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Sample records for lynda malik suzanne

  1. Suzanne Newton's "I Will Call it Georgie's Blues".

    ERIC Educational Resources Information Center

    Scales, Pat

    1998-01-01

    Summarizes Suzanne Newton's children's book, "I Will Call It Georgie's Blues." Includes discussion questions about the book, and a list of activities. Provides an annotated bibliography of fiction, picture books, nonfiction, and biography titles about jazz and jazz musicians. (AEF)

  2. Activist for change: an interview with suzanne arms.

    PubMed

    Zwelling, Elaine

    2002-01-01

    Suzanne Arms's name is readily recognized by many in the field of perinatal education. For 30 years she has been a tireless advocate for childbearing women, a fighter for change in the traditional maternity care system, and a feminist with strong beliefs about the physical, emotional, and spiritual impact of birth. Arms's well-known books and frequent speaking engagements have allowed her to spread her message and her plea to humanize the childbirth experience. Talking with Arms is an energizing encounter. Her life path is a powerful and compelling story that is an inspiration to all who continue to work to make birth a positive event in the lives of women and their families. PMID:17273317

  3. Activist for Change: An Interview with Suzanne Arms

    PubMed Central

    Zwelling, Elaine

    2002-01-01

    Suzanne Arms's name is readily recognized by many in the field of perinatal education. For 30 years she has been a tireless advocate for childbearing women, a fighter for change in the traditional maternity care system, and a feminist with strong beliefs about the physical, emotional, and spiritual impact of birth. Arms's well-known books and frequent speaking engagements have allowed her to spread her message and her plea to humanize the childbirth experience. Talking with Arms is an energizing encounter. Her life path is a powerful and compelling story that is an inspiration to all who continue to work to make birth a positive event in the lives of women and their families. PMID:17273317

  4. A Discussion with Suzanne Fisher Staples: The Author as Writer and Cultural Observer.

    ERIC Educational Resources Information Center

    Sawyer, Walter E.; Sawyer, Jean C.

    1993-01-01

    Presents an interview with Suzanne Fisher Staples, author of the children's novel, "Shabanu, Daughter of the Wind." Discusses Staples' creative writing process, background, and the writer's role as cultural observer. (HB)

  5. Interview with a quality leader: Dr. Suzanne Delbanco, on healthcare payment reform. Interviewed by Kevin Warren.

    PubMed

    Delbanco, Suzanne

    2011-01-01

    Suzanne F. Delbanco is the executive director of Catalyst for Payment Reform (CPR), a nonprofit organization working for coordinated action among the largest purchasers of healthcare and health plans to reform the way we pay for healthcare in the United States to improve quality and cost. In addition to her duties at CPR, Suzanne is on the Advisory Committee to the Director and the National Biosurveillance Advisory Subcommittee of the Centers for Disease Control and Prevention. She also serves on the boards of HCI3, the Anvita Health Advisory Council, the executive committee of the California Maternal Quality Care Collaborative, and participates in the Healthcare Executives Leadership Network. Before CPR, Suzanne was President, Health Care Division at Arrowsight Inc., a company using video to help hospitals measure the performance of healthcare workers and provide them with feedback while they are working to improve adherence to safety and quality protocols. From 2000 to 2007, Suzanne was the founding CEO of The Leapfrog Group. The Leapfrog Group uses the collective leverage of its large corporate and public members to initiate breakthrough improvements in the safety, quality, and affordability of healthcare for Americans. Before joining Leapfrog, Suzanne was a senior manager at the Pacific Business Group on Health where she worked on the Quality Team. Suzanne holds a PhD in Public Policy from the Goldman School of Public Policy and a MPH from the School of Public Health at the University of California, Berkeley. PMID:22414016

  6. Interview with Suzanne Oparil, MD. Interview by Marvin Moser, MD.

    PubMed

    Oparil, Suzanne

    2004-09-01

    In this month's issue of The Journal of Clinical Hypertension, we highlight another hypertension icon. Dr. Suzanne Oparil is a clinical cardiologist who has been involved in the investigation of some of the fundamental mechanisms of vascular disease. Information derived from her studies has been used to develop specific treatments for hypertension. Dr. Oparil was one of those few women who attended medical school at a time when most of the students were males. She graduated at the top of her class at Columbia University College of Physicians and Surgeons and trained at Columbia and the Massachusetts General Hospital. She was on the faculty of the University of Chicago until 1977, when she transferred to become Professor of Medicine,Physiology, and Biophysics at the University of Alabama at Birmingham, where she has continued her research. Early in her career, Dr. Oparil observed that angiotensin-converting enzyme (ACE) was capable of generating a vasoconstrictor hormone, angiotensin II. Her work, along with that of investigators at the Massachusetts General Hospital and other institutions, led to the development of ACE inhibitors. Initially, Dr. Oparil's interest was focused on the pulmonary circulation. She identified endothelin as a major mediator of pulmonary hyper-tension and as a potent vasoconstrictor. In recent years, she has been investigating novel pathways by which estrogens protect against vascular injury. Her work has led to important clues about how female sex hormones protect blood vessels. Throughout her career as a basic scientist, Dr. Oparil has also maintained a clinical interest. She has been involved in numerous hypertension clinical trials with different medications. She served as President of the American Heart Association and was the first woman president of the American Federation of Medical Research. Dr. Oparil has always been an outspoken critic of those in medicine who speak to hear themselves heard. She has been a strong advocate of

  7. The Influence of Emerging Nursing Strategy and Policy Leaders: An Interview With Dr Suzanne Miyamoto.

    PubMed

    Miyamoto, Suzanne; Adams, Jeffrey M

    2015-09-01

    This department highlights emerging nursing leaders who have demonstrated great potential in advancing innovation and patient care leadership in practice, policy, research, education, and theory. This interview profiles Suzanne Miyamoto, PhD, RN, Senior Director of Government Affairs and Health Policy at the American Association of Colleges of Nursing. PMID:26301549

  8. An Open Letter to Suzanne deCastell and Tom Walker.

    ERIC Educational Resources Information Center

    Assinck, Beverly Belvin

    1993-01-01

    Responds to "Identity, Metamorphosis, and Ethnographic Research: What Kind of Story Is Ways with Words?" by Suzanne deCastell and Tom Walker (1991). Describes the author's reaction to "Ways with Words--Language, Life and Work in Communities and Classrooms" by Shirley Brice Heath (1983). (SLD)

  9. The Last Battle: With "Mockingjay" on Its Way, Suzanne Collins Weighs in on Katniss and the Capitol

    ERIC Educational Resources Information Center

    Margolis, Rick

    2010-01-01

    Ever since Katniss Everdeen, the arrow-slinging heroine of Suzanne Collins's "Hunger Games" trilogy, was snatched from the cruel clutches of a ruthless government, one can't stop thinking about the feisty 16-year-old from District 12. What sort of flesh-devouring, mutant killing machine awaits her next? How can she possibly lead a successful…

  10. Application of Perona Malik anisotropic diffusion on digital radiographic image

    SciTech Connect

    Halim, Suhaila Abd; Razak, Rohayu Abdul; Ibrahim, Arsmah; Manurung, Yupiter HP

    2014-07-10

    Perona Malik Anisotropic Diffusion (PMAD) is a very useful and efficient denoising technique if the parameters are properly selected. Overestimating the parameters may cause oversmoothed and underestimating it may leave unfiltered noise. This makes the selection of parameters a crucial process. In this paper the PMAD model is solved using a finite difference scheme The discretized model is evaluated using different diffusion coefficient of exponential and quadratic on defective radiographic images in terms of quality and efficiency. In the application of the PMAD model on image data, a set of defective radiographic images of welding is used as input data. Peak Signal to Noise Ratio (PSNR), Structural Similarity Measure (SSIM) and temporal time are used to evaluate the performance of the model. The implementation of the experiment has been carried out using MATLAB R2009a. In terms of quality, results show that the Quadratic Diffusion Coefficient Function (QDCF) provides better results compared with the Exponential Diffusion Coefficient Function (EDCF). In conclusion, the denoising effect using PMAD model based on finite difference scheme shows able to improve image quality by removing noise in the defective radiographic image.

  11. Suzanne F. Delbanco on the Leapfrog Group and employer purchasing power. Interview by Pamela K. Scarrow.

    PubMed

    Delbanco, Suzanne F

    2004-01-01

    Suzanne F. Delbanco, PhD MPH, is the first executive director of The Leapfrog Group, founded by the Business Roundtable. The Leapfrog Group's goal is to mobilize employer purchasing power to initiate breakthrough improvements in the safety, quality, and overall value of healthcare for American consumers. The group's growing consortium of more than 155 Fortune 500 companies and other large private and public healthcare purchasers provides health benefits to more than 34 million Americans; these companies spend more than 62 billion dollars on healthcare annually. Dr. Delbanco is a member of the National Committee for Quality Assurance Purchaser Advisory Council and a board member of Bridges to Excellence. Before joining The Leapfrog Group, she was a senior manager at the Pacific Business Group on Health (PBGH), where she worked on the quality team. Prior to joining PBGH, she worked on reproductive health policy and the changing healthcare marketplace initiative at the Henry J. Kaiser Family Foundation. She has also consulted on health insurance coverage in the temporary employment industry and on the first statewide survey in California of MediCal beneficiaries, and worked as a community Liaison for Kaiser Permanente during the establishment of one of California's first County Organized Health Systems. She holds a PhD in public policy from the Goldman School of Public PoLicy and a MPH from the School of Public Health at the University of California, Berkeley. PMID:15468651

  12. HPM-based dynamic sparse grid approach for Perona-Malik equation.

    PubMed

    Mei, Shu-Li; Zhu, De-Hai

    2014-01-01

    The Perona-Malik equation is a famous image edge-preserved denoising model, which is represented as a nonlinear 2-dimension partial differential equation. Based on the homotopy perturbation method (HPM) and the multiscale interpolation theory, a dynamic sparse grid method for Perona-Malik was constructed in this paper. Compared with the traditional multiscale numerical techniques, the proposed method is independent of the basis function. In this method, a dynamic choice scheme of external grid points is proposed to eliminate the artifacts introduced by the partitioning technique. In order to decrease the calculation amount introduced by the change of the external grid points, the Newton interpolation technique is employed instead of the traditional Lagrange interpolation operator, and the condition number of the discretized matrix different equations is taken into account of the choice of the external grid points. Using the new numerical scheme, the time complexity of the sparse grid method for the image denoising is decreased to O(4 (J+2j)) from O(4(3J)), (j ≪ J). The experiment results show that the dynamic choice scheme of the external gird points can eliminate the boundary effect effectively and the efficiency can also be improved greatly comparing with the classical interval wavelets numerical methods. PMID:25050394

  13. HPM-Based Dynamic Sparse Grid Approach for Perona-Malik Equation

    PubMed Central

    Mei, Shu-Li; Zhu, De-Hai

    2014-01-01

    The Perona-Malik equation is a famous image edge-preserved denoising model, which is represented as a nonlinear 2-dimension partial differential equation. Based on the homotopy perturbation method (HPM) and the multiscale interpolation theory, a dynamic sparse grid method for Perona-Malik was constructed in this paper. Compared with the traditional multiscale numerical techniques, the proposed method is independent of the basis function. In this method, a dynamic choice scheme of external grid points is proposed to eliminate the artifacts introduced by the partitioning technique. In order to decrease the calculation amount introduced by the change of the external grid points, the Newton interpolation technique is employed instead of the traditional Lagrange interpolation operator, and the condition number of the discretized matrix different equations is taken into account of the choice of the external grid points. Using the new numerical scheme, the time complexity of the sparse grid method for the image denoising is decreased to O(4J+2j) from O(43J), (j ≪ J). The experiment results show that the dynamic choice scheme of the external gird points can eliminate the boundary effect effectively and the efficiency can also be improved greatly comparing with the classical interval wavelets numerical methods. PMID:25050394

  14. Vessel Delineation in Retinal Images using Leung-Malik filters and Two Levels Hierarchical Learning

    PubMed Central

    Varnousfaderani, Ehsan S; Yousefi, Siamak; Bowd, Christopher; Belghith, Akram; Goldbaum, Michael H.

    2015-01-01

    Blood vessel segmentation is important for the analysis of ocular fundus images for diseases affecting vessel caliber, occlusion, leakage, inflammation, and proliferation. We introduce a novel supervised method to evaluate performance of Leung-Malik filters in delineating vessels. First, feature vectors are extracted for every pixel with respect to the response of Leung-Malik filters on green channel retinal images in different orientations and scales. A two level hierarchical learning framework is proposed to segment vessels in retinal images with confounding disease abnormalities. In the first level, three expert classifiers are trained to delineate 1) vessels, 2) background, and 3) retinal pathologies including abnormal pathologies such as lesions and anatomical structures such as optic disc. In the second level, a new classifier is trained to detect vessels and non-vessel pixels based on results of the expert classifiers. Qualitative evaluation shows the effectiveness of the proposed expert classifiers in modeling retinal pathologies. Quantitative results on two standard datasets STARE (AUC = 0.971, Acc=0.927) and DRIVE (AUC = 0.955, Acc =0.903) are comparable with other state-of-the-art vessel segmentation methods. PMID:26958253

  15. Perona Malik anisotropic diffusion model using Peaceman Rachford scheme on digital radiographic image

    SciTech Connect

    Halim, Suhaila Abd; Razak, Rohayu Abd; Ibrahim, Arsmah; Manurung, Yupiter HP

    2014-06-19

    In image processing, it is important to remove noise without affecting the image structure as well as preserving all the edges. Perona Malik Anisotropic Diffusion (PMAD) is a PDE-based model which is suitable for image denoising and edge detection problems. In this paper, the Peaceman Rachford scheme is applied on PMAD to remove unwanted noise as the scheme is efficient and unconditionally stable. The capability of the scheme to remove noise is evaluated on several digital radiography weld defect images computed using MATLAB R2009a. Experimental results obtained show that the Peaceman Rachford scheme improves the image quality substantially well based on the Peak Signal to Noise Ratio (PSNR). The Peaceman Rachford scheme used in solving the PMAD model successfully removes unwanted noise in digital radiographic image.

  16. Mutations Affecting the BHLHA9 DNA-Binding Domain Cause MSSD, Mesoaxial Synostotic Syndactyly with Phalangeal Reduction, Malik-Percin Type

    PubMed Central

    Malik, Sajid; Percin, Ferda E.; Bornholdt, Dorothea; Albrecht, Beate; Percesepe, Antonio; Koch, Manuela C.; Landi, Antonio; Fritz, Barbara; Khan, Rizwan; Mumtaz, Sara; Akarsu, Nurten A.; Grzeschik, Karl-Heinz

    2014-01-01

    Mesoaxial synostotic syndactyly, Malik-Percin type (MSSD) (syndactyly type IX) is a rare autosomal-recessive nonsyndromic digit anomaly with only two affected families reported so far. We previously showed that the trait is genetically distinct from other syndactyly types, and through autozygosity mapping we had identified a locus on chromosome 17p13.3 for this unique limb malformation. Here, we extend the number of independent pedigrees from various geographic regions segregating MSSD to a total of six. We demonstrate that three neighboring missense mutations affecting the highly conserved DNA-binding region of the basic helix-loop-helix A9 transcription factor (BHLHA9) are associated with this phenotype. Recombinant BHLHA9 generated by transient gene expression is shown to be located in the cytoplasm and the cell nucleus. Transcription factors 3, 4, and 12, members of the E protein (class I) family of helix-loop-helix transcription factors, are highlighted in yeast two-hybrid analysis as potential dimerization partners for BHLHA9. In the presence of BHLHA9, the potential of these three proteins to activate expression of an E-box-regulated target gene is reduced considerably. BHLHA9 harboring one of the three substitutions detected in MSSD-affected individuals eliminates entirely the transcription activation by these class I bHLH proteins. We conclude that by dimerizing with other bHLH protein monomers, BHLHA9 could fine tune the expression of regulatory factors governing determination of central limb mesenchyme cells, a function made impossible by altering critical amino acids in the DNA binding domain. These findings identify BHLHA9 as an essential player in the regulatory network governing limb morphogenesis in humans. PMID:25466284

  17. "Critical Perspectives on Project Head Start: Revisioning the Hope and Challenge," edited by Jeanne Ellsworth and Lynda Ames. Book Review.

    ERIC Educational Resources Information Center

    Ceglowski, Deborah

    2002-01-01

    Describes Ellsworth and Ames' edited book as an eclectic collection including historical, ethnographic, autobiographical, empirical, and self-reflective texts. Maintains that although the book is an important contribution to the literature by placing current practices into historical and social context, thereby leading to a more critical view of…

  18. Malik`s Technique of Single Loop Fixation of Posterior Chamber Intraocular Lens in Presence of Partial Capsular Support

    PubMed Central

    Singh Malik, Krishan Pal; Goel, Ruchi; Kishore, Divya; Nagpal, Smriti

    2015-01-01

    Single loop fixation of posterior chamber intraocular lens in the presence of partial capsular support is usually performed by creation of additional scleral flap or tunnel. This extra port may expose the suture holding the intraocular lens or the tucked-in lens haptics to the outside environment thereby increasing the risk of endophthalmitis. We describe a technique of single loop fixation where the scleral tunnel is created adjacent to the site with the absent capsule, the leading haptic is placed on the capsular scaffold, the trailing haptic is tied to 9-0 polypropylene, and the suture is then secured to the inner edge of the scleral lip with enough tension to center the optics and the wound is then closed. The suture knot gets buried within the scleral tunnel with no external communication and does not require a separate port. It is an easy, safe, fast and reproducible technique with a lens tilt of less than 2°. PMID:26962380

  19. Response to commentaries by Karin Rolanda Jongsma and Suzanne van de Vathorst, and Oliver Hallich.

    PubMed

    Buller, Thomas

    2015-08-01

    The authors of the two commentaries raise some interesting and important objections to my paper, 'Advance Consent, Critical Interests, and Dementia Research'. In my response I try to show that the objections raised can be understood as general objections against advance directives, rather than against research directives in particular. Since my main argument in the paper is that if we accept advance directives for treatment then we should accept them for research, arguments showing that we should not accept advance directives at all are consistent with my point of view. PMID:25887513

  20. Nurse Burnout Waddill-Goad Suzanne Nurse Burnout 288pp £24.95 Sigma Theta Tau International Honor Society of Nursing 9781938835889 1938835883 [Formula: see text].

    PubMed

    2016-05-01

    EASY TO read and set out well, this book provides summaries and objectives for dealing with the effects of stress among healthcare professionals. It offers nurses plenty of advice on how to look after themselves and prevent emotional and physical exhaustion. PMID:27138509

  1. What Work of Adult Fiction or Nonfiction Do You Recommend to Other Teachers for Summer Reading?

    ERIC Educational Resources Information Center

    Miller, Susanne; Isaac, Megan; Watts, Linda S.; Barnhouse, Rebecca

    2003-01-01

    Includes four teachers' recommendations of summer reading for other teachers. Details Anita Shreve's "The Last Time They Met"; Barbara Kingsolver's "Small Wonder"; Lynda Barry's "Cruddy"; and Ina Rilke's "Balzac and the Little Chinese Seamstress." (PM)

  2. Complex Disease Endotypes and Implications for GWAS and Exposomics***

    EPA Science Inventory

    Presentation Type: Symposia Symposium Title: Human Exposome Discovery and Disease Investigation Abstract Title: Complex Disease Endotypes and Implications for GWAS and Exposomics Authors: Stephen W. Edwards1, David M. Reif, Elaine Cohen Hubaf, ClarLynda Williams-DeVa...

  3. When the Least Restrictive Environment is Residential: Meeting the Needs of Our Son

    ERIC Educational Resources Information Center

    Morris, Djenne-Amal

    2013-01-01

    In this article, the author, a parent of Malik, a special needs child with CHARGE Syndrome, describes the difficulties she encountered with her local educational agency (LEA) in transitioning her son from the Perkins School for the Blind in Watertown, Massachusetts to the Eastern North Carolina School for the Deaf (ENCSD). At ENCSD, Malik now…

  4. 77 FR 50497 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ... FR 20623), EPA sought comments on this ICR pursuant to 5 CFR 1320.8(d). EPA received one comment..., DC 20503. FOR FURTHER INFORMATION CONTACT: Norma Abdul-Malik, Environmental Protection Agency, 1200... address: abdul-malik.norma@epa.gov . SUPPLEMENTARY INFORMATION: EPA has submitted the following ICR to...

  5. Nurse Burnout: Overcoming Stress in Nursing Waddill-Goad Suzanne Nurse Burnout: Overcoming Stress in Nursing 288pp Kindle edition £24.95 Sigma Theta Tau International Honor Society of Nursing 9781938835889 B01AMB993U [Formula: see text].

    PubMed

    2016-03-23

    This book is easy to read and is set out well, with summaries and objectives in each chapter. Despite my initial reservations about the book being targeted at American readers, it is still relevant to British nursing. PMID:27008138

  6. DSSTOX: NEW ON-LINE RESOURCE FOR PUBLISHING AND INTEGRATING STANDARDIZED STRUCTURE-INCLUSIVE TOXICITY DATABASES

    EPA Science Inventory

    DSSTox: New On-line Resource for Publishing Structure-Standardized Toxicity Databases

    Ann M Richard1, Jamie Burch2, ClarLynda Williams3
    1Nat. Health and Environ. Effects Res. Lb, US EP& Ret Triangle Park, NC 27711; 2EPA-NC
    Central Univ Student COOP, US EPA, lies. Tri...

  7. 77 FR 55496 - Notice of Temporary Closure of Public Lands in Eastern Lassen County, California, and Western...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-10

    ... Road, Horn Road, Garate Road, Ramhorn Road, Shinn Ranch Road, Stoney Road, Deep Cut Road, Smoke Creek... Campground and the Dodge Reservoir and Campground are also closed. Thomas Pogacnik, Deputy State Director... CONTACT: Lynda Roush, Acting Northern California District Manager, 707-825-2309; or BLM Eagle Lake...

  8. Families: An Expanding Role for Professional Counselors. Proceedings of the Conference (San Antonio, Texas, February 1-3, 1986).

    ERIC Educational Resources Information Center

    Cohen, George M.; And Others

    This document contains papers from a conference which targeted the needs and interests of counselors working with families. Individual papers in the book include: (1) "Economic, Social and Political Influences on Families" (Lynda Henley Walters); (2) "Family Structures and Stresses: A Counseling Perspective" (Edwin Herr); (3) "Cultural Diversity…

  9. Outliers, Cheese, and Rhizomes: Variations on a Theme of Limitation

    ERIC Educational Resources Information Center

    Stone, Lynda

    2011-01-01

    All research has limitations, for example, from paradigm, concept, theory, tradition, and discipline. In this article Lynda Stone describes three exemplars that are variations on limitation and are "extraordinary" in that they change what constitutes future research in each domain. Malcolm Gladwell's present day study of outliers makes a…

  10. Community Engagement in Local History: A Report on the Hemel at War Project

    ERIC Educational Resources Information Center

    Abbott, Lynda; Grayson, Richard S.

    2011-01-01

    This article, by Lynda Abbott and Richard Grayson, offers a fascinating example of collaboration between school and university, focused on the development of a community archive. The project--run as an extra-curricular activity--was originally inspired by a concern to preserve the personal stories of those whose lives were affected by the Second…

  11. People

    NASA Astrophysics Data System (ADS)

    2002-03-01

    Featuring relationships, personalities, interactions, environments and reputations involved in physics and education ON THE MAP (160) Greenhead College: getting great A-level results Kerry Parker PERSONALITY (161) Physics, sex and politics Lynda Williams, the Physics Chanteuse TEACHING ANECDOTES (163) Yuri Gagarin

  12. COMPUTATIONAL TOXICOLOGY ADVANCES: EMERGING CAPABILITIES FOR DATA EXPLORATION AND SAR MODEL DEVELOPMENT

    EPA Science Inventory

    Computational Toxicology Advances: Emerging capabilities for data exploration and SAR model development
    Ann M. Richard and ClarLynda R. Williams, National Health & Environmental Effects Research Laboratory, US EPA, Research Triangle Park, NC, USA; email: richard.ann@epa.gov

  13. feature - Office of Cancer Clinical Proteomics Research

    Cancer.gov

    "Cancer is a disease of the genome," noted Lynda Chin, M.D., professor of dermatology, Harvard Medical School and Dana-Farber Cancer Institute. "And understanding the impact of genomic changes in the proteome is critically important for converting genomic knowledge into something that a clinician can use on their patients."

  14. Video Games as a Context for Numeracy Development

    ERIC Educational Resources Information Center

    Thomas, Troy A.; Wiest, Lynda R.

    2013-01-01

    Troy Thomas and Lynda Wiest share an engaging lesson on statistics involving analysis of real-world data on the top ten video game sales in the United States during a one-week period. Three upper-primary classes completed the lesson, providing insight into the lesson's effectiveness. The lesson description includes attention to the manner in which…

  15. Supporting the Siblings of Young Children with Disabilities

    ERIC Educational Resources Information Center

    Dodd, Lynda Warren

    2004-01-01

    In this article, Lynda Warren Dodd, who is senior educational psychologist for early years and the Portage Service supervisor in Stockport LEA, discusses the development of a support group for the brothers and sisters of young children with a wide range of disabilities. The group has been running, as an annual event, for eight years and offers a…

  16. 77 FR 3789 - Call for Nominations for Resource Advisory Councils

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-25

    ... Office, BLM, 3948 Development Avenue, Boise, Idaho 83705, (208) 384-3393. Coeur d'Alene District RAC Suzanne Endsley, Coeur d'Alene District Office, BLM, 3815 Schreiber ] Way, Coeur d'Alene, Idaho...

  17. 78 FR 19290 - Call for Nominations for Advisory Committees

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-29

    ..., Idaho 83705, 208-384-3393. Coeur d'Alene District RAC Suzanne Endsley, Coeur d'Alene District Office, BLM, 3815 Schreiber Way, Coeur d'Alene, Idaho 83815, 208-769-5004. Idaho Falls District RAC...

  18. 77 FR 27177 - Notice of Funds Availability; Inviting Applications for the Quality Samples Program; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-09

    .... Suzanne E. Heinen, Administrator, Foreign Agricultural Service, and Vice President, Commodity Credit... for the Quality Samples Program; Correction AGENCY: Foreign Agricultural Service, U.S. Department of Agriculture. ACTION: Notice; correction. SUMMARY: The Foreign Agricultural Service published a document in...

  19. 77 FR 50086 - Marine Mammals; File No. 16109

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-20

    ... was published in the Federal Register (77 FR 33198) that a request for an amendment to Permit No... Permit No. 16109 has been issued to GeoMarine, Inc. (Responsible Party: Suzanne Bates), 2201 K...

  20. Drink Spiking a Problem on U.S. Campuses

    MedlinePlus

    ... simply an urban legend," said study leader Suzanne Swan, an associate professor in the department of psychology ... and this is coercive and controlling behavior," said Swan in a journal news release. About four out ...

  1. Single Working Moms Carry a Heart Burden

    MedlinePlus

    ... at Erasmus University Medical Center in Rotterdam, the Netherlands. Before this study, he said, "We did not ... social epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands; Suzanne Steinbaum, D.O., director, women's heart health, ...

  2. 75 FR 49886 - Trade Adjustment Assistance for Farmers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-16

    ... price of multi-species fish compared to the average of the three preceding marketing years. If a...: http://www.fas.usda.gov/itp/taa . Dated: August 3, 2010. Suzanne Hale, Acting Administrator,...

  3. ENVIRONMENTAL TOXICANTS AND DISRUPTED MAMMARY GLAND DEVELOPMENT: THE WINDOW OF SUSCEPTIBILITY

    EPA Science Inventory

    Environmental Toxicants and Altered Mammary Gland Development: The window of susceptibility. Suzanne E. Fenton, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711

    There are several enviro...

  4. ENVIRONMENTAL TOXICANTS AND ALTERED MAMMARY GLAND DEVELOPMENT: THE WINDOW OF SUSCEPTIBILITY

    EPA Science Inventory

    Environmental Toxicants and Altered Mammary Gland Development: The window of susceptibility. Suzanne E. Fenton, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711

    There are several environm...

  5. Bringing students together: The impact of the FOSTER Program for teachers

    NASA Technical Reports Server (NTRS)

    Keller, John; Williams, Suzanne

    1995-01-01

    This paper is a case study of how the Flight Opportunities for Teacher EnRichment (FOSTER) Project influenced the teaching, curriculum, and lives of two precollege teachers, John Keller and Suzanne Williams.

  6. Sowing the Seeds: Reproduction and Educational Reform in China. Essay Review [of "Power in Education: The Case of Miao University Students and Its Significance for American Culture" (Henry T. Trueba, Yali Zou); "Radicalism and Education Reform in 20th-Century China: The Search for an Ideal Development Model" (Suzanne Pepper); and "Teacher Education in the People's Republic of China" (Rhea A. Ashmore, Zhen Cao)].

    ERIC Educational Resources Information Center

    Liu, Judith; Kelly, Donald P.

    1998-01-01

    Three recent books that deal with China's continuing quest to create a workable educational system address the evolution of teacher education, the position of ethnic minority groups in higher education, and the historical social consequences of educational policies. Taken together, the works indicate the institutionalization of Western-style…

  7. KSC-05PD-0799

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. Lynda Weatherman, president and CEO of the Economic Development Commission of Floridas Space Coast, and Jim Kennedy, director of Kennedy Space Center, sign a three-year Space Act Agreement for economic development cooperation in support of existing and future missions of NASA at KSC. The agreement underscores business development strategies to ensure KSC and Brevard County continue to be competitive and develop space-related initiatives.

  8. KSC-05PD-0800

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. Lynda Weatherman, president and CEO of the Economic Development Commission of Floridas Space Coast, and Jim Kennedy, director of Kennedy Space Center, congratulate each other after signing a three-year Space Act Agreement for economic development cooperation in support of existing and future missions of NASA at KSC. The agreement underscores business development strategies to ensure KSC and Brevard County continue to be competitive and develop space-related initiatives.

  9. Higher Education and Women's Empowerment in Pakistan

    ERIC Educational Resources Information Center

    Malik, Samina; Courtney, Kathy

    2011-01-01

    This paper summarises the findings of a 2005 doctoral study by Malik which explored to what extent participation in higher education offers empowerment to women in Pakistan. A survey instrument was used to question female faculty members and female students from 10 public universities in Pakistan; 1290 students and 290 faculty members responded.…

  10. Alternatives to Greek-Letter Organizations Warrant a Second Look

    ERIC Educational Resources Information Center

    David, Marc C.

    2004-01-01

    Because of the discriminatory practices and lack of appeal of many predominantly White Greek-letter organizations, students of color sought the development of their own. Alpha Phi Alpha, Rho Psi, MALIK Sigma Psi, Lambda Theta Phi, and Alpha Pi Omega set the stage for later African American, Asian, African, Latino and American Indian Greek-letter…

  11. 75 FR 69160 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-10

    ... Richie James Drake Richman Eliot Marshall Richter Andrea Virginia Rigazzi Alain R. Ritter John D. Roden... Beattie Daniel Becker Kaja K. Bednarz Andrew James Beirnes Denise Bell William Anthony Bergandi Marco Lee... Machlin Rachel Shirley Maduro Jaime Eduardo Maggard James Douglas Magnoni Olivia Malik Akhtar...

  12. Techniques for Increasing Slavic Program Enrollments: A Collection of Success Stories.

    ERIC Educational Resources Information Center

    Jarvis, Donald K., Ed.

    This volume contains descriptions of successful Slavic language programs. The topics considered are: (1) community and institutional support; (2) programs for out-of-class practice; and (3) limited focus programs. The following articles are included: (1) "The University of Arizona Russian Program," by J. Malik, Jr.; (2) "Building from an…

  13. AN ADDITIVE EFFECT OF A MIXTURE OF AMMONIUM PERCHLORATE AND SODIUM CHLORATE ON PITUTARY-THYROID AXIS IN MALE F-344 RATS

    EPA Science Inventory

    An Additive Effect of a Mixture of Ammonium Perchlorate
    and Sodium Chlorate on Pitutary-Thyroid Axis in Male F-344 Rats

    Moazzam A. Khan 1,2,, 3Suzanne E. Fenton. 2Adam E. Swank, ZGeremy W. Knapp, 2Susan D.
    Hester, and 2Douglas C. Wolf. 1NRC, 2Environmental Carcinog...

  14. The NEA 2003 Almanac of Higher Education.

    ERIC Educational Resources Information Center

    National Education Association, Washington, DC.

    This 10th anniversary edition of the almanac includes: "Foreword" (Rachel Hendrickson); "Overview" (Harold S. Wechsler); "Faculty Salaries: 2001-2002" (Suzanne B. Clery and John B. Lee); "Diversity, Nonstandard Work, and Academic Employment in the 21st Century" (Henry Lee Allen); "The Federal Role in Higher Education" (Thomas R. Wolanin); "Higher…

  15. ASPESA Papers, Number 9 (November 1990) and Number 10 (June 1991).

    ERIC Educational Resources Information Center

    Hardie, John, Ed.

    1991-01-01

    This document consists of two consecutive issues of "ASPESA Papers", containing 5 and 6 papers, respectively, as follows: (1) "Human Realities and Technology in Distance Learning" (John G. Hedberg and Suzanne McNamara); (2) "A National Distance Education Admissions System," (Gavin Moodie); (3) "What's in a Name?" (Ian Forsyth); (4) "Distance…

  16. Female Focalizers and Masculine Ideals: Gender as Performance in Twilight and the Hunger Games

    ERIC Educational Resources Information Center

    Guanio-Uluru, Lykke

    2016-01-01

    Stephenie Meyer's "Twilight" series (2005-2008) and Suzanne Collins' "The Hunger Games" series (2008-2010) have been hugely successful and influential texts, both as best-selling literary works and as action movie franchises. (To avoid confusion, "Twilight" and "The Hunger Games" in this essay refer to the…

  17. 75 FR 8371 - Center for Scientific Review; Notice of Closed Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-24

    ... provisions set forth in sections 552b(c)(4) and 552b(c)(6), Title 5 U.S.C., as amended. The grant... Committee: Center for Scientific Review Special Emphasis Panel, RFA-OD-09-006: BIRCWH K12s. Date: March 17... Suites, 1111 30th Street, NW., Washington, DC 20007. Contact Person: Suzanne Ryan, PhD, Scientific...

  18. Competencies for Librarians. Proceedings from the 1985 Spring Meeting of the Nebraska Library Association: College and University Section (Omaha, Nebraska, April 26, 1985).

    ERIC Educational Resources Information Center

    Krzywkowski, Valerie I., Ed.

    Based on the conference theme, "Competencies for Librarians," papers presented at the 1985 meeting of the association include: (1) "Planning a Library-Based Public Access Microcomputer Facility" (Suzanne Kehm); (2) "Processing and Circulating Microcomputer Software in the Academic Library: A Sharing Session" (Jan Brumm and Carole Schmidt); (3)…

  19. Class on Fire: Using the Hunger Games Trilogy to Encourage Social Action

    ERIC Educational Resources Information Center

    Simmons, Amber M.

    2012-01-01

    This article explores ways to utilize students' interest in fantasy literature to support critical literacy. Focusing on Suzanne Collins's The Hunger Games series (2008, 2009, 2010), the author addresses how elements of the trilogy relate to violent acts in our world, helping student understand that violence and brutality toward children is not…

  20. Educating the Whole Child through Science: A Portrait of an Exemplary Primary Science Teacher

    ERIC Educational Resources Information Center

    Tytler, Russell; Clark, John Cripps; Darby, Linda

    2009-01-01

    This article describes the primary science practice of one teacher as a picture of exemplary professional practice. The teacher, Suzanne Peterson, was a colleague and friend. Her untimely death earlier this year was regarded by those who knew her as a tragic loss to education. As it happens, we have access to many sources of information about…

  1. A Review of Recent Developments in the Role of the SENCo in the UK

    ERIC Educational Resources Information Center

    Mackenzie, Suzanne

    2007-01-01

    In this discussion paper, Suzanne Mackenzie, senior lecturer with responsibility for the special educational needs BA and MA programmes at the University of East London, reviews previous research in order to identify changes in the role of the special educational needs co-ordinator (SENCo) in schools in the UK. She provides an overview of the…

  2. Correction to Dittmar, Halliwell, and Ive (2006)

    ERIC Educational Resources Information Center

    Dittmar, Helga; Halliwell, Emma; Ive, Suzanne

    2006-01-01

    Reports an error in "Does Barbie make girls want to be thin? The effect of experimental exposure to images of dolls on the body image of 5- to 8-year-old girls" by Helga Dittmar, Emma Halliwell and Suzanne Ive ("Developmental Psychology," 2006 Mar, Vol 42[2], 283-292). A substantive error occurs in the Body shape dissatisfaction section on page…

  3. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (83rd, Phoenix, Arizona, August 9-12, 2000). Radio-Television Journalism Division.

    ERIC Educational Resources Information Center

    Association for Education in Journalism and Mass Communication.

    The Radio-Television Journalism Division section of the proceedings contains the following six papers: "Local Television News and Viewer Empowerment: Why the Public's Main Source of News Falls Short" (Denise Barkis Richter); "For the Ear to Hear: Conversational Writing on the Network Television News Magazines" (C. A. Tuggle, Suzanne Huffman and…

  4. A NOVEL EFFECT OF DIOXIN: EXPOSURE DURING PREGNANCY SEVERELY IMPAIRS MAMMARY GLAND DIFFERENTIATION

    EPA Science Inventory

    A novel effect of dioxin: Exposure during pregnancy severely impairs mammary gland differentiation.
    Beth A. Vorderstrasse1, Suzanne E. Fenton2, Andrea A. Bohn3, Jennifer A. Cundiff1, and B. Paige Lawrence1,3,4 1Department of Pharmaceutical Sciences, Washington State Universi...

  5. 75 FR 69061 - Senior Executive Service; Performance Review Board

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-10

    ... Hale, Andrew M Hallman, Timothy J Handschy, Mark A Handwerker, Alan I Hannigan, James J Hardwick Jr, Raymond J Harms, Timothy C Harrell, Jeffrey P Harrington, Paul G Harris, Robert J Harvey, Stephen J Held... Avon Meeks, Timothy J Mellington, Stephen A Mellington, Suzanne P Miller, Wendy L Milliken, Joann...

  6. 76 FR 76158 - Agency Information Collection Activities; Proposed Collection; Comment Request; RCRA Expanded...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-06

    ... . FOR FURTHER INFORMATION CONTACT: Michael Pease, (5303P), Environmental Protection Agency, 1200...; email address: pease.michael@epa.gov . SUPPLEMENTARY INFORMATION: How can I access the docket and/or... Pease at (703) 308-0008 or pease.michael@epa.gov . Dated: November 22, 2011. Suzanne Rudzinski,...

  7. 78 FR 68479 - Notice of Intent To Seek Approval To Renew an Information Collection

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-14

    ... plans to request clearance of this collection. In accordance with the requirement of Section 3506(2)(A... requesting that OMB approve clearance of this collection with changes for no longer than three (3) years... collection, NSF Form 1700. Contact Suzanne Plimpton, the NSF Reports Clearance Officer, phone (703)...

  8. Shuffling the Deck To Ensure Fairness in Dealing: A Commentary on Some Issues of Equity and Mathematics Education from the Perspective of the QUASAR Project.

    ERIC Educational Resources Information Center

    Silver, Edward A.

    This paper is a reaction to a plenary address, "Fairness in Dealing: Diversity, Psychology, and Mathematics Education" by Suzanne Damarin (SE 057 179). The issues of intentionality, institutional and instructional practices, identity development, and assessment are addressed in regard to the Quantitative Understanding: Amplifying Student…

  9. The NEA 2000 Almanac of Higher Education.

    ERIC Educational Resources Information Center

    Wechsler, Harold, Ed.

    This report contains seven articles on current issues in higher education and a separate faculty salary report for 1998-1999. Articles on the status of the profession are: (1) "Faculty Salaries, 1998-99" (Suzanne B. Clery and John B. Lee); (2) "Innovative Approaches to Bargaining" (Gary Rhoades and Christine Maitland); (3) "Union Organizing and…

  10. Inclusive Education: A Casebook and Readings for Prospective and Practicing Teachers.

    ERIC Educational Resources Information Center

    Wade, Suzanne E., Ed.

    This book presents readings and teaching cases designed to prepare teachers for inclusive education. Part 1, "Readings," provides an overview of issues related to inclusive education and describes approaches for creating inclusive classrooms and schools, including: (1) "Creating Inclusive Classrooms: An Overview" (Suzanne E. Wade and Judy Zone);…

  11. The Evaluation Exchange. Volume 14, Numbers 1-2 Spring 2008

    ERIC Educational Resources Information Center

    Bouffard, Suzanne, Ed; Weiss, Abby; DeDeo, Carrie-Anne, Ed.

    2008-01-01

    This issue of "The Evaluation Exchange" spotlights one of the central components of complementary learning: family involvement. There are 28 articles herein: (1) "Thinking Big: A New Framework for Family Involvement Policy, Practice, and Research" (Suzanne Bouffard and Heather Weiss) reframes family involvement as part of a broader complementary…

  12. ROLES OF EPIDERMAL GROWTH FACTOR (EGF) AND TRANSFORMING GROWTH FACTOR-ALPHA (TGF-A) IN MEDIATION OF DIOXIN (TCDD)-INDUCED DELAYS IN DEVELOPMENT OF THE MOUSE MAMMARY GLAND

    EPA Science Inventory

    Roles of Epidermal Growth Factor (EGF) and Transforming Growth Factor-alpha (TGF-a) in Mediation of Dioxin (TCDD)-Induced Delays in Development of the Mouse Mammary Gland.
    Suzanne E. Fenton, Barbara Abbott, Lamont Bryant, and Angela Buckalew. U.S. EPA, NHEERL, Reproductive Tox...

  13. ENVIRONMENTAL FACTORS AFFECTING BREAST CANCER SUSCEPTIBILITY

    EPA Science Inventory

    Environmental Factors Affecting Breast Cancer Susceptibility
    Suzanne. E. Fenton
    US EPA, ORD, MD-67 NHEERL, Reproductive Toxicology Division, Research Triangle Park, NC 27711.

    Breast cancer is still the most common malignancy afflicting women in the Western world. Alt...

  14. Mapping Panem

    ERIC Educational Resources Information Center

    Painter, Judith

    2012-01-01

    This lesson plan is based on Suzanne Collins's book, "The Hunger Games." Katniss and Gale know about District 12 and the surrounding woods. Additionally, from television coverage, they know that there are twelve districts and the Capitol. District 13 used to exist until the rebellion. But where are these districts now that the geography of North…

  15. Wind Turbine Manufacturers in the United States: Locations and Local Impacts (Presentation)

    SciTech Connect

    Tegen, S.

    2010-05-26

    Suzanne Tegen's presentation about U.S. wind energy manufacturing (presented at WINDPOWER 2010 in Dallas) provides information about challenges to modeling renewables; wind energy's economic "ripple effect"; case studies about wind-related manufacturing in Colorado, Iowa, Ohio, and Indiana; manufacturing maps for the Great Lakes region, Arkansas, and the United States; sample job announcements; and U.S. Treasury Grant 1603 funding.

  16. Computer Technology Resources for Literacy Projects.

    ERIC Educational Resources Information Center

    Florida State Council on Aging, Tallahassee.

    This resource booklet was prepared to assist literacy projects and community adult education programs in determining the technology they need to serve more older persons. Section 1 contains the following reprinted articles: "The Human Touch in the Computer Age: Seniors Learn Computer Skills from Schoolkids" (Suzanne Kashuba); "Computer Instruction…

  17. Colorado TTT Estes Park Conference Report.

    ERIC Educational Resources Information Center

    Helburn, Suzanne W.; And Others

    This conference report is organized to follow the conference schedule and includes edited versions of three papers, as well as of the final plenary session. The paper by Suzanne Wiggins Helburn is titled "Trends and Issues in Teacher Education in Colorado" and summarizes the trends which were indicated by a survey of the state programs. Topics…

  18. 78 FR 38203 - Refunds and Exchanges

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-26

    ... of proposed rulemaking on March 14, 2013 (78 FR 16213), which included a 30 day comment period. After... Key, Shipping Products, karen.f.key@usps.gov , 202-268-2282; Suzanne Newman, Product Classification... Classification Service Center (see 608.8.0), who issues the final agency decision. Refunds for postage...

  19. Action Learning Issues.

    ERIC Educational Resources Information Center

    1998

    This document contains four papers from a symposium on adult learning issues and human resource development (HRD). "Creating a Systemic Framework for the Transfer of Learning from an Action Learning Experience" (Suzanne D. Butterfield, Kitty Gold, Verna J. Willis) discusses a study of the organizational elements that affect learning and transfer…

  20. Neoliberalism and Education Revisited

    ERIC Educational Resources Information Center

    Klees, Steven J.

    2008-01-01

    This article presents the author's response to four thoughtful reviews of his article. These reviews include: (1) Steve Heyneman and Kathryn Anderson's (2008) review: "A Quarter Century of Getting It Right in Education"; (2) Annie Vinokur's (2008) review; (3) Suzanne Bergeron's (2008) review; and (4) Jerrold Kachur's review and the extensive…

  1. The Games People Play: Information and Media Literacies in the Hunger Games Trilogy

    ERIC Educational Resources Information Center

    Latham, Don; Hollister, Jonathan M.

    2014-01-01

    Katniss Everdeen, the narrator and protagonist of Suzanne Collins' Hunger Games Trilogy, survives the grueling ordeal of forced participation in two games to the death through both physical prowess and mental agility. Both within and outside of the Games, she demonstrates information and media literacies. By becoming adept at interpreting and…

  2. Mathematics Achievement Gaps between Suburban Students and Their Rural and Urban Peers Increase over Time. Issue Brief No. 52

    ERIC Educational Resources Information Center

    Graham, Suzanne E.; Provost, Lauren E.

    2012-01-01

    In this brief, authors Suzanne Graham and Lauren Provost examine whether attending a school in a rural, urban, or suburban community is related to children's mathematics achievement in kindergarten, and whether increases in mathematics achievement between kindergarten and eighth grade differ for children in rural, urban, and suburban schools. They…

  3. 77 FR 25538 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-30

    ... LEWIS CHARLES ALBERT LEWIS MARY ELLEN LI ZHISHUN ] LIANG HSIAO-YUN TANG LIANG PHILLIP CHINCHIEN LIM FUNG... SYLVIE MADELEINE LOUISE MEYER NORMA LESLIE SOLDATI MILLER BRUCE LEE MILLER DAVID ALAN MILLET BRUNO MILLET... MARINA SEIDEL MICHAEL ANDREW MORITZ SELF DALTON DEAN SELF SUZANN CHRISTINA-HOPE SENGER PATRICIA...

  4. Vocabulary Instruction Goes "Old School"

    ERIC Educational Resources Information Center

    Kail, Suzanne R.

    2008-01-01

    High school teacher Suzanne R. Kail and her students uncover the relevance of learning Latin and Greek roots to enhance vocabulary and spelling. Kail reflects on her experience of combining what might be seen as an old-school practice of memorization with promoting higher level thinking skills and anticipates what she will revise for the next…

  5. 77 FR 25195 - Notice of Public Meeting, Coeur d'Alene District Resource Advisory Council Meeting; Idaho

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-27

    ... Bureau of Land Management Notice of Public Meeting, Coeur d'Alene District Resource Advisory Council... 1972 (FACA), the U.S. Department of the Interior, Bureau of Land Management (BLM) Coeur d'Alene... Road, Moscow, Idaho 83843. FOR FURTHER INFORMATION CONTACT: Suzanne Endsley, RAC Coordinator, BLM...

  6. 77 FR 52746 - Medical Countermeasures for a Burn Mass Casualty Incident

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-30

    ..., affiliation, address, email, and telephone number. Those without Internet access should contact Suzanne... participants will be sent technical system requirements after registration and will be sent connection access... Internet at http://www.fda.gov/MedicalDevices/NewsEvents/WorkshopsConferences/default.htm . (Select...

  7. "The Hunger Games" and Project-Based Learning

    ERIC Educational Resources Information Center

    Educational Horizons, 2013

    2013-01-01

    Mary Mobley teaches English and Michael Chambers teaches world history at Manor New Technology High School, a STEM school, in Manor, Texas. In this article, they talk about how they used "The Hunger Games" by Suzanne Collins to teach their students about forms of government between World War I and World War II, and "Edutopia"…

  8. DETECTION OF A CRITICAL PERIOD NECESSARY FOR ATRAZINE-INDUCED MAMMARY GLAND DELAYS IN RATS

    EPA Science Inventory

    Detection of a Critical Period Necessary for Atrazine-Induced Mammary Gland Delays in Rats.

    Jennifer L. Rayner1 and Suzanne E. Fenton2

    1 University of North Carolina at Chapel Hill, DESE, Chapel Hill, NC, and 2 Reproductive Toxicology Division, USEPA, NHEERL/ORD, R...

  9. LATE GESTATIONAL ATRAZINE EXPOSURE DECREASES MATERNAL BEHAVIOR IN LONG-EVANS RATS

    EPA Science Inventory

    Late Gestational Atrazine Exposure Alters Maternal Nursing Behavior in Rats

    Jennifer L. Rayner1 and Suzanne E. Fenton2

    1 University of North Carolina at Chapel Hill, DESE, Chapel Hill, NC, and 2 USEPA/ ORD/NHEERL/Reproductive Toxicology Division, RTP, NC.

    At...

  10. The NEA 2001 Almanac of Higher Education.

    ERIC Educational Resources Information Center

    Wechsler, Harold S., Ed.

    This report contains seven articles on current issues in higher education and a separate faculty salary report for 1999-2000. Articles on the "Status of the Profession" are: (1) "Faculty Salaries, 1999-2000" (Suzanne B. Clery and John B. Lee); (2) "Unions and Faculty Governance" (Christine Maitland and Gary Rhoades); (3) "Higher Education…

  11. The NEA 1998 Almanac of Higher Education.

    ERIC Educational Resources Information Center

    Wechsler, Harold, Ed.

    This annual report contains six essays on current issues in higher education and a faculty salary report for 1996-97. The essays include: (1) "Faculty Salaries, 1996-97" (Suzanne B. Clery and John B. Lee), which notes that faculty salaries increased 3.1 percent for the year although the gap between the best- and lowest-paid faculty widened as did…

  12. Girls on the Fringe: The Writing Lives of Two Adolescent Girls

    ERIC Educational Resources Information Center

    Pytash, Kristine E.

    2016-01-01

    Writing plays an important role in young adults' lives. It is tied to academic achievement and also provides young adults with a voice in social interactions, a way to express their feelings, and an opportunity to reflect on life events. This study explores the writing practices of 2 adolescent girls: Suzanne and Molly. On multiple occasions they…

  13. Toward an Aristotelian Conception of Good Listening

    ERIC Educational Resources Information Center

    Rice, Suzanne

    2011-01-01

    In this essay Suzanne Rice examines Aristotle's ideas about virtue, character, and education as elements in an Aristotelian conception of good listening. Rice begins by surveying of several different contexts in which listening typically occurs, using this information to introduce the argument that what should count as "good listening" must be…

  14. 77 FR 40647 - Toward Innovative Spectrum-Sharing Technologies: Wireless Spectrum Research and Development...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-10

    ... From the Federal Register Online via the Government Publishing Office NATIONAL SCIENCE FOUNDATION... stakeholders to advise us on this important step forward. Submitted by the National Science Foundation for the... (NITRD) on July 5, 2012. Suzanne H. Plimpton, Reports Clearance Officer, National Science...

  15. EXPOSURE PARAMETERS FOR DELAYED PUBERTY AND MAMMARY GLAND DEVELOPMENT IN LONG-EVANS RATS EXPOSED IN UTERO TO ATRAZINE

    EPA Science Inventory

    Exposure Parameters For Delayed Puberty And Mammary Gland Development In Long-Evans Rats Exposed In Utero To Atrazine

    Jennifer L. Rayner1 and Suzanne E. Fenton2

    1 UNC-Chapel Hill, DESE, Chapel Hill, NC, and 2 RTD, USEPA, NHEERL/ORD, RTP,NC

    Prenatal exposure ...

  16. EXPOSURE PARAMETERS NECESSARY FOR DELAYED PUBERTY AND MAMMARY GLAND DEVELOPMENT IN LONG-EVANS RATS EXPOSED IN UTERO TO ATRAZINE

    EPA Science Inventory

    Exposure Parameters Necessary For Delayed Puberty And Mammary Gland Development In Long-Evans Rats Exposed In Utero To Atrazine

    Jennifer L. Rayner1, 2, Carmen Wood2, and Suzanne E. Fenton2

    1 Department of Environmental Sciences and Engineering, School of Public Heal...

  17. President's Remarks. More about Animals in Research.

    ERIC Educational Resources Information Center

    Bird, Stephanie J.

    1990-01-01

    Discussed is the complexity of the issue concerning the use of live animals as subjects in laboratory tests. Included is a column written by Dr. Suzanne L. Epstein that discusses some of the advantages and disadvantages of use of tissue culture to replace laboratory animals. (CW)

  18. Visual Medium in the Service and Disservice of Education

    ERIC Educational Resources Information Center

    Wong, Wan-chi

    2001-01-01

    There are different ways of exploring and examining the visual medium in the service and disservice of education. A discursive form rather than a visual medium is chosen in this attempt. Utilizing the conceptualizations of Suzanne Langer, Christine Nystrom observed that American symbolic environments have undergone a massive shift from discursive…

  19. [Lawyers and Litigation in the Popular Culture.

    ERIC Educational Resources Information Center

    Ryan, John Paul, Ed.

    1991-01-01

    This issue of Focus on Law Studies contains the following articles: "T.V. Law: Image versus Reality" (Suzanne Frentz); "Teaching about Civil Rights in the 1990's" (Cynthia Hamilton); "A Social History of Black Lawyers in Popular Culture" (Ric Sheffield); "Will the Real Lawyers Please Stand Up!" (Susan Adair Dwyer-Shick); "Equality, 'Political…

  20. Changing Families, Changing Workplaces

    ERIC Educational Resources Information Center

    Bianchi, Suzanne M.

    2011-01-01

    American families and workplaces have both changed dramatically over the past half-century. Paid work by women has increased sharply, as has family instability. Education-related inequality in work hours and income has grown. These changes, says Suzanne Bianchi, pose differing work-life issues for parents at different points along the income…

  1. Local History and the Exemplary Award Winner: Letting Students Take Charge.

    ERIC Educational Resources Information Center

    Haskvitz, Alan

    1989-01-01

    Describes a history program at the Suzanne Middle School, Walnut, California, in which students create, design, and promote local history activities. Emphasizes the accomplishments of the program, including a rise in the school's state test scores from the twenty-second percentile to the ninety-fourth percentile. (RW)

  2. IDENTIFYING RECRUITMENT AND RETENTION ISSUES FOR THE NATIONAL CHILDREN'S STUDY

    EPA Science Inventory

    Recruitment and Retention Issues for the National Children's Study
    Danelle T Lobdell1, Suzanne Gilboa2, Pauline Mendola1 (1US EPA, NHEERL; 2UNC Chapel Hill)

    A better understanding of the most effective recruitment techniques and retention strategies for longitudinal, co...

  3. Funding Interventions for Students at Risk. School Finance Series.

    ERIC Educational Resources Information Center

    Chambers, George A.; And Others

    Issues surrounding funding programs and services for at-risk students are discussed. The introduction and Section I, "Issues Related to Financing Programs and Services for Students at Risk" (Suzanne L. Juday) identify some of the problems that must be addressed to provide adequate at-risk programs and services in an efficient and equitable manner.…

  4. Suing the Schools for Fraud: Issues and Legal Strategies. Transcript of a Conference: Fraud in the Schools.

    ERIC Educational Resources Information Center

    Syracuse Univ. Research Corp., NY. Educational Policy Research Center.

    On November 20, 1972, a complaint was filed by Suzanne Martinez of the Youth Law Center against the San Francisco Unified School District and others on behalf of an 18-year-old plaintiff, identified as Peter W. Doe. Peter Doe had graduated with average grades, had never encountered serious disciplinary problems, and had maintained a regular…

  5. Papers and Studies in Contrastive Linguistics, Volume Eight.

    ERIC Educational Resources Information Center

    Fisiak, Jacek, Ed.

    1978-01-01

    This issue of the journal includes these papers on contrastive linguistics: "The Impersonal Sentence in Russian and Romanian" (Suzanne Whalen); "Differential Identity Between Languages--A Study of Assertion and Interrogation in French and English" (William A. Bennett); "The Use of the Article in English and Hungarian: A Contrastive Analysis" (Eva…

  6. A Battle Reconsidered: Second Thoughts on Book Censorship and Conservative Parents

    ERIC Educational Resources Information Center

    Kauer, Suzanne M.

    2008-01-01

    Suzanne M. Kauer believes we must honor all voices in the discussion of what books students should read; she refuses to simplify the issue of censorship by dismissing the multifaceted concerns parents have for saying no to certain books. Kauer advocates doing more listening--asking parents questions to better understand their perspectives--and…

  7. 75 FR 61778 - Agency Information Collection Activities: Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ... in the Federal Register at 75 FR 47645, and no comments were received. NSF is forwarding the proposed... calling 703-292-7556. FOR FURTHER INFORMATION CONTACT: Suzanne H. Plimpton at (703) 292-7556 or send e-mail to splimpto@nsf.gov . Individuals who use a telecommunications device for the deaf (TDD) may...

  8. 76 FR 5841 - Agency Information Collection Activities: Comment Request

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-02

    ... comment; the first was published in the Federal Register at 75 FR 68829, and no substantial comments were... calling (703) 292-7556. FOR FURTHER INFORMATION CONTACT: Suzanne H. Plimpton at (703) 292-7556 or send e-mail to splimpto@nsf.gov . Individuals who use a telecommunications devise for the deaf (TDD) may...

  9. Language, Epistemology, and Cultural Identity: "Hopiqatsit Aw Unangvakiwyungwa" ("They Have Their Heart in the Hopi Way of Life")

    ERIC Educational Resources Information Center

    Nicholas, Sheilah E.

    2010-01-01

    Daniel Nettle and Suzanne Romaine in "Vanishing Voices: The Extinction of the World's Languages" state that indigenous peoples represent about 4 percent of the world's population but speak at least 60 percent of the world's languages. They point out the reality of an ominous linguistic crisis of global proportions--languages die and continue to…

  10. Alliances in "The Hunger Games"

    ERIC Educational Resources Information Center

    Painter, Judith

    2012-01-01

    This lesson plan is based on "The Hunger Games" by Suzanne Collins. Characters in "The Hunger Games" form alliances both inside and outside the arena. Katniss and Gale form alliances within District 12. Katniss, Peeta, and the other tributes form alliances for a variety of reasons during the Games. An alliance means that "someone's got your back"…

  11. Entering the Arena: The Figured Worlds Transition of Preservice Teachers

    ERIC Educational Resources Information Center

    Saunders, Jane M.; Ash, Gwynne Ellen

    2013-01-01

    The article describes a semester-long project that draws on Suzanne Collins' "The Hunger Games" as a resource and over-arching theme for preservice teachers taking a content area literacy course. We examine how preservice teachers learn to connect written texts to content area (disciplinary) literacy and consider ways to prepare…

  12. We're Smarter Together: Building Professional Social Networks in English Education

    ERIC Educational Resources Information Center

    Cercone, James

    2009-01-01

    The history between Cheektowaga Central and the University at Buffalo illustrates the benefits of forming long-term collaborative relationships between teacher education programs and local schools. In 1998, the author was approached by Suzanne Miller regarding the possibility of Meg Callahan, then a doctoral student at the University at Buffalo,…

  13. 75 FR 62759 - Trade Adjustment Assistance for Farmers

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-13

    ...- percent decline in at least one of the following factors: national average price, quantity of production..., because it showed a 4.2-percent increase in the average annual price for 2009, when compared to the...: October 5, 2010. Suzanne Hale, Administrator, Foreign Agricultural Service. BILLING CODE 3410-10-P...

  14. Close Encounters of the Best Kind: The Latest Sci-Fi

    ERIC Educational Resources Information Center

    Kunzel, Bonnie

    2008-01-01

    Not only is science fiction alive and well--it's flourishing. From the big screen (howdy, Wall-E) to the big books (like Suzanne Collins's The Hunger Games, which has attracted loads of prepublication praise), 2008 has been a great year for sci-fi. Publishers have released truckloads of new sci-fi titles this year, but what's particularly…

  15. Responsible Grammar Rebels: Using the Hunger Games Trilogy to Teach the Intentional Sentence Fragment

    ERIC Educational Resources Information Center

    Simmons, Amber M.

    2016-01-01

    Building off of students' interest in popular apocalyptic/dystopian literature, this article explores how passages from Suzanne Collins's "The Hunger Games" trilogy aided in teaching students how to successfully rebel against traditional grammar rules, looking at fragments as intentional stylistic choices. Employing the values of…

  16. Toward Disciplinary Literacy: Dilemmas and Challenges in Designing History Curriculum to Support Middle School Students

    ERIC Educational Resources Information Center

    Duhaylongsod, Leslie; Snow, Catherine E.; Selman, Robert L.; Donovan, M. Suzanne

    2015-01-01

    In this article, Leslie Duhaylongsod, Catherine E. Snow, Robert L. Selman, and M. Suzanne Donovan describe the principles behind the design of curricular units that offer disciplinary literacy support in the subject of history for middle school students who represent a wide range of reading levels, and for their teachers, whose own subject matter…

  17. Using Core Historical Thinking Concepts in an Elementary History Methods Course

    ERIC Educational Resources Information Center

    Martin, Daisy

    2012-01-01

    In an examination of how content knowledge influenced her initial third grade social studies teaching experiences, Suzanne Wilson found that it, among other things, helped her "to hear what students say" and in her students' comments were "often...the seeds of complex and sophisticated historical ideas." She also found content knowledge to be…

  18. INFLUENCE OF ENDOCRINE DISRUPTING COMPOUNDS (EDCS) ON MAMMARY GLAND DEVELOPMENT AND TUMOR SUSCEPTIBILITY

    EPA Science Inventory

    Influence of Endocrine Disrupting Compounds (EDCs) on Mammary Gland Development and Tumor Susceptibility.

    Suzanne E. Fenton1, and Jennifer Rayner1,2

    1 Reproductive Toxicology Division, NHEERL/ORD, U.S. EPA, Research Triangle Park, NC, and 2 Department of Environmen...

  19. 78 FR 10655 - Self-Regulatory Organizations; Financial Industry Regulatory Authority, Inc.; Order Approving a...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-14

    ..., 2012), 77 FR 77162 (``Notice''). \\4\\ See web comment from Suzanne H. Shatto, dated January 3, 2013... trading in the security, and would act to protect U.S. investors.\\12\\ \\10\\ See Notice, supra note 3, 77 FR... events can take time to be resolved. See Notice, supra note 3, 77 FR at 77164. III. Discussion...

  20. 76 FR 3884 - Environmental Impacts Statements; Notice of Availability

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-21

    ...: 03/01/2011, Contact: Suzanne Hill, 202-205-5821. Revision to FR Notice 01/14/2011. Correction to the...: David Drucker, 301-415-6223. EIS No. 20110013, Final EIS, NPS, VA, Cedar Creek and Belle Grove National... Period Ends: 02/22/ 2011, Contact: Peter Iris-Williams, 215-597-6479. EIS No. 20110014, Draft EIS,...

  1. 75 FR 3914 - Recordation of Trade Name “Sony Ericsson Mobile Communications AB”

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-25

    ..., 2010. FOR FURTHER INFORMATION CONTACT: Suzanne E. Kane, Attorney-Advisor, Intellectual Property Rights... ``Sony Ericsson Mobile Communications AB'' in the Federal Register (74 FR 58042). The notice advised that... requires. Dated: January 15, 2010. Charles R. Steuart, Chief, Intellectual Property Rights &...

  2. Between Mere Tolerance and Robust Respect: Mutuality as a Basis for Civic Education in Pluralist Democracies

    ERIC Educational Resources Information Center

    Rosenblith, Suzanne; Bindewald, Benjamin

    2014-01-01

    This essay by Suzanne Rosenblith and Benjamin Bindewald is motivated by the question of how do those who value civic liberalism give the religiously orthodox a reason to engage in pluralist democratic deliberations in a manner that does not allow intolerance to undermine the foundations of liberal democracy. Introducing the idea of tolerance as…

  3. PROLACTIN-INDUCED TYROSINE PHOSPHORYLATION, ACTIVATION AND RECEPTOR ASSOCIATION OF FOCAL ADHESION KINASE (FAK) IN MAMMARY EPITHELIAL CELLS

    EPA Science Inventory

    Prolactin-Induced Tyrosine Phosphorylation, Activation and Receptor
    Association of Focal Adhesion Kinase (FAK) in Mammary Epithelial Cells.
    Suzanne E. Fenton1 and Lewis G. Sheffield2. 1U.S. Environmental Protection
    Agency, MD-72, Research Triangle Park, NC 27711, and

  4. Lipoid Proteinosis.

    PubMed

    Mittal, Hitesh C; Yadav, Sunil; Malik, Sunita; Singh, Gurdarshan

    2016-01-01

    A case report of a 6-year-old male child who reported with recurrent oral and skin ulcerations since childhood and was diagnosed as lipoid proteinosis manifesting with generalized thickening, hardening, and scarring of the skin and hoarseness of voice; is presented here. How to cite this article: Mittal HC, Yadav S, Malik S, Singh G. Lipoid Proteinosis. Int J Clin Pediatr Dent 2016;9(2):149-151. PMID:27365938

  5. Learning an Efficient Texture Model by Supervised Nonlinear Dimensionality Reduction Methods

    NASA Astrophysics Data System (ADS)

    Barshan, Elnaz; Behravan, Mina; Azimifar, Zohreh

    This work investigates the problem of texture recognition under varying lighting and viewing conditions. One of the most successful approaches for handling this problem is to focus on textons, describing local properties of textures. Leung and Malik [1] introduced the framework of this approach which was followed by other researchers who tried to address its limitations such as high dimensionality of textons and feature histograms as well as poor classification of a single image under known conditions.

  6. Lipoid Proteinosis

    PubMed Central

    Yadav, Sunil; Malik, Sunita; Singh, Gurdarshan

    2016-01-01

    ABSTRACT A case report of a 6-year-old male child who reported with recurrent oral and skin ulcerations since childhood and was diagnosed as lipoid proteinosis manifesting with generalized thickening, hardening, and scarring of the skin and hoarseness of voice; is presented here. How to cite this article: Mittal HC, Yadav S, Malik S, Singh G. Lipoid Proteinosis. Int J Clin Pediatr Dent 2016;9(2):149-151. PMID:27365938

  7. Let me tell you about bedpans.

    PubMed

    Mason, V

    1997-01-01

    You see, it worked. This title grabbed your attention just like Suzanne Gordon said it would. Suzanne Gordon is a journalist, not a nurse, so she ought to know something about grabbing a reader's attention. As it happens, she also knows something about nursing. If you want to be convinced, read her widely praised new book Life Support--Three Nurses on the Front Lines (Little, Brown 1997). So how does it happen that she is able to write and speak with authority about nursing? Because nurses talked with her about what they do, how they do it, and why. And now she talks back to nurses. Tells us that our passion and anger are all that stand between us and the death of care giving. Challenging things like that. PMID:9369700

  8. Wind Power Siting: Public Acceptance and Land Use; NREL (National Renewable Energy Laboratory)

    SciTech Connect

    Tegen, Suzanne

    2015-06-17

    Suzanne Tegen presented this information as part of the June 17, 2015 WINDExchange webinar: Overcoming Wind Siting Challenges III: Public Acceptance and Land Use. This presentation provides an overview of current NREL research related to wind energy deployment considerations, the DOE Wind Vision as it relates to public acceptance and land use, why public acceptance of wind power matters, where the U.S. wind resource is best, and how those rich resource areas overlay with population centers.

  9. Traumaculture and Telepathetic Cyber Fiction

    NASA Astrophysics Data System (ADS)

    Drinkall, Jacquelene

    This paper explores the interactive CD-ROM No Other Symptoms: Time Travelling with Rosalind Brodsky, usingtelepathetic socio-psychological, psychoanalytic and narrative theories. The CD-ROMexists as a contemporary artwork and published interactive hardcover book authored by painter and new-media visual artist Suzanne Treister. The artwork incorporates Treister's paintings, writing, photoshop, animation, video and audio work with narrative structures taken from world history, the history of psychoanalysis, futurist science and science fiction, family history and biography.

  10. Maximizing the business value of information technology in home care and hospice.

    PubMed

    2012-08-01

    Health care technology provides the key to becoming the high performing efficient organization you want to be. But how do you sift through the many available solutions and determine which technology to acquire? Do you fully understand the best practices for choosing and using technology and measuring the value gained once your new solutions are in place? Get a map to the digital road from Suzanne Sblendorio, director of Healthcare Information Technology Consulting at Simione Healthcare Consultants. PMID:23074757

  11. KSC-05PD-0801

    NASA Technical Reports Server (NTRS)

    2005-01-01

    KENNEDY SPACE CENTER, FLA. Members of the Economic Development Commission (EDC) of Floridas Space Coast were on hand to witness the signing of a three-year agreement for economic development cooperation in support of existing and future missions of NASA at KSC. Lynda Weatherman (third from left), president and CEO of the EDC, and Jim Kennedy (center) , director of Kennedy Space Center, signed the Space Act Agreement. At far right is Lisa Malone, director of External Relations and Business Development at KSC. Standing with them are members of the NASA External Relations directorate who helped facilitate the Space Act Agreement are, from left, James Ball, Kim Agee, John Hudiberg, David Pierce, Jessica Livingston and Trudy McCarthy.

  12. A spectral histogram model for texton modeling and texture discrimination.

    PubMed

    Liu, Xiuwen; Wang, DeLiang

    2002-10-01

    We suggest a spectral histogram, defined as the marginal distribution of filter responses, as a quantitative definition for a texton pattern. By matching spectral histograms, an arbitrary image can be transformed to an image with similar textons to the observed. We use the chi(2)-statistic to measure the difference between two spectral histograms, which leads to a texture discrimination model. The performance of the model well matches psychophysical results on a systematic set of texture discrimination data and it exhibits the nonlinearity and asymmetry phenomena in human texture discrimination. A quantitative comparison with the Malik-Perona model is given, and a number of issues regarding the model are discussed. PMID:12446034

  13. Aiming for elimination of dog-mediated human rabies cases by 2030.

    PubMed

    2016-01-23

    A conference organised by the World Health Organization (WHO) and the World Organisation for Animal Health (OIE), in collaboration with the Food and Agriculture Organization of the United Nations (FAO) and the Global Alliance for Rabies Control (GARC), in Geneva on December 10 to 11, 2015, saw delegates from nearly 100 countries meet to discuss the WHO's goal of eliminating dog-mediated human rabies by 2030 and work on a new framework to focus efforts towards achieving this goal. Suzanne Jarvis reports. PMID:26795858

  14. Treatment-resistant depression and physician-assisted death.

    PubMed

    MIller, Franklin G

    2015-11-01

    In a recent article, Udo Schuklenk and Suzanne van de Vathorst argued in favour of a legal option of physician-assisted death for patients with 'treatment-resistant' depression. In this commentary, I contend that their argument neglects the important consideration of the professional integrity of physicians. In light of this consideration, coupled with uncertainty about whether additional interventions with the patient can improve quality of life and restore the will to live, it is not appropriate to include patients with 'treatment-resistant' depression within a legal option of physician-assisted death. PMID:26401050

  15. Sealed room solution or combating HCAIs.

    PubMed

    Callander, Suzanne

    2016-02-01

    Suzanne Callander reports on the North Tees and Hartlepool NHS Foundation Trust's installation of the UK's first Steris VaproQuip fully enclosed decontamination room system, which has enabled considerably quicker, simultaneous decontamination of equipment such as drips stands, computers, and keyboards within a single space. The system's purchase is just one element of a committed and considerably broader Trust drive to reduce healthcare-associated infections (HCAls), and particularly to reduce cases of C. difficile. This has also seen implemented a wide range of other cleaning and decontamination activities--from use of mobile HPV units to systematic ward decants and touch point cleaning. PMID:27017659

  16. Ivins examines Destiny with the processing team in the SSPF

    NASA Technical Reports Server (NTRS)

    1999-01-01

    In the Space Station Processing Facility, Marsha Ivins, a mission specialist on the STS-98 crew, inspects the U.S. Laboratory with members of the laboratory's processing team. The laboratory module, considered the centerpiece of the International Space Station (ISS), has been named 'Destiny' in honor of its prominent role in the world's largest science and technology effort. It is planned for launch aboard Space Shuttle Endeavour on the sixth ISS construction flight currently targeted for March 2000. From left to right are Ivins, Jerry Hopkins, Danny Whittington, Melissa Orozco, and Suzanne Fase.

  17. Ivins examines Destiny with the processing team in the SSPF

    NASA Technical Reports Server (NTRS)

    1999-01-01

    In the Space Station Processing Facility, Marsha Ivins, a mission specialist on the STS-98 crew, inspects the U.S. Laboratory with members of the laboratory's processing team. The laboratory module, considered the centerpiece of the International Space Station (ISS), has been named 'Destiny' in honor of its prominent role in the world's largest science and technology effort. It is planned for launch aboard Space Shuttle Endeavour on the sixth ISS construction flight currently targeted for March 2000. From left to right are Ivins, Danny Whittington (face not visible), Melissa Orozco, Jerry Hopkins, and Suzanne Fase.

  18. Ivins examines Destiny with the processing team in the SSPF

    NASA Technical Reports Server (NTRS)

    1999-01-01

    In the Space Station Processing Facility, Marsha Ivins, a mission specialist on the STS-98 crew, inspects the U.S. Laboratory with members of the laboratory's processing team. The laboratory module, considered the centerpiece of the International Space Station (ISS), has been named 'Destiny' in honor of its prominent role in the world's largest science and technology effort. It is planned for launch aboard Space Shuttle Endeavour on the sixth ISS construction flight currently targeted for March 2000. From left to right are Ivins, Jerry Hopkins, Danny Whittington, Melissa Orozco, Vicki Reese and Suzanne Fase.

  19. Ivins examines Destiny with the processing team in the SSPF

    NASA Technical Reports Server (NTRS)

    1999-01-01

    In the Space Station Processing Facility, Marsha Ivins (left), a mission specialist on the STS-98 crew, discusses the U.S. Laboratory with members of the laboratory's processing team, (left to right) James Thews, Suzanne Fase, and Danny Whittington. The laboratory module, considered the centerpiece of the International Space Station (ISS), has been named 'Destiny' in honor of its prominent role in the world's largest science and technology effort. It is planned for launch aboard Space Shuttle Endeavour on the sixth ISS construction flight currently targeted for March 2000.

  20. Richardson-Lucy deconvolution for two-photon fluorescence images via non-linear diffusion equation pre-filtering

    NASA Astrophysics Data System (ADS)

    Zhang, Hongmin; Zhang, Zhitao; Luo, Qingming; Zeng, Shaoqun

    2007-02-01

    Two-photon fluorescence microscopy is a powerful technique to obtain the stacks of neuronal individual or population morphologies deep inside brain tissue in vivo. However, the stacks often suffer from increasing noises with depth because of light scattering of specimen and optical distortion of microscopic system. Therefore, deconvolution becomes a more useful and a crucial approach to restore the original details of neuronal structure in fluorescence images. Since Richardson-Lucy deconvolution algorithm is appropriate for Poisson process of microscopy but sensitive to noise, we propose a scheme that it pre-filters noise via Perona-Malik nonlinear anisotropic diffusion before performing regularized Richardson-Lucy deconvolution algorithm. In contrast to other restoration approaches, the preliminary denoising of Perona-Malik diffusion model provides a better trade-off between noise reduction and edge preservation, and helps to following regularized Richardson-Lucy deconvolution procedure. Experimental results have shown that proposed scheme is effective and robust for restoring noisy two-photon fluorescence images.

  1. Improving Surface Geostrophic Current from a GOCE-Derived Mean Dynamic Topography Using Edge-Enhancing Diffusion Filtering

    NASA Astrophysics Data System (ADS)

    Sánchez-Reales, J. M.; Andersen, O. B.; Vigo, M. I.

    2016-03-01

    With increased geoid resolution provided by the gravity and steady-state ocean circulation explorer (GOCE) mission, the ocean's mean dynamic topography (MDT) can be now estimated with an accuracy not available prior to using geodetic methods. However, an altimetric-derived MDT still needs filtering in order to remove short wavelength noise unless integrated methods are used in which the three quantities are determined simultaneously using appropriate covariance functions. We studied nonlinear anisotropic diffusive filtering applied to the oceańs MDT and a new approach based on edge-enhancing diffusion (EED) filtering is presented. EED filters enable controlling the direction and magnitude of the filtering, with subsequent enhancement of computations of the associated surface geostrophic currents (SGCs). Applying this method to a smooth MDT and to a noisy MDT, both for a region in the Northwestern Pacific Ocean, we found that EED filtering provides similar estimation of the current velocities in both cases, whereas a non-linear isotropic filter (the Perona and Malik filter) returns results influenced by local residual noise when a difficult case is tested. We found that EED filtering preserves all the advantages that the Perona and Malik filter have over the standard linear isotropic Gaussian filters. Moreover, EED is shown to be more stable and less influenced by outliers. This suggests that the EED filtering strategy would be preferred given its capabilities in controlling/preserving the SGCs.

  2. Generation of circumferential velocity contours associated with pulsed point suction on a rotating disk

    NASA Technical Reports Server (NTRS)

    Selby, Gregory V.

    1989-01-01

    Numerous experimental studies were conducted on the steady, three-dimensional boundary layer over a disk rotating at constant angular speed in an otherwise undisturbed fluid. The subject flow geometry is of interest because it provides a relatively simple way to study the cross-flow instability phenomenon which occurs in three-dimensional boundary layers, as on swept wings. This flow instability results in the formation of a stationary spiral vortex flow field over the disk, as shown by Wilkinson and Malik. Using a hot-wire probe, the spatial wave pattern of stationary vortices, which filled the entire circumference of the disk was mapped. The subject flow instability caused transition-to-turbulent flow as the periphery of the disk was approached. The effect on receptivity and transition of discrete disturbance modes, such as three-dimensional toughness elements and acoustic excitation was investigated. The present study (an extension of the work of Wilkinson and Malik) is focused on the effect of pulsed point suction on flow instability and transition, and consequently, on the classical stationary vortical flow pattern.

  3. Nonlinear diffusion filtering influenced by mean curvature

    NASA Astrophysics Data System (ADS)

    Kollár, Michal; Mikula, Karol; Čunderlík, Róbert

    2016-04-01

    The presentation introduces a new nonlinear diffusion filtering method on closed surfaces such as a sphere, ellipsoid or the Earth's surface. Our new model extends the regularized surface Perona-Malik model by including a local extrema detector based on a mean curvature of processed data. The model is thus represented by a nonlinear diffusion equation which filters noise while preserves main edges, local extrema and details important for a correct interpretation of data. We define a surface finite-volume method to approximate numerically the nonlinear parabolic partial differential equation on a closed surface. The closed surface is approximated by a polyhedral surface created by planar triangles representing subdivision of an initial icosahedron grid and we use a piece-wise linear approximation of a solution in space and the backward Euler time discretization. Numerical experiments present nonlinear diffusion filtering of artificial data and real measurements, namely the GOCE satellite observations. They aim to point out a main advantage of the new nonlinear model which, on the contrary of Perona-Malik model, preserves local extremal values of filtered data.

  4. Vessel enhancing diffusion: a scale space representation of vessel structures.

    PubMed

    Manniesing, Rashindra; Viergever, Max A; Niessen, Wiro J

    2006-12-01

    A method is proposed to enhance vascular structures within the framework of scale space theory. We combine a smooth vessel filter which is based on a geometrical analysis of the Hessian's eigensystem, with a non-linear anisotropic diffusion scheme. The amount and orientation of diffusion depend on the local vessel likeliness. Vessel enhancing diffusion (VED) is applied to patient and phantom data and compared to linear, regularized Perona-Malik, edge and coherence enhancing diffusion. The method performs better than most of the existing techniques in visualizing vessels with varying radii and in enhancing vessel appearance. A diameter study on phantom data shows that VED least affects the accuracy of diameter measurements. It is shown that using VED as a preprocessing step improves level set based segmentation of the cerebral vasculature, in particular segmentation of the smaller vessels of the vasculature. PMID:16876462

  5. On linear instability of a flared cone at Ma 6

    NASA Astrophysics Data System (ADS)

    Chen, Xi; Zhu, Yiding; Lee, Cunbiao

    2015-11-01

    LST calculations are performed on a flared cone over Mach 6 flow. The mean flow is efficiently obtained by first calculating the inviscid flow with FLUENT to get the flow information at the edge of the boundary layer, and then solving the nonsimilar boundary layer equations with spectral collocation method. The LST solver is based on spectral collocation method (global solver) and Malik's fourth-order compact finite-difference method (local solver). The profiles and frequency band of the second mode instability from LST are in nice agreement with experimental results obtaining by PIV and PCB. Three kinds of instabilities, i.e., steady and unsteady Gortler instability, first mode instability and second mode instability have been identified by a new criteria. The effect of the bulk viscosity on these instabilities is studied. At last, the inviscid linear stability analysis is performed to better understand the curvature effects on the stability.

  6. Semiconductor structures for repeated velocity overshoot

    NASA Astrophysics Data System (ADS)

    Cooper, J. A., Jr.; Capasso, F.; Thornber, K. K.

    1982-12-01

    The conditions required for obtaining repeated velocity overshoot in semiconductors are discussed. Two classes of structures that provide these conditions are considered. The structures are seen as holding promise for achieving average drift velocities well in excess of the maximum steady-state velocity over distances ranging from submicron to tens of microns. In structures of the first class, the stairstep in potential is achieved by using a graded bandgap that is similar to the avalanche photodetector described by Williams et al. (1982), where the composition is graded from GaAs to Al(0.2)Ga(0.8)As. The second class of structures uses alternating planar doped charge sheets, as described by Malik et al. (1980).

  7. The mode of host–parasite interaction shapes coevolutionary dynamics and the fate of host cooperation

    PubMed Central

    Quigley, Benjamin J. Z.; García López, Diana; Buckling, Angus; McKane, Alan J.; Brown, Sam P.

    2012-01-01

    Antagonistic coevolution between hosts and parasites can have a major impact on host population structures, and hence on the evolution of social traits. Using stochastic modelling techniques in the context of bacteria–virus interactions, we investigate the impact of coevolution across a continuum of host–parasite genetic specificity (specifically, where genotypes have the same infectivity/resistance ranges (matching alleles, MA) to highly variable ranges (gene-for-gene, GFG)) on population genetic structure, and on the social behaviour of the host. We find that host cooperation is more likely to be maintained towards the MA end of the continuum, as the more frequent bottlenecks associated with an MA-like interaction can prevent defector invasion, and can even allow migrant cooperators to invade populations of defectors. PMID:22740644

  8. A new jumping spider of the genus Stenaelurillus Simon, 1886 from India (Araneae: Salticidae: Aelurillina).

    PubMed

    Caleb, John T D; Mathai, Manu Thomas

    2016-01-01

    The genus Stenaelurillus Simon, 1886 is known from 35 species worldwide, including 27 species from Africa and eight from Asia (four species known from India, one from Iran, one from China, one from Tibet and one from Vietnam) (World Spider Catalog 2016). The four species known from India are S. albus Sebastian et al., 2015, S. jagannathae Das, Malik & Vidhel, 2015, S. lesserti Reimoser, 1934 and S. sarojinae Caleb & Mathai, 2014 (Prószyński 2015; World Spider Catalog 2016). The present paper contains description of Stenaelurillus metallicus sp. nov., discovered from scrub jungle remnants of tropical dry evergreen forests, a unique habitat found in Madras Christian College campus, Chennai, Tamil Nadu, India. PMID:27394630

  9. Contributions from Particles in Europe (PiE) 2010, Villefranche-sur-Mer, France: an introduction

    NASA Astrophysics Data System (ADS)

    Mikkelsen, Ole A.; Chami, Malik; Doxaran, David

    2012-04-01

    This special issue of Geo-Marine Letters presents selected contributions from the international conference Particles in Europe (PiE) 2010 organized by Sequoia Scientific, Inc., and the Laboratoire d'Océanographie de Villefranche (LOV) on 15-17 November 2010 in Villefranche-sur-Mer, France, and guest-edited by Ole Mikkelsen, Malik Chami and David Doxaran. PiE was initiated in 2008, in order to promote and further our understanding of the importance of suspended particulate matter (SPM) for a very wide range of processes in the aquatic environment—from optics and acoustics, over sediment transport, to the global carbon balance. The papers in this special issue are in particular concerned with the interaction between SPM and water optical properties, as well as how to use optical proxy measurements to understand SPM processes. The next PiE conference is scheduled for 17-19 October 2012 in Barcelona, Spain.

  10. Pathogenesis of influenza: virus-host interactions.

    PubMed

    Godlee, Alexandra; Almond, Mark H; Dong, Tao

    2011-08-01

    Since their inception in March 1972, Keystone Symposia on Molecular and Cellular Biology have brought together scientists from across the globe to discuss key biological topics. Now in its 40th year, it is a completely independent, nonprofit organization devoted solely to providing outstanding scientific conferences in all areas of the biological and biomedical sciences. Towards the end of May 2011, over 200 virologists and immunologists came to Hong Kong, an appropriate setting given the emergence of H5N1, to discuss influenza virus and host interactions. The meeting, expertly organized by Siamon Gordon (University of Oxford, Oxofrd, UK), Malik Peiris (University of Hong Kong, Hong Kong, China) and Kanta Subbarao (NIAID, NIH, MD, USA), took place in the aftermath of the first pandemic in 40 years and provided great insight into both pandemic H1N1 and H5N1. This article focuses on some of the recurring themes that were discussed during the week. PMID:21819324

  11. The Changing Landscape of Lung Cancer Research and Treatment

    Cancer.gov

    Along with the Lung Cancer Social Media (#LCSM) community, the National Cancer Institute will be co-hosting a lively and interactive Google Hangout on Air about the changing landscape of lung cancer research and treatment. During the chat, viewers will have the opportunity to pose questions to a panel of lung cancer experts including NCI's Dr. Shakun Malik, the head of thoracic oncology therapeutics, Roy S. Herbst, MD, PhD, Chief of Medical Oncology, Yale Cancer Center and Smilow Cancer Hospital at Yale-New Haven and David Tom Cooke MD FACS, Head, Section of General Thoracic Surgery University of California, Davis. You can also learn more and follow along on the #LCSM Chat page. The chat will be moderated by lung cancer advocate and #LCSM co-founder, Janet Freeman-Daily. To ask questions of our experts, simply use the #LCSM hashtag during the chat.

  12. Hotspots on Io During the Ganymede 2 Encounter

    NASA Technical Reports Server (NTRS)

    1996-01-01

    The Near Infrared Mapping Spectrometer (NIMS) on the Galileo spacecraft imaged Io at high spectral resolution at a range of 439,000 km (275,000 miles) during the G2 encounter on 6 September 1996. This image shows, on the right, Io as seen by NIMS, centered on 150 W longitude. The image on the left shows the same view point from Voyager data (from the encounters in 1979 and 1980). The NIMS image can be compared to the NIMS hotspot image from the G1 orbit (June 1996) to monitor changes on Io. The most dramatic feature of the G2 image is the hotspot at Malik Patera. Preliminary analysis of the data yields a temperature of at least 1000 K (727 C) for this hotspot, an increase of more than 300 K from the G1 encounter. In the overlap area of the G1 and G2 images all the hotspots seen during the G1 encounter are also seen in the G2 image. Other hotspots were seen, including one at the Pele plume origin site. This image is at the 4 micron band to best view the Malik hotspot. Most of the other hotspots are best seen at longer wavelengths. NIMS is continuing to observe Io to monitor volcanic activity throughout the Galileo mission.

    The Jet Propulsion Laboratory, Pasadena, CA manages the mission for NASA's Office of Space Science, Washington, DC.

    This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://galileo.jpl.nasa.gov.

  13. Disseminating research.

    PubMed

    Baillie, Lesley

    2015-07-01

    THE THEME of this edition of Nurse Researcher, 'disseminating research', is pertinent to researchers across the career spectrum and tackles two important issues: open access publishing and originality in PhD research. In the first paper, Suzanne Fredericks examines and contrasts two models of open access publishing, revealing some notable advantages of 'green' open access, achieved through repositories, as opposed to the more well-known 'gold' open access offered by journals ( Fredericks 2015 ). In the second paper, Paul Gill and Gina Dolan discuss originality in PhD studies, exploring the nature of the concept and how doctoral students can demonstrate originality, which is an essential consideration in their research dissemination activities as well as their thesis preparation ( Gill and Dolan 2015 ). PMID:26168806

  14. Seventeenth Annual Interdisciplinary Cancer Research Workshop.

    PubMed

    Párkányi, C; Politzer, P

    1995-06-01

    The Seventeenth Annual Interdisciplinary Cancer Research Workshop was held at the University of New Orleans on March 4, 1994. It was again sponsored by the Cancer Association of Greater New Orleans, a United Way Agency. As all the previous workshops in this highly successful series, it was organized by Peter Politzer (University of New Orleans), with the assistance of Anita H. Buckel (University of New Orleans) and James R. Jeter (Tulane University School of Medicine, New Orleans). The three invited speakers were Robert J. Coffey (Vanderbilt University, Nashville, TN), Suzanne A. W. Fuqua (University of Texas Health Science Center, San Antonio, TX), and Frank M. Torti (Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC). A one-hour-discussion period in the afternoon presented ample opportunity for an exchange of ideas and research findings among the speakers and the workshop participants. James R. Jeter served as the moderator of this lively discussion session. PMID:8536220

  15. Obituary: Preston F. Gott, 1919-2002

    NASA Astrophysics Data System (ADS)

    Myles, Charles Wesley

    2003-12-01

    Preston F. Gott, Professor Emeritus of Physics and former Director of the Observatories at Texas Tech University, died 13 January 2002 after a bout with Cancer. Mr. Gott was born 21 November 1919 in Waxahachie (Ellis County) Texas. He received his Bachelor of Science and Master of Arts degrees from the University of Texas at Austin. His first wife, Edna Maynard Gott, passed away in 1986; their two children are Eugene Willard Gott and Edith Suzanne Gott. After his retirement from Texas Tech University in 1989, he married Orene Whitcomb Peddicord, M.D. on 14 May 1991 and they lived in Odessa, Texas. Preston joined the Texas Tech University (TTU) faculty in 1948 and taught physics and astronomy there for 41 years, before retiring in 1989. He was responsible for starting astronomy teaching within the Physics department. He also developed, and taught for many years, a very popular, hands-on photography course in that department. It is due to Preston's persistence and determination that TTU has two astronomy observatories devoted to teaching. Because of his efforts, the on-campus observatory, Igor, was donated to TTU by White Sands Proving Grounds, New Mexico. He is also primarily responsible for obtaining the land, equipment and construction funds for an off campus observatory. In 1991, the TTU Board of Regents named the latter facility the Preston F. Gott Skyview Observatory. He also developed a private Mountainside Observatory in Fort Davis, Texas. Until recently, Preston was listed as a Senior Scientist at NASA's Jet Propulsion Laboratory in Pasadena, CA where he worked several summers on the moon and mars lander projects. In the 1950s and 1960s, he worked several summers at the White Sands Proving Grounds in New Mexico. In that period, he was also a consultant and frequent Visiting Scientist at the Aberdeen Proving Ground in Maryland. Preston was a very generous donor to the Department of Physics and the Texas Tech University. He endowed the Gott Gold Tooth

  16. Lie symmetry properties of nonlinear reaction-diffusion equations with gradient-dependent diffusivity

    NASA Astrophysics Data System (ADS)

    Cherniha, Roman; King, John R.; Kovalenko, Sergii

    2016-07-01

    Complete descriptions of the Lie symmetries of a class of nonlinear reaction-diffusion equations with gradient-dependent diffusivity in one and two space dimensions are obtained. A surprisingly rich set of Lie symmetry algebras depending on the form of diffusivity and source (sink) in the equations is derived. It is established that there exists a subclass in 1-D space admitting an infinite-dimensional Lie algebra of invariance so that it is linearisable. A special power-law diffusivity with a fixed exponent, which leads to wider Lie invariance of the equations in question in 2-D space, is also derived. However, it is shown that the diffusion equation without a source term (which often arises in applications and is sometimes called the Perona-Malik equation) possesses no rich variety of Lie symmetries depending on the form of gradient-dependent diffusivity. The results of the Lie symmetry classification for the reduction to lower dimensionality, and a search for exact solutions of the nonlinear 2-D equation with power-law diffusivity, also are included.

  17. Abnormal Image Detection in Endoscopy Videos Using a Filter Bank and Local Binary Patterns

    PubMed Central

    Nawarathna, Ruwan; Oh, JungHwan; Muthukudage, Jayantha; Tavanapong, Wallapak; Wong, Johnny; de Groen, Piet C.; Tang, Shou Jiang

    2014-01-01

    Finding mucosal abnormalities (e.g., erythema, blood, ulcer, erosion, and polyp) is one of the most essential tasks during endoscopy video review. Since these abnormalities typically appear in a small number of frames (around 5% of the total frame number), automated detection of frames with an abnormality can save physician’s time significantly. In this paper, we propose a new multi-texture analysis method that effectively discerns images showing mucosal abnormalities from the ones without any abnormality since most abnormalities in endoscopy images have textures that are clearly distinguishable from normal textures using an advanced image texture analysis method. The method uses a “texton histogram” of an image block as features. The histogram captures the distribution of different “textons” representing various textures in an endoscopy image. The textons are representative response vectors of an application of a combination of Leung and Malik (LM) filter bank (i.e., a set of image filters) and a set of Local Binary Patterns on the image. Our experimental results indicate that the proposed method achieves 92% recall and 91.8% specificity on wireless capsule endoscopy (WCE) images and 91% recall and 90.8% specificity on colonoscopy images. PMID:25132723

  18. Synthesis and crystal structures of RE7Zn(21+x)Si(2-x) [RE = Ce, Pr, and Nd; 0.09 (1) < x < 0.95 (1)].

    PubMed

    Hoos, James; Suen, Nian-Tzu; Bobev, Svilen

    2014-10-01

    The focus of this paper is on the synthesis and crystal structures of three Zn-rich compounds with the general formula RE7Zn(21+x)Si(2-x), where RE = Ce [x = 0.95 (1); heptacerium docosazinc silicon], Pr [x = 0.09 (1); heptapraseodymium henicosazinc disilicon], and Nd [x = 0.53 (1); heptaneodymium docosazinc silicon]. The compounds were obtained by high-temperature reactions, using the respective elements as starting materials. The structures were determined by single-crystal X-ray diffraction. The title compounds crystalize in the orthorhombic space group Pbam (No. 55, Pearson symbol oP60) and are isostructural with about a dozen RE7Zn(21+x)Tt(2-x) (RE = La-Nd; Tt = Ge, Sn, and Pb) compounds previously reported by our group. The results from the present refinements confirm the previously published data on RE7Zn(21+x)Si(2-x) (RE = La and Ce; x ≃ 1.45) [Malik et al. (2013). Intermetallics, 36, 118-126]. Additionally, magnetic susceptibility measurements on the corresponding bulk samples show Curie-Weiss paramagnetic behavior from 5 to 300 K, consistent with RE(3+) ground states and local-moment magnetism due to the core 4f electrons. PMID:25279593

  19. Quantitative evaluation of noise reduction and vesselness filters for liver vessel segmentation on abdominal CTA images

    NASA Astrophysics Data System (ADS)

    Luu, Ha Manh; Klink, Camiel; Moelker, Adriaan; Niessen, Wiro; van Walsum, Theo

    2015-05-01

    Liver vessel segmentation in CTA images is a challenging task, especially in the case of noisy images. This paper investigates whether pre-filtering improves liver vessel segmentation in 3D CTA images. We introduce a quantitative evaluation of several well-known filters based on a proposed liver vessel segmentation method on CTA images. We compare the effect of different diffusion techniques i.e. Regularized Perona-Malik, Hybrid Diffusion with Continuous Switch and Vessel Enhancing Diffusion as well as the vesselness approaches proposed by Sato, Frangi and Erdt. Liver vessel segmentation of the pre-processed images is performed using a histogram-based region grown with local maxima as seed points. Quantitative measurements (sensitivity, specificity and accuracy) are determined based on manual landmarks inside and outside the vessels, followed by T-tests for statistic comparisons on 51 clinical CTA images. The evaluation demonstrates that all the filters make liver vessel segmentation have a significantly higher accuracy than without using a filter (p  <  0.05) Hybrid Diffusion with Continuous Switch achieves the best performance. Compared to the diffusion filters, vesselness filters have a greater sensitivity but less specificity. In addition, the proposed liver vessel segmentation method with pre-filtering is shown to perform robustly on a clinical dataset having a low contrast-to-noise of up to 3 (dB). The results indicate that the pre-filtering step significantly improves liver vessel segmentation on 3D CTA images.

  20. Analysis of adaptive forward-backward diffusion flows with applications in image processing

    NASA Astrophysics Data System (ADS)

    Surya Prasath, V. B.; Urbano, José Miguel; Vorotnikov, Dmitry

    2015-10-01

    The nonlinear diffusion model introduced by Perona and Malik (1990 IEEE Trans. Pattern Anal. Mach. Intell. 12 629-39) is well suited to preserve salient edges while restoring noisy images. This model overcomes well-known edge smearing effects of the heat equation by using a gradient dependent diffusion function. Despite providing better denoizing results, the analysis of the PM scheme is difficult due to the forward-backward nature of the diffusion flow. We study a related adaptive forward-backward diffusion equation which uses a mollified inverse gradient term engrafted in the diffusion term of a general nonlinear parabolic equation. We prove a series of existence, uniqueness and regularity results for viscosity, weak and dissipative solutions for such forward-backward diffusion flows. In particular, we introduce a novel functional framework for wellposedness of flows of total variation type. A set of synthetic and real image processing examples are used to illustrate the properties and advantages of the proposed adaptive forward-backward diffusion flows.

  1. A Distance-Weighted Graph-Cut Method for the Segmentation of Laser Point Clouds

    NASA Astrophysics Data System (ADS)

    Dutta, A.; Engels, J.; Hahn, M.

    2014-08-01

    Normalized Cut according to (Shi and Malik 2000) is a well-established divisive image segmentation method. Here we use Normalized Cut for the segmentation of laser point clouds in urban areas. In particular we propose an edge weight measure which takes local plane parameters, RGB values and eigenvalues of the covariance matrices of the local point distribution into account. Due to its target function, Normalized Cut favours cuts with "small cut lines/surfaces", which appears to be a drawback for our application. We therefore modify the target function, weighting the similarity measures with distant-depending weights. We call the induced minimization problem "Distance-weighted Cut" (DWCut). The new target function leads to a slightly more complicated generalized eigenvalue problem than in case of the Normalized Cut; on the other hand, the new target function is easier to interpret and avoids the just-mentioned drawback. DWCut can be beneficially combined with an aggregation in order to reduce the computational effort and to avoid shortcomings due to insufficient plane parameters. Finally we present examples for the successful application of the Distance-weighted Cut principle. The method was implemented as a plugin into the free and open source geographic information system SAGA; for preprocessing steps the proprietary SAGA-based LiDAR software LIS was applied.

  2. Partial differential equations and fractal analysis to plant leaf identification

    NASA Astrophysics Data System (ADS)

    Brandoli Machado, Bruno; Casanova, Dalcimar; Nunes Gonçalves, Wesley; Martinez Bruno, Odemir

    2013-02-01

    Texture is an important visual attribute used to plant leaf identification. Although there are many methods of texture analysis, some of them specifically for interpreting leaf images is still a challenging task because of the huge pattern variation found in nature. In this paper, we investigate the leaf texture modeling based on the partial differential equations and fractal dimension theory. Here, we are first interested in decomposing the original texture image into two components f = u + v, such that u represents a cartoon component, while v represents the oscillatory component. We demonstrate how this procedure enhance the texture component on images. Our modeling uses the non-linear partial differential equation (PDE) of Perona-Malik. Based on the enhanced texture component, we estimated the fractal dimension by the Bouligand-Minkowski method due to its precision in quantifying structural properties of images. The feature vectors are then used as inputs to our classification system, based on linear discriminant analysis. We validate our approach on a benchmark with 8000 leaf samples. Experimental results indicate that the proposed approach improves average classification rates in comparison with traditional methods. The results suggest that the proposed approach can be a feasible step for plant leaf identification, as well as different real-world applications.

  3. Fluctuation of similarity to detect transitions between distinct dynamical regimes in short time series

    NASA Astrophysics Data System (ADS)

    Malik, Nishant; Marwan, Norbert; Zou, Yong; Mucha, Peter J.; Kurths, Jürgen

    2014-06-01

    A method to identify distinct dynamical regimes and transitions between those regimes in a short univariate time series was recently introduced [N. Malik et al., Europhys. Lett. 97, 40009 (2012), 10.1209/0295-5075/97/40009], employing the computation of fluctuations in a measure of nonlinear similarity based on local recurrence properties. In this work, we describe the details of the analytical relationships between this newly introduced measure and the well-known concepts of attractor dimensions and Lyapunov exponents. We show that the new measure has linear dependence on the effective dimension of the attractor and it measures the variations in the sum of the Lyapunov spectrum. To illustrate the practical usefulness of the method, we identify various types of dynamical transitions in different nonlinear models. We present testbed examples for the new method's robustness against noise and missing values in the time series. We also use this method to analyze time series of social dynamics, specifically an analysis of the US crime record time series from 1975 to 1993. Using this method, we find that dynamical complexity in robberies was influenced by the unemployment rate until the late 1980s. We have also observed a dynamical transition in homicide and robbery rates in the late 1980s and early 1990s, leading to increase in the dynamical complexity of these rates.

  4. A novel spatially adaptive guide-filter total variation (SAGFTV) regularization for image restoration

    NASA Astrophysics Data System (ADS)

    Fang, Hao; Li, Qian; Huang, Zhenghua

    2015-12-01

    Denoising algorithms based on gradient dependent energy functionals, such as Perona-Malik, total variation and adaptive total variation denoising, modify images towards piecewise constant functions. Although edge sharpness and location is well preserved, important information, encoded in image features like textures or certain details, is often compromised in the process of denoising. In this paper, We propose a novel Spatially Adaptive Guide-Filtering Total Variation (SAGFTV) regularization with image restoration algorithm for denoising images. The guide-filter is extended to the variational formulations of imaging problem, and the spatially adaptive operator can easily distinguish flat areas from texture areas. Our simulating experiments show the improvement of peak signal noise ratio (PSNR), root mean square error (RMSE) and structure similarity increment measurement (SSIM) over other prior algorithms. The results of both simulating and practical experiments are more appealing visually. This type of processing can be used for a variety of tasks in PDE-based image processing and computer vision, and is stable and meaningful from a mathematical viewpoint.

  5. A scale-based forward-and-backward diffusion process for adaptive image enhancement and denoising

    NASA Astrophysics Data System (ADS)

    Wang, Yi; Niu, Ruiqing; Zhang, Liangpei; Wu, Ke; Sahli, Hichem

    2011-12-01

    This work presents a scale-based forward-and-backward diffusion (SFABD) scheme. The main idea of this scheme is to perform local adaptive diffusion using local scale information. To this end, we propose a diffusivity function based on the Minimum Reliable Scale (MRS) of Elder and Zucker (IEEE Trans. Pattern Anal. Mach. Intell. 20(7), 699-716, 1998) to detect the details of local structures. The magnitude of the diffusion coefficient at each pixel is determined by taking into account the local property of the image through the scales. A scale-based variable weight is incorporated into the diffusivity function for balancing the forward and backward diffusion. Furthermore, as numerical scheme, we propose a modification of the Perona-Malik scheme (IEEE Trans. Pattern Anal. Mach. Intell. 12(7), 629-639, 1990) by incorporating edge orientations. The article describes the main principles of our method and illustrates image enhancement results on a set of standard images as well as simulated medical images, together with qualitative and quantitative comparisons with a variety of anisotropic diffusion schemes.

  6. PDE-based Non-Linear Diffusion Techniques for Denoising Scientific and Industrial Images: An Empirical Study

    SciTech Connect

    Weeratunga, S K; Kamath, C

    2001-12-20

    Removing noise from data is often the first step in data analysis. Denoising techniques should not only reduce the noise, but do so without blurring or changing the location of the edges. Many approaches have been proposed to accomplish this; in this paper, they focus on one such approach, namely the use of non-linear diffusion operators. This approach has been studied extensively from a theoretical viewpoint ever since the 1987 work of Perona and Malik showed that non-linear filters outperformed the more traditional linear Canny edge detector. They complement this theoretical work by investigating the performance of several isotropic diffusion operators on test images from scientific domains. They explore the effects of various parameters such as the choice of diffusivity function, explicit and implicit methods for the discretization of the PDE, and approaches for the spatial discretization of the non-linear operator etc. They also compare these schemes with simple spatial filters and the more complex wavelet-based shrinkage techniques. The empirical results show that, with an appropriate choice of parameters, diffusion-based schemes can be as effective as competitive techniques.

  7. Abnormal Image Detection in Endoscopy Videos Using a Filter Bank and Local Binary Patterns.

    PubMed

    Nawarathna, Ruwan; Oh, JungHwan; Muthukudage, Jayantha; Tavanapong, Wallapak; Wong, Johnny; de Groen, Piet C; Tang, Shou Jiang

    2014-11-20

    Finding mucosal abnormalities (e.g., erythema, blood, ulcer, erosion, and polyp) is one of the most essential tasks during endoscopy video review. Since these abnormalities typically appear in a small number of frames (around 5% of the total frame number), automated detection of frames with an abnormality can save physician's time significantly. In this paper, we propose a new multi-texture analysis method that effectively discerns images showing mucosal abnormalities from the ones without any abnormality since most abnormalities in endoscopy images have textures that are clearly distinguishable from normal textures using an advanced image texture analysis method. The method uses a "texton histogram" of an image block as features. The histogram captures the distribution of different "textons" representing various textures in an endoscopy image. The textons are representative response vectors of an application of a combination of Leung and Malik (LM) filter bank (i.e., a set of image filters) and a set of Local Binary Patterns on the image. Our experimental results indicate that the proposed method achieves 92% recall and 91.8% specificity on wireless capsule endoscopy (WCE) images and 91% recall and 90.8% specificity on colonoscopy images. PMID:25132723

  8. Global pattern analysis and classification of dermoscopic images using textons

    NASA Astrophysics Data System (ADS)

    Sadeghi, Maryam; Lee, Tim K.; McLean, David; Lui, Harvey; Atkins, M. Stella

    2012-02-01

    Detecting and classifying global dermoscopic patterns are crucial steps for detecting melanocytic lesions from non-melanocytic ones. An important stage of melanoma diagnosis uses pattern analysis methods such as 7-point check list, Menzies method etc. In this paper, we present a novel approach to investigate texture analysis and classification of 5 classes of global lesion patterns (reticular, globular, cobblestone, homogeneous, and parallel pattern) in dermoscopic images. Our statistical approach models the texture by the joint probability distribution of filter responses using a comprehensive set of the state of the art filter banks. This distribution is represented by the frequency histogram of filter response cluster centers called textons. We have also examined other two methods: Joint Distribution of Intensities (JDI) and Convolutional Restricted Boltzmann Machine (CRBM) to learn the pattern specific features to be used for textons. The classification performance is compared over the Leung and Malik filters (LM), Root Filter Set (RFS), Maximum Response Filters (MR8), Schmid, Laws and our proposed filter set as well as CRBM and JDI. We analyzed 375 images of the 5 classes of the patterns. Our experiments show that the joint distribution of color (JDC) in the L*a*b* color space outperforms the other color spaces with a correct classification rate of 86.8%.

  9. Breast density characterization using texton distributions.

    PubMed

    Petroudi, Styliani; Brady, Michael

    2011-01-01

    Breast density has been shown to be one of the most significant risks for developing breast cancer, with women with dense breasts at four to six times higher risk. The Breast Imaging Reporting and Data System (BI-RADS) has a four class classification scheme that describes the different breast densities. However, there is great inter and intra observer variability among clinicians in reporting a mammogram's density class. This work presents a novel texture classification method and its application for the development of a completely automated breast density classification system. The new method represents the mammogram using textons, which can be thought of as the building blocks of texture under the operational definition of Leung and Malik as clustered filter responses. The new proposed method characterizes the mammographic appearance of the different density patterns by evaluating the texton spatial dependence matrix (TDSM) in the breast region's corresponding texton map. The TSDM is a texture model that captures both statistical and structural texture characteristics. The normalized TSDM matrices are evaluated for mammograms from the different density classes and corresponding texture models are established. Classification is achieved using a chi-square distance measure. The fully automated TSDM breast density classification method is quantitatively evaluated on mammograms from all density classes from the Oxford Mammogram Database. The incorporation of texton spatial dependencies allows for classification accuracy reaching over 82%. The breast density classification accuracy is better using texton TSDM compared to simple texton histograms. PMID:22255462

  10. To Evaluate the Relationship between Mandibular Canine Calcification Stages and Skeletal Age

    PubMed Central

    Rana, Vivek; Rehani, Usha

    2012-01-01

    ABSTRACT Aim: The purpose of this study was to assess skeletal age and establish relationship between mandibular canine calcification and skeletal age. Materials and methods: The study included 147 females aged 10 to 13 years. The subjects were divided into three groups: Group I—comprising of 10 to 11 years old female; Group II—comprising of 11 to 12 years old female; Group III—12 to 13 years female. OPG and hand and wrist radiographs of left side for each subject were taken with prior consent of their parents. The calcification status of canine was evaluated from orthopantomograms according to scores given in Demirjian’s method. The stages of ossification of various carpal bones were evaluated using radiographic atlas of Greulich-Pyle and skeletal age was calculated. Results: Data collected was statistically analyzed. Conclusion: The results drawn from this study showed that a strong correlation was observed for canine calcification stage F for 10 to 11 years and for stage G in 11 to 12 years and 12 to 13 years respectively. How to cite this article: Malik P, Rana V, Rehani U. To Evaluate the Relationship between Mandibular Canine Calcification Stages and Skeletal Age. Int J Clin Pediatr Dent 2012;5(1): 14-19. PMID:25206128

  11. Evaluation of various speckle reduction filters on medical ultrasound images.

    PubMed

    Wu, Shibin; Zhu, Qingsong; Xie, Yaoqin

    2013-01-01

    At present, ultrasound is one of the essential tools for noninvasive medical diagnosis. However, speckle noise is inherent in medical ultrasound images and it is the cause for decreased resolution and contrast-to-noise ratio. Low image quality is an obstacle for effective feature extraction, recognition, analysis, and edge detection; it also affects image interpretation by doctor and the accuracy of computer-assisted diagnostic techniques. Thus, speckle reduction is significant and critical step in pre-processing of ultrasound images. Many speckle reduction techniques have been studied by researchers, but to date there is no comprehensive method that takes all the constraints into consideration. In this paper we discuss seven filters, namely Lee, Frost, Median, Speckle Reduction Anisotropic Diffusion (SRAD), Perona-Malik's Anisotropic Diffusion (PMAD) filter, Speckle Reduction Bilateral Filter (SRBF) and Speckle Reduction filter based on soft thresholding in the Wavelet transform. A comparative study of these filters has been made in terms of preserving the features and edges as well as effectiveness of de-noising.We computed five established evaluation metrics in order to determine which despeckling algorithm is most effective and optimal for real-time implementation. In addition, the experimental results have been demonstrated by filtered images and statistical data table. PMID:24109896

  12. Fluctuation of similarity to detect transitions between distinct dynamical regimes in short time series.

    PubMed

    Malik, Nishant; Marwan, Norbert; Zou, Yong; Mucha, Peter J; Kurths, Jürgen

    2014-06-01

    A method to identify distinct dynamical regimes and transitions between those regimes in a short univariate time series was recently introduced [N. Malik et al., Europhys. Lett. 97, 40009 (2012)], employing the computation of fluctuations in a measure of nonlinear similarity based on local recurrence properties. In this work, we describe the details of the analytical relationships between this newly introduced measure and the well-known concepts of attractor dimensions and Lyapunov exponents. We show that the new measure has linear dependence on the effective dimension of the attractor and it measures the variations in the sum of the Lyapunov spectrum. To illustrate the practical usefulness of the method, we identify various types of dynamical transitions in different nonlinear models. We present testbed examples for the new method's robustness against noise and missing values in the time series. We also use this method to analyze time series of social dynamics, specifically an analysis of the US crime record time series from 1975 to 1993. Using this method, we find that dynamical complexity in robberies was influenced by the unemployment rate until the late 1980s. We have also observed a dynamical transition in homicide and robbery rates in the late 1980s and early 1990s, leading to increase in the dynamical complexity of these rates. PMID:25019852

  13. A New Adaptive Diffusive Function for Magnetic Resonance Imaging Denoising Based on Pixel Similarity

    PubMed Central

    Heydari, Mostafa; Karami, Mohammad Reza

    2015-01-01

    Although there are many methods for image denoising, but partial differential equation (PDE) based denoising attracted much attention in the field of medical image processing such as magnetic resonance imaging (MRI). The main advantage of PDE-based denoising approach is laid in its ability to smooth image in a nonlinear way, which effectively removes the noise, as well as preserving edge through anisotropic diffusion controlled by the diffusive function. This function was first introduced by Perona and Malik (P-M) in their model. They proposed two functions that are most frequently used in PDE-based methods. Since these functions consider only the gradient information of a diffused pixel, they cannot remove noise in noisy images with low signal-to-noise (SNR). In this paper we propose a modified diffusive function with fractional power that is based on pixel similarity to improve P-M model for low SNR. We also will show that our proposed function will stabilize the P-M method. As experimental results show, our proposed function that is modified version of P-M function effectively improves the SNR and preserves edges more than P-M functions in low SNR. PMID:26955563

  14. International Working Group on MDS cytogenetics: October 2007 meeting report.

    PubMed

    Slovak, Marilyn L; Dewald, Gordon W

    2008-09-01

    The inaugural meeting of the International Working Group on MDS cytogenetics convened 22-23 October 2007 in Chicago, IL. Under the sponsorship of the Myelodysplastic Syndromes Foundation, the group was organized to address the substantial need for worldwide standardized cytogenetic testing for MDS in clinical practice and research. Eighteen cytogeneticists from 10 countries attended the first working group meeting. Representatives from France and Austria were unable to attend the Chicago meeting. Marilyn L. Slovak, PhD (City of Hope, USA) served as Working Group Chair and Gordon Dewald, PhD (Mayo Clinic, USA), served as Working Group Advisor and Co-Chair. Other members in attendance included: Mette Andersen, Rigshospitalet, Denmark; Lynda Campbell, St. Vincent's Hospital Melbourne, Australia; Athena Cherry, Stanford University, USA; Kathy Chun, North York General Hospital, Canada; Mike Griffiths, West Midlands Regional Genetics Lab, UK; Detlef Haase, Georg-August-Universität, Germany; Claudia Haferlach, MLL Münchner Leukämielabor GmbH, Germany; Anne Hagemeijer, University of Leuven, Belgium; Barbara Hildebrandt, Institut für Humangenetik & Anthropologie Dupsilonsseldorf, Germany; Douglas Horsman, BC Cancer Agency, Canada; M. Anwar Iqbal, University of Rochester, USA; Suresh Jhanwar, Memorial Sloan-Kettering Cancer Center, USA; Bertil Johansson, University Hospital, Sweden; Michelle LeBeau, University of Chicago, USA; Kazuma Ohyashiki, Tokyo Medical University, Japan; Francesc Solé, Hospital del Mar, Spain. The focus of the working group was to establish the natural history and clinical significance of cytogenetic anomalies associated with the myelodysplastic syndromes (MDS), and to incorporate cytogenetic testing into the development of new treatments to cure MDS. Three specific goals were discussed in an effort to rapidly improve the care of patients with MDS. The first goal was how to educate physicians on the appropriate use of cost effective cytogenetic

  15. Judge says ADA covers content of insurance products.

    PubMed

    1998-05-01

    A Federal judge in Chicago ruled that the Americans with Disabilities Act (ADA) applies to the content of insurance policies, and says that Mutual of Omaha broke the law by artificially capping AIDS-related medical benefits. Federal courts have been divided on the issue. U.S. District Court Judge Suzanne Conlon ruled against the insurance company in a case with two defendants, John Doe and [name removed]. Both Doe and [name removed] have health insurance policies with Mutual; Doe's benefits are capped at $100,000 and [name removed]'s policy is capped at $25,000. Both are nearing the policy limit with the cost of combination antiviral drugs. Doe and [name removed] charge that the caps violate the ADA and the Illinois Insurance Code because they target a specific disability without regard to sound actuarial practices. Mutual of Omaha contends that capping benefits for AIDS is no different from providing lesser coverage for mental conditions, a situation approved by the courts. Mutual also argues that the ADA regulates access to services, but not the substance of the services. It seems unlikely that Mutual can financially justify having two different dollar limits for the caps. The case is scheduled for September. Other cases supporting the view that insurance products fall under the ADA are listed. PMID:11365315

  16. Mars Observer Orbit Insertion Briefing

    NASA Technical Reports Server (NTRS)

    1993-01-01

    For the first part of this briefing, see NONP-NASA-VT-2000081556. Marvin Traxler continues his discussion on signal tracking from the Mars Observer. Julie Webster, Lead Engineer, Telecommunications Subsystem, is introduced. She explains how signals coming back from Mars are detected. Dr. Pasquale Esposito talks about flyby orbits and capture orbits. He says that frequencies coming from the spacecraft can determine if the spacecraft has flown by Mars, or if a capture orbit has occurred. Charles Whetsel, System Engineer Spacecraft Team, presents a computer program. He shows where the signal will appear on the computer from the Spacecraft. Suzanne Dodd presents orbit insertion geometry. Dr. Arden Albee, Project Scientist Mars Observer Project, Cal Tech tech, says that Mars is studied to get more data to confirm their hypotheses derived from previous Mars Missions such as the Viking Mars Program and the Mariner Program. Dr. Albee also describes instrumentation on the Mars Observer such as the Ultra Stable Oscillator, Mars Orbiter Laser Altimeter, and Magnetometer. The camera on the spacecraft is similar to a fax machine because it scans one line at a time as the spacecraft orbits Mars. Dr. Michael Malin, Principle Investigator Mars Observer Camera, Malin Space Science Systems, Inc., describe this process.

  17. SEQCHIP: a powerful method to integrate sequence and genotype data for the detection of rare variant associations

    PubMed Central

    Liu, Dajiang J.; Leal, Suzanne M.

    2012-01-01

    Motivation: Next-generation sequencing greatly increases the capacity to detect rare-variant complex-trait associations. However, it is still expensive to sequence a large number of samples and therefore often small datasets are used. Given cost constraints, a potentially more powerful two-step strategy is to sequence a subset of the sample to discover variants, and genotype the identified variants in the remaining sample. If only cases are sequenced, directly combining sequence and genotype data will lead to inflated type-I errors in rare-variant association analysis. Although several methods have been developed to correct for the bias, they are either underpowered or theoretically invalid. We proposed a new method SEQCHIP to integrate genotype and sequence data, which can be used with most existing rare-variant tests. Results: It is demonstrated using both simulated and real datasets that the SEQCHIP method has controlled type-I errors, and is substantially more powerful than all other currently available methods. Availability: SEQCHIP is implemented in an R-Package and is available at http://linkage.rockefeller.edu/suzanne/seqchip/Seqchip.htm Contacts: dajiang@umich.edu or sleal@bcm.edu Supplementary information: Supplementary data are available at Bioinformatics online. PMID:22556370

  18. Integrated research training program of excellence in radiochemistry

    SciTech Connect

    Lapi, Suzanne

    2015-09-18

    The overall goal of this “Integrated Research Training Program of Excellence in Radiochemistry” is to provide a rich and deep research experience in state-of-the-art radiochemistry and in the fundamentals of radioisotopic labeling and tracer methodology to develop researchers who are capable of meeting the challenges of designing and preparing radiotracers of broad applicability for monitoring and imaging diverse biological systems and environmental processes. This program was based in the Departments of Radiology and Radiation Oncology at Washington University Medical School and the Department of Chemistry at the University of Illinois at Urbana Champaign, and it was initially directed by Professor Michael J. Welch as Principal Investigator. After his passing in 2012, the program was led by Professor Suzanne E. Lapi. Programmatic content and participant progress was overseen by an Internal Advisory Committee of senior investigators consisting of the PIs, Professor Mach from the Department of Radiology at Washington University and Professor John A. Katzenellenbogen of the Department of Chemistry at the University of Illinois. A small External Advisory Committee to give overall program guidance was also constituted of experts in radiolabeled compounds and in their applications in environmental and plant science.

  19. Mars Observer Lecture: Mars Orbit Insertion

    NASA Technical Reports Server (NTRS)

    Dodd, Suzanne R. (Personal Name)

    1993-01-01

    The Mars Observer mission spacecraft was primarily designed for exploring Mars and the Martian environment. The Mars Observer was launched on September 25, 1992. The spacecraft was lost in the vicinity of Mars on August 21, 1993 when the spacecraft began its maneuvering sequence for Martian orbital insertion. This videotape shows a lecture by Suzanne R. Dodd, the Mission Planning Team Chief for the Mars Observer Project. Ms Dodd begins with a brief overview of the mission and the timeline from the launch to orbital insertion. Ms Dodd then reviews slides showing the trajectory of the spacecraft on its trip to Mars. Slides of the spacecraft being constructed are also shown. She then discusses the Mars orbit insertion and the events that will occur to move the spacecraft from the capture orbit into a mapping orbit. During the trip to Mars, scientists at JPL had devised a new strategy, called Power In that would allow for an earlier insertion into the mapping orbit. The talk summarizes this strategy, showing on a slide the planned transition orbits. There are shots of the Martian moon, Phobos, taken from the Viking spacecraft, as Ms Dodd explains that the trajectory will allow the orbiter to make new observations of that moon. She also explains the required steps to prepare for mapping after the spacecraft has achieved the mapping orbit around Mars. The lecture ends with a picture of Mars from the Observer on its approach to the planet.

  20. UPR/Mayaguez High Energy Physics

    SciTech Connect

    Mendez, Hector

    2014-10-31

    Puerto Rico-Rio Piedras (Carlos Malca). The students H. Moreno and C. Malca has been directly supervised by Dr. Mendez and S. Santiesteban supervised by Dr. Ramirez. During the last 13 years, our group have graduated 23 MS students on experimental High Energy Physics data analysis and applied hardware techniques. Most of the students have been supported by DOE grants, included this grant. Since 2001, Dr. Mendez have directly supervised eleven students, Dr. Ramirez three students and the former PI (Dr. Lopez) nine students. These theses work are fully documented in the group web page (http://charma.uprm.edu). The High Energy Physics group at Mayaguez is small and presently consists of three Physics faculty members, the Senior Investigators Dr. Hector Mendez (Professor) and Dr. Juan Eduardo Ramirez (Professor), and Dr. Sudhir Malik who was just hired in July 2014. Dr. Ramirez is in charge of the UPRM Tier-3 computing and will be building the network bandwidth infrastructure for the campus, while Dr. Mendez will continues his effort in finishing the heavy quark physics data analysis and moving to work on SUSY analysis for the 2015 data. Our last grant application in 2012 was awarded only for 2013-2014. As a result our postdoc position was lost last month of March. Since then, we have hired Dr. Malik as a new faculty in order to reinforce the group and to continue our efforts with the CMS experiment. Our plan is to hire another junior faculty in the next two years to strengthen the HEP group even further. Dr. Mendez continues with QuarkNet activities involving an ever larger group of high school physics teachers from all around Puerto Rico.

  1. A statistical approach to material classification using image patch exemplars.

    PubMed

    Varma, Manik; Zisserman, Andrew

    2009-11-01

    In this paper, we investigate material classification from single images obtained under unknown viewpoint and illumination. It is demonstrated that materials can be classified using the joint distribution of intensity values over extremely compact neighborhoods (starting from as small as 3 \\times 3 pixels square) and that this can outperform classification using filter banks with large support. It is also shown that the performance of filter banks is inferior to that of image patches with equivalent neighborhoods. We develop novel texton-based representations which are suited to modeling this joint neighborhood distribution for Markov random fields. The representations are learned from training images and then used to classify novel images (with unknown viewpoint and lighting) into texture classes. Three such representations are proposed and their performance is assessed and compared to that of filter banks. The power of the method is demonstrated by classifying 2,806 images of all 61 materials present in the Columbia-Utrecht database. The classification performance surpasses that of recent state-of-the-art filter bank-based classifiers such as Leung and Malik (IJCV 01), Cula and Dana (IJCV 04), and Varma and Zisserman (IJCV 05). We also benchmark performance by classifying all of the textures present in the UIUC, Microsoft Textile, and San Francisco outdoor data sets. We conclude with discussions on why features based on compact neighborhoods can correctly discriminate between textures with large global structure and why the performance of filter banks is not superior to that of the source image patches from which they were derived. PMID:19762929

  2. Lysophosphatidic acid induces vasodilation mediated by LPA1 receptors, phospholipase C, and endothelial nitric oxide synthase

    PubMed Central

    Ruisanchez, Éva; Dancs, Péter; Kerék, Margit; Németh, Tamás; Faragó, Bernadett; Balogh, Andrea; Patil, Renukadevi; Jennings, Brett L.; Liliom, Károly; Malik, Kafait U.; Smrcka, Alan V.; Tigyi, Gabor; Benyó, Zoltán

    2014-01-01

    Lysophosphatidic acid (LPA) has been implicated as a mediator of several cardiovascular functions, but its potential involvement in the control of vascular tone is obscure. Here, we show that both LPA (18:1) and VPC31143 (a synthetic agonist of LPA1–3 receptors) relax intact mouse thoracic aorta with similar Emax values (53.9 and 51.9% of phenylephrine-induced precontraction), although the EC50 of LPA- and VPC31143-induced vasorelaxations were different (400 vs. 15 nM, respectively). Mechanical removal of the endothelium or genetic deletion of endothelial nitric oxide synthase (eNOS) not only diminished vasorelaxation by LPA or VPC31143 but converted it to vasoconstriction. Freshly isolated mouse aortic endothelial cells expressed LPA1, LPA2, LPA4 and LPA5 transcripts. The LPA1,3 antagonist Ki16425, the LPA1 antagonist AM095, and the genetic deletion of LPA1, but not that of LPA2, abolished LPA-induced vasorelaxation. Inhibition of the phosphoinositide 3 kinase–protein kinase B/Akt pathway by wortmannin or MK-2206 failed to influence the effect of LPA. However, pharmacological inhibition of phospholipase C (PLC) by U73122 or edelfosine, but not genetic deletion of PLCε, abolished LPA-induced vasorelaxation and indicated that a PLC enzyme, other than PLCε, mediates the response. In summary, the present study identifies LPA as an endothelium-dependent vasodilator substance acting via LPA1, PLC, and eNOS.—Ruisanchez, É., Dancs, P., Kerék, M., Németh, T., Faragó, B., Balogh, A., Patil, R., Jennings, B. L., Liliom, K., Malik, K. U., Smrcka, A. V., Tigyi, G., Benyó, Z. Lysophosphatidic acid induces vasodilation mediated by LPA1 receptors, phospholipase C, and endothelial nitric oxide synthase. PMID:24249637

  3. Cluster radioactive decay within the preformed cluster model using relativistic mean-field theory densities

    SciTech Connect

    Singh, BirBikram; Patra, S. K.; Gupta, Raj K.

    2010-07-15

    We have studied the (ground-state) cluster radioactive decays within the preformed cluster model (PCM) of Gupta and collaborators [R. K. Gupta, in Proceedings of the 5th International Conference on Nuclear Reaction Mechanisms, Varenna, edited by E. Gadioli (Ricerca Scientifica ed Educazione Permanente, Milano, 1988), p. 416; S. S. Malik and R. K. Gupta, Phys. Rev. C 39, 1992 (1989)]. The relativistic mean-field (RMF) theory is used to obtain the nuclear matter densities for the double folding procedure used to construct the cluster-daughter potential with M3Y nucleon-nucleon interaction including exchange effects. Following the PCM approach, we have deduced empirically the preformation probability P{sub 0}{sup emp} from the experimental data on both the alpha- and exotic cluster-decays, specifically of parents in the trans-lead region having doubly magic {sup 208}Pb or its neighboring nuclei as daughters. Interestingly, the RMF-densities-based nuclear potential supports the concept of preformation for both the alpha and heavier clusters in radioactive nuclei. P{sub 0}{sup a}lpha{sup (emp)} for alpha decays is almost constant (approx10{sup -2}-10{sup -3}) for all the parent nuclei considered here, and P{sub 0}{sup c(emp)} for cluster decays of the same parents decrease with the size of clusters emitted from different parents. The results obtained for P{sub 0}{sup c(emp)} are reasonable and are within two to three orders of magnitude of the well-accepted phenomenological model of Blendowske-Walliser for light clusters.

  4. Exposure Assessment for Atmospheric Ultrafine Particles (UFPs) and Implications in Epidemiologic Research

    PubMed Central

    Sioutas, Constantinos; Delfino, Ralph J.; Singh, Manisha

    2005-01-01

    Epidemiologic research has shown increases in adverse cardiovascular and respiratory outcomes in relation to mass concentrations of particulate matter (PM) ≤2.5 or ≤10 μm in diameter (PM2.5, PM10, respectively). In a companion article [Delfino RJ, Sioutas C, Malik S. 2005. Environ Health Perspect 113(8):934–946]), we discuss epidemiologic evidence pointing to underlying components linked to fossil fuel combustion. The causal components driving the PM associations remain to be identified, but emerging evidence on particle size and chemistry has led to some clues. There is sufficient reason to believe that ultrafine particles < 0.1 μm (UFPs) are important because when compared with larger particles, they have order of magnitudes higher particle number concentration and surface area, and larger concentrations of adsorbed or condensed toxic air pollutants (oxidant gases, organic compounds, transition metals) per unit mass. This is supported by evidence of significantly higher in vitro redox activity by UFPs than by larger PM. Although epidemiologic research is needed, exposure assessment issues for UFPs are complex and need to be considered before undertaking investigations of UFP health effects. These issues include high spatial variability, indoor sources, variable infiltration of UFPs from a variety of outside sources, and meteorologic factors leading to high seasonal variability in concentration and composition, including volatility. To address these issues, investigators need to develop as well as validate the analytic technologies required to characterize the physical/chemical nature of UFPs in various environments. In the present review, we provide a detailed discussion of key characteristics of UFPs, their sources and formation mechanisms, and methodologic approaches to assessing population exposures. PMID:16079062

  5. Stratigraphic evidence for earthquakes and tsunamis on the west coast of South Andaman Island, India during the past 1000 years

    NASA Astrophysics Data System (ADS)

    Malik, Javed N.; Banerjee, Chiranjib; Khan, Afzal; Johnson, Frango C.; Shishikura, Masanobu.; Satake, Kenji.; Singhvi, Ashok K.

    2015-10-01

    Stratigraphic records from west coast of South Andaman Island revealed evidence of three historical earthquakes and associated transoceanic tsunamis during past 1000 yrs, in addition to the Mw 9.3 tsunamigenic earthquake of 26 December, 2004. Our finding suggests that along with Sumatran arc segment the Andaman-Arakan segment is also capable of generating mega-subduction zone earthquakes and transoceanic tsunamis. To study the near sub-surface stratigraphic succession we excavated shallow trenches and obtained geoslices from two sites around Collinpur (sites 1 and 2). The exposed succession comprised 11 lithounits (Unit a - youngest and k - oldest) of alternating sequence of coarser units overlain by peaty soils and some of these are indicative of deposition during paleo-tsunami events. Event I that predated AD 800, and is marked by a 35-40 cm thick deposit of fine gravel to coarse sands along with broken shell fragments (Unit k). Event II dated around AD 660-800, is represented by 20-25 cm thick coarse sand and broken shell fragments (Unit i). Based on stratigraphic evidences of land-level changes, this event is attributed to a near source rupture along Andaman-Arakan segment, accompanied by a transoceanic tsunami. Event III, occurred around AD 1120-1300, is marked by a 50 cm thick sand deposit (Unit g). The 2004 tsunami resulted in deposition of 15 cm thick medium to coarse sand at the same location. We infer that the 2004 tsunami and Event III resulted in different styles of sedimentation at the same site. Four events at Collinpur along with the record of a subsidence event of AD 1679 from the east coast of Andaman, close-to, Port Blair (Malik et al., 2011), suggest that mega-subduction zone earthquakes and associated tsunamis recur at an interval of 300-500 years at variable locations along the Sumatra-Andaman subduction zone.

  6. Shape representation by a network of V4-like cells.

    PubMed

    Murphy, Thomas M; Finkel, Leif H

    2007-10-01

    Cells in extrastriate visual cortex have been reported to be selective for various configurations of local contour shape [Pasupathy, A., & Connor, C. E. (2001). Shape representation in area V4: Position-specific tuning for boundary conformation. The Journal of Neurophysiology, 86 (5), 2505-2519; Hegdé, J., & Van Essen, D. C. (2003). Strategies of shape representation in macaque visual area V2. Visual Neuroscience, 20 (3), 313-328]. Specifically, Pasupathy and Connor found that in area V4 most cells are strongly responsive to a particular local contour conformation located at a specific position on the object's boundary. We used a population of "V4-like cells"-units sensitive to multiple shape features modeled after V4 cell behavior-to generate representations of different shapes. Standard classification algorithms (earth mover's distance, support vector machines) applied to this population representation demonstrate high recognition accuracies classifying handwritten digits in the MNIST database and objects in the MPEG-7 Shape Silhouette database. We compare the performance of the V4-like unit representation to the "shape context" representation of Belongie et al. [Belongie, S., Malik, J., & Puzicha, J. (2002). Shape matching and object recognition using shape contexts. IEEE Transactions on Pattern Analysis and Machine Intelligence, 24 (24), 509-522]. Results show roughly comparable recognition accuracies using the two representations when tested on portions of the MNIST database. We analyze the relative contributions of various V4-like feature sensitivities to recognition accuracy and robustness to noise - feature sensitivities include curvature magnitude, direction of curvature, global orientation of the contour segment, distance of the contour segment from object center, and modulatory effect of adjacent contour regions. Among these, local curvature appears to be the most informative variable for shape recognition. Our results support the hypothesis that V4

  7. Using shape contexts method for registration of contra lateral breasts in thermal images

    PubMed Central

    Etehadtavakol, Mahnaz; Ng, Eddie Yin-Kwee; Gheissari, Niloofar

    2014-01-01

    AIM: To achieve symmetric boundaries for left and right breasts boundaries in thermal images by registration. METHODS: The proposed method for registration consists of two steps. In the first step, shape context, an approach as presented by Belongie and Malik was applied for registration of two breast boundaries. The shape context is an approach to measure shape similarity. Two sets of finite sample points from shape contours of two breasts are then presented. Consequently, the correspondences between the two shapes are found. By finding correspondences, the sample point which has the most similar shape context is obtained. RESULTS: In this study, a line up transformation which maps one shape onto the other has been estimated in order to complete shape. The used of a thin plate spline permitted good estimation of a plane transformation which has capability to map unselective points from one shape onto the other. The obtained aligning transformation of boundaries points has been applied successfully to map the two breasts interior points. Some of advantages for using shape context method in this work are as follows: (1) no special land marks or key points are needed; (2) it is tolerant to all common shape deformation; and (3) although it is uncomplicated and straightforward to use, it gives remarkably powerful descriptor for point sets significantly upgrading point set registration. Results are very promising. The proposed algorithm was implemented for 32 cases. Boundary registration is done perfectly for 28 cases. CONCLUSION: We used shape contexts method that is simple and easy to implement to achieve symmetric boundaries for left and right breasts boundaries in thermal images. PMID:25493241

  8. Novel determination of radon-222 velocity in deep subsurface rocks, and the feasibility to using radon as an earthquake precursor

    NASA Astrophysics Data System (ADS)

    Zafrir, Hovav; Benhorin, Yochy; Malik, Uri; Chemo, Chaim

    2016-04-01

    An enhanced radon monitoring system was designed in order to study shallow versus deep subsurface processes affecting the appearance of radon anomalies. The method is based on the assumption that the climatic influence is limited since its energy decreases with the decrease in thickness of the geological cover whereby its effect is reduced to a negligible value at depth. Hence, lowering gamma and alpha detectors into deep boreholes and monitoring their temporal variations relative to a reference couple at shallow depths of 10-40 m eliminates the ambient thermal and pressure-induced contribution from the total radon time series. It allows highlighting the residual portion of the radon signals that might be associated with the geodynamic processes. The primary technological key is the higher sensitivity of the gamma detectors - in comparison to the solid-state alpha detectors, which are also suitable for threading into narrow boreholes in parallel to the narrow gamma detector (Zafrir et al., 2013*). The unique achievements of the novel system that was installed at the Sde Eliezer site close to the Hula Valley western border fault (HWBF) in northern Israel are: a) Determination, for the first time, of the radon movement velocity within rock layers at depths of several tens of meters, namely, 25 m per hour on average; b) Distinguishing between the diurnal periodical effect of the ambient temperature and the semi-diurnal effect of the ambient pressure on the radon temporal spectrum; c) Identification of a radon random pre-seismic anomaly preceding the Nuweiba, M 5.5 earthquake of 27 June 2015 that occurred within Dead Sea Fault Zone. * Zafrir, H., Barbosa, S.M. and Malik, U., 2013. Differentiation between the effect of temperature and pressure on radon within the subsurface geological media, Radiat. Meas., 49, 39-56. doi:10.1016/j.radmeas.2012.11.019.

  9. Cue combination and color edge detection in natural scenes.

    PubMed

    Zhou, Chunhong; Mel, Bartlett W

    2008-01-01

    Biological vision systems are adept at combining cues to maximize the reliability of object boundary detection, but given a set of co-localized edge detectors operating on different sensory channels, how should their responses be combined to compute overall edge probability? To approach this question, we collected joint responses of red-green and blue-yellow edge detectors both ON- and OFF-edges using a human-labeled image database as ground truth (D. Martin, C. Fowlkes, D. Tal, & J. Malik, 2001). From a Bayesian perspective, the rule for combining edge cues is linear in the individual cue strengths when the ON-edge and OFF-edge joint distributions are (1) statistically independent and (2) lie in an exponential ratio to each other. Neither condition held in the color edge data we collected, and the function P(ON cues)-dubbed the "combination rule"-was correspondingly complex and nonlinear. To characterize the statistical dependencies between edge cues, we developed a generative model ("saturated common factor," SCF) that provided good fits to the measured ON-edge and OFF-edge joint distributions. We also found that a divisive normalization scheme derived from the SCF model transformed raw edge detector responses into values with simpler distributions that satisfied both preconditions for a linear combination rule. A comparison to another normalization scheme (O. Schwartz & E. Simoncelli, 2001) suggests that apparently minor details of the normalization process can strongly influence its performance. Implications of the SCF normalization scheme for cue combination in biological sensory systems are discussed. PMID:18484843

  10. Automatic tissue segmentation of breast biopsies imaged by QPI

    NASA Astrophysics Data System (ADS)

    Majeed, Hassaan; Nguyen, Tan; Kandel, Mikhail; Marcias, Virgilia; Do, Minh; Tangella, Krishnarao; Balla, Andre; Popescu, Gabriel

    2016-03-01

    The current tissue evaluation method for breast cancer would greatly benefit from higher throughput and less inter-observer variation. Since quantitative phase imaging (QPI) measures physical parameters of tissue, it can be used to find quantitative markers, eliminating observer subjectivity. Furthermore, since the pixel values in QPI remain the same regardless of the instrument used, classifiers can be built to segment various tissue components without need for color calibration. In this work we use a texton-based approach to segment QPI images of breast tissue into various tissue components (epithelium, stroma or lumen). A tissue microarray comprising of 900 unstained cores from 400 different patients was imaged using Spatial Light Interference Microscopy. The training data were generated by manually segmenting the images for 36 cores and labelling each pixel (epithelium, stroma or lumen.). For each pixel in the data, a response vector was generated by the Leung-Malik (LM) filter bank and these responses were clustered using the k-means algorithm to find the centers (called textons). A random forest classifier was then trained to find the relationship between a pixel's label and the histogram of these textons in that pixel's neighborhood. The segmentation was carried out on the validation set by calculating the texton histogram in a pixel's neighborhood and generating a label based on the model learnt during training. Segmentation of the tissue into various components is an important step toward efficiently computing parameters that are markers of disease. Automated segmentation, followed by diagnosis, can improve the accuracy and speed of analysis leading to better health outcomes.

  11. β2-Adrenergic receptor supports prolonged theta tetanus-induced LTP.

    PubMed

    Qian, Hai; Matt, Lucas; Zhang, Mingxu; Nguyen, Minh; Patriarchi, Tommaso; Koval, Olha M; Anderson, Mark E; He, Kaiwen; Lee, Hey-Kyoung; Hell, Johannes W

    2012-05-01

    The widespread noradrenergic innervation in the brain promotes arousal and learning by molecular mechanisms that remain largely undefined. Recent work shows that the β(2)-adrenergic receptor (β(2)AR) is linked to the AMPA-type glutamate receptor subunit GluA1 via stargazin and PSD-95 (Joiner ML, Lise MF, Yuen EY, Kam AY, Zhang M, Hall DD, Malik ZA, Qian H, Chen Y, Ulrich JD, Burette AC, Weinberg RJ, Law PY, El-Husseini A, Yan Z, Hell JW. EMBO J 29: 482-495, 2010). We now demonstrate that the β(2)AR plays a prominent role in long-term potentiation (LTP) induced by a train of 900 stimuli at 5 Hz (prolonged theta-tetanus-LTP, or PTT-LTP) in the hippocampal CA1 region in mice, which requires simultaneous β-adrenergic stimulation. Although PTT-LTP was impaired in hippocampal slices from β(1)AR and β(2)AR knockout (KO) mice, only β(2)AR-selective stimulation with salbutamol supported this PTT-LTP in wild-type (WT) slices, whereas β(1)AR-selective stimulation with dobutamine (+ prazosin) did not. Furthermore, only the β(2)AR-selective antagonist ICI-118551 and not the β(1)AR-selective antagonist CGP-20712 inhibited PTT-LTP and phosphorylation of GluA1 on its PKA site S845 in WT slices. Our analysis of S845A knockin (KI) mice indicates that this phosphorylation is relevant for PTT-LTP. These results identify the β(2)AR-S845 signaling pathway as a prominent regulator of synaptic plasticity. PMID:22338020

  12. Correlations between Crustal Structure and Slip on the Cascadia Megathrust (Invited)

    NASA Astrophysics Data System (ADS)

    Trehu, A. M.

    2013-12-01

    A number of active-source seismic imaging experiments of the Cascadia forearc margin have been conducted over the past three decades. Seismic P-wave velocity models derived from these experiments, when combined with geodetic, potential field, morphological and other data, reveal structures in both the upper and lower plate that can be correlated with current microseismic activity, geodetic signals indicating interplate locking, and apparent segmentation of past large plate boundary earthquakes as determined from onshore and offshore paleoseismic data. These data are being interpreted to construct maps of the apparent seismic velocity structure averaged over several km above and below the expected plate boundary and extending from the region characterized by episodic tremor and slip up dip to the deformation front. Preliminary results for the recent CIET, COAST and Ridge-to-Trench experiments that support, challenge or extend an evolving working model for structural constraints on plate boundary deformation in Cascadia will also be discussed. Other co-PIs who have planned and executed the CIET, COAST and Ridge-to-Trench experiments are listed below with the lead PI for each group listed first. CIET (Cascadia Initiative Science Team): Doug Toomey, Emilie Hooft (both at Un. of Oregon); Bob Dziak (Oregon State Un. NOAA); William Wilcock (Un. Washington); Susan Schwartz (UC Santa Cruz); John Collins, Jeff McGuire (WHOI); Maya Tolstoy (LDEO); Richard Allen (UC Berkeley) COAST (Cascadia Open-Access Seismic Transects): Steve Holbrook (Un. Wyoming); Graham Kent (Un. Nevada Reno); Katie Keranen (Un. Oklahoma); Paul Johnson (Un. Washington); Jackie Caplan-Auerbach (Western Washington Un.); Harold Tobin (Un. Wisconson) Ridge-to-Trench: Suzanne Carbotte, Helene Carton, Geoff Abers (all at LDEO); Pablo Canales (WHOI); Mladen Nedimovic (Dalhousie Un.)

  13. PREFACE: High Performance Computing Symposium 2011

    NASA Astrophysics Data System (ADS)

    Talon, Suzanne; Mousseau, Normand; Peslherbe, Gilles; Bertrand, François; Gauthier, Pierre; Kadem, Lyes; Moitessier, Nicolas; Rouleau, Guy; Wittig, Rod

    2012-02-01

    HPCS (High Performance Computing Symposium) is a multidisciplinary conference that focuses on research involving High Performance Computing and its application. Attended by Canadian and international experts and renowned researchers in the sciences, all areas of engineering, the applied sciences, medicine and life sciences, mathematics, the humanities and social sciences, it is Canada's pre-eminent forum for HPC. The 25th edition was held in Montréal, at the Université du Québec à Montréal, from 15-17 June and focused on HPC in Medical Science. The conference was preceded by tutorials held at Concordia University, where 56 participants learned about HPC best practices, GPU computing, parallel computing, debugging and a number of high-level languages. 274 participants from six countries attended the main conference, which involved 11 invited and 37 contributed oral presentations, 33 posters, and an exhibit hall with 16 booths from our sponsors. The work that follows is a collection of papers presented at the conference covering HPC topics ranging from computer science to bioinformatics. They are divided here into four sections: HPC in Engineering, Physics and Materials Science, HPC in Medical Science, HPC Enabling to Explore our World and New Algorithms for HPC. We would once more like to thank the participants and invited speakers, the members of the Scientific Committee, the referees who spent time reviewing the papers and our invaluable sponsors. To hear the invited talks and learn about 25 years of HPC development in Canada visit the Symposium website: http://2011.hpcs.ca/lang/en/conference/keynote-speakers/ Enjoy the excellent papers that follow, and we look forward to seeing you in Vancouver for HPCS 2012! Gilles Peslherbe Chair of the Scientific Committee Normand Mousseau Co-Chair of HPCS 2011 Suzanne Talon Chair of the Organizing Committee UQAM Sponsors The PDF also contains photographs from the conference banquet.

  14. Rock strength reductions during incipient weathering

    NASA Astrophysics Data System (ADS)

    Kelly, P. J.; Anderson, S. P.; Blum, A.

    2012-12-01

    Patrick Kelly, Suzanne Anderson, Alex Blum In rock below the surface, temperature swings are damped, water flow is limited, and biota are few. Yet rock weathers, presumably driven by these environmental parameters. We use rock strength as an indicator of rock weathering in Gordon Gulch in the Boulder Creek Critical Zone Observatory, a watershed at 2500 m underlain by Proterozoic gneiss intruded by the Boulder Creek granodiorite. Fresh rock is found at depths of 8-30 m in this area, and the thickness of the weathered rock zone imaged with shallow seismic refraction is greater on N-facing slopes than S-facing slopes (Befus et al., 2011, Vadose Zone J.). We use the Brazilian splitting test to determine tensile strength of cores collected with a portable drilling rig. Spatial variations in rock strength that we measure in the top 2 m of the weathered rock mantle can be connected to two specific environmental variables: slope aspect and the presence of a soil mantle. We find weaker rock on N-facing slopes and under soil. There is no clear correlation between rock strength and the degree of chemical alteration in these minimally weathered rocks. Denudation rates of 20-30 microns/yr imply residence times of 105-106 years within the weathered rock layers of the critical zone. Given these timescales, rock weathering is more likely to have occurred under glacial climate conditions, when periglacial processes prevailed in this non-glaciated watershed. Incipient weathering of rock appears to be controlled by water and frost cracking in Gordon Gulch. Water is more effectively delivered to the subsurface on N-facing slopes, and is more likely held against rock surfaces under soil than on outcrops. These moisture conditions, and the lower surface temperatures that prevail on N-facing slopes also favor frost cracking as an important weathering process.

  15. Final Progress Report: Developing Ethical Practices for Genetics Testing in the Workplace

    SciTech Connect

    Laura Roberts, MD; Teddy Warner, PhD

    2008-05-14

    Our multidisciplinary research team for this project involved collaboration between the Department of Psychiatry and Behavioral Medicine at the Medical College of Wisconsin (MCW) and the Department of Family and Community Medicine at the University of New Mexico Health Sciences Center (UNM HSC). Our research team in Wisconsin was led by Laura Roberts, M.D., Principal Investigator, and included Scott Helberg, MLS (Project Coordinator), Kate Green Hammond, Ph.D. (Consultant), Krisy Edenharder (Research Coordinator), and Mark Talatzko (Research Assistant). Our New Mexico-based team was led by Teddy Warner, Ph.D., Co-Principal Investigator and UNM Site Principal Investigator, and included Suzanne Roybal (Project Assistant), Darlyn Mabon (Project Assistant), Kate Green Hammond, PhD (Senior Research Scientist on the UNM team from 2004 until January, 2007), and Paulette Christopher (Research Assistant). In addition, computer technical and web support for the web-based survey conducted on a secure server at the University of New Mexico was provided by Kevin Wiley and Kim Hagen of the Systems and Programming Team of the Health Sciences Center Library and Information Center. We stated 3 aims in the grant proposal: (1) To collect web survey reports of the ethical perspectives, concerns, preferences and decision-making related to genetic testing using surveys from employees at: (a) Los Alamos National Laboratory (LANL); (b) Sandia National Laboratories (SNL); and (c) the University of New Mexico Health Sciences Center (UNMHSC); (2) To perform an extensive literature search and the extant survey data to develop evidence-based policy recommendations for ethically sound genetic testing associated with research and occupational health activities in the workplace; and, (3) To host a conference at the Medical College of Wisconsin to provide employers, workers, health professionals, researchers, the public, and the media an opportunity to consider ethical issues involved in genetic

  16. A non-Linear transport model for determining shale rock characteristics

    NASA Astrophysics Data System (ADS)

    Ali, Iftikhar; Malik, Nadeem

    2016-04-01

    Unconventional hydrocarbon reservoirs consist of tight porous rocks which are characterised by nano-scale size porous networks with ultra-low permeability [1,2]. Transport of gas through them is not well understood at the present time, and realistic transport models are needed in order to determine rock properties and for estimating future gas pressure distribution in the reservoirs. Here, we consider a recently developed non-linear gas transport equation [3], ∂p-+ U ∂p- = D ∂2p-, t > 0, (1) ∂t ∂x ∂x2 complimented with suitable initial and boundary conditions, in order to determine shale rock properties such as the permeability K, the porosity φ and the tortuosity, τ. In our new model, the apparent convection velocity, U = U(p,px), and the apparent diffusivity D = D(p), are both highly non-linear functions of the pressure. The model incorporate various flow regimes (slip, surface diffusion, transition, continuum) based upon the Knudsen number Kn, and also includes Forchchiemers turbulence correction terms. In application, the model parameters and associated compressibility factors are fully pressure dependent, giving the model more realism than previous models. See [4]. Rock properties are determined by solving an inverse problem, with model parameters adjustment to minimise the error between the model simulation and available data. It is has been found that the proposed model performs better than previous models. Results and details of the model will be presented at the conference. Corresponding author: namalik@kfupm.edu.sa and nadeem_malik@cantab.net References [1] Cui, X., Bustin, A.M. and Bustin, R., "Measurements of gas permeability and diffusivity of tight reservoir rocks: different approaches and their applications", Geofluids 9, 208-223 (2009). [2] Chiba R., Fomin S., Chugunov V., Niibori Y. and Hashida T., "Numerical Simulation of Non Fickian Diffusion and Advection in a Fractured Porous Aquifer", AIP Conference Proceedings 898, 75 (2007

  17. Automated science target selection for future Mars rovers: A machine vision approach for the future ESA ExoMars 2018 rover mission

    NASA Astrophysics Data System (ADS)

    Tao, Yu; Muller, Jan-Peter

    2013-04-01

    The ESA ExoMars 2018 rover is planned to perform autonomous science target selection (ASTS) using the approaches described in [1]. However, the approaches shown to date have focused on coarse features rather than the identification of specific geomorphological units. These higher-level "geoobjects" can later be employed to perform intelligent reasoning or machine learning. In this work, we show the next stage in the ASTS through examples displaying the identification of bedding planes (not just linear features in rock-face images) and the identification and discrimination of rocks in a rock-strewn landscape (not just rocks). We initially detect the layers and rocks in 2D processing via morphological gradient detection [1] and graph cuts based segmentation [2] respectively. To take this further requires the retrieval of 3D point clouds and the combined processing of point clouds and images for reasoning about the scene. An example is the differentiation of rocks in rover images. This will depend on knowledge of range and range-order of features. We show demonstrations of these "geo-objects" using MER and MSL (released through the PDS) as well as data collected within the EU-PRoViScout project (http://proviscout.eu). An initial assessment will be performed of the automated "geo-objects" using the OpenSource StereoViewer developed within the EU-PRoViSG project (http://provisg.eu) which is released in sourceforge. In future, additional 3D measurement tools will be developed within the EU-FP7 PRoViDE2 project, which started on 1.1.13. References: [1] M. Woods, A. Shaw, D. Barnes, D. Price, D. Long, D. Pullan, (2009) "Autonomous Science for an ExoMars Rover-Like Mission", Journal of Field Robotics Special Issue: Special Issue on Space Robotics, Part II, Volume 26, Issue 4, pages 358-390. [2] J. Shi, J. Malik, (2000) "Normalized Cuts and Image Segmentation", IEEE Transactions on Pattern Analysis and Machine Intelligence, Volume 22. [3] D. Shin, and J.-P. Muller (2009

  18. Applying the Science of Science Communication to Climate Change and Clean Energy: Lessons Learned from the NSF- and PBS-supported "Earth: The Operators' Manual"

    NASA Astrophysics Data System (ADS)

    Haines-Stiles, G.; Akuginow, E.; Sanford, C.

    2014-12-01

    Yale legal scholar and professor of psychology Dan Kahan has criticized the climate change science community for not applying what's known about effective communications strategies to topics with potentially controversial content. "Earth: The Operators' Manual," funded by NSF's Informal Science Education program and appearing on PBS was hosted by Penn State geoscientist Richard Alley. From the initial proposal forward into airing on public television in 2011 and 2012, ETOM aimed to be authoritative and apolitical while still being engaging to general audiences. Based on social scientific insights from project Advisor, Suzanne Moser, and others, ETOM aimed to avoid "climate porn" scare tactics and over-used footage, and to enlist a diverse group of "messengers" in addition to Alley. An important design criterion was to give equal time to clean energy solutions while pulling no punches as to the consensus findings of leading climate scientists. With the ETOM project now completed and final reports submitted to NSF, what results can be shared to inform future efforts? And how did ETOM compare in audience impact with other major media efforts such as Al Gore's "An Inconvenient Truth" or Showtime's more recent "Years of Living Dangerously"? Results reported draw on the external evaluation by Rockman Et Al, and include both quantitative and qualitative data. Key findings are the importance of including Texan ranchers enthusiastic about wind power alongside Navy Admirals adamant that climate change is human-caused and Marines implementing solar energy to reduce casualties incurred while transporting fossil fuels. In-person presentations by Alley and others at science centers served as de facto focus groups for scripting the TV programs, along with actual focus groups convened by Rockman. The 3rd program, ENERGY QUEST USA, documented 5 quite different communities, from Alaska to Forth Worth, Baltimore, Portland and Kansas, all using competition, local values, and economic

  19. Self-Organized Biological Dynamics and Nonlinear Control

    NASA Astrophysics Data System (ADS)

    Walleczek, Jan

    2006-04-01

    The frontiers and challenges of biodynamics research Jan Walleczek; Part I. Nonlinear Dynamics in Biology and Response to Stimuli: 1. External signals and internal oscillation dynamics - principal aspects and response of stimulated rhythmic processes Friedemann Kaiser; 2. Nonlinear dynamics in biochemical and biophysical systems: from enzyme kinetics to epilepsy Raima Larter, Robert Worth and Brent Speelman; 3. Fractal mechanisms in neural control: human heartbeat and gait dynamics in health and disease Chung-Kang Peng, Jeffrey M. Hausdorff and Ary L. Goldberger; 4. Self-organising dynamics in human coordination and perception Mingzhou Ding, Yanqing Chen, J. A. Scott Kelso and Betty Tuller; 5. Signal processing in biochemical reaction networks Adam P. Arkin; Part II. Nonlinear Sensitivity of Biological Systems to Electromagnetic Stimuli: 6. Electrical signal detection and noise in systems with long-range coherence Paul C. Gailey; 7. Oscillatory signals in migrating neutrophils: effects of time-varying chemical and electrical fields Howard R. Petty; 8. Enzyme kinetics and nonlinear biochemical amplification in response to static and oscillating magnetic fields Jan Walleczek and Clemens F. Eichwald; 9. Magnetic field sensitivity in the hippocampus Stefan Engström, Suzanne Bawin and W. Ross Adey; Part III. Stochastic Noise-Induced Dynamics and Transport in Biological Systems: 10. Stochastic resonance: looking forward Frank Moss; 11. Stochastic resonance and small-amplitude signal transduction in voltage-gated ion channels Sergey M. Bezrukov and Igor Vodyanoy; 12. Ratchets, rectifiers and demons: the constructive role of noise in free energy and signal transduction R. Dean Astumian; 13. Cellular transduction of periodic and stochastic energy signals by electroconformational coupling Tian Y. Tsong; Part IV. Nonlinear Control of Biological and Other Excitable Systems: 14. Controlling chaos in dynamical systems Kenneth Showalter; 15. Electromagnetic fields and biological

  20. CMA Announces the 1996 Responsible Care Catalyst Awards Winners

    NASA Astrophysics Data System (ADS)

    1996-06-01

    Eighteen exceptional teachers of science, chemical technology, chemistry, and chemical engineering have been selected to receive a Responsible Care Chemical Manufacturers Association's 1996 Catalyst Award. The Responsible Care Catalyst Awards Program honors individuals who have the ability to inspire students toward careers in chemistry and science-related fields through their excellent teaching ability in and out of the classroom. The program also seeks to draw public attention to the importance of quality chemistry and science teaching at the undergraduate level. Since the award was established in 1957, 502 teachers of science, chemistry, and chemical engineering have been honored. Winners are selected from a wide range of nominations submitted by colleagues, friends, and administrators. All pre-high school, high school, two and four-year college, or university teachers in the United States and Canada are eligible. Each award winner will be presented with a medal and citation. National award winners receive 5,000; regional award winners receive 2,500. National Winners. Martin N. Ackermann, Oberlin College, Oberlin, OH Kenneth R. Jolls, Iowa State University, Ames, IA Suzanne Zobrist Kelly, Warren H. Meeker Elementary School, Ames, IA John V. Kenkel, Southeast Community College, Lincoln, NE George C. Lisensky, Beloit College, Beloit, WI James M. McBride, Yale University, New Haven, CT Marie C. Sherman, Ursuline Academy, St. Louis, MO Dwight D. Sieggreen, Cooke Middle School, Northville, MI Regional Winners Two-Year College. East-Georgianna Whipple-VanPatter, Central Community College, Hastings, NE West-David N. Barkan, Northwest College, Powell, WY High School. East-John Hnatow, Jr., Emmaus High School, Northampton, PA South-Carole Bennett, Gaither High School, Tampa, FL Midwest-Kenneth J. Spengler, Palatine High School, Palatine, IL West-Ruth Rand, Albuquerque, Albuquerque, NM Middle School. East-Thomas P. Kelly, Grandville Public Schools, Grandville, NH

  1. Intermittency and Topology of Shock Induced Mixing

    NASA Astrophysics Data System (ADS)

    Tellez, Jackson; Redondo, Jose M.; Ben Mahjoub, Otman; Malik, Nadeem; Vila, Teresa

    2016-04-01

    , University of Cambridge. Cambridge [3] Redondo J.M. (1996) Vertical microstructure and mixing in stratified flows. Advances in Turbulence VI. Eds. S. Gavrilakis et al. 605-608. [4] Redondo J.M.,M.A. Sanchez y R. Castilla (2000) Vortical structures in stratified turbulent flows, Turbulent diffusion in the environment. Eds. Redondo J.M. and Babiano A. 113-120. [5] Mahjoub, O. B., Babiano A. and Redondo, J. M.: Structure functions in complex flows, Flow, Turbulence and Combustion, 59,299-313, 1998. [6] Malik, N.A. Vassilicos, J.C. 1999 A Lagrangian model of turbulent dispersion with turbulent-like flow structure: comparison with direct numerical simulation for two-particle statistics. Phys. Fluids, 11, 1572-1580. [7] Fung, J.C.H., Hunt, J.C.R., Malik, N.A. and Perkins, R.J.(1992. Kinematic simulation of homogeneous turbulence by unsteady random Fourier modes. J. Fluid Mech.236-281. [8] Tarquis, A. M., Platonov, A., Matulka, A., Grau, J., Sekula, E., Diez, M., & Redondo, J. M. (2014). Application of multifractal analysis to the study of SAR features and oil spills on the ocean surface. Nonlinear Processes in Geophysics, 21(2), 439-450. [9] Fraunie, P., Berreba, S., Chashechkin, Y. D., Velasco, D., & Redondo, J. M. (2008). Large eddy simulation and laboratory experiments on the decay of grid wakes in strongly stratified flows. Nuovo Cimento C, 31, 909-930.

  2. Condensed Matter Theories: Volume 25

    NASA Astrophysics Data System (ADS)

    Ludeña, Eduardo V.; Bishop, Raymond F.; Iza, Peter

    2011-03-01

    dynamics and density functional theory. Exchange-correlation functionals from the identical-particle Ornstein-Zernike equation: Basic formulation and numerical algorithms / R. Cuevas-Saavedra and P. W. Ayers. Features and catalytic properties of RhCu: A review / S. Gonzalez, C. Sousa and F. Illas. Kinetic energy functionals: Exact ones from analytic model wave functions and approximate ones in orbital-free molecular dynamics / V. V. Karasiev ... [et al.]. Numerical analysis of hydrogen storage in carbon nanopores / C. Wexler ... [et al.] -- pt. F. Superconductivity. Generalized Bose-Einstein condensation in superconductivity / M. de Llano. Kohn anomaly energy in conventional superconductors equals twice the energy of the superconducting gap: How and why? / R. Chaudhury and M. P. Das. Collective excitations in superconductors and semiconductors in the presence of a condensed phase / Z. Koinov. Thermal expansion of ferromagnetic superconductors: Possible application to UGe[symbol] / N. Hatayama and R. Konno. Generalized superconducting gap in a Boson-Fermion model / T. A. Mamedov and M. de Llano. Influence of domain walls in the superconductor/ferromagnet proximity effect / E. J. Patino. Spin singlet and triplet superconductivity induced by correlated hopping interactions / L. A. Perez, J. S. Millan and C. Wang -- pt. G. Statistical mechanics, relativistic quantum mechanics. Boltzmann's ergodic hypothesis: A meeting place for two cultures / M. H. Lee. Electron-electron interaction in the non-relativistic limit / F. B. Malik.

  3. Improved description of one- and two-hole excitations after electron capture in 163Ho and the determination of the neutrino mass

    NASA Astrophysics Data System (ADS)

    Faessler, Amand; Šimkovic, F.

    2015-04-01

    The atomic pair 163Ho and 163Dy , because of its small Q value of about 2.5 keV, seems to be the best pair to use to determine the neutrino mass by electron capture. The bolometer spectrum measures the full deexcitation energy of dysprosium (by x rays and Auger electrons plus the recoil of holmium, which can be neglected). The spectrum has an upper limit given by the Q value minus the neutrino mass. Till now this spectrum has been calculated in dysprosium allowing excitations with 3 s1 /2 , 3 p1 /2 , 4 s1 /2 , 4 p1 /2 , 5 s1 /2 , and 5 p1 /2 (and 6 s1 /2 ) holes only. Robertson [R. G. H. Robertson, arXiv:1411.2906v1] also recently calculated the spectrum with two-electron-hole excitations in Dy. He took the probability for the excitation for the second electron hole from the work of Carlson and Nestor [T. A. Carlson, C. W. Nestor, T. C. Tucker, and F. B. Malik, Phys. Rev. 169, 27 (1968), 10.1103/PhysRev.169.27; T. A. Carlson and C. W. Nestor, Phys. Rev. A 8, 2887 (1973) 10.1103/PhysRevA.8.2887] for Z =54 xenon. The neutrino mass must finally be obtained by a simultaneous fit of the Q value, together with the properties of the relevant resonances, and the neutrino mass to the the upper end of the spectrum. Under the assumption that only one resonance (independent of its nature: one-hole, two-hole, multihole, or of other origin) near the Q value determines the upper end of the spectrum and that the profile of this leading state is Lorentzian, one has to fit simultaneously four parameters (neutrino mass, strength, distance of the leading resonance to the Q value, and width). If more than one resonance is of comparable importance for the upper end of the spectrum, it might be difficult or even impossible to extract the neutrino mass reliably. Compared to the work of Robertson this work includes the following improvements. (i) The two-hole probabilities are calculated in the Dirac-Hartree-Fock (DHF) approach for holmium and dysprosium but not for xenon. (ii) In

  4. PREFACE: Proceedings of the 2008 Numerical Relativity Data Analysis Meeting, Syracuse University, Syracuse, NY, USA, 11-14 August 2008 Proceedings of the 2008 Numerical Relativity Data Analysis Meeting, Syracuse University, Syracuse, NY, USA, 11-14 August 2008

    NASA Astrophysics Data System (ADS)

    Sutton, Patrick; Shoemaker, Deirdre

    2009-06-01

    many of the highlights of the meeting. These include an article that summarizes the NINJA project, a collaboration between data analysts and numerical relativists that is testing data analysis pipelines on numerical relativity waveforms buried in simulated detector noise. In addition, there are several technical papers concerning the results of team efforts involved in NINJA. Also included is a review of the status of black-hole simulations, updates on black-hole and neutron-star sources of gravitational waves, accuracy tests of gravitational waveforms, binary parameter estimation methods, updates on searches using analytic and phenomenological waveforms, and a road map to the advanced LIGO detectors. The conference organizers would like to acknowledge the financial support of the National Science Foundation under grant number PHY-0838740, and support from Syracuse University. We thank the local organizing committee of Duncan Brown, Penny Davis and Joshua Smith as well as the other members of the scientific organizing committee of Duncan Brown (Syracuse University), Sascha Husa (AEI), Badri Krishnan (AEI) and Harald Pfeiffer (CITA) for putting together an exciting conference. We also thank the editorial staff of the journal Classical and Quantum Gravity, especially Adam Day, Suzanne Prescott, and Joseph Tennant for their assistance, support, and patience in preparing this issue. Finally, we would like to thank the participants of NRDA2008 for making this conference so vital and energizing. The next NRDA meeting will be held at the Albert Einstein Institute in Potsdam, Germany 6-9 July 2009. We look forward to new collaborations, and to the continued blurring of the lines between our communities as we explore the interface of numerical relativity and data analysis. Patrick Sutton, Cardiff University and Deirdre Shoemaker, Georgia Institute of Technology Guest Editors

  5. National Geothermal Data System: Transforming the Discovery, Access, and Analytics of Data for Geothermal Exploration

    SciTech Connect

    Patten, Kim

    2013-05-01

    data are insufficient for promoting geothermal exploration. Authors of this paper are Arlene Anderson, US DOE Geothermal Technologies Office, David Blackwell, Southern Methodist University (SMU), Cathy Chickering (SMU), Toni Boyd, Oregon Institute of Technology’s GeoHeat Center, Roland Horne, Stanford University, Matthew MacKenzie, Uberity, Joe Moore, University of Utah, Duane Nickull, Uberity, Stephen Richard, Arizona Geological Survey, and Lisa Shevenell, University of Nevada, Reno. “NGDS User Centered Design: Meeting the Needs of the Geothermal Community,” discusses the user- centered design approach taken in the development of a user interface solution for the NGDS. The development process is research based, highly collaborative, and incorporates state-of-the-art practices to ensure a quality user interface for the widest and greatest utility. Authors of this paper are Harold Blackman, Boise State University, Suzanne Boyd, Anthro-Tech, Kim Patten, Arizona Geological Survey, and Sam Zheng, Siemens Corporate Research. “Fueling Innovation and Adoption by Sharing Data on the DOE Geothermal Data Repository Node on the National Geothermal Data System,” describes the motivation behind the development of the Geothermal Data Repository (GDR) and its role in the NGDS. This includes the benefits of using the GDR to share geothermal data of all types and DOE’s data submission process. Authors of this paper are Jon Weers, National Renewable Energy Laboratory and Arlene Anderson, US DOE Geothermal Technologies Office. Finally, “Developing the NGDS Adoption of CKAN for Domestic & International Data Deployment,” provides an overview of the “Node-In-A-Box” software package designed to provide data consumers with a highly functional interface to access the system, and to ease the burden on data providers who wish to publish data in the system. It is important to note that this software package constitutes a reference implementation and that the NGDS architecture

  6. Teenagers as scientist - Learning by doing or doing without learning?

    NASA Astrophysics Data System (ADS)

    Kapelari, Suzanne; Carli, Elisabeth; Tappeiner, Ulrike

    2010-05-01

    Title: Teenagers as scientist - Learning by doing or doing without learning? Authors: Dr. Suzanne Kapelari* and Elsabeth Carli*, Ulrike Tappeiner** *Science Educaton Center,**Institute of Ecology,University Innsbruck, Austria The PISA (2006-2007) Assessment Framework asks for"…. the development of a general understanding of important concepts and explanatory framework of science, of the methods by which science derives evidence to support claims for its knowledge and of the strength and limitations of science in the real world….". To meet these requirements pupils are eventually asked to engage in "working like scientists learning activities" at school or while visiting informal learning institutions. But what does it mean in a real life situation? An ambitious project call named "Sparkling Science" was launched by the Austrian Federal Ministry of Science and Research in 2008, asking scientists to run their research in tight co-operation with local teachers and pupils. Although this would be enough of a challenge anyway, the ultimate goals of these projects are to achieve publishable scientific results in the particular field. The project design appears to be promising. Pupils and teachers are invited to gain first hand experience as part of a research team investigating current research questions. Pupils experience science research first hand, explore laboratories and research sites, gather data, discuss findings, draw conclusions and finally publish them. They set off on an exciting two years journey through a real scientific project. Teachers have the unique opportunity to get insight into a research project and work closely together with scientists. In addition teachers and pupils have the opportunity to gain first hand knowledge about a particular topic and are invited to discuss science matters on the uppermost level. Sparkling Science promoting agents have high expectations. Their website (www.sparklingscience.at) says: "Forming research teams that

  7. Quantification and Simulation of Metal Loading to the Upper Animas River, Eureka to Silverton, San Juan County, Colorado, September 1997 and August 1998

    USGS Publications Warehouse

    Paschke, Suzanne S.; Kimball, Briant A.; Runkel, Robert L.

    2005-01-01

    the 1998 study. The second affected reach was downstream from Arrastra Gulch, where the increase in zinc load seems related to a series of right-bank inflows with low pH Quantification and Simulation of Metal Loading to the Upper Animas River, Eureka to Silverton, San Juan County, Colorado, September 1997 and August 1998By Suzanne S. Paschke, Briant A. Kimball, and Robert L. Runkeland elevated dissolved zinc concentrations. A third increase in zinc load occurred 6,100 meters downstream from the 1997 injection site and may have been from ground-water discharge with elevated zinc concentrations based on mass-loading graphs and the lack of visible inflow in the reach. A fourth but lesser dissolved zinc load increase occurred downstream from tailings near the Lackawanna Mill. Results of the tracer-injection studies and the effects of potential remediation were analyzed using the one- dimensional stream-transport computer code OTIS. Based on simulation results, instream zinc concentrations downstream from the Kittimack tailings to upstream from Arrastra Gulch would approach 0.16 milligram per liter (the upper limit of acute toxicity for some sensitive aquatic species) if zinc inflow concentrations were reduced by 75 percent in the stream reaches receiving inflow from the Forest Queen mine, the Kittimack tailings, and downstream from Howardsville. However, simulated zinc concentrations downstream from Arrastra Gulch were higher than approximately 0.30 milligram per liter due to numerous visible inflows and assumed ground-water discharge with elevated zinc concentrations in the lower part of the study reach. Remediation of discrete visible inflows seems a viable approach to reducing zinc inflow loads to the upper Animas River. Remediation downstream from Arrastra Gulch is more complicated because ground-water discharge with elevated zinc concentrations seems to contribute to the instream zinc load.

  8. Extreme Crustal Thinning in a Transtensional Setting (Bay of Biscay - Western Pyrenees): from Observations to Modelling

    NASA Astrophysics Data System (ADS)

    Jammes, S.; Manatschal, G.; Lavier, L.; Tiberi, C.

    2008-12-01

    massif. In this area mylonitic shear zones are observed in lower crustal granulites that are overprinted by brittle fault zones and infiltrated by sediments, clearly supporting the existence of top- basement detachment faults. The Mauléon basin is limited to the north (along the St Suzanne thrust) by a sag basin; the Arzacq basin. The geometry of the Arzacq-Mauléon basin compares well with that of the Parentis basin suggesting that the processes responsible for their formation are similar. In our interpretation, left lateral strike-slip systems resulted in a strong pre-structuration that might explain the strong asymmetry and different evolution of both parts of the basins during the main rotation of Iberia in Aptian to Albian time. The sag basins in the northern parts may have resulted from the thermal subsidence associated with the crustal thinning during the initial strike-slip phase, whereas the crustal thinning and local mantle exhumation in the southern parts results from detachment faulting. To test the physical realism of our geological interpretation, we performed numerical experiments that are constrained by geological and geophysical observations. According to new kinematic reconstructions, two major phases of displacement are imposed to the model (a strike-slip dominating phase followed by an extension phase). We then compare the results of the numerical experiments with the observations made in the Parentis and Mauléon basins to complete the evolution model previously proposed.

  9. Obituary: Ronald Eugene Pitts, 1949-2008

    NASA Astrophysics Data System (ADS)

    MacConnell, D. Jack

    2009-01-01

    Ronald Pitts, systems engineer in the Commanding Branch of the Space Telescope Science Institute and long-time Computer Sciences Corporation employee, died suddenly of a stroke on 4 May 2008 at his home in Laurel, Maryland. He was a dedicated scientist-engineer, husband, father, volunteer, and cherished friend to many. Ron was born on 19 January 1949 in Tucson, Arizona, and was raised, along with his sister Suzanne, on his parents' turkey farm outside Tucson. He picked up practical knowledge from his father, Vernon, and became a competent amateur electrician and plumber, skills he kept honed and used throughout his life. His mother, Ruth (Stephens), was a nurse and taught him compassion and patience and encouraged his inquisitive mind. Ron attended public schools and enrolled at the University of Arizona, graduating with a B. S. in Astronomy in 1971. Being from a family of modest means, he put himself through school working summers and part-time at a large copper mine south of town. Ron enrolled in the graduate astronomy program at the Ohio State University [OSU] in the fall of 1971 where he was a first-year fellowship student. During his second and third years, he was the Perkins Assistant, taking spectra for the very exacting but appreciative Philip Keenan who once remarked to another faculty member that Ron was the best observer he ever had. Later, in 1980, Ron was co-author with Keenan on "Revised MK Spectral Types for G, K, and M stars" and again in 1985 in a study of supergiants in open clusters. He met his future wife, Patricia Moore, also a graduate student in the department, and they were wed in 1973. Ron was also partially supported during his early OSU years by an NSF grant to Robert Wing, writing parts of Wing's photometric reduction code and observing on the program at Kitt Peak and Flagstaff in the summer of 1974. Wing remembers him as being very competent and pleasant to work with. Ron's thesis topic was "Oscillator Strengths for Neutral Iron and

  10. Monitoring of Sea Floor Dynamics by the Application of Geodetic Deformation Analysis

    NASA Astrophysics Data System (ADS)

    Dorst, L.

    2003-04-01

    detection capability of smaller scale dynamics can be applied by scientists that wish to investigate the sea floor on a more detailed level than sand waves. The analysis possibilities can be illustrated by several examples, using data collected on the Netherlands continental shelf, in areas with and without a sand wave pattern. E.g., an example containing deliberately wrongly chosen critical values gives insight in the advantages and dangers of this method for sea floor dynamics monitoring. References: Caspary, W.F., 'Concepts of Network and Deformation Analysis'. Monograph 11, Kensington, Australia: University of New South Wales, School of Surveying, 1987. Chilès, Jean-Paul, and Pierre Delfiner, 'Geostatistics, modelling spatial uncertainty'. New York: John Wiley &Sons, 1999. Hulscher, Suzanne J. M. H., and G. Matthijs van den Brink, 'Comparison between predicted and observed sand waves and sand banks in the North Sea'. In: Journal of Geophysical Research, vol. 106, no. C5, pp.9327-9338, May 2001. International Hydrographic Organization, 'IHO Standards for Hydrographic Surveys, Special Publication no.44, 4th Edition'. Monaco: International Hydrographic Bureau, April 1998.

  11. PREFACE 12th International Workshop on Slow Positron Beam Techniques

    NASA Astrophysics Data System (ADS)

    Buckman, Stephen; Sullivan, James; White, Ronald

    2011-01-01

    ) Ronald White (JCU, Townsville)C Beling (Hong Kong) Jim Williams (UWA, Perth)R Brusa (Italy) Suzanne Smith (ANSTO, Sydney)P Coleman (UK) Igor Bray (Curtin U., Perth)C Corbel (France) Casten Makochekanwa (ANU, Canberra)M Fujinami (Japan) Michael Went (ANU, Canberra)R Krause-Rehberg (Germany) Adric Jones (ANU, Canberra)K Lynn (USA) Peter Caradonna (ANU, Canberra)H Schut (Netherlands) Ryan Weed (ANU, Canberra)P Simpson (Canada) Jason Roberts (ANU, Canberra)R Suzuki (Japan) Josh Machacek (ANU, Canberra)F Tuomisto (Finland) A Weiss (USA) SLOPOS photo SLOPOS-12 Delegates, 1-6 August 2010, Magnetic Island, Australia SPONSORS SLOPOS sponsors

  12. Obituary: Ronald Eugene Pitts, 1949-2008

    NASA Astrophysics Data System (ADS)

    MacConnell, D. Jack

    2009-01-01

    Ronald Pitts, systems engineer in the Commanding Branch of the Space Telescope Science Institute and long-time Computer Sciences Corporation employee, died suddenly of a stroke on 4 May 2008 at his home in Laurel, Maryland. He was a dedicated scientist-engineer, husband, father, volunteer, and cherished friend to many. Ron was born on 19 January 1949 in Tucson, Arizona, and was raised, along with his sister Suzanne, on his parents' turkey farm outside Tucson. He picked up practical knowledge from his father, Vernon, and became a competent amateur electrician and plumber, skills he kept honed and used throughout his life. His mother, Ruth (Stephens), was a nurse and taught him compassion and patience and encouraged his inquisitive mind. Ron attended public schools and enrolled at the University of Arizona, graduating with a B. S. in Astronomy in 1971. Being from a family of modest means, he put himself through school working summers and part-time at a large copper mine south of town. Ron enrolled in the graduate astronomy program at the Ohio State University [OSU] in the fall of 1971 where he was a first-year fellowship student. During his second and third years, he was the Perkins Assistant, taking spectra for the very exacting but appreciative Philip Keenan who once remarked to another faculty member that Ron was the best observer he ever had. Later, in 1980, Ron was co-author with Keenan on "Revised MK Spectral Types for G, K, and M stars" and again in 1985 in a study of supergiants in open clusters. He met his future wife, Patricia Moore, also a graduate student in the department, and they were wed in 1973. Ron was also partially supported during his early OSU years by an NSF grant to Robert Wing, writing parts of Wing's photometric reduction code and observing on the program at Kitt Peak and Flagstaff in the summer of 1974. Wing remembers him as being very competent and pleasant to work with. Ron's thesis topic was "Oscillator Strengths for Neutral Iron and

  13. The Dark Side of Nature: the Crime was Almost Perfect

    NASA Astrophysics Data System (ADS)

    2006-12-01

    Astrofisico di Arcetri, Italy), Guido Chincarini (INAF, Osservatorio Astronomico di Brera & Università degli Studi di Milano-Bicocca, Italy), Nino Panagia (Space Telescope Science Institute, USA), Gianpiero Tagliaferri, Dino Fugazza, Sergio Campana, Stefano Covino, and Paolo D'Avanzo (INAF, Osservatorio Astronomico di Brera, Italy), Daniele Malesani (SISSA/ISAS, Italy and Dark Cosmology Centre, Copenhagen), Vincenzo Testa, L. Angelo Antonelli, Silvia Piranomonte, and Luigi Stella (INAF, Osservatorio Astronomico di Roma, Italy), Vanessa Mangano (INAF/IASF Palermo, Italy), Kevin Hurley (University of California, Berkeley, USA), I. Felix Mirabel (ESO), and Leonardo J. Pellizza (Instituto de Astronomia y Fisica del Espacio). The Danish-led team is composed of Johan P. U. Fynbo, Darach Watson, Christina C. Thöne, Tamara M. Davis, Jens Hjorth, José Mará Castro Cerón, Brian L. Jensen, Maximilian D. Stritzinger, and Dong Xu (Dark Cosmology Centre, University of Copenhagen, Denmark), Jesper Sollerman (Dark Cosmology Centre and Department of Astronomy, Stockholm University, Sweden), Uffe G. Jørgensen, Tobias C. Hinse, and Kristian G. Woller (Niels Bohr Institute, University of Copenhagen), Joshua S. Bloom, Daniel Kocevski, Daniel Perley (Department of Astronomy, University of California at Berkeley, USA), Páll Jakobsson (Centre for Astrophysics Research, University of Hertfordshire, UK), John F. Graham and Andrew S. Fruchter (Space Telescope Science Institute, Baltimore, USA), David Bersier (Astrophysics Research Institute, Liverpool John Moores University, UK), Lisa Kewley (University of Hawaii, Institute of Astronomy, USA), Arnaud Cassan and Marta Zub (Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg, Germany), Suzanne Foley (School of Physics, University College Dublin, Ireland), Javier Gorosabel (Instituto de Astrofisica de Andalucia, Granada, Spain), Keith D. Horne (SUPA Physics/Astronomy, University of St Andrews, Scotland, UK), Sylvio

  14. Preface: SciDAC 2008

    NASA Astrophysics Data System (ADS)

    Stevens, Rick

    2008-07-01

    scenes an enormous amount of work is required to make a large conference go smoothly. First I thank Cheryl Zidel for her tireless efforts as organizing committee liaison and posters chair and, in general, handling all of my end of the program and keeping me calm. I also thank Gail Pieper for her work in editing the proceedings, Beth Cerny Patino for her work on the Organizing Committee website and electronic theater, and Ken Raffenetti for his work in keeping that website working. Jon Bashor and John Hules did an excellent job in handling conference communications. I thank Caitlin Youngquist for the striking graphic design; Dan Fay for tutorials arrangements; and Lynn Dory, Suzanne Stevenson, Sarah Pebelske and Sarah Zidel for on-site registration and conference support. We all owe Yeen Mankin an extra-special thanks for choosing the hotel, handling contracts, arranging menus, securing venues, and reassuring the chair that everything was under control. We are pleased to have obtained corporate sponsorship from Cray, IBM, Intel, HP, and SiCortex. I thank all the speakers and panel presenters. I also thank the former conference chairs Tony Metzzacappa, Bill Tang, and David Keyes, who were never far away for advice and encouragement. Finally, I offer my thanks to Michael Strayer, without whose leadership, vision, and persistence the SciDAC program would not have come into being and flourished. I am honored to be part of his program and his friend. Rick Stevens Seattle, Washington July 18, 2008

  15. EDITORIAL: Focus on Iron-Based Superconductors FOCUS ON IRON-BASED SUPERCONDUCTORS

    NASA Astrophysics Data System (ADS)

    Hosono, Hideo; Ren, Zhi-An

    2009-02-01

    -L Drechsler, N Kozlova, M Bartkowiak, J E Hamann-Borrero, G Behr, K Nenkov, H-H Klauss, H Maeter, A Amato, H Luetkens, A Kwadrin, R Khasanov, J Freudenberger, A Köhler, M Knupfer, E Arushanov, H Rosner, B Büchner and L Schultz Low-energy spin dynamics in the antiferromagnetic phase of CaFe2As2 N J Curro, A P Dioguardi, N ApRoberts-Warren, A C Shockley and P Klavins Muon spin rotation study of magnetism and superconductivity in BaFe2-xCoxAs2 and Pr1-xSrxFeAsO C Bernhard, A J Drew, L Schulz, V K Malik, M Rössle, Ch Niedermayer, Th Wolf, G D Varma, G Mu, H-H Wen, H Liu, G Wu and X H Chen Magnetic impurities in the pnictide superconductor Ba1-xKxFe2As2 Sutirtha Mukhopadhyay, Sangwon Oh, A M Mounce, Moohee Lee, W P Halperin, N Ni, S L Bud'ko, P C Canfield, A P Reyes and P L Kuhns Neutron scattering investigation of the magnetic order in single crystalline BaFe2As2 M Kofu, Y Qiu, Wei Bao, S-H Lee, S Chang, T Wu, G Wu and X H Chen An NMR study on the F-doping evolution of the iron oxypnictide LaFeAs(O1-xFx) Y Nakai, S Kitagawa, K Ishida, Y Kamihara, M Hirano and H Hosono The peculiar physical properties and phase diagram of BaFe2-xCoxAs2 single crystals X F Wang, T Wu, G Wu, R H Liu, H Chen, Y L Xie and X H Chen Synthesis of LnFeAsO1-y superconductors (Ln=La and Nd) using the high-pressure technique Kiichi Miyazawa, Kunihiro Kihou, Motoyuki Ishikado, Parasharam M Shirage, Chul-Ho Lee, Nao Takeshita, Hiroshi Eisaki, Hijiri Kito and Akira Iyo Correlation effects in the iron pnictides Qimiao Si, Elihu Abrahams, Jianhui Dai and Jian-Xin Zhu Competition/coexisitence of magnetism and superconductivity in iron pnictides probed by muon spin rotation Soshi Takeshita and Ryosuke Kadono Impurity-induced in-gap state and Tc in sign-reversing s-wave superconductors: analysis of iron oxypnictide superconductors Yuko Senga and Hiroshi Kontani Intrinsic magnetic properties of the superconductor NdFeAsO0.9F0.1 from local and global measurements R Prozorov, M E Tillman, E D Mun and P C Canfield