroeë bakterisidiese aktiwiteit van verskeie antituberkulosemiddels

    Directory of Open Access Journals (Sweden)

    P. R. Donald

    2003-06-01

    Full Text Available Die vroeë bakterisidiese aktiwiteit (VBA van ’n antituberkulosemiddel is die daaglikse afname van M tuberculosis in log10 kolonievormende eenhede per ml sputum, tydens die eerste twee dae van behandeling met die middel. Dit weerspieël die vermoë van ’n middel om aktief metaboliserende organismes in tuberkulose-longholtes te dood. Dit is ’n relatief goedkoop metode om in ’n klein groep pasiënte die antituberkulose-aktiwiteit van ’n middel, binne maande, in vivo te evalueer. Hierdie artikel som ons ondervinding op tydens sewe gepubliseerde VBA-studies, en die bronne van variasie in die prosedure word identifiseer. Die pasiënte in hierdie studies was gemiddeld 33 jaar oud, met ’n gemiddelde gewig van 50 kg en 55% het ekstensiewe of massiewe longaantasting gehad. Die hoogste VBA-waardes (0,50-0,66 is gevind in pasiënte wat isoniasied ontvang het, en die laagste waardes (0,05 en 0,09 respektiewelik was gevind in pasiënte wat die aminoglikosiede amikasien en paromomisien, albei in doserings van 15 mg/kg liggaamsgewig, ontvang het. Die algehele variasie in die VBA van 248 pasiënte was 0,0312, en die variasie toegeskryf aan die proses van sputumproduksie en -versameling was 0,0223. Dit blyk dat die verskillende aspekte van sputumproduksie en -versameling, betrokke by die lewering van ’n verteenwoordigende sputummonster, ’n groter bydrae maak tot variasie tydens die prosedure as die laboratoriumaspekte van die tegniek. Die keuring van pasiënte vir insluiting in VBA-studies, en hulle vermoë om saam te werk om ’n verteenwoordigende sputummonster te produseer, is van deurslaggewende belang in die suksesvolle voltooiing van VBA-studies.

  18. LS1 Report: Thank you magnetic horn!

    CERN Multimedia

    Antonella Del Rosso & Katarina Anthony

    2014-01-01

    Experiments at the Antimatter Decelerator (AD) have been receiving beams since the beginning of this week. There is a crucial element at the heart of the chain that prepares the antiproton beam: the so-called magnetic horn, a delicate piece of equipment that had to be refurbished during LS1 and that is now showing just how well it can perform.   View from the top of the target and horn trolley, along the direction of the beam. Antiprotons for the AD are produced by smashing a beam of protons from the PS onto an iridium target. However, the particles produced by the nuclear interactions are emitted at very wide angles; without a focussing element, all these precious particles would be lost. “A magnetic horn is placed at the exit of the target to focus back a large fraction of the negative particles, including antiprotons, parallel to the beam line and with the right momentum,” explains Marco Calviani, physicist in the EN Department and the expert in charge of the AD targe...

  19. Chloroplast DNA haplotype samenstelling van eikenopstanden (categorie "van bekende origine") van de Rassenlijst van Bomen; een aanvullende methode voor identificatie van autochtoniteit

    NARCIS (Netherlands)

    Buiteveld, J.; Boerwinkel, M.C.; Bovenschen, J.; Kranenborg, K.G.; Vries, de S.M.G.

    2005-01-01

    Tegenwoordig kan autochtoon materiaal op de Rassenlijst van Bomen geplaatst worden in de categorie `van bekende origine¿ en heeft daardoor een `officiële¿ status. Identificatie van autochtone opstanden blijft echter nog een lastige zaak. Momenteel worden autochtone opstanden geïdentificeerd met de

  20. 9 CFR 95.12 - Bones, horns, and hoofs; importations permitted subject to restrictions.

    Science.gov (United States)

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Bones, horns, and hoofs; importations... ENTRY INTO THE UNITED STATES § 95.12 Bones, horns, and hoofs; importations permitted subject to restrictions. Bones, horns, and hoofs offered for importation which do not meet the conditions or requirements...

  1. Biologische effectiviteit van bespuitingen: effecten van druppelgrootte en waterkwaliteit

    NARCIS (Netherlands)

    Zande, van de J.C.; Schans, van der D.A.; Koster, A.T.J.

    2004-01-01

    Deze rapportage beschrijft de invloed van watervolume, druppelgrootte en kwaliteit van het tankmengsel op de biologische effectiviteit van bespuitingen. Onder kwaliteit van het tankmengsel wordt in dit verband verstaan: temperatuur, hardheid, pH en zoutgehalte (chloor en ijzerzouten) van de

  2. Wave power plant at Horns Rev. Screening[Denmark]; Boelgekraftanlaeg ved Horns Rev. Screening

    Energy Technology Data Exchange (ETDEWEB)

    Soerensen, Hans C.; Nielsen, Kim; Steenstrup, P.R.; Friis-Madsen, E.; Wigant, L.

    2005-12-15

    The objective for the analysis has been to establish data for the sea at Horns Rev wind farm in the North Sea in order to assess the opportunity for using the site as test site for demonstration of wave energy devices exemplified by three different devices under development in Denmark. For comparison alternative sites like Hanstholm, Samsoe and Nissum Bredning are also assessed as well as the test centre EMEC at the Orkney Islands and the proposed test site Wave Hub at the north coast of Cornwall. The analysis shows that it is possible without major technical problems to connect 2-4 MW power generated by 3 different wave energy devices (AquaBuOY, Wave Star Energy and Wave Dragon) to the wind farm at Horns Rev (www.hornsrev.dk). The expenses for connection and regulation within the wind farm is about 200,000 DKK (30,00 EURO). On top of this comes the cost for individual sub sea cable connection to the wave devices, pull in of the sub sea cable through the existing J-tube in turbine T04 and the necessary regulation/control system in the individual wave devices to avoid damaging the power system in case of too high production. The analysis of the co-production of wind and wave power is dealt with in a separate report which shows that over a time period of half to one hour the time variation for wind generated electricity is 3 times as large as for wave energy generated power based on the actual measurement at Horns Rev. Further on the analysis shows that the wave generated power is more predictable than wind energy generated power as the power from the waves first is present about 2 hours after the wind is acting and last for 3 to 6 hours after the wind dies out; 6 to 12 hours with wind from west. The time is off course strongly depending of the direction of the wind i.e. the fetch. As this special report has a more general scope than the analysis as such it is reported in English (Annex Report II). The analysis shows that it is up to the individual device developer

  3. A ruptured rudimentary horn of a unicornuate uterus at 18 weeks ...

    African Journals Online (AJOL)

    76000 pregnancies. Rupture of the horn in pregnancy is considered the most serious and common complication of rudimentary horns. The investigation of choice is considered to be magnetic resonance imaging (MRI). Evaluation of renal tract ...

  4. Tree dimension in verification of constrained Horn clauses

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick; Ganty, Pierre

    2018-01-01

    In this paper, we show how the notion of tree dimension can be used in the verification of constrained Horn clauses (CHCs). The dimension of a tree is a numerical measure of its branching complexity and the concept here applies to Horn clause derivation trees. Derivation trees of dimension zero c...... algorithms using these constructions to decompose a CHC verification problem. One variation of this decomposition considers derivations of successively increasing dimension. The paper includes descriptions of implementations and experimental results....

  5. Verslag van de voorstudie: Paddenstoelen bedrijf van de toekomst

    NARCIS (Netherlands)

    Tuijl, van B.A.J.; Bos, A.P.; Sonnenberg, A.S.M.

    2013-01-01

    Het rapport ‘Paddenstoelenbedrijf van de toekomst’ is het resultaat van een uitgebreid vooronderzoek en geeft de eerste aanzet tot het creëren van gemeenschappelijke visie van de sector op een betere toekomst voor paddenstoelenkwekerijen. Het rapport doet verslag van een reeks interviews en een

  6. Samenstelling van de vluchtige olie van Origanum vulgare L. ssp. vulgare gedurende de ontwikkeling van de plant

    NARCIS (Netherlands)

    Maarse, Henk

    1971-01-01

    INLEIDING EN DOEL VAN HET ONDERZOEK Vele onderzoekers hebben de laatste jaren de vorming van de verbindingen in vluchtige olien van planten bestudeerd door het bepalen van de verandering in de samenstelling van de vluchtige olie tijdens de groei van de plant. Lemli (68) wees als eerste op de

  7. Howard Hughes and the Cold War Aviation Film Jet Pilot (1957

    Directory of Open Access Journals (Sweden)

    Richard Andrew Voeltz

    2016-10-01

    War.  But sexual intimacy, conspicuous consumption, and aviation technology also inserted themselves into the perfect safetly of American domestic bliss. This paper will analyze how the eccentric Cold War romantic comedy Jet Pilot (1957 so associated with the compulsiveness of Howard Hughes, produced and written by Jules Furthman, directed ( partially by Josef von Sternburg and starring John Wayne and Janet Leigh, reflects all these themes making it the paradigmatic Cold Film that remains a camp classic from the American popular cultyre of the 1950s.

  8. Onderzoek naar vermindering van de bijvangst van een boomkortuig

    NARCIS (Netherlands)

    Marlen, van B.; Ybema, M.S.; Duijn, van J.B.

    2005-01-01

    In het kader van EU-project RECOVERY werden vergelijkende visserij- en selectiviteitsproeven uitgevoerd in 2002 en 2003 aan boord van MS “Tridens” aan 12 m boomkortuigen. De resultaten van een negental vistuigproeven zijn hier gegeven, gericht op het bepalen van het effect van een grote mazen kap

  9. "Comments on Greenhow, Robelia, and Hughes": Toward a Creative Social Web for Learners and Teachers

    Science.gov (United States)

    Zhang, Jianwei

    2009-01-01

    This article commenting on Greenhow, Robelia, and Hughes (2009) examines the potential strengths and weaknesses of Web 2.0 in supporting student collaborative creativity in light of sociocultural conditions of knowledge creation. Weaknesses and challenges are identified related to the embedded and dispersed representation of community knowledge,…

  10. Hugh L. Dryden's Career in Aviation and Space. No. 5; Monographs in Aerospace History

    Science.gov (United States)

    Gorn, Michael H.

    1996-01-01

    Hugh Latimer Dryden led a life rich in paradox. Born in obsurity, he attained international prominence. Indifferent to self-advancement, he nonetheless rose to the pinnacle of the aeronautics profession and subsequently assumed a pivotal role in the initial period of space exploration. Although a research scientist of the first order, he nurtured within himself a profoundly spiritual outlook.

  11. Die Romeinse nastrewing van onsterflikheid deur middel van memoria

    Directory of Open Access Journals (Sweden)

    D. R. Fouché

    1985-05-01

    Full Text Available Benewens die omvangryke en nasionale manifestasies van die oorspronklike onsterflikheidsgedagte in die Romeinse gemeenskap, vind ons by die Romein op kleiner skaal in groepe of indiwidueel ’n strewe na onsterflikheid langs die weg van memoria. Soos aangetoon sal word, verskil die pogings van die verskillende groepe radikaal van mekaar, hoewel die strewe en einddoel dieselfde bly, naamlik om deur die daarstelling van memoria op die gebied van woord of daad onsterflikheid te bekom.

  12. Het planetarium van Hartog van Laun

    Directory of Open Access Journals (Sweden)

    Hans Hooijmaaijers

    2009-12-01

    Full Text Available The instrument maker Hartog van Laun devised a special table for an orrery, a lunarium and a tellurium. Van Laun made these instruments for educational purposes, but what makes his planetariums so interesting is the great variety and accuracy of demonstrations one can perform with them. In this paper I will deal with Van Laun and his instrument makers business. I will outline the design of the planetarium and some of the firm’s other instruments. Furthermore I will demonstrate that the detailed description of the planetarium made by Professor Jan Hendrik van Swinden boosted the spread of the instrument.

  13. Teleportation of continuous variable multimode Greeberger-Horne-Zeilinger entangled states

    International Nuclear Information System (INIS)

    He Guangqiang; Zhang Jingtao; Zeng Guihua

    2008-01-01

    Quantum teleportation protocols of continuous variable (CV) Greeberger-Horne-Zeilinger (GHZ) and Einstein-Podolsky-Rosen (EPR) entangled states are proposed, and are generalized to teleportation of arbitrary multimode GHZ entangled states described by Van Loock and Braunstein (2000 Phys. Rev. Lett. 84 3482). Each mode of a multimode entangled state is teleported using a CV EPR entangled pair and classical communication. The analytical expression of fidelity for the multimode Gaussian states which evaluates the teleportation quality is presented. The analytical results show that the fidelity is a function of both the squeezing parameter r, which characterizes the multimode entangled state to be teleported, and the channel parameter p, which characterizes the EPR pairs shared by Alice and Bob. The fidelity increases with increasing p, but decreases with increasing r, i.e., it is more difficult to teleport the more perfect multimode entangled states. The entanglement degree of the teleported multimode entangled states increases with increasing both r and p. In addition, the fact is proved that our teleportation protocol of EPR entangled states using parallel EPR pairs as quantum channels is the best case of the protocol using four-mode entangled states (Adhikari et al 2008 Phys. Rev. A 77 012337).

  14. Computational modeling and experimental studies of the dynamic performance of ultrasonic horn profiles used in plastic welding.

    Science.gov (United States)

    Roopa Rani, M; Rudramoorthy, R

    2013-03-01

    Ultrasonic horns are tuned components designed to vibrate in a longitudinal mode at ultrasonic frequencies. Reliable performance of such horns is normally decided by the uniformity of vibration amplitude at the working surface and the stress developed during loading condition. The horn design engineer must pay particular attention to designing a tool that will produce the desired amplitude without fracturing. The present work discusses horn configurations which satisfy these criteria and investigates the design requirements of horns in ultrasonic system. Different horn profiles for ultrasonic welding of thermoplastics have been characterized in terms of displacement amplitude and von-Mises stresses using modal and harmonic analysis. To validate the simulated results, five different horns are fabricated from Aluminum, tested and tuned to the operating frequency. Standard ABS plastic parts are welded using these horns. Temperature developed during the welding of ABS test parts using different horns is recorded using sensors and National Instruments (NIs) data acquisition system. The recorded values are compared with the predicted values. Experimental results show that welding using a Bezier horn has a high interface temperature and the welded joints had higher strength as compared to the other horn profiles. Copyright © 2012 Elsevier B.V. All rights reserved.

  15. ‘n Kritiese bespreking van roskam se seining van apartheid as grondslag van die Suid-afrikaanse samelewing

    Directory of Open Access Journals (Sweden)

    N. van Loggerenberg

    1963-03-01

    Full Text Available Segregasie is al deur vele ondersoekers histories tot ’n tradisie uit die stigtingsjaar 1652 met die aankoms van Jan van Riebeeck herlei. Roskam sion dit egter as 'n beleid wat veel later aanvaar is. Hy sien dit as beleid wat bepaalde groepe van die bevolking as 'n politieke eenheid, kragtens ’n sosiale hiërargie, van mekaar wil afskei, isoleer. Dit is vir  hom duidelik dat die politieke eenheid van Ordinansie 50 van 1828 nooit werklikheid geword het nie, en die tradisie van blanke heerskappy pas vir liom as heleid beter in die huidige situasic as segregasie. Roskam is dan van oordeel dat ..white supremacy” daarom die juiste en omskrywende betekenis van segregasie is.

  16. The role of doublesex in the evolution of exaggerated horns in the Japanese rhinoceros beetle.

    Science.gov (United States)

    Ito, Yuta; Harigai, Ayane; Nakata, Moe; Hosoya, Tadatsugu; Araya, Kunio; Oba, Yuichi; Ito, Akinori; Ohde, Takahiro; Yaginuma, Toshinobu; Niimi, Teruyuki

    2013-06-01

    Male-specific exaggerated horns are an evolutionary novelty and have diverged rapidly via intrasexual selection. Here, we investigated the function of the conserved sex-determination gene doublesex (dsx) in the Japanese rhinoceros beetle (Trypoxylus dichotomus) using RNA interference (RNAi). Our results show that the sex-specific T. dichotomus dsx isoforms have an antagonistic function for head horn formation and only the male isoform has a role for thoracic horn formation. These results indicate that the novel sex-specific regulation of dsx during horn morphogenesis might have been the key evolutionary developmental event at the transition from sexually monomorphic to sexually dimorphic horns.

  17. Detectie van ziektesymptomen met behulp van fluorescentiebeelden

    NARCIS (Netherlands)

    Loon, van P.C.C.

    2004-01-01

    Rapport over de positie van de biologische paddestoelenteelt op intersectoraal en (inter)-regionaal niveau. Het overzicht in tabel- en schemavorm van de stromen grondstoffen en producten verduidelijkt de intersectorale positie van de champignonteelt. Dit kan een aanzet zijn bij het signaleren en

  18. Een revisie van de taxonomie van gifkikkers

    NARCIS (Netherlands)

    Poelman, E.H.

    2007-01-01

    Recent kwam het lang verwachte ruim tweehonderdvijftig pagina`s tellende manuscript uit met daarin een revisie van de taxonomie van gifkikkers. De auteurs onder leiding van Taran Grant stellen een nieuwe taxonomie voor, die de familie Dendrobatidae met haar tien algemener geaccepteerde genera

  19. De toekomst van flex : een onderzoek van tno naar flexstrategieën van Nederlandse bedrijven

    NARCIS (Netherlands)

    Verbiest, S.E.; Goudswaard, A.; Wijk, E.B. van

    2014-01-01

    In 2020 zal het personeelsbestand van organisaties voor 30% uit flexkrachten bestaan. Op dit moment is dat 25%. Dit blijkt uit een onderzoek van TNO onder 900 ondernemingen in opdracht van de ABU (Algemene Bond Uitzendondernemingen). Het blijkt dat met name organisaties die al gebruikmaken van

  20. De trek van kruiden van volgroeid wortelmateriaal : handleiding van A tot Z in beknopte vorm

    NARCIS (Netherlands)

    Wijk, van C.A.P.

    2005-01-01

    Deze teelthandleiding richt zich op de trek van vooral dragon, krulpeterselie, rucola en munt, uitgaande van wortelmateriaal dat in de vollegrond wordt geteeld. Deze forcering richt zich zowel op aanbod van kruiden in potjes als de meermalige oogst van het gesneden product in een kas of een

  1. Numerieke simulatie van de blastbelasting op vlucht MH17 van Malaysia Airlines als gevolg van de detonatie van een gevechtslading (U)

    NARCIS (Netherlands)

    2015-01-01

    De Onderzoeksraad voor Veiligheid (OVV) onderzoekt de crash van vlucht MH17 van Malaysia Airlines die plaatsvond op donderdag 17 juli 2014 in de regio Donetsk (Oekraïne). De OVV wil een duidelijk beeld geven van de oorzaak van de crash. Een mogelijke oorzaak is fatale schade aan het vliegtuig als

  2. Hugh Grady (ed.), Shakespeare and Modernity : Early Modern to Millenium

    OpenAIRE

    Ribeyrol, Wendy

    2014-01-01

    Shakespeare and Modernity : Early Modern to Millenium, publié au tournant du troisième millénaire est un recueil de neuf essais d’universitaires américains et britanniques, précédé d’une introduction de Hugh Grady, auteur par ailleurs de The Modernist Shakespeare (1991), Shakespeare’s Universal Wolf (1996) et plus récemment de Shakespeare and Impure Aesthetics (2009). Ce livre offre à l’étudiant, à l’enseignant et au chercheur un état des lieux stimulant de l’évolution des études shakespearie...

  3. AFP Algorithm and a Canonical Normal Form for Horn Formulas

    OpenAIRE

    Majdoddin, Ruhollah

    2014-01-01

    AFP Algorithm is a learning algorithm for Horn formulas. We show that it does not improve the complexity of AFP Algorithm, if after each negative counterexample more that just one refinements are performed. Moreover, a canonical normal form for Horn formulas is presented, and it is proved that the output formula of AFP Algorithm is in this normal form.

  4. Computed tomography of the temporal horns at Alzheimer's disease. Computertomographie der Temporalhoerner bei Morbus Alzheimer

    Energy Technology Data Exchange (ETDEWEB)

    Gerber, U; Vogel, [Allgemeines Krankenhaus Ochsenzoll, Hamburg (Germany, F.R.). Abt. Roentgendiagnostik

    1989-06-01

    In the literature there are different opinions referring to the involvement of the temporal lobes or horns at Alzheimer's disease. Conventionally computed tomogram of the head does not include the temporal horn in its full length. A simple method to demonstrate the temporal horns after cranial computer tomography is described. It allows the evaluation of temporal lobe and temporal horn if questionable alterations at Alzheimer's disease are to be discussed. (orig.).

  5. Filosofiese tendense in die wordinggeskiedenis van ons verstaan van die fisiese natuur

    Directory of Open Access Journals (Sweden)

    D. F. M. Strauss

    2006-09-01

    Full Text Available Die ontstaan van ’n lang tradisie van natuurwetenskaplike denke is in antieke Griekeland te vind – die bakermat van die Westerse beskawing en die bron van geartikuleerde rasionele besinning. Die vroegste fases van die Griekse kultuur het reeds geboorte geskenk aan ’n teoretiese nadenke oor die heelal. Die Pythagoreërs is veral bekend vir hul klem op die verklaringskrag van getalsverhoudinge. In hul tese dat “alles getal is” het hulle egter slegs rasionale getalle (breuke erken en gevolglik uiteindelik vasgeloop in die ontdekking van irrasionale getalle wat tot die geometrisering van die Griekse wiskunde gelei het en tegelyk die bedding gevorm het van waaruit ’n magtige tradisie van ruimte-metafisika gegroei het wat die hele middeleeuse tydperk omspan het. Die vermeende statiese syn is in die mees ekstreme geval – die skool van Parmenides en die argumente van Zeno teen veelheid en beweging – tot in die uiteindelike antinomiese konsekwensies daarvan deurdink. Dit was egter eers die vroeg-moderne tyd – die voorgangers en nakomelinge van Galilei – wat naas getal en ruimte ’n waardering ontwikkel het vir die verklaringskrag van beweging (vergelyk die klassieke meganistiese wêreldbeeld van die heelal as ’n meganisme van stofdeeltjies in beweging. Maar ook hierdie meganistiese reduksie (waardeur alle fisiese verskynsels herlei is tot die beweging van al of niegelade massapunte sou uiteindelik misluk omdat dit nie van die onomkeerbaarheid van fisiese prosesse rekenskap kon gee nie. Gevolglik beliggaam eers die fisika van die 20ste eeu ’n erkenning van die deurslaggewend-stempelende rol van energie-werking (dus van die fisiese aspek in die aard van stoflike dinge en prosesse. Die artikel word afgesluit met ’n vlugtige verduideliking van die implikasies van die voorafgaande argumentasie vir ’n benadering van die misterie van die bestaan van materie.

  6. Beoordeling van het gedrag van bestrijdingsmiddelen in de verzadigde zone van de bodem

    NARCIS (Netherlands)

    Linden AMA van der; Beek CGEM van; Boesten JJTI; Leistra M; Meinardi CR; Puijker LM; LBG

    1994-01-01

    In het MeerJarenPlan-Gewasbescherming van 1991 is de mogelijkheid gegeven om door middel van onderzoek in de verzadigde fase van de bodem aan te tonen dat bestrijdingsmiddelen, die kunnen uitspoelen naar de verzadigde zone, alsnog voor toelating in aanmerking kunnen komen als de

  7. Onderzoek naar de effecten van snoezelen op het gedrag van demente verpleeghuisbewoners en de werkbeleving van verzorgenden.

    NARCIS (Netherlands)

    Weert, J. van; Peter, J.; Dulmen, S. van; Ribbe, M.; Bensing, J.

    2004-01-01

    Het effect van snoezelen in de 24-uurszorg op de stemming en het gedrag van demente ouderen is nooit eerder onderzocht. Ook is in geen van de eerdere studies het effect onderzocht van snoezelen op de werkbeleving van verzorgenden. Uit onderzoek is bekend dat in verpleeghuizen waar geen

  8. Beoordeling van het gedrag van bestrijdingsmiddelen in de verzadigde zone van de bodem

    NARCIS (Netherlands)

    Linden, van der A.M.A.; Beek, van C.G.E.M.; Boesten, J.J.T.I.; Leistra, M.; Meinardi, C.R.; Puijker, L.M.

    1999-01-01

    In het MeerJarenPlan-Gewasbescherming van 1991 is de mogelijkheid gegeven om door middel van onderzoek in de verzadigde fase van de bodem aan te tonen dat bestrijdingsmiddelen, die kunnen uitspoelen naar de verzadigde zone, alsnog voor toelating in aanmerking kunnen komen als de omzettingssnelheid

  9. DYNAMICS OF A PROMINENCE-HORN STRUCTURE DURING ITS EVAPORATION IN THE SOLAR CORONA

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Bing; Chen, Yao; Fu, Jie; Li, Bo [Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, and Institute of Space Sciences, Shandong University, Weihai 264209 (China); Li, Xing [Department of Physics, Aberystwyth University, Aberystwyth, Ceredigion, SY23 3BZ (United Kingdom); Liu, Wei, E-mail: yaochen@sdu.edu.cn [Stanford-Lockheed Institute for Space Research, Stanford University, Stanford, CA 94305 (United States)

    2016-08-20

    The physical connections among and formation mechanisms of various components of the prominence-horn cavity system remain elusive. Here we present observations of such a system, focusing on a section of the prominence that rises and separates gradually from the main body. This forms a configuration sufficiently simple to yield clues regarding the above issues. It is characterized by embedding horns, oscillations, and a gradual disappearance of the separated material. The prominence-horn structure exhibits a large-amplitude longitudinal oscillation with a period of ∼150 minutes and an amplitude of ∼30 Mm along the trajectory defined by the concave horn structure. The horns also experience a simultaneous transverse oscillation with a much smaller amplitude (∼3 Mm) and a shorter period (∼10–15 minutes), likely representative of a global mode of the large-scale magnetic structure. The gradual disappearance of the structure indicates that the horn, an observational manifestation of the field-aligned transition region separating the cool and dense prominence from the hot and tenuous corona, is formed due to the heating and diluting process of the central prominence mass; most previous studies suggested that it is the opposite process, i.e., the cooling and condensation of coronal plasmas, that formed the horn. This study also demonstrates how the prominence transports magnetic flux to the upper corona, a process essential for the gradual build-up of pre-eruption magnetic energy.

  10. Bepaling van de optredende temperaturen bij tunnelcompostering van geitenmest

    NARCIS (Netherlands)

    Melse, R.W.; Sauvage, de G.J.; Roest, H.I.J.

    2010-01-01

    Het doel van het project is om inzicht te krijgen in de composteerbaarheid van geitenmest en het hiermee samenhangende temperatuursverloop . Bepaald dient te worden welke temperaturen tijdens het composteren van geitenmest worden bereikt om op basis daarvan een inschatting te kunnen maken van de

  11. Kleinschalige raffinage van bietenblad : eerste verkenning van de moglijkheden

    NARCIS (Netherlands)

    Wolf, de P.L.; Visser, de C.L.M.; Keijsers, E.R.P.; Meesters, K.P.H.; Heesakkers, J.W.M.; Aerts, M.

    2013-01-01

    Doelstelling van de eerste fase van het onderzoek was ‘het verkennen van kleinschalige keten(s) voor de raffinage van bietenblad’, met aandacht voor de technologische en economische haalbaarheid. Deze verkenning vormt de basis voor de volgende fase, waarin kansrijke opties verder worden uitgewerkt

  12. Attached cavitation at a small diameter ultrasonic horn tip

    Science.gov (United States)

    Žnidarčič, Anton; Mettin, Robert; Cairós, Carlos; Dular, Matevž

    2014-02-01

    Ultrasonic horn transducers are frequently used in applications of acoustic cavitation in liquids, for instance, for cell disruption or sonochemical reactions. They are operated typically in the frequency range up to about 50 kHz and have tip diameters from some mm to several cm. It has been observed that if the horn tip is sufficiently small and driven at high amplitude, cavitation is very strong, and the tip can be covered entirely by the gas/vapor phase for longer time intervals. A peculiar dynamics of the attached cavity can emerge with expansion and collapse at a self-generated frequency in the subharmonic range, i.e., below the acoustic driving frequency. Here, we present a systematic study of the cavitation dynamics in water at a 20 kHz horn tip of 3 mm diameter. The system was investigated by high-speed imaging with simultaneous recording of the acoustic emissions. Measurements were performed under variation of acoustic power, air saturation, viscosity, surface tension, and temperature of the liquid. Our findings show that the liquid properties play no significant role in the dynamics of the attached cavitation at the small ultrasonic horn. Also the variation of the experimental geometry, within a certain range, did not change the dynamics. We believe that the main two reasons for the peculiar dynamics of cavitation on a small ultrasonic horn are the higher energy density on a small tip and the inability of the big tip to "wash" away the gaseous bubbles. Calculation of the somewhat adapted Strouhal number revealed that, similar to the hydrodynamic cavitation, values which are relatively low characterize slow cavitation structure dynamics. In cases where the cavitation follows the driving frequency this value lies much higher - probably at Str > 20. In the spirit to distinguish the observed phenomenon with other cavitation dynamics at ultrasonic transducer surfaces, we suggest to term the observed phenomenon of attached cavities partly covering the full horn

  13. Kamillo Horn und das Melodram

    Czech Academy of Sciences Publication Activity Database

    Bajgarová, Jitka

    2010-01-01

    Roč. 12, - (2010), s. 229-237 ISSN 1212-1193. [Zdeněk Fibich, středoevropský skladatel konce 19. století. Olomouc, 19.05.2010–21.05.2010] Institutional research plan: CEZ:AV0Z90580513 Keywords : Kamillo Horn * concert melodrama Subject RIV: AL - Art, Architecture, Cultural Heritage

  14. Carcinoma Buccal Mucosa Underlying a Giant Cutaneous Horn: A Case Report and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Sunil Kumar

    2014-01-01

    Full Text Available Cutaneous horn is a conical, dense, and hyperkeratotic protrusion that often appears similar to the horn of an animal. Giant cutaneous horns are rare; no incidence or prevalence has been reported. The significance of cutaneous horns is that they occur in association with, or as a response to, a wide variety of underlying benign, premalignant, and malignant cutaneous diseases. A case of giant cutaneous horn of left oral commissure along with carcinoma left buccal mucosa is reported here as an extremely rare oral/perioral pathology.

  15. Presence of the vancomycin resistance gene cluster vanC1, vanXYc, and vanT in Enterococcus casseliflavus.

    Science.gov (United States)

    Hölzel, Christina; Bauer, Johann; Stegherr, Eva-Maria; Schwaiger, Karin

    2014-04-01

    The three chromosomally located clustered genes vanC1, vanXYc, and vanT confer intrinsic resistance to vancomycin and are used for species identification of Enterococcus gallinarum. In this study, 28 strains belonging to the E. gallinarum/casseliflavus group isolated from cloacal swabs from laying hens were screened for the presence of vanC1. As confirmed by species-specific multiplex PCR, 11 vanC1-positive strains were identified as E. gallinarum. Surprisingly, one yellow pigmented strain, verified as E. casseliflavus by species-specific multiplex PCR, was also vanC1 positive; vanXYc and vanT were additionally detectable in this strain. To our knowledge, this is the first report of vanC1, vanXYc, and vanT in E. casseliflavus. The minimum inhibitory concentration of vancomycin was 4 mg/L. Real-time reverse transcription-PCR revealed that none of the clustered genes was expressed in this strain. Even if the genes seem not to be active, there is a certain risk that they will be transferred to other bacteria where they might be functionally expressed. Therefore, it may be advisable to expand the search for vanC1, vanXYc, and vanT from E. gallinarum to other (enterococcal) species. This study confirms that enterococci live up to their name as being reservoir bacteria and should therefore always be closely monitored.

  16. 9 CFR 95.11 - Bones, horns, and hoofs for trophies or museums; disinfected hoofs.

    Science.gov (United States)

    2010-01-01

    ... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Bones, horns, and hoofs for trophies..., OFFERED FOR ENTRY INTO THE UNITED STATES § 95.11 Bones, horns, and hoofs for trophies or museums; disinfected hoofs. (a) Clean, dry bones, horns, and hoofs, that are free from undried pieces of hide, flesh...

  17. The NACA Exceptional Service Medal presented at the NACA High Speed Flight Station. L-R: Hugh Dryden

    Science.gov (United States)

    1956-01-01

    The NASA exceptional Service Medal presented at the NACA High Speed Flight Station. L-R: Hugh Dryden, Joe Walker (X-1A research pilot), Stan Butchart (pilot of the B-29 mothership), Richard Payne (X-1A crew chief).

  18. Die gebruik van parallelplaatreologie vir die bepaling van die intrinsieke viskositeit van poli-etileentereftalaat

    Directory of Open Access Journals (Sweden)

    O. C. Vorster

    2005-09-01

    Full Text Available Die bepaling van die intrinsieke viskositeit van poli-etileentereftalaat word bemoeilik deur die feit dat daar tans slegs twee metodes in gebruik is. In die eerste metode word die bepaling deur middel van oplossingsviskometrie gedoen, maar die toksisiteit van die oplosmiddel, asook die tydperk wat dit neem om die bepaling te doen, is ’n probleem. Die tweede metode word beperk deur die kompleksiteit en beskikbaarheid van die apparatuur in Suid-Afrika. In hierdie studie word ’n alternatiewe metode, gebaseer op parallelplaatreologie, voorgestel wat albei hierdie probleme oorkom en die resultate sodoende verkry, word vergelyk met dié wat met bestaande metodes verkry is.

  19. Ruptured Rudimentary Horn Pregnancy at 25 Weeks with Previous Vaginal Delivery: A Case Report

    Directory of Open Access Journals (Sweden)

    Deepa V. Kanagal

    2012-01-01

    Full Text Available Unicornuate uterus with rudimentary horn occurs due to failure of complete development of one of the Mullerian ducts and incomplete fusion with the contralateral side. Pregnancy in a noncommunicating rudimentary horn is extremely rare and usually terminates in rupture during first or second trimester of pregnancy. Diagnosis of rudimentary horn pregnancy and its rupture in a woman with prior vaginal delivery is difficult. It can be missed in routine ultrasound scan and in majority of cases it is detected after rupture. It requires a high index of suspicion. We report a case of G2PlL1 with rupture rudimentary horn pregnancy at 25 weeks of gestation which was misdiagnosed as intrauterine pregnancy with fetal demise by ultrasound, and termination was attempted and the case was later referred to our hospital after the patient developed hemoperitoneum and shock with a diagnosis of rupture uterus. Laparotomy revealed rupture of right rudimentary horn pregnancy with massive hemoperitoneum. Timely laparotomy, excision of the horn, and blood transfusion saved the patient.

  20. Die identifisering van maatstawwe vir die navorsingsprestasie van akademici

    Directory of Open Access Journals (Sweden)

    H. A. Labuschagne

    1990-06-01

    Full Text Available Identification of criteria for academic research performance. At South African universities, the achievement of objectives is usually measured in terms of so-called "process criteria" (e.g. pass rates, instead of performance criteria which reflect the quality of academic personnel. Stimulated by the need to identify valid indices of research performance, as a component of academic performance, this study investigated the dimensionality of several criteria, identified from empirical and literature studies. It was found that various valid criteria could be represented by six constructs, viz.: the stature of the researcher as scientist; scientific contributions; enhancement of own profession; community development; participation in research projects; and giving advice to persons or institutions outside the university. Opsomming By Suid-Afrikaanse universiteite word doelwitbereiking gewoonlik aan die hand van sogenaamde "prosesmaat-stawwe" (bv. slaagsyfers in plaas van prestasiemaatstawwe wat die gehalte van akademiese personeel weerspieel, gemeet. Na aanleiding van 'n behoefte aan die identifisering van geldige rigtingwysers vir navorsingsprestasie as 'n komponent van akademiese prestasie, is daar ondersoek ingestel na die dimensionaliteit van verskillende maatstawwe wat vooraf deur middel van empiriese- en literatuurstudies geidentifiseer is. Daar is gevind dat verskeie geldige maatstawwe deur ses konstrukte verteenwoordig word, te wete: die statuur van die navorser as wetenskaplike, wetenskaplike bydraes, uitbouing van eie professie, gemeenskapsontwikkeling, deelname aan navorsingsprojekte en advieslewering aan persone of instellings buite die Universiteit.

  1. Optical modelling of far-infrared astronomical instrumentation exploiting multimode horn antennas

    Science.gov (United States)

    O'Sullivan, Créidhe; Murphy, J. Anthony; Mc Auley, Ian; Wilson, Daniel; Gradziel, Marcin L.; Trappe, Neil; Cahill, Fiachra; Peacocke, T.; Savini, G.; Ganga, K.

    2014-07-01

    In this paper we describe the optical modelling of astronomical telescopes that exploit bolometric detectors fed by multimoded horn antennas. In cases where the horn shape is profiled rather than being a simple cone, we determine the beam at the horn aperture using an electromagnetic mode-matching technique. Bolometers, usually placed in an integrating cavity, can excite many hybrid modes in a corrugated horn; we usually assume they excite all modes equally. If the waveguide section feeding the horn is oversized these modes can propagate independently, thereby increasing the throughput of the system. We use an SVD analysis on the matrix that describes the scattering between waveguide (TE/TM) modes to recover the independent orthogonal fields (hybrid modes) and then propagate these to the sky independently where they are added in quadrature. Beam patterns at many frequencies across the band are then added with a weighting appropriate to the source spectrum. Here we describe simulations carried out on the highest-frequency (857-GHz) channel of the Planck HFI instrument. We concentrate in particular on the use of multimode feedhorns and consider the effects of possible manufacturing tolerances on the beam on the sky. We also investigate the feasibility of modelling far-out sidelobes across a wide band for electrically large structures and bolometers fed by multi-mode feedhorns. Our optical simulations are carried out using the industry-standard GRASP software package.

  2. Long-horned Ceratopsidae from the Foremost Formation (Campanian of southern Alberta

    Directory of Open Access Journals (Sweden)

    Caleb M. Brown

    2018-01-01

    Full Text Available The horned Ceratopsidae represent one of the last radiations of dinosaurs, and despite a decade of intense work greatly adding to our understanding of this diversification, their early evolution is still poorly known. Here, two postorbital horncores from the upper Foremost Formation (Campanian of Alberta are described, and at ∼78.5 Ma represent some of the geologically oldest ceratopsid material. The larger of these specimens is incorporated into a fused supraorbital complex, and preserves a massive, straight, postorbital horncore that is vertical in lateral view, but canted dorsolaterally in rostral view. Medially, the supracranial sinus is composed of a small, restricted caudal chamber, and a large rostral chamber that forms the cornual diverticulum. This morphology is distinct from that of the long-horned Chasmosaurinae, and similar to, but still different from, those of younger Centrosaurinae taxa. The smaller specimen represents an ontogenetically younger individual, and although showing consistent morphology to the larger specimen, is less taxonomically useful. Although not certain, these postorbital horns may be referable to a long-horned basal (i.e., early-branching, non-pachyrhinosaurini, non-centrosaurini centrosaurine, potentially the contemporaneous Xenoceratops, largely known from the parietosquamosal frill. These specimens indicate the morphology of the supracranial sinus in early, long-horned members of the Ceratopsidae, and add to our understanding of the evolution of the cranial display structures in this iconic dinosaur clade.

  3. Holocene Evolution and Sediment Provenance of Horn Island, Mississippi, USA

    Science.gov (United States)

    Schulze, N.; Wallace, D. J.; Miner, M. D.

    2017-12-01

    As one of the most stable islands in the Mississippi-Alabama barrier island chain, Horn Island provides critical habitat, plays an important role in regulating estuarine conditions in the Mississippi Sound, and helps to attenuate wave energy and storm surge for the mainland. The provenance of sediments comprising Horn Island is largely unknown and has implications for mode of island genesis and evolution. The existing literature proposes that island chain formation was initiated by bar emergence from a subaqueous spit that grew laterally westward from Dauphin Island in the east. Decelerating sea level rise 4,000 to 5,000 years ago facilitated island formation. This proposed mode of formation is supported by a lone radiocarbon date from lagoonal sediments below Horn Island, suggesting the system formed after 4,615 ± 215 years BP. Rivers supplying suspended sediment include the Mississippi, Pascagoula, Mobile and Apalachicola, but the variable nature of their paths and sediment supply means that Horn Island has received differing amounts of sediment from these proximal rivers throughout the Holocene. To analyze the stratigraphy and sediment characteristics of Horn Island, we will utilize 24 vibracores (up to 6 meters in length) from offshore Horn Island that were obtained by the United States Geological Survey (USGS) and 9 onshore drill cores (up to 28 meters in length) from the Mississippi Department of Environmental Quality. High-resolution LiDAR data collected by the National Oceanic and Atmospheric Administration in 2010 will be used to describe modern geomorphic barrier environments. We will employ down-core x-ray diffraction and x-ray fluorescence analyses to identify mineralogical and chemical signatures that potentially correspond to unique signatures of the fluvial sources of proximal rivers. New radiocarbon ages will be used to constrain the timing of island formation and alterations in sediment supply. High-resolution shallow geophysical data will provide

  4. Invloed van minerale olie op de bestrijding van Phytophthora infestans in pootaardappelen

    NARCIS (Netherlands)

    Spits, H.G.; Bus, C.B.

    2003-01-01

    De invloed van toevoeging van olie aan een fungicide op de werking van het fungicide is afhankelijk van het gebruikte fungicide. Gezamenlijk spuiten van olie en Aviso DF, Curzate M en mogelijk ook Acrobat, verhoogt de curatieve werking van deze fungiciden. Gezamenlijk spuiten van olie en Aviso DF,

  5. B. J. van der Merwe . Pentateugtradisies in die prediking van ...

    African Journals Online (AJOL)

    B. J. van der Merwe . Pentateugtradisies in die prediking van Deuterojesaja. Proefschrift ter verkrijging van de graad van Doctor in de Godgeleerdheid aan de Rijkuniversiteit te Groningen. Uitg. J. B. Wolters, Groningen, Djakarta. 1955. 280 bls.

  6. n Oorsig van die huidige stand van navorsing oor die

    African Journals Online (AJOL)

    Test

    7 Jun 2011 ... Die eerste maal wat dit as deel van die teks van 1 Johannes aangehaal word, is in die. 4de eeu in 'n Latynse teks, Liber Apologeticus (hf 4). Eers aan die einde van die 16de eeu is dit in 'n amptelike Katolieke uitgawe van die Vulgaat ingesluit. Die doel van die Johannesbriewe. Waarom is die Briewe ...

  7. Detectie van Meloidogyne spp. in grondmonsters - een vergelijking van twee technieken

    NARCIS (Netherlands)

    Veenhuizen, P.T.M.; Schoemakers, N.; Vos, J.; Versteegen, F.; Landeweert, R.; Karssen, G.

    2007-01-01

    Hier volgen de samenvattingen van de bijeenkomst van 20 maart 2007 van de KNPV-werkgroep Meloidogyne. 1) Kwantitatieve multiplexdetectie van aaltjes; 2). Meloidogyne chitwoodi en M. fallax: vergelijking visuele beoordeling en Taqman-PCR aan pootaardappelen; 3) Detectie van Meloidogyne spp. in

  8. An Interview with Michael Horn: Blending Education for High-Octane Motivation

    Science.gov (United States)

    Patterson, Gregory A.

    2012-01-01

    Blended learning holds the potential of improving the way we educate students and of making them more motivated. Blended education--the melding of information technology based distance learning with school attendance--is perhaps the best way to educate students for 21st century skills, says Michael Horn in a "Kappan" interview. Horn points out…

  9. Stroming en samenstelling van de sprengen en het grondwater van de Veluwe in 1996; een vergelijking met de toestand van 1986

    NARCIS (Netherlands)

    Meinardi CR; LBG

    1999-01-01

    Monsters water uit sprengen en grondwater van de Veluwe zijn onderzocht op concentraties van hoofdcomponenten en van microcomponenten (bepalingen door NITG). Onderzoek is gedaan ter bepaling van verblijftijden in de bodem van grondwater en van het water in sprengen. De intrekgebieden van de

  10. A. VAN SELMS. LUKAS SE SEGSMAN VIR DIE GESKIEDENIS VAN ...

    African Journals Online (AJOL)

    Test

    oordele aan die eerste drie hoofstukke van sy Evangelie, het Lukas onder „van ..... Simon te onderskei van Simon Petrus, hoef ons nie erns te maak nie. .... op hulle beurt vereenselwig met Mosa van Jos. .... i&) Lukas der Arzt. Leipzig, 1906.

  11. Fault-tolerant Greenberger-Horne-Zeilinger paradox based on non-Abelian anyons.

    Science.gov (United States)

    Deng, Dong-Ling; Wu, Chunfeng; Chen, Jing-Ling; Oh, C H

    2010-08-06

    We propose a scheme to test the Greenberger-Horne-Zeilinger paradox based on braidings of non-Abelian anyons, which are exotic quasiparticle excitations of topological states of matter. Because topological ordered states are robust against local perturbations, this scheme is in some sense "fault-tolerant" and might close the detection inefficiency loophole problem in previous experimental tests of the Greenberger-Horne-Zeilinger paradox. In turn, the construction of the Greenberger-Horne-Zeilinger paradox reveals the nonlocal property of non-Abelian anyons. Our results indicate that the non-Abelian fractional statistics is a pure quantum effect and cannot be described by local realistic theories. Finally, we present a possible experimental implementation of the scheme based on the anyonic interferometry technologies.

  12. Digitale incunabelen : Over het belang van het archiveren van websites

    NARCIS (Netherlands)

    Voerman, Gerrit; Keyzer, Andreas; den Hollander, Franciscus

    'Het geheugen van Nederland verpulvert'. Zo luidde de noodkreet van ruim twintig grote bibliotheken in het voorjaar van 1998. In een advertentie in enkele landelijke dagbladen vroegen deze bibliotheken om honderden miljoenen guldens voor het restaureren, fotograferen en digitaliseren van boeken en

  13. Digitale incunabelen : Over het belang van het archiveren van websites

    NARCIS (Netherlands)

    Voerman, Gerrit; Keyzer, Andreas; den Hollander, Franciscus

    2000-01-01

    'Het geheugen van Nederland verpulvert'. Zo luidde de noodkreet van ruim twintig grote bibliotheken in het voorjaar van 1998. In een advertentie in enkele landelijke dagbladen vroegen deze bibliotheken om honderden miljoenen guldens voor het restaureren, fotograferen en digitaliseren van boeken en

  14. Inclusie door interprofessionele samenwerking. : Resultaten van de proeftuinen van PACT.

    NARCIS (Netherlands)

    Doornenbal, Jeannette; Fukkink, Ruben; van Yperen, Tom; Balledux, Mariëlle; Spoelstra, Jolanda; Verseveld, Marloes

    2017-01-01

    Deze rapportage gaat over de resultaten van de PACT-proeftuinen waaraan in opdracht van Het Kinderopvangfonds van 2015 tot 2017 is gewerkt. PACT-proeftuinen zijn innovatieve praktijken waarin door middel van interprofessionele samenwerking tussen de kinderopvang, het basisonderwijs en de zorg wordt

  15. Kinematic analysis of melange fabrics: Examples and applications from the McHugh Complex, Kenai Peninsula, Alaska

    Science.gov (United States)

    Kusky, T.M.; Bradley, D.C.

    1999-01-01

    Permian to Cretaceous melange of the McHugh Complex on the Kenai Peninsula, south-central Alaska includes blocks and belts of graywacke, argillite, limestone, chert, basalt, gabbro, and ultramafic rocks, intruded by a variety of igneous rocks. An oceanic plate stratigraphy is repeated hundreds of times across the map area, but most structures at the outcrop scale extend lithological layering. Strong rheological units occur as blocks within a matrix that flowed around the competent blocks during deformation, forming broken formation and melange. Deformation was noncoaxial, and disruption of primary layering was a consequence of general strain driven by plate convergence in a relatively narrow zone between the overriding accretionary wedge and the downgoing, generally thinly sedimented oceanic plate. Soft-sediment deformation processes do not appear to have played a major role in the formation of the melange. A model for deformation at the toe of the wedge is proposed in which layers oriented at low angles to ??1 are contracted in both the brittle and ductile regimes, layers at 30-45??to ??1 are extended in the brittle regime and contracted in the ductile regime, and layers at angles greater than 45??to ??1 are extended in both the brittle and ductile regimes. Imbrication in thrust duplexes occurs at deeper levels within the wedge. Many structures within melange of the McHugh Complex are asymmetric and record kinematic information consistent with the inferred structural setting in an accretionary wedge. A displacement field for the McHugh Complex on the lower Kenai Peninsula includes three belts: an inboard belt of Late Triassic rocks records west-to-east-directed slip of hanging walls, a central belt of predominantly Early Jurassic rocks records north-south directed displacements, and Early Cretaceous rocks in an outboard belt preserve southwest-northeast directed slip vectors. Although precise ages of accretion are unknown, slip directions are compatible with

  16. Die opleiding van bedryfsielkundiges aan die universiteit van Fort Hare

    Directory of Open Access Journals (Sweden)

    W. Botha

    1977-11-01

    Full Text Available Die Departement Bedryfsielkunde aan die Universiteit van Fort Hare is 'n relatiewe jong departement en het eers in 1965 tot stand gekom. Voor hierdie datum is Bedryfsielkunde as 'n kort kursus deur die departement van suiwer Sielkunde aangebied en een van die destydse dosente, Dr. W. Backer, het die inisiatief geneem om 'n selfstandige departement van Bedryfsielkunde in die Fakulteit van Ekonomiese Wetenskappe op die been te bring.

  17. Diagnosis of radial tear of posterior horn of medial meniscus by MR imaging. Prospective study

    International Nuclear Information System (INIS)

    Motoyama, Tatsuo; Ihara, Hidetoshi; Kawashima, Mahito

    2002-01-01

    It is not easy to detect radial tears of the posterior horn of the medial meniscus (torn posterior horn) under arthroscopy if the surgeon does not notice the tear before arthroscopy. Occasionally the tear goes undetected or is missed during arthroscopy. The sagittal view of MR imaging is very useful for diagnosing torn posterior horns. The normal posterior horn of the medial meniscus appears as an image of low intensity triangle of the sagittal MRI medial slice next to the PCL. On the contrary, the image of the torn posterior horn shows a high intensity triangle, so we refer to the feature as a white meniscus sign. We prospectively examined the accuracy of white meniscus sign of MRI. Forty-two knees in 41 patients were studied. They were over 40 years of age, diagnosed with medial meniscus tear and had undergone MRI before arthroscopy. Before arthroscopy, we predicted the existence of torn posterior horn by the white meniscus sign and examined the accuracy of the MRI after arthroscopy. Total accuracy rate was 90.5%, sensitivity was 94.1%, and specificity was 88.0%. We concluded that the white meniscus sign on MRI is very useful for defecting torn posterior horn of the medial meniscus. (author)

  18. 76 FR 53295 - Unexpected Urgent Refugee and Migration Needs Related to the Horn of Africa

    Science.gov (United States)

    2011-08-25

    ...-12 of August 8, 2011--Unexpected Urgent Refugee and Migration Needs Related to the Horn of Africa... Migration Needs Related to the Horn of Africa Memorandum for the Secretary of State By the authority vested... Department of State, related to the humanitarian crisis in the Horn of Africa. You are authorized and...

  19. Het effect van creatief schrijven op het lezen van korte verhalen

    NARCIS (Netherlands)

    Janssen, T.; van den Bergh, H.

    2010-01-01

    Schrijven en lezen zijn complementaire vaardigheden, niet alleen bij referentiële teksten, maar ook bij fictionele. Janssen en Van den Bergh doen verslag van een onderzoek naar de invloed van creatief schrijven op het lezen van verhalen. Als leerlingen, voorafgaand aan het lezen van een verhaal, een

  20. Databank van de lithografische opbouw en morfologische ontwikkeling van de uiterwaarden van de Midden-Waal

    NARCIS (Netherlands)

    Hebinck, K.A.

    2008-01-01

    In de uiterwaarden zijn de komende decennia veel ingrepen gepland. Een goede kennis van de sedimentatiedynamiek en morfologische ontwikkeling van de uiterwaarden is daarbij een vereiste. Daartoe is een digitale databank (op CD bij dit rapport) opgesteld van de opbouw en geomorfologische ontwikkeling

  1. Insulation Coordination of Arcing Horns on HVDC Electrode Lines: Protection Performance Evaluation, Influence Factors and Improvement Method

    Directory of Open Access Journals (Sweden)

    Xiandong Li

    2018-02-01

    Full Text Available Arcing horns are widely used in high voltage overhead lines to protect insulator strings from being destroyed by the free burning arcs caused by lightening faults. In this paper, we focus on the insulation coordination of arcing horns on the electrode lines of a 5000 MW, ±800 kV high voltage direct current (HVDC system. The protection performance of arcing horns are determined by the characteristics of not only the external system but also the fault arc. Therefore, the behaviors and characteristics of long free burning arcs are investigated by the experiments at first. In order to evaluate the protection performance of arcing horns, the static stability criterion U-I characteristic method is introduced. The influence factors on the protection performance of arcing horns are analyzed theoretically. Finally, the improvement methods for the protection performance of arcing horns are proposed, and the diversified configuration strategy of arcing horns is recommended for cost saving.

  2. Fluorescentievingerafdruk van Aardappel, Melganzenvoet en Mais : Eerste resultaten van plantonderscheid met behulp van fluorescentie

    NARCIS (Netherlands)

    Groot, T.T.; Nieuwenhuizen, A.T.

    2012-01-01

    Als het spectrum van één “soort” (gewas) vergeleken wordt met de rest (onkruid) neemt het onderscheid van het “gewas” af tot 70%. Het lijkt dus nodig ook de spectra van alle soorten onkruid in het veld te kennen om een goed onderscheid mogelijk te maken. De doelstelling voor deze metingen is een

  3. Proeven van tekstkritiek. Een onderzoek betreffende de tekstgeschiedenis van de Renout van Montalbaen en de Perceval

    NARCIS (Netherlands)

    Hogenhout-Mulder, Maaike Janna

    1984-01-01

    In dit proefschrift wordt een poging gedaan de tekstgeschiedenis te achterhalen van twee Middelnederlandse tekstfragmenten: een gedeelte uit de RENOUT VAN MONTALBAEN en een gedeelte uit de PERCEVAL. ... Zie: Twee tekstfragmenten als object van onderzoek

  4. Invoering van algemene vaardigheden: mogelijkheden van een vakoverstijgende aanpak

    NARCIS (Netherlands)

    Leenders, F.J.

    2003-01-01

    Centrale vraag: Het onderzoek richtte zich op de implementatie van vakoverstijgend vaardighedenonderwijs in de Tweede Fase van het voortgezet onderwijs. Belangrijkste conclusies: De brochure bevat onder meer een beschrijving van vijf scholen waar op verschillende wijze vaardighedenonderwijs

  5. Resultaten van het Rijkswaterstaat JAMP 2009 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot

    OpenAIRE

    Hoek-van Nieuwenhuizen, van, M.; Barneveld, van, E.

    2010-01-01

    De in dit rapport beschreven werkzaamheden zijn in 2009 door IMARES uitgevoerd op basis van een opdracht van Rijkswaterstaat in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens van bot (visziekten). De benodigde monsters bot werden verzameld door IMARES. Tevens werd materiaal van bot verzameld voor chemisch onderzoek en geanalyseerd.

  6. The flora of woody plants and vegetation on the Horn of Africa

    DEFF Research Database (Denmark)

    Friis, Ib

    2017-01-01

    There are about one thousand species of woody plants that occur naturally on the Horn of Africa, including trees and large shrubs, and they have many functions in the highly varied ecosystem on the Horn, including soil conservation and the prevention of flooding during tropical rainstorms. For hi...

  7. Resultaten van het Rijkswaterstaat JAMP 2008 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot

    NARCIS (Netherlands)

    Hoek-van Nieuwenhuizen, van M.; Barneveld, van E.

    2009-01-01

    De in dit rapport beschreven werkzaamheden zijn door Wageningen IMARES uitgevoerd op basis van een opdracht van Rijkswaterstaat in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens van bot. De benodigde monsters

  8. Afbouw van het Wsw-bestand: actualisatie op basis van Wsw-gegevens ultimo 2013

    NARCIS (Netherlands)

    Berden, C.; Tempelman, C.

    2014-01-01

    In opdracht van het ministerie van Sociale Zaken en Werkgelegenheid heeft SEO Economisch Onderzoek onderzoek gedaan naar de verdeling van het Participatiebudget over gemeenten. Een onderdeel van dit onderzoek vormde het voorspellen van de afbouw van het huidige zittend bestand in de Wsw op basis van

  9. Short-term plasticity in turtle dorsal horn neurons mediated by L-type Ca2+ channels

    DEFF Research Database (Denmark)

    Russo, R E; Hounsgaard, J

    1994-01-01

    Windup--the gradual increase of the response--of dorsal horn neurons to repeated activation of primary afferents is an elementary form of short-term plasticity that may mediate central sensitization to pain. In deep dorsal horn neurons of the turtle spinal cord in vitro we report windup of the re......Windup--the gradual increase of the response--of dorsal horn neurons to repeated activation of primary afferents is an elementary form of short-term plasticity that may mediate central sensitization to pain. In deep dorsal horn neurons of the turtle spinal cord in vitro we report windup...

  10. Hierarchical State Machines as Modular Horn Clauses

    Directory of Open Access Journals (Sweden)

    Pierre-Loïc Garoche

    2016-07-01

    Full Text Available In model based development, embedded systems are modeled using a mix of dataflow formalism, that capture the flow of computation, and hierarchical state machines, that capture the modal behavior of the system. For safety analysis, existing approaches rely on a compilation scheme that transform the original model (dataflow and state machines into a pure dataflow formalism. Such compilation often result in loss of important structural information that capture the modal behaviour of the system. In previous work we have developed a compilation technique from a dataflow formalism into modular Horn clauses. In this paper, we present a novel technique that faithfully compile hierarchical state machines into modular Horn clauses. Our compilation technique preserves the structural and modal behavior of the system, making the safety analysis of such models more tractable.

  11. Resultaten van het Rijkswaterstaat JAMP 2009 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot

    NARCIS (Netherlands)

    Hoek-van Nieuwenhuizen, van M.; Barneveld, van E.

    2010-01-01

    De in dit rapport beschreven werkzaamheden zijn in 2009 door IMARES uitgevoerd op basis van een opdracht van Rijkswaterstaat in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens van bot (visziekten). De benodigde

  12. Die beskerming van biologiese diversiteit deur gebruik te maak van die gevoeligheidsvariasie van spesies vir toksiese stowwe

    Directory of Open Access Journals (Sweden)

    A. J. Reinecke

    2003-09-01

    Full Text Available Pogings om algemeen geldende standaarde of maatstawwe vir omgewingskwaliteit op te stel vir die beskerming van Suid-Afrika se ryk biodiversiteit word bemoeilik deur die feit dat spesies baie kan verskil  ten opsigte van hulle gevoeligheid vir toksiese stowwe. Daar kan dus nie sonder meer vanaf een spesie na ’n ander geëkstrapoleer word nie. Deur egter juis gebruik te maak van hierdie variasie in gevoeligheid van spesies, kan die assessering van die risiko wat besoedelingstowwe vir organismes inhou wel op ’n meer wetenskaplike grondslag bedryf word. Hierdie konsep gaan uit van die standpunt dat indien kwaliteitskriteriums opgestel word wat die sensitiefste spesies beskerm, alle ander spesies outomaties beskerm word. Hierdie bydrae fokus op die gebruik van sensitiwiteitsverspreidings van spesies as metode en kyk oorsigtelik en krities na die aard en toepassings van die ekstrapolasiemodelle wat op hierdie verspreidings gebaseer is. Die moontlike aanwending daarvan en die argumente ten gunste daarvan en daarteen word bespreek. Die gevolgtrekking word gemaak dat spesie-sensitiwiteitsverspreidings wel nuttige aanwending kan vind, maar dat  gegewens oor die gevoeligheid van plaaslike spesies  baie skaars is. Hoewel dit reeds bruikbaar is, kan die algemene aanwending daarvan  in Suid-Afrika aansienlik uitgebrei word indien meer navorsing gedoen word om betroubare toksisiteitsgegewens vir verskillende spesies in te win, sodat die model meer verfyn kan word. Daarvoor moet gestandaardiseerde toksisiteitstoetse vir plaaslike spesies eers ontwikkel word.

  13. Gevolgen van hydrocephalus

    NARCIS (Netherlands)

    Tromp, Cornelis Nicolaas

    1984-01-01

    Hydrocephalus is een aandoening van het centrale zenuwstelsel die de clinicus vrij lang voor grote problemen ten aanzien van de behandeling heeft qesteld. Door de toepassing van de ventriculo-atriale shunttechniek zijn de behandelingsmogelijkheden van hydrocephalus sterk verbeterd. Deze studie

  14. Responses of spinal dorsal horn neurons to foot movements in rats with a sprained ankle

    Science.gov (United States)

    Kim, Jae Hyo; Kim, Hee Young; Chung, Kyungsoon

    2011-01-01

    Acute ankle injuries are common problems and often lead to persistent pain. To investigate the underlying mechanism of ankle sprain pain, the response properties of spinal dorsal horn neurons were examined after ankle sprain. Acute ankle sprain was induced manually by overextending the ankle of a rat hindlimb in a direction of plantarflexion and inversion. The weight-bearing ratio (WBR) of the affected foot was used as an indicator of pain. Single unit activities of dorsal horn neurons in response to plantarflexion and inversion of the foot or ankle compression were recorded from the medial part of the deep dorsal horn, laminae IV-VI, in normal and ankle-sprained rats. One day after ankle sprain, rats showed significantly reduced WBRs on the affected foot, and this reduction was partially restored by systemic morphine. The majority of deep dorsal horn neurons responded to a single ankle stimulus modality. After ankle sprain, the mean evoked response rates were significantly increased, and afterdischarges were developed in recorded dorsal horn neurons. The ankle sprain-induced enhanced evoked responses were significantly reduced by morphine, which was reversed by naltrexone. The data indicate that movement-specific dorsal horn neuron responses were enhanced after ankle sprain in a morphine-dependent manner, thus suggesting that hyperactivity of dorsal horn neurons is an underlying mechanism of pain after ankle sprain. PMID:21389306

  15. Overzicht van de onderzoekresultaten van kroketten, bitterballen en frikandellen van 1986

    NARCIS (Netherlands)

    Cazemier, G.; Veen, van der N.G.

    1987-01-01

    In 1986 werden in opdracht van de AID 54 monsters frikandellen en 237 monsters kroketten en bitterballen door het RIKILT onderzocht op de eisen, zoals die zijn vastgelegd in de Kwaliteitsverordening Kroketten, Bitterballen en Frika(n)dellen. In dit verslag zijn de analyseresultaten van deze monsters

  16. Study on CT scanning technique of inferior horn of lateral ventricle

    International Nuclear Information System (INIS)

    Kakoi, Iwao; Okubo, Mitsuo; Nakamura, Sumio; Yoshinaga, Toshihiko; Shimono, Tetsuo

    1984-01-01

    It is said that temporal lobe epilepsy (TLE), one of the incurable epilepsies, results from the lesions of various structrues located in the medial and deep portion of the temporal lobe such as the hippocampus and amygdaloid nucleus. Routine CT scanning techniques cannot adequately delineate these structures in the assessment of TLE. The anatomical relationship between these medial temporal structures and the inferior horn of lateral ventricle which is lateral to them and easily identified by CT lead us to believe that the sections through the longitudinal plane of the inferior horn may clearly delineate them. The present experimental study was undertaken to develop the CT scan technique of the inferior horn of lateral ventricle, which results in the clear delineation of the region of the hippocampus and amygdaloid nucleus. As a result, A total of the 3-4 reversed axial 5 mm-thick section centered at 2.5 cm cephalad to the roof of the external auditory canal at a reversed 25 0 angle to ABL are adequate to delineate the inferior horn and the medial temporal structures. This scan technique is considered to be useful in the assessment of TLE. (author)

  17. Further Issues in Determining the Readability of Self-Report Items: Comment on McHugh and Behar (2009)

    Science.gov (United States)

    Schinka, John A.

    2012-01-01

    Objective: Issues regarding the readability of self-report assessment instruments, methods for establishing the reading ability level of respondents, and guidelines for development of scales designed for marginal readers have been inconsistently addressed in the literature. A recent study by McHugh and Behar (2009) provided new findings relevant…

  18. ʼn Kritiese evaluering van wetgewing wat die gesondheid van ...

    African Journals Online (AJOL)

    User

    gereguleer wat "basiese watervoorsiening" omskryf as "die voorgeskrewe minimum standaard van watervoorsieningsdienste wat nodig is vir die betroubare voorsiening van ʼn toereikende hoeveelheid en gehalte water aan huishoudings, met inbegrip van informele huishoudings, om lewe en persoonlike higiëne te steun".

  19. Design and Simulation of Horn Antenna Using CST Software for GPR System

    Science.gov (United States)

    Joret, Ariffuddin; Sulong, M. S.; Abdullah, M. F. L.; Madun, Aziman; Haimi Dahlan, Samsul

    2018-04-01

    Detection of underground object can be made using a GPR system. This system is classified as a non-destructive technique (NDT) where the ground areas need not to be excavated. The technique used by the GPR system is by measuring the reflection of electromagnetic wave signal produced and detected by antenna which is known as the transmitter and the receiver antenna. In this study, a GPR system was studied by means of simulation using a Horn antenna as a transceiver antenna. The electromagnetic wave signal in this simulation is produced by current signal of an antenna which having a shape of modulation of Gaussian pulse which is having spectrum from 8 GHz until 12 GHz. CST and MATLAB Software are used in this GPR system simulation. A model of a Horn antenna has been designed using the CST software before the GPR’s system simulation modeled by adding a model of background in front of the Horn antenna. The simulation results show that the output signal of the Horn antenna can be used in detecting embedded object which are made from material of wood and iron. In addition, the simulation result has successfully developed a 3D model image of the GPR system using output signal of the Horn antenna. The embedded iron object in the GPR system simulation can be seen clearly by using this 3D image.

  20. Chimera states in bipartite networks of FitzHugh-Nagumo oscillators

    Science.gov (United States)

    Wu, Zhi-Min; Cheng, Hong-Yan; Feng, Yuee; Li, Hai-Hong; Dai, Qiong-Lin; Yang, Jun-Zhong

    2018-04-01

    Chimera states consisting of spatially coherent and incoherent domains have been observed in different topologies such as rings, spheres, and complex networks. In this paper, we investigate bipartite networks of nonlocally coupled FitzHugh-Nagumo (FHN) oscillators in which the units are allocated evenly to two layers, and FHN units interact with each other only when they are in different layers. We report the existence of chimera states in bipartite networks. Owing to the interplay between chimera states in the two layers, many types of chimera states such as in-phase chimera states, antiphase chimera states, and out-of-phase chimera states are classified. Stability diagrams of several typical chimera states in the coupling strength-coupling radius plane, which show strong multistability of chimera states, are explored.

  1. Greenberger-Horne-Zeilinger nonlocality for continuous-variable systems

    International Nuclear Information System (INIS)

    Chen Zengbing; Zhang Yongde

    2002-01-01

    As a development of our previous work, this paper is concerned with the Greenberger-Horne-Zeilinger (GHZ) nonlocality for continuous-variable cases. The discussion is based on the introduction of a pseudospin operator, which has the same algebra as the Pauli operator, for each of the N modes of a light field. Then the Bell-Clauser-Horne-Shimony-Holt inequality is presented for the N modes, each of which has a continuous degree of freedom. Following Mermin's argument, it is demonstrated that for N-mode parity-entangled GHZ states (in an infinite-dimensional Hilbert space) of the light field, the contradictions between quantum mechanics and local realism grow exponentially with N, similarly to the usual N-spin cases

  2. Karakterisering van het Etimologiewoordeboek van Afrikaans (EWA

    Directory of Open Access Journals (Sweden)

    Fons Moerdijk

    2011-10-01

    Full Text Available

    Samenvatting: Zesendertig jaar na Afrikaanse etimologieë van Boshoff en Nienaber verscheener in 2003 een nieuw etymologisch woordenboek van het Afrikaans: het Etimologiewoordeboek vanAfrikaans (EWA. Tussen die twee woordenboeken bestaat een wezenlijk verschil. Het werk vanBoshoff en Nienaber is vrijwel alleen toegankelijk voor specialisten en niet specifiek bedoeld vooreen breed publiek. EWA is juist allereerst bestemd voor de leek die zich interesseert voor de oorsprongen de geschiedenis van de eigen taal. Daarnaast biedt het ook de etymoloog en historischtaalkundige een hoop gegevens en inspiratie voor nader onderzoek. Als etymologisch woordenboekbezit EWA een aantal bijzondere, eigen kenmerken. De selectie van de woorden is bepaalddoor het beoogde gebruikerspubliek. Als gevolg daarvan bevat EWA verscheidene typen woordendie in traditionele etymologische woordenboeken doorgaans veronachtzaamd worden, zoals afleidingen,samenstellingen, neologismen en gemeenzame spreektaalwoorden. De artikelstructuurwordt gekenmerkt door een hoge graad van uniformiteit en consistentie. Het accent ligt op dezogenaamde etymologia proxima, de etymologie waarbij men één stap teruggaat en de meestdirecte herkomst van het woord biedt. Voorts is speciale aandacht besteed aan polysemie: nietalleen de herkomst van de dominante betekenis van een woord wordt gegeven, maar ook die vanzijn eventuele andere betekenis(sen. Benoemingsmotieven komen ook veelvuldig aan bod. In eeneventuele tweede druk zouden opvallende verschillen in vorm of betekenis altijd verklaard of inieder geval besproken moeten worden. Dat blijft nu nogal eens achterwege. Ook zou voorafgaandaan zo'n volgende editie meer onderzoek naar woordhistorisch materiaal uit primaire bronnenvoor met name de 17de–19de eeuw verricht moeten worden. Het zou mooi zijn als deze eersteuitgave van EWA de aanleiding tot een dergelijk onderzoek zou vormen.

    Sleutelwoorden: BENOEMINGSMOTIEF, ETYMOLOGIA PROXIMA

  3. Assembly of the magnetic horns under way

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    Ahmed Cherif of the EST Division's Metrology Service checks the straightness of the inner conductor of the first magnetic horn for CNGS. The tolerance is less than one millimetre over a length of approximately 6.5 metres.

  4. Kwantificatie van de invloed van regen op de verkeerdoorstroming

    NARCIS (Netherlands)

    Calvert, S.C.; Van Stralen, W.; Molin, E.J.E.

    2013-01-01

    Kwantificatie van de invloed van regen op de verkeerdoorstroming Het is bekend dat het weer invloed heeft op het verkeer op snelwegen, en in het bijzonder filevorming. Op de eerste plaats wordt de wegcapaciteit tijdelijk beïnvloed door een verandering in rijgedrag van bestuurders. Ten tweede

  5. Resultaten van het RWS-RIKZ JAMP 2005 monitoringsprogramma van bot (Platichthys flesus L.) : Biologische gegevens van bot en milieukritische stoofen in bot

    NARCIS (Netherlands)

    Kotterman, M.J.J.

    2006-01-01

    In opdracht van RWS-RIKZ werden door het RIVO werkzaamheden uitgevoerd in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens van bot. De werkzaamheden bestonden uit het verzamelen van monsters bot waarvan

  6. 'Uytnemende Schilder van Antwerpen' : Joos van Cleve: atelier, productie en werkmethoden

    NARCIS (Netherlands)

    Leeflang, Micha

    2007-01-01

    Joos van Cleve (ca. 1480-1541) was een van de meest invloedrijke Antwerpse schilders in de eerste helft van dezestiende eeuw. Hij kreeg belangrijke opdrachten voor portretten en altaarstukken van onder anderen de Franse koning Frans I. Micha Leeflang onderzocht met name de materieel-technische

  7. Ultrasonic horn design for ultrasonic machining technologies

    Directory of Open Access Journals (Sweden)

    Naď M.

    2010-07-01

    Full Text Available Many of industrial applications and production technologies are based on the application of ultrasound. In many cases, the phenomenon of ultrasound is also applied in technological processes of the machining of materials. The main element of equipments that use the effects of ultrasound for machining technology is the ultrasonic horn – so called sonotrode. The performance of ultrasonic equipment, respectively ultrasonic machining technologies depends on properly designed of sonotrode shape. The dynamical properties of different geometrical shapes of ultrasonic horns are presented in this paper. Dependence of fundamental modal properties (natural frequencies, mode shapes of various sonotrode shapes for various geometrical parameters is analyzed. Modal analyses of the models are determined by the numerical simulation using finite element method (FEM design procedures. The mutual comparisons of the comparable parameters of the various sonotrode shapes are presented.

  8. Resultaten van het RWS-RIKZ JAMP 2006 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot

    OpenAIRE

    Kotterman, M.J.J.; Barneveld, van, E.

    2007-01-01

    De in dit rapport beschreven werkzaamheden werden door IMARES uitgevoerd op basis van een opdracht van Rijkswaterstaat- Rijksinstituut voor Kust en Zee (RIKZ) in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens van bot. De benodigde monsters bot werden verzameld door IMARES. Tevens werd materiaal van bot verzameld voor chemisch onderzoek en geanalyseerd.

  9. Toepassing van de basisvrachtbenadering op fosfaat van compost; advies

    NARCIS (Netherlands)

    Ehlert, P.A.I.

    2005-01-01

    Bij het vormgeven van het stelsel van gebruiksnormen is een maatschappelijke discussie ontstaan over de aanvoer van fosfaat met grond in compost en zwarte grond. Deze deskstudie gaat in op vragen die hierbij gesteld zijn. Het aandeel grond in compost en zwarte grond en de hoeveelheid fosfaat daarin

  10. "Die beiteltjie" van N.P. van Wyk Louw en

    African Journals Online (AJOL)

    Tom

    belangrike kenmerk van die postmodernisme is, wil ek dit nie tot abso- lute kenmerk verhef nie. Een van die .... oorgang vanaf 'n epistemologiese ingesteldheid tot 'n ontologiese ingesteldheid demonstreer en ..... the neglected and a whole range of phenomena which have been denied a history. Die formulering van die ...

  11. Invioed van de zuurtegraad van varkensurine op de ammoniakemissie

    NARCIS (Netherlands)

    Eizing, A.; Aarnink, A.J.A.

    1996-01-01

    Dit rapport beschrijft het effect van een lagere urine-pH op de ammoniakemissie in een varkensstal. Het onderzoek is uitgevoerd in een modelopstelling met de zogenaamde stalsimulator, waarbij de invloed van de urine-pH op de ammoniakemissie werd onderzocht. Hiervoor werd de urine van vleesvarkens op

  12. Ontwerp van een interventie om de groenteconsumptie van jongeren te verhogen

    NARCIS (Netherlands)

    Gilissen, L.J.W.J.; Meer, van der I.M.; Reinders, M.J.; Sluis, van der A.A.; Woltering, E.J.

    2011-01-01

    In dit rapport zullen verschillende mogelijke strategieën besproken worden die ingezet kunnen worden om de consumptie van groenten door jongeren te verhogen. De centrale vragen van dit onderzoek zijn: 1) Hoe kunnen groenten in het eetpatroon van jongeren een vaste plek van voldoende omvang krijgen?

  13. Reductie van het kiemgetal van bacteriën op champignons : literatuuroverzicht

    NARCIS (Netherlands)

    Baars, J.J.P.

    2006-01-01

    Dit rapport bevat een literatuurstudie waarin een overzicht wordt gegeven van de beschikbare literatuur m.b.t. hoogte van het kiemgetal van bacteriën op champignons en de grondstoffen voor de champignonteelt, aanwezigheid van pathogene bacteriën op champignons die in de retail worden aangeboden en

  14. Het handwerk van de theorie in de praktijk van het Sociaal Werk

    Directory of Open Access Journals (Sweden)

    Hans Oostrik

    2010-06-01

    Sociaal werk is een narratieve praktijk. Vanuit een sociaal-constructivistische invalshoek, reflecteert de auteur in dit artikel op de vraag hoe vanuit deze narratieve praktijk tot theoretische handelingsmodellen kan worden gekomen. Drie elementen spelen daarbij een rol, welke door de auteur worden behandeld. Ten eerste zijn dat de vaardigheden van de professional, die bijdragen aan conceptualisering, zoals daar zijn: het signaleren van kwesties, het analyseren en vormen van begrippen en het ontwerpen van conceptuele modellen. Ten tweede kunnen theoretische modellen in de praktijk van het sociaal werk gebruikt worden als instrumenten om die praktijk als het ware te theoretiseren of reflectief te maken. De praktijk wordt met behulp van modellen zoals scenario’s en stappenplannen, verbeterd en verder ontwikkeld. Ten derde bestaat het handwerk van de theorie in het innemen van een theoretische houding of praktische verstandigheid waardoor sociaal werkers beter om kunnen gaan met de complexiteit van hun praktijk.

  15. Effecten van wintergewassen op verliezen en benutting van stikstof bij de teelt van snijmaos; verslag van onderzoek op ROC Aver-Heino tussen voorjaar 1991 en najaar 1994

    NARCIS (Netherlands)

    Dijk, van W.; Schröder, J.J.; Holte, ten L.; Groot, de W.J.M.

    1995-01-01

    Tussen 1988 en 1994 is onderzoek verricht naar de effecten van wintergewassen (winterrogge en onderzaai van gras) op de verliezen en benutting van stikstof bij continuteelt van snijmaos op zandgrond. Gemiddeld over de gehele onderzoeksperiode nam zowel rogge als gras 30-40 kg/ha op in de

  16. Gebruik van TaqMan PCR voor het kwantificeren van Fusarium spp. en Microdochium nivale in gewassen en gewasresten van tarwe.

    NARCIS (Netherlands)

    Köhl, J.; Haas, de B.H.; Kastelein, P.; Burgers, S.L.G.E.; Waalwijk, C.

    2005-01-01

    Infecties van tarwe door toxigene Fusarium spp. kunnen leiden tot contaminatie van graan met diverse mycotoxines. Voorkoming van mycotoxinebesmetting is uit oogpunt van voedselveiligheid, diergezondheid, maar ook bedrijfseconomisch, vereist. Voor vier Fusariumsoorten is een kwantitatieve detectie

  17. Status report of seabird surveys at Horns Rev, 2000-2001

    International Nuclear Information System (INIS)

    Kjaer Christensen, T.; Clausager, I.; Krag Petersen, I.

    2002-01-01

    The present report presents the results of three bird surveys conducted in the Horns Rev area during the second half of 2001. Due to poor weather conditions in December 2001, the last survey was, however, performed on 7 January 2002. The surveys are part of the base-line investigations of birds performed in relation to the proposed construction of an offshore wind farm at Horns Rev in the Danish part of the North Sea ca 14 km southwest of Blaevandshuk. The results of the surveys during August 2001 - January 2002 are presented together with the results obtained during the period August 2000 - April 2001, and are also compared to results obtained during the period August 1999 - April 2000. Based on the distribution of the most abundant bird species recorded during 16 aerial surveys performed during August 1999 - January 2002, there were no indications that the wind farm area was of any particular importance to the birds' exploitation of the Horns Rev area. Fish-eating species like divers, gannet, terns, auks and gulls generally showed scattered and variable distributions, mainly occurring in the areas north and south of Horns Rev, and with low numbers on the reef proper and within the planned wind farm area. The distribution of benthic foraging species, eider and common Scoter, showed that they mainly exploited the coastal parts of the area off Blaevandshuk and Skallingen, although common scoter was found in relatively high numbers on the southeast slopes of the Horns Rev and within the wind farm area in the April 2001 survey. Common scoters occurred in very high numbers in January 2002. This was probably related to increased immigration of birds from the inner Danish waters during a cold period in late December 2001. Preference analyses of bird exploitation of the Horns Rev area showed that if the birds completely avoid the wind farm area after erection of the wind turbines, this will affect less than 1% of the various species, except divers where 1.58% will be

  18. Van die Gasredakteur

    African Journals Online (AJOL)

    cherish and teach.'1. Die Fakulteit Geneeskunde van die Universiteit van die Oranje-Vrystaat het pragtig gegroei ge- durende die eerste 21 jaar van sy bestaan. Die entoesiasme, doelgerigtheid, harde werk en inisia- tiewe van 'n groot aantal persone was hiervoor verantwoordelik. 'If we see a bit more clearly than they, it is ...

  19. De werking van de hydro- en acetylverbindingen van kinidine en kinine op het hart van Rana esculenta

    NARCIS (Netherlands)

    Sibie, Johan Dirk

    1942-01-01

    In hoofdstuk I werd een inleiding gegeven betreffende de geschiedenis van de kina en van het begin der kinacultuur op Java, de chemie der kinaälkaloïden en enkele aspecten der pharmacologische werking van de kinaderivaten. ... Zie: Samenvatting

  20. Introductie van de Chevon : een zoektocht naar de afzet van geitenvlees

    NARCIS (Netherlands)

    Eleveld, I.; Louis Bolk,

    2008-01-01

    Het afmesten en afzetten van lammeren op een biologisch bedrijf is geen gemakkelijke weg. Aan de smaak van het vlees zal het niet liggen. De chevon, lammeren met een leeftijd van 5 tot 7 maand, geven vlees met karakter: een vleugje geit! De onbekendheid van het vlees vereist een zorgvuldige

  1. De auteursrechtelijke aansprakelijkheid van intermediairs, het kabelpiratenarrest revisited in de tijd van Internet

    NARCIS (Netherlands)

    Dommering, E.J.; Verkade, D.W.F.; Visser, D.J.G.

    1998-01-01

    Het kabelpiratenarrest vestigde de auteursrechtelijke aansprakelijkheid van de kabelexploitant voor het verspreiden van gestolen films die clandestien na de uitzendingen van de reguliere omroepen werden uitgezonden met gebruikmaking van de centrale antenne-inrichting van KTA. Zouden wij de

  2. De mislukte missie van mr. Maarten van Naarden als luitenant-stadhouder van Stad en Lande 1541-1557

    Directory of Open Access Journals (Sweden)

    F. Postma

    2005-01-01

    Full Text Available Maarten van Naarden’s failed mission  as lieutenant-stadholder of the province of Groningen, 1541-1557In November 1557, Maarten van Naarden resigned from his post as lieutenant-stadholder of the province of Groningen and left the province after staying there for sixteen years. Van Naarden’s resignation was preceded by a number of conflicts with the Groningen town council and the States of the province. However, these conflicts were neither confined to Van Naarden nor the province of Groningen. They had also taken place  in other provinces in the Northeast of the Netherlands. What makes Van Naarden’s clash with the Groningen provincial authorities in the 1550s so important is that it clarifies the principles that were at stake. These principles were less apparent in the conflicts between the representatives of the central government in Friesland, Overijssel and Gelderland. It was a struggle in which Van Naarden tried, as his opponents rightly saw it, to introduce the ‘constitution’ of Utrecht in the town and county of Groningen. In Utrecht, which had been annexed by Charles V in 1528, the autonomy of the province had been reduced to next to nothing. The only authority still resting with the States was the surveillance of the provincial dikes and waterways. All their other areas of authority had been taken over by the provincial court of which Van Naarden had been president between 1537 and 1541. To avoid the same thing happening to them, Van Naarden was ordered to appear before the Groningen States assembly in January 1556. At this meeting, the weakness of his position became crystal clear. None of the members took his side. Because the government lacked the means to keep Van Naarden in office, his withdrawal from Groningen was inevitable. What we see behind the story of Van Naarden more clearly than in the conflicts in the neighbouring provinces is the outline of the absolute state that Van Naarden’s superiors had in mind for the

  3. General proof of the Greenberger-Horne-Zeilinger theorem

    International Nuclear Information System (INIS)

    Chen Zeqian

    2004-01-01

    It is proved that all states of three spin-(1/2) particles exhibiting an 'all versus nothing' contradiction between quantum mechanics and the local realism of Einstein, Podolsky, and Rosen are exactly the Greenberger-Horne-Zeilinger (GHZ) states and the states obtained from them by local unitary transformations. The proof is obtained by showing that there are at most four elements (except for a different sign) in a set of mutually commuting nonlocal spin observables in the three-qubit system and using the certain algebraic properties that Pauli's matrices satisfy. We show that only does such a set of four nonlocal spin observables present a Greenberger-Horne-Zeilinger-Mermin-like argument. This also reveals the equivalence between the GHZ theorem and maximal violation of the Bell inequality

  4. DIE ROL VAN DIE TAALWETENSKAP IN DIE ONTWIKKELING VAN ...

    African Journals Online (AJOL)

    aanslag op die sogenaamde "Intentional Fallacy", heelwat verder. n. Mens sou hier eintlik ook op die invloed van Lacan se toepassing van. De Sacs sure op Freud moet wys, en op Macherey se Theory of Literary. Production. Barthes is naamlik besig om repressie teen te werk, en die teks as produksieproses in stede van ...

  5. 'n Voordrag van Adrianus van Seims oor hermeneutiek | Boshoff ...

    African Journals Online (AJOL)

    A lecture on hermeneutics by Adrianus van Seims This article is the content of a lecture on hermeneutics given by A van Seims. After a few opening words on the introduction to the lecture and its content, the presentation is reproduced in its entirety. Van Seims considers that hermeneutics is concerned not only with ...

  6. "Krakende kaken"; psychiatrische beschouwingen over het syndroom van het pijnlijke, slecht functionerende kaakgewricht (Arthrosis deformans van het kaakgewricht of het syndroom van Costen)

    NARCIS (Netherlands)

    Schuler, Jacques

    1966-01-01

    Naar aanleiding van klinische indrukken en mede op grond van literatuurgegevens werd een psychiatrisch onderzoek verricht naar het aandeel van psychogene factoren bij het tot stand komen van kaakgewrichtsklachten. Het klachtencomplex dat van stoornissen in de functie van het kaakgewricht het gevolg

  7. Ruptured non-communicating rudimentary horn of unicornuate uterus at 14 weeks of pregnancy: a case report

    Directory of Open Access Journals (Sweden)

    Arun Kumar

    2013-09-01

    Full Text Available Rudimentary horn is one of the rarest congenital uterine anomalies and consists of a relatively normal appearing uterus on one side with a rudimentary horn on the other side. Pregnancy in the rudimentary horn of the uterus is a rare form of ectopic pregnancy of which most of the patients present in second trimester in haemorrhagic shock and severe anaemia due to rupture. We report a case of ruptured rudimentary horn at 14 weeks of pregnancy with shock and severe anaemia. A 30 yr old G2P1L1 with last child birth 4 yrs back reported to casualty with acute abdominal pain since 3 hrs, bleeding PV and vomiting since one hr. Ultrasound done showed haemoperitoneum with fetus of 14 weeks. Emergency laparotomy was done with excision of the rudimentary horn was done.

  8. Ruptured non-communicating rudimentary horn of unicornuate uterus at 14 weeks of pregnancy: a case report

    Directory of Open Access Journals (Sweden)

    Arun Kumar

    2013-01-01

    Full Text Available Rudimentary horn is one of the rarest congenital uterine anomalies and consists of a relatively normal appearing uterus on one side with a rudimentary horn on the other side. Pregnancy in the rudimentary horn of the uterus is a rare form of ectopic pregnancy of which most of the patients present in second trimester in haemorrhagic shock and severe anaemia due to rupture. We report a case of ruptured rudimentary horn at 14 weeks of pregnancy with shock and severe anaemia. A 30 yr old G2P1L1 with last child birth 4 yrs back reported to casualty with acute abdominal pain since 3 hrs, bleeding PV and vomiting since one hr. Ultrasound done showed haemoperitoneum with fetus of 14 weeks. Emergency laparotomy was done with excision of the rudimentary horn was done.

  9. Role of Noise in Complex Networks of FitzHugh-Nagumo Neurons

    International Nuclear Information System (INIS)

    Fortuna, Luigi; Frasca, Mattia; La Rosa, Manuela

    2005-01-01

    This paper deals with the open question related to the role of noise in complex networks of interconnected FitzHugh-Nagumo neurons. In this paper this problem is faced with extensive simulations of different network topologies. The results show that several topologies behave in an optimal way with respect to the range of noise level leading to an improvement in the stimulus-response coherence, while other with respect to the maximum values of the performance index. The best results in terms of both the suitable noise level and high stimulus response coherence have been obtained when a diversity in neuron characteristic parameters has been introduced and the neurons have been connected in a small-world topology

  10. Discovery, Development, and Evaluation of a Horn Fly-Isolated (Diptera: Muscidae) Beauveria bassiana (Hypocreales: Cordyciptaceae) Strain From Florida, USA

    Science.gov (United States)

    Holderman, Christopher J.; Wood, Lois A.; Geden, Christopher J.

    2017-01-01

    The horn fly, Haematobia irritans (L.) is an important cattle pest and traditionally has been managed using insecticides; however, many horn fly populations are insecticide-resistant in United States. Use of alternative control techniques has been limited because of the challenges of managing a fly pest on pastured cattle. After the discovery of a wild horn fly infected with Beauveria bassiana in Florida, the fungus was cultured and evaluated for efficacy against laboratory-reared horn flies. This fungal strain was selected for increased virulence by passage through laboratory-reared horn fly hosts to shorten interval from infection to fly death and subsequent conidia formation, properties important to future use of the fungus as a biological control agent against horn flies. After seven passages through horn fly hosts, fly mortality was not significantly accelerated as evaluated through LT50 values, but conidia were readily produced from these killed flies. Although further development is needed to improve fungal efficacy, this fungal strain holds promise as a biological control agent for inclusion in horn fly integrated pest management programs. PMID:28423414

  11. Voedselverspilling, waarden van voedsel in de keten : de mogelijke rol van het groene onderwijs bij het oplossen van een maatschappelijke opgave

    OpenAIRE

    Waarts, Y.R.; Onwezen, M.C.; Wiersinga, R.C.; Eppink, M.M.; Thoden van Velzen, E.U.; Timmermans, A.J.M.

    2009-01-01

    Het doel van deze verkenning is om op basis van literatuur en interviews met belangrijkste stakeholders een visie te formuleren over de wijze waarop het groene onderwijs een bijdrage kan leveren aan het verminderen van voedselverliezen binnen alle schakels van de keten inclusief de consument, en aan de nuttige toepassing van reststromen.

  12. die impak van metodologie op die verstaan van die nuwe testament

    African Journals Online (AJOL)

    voorbeeld eers een maal deur die bril van die vorm- en redaksiekritiek na die Evangelies gekyk het, dink jy vir altyd anders oor hulle tot- standkoming. Inderdaad, nuwe metodes lei tot nuwe perspektiewe! Dit is dan ook waar die fokus van hierdie artikel val: die impak van metodologie op die verstaan van die Nuwe ...

  13. Effectieve bestrijding van varroa

    NARCIS (Netherlands)

    Cornelissen, B.; Blacquiere, T.; Steen, van der J.J.M.

    2010-01-01

    De varroa mijtziekte (Varroa destructor) is de belangrijkste bedreiging van de Europese honingbij. Wintersterfte van honingbijen is in de meeste gevallen toe te schrijven aan deze ziekte. Deze brochure van de WUR biedt informatie over de biologie van varroa, de effecten van varroa op honingbijen en

  14. Revisiting the Battle of the Little Big Horn

    National Research Council Canada - National Science Library

    Burns, Matthew

    2000-01-01

    The Battle of the Little Big Horn has captured the interest of historians, scholars, and military enthusiasts since the day that over 200 United States soldiers under General George Armstrong Custer's...

  15. Sedimentary processes and depositional environments of the Horn River Shale in British Columbia, Canada

    Science.gov (United States)

    Yoon, Seok-Hoon; Koh, Chang-Seong; Joe, Young-Jin; Woo, Ju-Hwan; Lee, Hyun-Suk

    2017-04-01

    The Horn River Basin in the northeastern British Columbia, Canada, is one of the largest unconventional gas accumulations in North America. It consists mainly of Devonian shales (Horn River Formation) and is stratigraphically divided into three members, the Muskwa, Otterpark and Evie in descending order. This study focuses on sedimentary processes and depositional environments of the Horn River shale based on sedimentary facies analysis aided by well-log mineralogy (ECS) and total organic carbon (TOC) data. The shale formation consists dominantly of siliceous minerals (quartz, feldspar and mica) and subordinate clay mineral and carbonate materials, and TOC ranging from 1.0 to 7.6%. Based on sedimentary structures and micro texture, three sedimentary facies were classified: homogeneous mudstone (HM), indistinctly laminated mudstone (ILM), and planar laminated mudstone (PLM). Integrated interpretation of the sedimentary facies, lithology and TOC suggests that depositional environment of the Horn River shale was an anoxic quiescent basin plain and base-of-slope off carbonate platform or reef. In this deeper marine setting, organic-rich facies HM and ILM, dominant in the Muskwa (the upper part of the Horn River Formation) and Evie (the lower part of the Horn River Formation) members, may have been emplaced by pelagic to hemipelagic sedimentation on the anoxic sea floor with infrequent effects of low-density gravity flows (turbidity currents or nepheloid flows). In the other hand, facies PLM typifying the Otterpark Member (the middle part of the Horn River Formation) suggests more frequent inflow of bottom-hugging turbidity currents punctuating the hemipelagic settling of the background sedimentation process. The stratigraphic change of sedimentary facies and TOC content in the Horn River Formation is most appropriately interpreted to have been caused by the relative sea-level change, that is, lower TOC and frequent signal of turbidity current during the sea

  16. HE GATES OF HORN AND IVORY: A GEOGRAPHICAL MYTH

    Directory of Open Access Journals (Sweden)

    Jörg Schulte

    2016-12-01

    Full Text Available The articles proposes a new interpretation of the Homeric myth of the gates of horn and ivory that occurs in Book 19 of the Odyssey. It first argues that horn (the material of the southern gate in neoplatonic commentaries can be found in the sign of Capricornus. More complex is the argument that also ivory (the material of the northern gate in neoplatonic commentaries is derived from astronomical myths: the myths discussed are the myth of Adonis (beginning with the story about the ivory statue carved by Pygmalion, the myths of the Erymanthian, Studia Litterarum. Vol. 1, no 3–4 Jörg Schulte 83 the Calydonian, and the Ephesian boars, the myth of Orion, and the myth of the constellation ursa major. An enquiry into the occurance of ivory in Greek mythology leads to the hypothesis that the constellation ursa major was identified with a boar (with ivory tusks. The hypothesis implies that the gates of horn and ivory were already at the times of Homer understood as an astronomical myth that described the northernmost and southernmost points of the sky.

  17. Prediking aan die hand van die metafoor van fiksieskryf

    African Journals Online (AJOL)

    p1243322

    HTS 64(3) 2008 siening van die self en waarheid. In die pre-moderne paradigma kan die dominante metafoor verstaan word aan die hand van 'n spieël wat die lig uit 'n transendente oorsprong weerkaats, terwyl die moderne paradigma uitgedruk word met die metafoor van 'n lamp wat 'n eie, oorspronklike lig binne die self.

  18. ’n Etiek van liefde: Die etiese perspektiewe van die Heidelbergse Kategismus

    Directory of Open Access Journals (Sweden)

    Koos Vorster

    2013-06-01

    Full Text Available Hierdie artikel behandel die etiese perspektiewe van die Heidelbergse Kategismus – een van die prominente belydenisskrifte in die gereformeerde tradisie. Die etiese relevansie is ingebed in die konfessie se verklaring van die tien gebooie. Die artikel verduidelik dat die etiek van die Heidelbergse Kategismus ten diepste ’n karakteretiek is en dat dit gelowiges oproep tot ’n etiek van liefde. Hierdie liefde sluit in liefde vir die verbondsgemeenskap, die bediening van die Woord, die heiligheid van God en die waardigheid van mense, die gemeenskap van die gelowiges, gesag, die lewe, die huwelik, privaatbesit en arbeid asook waarheid en geregtigheid. As gevolg van die sinekdogeekarakter van die wet is hierdie etiek van liefde vandag baie relevant. This article deals with the ethical relevance of one of the prominent confessions in the reformed tradition, namely the Heidelberg Cathechism. The ethical relevance lies in the confession’s elucidation of the ten commandments and its application to moral conduct. The article explains that the ethics of the Heidelberg Catechism is essentially a virtue ethics calling for an ethics of love. This love should include love for the covenantal communion, ministry of the Word, the holiness of God and the dignity of people, the communion of the saints, authority, life, marriage, private property and labour, and truth and justice. Due to the synecdochical character of the ten commandments this ethics of love is highy relevant in the present times.

  19. A Powerful Friendship: Theodore von Karman and Hugh L. Dryden

    Science.gov (United States)

    Gorn, Michael

    2003-01-01

    During their long personal friendship and professional association, Theodore von Karman (1882-1963) and Hugh L. Dryden (1898-1965) exercised a pivotal if somewhat elusive influence over American aeronautics and spaceflight. Both decisive figures in organizing scientists and engineers at home and abroad, both men of undisputed eminence in their technical fields, their range of contacts in government, academia, the armed forces, industry, and professional societies spanned the globe to an extent unparalleled then as now. Moreover, because they coordinated their activities closely, their combined influence far exceeded the sum of each one s individual contributions. This paper illustrates their personal origins as well as the foundations of their friendship, how their relationship became a professional alliance, and their joint impact on the world of aeronautics and astronautics during the twentieth century.

  20. Optimaliseren van een biovergister

    NARCIS (Netherlands)

    van der Bij, Joost; Rademaker, Mark; Visser, Klaas; de Vries, Herman

    2014-01-01

    Dit rapport beschrijft onderzoek van conversie van biomassa in een Swill-gasser geplaatst bij het Van der Valk restaurant in Cuijk. De Swill-gasser is een biomassa vergister voor restaurant afval. Het onderzoek heeft zich gericht op het optimaliseren van de data acquisitie en op het bepalen van de

  1. Kenmerkend van hierdie afdeling is die tema van ouderdom wat in ...

    African Journals Online (AJOL)

    8 Apr 2016 ... Kenmerkend van hierdie afdeling is die tema van ouderdom wat in menige van die stories voorkom. Hier is dit die onvermydelike aftakelingsproses van die liggaam (en verstand) wat 'n beduidende invloed op die skrywer het. In verhale soos “Wat 'n lieflike geraas”, “Die ou met die overall”, “Lofredes en ...

  2. Bepaling van enkele neurotransmitters, monoaminen, en metabolieten, met behulp van Continuous Flowapparatuur

    NARCIS (Netherlands)

    Eigeman L; Schonewille F; Borst M; van der Laan JW

    1986-01-01

    Bij het onderzoek in de psychofarmacologie kan kennis van de effecten van stoffen op de omzettingssnelheid van neurotransmitters een belangrijk aspect zijn. Met de huidige psychofarmaca lijken vooral de klassieke neurotransmitters zoals de monoaminen, noradrenaline, dopamine en serotonine van

  3. Kansen voor conflictbemiddeling : Verslag van een onderzoek naar de toepassingsmogelijkheden van conflictbemiddeling

    NARCIS (Netherlands)

    Geveke, Henk; Plant, Ernelies; Thieme, Marianneke; Verberk, Marielle

    1998-01-01

    In opdracht van het Platform ADR, een klankbordgroep en denktank op het gebied van alternatieve geschilbeslechting, is onderzoek verricht naar de toepasbaarheid van een specifieke vorm van Alternative Dispute Resolution (ADR): conflictbemiddeling (mediation). De onderzoeksopdracht was als volgt: het

  4. De mislukte missie van mr. Maarten van Naarden als luitenant-stadhouder van Stad en Lande 1541-1557

    NARCIS (Netherlands)

    Postma, F.

    2005-01-01

    Maarten van Naarden’s failed mission as lieutenant-stadholder of the province of Groningen, 1541-1557 In November 1557, Maarten van Naarden resigned from his post as lieutenant-stadholder of the province of Groningen and left the province after staying there for sixteen years. Van Naarden’s

  5. Ondersoek na ’n teoretiese onderskraging van boekkuns: Die toepassing van Bakhtin se dialogisme en heteroglossia op geselekteerde voorbeelde van kunstenaarsboeke

    Directory of Open Access Journals (Sweden)

    David Paton

    2012-11-01

    Full Text Available Onlangse navorsingsprojekte en konferensies oor boekkuns het gereageer op Johanna Drucker se oproep in 2005 dat noodsaaklike navorsingswerk gedoen moet word om ’n deegliker teoretiese basis vir die terrein van boekkunsproduksie te vestig. Die deelname van kunstenaars en ander praktisyns van boekkuns veroorsaak dat gesprekke en besprekings noodwendig en voorspelbaar neig na die praktyk en weg van die teorie. In die lig van die behoefte aan die bepaling van ’n toepaslike visie waarvolgens die kunsboek meer eksplisiet, ook teoreties, ondersoek kan word, ondersoek hierdie artikel Stéphane Mallarmé en Marcel Broodthaers se Un coup de dés publikasies, Buzz Spector se simplifiserende Marcel Broodthaers, Ulises Carrion se For fans and scholars alike, en Helen Douglas en Telfer Stokes se Real fiction. Hierdie spesifieke voorbeelde, en hulle onderlinge verbande en dialoog met mekaar, word ondersoek vanuit die perspektief van die Russiese filosoof en literêre teoretikus Mikhail Bakhtin se werk oor dialogisme en heteroglossia (‘ander-tongigheid’. Hierdie begrippe demonstreer die dialogiese, multivokale en veeltongige wisselwerking tussen en binne historiese werke as kultuuruitings. Deur die analise toon ek aan dat hierde begrippe toepaslike en funksionele raamwerke uitmaak vir die analise van spesifieke aspekte wat die teenwoordigheid van kunstenaarsboeke aankondig in die wêreld: selfbewustheid en omvattende diskoers wat wederkerend toepaslik is. Ek stel voor dat Bakthin se idees oor dialogisme en heteroglossie gebruik word as die teoretiese begronding van die kunstenaarsboek as ’n dinamiese visuele taal wat in ’n netwerk van ander tekste staan en deel is van die proses van die eindelose herbeskrywing van die wêreld.

  6. Resultaten van het RWS-RIKZ JAMP 2006 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot

    NARCIS (Netherlands)

    Kotterman, M.J.J.; Barneveld, van E.

    2007-01-01

    De in dit rapport beschreven werkzaamheden werden door IMARES uitgevoerd op basis van een opdracht van Rijkswaterstaat- Rijksinstituut voor Kust en Zee (RIKZ) in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De opdracht hield in het verkrijgen van biologische gegevens

  7. Voedingpraktyke en behoeftes van hulpbron-arm gemeenskappe deur die oë van laerskoolonderwysers

    Directory of Open Access Journals (Sweden)

    Ronel Ferreira

    2013-02-01

    Full Text Available In hierdie artikel bespreek ons die persepsies van onderwysers (n = 45 wat betref die voedingpraktyke van ’n steekproef laerskoolleerders en hul gesinne in ’n hulpbron-arm gemeenskap. Ons fokus spesifiek op die behoeftes, praktyke en verwagtings ten opsigte van die gebruik van voedsel, wat die produksie, keuse en voorbereiding van voedsel impliseer. Ons studie vorm die eerste deel van ’n groter institusionele navorsingprojek. Vir die doel van ons studie het ons deelnemende refleksie en aksie-gebaseerde werkwinkels gehou om data te genereer en tydens die interpretasie van bevindinge op interpretivisme staatgemaak. Hierdie studie beklemtoon die behoeftes van hulpbron-arm en werklose gemeenskapslede wat dikwels genoodsaak is om teen verlaagde pryse voedsel te koop waarvan die kwaliteit nie optimaal is nie. ’n Verskraalde ontbyt, middagete of aandete waarvan die keuse algemeen beperk is tot swart tee, pap en een of twee snye ou brood, bevestig die manifestasies van armoede in hulpbron-arm gemeenskappe. Maaltye is dikwels beperk tot groot hoeveelhede koolhidrate, min groente, ingelegde vis, pap met inkomazi en marog. Hoenderpote en afval vul soms die spyskaart aan. Onderwysers beklemtoon die feit dat gemeenskapslede tipies op skenkings van werkgewers, kerke en kruidenierswinkels staatmaak om hul voedselbegroting aan te vul. Onderwysers fokus verder op die behoeftes aan opleiding vir gemeenskapslede. Na hulle mening moet gemeenskappe ingelig word oor voedselproduksie, groentetuine, die wyses waarop die kwaliteit van grond bepaal kan word, besproeiing en die toepassing van volhoubare wisselbou. Die artikel word afgesluit met uitvoerbare en leersame wenke vir die opleiding van landelike gemeenskappe. Op grond van dié navorsingsbevindinge word ’n intervensieprogram tans ontwikkel, met die doel om dit in die onderskeie deelnemende skole te implementeer ter bevordering van gesonde voedselverwante gedrag en welsyn.

  8. New methods for isolation of keratolytic bacteria inducing intractable hoof wall cavity (Gidoh) in a horse; double screening procedures of the horn powder agar-translucency test and horn zymography.

    Science.gov (United States)

    Kuwano, Atsutoshi; Niwa, Hidekazu; Arai, Katsuhiko

    2017-01-01

    To establish a new system to isolate keratolytic bacteria from the hoof wall cavity ( Gidoh ) of a racehorse, we invented the horn powder agar-translucency (HoPAT) test and horn zymography (HZ). Using routine bacteriological techniques and these methods, we isolated five strains of keratolytic soil bacteria, which were then identified by means of 16S ribosomal RNA (rRNA) gene sequencing analysis. The findings from the study on the horse suggested that Brevibacterium luteolum played the main role in the local fragility of the hoof, eventually forming a Gidoh in coordination with four other strains of keratolytic bacteria. The double screening procedures of the HoPAT test and HZ were useful and easy techniques for isolating the keratolytic bacteria from the horn lesions.

  9. Beheersing van valse meeldauw in de akkerbouwmatige teelt van peterselie

    NARCIS (Netherlands)

    Mheen, van der H.J.C.J.; Lamers, J.G.

    2009-01-01

    In 2007 en 2008 heeft PPO-agv in opdracht van het Productwschap Akkerbouw onderzoek gedaan naar de beheersing van valse meeldauw in de akkerbouwmatige teelt van peterselie. Diverse fungicidentoepassingen zijn in staat om de peterselie (in meer of mindere mate) tegen valse meeldauw te beschermen.

  10. Insights into the development and evolution of exaggerated traits using de novo transcriptomes of two species of horned scarab beetles.

    Directory of Open Access Journals (Sweden)

    Ian A Warren

    Full Text Available Scarab beetles exhibit an astonishing variety of rigid exo-skeletal outgrowths, known as "horns". These traits are often sexually dimorphic and vary dramatically across species in size, shape, location, and allometry with body size. In many species, the horn exhibits disproportionate growth resulting in an exaggerated allometric relationship with body size, as compared to other traits, such as wings, that grow proportionately with body size. Depending on the species, the smallest males either do not produce a horn at all, or they produce a disproportionately small horn for their body size. While the diversity of horn shapes and their behavioural ecology have been reasonably well studied, we know far less about the proximate mechanisms that regulate horn growth. Thus, using 454 pyrosequencing, we generated transcriptome profiles, during horn growth and development, in two different scarab beetle species: the Asian rhinoceros beetle, Trypoxylus dichotomus, and the dung beetle, Onthophagus nigriventris. We obtained over half a million reads for each species that were assembled into over 6,000 and 16,000 contigs respectively. We combined these data with previously published studies to look for signatures of molecular evolution. We found a small subset of genes with horn-biased expression showing evidence for recent positive selection, as is expected with sexual selection on horn size. We also found evidence of relaxed selection present in genes that demonstrated biased expression between horned and horn-less morphs, consistent with the theory of developmental decoupling of phenotypically plastic traits.

  11. Insights into the development and evolution of exaggerated traits using de novo transcriptomes of two species of horned scarab beetles.

    Science.gov (United States)

    Warren, Ian A; Vera, J Cristobal; Johns, Annika; Zinna, Robert; Marden, James H; Emlen, Douglas J; Dworkin, Ian; Lavine, Laura C

    2014-01-01

    Scarab beetles exhibit an astonishing variety of rigid exo-skeletal outgrowths, known as "horns". These traits are often sexually dimorphic and vary dramatically across species in size, shape, location, and allometry with body size. In many species, the horn exhibits disproportionate growth resulting in an exaggerated allometric relationship with body size, as compared to other traits, such as wings, that grow proportionately with body size. Depending on the species, the smallest males either do not produce a horn at all, or they produce a disproportionately small horn for their body size. While the diversity of horn shapes and their behavioural ecology have been reasonably well studied, we know far less about the proximate mechanisms that regulate horn growth. Thus, using 454 pyrosequencing, we generated transcriptome profiles, during horn growth and development, in two different scarab beetle species: the Asian rhinoceros beetle, Trypoxylus dichotomus, and the dung beetle, Onthophagus nigriventris. We obtained over half a million reads for each species that were assembled into over 6,000 and 16,000 contigs respectively. We combined these data with previously published studies to look for signatures of molecular evolution. We found a small subset of genes with horn-biased expression showing evidence for recent positive selection, as is expected with sexual selection on horn size. We also found evidence of relaxed selection present in genes that demonstrated biased expression between horned and horn-less morphs, consistent with the theory of developmental decoupling of phenotypically plastic traits.

  12. Inzicht in het presteren van de executieketen : Ontwikkeling van een monitor voor het meten van Kritieke Prestatie Indicatoren in de Executieketen

    NARCIS (Netherlands)

    Braak, S.W. van den; Netten, C.P.M.; Witzenburg, R. van

    2013-01-01

    Dit zijn de voorlopige resultaten van het ontwikkelprojcet Monitor Kritieke Prestatie Indicatoren Executieketen. Het structureel meten van de vastgestelde Kritieke Prestatie Indicatoren (KPI's) behelst het periodiek verzamelen, bewerken en presenteren van grote hoeveelheden data van verschillende

  13. Vergelijking van vangsten van een 12 m pulskor met een conventionele wekkerboomkor

    NARCIS (Netherlands)

    Marlen, van B.; Ybema, M.S.; Kraayenoord, A.; Vries, de M.; Rink, G.J.

    2005-01-01

    In het kader van de ontwikkeling van een pulskor als alternatief voor de conventionele boomkor met wekkerkettingen werd in nov-dec 2004 en jan 2005 onderzoek uitgevoerd op het visserij-onderzoekingsvaartuig “Tridens” naar de vangstverschillen van beide visserijtechnieken en de overleving van door

  14. Het gebruik van antropometrische gegevens bij het opstellen van normen voor kantoorstoelen

    NARCIS (Netherlands)

    Groot, M.D. de; Voorbij, A.I.M.; Molenbroek, J.F.M.

    2003-01-01

    De fysieke belasting van werknemers is bij het invoeren van de personal computer veranderd. De werkplekken zijn zitplekken geworden. Het aantal gebruikers van kantoorstoelen is daarmee enorm toegenomen. Achter een monitor zitten mensen vaak lang achter elkaar in dezelfde houding, wat in weerwil van

  15. De verleidelijkheid van het grote gebaar : Het werk van Dogma

    NARCIS (Netherlands)

    Teerds, P.J.

    2013-01-01

    In vier portacabins op het parkeerterrein van de Delftse Faculteit Bouwkunde is nog tot volgende week de tentoonstelling 11+1 projects te zien, een overzichtstentoonstelling van het intrigerende werk van het Brusselse bureau Dogma. Met de tentoonstelling zet de faculteit na de brand in 2008 weer een

  16. De afschaffing van de bezwaarfase bij boetebesluiten van de ACM

    NARCIS (Netherlands)

    Jans, J.H.; Outhuijse, A.

    Per 1 maart 2013 ontstaat door samenvoeging van de NMa, de OPTA en de Consumentenautoriteit, de Autoriteit Consument en Markt. Om de ACM slagvaardig te laten functioneren, wordt voorgesteld het handhavingsinstrumentarium m.b.t. het markttoezicht van de ACM te vereenvoudigen. Eén van de voorstellen

  17. Implementatie van de Surviving Sepsis Campaign bundels : Monitoring van ervaringen

    NARCIS (Netherlands)

    Lilian Vloet; J. Schouten; N. Stevens; A. Rensen; A. Willems; F. Zeegers

    2011-01-01

    Sepsis komt vaak voor in ziekenhuizen. Ernstige sepsis is verantwoordelijk voor 10 - 20% van alle Intensive Care (IC) opnames en is de belangrijkste doodsoorzaak op niet-cardiale IC?s. De gemiddelde mortaliteit van volwassenen met ernstige sepsis op de IC is 33% en van volwassenen met septische

  18. Kinematic analysis of mélange fabrics: examples and applications from the McHugh Complex, Kenai Peninsula, Alaska

    Science.gov (United States)

    Kusky, Timothy M.; Bradley, Dwight C.

    1999-12-01

    Permian to Cretaceous mélange of the McHugh Complex on the Kenai Peninsula, south-central Alaska includes blocks and belts of graywacke, argillite, limestone, chert, basalt, gabbro, and ultramafic rocks, intruded by a variety of igneous rocks. An oceanic plate stratigraphy is repeated hundreds of times across the map area, but most structures at the outcrop scale extend lithological layering. Strong rheological units occur as blocks within a matrix that flowed around the competent blocks during deformation, forming broken formation and mélange. Deformation was noncoaxial, and disruption of primary layering was a consequence of general strain driven by plate convergence in a relatively narrow zone between the overriding accretionary wedge and the downgoing, generally thinly sedimented oceanic plate. Soft-sediment deformation processes do not appear to have played a major role in the formation of the mélange. A model for deformation at the toe of the wedge is proposed in which layers oriented at low angles to σ1 are contracted in both the brittle and ductile regimes, layers at 30-45° to σ1 are extended in the brittle regime and contracted in the ductile regime, and layers at angles greater than 45° to σ1 are extended in both the brittle and ductile regimes. Imbrication in thrust duplexes occurs at deeper levels within the wedge. Many structures within mélange of the McHugh Complex are asymmetric and record kinematic information consistent with the inferred structural setting in an accretionary wedge. A displacement field for the McHugh Complex on the lower Kenai Peninsula includes three belts: an inboard belt of Late Triassic rocks records west-to-east-directed slip of hanging walls, a central belt of predominantly Early Jurassic rocks records north-south directed displacements, and Early Cretaceous rocks in an outboard belt preserve southwest-northeast directed slip vectors. Although precise ages of accretion are unknown, slip directions are compatible with

  19. Omkering van de bewijslast: knelpunten in de regeling en bij de toepassing van de omkering van de sanctie (deel I)

    NARCIS (Netherlands)

    Okhuizen, E.C.G.

    2013-01-01

    De omkering van de bewijslast als processuele sanctie op het niet nakomen van de aangifteplicht en de daaraan verbonden bijkomende verplichtingen lijken niet weg te denken uit ons belastingrecht. De sanctie kwam al voor in de fiscale wetgeving die dateert van vóór de invoering van de Algemene wet

  20. Vervluchtiging van EPTC, tri-allaat en parathion na bespuiting van een kleigrond

    NARCIS (Netherlands)

    Bor, G.; Berg, van den F.; Smelt, J.H.; Peppel-Groen, van de A.E.; Leistra, M.

    1995-01-01

    Op tien tijdstippen na de bespuiting van een onbegroeide kleigrond met EPTC, tri-allaat en parathion werden de snelheden van vervluchtiging van deze middelen bepaald met de kapmethode en de theoretisch-profielmethode (TP-methode). De vervluchtiging was het hoogst op de dag van toepassing. In de

  1. Enkele aspecten van de diagnostiek van hypophysaire insufficiëntie bij kinderen

    NARCIS (Netherlands)

    Israëls, Albertus Leonard Maurits

    1960-01-01

    In dit proefschrift is een onderzoek beschreven, dat naar de functie van de hypophyse bij kinderen met tekenen van hypophysaire insufficiëntie werd ingesteld. Het onderzoek werd in de kinderkliniek van het Academisch Ziekenhuis te Groningen verricht. In hoofdstuk I is een overzicht van de literatuur

  2. VT-NRK Toepassing bioplastics : verbeteren van de technische eigenschappen van PLA-folies

    NARCIS (Netherlands)

    Molenveld, K.; Schennink, G.G.J.

    2009-01-01

    Het doel van dit project, VT-NRK toepassing bioplastics, is het genereren en verspreiden van kennis met betrekking tot het verbeteren van de technische eigenschappen van PLA folies. De kennis is bedoeld voor de bedrijven die binnen de kunststofindustrie aangesloten zijn bij de MJA én folies

  3. Rituele van plesier: Dolf van Coller se Die Bieliebalies

    Directory of Open Access Journals (Sweden)

    J. van Wyk

    1998-04-01

    Full Text Available Rituals of pleasure: Dolf van Coller’s Die Bieliebalies This article is an analysis of Dolf van Coller's Die Bieliebalies (1993, read as a hedonist text. It has many points of similarity with what Bakhtin (1984 called grotesque realism, and with Nietzsche’s views as expounded in The birth of tragedy (1956. By comparing Van Caller's text to that of Bakhtin and Nietzsche, a counter-discourse to contemporary moral discourses such as feminism is explored. Van Coller’s use of laughter as a relativising mechanism is very liberating in the context where petty morality intervenes dogmatically in the field of literature and other spheres of life.

  4. Die ontwikkeling van menslike potensiaal in die Republiek van Suid ...

    African Journals Online (AJOL)

    Erna Kinsey

    Dit het dus ook te doen met lewenstandaard, aangesien lewenstandaard `n bepalende faktor is met betrekking tot die optimale ontwikkeling van menslike potensiaal. Ander minder materiële aspekte van menslike potensiaal het te doen met menslike vryheid, waaronder vryheid van spraak, beweging en keuse ter sake is.

  5. Fabrication and Testing of Pyramidal X- Band Standard Horn Antenna

    Directory of Open Access Journals (Sweden)

    Hasan F. Khazaal

    2017-11-01

    Full Text Available Standard horn antennas are an important device to evaluate many types of antennas, since they are used as a reference to any type of antennas within the microwave frequency bands. In this project the fabrication process and tests of standard horn antenna operating at X-band frequencies have been proposed. The fabricated antenna passed through multi stages of processing of its parts until assembling the final product. These stages are (milling, bending, fitting and welding. The assembled antenna subjected to two types of tests to evaluate its performance. The first one is the test by two port network analyzer to point out S & Z parameters, input resistance, and the voltage standing wave ratio of the horn, while the second test was done using un-echoic chamber to measure the gain, side lobes level and the half power beam width. The results of testing come nearly as a theoretical value of the most important of antenna parameters, like; gain, side lobe level, -3 dB beam width, return loss and voltage standing wave ratio "VSWR", input Impedance.

  6. Interpolant Tree Automata and their Application in Horn Clause Verification

    Directory of Open Access Journals (Sweden)

    Bishoksan Kafle

    2016-07-01

    Full Text Available This paper investigates the combination of abstract interpretation over the domain of convex polyhedra with interpolant tree automata, in an abstraction-refinement scheme for Horn clause verification. These techniques have been previously applied separately, but are combined in a new way in this paper. The role of an interpolant tree automaton is to provide a generalisation of a spurious counterexample during refinement, capturing a possibly infinite set of spurious counterexample traces. In our approach these traces are then eliminated using a transformation of the Horn clauses. We compare this approach with two other methods; one of them uses interpolant tree automata in an algorithm for trace abstraction and refinement, while the other uses abstract interpretation over the domain of convex polyhedra without the generalisation step. Evaluation of the results of experiments on a number of Horn clause verification problems indicates that the combination of interpolant tree automaton with abstract interpretation gives some increase in the power of the verification tool, while sometimes incurring a performance overhead.

  7. MR imaging of displaced meniscal tears of the knee. Importance of a 'disproportional posterior horn sign'

    International Nuclear Information System (INIS)

    Chen, H.C.; Hsu, C.Y.; Shih, T.T.F.; Huang, K.M.; Li, Y.W.

    2001-01-01

    Purpose: Meniscal tears associated with displaced fragments are clinically significant. We propose the 'disproportional posterior horn sign' as a supportive criterion to identify a posterocentrally displaced meniscal fragment on MR imaging studies. If the meniscal posterior horn in the central portion appears larger than that in the peripheral section, it is considered positive for 'disproportional posterior horn sign'. Material and Methods: MR images obtained in 42 patients with 43 lesions, confirmed to have displaced meniscal tears, were included in this study. The MR images were retrospectively evaluated for the presence of the 'disproportional posterior horn sign', as well as the other known signs. Results: The 'disproportional posterior horn sign' was seen in 9 (20.9%) of 43 lesions, including 1 lateral discoid meniscal tear, 5 lateral meniscal tears and 3 medial meniscal tears. Five of them also had other signs of a displaced meniscal fragment. However, the remaining 4 cases only exhibited the 'disproportional posterior horn sign'. For the other MR signs, the 'absent bow tie sign' was detected in 40 (93%) of 43 lesions, the 'flipped meniscus sign' in 27 (62.8%) of 43 lesions, the 'double posterior cruciate ligament sign' in 17 (39.5%) of 43 lesions and the 'notch fragment sign' in 22 (51.2%) of 43 lesions. Conclusion: The 'disproportional posterior horn sign' is helpful in demonstrating a posterocentrally displaced meniscal fragment, especially when other characteristic signs are unremarkable or absent

  8. Removing Unnecessary Variables from Horn Clause Verification Conditions

    Directory of Open Access Journals (Sweden)

    Emanuele De Angelis

    2016-07-01

    Full Text Available Verification conditions (VCs are logical formulas whose satisfiability guarantees program correctness. We consider VCs in the form of constrained Horn clauses (CHC which are automatically generated from the encoding of (an interpreter of the operational semantics of the programming language. VCs are derived through program specialization based on the unfold/fold transformation rules and, as it often happens when specializing interpreters, they contain unnecessary variables, that is, variables which are not required for the correctness proofs of the programs under verification. In this paper we adapt to the CHC setting some of the techniques that were developed for removing unnecessary variables from logic programs, and we show that, in some cases, the application of these techniques increases the effectiveness of Horn clause solvers when proving program correctness.

  9. Katalytisch verbranden van varkensmest

    NARCIS (Netherlands)

    Hendriks, J.

    1995-01-01

    Door het verbranden van mest kan het mestvolume worden verkleind. Binnenkort gaat op het Varkensproefbedrijf 'Zuid- en West-Nederland' in Sterksel onderzoek van start om de mogelijkheden van het katalytisch verbranden van varkensmest te bekijken.

  10. Witte vlekken in het bereik van NME? : raamwerk voor het meten van gebruik en de effecten van NME in het primair onderwijs

    NARCIS (Netherlands)

    Vreke, J.; Langers, F.; Berg, van den A.E.

    2011-01-01

    In het NME-beleid wordt het geven van NME ingezet als instrument om bij te dragen aan het reduceren van de achteruitgang, in omvang en kwaliteit, van natuur en milieu. Het bereik van NME moet aangeven in hoeverre NME de bevolking heeft bereikt en aan dit doel heeft bijgedragen. Het identificeren van

  11. Produktie van pigmenten

    NARCIS (Netherlands)

    Etman EJ; Duesmann HB; Eijssen PHM; LAE

    1994-01-01

    Dit rapport over de produktie van pigmenten is gepubliceerd binnen het Samenwerkingsproject Procesbeschrijvingen Industrie Nederland (SPIN). In het kader van dit project is informatie verzameld over industriele bedrijven of industriele processen ter ondersteuning van het overheidsbeleid op het

  12. Het effect van het bijvoeren van tarwe aan vleeskuikens op de slachtrendementen

    NARCIS (Netherlands)

    Middelkoop, van J.H.; Harn, van J.

    1994-01-01

    Tarwe bijvoeren aan vleeskuikens staat momenteel volop in de belangstelling. Redenen hiervoor zijn de lage prijs van de tarwe en het positieve effect dat tarwe kan hebben op de resultaten en gezondheid van de koppel. Door het bijvoeren van tarwe wordt de werking van de spiermaag en de ontwikkeling

  13. St. Teresa van Avila: sentrale figuur in die werk van Cussons en Van Wyk Louw

    Directory of Open Access Journals (Sweden)

    H. van Vuuren

    1989-05-01

    Full Text Available A central poem in Van Wyk Louw’s Tristia (1962, is “H. Teresa van Avila flap uit” (literally translated: “Saint Teresa of Avila talks too much/babbles uncontrollably”. This article illustrates how intertextual reading helped to clarify the poem. Teresa of Avila’s The way of perfection (a translation of the Spanish work El Camino de la Perfección, 1573 is the intertext of the Van Wyk Louw poem. In the last section of the article it is shown how the figure of St. Teresa of Avila is central not only to Van Wyk Louw’s Tristia (1962, but also to the oeuvre of Sheila Cussons, which underlines a strong intertextuality between these two Afrikaans oeuvres.

  14. The role of the Drosophila lateral horn in olfactory information processing and behavioral response.

    Science.gov (United States)

    Schultzhaus, Janna N; Saleem, Sehresh; Iftikhar, Hina; Carney, Ginger E

    2017-04-01

    Animals must rapidly and accurately process environmental information to produce the correct behavioral responses. Reactions to previously encountered as well as to novel but biologically important stimuli are equally important, and one understudied region in the insect brain plays a role in processing both types of stimuli. The lateral horn is a higher order processing center that mainly processes olfactory information and is linked via olfactory projection neurons to another higher order learning center, the mushroom body. This review focuses on the lateral horn of Drosophila where most functional studies have been performed. We discuss connectivity between the primary olfactory center, the antennal lobe, and the lateral horn and mushroom body. We also present evidence for the lateral horn playing roles in innate behavioral responses by encoding biological valence to novel odor cues and in learned responses to previously encountered odors by modulating neural activity within the mushroom body. We describe how these processes contribute to acceptance or avoidance of appropriate or inappropriate mates and food, as well as the identification of predators. The lateral horn is a sexually dimorphic and plastic region of the brain that modulates other regions of the brain to ensure that insects produce rapid and effective behavioral responses to both novel and learned stimuli, yet multiple gaps exist in our knowledge of this important center. We anticipate that future studies on olfactory processing, learning, and innate behavioral responses will include the lateral horn in their examinations, leading to a more comprehensive understanding of olfactory information relay and resulting behaviors. Copyright © 2016 Elsevier Ltd. All rights reserved.

  15. Absorption and distribution of 3H in horned cattle of different age

    International Nuclear Information System (INIS)

    Sirotkin, A.N.; Rusakov, N.V.

    1979-01-01

    Studied are the regularity of absorption of the tritium oxide in the gastrointestinal tract, the character of the distribution among the organs and of the radionuclide accumulation in horned cattle of different are. To determine the tritium absorption in the gastrointestinal tract the method of single oral and intravenous injection of radionuclide were used. The tritium concentration values in organs and tissues of horned cattle are presented. The results obtained show that tritium distribution in the organism occurs uniformly and does not depend on the way of intake. With the age the tritium concentration in dry residue increases and in the water phase decreases. The tritium absorption value calculated in the digestive tract of the horned cattle practically does not depend on the animals' age and constitutes 96.2% in average

  16. Gemelligraviditet i et horn af bicorn uterus

    DEFF Research Database (Denmark)

    Maagaard, Mathilde; Langhoff-Roos, Jens

    2009-01-01

    Bicornuate uterus is associated with early foetal loss and extremely preterm delivery. A patient with dichorionic twins in a single horn of a bicornuate uterus was admitted in week 24 + 6 with preterm labour. Long-term treatment with a combination of tocolytics, atosiban and diclofenac inhibited...

  17. The orthopaedic management of myelomeningocele | Horn | South ...

    African Journals Online (AJOL)

    The orthopaedic management of myelomeningocele. A Horn, S Dix-Peek, S Mears, EB Hoffman. Abstract. Despite improvement in antenatal care and screening, myelomeningocele remains the most common congenital birth defect, with a reported incidence of 1 - 2.5/1000 patients in the Western Cape, South Africa.

  18. Sir Hugh Cairns: The neurosurgeon who introduced crash helmets

    Directory of Open Access Journals (Sweden)

    Shahsivadhanan Sundaravadhanan

    2017-01-01

    Full Text Available Statistics prove that more Indians die in Road traffic related accidents than in wars. Prior to World War II, the death toll across the world used to be very high. It was at this juncture that a Military Neurosurgeon named Hugh Cairns introduced the compulsory wearing of crash helmets and brought about a reduction in mortality by more than 50%. Within a decade of introduction of crash helmets in Britain, the entire world followed suit. The results of his efforts are here for all of us to see. This innovative military neurosurgeon is credited as the one who introduced the concept of mobile neurosurgical units during world war and also the first proponent of usage of penicillin in war. His concepts in war surgery are still followed by militaries across the world. This article comes as a tribute to this great Neurosurgeon who helped in saving millions of lives.

  19. Die gebruik van ’n reologiese tegniek in die bepaling van die verhardingsreaksiekinetika van ’n reaktiewe poliësterpoeierdeklaag

    Directory of Open Access Journals (Sweden)

    O. C. Vorster

    2004-09-01

    Full Text Available

    Die studie van die verhardingsreaksiekinetika van deklae word bemoeilik deur die aanwesigheid van vlugtige stowwe, pigmente en bypigmente. In hierdie studie word die verhardingsreaksiekinetika van ’n karboksielgetermineerde poliëstertriglisediel-isosianuraat deur middel van parallelplaatspanningsreometrie bepaal. Jeltye is verkry en skaleringseksponente bepaal. ’n Nuwe metode vir die voorspelling van die verloop van die reaksie word voorgestel en vergelyk met resultate verkry deur middel van differensiël skanderingskalorimetrie.

    Abstract

    The use of a rheological technique in the determination of the curing kinetics of a reactive polyester powder coating

    In this article a study of the curing process of carboxyl terminated polyester-triglycidyl isocyanurate systems is reported. A comparison is made between the generally used Differential Scanning Calorimetric methods and rheokinetic methods, using a parallel plate oscillating stress rheometer. Gel times were determined and scaling exponents calculated. A new method for the estimation of the extent of reaction is presented and compared with results obtained by means of differential scanning calorimetry

  20. Handelsstromen van pluimveevlees

    NARCIS (Netherlands)

    Tacken, G.M.L.; Horne, van P.L.M.

    2006-01-01

    Dit onderzoek geeft inzicht in de goederenstromen van (rauw) pluimveevlees binnen envooral naar Nederland en de daarmee gepaard gaande zoönoserisico's. Het onderzoek biedtinput voor het nog op te zetten controlebeleid, waarmee handhaving van het beleidsvoornemenom het aanbieden van rauw

  1. Bekalking en toevoegen van nutriënten; evaluatie van de effecten op de vitaliteit van het bos; een veldonderzoek naar boomgroei

    NARCIS (Netherlands)

    Wolf, R.J.A.M.; Engels, M.E.; Knotters, M.; Schraven, R.; Boertjes, M.

    2006-01-01

    Dit rapport doet verslag van een deelonderzoek uit de Evaluatie van effectgerichte maatregelen in multifunctionele bossen 2004-2005 en is gericht op de effecten van de maatregelen bemes-ting en bekalking in bossen als overbruggingsmaatregel in het kader van het Overlevingsplan Bos en Natuur (OBN).

  2. Die berekening van vloeiing in ’n roterende annulus deur die metode van kunsmatige saamdrukbaarheid

    Directory of Open Access Journals (Sweden)

    H. Grobler

    1987-03-01

    Full Text Available Die vloeiing van ’n onsaamdrukbare, viskeuse vloeier word ondersoek aan die hand van die numeriese oplossing van die gediskretiseerde Navier-Stokes- en kontinuiteitsbeheervergelykings. In die besonder word vloeiing in ’n annulus bestaande uit twee koaksiale silinders wat elk ten opsigte van die ander kan roteer, en met ’n voorgeskrewe drukval oor die lengte van die silinder, beskou. Die oplossings word bereken deur die toepassing van Chorin se metode van kunsmatige saamdrukbaarheid, waarin die tydonafhanklike beheervergelykings getransformeer word na tydafhanklike hulpvergelykings deur die invoering van ’n kunsmatige toestandsvergelyking. Die oplossing van die hulpvergelykings konvergeer na ’n stasionêre oplossing, wat ooreenstem met die oplossing van die oorspronklike tydonafhanklike beheervergelykings. Die gedrag van die vloeier, wanneer ten voile ontwikkelde laminêre vloeiing bereik word, is met sukses bereken. ’n Eenvoudige model vir die bepaling van ontwikkeling van vloeiing langs die annulus vir enige gegewe invloeisnelheidsprofiel word voorgestel. Die berekende resultate stem ooreen met die resultate wat uit die fisika van die probleem verwag word.

  3. Het format van de stad. Een evaluatie van recente Nederlandse stadsgeschiedenissen

    Directory of Open Access Journals (Sweden)

    P. Kooij

    2002-01-01

    Full Text Available R. Kunst, Leeuwarden 750-2000. Hoofdstad van Friesland; A. van der Schoor, N. Schadee, Stad in aanwas. Geschiedenis van Rotterdam tot 1813; P. van de Laar, Stad van formaat. Geschiedenis van Rotterdam in de negentiende en twintigste eeuw; R.E. de Bruin, 'Een paradijs vol weelde'. Geschiedenis van de stad Utrecht.The shape of the city. An evaluation of recent historical studies on Dutch townsUrban history in the Netherlands started roundabout 1970. It was initially promoted by mainly economic and social historians who used concepts derived from geography which centred on town and country relations, urban networks, and migration. The spatial factor was considered to be a core feature, also inside the towns and cities. An alternative view, however, argued that a completely introspective urban history, focussing on one city, would result in more integration. This hypothesis has been proved in a number of recent, more or less integral urban histories, commissioned by several independent municipal authorities in individual cities. They show that a combination of internal and external elements offers the best results with regard to integration.

  4. Psigologiese benadering van pastorale arbeid

    Directory of Open Access Journals (Sweden)

    D. J. Strümpfer

    1969-03-01

    Full Text Available In die spreektaal van ons Afrikaanse kerke is ons lief om die bedienaar van die Woord aan te dui as „die predikant”, „die leraar” of „die dominee”. Miskien plaas ons met hierdie semantiese gebruik van terme wat lering en proklamering impliseer, ’n ongelukkige klem op die preekamp. Daarteenoor, het ons semanties miskien iets te leer van die Pinkstersektes wat die benaming „pastoor” verkies, of die Amerikaanse ge­ bruik van die term „the pastor”. Ons is wel lief om te praat van „ons herder en leraar”. Veelal word die herderlike, of pastorale, deel van die taak van die bedienaar van die Woord egter in sy eie gedagtes, asook in die gedagtes van sy gemeentelede, deur die leraarskap op die agtergrond gedwing. Al te dikwels word hy deur gemeentelede beskou as iemand wat op Sondag op die kansel gesien moet word en wat niks met die res van hul lewens te doen het nie. Herstel van die pastoraat sal deel moet wees van die proses om die ontkerstening van die hedendaagse lewe teen te gaan.

  5. The Many Faces of Compliance: The Supreme Court's Decision in "Horne v. Flores"

    Science.gov (United States)

    Thro, William E.

    2009-01-01

    At first blush, the Supreme Court's recent decision in "Horne v. Flores" (2009) appears to be about the proper standard for determining when to modify a previous judgment, a topic that would interest only civil procedure geeks. Yet, on closer examination, "Horne" is about giving local and state officials discretion to solve education problems and,…

  6. A Demographic Model to Evaluate Population Declines in the Endangered Streaked Horned Lark

    Directory of Open Access Journals (Sweden)

    Alaine F. Camfield

    2011-12-01

    Full Text Available The Streaked Horned Lark (Eremophila alpestris strigata is listed as endangered by the State of Washington, USA and by Canada under the Species at Risk Act and is also classified as a federal candidate for listing under the Endangered Species Act in the USA. A substantial portion of Streaked Horned Lark habitat has been lost or degraded, and range contraction has occurred in Oregon, Washington, and British Columbia. We estimate the vital rates (fecundity, adult and juvenile survival and population growth rate (λ for Streaked Horned Larks breeding in Washington, USA and conduct a Life-Stage Simulation Analysis (LSA to evaluate which vital rate has the greatest influence on λ. We simulated changes in the three vital rates to examine how much they would need to be adjusted either independently or in concert to achieve a stable Streaked Horned Lark population (λ = 1. We also evaluated which fecundity component (the number of fledglings per egg laid or renesting interval had the greatest impact on λ. The estimate of population growth suggests that Streaked Horned Larks in Washington are declining rapidly (λ = 0.62 ± 0.10 and that local breeding sites are not sustainable without immigration. The LSA results indicate that adult survival had the greatest influence on λ, followed by juvenile survival and fecundity. However, increases in vital rates led to λ = 1 only when adult survival was raised from 0.47 to 0.85, juvenile survival from 0.17 to 0.58, and fecundity from 0.91 to 3.09. Increases in breeding success and decreases in the renesting interval influenced λ similarly; however, λ did not reach 1 even when breeding success was raised to 100% or renesting intervals were reduced to 1 day. Only when all three vital rates were increased simultaneously did λ approach 1 without requiring highly unrealistic increases in each vital rate. We conclude that conservation activities need to target all or multiple vital rates to be successful. The

  7. Verlies van (thuis en haard. Het belang van verliesbegeleiding als onderdeel van de maatschappelijke begeleiding binnen het Vluchtelingenwerk, regio Utrecht

    Directory of Open Access Journals (Sweden)

    Birgit Hoogenberk

    2014-06-01

    Full Text Available Loss of home and house. The importance of loss counseling as a part of refugee social supportIn this article it is advocated that it is important that the implementation of loss counseling is part of social support for refugees, also called integrative eclectic working. Social support from VluchtelingenWerk, also known as Refugee Council, is about supporting the client in an effective manner with their personal problems which can hinder their integration. Because the target group of VluchtelingenWerk is a group of people whom have suffered many losses, attention should be brought to this subject. Unfortunately in current work methods there is no room for loss counseling, partly due to the lack of methodological tools. The losses associated with this group have a lot of impact on their daily lives and often are the source of functional limitations. By offering loss counseling and multi-method grief counseling, volunteers and employees are offered tools to make loss more negotiable. In this article different examples will be discussed and the new loss model of Stroebe and Schut will be explained. What will be clarified is the importance of the implementation of loss counseling, for the well-being and the integration process of clients as well as achieving organizational goals.Verlies van (thuis en haard. Het belang van verliesbegeleiding als onderdeel van de maatschappelijke begeleiding binnen het VluchtelingenWerk, regio UtrechtIn dit artikel wordt gepleit voor het implementeren van verliesbegeleiding als onderdeel van de maatschappelijke begeleiding, er is sprake van integratief eclectisch werken. De maatschappelijke begeleiding van het VluchtelingenWerk heeft als taak de cliënt zo goed mogelijk te begeleiden bij persoonlijke problemen die de inburgering kunnen belemmeren. Aangezien de doelgroep van het VluchtelingenWerk bestaat uit mensen die ontzettend veel verliezen hebben geleden dient hier aandacht voor te zijn. Helaas is in de huidige

  8. Outcomes of preterm neonates with frontal horn cysts: a retrospective study.

    Science.gov (United States)

    Trawber, Rory; Rao, Shripada; Srinivasjois, Ravisha; Thonell, Sven; Nagarajan, Lakshmi; French, Noel; Jacoby, Peter; McMichael, Judy

    2010-11-01

    Isolated paraventricular frontal horn cysts are sometimes encountered on cranial ultrasound examinations of preterm neonates. The etiology and clinical significance of these lesions are unclear. The authors aimed to identify antenatal/intrapartum risk factors associated with the occurrence of these cysts and to assess developmental outcomes of preterm neonates with isolated frontal horn cysts. A retrospective cohort study with matched control design was used. A total of 28 cases were matched for gestation with 56 controls. No antenatal/intrapartum factors were associated with these cysts. At corrected age of 1 year, there was no difference in the mean general quotient between cases and controls (97.75 ± 17.28 vs 94.94 ± 9.86; P = .410). In all, 1 case and no controls had a diagnosis of cerebral palsy and 1 case and 3 controls had general quotients less than 80. The authors conclude that isolated paraventricular frontal horn cysts are benign, with no effect on neurodevelopment.

  9. Economische gevolgen van ontwapening

    NARCIS (Netherlands)

    Duisenberg, Willem Frederik

    1965-01-01

    Samenvatting van de gehele studie 4.1. Economie en ontwapening Ontwapening betekent in deze studie de algehele, snelle afschaffing van alle militaire maatregelen in aIle landen. Het negeren van de politieke waarschijnlijkheden die veeleer wijzen op een zeer geleidelijke afschaffing van slechts

  10. Neurotoxische effecten van broomcyclohexaan

    NARCIS (Netherlands)

    Velsen; F.L.van; Danse; L.H.J.C.; Vries; L.J.de; Liefde; A.de

    1984-01-01

    Kortdurende toediening (4-7 dagen) van broomcyclohexaan (BCH) veroorzaakt in een dosering van 1200 mg/kg lichaamsgewicht (per maagsonde) necrose van gegranuleerde cellen in de korrellaag van de kleine hersenen. In deze doseringen zijn ook gedragsafwijkingen waargenomen d.m.v. een objectieve

  11. Evaluatie van het gebruik van de iPad in het klaslokaal : Een onderzoek naar het iPadgebruik onder brugklasleerlingen van een Leeuwarder Lyceum

    NARCIS (Netherlands)

    Klaas Jan Huizing; Chantal Philipsen; Luka Linster

    2013-01-01

    In november 2012 kregen alle brugklasleerlingen van het Leeuwarder Lyceum een iPad uitgereikt. Dit nieuwe ‘device’ is de aanjager van onderwijsvernieuwingen op het gebied van digitalisering van lesmateriaal. Sowijs volgde de implementatie van de iPad en vroeg zich af: hoe is het iPadgebruik na een

  12. Leven en werken van Geert Reinders. De grondlegger van de immunologie.

    NARCIS (Netherlands)

    Bruins, Luitje Hendrik

    1951-01-01

    De levensgeschiedenis van Geert Reinders is het relaas van de vele prestaties, waartoe deze man ondanks een zeer gebrekkige schoolopleiding in staat was. Hij was werkzaam als molenaar, boer, koopman, redger, gemeentesecretaris, secretaris en ontvanger van een groot zijlvest, veeartsenijdeskundige;

  13. Die rol van die blanke werker in die motivering van die swart werker

    Directory of Open Access Journals (Sweden)

    G. J. Oosthuizen

    1980-11-01

    Opsomming Die motivering van die Swart werker kan nie in die huidige situasie in isolasie bestudeer word nie, omdat die Blanke werker steeds in die bestuursposisie is en daarom die motivering van die Swart werker kan beïnvloed. Hierdie ondersoek was daarop gerig om die rol van die Blanke werker in die motivering van die Swart werker nader te ondersoek. Die houding en die leierskapsbenadering van die Blanke werker teenoor die Swart werker is gemeet, asook die behoeftes wat volgens die Blanke werker by die Swart werker bestaan, bevredig is, of nie bestaan nie. Die behoeftes van Swart werkers, soos deur hulleself gesien, is ook ondersoek. Ten opsigte van sekere aspekte is beduidende verskille gevind.

  14. De eeuw van de Beeldenstorm

    Directory of Open Access Journals (Sweden)

    F. Postma

    1988-01-01

    Full Text Available P. van Boheemen, N.P.J. van der Lof, E. van Meurs, Het boek in Nederland in de 16e eeuw S. Groenveld, Ketters en papen onder Filips II. Het godsdienstig leven in de tweede helft van de zestiende eeuw R. Kistemaker, M. Jonker, De smaak van de elite. Amsterdam in de eeuw van de Beeldenstorm W.Th. Kloek, Kunst voor de Beeldenstorm. Noord-Nederlandse kunst ca 1525-1580, [I], Inleiding, [II, Catalogus] J.R. ter Molen, A.P.E. Ruempol, A.G.A. Dongen, Huisraad van een molenaarsweduwe. Gebruiksvoorwerpen uit een 16e eeuwse boedelinventaris M. de Roever, B. Bakker, Woelige tijden. Amsterdam in de eeuw van de Beeldenstorm I.M. Veldman, Leerrijke reeksen van Maarten van Heemskerck

  15. Benaderingen van over

    NARCIS (Netherlands)

    Boer, M.G. de

    2010-01-01

    SAMENVATTING In dit hoofdstuk wordt de relatie tussen de betekenissen van het Nederlandse voorzetsel over en een aantal corpora bestudeerd. Het hoofdstuk begint met een analyse van de voorbeelden uit Uit het leven van Dik Trom (1891); daarna wordt de woordenboekinformatie behandeld en vergeleken

  16. Die effek van intelligensie op die verhouding tussen lokus van kontrole en taakkompleksiteit

    Directory of Open Access Journals (Sweden)

    F. G. de Kock

    1995-06-01

    Full Text Available The effect of intelligence on the relationship between locus of control and task complexity. The aim of the study was to establish the effects of intelligence on the relationship between locus of control and task complexity. These constructs were selected by virtue of their importance in the literature, as well as the lack of empirical research regarding the assumed relationship which exists between them. The Human Sciences Research Council's (HSRC General Scholastic Aptitude Test (ASAT was used for measuring intelligence, Duttweiler's Internal Control Index (ICI was used for determining locus of control and the Raven's Advanced Progressive Matrices (APM was used as a criterion for coping with task complexity. These instruments were administered to 292 subjects to determine whether the relationship between locus of control and task complexity was effected when the effect of intelligence was controlled. The results indicated a significant relationship between locus of control and task complexity, however the relationship was no longer significant after the effect of intelligence was controlled. Opsomming Die doel van die studie was om die effek van intelligensie op die verhouding tussen lokus van kontrole en taak-kompleksiteit te ondersoek. Hierdie konstrukte is gekies na aanleiding van hulle belangrikheid in die literatuur asook die leemte in empiric se navorsing rakende die veronderstelde verband wat tussen hulle bestaan. Die Algemene Skolastiese Aanlegtoets (ASAT van die Raad vir Geesteswetenskaplike Navorsing (RGN is gebruik vir die meting van intelligensie, die Internal Control Index (ICI van Duttweiler is gebruik vir die meting van lokus van kontrole en die Advanced Progressive Matrices (APM van Raven is gebruik as maatstaf vir die bantering van taakkompleksiteit. Die genoemde meetinstrumente is op 292 proefpersone toegepas om te bepaal of die verband tussen lokus van kontrole en taakkompleksiteit geaffekteer word wanneer daar vir die effek

  17. Ziekten van het ruggenmerg

    NARCIS (Netherlands)

    Groen, Robertus; Kuks, Joannes; Snoek, Jozef; Kuks, Jan B.M.; Snoek, Jos W.

    2016-01-01

    Er zijn vele oorzaken voor een myelopathie. Beschadiging van het myelum kan compleet zijn (zoals in het geval van een complete dwarslaesie), maar is vaker incompleet (zoals bij een incomplete traumatische dwarslaesie en de meeste vormen van myelopathie op basis van niet-traumatische oorzaken). Er

  18. Satellite tracking of harbour seals on Horns Reef - Use of the Horns Reef wind farm area and the North Sea

    International Nuclear Information System (INIS)

    Tougaard, J.; Tougaard, S.; Jensen, Thyge; Ebbesen, I.; Teilmann, J.

    2003-03-01

    Ten harbour seals (Phoca vitulina) caught on the Danish Wadden Sea island Roemoe were equipped with satellite linked time depth recorders. The animals were caught on three separate occasions (Jan. 4th, Feb. 18th and May 6th, 2002). The transmitters worked between 49 and 100 days, relaying positional and dive information back via the ARGOS satellite service until beginning of July. Background for the studies is the construction of the Worlds largest off shore wind farm on Horns Reef. Based on previous studies using VHF-transmitters, it was expected that the seals would spend considerable time on Horns Reef. The VHF-telemetry studies showed that the preferred direction for seals leaving the Danish Wadden Sea is NW from Graedyb tidal area outside Esbjerg, the direction directly towards the wind farm area. The previously used VHF-transmitters had a limited detection range and it was decided to equip a number of seals from the same area as before with satellite transmitters. This allows for positioning of the seals in the entire North Sea as well as providing dive summary information, as a transmitter with a depth transducer was chosen for the study. Positional information revealed that animals move about more extensively than previously believed. Substantial variation between animals was observed and each seal seemed to have adopted its own foraging strategy. Some animals travelled to the centre of the North Sea on foraging trips and spent considerable time close to the bottom at 30-70 meters depth. Other seals remained in the German Bight and yet others spent considerable time on and around Horns Reef. The area of Horns reef wind farm constitutes a negligible fraction of the total area visited by the tagged seals. The reef as a whole however, appears to be important to the seals both for foraging and as transit area to other feeding grounds further off shore. The resolution in positional information is not sufficiently high to allow for a detailed study of the effects

  19. Satellite tracking of harbour seals on Horns Reef - Use of the Horns Reef wind farm area and the North Sea

    Energy Technology Data Exchange (ETDEWEB)

    Tougaard, J.; Tougaard, S.; Jensen, Thyge [Fisheries and Maritime Museum Esbjerg (Denmark); Ebbesen, I. [Univ. of Sourthern Denmark, Inst. of Biology, Odense (Denmark); Teilmann, J. [NationL Environmental Res. Inst., Roskidle (Denmark)

    2003-03-15

    Ten harbour seals (Phoca vitulina) caught on the Danish Wadden Sea island Roemoe were equipped with satellite linked time depth recorders. The animals were caught on three separate occasions (Jan. 4th, Feb. 18th and May 6th, 2002). The transmitters worked between 49 and 100 days, relaying positional and dive information back via the ARGOS satellite service until beginning of July. Background for the studies is the construction of the Worlds largest off shore wind farm on Horns Reef. Based on previous studies using VHF-transmitters, it was expected that the seals would spend considerable time on Horns Reef. The VHF-telemetry studies showed that the preferred direction for seals leaving the Danish Wadden Sea is NW from Graedyb tidal area outside Esbjerg, the direction directly towards the wind farm area. The previously used VHF-transmitters had a limited detection range and it was decided to equip a number of seals from the same area as before with satellite transmitters. This allows for positioning of the seals in the entire North Sea as well as providing dive summary information, as a transmitter with a depth transducer was chosen for the study. Positional information revealed that animals move about more extensively than previously believed. Substantial variation between animals was observed and each seal seemed to have adopted its own foraging strategy. Some animals travelled to the centre of the North Sea on foraging trips and spent considerable time close to the bottom at 30-70 meters depth. Other seals remained in the German Bight and yet others spent considerable time on and around Horns Reef. The area of Horns reef wind farm constitutes a negligible fraction of the total area visited by the tagged seals. The reef as a whole however, appears to be important to the seals both for foraging and as transit area to other feeding grounds further off shore. The resolution in positional information is not sufficiently high to allow for a detailed study of the effects

  20. A new horned dinosaur reveals convergent evolution in cranial ornamentation in Ceratopsidae.

    Science.gov (United States)

    Brown, Caleb M; Henderson, Donald M

    2015-06-15

    Ceratopsid (horned) dinosaurs are an iconic group of large-bodied, quadrupedal, herbivorous dinosaurs that evolved in the Late Cretaceous and were largely restricted to western North America [1-5]. Ceratopsids are easily recognized by their cranial ornamentation in the form of nasal and postorbital horns and frill (capped by epiossifications); these structures show high morphological disparity and also represent the largest cranial display structures known to have evolved [2, 4]. Despite their restricted occurrence in time and space, this group has one of the best fossil records within Dinosauria, showing a rapid diversification in horn and frill morphology [1]. Here a new genus and species of chasmosaurine ceratopsid is described based on a nearly complete and three-dimensionally preserved cranium recovered from the uppermost St. Mary River Formation (Maastrichtian) of southwestern Alberta. Regaliceratops peterhewsi gen. et sp. nov. exhibits many unique characters of the frill and is characterized by a large nasal horncore, small postorbital horncores, and massive parietal epiossifications. Cranial morphology, particularly the epiossifications, suggests close affinity with the late Campanian/early Maastrichian taxon Anchiceratops, as well as with the late Maastrichtian taxon Triceratops. A median epiparietal necessitates a reassessment of epiossification homology and results in a more resolved phylogeny. Most surprisingly, Regaliceratops exhibits a suite of cranial ornamentations that are superficially similar to Campanian centrosaurines, indicating both exploration of novel display morphospace in Chasmosaurinae, especially Maastrichtian forms, and convergent evolution in horn morphology with the recently extinct Centrosaurinae. This marks the first time that evolutionary convergence in horn-like display structures has been demonstrated between dinosaur clades, similar to those seen in fossil and extant mammals [6]. Copyright © 2015 Elsevier Ltd. All rights

  1. Method of segmenting inferior horns of lateral ventricles using active contour models

    International Nuclear Information System (INIS)

    Hattori, Masumi; Koyama, Shuji; Kodera, Yoshie

    2007-01-01

    Recent research has suggested that the measurement of regional atrophy in the structure of the medial temporal lobe is a promising way to discriminate Alzheimer-type dementia patients from healthy control subjects. There are some reports that the inferior horns of the lateral ventricles are expanded by atrophying the structure of the medial temporal lobe. We developed a technique to automatically detect the region of the inferior horns of the lateral ventricles by gray-level thresholding and morphological processing. However, there were some incorrect regions in this method. Accordingly, we proposed a technique for which active contour models (ACM) were used. Our ACM incorporates the improved edge-based image and the external constraint to improve convergence and to reduce its dependence on initial estimation. In this study, we present the details of an algorithm that traces the contours of the inferior horns of the lateral ventricles and its performance relative to manual methods. The average degree of correspondence between the extract region and manual trace was measured in 30 inferior horns of 15 subjects. The average degree of correspondence of the proposed method was about 4% higher than that of the conventional method. These results suggest that the proposed method is more accurate than the conventional method. (author)

  2. Analyse van de vervormingen van de Fusee Ceramique daken van de productiehallen in Dongen : Rapport met bevindingen betreffende de vervormingen van de Fuseedaken van de productiehallen van Coca Cola in Dongen

    NARCIS (Netherlands)

    Kamerling, M.W.

    2014-01-01

    In 1962 werden in Dongen bedrijfshallen gemaakt met cilindervormige overkappingen waarin ter besparing van gewicht en cement ceramische elementen, de Fusée's Ceramique, werden gelegd. De schalen worden ondersteund met balken 450*750 mm2 en kolommen 450 * 450 mm2 op een raster van 5,6 m * 20,4 m. Het

  3. Effectiviteit van facultatief aansluitonderwijs wiskunde in de transitie van voortgezet naar hoger onderwijs

    NARCIS (Netherlands)

    Tempelaar, D.T.; Rienties, B.; Kaper, W.; Giesbers, B.; Gastel, van L.J.; Vrie, van de E.M.; Kooij, van der H.; Cuypers, H.

    2011-01-01

    Samenvatting Wat is het effect van vrijwillig aansluitonderwijs, zoals het remediërend wiskundeonderwijs dat op veel instellingen voor hoger onderwijs wordt gegeven ter verbetering van de doorstroom? Bepaling van de doelmatigheid van dit onderwijs wordt bemoeilijkt door selectie-effecten die kunnen

  4. De opdeling van Centraal-Afrika, 1875-1885 : een analyse van twee territoriale conflicten

    NARCIS (Netherlands)

    Foeken, D.W.J.

    1992-01-01

    Deze studie beschrijft een politiek-historisch proces en vormt een bijdrage aan de systematische studie van internationale territoriale conflicten vanuit het gezichtspunt van de politieke geografie. Tevens worden aspecten van het Europese imperialisme van de late 19e eeuw nader verklaard. De

  5. De economische kracht van de baggerindustrie: clusterstudie met behulp van de 'methode Porter'

    NARCIS (Netherlands)

    Jacobs, D.; Limpens, I.; Kuijper, J.; Ven, B. van de

    1993-01-01

    Deze clusterstudie van de Nederlands-Belgische baggerindustrie is uitgevoerd in opdracht van IHC Holland, de belangrijkste bouwer van baggerschepen ter wereld, en de Vereniging Centrale Baggerbedrijf, de branche-organisatie van aannemers in de bagger. De bedoeling is een beter inzicht te krijgen in

  6. Maatskaplike aspekte van geriatriese sorg

    Directory of Open Access Journals (Sweden)

    D. Louw

    1979-09-01

    Full Text Available Dit is maar enkele dekades gelede dat Westerse gemeenskappe bewus geword het van die besondere behoeftes van die relatief groot en nog steeds groeiende persentasie bejaardes in hulle midde. Nie alleen het die liggaamlike behoeftes van liggaamlike afgetakelde bejaardes die aandag getrek nie maar die gemeenskappe het ook bewus geword van die maatskaplike behoeftes van ouerwordendes in ’n tydperk wat gekenmerk is deur die dramatiese veranderings in die lewenswyses van ons mense — veranderinge wat in baie opsigte ’n negatiewe invloed gehad het op die lewensomstandighede van ’n groot groep bejaardes. Welsynsbeplanners het besef dat hulle in hulle beplanning spesiale voorsiening moes maak vir die lewensbehoeftes van hierdie groep in die gemeenskap en dat hulle in die verband ’n groot agterstand het om in te haal. Geneeshere wat belang begin stel het in die gesondheidsbehoeftes van bejaardes het ook besef dat gevestigde geneeskundige praktyke geensins voldoen aan die spesifieke behoeftes van ’n groot groep bejaardes nie en dat groot aanpassings gemaak moes word met betrekking tot hulle benaderings en metodes van behandeling van hierdie pasiente.

  7. Betekenis van Legionella-soorten voor preventiebeleid van leidingwaterinstallaties

    NARCIS (Netherlands)

    Versteegh JFM; Brandsema PS; Lodder WJ; de Roda Husman AM; Schalk JAC; van der Aa NGFM; IMG; LZO; EPI

    2009-01-01

    Het RIVM adviseert om de huidige normstelling voor het preventiebeleid van Legionella te handhaven en niet uitsluitend op Legionella pneumophila te richten. Als andere Legionella-soorten worden aangetroffen kan er ook groei van Legionella pneumophila optreden. Als er dan geen maatregelen worden

  8. Plausibiliteitsdocument STONE 2.0 (Globale verkenning van de plausibiliteit van het model STONE versie 2.0 voor de modellering van uit- en afspoeling van N en P).

    NARCIS (Netherlands)

    Overbeek, G.B.J.; Beusen, A.H.W.; Boers, P.C.M.; Born, van den G.J.; Groenendijk, P.; Grinsven, van J.J.M.; Kroon, T.; Meer, van der H.G.; Oosterom, H.P.; Puijenbroek, van P.J.T.M.; Roelsma, J.; Roest, C.W.J.; Rötter, R.; Tiktak, A.; Tol, van S.

    2002-01-01

    STONE is ontwikkeld om landsdekkend voor Nederland de effecten van bemesting en mestbeleid op de emissies van stikstof en fosfaat uit de landbouw naar grond- en oppervlaktewater te verkennen. De nadruk in de hier gerapporteerde plausibiliteitsstudie ligt op vaststelling van de geloofwaardigheid, het

  9. Plausibiliteitsdocument STONE 2.0.Globale verkenning van de plausibiliteit van het model STONE versie 2.0 voor de modellering van uit -en afspoeling van N en P

    NARCIS (Netherlands)

    Overbeek GBJ; Beusen AHW; Boers PCM; Born GJ van den; Groenendijk P; Grinsven JJM; Kroon T; Meer HG van der; Oosterom HP; Puijenbroek PJTM van; Roelsma J; Roest CJW; Rotter R; Tiktak A; Tol S van; LBG; CIM; LAE; LWD

    2002-01-01

    STONE is ontwikkeld om landsdekkend voor Nederland de effecten van bemesting en mestbeleid op de emissies van stikstof en fosfaat uit de landbouw naar grond- en oppervlaktewater te verkennen. De nadruk in de hier gerapporteerde plausibiliteitsstudie ligt op vaststelling van de geloofwaardigheid,

  10. Geochemische bodematlas van Nederland

    NARCIS (Netherlands)

    Mol, G.; Spijker, J.H.; Gaans, van P.; Römkens, P.F.A.M.

    2012-01-01

    Deze Geochemische bodematlas geeft een uniek overzicht van de chemische samenstelling van de bodem in Nederland. Bodemmonsters van meer dan 350 locaties zijn geanalyseerd op meer dan 40 chemische elementen. De atlas geeft niet alleen informatie over de door de mens beïnvloede toplaag van de bodem,

  11. Occupational Cow Horn Eye Injuries in Ibadan, Nigeria

    African Journals Online (AJOL)

    Cow horn injury is an uncommon cause of penetrating eye injury with grave ... cattle‑related jobs, and they all had unilateral open‑globe injuries with corneoscleral lacerations. ... likely to be because men are at increased risk as cattle rearers.

  12. Evaluatie van bemesting en bekalking in bossen en de ontwikkeling van onbehandelde bossen

    NARCIS (Netherlands)

    Olsthoorn, A.F.M.; Berg, van den C.A.; Gruijter, de J.J.

    2006-01-01

    Dit rapport doet verslag van een deelonderzoek uit de Evaluatie van effectgerichte maatregelen in multifunctionele bossen 2004-2005 en is gericht op de effecten van de maatregelen bemesting en bekalking in bossen als overbruggingsmaatregel in het kader van het Overlevingsplan Bos en Natuur (OBN). Na

  13. Die meting van die gelyktydige hantering van teenstrydige en dubbelsinnige inligting as kritieke eienskap in 'n verskeidenheid van Beroepe

    Directory of Open Access Journals (Sweden)

    W. S. de Villiers

    1983-11-01

    Min informasie bestaan omtrent die hantering van teenstrydige en dubbelsinnige inligting as kritieke vermoë in vele werksituasies. Met hierdie ondersoek is daar gepoog om die konstruk te omlyn en aan 'n empiriese verifiering te onderwerp. ‘n Meetinstrument (posmandjie is ontwikkel om die hantering van teenstrydige en dubbelsinnige inligting te meet en is saam met ander meetinstrumente ter omlyning van die genoemde konstruk aan twee groepe proefpersone geadministreer. Daar is vasgestel dat hierdie vermoë verband hou met intellektuele vermoëns en sensories kognitiewe oordeel en nie met sekere persoonlikheids- en ander determinante van mens like gedrag nie en dat dit na alle waarskynlikheid dui op die bestaan van 'n afsonderlike werksvermoë of konstruk.

  14. Een traditie herneemt zich - Over het belang van Aldo van Eyck

    NARCIS (Netherlands)

    Colenbrander, B.J.F.

    1997-01-01

    Zo'n zeven, acht jaar geleden veranderde Aldo van Eyck, overigens bij leven en welzijn, van een lijfelijk deelnemer aan de architectuurdiscussie in een historische figuur. Hij werd verguisd en gelauwerd. Met de Rekenkamer in Den Haag echter doet Van Eyck lang vergeten manifesten herleven. Gloort er

  15. Het belang van beschermende factoren in de risicotaxatie van tbs-gestelden

    NARCIS (Netherlands)

    Nagtegaal, M.H.; Schönberger, H.J.M.

    2013-01-01

    In dit onderzoek staan de volgende vragen centraal: Is het meenemen van beschermende factoren van toegevoegde waarde voor de risicotaxatie zoals deze plaatsvindt in de tbs-praktijk? Zo ja, op welke manier? Hierbij wordt onder ander het belang van beschermende factoren voor de behandelpraktijk en de

  16. Een geschiedenis van vleesloos eten

    NARCIS (Netherlands)

    Dagevos, H.

    2009-01-01

    Recensie van de populaire editie van het proefschrift van Dirk-Jan Verdonk: Het dierloze gerecht: een vegetarische geschiedenis in Nederland. Hierin wordt de geschiedenis van het vegetarisme vanaf de tweede helft van de 19e eeuw tot nu beschreven

  17. Een nieuwe ondersoort van Zosterops montana afkomstig van de Goenoeng Papandajan (West Java)

    NARCIS (Netherlands)

    Hoogerwerf, A.; Boer, de L.E.

    1947-01-01

    In zijn laatste revisie van het genus Zosterops (Journ. für Orn., vol. 87, 1939, p. 156-164) geeft Stresemann o.a. een schematische voorstelling van de horizontale en verticale verspreiding binnen deze Archipel van de vier voornaamste groepen van dit geslacht: montana, atricapilla, palpebrosa en

  18. Naar meer bruto nationaal sportgeluk? Verkenning van de rol van sport in geluk

    NARCIS (Netherlands)

    Dool, R. van den; Breedveld, K.

    2017-01-01

    Op verzoek van NOC*NSF heeft het Mulier Instituut, met financiële steun van het ministerie van VWS, een verkenning uitgevoerd naar de relatie tussen sport en geluk. NOC*NSF en de Nederlandse sportbonden streven, als onderdeel van het 'transitietraject', ernaar om duidelijker voor het

  19. Gebruik van TaqMan PCR voor het kwantificeren van Fusarium spp. en Microdochium nivale in gewassen en gewasresten van tarwe

    NARCIS (Netherlands)

    Köhl, J.; Haas, de B.H.; Kastelein, P.; Burgers, S.L.G.E.; Waalwijk, C.

    2005-01-01

    Samenvattingen van 5 presentaties: 'Heterogenity of Dutch Fusarium oxysporum strains isolated as forma specialis radicis-lycopersici';'Een proteomics benadering om eiwitten te identificeren die door Fusarium oxysporum worden uitgescheiden in xyleemsap van tomaat'; 'Ontwikkeling en implementatie van

  20. Nonlinear effects contributing to hand-stopping tones in a horn.

    Science.gov (United States)

    Ebihara, Takayasu; Yoshikawa, Shigeru

    2013-05-01

    Hand stopping is a technique for playing the French horn while closing the bell relatively tightly using the right hand. The resulting timbre is called "penetrating" and "metallic." The effect of hand stopping on the horn input impedance has been studied, but the tone quality has hardly ever been considered. In the present paper, the dominant physical cause of the stopped-tone quality is discussed in detail. Numerical calculations of the transmission function of the stopped-horn model and the measurements of both sound pressure and wall vibration in hand stopping are carried out. They strongly suggest that the metallicness of the stopped tone is characterized by the generation of higher harmonics extending over 10 kHz due to the rapidly corrugating waveform and that the associated wall vibration on the bell may be responsible for this higher harmonic generation. However, excitation experiments and immobilization experiments performed to elucidate the relationship between sound radiation and wall vibration deny their correlation. Instead, the measurement result of the mouthpiece pressure in hand stopping suggests that minute wave corrugations peculiar to the metallic stopped tones are probably formed by nonlinear sound propagation along the bore.

  1. Richtlijnen voor selectie en weergave van residugehaltes van bestrijdingsmiddelen

    NARCIS (Netherlands)

    van den Velde-Koerts T; van Hoeven-Arentzen PH; Ossendorp BC; CSR

    2002-01-01

    Residubeoordelingen van bestrijdingsmiddelen worden uitgevoerd om wettelijke residulimieten (MRLs = maximum residue limits) vast te leggen. MRLs worden afgeleid uit de resultaten van die residuproeven met bestrijdingsmiddelen die volgens kritisch "Good Agricultural Practice" zijn

  2. Toepassing van optische sensoren (I). Meting van bellengrootteverdeling in luchtige levensmiddelen.

    NARCIS (Netherlands)

    Bisperink, C.G.J.; Akkerman, J.C.; Prins, A.

    1991-01-01

    Beschrijving van een methode, ontwikkeld op het laboratorium voor Zuivel en Levensmiddelennatuurkunde van de LU Wageningen in nauwe samenwerking met de TU Delft, waarmee goed en snel de verdeling van de gasfase in de vloeibare fase in de tijd en op verschillende plaatsen in een monster kan worden

  3. van der Waals

    Indian Academy of Sciences (India)

    University education was beyond reach for van der Waals as he had to work for earning his daily bread ... languages, which was a prerequisite for entering a University those days. van der Waals worked as a school ... take academic examinations at the University yet, van der Waals continued studying at Leiden. University ...

  4. Giant Cutaneous Horn Overlying A Verruca at an Uncommon Site: Medical Marvel vs Superstitious Dilemma.

    Science.gov (United States)

    Sanjeeva, Karthik Kathladka; Ali, Puttur Sainuddin Mohammed Ameer; Pinto, Malcolm; Rao, Srikar; Rai, Arvind Shivram

    2015-04-01

    Cutaneous horn has been a matter of discussion to mankind since time immemorial and a subject of fascination for the layman. There have been instances where certain groups saw it with angst and disgust, with a person having a large cutaneous horn on an exposed area getting a dismal look. We present a case of a 64-year-old man with a giant cutaneous horn over his left gluteal region. Cutaneous horns more commonly present in the sun-exposed areas. In our case it has presented in an uncommon site. The patient had delayed and denied medical treatment due to his superstitious beliefs, after having sought advice from faith healers leading to progression of the disease. This case has been presented for its giant size (rare variety), its location being over the gluteal region (photo-protected site) and its benign histopathology suggestive of wart in spite of the giant size.

  5. Het beslissingsproces van de huisarts bij de keuze van een geneesmiddel

    NARCIS (Netherlands)

    B. Wierenga (Berend); S.J.T. Jong; A. Mantel

    1989-01-01

    textabstractHet beslissingsproces van de huisarts bij de keuze van een geneesmiddel, zoals het uit dit empirisch onderzoek naar voren kwam, kan als volgt worden getypeerd. In het merendeel van de gevallen (ca. 90%) beperkt de arts zich tot de informatie die hij al in zijn geheugen heeft. Vaak wordt

  6. New type of chimera structures in a ring of bistable FitzHugh-Nagumo oscillators with nonlocal interaction

    Science.gov (United States)

    Shepelev, I. A.; Vadivasova, T. E.; Bukh, A. V.; Strelkova, G. I.; Anishchenko, V. S.

    2017-04-01

    We study the spatiotemporal dynamics of a ring of nonlocally coupled FitzHugh-Nagumo oscillators in the bistable regime. A new type of chimera patterns has been found in the noise-free network and when isolated elements do not oscillate. The region of existence of these structures has been explored when the coupling range and the coupling strength between the network elements are varied.

  7. Vaststellen reproduceerbaarheid van de nachtactiviteit van de Balb/c/rivm muis over de afgelopen vijf jaar

    NARCIS (Netherlands)

    Steen BVL; Jansen van ' t Land C; CDL

    1999-01-01

    Om de inschatting van de mate van ongerief onafhankelijk te maken van ervaring en interpretatie van de persoon die de observatie uitvoert, maken wij in onze studies gebruik van een volledig geautomatiseerde opstelling. Met deze geautomatiseerde opstelling kan de bewegingsactiviteit van

  8. Bereiding van gevriesdroogd cholesterolcalibratie en -controleserum ten behoeve van de Stichting Kwaliteitsbewaking Chemische Analyse ten behoeve van Epidemiologisch Onderzoek (KCA)

    NARCIS (Netherlands)

    Dreumel; H.J.van; Wikkeling; R.H.; Steentjes; G.M.; Buitenhuis; S.G.; Koedam; J.C.

    1986-01-01

    In het kader van de samenwerking tussen het RIVM en de Stichting KCA (Kwaliteitsbewaking Chemische Analyse t.b.v. Epidemiologisch Onderzoek) werden drie partijen cholesterolserum bereid. Uitgegaan werd van menselijk serum (Centraal Laboratorium van de Bloedtransfusiedienst). Door uit een deel

  9. De auteursrechtelijke groeipijnen van Google

    NARCIS (Netherlands)

    Hugenholtz, P.B.

    2011-01-01

    Het succesverhaal van Google behoort tot de canon van de geschiedenis van onze informatiemaatschappij. In 1998 begonnen in een studentenkamer op de campus van Stanford University, groeide Google in enkele jaren uit tot het orakel van het internet. Zo werd ‘googelen’ de gebruikelijke term voor zoeken

  10. Hugh Ramsay’s Self-Portrait: Reflections on a Spanish Master Painter

    Directory of Open Access Journals (Sweden)

    Jenny Beatriz Quijano Martínez

    2015-01-01

    Full Text Available The interest in European masters from the past was a phenomenon related to the development of the artistic careers of many artists in Australia at the end of the nineteenth and beginning of the twentieth century. More than that, the copying or emulation of great works of art was seen to be a necessary part of an artist’s training1. This paper looks at Hugh Ramsay and his fascination with the painting Las Meninas (1656 by Velázquez as part of a larger study into understanding how the Spanish in uence was re ected in Australian art. Ramsay introduced elements from Las Meninas into his Portrait of the artist standing before easel, which took him to personify the role of the painter as Velázquez.

  11. Beoordeling van de gevoeligheid van soorten en habitattypes van Europees belang bij verstoringingrepen

    OpenAIRE

    Wouters, Jan

    2011-01-01

    Om ecologische schade te vermijden, moeten activiteiten of plannen met mogelijk schadelijke effecten doorgelicht worden. Het instrument ‘effectenindicator’ licht activiteiten in algemene termen door op mogelijke natuureffecten. De in dit advies weergegeven gevoeligheidstabellen geven de gevoeligheid op van soorten en biotopen voor effecten ten gevolge van menselijke activiteiten. De tabellen bevatten deze gegevens voor de soorten waarvoor gewestelijke instandhoudingsdoelstellingen zijn opgest...

  12. De consequenties van categorieën: een analyse van grensoverschrijdende genre-identiteit in de populaire muziek

    NARCIS (Netherlands)

    van Venrooij, A.; Schmutz, V.

    2013-01-01

    Op basis van een analyse van de genreclassificaties door recensenten van 2951 popmuziekalbums worden in dit paper de consequenties onderzocht van het bezitten van een fuzzy of grensoverschrijdende genre-identiteit op het vergaren van commercieel en kritisch succes. De resultaten bevestigen in grote

  13. Advies voor de toepassing van ground-penetrating radar bij de inventarisatie van de grondwaterdynamiek

    NARCIS (Netherlands)

    Knotters, M.

    2001-01-01

    Ground-penetrating radar (GPR) biedt mogelijk een nauwkeurig alternatief voor arbeidsintensieve metingen van de grondwaterstand in boorgaten. De GPR-metingen kunnen als hulpinformatie dienen bij geostatistische interpolatie van grondwaterstanden. Op basis van literatuurstudie en verkenning van het

  14. Vrouekarakters in enkele prosawerke van C.M. van den Heever

    Directory of Open Access Journals (Sweden)

    E. Botha

    2003-08-01

    Full Text Available The role of women in some prose works of C.M. van den Heever Re-reading the C.M. van den Heever “classics” Somer (1935 and Laat vrugte (1939 within the framework of Van den Heever criticism through the years, one becomes aware that central themes in his oeuvre are acted out by women. The beautiful young girl Linda in Somer embodies the sadness of the transcience of beauty and happiness. Through Ouma Willa, Betta and Johanna – three women from three generations in Laat vrugte – the theme of the endurance of the memory of love and passion beyond decay and death is expressed. A cursory examination of other and earlier works by Van den Heever – Op die plaas (1927, Langs die grootpad (1928, Kromburg (1937 and the short story “Leuens” (Lies from Vuurvlieg en sterre (1934 – bears out the observation that women express core meanings in C.M. van den Heever’s prose works.

  15. Tranen van bloed : Het beleg van 's-Hertogenbosch en de oorlog in de Nederlanden, 1629

    NARCIS (Netherlands)

    Cauwer, de Peter

    2008-01-01

    Het beleg van 's-Hertogenbosch en de veldtocht van 1629 staat in de Nederlandse geschiedschrijving te boek als een van de meest roemruchte gebeurtenissen van de Tachtigjarige Oorlog. Het beeld en de interpretaties van deze gebeurtenis zijn de afgelopen decennia nauwelijks veranderd. Toch bleven de

  16. Onderdeel: Kwaliteit van uitleg, deel uitmakend van het onderzoek naar: Corporate governance in Nederland

    NARCIS (Netherlands)

    Schutte-Veenstra, J.N.; Boschma, H.E.

    2011-01-01

    De wijze en mate van naleving en toepasing van de principes en best practices van de nederlandse corporate governance code door de Nederlandse beursgenoteede vennootschappen in ht boekjaar 2010, alsmede de redengeving van eventuele afwijkingen, d.d. 21 september 2011.

  17. Groei van ongelijkjarige mengingen van grove den en berk op arme zandgronden; resultaten van metingen in 22 opstanden op de Veluwe en de Sallandse Heuvelrug

    NARCIS (Netherlands)

    Wijdeven, S.M.J.; Oosterbaan, A.; Berg, v.d. C.; Jole, van M.

    2000-01-01

    Het voorkomen en de groei van berk in ongelijkjarige mengingen van grove den en berk is bepaald op basis van opstandgemiddelden. Er is geen duidelijk verband tussen het voorkomen en de groei van berk en de schermdichtheid van grove den. Actuele groeigegevens zijn noodzakelijk voor een nadere

  18. Die meting van die invloed van organisasiegrootte op bruin werkers se houdings en gedrag

    Directory of Open Access Journals (Sweden)

    R. van der Bank

    1985-11-01

    'n Oorsig van die literatuur dui daarop dat bevindinge onkonsekwent is wat betref die invloed van die grootte van organisasies op veranderlikes soos die doeltreffendheid van personeel-keuringstelsels, opleiding, arbeidsomset, werkafwesigheid, werkdoeltreffendheid en so meer. In Wes-Kaapland is tien "groot" fabrieke geselekteer (aantal bruin werkers 300 of meer en vergelyk met 17 "klein" fabrieke (aantal bruin werkers minder as 50. Met behulp van t-toetse is statisties beduidende verskille gevind ten opsigte van die volgende veranderlikes waarvolgens groot organisasies meer gunstig vertoon: 1 meer keuringstegnieke word gebruik; 2 die doeltreffendheid van die keurings-programme is hoër; 3 meer opleidingstegnieke word gebruik; 4 opleidingsprogramme is meer doeltreffend; 5 werkers is meer tevrede; 6 werkers se gemiddelde beroepsaanpassing is beter, en 7 werkers is meer tevrede met hul salarisse of lone. Geen betekenisvolle verskille is egter gevind ten opsigte van arbeidsomset, werkafwesigheid en werkbehoeftes nie.

  19. 09 Van Coller 03.pmd

    African Journals Online (AJOL)

    Owner

    29 Jul 2010 ... strangeness, awakening in it a drama whose actors are all those assumptions and operations which make the text the work of another period”. Die spore van Raka: Oor herskrywing en kanonisering. (Deel 2). H.P. van Coller en A. van Jaarsveld. H. P. van Coller is hoof van die Departement. Afrikaans ...

  20. Het dichtwerk van Jan van Foreest (1585-1651)

    NARCIS (Netherlands)

    Vries, M. de

    2007-01-01

    The dissertation consists of an edition of Jan van Foreest's Greek poems and the greater part of those written in Latin, provided with translations and a succinct commentary in Dutch. A number of the Latin poems appears in print for the first time ever. Jan van Foreest (1586-1651) studied arts at

  1. Comparison of the insertion of the posterior horn of the lateral meniscus: discoid versus non-discoid.

    Science.gov (United States)

    Choi, Nam-Hong; Yang, Bong-Seok; Lee, Sang-Young; Lee, Chae-Chul; Lee, Chang-Yk; Victoroff, Brian N

    2017-02-01

    The purpose of this study was to compare the insertion sites of the posterior horn between discoid and non-discoid lateral meniscus using magnetic resonance imaging (MRI). Two hundred and twenty-seven patients who had MRI scans before surgery and underwent arthroscopy were enroled in this study. A coronal view showing the narrowest width of the midbody of the lateral meniscus was chosen to measure the widths of the entire tibial plateau and the midbody of the lateral meniscus. Considering the ratio of the meniscal width to the tibial plateau width, the patients were divided into non-discoid, incomplete discoid, and complete discoid groups. On a coronal view accurately showing the insertion of the posterior horn of the lateral meniscus, a distance between the peak of the lateral tibial eminence and the centre of the insertion of the posterior horn, and a width of the lateral tibial plateau between the lateral edge of the tibial plateau and the peak of the lateral tibial eminence were measured. The insertion centre of the posterior horn was located more medially in the incomplete and complete discoid groups than in the non-discoid group (p = 0.003, 0.010, respectively). When individual differences in the knee size were corrected, the insertion centre of the posterior horn in the incomplete discoid and complete discoid groups was located more medially than in the non-discoid group (p = 0.009, 0.003, respectively). The insertion centre of the posterior horn of the lateral meniscus is located more medially to the apex of the lateral tibial eminence in the discoid group than in the non-discoid group. This finding needs to be considered for an accurate position of the posterior horn of lateral meniscus during the lateral meniscal allograft transplantation. IV.

  2. Die boek Job as bron van intertekste vir ‘Wie weet?' (Die waarheid gelieg, 1984

    Directory of Open Access Journals (Sweden)

    E. Botha

    1995-05-01

    Full Text Available The Book of Job as a source of intertexts for T.T. Cloete’s short story ‘Wie weet?’ (Die waarheid gelieg, 1984 T.T. Cloete’s account of a woman's physical and spiritual agony in the short story “Wie weet?” ffrom Die waarheid gelieg, 1984, read within the South African/Afrikaans cultural context, presents several indicators that the Book of Job is its intertext, the most explicit pointer being the role of the sufferer’s sister-in-law. Intertextuality in Cloete’s oeuvre often takes the form of a creative reworking or rereading of texts (cf Scholtz, 1984; Botha, 1984; Roos, 1986. Roos comments on the caricatural treatment of theme in Cloete’s “Veg om te verloor” (Cloete, 1984, highlighted by the rereading imposed on the reader of Van Melle’s well-known story "Die joiner”, creating distrust in the implicit author of the Cloete text. The argument in this essay is that the explicit engagement of the intertext, as in "Wie weet?”, also serves as an affirmative complement to the negative incompleteness of the rereading. Thus the desperate questioning of "Wie weet?” becomes an integral part of a reading of Cloete’s oeuvre as a hymn to God’s omnipotence and mercy, epitomized in the poem "Van Horn en my” (Jukstaposisie, 1982.

  3. De miskenning van Theo van Doesburg; zijn bijdrage tot de ontwikkeling van de konkrete poëzie

    Directory of Open Access Journals (Sweden)

    J. van der Elst

    1987-05-01

    Full Text Available More literary critics outside Belgium and the Netherlands have written about Theo van Doesburg than from inside these countries. The first important monograph on him appeared in English - Theo van Doesburg - Propagandist and Practitioner of the Avant-Garde, 1909-1923, by Hannah Hedrick. Van Doesburg’s poetry developed in the direction of concrete poetry - the type of poetry in which the spatial, acoustic and visual characteristics of language are maximally utilized towards the creation of the poem. Word as sound and as image is foregrounded in concrete poetry, while the imaging of persons and subjective experience is eliminated as far as possible. The anecdotal or the epic component of the concrete poem is minimal and the language of this sort of poem has been reduced to the minimum. In the spirit of the theory of concrete poetry Van Doesburg advocates the liberation of art from all the commitments imposed upon it. That with which Van Doesburg began was continued by other poets, especially in Germanic literature by poets of the so-called neo-realism.

  4. Effect minerale samenstelling van bodem en plant op de expressie van bladnecrose bij Freesia

    NARCIS (Netherlands)

    Doorduin, J.C.; Bos, van den A.L.

    2003-01-01

    Freesiatelers veronderstellen een relatie tussen de voedingstoestand in de grond, de minerale samenstelling van de plant en de expressie van bladnecrose bij freesia. Op verzoek van de Landelijke Freesiacommissie van LTO is een inventarisatie uitgevoerd op ‘gezonde’ en ‘necrose’ bedrijven naar de

  5. Lysine analoga; bereiding en enzymatische hydrolyse van peptide derivaten van lysine en lysine analoga

    NARCIS (Netherlands)

    Tesser, Godefridus Ignatius

    1961-01-01

    De synthese van enkele structuuranaloga van lysine wordt beschreven. Aangetoond wordt dat zij lysine in substraten voor trypsine, cathepsine B en papaine kan vervangen. Daar de structuur van de analoga O-(Beta-aminoaethyl)serine en S-(Beta-aminoaethyl) cysteine die van lysine dicht nadert, wordt

  6. Verspreiding en habitats van Bulinus tropicus, tussengasheerslak van die peervormige bot Calicophoron microbothrium, in Suid-Afrika

    Directory of Open Access Journals (Sweden)

    K. N. de Kock

    2002-09-01

    Full Text Available Hierdie artikel fokus op die geografiese verspreiding en habitats van Bulinus tropicus, die slaktussengasheer van die peervormige bot, Calicophoron microbothrium. Bulinus tropicus is die varswaterslakspesie met verreweg die wydste geografiese verspreiding, soos gereflekteer deur die vindplekke van die 7 992 monsters wat tans in die databasis van die Nasionale Varswaterslakversameling (NVV van Suid-Afrika op rekord is. Die voorkoms van hierdie spesie is deur versamelaars in ’n totaal van 14 waterliggaamtipes opgeteken, maar die grootste getal monsters is in damme en spruite en in habitats waarvan die water as staande, helder en vars beskryf is, versamel. Die effekgrootte van elke veranderlike is afsonderlik bereken om die rol daarvan in die bepaling van die verspreiding van hierdie spesie vas te stel. Die data in die databasis is verder verwerk en aangepas om ’n geïntegreerde besluitnemingsboom saam te stel. Dit is ’n statistiese model waarvolgens ’n seleksie van veranderlikes gemaak kan word wat maksimaal kan diskrimineer tussen die voorkomsfrekwensie van ’n gegewe spesie en die res van die spesies in die databasis. Die sukses van B. tropicus soos gereflekteer deur sy omvangryke geografiese verspreiding, is waarskynlik toe te skryf aan die omstandigheid dat hierdie spesie grootliks r-geselekteerd is soos onteenseglik in bevolkingsdinamikastudies deur verskeie outeurs bevind is. Daarbenewens beskik die spesie oor’n besondere vermoë om opdroging van ’n habitat vir relatief lang tydperke te kan oorleef. Dit kom egter voor asof sy beperkte verdraagsaamheid ten opsigte van water met ’n relatief lae geleidingsvermoë, moontlik as ’n beperkende faktor vir sy besetting van bepaalde gebiede in Suid-Afrika mag optree. As tussengasheer vir C. microbothrium, wat paramphistomose by vee veroorsaak en soms tot groot verliese kan lei, het die wye verspreiding van B. tropicus in Suid-Afrika egter ook ekonomiese implikasies, veral vir inwoners

  7. Inventarisatie van mogelijke effecten van kribverlaging in de Waal op de beroepsvisserij

    NARCIS (Netherlands)

    Winter, H.V.

    2011-01-01

    Om de hoogwaterveiligheid van het rivierengebied te vergroten is het doel van Rijkswaterstaat om eind 2015 ca. 500 kribben in de Waal verlaagd te hebben en daarnaast langsdammen aangelegd te hebben tussen Wamel en Ophemert. In deze korte deskstudie wordt een inventarisatie gemaakt van mogelijke

  8. Beheersing en bestrijding van Botrytis cinerea en van Penicillium in Euphorbia fulgens

    NARCIS (Netherlands)

    Wubben, J.P.; Hazendonk, A.; Bosker, I.; Slootweg, C.; Hoope, ten M.

    2002-01-01

    De bloeiwijze van Euphorbia fulgens kent twee belangrijke schimmelbelagers, die problemen in de teelt veroorzaken: Botrytis cinerea en Penicillium. B. cinerea geeft schade in de vorm van smet of pokken, die op de bloemblaadjes verschijnen. Dit zijn kleine donkerbruine/zwarte plekjes van ongeveer 1

  9. Modellering van begrazing in SUMO : verbetering van de vegetatiemodellering in de Natuurplanner

    NARCIS (Netherlands)

    Wamelink, G.W.W.; Wegman, R.M.A.; Slim, P.A.; Dirksen, J.; Mol-Dijkstra, J.P.; Dobben, van H.F.

    2001-01-01

    In samenwerking met het RIVM en WU wordt het vegetatievoorspellingsmodel SUMO ontwikkeld. Het model vormt een integraal onderdeel met SMART en wordt onder andere gebruikt in de natuurplanner van het RIVM. Om de modellering van de effecten van begrazing op de vegetatieontwikkeling en successie

  10. Kwaliteitsdocument inzake de bepaling van Cadmium in kunststoffen met behulp van Rontgenflurescentie

    NARCIS (Netherlands)

    Hoogerbrugge R; van de Wiel HJ; van de Beek ACW; Kliest JJG; IEM

    1999-01-01

    Bij de handhaving van het besluit Cadmium in Kunststoffen is gebleken, dat de analyse met behulp van Rvntgenfluorescentie (XRF) een snel en goedkoop alternatief zou kunnen zijn voor de op dit moment wettelijk voorgeschreven methoden. In opdracht van de Inspecteur Milieuhygikne is daarom door het

  11. An assessment of a conical horn waveguide to represent the human eardrum

    Science.gov (United States)

    Fields, Taylor N.; Schnetzer, Lucia; Brister, Eileen; Yates, Charles W.; Withnell, Robert H.

    2018-05-01

    This study examined a model of the acoustic input impedance of the ear that includes a waveguide model of the eardrum. The eardrum was modeled as a lossless conical-horn with rigid walls. The ear canal was modeled as a one-dimensional lossy transmission line. The output impedance of the eardrum, the middle ear, and the cochlea, was modeled as a circuit analog. The model was fit to acoustic input impedance data from human ears using a nonlinear least-squares fit. The impact of a conical-horn shape for the eardrum was quantified by comparison with the eardrum modeled as a near-flat surface. The model provided a good match to the data over the frequency range examined. A conical-horn model of the human eardrum provided gain at high frequencies, most notably above 1–2 kHz, with a broader middle-ear frequency response. This finding may suggest that eardrum shape plays an important role in sound transmission to the cochlea.

  12. De morbiditeit van astma en COPD in Nederland; een inventariserend onderzoek ten behoeve van de beleidsondersteuning van het Nederlands Astma Fonds

    NARCIS (Netherlands)

    Smit HA; Beaumont M; CZE

    2000-01-01

    In opdracht van het Nederlands Astma Fonds is een inventarisatie gemaakt van beschikbare kennis over de morbiditeit van astma en COPD in Nederland. De volgende vraagstellingen werden geformuleerd: Inventarisatie: welke gegevensbronnen zijn beschikbaar, welke gegevens zijn daarin aanwezig? In

  13. ’n Evaluering van die welstand onder werknemers van ’n mediesefondsmaatskappy in Suid-Afrika

    Directory of Open Access Journals (Sweden)

    Lee-Anne Naicker

    2015-02-01

    Full Text Available Huidige navorsing op die gebied van welstand in die werkplek is gefragmenteer en vereis ’n holistiese, geïntegreerde en stelselmatige begrip van werknemerwelstand sodat gesondheiden welstandsorg doeltreffend bestuur kan word. Die toenemende las van nie-oordraagbare toestande in Suid-Afrika beklemtoon die noodsaaklikheid van voorkomingstrategieë soos welstandprogramme. Die werkomgewing bied ’n ideale plek, aangesien ’n groot deel van die bevolking geteiken word, insluitende diegene wie se lewenstyl verbeter moet word. Hierdie studie is dus daarop gemik om verskeie gesondheid- en welstandkomponente onder werknemers van ’n mediesefondsmaatskappy te evalueer in ’n poging om risikogebiede te identifiseer wat verdere ingryping vereis. Die deelnemers het bestaan uit 140 werknemers van ’n mediesefondsmaatskappy wat ten minste 40 h per week werk. Hulle is onderwerp aan ’n welstandassesseringsbattery bestaande uit antropometrieke, gesondheidverwante en fisieke kapasiteitmetings. Die resultate toon dat ingryping nodig is betreffende alkohol- en dwelmgebruik, dieetgewoontes, hartgesondheid, liggaamsamestelling, spieruithouvermoë, kardiorespiratoriese uithouvermoë en individuele persepsies van die maatskappy. Dié studie het resultate opgelewer wat die bevindings van baie vorige navorsing op hierdie gebied staaf. Die trefwydte van welstandprogramme op die Suid-Afrikaanse bevolking is egter beperk. Die sukses van welstandprogramme wat fisieke aktiwiteit beklemtoon, is goed gedokumenteer in hoë-inkomstelande, met bewys van die ekonomiese voordele en opbrengs op belegging. Gevolglik word daar aangevoer dat die toepassing van welstandprogramme ’n positiewe uitwerking op die Suid-Afrikaanse werkmag sal hê.

  14. Praktijkkennis van leerkrachten als ontwerpers van een ICT rijke leeromgeving

    NARCIS (Netherlands)

    Boschman, Ferry; McKenney, Susan; Voogt, Joke

    2011-01-01

    Ormel, B., Pareja, N., & McKenney, S. (2011, 8-10 June). Praktijkkennis van leerkrachten als ontwerpers van een ICT rijke leeromgeving. Presentation at the ORD annual meeting, Maastricht, The Netherlands.

  15. Interpolant tree automata and their application in Horn clause verification

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick

    2016-01-01

    This paper investigates the combination of abstract interpretation over the domain of convex polyhedra with interpolant tree automata, in an abstraction-refinement scheme for Horn clause verification. These techniques have been previously applied separately, but are combined in a new way in this ......This paper investigates the combination of abstract interpretation over the domain of convex polyhedra with interpolant tree automata, in an abstraction-refinement scheme for Horn clause verification. These techniques have been previously applied separately, but are combined in a new way...... clause verification problems indicates that the combination of interpolant tree automaton with abstract interpretation gives some increase in the power of the verification tool, while sometimes incurring a performance overhead....

  16. Mogelijkheden tot productie van beertjes

    NARCIS (Netherlands)

    Scholten, R.; Huiskes, J.

    1994-01-01

    In opdracht van het Produktschap Vee en Vlees is het project Mogelijkheden tot productie van vleesbeertjes en afzet van vlees en vleesproducten hiervan uitgevoerd. De afzetmogelijkheden voor vlees van beertjes zijn en blijven vooralsnog minimaal

  17. 2012, 11/01807, (Vrijstellingsmethode niet van toepassing op Amerikaans deel van bestuurdersbeloning)

    NARCIS (Netherlands)

    D. Molenaar (Dick)

    2012-01-01

    textabstractSamenvatting: Belanghebbende is met ingang van 1 februari 2004 werkzaam als CEO bij C en vanaf 31 december 2003 als statutair bestuurder van de Amerikaanse werkmaatschappij van C. Eind 2004 heeft belanghebbende een additioneel belang in C verworven. Het verschil tussen de waarde in het

  18. Van graf tot wieg ; de rol van fintech door de generaties heen

    NARCIS (Netherlands)

    Vries, A. de; Bakas, A.

    2015-01-01

    Als financiële dienstverlener moet je rekening houden met mensen van alle leeftijden en uit alle lagen van de bevolking. Van de hulpbehoevende senior tot de nieuwsgierige kleuter. We vroegen 2 experts wat verschillende levensfasen typeert, hoe deze persona’s tegen technologie aankijken en hoe

  19. De fysica van polymere materialen

    NARCIS (Netherlands)

    Struik, L.C.E.

    1987-01-01

    Rede, uitgesproken ter gelegenheid van de aanvaarding van het ambt van buitengewoon hoogleraar in de fysica van polymere materialen aan de Universitelt Twente op donderdag 22 januarì 1987 door Dr.lr. L.C.E. Struik.

  20. Greenberger-Horne-Zeilinger nonlocality in arbitrary even dimensions

    International Nuclear Information System (INIS)

    Lee, Jinhyoung; Lee, Seung-Woo; Kim, M. S.

    2006-01-01

    We generalize Greenberger-Horne-Zeilinger (GHZ) nonlocality to every even-dimensional and odd-partite system. For the purpose we employ concurrent observables that are incompatible and nevertheless have a common eigenstate. It is remarkable that a tripartite system can exhibit the genuinely high-dimensional GHZ nonlocality

  1. How Hugh Hampton Young's treatment of President Woodrow Wilson's urinary retention and urosepsis affected the resolution of World War I.

    Science.gov (United States)

    Fogg, Ryan; Kutikov, Alexander; Uzzo, Robert G; Canter, Daniel

    2011-09-01

    President Woodrow Wilson was never able to gain ratification of the Treaty of Versailles, the peace accord to end World War I. Before he could convince the American people of the importance of ratification, Wilson suffered a stroke followed by life threatening urinary sepsis due to urinary retention, and was treated by the father of modern urology, Hugh Hampton Young. The effects of these health problems are examined in the context of their implications on international affairs. Biographical sources and primary documentation of Wilson's physicians were reviewed to determine the effect of Wilson's stroke on his voiding habits. Hugh Hampton Young's evaluation and decision making is examined in depth. In the fall of 1919 President Wilson was recovering from a stroke. Shortly after the stroke his preexisting voiding dysfunction progressed to urinary retention from which urinary sepsis developed. Hugh Hampton Young advised on Wilson's case and counseled patience over surgery. The President began voiding spontaneously and recovered from sepsis. The illness left him severely weakened and unable to mount an aggressive campaign to persuade the U.S. Senate of the importance of ratifying the Treaty of Versailles. His personal physician, Admiral Cary T. Grayson, stated that the President was mentally never the same after the sepsis. Wilson's voiding dysfunction contributed to his inability to win approval for the Treaty of Versailles and the League of Nations. As a result, the United States returned to a policy of isolationism and Europe plunged into 2 decades of upheaval, leading to World War II. Copyright © 2011 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

  2. Die histologie en ultrastruktuur van die hepatopankreas van die bloukurper Oreochromis mossambicus

    Directory of Open Access Journals (Sweden)

    M. M. Nel

    1990-07-01

    Full Text Available Die histologie en ultrastruktuur van die hepatopankreas van die bloukurper Oreochromis mossambicus word beskryf. ’n Dun bindweefselkapsel omring die lewer. Die hepatosietrangskikking vertoon as lobules, met die koorde van hepatosiete wat vanaf ’n sentrale vene uitradieer en met mekaar anastomaseer. Indiwiduele lewerlohules vertoon nie duidelike grense nie, maar enkele duidelike triades word wel in die lewer van O. mossambicus aangetref. Die hepatosiete bevat ’n enkele ronde kern met ’n duidelike nukleolus en die growwe endoplasmiese retikula kom in twee of meer rye om die kerne en teen die selgrense van die hepatosiete voor. Die ander sitoplasmiese organelle kom verspreid in die hepatosietsitoplasma voor. Die eksokriene pankreasselle is om die portale venes gesetel. Die kerne van hierdie selle is rond en is hasaal in die kubies- tot silindervormige selle gelee. ’n Goedontwikkelde growwe endoplasmiese retikulum — vesikulêr, tubulêr en sirkulêr in vorm — en sektretoriese granules wat apikaal in die sel gelee is, kom voor.

  3. Verspreiding van zout bij het terugwinnen van zeezand uit een depot in het Haringvliet

    NARCIS (Netherlands)

    Kranenburg, C.

    1991-01-01

    Dit rapport geeft een beknopte analyse van de verdunning en verspreiding van zout vanuit een gepland depot voor ontzilt zeezand in het Haringvliet. Beschouwd zijn de initiële menging van het zout bij terugwinnen van het zand, de verspreiding door stroming en turbulentie bij geopende spuisluis, en de

  4. Van strafbaar tot huwbaar : homorecht wereldwijd (presentatie op Ministerie van Buitenlandse Zaken, Den Haag)

    NARCIS (Netherlands)

    Waaldijk, C.

    2015-01-01

    Met de door hem ontwikkelde Global Index on Legal Recognition of Homosexual Orientation (GILRHO) geeft Kees Waaldijk op een schaal van nul tot acht aan, hoe ver een land is met het uit het strafrecht halen van homoseksualiteit, met het verbieden van homodiscriminatie en met het erkennen van

  5. Voorkoming en beheersing van gebreksverschijnselen in de bloembollenteelt : teelt en afbroeiproeven met als doel het voorkomen van ijzergebrek bij tulpen, hyacinten en narcissen van mangaangebrek bij tulpen en van vervroegde afsterving bij lelies

    NARCIS (Netherlands)

    Dam, van A.M.; Dam, van M.F.N.; Bruin, P.N.A.

    2004-01-01

    Door veranderingen in de teelten en de aanscherping van het overheidsbeleid t.a.v. het gebruik van met name dierlijke mest kunnen zich bij de teelt van bloembollen verschijnselen voordoen die mogelijk samenhangen met een gebreksituatie. PPO heeft in dit project een aantal van deze verschijnselen

  6. Kosten van allogene stamceltransplantaties

    NARCIS (Netherlands)

    M. van Agthoven (Michel); M.T. Groot (Martijn); C.A. Uyl-de Groot (Carin)

    2001-01-01

    textabstractAllogene stamceltransplantatie is een topspecialistische procedure die met succes kan worden ingezet in de behandeling van (hematologische) maligniteiten, met name bij leukemie. Van oudsher worden transplantaten van verwante donoren gebruikt, maar met de mogelijkheden om transplantaten

  7. Tripartite entanglement versus tripartite nonlocality in three-qubit Greenberger-Horne-Zeilinger-class states.

    Science.gov (United States)

    Ghose, S; Sinclair, N; Debnath, S; Rungta, P; Stock, R

    2009-06-26

    We analyze the relationship between tripartite entanglement and genuine tripartite nonlocality for three-qubit pure states in the Greenberger-Horne-Zeilinger class. We consider a family of states known as the generalized Greenberger-Horne-Zeilinger states and derive an analytical expression relating the three-tangle, which quantifies tripartite entanglement, to the Svetlichny inequality, which is a Bell-type inequality that is violated only when all three qubits are nonlocally correlated. We show that states with three-tangle less than 1/2 do not violate the Svetlichny inequality. On the other hand, a set of states known as the maximal slice states does violate the Svetlichny inequality, and exactly analogous to the two-qubit case, the amount of violation is directly related to the degree of tripartite entanglement. We discuss further interesting properties of the generalized Greenberger-Horne-Zeilinger and maximal slice states.

  8. Contra-expertise op bepalingen van radioactiviteit van afvalwater en ventilatielucht van de kernenergiecentrale Borssele. Periode 2008

    NARCIS (Netherlands)

    Kwakman PJM; Overwater RMW; LSO

    2012-01-01

    Dit rapport is eerder vertrouwelijk uitgebracht als briefrapport 610330093. Dit is besproken met de VROM-opdrachtgever en vertegenwoordigers van de betreffende nucleaire installatie: het commentaar op het rapport is verwerkt, voorzien van een Rapport in het Kort, en mag openbaar worden als RIVM

  9. Contra-expertise op bepalingen van radioactiviteit van afvalwater en ventilatielucht van de kernenergiecentrale Borssele. Periode 2009

    NARCIS (Netherlands)

    Kwakman PJM; Overwater RMW; LSO

    2012-01-01

    Dit rapport is eerder vertrouwelijk uitgebracht als briefrapport 610330103. Dit is besproken met de VROM-opdrachtgever en vertegenwoordigers van de betreffende nucleaire installatie: het commentaar op het rapport is verwerkt, voorzien van een Rapport in het Kort, en mag openbaar worden als RIVM

  10. Contra-expertise op bepalingen van radioactiviteit van afvalwater en ventilatielucht van de kernenergiecentrale Borssele. Periode 2007

    NARCIS (Netherlands)

    Kwakman PJM; Overwater RMW; LSO

    2012-01-01

    Dit rapport is eerder vertrouwelijk uitgebracht als briefrapport 610330076. Dit is besproken met de VROM-opdrachtgever en vertegenwoordigers van de betreffende nucleaire installatie: het commentaar op het rapport is verwerkt, voorzien van een Rapport in het Kort, en mag openbaar worden als RIVM

  11. Resultaten van het RWS-RIKZ JAMP 2003 monitoringsprogramma van bot (Platychthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot en mosselen

    NARCIS (Netherlands)

    Kotterman, M.J.J.

    2004-01-01

    In opdracht van RWS-RIKZ werden door het RIVO werkzaamheden uitgevoerd in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De werkzaamheden bestonden uit het verzamelen van monsters bot waarvan biologische parameters werden bepaald. Tevens werden milieukritische stoffen

  12. Resultaten van het RWS-RIKZ JAMP 2004 monitoringsprogramma van bot (Platichthys flesus L.). Biologische gegevens van bot en milieukritische stoffen in bot en mosselen

    NARCIS (Netherlands)

    Kotterman, M.J.J.

    2005-01-01

    In opdracht van RWS-RIKZ werden door het RIVO werkzaamheden uitgevoerd in het kader van het Joint Assessment and Monitoring Program van de OSPARCOM. De werkzaamheden bestonden uit het verzamelen van monsters bot waarvan biologische parameters werden bepaald. Tevens werden milieukritische stoffen

  13. ‘Op de wijze van Kavafis’: Die voorbeeld van die digter uit Alexandrië

    Directory of Open Access Journals (Sweden)

    Phil van Schalkwyk

    2014-12-01

    Full Text Available Die Griekse digter K.P. Kavafis (1863–1933 word wêreldwyd deur lesers sowel as skrywers besonder hoog geag. Hy het nie net van die grootste twintigste-eeuse skrywers beïnvloed nie,maar is vanweë die buitengewone vertaalbaarheid van sy werk ook betreklik sterk teenwoordig in die letterkunde van meer tale as slegs Grieks en Engels. Vir baie – veral gay lesers, skrywers en kunstenaars – besit Kavafis ’n voorbeeldstatus, ten opsigte van die letterkunde sowel asdie lewe. W.H. Auden het beweer dat dit wat Kavafis onderskei, sy stemtoon is, een wat ’n persoon met ’n unieke perspektief op die wêreld openbaar. Hierdie bydrae, wat deel is van ’nnavorsingsprojek oor idiolektiese skrywersidentiteit, is daarop gerig om die onderskeidende kenmerke van Kavafis se werk, sowel in terme van vorm as inhoud, opnuut te ondersoek. Dit word gedoen binne die raamwerk van die breë kritiese diskoers oor Kavafis en met verwysing na enkele manifestasies/voorbeelde van Nederlandse en Afrikaanse kritiese en kreatieweperspektiewe op sy poësie, met die doel om spesifiek lig te werp op die besondere soortwysheid wat in Kavafis se werk oorgedra word.

  14. Preliminary test results from a telescope of Hughes pixel arrays at FNAL

    International Nuclear Information System (INIS)

    Jernigan, J.G.; Arens, J.; Vezie, D.; Collins, T.; Krider, J.; Skubic, P.

    1992-09-01

    In December of 1991 three silicon hybrid pixel detectors each having 2.56 x 2.56 pixels 30 μm square, made by the Hughes Aircraft Company, were placed in a high energy muon beam at the Fermi National Accelerator Laboratory. Straight tracks were recorded in these detectors at angles to the normal to the plane of the silicon ranging from 0 to 45 degrees. In this note, preliminary results are presented on the straight through tracks, i.e., those passing through the telescope at normal incidence. Pulse height data, signal-to-noise data, and preliminary straight line fits to the data resulting in residual distributions are presented. Preliminary calculations show spatial resolution of less than 5 μm in two dimensions

  15. Stabilisatie en samenstelling van het glycosidenmengsel van Folia digitalis

    NARCIS (Netherlands)

    Tattje, Derk Hendrik Evert

    1952-01-01

    Na een korte inleiding wordt een omschrijving van het begrip stabilisatie gegeven en besproken hoe deze stabilisatie, dit is het irreversibel inactiveren van de enzymen, in het algemeen tot stand kan worden gebracht. Tevens wordt nagegaan of ook door verschillende oplosmiddelen reeds bij gewone

  16. 2002 Report to Congress: Evaluating the Consensus Best Practices Developed through the Howard Hughes Medical Institute’s Collaborative Hazardous Waste Management Demonstration Project

    Science.gov (United States)

    This report discusses a collaborative project initiated by the Howard Hughes Medical Institute (HHMI) to establish and evaluate a performance-based approach to management of hazardous wastes in the laboratories of academic research institutions.

  17. Controle van spectrofotometers in ziekenhuislaboratoria

    NARCIS (Netherlands)

    Ham; W.A.van den; Steentjes; G.M.; Buitenhuis; S.G.; Terlingen; J.B.A.

    1985-01-01

    In dit rapport worden de resultaten beschreven van een onderzoek dat door twee medewerkers van het Laboratorium voor Klinische Chemie en Hematologie werd ingesteld naar de toestand van 22 fotometers in ziekenhuislaboratoria. Onderzocht werden: - juistheid van de golflengte-instelling - juistheid

  18. Ingredienten voor kwaliteitsborging van modelonderzoek

    NARCIS (Netherlands)

    Grinsven JJM van; Haan BJ de; Braat LC; MNV; LBG; CIM

    1995-01-01

    In dit rapport wordt een aanzet gepresenteerd tot harmonisatie van de kwaliteitsborging van modelonderzoek in het RIVM. Het rapport komt voort uit initiatieven van leden van het Intersectoraal Modellen Overleg. Het rapport is in eerste instantie bedoeld voor onderzoekers die modellen

  19. Die meting van sistematiese tydorientasie as 'n sielkundige konstruk van Beroepsgedrag

    Directory of Open Access Journals (Sweden)

    J. I. De Jager

    1985-11-01

    Met hierdie navorsing is gepoog om 'n persoonsbeeld van 'n individu met ‘n sistematiese tydoriëntasiestyl saam te stel, en om 'n verfynde instrument vir die meting van sistematiese tydoriëntasie te ontwikkel. Resultate toon dat die vraelys wel 'n bevredigende interne bestendigheid het en ook as ‘n verfynde instrument vir die meting van sistematiese tydoriëntasie beskou kan word.

  20. Ontwikkeling van een protocol voor de transformatie van iris; introductie van resistentie tegen irismozaik viris (IMMV)

    NARCIS (Netherlands)

    Langeveld, S.A.; Klerk, de G.J.M.

    2004-01-01

    Twee iris cultivars, Blue Magic en Blue Sail, werden in weefselkweek gebracht en callus werd geïnduceerd. Dit callus werd genetisch gemodificeerd met virusresistentie via de particle gun procedure die eerder voor lelie was ontwikkeld. Van een van de cultivars, Blue Magic, werden getransformeerde

  1. Preliminary hydrologic evaluation of the North Horn Mountain coal-resource area, Utah

    Science.gov (United States)

    Graham, M.J.; Tooley, John E.; Price, Don

    1981-01-01

    North Horn Mountain is part of a deeply dissected plateau in central Utah which is characterized by deep, narrow, steep-walled canyons with local relief of more than 1,000 feet. Geologic units exposed in the North Horn Mountain area range in age from Late Cretaceous to Holocene and contain two mineable seams of Cretaceous coal. The area is in the drainage basin of the San Rafael River, in the Colorado River Basin. Runoff from the mountain is ephemeral. This runoff to the San Rafael River is by way of Cottonwood and Perron Creeks and represents less than 10 percent of their average annual runoff. Probable peak discharges (100-year flood) for the ephemeral streams draining North Horn Mountain are estimated to range from 200 to 380 cubic feet per second.The chemical quality of surface water in the area is good. The water is generally of a calcium magnesium bicarbonate type with average dissolved solids less than 500 milligrams per liter. Annual sediment yield in most of the area ranges from 0.1 to 0.2 acre-foot per square mile but locally is as high as 1.0 acre-foot per square mile. Most of the sediment is eroded during cloudbursts.Most of the ground water above the coal on North Horn Mountain probably is in perched aquifers. These aquifers support the flow of small seeps and springs. In some areas, the regional water table appears to extend upward into the coal. The principal source of recharge is precipitation that probably moves to aquifers along faults, joints, or fractures. This movement is apparently quite rapid. The dissolved-solids concentrations of ground water in the North Horn Mountain area range from less than 500 to about 1,000 milligrams per liter.Coal mining on North Horn Mountain should have minor "effects on the quantity and quality of surface water. The maximum predicted decrease in the annual flow of Ferron and Cottonwood Creeks is less than U percent. The sediment loads of affected streams could be significantly increased if construction were to

  2. Rudimentary horn pregnancy in the first trimester; importance of ultrasound and clinical suspicion in early diagnosis: A case report

    Directory of Open Access Journals (Sweden)

    Hasan Terzi

    2014-09-01

    Full Text Available We aimed to present 7-8 weeks rudimentary horn pregnancy detected preoperatively. A 37-year-old woman, gravida 3, para 2, at 7-8 weeks’ gestation referred to our clinic with a complaint of abdominal pain. The patient was primarily infertile, and she had unicornuate uterus detected during infertility investigation. Due to abnormal ultrasonographic image, rudimentary horn pregnancy was considered. Accurate diagnosis was made by laparoscopy, and rudimentary horn excision was performed. Prerupture diagnosis is very difficult in rudimentary horn pregnancies. The key role in preoperative diagnosis is suspicion. Ultrasonographic examination and clinical suspicion are sufficient in most cases.

  3. Analysis of hepatic capsular enhancement mimicking the Fitz-hugh-curtis syndrome on a multidetector computed tomography

    International Nuclear Information System (INIS)

    Park, Ji Sang; Park, Seong Jin; Lee, Hae Kyung; Yi, Boem Ha; Hong, Hyun Sook; Cha, Jang Gyu; Lim, Hoon

    2008-01-01

    To determine the associated diseases causing hepatic capsular enhancement and analyze the relationship of the capsular enhancement patterns as a function of the associated diseases. We retrospectively reviewed 797 patients having undergone arterial phase abdominal CT scans. Among these images, 47 patients showed hepatic capsular enhancement (13 men and 34 women; mean age: 53.1; age range: 5-91 years). We investigated if there was a correlation between the pattern of hepatic capsular enhancement and cause of disease. When the hepatic capsular enhancement was found to persist until the portal phase, the symptom duration was evaluated. Hepatic capsular enhancements were presented in 5.9% (47/797) of the arterial phase abdominal CT scans. Six patients (12.8%) were diagnosed with Fitz-Hugh-Curtis syndrome. The other causes of hepatic capsular enhancement included 20 cases of inflammation, 13 cases of malignancy, and 8 cases of other diseases. The extent of the hepatic capsular enhancement was not significantly different among the causes of disease. In thirty two of 47 patients (68.1%), hepatic capsular enhancement persisted until the portal phase images. Hepatic capsular enhancement on an arterial phase is a nonspecific imaging finding observed in the Fitz-Hugh-Curtis syndrome as well as a variety of other diseases. A CT is useful in finding the hepatic capsular enhancement and determining the accompanying disease

  4. Plaatsen van beschaafd vertier

    Directory of Open Access Journals (Sweden)

    James Kennedy

    2014-09-01

    Full Text Available Plaatsen van beschaafd vertier [Places of civilised amusement] by Jan Hein Furnée, which appeared as a PhD thesis in 2007 and was adapted and extended into a book in 2012, is regarded by historians of the Low Countries as an impressive tour de force. In a stimulating manner Furnée demonstrates with this profound urban history that for the elite of The Hague leisure activities played an important role in acquiring status and maintaining their position. His study is based on extensive and systematic research into a great variety of sources, from census registers, membership lists of clubs and societies to address books. This gives the reader an extraordinarily detailed picture of the changing social relations in the upper echelons of society in The Hague in the latter half of the nineteenth century. The sophisticated use of both qualitative and quantitative methods can serve as a model for other historians in the field of urban history. In a lively fashion Furnée shows that the inhabitants of The Hague grasped at all kinds of pastimes in order to distinguish themselves from others, and when possible to increase their own status through their participation in elegant societies, theatre visits or supporting the proposed zoo: but the book also makes statements about status and class, the history of gender and of politics at the end of the nineteenth century. Plaatsen van beschaafd vertier van Jan Hein Furnée dat in 2007 als proefschrift en in 2012 bewerkt en uitgebreid als boek verscheen, staat onder historici van de Lage Landen bekend als een imponerende tour de force. Op prikkelende wijze laat Furnée in deze diepgravende stadsgeschiedenis zien dat vrijetijdsbesteding voor Haagse elites een belangrijke rol speelde in standsvorming en handhaving van hun positie. Zijn studie is gebaseerd op uitgebreid en systematisch onderzoek van veelsoortige bronnen, van volkstellingsregisters, ledenlijsten van verenigingen en sociëteiten tot adresboeken

  5. Van wie zijn zij? De ambtenaren

    NARCIS (Netherlands)

    Peters, Jit

    2011-01-01

    Aan de hand van actuele voorbeelden gaat Jit Peters tijdens zijn afscheidscollege in op de toegenomen macht van ambtenaren. De loyaliteit van de ambtenaar is volgens hem nu te veel gericht op het ondersteunen van de eigen minister. Als tegenwichten van de macht van de ambtenaar staat Peters stil bij

  6. Characterisation of rebound depolarisation in mice deep dorsal horn neurons in vitro.

    Science.gov (United States)

    Rivera-Arconada, Ivan; Lopez-Garcia, Jose A

    2015-09-01

    Spinal dorsal horn neurons constitute the first relay for pain processing and participate in the processing of other sensory, motor and autonomic information. At the cellular level, intrinsic excitability is a factor contributing to network function. In turn, excitability is set by the array of ionic conductance expressed by neurons. Here, we set out to characterise rebound depolarisation following hyperpolarisation, a feature frequently described in dorsal horn neurons but never addressed in depth. To this end, an in vitro preparation of the spinal cord from mice pups was used combined with whole-cell recordings in current and voltage clamp modes. Results show the expression of H- and/or T-type currents in a significant proportion of dorsal horn neurons. The expression of these currents determines the presence of rebound behaviour at the end of hyperpolarising pulses. T-type calcium currents were associated to high-amplitude rebounds usually involving high-frequency action potential firing. H-currents were associated to low-amplitude rebounds less prone to elicit firing or firing at lower frequencies. For a large proportion of neurons expressing both currents, the H-current constitutes a mechanism to ensure a faster response after hyperpolarisations, adjusting the latency of the rebound firing. We conclude that rebound depolarisation and firing are intrinsic factors to many dorsal horn neurons that may constitute a mechanism to integrate somatosensory information in the spinal cord, allowing for a rapid switch from inhibited-to-excited states.

  7. Microbewerking met behulp van lasers

    NARCIS (Netherlands)

    Ezendam, M.M.M.

    1994-01-01

    Het bewerken van materialen met behulp van lasers staat momenteel enorm in de belangstelling, en terecht. De ontwikkeling van bestaande en nieuwe typen lasers staat alles behalve stil. Ontwikkelingen bevinden zich met name in het gebied van hogere vermogens, betere bundelkwaliteit en hogere

  8. PUBLIC AFFAIRS DIRECTOR HUGH HARRIS SPEAKS AT THE APOLLO/SATURN V CENTER RIBBON-CUTTING CEREMONY

    Science.gov (United States)

    1996-01-01

    NASA/KSC Public Affairs Director Hugh W. Harris gives the welcome and introductions at the ribbon-cutting ceremony to officially open the new Apollo/Saturn V Center, part of the Kennedy Space Center Visitor Center. The 100,000- square-foot facility includes two theaters, various exhibits and an Apollo-era Saturn V rocket, which formerly was on display outside the Vehicle Assembly Building and is one of only three moon rockets remaining in existence. The new center is located off the Kennedy Parkway at the Banana Creek launch viewing site.

  9. Thijs van Vugt, Een arbeidersbuurt onder de rook van ‘De Sphinx’. Eeen sociaal-ruimtelijke geschiedenis van het Boschstraatkwartier-Oost te Maastricht, 1829-1904

    Directory of Open Access Journals (Sweden)

    Christianne Smit

    2015-12-01

    Full Text Available Thijs van Vugt, Een arbeidersbuurt onder de rook van ‘De Sphinx’. Een sociaal-ruimtelijke geschiedenis van het Boschstraatkwartier-Oost te Maastricht, 1829-1904 (Dissertatie Universiteit van Maastricht 2015; Maaslandse Monografieën 78; Hilversum: Verloren, 2015, 228 pp., isbn 978 90 8704 493 0.

  10. De Smartcard van 2010

    NARCIS (Netherlands)

    Hartel, Pieter H.; Jacobs, Bart

    2001-01-01

    Aan de universiteiten van Twente en Nijmegen zijn twee onderzoeksgroepen onder leiding van de auteurs intensief bezig met smartcards. Beide auteurs zijn eerder dit jaar betrokken geweest bij het opstellen van de nieuwe Europese onderzoeksagenda voor smartcards, binnen het zogenaamde zesde kader

  11. Lichtdoorlatendheid van kasdekken onder verschillende omstsndigheden

    NARCIS (Netherlands)

    Bot, G.P.A.

    1984-01-01

    Aandacht voor lichtonderschepping; bewolkingsgraad; direkte straling; diffuse straling en gevolgen van veranderingen in kaskonstruktie of materiaaleigenschappen ten aanzien van de lichtdoorlatendheid. Bij vergelijking van de lichttransmissie van diverse kasdekken dient te worden uitgegaan van

  12. Vloeistof-vloeistof verdeling als onderzoekmethode bij de vergelijking van enige rassen van digitalis purpurea L.

    NARCIS (Netherlands)

    Henning, Gerardus Johannes

    1962-01-01

    De samenstelling van het glycosidenmengsel van drie rassen van Digitalis purpura L. werd in verschillende groeistadia onderzocht. Door extractie met chloroform van een waterige oplossing der in het gefermenteerde blad voorkomende glycosiden werden deze in twee groepen verdeeld, een in chloroform

  13. Algemene principes van palliatieve zorg

    NARCIS (Netherlands)

    de Graeff, A; Jobse, A.; Teunissen, SCCM; Verkuijlen, S.; Vissers, K.C.P.; Zylicz, Z; Gilsing, M.

    2017-01-01

    Palliatieve zorg is een benadering die de kwaliteit van leven verbetert van patiënten (kinderen en volwassenen) en hun naasten die te maken hebben met een levensbedreigende aandoening, door het voorkomen en verlichten van lijden door middel van vroegtijdige signalering en zorgvuldige beoordeling en

  14. Burnout : de stand van zaken

    NARCIS (Netherlands)

    Taris, T.; Houtman, I.L.D.; Schaufeli, W.

    2013-01-01

    Dit artikel geeft een overzicht van de stand van zaken in het onderzoek naar burnout. Burnout is een syndroom van extreme vermoeidheid (uitputting), afstand nemen van het werk (distantie) en weinig vertrouwen in het eigen kunnen (verminderde competentie), waarbij de oorzaken voor deze aspecten

  15. Bestrijding van duist in wintertarwe

    NARCIS (Netherlands)

    Timmer, R.D.

    2006-01-01

    Duist, en speciaal resistente duist, is één van de grootste problemen in het graantelend gebied het Oldambt. De wintertarwegewassen ondervinden sterke concurrentie van de groeiende duistpopulatie, hetgeen ten koste gaat van de opbrengst. De inzet en kosten van de toegepaste herbiciden nemen toe

  16. Design of the Fermilab neutrino horn train system referenced to radioactive maintenance

    International Nuclear Information System (INIS)

    Grimson, J.; Lindberg, J.; Simon, J.; Theriot, D.

    1975-01-01

    A high-energy physics device known as a Horn, which operates at 140,000 A and 8 kV, has unique problems in keeping it operationally serviced after being exposed to 300- to 400-GeV protons and 1 to 5 x 10 13 protons per pulse. A modular system consisting of two horns, one cooled by a pulsed water spray and the other by forced air cooling, along with their associated utilities and instrumentation, was designed for primary servicing using electric master-slave manipulators and TV viewing

  17. Die konteks vir die keuse van geriefsvoedsel van bepaalde ...

    African Journals Online (AJOL)

    Seugnet

    70. Die konteks vir die keuse van geriefsvoedsel van bepaalde beroepsvroue *. Martha Kok en Priscilla Botha. ABSTRACT. The purpose of this research is to understand and describe the context in which career women choose, purchase and use convenience food (CF). A person is rarely isolated from or unaffected by.

  18. Greenberger-Horne-Zeilinger paradoxes for N N-dimensional systems

    International Nuclear Information System (INIS)

    Kaszlikowski, Dagomir; Zukowski, Marek

    2002-01-01

    We show the series of Greenberger-Horne-Zeilinger-like paradoxes for N maximally entangled N-dimensional quantum systems. The hypothesis of local hidden variables leads to a prediction of perfect correlations that do not appear for the quantum systems

  19. Het presteren van FM

    NARCIS (Netherlands)

    van der Voordt, D.J.M.

    2008-01-01

    Prestatieafspraken. Prestatiespecificaties. Prestatiecontracten. Het woord prestatie duikt steeds vaker op in de wereld van FM. Maar wat bedoelen we er nu precies mee? En kunnen we de prestaties van FM wel op een betrouwbare en valide manier meten? Een beschouwing vanuit de wereld van een

  20. Enkele hydrologische aspecten van een bodem- en grondwaterverontreiniging op het fabrieksterrein van Nestle te Rotterdam

    NARCIS (Netherlands)

    Mulschlegel; J.; Kusse; A.A.M.

    1984-01-01

    De Regionaal Inspecteur van de Volksgezondheid voor de Milieuhygiene voor Zuid-Holland verzocht RIVM-LBG inzicht te geven in de eventuele verbreiding van een verontreiniging op het fabrieksterrein van Nestle te Rotterdam. Bij het uitgevoerde onderzoek is gebruik gemaakt van een 3-dimensionaal

  1. Die bantering van daar-interferensie in die Duits van Afrikaansmoedertaliges

    Directory of Open Access Journals (Sweden)

    Emerencia C. Steyn

    2013-02-01

    Full Text Available A comparison of sentence constructions in the soundtracks (simulcast of some television programmes indicates a general lack of a German equivalent for the multiple use of the A.frikaans daar. This naturally results in interference in the usage of German by A.frikaans speaking students, as they are inclined to construct their German sentences in accordance with the A.frikaans equivalents. This problem is mainly illustrated in either the erroneous use of a da or an inappropriate es gibt. Various exercises are submitted, aimed at obviating such errors of interference which are mainly noticeable in the spoken ·language. Soos blyk uit 'n vergelyking van segslryses in die parallelle klankbane van enkele televisieprogramme, het die veelvuldige gebruik van die Afrikaanse woord daar gewoonlik geen ekwivalensie in Duits nie. Dit lei maklik tot interferensie in die Duits van Afrikaansmoedertalige studente, omdat hulle daartoe neig om hul Duitse sinne soos die in A.frikaans te konstrueer. Hierdie probleem word hoofsaaklik in die foutiewe gebruik van da geopenbaar; soms egter ook in 'n misplaaste es gibt. Verskeie oefeninge word aan die hand gedoen om sulke interferensiefoute, wat vera! in m(mdelinge werk opduik, te bekamp.

  2. Preventie van slaapgebrek en vermoeidheid

    NARCIS (Netherlands)

    Simons, R; Valk, P.

    2006-01-01

    Korte schets van de bijdrage aan het Europese Fit-to Fly project ( Early Warning Systems sensoren) van TNO Defensie en Veiligheid en hun eigen onderzoek naar fase-verschuiving van de slaap en strategisch gedoseerde slaapperioden. De eisen die een missie aan het personeel stelt, de verstoring van het

  3. Teelt van hybride wintertarwerassen

    NARCIS (Netherlands)

    Timmer, R.D.; Paauw, J.G.M.

    2003-01-01

    Om de mogelijkheden van de teelt van hybride wintertarwerassen onder Nederlandse omstandigheden in beeld te brengen zijn er van 2000-2002 proeven uitgevoerd op het PPO-proefbedrijf te Lelystad. In deze proeven zijn een 4-tal hybriderassen (Hybnos, Hyno-braba, Hyno-esta, Mercury) vergeleken met een

  4. De keuze van Vincent

    NARCIS (Netherlands)

    Stolwijk, Chris

    2003-01-01

    Official publication to accompany the important exhibition Vincent's Choice, Van Gogh's 'musee imaginaire' at the Van Gogh Museum, Amsterdam marking the 150th anniversary of the artist's birth.Thanks to van Gogh's correspondence, it has been possible to identify the works he knew and admired. The

  5. Cutaneous horn and thermal keratosis in erythema AB igne

    Directory of Open Access Journals (Sweden)

    Sood Apra

    2002-01-01

    Full Text Available A 46 - year - old Kashmiri lady developed erythema ab igne on both legs. She subsequently developed multiple keratoses and a cutaneous horn in the involved skin. An uncommon association of these three clinical conditions is being presented.

  6. ‘Anders slapen’. Evaluatie van ‘anders slapen’: een pilotonderzoek naar het effect van ‘anders slapen’ bij spanningshoofdpijn op Kwaliteit van Leven en participatie.

    NARCIS (Netherlands)

    de Vlugt, Liesbeth

    2014-01-01

    Samenvatting Inleiding- (Spannings)hoofdpijn is een veelvoorkomend probleem dat van invloed is op de Kwaliteit van Leven (KvL) en participatie van mensen in het dagelijks leven. Cervicogene hoofdpijn is een vorm van spanningshoofdpijn, waarbij de oorzaak gelegen is in spanning in de nek. Elkhuizen

  7. Radioactivity levels in mussels and sediments of the Golden Horn by the Bosphorus Strait, Marmara Sea.

    Science.gov (United States)

    Kılıç, Önder; Belivermiş, Murat; Gözel, Furkan; Carvalho, Fernando P

    2014-09-15

    The Golden Horn is an estuary located in the center of İstanbul receiving freshwater discharges from two creeks and connecting to the Bosphorus Strait. Activity concentrations of natural and artificial radionuclides were determined in mussels (Mytilus galloprovincialis) and sediments from the Golden Horn sampled in February 2012. Mean activity concentrations of (137)Cs, (40)K, (226)Ra, (228)Ra, (210)Po and (210)Pb in the mussels were determined at 1.03±0.23, 389±41.6, 2.61±1.23, not detected (ND), 91.96±37.88 and 11.48±4.85 Bq kg(-1), respectively. In sediments, it was observed that (137)Cs, (40)K, (226)Ra, (228)Ra, (210)Po and (210)Pb activity concentrations inolden Horn were much lower than in mussels from other coastal regions and this was related to low plankton productivity and eutrophication of the Golden Horn. Copyright © 2014 Elsevier Ltd. All rights reserved.

  8. Minoan "Horns Of Concecration" Revisited: A Symbol Of Sun Worship In Palatial And Post-Palatial Crete?

    Science.gov (United States)

    Banou, Emilia

    In this article a previously proposed interpretation of Minoan 'horns of consecration' as a symbol of sun is reexamined. A clay model of 'horns of consecration' from the peak sanctuary of Petsophas, the results of astronomical research on Minoan peak sanctuaries, the idols of the so-called 'Goddess with Upraised Arms" and a clay model of 'horns of consecration' from the Mycenaean cemetery of Tanagra are put forward as evidence for a possible adoption - or a parallel development under the influence of adjacent cultures - by the Minoans (and by the Mycenaeans, at least after 1400 B.C.) of religious notions related to the Egyptian symbols of the 'mountain' and the 'horizon', both connected with the Sun in Egyptian cosmology and religion. It is concluded that the 'horns of consecration' may represent a practical device as well as an abstract symbol of the Sun, a symbol of catholic importance, which embraced many aspects of Minoan religious activities as represented on Minoan iconography.

  9. Ontwikkeling en validatie van computer vision technologie ten behoeve van een broccoli oogstrobot

    NARCIS (Netherlands)

    Blok, Pieter M.; Tielen, Antonius P.M.

    2018-01-01

    De selectieve en handmatige oogst van broccoli is arbeidsintensief en omvat ongeveer 35% van de totale productiekosten. Dit onderzoek is uitgevoerd om te bepalen of computer vision kan worden gebruikt om broccoli kronen te detecteren, als eerste stap in de ontwikkeling van een autonome selectieve

  10. Bachelorenquêtes 2013. Verslag van de bevindingen van recent afgestudeerden over hun opleiding

    NARCIS (Netherlands)

    Nielissen, Gé; Münstermann, Henk; Van den Munckhof, Rieny; Schlusmans, Kathleen

    2018-01-01

    De OU heeft vanaf haar oprichting veel aandacht besteed aan de kwaliteit en innovatie van het onderwijs. Medewerkers van de OU zijn gericht op vernieuwing en verbetering van het onderwijs, wat tot uitdrukking komt in de vele vernieuwingsinitiatieven die de afgelopen jaren hebben plaatsgevonden. De

  11. Siektes van peroksisome - 'n oorsig

    African Journals Online (AJOL)

    (x 14 SOO). Peroksisoomsiektes2. ,3,5.6. Ongeveer 12 genetiese siektes wat as gevolg van foute in die ontwikkeling of in die samestelling van peroksisome antstaan, is reeds beskryf. Volgens die omvang van die biogenetiese fout en die graad van verlies aan peroksisoomfunksies word hierdie sindrome in 3 groepe.

  12. Implementatie van EU-handhavingsvoorschriften

    NARCIS (Netherlands)

    Adriaanse, P.C.; Barkhuysen, T.; Boswijk, P.; Habib, K.; Kruif, C. de; Luchtman, M.J.J.P.; Ouden, W. den; Prechal, A.; Steunenberg, B.; Vervaele, J.A.E.; Voermans, W.J.M.; Vries, S.A. de; Widdershoven, R.J.G.M.

    2008-01-01

    Na een verkennend onderzoek op twaalf beleidsterreinen naar aard, wijze en variatie van de EU/EG-beïnvloeding van nationale handhaving, zijn aan de hand van ‘beïnvloedingsscores’ acht beleidsterreinen geselecteerd voor nadere analyse. In het onderzoek staan de volgende vragen centraal:Hoe is de

  13. Prestatiemeting ten tijde van economische crisis: de aanpak van DSM

    NARCIS (Netherlands)

    van Rinsum, M.; den Dekker, R.; Maas, V.

    2011-01-01

    Deze studie besteedt aandacht aan de gevolgen van de financiële crisis voor het prestatiemeetsysteem van een onderneming. Vanwege de financiële crisis hebben veel ondernemingen naast langetermijndoelstellingen ook een aantal kortetermijndoelstellingen geformuleerd die betrekking hebben op hun

  14. Invloed van waterconditioners en hulpstoffen op de effectiviteit van gewasbeschermingsmiddelen

    NARCIS (Netherlands)

    Zeeland, van M.G.

    2007-01-01

    In 2005 heeft de gebruikerscommissie naar aanleiding van de literatuurstudie over hulpstoffen drie aanbevelingen voor verder onderzoek geformuleerd. In 2006 zijn twee daarvan in onderzoek genomen, namelijk: wordt door toevoegen van waterconditioners (Easi-mix, Intake, X-change) aan hard water de

  15. AA, inner conductor of a magnetic horn

    CERN Multimedia

    CERN PhotoLab

    1981-01-01

    At the start-up of the AA and during its initial operation, magnetic horns focused the antiprotons emanating from the production target. These "current-sheet lenses" had a thin inner conductor (for minimum absorption of antiprotons), machined from aluminium to wall thicknesses of 0.7 or 1 mm. The half-sine pulses rose to 150 kA in 8 microsec. The angular acceptance was 50 mrad.

  16. Opname van nicotine door kippen en overdracht naar eieren bij toepassing van nicotine tegen bloedluis

    NARCIS (Netherlands)

    Traag, W.A.; Rijk, de T.C.; Zomer, P.; Vos Van Avezathe, A.; Kan, C.A.; Zeilmaker, M.; Hoogenboom, L.A.P.

    2005-01-01

    Uit onderzoek van de AID blijkt nicotine gebruikt te worden voor de bestrijding van bloedluis bij kippen. Dit levert mogelijk gezondheidsrisico's op voor de consument van het kippenvlees of de eieren. Omdat niet duidelijk is of het nicotine na de bestrijding van bloedluis in het vlees of eieren

  17. Anticoagulant rodenticides in red-tailed hawks, Buteo jamaicensis, and great horned owls, Bubo virginianus, from New Jersey, USA, 2008-2010.

    Science.gov (United States)

    Stansley, William; Cummings, Margaret; Vudathala, Daljit; Murphy, Lisa A

    2014-01-01

    Liver samples from red-tailed hawks (Buteo jamaicensis) and great horned owls (Bubo virginianus) were analyzed for anticoagulant rodenticides. Residues of one or more second generation anticoagulant rodenticides (SGARs) were detected in 81 % of red-tailed hawks and 82 % of great horned owls. The most frequently detected SGAR was brodifacoum, which was detected in 76 % of red-tailed hawks and 73 % of great horned owls. Bromadiolone was detected in 20 % of red-tailed hawks and 27 % of great horned owls. Difenacoum was detected in one great horned owl. No other ARs were detected. There were no significant differences between species in the frequency of detection or concentration of brodifacoum or bromadiolone. There was a marginally significant difference (p = 0.0497) between total SGAR residues in red-tailed hawks (0.117 mg/kg) and great horned owls (0.070 mg/kg). There were no seasonal differences in the frequency of detection or concentration of brodifacoum in red-tailed hawks. The data suggest that SGARs pose a significant risk of poisoning to predatory birds in New Jersey.

  18. De syntaxis van de Italiaanse preposities

    NARCIS (Netherlands)

    Boer, M.G. de

    2010-01-01

    SAMENVATTING In dit hoofdstuk wordt een inventaris opgesteld van de Italiaanse preposities die voorkomen in een corpus bestaande uit de romans La Ciociara van Moravia en Il Gattopardo van Tomasi di Lampedusa. Achtergrond voor de herkenning van preposities is de Extended Standard Theory van de

  19. Die skrifbeskouing van feministiese teoloë, in die besonder dié van Fiorenza, Brenner en Van Dijk-Hemmes – beoordeel in die lig van die gereformeerde teologie

    Directory of Open Access Journals (Sweden)

    Alta E. Swart

    2013-10-01

    Full Text Available Dit wil voorkom asof die feministiese Skrifbeskouing op die beginsel van selektiewe Skrifgesag berus. Dit beteken dat slegs dié dele in die Bybel wat met die feministiese ideologie ooreenstem, as gesaghebbend aanvaar word. Dit is veral die sogenaamde androsentriese taalgebruik wat dit vir aanhangers van hierdie benadering moeilik maak om die hele Skrif as gesaghebbend te erken. Hermeneuties vertoon hierdie benadering groot ooreenkomste met die Postmodernisme, waarin geen vaste reëls bestaan om die betekenis van tekste te bepaal nie. Gesien in die lig van die gereformeerde teologie, soos veranker in die Woord en belydenisskrifte, vertoon die feministiese teologie ernstige leemtes. Die bydraes (Skrifbeskouing van drie prominente feministiese teoloë – Fiorenza, Brenner en Van Dijk-Hemmes – word onder die loep geneem en teologies-krities geëvalueer ten einde hierdie leemtes uit te wys. It appears that the feminist view of Scripture is based on the principle of selective authority of the Scriptures, which means that only the parts of the Bible corresponding with the feminist ideology are accepted as authoritative. The use of androcentric language, in particular, makes it difficult for followers of feminism to accept the whole Bible as authoritative. Hermeneutically, their approach resembles Postmodernism, interpreting without any rules. Viewed from the paradigm of the reformed theology, which is anchored in Scripture and the articles of faith, feminist theology shows serious shortfalls. The contributions of three prominent feminist theologians – Fiorenza, Brenner and Van Dijk-Hemmes – are studied closely and evaluated critically in the light of the reformed theology, to underline these shortfalls.

  20. Onderzoek naar het voorkomen van vijf sulfonamiden en Dapson in nieren van Nederlandse slachtvarkens

    OpenAIRE

    Vaessen HAMG; Kamp CG van de

    1987-01-01

    Onderzocht zijn 208 monsters varkensnier op voorkomen (HPTLC) en gehalte (HPLC) van sulfanilamide, sulfadimidine, sulfadoxine, sulfadiazine, sulfaquinoxaline en Dapson. De monsters waren afkomstig van slachthuizen gelegen in de zes veterinaire Inspectiegebieden. Uit het HPTLC onderzoek op voorkomen kwamen 8 monsters die kwantitatief werden onderzocht m.b.v. HPLC. Drie monsters bleken < 0,02 mg/kg sulfadimidine te bevatten, het sulfadimidinegehalte van de vijf andere monsters varieerde van ...

  1. Electroacupuncture reduces the evoked responses of the spinal dorsal horn neurons in ankle-sprained rats

    Science.gov (United States)

    Kim, Jae Hyo; Kim, Hee Young; Chung, Kyungsoon

    2011-01-01

    Acupuncture is shown to be effective in producing analgesia in ankle sprain pain in humans and animals. To examine the underlying mechanisms of the acupuncture-induced analgesia, the effects of electroacupuncture (EA) on weight-bearing forces (WBR) of the affected foot and dorsal horn neuron activities were examined in a rat model of ankle sprain. Ankle sprain was induced manually by overextending ligaments of the left ankle in the rat. Dorsal horn neuron responses to ankle movements or compression were recorded from the lumbar spinal cord using an in vivo extracellular single unit recording setup 1 day after ankle sprain. EA was applied to the SI-6 acupoint on the right forelimb (contralateral to the sprained ankle) by trains of electrical pulses (10 Hz, 1-ms pulse width, 2-mA intensity) for 30 min. After EA, WBR of the sprained foot significantly recovered and dorsal horn neuron activities were significantly suppressed in ankle-sprained rats. However, EA produced no effect in normal rats. The inhibitory effect of EA on hyperactivities of dorsal horn neurons of ankle-sprained rats was blocked by the α-adrenoceptor antagonist phentolamine (5 mg/kg ip) but not by the opioid receptor antagonist naltrexone (10 mg/kg ip). These data suggest that EA-induced analgesia in ankle sprain pain is mediated mainly by suppressing dorsal horn neuron activities through α-adrenergic descending inhibitory systems at the spinal level. PMID:21389301

  2. Differences on Six Horn Abilities for 14 Age Groups between 15-16 and 75-94 Years.

    Science.gov (United States)

    Kaufman, Alan S.; And Others

    1996-01-01

    Six abilities derived from the fluid and crystallized intelligence theory of J. L. Horn were studied with 1,193 individuals in age groups between 15 and 94 years. Results supported Horn's classification of crystallized and quantitative as maintained abilities and of fluid and broad visualization as vulnerable abilities. (SLD)

  3. De geschiedenis van de keppel : van Borsalino hoed tot Spiderman keppel

    NARCIS (Netherlands)

    Ottenheijm, H.L.M.|info:eu-repo/dai/nl/164045775

    2017-01-01

    Keppels zijn er in alle soorten en maten. Na de Tweede Wereldoorlog werden ze hét symbool van het jodendom. Religiewetenschapper Eric Ottenheijm beschrijft de ontwikkelingen van de joodse hoofdbedekking.

  4. De invloed van bodemreiniging op de biologische beschikbaarheid van metalen

    NARCIS (Netherlands)

    Adema DMM*; Boer JLM de; Gestel CAM van; Jong P de*

    1987-01-01

    Er werd onderzoek uitgevoerd met als doel het uitlooggedrag en de biologische beschikbaarheid van metalen in verontreinigde gronden voor en na reiniging te bepalen. Dit (deel)rapport beschrijft de resultaten van het onderzoek naar de biologische beschikbaarheid. Op zes locaties in Nederland

  5. Hoge resolutie typering van Coxiella burnetii

    NARCIS (Netherlands)

    Janse, I.; Bossers, A.; Roest, H.I.J.; Rotterdam, van B.

    2011-01-01

    Dit rapport beschrijft het onderzoek wat uitgevoerd is in het kader van het project ‘Hoge Resolutie Typering Coxiella burnetii’’. Het doel van dit project was om de genoomsequenties van een aantal Nederlandse isolaten van de bacterie Coxiella burnetii, de veroorzaker van Q-koorts, in kaart te

  6. Studentopinie als onderdeel van Cursuskwaliteit : Quickscan

    NARCIS (Netherlands)

    Elzinga, Hanny; Groenewoud, Jan; Ike, Paul; Loth, Betram; Reitsma, Sieuwke; Schotanus, Janke; Schuurman, Mieke; Steur, Jessica

    2015-01-01

    In het kader van dit onderzoek is een quickscan (15 vragen) opgesteld met als doel die informatie te verzamelen die nodig is om een eerste indicatie te krijgen van de kwaliteit van een cursus (vak). De quickscan is gebaseerd op literatuuronderzoek en best practices van de faculteiten van de

  7. Bepaling van 14C in afvalwater

    NARCIS (Netherlands)

    Hiemstra YS; Kwakman PJM; Nissan LN; Aldenkamp FJ; LSO

    1998-01-01

    In opdracht van de Hoofdinspectie Milieuhygiene van het ministerie van VROM heeft LSO een methode ontwikkeld om 14C in afvalwater van nucleaire installaties te bepalen. De methode meet organisch gebonden-14C en anorganisch-14C in de vorm van carbonaat (14CO32-) in afvalwater. Het rapport

  8. Per maand of per kWh?: beoordeling van de effecten van een ander tariefsysteem voor kleinverbruikers electriciteit

    NARCIS (Netherlands)

    Aalbers, R.F.A.; de Nooij, M.

    2006-01-01

    Dit rapport bepaalt de effecten van de invoering van een capaciteitstarief voor de kosten van het transport van elektriciteit voor kleinverbruikers. Centraal kenmerk van een capaciteitstarief is dat kleinverbruikers niet langer per afgenomen kWh, maar een vast bedrag per aansluiting betalen. In het

  9. Toepassing van finite difference- en finite element methoden voor het oplossen van een aantal stationaire grondwaterstromingsproblemen

    NARCIS (Netherlands)

    Wesseling, J.G.

    1977-01-01

    In dit verslag worden de oplossingsmethoden met de bijbehorende zelfontwikkelde FORTRAN computerprogramma's van de volgende stationaire grondwaterstromingsgevallen gegeven: - Analyse van de grondwaterstroming in een horizontaal vlak over een gedeelte van de Astense Aa, waar van plaats tot plaats

  10. Die gebruik van tegnologie vir die ontwikkeling van professionele karaktereienskappe of sagte vaardighede van onderwysers deur afstandsonderrig

    Directory of Open Access Journals (Sweden)

    Johanna G. Ferreira

    2016-02-01

    Full Text Available Die doel van hierdie artikel was om ondersoek in te stel na die mate waartoe tegnologie suksesvol gebruik kan word om onderwysstudente deur afstandsonderrig op te lei. Omdat die sogenaamde sagte vaardighede en meegaande karatereienskappe eie is aan professies soos dié van medici of ouditeure, was dit nodig om te bepaal of onderwys wel as ’n professie beskou kan word. Die literatuur bevestig dit egter en gevolglik word aanvaar dat onderwys ’n professie is met gepaardgaande ‘sagte vaardighede’ of karaktereienskappe wat eie aan die beroep is. Vir effektiewe onderwys is die verwerwing van sodanige sagte vaardighede noodsaaklik. Die sagte vaardighede in die onderwysprofessie is derhalwe ondersoek en bespreek om ’n idee te kry van wat hierdie vaardighede behels en hoe hulle deur onderwysstudente ontwikkel en toegeëien kan word. Ten slotte is voorstelle gemaak oor hoe tegnologie ingespan kan word om sagte vaardighede by voornemende onderwysers deur afstandsonderrig te vestig.

  11. Broeigedrag en -sukses van tuinduiwe

    Directory of Open Access Journals (Sweden)

    Pieter le Roux

    2013-02-01

    Full Text Available Broei-aktiwiteite van tuinduiwe (Columba livia in die Bloemfonteinse stadsgebied vind dwarsdeur die jaar plaas met ’n afname gedurende die laat somermaande wanneer seisoenale reënval in die streek ’n hoogtepunt bereik. Nesstrukture is relatief primitief en word gekenmerk deur ’n losse samestelling van nesmateriaal op opgehoopte, droë voëlmis. Broeisels van twee eiers is die mees algemene grootte en die eiers word gewoonlik binne twee dae ná mekaar gelê. Beide ouers is by die broeiproses van meer as twee weke betrokke, waartydens die eiers ’n progressiewe afname in massa ondergaan. Pas uitgebroeide neskuikens is met geel dons bedek en is grootliks hulpeloos. Egte vere begin eers ná die eerste week te voorskyn kom, en vanaf die derde week kan individue wankelrig rondbeweeg. Afgesien van die eerste paar dae na uitbroei, handhaaf neskuikens van seldsame enkeleier-broeisels deurgaans ’n laer liggaammassa as dié van normale broeisels. Die broeisukses van 247 broeipare vir hierdie studie is 34%. Eierverlies is hoër as die mortaliteitsyfer van neskuikens, en word veral deur klimaatsfaktore soos reënval geaffekteer. Predasie blyk die belangrikste faktor te wees wat die mortaliteitsyfer van neskuikens beïnvloed. Antagonistiese interaksie tussen krans- en tuinduiwe, asook moontlike intraspesie-aggressie, speel egter ook ’n beduidende rol.

  12. Decomposition by tree dimension in Horn clause verification

    DEFF Research Database (Denmark)

    Kafle, Bishoksan; Gallagher, John Patrick; Ganty, Pierre

    2015-01-01

    In this paper we investigate the use of the concept of tree dimension in Horn clause analysis and verification. The dimension of a tree is a measure of its non-linearity - for example a list of any length has dimension zero while a complete binary tree has dimension equal to its height. We apply ...

  13. Dutch Water Mining: Potentie van een zuiverend landschap van overvloed

    NARCIS (Netherlands)

    Os, van E.; Kruijs, A.; Bomas, B.; Poelman, M.; Pater, de M.; Bokhoven, van D.

    2012-01-01

    De blauwalg in het Volkerak - Zoommeer zorgt jaarlijks voor veel overlast. In de zomerperiode zijn giftig water en stank een hinderlijk fenomeen voor iedereen. Met de techniek Dutch Water Mining verdwijnt de overlast van blauwalgen. Voor de omliggende landbouwbedrijven ontstaat de zekerheid van een

  14. Barcode van DNA. Democratisering van de taxonomie door digitaal identificatiesysteem

    NARCIS (Netherlands)

    Bakker, F.T.

    2011-01-01

    Het herkennen van biologische soorten aan de hand van een gestandaardiseerde DNA-barcode heeft de laatste tijd een enorme vlucht genomen. Gedreven door aan de ene kant de biodiversiteitscrises en de mogelijke global change, en aan de andere kant zowel razendsnelle technologische vooruitgang als ook

  15. Die taak van akademiese geletterdheid/hede binne die konteks van ...

    African Journals Online (AJOL)

    Opsomming. Die vestiging van Akademiese Geletterdheid by tersiêre instansies in Suid-Afrika het gegroei uit die besef dat 'n goedontwikkelde akademiese taalvermoë essensieel is vir akademiese prestasie. Gepubliseerde literatuur getuig van die belangrike verskuiwings wat oor die afgelope aantal dekades plaasgevind ...

  16. Contractiemechanisme en elektrolythuishouding van het geïsoleerde, overlevende rattehart, mede in verband met de werking van insuline

    NARCIS (Netherlands)

    Meijler, F.L.; Offerijns, F.G.J.; Willebrands, A.F.; Groen, J.

    1959-01-01

    Het waarnemen van een effect van insuline op de contracties van het geïsoleerde, overlevende rattenhart was aanleiding om de fysische verrichtingen in samenhang van het gehalte aan water en elektrolyten van dit orgaan tot onderwerp van studie te maken. Daarbij werd een zo goed mogelijk aan de

  17. Die invloed van drie kruisbestuiwers op die saadinhoud van Minneola tangelo (Citrus parodist x C reticulata

    Directory of Open Access Journals (Sweden)

    H. J. Esterhuizen

    1991-07-01

    Full Text Available Die invloed van verskillende kruisbestuiwers (Clementine, Empress en Valencia op die gemiddelde saadinhoud van Minneo­la tangelo is ondersoek. Clementine en Empress as kruisbestuiwers het die grootste invloed op die gemiddelde saadinhoud van die vrugte gehad, terwyl dié van Valencia nie noemenswaardig was nie. Die gemiddelde saadinhoud van die vrugte het afgeneem met toename in afstand vanaf die kruisbestuiwer. Indien ’n beperking op die afstand tussen kultivar en kruisbestuiwer geplaas word, sal ’n groter persentasie vrugte aan uitvoerstandaarde ten opsigte van saadinhoud voldoen.

  18. 45-110 GHz Quad-Ridge Horn With Stable Gain and Symmetric Beam

    Science.gov (United States)

    Manafi, Sara; Al-Tarifi, Muhannad; Filipovic, Dejan S.

    2017-09-01

    A quad-ridge horn antenna with stabilized gain and minimum difference between Eand H-plane half-power beamwidths (HPBWs) is demonstrated for operation over 45-110 GHz bandwidth. Multistep flaring and corrugations on a finite ground plane are applied to obtain stable radiation patterns with 16-dBi minimum gain over the entire range. The computational studies are validated through measurements of a 3-D printed prototype using the direct metal laser sintering (DMLS) process. Accurate fabrication with achieved surface roughness of DMLS is a viable fabrication process for wideband horn antennas at millimeter-wave frequencies.

  19. Rapport van het onderzoek naar de kosten, verbonden aan het bewaren van consumptie-aardappelen

    NARCIS (Netherlands)

    Anonymous,

    1941-01-01

    Het doel van deit rapport is vast te stellen hoe het verloop van den prijs van consumptie-aardappelen gedurende den winter en het voorjaar moet zijn om de gemaakte kosten en het verlies aan product goed te maken.

  20. Three-dimensional distribution of sensory stimulation-evoked neuronal activity of spinal dorsal horn neurons analyzed by in vivo calcium imaging.

    Science.gov (United States)

    Nishida, Kazuhiko; Matsumura, Shinji; Taniguchi, Wataru; Uta, Daisuke; Furue, Hidemasa; Ito, Seiji

    2014-01-01

    The spinal dorsal horn comprises heterogeneous populations of interneurons and projection neurons, which form neuronal circuits crucial for processing of primary sensory information. Although electrophysiological analyses have uncovered sensory stimulation-evoked neuronal activity of various spinal dorsal horn neurons, monitoring these activities from large ensembles of neurons is needed to obtain a comprehensive view of the spinal dorsal horn circuitry. In the present study, we established in vivo calcium imaging of multiple spinal dorsal horn neurons by using a two-photon microscope and extracted three-dimensional neuronal activity maps of these neurons in response to cutaneous sensory stimulation. For calcium imaging, a fluorescence resonance energy transfer (FRET)-based calcium indicator protein, Yellow Cameleon, which is insensitive to motion artifacts of living animals was introduced into spinal dorsal horn neurons by in utero electroporation. In vivo calcium imaging following pinch, brush, and heat stimulation suggests that laminar distribution of sensory stimulation-evoked neuronal activity in the spinal dorsal horn largely corresponds to that of primary afferent inputs. In addition, cutaneous pinch stimulation elicited activities of neurons in the spinal cord at least until 2 spinal segments away from the central projection field of primary sensory neurons responsible for the stimulated skin point. These results provide a clue to understand neuronal processing of sensory information in the spinal dorsal horn.

  1. Three-dimensional distribution of sensory stimulation-evoked neuronal activity of spinal dorsal horn neurons analyzed by in vivo calcium imaging.

    Directory of Open Access Journals (Sweden)

    Kazuhiko Nishida

    Full Text Available The spinal dorsal horn comprises heterogeneous populations of interneurons and projection neurons, which form neuronal circuits crucial for processing of primary sensory information. Although electrophysiological analyses have uncovered sensory stimulation-evoked neuronal activity of various spinal dorsal horn neurons, monitoring these activities from large ensembles of neurons is needed to obtain a comprehensive view of the spinal dorsal horn circuitry. In the present study, we established in vivo calcium imaging of multiple spinal dorsal horn neurons by using a two-photon microscope and extracted three-dimensional neuronal activity maps of these neurons in response to cutaneous sensory stimulation. For calcium imaging, a fluorescence resonance energy transfer (FRET-based calcium indicator protein, Yellow Cameleon, which is insensitive to motion artifacts of living animals was introduced into spinal dorsal horn neurons by in utero electroporation. In vivo calcium imaging following pinch, brush, and heat stimulation suggests that laminar distribution of sensory stimulation-evoked neuronal activity in the spinal dorsal horn largely corresponds to that of primary afferent inputs. In addition, cutaneous pinch stimulation elicited activities of neurons in the spinal cord at least until 2 spinal segments away from the central projection field of primary sensory neurons responsible for the stimulated skin point. These results provide a clue to understand neuronal processing of sensory information in the spinal dorsal horn.

  2. Dynamisch cloudsourcen van bedrijfsprocessen, gebruik van business rules management bij transitie en exit van BPO uit de cloud

    NARCIS (Netherlands)

    Rudolf Liefers; Jeroen van Grondelle; Johan Versendaal

    2015-01-01

    Dit artikel beschrijft een onderzoek waarbij gekeken is naar mogelijkheden die Business Rules Management-concepten bieden bij het aanbieden van bedrijfsprocessen as a service via een cloud-dienst. BRM helpt bedrijven door het gestructureerd vastleggen van organisatorische keuzes en regels waaraan

  3. De vluchtige olie van enkele chemotypen van mentha suaveolens EHRH. en van hybriden met mentha longifolia (L.) HUDSON

    NARCIS (Netherlands)

    Hendriks, Hindrik

    1974-01-01

    De opvatting dat Mentha x piperita L. een bastaard zou zijn van Mentha spicata L. en Mentha aquatica L. werd nader besproken. Hierbij werd Mentha spicata beschouwd als een bastaard van Mentha longifolia (L.) HUDSON en Mentha suaveolens EHRH. ... Zie: Samenvatting.

  4. Die verband tussen lokus van beheer en die werks prestasie van swart bemarkers in die lewensversekeringsbedryf

    Directory of Open Access Journals (Sweden)

    E. L. Coetzer

    1997-06-01

    Full Text Available The relationship between locus of control and the work performance of black marketers in the life assurance industry. The aim of the study was to establish the relationship between locus of control and the work performance of black marketers in the life assurance industry. These constructs were selected by virtue of the lack of empirical research regarding the assumed relationship between them. The Locus of Control Scale of Schepers (1995 was used for measuring locus of control. Work performance was measured by the commission earned per month by the marketer, the number of policies generated by the marketer, as well as the percentage of lapsed policies. The relevant measurements were obtained in respect of a sample of 149 black marketing personnel. The results indicated a modest but statistically significant relationship between external locus of control and the work performance of black marketers. Opsomming Die doel van die studie was om die verband tussen lokus van beheer en die werksprestasie van swart bemarkers in die lewensversekeringsbedryf te bepaal. Hierdie konstrukte is gekies op grond van die gebrek aan empiriese navorsing rakende die veronderstelde verband tussen genoemde konstrukte. Die Lokus van Beheer-vraelys van Schepers (1995 is in die meting van lokus van beheer gebruik. Werksprestasie is aan die hand van kommissie per maand verdien, aantal polisse gegenereer deur 'n bemarker en die persentasie vervalde polisse, gemeet. Die tersaaklike metinge is verkry ten opsigte van 'n steekproef van 149 swart bemarkers. Die resultate toon 'n klein, dog statisties beduidende verband tussen eksterne lokus van beheer en die werksprestasie van swart bemarkers in die lewensversekeringsbedryf.

  5. Meteorological explanation of wake clouds at Horns Rev wind farm

    Energy Technology Data Exchange (ETDEWEB)

    Emeis, S. [Karlsruhe Institute of Technology (Germany). Inst. for Meteorology and Climate Research

    2010-08-15

    The occurrence of wake clouds at Horns Rev wind farm is explained as mixing fog. Mixing fog forms when two nearly saturated air masses with different temperature are mixed. Due to the non-linearity of the dependence of the saturation water vapour pressure on temperature, the mixed air mass is over-saturated and condensation sets in. On the day in February 2008, when the wake clouds were observed at Horns Rev, cold and very humid air was advected from the nearby land over the warmer North Sea and led to the formation of a shallow layer with sea smoke or fog close above the sea surface. The turbines mixed a much deeper layer and thus provoked the formation of cloud trails in the wakes of the turbines. (orig.)

  6. Toepassing van DIN-ICP-MS en scanning-scouting van B en Mo in grondwater, drinkwater en regenwater

    NARCIS (Netherlands)

    van den Velde-Koerts T; LAC

    1998-01-01

    Doel van dit onderzoek was het ontwikkelen van een bepalingsmethode voor boor (B) en molybdeen (Mo) met ICP-MS om een indruk te krijgen van de concentraties in grond-, drink- en regenwater van Nederland. Omdat B adsorbeert aan de wand van de meeste verstuiverkamers (memory-effect) werd een directe

  7. Evaluatie pilot toepassing van technieken op gebied van electronic monitoring binnen een penitentiaire inrichting

    NARCIS (Netherlands)

    Bekkers, R.N.A.; te Velde, R.; Segers, J.; Bilderbeek, R.

    2008-01-01

    Publicatienummer 2006.051-0713; Een evaluatie van een pilot inzake de toepassing van technieken op gebied van electronic monitoring binnen een penitentiaire inrichting. Wat zijn de gevolgen voor de veiligheid (incidenten, ontvluchtingen) en welk inzicht biedt een kosten-batenanalyse?

  8. Entrapment of the Temporal Horn as a Cause of Pure Wernicke Aphasia: Case Report.

    Science.gov (United States)

    Spallone, Aldo; Belvisi, Daniele; Marsili, Luca

    2015-07-01

    Entrapment of the temporal horn is an extremely rare pathologic condition occurring as a result of surgery for tumors, intraventricular infections, hemorrhage, or traumatic events involving the peritrigonal area. We report a case of a 58-year-old man who presented with pure Wernicke aphasia (never described before in the albeit rare cases of isolated temporal horn dilatation) that regressed completely following successful ventriculoperitoneal shunting. The relevant literature is also briefly reviewed.

  9. De metafoor van het washandje. Column

    Directory of Open Access Journals (Sweden)

    Yolan Koster-Dreese

    2007-03-01

    Full Text Available In hun artikel ‘Kwaliteit en Zorg’ van ruim tien jaar geleden stellen Van Houten en Prins (1995 dat de thans vigerende zorgtaal in meer algemene zin kan worden aangeduid als ‘zorg-Taylorisme’: een scientific management-benadering van zorg. Met de introductie van de ‘zorgmarkt’ is een benadering ontstaan die grote overeenkomsten vertoont met die scientific management-benadering uit het begin van de vorige eeuw, zo menen Van Houten en Prins.

  10. Verzuring van bodem en grondwater als gevolg van atmosferische depositie

    NARCIS (Netherlands)

    Hoeks, J.

    1983-01-01

    In het kader van de Tweede-Kamer-rapportage over verzuring door atmosferische depositie heeft het ICW een bijdrage geleverd aan het deelrapport over effecten op bodem en grondwater. Deze ICW-notitie is hier nu nader uitgewerkt, waarbij vooral aandacht wordt besteed aan de methode om effecten van

  11. Sedimentologische interpretatie van de afzettingen van de Nuenen-groep nabij Best

    NARCIS (Netherlands)

    Alphen; J.S.L.J.

    1984-01-01

    In het kader van het project "Variaties in fysisch-chemische bodemkarakteristieken" zijn twaalf boringen uit de Nuenen-groep bij Best beschreven. Uit deze beschrijvingen is de sedimentologische ontstaansgeschiedenis van de onderscheiden bodemlagen gereconstrueerd. Vijf pakketten

  12. Brief overview of the role of ICT in saving energy; Beknopt overzicht van de rol van ICT bij de besparing van energie

    Energy Technology Data Exchange (ETDEWEB)

    Wartena, C.

    2008-02-15

    10 percent energy saving can be realized in households, offices and trade by means of smart information and communication technology. The saving is realized by a range of innovative measures that lead to this percentage without loss of comfort. One example is the heating in houses and offices by means of 'intelligent' software based on behavioral patterns and weather forecasts and on energy efficient hardware. The wide application of smart ICT in society can lead to 5 percent energy saving, thus rendering the 6 percent energy reduction target of the Kyoto Protocol within arm's reach. [mk]. [Dutch] Het is mogelijk om in huishoudens, kantoren en handel minstens 10 procent van het energiegebruik te besparen door de inzet van slimme informatie- en communicatietechnologie. De besparing wordt bereikt door een scala aan vernieuwende maatregelen die, zonder verlies van comfort, bij elkaar tot dit percentage leiden. Een voorbeeld is het door 'intelligente' software regelen van verwarming in huizen en kantoren afhankelijk van gedragspatronen en weersvoorspellingen en aan energiezuinigere hardware. De brede toepassing van slimme ICT in de samenleving kan ertoe leiden dat ongeveer 5 procent energie kan worden bespaard en dat de 6 procent energiereductie waartoe Nederland zich in het kader van het Kyoto-protocol heeft verplicht, binnen handbereik komt.

  13. Afbouw van het Wsw-bestand: update 2011

    NARCIS (Netherlands)

    Berden, C.; Tempelman, C.

    2012-01-01

    In opdracht van het ministerie van Sociale Zaken en Werkgelegenheid heeft SEO Economisch Onderzoek recent onderzoek gedaan naar bouwstenen voor verdeelsleutels van het ongebundelde participatiebudget (Tempelman et al., 2012). Een onderdeel van dit onderzoek vormde het voorspellen van de afbouw van

  14. Effecten van bosbegrazing op het humusprofiel van arme zandgronden onder naaldbos

    NARCIS (Netherlands)

    Kemmers, R.H.; Mekkink, P.; Smit, A.; Sevink, J.

    1996-01-01

    In het veld zijn de effecten van bosbegrazing op strooiselvoorraden onderzocht. Biomassa, pH, organische-stofgehalte, elektrisch geleidingsvermogen, elementenvoorraden en stikstofmineralisatie van strooisellagen werden gemeten na nul, twee en vijf jaar begrazing. De ondergrondse en bovengrondse

  15. Die hermeneutiek van gereformeerde kerkreg

    Directory of Open Access Journals (Sweden)

    Andries le Roux du Plooy

    2012-10-01

    Full Text Available Die artikel het op die belangrikheid en noodsaaklikheid van ‘n hermeneutiek vir die gereformeerde kerkreg gefokus. Die kerkregtelike dokument wat besonderlik ter sake was, is die kerkorde van die Gereformeerde kerke in Suid-Afrika, met sy besondere band met die Dordtse kerkorde van 1618 en 1619. Agtereenvolgens is aandag gegee aan die volgende aspekte soos (1 die eiesoortige aard van ‘n kerkorde as ‘n teologiese dokument en teks, in onderskeiding van regsdokumente; (2 die aard van die hermeneutiek van kerkreg; (3 enkele teorieë oor die interpretasie of uitleg van tekste, veral regstekste en (4 normatiewe vooronderstellings en reëls vir die interpretasie en verstaan van die teks en artikels van die kerkorde asook besluite van kerklike vergaderinge. Die gevolgtrekking was dat weinig indringende navorsing gedoen is oor die saak van hermeneutiek vir kerkreg, hoewel dit noodsaaklik is. Duidelike hermeneutiese reëls is gesuggereer en verduidelik, wat sou kon meehelp dat kerke en kerklike vergaderinge die artikels van die kerkorde asook besluite en reglemente wat daarop berus het, kan interpreteer en toepas. The hermeneutics of reformed church polity. The article focused on the importance and urgency of a design for reformed hermeneutics on church polity. The Church Order referred to in the article is the Church Order of the Reformed Churches in South Africa, which are closely related to the Church Order of Dordt of 1618 and 1619. The following aspects received attention namely (1  the unique character of a Church Order, in comparison to and distinguished from legal documents and statutes; (2 the character and nature of hermeneutics of church polity; (3 theories of interpretation in the common law tradition and their relevance to church polity and (4 normative presuppositions and marks for the interpretation and understanding of the text and articles of the Church Order, as well as the resolutions of church assemblies. It was found that

  16. Die nabyheid van die Koninkryk

    Directory of Open Access Journals (Sweden)

    W.J. Snyman

    1963-03-01

    Full Text Available Vanweë die belangrikheid daarvan volg hier ’n breër bespreking van die proefskrif van dr. Tjaart van der Walt oor die nabyheid van die Koninkryk as wat in ’n gewone resensie kan geskied. Die vraagstuk wat onder oë gesien word is so oud as die kerk en die teologie, soms minder en soms meer op die voorgrond. Tans kan gesê word, staan dit in die middelpunt. Daarby is dit nie maar ’n akademiese vraagstuk nie, maar ’n vraagstuk waarvoor elke nadenkende leser van die Skrif te staan kom.

  17. Esperanto: een taal van mij, een taal om van te houden = Esperanto: lingvo malfremda, lingvo amida

    NARCIS (Netherlands)

    Jansen, W.

    2010-01-01

    Onderstaande tekst vormt de artikelversie van mijn op 4 september 2009 gehouden oratie bij de aanvaarding van het bijzonder hoogleraarschap in de interlinguïstiek en het Esperanto aan de Universiteit van Amsterdam (Jansen, 2009). Ten opzichte van de oorspronkelijke oratie is de nu volgende tekst op

  18. Resultaten van de proeftuinen van PACT : inclusie door interprofessionele samenwerking in kindvoorzieningen 0-6 jaar

    NARCIS (Netherlands)

    Doornenbal, Jeannette; Balledux, Marielle; Fukkink, Ruben; Spoelstra, Jolanda; van Verseveld, Marloes; van Yperen, Tom

    2018-01-01

    In deze bijdrage worden de onderzoeksresultaten gepresenteerd van de ontwikkelingen in de PACT-proeftuinen om door middel van interprofessionele samenwerking tussen onderwijs, kinderopvang en zorg inclusie van elk kind te realiseren.

  19. Brain, memory and development : the imprint of Gabriel Horn

    NARCIS (Netherlands)

    Bolhuis, Johan J; Brown, Malcolm W; Johnson, Mark H

    2015-01-01

    This special issue of Neuroscience & Biobehavioral Reviews is dedicated to the memory of Sir Gabriel Horn, who died on 2nd August 2012. In his impressive career that spanned more than 50 years (Bolhuis and Johnson, 2012; Brown, 2013), Horn’s contributions to cognitive neuroscience consistently

  20. Calibration of the SH134-20 Standard Gain Horn

    DEFF Research Database (Denmark)

    Pivnenko, Sergey; Breinbjerg, Olav

    This report documents the measurement of the linearly polarized SH134-20 Standard Gain Horn. The measurement comprises on-axis gain, on-axis polarization characteristics, and reflection coefficient at 111 frequencies in the frequency range from 22-33 GHz. The measurement was carried out at the DTU...

  1. Bevordering van transformerende leer: Die skryf van ’n reflektiewe joernaal in die Natuurwetenskappe

    Directory of Open Access Journals (Sweden)

    Erna R. du Toit

    2012-03-01

    Full Text Available Die doel van die artikel is om aan te toon hoe die skryf van ’n reflektiewe joernaal in die Natuurwetenskappe die perspektiewe en denke van onderwysstudente kan transformeer en/of leer kan bevorder. Die studie maak voorspraak vir die gebruik van ’n reflektiewe joernaal as ’n instrument vir studente om betekenis te gee aan die leeromgewing vanuit verskillende perspektiewe deur te leer in praktyk. ’n Kwalitatiewe navorsingsmetode is gevolg om die inskrywings in ’n joernaal te analiseer aan die hand van bepaalde indikatore. Die bevindinge toon dat die meeste studente na die praktykervaring positief was en sommiges het tot ander perspektiewe vanweë hul ervaring gekom.

  2. Effectiviteit van markting management support systemen

    OpenAIRE

    Bruggen, Gerrit; Smidts, Ale; Wierenga, Berend

    1994-01-01

    textabstractVerhoogt het gebruik van marketing management support systemen de kwaliteit van marketingbeslissingen? En zo ja, onder welke omstandigheden? Aan de hand van een experimenteel laboratoriumonderzoek met het simulatiespel MARKSTRATonder 80 marketing managers en 160 studenten, kan de eerste vraag positief worden beantwoord. Omstandigheden als tijdsdruk, ervaring in het nemen van marketingbeslissingen en de analytische capaciteiten van de gebruikers vormen een belangrijk aandachtspunt ...

  3. Extensivering van de begeleiding door het inzetten van peer- en self-assessment in IMTO

    NARCIS (Netherlands)

    Joosten-ten Brinke, Desirée

    2011-01-01

    Joosten-ten Brinke, D. (2011). Extensivering van de begeleiding door het inzetten van peer- en self-Assessment in IMTO. In E. Bakker, W. Giesbertz, J. von Grumbkow, & T. Houtmans (Red.), Ontwikkeling van de onderzoekscompetentie aan de Open Universiteit (pp. 121-128). Heerlen: Open universiteit.

  4. die rol van die unieverdedigingsmag in die onderdrukking van die

    African Journals Online (AJOL)

    agv regeringsoptrede nie.39. Siotsom. In die geskiedenis van die Unieverdedigings- mag word die gebeure random die 1914-staking oorskadu deur die Rebellie en Suid-Afrika se deelname aan die Eerste Wereldoorlog. Tog was dit 'n belangrike mylpaal in die geskiedenis van die organisasie, omdat dit sy eerste optrede ...

  5. Compost duurzaam ingezet. De Compost Scorekaarten: een instrument voor het afwegen van de waarde van compost

    OpenAIRE

    Schrik, Yannick; Koopmans, Chris

    2015-01-01

    Het duurzame gebruik van een reststof zoals compost hangt sterk samen met de waarde die de compost heeft bij toepassing. Deze publicatie geeft via heldere Compost Score Kaarten inzicht in het vinden van de juiste compostsoort voor het gewenste doel. Of het nu gaat om organischestofvoorziening, verbetering van de bodemstructuur of de nutriëntenvoorziening van gewassen: een bewuste keuze voor de compostsoort en –kwaliteit draagt bij aan een duurzame inzet en duurzaam hergebruik van reststoffen.

  6. van der Waals

    Indian Academy of Sciences (India)

    in the world without learning the 'van der Waals equation'. ... theory”. Those days, however, molecules were assumed to be point masses occupying no .... was 36 to obtain his PhD due to the prevailing social conditions. van der Waals died in ...

  7. Dimensies van onafhankelijkheid: de Surinaamse ervaring

    Directory of Open Access Journals (Sweden)

    P. Meel

    2002-01-01

    Full Text Available J. Trommelen, Dwars door Suriname. Drie Guyana's in een tegendraads portret H. Breeveld, Jopie Pengel 1916-1970. Leven en werk van een Surinaamse politicus J. Jansen van Galen, J.A. Jansen, Hetenachtsdroom. Suriname, erfenis van de slavernij J. Jansen van Galen, Het Suriname-syndroom. De PvdA tussen Den Haag en Paramaribo M. van Kessel, H. van der Vlist, Tussen twee huizen. Het leven van de Surinaamse Nederlander Jan Veldema G. Oostindie, I. Klinkers, Knellende koninkrijksbanden. Het Nederlandse dekolonisatiebeleid in de Caraïben, 1940-2000, I, 1940-1954, II, 1954-1975, III, 1975-2000 R. Tjin, C. Buma, J. Reichert, Suriname onafhankelijk. 25 November 1975. Srefidensi sranan = Suriname free. 25 November 1975

  8. Magnesium productie in de Eemsmond, De milieueffecten van magnesiumproductie in de Eemsmond en de milieuprestaties van magnesium in auto's

    NARCIS (Netherlands)

    Sambeek, E.J.W. van

    1999-01-01

    Naar aanleiding van de dreigende sluiting van de primiaire aluminiumindustrie in Delfzijl (Aldel) is het Aldel convenant gevormd. Het doel van het convenant is het versterken van de economische structuur en het vergroten van de werkgelegenheid in en rond Delfzijl, opdat het verlies van

  9. Inventarisatie van het voorkomen van bestrijdingsmiddelen in het diepe grondwater in Nederland in 1992

    NARCIS (Netherlands)

    Boland J; van den Berg R; van der Linden AMA; Heusinkveld HAG; Baumann RA; LBG; LOC

    1994-01-01

    In 1991/1992 is een scanning uitgevoerd van residuen van bestrijdingsmid- delen in het grondwater van 5 tot 26 m beneden maaiveld in het Landelijk Meetnet Grondwaterkwaliteit. 41 Mengmonsters, samengesteld uit 2, 3 of 4 individuele monsters, zijn geanalyseerd en 15 individuele monsters. Met GC/MS

  10. Vergelijking van HPLC-methoden voor de bepaling van pentachloorfenol in houtmonsters

    NARCIS (Netherlands)

    Goewie; C.E.; Berkhoff; C.J.

    1986-01-01

    Een vergelijkend onderzoek is verricht naar de bruikbaarheid van verschillende detectiemethoden in combinatie met HPLC voor de analyse van pentachloorfenol in hout. In het onderzoek wordt RP-HPLC met UK en amperometrische detectie beschreven, evenals NP-HPLC met elektroneninvangdetectie. In

  11. Canards Existence in FitzHugh-Nagumo and Hodgkin-Huxley Neuronal Models

    Directory of Open Access Journals (Sweden)

    Jean-Marc Ginoux

    2015-01-01

    Full Text Available In a previous paper we have proposed a new method for proving the existence of “canard solutions” for three- and four-dimensional singularly perturbed systems with only one fast variable which improves the methods used until now. The aim of this work is to extend this method to the case of four-dimensional singularly perturbed systems with two slow and two fast variables. This method enables stating a unique generic condition for the existence of “canard solutions” for such four-dimensional singularly perturbed systems which is based on the stability of folded singularities (pseudo singular points in this case of the normalized slow dynamics deduced from a well-known property of linear algebra. This unique generic condition is identical to that provided in previous works. Application of this method to the famous coupled FitzHugh-Nagumo equations and to the Hodgkin-Huxley model enables showing the existence of “canard solutions” in such systems.

  12. Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report 2003

    Energy Technology Data Exchange (ETDEWEB)

    Leonhard, S.B.; Pedersen, John

    2004-05-15

    Elsam and Eltra built the offshore demonstration wind farm at Horns Rev in the North Sea. Elsam is the owner and is responsible for the operation of the wind farm. Eltra is responsible for the connection of the wind farm to the national onshore grid. In the summer months of 2002, Elsam constructed the world's largest offshore wind farm off the Danish west coast. The wind farm is sited 14-20 km into the North Sea, west of Blaevands Huk. The first wind turbine was erected in May 2002 and the last wind turbine tower of a total of 80 was in place by August 2002. The construction work was completed with the last connecting cables sluiced down in September 2002. All the wind turbines were in production by December 2002. The expected impact of the wind farm will primarily be an alternation of habitats due to the introduction of hard bottom substrates as wind turbine towers and scour protections. A continuous development in the epifouling communities will be expected together with an introduction of new or alien species in the area. The indigenous benthic community in the area of Horns Rev can be characterised by infauna species belonging to the Goniadella-Spisula community. This community is typical of sandbanks in the North Sea area, although communities in such areas are very variable and site-specific. Character species used as indicators for environmental changes in the Horns Rev area are the bristle worms Goniadella bobretzkii, Ophelia borealis, Psione remota and Orbinia sertulata and the mussels Goodallia triangularis and Spisula solida. In connection with the implementation of the monitoring programme concerning the ecological impact of the introduction of hard substrate related to the Horns Rev Wind Farm, surveys on hard bottom substrate was conducted in March 2003 and in September 2003. This report describes the first year results of surveys on hard substrate after the completion of the offshore wind farm at Horns Rev. (au)

  13. Large acceptance magnetic focussing horns for production of a high intensity narrow band neutrino beam at the AGS

    Energy Technology Data Exchange (ETDEWEB)

    Carroll, A.; Chimienti, L.; Leonhardt, W.; Monaghan, R.; Ryan, G.; Sandberg, J.; Sims, W.; Smith, G.; Stillman, P.; Thorwarth, H.

    1985-01-01

    A set of two large acceptance (20 to 140 mrad) horns have been designed and built to form a parallel beam of 3 GeV/c pions and kaons for the production of an intense, dichromatic neutrino beam. A set of beam plugs and collimators determined the momentum of the particles which pass through the horns. The cooling and maintenance of the horns and target was a particular concern since they were operated with an incident intensity of over 10/sup 13/ proton/sec. These systems were designed for simplicity, reliability, and easy replacement.

  14. Large acceptance magnetic focussing horns for production of a high intensity narrow band neutrino beam at the AGS

    International Nuclear Information System (INIS)

    Carroll, A.; Chimienti, L.; Leonhardt, W.

    1985-01-01

    A set of two large acceptance (20 to 140 mrad) horns have been designed and built to form a parallel beam of 3 GeV/c pions and kaons for the production of an intense, dichromatic neutrino beam. A set of beam plugs and collimators determined the momentum of the particles which pass through the horns. The cooling and maintenance of the horns and target was a particular concern since they were operated with an incident intensity of over 10 13 proton/sec. These systems were designed for simplicity, reliability, and easy replacement

  15. Van Varroa jacobsoni naar Varroa destructor

    NARCIS (Netherlands)

    Calis, Johan

    2002-01-01

    Resultaten van onderzoek naar de verschillende voortplantingsstrategieën van Varroa jacobsoni en Varroa destructor in respectievelijk de Oosterse honigbij (Apis cerana) en de Westerse honingbij (Apis mellifera). Het hygiënisch gedrag van de Oosterse honingbij (leegruimen van aangetaste

  16. Tekenen en vasseren : Het bedrijf van Jan Peter van Baurscheit (1699 - 1768) en de architectuur in het tweede kwart van de achttiende eeuw

    NARCIS (Netherlands)

    Breedveldt Boer, I.M.

    2003-01-01

    Jan Peter van Baurscheit the Younger (1699 - 1768) was educated to become a sculptor and an architect in the studio of his father, J.P. van Baurscheit the elder (1669 - 1728), who owned one of the leading sculptor studios in Antwerpen. Van Baurscheit continued the bussiness after his father's death

  17. On the equivalence of the Clauser–Horne and Eberhard inequality based tests

    International Nuclear Information System (INIS)

    Khrennikov, Andrei; Ramelow, Sven; Ursin, Rupert; Wittmann, Bernhard; Kofler, Johannes; Basieva, Irina

    2014-01-01

    Recently, the results of the first experimental test for entangled photons closing the detection loophole (also referred to as the fair sampling loophole) were published (Vienna, 2013). From the theoretical viewpoint the main distinguishing feature of this long-aspired to experiment was that the Eberhard inequality was used. Almost simultaneously another experiment closing this loophole was performed (Urbana-Champaign, 2013) and it was based on the Clauser–Horne inequality (for probabilities). The aim of this note is to analyze the mathematical and experimental equivalence of tests based on the Eberhard inequality and various forms of the Clauser–Horne inequality. The structure of the mathematical equivalence is nontrivial. In particular, it is necessary to distinguish between algebraic and statistical equivalence. Although the tests based on these inequalities are algebraically equivalent, they need not be equivalent statistically, i.e., theoretically the level of statistical significance can drop under transition from one test to another (at least for finite samples). Nevertheless, the data collected in the Vienna test implies not only a statistically significant violation of the Eberhard inequality, but also of the Clauser–Horne inequality (in the ratio-rate form): for both a violation >60σ. (paper)

  18. Die nut van kriging in gravitasie-opnames

    Directory of Open Access Journals (Sweden)

    G. J. van Tonder

    1985-03-01

    Full Text Available Ondersoek is ingestel na die gebruik van kriging as hulpmiddel by die gravitasiemetode vir die opsporing van verweerde sones in die dolomitiese gebiede van Suid-Afrika. Na ’n kort bespreking van die basiese beginsels van kriging, word die metode toegepas op die Bouguer-anomaliewaardes, soos waargeneem op ’n deel van die Zuurbekomkompartement. Daar word getoon dat die aantal waarnemingspunte met tot soveel as 90 persent verminder kan word, sonder ’n noemenswaardige verlies van akkuraatheid in die bepaling van die geskatte volumes verweerde dolomiet.

  19. Bestrijdingsmiddelen en teelten; een verkenning van de risico's van het gebruik van bestrijdingsmiddelen voor waterorganismen binnen enkele landbouwkundige teelten

    NARCIS (Netherlands)

    Deneer, J.W.

    2003-01-01

    Voor de vijftien landbouwkundige gewassen met het grootste areaal in Nederland is geonventarisseerd tot welke toxische belasting de driftbelasting met bestrijdingsmiddelen zal leiden. Slechts bij twee van de vijftien onderzochte teelten bleeft de belasting van algen, kreeftachtigen en vissen beneden

  20. [The unicorn and the unicorn horn among apothecaries and physicians].

    Science.gov (United States)

    Fischer, Louis-Paul; Cossu Ferra Fischer, Véronique

    2011-01-01

    In the 4th century A.D. the first unicorn was shown as a little horse with a twisted horn and was completely different from the Oriental one described by Marco Polo. The new unicorn appeared during the 4th century A.D. in Alexandria. This animal enamoured of purity was used as a Christian symbol of purity and sacrifice and adornment of churches like in Lyons in the 13th century. In the 15th & 17th centuries the unicorn was found again in famous tapestries like La Dame B la Licorne as it meant courage, speed and purity. Since the 6th century the powder of unicorn horn was used as a medicine or a drug against poisoning. Depictions of unicorn can be found in chemist's signs, engravings or paintings until the 19th century.

  1. De democratische kwaliteit van gemeenteraadsverkiezingen’

    NARCIS (Netherlands)

    Boogers, Marcel; Reynaert, Herwig

    2018-01-01

    Gemeenteraadsverkiezingen horen ertoe bij te dragen dat het lokale beleid overeenkomt met de beleidsvoorkeuren van inwoners. Dat is immers de democratische functie van verkiezingen. De gedachte hierachter is dat als kiezers zich uitspreken over de beleidsprestaties en verkiezingsbeloften van

  2. Evaluatie van de Alcohol Verkeer Cursussen

    NARCIS (Netherlands)

    Leuw, Ed.; Brouwers, M.

    1992-01-01

    In dit rapport wordt een overzicht gegeven van de opzet, doelstellingen en uitkomsten van het evaluatie-onderzoek dat is verbonden aan de landelijke invoering van Alcohol Verkeer Cursussen (AVC's). Het verslag geeft een globaal en beschrijvend beeld van de belangrijkste kenmerken (deelname en

  3. Biobrood van eigen bodem: een ketenproject

    NARCIS (Netherlands)

    Postma, R.; Bakker, den A.; Derksen, V.; Kruiger, K.; Maassen, J.; Osman, A.M.; Schepers, H.E.

    2008-01-01

    In 2007 is het ketenproject “Biobrood van eigen bodem” uitgevoerd in het kader van het coinnovatieprogramma biologische afzetketens. Het betrof een samenwerkingsproject van een aantal ketenpartijen uit de biologische broodketen en een aantal kennisinstellingen. Het doel van het project was gericht

  4. Plan- en procesevaluatie van de scholing van gevangenispersoneel in 'Verbal Judo'

    NARCIS (Netherlands)

    Ditzhuijzen, J. van; Plaisier, J.

    2007-01-01

    In dit onderzoek is informatie verzameld over de toepassing, ervaringen en werkzaamheid van de training Verbal judo, op grond waarvan een onderbouwde beslissing kan worden genomen over het continueren van deze training, alsmede over de noodzaak om hier nader - kwantitatief - onderzoek naar te

  5. Dierexperimenteel onderzoek naar de effecten van inhalatoire blootstelling aan pyrolysaat van verontreinigde hard-drugs, heroine en cocaine

    NARCIS (Netherlands)

    van Velsen FL; Beekhof PK; de Jong Y; Marra M; Dormans JAMA

    1985-01-01

    Het dierexperimenteel onderzoek is uitgevoerd met monsters van hard- drugs. die zijn aangetroffen bij een recent slachtoffer van de "heroine"-leuko-encephalopathie. De resultaten van een dagelijkse blootstelling van ratten gedurende 4 weken aan heroine of cocaine heeft niet geleid tot

  6. Vergelyking van twee metodes vir die bepaling van vitamien A ...

    African Journals Online (AJOL)

    Vergelyking van twee metodes vir die bepaling van vitamien A. J.J. Erasmus. Abstract. No Abstract. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's ...

  7. Stabiliteit van drijvende lichamen; anti-slingertanks

    NARCIS (Netherlands)

    Bourgingnon, G.P.

    1980-01-01

    Het dempen van de slingerbewegingen (roll) van een drijvend lichaam door middel van tanks met een vrije vloeistofoppervlakte. In de scheepsbouwkunde is vrij veel bekend over het toepassen van anti-slingertanks. De anti-slingertank, die ook dempt bij een stilliggend schip (in tegenstelling tot

  8. De fysiologische tremor van de hand

    NARCIS (Netherlands)

    Weerden, Tiemen Willem van

    1989-01-01

    Bij het innemen van een houding, zoals het willekeurig horizontaal gestrekt houden van de hand, vertoont het betrokken lichaamsdeel kleine fluctuaties in positie: de fysiologische tremor. Het doel van het proefschrift is, naast een beschrijving van het fenomeen, inzicht te geven in de oorzakelijke

  9. Sedimentêre omgewings van die Inhaca-eilandstelsel met spesiale verwysing na die petrografiese en geochemiese eienskappe van die sedimente spesiale verwysing na die petrografiese en geochemiese eienskappe van die sedimente

    Directory of Open Access Journals (Sweden)

    Marieke Peché

    2011-09-01

    Full Text Available Die Inhaca-eilandstelsel is geleë langs die suidooskus van Mosambiek. Die oostekant van die stelsel grens aan die Indiese Oseaan en die westekant aan die Baai van Maputo. Hierdie eilandstelsel bestaan uit Inhaca- en Portugese eiland, asook ’n groep sandbanke wat van die noordlike punt van Inhaca na Portugese eiland strek. Die doel van hierdie studie is om die verskillende moderne en oer-sedimentêre omgewings op die eilandstelsel te identifiseer en te beskryf, die invloed van getye en golfaksie op die moderne sedimentêre omgewing vas te stel en die geochemiese en petrografiese samestelling van die geologiese eenhede te bepaal.

  10. Die rol van die onderwys in die handhawing en uitbouing van ons volkskultuur

    Directory of Open Access Journals (Sweden)

    G.J. Jordaan

    1970-03-01

    Full Text Available Op die oog af lyk dit ’n baie maklike onderwerp, maar hoe meer 'n mens daaroor nadink hoe ingewikkelder en omvangryker word die implikasies wat verband hou. Dit is veral so omdat dit hier voor alles gaan om eerste fundamentele uitgangspunte, dit wil sê, om lewens- en wêreldbeskouing. Dit geld van albei komponente — van onderwys sowel as van kultuur.

  11. Keuzeprocessen van Consumenten

    NARCIS (Netherlands)

    B. Wierenga (Berend)

    1987-01-01

    textabstractVoor de aanbieder van een voedingsmiddel, of dit nu een merkprodukt a la Mona is of een 'commodity', bijvoorbeeld karnemelk, is het van groot belang te weten welke factoren bepalen of een consument het betreffende produkt zal kiezen dan wel voor een concurrerend alternatief zal opteren.

  12. Die evaluering van 'n bestuursopleidingskursus met behulp van die posmandjie-tegniek

    Directory of Open Access Journals (Sweden)

    W. de Jager

    1997-06-01

    Full Text Available The evaluation of a management training course by using the in-basket technique. A management training course was evaluated for effectiveness by using two specially compiled in-basket exercises equivalent in complexity. Outcome evaluation was performed so as to determine whether learning transfer took place, ie., whether management skills in the application of planning, organising and control manifest in the work context afterwards. Significant differences were found between the experimental and the control group and were investigated by means of the "Univariate procedure". This management training course could effectively be measured with the behaviour assessment approach using two groups, where only the one group was exposed to a management training course to assess whether management behaviour changed as a result of learning transfer. This study utilises the in-basket technique as an instrument for training course evaluation. Opsomming Die effektiwiteit van 'n bestuursopleidingskursus is geevalueer aan die hand van gedragverandering soos gemeet deur twee posmandjies van dieselfde moeilikheidsgraad. Uitkomsevaluering is gedoen om te bepaal of leeroordrag plaasgevind het, met ander woorde/ of the nuut aangeleerde bestuursvaardighede in die toepassing van die bestuursdimensies beplanning, organisering en beheer wel na die tyd in die konteks van werkgedrag manifesteer. Beduidende verskille tussen die eksperimentele en die kontrole groep is gevind. Dit is ondersoek met behulp van enkelveranderiike-variansie-ontleding. Die bestuursopleidingskursus kon effektief vanuit die gedragbeoordelingsbcnadering gemeet word by twee groepe, waar slegs die een groep aan 'n bestuursopleidingskursus blootgestel word om te kon bepaal of bestuursgedrag verander het. Die studie benut die posmandjie-tegniek as kursusevalueringsinstmment.

  13. Geroi serebrjanõhh pul i tshesnotshnõhh svjazok / Jevgeni Levik

    Index Scriptorium Estoniae

    Levik, Jevgeni

    2004-01-01

    Seiklusfilm "Van Helsing" : režissöör Stephen Sommers : Ameerika Ühendriigid 2004. Lisatud lühiintervjuu, kus peaosalised Hugh Jackman ja Kate Beckinsale räägivad oma tööst ja suhetest tumedate jõududega ning usust amulettidesse

  14. Internationaliseringsstrategiën in de Nederlandse Ingenieursbranche:van 'Domestic' naar 'Multidomestic'? : Van 'domestic' naar 'multidomestic'?

    NARCIS (Netherlands)

    F.A.J. van den Bosch (Frans); W.J.F. Schouten

    1993-01-01

    textabstractMet het verschijnen van Michael Porter's Competitive Advantage of Nations' is de belangstelling voor de invloed van de nationale omgeving op de internationale concurrentiepositie van bedrijven en bedrijfstakken gestimuleerd. De aandacht gaat daarbij echter vooral uit naar bedrijfstakken

  15. ’n Murgtere saak: ’n Gendermatige lees van Boom van my lewe en Ad hominem

    Directory of Open Access Journals (Sweden)

    Louisemarié Combrink

    2012-11-01

    Full Text Available Hierdie artikel bied ontleed twee kunstenaarsboeke deur manlike kunstenaars wat aan die praktykgebaseerderde navorsingsprojek Oor die einders van die bladsy deelgeneem het. Die gekose kunstenaars spreek spesifiek die gedagte van manlike weerloosheid en verwonding aan en maak in die proses van ’n aantal sogenaamde manlike maar veral ook vroulike genderbetekenaars gebruik. Schutte se Boom van my lewe en Strydom en Burger se Ad hominem word ondersoek. Daar word aangevoer dat die gebruik van veral konvensioneel vroulike mediums tesame met temas wat sowel ’n manlike as vroulike karakter het, meewerk om die ervaring van manlike weerloosheid en verwonding op so ’n wyse te kommunikeer dat ’n ongewone manlike subjekposisie daargestel word. Hierdie subjekposisie bied ’n meer genuanseerde beskouing van manlikheid as wat konvensionele (heteronormatiewe en selfs ook sogenaamde ‘nuwe’ of alternatiewe manlike subjekposisies (soos transgender, homoseksueel en dies meer diskoerse bied.

  16. Discussie over de metamorfose van Nederland

    Directory of Open Access Journals (Sweden)

    I. de Haan

    2006-01-01

    Full Text Available N.C.F. van Sas, De metamorfose van Nederland. Van oude orde naar moderniteit, 1750-1900 Ido de Haan, N.C.F. van Sas, De metamorphose van Nederland The collection of articles, which N.C.F. van Sas wrote over the course of two decades, reflect a shift in the periodization of Dutch history; away from the beginning of the Kingdom of the United Netherlands in 1813, to what Van Sas describes  as the birth of modern politics in the Netherlands in the Patriot Revolt in the 1780s. His version of the modernization of Dutch society, a the meal so discussed in the socio-economic history of Jan Luiten van Zanden and Arthur van Riel, and the cultural approach of Joost Kloek and Wijnand Mijnhardt, stresses the political aspects of the metamorphosis in the Dutch Sattelzeit. Van Sas convincingly shows how this politicization of cultural ideals, and the revolutionary zeal with which this was practised, was not just an import from France but part and parcel of tendencies that were already present within Dutch society around 1800. Disappointingly, however, Van Sas refrains from giving a more general evaluation of the political reconstruction and innovation that took shape in the early nineteenth century, there by missing the opportunity to link these episodes to the discussion about the constitutional transition after 1848 and the renewed nationalism at the end of the nineteenth century.

  17. Op het raakvlak van historische disciplines

    Directory of Open Access Journals (Sweden)

    Dick E.H. de Boer

    2015-12-01

    Full Text Available At the Meeting Point of Historical DisciplinesThis contribution introduces the way in which the interaction between history and archaeology is examined, taking the case of the identification of a tomb and remains of Count William II of Holland, King of the Holy Roman Empire (†1256, in the former abbey church of Middelburg. It stresses the necessity of strict source criticism, which should be self-evident, but is at risk of receiving less attention. This is even truer when one of the disciplines is used as an auxiliary argument to support the other instead of a balanced approach. Wishful interpretation in such a case is a clear risk. The contribution gives some examples, before sketching the advance made thanks to the reapprochement of history and archaeology, and the consequent need for a registration system of archaeological data that can facilitate multi-disciplinary analysis. It ends with an introduction to the different stands in the dossier.Deze bijdrage biedt een inleiding op de wijze waarop de interactie tussen geschiedenis en archeologie wordt bekeken aan de hand van een casus betreffende het graf en de overblijfselen van de in 1256 gesneuvelde graaf Willem II van Holland, koning van het Heilige Roomse Rijk, in de voormalige abdijkerk van Middelburg. Hij benadrukt de noodzaak van een nauwgezette bronnenkritiek. Hoewel deze als vanzelfsprekend moet worden beschouwd, is er een zeker risico van verminderde zorgvuldigheid. Dit speelt vooral wanneer één van de disciplines wordt gebruikt als een hulp-argument, dat de uitkomsten van de andere moet ondersteunen, in plaats van een benadering waarbij beide disciplines in evenwicht zijn. Bij een onbalans is het risico van interpreteren in het licht van de gewenste uitkomst duidelijk aanwezig. De bijdrage geeft hiervan enkele voorbeelden, alvorens de vooruitgang te schetsen die is geboekt juist dankzij de toenadering tussen geschiedenis en archeologie, en aan te geven dat er behoefte is aan een

  18. Levende boerderij, lerende kinderen : beschrijving en effecten van verschillende vormen van educatie op de boerderij

    NARCIS (Netherlands)

    Hassink, J.; Haubenhofer, D.K.; Meer, van der I.M.; Kamp, van der N.; Schreurs, E.; Schuler, Y.D.

    2009-01-01

    Verschillende vormen van boerderij-educatie werden onderzocht. Te weten: excursie, boerderijweek, boerderij-atelier en boerderijschool. Van elk van deze vormen is onderzocht welk effect ze hadden op de kinderen. Voor de verschillende vormen zijn aanbevelingen opgesteld die moeten leiden tot een

  19. Road traffic noise prediction model for heterogeneous traffic based on ASJ-RTN Model 2008 with consideration of horn

    Science.gov (United States)

    Hustim, M.; Arifin, Z.; Aly, S. H.; Ramli, M. I.; Zakaria, R.; Liputo, A.

    2018-04-01

    This research aimed to predict the noise produced by the traffic in the road network in Makassar City using ASJ-RTN Model 2008 by calculating the horn sound. Observations were taken at 37 survey points on road side. The observations were conducted at 06.00 - 18.00 and 06.00 - 21.00 which research objects were motorcycle (MC), light vehicle (LV) and heavy vehicle (HV). The observed data were traffic volume, vehicle speed, number of horn and traffic noise using Sound Level Meter Tenmars TM-103. The research result indicates that prediction noise model by calculating the horn sound produces the average noise level value of 78.5 dB having the Pearson’s correlation and RMSE of 0.95 and 0.87. Therefore, ASJ-RTN Model 2008 prediction model by calculating the horn sound is said to be sufficiently good for predicting noise level.

  20. Verspreiding en habitats van Lymnaea natalensis, tussengasheerslak van die lewerbot Fasciola gigantica, in Suid-Afrika

    Directory of Open Access Journals (Sweden)

    K. N. de Kock

    2001-09-01

    Full Text Available Hierdie artikel fokus op die geografiese verspreiding en die habitats van Lymnaea natalensis, die slaktussengasheer van die lewerbot, Fasciola gigantica, soos gereflekteer deur die vindplekke van sy 4 552 monsters wat tans in die Nasionale Varswaterslakversameling (NVV van Suid-Afrika op rekord is. Alhoewel hierdie spesie in’n verskeidenheid van waterliggame aangetref is, was die meerderheid van die monsters (±70% afkomstig vanuit riviere, spruite en damme en is die water in 70.8% van die gevalle as standhoudend en in 71.8% van die gevalle as stadigvloeiend, of staande beskryf.  Die resultate van lewenstabeleksperimente deur verskeie outeurs het daarop gedui dat temperatuur ’n minder belangrike bepalende faktor in sy geografiese verspreiding blyk te wees, maar dat die beskikbaarheid van standhoudende water deurslaggewend vir sy voorkoms in ’n gegewe habitat mag wees. Hierdie resultate strook met die bevinding dat slegs 7.5% van die monsters van hierdie spesie in die NVV in habitats wat as seisoenaal beskryf is, versamel is. Verder bied dit’n logiese verklaring vir die sporadiese voorkoms, of totale afwesigheid van hierdie spesie in die droër streke van Suid-Afrika.  Opgaardamme en besproeiingsnetwerke dra grootliks by tot die skepping van permanente habitats wat geskik sou wees vir L. natalensis.  As tussengasheer vir een van die lewerbotspesies wat reeds ’n ekonomiese faktor in Suid-Afrika is, is dit ’n aspek waarmee beslis rekening gehou behoort te word in die beplanning en konstruksie van nuwe besproeiingsprojekte.AbstractDistribution and habitats of Lymnaea natalensis, snail intermediate host of the liver fluke Fasciola gigantica, in South Africa This paper focuses on the geographical distribution and the habitats of Lymnaea natalensis, the snail intermediate host of the liver fluke, Fasciola gigantica, as reflected by the collection sites of its 4 552 samples currently on record in the National Freshwater Snail Collection