Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Faculty Publications

Discipline
Institution
Keyword
Publication Year
File Type

Articles 2671 - 2700 of 2817

Full-Text Articles in Entire DC Network

The Cosmetic/Drug Dilemma: Fda Regulation Of Alpha-Hydroxy Acids, Laura A. Heymann Jan 1997

The Cosmetic/Drug Dilemma: Fda Regulation Of Alpha-Hydroxy Acids, Laura A. Heymann

Faculty Publications

No abstract provided.


Response Of Sedimentary Bacteria In A Louisiana Salt Marsh To Contamination By Diesel Fuel, Kevin R. Carman, Jay C. Means, Steven C. Pomarico Jun 1996

Response Of Sedimentary Bacteria In A Louisiana Salt Marsh To Contamination By Diesel Fuel, Kevin R. Carman, Jay C. Means, Steven C. Pomarico

Faculty Publications

In a 28 d microcosm study, we examined the effects of diesel-contaminated sediment on the sedimentary bacterial community of a Louisiana (USA) salt marsh that has been chronically exposed to petroleum hydrocarbons for decades. Diesel contaminants in microcosms as determined from polycyclic aromatic hydrocarbon (PAH) concentration ranged from 0.55 to 55 ppm (dry weight). Bacterial metabolism (incorporation of 14C-acetate and 3H-leucine) and bacterial abundance were not affected by diesel-contaminated sediment at any concentration. Bacterial degradation of 14C-phenanthrene, however, increased in direct proportion to the amount of diesel- contaminated sediment added. Ambient sediment also exhibited significant capacity to degrade PAH. The …


Abundant Protein-Containing Particles In The Sea, Richard A. Long, Farooq Azam Jun 1996

Abundant Protein-Containing Particles In The Sea, Richard A. Long, Farooq Azam

Faculty Publications

The interaction of bacteria with particulate organic matter has implications for organic matter cycling and bacterial ecology in the ocean. Until recently, the focus has been on 'classical' particles visible by unaided eye (marine snow) or light microscopy. Recent discoveries of several new types of abundant particles, from sub-micrometer to sub-marine snow, are changing our ideas of the physical and chemical nature of the particle field with which pelagic bacteria interact. Previous workers have discovered polysaccharide-containing (Alcian Blue stainable) transparent exopolymer particles (TEP) ranging from 3 to 100s of micrometers. Looking for additional components of the sub-marine snow particle field, …


Increasing Husbands' Involvement In Domestic Labor: Issues For Therapists, Kipling S. Rasmussen, Alan J. Hawkins, Kenneth P. Schwab Jun 1996

Increasing Husbands' Involvement In Domestic Labor: Issues For Therapists, Kipling S. Rasmussen, Alan J. Hawkins, Kenneth P. Schwab

Faculty Publications

As a result of the dramatic increase in women's participation in the work force, more relationship therapists are seeing couples who are dissatisfied with how domestic labor is divided in their homes. Although, this issue may seem therapeutically straightforward, there are many aspects which make its renegotiation surprisingly problematic and complex. This article is an effort to delineate some of these issues such as engaging men in therapy, exploring emotional issues connected with housework, and the mechanism of gatekeeping. Also included is a therapeutic framework for addressing client concerns about domestic responsibilities.


Urea Production And Turnover Following The Addition Of Amp, Cmp, Rna And A Protein Mixture To A Marine Sediment, Mette S. Therkildsen, Gary M. King, Bente Aa Lomstein May 1996

Urea Production And Turnover Following The Addition Of Amp, Cmp, Rna And A Protein Mixture To A Marine Sediment, Mette S. Therkildsen, Gary M. King, Bente Aa Lomstein

Faculty Publications

The potential of adenosine 5′-monophosphate (AMP), cytidine 5′-monophosphate (CMP), 16S ribosomal RNA, and a protein (bovine serum albumin) to serve as substrates for bacterial urea production was evaluated in a defaunated, anoxic marine sediment. AMP, CMP and RNA stimulated urea production and urea turnover, but CMP to a lesser degree than AMP and RNA. The increase in urea production and turnover rates took place immediately after AMP, CMP, and RNA were added to the sediment. The rapid response in urea production and turnover rates suggests that the necessary uptake mechanisms and enzymes to utilize the substrates were present constitutively. Addition …


Effects Of High-Molecular-Weight Dissolved Organic Matter On Nitrogen Dynamics In The Mississippi River Plume, Wayne S. Gardner, Ronald Benner, Rainer M.W. Amon, James B. Cotner Jr., Joann F. Cavaletto, Jeffrey R. Johnson Mar 1996

Effects Of High-Molecular-Weight Dissolved Organic Matter On Nitrogen Dynamics In The Mississippi River Plume, Wayne S. Gardner, Ronald Benner, Rainer M.W. Amon, James B. Cotner Jr., Joann F. Cavaletto, Jeffrey R. Johnson

Faculty Publications

The dynamics of N and its interactions with labile dissolved organic C (DOC), bacteria, and phytoplankton were studied to determine potential effects of dissolved organic matter (DOM) and light on N dynamics in surface waters of the Mississippi River (USA) plume in the Gulf of Mexico. Bacterial uptake of added labeled N compounds ( 15NH4+ or 15N-labeled dissolved free amino acids. DFAA) was stimulated more by high-molecular-weight (HMW, >l kDa) DOM than by low-molecular-weight (LMW, < l kDa) DOM. An index that inversely indicated the presence of labile DOC was defined as the fraction of assimilated Amino acid-15N that was Recovered as 15N -Ammonium (ANRA), following the additions of high-levels (4 µM) of 15N -DFAA. …


Short Stature And Risk Of Mortality And Cardiovascular Disease: Negative Findings From The Nhanes I Epidemiologic Follow-Up Study, Youlian Liao, Daniel L. Mcgee, Guichan Cao, Richard S. Cooper Mar 1996

Short Stature And Risk Of Mortality And Cardiovascular Disease: Negative Findings From The Nhanes I Epidemiologic Follow-Up Study, Youlian Liao, Daniel L. Mcgee, Guichan Cao, Richard S. Cooper

Faculty Publications

Objectives. This study sought to examine the relation between body height and incidence of myocardial infarction, coronary heart disease, overall mortality and mortality from cardiovascular disease. Background. An association betweeen short stature and increased risk of fatal and nonfatal cardiovascular disease has been observed in several studies, attracting considerable attention. Methods. We used data from the First National Health and Nutrition Examination Survey (NHANES 1) Epidemiologic Follow-Up Study, a prospective study of a large random sample of the U.S. population. to examine the association between height and risk of four end points. Results. Baseline data were collected from 1971 to …


Teaching The Elephant To Dance: Privatizing The Fda Review Process, Elizabeth Price Foley, Elizabeth C. Price Jan 1996

Teaching The Elephant To Dance: Privatizing The Fda Review Process, Elizabeth Price Foley, Elizabeth C. Price

Faculty Publications

Considers the implications of privatizing the Food and Drug Administration's (FDA) review of the safety and efficacy of medical devices and drugs. Concludes that the FDA's flaws - namely, a risk avoidance culture and autocratic style of regulation - can only be accomplished by breaking the agency's monopolization of this review function.


Atta Texana, Texas Leaf-Cutting Ant, On Typic Quartzipsamments: Ecological Considerations, David L. Kulhavy, W. G. Ross, R. R. Cahal Iii Jan 1996

Atta Texana, Texas Leaf-Cutting Ant, On Typic Quartzipsamments: Ecological Considerations, David L. Kulhavy, W. G. Ross, R. R. Cahal Iii

Faculty Publications

Pine plantations on Typic Quartzipsamments in East Texas are difficult to establish. Forest management options following clearcutting are limited. An 8-year regeneration study of the growth and survival of loblolly, Pinus taeda, L. shortleaf, P. echinata Mill., slash, P. elliotii Engelm and longleaf pines P. palustris Mill. was conducted to determine optimum tree species and treatments for reforestation, and to recommend practical alternative land uses and management strategies for Typic Quartzipsamments. Successful regeneration provides new opportunities for insects and pathogens. Impacts of the Nantucket pine tip moth, R}iyacionia frustrana (Comstock), the Deodar weevil, Pissodes nemorensis, Germar, Annosus root rot, Heterobasidion …


Development Of A Defined Minimal Medium For The Growth Of Edwardsiella Ictaluri, L. A. Collins, R. L. Thune Jan 1996

Development Of A Defined Minimal Medium For The Growth Of Edwardsiella Ictaluri, L. A. Collins, R. L. Thune

Faculty Publications

In this report, a complete defined medium and a minimally defined medium are described for Edwardsiella ictaluri. The complete defined medium consists of 46 individual components, including a basal salt solution, glucose, magnesium sulfate, iron sulfate, six trace metals, four nucleotides, 10 vitamins, and 19 amino acids. This medium supports growth in broth and on solid media. Optimal growth at 30°C was obtained at pH 7.0, and at an osmolality of 390 mosmol/kg of H2O, with a glucose concentration of 4 g/liter. The defined minimal medium reduces the 46 components of the complete medium to eight essential components, including the …


Metabolism Of Gemmules From The Freshwater Sponge Eunapius Fragilis During Diapause And Post-Diapause States, Stephen H. Loomis, Steven C. Hand, Paul E. Fell Jan 1996

Metabolism Of Gemmules From The Freshwater Sponge Eunapius Fragilis During Diapause And Post-Diapause States, Stephen H. Loomis, Steven C. Hand, Paul E. Fell

Faculty Publications

Post-diapause gemmules of the freshwater sponge Eunapius fragilis remained quiescent when maintained at 5°C. Germination occurred within 48 to 72 h following warming to 20°-23°C, culminating with the emergence of a new sponge from the collagenous capsule. Both heat dissipation and oxygen consumption climbed steadily during germination and eventually reached 600% of the starting values. By comparison, energy flow was much lower over the same period of time in diapausing gemmules, clearly demonstrating metabolic depression during diapause. The calorimetric:respirometric (CR) ratio increased significantly from -354 kJ/mol O2 to -541 kJ/mol O2 between hours 3.5 and 56.5 of germination, with an …


Nutritional Status In Rural Nigerians [17], R. Cooper, C. Rotimi, J. Kaufman, A. Luke Jan 1996

Nutritional Status In Rural Nigerians [17], R. Cooper, C. Rotimi, J. Kaufman, A. Luke

Faculty Publications

No abstract provided.


Fermented Cowpea Flour: Production And Characterization Of Selected Physico-Chemical Properties, Witoon Prinyawiwatkul, Larry R. Beuchat, Kay H. Mcwatters, R. Dixon Phillips Jan 1996

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 …


Improving Access To Food In Low-Income Communities: An Investigation Of Three Bay Area Neighborhoods, Edward Steinman, Kenneth Hecht Jan 1996

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 …


Putrescine: A Marker Of Stress In Red Spruce Trees, Rakesh Minocha, Walter C. Shortle, Gregory B. Lawrence, Mark B. David, Subhash C. Minocha Jan 1996

Putrescine: A Marker Of Stress In Red Spruce Trees, Rakesh Minocha, Walter C. Shortle, Gregory B. Lawrence, Mark B. David, Subhash C. Minocha

Faculty Publications

Aluminum (Al) has been suggested to be an important stress factor in forest decline due to its mobilization in soil following atmospheric deposition of acidic pollutants. A major goal of our research is to develop physiological and biochemical markers of stress in trees using cell cultures and whole plants. Needles of red spruce (Picea rubens) collected from several sites in the northeastern United States and red spruce cells grown in suspension cultures were examined for polyamine and inorganic-ion content. The cells in culture were exposed to various concentrations of Al for different lengths of time. Exposure to Al increased putrescine …


Leaf Gas Exchange And Growth Of Flood-Tolerant And Flood-Sensitive Tree Species Under Low Soil Redox Conditions, S. R. Pezeshki, J. H. Pardue, R. D. Delaune Jan 1996

Leaf Gas Exchange And Growth Of Flood-Tolerant And Flood-Sensitive Tree Species Under Low Soil Redox Conditions, S. R. Pezeshki, J. H. Pardue, R. D. Delaune

Faculty Publications

Seedlings of Taxodium distichum L., Quercus lyrata Walt. and Q. falcata var. pagodaefolia Ell. were grown for 22 days in a rhizotron system providing two soil redox potential regimes, +170 mV (low Eh) and +560 mV (high Eh). Leaf chlorophyll concentration and gas exchange, root alcohol dehydrogenase (ADH) activity, root and leaf ethylene production, and growth and biomass partitioning were measured. In response to the low Eh soil treatment, stomatal conductance was reduced in Q. falcata and Q. lyrata but not in T. distichum, whereas net photosynthesis was reduced significantly in all species; however, net photosynthesis in T. distichum began …


Psychology And Counseling Library Research Guide, Margaret Sylvia Jan 1996

Psychology And Counseling Library Research Guide, Margaret Sylvia

Faculty Publications

This document is a guide for library research in psychology or counseling. The first section discusses how to do research in the library, including choosing a topic, beginning with books, updating the information with journals, checking out books, interlibrary loan, visiting other libraries, and writing the paper. The second section provides sources of general information on psychology. The third section provides an annotated bibliography of additional research resources. The fourth section contains guide to the writing of psychology research papers and the fifth section contains miscellaneous resources such as those on professional training and careers, statistics, dictionaries, and biographical resources.


The Children We Abandon: Religious Exemptions To Child Welfare And Education Law As Denials Of Equal Protection To Children Of Religious Objectors, James G. Dwyer Jan 1996

The Children We Abandon: Religious Exemptions To Child Welfare And Education Law As Denials Of Equal Protection To Children Of Religious Objectors, James G. Dwyer

Faculty Publications

The story of children who die because their parents, in observance of their own religious principles, withhold conventional medical treatment from them is a familiar one. In this Article, James G. Dwyer shows that the phenomenon of parents denying secular benefits to their children for religious reasons goes far beyond these few highly publicized cases, extending into the realm of education as well as medical care. Moreover, Dr. Dwyer shows that the federal and state governments endorse this practice by statutorily exempting 'religious objector' parents from otherwise generally applicable compulsory child care and education laws. He argues that courts addressing …


God Bless The Child: Poor Children, Parens Patriae, And A State Obligation To Provide Assistance, Kay P. Kindred Jan 1996

God Bless The Child: Poor Children, Parens Patriae, And A State Obligation To Provide Assistance, Kay P. Kindred

Faculty Publications

No abstract provided.


Towards A Payments System Law For Developing And Transition Economies, Raj Bhala Sep 1995

Towards A Payments System Law For Developing And Transition Economies, Raj Bhala

Faculty Publications

This paper examines the legal foundations of large-value credit transfer systems and the importance of certainty, efficiency, and fairness in funds transfer law. A case study is presented to highlight key terminology and concepts. Thereafter, five particularly noteworthy legal rules are discussed in the context of the case study: (1) a rule defining the scope of the law; (2) a rule establishing when the rights and obligations of parties to a funds transfer are triggered; (3) a receiver finality rule; (4) a rule assigning liability for interloper fraud; and (5) a money-back guarantee rule, coupled with provisions on discharge. Finally, …


Ultrastructural Immunolocalization Of Histones (H2b, H3, H4), Transition Protein (Tp1) And Protamine In Rabbit Spermatids And Spermatozoa Nuclei. Relation To Condensation Of The Chromatin, J L. Courtens, Wilson Stephen Kistler, L Plöen Aug 1995

Ultrastructural Immunolocalization Of Histones (H2b, H3, H4), Transition Protein (Tp1) And Protamine In Rabbit Spermatids And Spermatozoa Nuclei. Relation To Condensation Of The Chromatin, J L. Courtens, Wilson Stephen Kistler, L Plöen

Faculty Publications

The histones H2B, H3 and H4, the transition protein TP1 and protamine were localised using ultrastructural immunocytochemistry in nuclei of rabbit spermatids and spermatozoa. Histones are present in round spermatid nuclei and are lost during the elongation of nuclei. TP1 and protamine appear simultaneously in all nuclei during this period. TP1 is located at the periphery of chromatin cords, while protamine seems to be located at random in the same cords. TP1 is lost in most elongated sprematids during step 13 of spermiogenesis, and the protamine stays in all sperm nuclei. TP1 remains persent in some old spermatids and ejaculated …


Children's Rights In Intercountry Adoption: Towards A New Goal, S. I. Strong Apr 1995

Children's Rights In Intercountry Adoption: Towards A New Goal, S. I. Strong

Faculty Publications

Each year, hundreds of thousands of children languish in foster or institutional care worldwide, while at the same time, thousands of adults, married and unmarried alike, are denied children because of “shortages.” How did this tragedy occur, and why does it continue to be repeated daily in countries around the world? The unfortunate truth is that many of the legal and societal norms now in place effectively prohibit needy children from finding suitable homes. While potential parents in Western countries cry out for babies of their own, millions of children live in physical and psychological poverty in underfunded orphanages around …


Community Metabolism And Nutrient Cycling In The Mississippi River Plume: Evidence For Intense Nitrification At Intermediate Salinities, Joseph D. Pakulski, Ronald Benner, Rainer Amon, Brian Eadie, Terry Whitledge Feb 1995

Community Metabolism And Nutrient Cycling In The Mississippi River Plume: Evidence For Intense Nitrification At Intermediate Salinities, Joseph D. Pakulski, Ronald Benner, Rainer Amon, Brian Eadie, Terry Whitledge

Faculty Publications

Community respiration, net nutrient fluxes and heterotrophic bacterial production were investigated in the Mississippi River (USA) plume during May 1992 using dark bottle incubations of unfiltered water. Highest rates of community O2 consumption and dissolved inorganic carbon regeneration were observed at intermediate (10 to 27%0) plume salinities. Plume surface 02 consumption rates were 2- to 4-fold greater than rates reported previously during the summer and winter. Heterotrophic bacterial production ([3H]-leucine incorporation) was also highest at intermediate salinities and 2- to 4-fold greater than rates reported from other seasons. Net regeneration of NH4+ …


The "Contract" And "Block Grants": The End Of Federal Food Programs?, Edward Steinman Feb 1995

The "Contract" And "Block Grants": The End Of Federal Food Programs?, Edward Steinman

Faculty Publications

No abstract provided.


Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos Jan 1995

Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos

Faculty Publications

Wheat forage was harvested at an early head stage of maturity and ensiled in 12 900-kg experimental silos at three percentages of DM (20.8% for direct-cut forage and 27.9 or 39.3% for wilted forage) either with or without application of a lactic acid bacterial inoculant. The objective was to test the efficacy of the inoculant to alter silage fermentation, preservation, and nutritive value of wheat forage ensiled at different moisture percentages because of wilting. Wilting enhanced DM preservation and decreased fermentation end products. Inoculation made the fermentation more homolactic but did not enhance DM preservation. Silage rations (80% DM as …


Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos Jan 1995

Effects Of Inoculation And Wilting On The Preservation And Utilization Of Wheat Forage, C. C. Williams, M. A. Froetschel, L. O. Ely, H. E. Amos

Faculty Publications

Wheat forage was harvested at an early head stage of maturity and ensiled in 12 900-kg experimental silos at three percentages of DM (20.8% for direct-cut forage and 27.9 or 39.3% for wilted forage) either with or without application of a lactic acid bacterial inoculant. The objective was to test the efficacy of the inoculant to alter silage fermentation, preservation, and nutritive value of wheat forage ensiled at different moisture percentages because of wilting. Wilting enhanced DM preservation and decreased fermentation end products. Inoculation made the fermentation more homolactic but did not enhance DM preservation. Silage rations (80% DM as …


The Effects Of Malnutrition On Child Mortality In Developing Countries, D.L. Pelletier, Edward A. Frongillo Jr., D.G. Schroeder, J.P. Habicht Jan 1995

The Effects Of Malnutrition On Child Mortality In Developing Countries, D.L. Pelletier, Edward A. Frongillo Jr., D.G. Schroeder, J.P. Habicht

Faculty Publications

No abstract provided.


Diurnal Water Relations And Gas Exchange Of Two Slash Pine (Pinus Elliottii) Families Exposed To Chronic Ozone Levels And Acidic Rain, J. D. Johnson, D. P. Byres, T. J. Dean Jan 1995

Diurnal Water Relations And Gas Exchange Of Two Slash Pine (Pinus Elliottii) Families Exposed To Chronic Ozone Levels And Acidic Rain, J. D. Johnson, D. P. Byres, T. J. Dean

Faculty Publications

Seedlings from two half‐sib families of Pinus elliottii var. elliottii Engelm. differing in sensitivity to ozone were grown in open‐top chambers for 22 months under simulated acidic rain (pH 3‐3) and four concentrations of ozone. The ozone concentrations were: charcoal‐filtered air (CF); non‐filtered ambient air (NF); twice the NF level (2X), thrice the NF level (3X). Ozone exposures were computer controlled to follow diurnal and seasonal fluctuations in ambient ozone concentrations. On two days, 24 April and 29 May, in the spring of 1990, trees were sampled repeatedly for xylem water potential, needle conductance and photosynthesis from sunrise to sunset …


Rethinking Preemption For Purposes Of Aliens And Public Benefits, Evangeline G. Abriel Jan 1995

Rethinking Preemption For Purposes Of Aliens And Public Benefits, Evangeline G. Abriel

Faculty Publications

No abstract provided.


The Right To Choose How To Die: A Constitutional Analysis Of State Laws Prohibiting Physician-Assisted Suicide, David Sloss Jan 1995

The Right To Choose How To Die: A Constitutional Analysis Of State Laws Prohibiting Physician-Assisted Suicide, David Sloss

Faculty Publications

No abstract provided.