Digital Commons Network^™

The Effect Of Cultural Conditions On The Variations Of Sod, Cat And Gsh-Px Activities And Lpo Levels In The Filamentous Fungus Fusarium Equiseti, Hülya Ayar Kayali, Leman Tarhan

Turkish Journal of Chemistry

The changes in the activity of cellular detoxifying defence enzymes such as SOD, CAT and GSH-Px against superoxide anion radical and hydrogen peroxide, and in LPO levels in the filamentous fungus, Fusarium equiseti were measured under growth condition. Experiments were performed comparing changes in glycerol and saccharose (5-25 g/L) as carbon sources, and in glycine, peptone (5-35 g/L) as nitrogen sources in an AFM medium. While SOD activities correlate well with respect to the increase in the glycerol concentration (r = 0.437, p < 0.001), CAT activities showed negative correlation (r = -0.663, p < 0.001). The increase in SOD and CAT activities of F. equiseti correlated with increases in saccharose concentration. When glycerol and saccharose were used as carbon sources, the maximum SOD, CAT and GSH-Px enzymes activities and the minimum LPO level were determined in the medium containing 15 g/L of saccharose on the 12^{th} day at 66.61, 182.79, 1.045 IU/mg and 1.41 nmol MDA/ gr wet weight, respectively. The effects of peptone and glycine as nitrogen sources were also investigated: 53.4% and 48.03% decreases were observed in the SOD and CAT activities of F. equiseti in the presence of 10 g/L of peptone in the culture medium. The presence of 15 g/L of glycine caused 5.30% and 69.90% decreases in the SOD and CAT activities in comparison to the presence of 15 g/L of saccharose, respectively. On the other hand, LPO levels increased in proportion to the decrease in antioxidant enzyme activities in glycine and peptone supplemented media.

An Efficient Synthesis Of Substituted 4-Aryl-3-Cyano-2-Amino Thiophenes By A Stepwise Gewald Reaction, Ferhan Tümer, Duygu Eki̇nci̇, Kani̇ Zi̇lbeyaz, Ümi̇t Demi̇r

Turkish Journal of Chemistry

The title compounds were efficiently synthesised starting from aryl methyl ketones in 3 steps. Knoevenagel condensation of aryl methyl ketones with malononitrile gave the corresponding crotonitriles (5a-f). Methyl groups of the crotonitriles (5a-f) were then efficiently brominated by refluxing and lightening the reaction media to give bromocrotonitriles (6a-f). The bromocrotonitriles (6a-f) were finally cyclised by treatment with NaSH to give the title compounds.

Transgovernmental Networks Vs. Democracy: The Case Of The European Information Privacy Network, Francesca Bignami

GW Law Faculty Publications & Other Works

Under the European Data Protection Directive, responsibility for implementation and enforcement is generally left to the member states. The exception is for transfers to third countries: a complex network of national regulators, the European Commission, and a transnational comitology committee are responsible for blocking or permitting transfers to countries without adequate privacy guarantees. This article reviews the operation of the network and then poses two questions, one causal and the other normative. First, what explains the pattern of delegation (and non-delegation) of powers to the network? Second, does the network allow for adequate participation rights and judicial review and for …

From Convergence To Comity In Corporate Law: Lessons From The Inauspicious Case Of Sox, Lawrence A. Cunningham

GW Law Faculty Publications & Other Works

The Sarbanes-Oxley Act shook the corporate world beyond US borders more than Enron shook the corporate world within them. This Article goes beyond the prodigious commentary on the Act itself to understand the nature of its reception outside the US.

It first develops a hubs-and-spokes account of global corporate life in which corporate purpose, which varies around the world, forms the hub and radiates spokes constituting governance, finance, accounting, and auditing - all of which also differ around the world. Using this model, the Article suggests that non-US receptions to the Act exhibited unfounded fear that the exportation of US …

Juvenile And Adult Survival In The Sociable Weaver (Philetairus Socius), A Southern-Temperate Colonial Cooperative Breeder In Africa, Rita Covas, Charles R. Brown, Mark D. Anderson, Mary Bomberger Brown

School of Biological Sciences: Faculty Publications

We used capture–recapture analyses to describe juvenile and adult survival from 1993 to 2001 in a population of Sociable Weavers (Philetairus socius), a colonial, cooperatively breeding passerine of southern Africa. We examined temporal variation in survival and the role that the breeding season’s length and environmental factors play in determining survival patterns in the population. Annual survival probability (mean ± SE) was 0.66 ± 0.02. In contrast to most passerines, juveniles and adults had similar survival probabilities; survival rates did not vary significantly between years. We found no relationship among temperature, rainfall, and survival. Relatively high survival rates …

Occurrence And Characterization Of Mercury Resistance In The Hyperthermophilic Archaeon Sulfolobus Solfataricus By Use Of Gene Disruption, James Schelert, Vidula Dixit, Viet Hoang, Jessica Simbahan, Melissa Drozda, Paul H. Blum

School of Biological Sciences: Faculty Publications

Mercury resistance mediated by mercuric reductase (MerA) is widespread among bacteria and operates under the control of MerR. MerR represents a unique class of transcription factors that exert both positive and negative regulation on gene expression. Archaea and bacteria are prokaryotes, yet little is known about the biological role of mercury in archaea or whether a resistance mechanism occurs in these organisms. The archaeon Sulfolobus solfataricus was sensitive to mercuric chloride, and low-level adaptive resistance could be induced by metal preconditioning. Protein phylogenetic analysis of open reading frames SSO2689 and SSO2688 clarified their identity as orthologs of MerA and MerR. …

Culture-Independent Analysis Of Fecal Enterobacteria In Environmental Samples By Single-Cell Mrna Profiling, Han Chen, Gomathinayagam Ponniah, Nancy Salonen, Paul H. Blum

School of Biological Sciences: Faculty Publications

A culture-independent method called mRNA profiling has been developed for the analysis of fecal enterobacteria and their physiological status in environmental samples. This taxon-specific approach determines the single-cell content of selected gene transcripts whose abundance is either directly or inversely proportional to growth state. Fluorescence in situ hybridization using fluorochrome-labeled oligonucleotide probes was used to measure the cellular concentration of fis and dps mRNA. Relative levels of these transcripts provided a measure of cell growth state and the ability to enumerate fecal enterobacterial cell number. Orthologs were cloned by inverse PCR from several major enterobacterial genera, and probes specific for …

Biotin Deficiency Decreases Life Span And Fertility But Increases Stress Resistance In Drosophila Melanogaster, Anette Landenberger, Hadise Kabil, Lawrence G. Harshman, Janos Zempleni

Lawrence G. Harshman Publications

Biotin deficiency is associated with fetal malformations and activation of cell survival pathways in mammals. In this study we determined whether biotin status affects life span, stress resistance, and fertility in the fruit fly Drosophila melanogaster. Male and female flies of the Canton-S strain had free access to diets containing 6.0 (control), 4.8, 2.5, or 0 pmol biotin/100 mg. Biotin concentrations in diets correlated with activities of biotin-dependent propionyl-CoA carboxylase and biotin concentrations in fly homogenates, but not with biotinylation of histones (DNA-binding proteins). Propionyl-CoA carboxylase activities and biotin concentrations were lower in males than in females fed diets …

Civic Renewal And The Regulation Of Non-Profits, Miriam Galston

GW Law Faculty Publications & Other Works

Civic Renewal and the Regulation of Non-profits analyzes four understandings of civic renewal, elaborated in the wake of Robert Putnam's book Bowling Alone, in light of the federal regulatory scheme imposed upon voluntary associations that qualify as "exempt organizations" under the Internal Revenue Code. These perspectives emphasize the primacy of one or more of the following as indispensable elements of civic health: (1) cooperation and effective collective action, (2) self-governance (3) equality and representative institutions, and (4) the moral character of the community or the public spiritedness of citizens. The study analyzes how the different assumptions and purposes of these …

Methionine Sulfoxide Reductase Regulation Of Yeast Lifespan Reveals Reactive Oxygen Species-Dependent And -Independent Components Of Aging, Ahmet Koc, Audrey P. Gasch, Julian C. Rutherford, Hwa-Young Kim, Vadim N. Gladyshev

Department of Biochemistry: Faculty Publications

Aging is thought to be caused by the accumulation of damage, primarily from oxidative modifications of cellular components by reactive oxygen species (ROS). Here we used yeast methionine sulfoxide reductases MsrA and MsrB to address this hypothesis. In the presence of oxygen, these antioxidants could increase yeast lifespan and did so independent of the lifespan extension offered by caloric restriction. However, under ROS-deficient, strictly anaerobic conditions, yeast lifespan was shorter, not affected by MsrA or MsrB, and further reduced by caloric restriction. In addition, we identified changes in the global gene expression associated with aging in yeast, and they did …

The Donor Class: Campaign Finance, Democracy, And Participation, Spencer A. Overton

GW Law Faculty Publications & Other Works

This Article uses the U.S. Supreme Court's recent opinion in McConnell v. FEC to argue that the law should play a central role in reducing the impact of disparities in wealth on political participation. In upholding large parts of the Bipartisan Campaign Reform Act, the Court in McConnell acknowledged the adverse impact of concentrated wealth on widespread democratic participation and self-government. Even in the aftermath of the reforms upheld in McConnell, however, a small, wealthy and homogenous donor class continues to make relatively large contributions that fund the bulk of American politics. Less than one percent of the U.S. population …

Sexual Misconduct And Ecclesiastical Immunity, Ira C. Lupu, Robert W. Tuttle

GW Law Faculty Publications & Other Works

This paper critically analyzes the possibility and structure of First Amendment defenses to actions, both private and public, arising out of sexual misconduct by members of the clergy. Part I traces the expansion of relevant theories of tort and criminal liability, and the waning of immunities, constitutional and statutory, that once applied to such actions. Part II of the paper advances a normative theory of the constitutional distinctiveness of religion, and ties that theory to the possibility of ecclesiastical immunity. Most conceptions of such immunity represent assertions of the liberty of religious organizations, and are grounded in the Constitution's Free …

The Digital Person: Technology And Privacy In The Information Age, Daniel J. Solove

GW Law Faculty Publications & Other Works

This is the complete text of Daniel J. Solove's book, THE DIGITAL PERSON: TECHNOLOGY AND PRIVACY IN THE INFORMATION AGE (Full Text) (NYU Press 2004) explores the social, political, and legal implications of the collection and use of personal information in computer databases. In the Information Age, our lives are documented in digital dossiers maintained by hundreds (perhaps thousands) of businesses and government agencies. These dossiers are composed of bits of our personal information, which when assembled together begin to paint a portrait of our personalities. The dossiers are increasingly used to make decisions about our lives - whether we …

Reconstructing Electronic Surveillance Law, Daniel J. Solove

GW Law Faculty Publications & Other Works

After the September 11th attacks in 2001, Congress hastily passed the USA-Patriot Act which made several changes to electronic surveillance law. The Act has sparked a fierce debate. However, the pros and cons of the USA-Patriot Act are only one part of a much larger issue: How effective is the law that regulates electronic surveillance?

The USA-Patriot Act made a number of changes in electronic surveillance law, but the most fundamental problems with the law did not begin with the USA-Patriot Act. In this article, Professor Solove argues that electronic surveillance law suffers from significant problems that predate the USA-Patriot …

Teaching, Learning And Research: Linking High School Teachers To Information Literacy, Stephanie Davis-Kahl

Scholarly Publications

The Compton Teacher Information Literacy Institute (CTILI) is a teacher professional development program funded by the Compton (CA) Unified School District and delivered by the University of California at Irvine Libraries’ Department of Education and Outreach. Teacher professional development, university and library outreach activities and influences are discussed to give background on CTILI curriculum development. Institute goals and objectives are outlined, as is our curriculum remodeling effort after a mid-year assessment. Plans for future institutes are included.

Conceptual Art: A Base For Global Art Or The End Of Art?, Curtis Carter

Philosophy Faculty Research and Publications

No abstract provided.

Avantgarda In Medijske Umetnosti, Curtis Carter

Philosophy Faculty Research and Publications

No abstract provided.

Mentoring : A Key To First Year Survival, Shannon Hartman

Graduate Research Papers

My research will be directed to answer the following questions: What push/pull factors draw new teachers away from the teaching profession? What strategies can be employed to increase teacher retention? To what degree is a mentoring program effective in teacher retention? What characteristics establish the effectiveness of a mentoring program?

Addressing The Cultural Needs Of Latino Students In The Classroom : A Workshop For Reflective Educators, Tamara J. Hess

Graduate Research Papers

This is a professional development workshop intended for an elementary staff venue. The purpose is to facilitate teachers in developing culturally responsive classrooms in which Latino students can confidently develop their literacy skills. The workshop will serve to assist participants in identifying what their own cultural beliefs are, developing connections with people of the Latino culture, and exploring avenues to encourage growth and understanding between the two. It allows for the participants to be proactive in the creation of instruments that will enhance communication between home and school, and to use the information gained from it to build cooperative relationships …

Integrating Technology Into Literature Circles, Carrie A. Lutkenhaus

Graduate Research Papers

The purpose of this project is to develop a series of in-services that train middle school literature teachers in the integration of technology into literature circles. A staff development workshop was created to coincide with the Fort Dodge Community School District reading improvement goal. The audience for this staff development workshop will include eight fifth and sixth grade teachers from Fair Oaks Middle School. A review of the literature concerning literature circles and the integration of technology confirmed that the integration of technology into literature circles would have a positive effect on the literature classroom. Literature circles and the integration …

Adaptive Intelligent User Interfaces With Emotion Recognition, Fatma Nasoz

Electronic Theses and Dissertations

The focus of this dissertation is on creating Adaptive Intelligent User Interfaces to facilitate enhanced natural communication during the Human-Computer Interaction by recognizing users' affective states (i.e., emotions experienced by the users) and responding to those emotions by adapting to the current situation via an affective user model created for each user. Controlled experiments were designed and conducted in a laboratory environment and in a Virtual Reality environment to collect physiological data signals from participants experiencing specific emotions. Algorithms (k-Nearest Neighbor [KNN], Discriminant Function Analysis [DFA], Marquardt-Backpropagation [MBP], and Resilient Backpropagation [RBP]) were implemented to analyze the collected data signals …

Evaluation Of A Microwave Radiative Transfer Model For Calculating Sat, Simonetta Thompson

Electronic Theses and Dissertations

Remote sensing is the process of gathering and analyzing information about the earth's ocean, land and atmosphere using electromagnetic "wireless" techniques. Mathematical models, known as Radiative Transfer Models (RTM), are developed to calculate the observed radiance (brightness temperature) seen by the remote sensor. The RTM calculated brightness temperature is a function of fourteen environmental parameters, including atmospheric profiles of temperature, pressure and moisture, sea surface temperature, and cloud liquid water. Input parameters to the RTM model include data from NOAA Centers for Environmental Prediction (NCEP), Reynolds weekly Sea Surface Temperature and National Ocean Data Center (NODC) WOA98 Ocean Salinity and …

Thermal Management, Beam Control,And Packaging Designs For High Power, Te-Yuan Chung

Electronic Theses and Dissertations

Several novel techniques for controlling, managing and utilizing high power diode lasers are described. Low pressure water spray cooling for a high heat flux system is developed and proven to be an ideal cooling method for high power diode laser arrays. In order to enable better thermal and optical performance of diode laser arrays, a new and simple optical element, the beam control prism, is invented. It provides the ability to accomplish beam shaping and beam tilting at the same time. Several low thermal resistance diode packaging designs using beam control prisms are proposed, studied and produced. Two pump cavity …

Small Business Case Studies: Application Of Safety & Health Management Systems, Jennifer Schneider

Articles

No abstract provided.

Pigment Selection Using Kubelka-Munk Turbid Media Theory And Non-Negative Least Square Technique, Mahnaz Mohammadi, Mahdi Nezamabadi, Lawrence Taplin

Articles

This report describes a process of pigment selection for reconstructing the Gamblin Conservation Colors and various artist pigments dispersed in linseed oil. Single constant Kubelka–Munk (K-M) turbid media theory and a non-negative least square (NNLS) optimization technique were employed in this experiment. Eleven pigments were selected as representative of the 30-pigments Gamblin Conservation Colors. These were quinacridone red (PV 19), venetian red (PR 101), cadmium red medium (PR 108), cadmium yellow medium (PY 37), indian yellow (PY 83), chromium oxide green (PG 17), phthalocyanine green (PG 7), phthalocyanine blue (PB 15:2), cobalt blue (PB 28), titanium dioxide white (PW 6), …

Benchmark Report Of The Occupational Safety And Health Administration (Osha) Voluntary Protection Program (Vpp) And The Safety And Health Achievement Recognition Program (Sharp), Jennifer Schneider, Kitren Vanstrander, Joseph Brandine

Articles

Small businesses are faced with barriers when it comes to safety and health management. Unlike larger companies, they may not have the expertise or resources necessary to build effective programs. The goal of this study is to gather information about what motivates small businesses to implement safety & health management systems and identify any issues/barriers that are unique to small-sized companies. Members of the Voluntary Protection Program Participants Association (VPPPA) and the Safety and Health Achievement Recognition Program (SHARP) were selected for the survey because they have already been through the process of implementing safety & health management systems and …

Gumbo Yearbook, Class Of 2004, Louisiana State University And Agricultural And Mechanical College

Gumbo Yearbook

The Gumbo yearbook chronicles the entire academic year at LSU. In words and especially photos, the Gumbo shows the people, places, and events that make each year unique. In addition to formal portraits of schools and departments, the book contains hundreds of snapshots of students with their friends and dozens of pages showcasing organizations.

Evaluation Of Ten Psychometric Criteria For Circumplex Structure, G. Scott Acton, William Revelle

Articles

This study tested for sensitivity to circumplex structure in six existing and four new psychometric criteria that assess the circumplex properties of interstitiality, equal spacing, constant radius, and no preferred rotation. Simulations showed one criterion to be sensitive to equal versus unequal axes(Fisher Test) and four to be sensitive to interstitiality versus simple structure (Gap Test, Variance Test 2, Rotation Test, and Minkowski Test). Five criteria were ineffective (Squared Loadings Index, Gap* Test, Gap Difference Test, Cosine Difference Test, and Variance Test 1). Deviation scoring improved the effectiveness of most criteria and is thus recommended for assessing circumplex structure. This …

A Dynamic And Stochastic Analysis Of Fertilizer Use In Swidden Agriculture, Gregory Deangelo, Amitrajeet A. Batabyal

Articles

The number of times a crop can be harvested on a cleared parcel of forest land (CPFL) before this land must be fallowed is dependent on the decision to use or not to use fertilizers to enhance soil fertility. As such, we first construct a theoretical model of fertilizer use by a swidden cultivator when this cultivator can choose whether or not to enhance soil fertility by using fertilizers. Second, we analyze two different policies (fertilizer use and no fertilizer use) for overseeing the problem of soil fertility deterioration on the CPFL. Finally, we identify a particular likelihood function and …

Psychologists' Skepticism And Knowledge About Dissociative Identity Disorders In Adolescents, Nancy E. Madden

PCOM Psychology Dissertations

Professional skepticism about DID and lack of knowledge about DID has been documented in the adult literature on dissociative pathology (Hayes and Mitchell, 1994). Although 100% of adult DID cases are thought to have originated in childhood as sequelae of trauma, to date no studies about professional skepticism of and knowledge about DID have been done with psychologists who specialize in assessing children and adolescents. This study was designed to investigate the beliefs about DID and knowledge of DID that has been garnered by psychologists who specialize in assessing and treating adolescents. This study consisted of a convenience sample of …