David M. Goldberg

Beowulf Analysis Symbolic INterface BASIN: Interactive Parallel Data Analysis for Everyone (2008)

Vesperini, Enrico, Goldberg, David M., McMillan, Stephen L. W., Dura, James, Jones, Douglas

The advent of affordable parallel computers such as Beowulf PC clusters and, more recently, of multi-core PCs has been highly beneficial for a large number of scientists and smaller institutions that...

Weak-lensing ellipticities in a strong-lensing regime (2008)

Massey, Richard, Goldberg, David M.

It is now routine to measure the weak gravitational lensing shear signal from the mean ellipticity of distant galaxies. However, conversion between ellipticity and shear assumes local linearity of...

Reconstruction of Cluster Masses using Particle Based Lensing I: Application to Weak Lensing (2008)

Deb, Sanghamitra, Goldberg, David M., Ramdass, Vede J.

We present Particle-Based Lensing (PBL), a new technique for gravitational lensing mass reconstructions of galaxy clusters. Traditionally, most methods have employed either a finite inversion or...

Weak lensing ellipticities in a strong lensing regime (2007)

Massey, Richard, Goldberg, David M.

It is now routine to measure the weak gravitational lensing shear signal from the mean ellipticity of distant galaxies. However, conversion between ellipticity and shear assumes local linearity of...

Gravitational shear, flexion, and strong lensing in Abell 1689 (2007)

Leonard, Adrienne, Goldberg, David M., Haaga, Jason L., Massey, Richard

We present a gravitational lensing analysis of the galaxy cluster Abell 1689, incorporating measurements of the weak shear, flexion, and strong lensing induced in background galaxies. This is the...

Gravitational Shear, Flexion and Strong Lensing in Abell 1689 (2007)

Leonard, Adrienne, Goldberg, David M., Haaga, Jason L., Massey, Richard

We present a gravitational lensing analysis of the galaxy cluster Abell 1689, incorporating measurements of the weak shear, flexion, and strong lensing induced in background galaxies. This is the...

Flexion and Skewness in Map Projections of the Earth (2006)

Goldberg, David M., Gott III, J. Richard

Tissot indicatrices have provided visual measures of local area and isotropy distortions. Here we show how large scale distortions of flexion (bending) and skewness (lopsidedness) can be measured....

Measuring Flexion (2006)

Goldberg, David M., Leonard, Adrienne

We describe practical approaches to measuring flexion in observed galaxies. In particular, we look at the issues involved in using the Shapelets and HOLICs techniques as means of extracting 2nd order...

Mapping the Cosmic Web with the Sloan Digital Sky Survey (2004)

Vogeley, Michael S., Hoyle, Fiona, Rojas, Randall R., Goldberg, David M.

Wide-angle, moderately deep redshift surveys such as that conducted as part of the Sloan Digital Sky Survey (SDSS) allow study of the relationship between the structural elements of the large-scale...

The Mass Function of Void Galaxies in the SDSS Data Release 2 (2004)

Goldberg, David M., Jones, Timothy D., Hoyle, Fiona, Rojas, Randall R., Vogeley, Michael S., Blanton, Michael R.

We estimate the Mass Function of void galaxies in the second public data release of the Sloan Digital Sky Survey from a sample of 1000 galaxies with local density contrasts of delta_v < -0.6. The...

Galaxy-Galaxy Flexion: Weak Lensing to Second Order (2004)

Goldberg, David M., Bacon, David J.

In this paper, we develop a new gravitational lensing inversion technique. While traditional approaches assume that the lensing field varies little across a galaxy image, we note that this variation...

Preprint typeset using L ATEX style emulateapj v. 04/03/99 THE MASS FUNCTION OF VOID GALAXIES IN THE SDSS DATA RELEASE 2 (2004)

David M. Goldberg, Timothy D. Jones, Fiona Hoyle, All R. Rojas, Michael S, Michael R. Blanton

We estimate the Mass Function of void galaxies in the second public data release of the Sloan Digital Sky Survey from a sample of 1000 galaxies with local density contrasts of δv < −0.6. The...

Simulating Voids (2003)

Goldberg, David M., Vogeley, Michael S.

We present a novel method for simulation of the interior of large cosmic voids, suitable for study of the formation and evolution of objects lying within such regions. Following Birkhoff's theorem,...

Using Perturbative Least Action to Reconstruct the Local Group (2000)

Goldberg, David M.

In this paper, we apply the Perturbative Least Action Method to model the Local Group of galaxies for various Cosmological models. We show that though the galaxy masses are theoretically good...

Using Perturbative Least Action to Reconstruct Redshift Space Distortions (2000)

Goldberg, David M.

In this paper, we present a redshift space reconstruction scheme which is analogous to and extends the Perturbative Least Action (PLA) method described by Goldberg & Spergel (2000). We first show...

Using Perturbative Least Action to Recover Cosmological Initial Conditions (1999)

Goldberg, David M., Spergel, David N.

We introduce a new method for generating initial conditions consistent with highly nonlinear observations of density and velocity fields. Using a variant of the Least Action method, called...

A Comparison of Simple Mass Estimators for Galaxy Clusters (1999)

Brainerd, Tereasa G., Wright, Candace Oaxaca, Goldberg, David M., Villumsen, Jens Verner

High-resolution N-body simulations are used to investigate systematic trends in the mass profiles and total masses of clusters as derived from 3 simple estimators: (1) the weak gravitational lensing...

The Microwave Background Bispectrum, Paper II: A Probe of the Low Redshift Universe (1998)

Goldberg, David M., Spergel, David N.

Gravitational fluctuations along the line-of-sight from the surface of last scatter to the observer distort the microwave background in several related ways: The fluctuations deflect the photon path...

The Microwave Background Bispectrum, Paper I: Basic Formalism (1998)

Spergel, David N., Goldberg, David M.

In this paper, we discuss the potential importance of measuring the CMB anisotropy bispectrum. We develop a formalism for computing the bispectrum and for measuring it from microwave background maps....

Astrometric Shifts in the OGLE-1 Microlensing Events (1997)

Goldberg, David M., Wozniak, Przemyslaw

We measure the astrometric shifts of the light centroids for the microlensing events in the OGLE-1 database. Of the 15 consistently detected events, 7 had significant shifts which we were able to...

Using Astrometry to Deblend Microlensing Events (1997)

Goldberg, David M.

We discuss the prospect of deblending microlensing events by observing astrometric shifts of the lensed stars. Since microlensing searches are generally performed in very crowded fields, it is...

Determination of the Baryon Density from Large Scale Galaxy Redshift Surveys (1997)

Goldberg, David M., Strauss, Michael A.

We estimate the degree to which the baryon density, $\Omega_{b}$, can be determined from the galaxy power spectrum measured from large scale galaxy redshift surveys, and in particular, the Sloan...

High-Resolution Simulations of Cluster Formation (1997)

Brainerd, Tereasa G., Goldberg, David M., Villumsen, Jens Verner

The formation history of rich clusters is investigated using a hybrid N-body simulation in which high spatial and mass resolution can be achieved self-consistently within a small region of a very...

Illusory sticking :--a vector averaging model /--by David M. Goldberg. (1981)

Goldberg, David M.

Thesis (Ph. D.)--State University of New York at Buffalo, 1981.

Clinical biochemistry reviews / edited by David M. Goldberg (1981)

Goldberg, David M

Continua bajo el título: Annual review of clinical biochemistry

Colorimetric determination of serum acid phosphatase activity using adenosine 3′-monophosphate as substrate

Ellis, Graham, Belfield, Alan, Goldberg, David M.

The hydrolysis of adenosine 3′-monophosphate by serum acid phosphatase has been coupled to the liberation of ammonia from the adenosine generated through the action of exogenous adenosine...

An assessment of serum acid and alkaline phosphatase determinations in prostatic cancer with a clinical validation of an acid phosphatase assay utilizing adenosine 3′ -monophosphate as substrate

Goldberg, David M., Ellis, Graham

Serum acid phosphatase (AcPase) was measured by a colorimetric method utilizing adenosine 3′ -monophosphate as substrate in 389 patients. In about half the cases blood was taken shortly after a...

Triacylglycerol metabolism in the phenobarbital-treated rat

Goldberg, David M., Roomi, M. Waheed, Yu, Alexander, Roncari, Daniel A. K.

1. Various aspects of triacylglycerol metabolism were compared in rats given phenobarbital at a dose of 100mg/kg body wt. per day by intraperitoneal injection; controls were injected with an equal...

Colorimetric determination of serum acid phosphatase activity using adenosine 3′-monophosphate as substrate

Ellis, Graham, Belfield, Alan, Goldberg, David M.

The hydrolysis of adenosine 3′-monophosphate by serum acid phosphatase has been coupled to the liberation of ammonia from the adenosine generated through the action of exogenous adenosine...

An assessment of serum acid and alkaline phosphatase determinations in prostatic cancer with a clinical validation of an acid phosphatase assay utilizing adenosine 3′ -monophosphate as substrate

Goldberg, David M., Ellis, Graham

Serum acid phosphatase (AcPase) was measured by a colorimetric method utilizing adenosine 3′ -monophosphate as substrate in 389 patients. In about half the cases blood was taken shortly after a...

Triacylglycerol metabolism in the phenobarbital-treated rat

Goldberg, David M., Roomi, M. Waheed, Yu, Alexander, Roncari, Daniel A. K.

1. Various aspects of triacylglycerol metabolism were compared in rats given phenobarbital at a dose of 100mg/kg body wt. per day by intraperitoneal injection; controls were injected with an equal...

Normal Ranges and Diagnostic Value of Serum 5′Nucleotidase and Alkaline Phosphatase Activities in Infancy

Belfield, Alan, Goldberg, David M.

Determinations of serum alkaline phosphatase (APase) and 5′nucleotidase (5Nase) activities have been carried out in 159 children investigated for possible disease of liver or bones, and in 147...

Experience of Routine Live-birth Screening for Galactosaemia in a British Hospital, with Emphasis on Heterozygote Detection

Ellis, Graham, Wilcock, A. Ross, Goldberg, David M.

Results are reported of a screening programme for galactosaemia covering a period of 2½ years and 6415 births. The gene frequency for galactosaemia estimated from the data of the screening programme...