31 research outputs found
On limits of -norms of an integral operator
Get PDFsummary:A recurrence relation for the computation of the -norms of an Hermitian Fredholm integral operator is derived and an expression giving approximately the number of eigenvalues which in absolute value are equal to the spectral radius is determined. Using the -norms for the approximation of the spectral radius of this operator an a priori and an a posteriori bound for the error are obtained. Some properties of the a posteriori bound are discussed
Convergence of -norms of a matrix
Get PDFsummary:a recurrence relation for computing the -norms of an Hermitian matrix is derived and an expression giving approximately the number of eigenvalues which in absolute value are equal to the spectral radius is determined. Using the -norms for the approximation of the spectral radius of an Hermitian matrix an a priori and a posteriori bounds for the error are obtained. Some properties of the a posteriori bound are discussed
Fayette County Korean and Vietnam Veterans plaque
No full textPhotograph of a Veterans Memorial in Fayette County. It reads: "Korean Veterans: Lowell W. Greenwood, William L. Guyton, Harvey E. Holub, Edward P. Machala, Charlie J. Mares, Edgar E. Michalek, William D. Ware, Oscar Williams. Vietnam Veterans: Jackson Dillon Barnes, Edward Hugo Beyer, Edgar J. Brossman, Harold Paul Degner, Floyd Wayne Kaase, Arnold John Kulhanek, Robert James Stavinoha, Willie Ray Thompson, Robert E. Urbanovsky, Gerald J. Walla.
On limits of -norms of linear operators
Get PDFAbstractIt is proved that if A is a bounded Hermitian operator on a probability Hilbert algebra which preserves positivity and is continuous from L2 to Lp for some p > 2 then ∥ A ∥ is an eigenvalue of A. A sufficient condition is given for its multiplicity to be one. Applications are given to the proof of existence and nondegeneracy of physical ground states in quantum field theory for physical systems involving Fermions or Bosons
[Veterans' Plaque]
No full textPhotograph of a plaque with the names of Korean War and Vietnam War veterans. The plaque reads: "Korean War Veterans. Lowell W. Greenwood, William L. Guyton, Harvey E. Holub, Edward P. Machala, Charlie J. Mares, Edgar E. Michalek, William D. Ware, Oscar Williams. Vietnam War Veterans. Jackson Dillon Barnes, Edward Hugo Breyer, Edgar J. Brossman, Harold Paul Degner, Floyd Wayne Kaase, Arnold John Kulhanek, Robert James Stavinoha, Willie Ray Thompson, Robert E. Urbanovsky, Gerald J. Walla"
Congruence of Parent-Report, Self-Report, and Performance-Based Neuropsychological Functioning in Pediatric Acute Lymphoblastic Leukemia Survivors
Get PDFAcute Lymphoblastic Leukemia (ALL) is thought to have long-term cognitive effects, and clinicians often rely on parent report to screen for cognitive impairment during survivorship, despite limited congruence with neuropsychological performance and susceptibility to parental factors such as stress. This study was the first to investigate the moderating effect of parental stress on the congruence between reported child functioning and neuropsychological performance in pediatric ALL.
Based on prior literature, performance-based, parent-report, and self-report measures were expected to show significantly worse child functioning compared to norms, with parents expected to report elevated stress compared to norms. Parental stress was expected to moderate the congruence between parent report and neuropsychological performance or self-report, with more stressed parents overestimating child impairment.
A relatively large (N=107) sample of pediatric ALL survivors treated on chemotherapy-only protocols completed neuropsychological screening and standardized questionnaires on cognitive, behavioral, and emotional functioning at an annual follow-up visit (minimum six months post-treatment completion). Parents completed standardized questionnaires on child cognitive, behavioral, and emotional functioning; and parental stress and mood.
Independent t-tests showed average overall cognitive functioning compared with normative data, but higher-than-expected frequencies of impairment (≤ 2nd percentile) in attention and executive functioning. ANOVA/ANCOVA analyses showed greater methotrexate exposure and younger age of diagnosis are associated with worse attention and processing speed performances. Parental stress and depression were lower than expected, likely indicating good parental adjustment.
Correlation analyses revealed low to moderate (r = .21 - .41) congruence between parent report and neuropsychological performance; parent- and self-reported behavioral/emotional functioning were weakly associated. Moderation analyses indicated ratings of parents reporting mild stress were more congruent with neuropsychological performance than ratings of parents reporting no stress (ΔR2 = .05, p < .05), suggesting parents reporting at least some stress are more attuned to subtle aspects of child functioning.
Contemporary treatment protocols show generally intact child cognitive functioning, though some are vulnerable to late effects. Parental psychological factors may steer clinicians toward performance-based methods of child assessment. Longitudinal studies with healthy and matched controls are necessary to fully understand the variable course and expression of late cognitive effects in pediatric leukemia survivors
Determination of copper by electrothermal AAS after electrodeposition on a graphite disk electrode
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ChemInform Abstract: PHOTOCHEMISTRY OF IMINIUM SALTS IN THE PRESENCE OF N‐ELECTRON DONATING ALCOHOLS AND ETHERS
No full text[St. John's Seminary Juniors 1934 baseball team]
No full textMonochromatic snapshot photograph of 12 older boys wearing St. John's Seminary baseball team uniforms. The print is horizontally oriented, and a black Greek key decorative border contains the text "FOX CO" at the front top right and bottom left corners. The image shows the group posing outdoors. Five boys are standing in the back row. The boys on the left and right ends of the row are wearing a catcher's mitts. Three boys are partially kneeling or crouching in the middle row, and four boys are partially kneeling or crouching in the front row. The second boy from the left end is wearing an umpire chest protector and holding a baseball in a catcher's mitt. There is an arrangement of 10 baseball bats and several baseballs centered on the ground in front of the group. There is a sideways blue ink stamp for Fox Company with the running fox logo and text on the verso middle: "Guaranteed for Life, This is a Genuine Border Fox Tone Picture Made By Fox Company, San Antonio, Texas, Trade Mark Protected." A darker sideways blue ink stamp "4 82" is to the right of the logo. Black ink inscriptions on the verso, handwritten on top of the stamps, list the players' names and some positions: "Juniors 1934, Back: [illegible] Mika 3rd; Al. Ranley 2nd; Wiewell; [illegible] Kasprzyk l.f.; Benj. Ashley c.f.; Middle: Bernard Pollock sub.; Ray Starr 1st; Benedict Pruski ss; J. S. Quitla sub.; Stavinoha (c.); Joe Orsak (p.); Pat Keating R. F.
