Digital Commons Network^™

Colliding Black Holes: How Far Can The Close Approximation Go?, Reinaldo J. Gleiser, Carlos O. Nicasio, Richard H. Price, Jorge Pullin

Faculty Publications

We study the head-on collision of two equal-mass momentarily stationary black holes, using black hole perturbation theory up to second order. Compared to first-order results, this significantly improves agreement with numerically computed wave forms and energy. Much more important, second-order results correctly indicate the range of validity of perturbation theory. This use of second-order corrections to provide “error bars” to the first-order results makes perturbation theory a viable tool for providing benchmarks for numerical relativity in more generic collisions and, in some range of collision parameters, for supplying wave form templates for gravitational wave detection. © 1996 The American Physical …

A Passive Vibration Isolation Stack For Ligo: Design, Modeling, And Testing, Joseph Giaime, Partha Saha, David Shoemaker, Lisa Sievers

Faculty Publications

Multiple-stage seismic vibration isolation stacks, which consist of alternating layers of stiff masses and compliant springs, can provide significant passive filtering of. ground vibration for experiments and equipment that are sensitive to mechanical noise. We describe the design, modeling and testing of a prototype of a stack suitable for use in the Laser Interferometer Gravitational-wave Observatory (LIGO). This is a four-stage elastomer (spring) and stainless steel (mass) stack, consisting of a table resting on three separate legs of three layers each. The viscoelastic properties of elastomer springs are exploited to damp the stack's normal modes while providing rapid roll-off of …

Some Effects Of 30 Years Of Weir-Management On Coastal Marsh Aquatic Vegetation And Implications To Waterfowl Management, John A. Nyman, Robert H. Chabreck

Faculty Publications

Aquatic vegetation was compared between weir-managed and unmanaged brackish marsh ponds at Marsh Island, Louisiana, parts of which have been weir-managed since 1958. Coverage by aquatic vegetation was greater in weir-managed ponds than in unmanaged ponds, but weir-management affected individual species differently. Eleocharis parvula was more common in unmanaged ponds than in managed ponds during the early 1960s but has not occurred in any ponds sampled since then. Ceratophyllum demersum and the dominant plants Myriophyllum spicatum and Ruppia maritima were more common in weir-managed ponds than in unmanaged ponds, although the magnitude of the difference varied greatly among sample dates. …

Genetic Variation Among Sweetpotatoes Propagated Through Nodal And Adventitious Sprouts, Arthur Q. Villordon, Don R. Labonte

Faculty Publications

Genetic uniformity was assessed among sweetpotato (Ipomoea batatas ) clones propagated through adventitious and nodal procedures. A single sprout each of 'Jewel.' 'Sumor,' and L87-95 was used as source of clonal plants that were simultaneously propagated through conventional adventitious procedures and a tissue culture-based nodal culture technique. A sample of 15 decamer primers generated 64 scorable amplified fragments in a PCR-based assay. 29 of which were putatively polymorphic across n = 60 samples ( 10 each of nodal and adventitiously derived plants/genotype). Within adventitiously derived materials, putative polymorphisms ranged from 4.7 <7r to>3U<£ depending on the genotypic class. In contrast, putative polymorphisms ranged from 0.0<£ to 3.1 **• among nodally derived samples. Marker loci differen-tiated genotypes as well as putative marker phenotype variants through a multidimensional scaling analysis of the genetic similarity matrix. An 'analysts of molecular variance' shows that genotypic effects accounted for 88.7°«• of the total molecular marker variability, w hue propagation effects ( within genotypic groups I accounted for 1U4T. Results confirm that clonal plants derived from preexisting meristematic regions arc more genetically uniform than plants propagated from adventitious origins.

In-Row Plant Spacing Affects Growth And Yield Of Pepperoncini Pepper, Carl E. Motsenbocker

Faculty Publications

Pepperoncini pepper (Capsicum annuum var. annuum L. 'Golden Greek') was grown at in-row spacings of 7.5, 15, 22.5, 30, and 45 cm to determine the effect of plant population on growth and fruit yield in a 2-year field study. In 1992, pepper plants grown at the 15-cm in-row spacing had the lowest plant, stem, and leaf dry weights, while plants at the lowest density (45-cm spacing) had the highest plant, leaf, and stem dry weights and the largest leaf area (LA). Of plants grown at the 7.5-cm spacing, the total yield and fruit count per hectare were higher than at …

Detachment Force And Fruit Characteristics Of Tabasco Pepper At Several Stages Of Development, Carl E. Motsenbocker

Faculty Publications

Field and greenhouse studies examined the fruit detachment force (FDF) and fruit and pedicel characteristics of two lines of tabasco pepper (Capsicum frutescens L.) at several stages of maturity. The detachment force of red-mature 'McIlhenny Select' fruit at the calyx-fruit detachment area was lower than that of less mature fruit stages. The force required to detach red-mature Hard Pick (HP) tabasco fruit was higher than that of red-mature 'McIlhenny Select' fruit in the field and greenhouse. The fruit detachment force of red field-grown HP fruit was higher, and in the greenhouse was lower, than that of green or breaker fruit. …

Fermented Cowpea Flour: Production And Characterization Of Selected Physico-Chemical Properties, Witoon Prinyawiwatkul, Larry R. Beuchat, Kay H. Mcwatters, R. Dixon Phillips

Faculty Publications

A simplified solid-substrate fermentation and milling process for preparing flour from nondecorticated cowpeas (cv. White Acre) was developed. Yield of fermented flours compared to starting substrate was about 73%. Total solids loss (ca. 21-23%) was due to soaking (6%), boiling (11%), fermentation (2-4%) and grinding (2%). Moisture loss during drying was approximately 5%. The pH of fermented flours ranged from 6.4 to 6.9. Fermented flours had less packed density but greater unpacked density than the control flour. About 41-44% of flour particles passed through a 0.297-mm sieve; 65-72% of these particles were in the exclusion range of 0.037-0.074 mm. An …

The Implications Of Turbidite-Driven Redox Changes In Sediments Of The Iberia Abyssal Plain, Timothy J. Shaw, P. A. Meyers

Faculty Publications

No abstract provided.

Organic Matter Accumulation, Sulfate Reduction, And Methanogenesis In Pliocene–Pleistocene Turbidites On The Iberia Abyssal Plain, P. A. Meyers, Timothy J. Shaw

Faculty Publications

No abstract provided.

Seismogeological Features Of The Crust In Romania, V Mocanu, C Dinu, F Radulescu, M Diaconescu, Camelia C. Diaconescu, A Pompilian

Faculty Publications

The Romanian area consists of old consolidated units of pre-Alpine age (the Moesian, Moldavian and Scythian platforms) and Alpine orogenic units (the Carpathian arc and North-Dobrudjan orogen). General seismogeological peculiarities of the pre-Alpine tectonic units are presented, as well as some structural characteristics of the Transylvanian Basin and the Pannonian Depression. Both shallow and deep seismic reflection/refraction data as well as log information and some potential field data were used for the investigation of the crustal structure. The varibility in the seismogeological pattern and crustal thickness shown by the different tectonic units is due to the differences in structure and …

The Effect Of Treaties And Other Formal International Acts On The Customary Law Of Human Rights, Arthur M. Weisburd

Faculty Publications

No abstract provided.

Syndromes And Politics In Criminal Trials And Evidence Law, Robert P. Mosteller

Faculty Publications

No abstract provided.

Twenty Questions On The Status Of Women Students In Your Law School, Jean C. Love

Faculty Publications

No abstract provided.

A Biologic Argument For Gay Essentialism-Determinism: Implications For Equal Protection And Substantive Due Process, E. Gary Spitko

Faculty Publications

Classifications, like race, that historically have been used to saddle certain people with disabilities on the basis of a characteristic that otherwise would be irrelevant to an individual's ability to contribute to society are inherently suspect as more likely to have been the product of irrational prejudice and, thus, are deserving of heightened equal protection scrutiny. Thus, in adjudicating whether a sexual orientation classification is deserving of heightened equal protection scrutiny, a court should ask only whether gay people have suffered a history of discrimination and whether their sexual orientation says anything about their ability to contribute to society.

The …

Beyond "Sellouts" And "Race Cards": Black Attorneys And The Straitjacket Of Legal Practice, Margaret M. Russell

Faculty Publications

No abstract provided.

Indecent Proposals: Reason, Restraint And Responsibility In The Regulation Of Indecency, Allen S. Hammond Iv

Faculty Publications

No abstract provided.

Lord Brougham's Bromide: Good Lawyers As Bad Citizens, Gerald F. Uelmen

Faculty Publications

No abstract provided.

Missouri V. Jenkins And The De Facto Abandonment Of Court-Enforced Desegregation, Bradley W. Joondeph

Faculty Publications

No abstract provided.

Democratic Community And Privilege: The Mandate For Inclusive Education, Stephanie M. Wildman

Faculty Publications

No abstract provided.

Test Wars: Mandatory Hiv Testing, Women, And Their Children, Michelle Oberman

Faculty Publications

No abstract provided.

Minor Rights And Wrongs, Michelle Oberman

Faculty Publications

No abstract provided.

Mothers Who Kill: Coming To Terms With Modern American Infanticide, Michelle Oberman

Faculty Publications

No abstract provided.

Statutory Rape Laws: Does It Make Sense To Enforce Them In An Increasingly Permissive Society?, Michelle Oberman

Faculty Publications

No abstract provided.

Improving Access To Food In Low-Income Communities: An Investigation Of Three Bay Area Neighborhoods, Edward Steinman, Kenneth Hecht

Faculty Publications

This report seeks to describe and analyze that dysfunction as it manifests itself in three low-income neighborhoods in San Francisco and Oakland. It does not examine the causes nor scope of poverty in those communities nor does it intend to estimate or describe the prevalence of hunger. These measures are amply documented in a 1995 report on hunger and the problem of food "insecurity" commissioned by the California Senate Office of Research and, in 1993 and 1994, reports on hunger from the Alameda County Community Food Bank and San Francisco Food Bank, respectively. Rather, this report treats poverty, hunger and …

Contractarians, Community, And The Tort Of Interference With Contract, William J. Woodward Jr.

Faculty Publications

No abstract provided.

Avoiding Serious Constitutional Doubts: The Supreme Court's Construction Of Statutes Raising Free Speech Concerns, Lisa A. Kloppenberg

Faculty Publications

No abstract provided.

The Public Interest In The Work Of The Courts: Opinions And Beyond, Lisa A. Kloppenberg

Faculty Publications

No abstract provided.

A Constitutional Bibliography, Thomas E. Baker

Faculty Publications

No abstract provided.

The Role Of Convertible Securities In Corporate Finance, George W. Dent

Faculty Publications

This Article examines theories supporting the use of convertible secyrutues and finds them insufficient even for public companies, to which they are supposed to apply. They fare worse yet for private firms which use convertibles even more frequently. Indeed, no one theory explains all uses of convertibles. Convertibles can reduce agency costs by reconciling differences in risk aversion and diminishing managers' exploitation of investors, but they can also promote managers' interests at the expense of shareholders. The mix of factors varies from case to case. Thus, the role of convertibles proves complex and diverse. After describing convertible securities (part II) …

Medical Advocates: A Call For A New Profession, Maxwell J. Mehlman

Faculty Publications

No abstract provided.