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- D. W. Farmer, S. Lemurell
- Math. Comput.
- 2005

We describe numerical calculations which examine the Phillips-Sarnak conjecture concerning the disappearance of cusp forms on a noncom-pact finite volume Riemann surface S under deformation of the surface. Our calculations indicate that if the Teichmüller space of S is not trivial, then each cusp form has a set of deformations under which either the cusp… (More)

Let T N,χ p,k (x) be the characteristic polynomial of the Hecke operator T p acting on the space of cusp forms S k (N, χ). We describe the factorization of T N,χ p,k (x) mod ℓ as k varies, and we explicitly calculate those factorizations for N = 1 and small ℓ. These factorizations are used to deduce the irreducibility of certain T 1,1 q,k (x) from the… (More)

- E G Amparo, C B Higgins, D Farmer, G Gamsu, M McNamara
- AJR. American journal of roentgenology
- 1984

Ten cardiac and paracardiac masses were studied with magnetic resonance imaging (MRI) to evaluate the utility of this new method for determining the nature, location, and extent of such masses. The masses were intramural lesions (two cases), left atrial thrombus (one case), pericardial cysts (three cases), and mediastinal masses deforming and displacing the… (More)

- D W Farmer, E Moore, E Amparo, W R Webb, G Gamsu, C B Higgins
- AJR. American journal of roentgenology
- 1984

- M J Lipton, C B Higgins, D Farmer, D P Boyd
- Radiology
- 1984

CT scans were obtained with a Cine-CT Scanner that uses a rapidly moving focused electron beam. The 50-msec CT scans were obtained at two transverse levels simultaneously through the hearts of a series of four normal dogs and six patients, four with coronary artery disease and two with hypertrophic cardiomyopathy. Two scanning mode options were chosen.… (More)

We calculate the autocorrelation functions (or shifted moments) of the characteristic polynomials of matrices drawn uniformly with respect to Haar measure from the groups U (N), O(2N) and U Sp(2N). In each case the result can be expressed in three equivalent forms: as a determinant sum (and hence in terms of symmetric polynomials), as a combinatorial sum,… (More)

- D W Farmer, M J Lipton, W R Webb, H Ringertz, C B Higgins
- Journal of computer assisted tomography
- 1984

The CT results in defining anatomic and certain physiologic features in patients with congenital heart and great vessel anomalies were reviewed in 32 patients with a variety of congenital cardiac and aortic arch anomalies. Most of these cases (18 patients) were selected on the basis of angiocardiographic or echocardiographic studies performed prior to the… (More)

- Amy A Dan, Lisa M Martin, +5 authors Zobair M Younossi
- Journal of hepatology
- 2006

BACKGROUND/AIMS
Hepatitis C (HCV) infected patients have significant health-related quality of life (HRQL) impairment which worsens during anti-viral therapy. Our aim was to examine the association of HRQL with treatment-induced depression and anemia.
METHODS
Two hundred and seventy-one HCV patients who received pegylated interferon alfa 2b and ribavirin… (More)

- M J Lipton, D W Farmer, +4 authors C B Higgins
- Radiology
- 1985

A prototype ultrafast cine computed tomographic (CT) scanner, designed specifically for cardiac imaging, was used to evaluate a preliminary series of patients with prior myocardial infarction (n = 21) and a control group without coronary artery disease (n = 5). Multilevel 50-msec CT scan exposures were obtained during peripheral intravenous bolus injections… (More)

- C B Higgins, B F Byrd, D W Farmer, L Osaki, N H Silverman, M D Cheitlin
- Circulation
- 1984

Magnetic resonance imaging (MRI) was conducted with use of the spin-echo technique (0.35 Tesla) in 22 patients with a variety of congenital and cardiovascular anomalies and in 16 normal volunteers. Electrocardiographic (ECG) synchronization of the data acquisition produced transverse, parasagittal, and coronal tomograms that were used to define size and… (More)