Continuing Education for What?

Continuing education should mean continuing self-education, not continuing instruction. If this desirable goal is to be accomplished, there must be movement away from the content model, which encourages dependence upon teachers, to a process model, which demands a significant measure of self-reliance--a shift away from preoccupation with courses and methods, toward an augmented concern for educational diagnosis and individualized therapy. It does not mean an immediate abandonment of present program forms, but it is likely to be accompanied by a slow erosion of the faith which presently supports them

Art Corner: “Our Children, Our World, Our Future”

George E. Miller II, a child advocacy artist based out of northeast Florida, displays his artwork in this issue. His colorful illustrations are vibrant, multicultural, and uplifting. He uses his artistic gift to draw attention to educational concerns such as literacy, dropout prevention, mental health, child abuse prevention, and homelessness. His current contribution illustrates children looking ahead to the future with hope

Art Corner: “El Mundo Es Mio: The World Is Mine” and “It Takes An Entire Village to Raise a Child”

George E. Miller II, a child advocacy artist based out of northeast Florida, displays his artwork in this issue. His colorful illustrations are vibrant, multicultural, and uplifting. He uses his artistic gift to draw attention to educational concerns such as literacy, dropout prevention, mental health, child abuse prevention, and homelessness

Diode injection - seeded, 940 nanometer (nm), titanium - sapphire laser for H2O DIAL (differential absorption lidar), measurements

Differential absorption of laser radiation by various molecular species represents both a selective and a sensitive method of measuring specific atmospheric constituents. DIAL measurements can be carried out via two different means. Both involve using two laser pulses with slightly different wavelengths (lambda), (one lambda at a strong absorption line of the molecule of interest, the other detuned into the wing of the line), and comparing the attenuation of the pulses. One approach relies on scattering of the radiation from some conveniently located topographical target. In the other technique elastic scattering from atmospheric aerosols and particulates is used to return the radiation to the lidar receiver system. This case is referred to as the differential absorption and scattering technique, and is the technique we are interested in to measure water vapor at 940 nm. The 940 nm wavelength is extremely desirable to atmospheric scientist interested in accurate DIAL measurements of H2O in the upper and lower troposphere. Simulated measurements using approximately 940 nm and 815 nm lasers at a range of altitudes and experimental conditions are shown. By offering access to larger absorption cross-sections, injected seeded, 940 nm DIAL laser transmitters would allow for more accurate water profile measurements at altitudes from 6 to 16 km than is currently possible with 730 nm and 815 nm DIAL laser transmitters. We have demonstrated the operation of an injected seeded titanium-sapphire (TS) laser operating at approximately 940 nm with an energy of more than 90 mJ per pulse. The TS laser is pumped by a commercial, 600 mJ, 532 nm, 10 Hz Nd:YAG laser. The slope efficiency of the laser using a flat 50 percent R output coupler and a 10 m end-mirror is shown. The laser was injected seeded with a CW, AlGaAs, semiconductor diode laser which had an output of 83 mW. The CW diode seed beam was introduced into the TS laser cavity through a HR end-mirror. When the diode beam is aligned to the TS resonator, it controls the TS laser output wavelength and its spectral line width with the required resolution for DIAL applications. This work supports the need for the development of 940 nm, titanium-sapphire DIAL transmitters

Closed-Cycle, Frequency-Stable CO2 Laser Technology

These proceedings contain a collection of papers and comments presented at a workshop on technology associated with long-duration closed-cycle operation of frequency-stable, pulsed carbon dioxide lasers. This workshop was held at the NASA Langley Research Center June 10 to 12, 1986. The workshop, jointly sponsored by the National Aeronautics and Space Administration (NASA) and the Royal Signals and Radar Establishment (RSRE), was attended by 63 engineers and scientists from the United States and the United Kingdom. During the 2 1/2 days of the workshop, a number of issues relating to obtaining frequency-stable operation and to the catalytic control of laser gas chemistry were discussed, and specific recommendations concerning future activities were drafted

Measuring the Spin of GRS 1915+105 with Relativistic Disk Reflection

GRS 1915+105 harbors one of the most massive known stellar black holes in the Galaxy. In May 2007, we observed GRS 1915+105 for 117 ksec in the low/hard state using Suzaku. We collected and analyzed the data with the HXD/PIN and XIS cameras spanning the energy range from 2.3-55 keV. Fits to the spectra with simple models reveal strong disk reflection through an Fe K emission line and a Compton back-scattering hump. We report constraints on the spin parameter of the black hole in GRS 1915+105 using relativistic disk reflection models. The model for the soft X-ray spectrum (i.e. < 10 keV) suggests a/M = 0.56(2) and excludes zero spin at the 4 sigma level of confidence. The model for the full broadband spectrum suggests that the spin may be higher, a/M = 0.98(1) (1 sigma confidence), and again excludes zero spin at the 2 sigma level of confidence. We discuss these results in the context of other spin constraints and inner disk studies in GRS 1915+105.Comment: Accepted for publication in Ap

The Ursinus Weekly, June 8, 1931

Dr. William J. Shergold preaches animating baccalaureate sermon • Cornerstone laid on new science building • Board of Directors holds June meeting • David Lawrence delivers address at sixty-first annual commencement • Class of 1931 frolics at annual Class Day • Kugler wins annual junior oratorical prize • Varsity tossers garner two victories • Journey\u27s End presented by senior class • Rev. C. F. Deininger heads Alumni Association • Prizes awarded 1931 • Haydn\u27s The Seasons oratorio presentation • Mrs. F. I. Sheeder elected president of Woman\u27s Club • Alumni Athletic Club chooses G. F. Erb \u2727 president • Engaged • Baccalaureate degrees • 1931 tennis season marred by rain • Women\u27s tennis team has very successful year • The college in summer • Pupils of Music Department give recital Thursday evening • What some of 1931 will do • Winning ball team coached by Jing Johnson • Bear trackmen win trophyhttps://digitalcommons.ursinus.edu/weekly/2122/thumbnail.jp

The Ursinus Weekly, November 16, 1931

Ursinus cross country runners capture conference championship • Liberal arts college broadcast Saturday night • Bears rout Swarthmore to win final home game by 27-0 score • Christian workers convene at Ursinus • To honor Mr. Curtis Friday, November 20 • Elwyn C. Parlin to speak in chapel Wednesday • Dean Kline speaks at joint Y meeting • Hockeyites garner two decisive victories • Senior class dance celebrates grid victory • Frosh defeated by Allentown Prep 20-0 • Dr. Sturgis stresses peace in Armistice Day talk • Ursinus soccerites lose to West Chester teachers • Glenside churchmen banquet at Ursinus • Play presented at Trinity • William Tempest \u2735 led vespers • Sorority reunion at Trappe • English Club reviews recent plays • Report of the Ursinus teacher placement service • Eddie Faye talks at pep meeting • International Relations Club discusses Manchuria • Sir Herbert Ames to speak here December 3 • Frosh reserves defeat Darby High gridders 6-0https://digitalcommons.ursinus.edu/weekly/2068/thumbnail.jp

The Ursinus Weekly, May 4, 1931

Women\u27s Symphony Orchestra plays to large audience • Ursinus host to Montgomery schools • Ursinus represented at West Chester conference • Grizzly ball club downs Rutgers and Lebanon Valley in close games • Ursinus trackmen lose to Swarthmore, Wednesday • Tennis team drops first tilt to Drexel, 2-4 • Herbert Howells speaker at vespers • Frosh track team at conference meet • Canterbury pilgrims portrayed in pageant • Ursinus Glee Clubs sing at Wernersville • Campus improvement at Sprankle Hall • Full athletic program scheduled this week • Sunday school classes hold steak roast • Freshman officers chosen • Cast of May Day pageant announced • Dr. Baugh, of University of Pennsylvania, to lecture Wednesday • Miriam Fissel \u2731 leader at YWCA meeting • Co-ed racquet wielders defeat Beaver 3 to 2 • India, topic at International Relations Club • Women\u27s Debating Club meets at Maples • Notice to archers • Valley Forge overcomes yearling team 4 to 3 • Current problems in chapelhttps://digitalcommons.ursinus.edu/weekly/2117/thumbnail.jp