M. Kramer

Publication List Details

Period

1980 - 2009

Number

140

Co-Authors

Polarisation measurements of five pulsars with interpulses (2009)

Keith, M. J., Johnston, S., Kramer, M., Weltevrede, P.

We present polarisation observations of five pulsars whose profiles exhibit two distinct emission regions separated by close to 180 degrees of longitude. We fitted the position angle of the linear...

Searches for gravitational waves from known pulsars with S5 LIGO data (2009)

Collaboration, The LIGO Scientific, Abbott, R., Acernese, F., Adhikari, R., Ajith, P., ...

We present a search for gravitational waves from 116 known millisecond and young pulsars using data from the fifth science run of the LIGO detectors. For this search ephemerides overlapping the run...

Further Searches for RRATs in the Parkes Multi-Beam Pulsar Survey (2009)

Keane, E. F., Ludovici, D. A., Eatough, R. P., Kramer, M., Lyne, A. G., McLaughlin, M. A., ...

We describe the steps involved in performing searches for sources of transient radio emission such as Rotating Radio Transients (RRATs), and present 10 new transient radio sources discovered in a...

Unusual glitch activity in the RRAT J1819-1458: an exhausted magnetar? (2009)

Lyne, A. G., McLaughlin, M. A., Keane, E. F., Kramer, M., Espinoza, C. M., Stappers, B. W., ...

We present an analysis of regular timing observations of the high-magnetic-field Rotating Radio Transient (RRAT) J1819$-$1458 obtained using the 64-m Parkes and 76-m Lovell radio telescopes over the...

Timing Observations of Rotating Radio Transients (2009)

McLaughlin, M. A., Lyne, A. G., Keane, E. F., Kramer, M., Miller, J. J., Lorimer, D. R., ...

We present radio timing measurements of six rotating radio transient (RRAT) sources discovered in the Parkes Multibeam Pulsar Survey. These provide four new phase-connected timing solutions and two...

Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars (2009)

Camilo, F., Ray, P. S., Ransom, S. M., Burgay, M., Johnson, T. J., Kerr, M., ...

Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discovery of radio...

Pulsar science with the Five hundred metre Aperture Spherical Telescope (2009)

Smits, R., Lorimer, D. R., Kramer, M., Manchester, R., Stappers, B., Jin, C. J., ...

With a collecting area of 70 000 m^2, the Five hundred metre Aperture Spherical Telescope (FAST) will allow for great advances in pulsar astronomy. We have performed simulations to estimate the...

Generic tests of the existence of the gravitational dipole radiation and the variation of the gravitational constant (2009)

Lazaridis, K., Wex, N., Jessner, A., Kramer, M., Stappers, B. W., Janssen, G. H., ...

We present results from the high precision timing analysis of the pulsar-white dwarf (WD) binary PSR J1012+5307 using 15 years of multi-telescope data. Observations were performed regularly by the...

Discovery of three new pulsars in a 610 MHz pulsar survey with the GMRT (2009)

Joshi, B. C., McLaughlin, M. A., Lyne, A. G., Ludovici, D. A., Pawar, N. A., Faulkner, A. J., ...

We report on the discovery of three new pulsars in the first blind survey of the north Galactic plane (45 degrees < l < 135 degrees; |b| < 1 degrees with the Giant Meterwave Radio telescope (GMRT) at...

Rare meson decays into very light neutralinos (2009)

Dreiner, H. K., Grab, S., Koschade, Daniel, Kramer, M., Langenfeld, Ulrich, O'Leary, Ben

We investigate the bounds on the mass of the lightest neutralino from rare meson decays within the MSSM with and without minimal flavor violation. We present explicit formulae for the two-body decays...

Peculiar nulling in PSR J1738-2330 (2009)

Gajjar, Vishal, Joshi, Bhal Chandra, Kramer, M.

Several pulsars show sudden cessation of pulsed emission, which is known as nulling. The number of known nulling pulsars has not been significantly enhanced in the last decade, although the pulsar...

Phase-resolved Faraday rotation in pulsars (2009)

Noutsos, A., Karastergiou, A., Kramer, M., Johnston, S., Stappers, B. W.

We have detected significant Rotation Measure variations for 9 bright pulsars, as a function of pulse longitude. An additional sample of 10 pulsars showed a rather constant RM with phase, yet a small...

A new technique for timing the double pulsar system (2009)

Freire, P. C. C., Wex, N., Kramer, M., Lorimer, D. R., McLaughlin, M. A., Stairs, I. H., ...

In 2004, McLaughlin et al. discovered a phenomenon in the radio emission of PSR J0737-3039B (B) that resembles drifting sub-pulses. The repeat rate of the sub-pulses is equal to the spin frequency of...

Discovery of new gamma-ray pulsars with AGILE (2009)

Pellizzoni, A., Pilia, M., Possenti, A., Chen, A., Giuliani, A., Trois, A., ...

Using gamma-ray data collected by the Astrorivelatore Gamma ad Immagini LEggero (AGILE) satellite over a period of almost one year (from 2007 July to 2008 June), we searched for pulsed signals from...

Precision Astrometry with the Very Long Baseline Array: Parallaxes and Proper Motions for 14 Pulsars (2009)

Chatterjee, S., Brisken, W. F., Vlemmings, W. H. T., Goss, W. M., Lazio, T. J. W., Cordes, J. M., ...

Astrometry can bring powerful constraints to bear on a variety of scientific questions about neutron stars, including their origins, astrophysics, evolution, and environments. Using phase-referenced...

Gravitational science with pulsars and the Square Kilometre Array (2009)

Stairs, Ingrid H., Kramer, M., Backer, Donald C., Bailes, M., Cordesk, J. M., Johnston, S., ...

Pulsar observations form one of the Key Science Projects for the Square Kilometre Array. These will allow unique tests of General Relativity based on finding and timing pulsars in relativistic...

Gravitational science with pulsars and the Square Kilometre Array (2009)

Stairs, Ingrid H., Kramer, M., Backer, Donald C., Bailes, M., Cordesk, J. M., Johnston, S., ...

Pulsar observations form one of the Key Science Projects for the Square Kilometre Array. These will allow unique tests of General Relativity based on finding and timing pulsars in relativistic...

Pharmacogenetic analyses of hematotoxicity in advanced gastric cancer patients receiving biweekly fluorouracil, leucovorin, oxaliplatin and docetaxel (FLOT): a translational study of the Arbeitsgemeinschaft Internistische Onkologie (AIO) (2009)

Goekkurt, E., Mogck, U., Pauligk, C., Hartmann, J. T., Kramer, M., ...

Background: Docetaxel-based chemotherapy regimens have demonstrated activity in advanced gastric cancer (AGC). However, a high rate of grade 3/4 hematotoxicity was reported with these regimens. Our...

A MDR1 (ABCB1) gene single nucleotide polymorphism predicts outcome of temozolomide treatment in glioblastoma patients (2009)

Schaich, M., Kestel, L., Pfirrmann, M., Robel, K., Illmer, T., Kramer, M., ...

Background: Some patients with glioblastoma multiform do not respond to temozolomide even though they have aberrant promoter methylation of the DNA repair enzyme O6-methylguanine methyltransferase...

Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars (2009)

Camilo, F., Ray, P. S., Ransom, S. M., Burgay, M., Johnson, T. J., Kerr, M., ...

Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discovery of radio...

Arecibo pulsar survey using ALFA: probing radio pulsar intermittency and transients (2009)

Deneva, J. S., Cordes, J. M., McLaughlin, M. A., Nice, D. J., Lorimer, D. R., Crawford, F., ...

We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) survey of the Galactic plane. We have discovered seven objects through a search for...

Arecibo pulsar survey using ALFA: probing radio pulsar intermittency and transients (2009)

Deneva, J. S., Cordes, J. M., McLaughlin, M. A., Nice, D. J., Lorimer, D. R., Crawford, F., ...

We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) survey of the Galactic plane. We have discovered seven objects through a search for...

High-Resolution Timing Observations of Spin-Powered Pulsars with the AGILE Gamma-Ray Telescope (2008)

Pellizzoni, A., Pilia, M., Possenti, A., Fornari, F., Caraveo, P., Del Monte, E., ...

AGILE is a small gamma-ray astronomy satellite mission of the Italian Space Agency dedicated to high-energy astrophysics launched in 2007 April. Its 1 microsecond absolute time tagging capability...

Transverse momentum and centrality dependence of high-pt non-photonic electron suppression in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

The STAR collaboration at RHIC reports measurements of the inclusive yield of non-photonic electrons, which arise dominantly from semi-leptonic decays of heavy flavor mesons, over a broad range of...

Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

We present strange particle spectra and yields measured at mid-rapidity in sqrt text s=200 GeV proton-proton (p+p) collisions at RHIC. We find that the previously observed universal transverse mass...

Neutral Kaon Interferometry in Au+Au collisions at sqrt(s_NN) = 200 GeV (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

We present the first statistically meaningful results from two-K0s interferometry in heavy-ion collisions. A model that takes the effect of the strong interaction into account has been used to fit...

Longitudinal double-spin asymmetry and cross section for inclusive jet production in polarized proton collisions at sqrt(s) = 200 GeV (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

We report a measurement of the longitudinal double-spin asymmetry A_LL and the differential cross section for inclusive midrapidity jet production in polarized proton collisions at sqrt(s)=200 GeV....

Mass, quark-number, and sqrt sNN dependence of the second and fourth flow harmonics in ultra-relativistic nucleus-nucleus collisions (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

We present STAR measurements of the azimuthal anisotropy parameter v_2 for pions, kaons, protons, Lambda, bar Lambda, Xi+bar Xi, and \Omega + bar Omega, along with v_4 for pions, kaons, protons, and...

Global polarization measurement in Au+Au collisions (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become...

Measurement of Transverse Single-Spin Asymmetries for Di-Jet Production in Proton-Proton Collisions at sqrt s = 200 GeV (2008)

Abelev, B.I., Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., ...

We report the first measurement of the opening angle distribution between pairs of jets produced in high-energy collisions of transversely polarized protons. The measurement probes (Sivers)...

PSR J1410-6132: a young, energetic pulsar associated with the EGRET source 3EG J1410-6147 (2008)

O'Brien, J. T., Johnston, S., Kramer, M., Lyne, A. G., Bailes, M., Possenti, A., ...

We present the discovery of PSR J1410−6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a seven-beam 6.3-GHz receiver on the 64-m Parkes radio telescope....

Functional Wnt signaling is increased in idiopathic pulmonary fibrosis (2008)

Konigshoff, M., Balsara, N., Pfaff, E.M., Kramer, M., Chrobak, I., Seeger, W., ...

BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease, characterized by distorted lung architecture and loss of respiratory function. Alveolar epithelial cell injury and...

An eccentric binary millisecond pulsar in the Galactic plane (2008)

Champion, D.J., Ransom, S.M., Lazarus, P., Camilo, F., Bassa, C., Kaspi, V.M., ...

Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+ 0327, a radio pulsar...

The discovery of an eccentric millisecond pulsar in the Galactic plane (2008)

Champion, D.J., Ransom, S.M., Lazarus, P., Camilo, F., Kaspi, V.M., Nice, D.J., ...

The evolution of binary systems is governed by their orbital properties and the stellar density of the local environment. Studies of neutron stars in binary star systems offer unique insights into...

PSR J1856+0245: Arecibo discovery of a young, energetic pulsar coincident with the TeV γ-ray source HESS J1857+026 (2008)

Hessels, J.W.T., Nice, D.J., Gaensler, B.M., Kaspi, V.M., Lorimer, D.R., Champion, D.J., ...

We present the discovery of the Vela-like radio pulsar J1856+0245 in the Arecibo PALFA survey. PSR J1856+0245 has a spin period of 81 ms, a characteristic age of 21 kyr, and a spin-down luminosity...

Multi-telescope timing of PSR J1518+4904 (2008)

Janssen, G.H., Stappers, B.W., Kramer, M., Nice, D.J., Jessner, A., Cognard, I., ...

Context. PSR J1518+4904 is one of only 9 known double neutron star systems. These systems are highly valuable for measuring the masses of neutron stars, measuring the effects of gravity, and testing...

On the nature of the intermittent pulsar PSRB1931+24 (2008)

Rea, N., Kramer, M., Stella, L., Jonker, P.G., Bassa, C.G., Groot, P.J., ...

PSR B1931+24 is the first intermittent radio pulsar discovered to date, characterized by a 0.8-s pulsation, which turns on and off quasi-periodically every similar to 35 d, with a duty cycle of...

Radio spectrum of the AXP J1810−197 and of its profile components (2008)

Lazaridis, K., Jessner, A., Kramer, M., Stappers, B.W., Lyne, A.G., Jordan, C.A., ...

As part of a European Pulsar Network (EPN) multitelescope observing campaign, we performed simultaneous multifrequency observations at 1.4, 4.9 and 8.4 GHz during 2006 July and quasi-simultaneous...

Correlation of histology of healed fractures and tissue surrounding implants with ultrasonographic and radiographic appearance (2008)

Risselada, M, Van Bree, Henri, Kramer, M, Chiers, Koen, Duchateau, Luc, Verleyen, Pieter

OBJECTIVES: To determine if there was histological correlation with ultrasonographic images of healed fractures and implant-associated tissue after fracture treatment by plate osteotomy. METHODS:...

PSR J1410-6132: a young, energetic pulsar associated with the EGRET source 3EG J1410-6147 (2008)

O'Brien, J. T., Johnston, S., Kramer, M., Lyne, A. G., Bailes, M., Possenti, A., ...

We present the discovery of PSR J1410−6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a seven-beam 6.3-GHz receiver on the 64-m Parkes radio telescope. The...

1 (2007)

A. J. Mcauley, D. S. Pinck, T. Kanai, M. Kramer, G. Ramirez, H. Tohme

This paper describes results from several wireless field trials. During these trials, data applications communicated over various combinations of wireless networks including satellite, low power PCS,...

Physics at Linear Colliders (2007)

Conveners Aurenche Finch, A. Finch, M. Greco, D. J. Miller, J. Blumlein, F. Boudjema, ...

Introduction As it is well known, there are several ways to generate photon-photon collisions at linear e + e \Gamma colliders. Bremsstrahlung and/or beamstrahlung photons radiated by the incoming...

Partially Ionized Layers of Accreted Envelopes of Weakly and Strongly Magnetized Neutron Stars (2007)

M. Kramer, N. Wex, R. Wielebinski, Alexander Potekhin, Gilles Chabrier, Yuri Shibanov

. We study equilibrium properties of partially ionized hydrogen atmospheres and subphotospheric layers of weakly (with magnetic eld B 10 9 G) and strongly (B 10 10 G) magnetized neutron stars. In...

V. D. Pal'shin, A. I. Tsygan (2007)

Ioffe Physical Technical, M. Kramer, N. Wex, R. Wielebinski, V. D. Pal'shin, A. I. Tsygan

. It is shown that X-ray binaries can be accelerated by their own radiation. It is possible if the magnetic field of a neutron star in a binary differs from the dipolar field. Asymmetric X-ray...

Emission of Particles and Photons in the Pulsar Polar Cap (2007)

Tsygan St Peterburg, M. Kramer, N. Wex, R. Wielebinski, A. I. Tsygan

. We study emission of particles and photons from the pulsar polar cap. The Goldreich-Julian model for the regime of free emission of charged particles from the neutron star surface is used. In this...

The Production of Charginos/Neutralinos and Sleptons at Hadron Colliders (2007)

Beenakker Klasen Kramer, W. Beenakker, M. Klasen, M. Kramer, T. Plehn, M. Spira

We analyse the production of charginos/neutralinos and sleptons at the hadron colliders Tevatron and LHC in the direct channels: pp=pp ! ~ i ~ j + X and ~ ` ~ ` 0 + X . The cross sections for these...

Photoproduction (2007)

Kramer Zunft Steegborn, M. Kramer, J. Zunft, J. Steegborn, P. M. Zerwas

Inelastic photoproduction of J=/ particles at high energies is one of the processes to determine the gluon distribution in the nucleon. We have calculated the QCD radiative corrections to the...

A 143 Millisecond Radio Pulsar In The Supernova Remnant S147 (2007)

Anderson Cadwell Jacoby, S. B. Anderson, B. J. Cadwell, B. A. Jacoby, A. Wolszczan, R. S. Foster, ...

We report the discovery of a 143 ms pulsar, PSR J053812817, in the supernova remnant S147 (G180.021.7). The pulsar is located 409 west of the center of S147, well within its evolved, roughly circular...

Experimental Results From Internetworking Data Applications Over Various Wireless Networks Using a Single Flexible Error Control Protocol (2007)

A. J. Mcauley, D. S. Pinck, T. Kanai, M. Kramer, G. Ramirez, ...

This paper describes results from several wireless field trials. During these trials, data applications communicated over various combinations of wireless networks including satellite, low power PCS,...

Unexpected Variations in Pulsar Flux Densities At Mm-Wavelengths (2007)

M. Kramer, Kramer Xilouris

. Monitoring of the flux-densities near 30 GHz are reported for four pulsars. Apparently random variations are found over 10 to 20 minutes, with rms amplitudes 20% to 100% of the mean flux. These...

c (2007)

M. Kramer, J. Zunft, J. Steegborn, P. M. Zerwas

Inelastic photoproduction of J= / particles at high energies is one of the processes to determine the gluon distribution in the nucleon. We have calculated the QCD radiative corrections to the...

Chandra Smells a RRAT: X-ray Detection of a Rotating Radio Transient (2006)

Gaensler, B. M., McLaughlin, M., Reynolds, S., Borkowski, K., Rea, N., Possenti, A., ...

"Rotating RAdio Transients" (RRATs) are a newly discovered astronomical phenomenon, characterised by occasional brief radio bursts, with average intervals between bursts ranging from minutes to...

A periodically active pulsar giving insight into magnetospheric physics (2006)

Kramer, M., Lyne, A. G., O'Brien, J. T., Jordan, C. A., Lorimer, D. R.

PSR B1931+24 (J1933+2421) behaves as an ordinary isolated radio pulsar during active phases that are 5-10 days long. However, the radio emission switches off in less than 10 seconds and remains...

Which Pharmacists Contribute to High-Level Pharmacotherapy Audit Meeting with General Practioners? (2006)

Florentinus, S.R., Hulten, R.P. Van, Kramer, M., Dijk, L. Van, Heerdink, E.R., Leufkens, H.G.M., ...

BACKGROUND: In the Netherlands, community pharmacists and general practitioners (GPs) collaborate in pharmacotherapy audit meetings (PTAMs) to optimize pharmacotherapy. OBJECTIVE: To identify...

Simulation zur Stimulation von Kopfbewegungen zur VR gestützten Schleudertraumatherapie (2006)

Bockholt, U., Drevensek, T., Schäffer, A., Bisler, A., Rettig, A., Kramer, M.

Funktionelle Störungen stellen die Ursache chronischer Schmerzen nach Schleudertrauma dar und verursachen immense Kosten im Gesundheitssystem. In diesem Verfahren wird durch den kombinierten Einsatz...

Discovery of the X-ray Counterpart to the Rotating Radio Transient J1819--1458 (2005)

Reynolds, S. P., Borkowski, K. J., Gaensler, B. M., Rea, N., McLaughlin, M., Possenti, A., ...

We present the discovery of the first X-ray counterpart to a Rotating RAdio Transient (RRAT) source. RRAT J1819--1458 is a relatively highly magnetized (B $\sim 5\times10^{13}$ G) member of a new...

Testing GR with the Double Pulsar: Recent Results (2005)

Kramer, M., Lorimer, D. R., Lyne, A. G., McLaughlin, M., Burgay, M., D'Amico, N., ...

This first ever double pulsar system consists of two pulsars orbiting the common center of mass in a slightly eccentric orbit of only 2.4-hr duration. The pair of pulsars with pulse periods of 22 ms...

Azimuthal anisotropy in Au+Au collisions at sqrt sNN = 200 GeV (2004)

Adams, J., Aggarwal, M.M., Ahammed, Z., Amonett, J., Anderson, B.D., Akhipkin, D., ...

The results from the STAR Collaboration on directed flow (v_1), elliptic flow (v_2), and the fourth harmonic (v_4) in the anisotropic azimuthal distribution of particles from Au+Au collisions at...

Strong-Field Tests of Gravity Using Pulsars and Black Holes (2004)

Kramer, M., Backer, D. C., Cordes, J. M., Lazio, T. J. W., Stappers, B. W., Johnston, S.

The sensitivity of the SKA enables a number of tests of theories of gravity. A Galactic Census of pulsars will discover most of the active pulsars in the Galaxy beamed toward us. In this census will...

Vorrichtung zur Diagnose und/oder Therapie von Funktionsstoerungen der Halswirbelsaeule (2004)

Bockholt, U., Bilser, A., Kramer, M., Hartwig, E.

WO2004043257 A UPAB: 20040709 NOVELTY - Cervical spine diagnosis and therapy device comprises a device for limiting the field of vision of the patient (1), a tracking system for recording...

The double pulsar system J0737-3039: modulation of A by B at eclipse (2004)

McLaughlin, M. A., Lyne, A. G., Lorimer, D. R., Possenti, A., Manchester, R. N., Camilo, F., ...

We have investigated the eclipse of the 23 ms pulsar, PSR J0737-3039A, by its 2.8 s companion PSR J0737-3039B in the recently discovered double pulsar system using data taken with the Green Bank...

The double pulsar system J0737-3039: modulation of A by B at eclipse (2004)

McLaughlin, M. A., Lyne, A. G., Lorimer, D. R., Possenti, A., Manchester, R. N., Camilo, F., ...

We have investigated the eclipse of the 23 ms pulsar, PSR J0737-3039A, by its 2.8 s companion PSR J0737-3039B in the recently discovered double pulsar system using data taken with the Green Bank...

Proper motion, age and initial spin period of PSR J0538+2817 in S147 (2003)

Kramer, M., Lyne, A. G., Hobbs, G., Löhmer, O., Carr, P., Jordan, C., ...

We present results of timing observations of the 143-ms pulsar J0538+2817 that provide a proper motion measurement which clearly associates the pulsar with the supernova remnant S147. We measure a...

Simultaneous single-pulse observations of radio pulsars II. Orthogonal polarization modes in PSR B1133+16 (2002)

Karastergiou, A., Kramer, M., Johnston, S., Lyne, A. G., Bhat, N. D. R., Gupta, Y.

In this letter, we present a study of orthogonal polarization modes in the radio emission of PSR B1133+16, conducted within the frame of simultaneous, multi-frequency, single-pulse observations....

Simultaneous single-pulse observations of radio pulsars II. Orthogonal polarization modes in PSR B1133+16 (2002)

Karastergiou, A., Kramer, M., Johnston, S., Lyne, A. G., Bhat, N. D. R., Gupta, Y.

In this letter, we present a study of orthogonal polarization modes in the radio emission of PSR B1133+16, conducted within the frame of simultaneous, multi-frequency, single-pulse observations....

A new universality for random sequential deposition of needles (2000)

Vandewalle, Nicolas, Galam, S., Kramer, M.

Percolation and jamming phenomena are investigated for random sequential deposition of rectangular needles on d = 2 square lattices. Associated thresholds p(c)(perc) and p(c)(jam) are determined for...

Heat and Charge Transport in Envelopes of Weakly and Strongly Magnetized Neutron Stars (2000)

M. Kramer, N. Wex, R. Wielebinski, Alexander Potekhin

. Thermal and electrical electron conductivities are calculated for a broad range of physical parameters typical for envelopes of neutron stars. An appropriate eective electron-ion scattering...

Evolution on trees: a brief review about the extinctions of species, and the case of genocide in a Darwinistic punctuated equilibrium evolution model (1999)

Ausloos, Marcel, Kramer, M., Vandewalle, Nicolas

Numerical and theoretical investigations of species evolution in presence of extinction rules are recalled in the framework of punctuated equilibrium evolution models. Previous results, on the...

Binary Eclipsing Millisecond Pulsars: A Decade of Timing (1999)

M. Kramer, N. Wex, R. Wielebinski, David J. Nice, Zaven Arzoumanian, Stephen E. Thorsett

. We present results of long-term timing of eclipsing binaries PSR B1744 24A and PSR B1957+20 at Arecibo, the VLA, and Green Bank. Both pulsars exhibit irregularities in pulsar rotation and orbital...

Origin of pulsar radio emission -- I. High frequency data (1997)

M. Kramer, Kramer Xilouris, A. Jessner, D. R. Lorimer, R. Wielebinski, A. G. Lyne

. Using the pulse arrival times from pulsar observations made between 1.4 and 32 GHz, we constrain the location and size of the emission region. We demonstrate that for normal pulsars the magnetic...

Speciations and extinctions in a self-organizing critical model of tree-like evolution (1996)

Kramer, M., Vandewalle, Nicolas, Ausloos, Marcel

We study analytically a simple model of a self-organized critical evolution. The model considers both extinction and speciation events leading to the growth of phylogenetic-like trees. Through a...

Speciations and Extinctions in a Self-Organizing Critical Model of Tree-Like Evolution (1996)

Kramer, M., Vandewalle, N., Ausloos, M.

We study analytically a simple model of a self-organized critical evolution. The model considers both extinction and speciation events leading to the growth of phylogenetic-like trees. Through a...

Speciations and Extinctions in a Self-Organizing Critical Model of Tree-Like Evolution (1996)

Kramer, M., Vandewalle, N., Ausloos, M.

We study analytically a simple model of a self-organized critical evolution. The model considers both extinction and speciation events leading to the growth of phylogenetic-like trees. Through a...

Tobacco Use in California: An Evaluation of the Tobacco Control Program, 1989-1993. A Report to the California Department of Health Services (1994)

Pierce, JP, Evans, N, Farkas, AJ, Cavin, SW, Berry, C, Kramer, M, ...

TOBACCO USE IN CALIFORNIA DETAILED FINDINGS SUMMARIZED BY CHAPTER Chapter 4. ASSESSING PROGRESS TOWARD PROGRAM GOALS 1. Between 1990 and 1993, the proportion of California children and nonsmoking...

&gamma;&gamma; Physics (1991)

P. Aurenche, Conveners P. Aurenche, G. A. Schuler, E. Boudinov, A. Buijs, M. Cacciari, ...

this report to extrapolate the published results to a total charm cross section. Some caution is in order however when comparing theory and the results of different experiments in this way. This...

Investigations of the Carcinogenicity of the LH-RH Analog Buserelin (HOE 766) in Rats Using the Subcutaneous Route of Administration (1987)

DONAUBAUER, H. H., KRAMER, M., KRIEG, K., MAYER, D., VON RECHENBERG, W., SANDOW, J., ...

A carcinogenicity study with the LH-RH analog buserelin (HOE 766) was conducted in male and female Wistar rats. The compound was administered subcutaneously daily for a period of 24 months to groups...

T cell-specific suppressor factor(s) with regulatory influence on interleukin 2 production and function (1982)

Kramer, M., Koszinowski, Ulrich H.

In this study we report that alloantigen-activated spleen cells produce both amplifying and suppressive factors under the same conditions. Both types of soluble mediators--as detected in different...

Selective inhibition of T suppressor-cell function by a monosaccharide (1981)

Kramer, M., Koszinowski, Ulrich H.

Interactions between regulatory T lymphocytes and other cells are assumed to occur at the level of the cell surface. T cells which suppress the generation of specifically effector cells have been...

Toxicology of cefotaxime in comparison to other cephalosporins (1980)

Doerr, B. I., Glomot, R., Kief, H., Kramer, M., Sakaguchi, T.

Cefotaxime is very well tolerated in animals, the LD50 in rats and mice following intravenous administration is in the range of 9 to 10 g/kg. This is unusual for a chemotherapeutic agent Even the...