We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed ...using photometry from the EulerCam instrument on the Swiss Euler 1.2-m telescope and the TRAPPIST telescope, and spectroscopy obtained with the CORALIE spectrograph. The planets discovered are hot Jupiter systems with orbital periods in the range 2.17 to 5.75 days, masses from 0.3M\(_{\rm Jup}\) to 1.2M\(_{\rm Jup}\) and with radii from 1R\(_{\rm Jup}\) to 1.5R\(_{\rm Jup}\). These planets orbit bright stars (V = 11-13) with spectral types in the range F9 to G4. WASP-126 is the brightest planetary system in this sample and hosts a low-mass planet with a large radius (0.3 M\(_{\rm Jup}\) , 0.95R\(_{\rm Jup}\)), making it a good target for transmission spectroscopy. The high density of WASP-129 A suggests that it is a helium-rich star similar to HAT-P-11 A. WASP-133 has an enhanced surface lithium abundance compared to other old G-type stars, particularly other planet host stars. These planetary systems are good targets for follow-up observations with ground-based and space-based facilities to study their atmospheric and dynamical properties.
Background Gemfibrozil reduces plasma triglycerides and raises high-density lipoprotein cholesterol (HDL-C) in adults and also reduces the incidence of cardiovascular endpoints in adults. Its ...efficacy in improving lipid abnormalities has not been evaluated in children. Objective Our purpose was to investigate whether gemfibrozil would lower triglycerides and raise HDL-C with minimal adverse effects in a pediatric population with metabolic syndrome. Methods We conducted a retrospective study of 47 pediatric patients with metabolic syndrome who started gemfibrozil treatment, 1200 mg/day because of failure or lack of interest in therapeutic lifestyle changes. Eligibility required patients to be younger than 21 years of age, and have pretreatment and on-treatment fasting lipid profiles. Data recorded included age at start of treatment, blood pressure, body mass index, waist circumference, percent body fat, total plasma cholesterol, HDL, low-density lipoprotein, triglycerides, alanine aminotransferase, and aspartate aminotransferase. Treatment duration was elapsed time between starting gemfibrozil and the last clinic visit. Results Average age of the study cohort was 14 years and mean duration on medication was 249 days. Those patients who had pretreatment and on-treatment plasma lipid data (33 of 47) were included in an analysis for efficacy. All 47 patients were monitored for safety. Mean triglycerides decreased by 57%: 426 (standard error of mean = 33.6) to 184 mg/dL (standard error of mean = 19) ( P < 0.0001). Mean HDL increased by 20%: 35 to 42 mg/dL ( P < 0.001). Body composition changes were insignificant, indicating that the lipid changes can be attributed to gemfibrozil. Two of forty-seven patients reported muscle pain from the drug, one of whom was considered to have had a possible adverse effect from the medication as indicated by muscle pain. Conclusion Gemfibrozil significantly lowers triglycerides and raises HDL with reasonable safety in a pediatric population with metabolic syndrome.
INTRODUCTION: A review of MEDEVAC operations have identified potential areas for improvement, concentrating on enhanced flight medic training and medical oversight. Civilian programs fly with two ...highly trained medical technicians, nurses or physicians, equipped with state of the art medical equipment. Army helicopters fly with one lesser-trained medical crewmember and less equipment. The 6-101 Charlie Company deployed to Afghanistan in December 2007. Afghanistan has Forward Surgical Teams that routinely perform surgery on critically injured Soldiers and civilians. The MEDEVAC routinely flies these complex and critically ill post op patients. METHODS: Data were gathered at Bagram on the MEDEVAC mission profiles. An emergency medicine physician was added to the Medical Company. He conducted training, developed protocols, and collected data from run sheets. RESULTS: From January-Jun 08, MEDEVAC flew 292 missions. Traumatic injuries were 72%(210/292), 28% (82/292) were medical transfers. Of the trauma, 56%(117/210) were IED/explosive injuries, 26%(54/210) were Gun Shot Wounds, 11%(24/210) were Motor Vehicle Accidents, 5%(11/210) were falls, and 2%(4/210) were burns. Of the medical transfers, 84%(69/82) required a ventilator, 21%(69/292) were post-op patients. There were 15 Intubations, 3 cricothyroidotomies, 5 needle decompressions, 9 full codes with 3 defibrillations, and 85%(248/292) required advanced medications (morphine, fentanyl, propofol, midazolam, ondansetron, vecuronium, etomidate, and mannitol).
We present new UBV(RI)_C photometry of 22 stars that host transiting planets, 19 of which were discovered by the WASP survey. We use these data together with 2MASS JHK_S photometry to estimate the ...effective temperature of these stars using the infrared flux method. We find that the effective temperature estimates for stars discovered by the WASP survey based on the analysis of spectra are reliable to better than their quoted uncertainties.
We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we find likely to be ...eccentric (e = 0.059+0.025-0.018) around an F5 star. WASP-122b is a hot-Jupiter (1.37MJup, 1.79RJup) in a 1.7-day orbit about a G4 star. Our predicted transit depth variation cause by the atmosphere of WASP-122b suggests it is well suited to characterisation. WASP-123b is a hot-Jupiter (0.92MJup, 1.33RJup) in a 3.0-day orbit around an old (~ 7 Gyr) G5 star.
We report the identification of 61.45 d^-1 (711.2 mu Hz) oscillations, with amplitudes of 62.6-mu mag, in KIC 4768731 (HD 225914) using Kepler photometry. This relatively bright (V=9.17) chemically ...peculiar star with spectral type A5 Vp SrCr(Eu) has previously been found to exhibit rotational modulation with a period of 5.21 d. Fourier analysis reveals a simple dipole pulsator with an amplitude that has remained stable over a 4-yr time span, but with a frequency that is variable. Analysis of high-resolution spectra yields stellar parameters of T_eff = 8100 +/- 200 K, log g = 4.0 +/- 0.2, Fe/H = +0.31 +/- 0.24 and v sin i = 14.8 +/- 1.6 km/s. Line profile variations caused by rotation are also evident. Lines of Sr, Cr, Eu, Mg and Si are strongest when the star is brightest, while Y and Ba vary in anti-phase with the other elements. The abundances of rare earth elements are only modestly enhanced compared to other roAp stars of similar T_eff and log g. Radial velocities in the literature suggest a significant change over the past 30 yr, but the radial velocities presented here show no significant change over a period of 4 yr.
We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18 +/- 0.02 M_J and radius 1.37 +/- 0.04 R_J. This is one of the least ...massive planets discovered by the WASP project. It orbits a bright host star (Vmag = 10.16) of spectral type G5 with a period of 4.17 days. WASP-127b is a low-density planet that has an extended atmosphere with a scale height of 2500 +/- 400 km, making it an ideal candidate for transmission spectroscopy. WASP-136b and WASP-138b are both hot Jupiters with mass and radii of 1.51 +/- 0.08 M_J and 1.38 +/- 0.16 R_J, and 1.22 +/- 0.08 M_J and 1.09 +/- 0.05 R_J, respectively. WASP-136b is in a 5.22-day orbit around an F9 subgiant star with a mass of 1.41 +/- 0.07 M_sun and a radius of 2.21 +/- 0.22 R_sun. The discovery of WASP-136b could help constrain the characteristics of the giant planet population around evolved stars. WASP-138b orbits an F7 star with a period of 3.63 days. Its radius agrees with theoretical values from standard models, suggesting the presence of a heavy element core with a mass of ~10 M_earth. The discovery of these new planets helps in exploring the diverse compositional range of short-period planets, and will aid our understanding of the physical characteristics of both gas giants and low-density planets.
V1094 Tau is bright eclipsing binary star with an orbital period close to 9 days containing two stars similar to the Sun. Our aim is to test models of Sun-like stars using precise and accurate mass ...and radius measurements for both stars in V1094 Tau. We present new spectroscopy of V1094 Tau which we use to estimate the effective temperatures of both stars and to refine their spectroscopic orbits. We also present new, high-quality photometry covering both eclipses of V1094 Tau in the Stroemgren uvby system and in the Johnson V-band. The masses, radii and effective temperatures of the stars in V1094 Tau are found to be M\(_A\) = 1.0965 \(\pm\) 0.0040 M\(_{\odot}\), R\(_A\) = 1.4109 \(\pm\) 0.0058 R\(_{\odot}\), T\(_{\rm eff,A}\) = 5850 \(\pm\) 100 K, and M\(_B\) = 1.0120 \(\pm\) 0.0028 M\(_{\odot}\), R\(_B\) = 1.1063 \(\pm\) 0.0066 R\(_{\odot}\), T\(_{\rm eff,B}\) = 5700 \(\pm\) 100 K. An analysis of the times of mid-eclipse and the radial velocity data reveals apsidal motion with a period of 14500 \(\pm\) 3700 years. The observed masses, radii and effective temperatures are consistent with stellar models for an age \(\approx\) 6 Gyr if the stars are assumed to have a metallicity similar to the Sun. This estimate is in reasonable agreement with our estimate of the metallicity derived using Stroemgren photometry and treating the binary as a single star (Fe/H \(= -0.09 \pm 0.11\)). The rotation velocities of the stars suggest that V1094 Tau is close to the limit at which tidal interactions between the stars force them to rotate pseudo-synchronously with the orbital motion.
