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World environmental and Water Resources Congress 2009: Great Rivers

作者： Hoch, Matthew P. Siu, Christina Y. S. Clark, Shirley E. Baker, Katherine H. Department of Biology Lamar University 4400 MLK Blvd. Beaumont TX 77710 United States Penn State Harrisburg School of Science Engineering and Technology 777 West Harrisburg Pike TL 123 Middletown PA 17057 United States Penn State Harrisburg Environmental Engineering Program 777 West Harrisburg Pike TL 105 Middletown PA 17057 United States

ISBN: (纸本)9780784410363

Healthy streams have the physical characteristics and chemical water quality to support healthy and diverse populations of organisms. The Codorus Creek, a tributary to the Susquehanna River, which eventually drains to the Chesapeake Bay, is being restored in several locations. Penn State University (York and Harrisburg campuses) is evaluating the effectiveness of the state-funded restoration activities. We examine the current pollutant loadings of two branches of this stream in conjunction with land use practices, particularly agriculture and wastewater treatment plants. Fish, macroinvertebrates, and periphyton are routinely sampled. Streamwater sampling for water chemistry analyses occurs during both baseflow and storm event conditions. Restored sites are being compared to both impaired and control sites to determine whether restoration has any significant reduction in a pollutant's load. Preliminary results indicate that the southern branch has greater impairment than the eastern branch. The southern branch impaired site showed greater annual mean loads of total nitrogen and total phosphorus, a macroinvertebrate community dominated by pollution tolerant organisms, and a greater number of fish with parasitic diseases. All sources contributing to the total nitrogen load to Codorus Creek have not been identified. Although restoration activities may decrease pollutant loads, such as as suspended solids, restoration is not believed to be effective in decreasing nitrogen loads. Nitrogen is found more readily in the aqueous phase (streamwater) rather than adsorbed to sediment particles. Therefore, more effective ways to remove nitrogen in water is to decrease or eliminate the source or to treat the streamwater directly. Further monitoring and comparison of restored sites to control and impaired sites are needed. In addition, future work on the toxicity of the legacy sediments has been proposed. © 2009 ASCE.

关键词： Restoration

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Cover Picture: Photoelectron Generation by Photosystem II Core Complexes Tethered to Gold Surfaces (ChemSusChem 4/2010)

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ChemSusChem 2010年第4期3卷 393-393页

作者： Michele Vittadello Prof. Maxim Y. Gorbunov Prof. Daniel T. Mastrogiovanni Leszek S. Wielunski Dr. Eric L. Garfunkel Prof. Fernando Guerrero Dr. Diana Kirilovsky Dr. Miwa Sugiura Prof. A. William Rutherford Dr. Ahmad Safari Prof. Paul G. Falkowski Prof. Department of Chemistry and Chemical Biology Rutgers The State University of New Jersey 610 Taylor Road Piscataway NJ 08854 (USA) Fax: (+1) 732-932-4083 PECS Department Medgar Evers College of the City University of New York 1650 Bedford Avenue Brooklyn NY 11225 (USA) Environmental Biophysics and Molecular Ecology Program Institute of Marine and Coastal Sciences Rutgers The State University of New Jersey 71 Dudley Road New Brunswick NJ 08901-8521 (USA) Department of Physics Rutgers The State University of New Jersey 619 Allison Road Piscataway NJ 08854 (USA) Unité de Recherche Associée 2096 Centre National de la Recherche Scientifique Service de Bioénergétique 91191 Gif-sur-Yvette (France) Cell-Free Science and Technology Research Center Ehime University Bunkyo-cho Matsuyama Ehime 790-8577 (Japan) Department of Materials Science and Engineering Rutgers The State University of New Jersey 607 Taylor Road Piscataway NJ 08854-8065 (USA)

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Site specific farming, environmental concerns, and associated advanced technologies, provide a platform for active learning and research at a land grant university

Site specific farming, environmental concerns, and associate...

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2008 ASEE Annual Conference and Exposition

作者： Nagchaudhuri, Abhijit Mitra, Madhumi Marsh, Lurline Daughtry, Craig Earle, Tracy Schwarz, Jurgen University of Maryland Eastern Shore Department of Engineering and Aviation Sciences University of Maryland Eastern Shore Department of Biology and Environmental Science University of Maryland Eastern Shore Biology Education Program UMES Department of Agriculture and Resource Sciences University of Maryland Eastern Shore United States Department of Agriculture USDA-ARS Hydrology and Remote Sensing Laboratory Beltsville MD United States Dept of Agriculture UMES Department of Agriculture and Resource Sciences Program in Food Science and Technology

A course titled "Advanced Technologies in Agriculture and environmental sciences" was offered for the first time at the University of Maryland Eastern Shore in spring of 2007. The course was conceived to develop a broader student base for the "Precision Agriculture" related activities that have been ongoing at UMES for the past few years, with support from the United States Department of Agriculture (USDA) and Maryland Space Grant Consortium (MDSGC), and as such has been opened to all science, Technology, engineering, and Mathematics (STEM) seniors and graduate students on campus. In an effort to diffuse the compartmentalization of knowledge and rigid disciplinary boundaries within academia, the course has been designed to be a multi-instructor course. Faculty and staff from Agriculture, Natural sciences, engineering, Aviation sciences, and collaborators from USDA, NASA, and representatives from a local industry involved in "Precision Farming" have worked together to plan and deliver the course. The course content spans over the fundamentals of global positioning systems (GPS), yield monitoring, soil testing, variable rate applicators, fundamentals of plant physiology and agronomy, Geographical Information Systems (GIS), statistics and data analysis, aerial imaging and remote sensing, & nutrient and watershed management. Significant field work using various field sensors, including a chlorophyll meter, pH meter, and other instrumentation to measure leaf area index (LAI) in conjunction with hand held GPS units, is integrated with the course. Funds from USDA will cover at least four summer interns who will be selected from the course participants each year, while the grant is active (2009) to continue experiential learning and research activities initiated in spring as an integral part of the course, during the summer months. © American Society for engineering Education, 2008.

关键词： Global positioning system

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Millimeter-scale genetic gradients and community-level molecular convergence in a hypersaline microbial mat

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Molecular Systems biology 2008年第1期4卷 198-198页

作者： Kunin, Victor Raes, Jeroen Harris, J. Kirk Spear, John R. Walker, Jeffrey J. Ivanova, Natalia Von Mering, Christian Bebout, Brad M. Pace, Norman R. Bork, Peer Hugenholtz, Philip Microbial Ecology Program DOE Joint Genome Institute Walnut Creek CA United States Structural and Computational Biology Unit European Molecular Biology Laboratory Heidelberg Germany Department of Pediatrics University of Colorado Denver Aurora CO United States Division of Environmental Science and Engineering Colorado School of Mines Golden CO United States Department of Molecular Cellular and Developmental Biology University of Colorado Boulder CO United States Genome Biology Program DOE Joint Genome Institute Walnut Creek CA United States Institute of Molecular Biology Swiss Institute of Bioinformatics University of Zurich Zurich Switzerland Microbial Ecology/Biogeochemistry Research Laboratory Exobiology Branch NASA Ames Research Center Moffett Field CA United States Microbial Ecology Program DOE Joint Genome Institute Walnut Creek CA 94598 2800 Mitchell Drive United States

To investigate the extent of genetic stratification in structured microbial communities, we compared the metagenomes of 10 successive layers of a phylogenetically complex hypersaline mat from Guerrero Negro, Mexico. We found pronounced millimeter-scale genetic gradients that were consistent with the physicochemical profile of the mat. Despite these gradients, all layers displayed near-identical and acid-shifted isoelectric point profiles due to a molecular convergence of amino-acid usage, indicating that hypersalinity enforces an overriding selective pressure on the mat community. © 2008 EMBO and Nature Publishing Group All rights reserved.

关键词： Fine-scale Hypersalinity Metagenomics Microbial ecology Salt-in

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Rich learning experiences for minority undergraduate students through inquiry-based project activities in the field and laboratory settings

Rich learning experiences for minority undergraduate student...

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114th Annual ASEE Conference and Exposition, 2007

作者： Nagchaudhuri, Abhijit Mitra, Madhumi Stoakley, Rose Turner, Tiara Cherinet, Suraf Ladd, Gabriel Chalyam, Harsha Hartman, Christopher Burrows-Mcelwain, James B. University of Maryland-Eastern Shore United States Department of Engineering and Aviation Sciences University of Maryland Eastern Shore United States ASME SME ASEE Department of Biology and Environmental Science University of Maryland Eastern Shore United States Biology Education Program UMES France Mathematics Program University of Maryland Eastern Shore Department of Mathemtics and Computer Sciences United States Aviation Science Program University of Maryland Eastern Shore United States Graduate Program UMES United States Department of Mathematics and Computer Science University of Maryland Eastern Shore United States Aviation Science Program Department of Engineering and Aviation Science University of Maryland Eastern Shore United States Aviation Program Department of Engineering and Aviation Sciences Aviation Program

With support from HBCU-UP (Historically Black College and University Undergraduate program) at National science Foundation (NSF), the ACTION (Advanced Curriculum and Technology-Based Instructional Opportunities Network) program at University of Maryland Eastern Shore (UMES) is promoting inquiry based active learning and research projects among undergraduate STEM (science, Technology, engineering and Mathematics) majors. Field based experiential learning efforts titled (i) AIRSPACES: Aerial Imaging and Remote Sensing for Precision Agriculture and environmental Stewardship and (ii) ECPA: environmentally Conscious Precision Agriculture, provided a perfect setting for STEM undergraduates to interact with UMES farm personnel, graduate students, NASA and USDA researchers collaborating with the faculty members in the project. In the summer of 2006 ACTION program supported three undergraduate students to work with the principal author to work on a chosen aspect of the ongoing effort. For this ACTION project students decided to focus on aspects of yield monitoring and remote sensing for the precision agriculture project at UMES. This paper will highlight the student efforts related to the ACTION project for 2006 summer and discuss how the out of classroom, field, and laboratory based activities enhanced learning. © American Society for engineering Education, 2007.

关键词： Learning systems

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Technology education in K-12: Revelations from designing and delivering a robotics lesson plan for pre-service teachers

Technology education in K-12: Revelations from designing and...

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114th Annual ASEE Conference and Exposition, 2007

作者： Nagchaudhuri, Abhijit Mitra, Madhumi University of Maryland Eastern Shore United States Department of Engineering and Aviation Sciences University of Maryland Eastern Shore United States ASME SME ASEE Department of Biology and Environmental Science University of Maryland Eastern Shore United States Biology Education Program UMES France

In partnership with NASA, National Institute of Aerospace (NIA) and Bennett College for Women, University of Maryland Eastern Shore (UMES) hosted the 11thPre-service Teacher program. The program had two significant components: a) A national Pre-service Teacher Conference (PSTC) held at Alexandria, VA, during February 16-18, 2006, that drew participation from HBCUs (Historically Black Colleges and Universities), HSIs(Hispanic Serving Institutions), TCUs ( Tribal Colleges and Universities) and majority universities with significant minority enrollment and b) An intensive two week Preservice Teacher Institute (PSTI) in the summer for a relatively small group of pre-service teachers held at NASA Langley for inspiring future K-12 teachers in the fields of mathematics, science, and technology education fields. This paper will focus on a robotics activity designed by the primary author for the PSTI. While designing the activity the technology education standards as proposed by ITEA (International Technology Education Association)/CTTE (Council on Technology Teacher Education) and ISTE (International Standard for Technology Education) were consulted and incorporated in the lesson. For the primary author, who is an engineering educator the experience revealed the confusion that prevails in the teacher education field with regard to "technology education" and its evolving standards. It is important for engineering educators to get involved and facilitate K-12 curricula development efforts based on these standards, and provide clarity to how "technology education" in the K-12 is related to vocational technology, instructional technology, mathematics, sciences, engineering and engineering technology. © American Society for engineering Education, 2007.

关键词： engineering education

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Sodium Stress in the Halophyte Thellungiella halophila and Transcriptional Changes in a thsos1-RNA Interference Line

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Journal of Integrative Plant biology 2007年第10期49卷 1484-1496页

作者： Dong-Ha Oh Qingqiu Gong Alex Ulanov Quan Zhang Youzhi Li Wenying Ma Dae-Jin Yun Ray A. Bressan Hans J. Bohnert Division of Applied Life Science (BK21 Program) and Environmental Biotechnology National Core Research Center Graduate School of Gyeongsang National University Jinju 660-701 Korea Departments of Plant Biology and of Crop Sciences University of Illinois at Urbana-Champaign Urbana IL 61801 USA Key Laboratory of Plant Stress Research College of Life Science Shandong Normal University Jinan 250014 China Key Laboratory of the Ministry of Education for Microbial and Plant Genetic Engineering Guangxi University Nanning 530005 China Department of Horticulture and Landscape Architecture Purdue University West-Lafayette IN 47907 USA

The plasma membrane Na＋/H＋-antiporter salt overly sensitive1 （SOS1） from the halophytic Arabidopsis-relative Thellungiella halophila （ThSOS1） shows conserved sequence and domain structure with the orthologous genes from Arabidopsis thaliana and other plants. When expression of ThSOSt was reduced by RNA interference （RNAi）, pronounced characteristics of salt-sensitivity were observed. We were interested in monitoring altered transcriptional responses between Thellungiella wild type and thsost-4, a representative RNAi line with particular emphasis on root responses to salt stress at 350 mmol/L NaCI, a concentration that is only moderately stressful for mature wild type plants. Transcript profiling revealed several functional categories of genes that were differently affected in wild-type and RNAi plants. Down-regulation of SOS1 resulted in different gene expression even in the absence of stress. The pattern of gene induction in the RNAi plant under salt stress was similar to that of glycophytic Arabidopsis rather than that of wild type Thellungiella. The RNAi plants failed to down-regulate functions that are normally reduced in wild type Thellungiella upon stress and did not up-regulate functions that characterize the Thellungiella salt stress response. Metabolite changes observed in wild type Thellungiella after salt stress were less pronounced or absent in RNAi plants. Transcript and metabolite behavior suggested SOS1 functions including but also extending its established function as a sodium transporter. The down-regulation of ThSOS1 converted the halophyte Thellungiella into a salt-sensitive plant.

关键词： salt stress salt overly sensitive1 RNA interference Thellungiella halophila transcript profiling.

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Multi-campus design and implementation of problem-based-learning courses in environmental biotechnology with interdisciplinary learning

Multi-campus design and implementation of problem-based-lear...

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114th Annual ASEE Conference and Exposition, 2007

作者： Hilger, Helene De, Reyes, Francis Los DiBiase, Warren Holmes, Len Luster-Teasley, Stephanie Mandjiny, Siva Schimmel, Keith Steck, Todd Wang, Chuang University of North Carolina Charlotte United States Department of Civil and Environmental Engineering University of North Carolina Charlotte United States North Carolina State University United States Department of Civil Construction and Environmental Engineering North Carolina State University United States Department of Science Education University of North Carolina Charlotte United States University of North Carolina Pembroke United States Department of Chemistry University of North Carolina Pembroke United States North Carolina A and T State University United States Pembroke NC United States Department of Chemical Engineering Energy and Environmental Ph.D. Program North Carolina Agricultural and Technical State University Greensboro NC United States Department of Biology University of North Carolina - Charlotte Charlotte NC United States Department of Educational Research University of North Carolina Charlotte United States

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Marine mammal noise-exposure criteria: Initial scientific recommendations

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Bioacoustics 2008年第1-3期17卷 273-275页

作者： Southall, Brandon L. Bowles, Ann E. Ellison, William T. Finneran, James J. Gentry, Roger L. Greene, Charles R. Kastak, David Ketten, Darlene R. Miller, James H. Nachtigall, Paul E. Richardson, W. John Thomas, Jeanette A. Tyack, Peter L. Marine Ecosystems Division Ocean Acoustics Program National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service Office of Science and Technology Silver Spring MD 20910-6233 1315 East-West Highway United States Long Marine Laboratory University of California Santa Cruz Santa Cruz CA 95060 100 Shaffer Road United States Hubbs-Sea World Research Institute San Diego CA 92109 2595 Ingraham Street United States Marine Acoustics Inc. Middletown RI 02842 809 Aquidneck Avenue United States U. S. Navy Marine Mammal Program Space and Naval Warfare Systems Center San Diego San Diego CA 92152-5000 53560 Hull Street United States ProScience Consulting LLC Dickerson MD 20842-0177 22331 Mt. Ephraim Road United States Greeneridge Sciences Inc. Santa Barbara CA 93110 4512 Via Huerto United States Woods Hole Oceanographic Institution Woods Hole MA 02543 United States Department of Otology and Laryngology Harvard Medical School Boston MA 02114 United States Department of Ocean Engineering University of Rhode Island Narragansett RI 02882 South Ferry Road United States Hawaii Institute of Marine Biology Kane'ohe HI 96744 P.O. Box 1346 United States LGL Ltd. Environmental Research Associates King City ON L7B 1A6 P.O. Box 280 22 Fisher Street Canada Department of Biological Sciences Western Illinois University Quad Cities Moline IL 61265 3561 60th Street United States

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Workshop on imaging science development for cancer prevention and preemption

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Cancer Biomarkers 2007年第1期3卷 1-33页

作者： Kelloff, Gary J. Sullivan, Daniel C. Baker, Houston Clarke, Lawrence P. Nordstrom, Robert Tatum, James L. Dorfman, Gary S. Jacobs, Paula Berg, Christine D. Pomper, Martin G. Birrer, Michael J. Tempero, Margaret Higley, Howard R. Petty, Brenda Gumbs Sigman, Caroline C. Maley, Carlo Sharma, Prateek Wax, Adam Ginsberg, Gregory G. Dannenberg, Andrew J. Hawk, Ernest T. Messing, Edward M. Grossman, H. Barton Harisinghani, Mukesh Bigio, Irving J. Griebel, Donna Henson, Donald E. Fabian, Carol J. Ferrara, Katherine Fantini, Sergio Schnall, Mitchell D. Zujewski, Jo Anne Hayes, Wendy Klein, Eric A. DeMarzo, Angelo Ocak, Iclal Ketterling, Jeffrey A. Tempany, Clare Shtern, Faina Parnes, Howard L. Gomez, Jorge Srivastava, Sudhir Szabo, Eva Lam, Stephen Seibel, Eric J. Massion, Pierre McLennan, Geoffrey Cleary, Kevin Suh, Robert Burt, Randall W. Pfeiffer, Ruth M. Hoffman, John M. Roy, Hemant K. Wang, Thomas Limburg, Paul J. El-Deiry, Wafik S. Papadimitrakopoulou, Vali Hittelman, Walter N. MacAulay, Calum Veltri, Robert W. Solomonzz, Diane Jeronimo, Jose Richards-Kortum, Rebecca Johnson, Karen A. Viner, Jaye L. Stratton, Steven P. Rajadhyaksha, Milind Dhawan, Atam NIH/NCI/DCTD Cancer Imaging Program Bethesda MD United States NIH/NCI/DCTD Cancer Imaging Program NCI-Frederick Frederick MD United States NIH/NCI/DCP Early Detection Research Group Bethesda MD United States The Johns Hopkins University School of Medicine Departments of Radiology Pharmacology and Oncology Division of Neuroradiology Baltimore MD United States NIH/NCI/CCR Cell and Cancer Biology Branch Bethesda MD United States University of California San Francisco Department of Medicine Division of Medical Oncology San Francisco CA United States CCS Associates Inc. Mountain View CA United States Wistar Institute Molecular and Cellular Oncogenesis Program Philadelphia PA United States University of Kansas School of Medicine VA Hospital Kansas City MO United States Duke University Department of Biomedical Engineering Medical Physics Program Durham NC United States University of Pennsylvania School of Medicine Department of Gastroenterology Philadelphia PA United States New York Presbyterian Hospital Weill Medical College of Cornell University New York NY United States NIH/NCI/OD Office of Centers for Training and Resources Bethesda MD United States University of Rochester Medical Center Department of Urology Rochester NY United States University of Texas MD Anderson Cancer Center Department of Urology Houston TX United States Massachusetts General Hospital Abdominal Imaging/Interventional Radiology Boston MA United States Boston University Biomedical Engineering Electrical and Computer Engineering and Physics Boston MA United States NIH/NCI/DCP Gastrointestinal and Other Cancers Research Group Bethesda MD United States The George Washington University Cancer Institute Office of Cancer Prevention and Control Washington DC United States University of Kansas Cancer Center Clinical Oncology Kansas City KS United States University of California Davis Department of Biomedical Engineering Davis CA United States Tufts University De

The concept of intraepithelial neoplasm (IEN) as a near-obligate precursor of cancers has generated opportunities to examine drug or device intervention strategies that may reverse or retard the sometimes lengthy process of carcinogenesis. Chemopreventive agents with high therapeutic indices, well-monitored for efficacy and safety, are greatly needed, as is development of less invasive or minimally disruptive visualization and assessment methods to safely screen nominally healthy but at-risk patients, often for extended periods of time and at repeated intervals. Imaging devices, alone or in combination with anticancer drugs, may also provide novel interventions to treat or prevent precancer.

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