163,278 research outputs found
A New Enantioselective Synthetic Approach to ß-Aminothio-compounds via Enantioselective Reduction of N,S-Heterocyclic Imines
Reiners I, Gröger H, Martens J. A New Enantioselective Synthetic Approach to ß-Aminothio-compounds via Enantioselective Reduction of N,S-Heterocyclic Imines. J. Prakt. Chem. 1997;339:541-546
[Report to Chief J. E. Curry, by an unknown author #1]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
[Report to Chief J. E. Curry, by an unknown author #2]
Report to Chief J. E. Curry, by an unknown author. The report contains a list of officers who gave depositions to the United States Attorney
Sociodemographic factors influencing the use of e-health in people with chronic diseases - summary
In deze literatuurstudie werden vier databanken doorzocht met behulp van trefwoorden zoals chronic disease, e-health, factors en suggested interventions. Kwalitatieve, kwantitatieve en mixed methods-studies werden meegenomen. Uit de data van de 22 artikelen die werden geïncludeerd in de studie, blijken leeftijd, geslacht, inkomen, opleidingsniveau, etnische achtergrond en woonplaats (stad of platteland) in meer of mindere mate van invloed te zijn op het gebruik van e-health. Het artikel is een Nederlandstalige samenvatting van het artikel: Reiners, Sturm, Bouw & Wouters (2019) uit Int J Environ Res Public Health 2019;16(4
Murder on the mountain: author talk with Peter J. Wosh
Author talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
Mr. Melvin J. Collier, RWWL AUC, June 2011
This video is a conversation with Mr. Melvin J. Collier. Mr. Collier talks about his book, "From Mississippi to Africa: A Journey of Discovery". Daniel Le, AUC Woodruff Library, is the interviewer
Rapid magnetic flux variability on the flare star CN Leonis
We present UVES/VLT observations of the nearby flare star
CN Leo covering the Wing-Ford FeH band near 1 μm with high
spectral resolution. Some of the FeH absorption lines in this band
are magnetically sensitive and allow a measurement of the mean
magnetic flux on CN Leo. Our observations, covering three nights
separated by 48 hours each, allow a clear detection of a mean
magnetic field of Bf ≈ 2.2 kG. The differential flux
measurements show a night-to-night variability with extremely high
significance. Finally, our data strongly suggest magnetic flux
variability on time scales as low as 6 hours in line with
chromospheric variability
THE RADIO ACTIVITY-ROTATION RELATION OF ULTRACOOL DWARFS
We present a new radio survey of about 100 late-M and L dwarfs undertaken with the Very Large Array. The sample was chosen to explore the role of rotation in the radio activity of ultracool dwarfs. As part of the survey we discovered radio emission from three new objects, 2MASS J 0518113-310153 (M6.5), 2MASS J 0952219-192431 (M7), and 2MASS J 1314203+132001 (M7), and made an additional detection of LP 349-25 (M8). Combining the new sample with results from our previous studies and from the literature, we compile the largest sample to date of ultracool dwarfs with radio observations and measured rotation velocities (167 objects). In the spectral type range M0-M6 we find a radio activity-rotation relation, with saturation at L-rad/L-bol approximate to 10(-7.5) above v sin i approximate to 5 km s(-1), similar to the relation in Ha and X-rays. However, at spectral types greater than or similar to M7 the ratio of radio to bolometric luminosity increases significantly regardless of rotation velocity, and the scatter in radio luminosity increases. In particular, while the most rapid rotators (v sin i greater than or similar to 20 km s(-1)) exhibit "super-saturation" in X-rays and Ha, this effect is not seen in the radio. We also find that ultracool dwarfs with v sin i greater than or similar to 20 km s(-1) have a higher radio detection fraction by about a factor of three compared to objects with v sin i less than or similar to 10 km s(-1). When measured in terms of the Rossby number (Ro), the radio activity-rotation relation follows a single trend and with no apparent saturation from G to L dwarfs and down to Ro similar to 10(-3); in X-rays and Ha there is clear saturation at Ro less than or similar to 0.1, with super-saturation beyond M7. A similar trend is observed for the radio surface flux (L-rad/R- (2)) as a function of Ro. The continued role of rotation in the overall level of radio activity and in the fraction of active sources, and the single trend of L-rad/L-bol and L-rad/R- (2) as a function of Ro from G to L dwarfs, indicates that rotation effects are important in regulating the topology or strength of magnetic fields in at least some fully convective dwarfs. The fact that not all rapid rotators are detected in the radio provides additional support to the idea of dual dynamo states proposed from spectropolarimetric observations.National Science Foundation [AST-1008361]; DFG [RE 1664/4-1
Ca II HK emission in rapidly rotating stars
We present measurements of chromospheric Ca i
A Tripartite Post-Recession Rebalancing
In this latest Advance & Rutgers Report, entitled “A Tripartite Post-Recession Rebalancing,” Dean James W. Hughes and Professor Joseph J. Seneca deliver an incisive assessment of the current market conditions and obstacles in the path of our economic recovery. They offer a statistical cautionary tale that the private and public sector need to hear and acknowledge in order for the economy to make continued progress.This report was published as Issue Paper Number 7, November 2011, in Advance & Rutgers Report
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