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Lawrence Today, Volume 82, Number 4, Summer 2002, Lawrence University

Alumni Magazines

No abstract provided.

A Wd40-Repeat Containing Protein, Similar To A Fungal Co-Repressor, Is Required For Transcriptional Gene Silencing In Chlamydomonas, Chaomei Zhang, Dancia Wu-Scharf, Byeong-Ryool Jeong, Heriberto D. Cerutti

Center for Plant Science Innovation: Faculty Publications

In higher plants, mammals, and filamentous fungi, transcriptional gene silencing is frequently associated with DNA methylation. However, recent evidence suggests that certain transgenes can be inactivated by a methylation independent mechanism. In the unicellular green alga Chlamydomonas reinhardtii, single-copy transgenes are transcriptionally silenced without discernible cytosine methylation of the introduced DNA. We have isolated a Chlamydomonas gene, Mut11, which is required for the transcriptional repression of single-copy transgenes. Mut11 appears to have a global role in gene regulation since it also affects transposon mobilization, cellular growth, and sensitivity to DNA damaging agents. In transient expression assays, a fusion …

Nova Southeastern University Libraries Annual Report 2001-2002, Nova Southeastern University

Brochures, Pamphlets, and Reports of the NSU Alvin Sherman Library

No abstract provided.

Santa Clara Magazine, Volume 44 Number 1, Summer 2002, Santa Clara University

Santa Clara Magazine

10 - PRACTICE WHAT WE PREACH By Paul Locatelli, S.J. SCU's president encourages us to look squarely at the scandal in our midst.

12 - TIME TO GIVE By Elizabeth Kelley Gillogly '93. Alumni share their experiences of volunteering in the Peace Corps and Jesuit Volunteer Corps.

18 - IS GREED GOOD? By Susan Vogel. A group of SCU professors discusses this thorny issue.

22 - FROM GANG LIFE TO PREP SCHOOL By Cecilia Kang. Enrique Flores '02 escaped gang life in East San Jose. Now he helps others do the same.

The Evolution Of A Commercial Landscape: A Case Study Of The Motels Along U.S. Highway 31-W, Jill Brown

Masters Theses & Specialist Projects

The cultural landscape is shaped by human imprints on the natural environment. Many decisions are made that have rippling effects over time. One type of development that changes the landscape is transportation innovation. As improved transportation links are introduced, people change their movement to include the quicker, more efficient route. As movement changes due to increased accessibility, roads that were once traveled by all now have fewer travelers. The rippling effects of the decision to add new infrastructure start at the opening of the innovation. New businesses will spring up at crossroads and common stopping areas. The long established businesses …

Abstracts Of Papers, 80th Annual Meeting Of The Virginia Academy Of Science, May 22-24, 2002, Hampton University, Hampton, Virginia

Virginia Journal of Science

Abstracts of papers that were presented at the 80th annual meeting of the Virginia Academy of Science.

The Neisseria Lipooligosaccharide-Specific Alpha-2,3-Sialyltransferase Is A Surface-Exposed Outer Membrane Protein, Dawn M. Shell, Lisa Chiles, Ralph C. Judd, Samar Seal, Richard F. Rest

Biological Sciences Faculty Publications

Neisseria gonorrhoeae and Neisseria meningitidis express an similar to43-kDa alpha-2,3-sialyltransferase (Lst) that sialylates the surface lipooligosaccharide (LOS) by using exogenous (in all N. gonorrhoeae strains and some N. meningitidis serogroups) or endogenous (in other N. meningitidis serogroups) sources of 5'-cytidinemonophospho-N-acetylneuraminic acid (CMP-NANA). Sialylation of LOS can protect N. gonorrhoeae and N. meningitidis from complement-mediated serum killing and from phagocytic killing by neutrophils. The precise subcellular location of Lst has not been determined. We confirm and extend previous studies by demonstrating that Lst is located in the outer membrane and is surface exposed in both N. gonorrhoeae and N. meningitidis. Western …

Genetic Evidence That Interhelical Packing Interactions In The Gp41 Core Are Critical For Transition Of The Human Immunodeficiency Virus Type 1 Envelope Glycoprotein To The Fusion-Active State, Kathryn E. Follis, Scott J. Larson, Min Lu, Jack H. Nunberg

Biological Sciences Faculty Publications

The envelope glycoprotein complex (gp120-gp41) of human immunodeficiency virus type 1 (HIV-1) promotes the fusion of viral and cellular membranes through formation of the fusion-active six-helix bundle in the gp41 ectodomain. This gp41 core structure consists of three C-terminal helices packed in an antiparallel manner into hydrophobic grooves on the surface of the N-terminal trimeric coiled coil. Alanine mutations that destabilize the N- and C-terminal interhelical packing interactions also reduce viral infectivity. Here we show that viruses bearing these mutations exhibit a marked potentiation of inhibition by peptides that make up the gp41 core. By contrast, these viruses are unchanged …

Suffolk University Magazine, Summer 2002, Suffolk University

Suffolk University Magazine

No abstract provided.

Monitoring The Prey-Field Of Marine Predators: Combining Digital Imaging With Datalogging Tags, Sascha Hooker, Ian L. Boyd, Mark Jessop, Oliver Cox, John Blackwell, Peter Boveng, John Bengston

United States Department of Commerce: Staff Publications

There is increasing interest in the diving behavior of marine mammals. However, identifying foraging among recorded dives often requires several assumptions. The simultaneous acquisition of images of the prey encountered, together with records of diving behavior will allow researchers to more fully investigate the nature of subsurface behavior. We tested a novel digital camera linked to a time-depth recorder on Antarctic fur seals (Arctocephalus gazella). During the austral summer 2000-2001, this system was deployed on six lactating female fur seals at Bird Island, South Georgia, each for a single foraging trip. The camera was triggered at depths greater …

Public Attitudes And Knowledge Of The Black-Tailed Prairie Dog: A Common And Controversial Species, Donna Lybecker, Berton Lee Lamb, Phadrea Ponds

United States Geological Survey: Staff Publications

Black-tailed prairie dogs (Cynomys ludovicianus; hereafter, prairie dogs) are native to the short-grass prairie region of North America from Mexico to Canada (figure 1).According to government documents (64 Federal Register 57 at 14426–14427), before the 19th century expansion of the United States, prairie dogs inhabited millions of acres of the Great Plains and lived in huge colonies west of the Missouri River. Settlement of the Great Plains and the transformation of vast areas from native grassland to tilled farmland forever changed the prairie ecosystem and prairie dog habitat.
Over the course of the last century, the habitat range …

An Exploratory Study On The Relationships Among Electorate's Voting Behavior, Party Identification, Personal Values, And Demographic Characteristics, Kuan-Shun Chiu

Doctoral Dissertations

This study was proposed to examine if there existed significant differences in voters' party identification and voting behavior due to gender, race, age, income, education and personal values.

The sample was chosen from eligible voters in Florida. Of the 1500 questionnaires managed, 161 were identified as useable. The sample was representative of the results of 2000 presidential election in Florida with respect to voters' gender, race, income, and voting choice by party identification. Statistical techniques used were ANOVAs, Chi-square statistics, factor analysis, and logistic regression.

This study demonstrates how personal values may be associated with demographic characteristics to create a …

Circulation, Vol. 9, No. 1, Center For Coastal Physical Oceanography, Old Dominion University, Richard Moody

CCPO Circulation

Summer 2002 issue of CCPO Circulation featuring article "Workshop Promotes Safe Navigation, Training for Marine Pilots" by Richard Moody

Focus Spring/Summer 2002

FOCUS: Economic Issues for Nebraskans

Contents:
Research on Nebraska Agricultural Productivity by Richard K. Perrin
Nebraska's Farm Real Estate Market: A Quarter-Century Perspective by Bruce B. Johnson and Glenn A. Helmers
The Dynamics of Water Quality Policy by Raymond J. Supalla and Saeed Ahmad
Beef Industry Structure, Marketing and Policy Issues by Dillon M. Feuz
UNLÕs Agribusiness Program Works for Students by Ronald J. Hanson and Jessica L. McKillip
Focus on teaching
Focus on research
Focus on outreach
Focus on people

Nebline, July 2002

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2002 Lancaster County Fair
Blue Flowers for the Garden
Lawn Care Tips Save Water During Drought
Fall Webworm
2002 July/August Garden Calendar
“Itchy Chiggers”
Mosquito Prevention and Control
What’s the Scoop on Insect Repellents?
Changes in the Nebraska Pesticide Act May Affect Termiticide Applications
Preparing Bins, Equipment for Harvest
Soybeans American Style: Using Innovation & Experience to Increase Profitability
Pesticide Container Recycling
Plant Turnips for Fall Grazing
Safety and Risk Management in Agricultural Tourism
Caring for Animals When Gone
State’s Rural Population is Growing
July/August UNL Programs and Events of Interest
Packing Your Lunch Can Save You More Than Money …

Fisheries Occasional Publication No. 2 - Scientific Workshop On The Margaret River Marron, Brett Molony

Fisheries Occasional Publications

Purpose of the Workshop

To gather together and review the scientific evidence around genetic and sustainability issues necessary for the management of Margaret River Marron (MRM)

The outcomes of the day will be to provide scientific advice, options and priorities to the relevant Programs within the Department of Fisheries to promote the sustainability of marron within MR.

* Introduction to, and comparison of, genetic techniques available to researchers. Presenter - Phil Vercoe

* What do we know about the genetic diversity of marron and other Cherax? Presenter - Chris Austin

* Morphology and Hybrids Presenter - Craig Lawrence

* The …

Uni Schedule Of Classes, Summer 2002, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

2001-2002 - Graduate Council Annual Report, College Of Graduate And Continuing Studies, East Tennessee State University

Graduate Council Agendas and Minutes

No abstract provided.

Pre-Paid Phone Cards, "Cosas," And Photos Of The Saints: Transnational Santeria Practices In A Southwest City, Nancy J. Burke

Research Papers

"Now everything is crazy. Everybody wants to send money to Cuba, to travel to Cuba, to call Cuba. We never did these things. When we came we started working and saving for our life and our kids here. We didn't have contact with our family for almost thirty years. Jose just got to see his family again last year, for the first time since he left in 1963. We didn't have the option to call and send money like they do now. It was much more difficult." These are the words of Emestina, a 72-year-old Cuban woman who immigrated to …

Endangered Species Bulletin, July/August 2002 - Vol. Xxvii No. 3

Endangered Species Bulletin

In this issue:
4 Partners in Plant Conservation
5 The Center for Plant Conservation
8 A Safety Net for Hawaii’s Rarest Plants
12 An Alpine Plant Comes Back
14 Reintroducing Pitcher’s Thistle
16 Bringing Back a Fugitive
18 Battlefield Harbors a Tennessee Plant
20 The Search for Coryphantha ramillosa
22 Cultivating Partnerships for the Yellow Larkspur
24 Collaborative Conservation of the Beach Clustervine
26 Private Property, Public Interest
28 We’re Glad to Have Glades
30 Listing Actions
32 Box Score

Population Dynamics And Treatment Strategies Of Phytophthora Infestans (Late Blight) In The Mid-Hills Of Nepal, Heico Apel, M. S. Paudyal, O. Richter

International Congress on Environmental Modelling and Software

The fungus Phytophthora infestans is a major ubiquitous pest in solanaceous crops and causes great damages in the agricultural systems in Nepal. This is especially true in the cash crop orientated areas of the Mid-Hills and the Terai region, where potato and tomato cropping is a prominent income source of the rural population. This fact in combination with cheap and readily available pesticides is responsible for the frequent and perceived over-use of chemical plant protection agents. Based on this background a series of agronomic field trials in the Jhikhu-Khola watershed aiming at the optimisation of P. infestans treatment strategy was …

Modular Ecosystem Modeling, Alexey Voinov, Carl Fitz, Thomas Maxwell, Roelof Boumans, Robert Costanza

International Congress on Environmental Modelling and Software

The modular ecosystem modeling approach was used to create a flexible landscape model structure that is easy to modify and extend for particular case studies and applications. The Library of Hydro Ecological Modules (LHEM; http://iee.umces.edu/LHEM) includes modules that describe hydrologic processes, nutrient cycling, vegetation growth, decomposition, etc., both locally and spatially. LHEM is implemented within the framework of the Spatial Modeling Environment (SME; http://iee.umces.edu/SME3) that integrates modules and places local simulation models into a spatial context. The LHEM was used to build the Patuxent Landscape Model (PLM) as well as models of several subwatersheds of the Patuxent. Local ecosystem dynamics …

Integrative Environmental Prediction Using Bayesian Networks: A Synthesis Of Models Describing Estuarine Eutrophication, M. E. Borsuk, C.A. Stow, K. H. Reckhow

International Congress on Environmental Modelling and Software

The symptoms of coastal and estuarine eutrophication are the result of a number of interacting processes operating at multiple spatial and temporal scales. Thus, models developed to appropriately represent each of these processes are not easily combined into a single predictive model. We suggest that Bayesian networks provide a possible solution to this problem. The graphical structure explicitly represents cause-and-effect assumptions between system variables that may be obscured under other approaches. These assumptions allow the complex causal chain linking management actions to ecological consequences to be factored into an articulated sequence of conditional relationships. Each of these relationships can then …

Implementation Of A Multiagent Prototype For Wwtp Management, F. Borrell, D. Riaño, Miquel Sànchez-Marrè, Ignasi Rodríguez-Roda

International Congress on Environmental Modelling and Software

The control and management of a Wastewater Treatment Plant (WWTP) is a complex task that requires the supervision of human experts. To ease this task, Multiagent Systems provide a framework for a more efficiently control in environmental processes. A prototype of multiagent system has been designed for WWTP management. Two subgroups of agents are identified: the interface and the intelligent agents. The first subgroup is designed to interact with the plant and the final users. This group contains the monitoring agent, which is used to store and manage all the sensor data incomes, the actuator agent which acts on the …

Probabilistic Finite Automata And Randomness In Nature: A New Approach In The Modelling And Prediction Of Climatic Parameters, L. Mora-López, R. Morales-Bueno, M. Sidrach-De-Cardona, F. Triguero

International Congress on Environmental Modelling and Software

A model to characterize and predict continuous time series from machine learning techniques isproposed. This model includes the following three steps: dynamic discretization of continuous values,construction of probabilistic finite automata and prediction of new series with randomness. The first problemin most models from machine learning is that they are developed for discrete values; however, mostphenomena in nature are continuous. To convert these continuous values into discrete values a dynamicdiscretization method has been used. With the obtained discrete series, we have built probabilistic finiteautomata which include all the representative information which the series contain. The use of probabilisticfinite automata allows us …

Parsimonious Catchment And River Flow Modelling, R. H. Khatibi, R. J. Moore, Martijn J. Booij, D. Cadman, G. Boyce

International Congress on Environmental Modelling and Software

It is increasingly the case that models are being developed as “evolving” products rather than one-off application tools, such that auditable modelling versus ad hoc treatment of models becomes a pivotal issue. Auditable modelling is particularly vital to “parsimonious modelling” aimed at meeting specific modelling requirements. This paper outlines various contributory factors and aims to seed proactively a research topic by inextricably linking value/risk management to parsimonious modelling. Value management in modelling may be implemented in terms of incorporating “enough detail” into a model so that the synergy among the constituent units of the model captures that of the real …

Weathering In Terrestrial Ecosystems: Carbon Sink, P. Egorov, Yuri Svirezhev

International Congress on Environmental Modelling and Software

In the framework of "active planetary cover" concept the influence of weathering on the atmosphere carbon and, as a consequence, on the climate is considered. The relatively slow process of chemical weathering, which is accompanied by an uptake of carbon from the atmosphere and its transportation to the intercontinental and epicontinental seas, is significantly amplified by terrestrial ecosystems. The mechanism of amplification is explained by an increase in CO2 concentration in the "soil" atmosphere caused by root respiration and the metabolism of micro-organisms, the so-called "respiration of soil". In accordance with Zavarzin’s estimation, the concentration of CO2 in the soil …

Solving The Inverse Problem In Stochastic Groundwater Modelling With Artificial Neural Networks, C. Rajanayaka, S. Samarasinghe, D. Kulasiri

International Congress on Environmental Modelling and Software

In this paper, prediction capability of a hybrid Artificial Neural Networks (ANN) was investigatedto solve the groundwater inverse problem. Initially, a Multi Layer Perceptron (MLP) network was developedand it was found that network produced better results when the target range of the parameters is smaller.Therefore, a Self-Organising Network (SON) was used to identify the objective subrange of the parameterand then the MLP model was employed to obtain final estimates. The data for the ANN was obtained from anumerical model that was utilised to simulate the solute transport in saturated groundwater flow. The forwardproblem of the numerical model was solved to …

Data-Based Mechanistic And Top-Down Modelling, Peter C. Young

International Congress on Environmental Modelling and Software

The paper discusses the problems associated with environmental modelling and the need to develop simple, ‘top-down’, stochastic models that match the information content of the data. It introduces the concept of Data-Based Mechanistic (DBM) modelling and contrasts its inductive approach with the hypotheticodeductive approaches that dominate most environmental modelling research at the present time. The major methodological procedures utilized in DBM modelling are outlined and two practical examples illustrate how it has been applied in a hydrological and water quality context. The use of this same methodology as a basis for the evaluation and simplification of large deterministic simulation models …

Optimization Of A Model To Predict Salinity Intrusion In San Francisco Bay Estuary Using A Genetic Algorithm, T. Rajkumar, David E. Thompson

International Congress on Environmental Modelling and Software

Salinity intrusion is a significant issue in the San Francisco Bay Delta because this estuarycontributes substantially to fresh water supply for much of northern California. Traditionally, salinity alongthe estuary has been measured using monitoring instruments installed at various locations within theSacramento-San Joaquin River Delta system, and these measurements are used to predict future conditionsand evaluate the water management alternatives. The California Department of Water Resources DeltaSimulation Model (DWRDSM) is used for this type of analysis. DWRDSM is an unsteady one-dimensionalhydrodynamic and salt transport model. It can provide estimates of salinity at almost any location within theBay-Delta system. However, like many …