937 research outputs found
The Kindergarten of Earthly Delights
I don’t usually tell love stories. But here’s one..
Lord of the Ralphs
It was 1979, the last week of May with only five days of eighth grade to go, when I saw Ralph at the opposite corner of the blacktop talking to a group of boys he normally never spoke to. Some of them, like Joey Rizzo and Pete Jones, were also in eighth grade, but others looked like they were in only third or fourth. One kid might have been a first-grader
The Genius and I
Jimmy Finger lived in the apartment directly above. It was 1973, and I was seven. Jimmy was two years older and attended what his mother called the “special school,” suggesting that Jimmy went there because he was a genius. And he looked like a genius to me: plastic-framed glasses, uncombed hair, filthy clothes. In the only photo that I have of him, he looks like he’s trapped inside of an invisible jail cell. He’s screaming, his arms are raised over his head as though he’s pounding at bars no one can see, and his glasses are crooked. He looks like an insane genius. Or maybe he just looks insane
The effects of immediate supervisory feedback using audiocuing on the interaction between students and preservice physical education teachers
The purpose of this study was to determine the effects of immediate supervisory feedback using audiocuing on the interactions between students and preservice physical education teachers (PPET).
[This is an excerpt from the abstract. For the complete abstract, please see the document.
The Note-Texter
I didn’t used to do this, but I take notes now. By notes, I mean that I text myself cryptic messages like, “This was how I learned to court.” Or: “Chase her with scissors.” Or: “My mother didn’t like him but felt sorry for him.” In between these cryptic notes are grocery lists: “Black cherry soda, milk, Purina Cat Chow, orange juice, jelly, ear medicine for dog.
Activated Carbon from North Dakota Lignite
Activated carbon was produced by reacting lignite char with steam in a fluidized-bed reactor which was designed and constructed for this study. Effects of three variables temperature, residence time and particle size, at four levels were studied statistically using a Latin square design. When the analysis of variance indicated that only two of the variables, temperature and residence time, were significant, a two-way classification design was used to investigate optimum activation conditions.
Activated carbon with adsorptive powers which were equal to or superior to Darco active carbon, as shown by the iodine test and the color adsorption test, were produced in this study. The best active carbons had an iodine adsorption of .725 grams per gram of carbon while Darco was only .55 grams of iodine per gram of carbon. Darco removed only 4 percent of the color from a stock solution of malachite green indicator while many of the products of this investigation removed 75 to 85 percent.
The analysis of variance of the results of the two designs used indicate that the effects of residence time between 6 minutes to 24 minutes is greater than that of temperature from 1450° F to 1750° F
A Time for SELAH: Spiritually Stronger Together through Group Spiritual Direction
McNally describes the value of spiritual direction in his work with students. SELAH is an abbreviation for a process used in group spiritual direction
Testing the models of cosmological structure formation
The introduction describes promising theories which extend the Standard Model
- inflationary and topological defect models. Although inflation solves some important
problems the model is poorly motivated in terms of currently understood particle physics.
Furthermore, conclusive tests of inflation are elusive. Topological defects, while less
of a panacea for the problems of the field, are well motivated by theories of Grand
Unification at T ~ 10¹⁶ GeV and make plausible candidates for the source of primordial
inhomogeneities. Crucially, cosmic strings, the best investigated class of topological
defect models, have testable consequences for the microwave background and the lensing
of galaxies. Chapters 2 - 4 adapt the second of these effects into a search method
for strings. Chapter 2 draws heavily on simulations of string networks to set limits
on the shape and distribution of horizon panning strings. Chapter 3 investigates the
appearance of galaxies lensed by such strings. In chapter 4 this knowledge is then built
into an algorithm which searches for strings on Schmidt plates. Ultimately only a weak
density limit of ≲ 90 long strings per horizon volume can be set with this survey medium .
Finally, an extension of the work to deeper surveys is considered - running the search
algorithm on the large area Sloan survey should test the cosmic string model conclusively.The introduction in chapter 1 also exposes the most significant grey areas in the
Standard Hot Big Bang model: (a) determining the form and density of the energy
content of the Universe, and reconciling this to (b) the age of the Universe, and (c) the
observed clustering of galaxies. This thesis makes two contributions to this area. Chapter
5 discusses a variant of the Cold Dark Matter model in which a dark matter component
decays radiatively at early times. The model has the virtue that it can accommodate the
low apparent value Ωh inferred from observed large-scale galaxy clustering and the
high measured values of Ω and h. Limits on the small-scale clustering predicted by such
models constrains the mass and lifetime of the decaying component to 0.5 < m < 30
keV, 0.2 < ᵀ< 500 years. Chapter 6 contributes to the observational tests of large-scale
galaxy clustering by constraining the clustering signal of a sample of high-redshift radio
galaxies. The clustering measured here is consistent with that measured with other radio
surveys. The high redshift data are important as they give clues to the evolution of the density field with time. Forms of bias evolution which arise from continuity constraints
on the equations of motion for galaxies and the mass (i.e. b[z] = b[0] - a + a [ l + z])
are shown to be entirely consistent with the data, as are unbiased b[z] = b[0] models.
Schemes in which bias in galaxy numbers arises from the differential formation and
motion of dark matter haloes (predicting b[z] = b[0] - a + a[ l + z]²) are shown to be only
marginally consistent with the clustering measured at the highest redsliifts, (z ≃ 1.5).
Improvements to the dataset which would allow more conclusive limits are discussed
Journaling about Head, Heart, and Hands: A Vital Tool for Cultivating Formation
The importance of regular journaling to enhance and support ongoing growth and development ultimating assisting in flourishing
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