Now showing items 1-20 of 1136

  • 3D MHD modeling of twisted coronal loops 

    Reale, F.; Orlando, S.; Guarrasi, M.; Mignone, A.; Peres, G.; Hood, A. W.; Priest, E. R. (2016-10-10) - Journal article
    We perform MHD modeling of a single bright coronal loop to include the interaction with a non-uniform magnetic field. The field is stressed by random footpoint rotation in the central region and its energy is dissipated ...
  • 3D PiC code investigations of Auroral Kilometric Radiation mechanisms 

    Gillespie, K. M.; McConville, S. L.; Speirs, D. C.; Ronald, K.; Phelps, A. D. R.; Bingham, R.; Cross, A. W.; Robertson, C. W.; Whyte, C. G.; He, W.; Vorgul, I.; Cairns, R. A.; Kellett, B. J. (IOP Publishing Ltd., 2014) - Conference item
    Efficient (similar to 1%) electron cyclotron radio emissions are known to originate in the X mode from regions of locally depleted plasma in the Earths polar magnetosphere. These emissions are commonly referred to as the ...
  • 3D pic simulations of collisionless shocks at lunar magnetic anomalies and their role in forming lunar swirls 

    Bamford, R. A.; Alves, E. P.; Cruz, F.; Kellett, B. J.; Fonsesca, R. A.; Silva, L. O.; Trines, R. M. G. M.; Halekas, J. S.; Kamer, G.; Harnett, E.; Cairns, Robert Alan; Bingham, R. (2016-10-18) - Journal article
    Investigation of the lunar crustal magnetic anomalies offers a comprehensive long-term data set of observations of small-scale magnetic fields and their interaction with the solar wind. In this paper a review of the ...
  • 3D whole-prominence fine structure modeling 

    Gunar, Stanislav; Mackay, Duncan Hendry (2015-04-20) - Journal article
    We present the first 3D whole-prominence fine structure model. The model combines a 3D magnetic field configuration of an entire prominence obtained from nonlinear force-free field simulations, with a detailed description ...
  • 3D whole-prominence fine structure modeling. II. Prominence evolution 

    Gunar, Stanislav; Mackay, Duncan Hendry (2015-10-20) - Journal article
    We use the new three-dimensional (3D) whole-prominence fine structure model to study the evolution of prominences and their fine structures in response to changes in the underlying photospheric magnetic flux distribution. ...
  • 5-hydroxymethylcytosine marks promoters in colon that resist DNA hypermethylation in cancer 

    Uribe-Lewis, Santiago; Stark, Rory; Carroll, Thomas; Dunning, Mark J.; Bachman, Martin; Ito, Yoko; Stojic, Lovorka; Halim, Silvia; Vowler, Sarah L.; Lynch, Andy G.; Delatte, Benjamin; de Bony, Eric J.; Colin, Laurence; Defrance, Matthieu; Krueger, Felix; Silva, Ana Luisa; ten Hoopen, Rogier; Ibrahim, Ashraf E.K.; Fuks, François; Murrell, Adele (2015-04-01) - Journal article
    Background : The discovery of cytosine hydroxymethylation (5hmC) as a mechanism that potentially controls DNA methylation changes typical of neoplasia prompted us to investigate its behaviour in colon cancer. 5hmC is ...
  • 50-Year Anniversary of Papers by Cormack, Jolly and Seber 

    Buckland, Stephen Terrence; Morgan, Byron J T (2016-05) - Journal item
  • Above the noise : the search for periodicities in the inner heliosphere 

    Threlfall, James William; De Moortel, Ineke; Conlon, Thomas Michael (2017-11) - Journal article
    Remote sensing of coronal and heliospheric periodicities can provide vital insight into the local conditions and dynamics of the solar atmosphere. We seek to trace long (one hour or longer) periodic oscillatory signatures ...
  • Accounting for preferential sampling in species distribution models 

    Pennino, Maria Grazia; Paradinas, Iosu; Illian, Janine B.; Muñoz, Facundo; Bellido, José María; López-Quílez, Antonio; Conesa, David (2019-01-01) - Journal article
    Species distribution models (SDMs) are now being widely used in ecology for management and conservation purposes across terrestrial, freshwater, and marine realms. The increasing interest in SDMs has drawn the attention ...
  • Acoustic and foraging behavior of a Baird’s beaked whale, Berardius bairdii, exposed to simulated sonar 

    Stimpert, Alison; De Ruiter, Stacy Lynn; Southall, Brandon; Moretti, David; Falcone, Erin; Goldbogen, Jeremy; Friedlaender, Ari; Schorr, Greg; Calambokidis, John (2014-11-13) - Journal article
    Beaked whales are hypothesized to be particularly sensitive to anthropogenic noise, based on previous strandings and limited experimental and observational data. However, few species have been studied in detail. We describe ...
  • Acoustic sequences in non-human animals : a tutorial review and prospectus 

    Kershenbaum, Arik; Blumstein, Dan; Roch, Marie; Akçay, Çaglar; Backus, Gregory; Bee, Mark A.; Bohn, Kirsten; Cao, Yan; Carter, Gerald; Cäsar, Cristiane; Coen, Michael; De Ruiter, Stacy Lynn; Doyle, Laurance; Edelman, Shimon; Ferrer-i-Cancho, Ramon; Freeberg, Todd M.; Garland, Ellen Clare; Gustison, Morgan; Harley, Heidi E.; Huetz, Chloé; Hughes, Melissa; Bruno, Julia Hyland; Ilany, Amiyaal; Jin, Dezhe Z.; Johnson, Michael; Ju, Chenghui; Karnowski, Jeremy; Lohr, Bernard; Manser, Marta; McCowan, Brenda; Mercado III, Eduardo; Narins, Peter M.; Piel, Alex; Rice, Megan; Salmi, Roberta; Sasahara, Kazutoshi; Sayigh, Laela; Shiu, Yu; Taylor, Charles; Vallejo, Edgar E.; Waller, Sara; Zamora-Gutierrez, Veronica (2016-02) - Journal article
    Animal acoustic communication often takes the form of complex sequences, made up of multiple distinct acoustic units. Apart from the well-known example of birdsong, other animals such as insects, amphibians,and mammals ...
  • Active region emission measure distributions and implications for nanoflare heating 

    Cargill, P.J. (2014-03-20) - Journal article
    The temperature dependence of the emission measure (EM) in the core of active regions coronal loops is an important diagnostic of heating processes. Observations indicate that EM(T) ~ T a below approximately 4 MK, with 2 < ...
  • Adaptive distance sampling 

    Pollard, John (University of St Andrews, 2002) - Thesis
    We investigate mechanisms to improve efficiency for line and point transect surveys of clustered populations by combining the distance methods with adaptive sampling. In adaptive sampling, survey effort is increased when ...
  • Adaptive multivariate global testing 

    Minas, Giorgos; Aston, John A D; Stallard, Nigel (2014-06) - Journal article
    We present a methodology for dealing with recent challenges in testing global hypotheses using multivariate observations. The proposed tests target situations, often arising in emerging applications of neuroimaging, where ...
  • Adventures in applying iteration lemmas 

    Pfeiffer, Markus Johannes (University of St Andrews, 2013-06-28) - Thesis
    The word problem of a finitely generated group is commonly defined to be a formal language over a finite generating set. The class of finite groups has been characterised as the class of finitely generated groups that ...
  • Affine rigidity and conics at infinity 

    Connelly, Robert; Gortler, Steven J.; Theran, Louis (2018-07) - Journal article
    We prove that if a framework of a graph is neighborhood affine rigid in d-dimensions (or has the stronger property of having an equilibrium stress matrix of rank n — d — 1) then it has an affine flex (an affine, but non ...
  • Aggregation and travelling wave dynamics in a two-population model of cancer cell growth and invasion 

    Bitsouni, Vasiliki; Trucu, Dumitru; Chaplain, Mark Andrew Joseph; Eftimie, Raluca (2018-01-15) - Journal article
    Cells adhere to each other and to the extracellular matrix (ECM) through protein molecules on the surface of the cells. The breaking and forming of adhesive bonds, a process critical in cancer invasion and metas- tasis, ...
  • Alfven wave phase-mixing and damping in the ion cyclotron range of frequencies 

    Threlfall, J.; McClements, K. G.; De Moortel, I. (2011-01) - Journal article
    Aims. We determine the effect of the Hall term in the generalised Ohm's law on the damping and phase mixing of Alfven waves in the ion cyclotron range of frequencies in uniform and non-uniform equilibrium plasmas. Methods. ...
  • Alfvén wave boundary condition for responsive magnetosphere- ionosphere coupling 

    Wright, A.N.; Russell, A.J.B. (2014-05-01) - Journal article
    The solution of electric fields and currents in a height-resolved ionosphere is traditionally solved as an elliptic equation with Dirichlet or Neumann boundary condition in which the magnetosphere is represented as an ...
  • Alfvén waves in low-mass star-forming regions 

    Martin, Clare E. (University of St Andrews, 1999) - Thesis
    Low-mass star-forming regions have a lifetime which is greater than their dynamical time and must therefore be, in an average sense, in mechanical equilibrium. The work presented here proposes that an equilibrium exists ...