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Interactive Effects Of Inducible Defense And Resource Availability On Phlorotannins In The North Atlantic Brown Alga Fucus Vesiculosus, P. Peckol, J. M. Krane, J. L. Yates

Biological Sciences: Faculty Publications

Research seeking to explain the ecological role of polyphenolics (phlorotannins) in plants and brown algae has largely focused on 2 alternative concepts, the carbon/nutrient (C/N) balance and the inducible defense models. We tested the hierarchy of effects of both models on phlorotannin production in the brown alga Fucus vesiculosus (Fucales) by simultaneously manipulating the N environment and simulating herbivory for 2 oceanic (high and low intertidal) and estuarine populations. We measured phlorotannin levels in algae under control, grazed, N-enriched, and grazed + N-enriched treatments with time (0 to 14 d) throughout the year to determine onset and duration of the …

Contrast-Enhanced Magnetic Resonance Imaging Confirmation Of An Anterior Protein Pathway In Normal Rabbit Eyes, Nancy H. Kolodny, Thomas F. Freddo, Barbara A. Lawrence, Cristina Suarez, Stephen P. Bartels

Chemistry: Faculty Publications

Purpose: Contrast-enhanced proton magnetic resonance imaging ( 1H MRI) has been used as a quantitative, noninvasive method to corroborate a pathway for the diffusion of plasma-derived protein into the aqueous humor in the normal rabbit eye. Methods. T1-weighted magnetic resonance images were produced over 1- to 3-hour periods after the intravenous injection of gadolinium diethylenetriamine-pentaacetic acid. Results. Analysis of the images yielded the time dependence of signal enhancements within the areas of interest. The ciliary body showed an immediate sharp increase, followed by a gradual decrease in signal enhancement with time. Although a gradual increase in signal enhancement was found …

Experiences Of Bidialectism In College-Educated African Americans: An Exploratory Study, Ina N. Owens

Masters Theses

This study was undertaken to explore experiences of bidialectism in college-educated African Americans. The major questions in this study attempted to answer the following: 1) How do college-educated African Americans perceive and negotiate differences between Black and Standard English? 2) Does negotiating two language systems impact their sense of cultural identity? If so, in what ways? and, 3) Is there a conflict involved in negotiating two language systems? If so, what is the nature of the conflict?

Eight interviews were conducted with graduate students who were both Black and Standard English speakers. Subjects ranged in age from 22 to 50. …

A Pcr Assay For The Detection Of Wuchereria Bancrofti In Blood, Min Zhong, James Mccarthy, Lou Ann Bierwert, Michelle Lizotte-Waniewski, Suzanne Chanteau, Thomas Nutman, Eric A. Ottesen, Steven A. Williams

Biological Sciences: Faculty Publications

To identify Wuchereria bancrofti DNA sequences that could be used as the basis for a simple and rapid parasite detection assay, a genomic library of W. bancrofti was constructed and screened for highly repeated DNA. The repeat found with the highest copy number was 195 basepairs (bps) long, 77% AT, and 300 copies per haploid genome. This sequence was designated the Ssp I repeat because it has a unique recognition site for that restriction endonuclease in all or most of the repeat copies. The Ssp I repeat DNA family is dispersed, genus-specific, and exists in all of the different geographic …

Allometry Of Litter Mass In Bats: Maternal Size, Wing Morphology, And Phylogeny, Virginia Hayssen, T. H. Kunz

Biological Sciences: Faculty Publications

We examine how litter mass in bats varies with respect to wing loading, an important aerodynamic aspect of flight. From geometric proportions, litter mass should scale to wing loading by an exponent of three. Conversely, analysis of aerodynamic consequences of carrying extra mass suggests that an exponent significantly less than three would be selectively advantageous. Our results show that Megachiroptera and Microchiroptera differ in the relationship between litter mass and wing loading. Litter mass in megachiropterans scales as expected by geometric proportions, whereas litter mass in microchiropterans, as a group, and for individual families, scales as expected if aerodynamic consequences …

Spouse Enabling Of Alcohol Abuse: Conception, Assessment, And Modification, Edwin J. Thomas, Marianne Yoshioka, Richard D. Ager

School for Social Work: Faculty Publications

This article presents a conception of spouse enabling of partner alcohol abuse, a review of its dysfunctions, and an approach to assessment and modification to reduce spouse enabling behavior. Based on experience with its use in unilateral family therapy with many spouses of treatment-refusing alcohol abusers, procedural guidelines, treatment methods, two case examples from a crossover experimental dyad, and clinical results for the two cases in the dyad are described. Also presented are practice issues, characteristics of spouse enabling as the), relate to disenabling intervention, and areas of possible application of the disenahling program.

A Group Of Galaxies At Redshift 2.38, Paul J. Francis, Bruce E. Woodgate, Stephen J. Warren, Palle Møller, Margaret Mazzolini, Andrew J. Bunker, James D. Lowenthal, Ted B. Williams, Takeo Minezaki, Yukiyasu Kobayashi, Yuzuru Yoshii

Astronomy: Faculty Publications

We report the discovery of a group of galaxies at redshift 2.38. We imaged ∼ 10% of a claimed supercluster of QSO absorption lines at z = 2.38. In this small field (2′ radius), we detect two Lyα-emitting galaxies. The discovery of two such galaxies in our tiny field supports Francis & Hewett's interpretation of the absorption-line supercluster as a high-redshift Great Wall. One of the Lyα galaxies lies 22″ from a background QSO and may be associated with a multicomponent Lyα absorption complex seen in the QSO spectrum. This galaxy has an extended (∼50 kpc), lumpy Lyα morphology surrounding …

A Field Trip Guide To Sites Of Geological Interest, Western New Providence Island, Bahamas, James L. Carew, H. Allen Curran, John E. Mylroie, Neil E. Sealey, Brian White

Geosciences: Faculty Publications

See other Smith authored Field Trip Guides of Gerace Research Center.

The Yale-Brown Obsessive Compulsive Scale: Interview Versus Self-Report, Gail Steketee, Randy Frost, Karen Bogart

Psychology: Faculty Publications

Several studies have demonstrated the reliability and validity of the Yale-Brown Obsessive Compulsive Scale (YBOCS) conducted by trained interviewers. The present study examined several aspects of a self-report YBOCS version relative to the usual interview format in two non-clinical samples (ns = 46 and 70) and in a clinical OCD sample (n = 36) and a clinical non-OCD group (n = 10). The self-rated instrument showed excellent internal consistency and test-retest reliability, performing somewhat better than the interview. There was good agreement between symptom checklist categories across the two versions, though clinical subjects reported more symptoms on the self-report form …