Inspiralling compact binaries in quasi-elliptical orbits: The complete third post-Newtonian energy flux

The instantaneous contributions to the 3PN gravitational wave luminosity from the inspiral phase of a binary system of compact objects moving in a quasi elliptical orbit is computed using the multipolar post-Minkowskian wave generation formalism. The necessary inputs for this calculation include the 3PN accurate mass quadrupole moment for general orbits and the mass octupole and current quadrupole moments at 2PN. Using the recently obtained 3PN quasi-Keplerian representation of elliptical orbits the flux is averaged over the binary's orbit. Supplementing this by the important hereditary contributions arising from tails, tails-of-tails and tails squared terms calculated in a previous paper, the complete 3PN energy flux is obtained. The final result presented in this paper would be needed for the construction of ready-to-use templates for binaries moving on non-circular orbits, a plausible class of sources not only for the space based detectors like LISA but also for the ground based ones.Comment: 40 pages. Minor changes in text throughout. Minor typos in Eqs. (3.3b), (7.7f), (8.19d) and (8.20) corrected. Matches the published versio

Cause Identification of Electromagnetic Transient Events using Spatiotemporal Feature Learning

This paper presents a spatiotemporal unsupervised feature learning method for cause identification of electromagnetic transient events (EMTE) in power grids. The proposed method is formulated based on the availability of time-synchronized high-frequency measurement, and using the convolutional neural network (CNN) as the spatiotemporal feature representation along with softmax function. Despite the existing threshold-based, or energy-based events analysis methods, such as support vector machine (SVM), autoencoder, and tapered multi-layer perception (t-MLP) neural network, the proposed feature learning is carried out with respect to both time and space. The effectiveness of the proposed feature learning and the subsequent cause identification is validated through the EMTP simulation of different events such as line energization, capacitor bank energization, lightning, fault, and high-impedance fault in the IEEE 30-bus, and the real-time digital simulation (RTDS) of the WSCC 9-bus system.Comment: 9 pages, 7 figure

Factors associated with self-reported failure of binding to release among recreational skiers: an epidemiological study

Female recreational skiers have twice the knee injury incidence of male skiers and the reported proportion of failure of binding release is considerably higher among females. It remains unclear whether this sex difference belongs only to an injury of the knee joint or also to other body parts. Therefore, a total of 1369 injured skiers (43.1% females) were interviewed on sex, age, date of last binding adjustment, skill level, risk taking behaviour and injured body part and binding release at the moment of accident.Failure of binding release was reported within 39.9% of all cases at the moment of the accident. An actual binding adjustment was significantly associated with a decreasing proportion of failure of binding release. Failure of binding release was significantly higher for females compared to males (51 vs. 32%) and for cautious compared to risky skiers (42 vs. 33%) while sexes did not differ regarding the date of the last binding adjustment. Regarding knee injuries, female skiers showed a higher proportion of failure of binding release compared to male skiers (61 vs. 46%) with an OR of 1.8 (95% CI, 1.2-2.8).  In conclusion, failure of binding release was significantly more frequent in females compared to males, irrespective of the injured body part although sexes did not differ with regard to the date of the last binding adjustment

4D Tropospheric Tomography using GPS Estimated Slant Delays

Tomographic techniques are successfully applied to obtain 4D images of the tropospheric refractivity in a local dense network. In the lower atmosphere both the small height and time scales and the non-dispersive nature of tropospheric delays require a more careful analysis of the data. We show how GPS data is processed to obtain the tropospheric slant delays using the GIPSY-OASIS II software and define the concept of pseudo-wet delays, which will be the observables in the tomographic software. We then discuss the inverse problem in the 3D stochastic tomography, using simulated refractivity fields to test the system and the impact of noise. Finally, we use data from the Kilauea network in Hawaii and a local 4x4x41-voxel grid on a region of 400 Km$^2$ and 15 Km in height to produce 4D refractivity fields. Results are compared with ECMWF forecast.Comment: 9 pages, 6 figures (2 color

Binaries with total eclipses in the LMC: potential targets for spectroscopy

35 Eclipsing binaries presenting unambiguous total eclipses were selected from a subsample of the list of Wyrzykowski et al. (2003). The photometric elements are given for the I curve in DiA photometry, as well as approximate Teff and masses of the components. The interest of these systems is stressed in view of future spectroscopic observations.Comment: 4 pages, 1 figure; poster presented at the conference "Close binaries in the 21st Century: new opportunities and challenges", Syros, 27-30 June 200

Role of intron 1 in smooth muscle α-actin transcriptional regulation in activated mesangial cells in vivo

Role of intron 1 in smooth muscle α-actin transcriptional regulation in activated mesangial cells in vivo.BackgroundThe activation of glomerular mesangial cells is one of the early, important features of progressive glomerular disease. Smooth muscle α-actin (SMαA) is an excellent marker of activated mesangial cells. However, the mechanisms of SMαA regulation are only available from in vitro investigation.MethodsWe examined in vivo promoter analysis of the SMαA gene-utilizing transgenic mice harboring different promoter regions of the SMαA gene fused to chloramphenicol acetyl transferase (CAT). CAT activities were tested in primary cultured mesangial cells and in glomerular legions of Habu venom glomerulonephritis.ResultsThe DNA sequence -891 to +3828, which contains exon 1, intron 1, and the first 14bp of exon 2 in addition to the 5′-flanking sequence of the SMαA gene, induced high levels of transcription in activated mesangial cells in in vivo habu venom glomerulonephritis and in cultured mesangial cells derived from transgenic mice. The DNA region -891 to -124 was a positive element in mesangial cells derived from transgenic mice. Deletions (3316 or 137bp) in intron 1 reduced transcription to undetectable levels. The 137bp sequence is highly conserved among several species, containing one CArG box element, which is one of the key motifs for transcriptional activation of contractile-related proteins. In vitro transfection analysis failed to demonstrate these positive effects of intron 1 and region -891 to -124.ConclusionsIn vivo promoter analysis of the SMαA gene provided new information about the transcriptional regulation of SMαA in activated mesangial cells. The DNA region -891 to -124 has a positive effect on SMαA transcription in cultured mesangial cells. The intron 1 region (+1088 to +1224) plays a pivotal role in SMαA transcription in activated mesangial cells in vivo. Further analysis of this conserved region in intron 1, including the CArG motif, will be of great value in understanding the molecular mechanisms of mesangial activation