7,606 research outputs found
Inventory or Stockcheck?
You have been assigned to physically count every learning resource item currently shelved in your collection. How would you respond to this seemingly impossible and intimidating task? Without a doubt, you might be overwhelmed as I was. Upon receiving my marching orders to begin counting our main campus collection, I looked around and just stared at row upon row, and shelf upon shelf, cabinet upon cabinet filled with books, video cassette tapes, audio cassette tapes, and books; oh the books. Not to forget slides, microfilm, compact discs, etc. So, where do you begin? For me, I chose to begin counting the section closest to my desk. Rather than let this daunting task discourage me, I just started counting and improvised as the need arose. I knew that I could count everything; I just had to put together a workable plan. The article that follows is a brief description of our library inventory project. All who participated became better acquainted with our main campus collection. My job description requires that I engage in counting our growing collection once every five years. Right now, I’m not counting the days until the next five years begins
STATE OF THE FARM ECONOMY: HOW GOOD OR HOW BAD?
Community/Rural/Urban Development,
SETTING THE STAGE: AMERICAN AGRICULTURE TODAY AND WHAT WE CAN EXPECT OVER THE NEXT 5 TO 10 YEARS
According to estimates made by the Food and Agricultural Policy Research Institute in March of 1999, there are several macro factors that will significantly impact U.S. and global agriculture over the next decade. Factors leading to near-term price pressure are contrasted with likely implications for the longer term. In general, the longer run estimated consequences for global agriculture are more positive, but with the strong likelihood of low price pressure lingering over the next two to three years.agricultural policy, farm financial pressure, global agriculture, global economics, technology, Agricultural and Food Policy, Agricultural Finance,
SOCIAL INDICATORS, BASEBOOK, BASELINE AND INDICATOR MODEL
Research Methods/ Statistical Methods,
Carbon monoxide in the distantly active Centaur (60558) 174P/Echeclus at 6 AU
(60558) 174P/Echeclus is an unusual object that belongs to a class of minor
planets called Centaurs, which may be intermediate between Kuiper Belt Objects
and Jupiter Family comets. It is sporadically active throughout its orbit at
distances too far for water ice to sublimate, the source of activity for most
comets. Thus, its coma must be triggered by another mechanism. In 2005,
Echeclus had a strong outburst with peculiar behavior that raised questions
about the nucleus homogeneity. In order to test nucleus models, we performed
the most sensitive search to date for the highly volatile CO molecule via its
J=2-1 emission toward Echeclus during 2016 May-June (at 6.1 astronomical units
from the Sun) using the Arizona Radio Observatory 10-m Submillimeter Telescope.
We obtained a 3.6-sigma detection with a slightly blue-shifted (delta v = -0.55
+- 0.1 km/s) and narrow (FWHM = 0.53 +- 0.23 km/s) line. The data are
consistent with emission from a cold gas from the sunward side of the nucleus,
as seen in two other comets at 6 AU. We derive a production rate of Q(CO) =
(7.7 +- 3.3)x10^26 mol/s, which is capable of driving the estimated dust
production rates. Echeclus CO outgassing rate is ~40 times lower than what is
typically seen for another Centaur at this distance, 29P/Schwassmann-Wachmann
1. We also used the IRAM 30-m telescope to search for the CO J=2-1 line, and
derive an upper limit that is above the SMT detection. Compared to the
relatively unprocessed comet C/1995 O1 (Hale-Bopp), Echeclus produces
significantly less CO, as do Chiron and four other Centaurs.Comment: 27 pages, 3 figures, 1 table. Accepted for publication in The
Astronomical Journa
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