852 research outputs found
Application to the Department of Housing and Urban Development for a Grant to Plan a Comprehensive Model Cities Program Palatka Florida
Palatka, Florida
Application to the Department of Housing & Urban Development for a grant to plan a comprehensive model cities program. Palatka, Florida, Harold Williams, city manager. Palatka, Fla. : [s.n.], 1968. Includes chapter: Population growth and characteristics: an examination of the historical growth since 1860 and the characteristics of Palatka\u27s present day citizens with a projection into the future
A perianalis fisztulázó Crohn-betegség konzervatív kezelési lehetőségei = Conservative Treatment Modalities of Perianal Fistulizing Crohn's Disease
A perianalis fisztulák a Crohn-betegség ismert szövődményei, jelentős morbiditással és életminőségromlással járnak. Különböző osztályozások léteznek, amelyek alapvetően a külső és belső anális sphincterhez való viszonyon alapulnak. A perianalis fisztulák optimális kezeléséhez a gasztroenterológus és sebész együttműködése szükséges. A gyógyszeres kezelés előterében az antibiotikumok, a biológiai szerek és az immunmodulátorok állnak. A hagyományos, biológiai gyógyszeres és sebészi kezelések ellenére a legjobb eredmények 50% körüli fisztulagyógyulást mutatnak. Az új sejtterápiás kezelési lehetőségek reménykeltőek a kedvezőbb kimenetel eléréséhez
All Sky Camera for the CTA Atmospheric Calibration work package
The All Sky Camera (ASC) is a passive non-invasive imaging system for rapid night sky atmosphere monitoring. By design, the operation of the ASC will not affect the measurement procedure of the CTA observatory, for which we discuss its application in this report. The data collected should enable improved productivity and increased measurement time for the CTA observatory. The goal of ASC is to identify cloud position, atmosphere attenuation and time evolution of the sky condition, working within the CTA Central Calibration Facilities (CCF) group. Clouds and atmosphere monitoring may allow near-future prediction of the night-sky quality, helping scheduling. Also, in the case of partly cloudy night sky the cameras will identify the uncovered regions of the sky during the operation time, and define potential observable sources that can be measured. By doing so, a higher productivity of the CTA observatory measurements may be possible
Detection of ultra-high energy cosmic ray showers with a single-pixel fluorescence telescope
We present a concept for large-area, low-cost detection of ultra-high energy
cosmic rays (UHECRs) with a Fluorescence detector Array of Single-pixel
Telescopes (FAST), addressing the requirements for the next generation of UHECR
experiments. In the FAST design, a large field of view is covered by a few
pixels at the focal plane of a mirror or Fresnel lens. We report first results
of a FAST prototype installed at the Telescope Array site, consisting of a
single 200 mm photomultiplier tube at the focal plane of a 1 m Fresnel lens
system taken from the prototype of the JEM-EUSO experiment. The FAST prototype
took data for 19 nights, demonstrating remarkable operational stability. We
detected laser shots at distances of several kilometres as well as 16 highly
significant UHECR shower candidates.Comment: Accepted for publication in Astroparticle Physic
The bright optical flash from GRB 060117
We present a discovery and observation of an extraordinarily bright prompt
optical emission of the GRB 060117 obtained by a wide-field camera atop the
robotic telescope FRAM of the Pierre Auger Observatory from 2 to 10 minutes
after the GRB. We found rapid average temporal flux decay of alpha = -1.7 +-
0.1 and a peak brightness R = 10.1 mag. Later observations by other instruments
set a strong limit on the optical and radio transient fluxes, unveiling an
unexpectedly rapid further decay. We present an interpretation featuring a
relatively steep electron-distribution parameter p ~ 3.0 and providing a
straightforward solution for the overall fast decay of this optical transient
as a transition between reverse and forward shock.Comment: Accepted to A&A, 4 pages, corected few typos pointed out by X.F. W
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