Results 21 to 30 of about 1,271 (117)

Woody expansion facilitates liana expansion and affects physical structure in temperate coastal communities

Ecosphere, Volume 7, Issue 6, June 2016., 2016
Abstract Coastal ecosystems in general, and barrier islands in particular, offer unique opportunities to observe ecological patterns and processes in spatially and temporally compressed settings. Harsh abiotic conditions and frequent disturbances limit the number of resident species, and highly dynamic geomorphology may result in a space‐for‐time ...
Spencer N. Bissett, Julie C. Zinnert, Donald R. Young   +2 more
wiley   +1 more source

Small Molecules from Nature Targeting G‐Protein Coupled Cannabinoid Receptors: Potential Leads for Drug Discovery and Development

Evidence-Based Complementary and Alternative Medicine, Volume 2015, Issue 1, 2015., 2015
The cannabinoid molecules are derived from Cannabis sativa plant which acts on the cannabinoid receptors types 1 and 2 (CB1 and CB2) which have been explored as potential therapeutic targets for drug discovery and development. Currently, there are numerous cannabinoid based synthetic drugs used in clinical practice like the popular ones such as ...
Charu Sharma, Bassem Sadek, Sameer N. Goyal, Satyesh Sinha, Mohammad Amjad Kamal, Shreesh Ojha, Ki-Wan Oh   +6 more
wiley   +1 more source

Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae [PDF]

, 1998
We report the first result from our survey of rapid variability in symbiotic binaries: the discovery of a persistent oscillation at P=1682.6 +- 0.6 s in the optical emission from the prototype symbiotic, Z Andromedae.
Duschl W. J., Duschl W. J., Formiggini L., J. L. Sokoloski, Lars Bildsten, Meyer-Hofmeister E., Mikolajewska J., Mikolajewski M., Mikolajewski M., Murset U., Robinson K., Schmid H. M., Tomov T.   +12 more
core   +2 more sources

Rapid variability of accretion in AM Herculis [PDF]

, 2002
We present the last pointed observation of AM Her carried out during the life of the BeppoSAX satellite. It was bright at the beginning of the observation, but dropped to the lowest X-ray level ever observed so far.
B. T. Gänsicke, Bailey, Boella, D. de Martino, de Martino, Fleming, G. Matt, Gänsicke, Gänsicke, Gänsicke, Heise, Hessman, J. M. Bonnet-Bidaud, King, Livio, M. Mouchet, Matt, Pallavicini, Patterson, R. Silvotti, Schmitt, Still   +21 more
core   +2 more sources

Continued Hyperactivity on the Secondary Star of AM Herculis

The Astronomical Journal, 2006
We present observations in the red region of the spectrum of the magnetic cataclysmic variable prototype AM Her during its 2005 low state. We confirm the unexpected structure of the Hα emission line and verify most of the conclusions of our earlier study: the line is typically triple-peaked, and the radial velocity curves of all three components are ...
S. Kafka, R. K. Honeycutt, S. B. Howell
openaire   +1 more source

XMM-Newton observations of EF Eridani: the textbook example of low-accretion rate polars [PDF]

, 2007
Archival X-ray observations of EF Eridani obtained in a low state revealed distinct X-ray detections at a luminosity L_X ~ 2 10^{29} erg/s, three orders of magnitude below its high state value. The plasma temperature was found to be as low as $kT \loa 2$
Koester, D., Schwope, A. D., Staude, A., Vogel, J.   +3 more
core   +2 more sources

Period doubling and Blazhko modulation in BL Herculis hydrodynamic models

, 2012
We present the hydrodynamic BL Herculis-type models which display a long-term modulation of pulsation amplitudes and phases. The modulation is either strictly periodic or it is quasi-periodic, with the modulation period and modulation pattern varying ...
Moskalik, P., Smolec, R.
core   +1 more source

X-Shooting EF Eridani: further evidence for a massive white dwarf and a sub-stellar secondary [PDF]

, 2009
High resolution spectral observations of the polar EF Eridani obtained in a low state with X-Shooter revealed narrow emission lines from the irradiated secondary.
A. D. Schwope, Beuermann, Beuermann, Beuermann, Brinkworth, Campbell, Catalán, Cropper, Griffiths, Gänsicke, Harrison, Harrison, Hoard, Howell, Howell, Howell, Hutchings, Kelson, Knigge, Knigge, L. Christensen, Littlefair, Mukai, Mukai, Piirola, Schwope, Schwope, Szkody, Tapia, Thorstensen, Verbunt, Wickramasinghe, Williams   +32 more
core   +3 more sources

1RXSJ062518.2+733433: A bright, soft intermediate polar

, 2003
We present the results of 50 hours time-resolved R-band photometry of the ROSAT all-sky survey source 1RXSJ062518.2+733433. The source was identified by Wei et al. (1999) as a cataclysmic variable.
Hambaryan, V., Krumpe, M., Schwarz, R., Schwope, A. D., Staude, A.   +4 more
core   +2 more sources

Kepler photometry of RRc stars: peculiar double-mode pulsations and period doubling [PDF]

, 2014
We present the analysis of four first overtone RR Lyrae stars observed with the Kepler space telescope, based on data obtained over nearly 2.5 yr. All four stars are found to be multiperiodic.
Bailey, Benkő, Benkő, Benkő, Berdnikov, Bergé, Blazhko, Borucki, Bowman, Brown, Buchler, Buchler, C.-C. Ngeow, Caldwell, Chadid, D. W. Kurtz, Derekas, Dziembowski, Dziembowski, Dziembowski, E. Guggenberger, G. Kopacki, Gilliland, Gruberbauer, Guggenberger, Haas, Howell, J. M. Benkő, J. M. Nemec, Jenkins, Jenkins, Jurcsik, Jurcsik, Jurcsik, K. Kolenberg, Koch, Kolenberg, Kolenberg, Kolenberg, Kolláth, Kolláth, Kovács, Kovács, Kovács, L. Molnár, Le Borgne, Lub, M. Chadid, Mizerski, Molnár, Molnár, Morgan, Moskalik, Moskalik, Moskalik, Moskalik, Moskalik, Moskalik, Nagy, Nemec, Nemec, Netzel, Olech, Olech, P. Moskalik, Payne-Gaposchkin, Pigulski, Popielski, R. Smolec, R. Szabó, Rappaport, S. M. Kanbur, Simon, Smolec, Smolec, Smolec, Smolec, Smolec, Soszyński, Soszyński, Soszyński, Soszyński, Soszyński, Szabó, Szabó, Szabó, Süveges, Tsesevich, Van Hoolst, Walker, Y.-B. Jeon   +90 more
core   +3 more sources